EP3135350B1 - Braking device for snowboard binding - Google Patents

Braking device for snowboard binding Download PDF

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Publication number
EP3135350B1
EP3135350B1 EP16001752.1A EP16001752A EP3135350B1 EP 3135350 B1 EP3135350 B1 EP 3135350B1 EP 16001752 A EP16001752 A EP 16001752A EP 3135350 B1 EP3135350 B1 EP 3135350B1
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EP
European Patent Office
Prior art keywords
rotation
braking device
braking
pressure plate
axis
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Active
Application number
EP16001752.1A
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German (de)
French (fr)
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EP3135350A1 (en
Inventor
Stéphane Lapierre
Laurent Damiani
François Convert
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Salomon SAS
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Salomon SAS
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Publication of EP3135350A1 publication Critical patent/EP3135350A1/en
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Classifications

    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C7/00—Devices preventing skis from slipping back; Ski-stoppers or ski-brakes
    • A63C7/10—Hinged stoppage blades attachable to the skis in such manner that these blades can be moved out of the operative position
    • A63C7/1073—Ski-brakes
    • A63C7/108—Ski-brakes operated by hand, e.g. using a stick, by leg or by boot
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C7/00—Devices preventing skis from slipping back; Ski-stoppers or ski-brakes
    • A63C7/10—Hinged stoppage blades attachable to the skis in such manner that these blades can be moved out of the operative position
    • A63C7/1006—Ski-stoppers
    • A63C7/1013—Ski-stoppers actuated by the boot
    • A63C7/102—Ski-stoppers actuated by the boot articulated about one transverse axis
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/006—Ski bindings with a climbing wedge
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/08—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings
    • A63C9/0807—Ski bindings yieldable or self-releasing in the event of an accident, i.e. safety bindings for both towing and downhill skiing

Definitions

  • the present invention relates to a braking device for fixing a gliding board such as a ski.
  • the invention is more particularly intended for a mixed use of the gliding board, namely, a use for an alpine type practice and use for a hiking type of practice.
  • the brake In the first case, the brake must be continuously operational so that it can activate and stop the movement of the ski as soon as the skier triggers or loosens the binding.
  • the brake In the second case, the brake must be inhibited so that the brake remains inactive, when the skier raises the heel of his shoe, so as not to slow down his movement.
  • the braking devices comprise two lateral braking branches. Each branch pivots around an axis transverse to the ski. Elastic means tend to maintain the branches in an active braking position, in which the branches are sufficiently inclined relative to the sole of the ski so that a portion protrudes from the sole of the ski, downwards, to catch the snow. To inhibit the brake, it is sufficient to rotate the brake arms so as to raise the part, likely to hang the snow, above the sole of the ski. The branches are then in a sliding position.
  • the branches are held in the sliding position by the heel of the shoe, when it is engaged with the binding.
  • the shoe pivots about a transverse axis positioned at the front of the shoe.
  • the brake As soon as the skier raises the heel, he releases the brake.
  • the document FR 2,278,363 describes a device according to the preamble of claim 1.
  • the object of the invention is to provide an improved braking device.
  • One goal is to provide a reliable and secure braking device.
  • Another object is to reduce the number of components constituting the braking device.
  • the device can rotate the branches alternately in one direction or in the opposite direction.
  • This makes it possible to provide two stable positions for the braking arm or branches: an active braking position (in one direction) and a sliding position (in the other direction).
  • This construction does not require an additional locking piece which simplifies the design.
  • the absence of additional locking piece intended to keep the device in an unstable position makes it possible to reinforce the reliability of the mechanism.
  • This one then alternates between two stable configurations.
  • the locking of branches in sliding position is secure. Indeed, in conventional constructions, if the lock breaks, the branches automatically switch to an active braking position. In the proposed construction, there is no need for a lock.
  • the component parts are not very solicited, the dimensioning can be optimized.
  • the invention is illustrated through an embodiment shown in the Figures 1 to 15 . It relates to a braking device 1 assembled on a gliding device 2, for example, a ski.
  • the braking device is associated with a fastening of a boot 4 on the ski.
  • the binding comprises a front retaining device, called a "stop”, not shown, and a rear retaining device 3, called “heel”, illustrated in FIGS. Figures 1 and 2 .
  • the front and rear retainers are intended to secure respectively the front and back of the shoe with the gliding machine. In downhill configuration, the two retainers cooperate with the boot. In climbing configuration, only the front retainer cooperates with the boot.
  • a mark will also be used whose longitudinal or front / rear direction corresponds to the X axis, the transverse or right / left direction corresponds to the Y axis and the vertical direction or up / down direction corresponds to the Z axis.
  • the braking device 1 comprises a base 10 provided to be secured to the gliding board.
  • the base is fixed relative to the ski.
  • the base is fixed directly on the upper face 21 of the gliding board 2.
  • the base can be slidably mounted longitudinally relative to the ski, to allow the longitudinal adjustment of its position. Once adjusted, the base is then immobilized longitudinally to make it integral with the ski.
  • the base is fixed on the body of the heel piece 3.
  • the braking device 1 also comprises two braking branches 11a, 11b arranged symmetrically with respect to the median plane. longitudinal XZ of the ski.
  • the two braking branches 11a, 11b having identical operation, only a branch 11a will be described.
  • the other braking branch 11b is composed of similar elements. It is arranged symmetrically with respect to the median vertical plane XZ.
  • the braking branch 11a comprises a central cylindrical portion 111, extending along an axis of revolution Y111. On one side, at its outer end, the central portion 111 is extended by a cylindrical outer portion 112, in a first direction substantially perpendicular to the axis Y111. On the other side, at its median end, the central portion 111 is extended by a cylindrical inner portion 113, in a second direction substantially perpendicular to the axis Y111. This second direction is opposed to the first direction. The first and second directions are substantially parallel. The inner portion 113 is bent.
  • a cylindrical control portion 114 extending along an axis of revolution Y114, substantially parallel to the axis Y111 and distant by a length d11 of this axis Y111.
  • This control portion 114 will be called “control element” thereafter.
  • the four portions 111, 112, 113 and 114 constituting the braking branch 11a are combined without the same plane. In other words, the braking arm forms a "W" at right angles.
  • the braking branch 11a is assembled to the base 10 at its central portion 111 by a pivot type connection.
  • the base 10 thus comprises a lateral bearing 101 having an axis of revolution Y101, substantially transverse to the ski. This bearing makes it possible to guide the braking arm in rotation about its axis Y111.
  • the axis of revolution Y111 of the central portion and the axis of revolution Y101 of the bearing are substantially coincidental and define a first axis of rotation Y11 of the braking branch.
  • the base may comprise two parts to facilitate assembly of the braking branch.
  • the braking branch 11a and the base 10 are arranged relative to the ski so that the lateral position (Y) of the outer portion 112 is spaced from the lateral edge of the ski.
  • Y lateral position
  • the outer portion 112 tilts so that its free end protrudes from the sole 22 of the ski, downwards, to hang the snow.
  • This configuration of the braking device is designated as a braking configuration.
  • the movement is stopped or, at least braked, by the portion of the outer portion 112 projecting from the sole and interacting with the snow.
  • the free end is generally equipped with a tip 115.
  • the control element 114 controls the rotation of the brake arm.
  • the control element can move in a circular arc, centered on the axis of rotation Y11.
  • the braking device comprises a support plate 12, pivotally mounted relative to the base 10, about a second axis of rotation Y12.
  • the base 10 comprises bearings 102 for rotating the support plate 12 to rotate.
  • the second axis of rotation Y12 is substantially parallel to the first axis of rotation Y11 and offset towards the front of the base.
  • the support plate 12 comprises an upper surface 121 adapted to come into contact with a sole 41 of the ski boot 4.
  • the support plate comprises a guide housing 122 of the control element 114 a braking branch 11a, 11b.
  • This guide housing 122 is in the form of an oblong opening extending in a direction X122.
  • the guide housing is delimited longitudinally by a front face 1221 and a rear face 1222.
  • the height of the guide housing is slightly greater than the diameter of the control element 114.
  • the control element 114 is designed to fit into the guide housing 122 and to move along the oblong hole. Accordingly, when the support plate 12 rotates about its axis of rotation Y12, this causes the displacement of the control element 114 in its guide housing 122, which has the consequence, the rotation of the braking branch 11a, 11b associated around its axis of rotation Y11.
  • the braking device can take several configurations.
  • a first extreme configuration, called braking, is illustrated in figures 1 , 5 , 7 and 9 .
  • the support plate 12 is raised until the control element 114 abuts against the rear face 1222 of the guide housing 122.
  • the braking branch 11a can no longer rotate further in the first direction S1 .
  • the end of the outer portion 112 protrudes from the sole and is able to catch the snow.
  • the axis of revolution Y114 of the control element is positioned above the plane defined by the first axis of rotation Y11 and the second axis of rotation Y12.
  • the angle ⁇ between the plane of the braking branch and the upper surface 121 is less than 90 degrees and preferably less than 60 degrees, in order to facilitate the rotation of the support plate without being disturbed by the braking branch.
  • the control element 114 When the support plate 12 is pressed, the control element 114 is actuated via the guide housing 122. Thus, the guide element translates longitudinally inside the housing, which results in the rotation of the braking branch about its axis Y11, in the direction S2.
  • the braking device then reaches a tilting configuration in which the first axis of rotation Y11, the second axis of rotation Y12 and the axis of revolution Y114 of the control element are aligned in a same plan. In this example, they are aligned in the same plane as the plane of the braking branch.
  • This failover configuration is illustrated in the figures 11 and 13 .
  • the guide member 114 has reached an extreme position in its guide housing. To achieve this tilting configuration, it is necessary that the front face 1221 of the guide housing is sufficiently spaced from the rear face 1222 so as not to interfere with the displacement of the guide element.
  • the control element 114 returns towards the rear face 1222, inside its guide housing 122.
  • the rotation of the support plate is limited by stubborn.
  • a lower abutment surface 123 comes into contact with a portion of the braking arm, in this case, the inner portion 113.
  • the plate can abut against an arrangement of the base.
  • the outer portion 112 of the brake arm is raised above the upper face 21 of the ski. No more element of the brake disturbs the glide of the ski. In this case, the braking branch 11a can no longer rotate further in the second direction S2.
  • This second extreme configuration corresponds to the lock configuration of the braking device.
  • the axis of revolution Y114 of the control element is positioned below the plane defined by the first axis of rotation Y11 and the second axis of rotation Y12.
  • the term braking configuration of the braking device a configuration for which the outer portion 112 is sufficiently raised to no longer protrude from the sole 22 of the ski and therefore no longer slow the movement of the ski.
  • the lock configuration is a first glide configuration.
  • the device comprises an elastic means 13 acting on the control element 114 so as to return it to a defined position of the guide housing 122.
  • the elastic means is a tension spring of which one end is fixed on a shaft 124, supported by the support plate 12, at its rear end, and whose other end is fixed on a connecting piece 14 connecting the control element of a braking branch 11a to the control element of the other braking branch 11b.
  • the spring is centered laterally with respect to the backing plate. The spring is dimensioned so that it is in tension when the braking device is in its braking configuration, as illustrated in FIG. figure 7 .
  • the spring acts on the control element in an operating direction X13 varying according to the angular position of the braking branch (in the fixed XYZ reference linked to the ski).
  • the spring 13, the shaft 124 and the connecting piece 14 are arranged so that the elastic means 13 tends to bring the control member 114 back to the rear face 1222 of the guide housing 122, regardless of the configuration of the device braking.
  • This elastic means 13 thus allows the braking device to have two stable configurations.
  • the first stable configuration of the braking device corresponds to the braking configuration described above and represented in FIG. figure 7 .
  • the second stable configuration of the braking device corresponds to the locking configuration shown in FIG. figure 8 .
  • the devices are designed for a single unstable configuration range.
  • the backing plate always remains in its first positioning range and never reaches a position placing the device in its tilt configuration.
  • the elastic means only allows to cause the rotation of the braking branch in one direction S1. There is therefore only one stable position corresponding to the braking position.
  • the brake is locked in an unstable configuration. If the lock fails, the brake switches to its unique stable braking configuration.
  • the support plate is designed to move an amplitude covering at least the two positioning ranges defined above.
  • the base, the braking arm, the support plate and the elastic means are arranged so that the elastic means acts on the control element so as to cause the rotation of the braking arm in a first direction S1.
  • the base, the braking leg, the support plate and the elastic means are arranged so that the elastic means acts on the control element so as to cause the rotation of the braking branch in a second direction S2, opposite to the first direction of rotation.
  • the elastic means is a tension spring.
  • Other types of elastic means can be envisaged.
  • it may be springs working in compression.
  • the springs are placed at the front of the support plate, between the second axis of rotation Y12 of the support plate and the axis of revolution Y114 of the control element.
  • the elastic means may be a part having suitable elastic properties.
  • the connecting piece 14 is optional, the elastic means being directly connectable to one or both control elements 114.
  • the traction means 13 acts on the control element 114 in a direction X13 extending in a plane passing through the second axis of rotation Y12 of the support plate and by the axis of revolution.
  • Y114 of the control element 114 when housed in its guide housing 122. This construction makes it possible to reduce the parasitic friction during the displacement of the control element 114 in its guide housing 122.
  • the braking device comprises an actuating lever 15 for configuring the device.
  • the actuating lever 15 pivots, relative to the base, around a third hinge axis Y15, substantially parallel to the second hinge axis Y12 of the support plate and offset towards the rear of the base.
  • This third hinge axis Y15 is positioned between the first hinge axis Y11 and the second hinge axis Y12.
  • the base 10 comprises bearings 103 for guiding in rotation the operating lever 15.
  • the operating lever 15 is in the form of a "U” comprising two lateral branches 151a, 151b connected by a transverse bar 152
  • the third hinge axis Y15 passes through the free end of the lateral branches 151a, 151b of the "U" profile.
  • the actuating lever 15 comprises an extension 153, extending transversely, towards the other end.
  • This extension 153 supports a cam surface 154 surrounding the extension.
  • This cam surface 154 is arranged such that when the braking device is assembled, the cam surface 154 is positioned opposite a lower contact surface 125 of the backing plate 12.
  • the locking of the brake is obtained by the tilting back of the actuating lever 15.
  • the lever In the first configuration of the braking device, called braking, the lever is tilted forward until it abuts against the ski or the base.
  • This configuration is illustrated in the figures 9 , 1 , 5 , 7 and 14 .
  • the cam surface 154 is able to interact with the lower contact surface 125 so as to limit the rotation of the support plate 12 so that it can only remain in its first positioning range.
  • the backing plate can not reach a position placing the device in its tilt configuration.
  • the cam surface 154 acts as a latch that has tilted into an abutment configuration.
  • the device is in a classic alpine skiing configuration.
  • the heel 42 of the shoe 4 presses on the upper surface 121 of the support plate 12, this causes the rotation of the support plate and, consequently, the rotation of the braking branches 11a, 11b until that the outer portion 112 is raised enough to no longer project, downwards, the sole 22 of the ski 2.
  • the braking device is in a second sliding configuration, as shown in FIG. figure 15 . This position of the heel 42 is maintained by the heel 3.
  • the heel is triggered, the shoe disengages from the binding, the heel moves away from the support plate.
  • the spring 13 acts on the braking branches 11a, 11b to return them to a first position where they will interact with the snow.
  • the braking device is then in its first stable configuration corresponding to the braking configuration.
  • the actuating lever acts as a first actuator capable of interacting with the backing plate so as to cause rotation of the backing plate to tilt from its first positioning range to its second positioning range.
  • the support plate 12 switches to an unstable position.
  • the spring 13 then acts on the braking branches 11a, 11b to return them to a second position where they are set back relative to the upper face 21 of the ski 2.
  • the support plate 12 will automatically continue to rotate until abut against an element 113 of the braking device. In this case, the actuating lever 15 is no longer in contact with the support plate 12.
  • the braking device is then in its second stable configuration corresponding to the locking configuration which is illustrated in FIGS. figures 12 , 2 , 6 and 8 .
  • the support plate 12 will automatically continue its rotation until the control element 114 abuts against the rear face 1222 of its guide housing 122.
  • the braking device then returns to its first stable configuration corresponding to the configuration of the braking.
  • the brake is armed.
  • the operating lever acts as a second actuator that can interact with the backing plate to cause rotation of the backing plate to tilt from its second positioning range to its first positioning range.
  • the actuating lever 15 when the braking device is in its locking configuration, the actuating lever 15 has tilted backwards and bears against the base 10 or a part of the ski.
  • the actuating lever 15 has a bearing surface 155 oriented, upwards, on which the sole of the shoe can come to rest, at the heel.
  • This bearing surface 155 is remote from the upper face 21 of the ski so that, when the boot is resting on the actuating lever, the shoe is slightly inclined forwardly in order to improve the support on the ski during the ascension phases.
  • the operating lever thus acts as a conventional climbing wedge.
  • the bearing surface 155 is positioned so that, when the heel in contact with the actuating lever, the shoe 4 can not cooperate with a fastening element 31 of the heel piece 3.
  • the heel 3 comprises two rods 31 corresponding to the fixing element described above. Each free end of these rods is intended to be guided in a guide path formed in the rear face of the heel until it is positioned in a housing 43. Once the free end of the rods 31 is positioned in this housing 43 , the heel is engaged. The shoe is engaged with the heel that prevents vertical movement up the heel as the vertical force exerted by the heel remains below a trigger threshold.
  • the bearing surface 155 blocks the downward vertical movement of the bead 42 so that the free ends of the rods 31 can not be positioned in their respective housing 43 of the heel 42 of the shoe 4.
  • the fastening element of the heel piece is a mounted jaw rotating about a transverse axis.
  • the actuating lever 15 acts as a retractable wedge capable of interacting with a heel 42 of a boot 4 so as to limit the vertical displacement of the heel towards the gliding board so that the heel can not move. not engage with a fastener 31 of a heel 3 secured to the gliding board.
  • the boot 4 can not be in engagement with the heel piece 3.
  • This specificity brings a safety of use because it assures us that the user can not engage the heel when the braking device is in lock configuration. Therefore, when he wants to practice alpine skiing, he can not engage the fixation only when the brake is active or armed.
  • the actuating lever comprises indexing means relative to the base for holding the actuating lever in one or more stable positions.
  • the position of the lever completely folded forward this position corresponds to the braking configuration of the braking device. It can also be the position of the lever completely folded backwards, this position corresponds to the locking configuration of the braking device.
  • the indexing can be performed, for example, by a deformable pin cooperating with a complementary housing. Ramps can also be added to bring energization. Energization can also be achieved by an elastic means.
  • the holding means may be fastening means between the actuating lever and the base. It can be clips, magnets, a movable lock ... In a variant, the holding means can be fastening means between the support plate and the base. It can be clips, magnets, a movable lock ...
  • the holding means can be means of attachment between the actuating lever and the support plate. Again, it may be clips, magnets or a form interacting with a complementary shape due to the relative kinematics between these two parts, they do not rotate around the same axis of rotation. It is also possible to envisage a holding means acting directly on the braking limbs so as to limit their rotation.
  • the holding means can be actuated directly by the user or through an intermediate piece, such as, for example, the actuating lever 15.
  • the support plate 12 comprises lateral pins 126, projecting in a transverse direction, outwardly. These lateral lugs are intended to cooperate respectively with notches 156 formed in the inner face of the lateral branches 151a, 151b.
  • the operating lever can easily tilt into its rear position because the notches 156 are dimensioned to receive the lateral pins 126, without interference.
  • the dimensioning of the notches 156 is such that when the bearing plate is rotated forwards, the lugs 126 cooperate with the notches 156 so as to jam, which makes it possible to block the rotation of the plate.
  • the holding means is formed by an interaction between an element of the support plate 12, namely the lugs 126, and a member of an actuating lever 15, namely the notches 156.
  • the actuating lever moves in a direction distinct from that of the support plate.
  • the axis of rotation Y15 of the operating lever is distinct from that Y12 of the support plate.
  • the support plate can be translated.
  • the actuating lever must not translate in the same direction as the translation of the support plate. It can be envisaged that the support plate and the actuating lever have distinct movements. One turns while the other is translated.
  • the actuating lever 15 has several functionalities. It can act as a lock, a first actuator, a second actuator and a shim. Alternatively, each of these functions can be performed by a separate, separate piece. Similarly, the same room can perform one, two or three of the aforementioned functions.
  • the braking device has a simple conventional brake structure. This choice has essentially simplified the description. It is understood that the invention also extends to other types of brake.
  • the invention is particularly well suited to a so-called reentrant brake structure as illustrated in the documents EP 0 025 786 or EP 1 731 202 .
  • Incoming brakes are characterized by the fact that the outer portions of the braking limbs offset laterally when the braking device is in a gliding configuration, to come to be positioned above the upper face of the ski.
  • the connection between the braking arm and the base may be of sliding pivot type rather than pivot type.
  • the braking branch can pivot about the axis of rotation Y11 and / or translate laterally with respect to this axis.
  • Guide ramps are provided in the component parts of the brake to cooperate with a portion of the braking limbs to allow the desired kinematics.
  • the connection between the braking arm and the base is of the ball type, possibly with the possibility of moving the braking arm transversely.
  • the support plate 12 is a pivoting part.
  • the support plate may have another kinematics. It can have a translation movement or a combination of translation and rotation.
  • the invention is not limited to these embodiments. It is possible to combine these embodiments.

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  • Braking Arrangements (AREA)

Description

La présente invention concerne un dispositif de freinage pour fixation d'une planche de glisse telle qu'un ski. L'invention est plus particulièrement destinée pour un usage mixte de la planche de glisse, à savoir, un usage pour une pratique de type alpine et un usage pour une pratique de type randonnée. Dans le premier cas, le frein doit être continuellement opérationnel pour qu'il puisse s'activer et arrêter le déplacement du ski dès que le skieur déclenche ou déchausse la fixation. Dans le deuxième cas, le frein doit être inhibé pour que le frein reste inactif, lorsque le skieur soulève le talon de sa chaussure, afin de ne pas freiner son déplacement.The present invention relates to a braking device for fixing a gliding board such as a ski. The invention is more particularly intended for a mixed use of the gliding board, namely, a use for an alpine type practice and use for a hiking type of practice. In the first case, the brake must be continuously operational so that it can activate and stop the movement of the ski as soon as the skier triggers or loosens the binding. In the second case, the brake must be inhibited so that the brake remains inactive, when the skier raises the heel of his shoe, so as not to slow down his movement.

De manière connue, les dispositifs de freinage comprennent deux branches de freinage latérales. Chaque branche pivote autour d'un axe transversal au ski. Des moyens élastiques tendent à maintenir les branches dans une position active de freinage, dans laquelle les branches sont suffisamment inclinées par rapport à la semelle du ski pour qu'une partie dépasse de la semelle du ski, vers le bas, pour accrocher la neige. Pour inhiber le frein, il suffit de faire pivoter les branches de freinage de manière à relever la partie, susceptible d'accrocher la neige, au-dessus de la semelle du ski. Les branches sont alors dans une position de glisse.In known manner, the braking devices comprise two lateral braking branches. Each branch pivots around an axis transverse to the ski. Elastic means tend to maintain the branches in an active braking position, in which the branches are sufficiently inclined relative to the sole of the ski so that a portion protrudes from the sole of the ski, downwards, to catch the snow. To inhibit the brake, it is sufficient to rotate the brake arms so as to raise the part, likely to hang the snow, above the sole of the ski. The branches are then in a sliding position.

Lors d'une pratique de type alpine, les branches sont maintenues dans la position de glisse par le talon de la chaussure, lorsque celle-ci est en prise avec la fixation.In practice alpine style, the branches are held in the sliding position by the heel of the shoe, when it is engaged with the binding.

Lors d'une pratique de type randonnée, la chaussure pivote autour d'un axe transversal positionné à l'avant de la chaussure. En conséquence, dès que le skieur soulève le talon, il libère le frein. Pour éviter de freiner le ski à chaque pas, il faut alors prévoir un dispositif permettant de verrouiller le frein dans une configuration inactive dans laquelle les branches sont maintenues dans une position de glisse.In a hiking type of practice, the shoe pivots about a transverse axis positioned at the front of the shoe. As a result, as soon as the skier raises the heel, he releases the brake. To avoid braking the ski at each step, it is necessary to provide a device for locking the brake in an inactive configuration in which the branches are held in a sliding position.

Pour cela, de nombreux documents décrivent des dispositifs de freinage munis d'un verrou permettant de maintenir les branches dans une position de glisse. De telles constructions sont illustrées, par exemple, dans les documents EP 2 259 850 , WO 2012/024809 ou EP 2 666 525 .For this, many documents describe braking devices provided with a lock for maintaining the branches in a sliding position. Such constructions are illustrated, for example, in the documents EP 2 259 850 , WO 2012/024809 or EP 2 666 525 .

Toutes ces constructions se caractérisent par une pièce bloquant la rotation des branches pour les maintenir dans une position de glisse. Dans ces solutions, un moyen élastique exerce un effort sur les branches de manière à les faire pivoter seulement dans un sens de rotation. Ce qui signifie que la configuration verrouillée du frein est une position instable qui est maintenue uniquement par le verrou. Ainsi, le verrou est continuellement sollicité lorsqu'il bloque les branches. Le verrou doit être dimensionné en conséquence.All these constructions are characterized by a piece blocking the rotation of the branches to keep them in a sliding position. In these solutions, an elastic means exerts a force on the branches so as to rotate them only in a direction of rotation. This means that the locked brake configuration is an unstable position that is held only by the lock. Thus, the lock is continuously solicited when it blocks the branches. The lock must be dimensioned accordingly.

Le document FR 2 278 363 décrit un dispositif selon le préambule de la revendication 1. Le but de l'invention est de proposer un dispositif de freinage amélioré.The document FR 2,278,363 describes a device according to the preamble of claim 1. The object of the invention is to provide an improved braking device.

Un but est notamment de proposer un dispositif de freinage fiable et sécurisé.One goal is to provide a reliable and secure braking device.

Un autre but est de réduire le nombre de pièces constitutives du dispositif de freinage.Another object is to reduce the number of components constituting the braking device.

L'invention propose un article un dispositif de freinage pour planche de glisse, comprenant :

  • une embase prévue pour être solidarisée avec la planche de glisse,
  • au moins une branche de freinage apte à pivoter, par rapport à l'embase, autour d'un premier axe de rotation sensiblement transversal à la planche de glisse, la branche de freinage comprenant un élément de commande s'étendant selon un axe sensiblement parallèle au premier axe de rotation,
  • une plaque d'appui mobile par rapport à l'embase, la plaque d'appui comprenant un logement de guidage de l'élément de commande, la position de l'élément de commande dans le logement de guidage variant en fonction de la position angulaire de la branche de freinage,
  • un moyen élastique agissant sur l'élément de commande selon une direction d'actionnement variant en fonction de la position angulaire de la branche de freinage.
The invention proposes an article a braking device for a gliding board, comprising:
  • a base adapted to be secured to the gliding board,
  • at least one braking branch capable of pivoting relative to the base around a first axis of rotation substantially transverse to the gliding board, the braking branch comprising a control element extending along a substantially parallel axis at the first axis of rotation,
  • a support plate movable relative to the base, the support plate comprising a guide housing of the control element, the position of the control element in the guide housing varies according to the angular position of the braking branch,
  • an elastic means acting on the control element in a direction of actuation varying according to the angular position of the braking branch.

L'article est caractérisé par le fait que la plaque d'appui est conçue pour se déplacer d'une amplitude couvrant au moins deux plages de positionnement :

  • une première plage de positionnement pour laquelle l'embase, la branche de freinage, la plaque d'appui et le moyen élastique sont agencés de sorte que le moyen élastique agit sur l'élément de commande de manière à entrainer la rotation de la branche de freinage dans un premier sens et,
  • une deuxième plage de positionnement pour laquelle l'embase, la branche de freinage, la plaque d'appui et le moyen élastique sont agencés de sorte que le moyen élastique agit sur l'élément de commande de manière à entrainer la rotation de la branche de freinage dans un deuxième sens, inverse au premier sens de rotation.
The article is characterized by the fact that the support plate is designed to move with an amplitude covering at least two positioning ranges:
  • a first positioning range for which the base, the brake arm, the support plate and the elastic means are arranged so that the elastic means acts on the control element so as to cause the rotation of the armature braking in a first sense and,
  • a second positioning range for which the base, the brake arm, the support plate and the elastic means are arranged so that the elastic means acts on the control element so as to cause the rotation of the armature braking in a second direction, opposite to the first direction of rotation.

Grâce à l'invention, le dispositif peut faire tourner les branches alternativement dans un sens ou dans le sens inverse. Cela permet de prévoir deux positions stables pour le ou les branches de freinage : une position active de freinage (dans un sens) et une position de glisse (dans l'autre sens). Cette construction ne nécessite pas de pièce de verrouillage supplémentaire ce qui permet de simplifier la conception. Par ailleurs, l'absence de pièce de verrouillage supplémentaire destinée à maintenir le dispositif dans une position instable permet de renforcer la fiabilité du mécanisme. Celui-ci alterne alors entre deux configurations stables. Le blocage de branches en position de glisse est sécurisé. En effet, dans les constructions classiques, si le verrou casse, les branches basculent automatiquement dans une position active de freinage. Dans la construction proposée, il n'y a pas besoin de verrou. D'autre part, les pièces constitutives sont peu sollicitées, le dimensionnement peut donc être optimisé.Thanks to the invention, the device can rotate the branches alternately in one direction or in the opposite direction. This makes it possible to provide two stable positions for the braking arm or branches: an active braking position (in one direction) and a sliding position (in the other direction). This construction does not require an additional locking piece which simplifies the design. Moreover, the absence of additional locking piece intended to keep the device in an unstable position makes it possible to reinforce the reliability of the mechanism. This one then alternates between two stable configurations. The locking of branches in sliding position is secure. Indeed, in conventional constructions, if the lock breaks, the branches automatically switch to an active braking position. In the proposed construction, there is no need for a lock. On the other hand, the component parts are not very solicited, the dimensioning can be optimized.

Selon des aspects avantageux mais non obligatoires de l'invention, un tel dispositif de freinage peut incorporer une ou plusieurs des caractéristiques suivantes, prises dans toute combinaison techniquement admissible :

  • La plaque d'appui est apte à pivoter, par rapport à l'embase, autour d'un deuxième axe de rotation sensiblement parallèle au premier axe de rotation.
  • Le dispositif de freinage comprend un verrou pouvant basculer dans une configuration de butée pour laquelle le verrou est apte à interagir avec la plaque d'appui de sorte à limiter sa rotation pour qu'elle puisse uniquement rester dans sa première plage de positionnement.
  • Le dispositif de freinage comprend un premier actionneur pouvant interagir avec la plaque d'appui de sorte à entraîner la rotation de la plaque d'appui afin de la faire basculer de sa première plage de positionnement vers sa deuxième plage de positionnement.
  • Le dispositif de freinage comprend un deuxième actionneur pouvant interagir avec la plaque d'appui de sorte à entrainer la rotation de la plaque d'appui afin de la faire basculer de sa deuxième plage de positionnement vers sa première plage de positionnement.
  • Le verrou, le premier actionneur et le deuxième actionneur forment une seule et même pièce.
  • La pièce formant le verrou, le premier actionneur et le deuxième actionneur pivote, par rapport à l'embase, autour d'un troisième axe de rotation sensiblement parallèle au deuxième axe de rotation.
  • Le dispositif de freinage comprend une cale escamotable, apte à interagir avec un talon d'une chaussure de sorte à limiter le déplacement verticale du talon en direction de la planche de glisse afin que le talon ne puisse pas coopérer avec un élément de fixation d'une talonnière solidaire de la planche de glisse.
  • Le dispositif de freinage comprend un moyen de maintien permettant de maintenir la plaque d'appui dans sa deuxième plage de positionnement.
  • Le moyen de maintien est réalisé par une interaction entre un élément de la plaque d'appui et un élément d'un levier d'actionnement, le levier d'actionnement se déplaçant selon une direction distincte de celle de la plaque d'appui.
According to advantageous but non-obligatory aspects of the invention, such a braking device may incorporate one or more of the following features, taken in any technically permissible combination:
  • The support plate is pivotable relative to the base around a second axis of rotation substantially parallel to the first axis of rotation.
  • The braking device includes a latch that can be tilted into an abutment configuration for which the latch is able to interact with the backing plate so as to limit its rotation so that it can only remain in its first positioning range.
  • The braking device includes a first actuator that can interact with the backing plate to cause rotation of the backing plate to tilt from its first positioning range to its second positioning range.
  • The braking device comprises a second actuator capable of interacting with the support plate so as to cause rotation of the support plate in order to switch it from its second positioning range to its first positioning range.
  • The latch, the first actuator and the second actuator form a single piece.
  • The part forming the latch, the first actuator and the second actuator pivots, relative to the base, about a third axis of rotation substantially parallel to the second axis of rotation.
  • The braking device comprises a retractable wedge capable of interacting with a heel of a shoe so as to limit the vertical displacement of the heel in the direction of the gliding board so that the heel can not cooperate with a fastener element. a heel piece attached to the gliding board.
  • The braking device comprises a holding means for holding the support plate in its second positioning range.
  • The holding means is formed by an interaction between a bearing plate member and an actuating lever member, the actuating lever moving in a direction distinct from that of the bearing plate.

D'autres caractéristiques et avantages de l'invention seront mieux compris à l'aide de la description qui va suivre, en regard des dessins annexés illustrant, selon des formes de réalisation non limitatives, comment l'invention peut être réalisée, et dans lequel :

  • la figure 1 est une vue en perspective avant d'un ski équipé d'une talonnière et d'un dispositif de freinage conforme à l'invention, en configuration de freinage ;
  • la figure 2 est une vue en perspective avant du ski équipé de la figure 1, le dispositif de freinage étant verrouillé en configuration de glisse ;
  • la figure 3 est une vue en perspective éclatée du dispositif de freinage ;
  • la figure 4 est une vue de dessus du dispositif de freinage ;
  • la figure 5 et 6 sont des vues en coupe selon A-A de la figure 4 illustrant respectivement le dispositif de freinage en configuration de freinage et le dispositif de freinage en configuration verrouillée de glisse ;
  • la figure 7 et 8 sont des vues en coupe selon B-B de la figure 4 illustrant respectivement le dispositif de freinage en configuration de freinage et le dispositif de freinage en configuration verrouillée de glisse ;
  • les figures 9, 10, 11 et 12 sont des vues en coupe selon C-C de la figure 4 illustrant les différentes étapes de basculement du dispositif de freinage d'une configuration de freinage vers une configuration verrouillée de glisse ;
  • la figure 13 est une vue en coupe selon C-C de la figure 4 illustrant une étape de basculement du dispositif de freinage d'une configuration verrouillée de glisse vers une configuration de freinage ;
  • la figure 14 est une vue en coupe selon D-D de la figure 4 illustrant le dispositif de freinage en configuration verrouillée de glisse ;
  • la figure 15 est une vue en coupe selon C-C de la figure 4 illustrant le dispositif de freinage en configuration non verrouillée de glisse ;
  • la figure 16 est une vue arrière d'une chaussure en appui sur le dispositif de freinage verrouillé en configuration de glisse.
Other features and advantages of the invention will be better understood with the aid of the following description, with reference to the accompanying drawings illustrating, according to non-limiting embodiments, how the invention can be realized, and in which :
  • the figure 1 is a perspective view before a ski equipped with a heel and a braking device according to the invention, in brake configuration;
  • the figure 2 is a perspective view before the ski equipped with the figure 1 the braking device being locked in sliding configuration;
  • the figure 3 is an exploded perspective view of the braking device;
  • the figure 4 is a top view of the braking device;
  • the figure 5 and 6 are sectional views according to AA of the figure 4 illustrating respectively the braking device in the braking configuration and the braking device in the locked slip configuration;
  • the figure 7 and 8 are sectional views according to BB of the figure 4 illustrating respectively the braking device in the braking configuration and the braking device in the locked slip configuration;
  • the Figures 9, 10 , 11 and 12 are sectional views according to CC of the figure 4 illustrating the different steps of switching the braking device from a braking configuration to a locked slide configuration;
  • the figure 13 is a sectional view according to CC of the figure 4 illustrating a step of switching the braking device from a locked slide configuration to a braking configuration;
  • the figure 14 is a sectional view according to DD of the figure 4 illustrating the braking device in a locked slide configuration;
  • the figure 15 is a sectional view according to CC of the figure 4 illustrating the braking device in an unlocked slide configuration;
  • the figure 16 is a rear view of a shoe resting on the braking device locked in sliding configuration.

L'invention est illustrée à travers un mode de réalisation représenté dans les figures 1 à 15. Elle concerne un dispositif de freinage 1 assemblé sur un engin de glisse 2, par exemple, un ski. Dans le cas présent, le dispositif de freinage est associé à une fixation d'une chaussure 4 sur le ski. La fixation comprend un dispositif de retenue avant, appelée « butée », non représentée, et un dispositif de retenue arrière 3, appelée « talonnière », illustrée dans les figures 1 et 2. Les dispositifs de retenue avant et arrière sont destinés à solidariser respectivement l'avant et l'arrière de la chaussure avec l'engin de glisse. En configuration de descente, les deux dispositifs de retenue coopèrent avec la chaussure. En configuration de montée, seul le dispositif de retenue avant coopère avec la chaussure.The invention is illustrated through an embodiment shown in the Figures 1 to 15 . It relates to a braking device 1 assembled on a gliding device 2, for example, a ski. In this case, the braking device is associated with a fastening of a boot 4 on the ski. The binding comprises a front retaining device, called a "stop", not shown, and a rear retaining device 3, called "heel", illustrated in FIGS. Figures 1 and 2 . The front and rear retainers are intended to secure respectively the front and back of the shoe with the gliding machine. In downhill configuration, the two retainers cooperate with the boot. In climbing configuration, only the front retainer cooperates with the boot.

Dans la suite de la description, il sera fait usage de termes tels que « horizontal », « vertical », « longitudinal », « transversal », « supérieur », « inférieur », « haut », « bas », « avant », « arrière ». Ces termes doivent être interprétés en fait de façon relative en relation avec la position normale que le dispositif de freinage occupe sur un ski, et la direction d'avancement normale du ski. Par exemple, « longitudinal » s'entend par rapport à l'axe longitudinal du ski.In the rest of the description, terms such as "horizontal", "vertical", "longitudinal", "transversal", "superior", "lower", "up", "down", "before" will be used. , " back ". These terms must in fact be interpreted in a relative manner in relation to the normal position that the braking device occupies on a ski, and the normal direction of advancement of the ski. For example, "longitudinal" refers to the longitudinal axis of the ski.

On utilisera également un repère dont la direction longitudinale ou avant/arrière correspond à l'axe X, la direction transversale ou droite/gauche correspond à l'axe Y et la direction verticale ou haut/bas correspond à l'axe Z.A mark will also be used whose longitudinal or front / rear direction corresponds to the X axis, the transverse or right / left direction corresponds to the Y axis and the vertical direction or up / down direction corresponds to the Z axis.

Le dispositif de freinage 1 comprend une embase 10 prévue pour être solidarisée avec la planche de glisse. Ainsi, lorsque l'embase est assemblée sur le ski, l'embase est fixe par rapport au ski. Dans cet exemple, l'embase est fixée directement sur la face supérieure 21 de la planche de glisse 2. Alternativement, l'embase peut être montée coulissante longitudinalement, par rapport au ski, pour permettre l'ajustement longitudinal de sa position. Une fois réglée, l'embase est alors immobilisée longitudinalement pour la rendre solidaire du ski. Dans une variante, l'embase est fixée sur le corps de la talonnière 3.The braking device 1 comprises a base 10 provided to be secured to the gliding board. Thus, when the base is assembled on the ski, the base is fixed relative to the ski. In this example, the base is fixed directly on the upper face 21 of the gliding board 2. Alternatively, the base can be slidably mounted longitudinally relative to the ski, to allow the longitudinal adjustment of its position. Once adjusted, the base is then immobilized longitudinally to make it integral with the ski. In a variant, the base is fixed on the body of the heel piece 3.

Dans ce mode de réalisation, le dispositif de freinage 1 comprend également deux branches de freinage 11a, 11b, disposées symétriquement par rapport au plan médian longitudinal XZ du ski. Les deux branches de freinage 11a, 11b présentant un fonctionnement identique, seule une branche 11a va être décrite. L'autre branche de freinage 11b est composée d'éléments analogues. Elle est disposée symétriquement par rapport au plan vertical médian XZ.In this embodiment, the braking device 1 also comprises two braking branches 11a, 11b arranged symmetrically with respect to the median plane. longitudinal XZ of the ski. The two braking branches 11a, 11b having identical operation, only a branch 11a will be described. The other braking branch 11b is composed of similar elements. It is arranged symmetrically with respect to the median vertical plane XZ.

La branche de freinage 11a comprend une portion centrale cylindrique 111, s'étendant selon un axe de révolution Y111. D'un côté, à son extrémité externe, la portion centrale 111 se prolonge par une portion externe cylindrique 112, selon une première direction sensiblement perpendiculaire à l'axe Y111. De l'autre côté, à son extrémité médiane, la portion centrale 111 se prolonge par une portion interne cylindrique 113, selon une deuxième direction sensiblement perpendiculaire à l'axe Y111. Cette deuxième direction est opposée à la première direction. Les première et deuxième directions sont sensiblement parallèles. La portion interne 113 est coudée. Elle se poursuit ainsi par une portion de commande cylindrique 114, s'étendant selon un axe de révolution Y114, sensiblement parallèle à l'axe Y111 et distante d'une longueur d11 de cet axe Y111. Cette portion de commande 114 sera appelée « élément de commande » par la suite. Les quatre portions 111, 112, 113 et 114 constituant la branche de freinage 11a sont confondues sans un même plan. Autrement dit, la branche de freinage forme un « W » à angles droits.The braking branch 11a comprises a central cylindrical portion 111, extending along an axis of revolution Y111. On one side, at its outer end, the central portion 111 is extended by a cylindrical outer portion 112, in a first direction substantially perpendicular to the axis Y111. On the other side, at its median end, the central portion 111 is extended by a cylindrical inner portion 113, in a second direction substantially perpendicular to the axis Y111. This second direction is opposed to the first direction. The first and second directions are substantially parallel. The inner portion 113 is bent. It is thus continued by a cylindrical control portion 114, extending along an axis of revolution Y114, substantially parallel to the axis Y111 and distant by a length d11 of this axis Y111. This control portion 114 will be called "control element" thereafter. The four portions 111, 112, 113 and 114 constituting the braking branch 11a are combined without the same plane. In other words, the braking arm forms a "W" at right angles.

La branche de freinage 11a est assemblée à l'embase 10 au niveau de sa portion centrale 111 par une liaison de type pivot. L'embase 10 comprend ainsi un palier latéral 101 ayant un axe de révolution Y101, sensiblement transversal au ski. Ce palier permet de guider en rotation la branche de freinage autour de son axe Y111. Lorsque le frein est assemblé, l'axe de révolution Y111 de la portion centrale et l'axe de révolution Y101 du palier sont sensiblement confondus et définissent un premier axe de rotation Y11 de la branche de freinage. Pour réaliser le palier latéral 101, l'embase peut comprendre deux parties afin de faciliter assemblage de la branche de freinage.The braking branch 11a is assembled to the base 10 at its central portion 111 by a pivot type connection. The base 10 thus comprises a lateral bearing 101 having an axis of revolution Y101, substantially transverse to the ski. This bearing makes it possible to guide the braking arm in rotation about its axis Y111. When the brake is assembled, the axis of revolution Y111 of the central portion and the axis of revolution Y101 of the bearing are substantially coincidental and define a first axis of rotation Y11 of the braking branch. To achieve the lateral bearing 101, the base may comprise two parts to facilitate assembly of the braking branch.

La branche de freinage 11a et l'embase 10 sont agencés par rapport au ski de sorte que la position latérale (Y) de la portion externe 112 soit écartée du bord latéral du ski. Ainsi, lorsque la branche de freinage tourne autour de son axe Y11, dans un premier sens S1, la portion externe 112 s'incline de sorte que son extrémité libre dépasse de la semelle 22 du ski, vers le bas, pour accrocher la neige. On désigne cette configuration du dispositif de freinage comme configuration de freinage. Le déplacement est stoppé ou, tout au moins freiné, par la partie de la portion externe 112 faisant saillie de la semelle et interagissant avec la neige. Pour améliorer l'accroche, l'extrémité libre est généralement équipée d'un embout 115. D'autre part, lorsque la branche de freinage tourne autour de son axe Y11, dans un deuxième sens S2, inverse au premier sens S1, la portion externe 112 revient dans une position en retrait, vers le haut, par rapport à la semelle 22 du ski. Dans cette configuration du dispositif de freinage, dite configuration de glisse, aucune partie de la branche de freinage ne fait saillie de la semelle 22 du ski. Le dispositif de freinage ne fait pas entrave au déplacement du ski.The braking branch 11a and the base 10 are arranged relative to the ski so that the lateral position (Y) of the outer portion 112 is spaced from the lateral edge of the ski. Thus, when the braking arm rotates about its axis Y11, in a first direction S1, the outer portion 112 tilts so that its free end protrudes from the sole 22 of the ski, downwards, to hang the snow. This configuration of the braking device is designated as a braking configuration. The movement is stopped or, at least braked, by the portion of the outer portion 112 projecting from the sole and interacting with the snow. To improve the grip, the free end is generally equipped with a tip 115. On the other hand, when the braking arm rotates about its axis Y11, in a second direction S2, inverse to the first direction S1, the portion 112 exterior returns to a position set back, upwards, with respect to the sole 22 of the ski. In this configuration of the braking device, said gliding configuration, no part of the braking branch protrudes from the sole 22 of the ski. The braking device does not interfere with the movement of the ski.

Pour faire tourner la branche de freinage, on utilise la partie interne de la branche de freinage et plus particulièrement l'élément de commande 114. En étant orienté sensiblement parallèlement à l'axe Y11 et à une distance d11 de celui-ci, l'élément de commande 114 permet de contrôler la rotation de la branche de freinage. Ainsi, l'élément de commande peut se déplacer selon un arc de cercle, centré sur l'axe de rotation Y11.To rotate the braking arm, use is made of the inner part of the braking arm and more particularly the control element 114. Being oriented substantially parallel to the axis Y11 and at a distance d11 thereof, the control element 114 controls the rotation of the brake arm. Thus, the control element can move in a circular arc, centered on the axis of rotation Y11.

Pour contrôler le déplacement de l'élément de commande 114, le dispositif de freinage comprend une plaque d'appui 12, montée pivotante, par rapport à l'embase 10, autour d'un deuxième axe de rotation Y12. L'embase 10 comprend des paliers 102 permettant de guider en rotation la plaque d'appui 12. Le deuxième axe de rotation Y12 est sensiblement parallèle au premier axe de rotation Y11 et décalée vers l'avant de l'embase. La plaque d'appui 12 comprend une surface supérieure 121 apte à venir en contact avec une semelle 41 de la chaussure de ski 4. De chaque côté latéral, la plaque d'appui comprend un logement de guidage 122 de l'élément de commande 114 d'une branche de freinage 11a, 11b. Ce logement de guidage 122 se présente sous la forme d'une ouverture oblongue s'étendant selon une direction X122. Le logement de guidage est délimité longitudinalement par une face avant 1221 et une face arrière 1222. La hauteur du logement de guidage est légèrement supérieure au diamètre de l'élément de commande 114. L'élément de commande 114 est conçu pour s'insérer dans le logement de guidage 122 et pour se déplacer le long du trou oblong. En conséquence, lorsque la plaque d'appui 12 tourne autour de son axe de rotation Y12, cela entraine le déplacement de l'élément de commande 114 dans son logement de guidage 122, ce qui a pour conséquence, la rotation de la branche de freinage 11a, 11b associée autour de son axe de rotation Y11.To control the movement of the control element 114, the braking device comprises a support plate 12, pivotally mounted relative to the base 10, about a second axis of rotation Y12. The base 10 comprises bearings 102 for rotating the support plate 12 to rotate. The second axis of rotation Y12 is substantially parallel to the first axis of rotation Y11 and offset towards the front of the base. The support plate 12 comprises an upper surface 121 adapted to come into contact with a sole 41 of the ski boot 4. On each lateral side, the support plate comprises a guide housing 122 of the control element 114 a braking branch 11a, 11b. This guide housing 122 is in the form of an oblong opening extending in a direction X122. The guide housing is delimited longitudinally by a front face 1221 and a rear face 1222. The height of the guide housing is slightly greater than the diameter of the control element 114. The control element 114 is designed to fit into the guide housing 122 and to move along the oblong hole. Accordingly, when the support plate 12 rotates about its axis of rotation Y12, this causes the displacement of the control element 114 in its guide housing 122, which has the consequence, the rotation of the braking branch 11a, 11b associated around its axis of rotation Y11.

Le dispositif de freinage peut prendre plusieurs configurations.The braking device can take several configurations.

Une première configuration extrême, dite de freinage, est illustrée aux figures 1, 5, 7 et 9. La plaque d'appui 12 est relevée jusqu'à ce que l'élément de commande 114 bute contre la face arrière 1222 du logement de guidage 122. Dans ce cas, la branche de freinage 11a ne peut plus tourner davantage dans le premier sens S1. L'extrémité de la portion externe 112 dépasse de la semelle et est apte à accrocher la neige. Dans cette configuration, l'axe de révolution Y114 de l'élément de commande se positionne au-dessus du plan défini par le premier axe de rotation Y11 et le deuxième axe de rotation Y12. L'angle α entre le plan de la branche de freinage et la surface supérieure 121 est inférieur à 90 degrés et préférentiellement, inférieur à 60 degrés, afin de faciliter la rotation de la plaque d'appui sans être gêner par la branche de freinage.A first extreme configuration, called braking, is illustrated in figures 1 , 5 , 7 and 9 . The support plate 12 is raised until the control element 114 abuts against the rear face 1222 of the guide housing 122. In this case, the braking branch 11a can no longer rotate further in the first direction S1 . The end of the outer portion 112 protrudes from the sole and is able to catch the snow. In this configuration, the axis of revolution Y114 of the control element is positioned above the plane defined by the first axis of rotation Y11 and the second axis of rotation Y12. The angle α between the plane of the braking branch and the upper surface 121 is less than 90 degrees and preferably less than 60 degrees, in order to facilitate the rotation of the support plate without being disturbed by the braking branch.

Lorsqu'on appuie sur la plaque d'appui 12, on agit sur l'élément de commande 114 via le logement de guidage 122. Ainsi, l'élément de guidage se translate longitudinalement à l'intérieur du logement ce qui a pour conséquence la rotation de la branche de freinage autour de son axe Y11, dans le sens S2. Le dispositif de freinage atteint alors une configuration de basculement dans laquelle le premier axe de rotation Y11, le deuxième axe de rotation Y12 et l'axe de révolution Y114 de l'élément de commande sont alignés dans un même plan. Dans cet exemple, ils sont alignés dans le même plan que le plan de la branche de freinage. Cette configuration de basculement est illustrée dans les figures 11 et 13. L'élément de guidage 114 a atteint une position extrême dans son logement de guidage. Pour obtenir cette configuration de basculement, il est nécessaire que la face avant 1221 du logement de guidage soit suffisamment écartée de la face arrière 1222 de sorte à ne pas interférer dans le déplacement de l'élément de guidage.When the support plate 12 is pressed, the control element 114 is actuated via the guide housing 122. Thus, the guide element translates longitudinally inside the housing, which results in the rotation of the braking branch about its axis Y11, in the direction S2. The braking device then reaches a tilting configuration in which the first axis of rotation Y11, the second axis of rotation Y12 and the axis of revolution Y114 of the control element are aligned in a same plan. In this example, they are aligned in the same plane as the plane of the braking branch. This failover configuration is illustrated in the figures 11 and 13 . The guide member 114 has reached an extreme position in its guide housing. To achieve this tilting configuration, it is necessary that the front face 1221 of the guide housing is sufficiently spaced from the rear face 1222 so as not to interfere with the displacement of the guide element.

Lorsqu'on poursuit la rotation de la plaque d'appui 12, l'élément de commande 114 revient vers la face arrière 1222, à l'intérieur de son logement de guidage 122. La rotation de la plaque d'appui est cependant limitée par une butée. Dans cet exemple, comme on le voit à la figure 6, une surface de butée inférieure 123 vient en contact avec une partie de la branche de freinage, en l'occurrence, la portion interne 113. Alternativement, la plaque peut venir en butée contre un aménagement de l'embase. Lorsque la plaque d'appui est en butée, la portion externe 112 de la branche de freinage est relevée au-dessus de la face supérieure 21 du ski. Plus aucun élément du frein ne vient perturber la glisse du ski. Dans ce cas, la branche de freinage 11a ne peut plus tourner davantage dans le deuxième sens S2. Cette deuxième configuration extrême, illustrée aux figures 2, 6, 8 et 12 correspond à la configuration de verrouillage du dispositif de freinage. Dans cette configuration, l'axe de révolution Y114 de l'élément de commande se positionne en dessous du plan défini par le premier axe de rotation Y11 et le deuxième axe de rotation Y12.When the rotation of the support plate 12 is continued, the control element 114 returns towards the rear face 1222, inside its guide housing 122. However, the rotation of the support plate is limited by stubborn. In this example, as seen in figure 6 , a lower abutment surface 123 comes into contact with a portion of the braking arm, in this case, the inner portion 113. Alternatively, the plate can abut against an arrangement of the base. When the support plate is in abutment, the outer portion 112 of the brake arm is raised above the upper face 21 of the ski. No more element of the brake disturbs the glide of the ski. In this case, the braking branch 11a can no longer rotate further in the second direction S2. This second extreme configuration, illustrated in figures 2 , 6 , 8 and 12 corresponds to the lock configuration of the braking device. In this configuration, the axis of revolution Y114 of the control element is positioned below the plane defined by the first axis of rotation Y11 and the second axis of rotation Y12.

On désigne par configuration de glisse du dispositif de freinage, une configuration pour laquelle la portion externe 112 est suffisamment relevée pour ne plus faire saillie de la semelle 22 du ski et donc de ne plus freiner le déplacement du ski. En conséquence, la configuration de verrouillage, décrite précédemment, est une première configuration de glisse.The term braking configuration of the braking device, a configuration for which the outer portion 112 is sufficiently raised to no longer protrude from the sole 22 of the ski and therefore no longer slow the movement of the ski. As a result, the lock configuration, described above, is a first glide configuration.

Pour assurer le fonctionnement du frein, le dispositif comprend un moyen élastique 13 agissant sur l'élément de commande 114 de manière à le ramener vers une position définie du logement de guidage 122. Dans cet exemple, le moyen élastique est un ressort de traction dont une extrémité est fixée sur un arbre 124, supportée par la plaque d'appui 12, à son extrémité arrière, et dont l'autre extrémité est fixée sur une pièce de liaison 14 reliant l'élément de commande d'une branche de freinage 11a à l'élément de commande de l'autre branche de freinage 11b. Le ressort est centré latéralement par rapport à la plaque d'appui. Le ressort est dimensionné de sorte qu'il est en traction lorsque le dispositif de freinage est dans sa configuration de freinage, comme illustré à la figure 7. Le ressort agit sur l'élément de commande selon une direction d'actionnement X13 variant en fonction de la position angulaire de la branche de freinage (dans le repère XYZ fixe lié au ski). Le ressort 13, l'arbre 124 et la pièce de liaison 14 sont agencés de sorte que le moyen élastique 13 tend à ramener l'élément de commande 114 vers la face arrière 1222 du logement de guidage 122, quelle que soit la configuration du dispositif de freinage.To ensure the operation of the brake, the device comprises an elastic means 13 acting on the control element 114 so as to return it to a defined position of the guide housing 122. In this example, the elastic means is a tension spring of which one end is fixed on a shaft 124, supported by the support plate 12, at its rear end, and whose other end is fixed on a connecting piece 14 connecting the control element of a braking branch 11a to the control element of the other braking branch 11b. The spring is centered laterally with respect to the backing plate. The spring is dimensioned so that it is in tension when the braking device is in its braking configuration, as illustrated in FIG. figure 7 . The spring acts on the control element in an operating direction X13 varying according to the angular position of the braking branch (in the fixed XYZ reference linked to the ski). The spring 13, the shaft 124 and the connecting piece 14 are arranged so that the elastic means 13 tends to bring the control member 114 back to the rear face 1222 of the guide housing 122, regardless of the configuration of the device braking.

Ce moyen élastique 13 permet ainsi au dispositif de freinage de disposer de deux configurations stables.This elastic means 13 thus allows the braking device to have two stable configurations.

La première configuration stable du dispositif de freinage correspond à la configuration de freinage décrite précédemment et représentée à la figure 7.The first stable configuration of the braking device corresponds to the braking configuration described above and represented in FIG. figure 7 .

Lorsque la plaque d'appui pivote dans une première plage de positionnement, plaçant le dispositif de freinage dans une configuration entre cette configuration de freinage et la configuration de basculement décrite précédemment, on obtient une première configuration instable du dispositif de freinage. Dès lors qu'on relâche la plaque d'appui, le moyen élastique 13 ramène le dispositif dans sa première configuration stable. Le moyen élastique 13 agit ainsi sur l'élément de commande 114 de manière à entrainer la rotation de la branche de freinage dans un premier sens S1 jusqu'à ce que l'élément de commande arrive en butée contre la face arrière 1222 de son logement de guidage 122. Cette première plage de configuration instable du dispositif de freinage définit ainsi la première plage de positionnement de la plaque d'appui.When the bearing plate pivots in a first positioning range, placing the braking device in a configuration between this braking configuration and the previously described tilt configuration, a first unstable configuration of the braking device is obtained. As soon as the support plate is released, the elastic means 13 brings the device back to its first stable configuration. The elastic means 13 thus acts on the control element 114 so as to cause the rotation of the braking arm in a first direction S1 until the control element comes into abutment against the rear face 1222 of its housing. This first unstable configuration range of the braking device thus defines the first positioning range of the support plate.

Lorsque la plaque d'appui pivote davantage que précédemment, dans une deuxième plage de positionnement, de manière à placer le dispositif de freinage dans une configuration au-delà de la configuration de basculement et jusqu'à la configuration de verrouillage décrite précédemment, on obtient également une deuxième configuration instable du dispositif de freinage. Cependant, dans cette plage de rotation de la plaque, le moyen élastique 13 tend à ramener le dispositif dans sa deuxième configuration stable. Le moyen élastique 13 agit ainsi sur l'élément de commande 114 de manière à entrainer la rotation de la branche de freinage dans un deuxième sens S2, inverse au premier sens de rotation S1, jusqu'à ce que l'élément de commande arrive en butée contre un élément du dispositif. Dans cet exemple, l'élément de commande vient en appui sur la portion interne 113 des branches de freinage. Cette deuxième plage de configuration instable du dispositif de freinage définit la deuxième plage de positionnement de la plaque d'appui.When the bearing plate pivots more than before, in a second positioning range, so as to place the braking device in a configuration beyond the failover configuration and up to the locking configuration described above, one obtains also a second unstable configuration of the braking device. However, in this range of rotation of the plate, the elastic means 13 tends to bring the device back into its second stable configuration. The elastic means 13 thus acts on the control element 114 so as to cause the rotation of the brake arm in a second direction S2, which is the opposite of the first direction of rotation S1, until the control element arrives in stop against an element of the device. In this example, the control element bears on the inner portion 113 of the braking branches. This second unstable configuration range of the braking device defines the second positioning range of the support plate.

La deuxième configuration stable du dispositif de freinage correspond à la configuration de verrouillage représentée à la figure 8.The second stable configuration of the braking device corresponds to the locking configuration shown in FIG. figure 8 .

Dans les constructions classiques des freins de l'art antérieur, les dispositifs sont conçus pour une seule plage de configuration instable. La plaque d'appui reste toujours dans sa première plage de positionnement et n'atteint jamais une position plaçant le dispositif dans sa configuration de basculement. Le moyen élastique permet uniquement d'entrainer la rotation de la branche de freinage dans un seul sens S1. Il n'y a donc qu'une seule position stable correspondant à la position de freinage. Dans ces solutions, le frein est verrouillé dans une configuration instable. Si le verrou est défaillant, le frein bascule dans son unique configuration de freinage stable.In the conventional brake constructions of the prior art, the devices are designed for a single unstable configuration range. The backing plate always remains in its first positioning range and never reaches a position placing the device in its tilt configuration. The elastic means only allows to cause the rotation of the braking branch in one direction S1. There is therefore only one stable position corresponding to the braking position. In these solutions, the brake is locked in an unstable configuration. If the lock fails, the brake switches to its unique stable braking configuration.

Selon l'invention, la plaque d'appui est conçue pour se déplacer d'une amplitude couvrant au moins les deux plages de positionnement définies précédemment. Pour la première plage de positionnement de la plaque d'appui, l'embase, la branche de freinage, la plaque d'appui et le moyen élastique sont agencés de sorte que le moyen élastique agit sur l'élément de commande de manière à entrainer la rotation de la branche de freinage dans un premier sens S1. Pour la deuxième plage de positionnement de la plage d'appui, l'embase, la branche de freinage, la plaque d'appui et le moyen élastique sont agencés de sorte que le moyen élastique agit sur l'élément de commande de manière à entrainer la rotation de la branche de freinage dans un deuxième sens S2, inverse au premier sens de rotation. Cette caractéristique permet ainsi d'obtenir les deux configurations stables décrites précédemment.According to the invention, the support plate is designed to move an amplitude covering at least the two positioning ranges defined above. For the first positioning range of the support plate, the base, the braking arm, the support plate and the elastic means are arranged so that the elastic means acts on the control element so as to cause the rotation of the braking arm in a first direction S1. For the second positioning range of the support pad, the base, the braking leg, the support plate and the elastic means are arranged so that the elastic means acts on the control element so as to cause the rotation of the braking branch in a second direction S2, opposite to the first direction of rotation. This characteristic thus makes it possible to obtain the two stable configurations described above.

Dans le mode de réalisation, le moyen élastique est un ressort de traction. On peut envisager d'autres types de moyen élastique. Par exemple, ce peut être des ressorts travaillant en compression. Dans ce cas, les ressorts sont placés à l'avant de la plaque d'appui, entre le deuxième axe de rotation Y12 de la plaque d'appui et l'axe de révolution Y114 de l'élément de commande. On peut également utiliser deux ressorts, montés en parallèle, et disposés symétriquement par rapport à un plan médian vertical XZ de la plaque d'appui. Le moyen élastique peut être une pièce ayant des propriétés élastiques adaptées. Par ailleurs, la pièce de liaison 14 est facultative, le moyen élastique pouvant directement être relié à un ou aux deux éléments de commande 114.In the embodiment, the elastic means is a tension spring. Other types of elastic means can be envisaged. For example, it may be springs working in compression. In this case, the springs are placed at the front of the support plate, between the second axis of rotation Y12 of the support plate and the axis of revolution Y114 of the control element. It is also possible to use two springs, mounted in parallel, and arranged symmetrically with respect to a vertical median plane XZ of the support plate. The elastic means may be a part having suitable elastic properties. Moreover, the connecting piece 14 is optional, the elastic means being directly connectable to one or both control elements 114.

Selon un mode de réalisation, le moyen de traction 13 agit sur l'élément de commande 114 selon une direction X13 s'étendant dans un plan passant par le deuxième axe de rotation Y12 de la plaque d'appui et par l'axe de révolution Y114 de l'élément de commande 114 lorsqu'il est logé dans son logement de guidage 122. Cette construction permet de réduire les frottements parasites lors du déplacement de l'élément de commande 114 dans son logement de guidage 122.According to one embodiment, the traction means 13 acts on the control element 114 in a direction X13 extending in a plane passing through the second axis of rotation Y12 of the support plate and by the axis of revolution. Y114 of the control element 114 when housed in its guide housing 122. This construction makes it possible to reduce the parasitic friction during the displacement of the control element 114 in its guide housing 122.

Dans cet exemple, le dispositif de freinage comprend un levier d'actionnement 15 permettant de configurer le dispositif.In this example, the braking device comprises an actuating lever 15 for configuring the device.

Le levier d'actionnement 15 pivote, par rapport à l'embase, autour d'un troisième axe d'articulation Y15, sensiblement parallèle au deuxième axe d'articulation Y12 de la plaque d'appui et décalé vers l'arrière de l'embase. Ce troisième axe d'articulation Y15 est positionné entre le premier axe d'articulation Y11 et le deuxième axe d'articulation Y12. L'embase 10 comprend des paliers 103 permettant de guider en rotation le levier d'actionnement 15. Le levier d'actionnement 15 se présente sous la forme d'un « U » comprenant deux branches latérales 151a, 151b reliées par une barre transversale 152. Le troisième axe d'articulation Y15 passe par l'extrémité libre des branches latérales 151a, 151b du profil en « U ». A chacune de ces extrémités, le levier d'actionnement 15 comprend une extension 153, s'étendant transversalement, en direction de l'autre extrémité. Cette extension 153 supporte une surface de came 154, entourant l'extension. Cette surface de came 154 est agencée de sorte que lorsque le dispositif de freinage est assemblé, la surface de came 154 est positionné en vis-à-vis d'une surface de contact inférieure 125 de la plaque d'appui 12.The actuating lever 15 pivots, relative to the base, around a third hinge axis Y15, substantially parallel to the second hinge axis Y12 of the support plate and offset towards the rear of the base. This third hinge axis Y15 is positioned between the first hinge axis Y11 and the second hinge axis Y12. The base 10 comprises bearings 103 for guiding in rotation the operating lever 15. The operating lever 15 is in the form of a "U" comprising two lateral branches 151a, 151b connected by a transverse bar 152 The third hinge axis Y15 passes through the free end of the lateral branches 151a, 151b of the "U" profile. At each of these ends, the actuating lever 15 comprises an extension 153, extending transversely, towards the other end. This extension 153 supports a cam surface 154 surrounding the extension. This cam surface 154 is arranged such that when the braking device is assembled, the cam surface 154 is positioned opposite a lower contact surface 125 of the backing plate 12.

Nous allons maintenant décrire le basculement du dispositif d'une configuration de freinage vers une configuration de verrouillage.We will now describe the switching of the device from a braking configuration to a locking configuration.

Le verrouillage du frein est obtenu par le basculement vers l'arrière du levier d'actionnement 15.The locking of the brake is obtained by the tilting back of the actuating lever 15.

Dans la première configuration du dispositif de freinage, dite de freinage, le levier est basculé vers l'avant jusqu'à buter contre le ski ou l'embase. Cette configuration est illustrée dans les figures 9, 1, 5, 7 et 14. Dans ce cas, la surface de came 154 est apte à interagir avec surface de contact inférieure 125 de sorte à limiter la rotation la plaque d'appui 12 pour qu'elle puisse uniquement rester dans sa première plage de positionnement. La plaque d'appui ne peut pas atteindre une position plaçant le dispositif dans sa configuration de basculement. La surface de came 154 agit comme un verrou ayant basculé dans une configuration de butée. Le dispositif est dans une configuration classique de ski alpin. Lorsque le talon 42 de la chaussure 4 appuie sur la surface supérieure 121 de la plaque d'appui 12, cela provoque la rotation de la plaque d'appui et, en conséquence, la rotation des branches de freinage 11a, 11b jusqu'à ce que la portion externe 112 se relève suffisamment pour ne plus faire saillie, vers le bas, de la semelle 22 du ski 2. Le dispositif de freinage est dans une deuxième configuration de glisse, comme le montre la figure 15. Cette position du talon 42 est maintenue par la talonnière 3. Lorsque la talonnière est déclenchée, la chaussure se désengage de la fixation, le talon s'éloigne de la plaque d'appui. Le ressort 13 agit sur les branches de freinage 11a, 11b pour les ramener dans une première position où elles vont interagir avec la neige. Le dispositif de freinage est alors dans sa première configuration stable correspondant à la configuration de freinage.In the first configuration of the braking device, called braking, the lever is tilted forward until it abuts against the ski or the base. This configuration is illustrated in the figures 9 , 1 , 5 , 7 and 14 . In this case, the cam surface 154 is able to interact with the lower contact surface 125 so as to limit the rotation of the support plate 12 so that it can only remain in its first positioning range. The backing plate can not reach a position placing the device in its tilt configuration. The cam surface 154 acts as a latch that has tilted into an abutment configuration. The device is in a classic alpine skiing configuration. When the heel 42 of the shoe 4 presses on the upper surface 121 of the support plate 12, this causes the rotation of the support plate and, consequently, the rotation of the braking branches 11a, 11b until that the outer portion 112 is raised enough to no longer project, downwards, the sole 22 of the ski 2. The braking device is in a second sliding configuration, as shown in FIG. figure 15 . This position of the heel 42 is maintained by the heel 3. When the heel is triggered, the shoe disengages from the binding, the heel moves away from the support plate. The spring 13 acts on the braking branches 11a, 11b to return them to a first position where they will interact with the snow. The braking device is then in its first stable configuration corresponding to the braking configuration.

Lorsqu'on tourne le levier d'actionnement 15, pour le faire basculer vers l'arrière, celui-ci vient en appui contre la surface supérieure 121 de la plaque d'appui, comme on le voit à la figure 10.When turning the actuating lever 15, to tilt it backwards, it bears against the upper surface 121 of the support plate, as can be seen in FIG. figure 10 .

Lorsqu'on poursuit la rotation du levier d'actionnement 15, celui-ci entraine la rotation de la plaque d'appui 12 jusqu'à une position plaçant le dispositif dans sa configuration de basculement, comme on le voit à la figure 11. La plaque d'appui peut atteindre ce positionnement car la rotation du levier d'actionnement 15 a entrainé la rotation de la surface de came 154 qui n'est plus apte à interférer avec la surface de contact inférieure 125. Le levier d'actionnement agit comme un premier actionneur pouvant interagir avec la plaque d'appui de sorte à entrainer la rotation de la plaque d'appui afin de la faire basculer de sa première plage de positionnement vers sa deuxième plage de positionnement.When the rotation of the operating lever 15 is continued, the latter causes the rotation of the support plate 12 to a position placing the device in its tilting configuration, as seen in FIG. figure 11 . The support plate can reach this position because the rotation of the operating lever 15 has caused the rotation of the cam surface 154 which is no longer capable of interfering with the lower contact surface 125. The actuating lever acts as a first actuator capable of interacting with the backing plate so as to cause rotation of the backing plate to tilt from its first positioning range to its second positioning range.

En poursuivant la rotation du levier d'actionnement 15, la plaque d'appui 12 bascule dans une position instable. Le ressort 13 agit alors sur les branches de freinage 11a, 11b pour les ramener dans une deuxième position où elles sont en retrait par rapport à la face supérieure 21 du ski 2. La plaque d'appui 12 va automatiquement poursuivre sa rotation jusqu'à venir en butée contre un élément 113 du dispositif de freinage. Dans ce cas, le levier d'actionnement 15 n'est plus en contact avec la plaque d'appui 12. Le dispositif de freinage est alors dans sa deuxième configuration stable correspondant à la configuration de verrouillage qui est illustrée dans les figures 12, 2, 6 et 8.By continuing the rotation of the operating lever 15, the support plate 12 switches to an unstable position. The spring 13 then acts on the braking branches 11a, 11b to return them to a second position where they are set back relative to the upper face 21 of the ski 2. The support plate 12 will automatically continue to rotate until abut against an element 113 of the braking device. In this case, the actuating lever 15 is no longer in contact with the support plate 12. The braking device is then in its second stable configuration corresponding to the locking configuration which is illustrated in FIGS. figures 12 , 2 , 6 and 8 .

Pour armer le dispositif de freinage, c'est-à-dire, le rendre actif, il faut basculer vers l'avant le levier d'actionnement 15. En effet, lorsqu'on tourne le levier d'actionnement pour le rabattre vers l'avant, le levier atteint une position angulaire pour laquelle la surface de came 154 vient en contact avec la surface de contact inférieure 125 de la plaque de d'appui. Si on continue la rotation du levier d'actionnement, la surface de came entraine la rotation de la plaque d'appui jusqu'à ce que le dispositif de freinage atteigne sa configuration de basculement, comme représentée à la figure 13. En conséquence, en poursuivant légèrement la rotation du levier, on amène la plaque d'appui dans une position instable correspondant à la première plage instable du dispositif de freinage. Le ressort 13 agit sur les branches de freinage 11a, 11b pour les ramener dans une première position où elles vont interagir avec la neige. La plaque d'appui 12 va automatiquement poursuivre sa rotation jusqu'à ce que l'élément de commande 114 bute contre la face arrière 1222 de son logement de guidage 122. Le dispositif de freinage retrouve alors sa première configuration stable correspondant à la configuration de freinage. Le frein est armé. Le levier d'actionnement agit comme un deuxième actionneur pouvant interagir avec la plaque d'appui de sorte à entrainer la rotation de la plaque d'appui afin de la faire basculer de sa deuxième plage de positionnement vers sa première plage de positionnement.To arm the braking device, that is to say, make it active, it is necessary to tilt the actuating lever 15 forward. Indeed, when the operating lever is turned to fold it back to the before, the lever reaches an angular position for which the cam surface 154 comes into contact with the lower contact surface 125 of the backing plate. If the rotation of the operating lever is continued, the cam surface causes rotation of the backing plate until the braking device reaches its tilt configuration, as shown in FIG. figure 13 . Consequently, by slightly continuing the rotation of the lever, the support plate is brought into an unstable position corresponding to the first unstable range of the braking device. The spring 13 acts on the braking branches 11a, 11b to return them to a first position where they will interact with the snow. The support plate 12 will automatically continue its rotation until the control element 114 abuts against the rear face 1222 of its guide housing 122. The braking device then returns to its first stable configuration corresponding to the configuration of the braking. The brake is armed. The operating lever acts as a second actuator that can interact with the backing plate to cause rotation of the backing plate to tilt from its second positioning range to its first positioning range.

Avantageusement, lorsque le dispositif de freinage est dans sa configuration de verrouillage, le levier d'actionnement 15 a basculé vers l'arrière et vient en appui contre l'embase 10 ou une partie du ski. Dans cette configuration, le levier d'actionnement 15 présente une surface d'appui 155 orientée, vers le haut, sur laquelle la semelle de la chaussure peut venir s'appuyer, au niveau du talon. Cette surface d'appui 155 est distante de la face supérieure 21 du ski de sorte que, lorsque la chaussure est en appui sur le levier d'actionnement, la chaussure est légèrement inclinée vers l'avant afin d'améliorer l'appui sur le ski lors des phases d'ascension. Le levier de fonctionnement agit ainsi comme une cale de montée classique. Préférentiellement, avec cet agencement, la surface d'appui 155 est positionnée de sorte que, lorsque le talon en en contact avec le levier d'actionnement, la chaussure 4 ne puisse pas coopérer avec un élément de fixation 31 de la talonnière 3. Dans cet exemple, la talonnière 3 comprend deux tiges 31 correspondant à l'élément de fixation décrit précédemment. Chaque extrémité libre de ces tiges est destinée à être guidée dans un chemin de guidage ménagé dans la face arrière du talon jusqu'à venir se positionner dans un logement 43. Une fois que l'extrémité libre des tiges 31 est positionnée dans ce logement 43, la talonnière est enclenchée. La chaussure est en prise avec la talonnière qui empêche le mouvement vertical vers le haut du talon tant que l'effort vertical exercé par le talon reste inférieur à un seuil de déclenchement. Lorsque le levier d'actionnement 15 a basculé à l'arrière, la surface d'appui 155 bloque le mouvement vertical vers le bas du talon 42 de sorte que les extrémités libres des tiges 31 ne puissent pas se positionner dans leur logement 43 respectif du talon 42 de la chaussure 4. Cette configuration est illustrée à la figure 16. Selon un autre mode de réalisation, l'élément de fixation de la talonnière est une mâchoire montée rotative autour d'un axe transversal. Dans tous les cas, le levier d'actionnement 15 agit comme une cale escamotable apte à interagir avec un talon 42 d'une chaussure 4 de sorte à limiter le déplacement vertical du talon en direction de la planche de glisse afin que le talon ne puisse pas s'enclencher avec un élément de fixation 31 d'une talonnière 3 solidaire de la planche de glisse.Advantageously, when the braking device is in its locking configuration, the actuating lever 15 has tilted backwards and bears against the base 10 or a part of the ski. In this configuration, the actuating lever 15 has a bearing surface 155 oriented, upwards, on which the sole of the shoe can come to rest, at the heel. This bearing surface 155 is remote from the upper face 21 of the ski so that, when the boot is resting on the actuating lever, the shoe is slightly inclined forwardly in order to improve the support on the ski during the ascension phases. The operating lever thus acts as a conventional climbing wedge. Preferably, with this arrangement, the bearing surface 155 is positioned so that, when the heel in contact with the actuating lever, the shoe 4 can not cooperate with a fastening element 31 of the heel piece 3. In this example, the heel 3 comprises two rods 31 corresponding to the fixing element described above. Each free end of these rods is intended to be guided in a guide path formed in the rear face of the heel until it is positioned in a housing 43. Once the free end of the rods 31 is positioned in this housing 43 , the heel is engaged. The shoe is engaged with the heel that prevents vertical movement up the heel as the vertical force exerted by the heel remains below a trigger threshold. When the actuating lever 15 has tilted backwards, the bearing surface 155 blocks the downward vertical movement of the bead 42 so that the free ends of the rods 31 can not be positioned in their respective housing 43 of the heel 42 of the shoe 4. This configuration is illustrated in FIG. figure 16 . According to another embodiment, the fastening element of the heel piece is a mounted jaw rotating about a transverse axis. In all cases, the actuating lever 15 acts as a retractable wedge capable of interacting with a heel 42 of a boot 4 so as to limit the vertical displacement of the heel towards the gliding board so that the heel can not move. not engage with a fastener 31 of a heel 3 secured to the gliding board.

Ainsi, lorsque le dispositif de freinage est dans une configuration de verrouillage ou première configuration de glisse, la chaussure 4 ne peut pas être en prise avec la talonnière 3. Cette spécificité apporte une sécurité d'utilisation car cela nous assure que l'utilisateur ne peut pas enclencher la talonnière lorsque le dispositif de freinage est en configuration de verrouillage. En conséquence, lorsqu'il veut pratiquer du ski alpin, il ne peut enclencher la fixation seulement lorsque le frein est actif ou armé.Thus, when the braking device is in a locking configuration or a first gliding configuration, the boot 4 can not be in engagement with the heel piece 3. This specificity brings a safety of use because it assures us that the user can not engage the heel when the braking device is in lock configuration. Therefore, when he wants to practice alpine skiing, he can not engage the fixation only when the brake is active or armed.

Selon un mode de réalisation, le levier d'actionnement comprend des moyens d'indexation par rapport à l'embase permettant de maintenir le levier d'actionnement dans une ou plusieurs positions stables. Par exemple, la position du levier complètement rabattu vers l'avant, cette position correspond à la configuration de freinage du dispositif de freinage. Ce peut également être la position du levier complètement rabattu vers l'arrière, cette position correspond à la configuration de verrouillage du dispositif de freinage. Entre les positions stables, on peut prévoir une énergisation du levier d'actionnement pour que celui-ci bascule vers une position stable proche lorsqu'il est dans une position intermédiaire. L'indexation peut être réalisée, par exemple, par un ergot déformable coopérant avec un logement complémentaire. Des rampes peuvent également être ajoutées pour apporter l'énergisation. L'énergisation peut également être réalisée par un moyen élastique.According to one embodiment, the actuating lever comprises indexing means relative to the base for holding the actuating lever in one or more stable positions. For example, the position of the lever completely folded forward, this position corresponds to the braking configuration of the braking device. It can also be the position of the lever completely folded backwards, this position corresponds to the locking configuration of the braking device. Between the stable positions, it can provide an energization of the actuating lever so that it switches to a close stable position when it is in an intermediate position. The indexing can be performed, for example, by a deformable pin cooperating with a complementary housing. Ramps can also be added to bring energization. Energization can also be achieved by an elastic means.

Afin d'éviter le déverrouillage involontaire du dispositif de freinage, celui-ci peut comprendre un moyen de maintien permettant de maintenir le dispositif de freinage dans sa deuxième plage de configuration instable. Le déverrouillage involontaire peut, par exemple, se produire par une action sur les branches de freinage, notamment, en appuyant vers le bas sur les portions externes repliées. Pour conserver cette configuration de verrouillage, il importe de limiter la rotation de la plaque d'appui pour qu'elle reste dans sa deuxième plage de positionnement, autrement dit, qu'elle n'atteigne pas une position plaçant le dispositif dans sa configuration de basculement. Le moyen de maintien peut être des moyens d'accroche entre le levier d'actionnement et l'embase. Ce peut être des clips, des aimants, un verrou mobile... Dans une variante, le moyen de maintien peut être des moyens d'accroche entre la plaque d'appui et l'embase. Ce peut être des clips, des aimants, un verrou mobile... Alternativement, le moyen de maintien peut être des moyens d'accroche entre le levier d'actionnement et la plaque d'appui. Là aussi, ce peut être des clips, des aimants ou une forme interagissant avec une forme complémentaire du fait de la cinématique relative entre ces deux pièces, celles-ci ne pivotant par autour du même axe de rotation. On peut également envisager un moyen de maintien agissant directement sur les branches de freinage de manière à limiter leur rotation. Le moyen de maintien peut être actionné directement par l'utilisateur ou par le biais d'une pièce intermédiaire, comme par exemple, le levier d'actionnement 15.To avoid unintentional unlocking of the braking device, it may comprise a holding means for maintaining the braking device in its second unstable configuration range. Unintentional unlocking can, for example, occur by an action on the braking limbs, in particular by pressing down on the folded external portions. To maintain this locking configuration, it is important to limit the rotation of the support plate so that it remains in its second positioning range, in other words, it does not reach a position placing the device in its configuration. failover. The holding means may be fastening means between the actuating lever and the base. It can be clips, magnets, a movable lock ... In a variant, the holding means can be fastening means between the support plate and the base. It can be clips, magnets, a movable lock ... Alternatively, the holding means can be means of attachment between the actuating lever and the support plate. Again, it may be clips, magnets or a form interacting with a complementary shape due to the relative kinematics between these two parts, they do not rotate around the same axis of rotation. It is also possible to envisage a holding means acting directly on the braking limbs so as to limit their rotation. The holding means can be actuated directly by the user or through an intermediate piece, such as, for example, the actuating lever 15.

Dans l'exemple illustré, notamment à la figure 14, la plaque d'appui 12 comprend des ergots latéraux 126, faisant saillie selon une direction transversale, vers l'extérieur. Ces ergots latéraux sont destinés à coopérer respectivement avec des encoches 156 ménagées dans la face interne des branches latérales 151a, 151b. Lorsque la plaque d'appui 12 a basculé dans une position stable correspondant à la configuration de verrouillage du dispositif de freinage, le levier d'actionnement peut facilement basculer dans sa position arrière car les encoches 156 sont dimensionnées pour recevoir les ergots latéraux 126, sans interférence. Cependant, le dimensionnement des encoches 156 est tel que lorsque l'on fait tourner la plaque d'appui vers l'avant, les ergots 126 coopèrent avec les encoches 156 de manière à se coincer ce qui permet de bloquer la rotation de la plaque d'appui pour qu'elle reste dans sa deuxième plage de positionnement. Cette construction permet d'avoir un verrouillage autobloquant des branches de freinage. En effet, le fonctionnement est irréversible. Ainsi, on peut agir librement sur le levier d'actionnement dans un sens et entrainer la rotation de la plaque d'appui dans le même sens. On peut également agir librement sur le levier d'actionnement dans l'autre sens. Cependant, lorsqu'on agit sur la plaque d'appui dans l'autre sens, la rotation de celle-ci est bloquée par le moyen de maintien. Et, dans ce cas, plus on force la rotation de la plaque d'appui dans l'autre sens, plus on bloque la cinématique. Ainsi, le moyen de maintien est réalisé par une interaction entre un élément de la plaque d'appui 12, à savoir les ergots 126, et un élément d'un levier d'actionnement 15, à savoir les encoches 156. Pour obtenir l'auto-blocage, le levier d'actionnement se déplace selon une direction distincte de celle de la plaque d'appui. Ici, l'axe de rotation Y15 du levier d'actionnement est distinct de celui Y12 de la plaque d'appui. Alternativement, la plaque d'appui peut se translater. Dans ce cas, le levier d'actionnement ne doit pas se translater selon la même direction que la translation de la plaque d'appui. On peut envisager que la plaque d'appui et le levier d'actionnement ont des mouvements distincts. L'un tourne alors que l'autre se translate.In the example illustrated, especially in figure 14 , the support plate 12 comprises lateral pins 126, projecting in a transverse direction, outwardly. These lateral lugs are intended to cooperate respectively with notches 156 formed in the inner face of the lateral branches 151a, 151b. When the support plate 12 has tilted to a stable position corresponding to the locking configuration of the braking device, the operating lever can easily tilt into its rear position because the notches 156 are dimensioned to receive the lateral pins 126, without interference. However, the dimensioning of the notches 156 is such that when the bearing plate is rotated forwards, the lugs 126 cooperate with the notches 156 so as to jam, which makes it possible to block the rotation of the plate. support for it to stay in its second positioning range. This construction makes it possible to have a self-locking locking of the braking limbs. Indeed, the operation is irreversible. Thus, it can act freely on the actuating lever in one direction and cause the rotation of the support plate in the same direction. One can also act freely on the operating lever in the other direction. However, when acting on the support plate in the other direction, the rotation thereof is blocked by the holding means. And, in this case, the more one forces the rotation of the support plate in the other direction, the more one blocks the kinematics. Thus, the holding means is formed by an interaction between an element of the support plate 12, namely the lugs 126, and a member of an actuating lever 15, namely the notches 156. To obtain the self-locking, the actuating lever moves in a direction distinct from that of the support plate. Here, the axis of rotation Y15 of the operating lever is distinct from that Y12 of the support plate. Alternatively, the support plate can be translated. In this case, the actuating lever must not translate in the same direction as the translation of the support plate. It can be envisaged that the support plate and the actuating lever have distinct movements. One turns while the other is translated.

Dans le mode de réalisation illustré, nous avons vu que le levier d'actionnement 15 présente plusieurs fonctionnalités. Il peut agir comme un verrou, un premier actionneur, un deuxième actionneur et une cale. Dans une variante, chacune de ces fonctions peut être réalisée par une pièce indépendante, distincte. De même, une même pièce peut réaliser une, deux ou trois des fonctions précitées.In the illustrated embodiment, we have seen that the actuating lever 15 has several functionalities. It can act as a lock, a first actuator, a second actuator and a shim. Alternatively, each of these functions can be performed by a separate, separate piece. Similarly, the same room can perform one, two or three of the aforementioned functions.

Dans la description, le dispositif de freinage présente une structure de frein classique simple. Ce choix a permis essentiellement de simplifier la description. Il est bien entendu que l'invention s'étend également à d'autres typologies de frein. Par exemple, l'invention est notamment très bien adaptée à une structure de frein dit rentrant comme celui illustré dans les documents EP 0 025 786 ou EP 1 731 202 . Les freins rentrants se caractérisent par le fait que les portions externes des branches de freinage se décalent latéralement, lorsque le dispositif de freinage est dans une configuration de glisse, pour venir se positionner au-dessus de la face supérieure du ski. Dans ce cas, la liaison entre la branche de freinage et l'embase peut être de type pivot glissant plutôt que de type pivot. La branche de freinage peut pivoter autour de l'axe de rotation Y11 et/ou se translater latéralement par rapport à cet axe. Des rampes de guidage sont ménagées dans les pièces constitutives du frein pour coopérer avec une partie des branches de freinage afin de permettre la cinématique souhaitée. Dans une autre variante, la liaison entre la branche de freinage et l'embase est de type rotule avec éventuellement, la possibilité de déplacer la branche de freinage transversalement.In the description, the braking device has a simple conventional brake structure. This choice has essentially simplified the description. It is understood that the invention also extends to other types of brake. For example, the invention is particularly well suited to a so-called reentrant brake structure as illustrated in the documents EP 0 025 786 or EP 1 731 202 . Incoming brakes are characterized by the fact that the outer portions of the braking limbs offset laterally when the braking device is in a gliding configuration, to come to be positioned above the upper face of the ski. In this case, the connection between the braking arm and the base may be of sliding pivot type rather than pivot type. The braking branch can pivot about the axis of rotation Y11 and / or translate laterally with respect to this axis. Guide ramps are provided in the component parts of the brake to cooperate with a portion of the braking limbs to allow the desired kinematics. In another variant, the connection between the braking arm and the base is of the ball type, possibly with the possibility of moving the braking arm transversely.

Dans la description, il est fait référence à une notion de « sensiblement » pour caractériser l'agencement d'élément par rapport à un référentiel : un axe ou un élément étant « sensiblement » parallèle, perpendiculaire ou transversal. Cette notion signifie que l'orientation peut varier d'un angle de plus ou moins 30 degrés. Par exemple, avec un frein dit rentrant, la cinématique des branches de freinage est complexe ce qui signifie que les branches de freinage ne tournent pas nécessairement, et tout le temps, autour d'un axe transversal. De même, les branches de freinage peuvent comprendre des portions agencées différemment, avec un angle spécifique entre ces portions. Dès lors, il est souhaitable d'introduire une tolérance dans cette caractéristique d'agencement pour couvrir les variantes de construction portant sur le même concept inventif.In the description, reference is made to a notion of "substantially" to characterize the element arrangement with respect to a reference frame: an axis or element being "substantially" parallel, perpendicular or transverse. This notion means that the orientation can vary by an angle of plus or minus 30 degrees. For example, with a so-called re-entrant brake, the kinematics of the brake arms is complex, which means that the braking arms do not necessarily rotate, and all the time, around a transverse axis. Similarly, the braking branches may comprise portions arranged differently, with a specific angle between these portions. Therefore, it is desirable to introduce a tolerance in this arrangement feature to cover construction variants of the same inventive concept.

Dans cet exemple, la plaque d'appui 12 est une pièce pivotante. Alternativement, la plaque d'appui peut avoir une autre cinématique. Elle peut avoir un mouvement de translation ou encore, une combinaison de translation et de rotation.In this example, the support plate 12 is a pivoting part. Alternatively, the support plate may have another kinematics. It can have a translation movement or a combination of translation and rotation.

L'invention n'est pas limitée à ces modes de réalisation. Il est possible de combiner ces modes de réalisation.The invention is not limited to these embodiments. It is possible to combine these embodiments.

L'invention n'est pas limitée aux modes de réalisation précédemment décrits mais s'étend à tous les modes de réalisation couverts par les revendications annexées.The invention is not limited to the previously described embodiments but extends to all the embodiments covered by the appended claims.

NomenclatureNomenclature

  1. 1- Dispositif de freinage
    • 10- Embase
      • 101- Palier d'une branche de freinage
      • 102- Palier de la plaque d'appui
      • 103- Palier du levier d'actionnement
    • 11a, 11b- Branche de freinage
      • 111- Portion centrale
      • 112- Portion externe
      • 113- Portion interne
      • 114- Elément de commande
      • 115- Embout
    • 12- Plaque d'appui
      • 121- Surface supérieure
      • 122- Logement de guidage
        • 1221- Face avant
        • 1222- Face arrière
      • 123- Surface de butée inférieure
      • 124- Arbre
      • 125- Surface de contact inférieure
      • 126- Ergot latéral
    • 13- Moyen élastique
    • 14- Pièce de liaison
    • 15- Levier d'actionnement
      • 151a, 151b- Branche latérale
      • 152- Barre transversale
      • 153- Extension
      • 154- Surface de came
      • 155- Surface d'appui
      • 156- Encoche
    1- Braking device
    • 10- Base
      • 101- Bearing of a braking branch
      • 102- Bearing of the support plate
      • 103- Bearing of the operating lever
    • 11a, 11b- Braking branch
      • 111- Central portion
      • 112- External portion
      • 113- Internal portion
      • 114- Control element
      • 115- Tip
    • 12- Support plate
      • 121- Upper surface
      • 122- Guide housing
        • 1221- Front face
        • 1222- Rear panel
      • 123- Lower stop surface
      • 124- Tree
      • 125- Lower contact area
      • 126- Lateral lug
    • 13- Elastic medium
    • 14- Connecting piece
    • 15- Actuation lever
      • 151a, 151b- Lateral branch
      • 152- Crossbar
      • 153- Extension
      • 154- Cam surface
      • 155- Support surface
      • 156- Notch
  2. 2- Planche de glisse
    • 21- Face supérieure
    • 22- Semelle
    2- Sliding board
    • 21- Upper face
    • 22- Sole
  3. 3- Talonnière
    • 31- Elément de fixation
    3- Heel
    • 31- Fixing element
  4. 4- Chaussure
    • 41- Semelle
    • 42- Talon
    • 43- Logement
    4- Shoe
    • 41- Sole
    • 42- Heel
    • 43- Housing

Claims (10)

  1. Braking device (1) for a gliding board (2), comprising:
    - a base (10) designed to be secured to the gliding board,
    - at least one brake arm (11a, 11b) able to pivot, with respect to the base, about a first axis of rotation (Y11) substantially transverse to the gliding board, the brake arm comprising a control element (114) extending along an axis (Y114) substantially parallel to the first axis of rotation,
    - an elastic means (13)
    - a pressure plate (12) able to move with respect to the base, the pressure plate comprising a guide housing (122) for the control element,
    the pressure plate being designed to move through an amplitude of movement that covers at least two positioning ranges:
    - a first positioning range for which the base, the brake arm, the pressure plate and the elastic means are arranged in such a way that the elastic means acts on the control element in such a way as to cause the brake arm to rotate in a first direction (S1), and
    - a second positioning range for which the base, the brake arm, the pressure plate and the elastic means are arranged in such a way that the elastic means acts on the control element in such a way as to cause the brake arm to rotate in a second direction (S2) that is the opposite to the first direction of rotation, characterized in that:
    - the position of the control element in the guide housing varies according to the angular position of the brake arm,
    - the elastic means (13) acts on the control element in an actuation direction (X13) that varies according to the angular position of the brake arm.
  2. Braking device (1) according to Claim 1, characterized in that the pressure plate is able to pivot, with respect to the base, about a second axis of rotation (Y12) substantially parallel to the first axis of rotation.
  3. Braking device (1) according to one of the preceding claims, characterized in that it comprises a lock (15), able to swing into a configuration of abutment for which the lock is able to interact with the pressure plate so as to limit the rotation of the latter so that it can only remain in its first positioning range.
  4. Braking device (1) according to one of the preceding claims, characterized in that it comprises a first actuator (15) able to interact with the pressure plate so as to cause the pressure plate to rotate so as to cause it to swing from its first positioning range towards its second positioning range.
  5. Braking device (1) according to one of the preceding claims, characterized in that it comprises a second actuator (15) able to interact with the pressure plate so as to cause the pressure plate to rotate so as to make it swing from its second positioning range towards its first positioning range.
  6. Braking device (1) according to the combination of Claims 3, 4 and 5, characterized in that the lock, the first actuator and the second actuator form one and the same single component (15).
  7. Braking device (1) according to the preceding claim, characterized in that the component forming the lock, the first actuator and the second actuator pivots, with respect to the base, about a third axis of rotation (Y15) substantially parallel to the second axis of rotation (Y12).
  8. Braking device (1) according to one of the preceding claims, characterized in that it comprises a retractable block (15), able to interact with a heel (42) of a boot (2) so as to limit the vertical movement of the heel in the direction of the gliding board so that the heel cannot collaborate with a binding element (31) of a heel piece (3) secured to the gliding board.
  9. Braking device (1) according to one of the preceding claims, characterized in that it comprises a retaining means (126, 156) that allows the pressure plate to be kept in its second positioning range.
  10. Braking device (1) according to the preceding claim, characterized in that the retaining means is achieved by interaction between an element (126) of the pressure plate (12) and an element (156) of an actuating lever (15), the actuating lever moving in a direction distinct from that of the pressure plate.
EP16001752.1A 2015-08-27 2016-08-08 Braking device for snowboard binding Active EP3135350B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1501787A FR3040308B1 (en) 2015-08-27 2015-08-27 BRAKING DEVICE FOR FIXING A SLIDING BOARD

Publications (2)

Publication Number Publication Date
EP3135350A1 EP3135350A1 (en) 2017-03-01
EP3135350B1 true EP3135350B1 (en) 2018-07-25

Family

ID=55072708

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16001752.1A Active EP3135350B1 (en) 2015-08-27 2016-08-08 Braking device for snowboard binding

Country Status (3)

Country Link
US (1) US9868047B2 (en)
EP (1) EP3135350B1 (en)
FR (1) FR3040308B1 (en)

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Publication number Priority date Publication date Assignee Title
EP3827887A1 (en) * 2019-11-29 2021-06-02 Pierre Gignoux Rear attachment element for ski mountaineering

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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Also Published As

Publication number Publication date
US9868047B2 (en) 2018-01-16
US20170056755A1 (en) 2017-03-02
FR3040308A1 (en) 2017-03-03
EP3135350A1 (en) 2017-03-01
FR3040308B1 (en) 2017-08-11

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