EP0294276B1 - Disc combination lock with automatic scrambling on closing - Google Patents

Disc combination lock with automatic scrambling on closing Download PDF

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Publication number
EP0294276B1
EP0294276B1 EP19880401283 EP88401283A EP0294276B1 EP 0294276 B1 EP0294276 B1 EP 0294276B1 EP 19880401283 EP19880401283 EP 19880401283 EP 88401283 A EP88401283 A EP 88401283A EP 0294276 B1 EP0294276 B1 EP 0294276B1
Authority
EP
European Patent Office
Prior art keywords
bolt
disc
lock
finger
combination
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.)
Expired - Lifetime
Application number
EP19880401283
Other languages
German (de)
French (fr)
Other versions
EP0294276A1 (en
Inventor
Serge Deswarte
Etienne Decayeux
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.)
Decayeux SAS
Original Assignee
Decayeux SAS
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Decayeux SAS filed Critical Decayeux SAS
Priority to AT88401283T priority Critical patent/ATE82356T1/en
Publication of EP0294276A1 publication Critical patent/EP0294276A1/en
Application granted granted Critical
Publication of EP0294276B1 publication Critical patent/EP0294276B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B37/00—Permutation or combination locks; Puzzle locks
    • E05B37/08—Permutation or combination locks; Puzzle locks with tumbler discs on a single axis, all the discs being adjustable by a rotary knob which is not shifted for adjusting the discs
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B37/00—Permutation or combination locks; Puzzle locks
    • E05B37/0075—Automatic scrambling
    • E05B37/0082—Automatic scrambling when locking
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B37/00—Permutation or combination locks; Puzzle locks
    • E05B37/0075—Automatic scrambling
    • E05B37/0089—Automatic scrambling when the wing is closed
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B63/00—Locks or fastenings with special structural characteristics
    • E05B63/18—Locks or fastenings with special structural characteristics with arrangements independent of the locking mechanism for retaining the bolt or latch in the retracted position
    • E05B63/20—Locks or fastenings with special structural characteristics with arrangements independent of the locking mechanism for retaining the bolt or latch in the retracted position released automatically when the wing is closed
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7153—Combination
    • Y10T70/7181—Tumbler type
    • Y10T70/7198—Single tumbler set
    • Y10T70/7237—Rotary or swinging tumblers
    • Y10T70/7243—Interset tumblers
    • Y10T70/7249—Tumblers released
    • Y10T70/7254—Fence held spaced from tumblers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7153—Combination
    • Y10T70/7316—Combination upsetting

Definitions

  • the invention relates to a lock according to the preamble of claim 1.
  • a lock of this type is known in particular from document US-A-4,147,045 and functions satisfactorily. However, it reveals some drawbacks in use.
  • the bolt is necessarily kept in the retracted position by the user who immobilizes the means for operating the drive disc, for example an operating handle. Since the means of traction of the bolt cooperate with the drive disc, they are trapped in it and effectively retain the bolt in the retracted position.
  • the authorized user can imagine blocking the operating handle by any appropriate means to prevent the subsequent closing of the lock and thus avoid having to redo the coded combination, the next time he accesses the door.
  • the problem which the invention aims to solve is therefore to separate the operating handle from the bolt once the lock has been opened.
  • FIGS. 2a, 3a, 4a represent only the parts of the lock located at the bottom in the lock box, while FIGS. 2b, 3b, 4b represent only the other parts located more outside in the locker.
  • the lock shown in the figures comprises a rectangular box 1 consisting of a bottom 2 and four side walls 3, 4, 5, 6. As shown in the figures, the box is oriented in use so that its bottom 2 and its two opposite side walls 3, 5 are vertical.
  • the vertical wall 3 comprises two rectangular openings 7, 8 arranged one next to the other and extending vertically.
  • the bottom 2 has, in three of its corners, a hole 9, 10, 11 for attachment to a door, and, in its central part, a hole 12. It also has a plurality of pillars 13 to 19 s 'extending perpendicularly and several pins 20 to 22, the pillar 19 having at its base a flange 19a.
  • a back and forth 30 comprises a plate folded in an L shape so as to define two vertical sides 31, 32.
  • the pan 31 has two oblong holes 33, 34 placed side by side and extending vertically, the dimensions of which are adapted to receive respectively the pillar 13 and the flange 19a of the pillar 19 of the trunk 1, a finger 35 extending horizontally in the plane of the pan 31 from its edge opposite the other pan 32, a lower notch 36 close to the fold of the reciprocating 30, and an upper notch 37.
  • the pan 31 of the reciprocating 30 still has a finger 38 perpendicular and arranged above and to the right of the oblong hole 33.
  • a projection 41 carried by the pan 31 forms, with the pan 32, a yoke receiving a horizontal axis 42 and parallel to the pan 31.
  • a movable wedge 45 and a helical spring 43 are mounted side by side on the axis 42 ( Figures 1 a and 5).
  • the spring 43 is supported by one end on the pan 31 and by the other end on a shoulder 46 projecting laterally, provided on the movable wedge 45.
  • the movable wedge 45 carries a recess 47 opening both on its upper face and on its lateral face opposite the shoulder 46, which is intended to cooperate with an abutment pin 44 projecting perpendicularly on the pan 32.
  • the movable wedge 45 is therefore resiliently returned to a horizontal position in which it abuts against the stop pin 44, but it can be pushed down so as to pivot clockwise (FIG. 5) over at least a certain angle.
  • the back-and-forth 30 is intended to be pressed against the bottom 2 of the trunk 1 by means of a spacer 39 in the form of a cylinder mounted on the pillar 19 and the outside diameter of which is greater than the width of the oblong hole 34.
  • the spacer 39 is fixed by a screw 40 cooperating with a tapping of the pillar 19.
  • the back-and-forth 30 bears against the two pins 21, 22 of the trunk 1, so that it can only carry out one movement of vertical translation between a high position (FIG. 2a) and a low position (FIG. 3a) in each of which one end of the oblong holes 33, 34 abuts respectively against the pillar 13 and against the flange 19a of the pillar 19.
  • An L-shaped rocker 50 disposed in a vertical plane has two holes 51, 52, a perpendicular finger 53 disposed at the bottom of the rocker 50, and a perpendicular projection 54.
  • a pusher 55 has an extra thickness 56 at one end, a rounded 57 facing down at the opposite end, and a hole 58 in a central region.
  • a pin 59 passes through the hole 58 of the pusher 55 and the hole 51 of the rocker 50.
  • the rocker 50 is rotatably mounted through its hole 52 on the pillar 17 of the trunk 1, between a straight position ( Figure 3a) and an inclined position ( Figure 2a). It is elastically recalled in the straight position by a helical spring 60 mounted on the pillar 15 and one end of which bears on the pillar 18 of the trunk and the other end on a side wall of the rocker 50.
  • the rotation of the rocker 50 in the direction timetable is limited by the stud 20 against which the upper part of the rocker abuts; its counterclockwise rotation is limited by the side wall 3 of the trunk 1.
  • the pusher passes, through its rounded end 57, the lumen 7 in all the angular positions of the rocker 50. It can pivot relative to the rocker 50, around the pin 59. Due to the presence of its extra thickness 56, the power 55 tends to rotate clockwise under the effect of gravity. Its rotation in the counterclockwise direction is limited only by the upper part of the side wall 3 of the trunk, against which its extra thickness 56 will abut. Its clockwise rotation is limited either by the projection 54 of the rocker 50 against which it abuts when the rocker is in vertical position ( Figure 3a), or by the upper edge of the light 7 against which it abuts when the rocker 50 is in the inclined position (FIG. 2a).
  • a bolt 70 in the general shape of a coated L has a parallelepipedal front end 71 intended to pass through the lumen 8 of the boot 1 to cooperate with a rod operating device described below. It has a stop face in the extended position 72 and a stop face in the retracted position 73 which are vertical and turned towards the parallelepiped end 71, and a stop face 74 inclined and turned towards its rear end which is intended to cooperate with the finger 38 of the back and forth 30.
  • the bolt 70 On its main face facing outwards from the boot 1, the bolt 70 carries two studs 75, 76 near the front end 71 and a stud 77 near the rear end. On its main face opposite to this, it carries a rear stud 78 arranged lower and further back than the stud 77 (FIG. 2b), and a vertical shoulder 79 thanks to which the rear part of the bolt 70 is thinner than its front part ( Figures 8 and 9).
  • a jamming finger 80 has a hole 82 through which it is pivotally mounted on the stud 78 of the bolt 70 while being turned towards the front end 71 of the bolt.
  • the jamming finger 80 On its main face facing the bottom of the trunk 1 and in its upper part, the jamming finger 80 has a projecting shoulder 81 extending horizontally.
  • a traction hook 90 has at one end a hole 93 and, at the opposite end, and on its main face facing the bottom of the trunk 1 a protruding shoulder 91 extending along a curved line, as shown in Figures 4b and 9.
  • This hook is pivotally mounted on the stud 76 of the bolt 70, so as to be turned towards the rear of the bolt and with the interposition of a spacer washer 92 whose thickness corresponds to that of l shoulder 91 of the traction hook 90.
  • a release finger 94 has a hole 95 through which it is pivotally mounted on the stud 77 of the bolt 70.
  • a spacer washer 96 is also mounted on the stud 77 so as to cover the release finger 94.
  • a leaf spring 85 in general V shape comprises two branches, one of which is deformed so as to constitute a clamp 86 intended to surround the pillar 14 of the trunk 1.
  • a spacer sleeve 97 has a shoulder returning at its two ends, one being received in the hole 11 in the bottom of the trunk 1 and the other receiving a helical spring 98.
  • the bolt 70 equipped with the jamming finger 80, the traction hook 90 and the release finger 94, is arranged in the boot 1, in front of the back and forth 30 and the rocker 50. These parts are visible in the figure 8, where it is observed that the shoulder 79 of the bolt 70 advantageously makes it possible to partially house the jamming finger 80.
  • the bolt 70 can be moved in translation in the trunk 1 between an extended position ( Figure 2b) and a retracted position ( Figure 3b). In these two positions, its front end 71 is supported on the lower edge of the lumen 8 of the trunk 1. Furthermore, the leaf spring 85 is supported by one of its branches on the side wall 4 of the trunk, and by the other on the stud 75 of the bolt 70, so that the bolt 70 is resiliently returned to its extended position. As specified below, the rear part of the bolt is supported by a slot 191 of a cover plate 190 of the lock. In addition, in the retracted position of the bolt 70, the helical spring 98 is supported by one of its ends on the side wall 5 of the trunk, and by the other end on the release finger 94 and tends to pivot the latter in clockwise.
  • the bolt 70 In the extended position, the bolt 70 abuts on its abutment face 72 against the side wall 3 of the trunk.
  • the back and forth 30 is in the high position and the movable wedge 45 which it carries is then located behind the rear end of the bolt 70: it follows that the bolt 70 cannot be pushed manually to its retracted position because it would abut against the movable wedge 45.
  • the bolt 70 can be retracted at most until it stops at its rear end against the spacer sleeve 97.
  • the lock comprises several combination discs 100 which are hollowed out (FIGS. 1 and 2a), which are open in a radial slot 101 and which carry a notch 102 on their radially outer edge; one of the ends 103 of the notch is connected to the outer edge of the disc according to a radius intended to cooperate with the finger 38 of the to-and-fro 30.
  • each combination disc In line with the slot 101, each combination disc has a hole 104 allowing its spacing by means of a key.
  • Cores 110 hollowed out, the outside diameter of which is slightly greater than the inside diameter of the combination discs can thus be resiliently mounted therein.
  • Each core carries on one face a finger 111 parallel to the axis of the core and on the other face an annular flange 112 itself carrying a finger 113 extending radially outward.
  • the lock comprises hollow secondary drive disks 120, carrying on their radially inner edge a notch 121 and, opposite the latter, a finger 122 extending parallel to the axis some discs.
  • a main drive disc 130 is provided (FIGS. 1 and 3b) consisting of two permanently attached discs 140, 150 and of different outside diameters, the disc 140 of smaller diameter having a cutout 141 flaring and emerging towards its radially outer edge, the disc 150 having a similar cutout 151 arranged in line with the cutout 141, and the bottom 152 of which extends peripherally in an arc of a circle of radius equal to the radius of the other disc 140.
  • the cutout 151 extends over an angular portion greater than that along which cutout 141 extends.
  • the disc 140 carries a circular central excess thickness 142 and the disc 150 carries a finger 153 parallel to its axis.
  • the main drive disc 130 as a whole has a through hole 131 of square section.
  • a hollow disc-spacer 160 has, seen in plan, an external shape and dimension identical to those of the disc 150, therefore in particular a cutout 161. It also has a light 162 extending in a portion of a circle defined by a sector slightly greater than that along which the cutout 151 of the disc 150 extends.
  • Spacer plates 170 known in themselves are interposed between the combination discs 100 and the secondary drive discs 120 on the one hand, and between the spacer disc 160 and the neighboring secondary drive disc 120. Some have bosses 171 distributed peripherally and intended to bear on the neighboring spacer plate or on the spacer disc 160. Each spacer plate has two lower holes 172 intended to be crossed by the pillars 15, 16 of the trunk 1 and a hole 173 at mid-height placed opposite the holes 104 of the combination discs 100.
  • the combination discs 100, the cores 110, the main drive discs 130 and secondary drives 120 and the spacers 170 are fitted onto the pillar 13 of the trunk 1, with the prior insertion of a washer 180.
  • a cover plate 190 keeps all the parts of the lock pressed against one another in the trunk 1. It is held by screwing on the three pillars 14 to 16 of the trunk. She has a horizontal slot 191 in its upper right part, which is intended to guide and support the stud 77 of the bolt 70 during the translational movement of the latter.
  • the lock as a whole is fixed to a door wall 200 by means of threaded pillars 201 integral with this wall, one of them passing through the spacer sleeve 97, these pillars cooperating with nuts 202.
  • a control wheel 210 of the lock has a cylindrical graduated surface 211 circumferentially and a square section rod 212 passing through the door wall 200 to cooperate with the square hole 131 of the main drive disc 130.
  • a cylindrical housing 220 is arranged to receive and hide the part graduated 211 of the control wheel 210. It has a notch 221 in its upper part allowing the observation of the graduated surface 211 by only the user of the lock and the positioning of the wheel 210 opposite a mark 222.
  • the housing 220 is fixed by suitable means to the door wall 200, and the thumbwheel 210 is coupled to the housing 220 by suitable means so as to allow only one rotation d e the wheel relative to the housing.
  • the wheel 210 In operation, when the wheel 210 is turned clockwise, it drives the main drive disc 130. At a given moment of this rotation, the finger 153 of the main drive disc 130 abuts against one end 163 of the light 162 of the spacer disc 160 and then drives the latter in rotation.
  • the arrangement is such that the notches 151 and 161 of the respective discs 130, 160 then occupy the same angular position.
  • the finger 153 of the main drive disc 130 abuts against the finger 122 of the secondary drive disc 120, which starts to rotate.
  • the notch 121 of this disc abuts, at one end, against the radial finger 113 of the adjacent core 110, the latter rotates in turn.
  • the axial finger 111 of the core 110 drives the adjacent secondary drive disk 120, which drives the adjacent core 110.
  • the combination discs 100 being integral with the cores 110, they rotate, so that the angular position of their notch 102 is modified.
  • a door closing mechanism is mounted on the wall of the door, next to the trunk 1 of the lock.
  • this mechanism comprises a keeper 230 extending substantially in the plane of the lock, which has a closed end 231 of L provided with a rectangular opening 232 intended to receive the end 71 of the bolt 70, and another end also provided with a rectangular opening 233.
  • This keeper is pivotally mounted in its plane on an axis 234.
  • axis 234 are pivotally mounted by one end around two axes 241, 251, two rods 240, 250 extending respectively upwards and downwards and intended to cooperate with strikes provided in a doorframe.
  • An L-shaped vertical angle 260 carries on a branch a pin 261 arranged to move in the opening 233 of the keeper 230, and on another branch two horizontal bolts 262, 263 arranged one below the other and arranged to cooperate with two corresponding strikes provided on the door frame.
  • a handle 270 makes it possible to drive the keeper 230 in rotation.
  • the rotation of the handle 270 in the direction of the arrow 271 makes it possible to drive the rods 240, 250 and the bolts 262, 263 according to the arrows 272 in order to separate them from the strikes with which they cooperate, and the rotation of the handle in the opposite direction has the effect of causing them to enter the keepers.
  • the L-shaped end 231 of the keeper 230 carries a screw 235 perpendicular and projecting outwards which is immobilized by a nut 236.
  • the back and forth is therefore in the high position so that the movable wedge 45 is located behind the bolt 70, preventing the latter from being pushed back towards the inside of the lock.
  • the jamming finger 80 rests, by its shoulder 81, on the pan 31 of the back-and-forth movement 30.
  • the combination discs 100 are in a random angular position.
  • the traction hook 90 rests by its shoulder 91 on the finger 38 of the back-and-forth 30, and is therefore maintained in a high position not allowing it to enter the notch 141 of the drive disc 130.
  • rocker 50 is supported by his finger 53 under the bolt 70 (FIG. 2a) and is therefore kept in an inclined position, so that the pusher 55 is almost completely retracted into the lock and is not in contact with the screw. 235 carried by the keeper 230.
  • the traction hook 90 has pivoted under the effect of gravity until it stops at the bottom of the notch 141 of the main drive disc 130: it will in fact be noted that, in FIG. 4b, the hook pull 90 is no longer supported by the finger 38 of the back and forth 30.
  • the lock is ready to be opened: it suffices to continue turning the wheel 210 clockwise to drive the traction hook 90 to the right, and therefore to retract the bolt 70.
  • the progressive re-entry of the bolt 70 has three successive effects: on the one hand, the jamming finger 80 moves back, its free end sliding on the edge of the combination discs 100 until it falls into the notch 102 thereof; on the other hand, the finger 53 of the rocker 50 "falls" into the shoulder of the bolt 70 defined by the abutment face 73 since this finger rubs against the bolt while being resiliently biased in counterclockwise rotation; finally, since the traction hook moves to the right (FIG. 4b), it pushes the release finger 94 against the effect of the spring 98.
  • the keeper 230 can be turned clockwise ( Figures 3a, 3b) from a horizontal position ( Figure 10) using the handle 270. Indeed, on the one hand the bolt 70 does no longer passes through the opening 232 of the keeper 230; on the other hand the screw 235 of the striker abuts, in its rotation, against the pusher 55 which retracts by pivoting counterclockwise. The door is then opened.
  • the handle 270 is turned and therefore the keeper 230 clockwise.
  • the screw 235 therefore abuts on the rounded end 57 of the pusher 55.
  • the latter cannot pivot clockwise since it rests on the projection 54 of the rocker 50, so that the rocker is pushed clockwise, against the effect of the spring 60.
  • the finger 53 of the rocker 50 emerges from the abutment face 73 of the bolt 70: the bolt is then instantly pushed towards its extended position by the leaf spring 85.
  • the jamming finger 80 When the bolt 70 exits, the jamming finger 80 is driven to the left of FIG. 3a, so that it pushes the combination discs 100, which perform a random rotation by a certain angle. In practice, it has been observed that the different combination discs do not travel exactly the same way, so that their notches 102 are no longer aligned.
  • the combination discs 100 are driven in anti-clockwise rotation, they push back, thanks to the rounded end 103 of their notch 102, the finger 38 of the back and forth 30 towards its high position. Furthermore, the traction hook 90 moving away from the release finger 94, it is no longer supported by the latter and comes into abutment on the finger 38 of the back-and-forth 30.
  • the traction hook 90 would remain in the notch 141 of the drive disc 130 after opening the lock, which would allow the informed user, by immobilizing the thumb wheel 210, to prevent the automatic exit of the bolt 70 when the door is closed. This would result in the lock not being closed and the combination discs 100 not being scrambled. In practice, it is therefore preferable to provide a release finger 94.
  • the modification of the coded combination of the lock is carried out by introducing a key or rod through the rear of the lock passing through the hole 12 of the trunk 1, the holes 104 of the combination discs 100, and the holes 173 of the spacing plates 170.
  • the combination discs are then spaced apart, and their cores 110 can be moved in rotation by maneuvering the thumb wheel 210.
  • the finger 35 of the back and forth 30 advantageously rests on the key during this operation since it is located to the right of the hole 12 of the trunk 1 (FIG. 2a): the back-and-forth 30 is therefore held in the high position, so that the traction hook 90 is moved away from the drive disc 130 which can rotate freely.
  • the means for unlocking the bolt in the retracted position for example a pusher, are arranged to cooperate with the fixed strike.
  • FIG. 11 representing a variant of a lock including all the elements of the first lock, and where the unchanged elements bear the same references as in the first lock, illustrates the state of the lock after it has been opened but before the user has released the thumbwheel 210 (fig. 1 b).
  • the traction hook 90 is held captive in the notch 1410 of the main drive disc 1300.
  • the release finger 94 rests on the traction hook 90, it cannot rotate it counterclockwise. This is what allows an informed user to prevent the automatic exit of the bolt 70 when the door is closed and thus to prohibit the closing of the lock and the jamming of the combination discs.
  • the lock shown in Figures 11 and 12 is arranged to require the user to release the thumbwheel 210 before the door can be opened.
  • the main drive disc 1300 has, like that 130 of the previous lock, two discs joined 1400, 1500 and it differs in that its disc 1400 has a second notch 1420 in the form of V, delimited by two sides 1421,1422 .
  • An T-shaped auxiliary bolt 700 is provided, comprising a leg 701 and two arms 702.703, one of which 703 is extended by a finger 704 of narrower width, rounded at its end.
  • the auxiliary bolt 700 is mounted in the lock, against the face of the bolt 70 facing outwards from the lock. Its arm 702 passes through a light 800 formed in the trunk 1000, below the light 8. Its arm 703 is guided between the base of the traction hook 90 and the pillar 15. Its leg 701, facing the side wall 4 of the trunk 1000, extends between the side wall 3 and the base of the traction hook 90. Thus, the bolt auxiliary 700 can slide in a direction parallel to the sliding direction of the bolt 70.
  • a helical spring 1600 is mounted on the pillar 14 and comprises two branches 1601, 1602 one of which rests on the side wall 4 of the trunk 1000 and the other on a side face of the leg 701 of the auxiliary bolt 700, turned towards the side wall 3 of the boot 1000, so that the auxiliary bolt is returned to a retracted position.
  • the finger 704 of the auxiliary bolt is supported on the lateral face of the disc 1400.
  • the finger 704 is supported on the non-notched part of the lateral surface of the disc 1400, so that the arm 702 of the auxiliary bolt 700 extends outside the trunk 1000 beyond the bolt 70, until passing through a light 2321 formed in the strike 2300 , below the light 2320 intended to receive the bolt 70. Under these conditions, the user cannot open the door.

Landscapes

  • Lock And Its Accessories (AREA)
  • Feeding And Guiding Record Carriers (AREA)
  • Supporting Of Heads In Record-Carrier Devices (AREA)
  • Holding Or Fastening Of Disk On Rotational Shaft (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Preventing Unauthorised Actuation Of Valves (AREA)

Abstract

The invention relates to a lock comprising notched combination discs, a bolt (70) which is movable in translational motion and returned towards its exit position and which can be displaced only when a coded combination has been executed as a result of a rotation of the combination discs, and means (90, 130) for driving the bolt towards its entry position. <??>According to the invention, the lock comprises means (53) for locking the bolt in its entry position, means (94, 98) for making said bolt-driving means (90, 130) inoperative when the bolt is in the entry position, and means (235) for releasing the bolt, once the door has been opened and then reclosed. <??>The invention is used on high-security locks. <IMAGE>

Description

L'invention concerne une serrure conforme au préambule de la revendication 1.The invention relates to a lock according to the preamble of claim 1.

Une serrure de ce type est notamment connue par le document US-A-4 147 045 et fonctionne de façon satisfaisante. Toutefois elle révèle à l'usage quelques inconvénients.A lock of this type is known in particular from document US-A-4,147,045 and functions satisfactorily. However, it reveals some drawbacks in use.

Dans une telle serrure, le pêne est nécessairement maintenu en position rentrée par l'utilisateur qui immobilise les moyens de manœuvre du disque d'entraînement, par exemple une poignée de manoeuvre. Puisque les moyens de traction du pêne coopèrent avec le disque d'entraînement, ils sont prisonniers de celui-ci et retiennent effectivement le pêne en position rentrée.In such a lock, the bolt is necessarily kept in the retracted position by the user who immobilizes the means for operating the drive disc, for example an operating handle. Since the means of traction of the bolt cooperate with the drive disc, they are trapped in it and effectively retain the bolt in the retracted position.

A ce stade, l'utilisateur autorisé peut imaginer de bloquer la poignée de manoeuvre par tout moyen approprié pour empêcher la fermeture subséquente de la serrure et s'éviter ainsi d'avoir à refaire la combinaison codée, la prochaine fois qu'il accèdera à la porte.At this stage, the authorized user can imagine blocking the operating handle by any appropriate means to prevent the subsequent closing of the lock and thus avoid having to redo the coded combination, the next time he accesses the door.

De plus, lorsqu'il est prévu un doigt de brouillage du disque de combinaison, monté sur le pêne et destiné à percuter le disque de combinaison lors de la sortie du pêne, l'utilisateur peut chercher à neutraliser partiellement l'effet du brouillage en freinant le mouvement de la poignée de manoeuvre lorsqu'elle retourne à une position angulaire correspondant à la fermeture de la porte, c'est-à-dire en freinant le mouvement des moyens de traction du pêne.In addition, when a scrambling finger of the combination disc is fitted, mounted on the bolt and intended to strike the combination disc when the bolt comes out, the user can seek to partially neutralize the effect of scrambling. braking the movement of the operating handle when it returns to an angular position corresponding to the closing of the door, that is to say by braking the movement of the means of traction of the bolt.

Le problème que vise à résoudre l'invention est donc de désolidariser la poignée de manoeuvre, du pêne une fois que la serrure a été ouverte.The problem which the invention aims to solve is therefore to separate the operating handle from the bolt once the lock has been opened.

Ce problème est résolu conformément à la partie caractérisante de la revendication 1. Ainsi, puisque le pêne est automatiquement verrouillé dans sa position rentrée, l'utilisateur relâche en pratique la poignée de manœuvre dès qu'il a ramené le pêne dans cette position, notamment pour pouvoir actionner plus aisément ladite tringlerie. Les moyens prévus pour écarter du disque d'entraînement les moyens de traction du pêne entrent alors en action, ce qui exclut dès lors toute possibilité pour l'utilisateur de retenir le pêne en position rentrée ou de le freiner durant son retour ultérieur en position sortie.This problem is solved in accordance with the characterizing part of claim 1. Thus, since the bolt is automatically locked in its retracted position, the user in practice releases the operating handle as soon as he has returned the bolt to this position, in particular to be able to actuate said linkage more easily. The means provided for moving the traction means of the bolt away from the drive disc then come into action, which therefore excludes any possibility for the user to retain the bolt in the retracted position or to brake it during its subsequent return to the extended position. .

Après refermeture de la porte, les moyens de déverrouillage du pêne produisent son retour automatique en position sortie.

  • La description qui suit est relative à une forme de réalisation préférée mais non limitative, en regard des dessins annexés.
  • La figure 1 a est une vue en perspective éclatée d'une première partie de la serrure.
  • La figure 1 est une vue en perspective éclatée d'une seconde partie de la serrure.
  • Les figures 2a et 2b sont des vues en plan de la serrure en position fermée.
  • Les figures 3a et 3b sont des vues correspondant aux figures 2a, 2b alors que la serrure est en position ouverte.
  • Les figures 4a et 4b sont des vues correspondant aux figures 2a, 2b alors que la combinaison permettant l'ouverture de la serrure a été effectuée.
  • Les figures 5 à 7 sont des vues transversales selon les lignes V-V, VI-VI, VII-VII des figures 2a ou 2b.
  • La figure 8 est une vue de dessus représentant les pièces visibles sur les figures 2a ou 2b.
  • La figure 9 est une vue en perspective du pêne, du crochet de traction et du brouilleur, observés depuis leur face non visible sur la figure 1 a.
  • La figure 10 est une vue en perspective de la serrure coopérant avec un mécanisme de fermeture de porte à tringles.
  • Les figures 11 et 12 sont des vues en plan d'une variante de la serrure, dans deux positions de fonctionnement différentes, et
  • la figure 13 est une vue en perspective d'un pêne auxiliaire utilisé dans cette variante.
After closing the door, the bolt unlocking means produce its automatic return to the extended position.
  • The following description relates to a preferred but non-limiting embodiment, with reference to the accompanying drawings.
  • Figure 1a is an exploded perspective view of a first part of the lock.
  • Figure 1 is an exploded perspective view of a second part of the lock.
  • Figures 2a and 2b are plan views of the lock in the closed position.
  • Figures 3a and 3b are views corresponding to Figures 2a, 2b while the lock is in the open position.
  • Figures 4a and 4b are views corresponding to Figures 2a, 2b while the combination for opening the lock has been made.
  • Figures 5 to 7 are transverse views along lines VV, VI-VI, VII-VII of Figures 2a or 2b.
  • Figure 8 is a top view showing the parts visible in Figures 2a or 2b.
  • FIG. 9 is a perspective view of the bolt, the traction hook and the jammer, observed from their non-visible face in FIG. 1 a.
  • Figure 10 is a perspective view of the lock cooperating with a door closing mechanism with rods.
  • FIGS. 11 and 12 are plan views of a variant of the lock, in two different operating positions, and
  • Figure 13 is a perspective view of an auxiliary bolt used in this variant.

En vue de faciliter la compréhension, les figures 2a, 3a, 4a ne représentent que les pièces de la serrure situées les plus au fond dans le coffre de serrure, tandis que les figures 2b, 3b, 4b ne représentent que les autres pièces situées les plus à l'extérieur dans le coffre de serrure.In order to facilitate understanding, FIGS. 2a, 3a, 4a represent only the parts of the lock located at the bottom in the lock box, while FIGS. 2b, 3b, 4b represent only the other parts located more outside in the locker.

La serrure représentée sur les figures comprend un coffre 1 parallélépipédique constitué d'un fond 2 et de quatre parois latérales 3, 4, 5, 6. Comme représnté sur les figures, le coffre est orienté en utilisation de façon que son fond 2 et ses deux parois latérales 3, 5 opposées soient verticaux. La paroi verticale 3 comporte deux lumières rectangulaires 7, 8 disposées l'une à côté de l'autre et s'étendant verticalement.The lock shown in the figures comprises a rectangular box 1 consisting of a bottom 2 and four side walls 3, 4, 5, 6. As shown in the figures, the box is oriented in use so that its bottom 2 and its two opposite side walls 3, 5 are vertical. The vertical wall 3 comprises two rectangular openings 7, 8 arranged one next to the other and extending vertically.

Le fond 2 possède, dans trois de ses coins, un trou 9, 10, 11 en vue de sa fixation sur une porte, et, dans sa partie centrale, un trou 12. Il possède par ailleurs une pluralité de piliers 13 à 19 s'étendant perpendiculairement et plusieurs tétons 20 à 22, le pilier 19 présentant à sa base une collerette 19a.The bottom 2 has, in three of its corners, a hole 9, 10, 11 for attachment to a door, and, in its central part, a hole 12. It also has a plurality of pillars 13 to 19 s 'extending perpendicularly and several pins 20 to 22, the pillar 19 having at its base a flange 19a.

Un va-et-vient 30 comprend une plaque pliée en forme de L de façon à définir deux pans 31, 32 verticaux. Le pan 31 présente deux trous oblongs 33, 34 posés côte à côte et s'étendant verticalement, dont les dimensions sont adaptées pour recevoir respectivement le pilier 13 et la collerette 19a du pilier 19 du coffre 1, un doigt 35 s'étendant horizontalement dans le plan du pan 31 à partir de son bord opposé à l'autre pan 32, une entaille inférieure 36 voisine de la pliure du va-et-vient 30 , et une entaille supérieure 37. Le pan 31 du va-et-vient 30 comporte encore un doigt 38 perpendiculaire et disposé au-dessus et au droit du trou oblong 33.A back and forth 30 comprises a plate folded in an L shape so as to define two vertical sides 31, 32. The pan 31 has two oblong holes 33, 34 placed side by side and extending vertically, the dimensions of which are adapted to receive respectively the pillar 13 and the flange 19a of the pillar 19 of the trunk 1, a finger 35 extending horizontally in the plane of the pan 31 from its edge opposite the other pan 32, a lower notch 36 close to the fold of the reciprocating 30, and an upper notch 37. The pan 31 of the reciprocating 30 still has a finger 38 perpendicular and arranged above and to the right of the oblong hole 33.

Une saillie 41 portée par le pan 31 forme, avec le pan 32, une chape recevant un axe 42 horizontal et parallèle au pan 31. Une cale mobile 45 et un ressort hélicoïdal 43 sont montés côte à côte sur l'axe 42 (figures 1 a et 5). Le ressort 43 prend appui par une extrémité sur le pan 31 et par l'autre extrémité sur un épaulement 46 saillant latéralement, prévu sur la cale mobile 45.A projection 41 carried by the pan 31 forms, with the pan 32, a yoke receiving a horizontal axis 42 and parallel to the pan 31. A movable wedge 45 and a helical spring 43 are mounted side by side on the axis 42 (Figures 1 a and 5). The spring 43 is supported by one end on the pan 31 and by the other end on a shoulder 46 projecting laterally, provided on the movable wedge 45.

La cale mobile 45 porte un évidement 47 débouchant à la fois sur sa face supérieure et sur sa face latétale opposée à l'épaulement 46, qui est destiné à coopérer avec un pion de butée 44 saillant perpendiculairement sur le pan 32. La cale mobile 45 est donc rappelée élastiquement vers une position horizontale dans laquelle elle bute contre le pion de butée 44, mais elle peut être poussée vers le bas de façon à pivoter dans le sens horaire (figure 5) sur au moins un certain angle.The movable wedge 45 carries a recess 47 opening both on its upper face and on its lateral face opposite the shoulder 46, which is intended to cooperate with an abutment pin 44 projecting perpendicularly on the pan 32. The movable wedge 45 is therefore resiliently returned to a horizontal position in which it abuts against the stop pin 44, but it can be pushed down so as to pivot clockwise (FIG. 5) over at least a certain angle.

Le va-et-vient 30 est destiné à être plaqué sur le fond 2 du coffre 1 au moyen d'une entretoise 39 en forme de cylindre montée sur le pilier 19 et dont le diamètre extérieur est supérieur à la largeur du trou oblong 34. L'entretoise 39 est fixée par une vis 40 coopérant avec un taraudage du pilier 19. Le va-et-vient 30 prend appui contre les deux tétons 21, 22 du coffre 1, de sorte qu'il ne peut effectuer qu'un mouvement de translation vertical entre une position haute (figure 2a) et une position basse (figure 3a) dans chacune desquelles une extrémité des trous oblongs 33, 34 bute respectivement contre le pilier 13 et contre la collerette 19a du pilier 19.The back-and-forth 30 is intended to be pressed against the bottom 2 of the trunk 1 by means of a spacer 39 in the form of a cylinder mounted on the pillar 19 and the outside diameter of which is greater than the width of the oblong hole 34. The spacer 39 is fixed by a screw 40 cooperating with a tapping of the pillar 19. The back-and-forth 30 bears against the two pins 21, 22 of the trunk 1, so that it can only carry out one movement of vertical translation between a high position (FIG. 2a) and a low position (FIG. 3a) in each of which one end of the oblong holes 33, 34 abuts respectively against the pillar 13 and against the flange 19a of the pillar 19.

Un basculeur 50 en forme de L disposé dans un plan vertical présente deux trous 51, 52, un doigt 53 perpendiculaire disposé à la partie inférieure du basculeur 50, et une saillie perpendiculaire 54. Un poussoir 55 présente une surépaisseur 56 à une extrémité, un arrondi 57 tourné vers le bas à l'extrémité opposée, et un trou 58 dans une région centrale. Un pion 59 traverse le trou 58 du poussoir 55 et le trou 51 du basculeur 50.An L-shaped rocker 50 disposed in a vertical plane has two holes 51, 52, a perpendicular finger 53 disposed at the bottom of the rocker 50, and a perpendicular projection 54. A pusher 55 has an extra thickness 56 at one end, a rounded 57 facing down at the opposite end, and a hole 58 in a central region. A pin 59 passes through the hole 58 of the pusher 55 and the hole 51 of the rocker 50.

Le basculeur 50 est monté à rotation par son trou 52 sur le pilier 17 du coffre 1, entre une position droite (figure 3a) et une position inclinée (figure 2a). Il est rappelé élastiquement en position droite par un ressort hélicoïdal 60 monté sur le pilier 15 et dont une extrémité prend appui sur le pilier 18 du coffre et l'autre extrémité sur une paroi latérale du basculeur 50. La rotation du basculeur 50 dans le sens horaire est limitée par le téton 20 contre lequel vient buter la partie supérieure du basculeur ; sa rotation dans le sens anti-horaire est limitée par la paroi latérale 3 du coffre 1.The rocker 50 is rotatably mounted through its hole 52 on the pillar 17 of the trunk 1, between a straight position (Figure 3a) and an inclined position (Figure 2a). It is elastically recalled in the straight position by a helical spring 60 mounted on the pillar 15 and one end of which bears on the pillar 18 of the trunk and the other end on a side wall of the rocker 50. The rotation of the rocker 50 in the direction timetable is limited by the stud 20 against which the upper part of the rocker abuts; its counterclockwise rotation is limited by the side wall 3 of the trunk 1.

Le poussoir traverse, par son extrémité arrondie 57, la lumière 7 dans toutes les positions angulaires du basculeur 50. Il peut pivoter par rapport au basculeur 50, autour du pion 59. Du fait de la présence de sa surépaisseur 56, le pouvoir 55 tend à tourner dans le sens horaire sous l'effet de la gravité. Sa rotation dans le sens anti-horaire n'est limitée que par la partie supérieure de la paroi latérale 3 du coffre, contre laquelle sa surépaisseur 56 viendra buter. Sa rotation dans le sens horaire est limitée soit par la saillie 54 du basculeur 50 contre laquelle il vient buter lorsque le basculeur est en position verticale (figure 3a), soit par le bord supérieur de la lumière 7 contre lequel il vient buter lorsque le basculeur 50 est en position inclineé (figure 2a).The pusher passes, through its rounded end 57, the lumen 7 in all the angular positions of the rocker 50. It can pivot relative to the rocker 50, around the pin 59. Due to the presence of its extra thickness 56, the power 55 tends to rotate clockwise under the effect of gravity. Its rotation in the counterclockwise direction is limited only by the upper part of the side wall 3 of the trunk, against which its extra thickness 56 will abut. Its clockwise rotation is limited either by the projection 54 of the rocker 50 against which it abuts when the rocker is in vertical position (Figure 3a), or by the upper edge of the light 7 against which it abuts when the rocker 50 is in the inclined position (FIG. 2a).

Un pêne 70 en forme générale de L couché comporte une extrémité avant parallélépipédique 71 destinée à traverser la lumière 8 du coffre 1 pour coopérer avec un dispositif de manoeuvre de tringles décrit par la suite. Il présente une face de butée en position sortie 72 et une face de butée en position rentrée 73 qui sont verticales et tournées vers l'extrémité parallélépipédique 71, et une face de butée 74 inclinée et tournée vers son extrémité arrière qui est destinée à coopérer avec le doigt 38 du va-et-vient 30.A bolt 70 in the general shape of a coated L has a parallelepipedal front end 71 intended to pass through the lumen 8 of the boot 1 to cooperate with a rod operating device described below. It has a stop face in the extended position 72 and a stop face in the retracted position 73 which are vertical and turned towards the parallelepiped end 71, and a stop face 74 inclined and turned towards its rear end which is intended to cooperate with the finger 38 of the back and forth 30.

Sur sa face principale tournée vers l'extérieur du coffre 1, le pêne 70 porte deux tétons 75, 76 voisins de l'extrémité avant 71 et un téton 77 voisin de l'extrémité arrière. Sur sa face principale opposée à celle-ci, il porte un téton arrière 78 disposé plus bas et plus en arrière que le téton 77 (figure 2b), et un épaulement vertical 79 grâce auquel la partie arrière du pêne 70 est plus mince que sa partie avant (figures 8 et 9).On its main face facing outwards from the boot 1, the bolt 70 carries two studs 75, 76 near the front end 71 and a stud 77 near the rear end. On its main face opposite to this, it carries a rear stud 78 arranged lower and further back than the stud 77 (FIG. 2b), and a vertical shoulder 79 thanks to which the rear part of the bolt 70 is thinner than its front part (Figures 8 and 9).

Un doigt de brouillage 80 comporte un trou 82 par lequel il est monté à pivotement sur le téton 78 du pêne 70 en étant tourné vers l'extrémité avant 71 du pêne. Sur sa face principale tournée vers le fond du coffre 1 et dans sa partie supérieure, le doigt de brouillage 80 comporte un épaulement 81 saillant s'étendant horizontalement.A jamming finger 80 has a hole 82 through which it is pivotally mounted on the stud 78 of the bolt 70 while being turned towards the front end 71 of the bolt. On its main face facing the bottom of the trunk 1 and in its upper part, the jamming finger 80 has a projecting shoulder 81 extending horizontally.

Un crochet de traction 90 présente à une extrémité un trou 93 et, à l'extrémité opposée, et sur sa face principale tournée vers le fond du coffre 1 un épaulement 91 saillant s'étendant le long d'une ligne courbe, comme représenté sur les figures 4b et 9. Ce crochet est monté à pivotement sur le téton 76 du pêne 70, de façon à être tourné vers l'arrière du pêne et avec interposition d'une rondelle-entretoise 92 dont l'épaisseur correspond à celle de l'épaulement 91 du crochet de traction 90.A traction hook 90 has at one end a hole 93 and, at the opposite end, and on its main face facing the bottom of the trunk 1 a protruding shoulder 91 extending along a curved line, as shown in Figures 4b and 9. This hook is pivotally mounted on the stud 76 of the bolt 70, so as to be turned towards the rear of the bolt and with the interposition of a spacer washer 92 whose thickness corresponds to that of l shoulder 91 of the traction hook 90.

Un doigt de dégagement 94 présente un trou 95 par lequel il est monté à pivotement sur le téton 77 du pêne 70. Une rondelle-entretoise 96 est également montée sur le téton 77 de façon à coiffer le doigt de dégagement 94.A release finger 94 has a hole 95 through which it is pivotally mounted on the stud 77 of the bolt 70. A spacer washer 96 is also mounted on the stud 77 so as to cover the release finger 94.

Une lame-ressort 85 en forme générale de V comporte deux branches dont l'une est déformée de façon à constituer une pince 86 destinée à entourer le pilier 14 du coffre 1.A leaf spring 85 in general V shape comprises two branches, one of which is deformed so as to constitute a clamp 86 intended to surround the pillar 14 of the trunk 1.

Une douille-entretoise 97 présente un épaulement rentrant à ses deux extrémités, l'un étant reçu dans le trou 11 du fond du coffre 1 et l'autre recevant un ressort hélicoïdal 98.A spacer sleeve 97 has a shoulder returning at its two ends, one being received in the hole 11 in the bottom of the trunk 1 and the other receiving a helical spring 98.

Le pêne 70, équipé du doigt de brouillage 80, du crochet de traction 90 et du doigt de dégagement 94, est disposé dans le coffre 1, devant le va-et-vient 30 et le basculeur 50. Ces pièces sont visibles sur la figure 8, où l'on observe que l'épaulement 79 du pêne 70 permet avantageusement de loger partiellement le doigt de brouillage 80.The bolt 70, equipped with the jamming finger 80, the traction hook 90 and the release finger 94, is arranged in the boot 1, in front of the back and forth 30 and the rocker 50. These parts are visible in the figure 8, where it is observed that the shoulder 79 of the bolt 70 advantageously makes it possible to partially house the jamming finger 80.

Le pêne 70 peut être déplacé en translation dans le coffre 1 entre une position sortie (figure 2b) et une position rentrée (figure 3b). Dans ces deux positions, son extrémité avant 71 prend appui sur le bord inférieur de la lumière 8 du coffre 1. Par ailleurs, la lame-ressort 85 prend appui par une de ses branches sur la paroi latérale 4 du coffre, et par l'autre sur le téton 75 du pêne 70, de sorte que le pêne 70 est rappelé élastiquement vers sa position sortie. Comme précisé par la suite, la partie arrière du pêne est supportée par une lumière 191 d'une plaque de couverture 190 de la serrure. De plus, en position rentrée du pêne 70, le ressort hélicoïdal 98 prend appui par une de ses extrémités sur la paroi latérale 5 du coffre, et par l'autre extrémité sur le doigt de dégagement 94 et tend à faire pivoter celui-ci dans le sens horaire.The bolt 70 can be moved in translation in the trunk 1 between an extended position (Figure 2b) and a retracted position (Figure 3b). In these two positions, its front end 71 is supported on the lower edge of the lumen 8 of the trunk 1. Furthermore, the leaf spring 85 is supported by one of its branches on the side wall 4 of the trunk, and by the other on the stud 75 of the bolt 70, so that the bolt 70 is resiliently returned to its extended position. As specified below, the rear part of the bolt is supported by a slot 191 of a cover plate 190 of the lock. In addition, in the retracted position of the bolt 70, the helical spring 98 is supported by one of its ends on the side wall 5 of the trunk, and by the other end on the release finger 94 and tends to pivot the latter in clockwise.

En position sortie, le pêne 70 bute sur sa face de butée 72 contre la paroi latérale 3 du coffre. Avant que la combinaison de la serrure ait été réalisée en vue de son ouverture (figures 2a et 2b), et comme précisé par la suite, la va-et-vient 30 est en position haute et la cale mobile 45 qu'il porte est alors située derrière l'extrémité arrière du pêne 70 : il s'ensuit que le pêne 70 ne peut pas être poussé manuellement vers sa position rentrée car il buterait contre la cale mobile 45. En revanche, une fois la combinaison réalisée, le pêne 70 peut être rentré au plus jusqu'à buter par son extrémité arrière contre la douille-entretoise 97.In the extended position, the bolt 70 abuts on its abutment face 72 against the side wall 3 of the trunk. Before the combination of the lock has been made with a view to its opening (FIGS. 2a and 2b), and as explained below, the back and forth 30 is in the high position and the movable wedge 45 which it carries is then located behind the rear end of the bolt 70: it follows that the bolt 70 cannot be pushed manually to its retracted position because it would abut against the movable wedge 45. On the other hand, once the combination has been carried out, the bolt 70 can be retracted at most until it stops at its rear end against the spacer sleeve 97.

La serrure comporte plusieurs disques de combinaison 100 évidés (figures 1 et 2a), qui sont ouverts selon une fente radiale 101 et qui portent une encoche 102 sur leur bord radialement extérieur ; l'une des extrémités 103 de l'encoche se raccorde au bord extérieur du disque selon un rayon destiné destiné à coopérer avec le doigt 38 du va-et-vient 30. Au droit de la fente 101, chaque disque de combinaison présente un trou 104 permettant son écartement au moyen d'une clé. Des noyaux 110 évidés, dont le diamètre extérieur est un peu supérieur au diamètre intérieur des disques de combinaison peuvent ainsi être montés par élasticité dans ceux-ci. Chaque noyau porte sur une face un doigt 111 parallèle à l'axe du noyau et sur l'autre face un rebord annulaire 112 portant lui-même un doigt 113 s'étendant radialement vers l'extérieur.The lock comprises several combination discs 100 which are hollowed out (FIGS. 1 and 2a), which are open in a radial slot 101 and which carry a notch 102 on their radially outer edge; one of the ends 103 of the notch is connected to the outer edge of the disc according to a radius intended to cooperate with the finger 38 of the to-and-fro 30. In line with the slot 101, each combination disc has a hole 104 allowing its spacing by means of a key. Cores 110 hollowed out, the outside diameter of which is slightly greater than the inside diameter of the combination discs can thus be resiliently mounted therein. Each core carries on one face a finger 111 parallel to the axis of the core and on the other face an annular flange 112 itself carrying a finger 113 extending radially outward.

De façon également connue en soi, la serrure comporte des disques d'entraînement secondaires évidés 120, portant sur leur bord radialement intérieur une encoche 121 et, à l'opposé de celle-ci, un doigt 122 s'étendant parallèlement à l'axe des disques.In a manner also known per se, the lock comprises hollow secondary drive disks 120, carrying on their radially inner edge a notch 121 and, opposite the latter, a finger 122 extending parallel to the axis some discs.

Par ailleurs, il est prévu un disque d'entraînement principal 130 (figures 1 et 3b) constitué de deux disques accolés à demeure 140, 150 et de diamètres extérieurs différents, le disque 140 de plus petit diamètre présentant une découpe 141 s'évasant et débouchant vers son bord radialement extérieur, le disque 150 présentant une découpe analogue 151 disposée au droit de la découpe 141, et dont le fond 152 s'étend périphériquement selon un arc de cercle de rayon égal au rayon de l'autre disque 140. La découpe 151 s'étend sur une portion angulaire supérieure à celle selon laquelle s'étend la découpe 141. De plus, le disque 140 porte une surépaisseur centrale circulaire 142 et le disque 150 porte un doigt 153 parallèle à son axe. Enfin le disque d'entraînement principal 130 dans son ensemble comporte un trou traversant 131 de section carrée.Furthermore, a main drive disc 130 is provided (FIGS. 1 and 3b) consisting of two permanently attached discs 140, 150 and of different outside diameters, the disc 140 of smaller diameter having a cutout 141 flaring and emerging towards its radially outer edge, the disc 150 having a similar cutout 151 arranged in line with the cutout 141, and the bottom 152 of which extends peripherally in an arc of a circle of radius equal to the radius of the other disc 140. The cutout 151 extends over an angular portion greater than that along which cutout 141 extends. In addition, the disc 140 carries a circular central excess thickness 142 and the disc 150 carries a finger 153 parallel to its axis. Finally the main drive disc 130 as a whole has a through hole 131 of square section.

Un disque-entretoise 160 évidé présente, vu en plan, une forme et une dimension extérieures identiques à celles du disque 150, donc notamment une découpe 161. Il présente de plus une lumière 162 s'étendant selon une portion de cercle définie par un secteur angulaire un peu supérieur à celui selon lequel s'étend la découpe 151 du disque 150.A hollow disc-spacer 160 has, seen in plan, an external shape and dimension identical to those of the disc 150, therefore in particular a cutout 161. It also has a light 162 extending in a portion of a circle defined by a sector slightly greater than that along which the cutout 151 of the disc 150 extends.

Des plaquettes d'espacement 170 connues en elles-mêmes sont interposées entre les disques de combinaison 100 et les disques d'entraînement secondaires 120 d'une part, et entre le disque-entretoise 160 et le disque d'entraînement secondaire 120 voisin. Certaines comportent des bossages 171 répartis périphériquement et destinés à porter sur la plaquette d'espacement voisine ou sur le disque-entretoise 160. Chaque plaquette d'espacement comporte deux trous inférieurs 172 destinés à être traversés par les piliers 15, 16 du coffre 1 et un trou 173 à mi-hauteur disposé en regard des trous 104 des disques de combinaison 100.Spacer plates 170 known in themselves are interposed between the combination discs 100 and the secondary drive discs 120 on the one hand, and between the spacer disc 160 and the neighboring secondary drive disc 120. Some have bosses 171 distributed peripherally and intended to bear on the neighboring spacer plate or on the spacer disc 160. Each spacer plate has two lower holes 172 intended to be crossed by the pillars 15, 16 of the trunk 1 and a hole 173 at mid-height placed opposite the holes 104 of the combination discs 100.

Les disques de combinaison 100, les noyaux 110, les disques d'entraînement principal 130 et secondaires 120 et les plaquettes d'espacement 170 sont emmanchés sur le pilier 13 du coffre 1, avec interposition préalable d'une rondelle 180. Une plaque de couverture 190 maintient toutes les pièces de la serrure plaquées les unes contre les autres dans le coffre 1. Elle est maintenue par vissage sur les trois piliers 14 à 16 du coffre. Elle présente une lumière horizontale 191 dans sa partie supérieure droite, qui est destinée à guider et supporter le téton 77 du pêne 70 lors du déplacement en translation de ce dernier.The combination discs 100, the cores 110, the main drive discs 130 and secondary drives 120 and the spacers 170 are fitted onto the pillar 13 of the trunk 1, with the prior insertion of a washer 180. A cover plate 190 keeps all the parts of the lock pressed against one another in the trunk 1. It is held by screwing on the three pillars 14 to 16 of the trunk. She has a horizontal slot 191 in its upper right part, which is intended to guide and support the stud 77 of the bolt 70 during the translational movement of the latter.

La serrure dans son ensemble est fixée sur une paroi de porte 200 au moyen de piliers filetés 201 solidaires de cette paroi, l'un d'eux traversant la douille-entretoise 97, ces piliers coopérant avec des écrous 202. Une molette 210 de commande de la serrure comporte une surface cylindrique graduée 211 circonférentiellement et une tige de section carrée 212 traversant la paroi de porte 200 pour coopérer avec le trou carré 131 du disque d'entraînement principal 130. Un boîtier 220 cylindrique est agencé pour recevoir et masquer la partie graduée 211 de la molette de commande 210. Il comporte une encoche 221 dans sa partie supérieure permettant l'observation de la surface graduée 211 par seulement l'utilisateur de la serrure et le positionnement de la molette 210 en face d'un repère 222. Le boîtier 220 est fixé par des moyens appropriés sur la paroi de porte 200, et la molette 210 est attelée au boîtier 220 par des moyens appropriés pour n'autoriser qu'une rotation de la molette par rapport au boîtier.The lock as a whole is fixed to a door wall 200 by means of threaded pillars 201 integral with this wall, one of them passing through the spacer sleeve 97, these pillars cooperating with nuts 202. A control wheel 210 of the lock has a cylindrical graduated surface 211 circumferentially and a square section rod 212 passing through the door wall 200 to cooperate with the square hole 131 of the main drive disc 130. A cylindrical housing 220 is arranged to receive and hide the part graduated 211 of the control wheel 210. It has a notch 221 in its upper part allowing the observation of the graduated surface 211 by only the user of the lock and the positioning of the wheel 210 opposite a mark 222. The housing 220 is fixed by suitable means to the door wall 200, and the thumbwheel 210 is coupled to the housing 220 by suitable means so as to allow only one rotation d e the wheel relative to the housing.

En fonctionnement, lorsque l'on tourne la molette 210 dans le sens horaire, elle entraîne le disque d'entraînement principal 130. A un moment donné de cette rotation, le doigt 153 du disque d'entraînement principal 130 bute contre une extrémité 163 de la lumière 162 du disque-entretoise 160 et entraîne alors ce dernier en rotation. L'agencement est tel que les encoches 151 et 161 des disques respectifs 130, 160 occupent alors la même position angulaire.In operation, when the wheel 210 is turned clockwise, it drives the main drive disc 130. At a given moment of this rotation, the finger 153 of the main drive disc 130 abuts against one end 163 of the light 162 of the spacer disc 160 and then drives the latter in rotation. The arrangement is such that the notches 151 and 161 of the respective discs 130, 160 then occupy the same angular position.

Par contre, lorsque le disque d'entraînement principal 130 est tourné dans le sens anti-horaire, son doigt 153 vient buter contre l'autre extrémité 164 de la lumière 162 du disque-entretoise 160 et entraîne alors celui-ci en rotation (figure 2b) : l'agencement est tel que les encoches 151 et 161 des disques respectifs 130, 160 sont alors décalées angulairement, de sorte que l'encoche 151 est masquée par le disque-entretoise 160.On the other hand, when the main drive disc 130 is turned anti-clockwise, its finger 153 abuts against the other end 164 of the light 162 of the spacer disc 160 and then drives the latter in rotation (FIG. 2b): the arrangement is such that the notches 151 and 161 of the respective discs 130, 160 are then angularly offset, so that the notch 151 is masked by the spacer disc 160.

Par ailleurs, et de façon connue en soi, le doigt 153 du disque d'entraînement principal 130 vient buter contre le doigt 122 du disque d'entraînement secondaire 120, lequel se met à tourner. Lorsque l'encoche 121 de ce disque vient buter, par une extrémité, contre le doigt radial 113 du noyau 110 adjacent, celui-ci tourne à son tour. De la même façon, le doigt axial 111 du noyau 110 entraîne le disque d'entraînement secondaire 120 adjacent, lequel entraîne le noyau 110 adjacent. Les disques de combinaison 100 étant solidaires des noyaux 110, ils tournent, de sorte que la position angulaire de leur encoche 102 est modifiée.Furthermore, and in a manner known per se, the finger 153 of the main drive disc 130 abuts against the finger 122 of the secondary drive disc 120, which starts to rotate. When the notch 121 of this disc abuts, at one end, against the radial finger 113 of the adjacent core 110, the latter rotates in turn. Likewise, the axial finger 111 of the core 110 drives the adjacent secondary drive disk 120, which drives the adjacent core 110. The combination discs 100 being integral with the cores 110, they rotate, so that the angular position of their notch 102 is modified.

Egalement de façon connue en soi, pour ouvrir la serrure, il y a lieu de positionner d'abord le disque de combinaison 100 disposé le plus au fond dans le coffre de façon que son encoche 102 soit en position haute (figures 3a et 4a), en tournant par exemple la molette 210 dans le sens horaire. Puis on doit positionner le deuxième disque de combinaison 100 en tournant la molette dans le sens anti-horaire.Also in a manner known per se, in order to open the lock, it is first necessary to position the combination disc 100 placed furthest in the trunk so that its notch 102 is in the high position (FIGS. 3a and 4a). , for example by turning the dial 210 clockwise. Then we must position the second combination disc 100 by turning the dial counterclockwise.

Comme cela apparaît sur la figure 10, et dans cet exemple de réalisation, un mécanisme de fermeture de la porte est monté sur la paroi de la porte, à côté du coffre 1 de la serrure. De façon connue en soi, ce mécanisme comprend une gâche 230 s'étendant sensiblement dans le plan de la serrure, qui présente une extrémité 231 en ferme de L pourvue d'une ouverture rectangulaire 232 destinée à recevoir l'extrémité 71 du pêne 70, et une autre extrémité pourvue également d'une ouverture rectangulaire 233. Cette gâche est montée à pivotement dans son plan sur un axe 234.As shown in Figure 10, and in this embodiment, a door closing mechanism is mounted on the wall of the door, next to the trunk 1 of the lock. In a manner known per se, this mechanism comprises a keeper 230 extending substantially in the plane of the lock, which has a closed end 231 of L provided with a rectangular opening 232 intended to receive the end 71 of the bolt 70, and another end also provided with a rectangular opening 233. This keeper is pivotally mounted in its plane on an axis 234.

Au-dessus et au-dessous de l'axe 234 sont montées à pivotement par une extrémité autour de deux axes 241, 251, deux tringles 240, 250 s'étendant respectivement vers le haut et vers le bas et destinées à coopérer avec des gâches prévues dans un chambranle de la porte. Une cornière verticale 260 en forme de L porte sur une branche un pion 261 agencé pour se déplacer dans l'ouverture 233 de la gâche 230, et sur une autre branche deux pênes horizontaux 262, 263 disposés l'un en-dessous de l'autre et agencés pour coopérer avec deux gâches correspondantes prévues sur le chambranle de la porte.Above and below the axis 234 are pivotally mounted by one end around two axes 241, 251, two rods 240, 250 extending respectively upwards and downwards and intended to cooperate with strikes provided in a doorframe. An L-shaped vertical angle 260 carries on a branch a pin 261 arranged to move in the opening 233 of the keeper 230, and on another branch two horizontal bolts 262, 263 arranged one below the other and arranged to cooperate with two corresponding strikes provided on the door frame.

Une poignée 270 permet d'entraîner la gâche 230 en rotation. De façon également connue en soi, la rotation de la poignée 270 dans le sens de la flèche 271 (figure 10) permet d'entraîner les tringles 240, 250 et les pênes 262, 263 selon les flèches 272 afin de les écarter des gâches avec lesquelles ils coopèrent, et la rotation de poignée dans le sens inverse a pour effet de les faire rentrer dans les gâches.A handle 270 makes it possible to drive the keeper 230 in rotation. In a manner also known per se, the rotation of the handle 270 in the direction of the arrow 271 (FIG. 10) makes it possible to drive the rods 240, 250 and the bolts 262, 263 according to the arrows 272 in order to separate them from the strikes with which they cooperate, and the rotation of the handle in the opposite direction has the effect of causing them to enter the keepers.

L'extrémité 231 en forme de L de la gâche 230 porte une vis 235 perpendiculaire et en saillie vers l'extérieur qui est immobilisée par un écrou 236.The L-shaped end 231 of the keeper 230 carries a screw 235 perpendicular and projecting outwards which is immobilized by a nut 236.

Le fonctionnement de la serrure dans son ensemble va maintenant être exposé. On considère que la serrure est fermée (figures 2a, 2b). Le pêne 70 est en position sortie, dans laquelle il pénètre dans l'ouverture 232 de la gâche 230. Le doigt de dégagement 94 pend sous l'effet de son poids, car le ressort 98 ne coopère pas avec lui. La position relative du disque d'entraînement 130 et du disque entretoise 160 dépend alors du sens de rotation dans lequel on a tourné la molette 210 pour la dernière fois. Tel que représenté en figure 2b, on a considéré que la molette a été tournée dans le sens anti-horaire, de sorte que les deux disques 130, 160 sont décalés angulairement et que le doigt 38 du va-et-vient 30 peut donc, soit prendre appui sur eux deux, comme représenté sur la figure 2b, soit prendre appui sur le seul disque 160 si la molette est tournée d'environ 180" dans le sens anti-horaire et que l'encoche 151 fait face au doigt 38 du va-et-vient 30. Dans les deux cas, le doigt 38 est soutenu à une même hauteur de façon à être situé un peu au-dessus des disques de combinaison 100 (figure 2a). Grâce à cet agencement, il n'est pas possible de tenter de découvrir la combinaison codée de la serrure en faisant tourner la molette 210 : dans les serrures connues, où le doigt 38 reposait sur les disques de combinaison, il était possible d'entendre le choc du doigt 38 frottant contre l'une ou l'autre des encoches 102 de ces disques.The operation of the lock as a whole will now be explained. We consider that the lock is closed (Figures 2a, 2b). The bolt 70 is in the extended position, in which it enters the opening 232 of the keeper 230. The release finger 94 hangs under the effect of its weight, because the spring 98 does not cooperate with it. The relative position of the drive disc 130 and the spacer disc 160 then depends on the direction of rotation in which the wheel 210 was turned for the last time. As shown in Figure 2b, it was considered that the wheel was turned counterclockwise, so that the two discs 130, 160 are angularly offset and that the finger 38 of the back-and-forth 30 can therefore either rest on both of them, as shown in FIG. 2b, or rest on the single disc 160 if the dial is turned from about 180 "counter-clockwise and that the notch 151 faces the finger 38 of the back and forth 30. In both cases, the finger 38 is supported at the same height so as to be located a little above combination discs 100 (FIG. 2a) Thanks to this arrangement, it is not possible to try to discover the coded combination of the lock by turning the thumb wheel 210: in known locks, where finger 38 rested on the combination discs, it was possible to hear the impact of the finger 38 rubbing against one or other of the notches 102 of these discs.

Le va-et-vient est donc en position haute de sorte que la cale mobile 45 est située derrière le pêne 70 , empêchant celui-ci d'être repoussé vers l'intérieur de la serrure. Le doigt de brouillage 80 repose, par son épaulement 81, sur le pan 31 du va-et-vient 30. Les disques de combinaison 100 sont dans une position angulaire aléatoire.The back and forth is therefore in the high position so that the movable wedge 45 is located behind the bolt 70, preventing the latter from being pushed back towards the inside of the lock. The jamming finger 80 rests, by its shoulder 81, on the pan 31 of the back-and-forth movement 30. The combination discs 100 are in a random angular position.

Le crochet de traction 90 repose par son épaulement 91 sur le doigt 38 du va-et-vient 30, et est donc maintenu dans une position haute ne lui permettant pas de rentrer dans l'encoche 141 du disque d'entrainement 130.The traction hook 90 rests by its shoulder 91 on the finger 38 of the back-and-forth 30, and is therefore maintained in a high position not allowing it to enter the notch 141 of the drive disc 130.

Enfin, le basculeur 50 prend appui par son doigt 53 sous le pêne 70 (figure 2a) et est donc maintenu en position inclinée, de sorte que le poussoir 55 est presque complètement rentré dans la serrure et n'est pas en contact avec la vis 235 portée par la gâche 230.Finally, the rocker 50 is supported by his finger 53 under the bolt 70 (FIG. 2a) and is therefore kept in an inclined position, so that the pusher 55 is almost completely retracted into the lock and is not in contact with the screw. 235 carried by the keeper 230.

On considère maintenant que la combinaison codée a été effectuée en tournant la molette 210 (figures 4a et 4b), dans un sens et dans l'autre alternativement, et pour la dernière fois dans le sens anti-horaire. Les encoches 102 des deux disques de combinaison 100 sont donc alignées en position haute. On a alors effectué une rotation de la molette 210 dans le sens horaire de sorte que l'encoche 151 n'est progressivement plus masquée par le disque-entretoise 160, que le doigt 38 du va-et-vient 30 tombe sur le fond 152 de l'encoche 151 dont la distance radiale est identique à celle du fond des encoches 102 des disques de combinaison 100 : sur la figure 4a, le doigt 38 est donc au fond des encoches 102.It is now considered that the coded combination was carried out by turning the wheel 210 (Figures 4a and 4b), in one direction and the other alternately, and for the last time in the counterclockwise direction. The notches 102 of the two combination discs 100 are therefore aligned in the high position. We then made a rotation of the thumbwheel 210 clockwise so that the notch 151 is gradually no longer masked by the disc-spacer 160, that the finger 38 of the back-and-forth 30 falls on the bottom 152 of the notch 151, the radial distance of which is identical to that of the bottom of the notches 102 of the combination discs 100: in FIG. 4a, the finger 38 is therefore at the bottom of the notches 102.

Par conséquent, le crochet de traction 90 a pivoté sous l'effet de la gravité jusqu'à buter au fond de l'encoche 141 du disque d'entraînement principal 130 : on notera en effet que, sur la figure 4b, le crochet de traction 90 n'est plus soutenu par le doigt 38 du va-et-vient 30.Consequently, the traction hook 90 has pivoted under the effect of gravity until it stops at the bottom of the notch 141 of the main drive disc 130: it will in fact be noted that, in FIG. 4b, the hook pull 90 is no longer supported by the finger 38 of the back and forth 30.

Une autre conséquence est que le va-et-vient 30 s'est déplacé jusqu'à sa position basse. Le doigt de brouillage 80 n'est donc plus soutenu par le va-et-vient 30 et s'appuie sur les disques de combinaison 100. Par ailleurs, la cale mobile 45 s'est déplacée jusqu'à sa position basse où elle n'empêche plus la rentrée du pêne 70.Another consequence is that the back and forth 30 has moved to its low position. The jamming finger 80 is therefore no longer supported by the back-and-forth 30 and is supported on the combination discs 100. Furthermore, the movable wedge 45 has moved to its low position where it does not no longer prevents the retraction of the bolt 70.

Telle que représentée sur les figures 4a, 4b, la serrure est prête à être ouverte : il suffit de continuer à tourner la molette 210 dans le sens horaire pour entraîner le crochet de traction 90 vers la droite, et donc de rentrer le pêne 70. La rentrée progressive du pêne 70 a trois effets successifs : d'une part, le doigt de brouillage 80 recule, son extrémité libre glissant sur le bord des disques de combinaison 100 jusqu'à tomber dans l'encoche 102 de ceux-ci ; d'autre part, le doigt 53 du basculeur 50 "tombe" dans l'épaulement du pêne 70 défini par la face de butée 73 puisque ce doigt frotte contre le pêne en étant rappelé élastiquement en rotation anti-horaire ; enfin, puisque le crochet de traction se déplace vers la droite (figure 4b), il pousse le doigt de dégagement 94 contre l'effet du ressort 98.As shown in FIGS. 4a, 4b, the lock is ready to be opened: it suffices to continue turning the wheel 210 clockwise to drive the traction hook 90 to the right, and therefore to retract the bolt 70. The progressive re-entry of the bolt 70 has three successive effects: on the one hand, the jamming finger 80 moves back, its free end sliding on the edge of the combination discs 100 until it falls into the notch 102 thereof; on the other hand, the finger 53 of the rocker 50 "falls" into the shoulder of the bolt 70 defined by the abutment face 73 since this finger rubs against the bolt while being resiliently biased in counterclockwise rotation; finally, since the traction hook moves to the right (FIG. 4b), it pushes the release finger 94 against the effect of the spring 98.

Au moment où l'utilisateur relâche la molette 210, le ressort 98 fait pivoter le doigt de dégagement 94 dans le sens horaire, le doigt de dégagement faisant lui-même pivoter le crochet de traction 90 dans le sens anti-horaire de sorte que ce dernier sort de l'encoche 141 du disque d'entraînement principal 130 et vient contre la paroi latérale 4 du coffre 1 de serrure.When the user releases the wheel 210, the spring 98 rotates the release finger 94 clockwise, the release finger itself pivoting the pull hook 90 counterclockwise so that last comes out of the notch 141 of the main drive disc 130 and comes against the side wall 4 of the lock box 1.

La situation alors obtenue est illustrée par les figures 3a et 3b. Le pêne est maintenu en position rentrée par le doigt 53 du basculeur 50. On notera que la molette 210 ne peut alors être tournée que sur une portion angulaire correspondant à celle selon laquelle s'étend l'encoche 151 du disque d'entraînement principal. En effet, dans un sens comme dans l'autre, les bords de l'encoche 151 tendent à relever le doigt 38 : or, celui-ci ne peut pas être relevé car il bute contre la face de butée inclinée 74 du pêne 70. On s'oppose ainsi à une tentative de l'utilisateur consistant à vouloir lever le doigt 38 pour lever le doigt de brouillage 80, en vue d'éviter un brouillage des disques de combinaison 100.The situation then obtained is illustrated by Figures 3a and 3b. The bolt is held in the retracted position by the finger 53 of the rocker 50. It will be noted that the thumbwheel 210 can then only be turned over an angular portion corresponding to that along which extends the notch 151 of the main drive disc. In fact, in one direction as in the other, the edges of the notch 151 tend to raise the finger 38: however, the latter cannot be raised because it abuts against the inclined abutment face 74 of the bolt 70. One thus opposes an attempt by the user consisting in wanting to lift the finger 38 to lift the scrambling finger 80, in order to avoid scrambling of the combination discs 100.

Une fois la serrure ouverte, la gâche 230 peut être tournée dans le sens horaire (figures 3a, 3b) à partir d'une position horizontale (figure 10) grâce à la poignée 270. En effet, d'une part le pêne 70 ne traverse plus l'ouverture 232 de la gâche 230 ; d'autre part la vis 235 de la gâche bute, dans sa rotation, contre le poussoir 55 lequel s'escamote en pivotant dans le sens anti-horaire. La porte est alors ouverte.Once the lock is open, the keeper 230 can be turned clockwise (Figures 3a, 3b) from a horizontal position (Figure 10) using the handle 270. Indeed, on the one hand the bolt 70 does no longer passes through the opening 232 of the keeper 230; on the other hand the screw 235 of the striker abuts, in its rotation, against the pusher 55 which retracts by pivoting counterclockwise. The door is then opened.

Pour refermer la porte, on tourne la poignée 270 et donc la gâche 230 dans le sens horaire. La vis 235 vient donc en butée sur l'extrémité arrondie 57 du poussoir 55. Or ce dernier ne peut pas pivoter dans le sens horaire puisqu'il s'appuie sur la saillie 54 du basculeur 50, de sorte que le basculeur est poussé dans le sens horaire, à l'encontre de l'effet du ressort 60. Il en résulte que le doigt 53 du basculeur 50 se dégage de la face de butée 73 du pêne 70 : le pêne est alors poussé instantanément vers sa position sortie par la lame-ressort 85.To close the door, the handle 270 is turned and therefore the keeper 230 clockwise. The screw 235 therefore abuts on the rounded end 57 of the pusher 55. However, the latter cannot pivot clockwise since it rests on the projection 54 of the rocker 50, so that the rocker is pushed clockwise, against the effect of the spring 60. As a result, the finger 53 of the rocker 50 emerges from the abutment face 73 of the bolt 70: the bolt is then instantly pushed towards its extended position by the leaf spring 85.

Lors de la sortie du pêne 70, le doigt de brouillage 80 est entraîné vers la gauche de la figure 3a, de sorte qu'il pousse les disques de combinaison 100, lesquels effectuent une rotation aléatoire sur un certain angle. En pratique, il a été observé que les différents disques de combinaison n'effectuaient pas exactement le même trajet , de sorte que leurs encoches 102 ne sont plus alignées.When the bolt 70 exits, the jamming finger 80 is driven to the left of FIG. 3a, so that it pushes the combination discs 100, which perform a random rotation by a certain angle. In practice, it has been observed that the different combination discs do not travel exactly the same way, so that their notches 102 are no longer aligned.

Puisque les disques de combinaison 100 sont entraînés en rotation anti-horaire, ils repoussent, grâce à l'extrémité arrondie 103 de leur encoche 102, le doigt 38 du va-et-vient 30 vers sa position haute. Par ailleurs, le crochet de traction 90 s'éloignant du doigt de dégagement 94, il n'est plus supporté par celui-ci et revient en butée sur le doigt 38 du va-et-vient 30.Since the combination discs 100 are driven in anti-clockwise rotation, they push back, thanks to the rounded end 103 of their notch 102, the finger 38 of the back and forth 30 towards its high position. Furthermore, the traction hook 90 moving away from the release finger 94, it is no longer supported by the latter and comes into abutment on the finger 38 of the back-and-forth 30.

La situation alors obtenue est la situation initiale illustrée par les figures 2a, 2b.The situation then obtained is the initial situation illustrated by Figures 2a, 2b.

Dans cet exemple de réalisation, il a été constaté que la sortie du pêne 70 s'effectue plus lentement que la remontée du va-et-vient 30. Cela signifie que la cale mobile 45 vient buter contre la partie arrière du pêne 70 durant la remontée du va-et-vient 30. Mais puisque cette cale est montée pivotante, le mécanisme de la serrure ne se bloque pas, la cale mobile 45 étant repoussée vers le bas sur un certain angle.In this exemplary embodiment, it has been observed that the bolt 70 exits more slowly than the up-and-down movement 30. This means that the movable wedge 45 abuts against the rear part of the bolt 70 during the ascent back and forth 30. But since this wedge is pivotally mounted, the lock mechanism is not blocked, the movable wedge 45 being pushed downward at a certain angle.

On notera que, en l'absence du doigt de dégagement 94, le crochet de traction 90 resterait dans l'encoche 141 du disque d'entraînement 130 après ouverture de la serrure, ce qui permettrait à l'utilisateur averti, en immobilisant la molette 210, d'empêcher la sortie automatique du pêne 70 lors de la fermeture de la porte. Il en résulterait que la serrure ne serait pas fermée et que les disques de combinaison 100 ne seraient pas brouillés. En pratique, il est donc préférable de prévoir un doigt de dégagement 94.It will be noted that, in the absence of the release finger 94, the traction hook 90 would remain in the notch 141 of the drive disc 130 after opening the lock, which would allow the informed user, by immobilizing the thumb wheel 210, to prevent the automatic exit of the bolt 70 when the door is closed. This would result in the lock not being closed and the combination discs 100 not being scrambled. In practice, it is therefore preferable to provide a release finger 94.

De façon connue en soi, la modification de la combinaison codée de la serrure s'effectue en introduisant par l'arrière de la serrure une clé ou tige traversant le trou 12 du coffre 1, les trous 104 des disques de combinaison 100, et les trous 173 des plaquettes d'espacement 170. Les disques de combinaison sont alors écartés, et leurs noyaux 110 peuvent être déplacés en rotation en manoeuvrant la molette 210. Le doigt 35 du va-et-vient 30 repose avantageusement sur la clé lors de cette opération puisqu'il est situé au droit du trou 12 du coffre 1 (figure 2a) : le va-et-vient 30 est donc maintenu en position haute, de sorte que le crochet de traction 90 est écarté du disque d'entraînement 130 lequel peut tourner librement.In a manner known per se, the modification of the coded combination of the lock is carried out by introducing a key or rod through the rear of the lock passing through the hole 12 of the trunk 1, the holes 104 of the combination discs 100, and the holes 173 of the spacing plates 170. The combination discs are then spaced apart, and their cores 110 can be moved in rotation by maneuvering the thumb wheel 210. The finger 35 of the back and forth 30 advantageously rests on the key during this operation since it is located to the right of the hole 12 of the trunk 1 (FIG. 2a): the back-and-forth 30 is therefore held in the high position, so that the traction hook 90 is moved away from the drive disc 130 which can rotate freely.

Selon une autre forme de réalisation de l'invention, il n'est pas prévu de mécanisme de fermeture de porte à côté de la serrure de sorte que le pêne de la serrure coopère directement avec la gâche fixe d'un chambranle de porte, la molette servant de poignée d'ouverture de la porte. Dans ce cas, les moyens de déverrouillage du pêne en position rentrée, par exemple un poussoir, sont agencés pour coopérer avec la gâche fixe.According to another embodiment of the invention, there is no mechanism for closing the door next to the lock so that the bolt of the lock cooperates directly with the fixed strike of a door jamb, the knob serving as door opening handle. In this case, the means for unlocking the bolt in the retracted position, for example a pusher, are arranged to cooperate with the fixed strike.

La serrure décrite ci-dessus fonctionne de manière satisfaisante. Toutefois, on peut constater qu'après ouverture de la serrure, le retrait du crochet de traction 90 hors de l'encoche 141 du disque d'entraînement principal 130 ne peut s'effectuer que si l'utilisateur a préalablement relâché la molette 210. La figure 11, représentant une variante de serrure incluant tous les éléments de la première serrure, et où les éléments inchangés portent les mêmes références que dans la première serrure, illustre l'état de la serrure après son ouverture mais avant que l'utilisateur ait relâché la molette 210 (fig. 1 b).The lock described above works satisfactorily. However, it can be seen that after opening the lock, the withdrawal of the traction hook 90 out of the notch 141 of the main drive disc 130 can only be carried out if the user has previously released the wheel 210. FIG. 11, representing a variant of a lock including all the elements of the first lock, and where the unchanged elements bear the same references as in the first lock, illustrates the state of the lock after it has been opened but before the user has released the thumbwheel 210 (fig. 1 b).

Dans cette situation, le crochet de traction 90 est maintenu prisonnier dans l'encoche 1410 du disque d'entraînement principal 1300. Ainsi, bien que le doigt de dégagement 94 s'appuie sur le crochet de traction 90, il ne peut le faire pivoter dans le sens anti-horaire. C'est ce qui permet à un utilisateur averti d'empêcher la sortie automatique du pêne 70 lors de la fermeture de la porte et d'interdire ainsi la fermeture de la serrure et le brouillage des disques de combinaison.In this situation, the traction hook 90 is held captive in the notch 1410 of the main drive disc 1300. Thus, although the release finger 94 rests on the traction hook 90, it cannot rotate it counterclockwise. This is what allows an informed user to prevent the automatic exit of the bolt 70 when the door is closed and thus to prohibit the closing of the lock and the jamming of the combination discs.

La serrure représentée sur les figures 11 et 12 est agencée pour imposer à l'utilisateur de relâcher la molette 210 avant que la porte puisse être ouverte. Le disque d'entraînement principal 1300 comporte, comme celui 130 de la serrure précédente, deux disques accolés 1400, 1500 et il en diffère en ce que son disque 1400 comporte une seconde encoche 1420 en forme de V, délimitée par deux pans 1421,1422. Il est prévu un pêne auxiliaire 700 en forme de T comportant une jambe 701 et deux bras 702,703 dont l'un 703 est prolongé par un doigt 704 de plus faible largeur, arrondi à son extrémité.The lock shown in Figures 11 and 12 is arranged to require the user to release the thumbwheel 210 before the door can be opened. The main drive disc 1300 has, like that 130 of the previous lock, two discs joined 1400, 1500 and it differs in that its disc 1400 has a second notch 1420 in the form of V, delimited by two sides 1421,1422 . An T-shaped auxiliary bolt 700 is provided, comprising a leg 701 and two arms 702.703, one of which 703 is extended by a finger 704 of narrower width, rounded at its end.

Le pêne auxiliaire 700 est monté dans la serrure, contre la face du pêne 70 tournée vers l'extérieur de la serrure. Son bras 702 traverse une lumière 800 pratiquée dans le coffre 1000, au-dessous de la lumière 8. Son bras 703 est guidé entre la base du crochet de traction 90 et le pilier 15. Sa jambe 701, tournée vers la paroi latérale 4 du coffre 1000, s'étend entre la paroi latérale 3 et la base du crochet de traction 90. Ainsi, le pêne auxiliaire 700 peut coulisser selon une direction parallèle à la direction de coulissement du pêne 70.The auxiliary bolt 700 is mounted in the lock, against the face of the bolt 70 facing outwards from the lock. Its arm 702 passes through a light 800 formed in the trunk 1000, below the light 8. Its arm 703 is guided between the base of the traction hook 90 and the pillar 15. Its leg 701, facing the side wall 4 of the trunk 1000, extends between the side wall 3 and the base of the traction hook 90. Thus, the bolt auxiliary 700 can slide in a direction parallel to the sliding direction of the bolt 70.

Un ressort hélicoïdal 1600 est monté sur le pilier 14 et comporte deux branches 1601, 1602 dont l'une s'appuie sur la paroi latérale 4 du coffre 1000 et l'autre sur une face latérale de la jambe 701 du pêne auxiliaire 700, tournée vers la paroi latérale 3 du coffre 1000, de façon que le pêne auxiliaire soit rappelé vers une position rentrée. Ainsi le doigt 704 du pêne auxiliaire prend appui sur la face latérale du disque 1400. Dans la situation de la figure 11 où l'utilisateur n'a pas relâché la molette 210 (fig. 1 b), le doigt 704 prend appui sur la partie non encochée de la surface latérale du disque 1400, de sorte que le bras 702 du pêne auxiliaire 700 s'étend à l'extérieur du coffre 1000 au-delà du pêne 70, jusqu'à traverser une lumière 2321 pratiquée dans la gâche 2300, au-dessous de la lumière 2320 destinée à recevoir le pêne 70. Dans ces conditions, l'utilisateur ne peut pas ouvrir la porte.A helical spring 1600 is mounted on the pillar 14 and comprises two branches 1601, 1602 one of which rests on the side wall 4 of the trunk 1000 and the other on a side face of the leg 701 of the auxiliary bolt 700, turned towards the side wall 3 of the boot 1000, so that the auxiliary bolt is returned to a retracted position. Thus the finger 704 of the auxiliary bolt is supported on the lateral face of the disc 1400. In the situation in FIG. 11 where the user has not released the wheel 210 (fig. 1 b), the finger 704 is supported on the non-notched part of the lateral surface of the disc 1400, so that the arm 702 of the auxiliary bolt 700 extends outside the trunk 1000 beyond the bolt 70, until passing through a light 2321 formed in the strike 2300 , below the light 2320 intended to receive the bolt 70. Under these conditions, the user cannot open the door.

Au contraire, en figure 12, l'utilisateur a relâché la molette 210, de sorte que le crochet de traction 90 est sorti de l'encoche 1410 : la serrure est dans un état analogue à celui de la figure 3b. C'est maintenant l'encoche 1420 du disque 1400 qui se trouve en face du doigt 704 du pêne auxiliaire 700. Le dégagement ainsi procuré au pêne auxiliaire 700 lui permet de coulisser jusque dans une position rentrée où il prend appui sur le pan 1422 de l'encoche 1420 et où il ne coopère plus avec la gâche 2300 : l'utilisateur peut alors ouvrir la porte.On the contrary, in FIG. 12, the user has released the wheel 210, so that the traction hook 90 has come out of the notch 1410: the lock is in a state similar to that of FIG. 3b. It is now the notch 1420 of the disc 1400 which is located opposite the finger 704 of the auxiliary bolt 700. The clearance thus provided to the auxiliary bolt 700 allows it to slide into a retracted position where it rests on the pan 1422 of the notch 1420 and where it no longer cooperates with the strike 2300: the user can then open the door.

Claims (10)

1. Lock mounted on a door and comprising
- a bolt (70) that can be moved in translation between an extended position and a retracted position;
- means (85) for biasing the bolt towards its extended position;
- means (90) for pulling the bolt from its extended position towards its retracted position that are attached in a movable manner to the bolt;
- a combination disc (100) that comprises a recess (102) and stop means (113) and is rotatably mounted on a shaft (13);
- a driving disc (130) that is rotatably mounted on the said shaft and comprises stop means (153) co-operating with those of the combination disc in a predetermined relative angular position of those discs, and first means (141) for co-operating with the said pulling means (90) for the bolt;
- means (210, 212) for controlling the rotation of the driving disc (130);
- second means (38) for co-operating with the said pulling means (90) for the bolt (70), which second means are arranged so that they can be received in the said recess in a predetermined angular position of the combination disc (100) obtained by actuating the said control means (210, 212) in accordance with a coded combination, those second means being movable between a position in which they are located outside the recess (102) and maintain the pulling means (90) for the bolt at a distance from the driving disc (130), and a position in which they are located in the recess and permit co-operation between the pulling means for the bolt and the said first means (141) of the driving disc, it then being possible for the bolt to be displaced towards its retracted position by rotating the driving disc (130), characterised in that the lock comprises:
- means that are arranged to lock the bolt in its retracted position and comprise a rocking lever (50) pivotably mounted in the lock and comprising stop means (53), stop means (73) provided on the bolt, and biasing means (60) arranged to bias the rocking lever (50) in resilient manner towards the bolt (70) in such a manner that the respective said stop means (53, 73) co-operate with each other;
- means (94, 98) for moving the said pulling means (90) for the bolt away from the driving disc (130) when the bolt is in its retracted position;
- means (55) for unlocking the bolt once the door has been opened and then shut again, which means are arranged to cause the rocking lever (50) to pivot, in opposition to the said biasing means (60), in such a manner that its stop means (53) are moved away from the bolt (70); and
- a mechanism for closing the door, which mechanism is mounted on the latter next to the bolt and comprises a rod assembly (240), which co-operates with a frame of the door, and means (270) for controlling that rod assembly that comprise a striking plate (230) movably mounted opposite the bolt, the bolt traversing the said striking plate in its extended position in order to lock the said means for controlling the rod assembly, the said means (55) for unlocking the bolt (70) being arranged to cooperate with the said striking plate (230) when the latter is displaced at the moment when the door is closed in order to unlock the bolt (70).
2. Lock according to claim 1, in which the said locking means comprise a button device (55) that is pivotably mounted on the rocking lever (50).
3. Lock according to claim 1, in which the said means for moving away the pulling means (90) for the bolt comprise:
- a finger (94) that is pivotably mounted on the bolt (70); and
- a spring (98) that is mounted in a fixed manner in the lock and is arranged to co- operate with the finger (94) when the bolt is in its retracted position in such a manner that the finger (94) is biased in a direction of rotation in which it moves the said pulling means (90) for the bolt away from the driving disc (130).
4. Lock according to claim 3 that comprises:
- an auxiliary bolt (700) that can be moved in translation between an extended position and a retracted position; and
- means (1420, 1600, 1300) arranged to displace the auxiliary bolt (700) between those two positions in such a manner that, when the said bolt (70) is in its retracted position, the auxiliary bolt (700) is in its extended position if the driving disc is in an angular position in which it co-operates with the pulling means (90) for the bolt (70), and the auxiliary bolt (700) is in its retracted position in the opposite case.
5. Lock according to claim 1 that comprises scrambling means (80) for the random modification of the angular position of the combination disc (100) when the door is closed.
6. Lock according to claim 5, in which the said scrambling means comprise a finger (80) that is mounted on the bolt (70) in such a manner that it can pivot parallel thereto and can be biased towards the combination disc (100), the said finger penetrating into the said recess (102) of the combination disc when the bolt is in its retracted position, and driving the combination disc on a random angular portion when the bolt is displaced towards its extended position.
7. Lock according to claim 1 that comprises means (45) for locking the bolt in its extended position as long as the combination disc (100) has not been brought into the said predetermined angular position.
8. Lock according to claim 1, in which the driving disc (130) is arranged to support the said second means (38), which co-operate with the pulling means (90), when the bolt is in its extended position, except on a predetermined angular sector of that disc in which it has a recess (151), a supporting disc (160) that has an external shape that is identical with that of the driving disc being rotatably mounted next to the latter on the said shaft (13), the supporting disc having a slot (162) that extends over a portion of a circle defined by an angular sector at least equal to the preceding sector, the said stop means (153) of the driving disc (130) traversing the said slot in such a manner that, when the driving disc (130) rotates in the opposite direction to that corresponding to the retraction of the bolt (70), the supporting disc (160) masks its recess (151) in order to support the said second means (38) on behalf of the recess (151).
9. Lock according to claim 6 that comprises means (45) for locking the bolt in its extended position as long as the combination disc (100) has not been brought into the said predetermined angular position, and a reciprocating means (30) on which are secured the said second means (38) for co-operating with the pulling means (90) for the bolt (70) and the said means (45) for locking the bolt (70) in its extended position, the said reciprocating means (30) being mounted in the lock in such a manner that they can move in translation between a first position in which:
- the said second means (38) co-operate with the pulling means (90) for the bolt;
- the said locking means (45) ensure that the bolt is locked; and
- the reciprocating means maintain the scrambling finger (80) at a distance from the combination disc (100);
and a second position in which:
- the said second means (38) do not co- operate with the pulling means (90) for the bolt;
- the said locking means (45) do not ensure that the bolt is locked; and
- the reciprocating means do not co-operate with the scrambling finger (80).
10. Lock according to claim 1 that comprises:
- several combination discs (100) that are rotatably mounted on the shaft (13) and each of which comprises a recess (102) arranged to receive the said second means (38) which co-operate with the pulling means (90) for the bolt, and stop means (111, 113) on each of its faces;
- several secondary driving discs (120), each of which is inserted between two combination discs (100) or between a combination disc and the disc (130) for driving the bolt and comprises stop means (121, 122) that can co-operate with those (111, 113, 153) of the adjacent discs.
EP19880401283 1987-05-27 1988-05-26 Disc combination lock with automatic scrambling on closing Expired - Lifetime EP0294276B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88401283T ATE82356T1 (en) 1987-05-27 1988-05-26 COMBINATION LOCK WITH LOCKING WASHERS AND AUTOMATIC DELETION OF THE COMBINATION ON LOCKING.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8707460A FR2615891B1 (en) 1987-05-27 1987-05-27 DISC COMBINATION LOCK COMPRISING AUTOMATIC INTERFERENCE MECHANISM ON CLOSURE
FR8707460 1987-05-27

Publications (2)

Publication Number Publication Date
EP0294276A1 EP0294276A1 (en) 1988-12-07
EP0294276B1 true EP0294276B1 (en) 1992-11-11

Family

ID=9351509

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19880401283 Expired - Lifetime EP0294276B1 (en) 1987-05-27 1988-05-26 Disc combination lock with automatic scrambling on closing

Country Status (7)

Country Link
US (1) US4961332A (en)
EP (1) EP0294276B1 (en)
JP (1) JPS6452975A (en)
AT (1) ATE82356T1 (en)
CA (1) CA1309602C (en)
DE (1) DE3875804T2 (en)
FR (1) FR2615891B1 (en)

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Publication number Priority date Publication date Assignee Title
CN110700104A (en) * 2019-10-17 2020-01-17 中国十七冶集团有限公司 Construction platform of suspension bridge suspender tensioning equipment and use method

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US5095724A (en) * 1991-04-18 1992-03-17 Sargent & Greenleaf, Inc. Tumbler wheel scrambler for combination lock
US6151935A (en) * 1997-09-06 2000-11-28 Mas-Hamilton Group Deadbolt combination lock system with automatic locking spring bolt
CN1209541C (en) * 2002-12-02 2005-07-06 邵志军 Mechanical thumbwheel puzzle lock
US6904778B2 (en) 2003-04-28 2005-06-14 Lockmasters, Inc. Mechanical combination lock

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US470110A (en) * 1892-03-01 Charles a
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US1863537A (en) * 1930-11-07 1932-06-14 Aster Stanley Combination lock
US2436859A (en) * 1942-11-17 1948-03-02 Lips Brandkasten Sloten Combination lock with rotating tumbler discs
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US3176486A (en) * 1963-07-12 1965-04-06 Diebold Inc Manipulation resistive combination lock
US3339382A (en) * 1964-12-15 1967-09-05 Sargent & Greenleaf Combination lock for security cabinets and the like
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US3481167A (en) * 1968-03-14 1969-12-02 Federal Equipment Co Combination lock with upset mechanism
DE2848217A1 (en) * 1977-11-11 1979-05-17 Chubb & Sons Lock & Safe Co COMBINATION LOCK
US4147045A (en) * 1978-02-06 1979-04-03 Lori Engineering Corporation Combination lock with scrambler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110700104A (en) * 2019-10-17 2020-01-17 中国十七冶集团有限公司 Construction platform of suspension bridge suspender tensioning equipment and use method
CN110700104B (en) * 2019-10-17 2021-02-26 中国十七冶集团有限公司 Construction platform of suspension bridge suspender tensioning equipment and use method

Also Published As

Publication number Publication date
US4961332A (en) 1990-10-09
CA1309602C (en) 1992-11-03
ATE82356T1 (en) 1992-11-15
DE3875804T2 (en) 1993-03-25
FR2615891A1 (en) 1988-12-02
EP0294276A1 (en) 1988-12-07
DE3875804D1 (en) 1992-12-17
JPS6452975A (en) 1989-03-01
FR2615891B1 (en) 1991-06-07

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