EP3477027B1 - Assembly comprising an electronic lock and an electronic key - Google Patents

Assembly comprising an electronic lock and an electronic key Download PDF

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Publication number
EP3477027B1
EP3477027B1 EP18194663.3A EP18194663A EP3477027B1 EP 3477027 B1 EP3477027 B1 EP 3477027B1 EP 18194663 A EP18194663 A EP 18194663A EP 3477027 B1 EP3477027 B1 EP 3477027B1
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EP
European Patent Office
Prior art keywords
key
lock
blade
axis
channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP18194663.3A
Other languages
German (de)
French (fr)
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EP3477027A1 (en
Inventor
Ambroise VIOT
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cogelec SAS
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Cogelec SAS
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Publication date
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Publication of EP3477027A1 publication Critical patent/EP3477027A1/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/06Controlling mechanically-operated bolts by electro-magnetically-operated detents
    • E05B47/0611Cylinder locks with electromagnetic control
    • E05B47/0619Cylinder locks with electromagnetic control by blocking the rotor
    • E05B47/0626Cylinder locks with electromagnetic control by blocking the rotor radially
    • E05B47/063Cylinder locks with electromagnetic control by blocking the rotor radially with a rectilinearly moveable blocking element
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00Locks or fastenings with special structural characteristics
    • E05B63/003Locks or fastenings with special structural characteristics with key ejection means
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B2047/0048Circuits, feeding, monitoring
    • E05B2047/0057Feeding
    • E05B2047/0058Feeding by batteries
    • EFIXED CONSTRUCTIONS
    • E05LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05BLOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B2047/0048Circuits, feeding, monitoring
    • E05B2047/0057Feeding
    • E05B2047/0063Energy transfer from key to lock, e.g. for emergency opening
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C2009/00753Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys
    • G07C2009/00761Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by active electrical keys with data transmission performed by connected means, e.g. mechanical contacts, plugs, connectors
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00658Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys
    • G07C9/00706Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys operated by passive electrical keys with conductive components, e.g. pins, wires, metallic strips
    • GPHYSICS
    • G07CHECKING-DEVICES
    • G07CTIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
    • G07C9/00Individual registration on entry or exit
    • G07C9/00174Electronically operated locks; Circuits therefor; Nonmechanical keys therefor, e.g. passive or active electrical keys or other data carriers without mechanical keys
    • G07C9/00944Details of construction or manufacture

Definitions

  • the invention relates to an assembly comprising an electronic lock and an electronic key.
  • Embodiments of this set may include one or more of the features of the dependent claims.
  • the figure 1 is a door 2.
  • This door 2 has an inner side, typically located within a room, and an outer side of the opposite side. Subsequently, the terms “inner” and “outer” refer, respectively, to the inner and outer side of the door 2.
  • the door 2 here extends in a vertical plane. Thereafter, the vertical direction is indicated by the direction Z of an orthogonal reference XYZ.
  • the direction X is perpendicular to the vertical plane in which the door 2 extends mainly. All the figures are oriented relative to this XYZ mark.
  • the door 2 is equipped with a handle 4 and an electronic lock 6. To simplify the figure 1 only part of the door 2 is shown.
  • the general mechanical architecture of the lock 6 is, for example, identical to that described in the application FR3025236 . For this reason, only the details necessary to understand the invention are given here. For other details, the reader is returned on request FR3025236 .
  • the lock 6 comprises a bolt 10 movable in translation, parallel to the Y direction, alternately and reversibly, between a locked position and an unlocked position.
  • the bolt 10 protrudes beyond the edge of the door 2 to engage in a strike fixed without any degree of freedom on the frame of the door 2.
  • the bolt 10 locks the door 2 in its closed position.
  • the unlocked position the bolt 10 is returned inside the door 2 and no longer protrudes beyond the edge of this door 2.
  • the door 2 can be moved by a user of a closed position to an open position by actuating the handle 4.
  • the lock 6 also comprises a cylinder 12 and a screw 14 for fixing the cylinder 12 in the door 2.
  • the cylinder 12 moves the bolt 10 from its locked position to its unlocked position when a key 16 ( figure 2 ), allowed to unlock the lock 6, is introduced and then turned inside this cylinder.
  • the cylinder 12 also moves the bolt 10 from its unlocked position to its locked position when the authorized key is inserted and turned in the opposite direction inside this cylinder.
  • the cylinder prevents the displacement of the bolt 10 from its locked position to its unlocked position.
  • the key 16 can be introduced inside the cylinder 12 from the outside and, alternately, from the inside of the door 2.
  • the cylinder 12 opens on each side of the door 2.
  • the screw 14 has a head that is flush with the edge of the door 2. The threaded end of the screw 14 is screwed into the cylinder 12 to hold it in place inside the door 2.
  • the figure 2 represents in more detail the cylinder 12.
  • the cylinder 12 is in accordance with the European format.
  • the cylinder 12 extends along an axis 20 for introducing the key.
  • the axis 20 is here parallel to the direction X.
  • the cylinder 12 comprises a stator 22 fixed without any degree of freedom to the door 2 by means of the screw 14 and a bit 24 housed inside a notch transverse 26.
  • the notch 26 extends in a transverse plane 28 parallel to the directions Y, Z.
  • the plane 28 is a plane of symmetry for the bit 24.
  • the bit 24 rotates counterclockwise about the axis 20 to move the bolt 10 from its locked position to its unlocked position and in the opposite direction to move the bolt 10 from its unlocked position to its locked position.
  • the plane 28 also divides the stator 22 into two parts.
  • the part of the stator 22 located on the inside of the door 2 is called “inner half-stator” and has the reference 30.
  • the portion of the stator 22 located on the outside of the door 2 is called “outer half-stator” and door 32.
  • the half-stators 30 and 32 are almost symmetrical to one another with respect to the plane 28. Thus, only the half-stator 32 is described in more detail below.
  • the half-stator 32 comprises a front cover 34 parallel to the plane 28 and directly exposed to the outside of the door 2. This front cover prevents direct access to the moving parts located inside the cylinder 12 so as to protect them from burglary attempts.
  • This cover 34 is traversed by an orifice 36 intended to receive a blade 38 of the key 16.
  • the orifice 36 is centered on the axis 20.
  • the orifice 36 is shaped so as to allow the introduction of the blade 38 to the inside of the cylinder 12 by a translation movement along the axis 20.
  • the orifice 36 is arranged inside a ring 200 mounted free to rotate about the axis 20.
  • the orifice 36 is also shaped to drive in rotation, by shape cooperation with the blade 38, the ring 200 about the axis 20 when the key 16 inserted inside the cylinder 12 is turned on itself about the axis 20.
  • the key 16 comprises a body 39 from which the blade 38 extends. This body 39 forms a gripping means which allows the user to insert and then turn the key 16 inside the lock 6.
  • the key 16 comprises in particular a transmitter 40 and a battery 41 housed inside the body 39.
  • the blade 38 is devoid of raised pattern for moving pins of the lock to cause mechanical unlocking of the lock 6.
  • the blade 38 has at least one pattern adapted to cooperate with a pattern of complementary shape on a rotor of the cylinder 12 for driving the rotor in rotation when the key rotates.
  • this pattern on the blade 38 is a flat 42 located on its distal end.
  • the transmitter 40 is particularly adapted to transmit, via a wired link, an access code to the lock 6.
  • the battery 41 is also used to supply the lock 6 via a wired link .
  • These wired links are established only when the key 16 is in a depressed position inside the lock 6.
  • the blade 38 has electrical terminals adapted to cooperate with corresponding electrical contacts of the lock 6 to establish these wired electrical connections between the key 16 and the lock 6.
  • the blade 38 comprises six electrical terminals arranged symmetrically on either side of the axis of the blade 38.
  • the symmetrical terminals each other are part of the same conductive ring. In the figures, only the terminals 44 to 46 located on the same side of the blade 38 are visible.
  • the figure 3 represents more in detail the inside of the cylinder 12.
  • the stator 22 comprises a channel 50, of circular cross section, passing right through the stator 22 and thus the two half-stators 30 and 32.
  • This channel 50 extends the along the axis 20.
  • the axis 20 is coincident with the axis of symmetry of revolution of the channel 50.
  • the channel 50 comprises a portion made in another material such as ceramics.
  • this portion of the channel 50 is made using a sheath 51 ( figures 4 and 18 ) inside which these electrical contacts are housed. This sheath 51 is not represented on the figures 3 and 11 .
  • the channel 50 receives a rotor 52.
  • the rotor 52 is for example identical to that described in detail, particularly with reference to Figures 5 and 6 demand FR3025236 .
  • the rotor 52 has a housing 96 adapted to receive the end of the blade 38.
  • the cross section of this housing 96 comprises at least one shape complementary to the distal end of the blade 38 so as to be rotated by the blade 38.
  • this complementary shape is a flat part capable of meshing with the flat part 42 of the blade 38.
  • the ring 200 is mounted inside the channel 50.
  • the ring 200 is located at the inlet of the channel 50, that is to say at the end of the channel 50 which opens into the cache 34
  • the front face of the ring 200 is flush with the cover 34.
  • the half-stator 32 comprises a shell 54 entirely located on the outside of the plane 28 and a half of a bar 56 located on the outer side of this plane 28.
  • the bar 56 is for example symmetrical with respect to the plane 28.
  • the shell 54 includes the front cover 34, the ring 200 and the half of the channel 50 located on the outside.
  • the shell 54 is formed of a single block of rigid material.
  • rigid material or “rigid material” is meant a material whose Young's modulus at 25 ° C. is greater than 100 GPa or 150 GPa and, preferably, greater than 200 GPa.
  • the half-stator 32 comprises a controllable mechanism 76 for unlocking the lock.
  • This mechanism 76 is able to move a member 80 for blocking the rotation of the rotor 52.
  • This mechanism 76 is fixed, without degree of freedom, on the shell 54.
  • the mechanism 76 and the member 80 are similar or identical. to those described in the application FR3025236 . To increase the readability of the figure 3 the representations of mechanism 76 and organ 80 have been simplified.
  • the member 80 moves in translation between a locking position (represented on the figure 3 ) and a retracted position.
  • a locking position represented on the figure 3
  • a retracted position In the locking position, a distal end of the member 80 is received inside an anfractuosity formed in the rotor 52 to prevent the rotation of this rotor about the axis 20.
  • the retracted position the distal end of the member 80 is located outside the anfractuosity, so that the rotor 52 can be rotated by the key 16 around the axis 20.
  • the member 80 moves only in translation between its locking position and its retracted position.
  • this displacement in translation is parallel to the direction Z.
  • the mechanism 76 typically comprises a controllable electric and / or magnetic actuator 82 and an electronic control unit 84 for this actuator 82.
  • the actuator 82 is able to move the member 80 between its blocking position and its retracted position in response to a command transmitted by the unit 84. In the absence of control, the actuator 82 keeps the member 80 in its locking position.
  • the unit 84 compares the access code received with prerecorded access codes. If the access code received corresponds to one of the prerecorded access codes, then the unit 84 transmits the unlock command. Otherwise, the unit 84 does not transmit this unlock command.
  • the unit 84 communicates with the transmitter 40 via a wire link 106 which is established when the key 16 is in its depressed position inside the lock 6.
  • the battery 41 transmits the energy required to supply the mechanism 76 via two wired links 107 and 108.
  • the link 106 is established via the terminal 44 and an electrical contact 100 of the half-stator 32.
  • the links 107 and 108 are established via the terminals 45, 46 and two electrical contacts 101 and 102 of the half-stator 32.
  • the key 16 and the half-stator 32 also comprise, respectively, three electrical terminals and three additional electrical contacts. These terminals and additional electrical contacts are used to simultaneously establish three additional redundant wired links with the wired links 106 to 108. These additional wired links are derived from the wired links 106 to 108 by symmetries with respect to the vertical plane containing the axis 20. By therefore, they are not described in more detail later.
  • the electrical contacts 100 to 102 are made, for example, as those described in detail in the patent application filed under the number FR1756907 on July 21, 2017 by COGELEC.
  • the figure 4 is in substantially horizontal section, the key 16 in its depressed position inside the lock 6.
  • the cutting plane is slightly inclined so that only the contacts 100 to 102 are visible in this figure.
  • some details of the lock 6 have been omitted to simplify it. For example, paneton 4 is omitted.
  • the contacts 100 to 102 are directly in mechanical support on the electrical terminals, respectively, 44 to 46.
  • the distal end of the blade 38 abuts on a push-button 120 which pushes the key 16 towards a retracted position (represented on the figure 18 ).
  • the electrical contacts 100 to 102 are no longer directly in mechanical support on the electrical terminals, respectively, 44 to 46.
  • the electrical connections between the key 16 and the lock 6 are interrupted. Therefore, the lock 6 is no longer powered by the key 16.
  • a larger portion of the blade 38 is located outside the channel 50 in the depressed position.
  • the spool 120 has a flat front face 122 parallel to the plane YZ and facing the orifice 36. The distal end of the blade 38 bears directly on this face 122.
  • the spool 120 comprises a rod 124 rigid material which extends inward along the axis 20.
  • the rod 124 has a cylindrical portion 126 of circular section which has a circular bulge 128.
  • the spool 120 also comprises a spring 130, for example a helical spring, which surrounds the cylindrical portion 126.
  • the spring 130 is on one side bearing on the bulge 128 and, on the opposite side, resting on a shoulder 132 of the rotor 52.
  • the spring 130 In the depressed position, the spring 130 permanently urges the key 16 from its depressed position to its retracted position. More specifically, in the depressed position, the potential energy accumulated in the spring 130 is sufficient to move the key 16 from its depressed position to its retracted position as soon as the user removes his hand from the key 16.
  • the stiffness of the The spring 130 is thus chosen as a function of the stroke of the key 16 between its recessed and retracted positions and the different forces to be overcome in order to automatically return the key 16 from its depressed position to its retracted position.
  • the stroke 16 between the depressed position and the retracted position is greater than 0.6 mm.
  • this race is equal to 0.95 mm.
  • the stiffness of the spring 130 is 1.55 N / mm.
  • the key 16 comprises an electronic circuit 140 housed inside the body 39.
  • This electronic circuit 140 includes in particular the transmitter 40 and the battery 41. It is connected to the terminals 44 to 46 by the intermediate conductive tracks arranged in the blade 38.
  • the body 39 To receive the circuit 140 inside the body 39, the body 39 has a lower shell and an upper shell nested one inside the other. In their nested positions, these shells delimit a hollow interior space in which is lodged and fixed circuit 140. On Figures 5 to 7 only the lower shell 142 is shown.
  • the terminals 44 to 46 are located on a portion 144 of the blade 38 intended to be introduced inside the channel 50. Starting from the distal end of the key 16, the portion 144 comprises successively: the flat part 42, the terminals 44 to 46, a dwelling and a section 148.
  • the housing is a transverse groove 146. This groove 146 is described in more detail below.
  • the section 148 is a cylinder of non-circular cross section. More specifically, its cross section is the complement of the cross section of the orifice 36. Thus, the rotation of the blade 38 rotates the ring 200.
  • the section 148 comprises an upper flat 150 and a lower flat of the opposite side. On the figure 5 only the flat 150 is visible.
  • the key 16 also comprises a protective flap 160 movable in translation along the axis of the blade 38 between an advanced position and a retracted position.
  • the advanced and retracted positions of the flap 160 are represented, respectively, on the Figures 6 and 7 .
  • the flap 160 In the advanced position, the flap 160 completely covers the terminals 44 to 46. In this advanced position, the flap 160 thus protects the electrical terminals from external aggressions.
  • the shutter 160 thus makes it possible to prevent the terminals 44 to 46 from being accidentally short-circuited between each other during the storage of the key 16. In particular, the shutter 160 prevents the terminals 44 to 46 from being accidentally short-circuited between them by another metal object such as another key attached to the same key-ring as the key 16. Such an accidental short-circuit may result in unnecessary power consumption and thus contributes to reducing the battery life 41.
  • the terminals 44 to 46 are directly exposed to their external environment, which allows them to enter directly into mechanical contact with the electrical contacts 100 to 102.
  • the groove 146 and the section 148 are also directly accessible from the outside.
  • the flap 160 is formed of a tip 162, rigid material, mounted free in translation along the blade 38.
  • This tip 162 completely surrounds the blade 38. Its cross section is similar to that of the blade 38. By for example, it has an upper flat 164 and a lower flat.
  • the endpiece 162 has a stopper 166 adapted to move, by shape cooperation with a corresponding stop of the lock 6, the tip 162 from the advanced position to the retracted position when the blade 38 is inserted inside the channel 50
  • this stop 166 corresponds to the annular distal end of the tip 162 facing the distal end of the blade 38.
  • the abutment 166 abuts directly on the periphery of the orifice 36. Then, as the user introduces the blade 38 inside the channel 50, the periphery of the orifice 36 cooperates with the stop 166 to move at the same time the flap 160 from its advanced position to its retracted position. It is therefore around the orifice 36 which here constitutes the corresponding abutment of the lock 6.
  • the tip 162 On the opposite side to the stop 166, the tip 162 has an annular proximal end.
  • this annular proximal end takes the form of a flange 168 projecting around its periphery.
  • the blade 38 also has a portion 170 which remains outside the channel 50 when the key is in its depressed position.
  • the portion 170 is covered with a rigid cap 172.
  • This cap 172 is fixed without any degree of freedom to the body 39.
  • This cap 172 completely surrounds the portion 170 while leaving around this portion 170 a hollow space able to fully accommodate the body. 162 when the latter is in its retracted position and only partially when the nozzle 162 is in its advanced position.
  • the cap 172 has an opening 174 through which the tip 162 slides between its retracted and advanced positions. In the advanced position, the flange 168 bears on the periphery of the opening 174, which holds the tip 162 around the blade 38.
  • the key 16 comprises a spring 178 adapted to automatically move the flap 160 from its retracted position to its advanced position as soon as the stop 166 is no longer supported on the periphery of the orifice 36. effect permanently the nozzle 162 to its advanced position.
  • the spring 178 is a helical spring which surrounds the portion 170 of the blade 38. On one side, it bears on the flange 168 and, on the opposite side, it bears on the body 39. For example, it is resting on the hull 142.
  • the spring 178 is also housed inside the cap 172 so that it is not accessible from outside the key 16.
  • the spring 178 is not necessarily sized to be able alone to move the key 16 from its depressed position to its retracted position as soon as the user removes the hand from this key.
  • the stiffness of the spring 178 is 0.15 N / nm and its compression stroke is 11.5 nm.
  • the ring 200 is described in the particular case where it allows only one withdrawal position.
  • the key 16 must be rotated 360 ° about the axis 20 starting from this withdrawal position and before returning to this withdrawal position.
  • the angular position of the key 16 is its angular position about the axis 20 when it is pushed inside the lock 6.
  • the ring 200 is traversed by a straight hose 202 which extends along the axis 20.
  • the end of the hose 202 which opens on the side of the face 34 forms the orifice 36.
  • This hose 202 is here cylindrical. Its cross section corresponds to that of the blade 38 so that the portion 144 of the blade 38 can be introduced inside the channel 50 by sliding through the hose 202.
  • the cross section of the hose 202 has a shape complementary to that of the section 148 so that the rotation of the key 16 also causes the ring 200 to rotate about the axis 20.
  • the hose 202 comprises an upper flat surface 204 and a lower flat surface 206 adapted to cooperate, respectively, with the upper and lower flats. lower section 148.
  • the ring 200 comprises a dust-proof valve 210.
  • This valve 210 is movable, when the blade 38 is introduced inside the channel 50, from a closed position (shown in FIG. figure 9 ) to an open position (shown on the figure 10 ). In the closed position, the valve 210 obstructs at least 80% and, preferably, 90% or 95% of the cross section of the orifice 36. Thus, in the closed position, the valve 210 prevents foreign bodies, such as dust, enter the channel 50. In the open position, on the contrary, the inlet of the orifice 36 is completely disengaged, which allows the blade 38 to be introduced to the Inside the channel 50.
  • the valve 210 is moved from its closed position to its open position by the force exerted by the distal end of the blade 38 when it is pushed against the valve 210 in the direction of insertion of the key.
  • the valve 210 comprises two movable jaws 212 and 214.
  • Each jaw 212, 214 is mounted free to rotate about, respectively, axes 216 and 218 parallel to the axis 20.
  • These axes 216 and 218 are integral, without any degree of freedom, the ring 200. Thus, when the ring 200 rotates, they also turn.
  • each jaw 212, 214 comprises a bearing, respectively 220 and 222, inside which is received a pin, respectively 224 and 226 ( Figures 9 and 10 ). On the figure 8 , only the pin 226 to be received in the bearing 222 is visible.
  • the two jaws 212, 214 are in mechanical support on one another to close the orifice 36.
  • These jaws 212, 214 comprise bevelled portions 228, 230 ( Figures 9 and 10 ) to drive these jaws 212, 214 in rotation about their respective axes until completely release the orifice 36 when the end of the blade 38 presses on these beveled portions.
  • the valve 210 also comprises springs 232, 234 which permanently urge, respectively, the jaws 212 and 214 towards the closed position.
  • the springs 232, 234 are mounted around, respectively, pins 216 and 218.
  • Each duct 240 to 242 has a front end that opens directly into the casing 202 and a rear end that opens onto a circular path 250 ( figure 11 ) on the inner periphery of the channel 50.
  • the path 250 is an inwardly projecting band of the channel 50.
  • the path 250 makes the complete turn of the axis 20.
  • the orthogonal projection of the path 250 in the plane 28 is a circle centered on the axis 20.
  • angular offset between a first and a second element is defined as the angle between a first and a second half-line contained in the same transverse plane parallel to the directions Y and Z, the origin of these first and second elements.
  • second half-lines being located on the axis 20. The first half-line passes through the isobarycentre of the first element and the second half-line passes through the isobarycentre of the second element.
  • the angular offsets between the notches 252 to 254 are chosen so that there is only one withdrawal position.
  • these angular offsets are chosen so that when each rear end of the ducts 240 to 242 are opposite the notches 252 to 254, then each front end of these ducts opens onto a circular portion of the cross section. of the blade 38, that is to say outside the upper flats 150 and lower.
  • the angular offset between the notches 252 and 253 is equal to 80 °
  • the angular offset between the notches 252 and 254 is equal to 145 °
  • the angular offset between the notches 253 and 254 is equal to 135 ° ( figure 12 ).
  • the angular offsets between the ducts 240 to 242 are identical to the angular offsets between the notches 252 to 254. Thus, in the retracted position, the rear end of each duct opens on a respective notch.
  • the pins 244 to 246 are identical to each other. Thus, subsequently, only the pin 244 is described in detail.
  • the pin 244 is freely mounted in translation inside the duct 240 between a retaining position, represented on the Figures 10, 13 and 15 , and a retracted position shown on the figures 14 and 16 .
  • the pin 244 has a front portion facing the casing 202 and a rear portion facing the path 250. In the retained position, the front portion projects into the casing 202.
  • the groove 146 of the blade 38 is arranged to receive this front portion of the pin 244 when the key is in its depressed position ( figure 15 ).
  • the groove 146 and the front portion of the pin 244 are shaped to retain the blade 38 wedged within the channel 50, as long as the pin 244 is held in its retaining position.
  • the rear portion is slightly protruding beyond the outer periphery of the ring 200 to bear directly on the path 250 (see figures 11 and 15 ).
  • the road 250 locks the pin 244 in its retained position and thus prevents the removal of the key 16.
  • each pin 244 to 246 is a spherical ball.
  • the balls roll on the path 250. Therefore, in the manner of a ball bearing, this strongly limits the friction between the ring 200 and the conduit 50. By this, the rotation of the key 16 is facilitated and the wear of the ring 200 and the path 250 is reduced.
  • the front end of each of the ducts 240 to 242 is here slightly pinched to retain the balls inside these ducts in the retained position.
  • the balls are stainless steel balls 2 mm in diameter.
  • the ring 200 comprises return means which permanently urge each pin 244 to 246 towards their retaining position.
  • these return means are made using an elastic ring 260 (see figs 8, 13 and 14).
  • Ring 260 is, in this embodiment, a split metal ring. It extends over more than 350 ° around the axis 20.
  • the ring 260 covers only a portion, called the covered portion, of the rear portion of each pin 244 to 246.
  • the ring 260 leaves a portion of -covered the back of each pin. It is these uncoated portions that are received within the notches 252 to 254 when the pins are in their retracted position.
  • the ring 260 rests on the portions covered with the rear portions of the pins that they are permanently pushed back to their retaining position.
  • the diameter of the ring 260 is greater when all the pins 244 to 246 are in their retracted position ( figure 14 ) only when they are in their restrained position ( figure 13 ).
  • the diameter of the ring 260 increases by 0.8 mm as the pins 244 to 246 move from their retaining position to their retracted position.
  • the ring 260 is designed to represent a stiffness such that, when the key 16 is in the retracted position and the user has withdrawn his key hand 16, the forces exerted by the springs 130 and 178 which push the key 16 to a fully retracted position, are not sufficient to completely disengage the front portions of the pins 244 to 246 of the groove 146. Thus, when the key 16 is in its retracted position and the user withdraws his hand from this key, the key remains held inside the channel 50 by the pins 244 to 246.
  • the stiffness of the ring 260 is here such that the restoring force which is exerted on each of the pins 244 to 246 in their retracted position and equal to 3 N. In the retained position, this restoring force is equal to 1, N.
  • this profile comprises successively moving towards the body 39: an inclined portion 270, then a flat bottom 272 and another inclined portion 274.
  • the portion 270 makes it possible to transform, when the key is in its depressed position, the force exerted by the user parallel to the direction X to remove the key 16 in a radial force which pushes each pin 244 to 246 of its retaining position towards its retracted position against the restoring force of the ring 260.
  • the width of the bottom 272 is chosen to allow a movement of the key 16 between these depressed and retracted positions even when the front portions of the pins 244 to 246 are received inside the groove 146.
  • the width of the bottom 272 is chosen equal to 0.95 mm, which allows in combination with the inclined portions 270 and 274, a displacement of 0.95 mm of the key between the depressed position and the retracted position.
  • the inclined portion 274 here is symmetrical with the inclined portion 270 with respect to a transverse median plane of the groove 146.
  • the operation of the key 16 and the lock 6 is as follows. Initially, the ring 200 is in the retracted position. When a user wishes to open the door 2, he places the distal end of the blade 38 opposite the orifice 36, then pushes the key along the axis 20. The distal end then spreads the jaws 212 and 214 so that the valve 210 passes from its closed position to its open position under the action of the introduction of the blade 38. In the same movement, the stop 166 of the tip 162 bears on around the orifice 36. From this moment, the flap 160 gradually moves back from its advanced position to its retracted position as the blade 38 enters the inside of the channel 50.
  • the blade 38 comes into contact with the front parts of the pins 244 to 246 and pushes these pins 244 to 246 from their retaining position to their retracted position (see FIG. figure 16 ).
  • the balls roll on the outer periphery of the portion 144 of the blade 38.
  • the contacts 100 to 102 are directly in mechanical support, respectively, on the terminals 44 to 46.
  • the electrical connections between the key 16 and the lock 6 are thus established.
  • the lock 6 is powered by the battery 41 and the key exchanges information with the lock 6 to check if this key is a key authorized to open the door 2. If the key is not authorized to open the door 2, the rotation of the rotor 52 is blocked and the door 2 can not be opened.
  • the rotation of the rotor 52 is allowed.
  • the user can then turn the key 16 around the axis 20.
  • the rear parts of the pins 244 to 246 come directly on the path 250.
  • the balls roll on the path 250.
  • the path 250 locks the pins 244 to 246 in their retaining position (see FIG. figure 15 ).
  • the user can therefore no longer remove the key 16.
  • the mechanical cooperation of the front portion of each pin 244 to 246 with the inclined portion 270 of the groove 146 prevents the key 16 from being withdrawn from the retracted position. .
  • the key 16 Once the key 16 has made one or more complete turns, it returns to the retracted position. In this position, the user pulls the key 16 outward. The inclined portion 270 then simultaneously moves the pins 244 to 246 from their retained position to their retracted position (see FIG. figure 16 ). The key 16 can then be completely removed from the lock 6. As the blade 38 is removed from the channel 50, the flap 160 gradually returns to its advanced position under the action of the spring 178. Therefore, as soon as the key 16 is completely removed from the channel 50, the flap 160 completely covers the electrical terminals 44 to 46 and protect them.
  • the springs 130 and 178 then automatically move the key 16 from the depressed position to the retracted position. Thanks to this, the electrical connections between the key 16 and the lock 6 are automatically interrupted. Thus, if the user forgets or leaves his key inside the lock 6, the lock 6 is no longer powered by the battery 41. The battery 41 therefore does not discharge unnecessarily. This prolongs its life. Note also that even in the retracted position, the pins 244 to 246 cooperate with the groove 146 to maintain the blade 38 inside the channel 50. Therefore, the key 16 is not ejected in outside the lock 6 when the user withdraws his hand. This avoids knocking the key down.
  • Each pin may have several balls housed inside the same conduit.
  • the balls are placed one behind the other inside the conduit.
  • Other arrangements of these beads are possible.
  • the various arrangements of the balls inside a conduit as described in the application filed in France under No. 1756907 on July 21, 2017 can be transposed without difficulty to the case of the balls located inside one of the ducts 240 to 242.
  • the pin is formed of several balls, placed one behind the other, they can to be separated from each other by a cylindrical piston or any other sliding part.
  • the balls 244 to 246 are replaced by cylindrical pistons slidable between the retained positions and the retracted positions but unable to rotate on themselves about an axis parallel to the axis 20.
  • the ring comprises only one or two ducts and therefore only one or two pins.
  • the ring may also have more than three ducts and therefore more than three separate pins.
  • the number of notches may be less than the number of pins, equal to the number of pins or greater than this number of pins. In fact, the number of pins and the number of notches are chosen according to the number of desired withdrawal positions.
  • the angular gaps between the conduits of the ring 200 and between the notches can be modified to obtain additional withdrawal positions or, on the contrary, to eliminate some of them.
  • the angular offsets between the ducts and the notches may be provided to allow several distinct withdrawal positions, for example, angularly offset from each other by 90 ° or 180 °.
  • the ring 200 does not necessarily flush the facade 34. In a variant, the ring 200 is set back from the facade 34 inside the channel 50.
  • the ring 260 can be replaced by three elastic tongues. Each of these tabs has a fixed end without any degree of freedom on the periphery of the ring and an opposite end resting on the rear part of a respective pin so as to permanently request this pin to its retaining position.
  • the ring 260 may also be wider than what has been described so far.
  • the ring may cover more than half of the back portion of each pin.
  • the circular path may comprise a circular groove adapted to receive the elastic ring when the pins are in their retracted position and the notches open into this groove.
  • the ring in the retracted position, when the key is removed, the ring is received within this groove and the uncovered portions of the back portions of the pins are received in respective notches. Outside the withdrawal position, at least one of the uncovered portions is supported on the path 250, which prevents the displacement of this pin from its retained position to its retracted position.
  • the bottom 272 of the groove 146 is magnetized and the pins are made of ferromagnetic materials. Under these conditions, the pins are magnetically attracted permanently towards the bottom 272 as soon as they are in front of this bottom.
  • the ring 260 is replaced by an elastic ring made of elastomeric material. In this case, this ring of elastomeric material is not split.
  • the width of the elastic ring is greater than or equal to the width of the rear portions of the pins.
  • the ring is perforated in front of each of the rear portions of the pins, so that they can protrude through the ring to be received inside the notches.
  • the path 250 is not necessarily a protruding band inside the channel 50.
  • the path 250 is flush with the inner wall of the channel 50 or forms a groove in the wall of the channel 50 .
  • the spring 130 or 178 may be made using a block of elastomeric material.
  • Dust plug 210 may be omitted.
  • the dust gate has a single movable jaw or, conversely, more than two movable jaws.
  • the ring 200 can also be implemented in locks other than electronic locks. Indeed, what has been taught here in the particular case of an electronic lock can also be implemented in a mechanical lock without electronics.
  • the ring 200 can be implemented independently of the presence of a flap 160 and the spring 178 in the key 16. Similarly, the ring 200 can be implemented independently of the presence of the spring 130 in the lock 6. Similarly, the ring 200 may be implemented with a groove 146 whose width does not allow the movement of the key 16 from its depressed position to its retracted position as soon as the user removes his hand from this key. For example, in this last variant, the groove 146 is sufficiently narrow to hold the key 16 in its depressed position, even if the user withdraws his hand from the key.
  • the protective flap it is not necessary for the protective flap to move from its advanced position to its retracted position by a translational movement.
  • the translation movement is replaced by a rotational movement combined or not with a translational movement about an axis integral with the key.
  • the flap pivots about an axis perpendicular to the insertion axis of the key.
  • the flap pivots about the insertion axis of the key.
  • the flap can also move between its advanced position and its retracted position along a helical path whose axis of revolution is coincident with the insertion axis of the key.
  • the displacement between the retracted position and the advanced position is not necessarily a translation
  • the displacement is preferably mechanically actuated by the insertion of the key inside the lock.
  • the movement is actuated by the cooperation of a stop provided for this purpose on the flap with a corresponding stop provided on the lock 6.
  • the flap 160 may be implemented independently of the ring 200.
  • the flap 160 may be implemented on a key without groove 146 and ring 200.
  • the flap 160 may also be implemented without the throat 146 is large enough to allow the automatic cut of the electrical connections between the key and the lock as soon as the user removes his hand from the key.
  • the spring 178 It is also not necessary for the spring 178 to be sized to be able to move the key 16 from its depressed position to its retracted position as soon as the user removes his hand from the key.
  • the shutter 160 can also be implemented without the presence of the spring 130.
  • the spring 130 is omitted and the spring 178 is dimensioned to be able alone to move the key 16 from its depressed position to its retracted position as soon as the user removes the hand from this key.
  • neither the spring 130 nor the spring 178 is capable alone to move the key 16 from its depressed position to its retracted position.
  • the group of springs comprising the spring 130 and the spring 178, is capable, on its own, of moving the key 16 from its depressed position to its retracted position as soon as the user removes the hand from this key.
  • Each of the springs 130, 178 can be replaced by a group of several springs situated, respectively, inside the lock 6 and in the key 16.
  • the mechanism for automatically cutting the electrical connections between the key 16 and the lock 6 described above can be implemented independently of the flap 160.
  • the spring 178 can be omitted.
  • the spring 130 is then dimensioned to be able alone to move the key 16 from its depressed position to its retracted position as soon as the user removes the hand of the key.
  • the tip 162 is replaced by a simple ring that does not completely or completely cover the electrical terminals 44 to 46 in the advanced position.
  • This ring has an annular distal end and the stop of the key corresponds to this annular distal end.
  • the automatic breaking mechanism of the electrical connections can also be implemented independently of the ring 200.
  • the springs 130 and 178 are sized so that the key 16 is not completely ejected from the channel 50 as soon as the user removes his hand from this key.
  • the ring 200 can be omitted, for example, in the case of locks where it is not necessary to turn the key to unlock. A simple depression of the key blade inside the lock is then sufficient to unlock it.
  • the width of the housing 146 can be reduced to receive the front portion of the pin only in the retracted position and not in the depressed position.
  • the housing arranged in the blade 38 for receiving the front parts of the pins in their retaining position are possible.
  • this housing does not necessarily make the complete turn of the blade 38.
  • the groove 146 is replaced by three separate housings made on the periphery of the blade 38 and located in the same transverse plane. Each of these housings is vis-à-vis the front end of a respective conduit 240 to 242 when the key is in its depressed position. Each of these housings receives the leading end of a respective pin 244 to 246 when the key is in its depressed position.
  • these dwellings are not necessarily connected to each other so as to form a continuous dwelling.
  • the battery 41 can be housed inside the lock 6. In this case, it is the lock that supplies the key 16 when the latter is in its depressed position.
  • the number of electrical connections between the key and the lock can be one or two or be greater than three or four.
  • the contacts 100 to 102 are possible.
  • the sleeve 51 is omitted.
  • the mechanical architecture of the electronic lock may be different from that described here.
  • the electronic lock may comprise a single half-stator.
  • the inner half-stator can be replaced by a locking latch and, alternately, manual unlocking of the electronic lock.
  • the ring allows removal and insertion of the key only in one or more predetermined withdrawal positions where all the pins are opposite a corresponding respective notch.
  • the minimum angular travel of the key between two of its withdrawal positions is also imposed and known in advance.
  • the pins are in their retracted position and their rear portions received within respective notches, this prevents the rotation of the blade during the insertion of the key. Thanks to this, the electrical contacts 44 to 46 of the key are correctly positioned inside the channel 50 to come into mechanical support on the electrical contacts 100 to 102 of the lock.
  • the ring 200 also makes the lock more robust against piercing attacks by using a drill whose diameter is smaller than that of the channel 50. In fact, in this case, if the diameter of the drill is wider. than that of the orifice 36, then the attempt to pierce the lock only results in the fact that this rotates the ring 200.
  • the presence of the spring 130 which automatically pushes the blade 38 outwards automatically cuts the electrical connections between the key and the electronic lock when a user forgets his key inside the lock. This avoids unnecessarily supplying the lock or key.
  • the front portions of the pins remain housed inside the groove 146 in the absence of the user. Therefore, even when the electrical connection between the key and the electric lock is interrupted, the key 16 is kept inside the lock. As a result, higher stiffness springs can be used to push the key from its depressed position to its retracted position without dropping the floor key. This facilitates the realization of the lock.
  • the shutter 160 prevents the electrical terminals 44 to 46 from being damaged when the key clashes with other keys of the same key ring or with objects located in the same pocket of the user.
  • this flap 160 prevents the terminals 44 to 46 are short-circuited with each other by a metal object attached to the same key-ring or present on the same storage location as the keys. This prevents the battery 41 from being discharged unnecessarily and prolongs its service life.

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  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Lock And Its Accessories (AREA)

Description

L'invention concerne un ensemble comportant une serrure électronique et une clef électronique.The invention relates to an assembly comprising an electronic lock and an electronic key.

Des ensembles connus comportent :

  • une serrure électronique, cette serrure électronique comportant un stator dans lequel est aménagé un canal rectiligne qui s'étend le long d'un axe d'introduction de la clef,
  • un contact électrique situé dans une paroi du canal rectiligne,
  • une clef électronique comportant une lame rectiligne apte à être introduite à l'intérieur du canal,
  • une borne électrique située sur la lame de la clef apte, lorsque la clef est dans une position enfoncée à l'intérieur de la serrure électronique, à venir directement en appui mécanique sur le contact électrique situé dans la paroi du canal.
Known assemblies include:
  • an electronic lock, this electronic lock comprising a stator in which is arranged a rectilinear channel which extends along an insertion axis of the key,
  • an electrical contact located in a wall of the rectilinear canal,
  • an electronic key comprising a rectilinear blade adapted to be introduced inside the channel,
  • an electrical terminal located on the blade of the suitable key, when the key is in a depressed position inside the electronic lock, to come directly in mechanical support on the electrical contact located in the wall of the channel.

Par exemple, une telle serrure et une telle clef sont divulguées dans leur principe général dans la demande FR3025236 . Dès modes de réalisation plus détaillés sont décrits dans la demande déposée sous le n° FR1756907 le 21 juillet 2017 par la société COGELEC.For example, such a lock and such a key are disclosed in their general principle in the application FR3025236 . As more detailed embodiments are described in the application filed under No. FR1756907 on July 21, 2017 by COGELEC.

L'invention vise à améliorer un tel ensemble. En particulier, l'invention vise à atteindre au moins l'un des objectifs suivants :

  • empêcher le retrait de la clef en dehors d'une ou plusieurs positions angulaires prédéterminées, et
  • allonger la durée de vie de la batterie de la clef électronique ou de la serrure électronique.
The invention aims to improve such an assembly. In particular, the invention aims to achieve at least one of the following objectives:
  • prevent the removal of the key from outside one or more predetermined angular positions, and
  • extend the battery life of the electronic key or the electronic lock.

De l'état de la technique est également connu de :

  • EP3220362A1 ,
  • GB219340A ,
  • GB2172928A ,
  • US6041628A .
  • US1974953A ,
  • US3217114A ,
  • US3430469A .
From the state of the art is also known from:
  • EP3220362A1 ,
  • GB219340A ,
  • GB2172928A ,
  • US6041628A .
  • US1974953A ,
  • US3217114A ,
  • US3430469A .

Elle a donc pour objet un tel ensemble conforme à la revendication 1.It therefore relates to such an assembly according to claim 1.

Les modes de réalisation de cet ensemble peuvent comporter une ou plusieurs des caractéristiques des revendications dépendantes.Embodiments of this set may include one or more of the features of the dependent claims.

L'invention sera mieux comprise à la lecture de la description qui va suivre, donnée uniquement à titre d'exemple non limitatif et faite en se référant aux dessins sur lesquels :

  • la figure 1 est une illustration schématique d'une porte équipée d'une serrure électronique ;
  • la figure 2 est une illustration schématique en perspective d'un cylindre de la serrure de la figure 1 ;
  • la figure 3 est une illustration schématique en coupe verticale et longitudinale du cylindre de la figure 2 ;
  • la figure 4 est une illustration schématique partielle, en vue de dessus, d'un demi-cylindre de la serrure de la figure 2 avec une clef dans une position enfoncée;
  • la figure 5 est une illustration schématique, en perspective et en vue éclaté, de la clef de la figure 4 ;
  • les figures 6 et 7 sont des illustrations schématiques, en vue de côté, de la clef de la figure 5 dans deux états différents ;
  • la figure 8 est une illustration schématique, en perspective et en vue éclatée, d'une bague du demi-cylindre de la figure 2
  • les figures 9 et 10 sont des illustrations, en vue de face, d'un clapet anti-poussiere de la bague de la figure 8 dans des positions fermée et ouverte respectivement ;
  • la figure 11 est une illustration schématique, en coupe partielle et en perspective, d'un stator du cylindre de la figure 2 ;
  • la figure 12 est une illustration schématique, en vue de face, du stator de la figure 11 ;
  • les figures 13 et 14 sont des illustrations schématiques, en vue de côté, de la bague de la figure 8 dans deux positions différentes ;
  • les figures 15 et 16 sont des illustrations schématiques, en coupe transversale, du stator de la figure 11 et de la bague de la figure 8 dans deux positions différentes ;
  • la figure 17 est une illustration schématique d'un profil transversal d'une gorge de la clef de la figure 5 ;
  • la figure 18 est une illustration schématique partielle, en vue de dessus, d'un demi-cylindre de la serrure de la figure 2 avec une clef dans une position reculée;
The invention will be better understood on reading the description which follows, given solely by way of nonlimiting example and with reference to the drawings in which:
  • the figure 1 is a schematic illustration of a door equipped with an electronic lock;
  • the figure 2 is a schematic perspective illustration of a lock cylinder of the figure 1 ;
  • the figure 3 is a schematic illustration in vertical and longitudinal section of the cylinder of the figure 2 ;
  • the figure 4 is a partial schematic illustration, in top view, of a half cylinder of the lock of the figure 2 with a key in a depressed position;
  • the figure 5 is a schematic illustration, in perspective and exploded view, of the key to figure 4 ;
  • the Figures 6 and 7 are schematic illustrations, in side view, of the key to the figure 5 in two different states;
  • the figure 8 is a schematic illustration, in perspective and exploded view, of a ring of the half-cylinder of the figure 2
  • the Figures 9 and 10 are illustrations, in front view, of a check valve of the ring of the figure 8 in closed and open positions respectively;
  • the figure 11 is a schematic illustration, partly in section and in perspective, of a stator of the cylinder of the figure 2 ;
  • the figure 12 is a schematic illustration, in front view, of the stator of the figure 11 ;
  • the Figures 13 and 14 are schematic illustrations, in side view, of the ring of the figure 8 in two different positions;
  • the Figures 15 and 16 are schematic illustrations, in cross-section, of the stator of the figure 11 and the ring of the figure 8 in two different positions;
  • the figure 17 is a schematic illustration of a transverse profile of a throat of the key of the figure 5 ;
  • the figure 18 is a partial schematic illustration, in top view, of a half cylinder of the lock of the figure 2 with a key in a remote position;

Dans ces figures, les mêmes références numériques sont utilisées pour désigner les mêmes éléments. Dans la suite de cette description, les caractéristiques et fonctions bien connues de l'homme du métier ne sont pas décrites en détail.In these figures, the same reference numerals are used to designate the same elements. In the remainder of this description, the features and functions well known to those skilled in the art are not described in detail.

Chapitre I : Contexte généralChapter I: General context

La figure 1 représente une porte 2. Cette porte 2 présente un côté intérieur, typiquement situé à l'intérieur d'une pièce, et un côté extérieur du côté opposé. Par la suite, les termes « intérieur » et « extérieur » font référence, respectivement, au côté intérieur et extérieur de la porte 2. La porte 2 s'étend ici dans un plan vertical. Par la suite, la direction verticale est désignée par la direction Z d'un repère orthogonal XYZ. La direction X est perpendiculaire au plan vertical dans lequel s'étend principalement la porte 2. L'ensemble des figures sont orientées par rapport à ce repère XYZ.The figure 1 is a door 2. This door 2 has an inner side, typically located within a room, and an outer side of the opposite side. Subsequently, the terms "inner" and "outer" refer, respectively, to the inner and outer side of the door 2. The door 2 here extends in a vertical plane. Thereafter, the vertical direction is indicated by the direction Z of an orthogonal reference XYZ. The direction X is perpendicular to the vertical plane in which the door 2 extends mainly. All the figures are oriented relative to this XYZ mark.

La porte 2 est équipée d'une poignée 4 et d'une serrure électronique 6. Pour simplifier la figure 1, seule une partie de la porte 2 est représentée.The door 2 is equipped with a handle 4 and an electronic lock 6. To simplify the figure 1 only part of the door 2 is shown.

L'architecture mécanique générale de la serrure 6 est, par exemple, identique à celle décrite dans la demande FR3025236 . Pour cette raison, seuls les détails nécessaires à la compréhension de l'invention sont donnés ici. Pour les autres détails, le lecteur est renvoyé à la demande FR3025236 .The general mechanical architecture of the lock 6 is, for example, identical to that described in the application FR3025236 . For this reason, only the details necessary to understand the invention are given here. For other details, the reader is returned on request FR3025236 .

La serrure 6 comporte un pêne 10 déplaçable en translation, parallèlement à la direction Y, en alternance et de façon réversible, entre une position verrouillée et une position déverrouillée. Dans la position verrouillée, le pêne 10 fait saillie au-delà de la tranche de la porte 2 pour s'engager dans une gâche fixée sans aucun degré de liberté sur le dormant de la porte 2. Dans la position verrouillée, le pêne 10 verrouille la porte 2 dans sa position fermée. Dans la position déverrouillée, le pêne 10 est rentré à l'intérieur de la porte 2 et ne fait plus saillie au-delà de la tranche de cette porte 2. Dans la position déverrouillée, la porte 2 peut être déplacée par un utilisateur d'une position fermée vers une position ouverte en actionnant la poignée 4.The lock 6 comprises a bolt 10 movable in translation, parallel to the Y direction, alternately and reversibly, between a locked position and an unlocked position. In the locked position, the bolt 10 protrudes beyond the edge of the door 2 to engage in a strike fixed without any degree of freedom on the frame of the door 2. In the locked position, the bolt 10 locks the door 2 in its closed position. In the unlocked position, the bolt 10 is returned inside the door 2 and no longer protrudes beyond the edge of this door 2. In the unlocked position, the door 2 can be moved by a user of a closed position to an open position by actuating the handle 4.

La serrure 6 comporte aussi un cylindre 12 et une vis 14 de fixation du cylindre 12 dans la porte 2. Le cylindre 12 déplace le pêne 10 de sa position verrouillée vers sa position déverrouillée lorsqu'une clef 16 (figure 2), autorisée à déverrouiller la serrure 6, est introduite, puis tournée à l'intérieur de ce cylindre. Le cylindre 12 déplace aussi le pêne 10 de sa position déverrouillée vers sa position verrouillée lorsque la clef autorisée est introduite puis tournée en sens inverse à l'intérieur de ce cylindre. À l'inverse, lorsqu'une clef non-autorisée est introduite à l'intérieur du cylindre 12, ce cylindre empêche le déplacement du pêne 10 de sa position verrouillée vers sa position déverrouillée.The lock 6 also comprises a cylinder 12 and a screw 14 for fixing the cylinder 12 in the door 2. The cylinder 12 moves the bolt 10 from its locked position to its unlocked position when a key 16 ( figure 2 ), allowed to unlock the lock 6, is introduced and then turned inside this cylinder. The cylinder 12 also moves the bolt 10 from its unlocked position to its locked position when the authorized key is inserted and turned in the opposite direction inside this cylinder. Conversely, when an unauthorized key is introduced inside the cylinder 12, the cylinder prevents the displacement of the bolt 10 from its locked position to its unlocked position.

Ici, la clef 16 peut être introduite à l'intérieur du cylindre 12 depuis le côté extérieur et, en alternance, depuis le côté intérieur de la porte 2. À cet effet, le cylindre 12 débouche de chaque côté de la porte 2.Here, the key 16 can be introduced inside the cylinder 12 from the outside and, alternately, from the inside of the door 2. For this purpose, the cylinder 12 opens on each side of the door 2.

La vis 14 comporte une tête qui affleure sur la tranche de la porte 2. L'extrémité taraudée de la vis 14 est vissée dans le cylindre 12 pour le retenir en place à l'intérieur de la porte 2.The screw 14 has a head that is flush with the edge of the door 2. The threaded end of the screw 14 is screwed into the cylinder 12 to hold it in place inside the door 2.

La figure 2 représente plus en détail le cylindre 12. Ici, le cylindre 12 est conforme au format européen. Le cylindre 12 s'étend le long d'un axe 20 d'introduction de la clef. L'axe 20 est ici parallèle à la direction X. Le cylindre 12 comporte un stator 22 fixé sans aucun degré de liberté à la porte 2 par l'intermédiaire de la vis 14 et un panneton 24 logé à l'intérieur d'une encoche transversale 26.The figure 2 represents in more detail the cylinder 12. Here, the cylinder 12 is in accordance with the European format. The cylinder 12 extends along an axis 20 for introducing the key. The axis 20 is here parallel to the direction X. The cylinder 12 comprises a stator 22 fixed without any degree of freedom to the door 2 by means of the screw 14 and a bit 24 housed inside a notch transverse 26.

L'encoche 26 s'étend dans un plan transversal 28 parallèle aux directions Y, Z. Ici, seule une partie du plan 28 est représentée sur la figure 2. Le plan 28 est un plan de symétrie pour le panneton 24.The notch 26 extends in a transverse plane 28 parallel to the directions Y, Z. Here, only part of the plane 28 is represented on the figure 2 . The plane 28 is a plane of symmetry for the bit 24.

Le panneton 24 tourne dans le sens trigonométrique autour de l'axe 20 pour déplacer le pêne 10 de sa position verrouillée vers sa position déverrouillée et dans le sens inverse pour déplacer le pêne 10 de sa position déverrouillée vers sa position verrouillée.The bit 24 rotates counterclockwise about the axis 20 to move the bolt 10 from its locked position to its unlocked position and in the opposite direction to move the bolt 10 from its unlocked position to its locked position.

Le plan 28 divise également le stator 22 en deux parties. La partie du stator 22 située du côté intérieur de la porte 2 est appelée « demi-stator intérieur » et porte la référence 30. La partie du stator 22 située du côté extérieur de la porte 2 est appelée « demi-stator extérieur» et porte la référence 32. Dans ce mode de réalisation particulier, les demi-stators 30 et 32 sont quasiment les symétriques l'un de l'autre par rapport au plan 28. Ainsi, seul le demi-stator 32 est décrit plus en détail par la suite.The plane 28 also divides the stator 22 into two parts. The part of the stator 22 located on the inside of the door 2 is called "inner half-stator" and has the reference 30. The portion of the stator 22 located on the outside of the door 2 is called "outer half-stator" and door 32. In this embodiment in particular, the half-stators 30 and 32 are almost symmetrical to one another with respect to the plane 28. Thus, only the half-stator 32 is described in more detail below.

Le demi-stator 32 comporte un cache avant 34 parallèle au plan 28 et directement exposé à l'extérieur de la porte 2. Ce cache avant empêche d'avoir un accès direct aux pièces mobiles situées à l'intérieur du cylindre 12 de manière à les protéger contre des tentatives d'effraction. Ce cache 34 est traversé par un orifice 36 destiné à recevoir une lame 38 de la clef 16. L'orifice 36 est centré sur l'axe 20. L'orifice 36 est conformé de manière à permettre l'introduction de la lame 38 à l'intérieur du cylindre 12 par un mouvement de translation le long de l'axe 20. L'orifice 36 est aménagé à l'intérieur d'une bague 200 montée libre en rotation autour de l'axe 20. L'orifice 36 est aussi conformé pour entraîner en rotation, par coopération de forme avec la lame 38, la bague 200 autour de l'axe 20 lorsque la clef 16 introduite à l'intérieur du cylindre 12 est tournée sur elle-même autour de l'axe 20.The half-stator 32 comprises a front cover 34 parallel to the plane 28 and directly exposed to the outside of the door 2. This front cover prevents direct access to the moving parts located inside the cylinder 12 so as to protect them from burglary attempts. This cover 34 is traversed by an orifice 36 intended to receive a blade 38 of the key 16. The orifice 36 is centered on the axis 20. The orifice 36 is shaped so as to allow the introduction of the blade 38 to the inside of the cylinder 12 by a translation movement along the axis 20. The orifice 36 is arranged inside a ring 200 mounted free to rotate about the axis 20. The orifice 36 is also shaped to drive in rotation, by shape cooperation with the blade 38, the ring 200 about the axis 20 when the key 16 inserted inside the cylinder 12 is turned on itself about the axis 20.

La clef 16 comporte un corps 39 à partir duquel s'étend la lame 38. Ce corps 39 forme un moyen de préhension qui permet à l'utilisateur d'introduire puis de tourner la clef 16 à l'intérieur de la serrure 6.The key 16 comprises a body 39 from which the blade 38 extends. This body 39 forms a gripping means which allows the user to insert and then turn the key 16 inside the lock 6.

Ici, la clef 16 est une clef électronique apte à transmettre un code d'accès au cylindre 12 pour que celui-ci, en réponse :

  • autorise le déverrouillage de la serrure 6 si le code d'accès reçu est celui d'une clef autorisée à ouvrir la porte 2, et en alternance
  • interdise le déverrouillage de la serrure 6 si le code d'accès reçu est celui d'une clef non-autorisée.
Here, the key 16 is an electronic key capable of transmitting an access code to the cylinder 12 so that it, in response:
  • authorizes the unlocking of the lock 6 if the access code received is that of a key authorized to open the door 2, and alternately
  • prohibits the unlocking of the lock 6 if the access code received is that of an unauthorized key.

À cet effet, la clef 16 comporte notamment un émetteur 40 et une batterie 41 logés à l'intérieur du corps 39.For this purpose, the key 16 comprises in particular a transmitter 40 and a battery 41 housed inside the body 39.

Ici, la lame 38 est dépourvue de motif en relief destiné à déplacer des goupilles de la serrure pour provoquer un déverrouillage mécanique de la serrure 6. Par contre, la lame 38 comporte au moins un motif apte à coopérer avec un motif de forme complémentaire sur un rotor du cylindre 12 pour entraîner ce rotor en rotation lorsque la clef tourne. Ici, ce motif sur la lame 38 est un méplat 42 situé sur son extrémité distale.Here, the blade 38 is devoid of raised pattern for moving pins of the lock to cause mechanical unlocking of the lock 6. On the other hand, the blade 38 has at least one pattern adapted to cooperate with a pattern of complementary shape on a rotor of the cylinder 12 for driving the rotor in rotation when the key rotates. Here, this pattern on the blade 38 is a flat 42 located on its distal end.

L'émetteur 40 est notamment apte à transmettre, par l'intermédiaire d'une liaison filaire, un code d'accès à la serrure 6. La batterie 41 est aussi utilisée pour alimenter la serrure 6 par l'intermédiaire d'une liaison filaire. Ces liaisons filaires sont établies uniquement lorsque la clef 16 est dans une position enfoncée à l'intérieur de la serrure 6. A cet effet, la lame 38 comporte des bornes électriques aptes à coopérer avec des contacts électriques correspondant de la serrure 6 pour établir ces liaisons électriques filaires entre la clef 16 et la serrure 6. A titre d'illustration, la lame 38 comporte six bornes électriques disposées de façon symétrique de part et d'autre de l'axe de la lame 38. Par exemple, les bornes symétriques l'une de l'autre font partie d'une même bague conductrice. Sur les figures, seules les bornes 44 à 46 situées du même côté de la lame 38 sont visibles.The transmitter 40 is particularly adapted to transmit, via a wired link, an access code to the lock 6. The battery 41 is also used to supply the lock 6 via a wired link . These wired links are established only when the key 16 is in a depressed position inside the lock 6. For this purpose, the blade 38 has electrical terminals adapted to cooperate with corresponding electrical contacts of the lock 6 to establish these wired electrical connections between the key 16 and the lock 6. By way of illustration, the blade 38 comprises six electrical terminals arranged symmetrically on either side of the axis of the blade 38. For example, the symmetrical terminals each other are part of the same conductive ring. In the figures, only the terminals 44 to 46 located on the same side of the blade 38 are visible.

La figure 3 représente plus en détail l'intérieur du cylindre 12. Le stator 22 comporte un canal 50, de section transversale circulaire, traversant de part en part le stator 22 et donc les deux demi-stators 30 et 32. Ce canal 50 s'étend le long de l'axe 20. Ici, l'axe 20 est confondu avec l'axe de symétrie de révolution du canal 50. Ici, dans une portion comportant des contacts électriques 100 à 102, le canal 50 comporte une portion réalisée dans un autre matériau comme par exemple de la céramique. Dans ce mode de réalisation, cette portion du canal 50 est réalisée à l'aide d'un fourreau 51 (figures 4 et 18) à l'intérieur duquel sont logés ces contacts électriques. Ce fourreau 51 n'est pas représenté sur les figures 3 et 11.The figure 3 represents more in detail the inside of the cylinder 12. The stator 22 comprises a channel 50, of circular cross section, passing right through the stator 22 and thus the two half-stators 30 and 32. This channel 50 extends the along the axis 20. Here, the axis 20 is coincident with the axis of symmetry of revolution of the channel 50. Here, in a portion having electrical contacts 100 to 102, the channel 50 comprises a portion made in another material such as ceramics. In this embodiment, this portion of the channel 50 is made using a sheath 51 ( figures 4 and 18 ) inside which these electrical contacts are housed. This sheath 51 is not represented on the figures 3 and 11 .

Le canal 50 reçoit un rotor 52. Le rotor 52 est par exemple identique à celui décrit en détail, notamment, en référence aux figures 5 et 6 de la demande FR3025236 . En particulier, le rotor 52 comporte un logement 96 apte à recevoir l'extrémité de la lame 38. La section transversale de ce logement 96 comporte au moins une forme complémentaire de l'extrémité distale de la lame 38 de manière à être engrenée en rotation par la lame 38. Ici, cette forme complémentaire est un méplat apte à s'engrener avec le méplat 42 de la lame 38. Ainsi, lorsqu'une clef autorisée est tournée à l'intérieur de la serrure 6, la rotation de la clef 16 entraîne la rotation du rotor 52 qui elle-même entraîne la rotation du panneton 24.The channel 50 receives a rotor 52. The rotor 52 is for example identical to that described in detail, particularly with reference to Figures 5 and 6 demand FR3025236 . In particular, the rotor 52 has a housing 96 adapted to receive the end of the blade 38. The cross section of this housing 96 comprises at least one shape complementary to the distal end of the blade 38 so as to be rotated by the blade 38. Here, this complementary shape is a flat part capable of meshing with the flat part 42 of the blade 38. Thus, when an authorized key is turned inside the lock 6, the rotation of the key 16 causes the rotation of the rotor 52 which itself causes the rotation of the bit 24.

La bague 200 est montée à l'intérieur du canal 50. La bague 200 est située au niveau de l'entrée du canal 50, c'est-à-dire au niveau de l'extrémité du canal 50 qui débouche dans le cache 34. De plus, ici, la face avant de la bague 200 affleure le cache 34.The ring 200 is mounted inside the channel 50. The ring 200 is located at the inlet of the channel 50, that is to say at the end of the channel 50 which opens into the cache 34 In addition, here, the front face of the ring 200 is flush with the cover 34.

Le demi-stator 32 comporte une coquille 54 entièrement située du côté extérieur du plan 28 et une moitié d'une barrette 56 située du côté extérieur de ce plan 28. La barrette 56 est par exemple symétrique par rapport au plan 28.The half-stator 32 comprises a shell 54 entirely located on the outside of the plane 28 and a half of a bar 56 located on the outer side of this plane 28. The bar 56 is for example symmetrical with respect to the plane 28.

La coquille 54 comprend le cache avant 34, la bague 200 et la moitié du canal 50 situé du côté extérieur. De préférence, la coquille 54 est formée d'un seul bloc de matière rigide. Par « matière rigide » ou « matériau rigide », on désigne une matière dont le module de Young à 25°C est supérieur à 100 GPa ou 150 GPa et, de préférence, supérieur à 200 GPa.The shell 54 includes the front cover 34, the ring 200 and the half of the channel 50 located on the outside. Preferably, the shell 54 is formed of a single block of rigid material. By "rigid material" or "rigid material" is meant a material whose Young's modulus at 25 ° C. is greater than 100 GPa or 150 GPa and, preferably, greater than 200 GPa.

Le demi-stator 32 comporte un mécanisme commandable 76 de déverrouillage de la serrure. Ce mécanisme 76 est apte à déplacer un organe 80 de blocage de la rotation du rotor 52. Ce mécanisme 76 est fixé, sans degré de liberté, sur la coquille 54. Par exemple, le mécanisme 76 et l'organe 80 sont similaires ou identiques à ceux décrits dans la demande FR3025236 . Pour accroître la lisibilité de la figure 3, les représentations du mécanisme 76 et de l'organe 80 ont été simplifiées.The half-stator 32 comprises a controllable mechanism 76 for unlocking the lock. This mechanism 76 is able to move a member 80 for blocking the rotation of the rotor 52. This mechanism 76 is fixed, without degree of freedom, on the shell 54. For example, the mechanism 76 and the member 80 are similar or identical. to those described in the application FR3025236 . To increase the readability of the figure 3 the representations of mechanism 76 and organ 80 have been simplified.

L'organe 80 se déplace en translation entre une position de blocage (représentée sur la figure 3) et une position escamotée. Dans la position de blocage, une extrémité distale de l'organe 80 est reçue à l'intérieur d'une anfractuosité ménagée dans le rotor 52 pour empêcher la rotation de ce rotor autour de l'axe 20. Dans la position escamotée, l'extrémité distale de l'organe 80 est située en dehors de l'anfractuosité, de sorte que le rotor 52 peut être entraîné en rotation par la clef 16 autour de l'axe 20. Par exemple, l'organe 80 se déplace uniquement en translation entre sa position de blocage et sa position escamotée. Ici, ce déplacement en translation est parallèle à la direction Z.The member 80 moves in translation between a locking position (represented on the figure 3 ) and a retracted position. In the locking position, a distal end of the member 80 is received inside an anfractuosity formed in the rotor 52 to prevent the rotation of this rotor about the axis 20. In the retracted position, the distal end of the member 80 is located outside the anfractuosity, so that the rotor 52 can be rotated by the key 16 around the axis 20. For example, the member 80 moves only in translation between its locking position and its retracted position. Here, this displacement in translation is parallel to the direction Z.

Le mécanisme 76 comporte typiquement un actionneur électrique et/ou magnétique commandable 82 et une unité électronique 84 de commande de cet actionneur 82. L'actionneur 82 est apte à déplacer l'organe 80 entre sa position de blocage et sa position escamotée en réponse à une commande transmise par l'unité 84. En absence de commande, l'actionneur 82 maintient l'organe 80 dans sa position de blocage.The mechanism 76 typically comprises a controllable electric and / or magnetic actuator 82 and an electronic control unit 84 for this actuator 82. The actuator 82 is able to move the member 80 between its blocking position and its retracted position in response to a command transmitted by the unit 84. In the absence of control, the actuator 82 keeps the member 80 in its locking position.

L'unité 84 est apte :

  • à recevoir un code d'accès contenu dans une clef introduite dans le cylindre 12 aussi bien à partir du côté intérieur que du côté extérieur de ce cylindre 12, puis
  • en fonction du code d'accès reçu, à transmettre à l'actionneur 82 une commande de déverrouillage qui déclenche le déplacement de l'organe 80 vers sa position escamotée et, en alternance, à inhiber cette commande pour maintenir l'organe 80 dans sa position de blocage.
Unit 84 is able to:
  • to receive an access code contained in a key introduced into the cylinder 12 both from the inner side and the outer side of this cylinder 12, then
  • according to the access code received, to transmit to the actuator 82 an unlocking command which triggers the movement of the member 80 to its retracted position and, alternately, to inhibit this command to maintain the member 80 in its blocking position.

Pour autoriser ou, au contraire, inhiber la transmission de la commande de déverrouillage, l'unité 84 compare le code d'accès reçu à des codes d'accès préenregistrés. Si le code d'accès reçu correspond à l'un des codes d'accès préenregistrés, alors l'unité 84 transmet la commande de déverrouillage. Dans le cas contraire, l'unité 84 ne transmet pas cette commande de déverrouillage.To allow or, conversely, inhibit the transmission of the unlock command, the unit 84 compares the access code received with prerecorded access codes. If the access code received corresponds to one of the prerecorded access codes, then the unit 84 transmits the unlock command. Otherwise, the unit 84 does not transmit this unlock command.

Ici, l'unité 84 communique avec l'émetteur 40 par l'intermédiaire d'une liaison filaire 106 qui s'établit lorsque la clef 16 est dans sa position enfoncée à l'intérieur de la serrure 6. En même temps, la batterie 41 transmet l'énergie nécessaire à l'alimentation du mécanisme 76 par l'intermédiaire de deux liaisons filaires 107 et 108. La liaison 106 s'établit par l'intermédiaire de la borne 44 et d'un contact électrique 100 du demi-stator 32. Les liaisons 107 et 108 s'établissent par l'intermédiaire des bornes 45, 46 et de deux contacts électriques 101 et 102 du demi-stator 32.Here, the unit 84 communicates with the transmitter 40 via a wire link 106 which is established when the key 16 is in its depressed position inside the lock 6. At the same time, the battery 41 transmits the energy required to supply the mechanism 76 via two wired links 107 and 108. The link 106 is established via the terminal 44 and an electrical contact 100 of the half-stator 32. The links 107 and 108 are established via the terminals 45, 46 and two electrical contacts 101 and 102 of the half-stator 32.

Dans le mode de réalisation représenté ici, la clef 16 et le demi-stator 32 comportent aussi, respectivement, trois bornes électriques et trois contacts électriques supplémentaires. Ces bornes et contacts électriques supplémentaires sont utilisés pour établir simultanément trois liaisons filaires supplémentaires redondantes avec les liaisons filaires 106 à 108. Ces liaisons filaires supplémentaires se déduisent des liaisons filaires 106 à 108 par symétries par rapport au plan vertical contenant l'axe 20. Par conséquent, elles ne sont pas décrites plus en détail par la suite.In the embodiment shown here, the key 16 and the half-stator 32 also comprise, respectively, three electrical terminals and three additional electrical contacts. These terminals and additional electrical contacts are used to simultaneously establish three additional redundant wired links with the wired links 106 to 108. These additional wired links are derived from the wired links 106 to 108 by symmetries with respect to the vertical plane containing the axis 20. By therefore, they are not described in more detail later.

Les contacts électriques 100 à 102 sont réalisés, par exemple, comme ceux décrits en détails dans la demande de brevet déposée sous le numéro FR1756907 le 21 juillet 2017 par la société COGELEC.The electrical contacts 100 to 102 are made, for example, as those described in detail in the patent application filed under the number FR1756907 on July 21, 2017 by COGELEC.

Chapitre II : Description détaillée d'un mode de réalisationChapter II: Detailed Description of an Embodiment

La figure 4 représente, en coupe pratiquement horizontale, la clef 16 dans sa position enfoncée à l'intérieur de la serrure 6. En réalité, le plan de coupe est légèrement incliné de sorte que seuls les contacts 100 à 102 sont visibles sur cette figure. Sur cette figure, certains détails de la serrure 6 ont été omis pour la simplifier. Par exemple, le paneton 4 est omis.The figure 4 is in substantially horizontal section, the key 16 in its depressed position inside the lock 6. In reality, the cutting plane is slightly inclined so that only the contacts 100 to 102 are visible in this figure. In this figure, some details of the lock 6 have been omitted to simplify it. For example, paneton 4 is omitted.

Dans la position enfoncée, les contacts 100 à 102 sont directement en appui mécaniques sur les bornes électriques, respectivement, 44 à 46. Dans la position enfoncée, l'extrémité distale de la lame 38 bute sur un repoussoir 120 qui repousse la clef 16 vers une position reculée (représentée sur la figure 18). Dans la position reculée, les contacts électriques 100 à 102 ne sont plus directement en appui mécanique sur les bornes électriques, respectivement, 44 à 46. Ainsi, dans la position reculée, les liaisons électriques entre la clef 16 et la serrure 6 sont interrompues. Dès lors, la serrure 6 n'est plus alimentée par la clef 16. Ici, dans la position reculée, une plus grande partie de la lame 38 est située en dehors du canal 50 que dans la position enfoncée.In the depressed position, the contacts 100 to 102 are directly in mechanical support on the electrical terminals, respectively, 44 to 46. In the depressed position, the distal end of the blade 38 abuts on a push-button 120 which pushes the key 16 towards a retracted position (represented on the figure 18 ). In the retracted position, the electrical contacts 100 to 102 are no longer directly in mechanical support on the electrical terminals, respectively, 44 to 46. Thus, in the retracted position, the electrical connections between the key 16 and the lock 6 are interrupted. Therefore, the lock 6 is no longer powered by the key 16. Here, in the retracted position, a larger portion of the blade 38 is located outside the channel 50 in the depressed position.

Le repoussoir 120 présente une face avant plane 122 parallèle au plan YZ et tournée vers l'orifice 36. L'extrémité distale de la lame 38 vient directement en appui sur cette face 122. Du côté opposé, le repoussoir 120 comporte une tige 124 en matériau rigide qui s'étend vers l'intérieur le long de l'axe 20. La tige 124 comporte une portion cylindrique 126 de section circulaire qui présente un renflement circulaire 128.The spool 120 has a flat front face 122 parallel to the plane YZ and facing the orifice 36. The distal end of the blade 38 bears directly on this face 122. On the opposite side, the spool 120 comprises a rod 124 rigid material which extends inward along the axis 20. The rod 124 has a cylindrical portion 126 of circular section which has a circular bulge 128.

Le repoussoir 120 comporte également un ressort 130, par exemple un ressort hélicoïdal, qui entoure la partie cylindrique 126. Le ressort 130 est d'un côté en appui sur le renflement 128 et, du côté opposé, en appui sur un épaulement 132 du rotor 52. Dans la position enfoncée, le ressort 130 sollicite en permanence la clef 16 de sa position enfoncée vers sa position reculée. Plus précisément, dans la position enfoncée, l'énergie potentielle accumulée dans le ressort 130 est suffisante pour déplacer la clef 16 de sa position enfoncée jusqu'à sa position reculée dès que l'utilisateur retire sa main de la clef 16. La raideur du ressort 130 est donc choisie en fonction de la course de la clef 16 entre ses positions enfoncée et reculée et des différentes forces à vaincre pour ramener automatiquement la clef 16 de sa position enfoncée vers sa position reculée. Par exemple, la course 16 entre la position enfoncée et la position reculée est supérieure à 0,6 mm. Ici, cette course est égale à 0,95 mm. À titre d'exemple, la raideur du ressort 130 est de 1,55 N/mm.The spool 120 also comprises a spring 130, for example a helical spring, which surrounds the cylindrical portion 126. The spring 130 is on one side bearing on the bulge 128 and, on the opposite side, resting on a shoulder 132 of the rotor 52. In the depressed position, the spring 130 permanently urges the key 16 from its depressed position to its retracted position. More specifically, in the depressed position, the potential energy accumulated in the spring 130 is sufficient to move the key 16 from its depressed position to its retracted position as soon as the user removes his hand from the key 16. The stiffness of the The spring 130 is thus chosen as a function of the stroke of the key 16 between its recessed and retracted positions and the different forces to be overcome in order to automatically return the key 16 from its depressed position to its retracted position. For example, the stroke 16 between the depressed position and the retracted position is greater than 0.6 mm. Here, this race is equal to 0.95 mm. For example, the stiffness of the spring 130 is 1.55 N / mm.

Les figures 5 à 7 représentent en détail la clef 16. La clef 16 comporte un circuit électronique 140 logée à l'intérieur du corps 39. Ce circuit électronique 140 comporte notamment l'émetteur 40 et la batterie 41. Il est raccordé aux bornes 44 à 46 par l'intermédiaire de pistes conductrices aménagées dans la lame 38.The Figures 5 to 7 The key 16 comprises an electronic circuit 140 housed inside the body 39. This electronic circuit 140 includes in particular the transmitter 40 and the battery 41. It is connected to the terminals 44 to 46 by the intermediate conductive tracks arranged in the blade 38.

Pour recevoir le circuit 140 à l'intérieur du corps 39, ce corps 39 comporte une coque inférieure et une coque supérieure emboîtées l'une dans l'autre. Dans leurs positions emboîtées, ces coques délimitent un espace intérieur creux dans lequel est logé et fixé le circuit 140. Sur les figures 5 à 7, seule la coque inférieure 142 est représentée.To receive the circuit 140 inside the body 39, the body 39 has a lower shell and an upper shell nested one inside the other. In their nested positions, these shells delimit a hollow interior space in which is lodged and fixed circuit 140. On Figures 5 to 7 only the lower shell 142 is shown.

Les bornes 44 à 46 sont situées sur une portion 144 de la lame 38 destinée à être introduite à l'intérieur du canal 50. En partant de l'extrémité distale de la clef 16, la portion 144 comporte successivement : le méplat 42, les bornes 44 à 46, un logement et un tronçon 148.The terminals 44 to 46 are located on a portion 144 of the blade 38 intended to be introduced inside the channel 50. Starting from the distal end of the key 16, the portion 144 comprises successively: the flat part 42, the terminals 44 to 46, a dwelling and a section 148.

Dans ce mode de réalisation, le logement est une gorge transversale 146. Cette gorge 146 est décrite plus en détail plus loin.In this embodiment, the housing is a transverse groove 146. This groove 146 is described in more detail below.

Le tronçon 148 est un cylindre de section transversale non-circulaire. Plus précisément, sa section transversale est le complément de la section transversale de l'orifice 36. Ainsi, la rotation de la lame 38 entraîne en rotation la bague 200. Par exemple, le tronçon 148 comporte un méplat supérieur 150 et un méplat inférieur du côté opposé. Sur la figure 5, seul le méplat 150 est visible.The section 148 is a cylinder of non-circular cross section. More specifically, its cross section is the complement of the cross section of the orifice 36. Thus, the rotation of the blade 38 rotates the ring 200. For example, the section 148 comprises an upper flat 150 and a lower flat of the opposite side. On the figure 5 only the flat 150 is visible.

La clef 16 comporte aussi un volet de protection 160 déplaçable en translation le long de l'axe de la lame 38 entre une position avancée et une position rétractée. Les positions avancée et rétractée du volet 160 sont représentées, respectivement, sur les figures 6 et 7.The key 16 also comprises a protective flap 160 movable in translation along the axis of the blade 38 between an advanced position and a retracted position. The advanced and retracted positions of the flap 160 are represented, respectively, on the Figures 6 and 7 .

Dans la position avancée, le volet 160 recouvre entièrement les bornes 44 à 46. Dans cette position avancée, le volet 160 protège donc les bornes électriques des agressions extérieures. Le volet 160 permet ainsi d'éviter que les bornes 44 à 46 soient accidentellement court-circuitées entre elles lors du stockage de la clef 16. En particulier, le volet 160 évite que les bornes 44 à 46 soient accidentellement court-circuitées entre elles par un autre objet métallique telle qu'une autre clef attachée au même porte-clefs que la clef 16. Un tel court-circuit accidentel peut entraîner une consommation inutile d'électricité et contribue donc à réduire la durée de vie de la batterie 41.In the advanced position, the flap 160 completely covers the terminals 44 to 46. In this advanced position, the flap 160 thus protects the electrical terminals from external aggressions. The shutter 160 thus makes it possible to prevent the terminals 44 to 46 from being accidentally short-circuited between each other during the storage of the key 16. In particular, the shutter 160 prevents the terminals 44 to 46 from being accidentally short-circuited between them by another metal object such as another key attached to the same key-ring as the key 16. Such an accidental short-circuit may result in unnecessary power consumption and thus contributes to reducing the battery life 41.

À l'inverse, dans la position rétractée, les bornes 44 à 46 sont directement exposées à leur environnement extérieur, ce qui leur permet d'entrer directement en contact mécanique avec les contacts électriques 100 à 102. Dans la position rétractée, la gorge 146 et le tronçon 148 sont aussi directement accessibles depuis l'extérieur.Conversely, in the retracted position, the terminals 44 to 46 are directly exposed to their external environment, which allows them to enter directly into mechanical contact with the electrical contacts 100 to 102. In the retracted position, the groove 146 and the section 148 are also directly accessible from the outside.

Ici, le volet 160 est formé d'un embout 162, en matériau rigide, monté libre en translation le long de la lame 38. Cet embout 162 entoure complètement la lame 38. Sa section transversale est similaire à celle de la lame 38. Par exemple, il comporte un méplat supérieur 164 et un méplat inférieur. L'embout 162 comporte une butée 166 apte à déplacer, par coopération de forme avec une butée correspondante de la serrure 6, l'embout 162 de la position avancée vers la position rétractée lorsque la lame 38 est introduite à l'intérieur du canal 50. Ici, cette butée 166 correspond à l'extrémité distale annulaire de l'embout 162 tournée vers l'extrémité distale de la lame 38. Plus précisément, lorsque la lame 38 est introduite à l'intérieur du canal 50 par l'utilisateur, la butée 166 vient en appui directement sur le pourtour de l'orifice 36. Ensuite, au fur et à mesure que l'utilisateur introduit la lame 38 à l'intérieur du canal 50, le pourtour de l'orifice 36 coopère avec la butée 166 pour déplacer en même temps le volet 160 de sa position avancée vers sa position rétractée. C'est donc le pourtour de l'orifice 36 qui constitue ici la butée correspondante de la serrure 6.Here, the flap 160 is formed of a tip 162, rigid material, mounted free in translation along the blade 38. This tip 162 completely surrounds the blade 38. Its cross section is similar to that of the blade 38. By for example, it has an upper flat 164 and a lower flat. The endpiece 162 has a stopper 166 adapted to move, by shape cooperation with a corresponding stop of the lock 6, the tip 162 from the advanced position to the retracted position when the blade 38 is inserted inside the channel 50 Here, this stop 166 corresponds to the annular distal end of the tip 162 facing the distal end of the blade 38. More specifically, when the blade 38 is inserted inside the channel 50 by the user, the abutment 166 abuts directly on the periphery of the orifice 36. Then, as the user introduces the blade 38 inside the channel 50, the periphery of the orifice 36 cooperates with the stop 166 to move at the same time the flap 160 from its advanced position to its retracted position. It is therefore around the orifice 36 which here constitutes the corresponding abutment of the lock 6.

Du côté opposé à la butée 166, l'embout 162 comporte une extrémité proximale annulaire. Ici, cette extrémité proximale annulaire prend la forme d'une collerette 168 en saillie sur son pourtour.On the opposite side to the stop 166, the tip 162 has an annular proximal end. Here, this annular proximal end takes the form of a flange 168 projecting around its periphery.

La lame 38 comporte aussi une portion 170 qui reste à l'extérieur du canal 50 lorsque la clef est dans sa position enfoncée. La portion 170 est recouverte d'un capuchon rigide 172. Ce capuchon 172 est fixé sans aucun degré de liberté au corps 39. Ce capuchon 172 encercle complètement la portion 170 tout en ménageant autour de cette portion 170 un espace creux apte à recevoir entièrement l'embout 162 lorsque celui-ci est dans sa position rétractée et seulement partiellement lorsque l'embout 162 est dans sa position avancée. À cet effet, le capuchon 172 comporte une ouverture 174 à travers laquelle l'embout 162 coulisse entre ses positions rétractée et avancée. Dans la position avancée, la collerette 168 vient en appui sur le pourtour de l'ouverture 174, ce qui retient l'embout 162 autour de la lame 38.The blade 38 also has a portion 170 which remains outside the channel 50 when the key is in its depressed position. The portion 170 is covered with a rigid cap 172. This cap 172 is fixed without any degree of freedom to the body 39. This cap 172 completely surrounds the portion 170 while leaving around this portion 170 a hollow space able to fully accommodate the body. 162 when the latter is in its retracted position and only partially when the nozzle 162 is in its advanced position. For this purpose, the cap 172 has an opening 174 through which the tip 162 slides between its retracted and advanced positions. In the advanced position, the flange 168 bears on the periphery of the opening 174, which holds the tip 162 around the blade 38.

Enfin, la clef 16 comporte un ressort 178 apte à déplacer automatiquement le volet 160 de sa position rétractée vers sa position avancée dès que la butée 166 n'est plus en appui sur le pourtour de l'orifice 36. Le ressort 178 sollicite à cet effet en permanence l'embout 162 vers sa position avancée. Ici, le ressort 178 est un ressort hélicoïdal qui entoure la portion 170 de la lame 38. D'un côté, il est en appui sur la collerette 168 et, du côté opposé, il est en appui sur le corps 39. Par exemple, il est en appui sur la coque 142. Le ressort 178 est aussi logé à l'intérieur du capuchon 172 de sorte qu'il n'est pas accessible depuis l'extérieur de la clef 16.Finally, the key 16 comprises a spring 178 adapted to automatically move the flap 160 from its retracted position to its advanced position as soon as the stop 166 is no longer supported on the periphery of the orifice 36. effect permanently the nozzle 162 to its advanced position. Here, the spring 178 is a helical spring which surrounds the portion 170 of the blade 38. On one side, it bears on the flange 168 and, on the opposite side, it bears on the body 39. For example, it is resting on the hull 142. The spring 178 is also housed inside the cap 172 so that it is not accessible from outside the key 16.

Dans ce mode de réalisation, le ressort 178 n'est pas nécessairement dimensionné pour être capable à lui seul de déplacer la clef 16 de sa position enfoncée vers sa position reculée dès que l'utilisateur retire la main de cette clef. Par exemple, la raideur du ressort 178 est de 0,15 N/nm et sa course de compression est de 11,5 nm.In this embodiment, the spring 178 is not necessarily sized to be able alone to move the key 16 from its depressed position to its retracted position as soon as the user removes the hand from this key. For example, the stiffness of the spring 178 is 0.15 N / nm and its compression stroke is 11.5 nm.

La figure 8 représente plus en détail la bague 200. La bague 200 remplit plusieurs fonctions dont notamment les fonctions suivantes :

  • servir de support pour un clapet anti-poussière, et
  • autoriser l'insertion et le retrait de la clef 16 uniquement dans certaines positions angulaires prédéterminées appelées « positions de retrait ».
The figure 8 represents in more detail the ring 200. The ring 200 fulfills several functions including the following functions:
  • serve as a support for a dust gate, and
  • allow the insertion and removal of the key 16 only in certain predetermined angular positions called "withdrawal positions".

Par la suite, la bague 200 est décrite dans le cas particulier où elle n'autorise qu'une seule position de retrait. Ainsi, la clef 16 doit être tournée de 360° autour de l'axe 20 en partant de cette position de retrait et avant de revenir à cette position de retrait. La position angulaire de la clef 16 est sa position angulaire autour de l'axe 20 lorsqu'elle est enfoncée à l'intérieur de la serrure 6.Subsequently, the ring 200 is described in the particular case where it allows only one withdrawal position. Thus, the key 16 must be rotated 360 ° about the axis 20 starting from this withdrawal position and before returning to this withdrawal position. The angular position of the key 16 is its angular position about the axis 20 when it is pushed inside the lock 6.

La bague 200 est traversée par un boyau rectiligne 202 qui s'étend le long de l'axe 20. L'extrémité du boyau 202 qui débouche du côté de la face 34 forme l'orifice 36. Ce boyau 202 est ici cylindrique. Sa section transversale correspond à celle de la lame 38 de sorte que la portion 144 de la lame 38 puisse être introduite à l'intérieur du canal 50 par coulissement à travers ce boyau 202. De plus, la section transversale du boyau 202 présente une forme complémentaire à celle du tronçon 148 de sorte que la rotation de la clef 16 entraîne aussi la rotation de la bague 200 autour de l'axe 20. À cet effet, le boyau 202 comporte un méplat supérieur 204 et un méplat inférieur 206 apte à coopérer, respectivement, avec les méplats supérieur et inférieur du tronçon 148.The ring 200 is traversed by a straight hose 202 which extends along the axis 20. The end of the hose 202 which opens on the side of the face 34 forms the orifice 36. This hose 202 is here cylindrical. Its cross section corresponds to that of the blade 38 so that the portion 144 of the blade 38 can be introduced inside the channel 50 by sliding through the hose 202. In addition, the cross section of the hose 202 has a shape complementary to that of the section 148 so that the rotation of the key 16 also causes the ring 200 to rotate about the axis 20. For this purpose, the hose 202 comprises an upper flat surface 204 and a lower flat surface 206 adapted to cooperate, respectively, with the upper and lower flats. lower section 148.

La bague 200 comporte un clapet anti-poussière 210. Ce clapet 210 est déplaçable, lorsque la lame 38 est introduite à l'intérieur du canal 50, depuis une position fermée (représentée sur la figure 9) jusqu'à une position ouverte (représentée sur la figure 10). Dans la position fermée, le clapet 210 obstrue au moins 80 % et, de préférence, 90 % ou 95 % de la section transversale de l'orifice 36. Ainsi, dans la position fermée, le clapet 210 empêche que des corps étrangers, telle que de la poussière, s'introduisent à l'intérieur du canal 50. Dans la position ouverte, au contraire, l'entrée de l'orifice 36 est entièrement dégagée, ce qui permet à la lame 38 d'être introduite à l'intérieur du canal 50. Ici, le clapet 210 est déplacé de sa position fermée vers sa position ouverte par la force exercée par l'extrémité distale de la lame 38 lorsqu'elle est poussée contre le clapet 210 dans la direction d'insertion de la clef.The ring 200 comprises a dust-proof valve 210. This valve 210 is movable, when the blade 38 is introduced inside the channel 50, from a closed position (shown in FIG. figure 9 ) to an open position (shown on the figure 10 ). In the closed position, the valve 210 obstructs at least 80% and, preferably, 90% or 95% of the cross section of the orifice 36. Thus, in the closed position, the valve 210 prevents foreign bodies, such as dust, enter the channel 50. In the open position, on the contrary, the inlet of the orifice 36 is completely disengaged, which allows the blade 38 to be introduced to the Inside the channel 50. Here, the valve 210 is moved from its closed position to its open position by the force exerted by the distal end of the blade 38 when it is pushed against the valve 210 in the direction of insertion of the key.

À cet effet, dans ce mode de réalisation, le clapet 210 comporte deux mâchoires mobiles 212 et 214. Chaque mâchoire 212, 214 est montée libre en rotation autour, respectivement, d'axes 216 et 218 parallèles à l'axe 20. Ces axes 216 et 218 sont solidaires, sans aucun degré de liberté, de la bague 200. Ainsi, lorsque la bague 200 tourne, ils tournent aussi.For this purpose, in this embodiment, the valve 210 comprises two movable jaws 212 and 214. Each jaw 212, 214 is mounted free to rotate about, respectively, axes 216 and 218 parallel to the axis 20. These axes 216 and 218 are integral, without any degree of freedom, the ring 200. Thus, when the ring 200 rotates, they also turn.

Ici, chaque mâchoire 212, 214 comporte un palier, respectivement 220 et 222, à l'intérieur duquel est reçu un pion, respectivement 224 et 226 (figures 9 et 10). Sur la figure 8, seul le pion 226 destiné à être reçu dans le palier 222 est visible.Here, each jaw 212, 214 comprises a bearing, respectively 220 and 222, inside which is received a pin, respectively 224 and 226 ( Figures 9 and 10 ). On the figure 8 , only the pin 226 to be received in the bearing 222 is visible.

Dans la position fermée (figure 9), les deux mâchoires 212, 214 sont en appui mécanique l'une sur l'autre pour obturer l'orifice 36. Ces mâchoires 212, 214 comportent des portions biseautées 228, 230 (figures 9 et 10) pour entraîner ces mâchoires 212, 214 en rotation autour de leurs axes respectifs jusqu'à libérer totalement l'orifice 36 lorsque l'extrémité de la lame 38 appuie sur ces portions biseautées.In the closed position ( figure 9 ), the two jaws 212, 214 are in mechanical support on one another to close the orifice 36. These jaws 212, 214 comprise bevelled portions 228, 230 ( Figures 9 and 10 ) to drive these jaws 212, 214 in rotation about their respective axes until completely release the orifice 36 when the end of the blade 38 presses on these beveled portions.

Le clapet 210 comporte aussi des ressorts 232, 234 qui sollicitent en permanence, respectivement, les mâchoires 212 et 214 vers la position fermée. Ici, les ressorts 232, 234 sont montés autour, respectivement, des axes 216 et 218. Ainsi, dès que la lame 38 est retirée du canal 50, le clapet 210 retourne automatiquement dans sa position fermée.The valve 210 also comprises springs 232, 234 which permanently urge, respectively, the jaws 212 and 214 towards the closed position. Here, the springs 232, 234 are mounted around, respectively, pins 216 and 218. Thus, as soon as the blade 38 is removed from the channel 50, the valve 210 automatically returns to its closed position.

Pour empêcher le retrait de la clef 16 en dehors de la position de retrait, la bague 200 comporte :

  • trois conduits rectilignes 240 à 242, et
  • trois goupilles 244 à 246 montées libres en translation à l'intérieur des conduits, respectivement, 240 à 242.
To prevent the removal of the key 16 out of the retracted position, the ring 200 comprises:
  • three straight ducts 240 to 242, and
  • three pins 244 to 246 mounted free in translation inside the ducts, respectively, 240 to 242.

Chaque conduit 240 à 242 comporte une extrémité avant qui débouche directement à l'intérieur du boyau 202 et une extrémité arrière qui débouche sur un chemin circulaire 250 (figure 11) aménagé sur la périphérie intérieure du canal 50. Dans ce mode de réalisation, le chemin 250 est une bande en sailli vers l'intérieur du canal 50. Le chemin 250 fait le tour complet de l'axe 20. La projection orthogonale du chemin 250 dans le plan 28 est un cercle centré sur l'axe 20.Each duct 240 to 242 has a front end that opens directly into the casing 202 and a rear end that opens onto a circular path 250 ( figure 11 ) on the inner periphery of the channel 50. In this embodiment, the path 250 is an inwardly projecting band of the channel 50. The path 250 makes the complete turn of the axis 20. The orthogonal projection of the path 250 in the plane 28 is a circle centered on the axis 20.

Trois encoches 252 à 254 (figure 12) sont réalisées dans ce chemin 250 et décalées angulairement les unes par rapport aux autres. Ici, le « décalage angulaire » entre un premier et un second éléments est défini comme étant l'angle entre une première et une seconde demi-droites contenues dans un même plan transversal parallèle aux directions Y et Z, l'origine de ces première et seconde demi-droites étant située sur l'axe 20. La première demi-droite passe par l'isobarycentre du premier élément et la seconde demi-droite passe par l'isobarycentre du second élément.Three notches 252 to 254 ( figure 12 ) are made in this path 250 and angularly offset relative to each other. Here, the "angular offset" between a first and a second element is defined as the angle between a first and a second half-line contained in the same transverse plane parallel to the directions Y and Z, the origin of these first and second elements. second half-lines being located on the axis 20. The first half-line passes through the isobarycentre of the first element and the second half-line passes through the isobarycentre of the second element.

Ici, les décalages angulaires entre les encoches 252 à 254 sont choisis pour qu'il n'existe qu'une seule position de retrait. De plus, ici, ces décalages angulaires sont choisis pour que lorsque chaque extrémité arrière des conduits 240 à 242 sont en vis-à-vis des encoches 252 à 254, alors chaque extrémité avant de ces conduits débouche sur une portion circulaire de la section transversale de la lame 38, c'est-à-dire en dehors des méplats supérieur 150 et inférieur.Here, the angular offsets between the notches 252 to 254 are chosen so that there is only one withdrawal position. In addition, here, these angular offsets are chosen so that when each rear end of the ducts 240 to 242 are opposite the notches 252 to 254, then each front end of these ducts opens onto a circular portion of the cross section. of the blade 38, that is to say outside the upper flats 150 and lower.

Par exemple, le décalage angulaire entre les encoches 252 et 253 est égal à 80°, le décalage angulaire entre les encoches 252 et 254 est égal à 145° et le décalage angulaire entre les encoches 253 et 254 est égal à 135° (figure 12).For example, the angular offset between the notches 252 and 253 is equal to 80 °, the angular offset between the notches 252 and 254 is equal to 145 ° and the angular offset between the notches 253 and 254 is equal to 135 ° ( figure 12 ).

Les décalages angulaires entre les conduits 240 à 242 sont ici identiques aux décalages angulaires entre les encoches 252 à 254. Ainsi, dans la position de retrait, l'extrémité arrière de chaque conduit débouche sur une encoche respective.The angular offsets between the ducts 240 to 242 here are identical to the angular offsets between the notches 252 to 254. Thus, in the retracted position, the rear end of each duct opens on a respective notch.

Les goupilles 244 à 246 sont identiques les unes aux autres. Ainsi, par la suite, seule la goupille 244 est décrite en détail. La goupille 244 est montée libre en translation à l'intérieur du conduit 240 entre une position de retenu, représentée sur les figures 10, 13 et 15, et une position rétractée représentée sur les figures 14 et 16.The pins 244 to 246 are identical to each other. Thus, subsequently, only the pin 244 is described in detail. The pin 244 is freely mounted in translation inside the duct 240 between a retaining position, represented on the Figures 10, 13 and 15 , and a retracted position shown on the figures 14 and 16 .

La goupille 244 comporte une partie avant tournée vers le boyau 202 et une partie arrière tournée vers le chemin 250. Dans la position de retenu, la partie avant fait saillie à l'intérieur du boyau 202. Ici, la gorge 146 de la lame 38 est agencée pour recevoir cette partie avant de la goupille 244 lorsque la clef est dans sa position enfoncée (figure 15). De plus, la gorge 146 et la partie avant de la goupille 244 sont conformées pour retenir la lame 38 coincée à l'intérieur du canal 50, tant que la goupille 244 est maintenue dans sa position de retenu. Dans la position de retenu, la partie arrière est légèrement en saillie au-delà de la périphérie extérieure de la bague 200 pour venir directement en appui sur le chemin 250 (voir figures 11 et 15). Ainsi, en dehors des emplacements où sont situées les encoches 252 à 254, le chemin 250 verrouille la goupille 244 dans sa position de retenu et empêche ainsi le retrait de la clef 16.The pin 244 has a front portion facing the casing 202 and a rear portion facing the path 250. In the retained position, the front portion projects into the casing 202. Here, the groove 146 of the blade 38 is arranged to receive this front portion of the pin 244 when the key is in its depressed position ( figure 15 ). In addition, the groove 146 and the front portion of the pin 244 are shaped to retain the blade 38 wedged within the channel 50, as long as the pin 244 is held in its retaining position. In the retaining position, the rear portion is slightly protruding beyond the outer periphery of the ring 200 to bear directly on the path 250 (see figures 11 and 15 ). Thus, outside the locations where the notches 252 to 254 are located, the road 250 locks the pin 244 in its retained position and thus prevents the removal of the key 16.

Dans la position rétractée, la partie arrière de la goupille 244 est reçue à l'intérieur de l'encoche 252 (voir figure 16). Dès lors, tant que la goupille 244 est maintenue dans sa position rétractée, par coopération de forme avec l'encoche 252, elle bloque la rotation de la bague 200 dans cette position angulaire. Cette position angulaire correspond à la position de retrait. Dans la position de retrait, la partie avant de la goupille 244 affleure la face intérieure du boyau 202 (voir figure 16) de sorte que le retrait de la clef 16 est rendu possible.In the retracted position, the rear portion of the pin 244 is received within the notch 252 (see FIG. figure 16 ). Therefore, as the pin 244 is held in its retracted position, by form cooperation with the notch 252, it blocks the rotation of the ring 200 in this angular position. This angular position corresponds to the withdrawal position. In the retracted position, the front portion of the pin 244 is flush with the inner face of the hose 202 (see FIG. figure 16 ) so that the removal of the key 16 is made possible.

Dans ce mode de réalisation, chaque goupille 244 à 246 est une bille sphérique. Ainsi, lorsque la clef 16 est tournée à l'intérieur du canal 50, en dehors de la position de retrait, les billes roulent sur le chemin 250. Dès lors, à la manière d'un roulement à billes, cela limite fortement les frottements entre la bague 200 et le conduit 50. Grâce à cela, la rotation de la clef 16 est facilitée et l'usure de la bague 200 et du chemin 250 est réduite. L'extrémité avant de chacun des conduits 240 à 242 est ici légèrement pincée pour retenir les billes à l'intérieur de ces conduits dans la position de retenu. Par exemple, les billes sont des billes en acier inoxydable de 2 mm de diamètre.In this embodiment, each pin 244 to 246 is a spherical ball. Thus, when the key 16 is turned inside the channel 50, outside the retracted position, the balls roll on the path 250. Therefore, in the manner of a ball bearing, this strongly limits the friction between the ring 200 and the conduit 50. By this, the rotation of the key 16 is facilitated and the wear of the ring 200 and the path 250 is reduced. The front end of each of the ducts 240 to 242 is here slightly pinched to retain the balls inside these ducts in the retained position. For example, the balls are stainless steel balls 2 mm in diameter.

Enfin, la bague 200 comporte des moyens de rappel qui sollicitent en permanence chaque goupille 244 à 246 vers leur position de retenu. Ici, ces moyens de rappel sont réalisés à l'aide d'un anneau élastique 260 (voir figues 8, 13 et 14). L'anneau 260 est, dans ce mode de réalisation, un anneau métallique fendu. Il s'étend sur plus de 350° autour de l'axe 20. L'anneau 260 recouvre uniquement une portion, appelée portion recouverte, de la partie arrière de chaque goupille 244 à 246. Ainsi, l'anneau 260 laisse une portion non-recouverte de la partie arrière de chaque goupille. Ce sont ces portions non-recouvertes qui sont reçues à l'intérieur des encoches 252 à 254 lorsque les goupilles sont dans leur position rétractée. Par ailleurs, c'est parce que l'anneau 260 appuie sur les portions recouvertes des parties arrières des goupilles que celles-ci sont en permanence repoussées vers leur position de retenu.Finally, the ring 200 comprises return means which permanently urge each pin 244 to 246 towards their retaining position. Here, these return means are made using an elastic ring 260 (see figs 8, 13 and 14). Ring 260 is, in this embodiment, a split metal ring. It extends over more than 350 ° around the axis 20. The ring 260 covers only a portion, called the covered portion, of the rear portion of each pin 244 to 246. Thus, the ring 260 leaves a portion of -covered the back of each pin. It is these uncoated portions that are received within the notches 252 to 254 when the pins are in their retracted position. Furthermore, it is because the ring 260 rests on the portions covered with the rear portions of the pins that they are permanently pushed back to their retaining position.

Comme visible sur les figures 13 et 14, le diamètre de l'anneau 260 est plus grand lorsque toutes les goupilles 244 à 246 sont dans leur position rétractée (figure 14) que lorsqu'elles sont dans leur position de retenu (figure 13). Par exemple, le diamètre de l'anneau 260 augmente de 0,8 mm lorsque les goupilles 244 à 246 passent de leur position de retenu à leur position rétractée.As visible on Figures 13 and 14 , the diameter of the ring 260 is greater when all the pins 244 to 246 are in their retracted position ( figure 14 ) only when they are in their restrained position ( figure 13 ). For example, the diameter of the ring 260 increases by 0.8 mm as the pins 244 to 246 move from their retaining position to their retracted position.

L'anneau 260 est conçu pour représenter une raideur telle que, lorsque la clef 16 est dans la position de retrait et que l'utilisateur a retiré sa main de clef 16, les forces exercées par les ressorts 130 et 178 qui poussent la clef 16 vers une position complètement retirée, ne sont pas suffisantes pour désengager complètement les parties avants des goupilles 244 à 246 de la gorge 146. Ainsi, lorsque la clef 16 est dans sa position de retrait et que l'utilisateur retire sa main de cette clef, la clef reste maintenue à l'intérieur du canal 50 par les goupilles 244 à 246. Par exemple, la raideur de l'anneau 260 est ici telle que la force de rappel qui s'exerce sur chacune des goupilles 244 à 246 dans leur position rétractée et égale à 3 N. Dans la position de retenu, cette force de rappel est égale à 1,5 N.The ring 260 is designed to represent a stiffness such that, when the key 16 is in the retracted position and the user has withdrawn his key hand 16, the forces exerted by the springs 130 and 178 which push the key 16 to a fully retracted position, are not sufficient to completely disengage the front portions of the pins 244 to 246 of the groove 146. Thus, when the key 16 is in its retracted position and the user withdraws his hand from this key, the key remains held inside the channel 50 by the pins 244 to 246. For example, the stiffness of the ring 260 is here such that the restoring force which is exerted on each of the pins 244 to 246 in their retracted position and equal to 3 N. In the retained position, this restoring force is equal to 1, N.

La figure 17 représente le profil de la gorge 146 dans un plan horizontal lorsque la clef 16 est dans les positions enfoncée et de retrait. Ce profil est configuré :

  • pour pousser les goupilles 244 à 246 de leur position de retenu vers leur position rétractée lorsque la clef 16 est dans la position de retrait et que l'utilisateur tire la clef 16 vers l'extérieur, et
  • pour autoriser le déplacement automatique de la clef de sa position enfoncée vers sa position reculée dès que l'utilisateur retire sa main de la clef.
The figure 17 represents the profile of the groove 146 in a horizontal plane when the key 16 is in the depressed and retracted positions. This profile is configured:
  • to push the pins 244 to 246 from their retaining position to their retracted position when the key 16 is in the retracted position and the user pulls the key 16 outwards, and
  • to allow the automatic movement of the key from its depressed position to its retracted position as soon as the user removes his hand from the key.

À cet effet, ce profil comporte successivement en se déplaçant vers le corps 39 : une portion inclinée 270, puis un fond plat 272 puis une autre portion inclinée 274.For this purpose, this profile comprises successively moving towards the body 39: an inclined portion 270, then a flat bottom 272 and another inclined portion 274.

La portion 270 permet de transformer, lorsque la clef est dans sa position enfoncée, la force qu'exerce l'utilisateur parallèlement à la direction X pour retirer cette clef 16 en une force radiale qui repousse chaque goupille 244 à 246 de sa position de retenu vers sa position rétractée à l'encontre de la force de rappel de l'anneau 260.The portion 270 makes it possible to transform, when the key is in its depressed position, the force exerted by the user parallel to the direction X to remove the key 16 in a radial force which pushes each pin 244 to 246 of its retaining position towards its retracted position against the restoring force of the ring 260.

La largeur du fond 272 est choisie pour autoriser un déplacement de la clef 16 entre ces positions enfoncée et reculée même lorsque les parties avant des goupilles 244 à 246 sont reçues à l'intérieur de la gorge 146. Par exemple, ici, la largueur du fond 272 est choisie égale à 0,95 mm, ce qui permet en combinaison avec les parties inclinées 270 et 274, un déplacement de 0,95 mm de la clef entre la position enfoncée et la position reculée.The width of the bottom 272 is chosen to allow a movement of the key 16 between these depressed and retracted positions even when the front portions of the pins 244 to 246 are received inside the groove 146. For example, here, the width of the bottom 272 is chosen equal to 0.95 mm, which allows in combination with the inclined portions 270 and 274, a displacement of 0.95 mm of the key between the depressed position and the retracted position.

La portion inclinée 274 est ici le symétrique de la portion inclinée 270 par rapport à un plan médian transversal de la gorge 146.The inclined portion 274 here is symmetrical with the inclined portion 270 with respect to a transverse median plane of the groove 146.

Le fonctionnement de la clef 16 et de la serrure 6 est le suivant. Initialement, la bague 200 est dans la position de retrait. Lorsqu'un utilisateur souhaite ouvrir la porte 2, il place l'extrémité distale de la lame 38 en vis-à-vis de l'orifice 36, puis pousse la clef le long de l'axe 20. L'extrémité distale écarte alors les mâchoires 212 et 214 de sorte que le clapet 210 passe de sa position fermée vers sa position ouverte sous l'action de l'introduction de la lame 38. Dans le même mouvement, la butée 166 de l'embout 162 vient en appui sur le pourtour de l'orifice 36. À partir de cet instant, le volet 160 recule progressivement de sa position avancée vers sa position rétractée au fur et à mesure que la lame 38 pénètre à l'intérieur du canal 50.The operation of the key 16 and the lock 6 is as follows. Initially, the ring 200 is in the retracted position. When a user wishes to open the door 2, he places the distal end of the blade 38 opposite the orifice 36, then pushes the key along the axis 20. The distal end then spreads the jaws 212 and 214 so that the valve 210 passes from its closed position to its open position under the action of the introduction of the blade 38. In the same movement, the stop 166 of the tip 162 bears on around the orifice 36. From this moment, the flap 160 gradually moves back from its advanced position to its retracted position as the blade 38 enters the inside of the channel 50.

En même temps, la lame 38, et en particulier sa portion 144, entre en contact avec les parties avant des goupilles 244 à 246 et repousse ces goupilles 244 à 246 de leur position de retenu vers leur position rétractée (voir figure 16). Typiquement, lors de l'insertion de la clef 16, les billes roulent sur la périphérie extérieure de la portion 144 de la lame 38.At the same time, the blade 38, and in particular its portion 144, comes into contact with the front parts of the pins 244 to 246 and pushes these pins 244 to 246 from their retaining position to their retracted position (see FIG. figure 16 ). Typically, during the insertion of the key 16, the balls roll on the outer periphery of the portion 144 of the blade 38.

L'insertion de la clef 16 se poursuit jusqu'à atteindre la position enfoncée. Dans la position enfoncée, l'extrémité distale de la lame 38 est en appui sur le repoussoir 120 et la gorge 146 se trouve en vis-à-vis des goupilles 244 à 246. Dans ces conditions, sous l'action de l'anneau 260, les goupilles 244 à 246 se déplacent automatiquement de leur position rétractée vers leur position de retenu. À ce stade, les parties avant de ces goupilles sont donc reçues à l'intérieur de la gorge 146.The insertion of the key 16 continues until reaching the depressed position. In the depressed position, the distal end of the blade 38 rests on the foil 120 and the groove 146 is vis-à-vis the pins 244 to 246. Under these conditions, under the action of the ring 260, the pins 244 to 246 move automatically from their retracted position to their retaining position . At this point, the front portions of these pins are thus received inside the groove 146.

Dans la position enfoncée, les contacts 100 à 102 sont directement en appui mécanique, respectivement, sur les bornes 44 à 46. Les liaisons électriques entre la clef 16 et la serrure 6 sont donc établies. Ainsi, la serrure 6 est alimentée par la batterie 41 et la clef échange des informations avec la serrure 6 pour vérifier si cette clef est une clef autorisée à ouvrir la porte 2. Si la clef n'est pas autorisée à ouvrir la porte 2, la rotation du rotor 52 est bloquée et la porte 2 ne peut pas être ouverte.In the depressed position, the contacts 100 to 102 are directly in mechanical support, respectively, on the terminals 44 to 46. The electrical connections between the key 16 and the lock 6 are thus established. Thus, the lock 6 is powered by the battery 41 and the key exchanges information with the lock 6 to check if this key is a key authorized to open the door 2. If the key is not authorized to open the door 2, the rotation of the rotor 52 is blocked and the door 2 can not be opened.

Par contre, si la clef 16 est une clef autorisée à ouvrir la porte 2, la rotation du rotor 52 est autorisée. L'utilisateur peut alors tourner la clef 16 autour de l'axe 20. Lorsque la clef 16 est tournée, les parties arrières des goupilles 244 à 246 viennent directement en appui sur le chemin 250. Ici, les billes roulent sur le chemin 250. Dans cet état, le chemin 250 verrouille les goupilles 244 à 246 dans leur position de retenu (voir figure 15). L'utilisateur ne peut donc plus retirer la clef 16. Autrement dit, la coopération mécanique de la partie avant de chaque goupille 244 à 246 avec la portion inclinée 270 de la gorge 146 empêche de retirer la clef 16 en dehors de la position de retrait. Dans le mode de réalisation décrit, à cause des décalages angulaires choisis entre les conduits 240 à 242 et entre les encoches 252 à 254, il existe toujours au moins deux parties arrières de goupille en appui sur le chemin 250 et cela quelle que soit la position angulaire de la clef 16 en dehors de la position de retrait.By cons, if the key 16 is a key authorized to open the door 2, the rotation of the rotor 52 is allowed. The user can then turn the key 16 around the axis 20. When the key 16 is turned, the rear parts of the pins 244 to 246 come directly on the path 250. Here, the balls roll on the path 250. In this state, the path 250 locks the pins 244 to 246 in their retaining position (see FIG. figure 15 ). The user can therefore no longer remove the key 16. In other words, the mechanical cooperation of the front portion of each pin 244 to 246 with the inclined portion 270 of the groove 146 prevents the key 16 from being withdrawn from the retracted position. . In the embodiment described, because of the angular offsets chosen between the ducts 240 to 242 and between the notches 252 to 254, there are still at least two rear pin parts bearing on the path 250 and this whatever the position angular of the key 16 outside the withdrawal position.

Une fois que la clef 16 a fait un ou plusieurs tours complètes, elle retourne à la position de retrait. Dans cette position, l'utilisateur tire la clef 16 vers l'extérieur. La portion inclinée 270 déplace alors simultanément les goupilles 244 à 246 de leur position de retenu jusqu'à leur position rétractée (voir figure 16). La clef 16 peut alors être complètement retirée de la serrure 6. Au fur et à mesure que la lame 38 est retirée du canal 50, le volet 160 retourne progressivement vers sa position avancée sous l'action du ressort 178. Dès lors, dès que la clef 16 est complètement retirée du canal 50, le volet 160 recouvre complètement les bornes électriques 44 à 46 et les protègent.Once the key 16 has made one or more complete turns, it returns to the retracted position. In this position, the user pulls the key 16 outward. The inclined portion 270 then simultaneously moves the pins 244 to 246 from their retained position to their retracted position (see FIG. figure 16 ). The key 16 can then be completely removed from the lock 6. As the blade 38 is removed from the channel 50, the flap 160 gradually returns to its advanced position under the action of the spring 178. Therefore, as soon as the key 16 is completely removed from the channel 50, the flap 160 completely covers the electrical terminals 44 to 46 and protect them.

Si dans la position enfoncée et quelle que soit la position angulaire de la clef 16, l'utilisateur retire sa main de la clef, les ressorts 130 et 178 déplacent alors automatiquement la clef 16 de la position enfoncée vers la position reculée. Grâce à cela, les liaisons électriques entre la clef 16 et la serrure 6 sont automatiquement interrompues. Ainsi, si l'utilisateur oublie ou laisse sa clef à l'intérieur de la serrure 6, la serrure 6 n'est plus alimentée par la batterie 41. La batterie 41 ne se décharge donc pas inutilement. On prolonge ainsi sa durée de vie. On notera aussi que même dans la position reculée, les goupilles 244 à 246 coopèrent avec la gorge 146 pour maintenir la lame 38 à l'intérieur du canal 50. Dès lors, la clef 16 n'est pas éjectée en dehors de la serrure 6 lorsque l'utilisateur retire sa main. Cela évite de faire tomber la clef 16 par terre.If in the depressed position and regardless of the angular position of the key 16, the user removes his hand from the key, the springs 130 and 178 then automatically move the key 16 from the depressed position to the retracted position. Thanks to this, the electrical connections between the key 16 and the lock 6 are automatically interrupted. Thus, if the user forgets or leaves his key inside the lock 6, the lock 6 is no longer powered by the battery 41. The battery 41 therefore does not discharge unnecessarily. This prolongs its life. Note also that even in the retracted position, the pins 244 to 246 cooperate with the groove 146 to maintain the blade 38 inside the channel 50. Therefore, the key 16 is not ejected in outside the lock 6 when the user withdraws his hand. This avoids knocking the key down.

Chapitre III : VariantesChapter III: Variants Variantes de la bague 200 :Variations of the ring 200:

Chaque goupille peut comporter plusieurs billes logées à l'intérieur du même conduit. Par exemple, dans ce cas, les billes sont placées les unes derrière les autres à l'intérieur du conduit. D'autres dispositions de ces billes sont possibles. Par exemple, les différentes dispositions des billes à l'intérieur d'un conduit telles que décrites dans la demande déposée en France sous le n° 1756907 le 21 juillet 2017 , peuvent être transposées sans difficulté au cas des billes situées à l'intérieur d'un des conduits 240 à 242. De même, dans le cas où la goupille est formée de plusieurs billes, placées les unes derrière les autres, celles-ci peuvent être séparées les unes des autres par un piston cylindrique ou toute autre pièce coulissante.Each pin may have several balls housed inside the same conduit. For example, in this case, the balls are placed one behind the other inside the conduit. Other arrangements of these beads are possible. For example, the various arrangements of the balls inside a conduit as described in the application filed in France under No. 1756907 on July 21, 2017 , can be transposed without difficulty to the case of the balls located inside one of the ducts 240 to 242. Similarly, in the case where the pin is formed of several balls, placed one behind the other, they can to be separated from each other by a cylindrical piston or any other sliding part.

Dans un autre mode de réalisation, les billes 244 à 246 sont remplacées par des pistons cylindriques aptes à coulisser entre les positions de retenu et les positions rétractées mais incapables de tourner sur eux-mêmes autour d'un axe parallèle à l'axe 20.In another embodiment, the balls 244 to 246 are replaced by cylindrical pistons slidable between the retained positions and the retracted positions but unable to rotate on themselves about an axis parallel to the axis 20.

Dans un mode de réalisation simplifié, la bague comporte seulement un ou deux conduits et donc seulement une ou deux goupilles. Inversement, la bague peut aussi comporter plus de trois conduits et donc plus de trois goupilles distinctes.In a simplified embodiment, the ring comprises only one or two ducts and therefore only one or two pins. Conversely, the ring may also have more than three ducts and therefore more than three separate pins.

Le nombre d'encoches peut être inférieur au nombre de goupilles, égal au nombre de goupilles ou supérieur à ce nombre de goupilles. En fait, le nombre de goupilles et le nombre d'encoches sont choisis en fonction du nombre de positions de retrait souhaitées.The number of notches may be less than the number of pins, equal to the number of pins or greater than this number of pins. In fact, the number of pins and the number of notches are chosen according to the number of desired withdrawal positions.

Les écarts angulaires entre les conduits de la bague 200 et entre les encoches peuvent être modifiés pour obtenir des positions de retrait supplémentaires ou, au contraire, en éliminer certaines. Par exemple, les décalages angulaires entre les conduits et les encoches peuvent être prévus pour autoriser plusieurs positions de retrait distinctes, par exemple, décalées angulairement les unes des autres de 90° ou de 180°.The angular gaps between the conduits of the ring 200 and between the notches can be modified to obtain additional withdrawal positions or, on the contrary, to eliminate some of them. For example, the angular offsets between the ducts and the notches may be provided to allow several distinct withdrawal positions, for example, angularly offset from each other by 90 ° or 180 °.

La bague 200 n'affleure pas nécessairement la façade 34. Dans une variante, la bague 200 est située en retrait de la façade 34 à l'intérieur du canal 50.The ring 200 does not necessarily flush the facade 34. In a variant, the ring 200 is set back from the facade 34 inside the channel 50.

De nombreux autres modes de réalisation des moyens de rappel des goupilles sont possibles. Par exemple, l'anneau 260 peut être remplacé par trois languettes élastiques. Chacune de ces languettes comporte une extrémité fixée sans aucun degré de liberté sur le pourtour de la bague et une extrémité opposée en appui sur la partie arrière d'une goupille respective de manière à solliciter en permanence cette goupille vers sa position de retenu.Many other embodiments of the pin return means are possible. For example, the ring 260 can be replaced by three elastic tongues. Each of these tabs has a fixed end without any degree of freedom on the periphery of the ring and an opposite end resting on the rear part of a respective pin so as to permanently request this pin to its retaining position.

L'anneau 260 peut également être plus large que ce qui a été décrit jusqu'à présent. Par exemple, l'anneau peut recouvrir plus de la moitié de la partie arrière de chaque goupille. Dans ce cas, le chemin circulaire peut comporter une rainure circulaire apte à recevoir l'anneau élastique lorsque les goupilles sont dans leur position rétractée et les encoches débouchent dans cette rainure. Ainsi, dans la position de retrait, lorsque la clef est retirée, l'anneau est reçu à l'intérieur de cette rainure et les portions non-recouvertes des parties arrières des goupilles sont reçues dans des encoches respectives. En dehors de la position de retrait, au moins une des portions non-recouvertes est en appui sur le chemin 250, ce qui empêche le déplacement de cette goupille de sa position de retenu vers sa position de retrait.The ring 260 may also be wider than what has been described so far. For example, the ring may cover more than half of the back portion of each pin. In this case, the circular path may comprise a circular groove adapted to receive the elastic ring when the pins are in their retracted position and the notches open into this groove. Thus, in the retracted position, when the key is removed, the ring is received within this groove and the uncovered portions of the back portions of the pins are received in respective notches. Outside the withdrawal position, at least one of the uncovered portions is supported on the path 250, which prevents the displacement of this pin from its retained position to its retracted position.

Dans un autre mode de réalisation des moyens de rappel des goupilles, le fond 272 de la gorge 146 est aimanté et les goupilles sont réalisées dans des matériaux ferromagnétiques. Dans ces conditions, les goupilles sont attirées magnétiquement en permanence vers le fond 272 dès qu'elles se trouvent en face de ce fond.In another embodiment of the pin return means, the bottom 272 of the groove 146 is magnetized and the pins are made of ferromagnetic materials. Under these conditions, the pins are magnetically attracted permanently towards the bottom 272 as soon as they are in front of this bottom.

Dans un autre mode de réalisation, l'anneau 260 est remplacé par un anneau élastique réalisé en matériau élastomère. Dans ce cas, cet anneau en matériau élastomère n'est pas fendu.In another embodiment, the ring 260 is replaced by an elastic ring made of elastomeric material. In this case, this ring of elastomeric material is not split.

Toujours dans un autre mode de réalisation des moyens de rappel des goupilles, la largeur de l'anneau élastique est supérieure ou égale à la largeur des parties arrières des goupilles. Dans ce cas, l'anneau est perforé en face de chacune des parties arrières des goupilles, de sorte que celles-ci peuvent faire saillie à travers l'anneau pour être reçues à l'intérieur des encoches.Still in another embodiment of the pin return means, the width of the elastic ring is greater than or equal to the width of the rear portions of the pins. In this case, the ring is perforated in front of each of the rear portions of the pins, so that they can protrude through the ring to be received inside the notches.

Le chemin 250 n'est pas nécessairement une bande en saillie à l'intérieur du canal 50. Par exemple, dans un autre mode de réalisation, le chemin 250 affleure la paroi intérieure du canal 50 ou forme une rainure dans la paroi du canal 50.The path 250 is not necessarily a protruding band inside the channel 50. For example, in another embodiment, the path 250 is flush with the inner wall of the channel 50 or forms a groove in the wall of the channel 50 .

Dans tous les modes de réalisation, le ressort 130 ou 178 peut être réalisé à l'aide d'un bloc en matériau élastomère.In all embodiments, the spring 130 or 178 may be made using a block of elastomeric material.

Le clapet anti-poussière 210 peut être omis. Il existe aussi d'autres modes de réalisation possibles du clapet anti-poussière. Par exemple, en variante, le clapet anti-poussière comporte une seule mâchoire mobile ou, au contraire, plus de deux mâchoires mobiles.Dust plug 210 may be omitted. There are also other possible embodiments of the anti-dust valve. For example, alternatively, the dust gate has a single movable jaw or, conversely, more than two movable jaws.

La bague 200 peut aussi être implémentée dans d'autres serrures que des serrures électroniques. En effet, ce qui a été enseigné ici dans le cas particulier d'une serrure électronique peut aussi être mis en oeuvre dans une serrure mécanique dépourvue d'électronique.The ring 200 can also be implemented in locks other than electronic locks. Indeed, what has been taught here in the particular case of an electronic lock can also be implemented in a mechanical lock without electronics.

En variantes, la bague 200 peut être mise en oeuvre indépendamment de la présence d'un volet 160 et du ressort 178 dans la clef 16. De façon similaire, la bague 200 peut être mise en oeuvre indépendamment de la présence du ressort 130 dans la serrure 6. De même, la bague 200 peut être mise en oeuvre avec une gorge 146 dont la largeur ne permet pas le déplacement de la clef 16 de sa position enfoncée vers sa position reculée dès que l'utilisateur retire sa main de cette clef. Par exemple, dans cette dernière variante, la gorge 146 est suffisamment étroite pour maintenir la clef 16 dans sa position enfoncée, même si l'utilisateur retire sa main de la clef.In variants, the ring 200 can be implemented independently of the presence of a flap 160 and the spring 178 in the key 16. Similarly, the ring 200 can be implemented independently of the presence of the spring 130 in the lock 6. Similarly, the ring 200 may be implemented with a groove 146 whose width does not allow the movement of the key 16 from its depressed position to its retracted position as soon as the user removes his hand from this key. For example, in this last variant, the groove 146 is sufficiently narrow to hold the key 16 in its depressed position, even if the user withdraws his hand from the key.

Variantes du volet de protection :Variants of the protection shutter:

Il n'est pas nécessaire que le volet de protection se déplace de sa position avancée vers sa position rétractée par un mouvement de translation. Par exemple, en variante, le mouvement de translation est remplacé par un mouvement de rotation combiné ou non avec un mouvement de translation autour d'un axe solidaire de la clef. Par exemple, le volet pivote autour d'un axe perpendiculaire à l'axe d'introduction de la clef. Dans un autre mode de réalisation, le volet pivote autour de l'axe d'introduction de la clef. Le volet peut aussi se déplacer entre sa position avancée et sa position rétractée en suivant une trajectoire hélicoïdale dont l'axe de révolution est confondu avec l'axe d'introduction de la clef. Même dans ces modes de réalisation où le déplacement entre la position rétractée et la position avancée n'est pas nécessairement une translation, le déplacement est de préférence actionné mécaniquement par l'insertion de la clef à l'intérieur de la serrure. Par exemple, comme dans les modes de réalisation décrits précédemment, le déplacement est actionné par la coopération d'une butée prévue à cet effet sur le volet avec une butée correspondante prévue sur la serrure 6.It is not necessary for the protective flap to move from its advanced position to its retracted position by a translational movement. For example, alternatively, the translation movement is replaced by a rotational movement combined or not with a translational movement about an axis integral with the key. For example, the flap pivots about an axis perpendicular to the insertion axis of the key. In another embodiment, the flap pivots about the insertion axis of the key. The flap can also move between its advanced position and its retracted position along a helical path whose axis of revolution is coincident with the insertion axis of the key. Even in these embodiments where the displacement between the retracted position and the advanced position is not necessarily a translation, the displacement is preferably mechanically actuated by the insertion of the key inside the lock. For example, as in the embodiments described above, the movement is actuated by the cooperation of a stop provided for this purpose on the flap with a corresponding stop provided on the lock 6.

Le volet 160 peut être mis en oeuvre indépendamment de la bague 200. Par exemple, le volet 160 peut être mis en oeuvre sur une clef dépourvue de gorge 146 et de bague 200. Le volet 160 peut aussi être mis en oeuvre sans que la gorge 146 soit suffisamment large pour permettre la coupure automatique des liaisons électriques entre la clef et la serrure dès que l'utilisateur retire sa main de la clef. Il n'est pas non plus nécessaire que le ressort 178 soit dimensionné pour être capable de déplacer la clef 16 de sa position enfoncée vers sa position reculée dès que l'utilisateur retire sa main de la clé. Le volet 160 peut aussi être mis en oeuvre sans la présence du ressort 130.The flap 160 may be implemented independently of the ring 200. For example, the flap 160 may be implemented on a key without groove 146 and ring 200. The flap 160 may also be implemented without the throat 146 is large enough to allow the automatic cut of the electrical connections between the key and the lock as soon as the user removes his hand from the key. It is also not necessary for the spring 178 to be sized to be able to move the key 16 from its depressed position to its retracted position as soon as the user removes his hand from the key. The shutter 160 can also be implemented without the presence of the spring 130.

Variantes du mécanisme de coupure automatique des liaisons électriques entre la clef et la serrure :Variations of the mechanism of automatic cut of the electrical connections between the key and the lock:

En variantes, le ressort 130 est omis et le ressort 178 est dimensionné pour être capable à lui seul de déplacer la clef 16 de sa position enfoncée vers sa position reculée dès que l'utilisateur retire la main de cette clef.In variants, the spring 130 is omitted and the spring 178 is dimensioned to be able alone to move the key 16 from its depressed position to its retracted position as soon as the user removes the hand from this key.

Dans une autre variante, ni le ressort 130 ni le ressort 178 n'est capable à lui seul de déplacer la clef 16 de sa position enfoncée vers sa position reculée. Par contre, le groupe de ressorts, comportant le ressort 130 et le ressort 178, est capable, à lui seul de déplacer la clef 16 de sa position enfoncée vers sa position reculée dès que l'utilisateur retire la main de cette clef.In another variant, neither the spring 130 nor the spring 178 is capable alone to move the key 16 from its depressed position to its retracted position. On the other hand, the group of springs, comprising the spring 130 and the spring 178, is capable, on its own, of moving the key 16 from its depressed position to its retracted position as soon as the user removes the hand from this key.

Chacun des ressorts 130, 178 peut être remplacé par un groupe de plusieurs ressorts situés, respectivement, à l'intérieur de la serrure 6 et dans la clef 16.Each of the springs 130, 178 can be replaced by a group of several springs situated, respectively, inside the lock 6 and in the key 16.

Le mécanisme de coupure automatique des liaisons électriques entre la clef 16 et la serrure 6 décrit précédemment peut être mis en oeuvre indépendamment du volet 160. Dans ce cas, le ressort 178 peut être omis. Le ressort 130 est alors dimensionné pour être capable à lui seul de déplacer la clef 16 de sa position enfoncée vers sa position reculée dès que l'utilisateur retire la main de cette clef.The mechanism for automatically cutting the electrical connections between the key 16 and the lock 6 described above can be implemented independently of the flap 160. In this case, the spring 178 can be omitted. The spring 130 is then dimensioned to be able alone to move the key 16 from its depressed position to its retracted position as soon as the user removes the hand of the key.

Dans un autre mode de réalisation, l'embout 162 est remplacé par un simple anneau qui ne recouvre pas ou pas complètement les bornes électriques 44 à 46 dans la position avancée. Cet anneau comporte une extrémité distale annulaire et la butée de la clef correspond à cette extrémité distale annulaire.In another embodiment, the tip 162 is replaced by a simple ring that does not completely or completely cover the electrical terminals 44 to 46 in the advanced position. This ring has an annular distal end and the stop of the key corresponds to this annular distal end.

De façon similaire, le mécanisme de coupure automatique des liaisons électriques peut aussi être mis en oeuvre indépendamment de la bague 200. Dans ce cas, si la bague 200 est absente, de préférence, les ressorts 130 et 178 sont dimensionnés pour que la clef 16 ne soit pas complètement éjectée du canal 50 dès que l'utilisateur retire sa main de cette clef. La bague 200 peut être omise, par exemple, dans le cas des serrures où il n'est pas nécessaire de tourner la clef pour la déverrouiller. Un simple enfoncement de la lame de clef à l'intérieur de la serrure est alors suffisant pour la déverrouiller.Similarly, the automatic breaking mechanism of the electrical connections can also be implemented independently of the ring 200. In this case, if the ring 200 is absent, preferably, the springs 130 and 178 are sized so that the key 16 is not completely ejected from the channel 50 as soon as the user removes his hand from this key. The ring 200 can be omitted, for example, in the case of locks where it is not necessary to turn the key to unlock. A simple depression of the key blade inside the lock is then sufficient to unlock it.

Même dans le cas où la serrure ne comporte pas la bague 200, la lame 38 peut comporter le logement 146. Dans ce dernier cas, avantageusement, la serrure comporte les caractéristiques suivantes pour éviter que la clef 16 soit complètement éjectée :

  • au moins un conduit similaire aux conduits 240 à 242 sauf qu'il est, par exemple, creusé dans la coquille 54,
  • au moins une goupille montée à l'intérieur de ce conduit et présentant une partie avant,
  • des moyens de rappel qui sollicitent en permanence cette goupille vers la position de retenu.
La goupille est déplaçable entre la position de retenu et la position rétractée de façon similaire à ce qui a été décrit pour les goupilles 244, 245. Ainsi, lorsque la clef est dans sa position reculée, la partie avant de la goupille est reçue à l'intérieur du logement 146. La goupille maintient alors, à l'encontre de la force exercée par le ou les ressorts 130, 178, la clef à l'intérieur du canal 50 par coopération de forme entre le logement 146 et la partie avant de la goupille. Lorsque l'utilisateur tire sur la clef pour la retirer, la goupille se déplace alors vers sa position rétractée de façon similaire à ce qui a été décrit dans le cas des goupilles 244, 245. L'utilisateur peut alors retirer complètement la clef de la serrure.Even in the case where the lock does not include the ring 200, the blade 38 may include the housing 146. In the latter case, advantageously, the lock has the following features to prevent the key 16 is completely ejected:
  • at least one duct similar to the ducts 240 to 242 except that it is, for example, hollowed into the shell 54,
  • at least one pin mounted inside this conduit and having a front part,
  • return means which permanently urge this pin towards the retained position.
The pin is movable between the retaining position and the retracted position in a manner similar to that described for the pins 244, 245. Thus, when the key is in its retracted position, the front portion of the pin is received by the pin. Inside the housing 146. The pin then maintains, against the force exerted by the spring or springs 130, 178, the key inside the channel 50 by shape cooperation between the housing 146 and the front part of the housing. the pin. When the user pulls the key to remove it, the pin then moves to its retracted position in a manner similar to what has been described in the case of the pins 244, 245. The user can then completely remove the key from the lock. lock.

On notera que dans le cas où le logement 146 a pour seule fonction d'empêcher l'éjection complète de la clef, la largeur du logement 146 peut être réduite pour recevoir la partie avant de la goupille uniquement dans la position reculée et pas dans la position enfoncée.Note that in the case where the housing 146 has the sole function to prevent the complete ejection of the key, the width of the housing 146 can be reduced to receive the front portion of the pin only in the retracted position and not in the depressed position.

Autres variantes :Other variants:

D'autres modes de réalisation du logement aménagé dans la lame 38 pour recevoir les parties avant des goupilles dans leur position de retenu sont possibles. Par exemple, ce logement ne fait pas nécessairement le tour complet de la lame 38. Ainsi, en variante, la gorge 146 est remplacée par trois logements distincts réalisés sur la périphérie de la lame 38 et situés dans un même plan transversal. Chacun de ces logements est en vis-à-vis de l'extrémité avant d'un conduit respectif 240 à 242 lorsque la clef est dans sa position enfoncée. Chacun de ces logements reçoit l'extrémité avant d'une goupille respective 244 à 246 lorsque la clef est dans sa position enfoncée. Par contre, ces logements ne sont pas nécessairement connectés les uns aux autres de manière à former un logement continu.Other embodiments of the housing arranged in the blade 38 for receiving the front parts of the pins in their retaining position are possible. For example, this housing does not necessarily make the complete turn of the blade 38. Thus, alternatively, the groove 146 is replaced by three separate housings made on the periphery of the blade 38 and located in the same transverse plane. Each of these housings is vis-à-vis the front end of a respective conduit 240 to 242 when the key is in its depressed position. Each of these housings receives the leading end of a respective pin 244 to 246 when the key is in its depressed position. On the other hand, these dwellings are not necessarily connected to each other so as to form a continuous dwelling.

La batterie 41 peut être logée à l'intérieur de la serrure 6. Dans ce cas, c'est la serrure qui alimente la clef 16 lorsque celle-ci est dans sa position enfoncée.The battery 41 can be housed inside the lock 6. In this case, it is the lock that supplies the key 16 when the latter is in its depressed position.

Le nombre de liaisons électriques entre la clef et la serrure, et donc le nombre de contacts électriques et de bornes électriques, peut être égal à un ou à deux ou être supérieur à trois ou quatre.The number of electrical connections between the key and the lock, and therefore the number of electrical contacts and electrical terminals, can be one or two or be greater than three or four.

D'autres modes de réalisation des contacts 100 à 102 sont possibles. Par exemple, dans certains de ces modes de réalisation, le fourreau 51 est omis.Other embodiments of the contacts 100 to 102 are possible. For example, in some of these embodiments, the sleeve 51 is omitted.

L'architecture mécanique de la serrure électronique peut être différente de celle décrite ici. Par exemple, la serrure électronique peut comporter un seul demi-stator. Dans ce cas, le demi-stator intérieur peut être remplacé par un loquet de verrouillage et, en alternance, de déverrouillage manuel de la serrure électronique.The mechanical architecture of the electronic lock may be different from that described here. For example, the electronic lock may comprise a single half-stator. In this case, the inner half-stator can be replaced by a locking latch and, alternately, manual unlocking of the electronic lock.

Les différentes variantes de la serrure électronique mentionnées dans la demande FR3025236 s'appliquent aussi aux modes de réalisation décrits ici.The different variants of the electronic lock mentioned in the application FR3025236 also apply to the embodiments described herein.

Chapitre IV : AvantagesChapter IV: Benefits Avantages de la bague 200:Advantages of the 200 ring:

La bague autorise le retrait et l'insertion de la clef uniquement dans une ou plusieurs positions de retrait prédéterminées où toutes les goupilles sont en face d'une encoche respective correspondante. Ainsi, puisque la ou les positions de retrait sont spécifiées, la course angulaire minimale de la clef entre deux de ses positions de retrait est aussi imposée et connue par avance. Par ailleurs, puisque pendant l'insertion de la clef, les goupilles sont dans leur position rétractée et leurs parties arrières reçues à l'intérieur d'encoches respectives, cela empêche la rotation de la lame pendant l'insertion de la clef. Grâce à cela, les contacts électriques 44 à 46 de la clef sont correctement positionnés à l'intérieur du canal 50 pour venir en appui mécanique sur les contacts électriques 100 à 102 de la serrure. Enfin, la bague 200 rend aussi la serrure plus robuste vis-à-vis des attaques par perçage en utilisant un foret dont le diamètre est inférieur à celui du canal 50. En effet, dans ce cas, si le diamètre du foret est plus large que celui de l'orifice 36, alors le fait de tenter de percer la serrure se traduit seulement par le fait que cela entraîne en rotation la bague 200.The ring allows removal and insertion of the key only in one or more predetermined withdrawal positions where all the pins are opposite a corresponding respective notch. Thus, since the one or more withdrawal positions are specified, the minimum angular travel of the key between two of its withdrawal positions is also imposed and known in advance. Furthermore, since during the insertion of the key, the pins are in their retracted position and their rear portions received within respective notches, this prevents the rotation of the blade during the insertion of the key. Thanks to this, the electrical contacts 44 to 46 of the key are correctly positioned inside the channel 50 to come into mechanical support on the electrical contacts 100 to 102 of the lock. Finally, the ring 200 also makes the lock more robust against piercing attacks by using a drill whose diameter is smaller than that of the channel 50. In fact, in this case, if the diameter of the drill is wider. than that of the orifice 36, then the attempt to pierce the lock only results in the fact that this rotates the ring 200.

Le fait que la partie arrière de la goupille soit une bille libre en rotation, limite le frottement entre la bague 200 et le chemin 250. Cela limite donc l'usure de cette bague 200 dans le temps.The fact that the rear part of the pin is a free-rotating ball, limits the friction between the ring 200 and the path 250. This therefore limits the wear of this ring 200 over time.

Le fait d'utiliser une seule bille pour former les parties avant et arrière de chaque goupille simplifie la fabrication de la serrure.Using a single ball to form the front and rear portions of each pin simplifies the manufacture of the lock.

Le fait d'utiliser d'utiliser au moins trois goupilles réparties sur une course angulaire autour de l'axe 20 d'au moins 190°, et de préférence d'au moins 210°, permet de centrer la bague 200 sur l'axe 20 en utilisant seulement ces trois goupilles. Ainsi, la bague 200 est en contact mécanique avec le chemin 250 uniquement par l'intermédiaire de ces goupilles ce qui limite les frottements entre la bague et le chemin 250.The fact of using at least three pins distributed over an angular stroke around the axis 20 of at least 190 °, and preferably at least 210 °, makes it possible to center the ring 200 on the axis 20 using only these three pins. Thus, the ring 200 is in mechanical contact with the path 250 only via these pins which limits the friction between the ring and the path 250.

Le fait d'avoir une seule position de retrait permet d'imposer que la clef fasse au moins un tour complet avant de pouvoir être retirée.Having only one withdrawal position allows the key to be at least one full turn before it can be removed.

Le fait que les décalages angulaires entre l'un quelconque des conduits 240 à 242 et ses deux plus proches voisin à droite et à gauche soient différents, garantit qu'en tout point de la course angulaire de la clef en dehors d'une position de retrait, au moins deux goupilles font saillie à l'intérieur de la gorge 146. Cela maintient plus fermement la clef bloquée à l'intérieur de la serrure.The fact that the angular offsets between any of the ducts 240 to 242 and its two nearest neighbors to the right and to the left are different ensures that at any point in the angular travel of the key outside a position of withdrawal, at least two pins protrude into the groove 146. This maintains more firmly the key locked inside the lock.

L'utilisation d'un anneau élastique fendu pour réaliser les moyens de rappel 160 permet à l'aide d'une seule pièce simple à monter de réaliser l'ensemble des moyens de rappel de toutes les goupilles.The use of a split elastic ring to achieve the return means 160 allows the aid of a single piece to mount to achieve all the return means of all the pins.

Le fait de placer la bague 200 à l'entrée du canal 50 améliore le guidage en rotation de la lame de la clef.Placing the ring 200 at the inlet of the channel 50 improves the rotational guidance of the blade of the key.

La présence du ressort 130 qui repousse automatiquement la lame 38 vers l'extérieur permet de couper automatiquement les liaisons électriques entre la clef et la serrure électronique lorsqu'un utilisateur oublie sa clef à l'intérieur de la serrure. On évite ainsi d'alimenter inutilement la serrure ou la clef. De plus, les parties avant des goupilles restent logées à l'intérieur de la gorge 146 en absence de l'utilisateur. Dès lors, même lorsque la liaison électrique entre la clef et la serrure électrique est interrompue, la clef 16 est maintenue à l'intérieur de la serrure. Grâce à cela, des ressorts de raideur plus importante peuvent être utilisés pour repousser la clef de sa position enfoncée vers sa position reculée sans faire tomber la clef parterre. Cela facilite la réalisation de la serrure.The presence of the spring 130 which automatically pushes the blade 38 outwards automatically cuts the electrical connections between the key and the electronic lock when a user forgets his key inside the lock. This avoids unnecessarily supplying the lock or key. In addition, the front portions of the pins remain housed inside the groove 146 in the absence of the user. Therefore, even when the electrical connection between the key and the electric lock is interrupted, the key 16 is kept inside the lock. As a result, higher stiffness springs can be used to push the key from its depressed position to its retracted position without dropping the floor key. This facilitates the realization of the lock.

Avantages du volet de protection :Advantages of the protection component:

Le volet 160 empêche que les bornes électriques 44 à 46 soient endommagées lorsque la clef s'entrechoque avec d'autres clefs du même porte-clefs ou avec des objets situés dans une même poche de l'utilisateur. De plus, ce volet 160 empêche que les bornes 44 à 46 soient court-circuitées les unes avec les autres par un objet métallique attaché au même porte-clefs ou présent sur le même lieu de stockage que les clefs. On empêche ainsi que la batterie 41 se décharge inutilement et on prolonge sa durée de vie.The shutter 160 prevents the electrical terminals 44 to 46 from being damaged when the key clashes with other keys of the same key ring or with objects located in the same pocket of the user. In addition, this flap 160 prevents the terminals 44 to 46 are short-circuited with each other by a metal object attached to the same key-ring or present on the same storage location as the keys. This prevents the battery 41 from being discharged unnecessarily and prolongs its service life.

L'utilisation d'un embout tubulaire permet à l'aide d'une même pièce de former le volet de protection et de retenir ce volet de protection sur la lame de la clef.The use of a tubular nozzle allows using the same piece to form the protective flap and retain the protective flap on the blade of the key.

Avantages du mécanisme de coupure automatique des liaisons électriques :Advantages of the automatic shutdown mechanism of electrical connections:

La présence d'un ressort qui repousse en permanence la clef 16 vers l'extérieur permet de couper automatiquement la liaison électrique entre cette clef et la serrure si un utilisateur oublie cette clef dans la serrure. On évite ainsi que la serrure et la clef continuent inutilement à consommer de l'énergie électrique.The presence of a spring that constantly pushes the key 16 outwardly automatically cuts the electrical connection between this key and the lock if a user forgets that key in the lock. This prevents the lock and the key continue unnecessarily to consume electrical energy.

Claims (8)

  1. Assembly comprising:
    - an electronic lock (6), this electronic lock comprising a shell (22) in which there is created a straight channel (50) that extends along an axis (20) of introduction of the key,
    - an electric contact (100-102) located in a wall of the straight channel,
    - an electronic key (6) comprising a straight blade (38) that can be introduced into the channel,
    - an electric terminal (44-46) located on the blade of the key and able, when the key is in an inserted position inside the electronic lock, to come to press directly and mechanically against the electric contact located in the wall of the channel,
    characterized in that the assembly comprises a group of one or more springs (130, 178) each located either in the electronic lock or in the electronic key, this group of one or more springs being able, on its own, when the hand of the user is removed from the key, to push the blade of the key back from its inserted position to a withdrawn position in which the electric contact (100-102) and the electric terminal (44-46) are mechanically and electrically separated from one another.
  2. Assembly according to Claim 1, in which the group of one or more springs comprises only one or multiple springs (130) located inside the electronic lock.
  3. Assembly according to either one of the preceding claims, in which the key comprises:
    - a body (39) forming a gripping means for turning the key inside the electronic lock,
    - a tubular end piece (162) that completely surrounds the blade, this tubular end piece being displaceable in translation parallel to the axis of introduction of the key between an advanced position and a retracted position, this end piece comprising:
    • an annular distal end (166) oriented towards the electronic lock upon introduction of this key into the electronic lock, this annular distal end being able to come to press against a corresponding stop of the electronic lock so as to move this end piece from the advanced position to the retracted position when the key is introduced into the lock, and
    • an annular proximal end (168) oriented towards the body of the key,
    - a coil spring (178) whose axis is parallel to the axis of introduction of the key, with one end of this coil spring pressing against the annular proximal end and the other end of this spring pressing against the body (39) of the key so as to always urge the tubular end piece towards its advanced position, this spring belonging to said group of one or more springs.
  4. Assembly according to Claim 3, in which:
    - in the advanced position, the end piece (162) entirely covers the electric terminal so as to isolate it mechanically and electrically from the outside environment, and
    - in the retracted position, the end piece (162) does not cover the electric terminal and allows this electric terminal to be pressed mechanically against the electric contact.
  5. Assembly according to any one of the preceding claims, in which, in the withdrawn position, the key is held inside the channel.
  6. Assembly according to Claim 5, in which:
    - the straight blade (38) comprises at least one recess (146) cut into its periphery,
    - the lock comprises
    • a conduit (240-242),
    • a lug (244-245) mounted inside the conduit and having a front part, this lug being able to move between:
    - a position of retaining the key inside the lock, in which, when the key is in its withdrawn position, its front part is received inside the recess of the key such that the key is held, counter to the force exerted by the group of one or more springs, inside the channel of the lock by cooperation of shapes between the recess of the blade and the front part of the lug, and
    - a retracted position in which its front part is pushed back in the direction of the interior of the conduit (240-242) and out of the recess of the key so as to allow the key to be removed from the lock, and
    • return means (260) which always urge the lug in the direction of its retaining position.
  7. Assembly according to Claim 6, in which the width of the recess (146), in a direction parallel to the axis of introduction of the key, is sufficient to receive the front part of the lug both in the inserted position of the key and in the withdrawn position.
  8. Assembly according to Claim 6 or 7, in which
    - the straight channel of the shell comprises a circular track (250) centred on the axis of introduction of the key and a notch (252-254) cut into this circular track,
    - the lock comprises a ring (200) received inside the straight channel and mounted so as to be able to rotate freely about the axis of introduction of the key, this ring comprising the conduit and a straight trench (202) that extends along the axis of introduction of the key, wherein the blade of the key passes through this straight trench when the key is introduced into the channel, and this straight trench is able to cooperate with the blade, by cooperation of shapes, so as to make the ring rotate about the axis of introduction of the key when the blade is turned about this same axis,
    - the conduit (240-242) comprises a front end that opens into the straight trench and a rear end which opens onto the circular track,
    - the front part of the lug is oriented towards the straight trench and the lug (244-245) has a rear part oriented towards the circular track, this lug being able to move between:
    • a position of retaining the key inside the lock, in which, when the key is in its inserted position, its front part is received inside the recess of the key and its rear part presses against the circular track (250) so as to prevent removal of the key from the lock by cooperation of shapes between the recess of the blade and the front part of the lug, and
    • the retracted position in which its front part is pushed back in the direction of the interior of the conduit (240-242) and out of the recess of the key and its rear part is received inside the notch (252-254) so as to allow the key to be removed from the lock only when the rear part of the lug is aligned with this notch.
EP18194663.3A 2017-10-27 2018-09-14 Assembly comprising an electronic lock and an electronic key Active EP3477027B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1760198A FR3072991B1 (en) 2017-10-27 2017-10-27 ASSEMBLY COMPRISING AN ELECTRONIC LOCK AND AN ELECTRONIC KEY

Publications (2)

Publication Number Publication Date
EP3477027A1 EP3477027A1 (en) 2019-05-01
EP3477027B1 true EP3477027B1 (en) 2019-09-04

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ID=61187430

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18194663.3A Active EP3477027B1 (en) 2017-10-27 2018-09-14 Assembly comprising an electronic lock and an electronic key

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EP (1) EP3477027B1 (en)
FR (1) FR3072991B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN118431833B (en) * 2024-07-05 2024-08-30 武汉德泰纳新能源技术有限公司 New energy automobile socket electronic lock that charges

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1974953A (en) * 1933-04-29 1934-09-25 David E Evans Self-ejecting key
US3217114A (en) * 1964-06-08 1965-11-09 W M Schwarz Key ejector apparatus for ignition switch
US3430469A (en) * 1967-07-19 1969-03-04 Bernie M Baxter Key ejector
KR870000849B1 (en) * 1985-03-25 1987-04-25 두성정밀산업 주식회사 An electronic door key
ES2010274A6 (en) * 1988-06-01 1989-11-01 Talleres Escoriaza Sa Electronic locking device
US6041628A (en) * 1999-08-13 2000-03-28 Hua Ye Lin Magnetic key lock assembly
FR3048991B1 (en) * 2016-03-18 2020-12-25 Cogelec SET FOR UNLOCKING A ROOM ACCESS DOOR

Non-Patent Citations (1)

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Title
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FR3072991A1 (en) 2019-05-03
FR3072991B1 (en) 2019-10-11
EP3477027A1 (en) 2019-05-01

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