FR2784593A1 - Shoe binding for snowboard has support plate attached to board and engaged by spring loaded anchor on front of shoe - Google Patents

Abstract

The shoe binding for a snowboard has a support plate (6) attached to the board with front and rear fixings to retain the shoe. The shoe has front and rear anchors to mate with the plate. The front anchor has a spring-loaded hook so that the shoe can be placed into the rear fixing and the shoe tilted downwardly at the front to engage the front fixing.

Description

SET OF TRIGGERABLE MUTUAL FASTENERS
FOR A SNOWBOARD
The invention relates to a set of two triggerable fasteners with mutual triggering, for retaining the two shoes of a user on a gliding board, in particular, but not exclusively, a snowboard.

 Bindings of the non-triggerable type are known which are capable of retaining a shoe on a gliding board, without the possibility of automatic triggering in the event of an overload on the binding. These bindings do not allow the user to practice sliding sports safely because, in the event of a fall, there is no possibility of release of the shoes. However, most of these bindings are of the so-called "step in" type, allowing an automatic engagement of a shoe in a binding, by force engagement of the shoe in the binding and actuation of anchoring and / or locking means d 'a release position to a locking position and retaining the shoe in the binding.

Triggerable type fasteners are also known:
the bindings proposed in FR 2 716 381 allow the shoes to be released only in rotation on the board when the shoes each exert on the corresponding binding a couple along an axis z, substantially perpendicular to the plane of the board, said torsional couple or Mz couple, which exceeds a predetermined threshold. The security of such bindings is only partially ensured because the shoes remain linked to the gliding board in the fall;
the fasteners proposed in WO 96 031 85 and in
EP 0 396 133 are capable of loosening the shoe when the latter exerts on the binding which retains it a stress exceeding a predetermined threshold. However, there is no connection between the two bindings which makes it possible to cause the triggering of a binding by the triggering of the other binding, so that a shoe of the user can be maintained on the gliding board, while the other is released from its fixation following excessive solicitation. This also presents a danger to the user because, in the event of a fall, a shoe may remain linked to the gliding board.

By FR 2 651 142, FR 2 651 143, FR 2 702 388 and
EP 0 350 411, sets of fasteners are also known comprising a connection which, when a shoe is released following excessive stress, causes the release of the other shoe. However, the triggering devices for these fasteners have the disadvantage of being sensitive to the result of the forces:
- according to the z axis, torque (Mz) and vertical breakout force Fz,
-on a longitudinal x axis of the shoe, so-called "lateral" couple or Mx couple, and
-on a y axis transverse to the shoe, couple My.

 However, track force measurements reveal that there is no proportionality relationship between these different efforts, and that the "lateral" torque (Mx) can present significant variations.

Knowing that the release level of a binding must be adjusted to protect the leg in its direction of stress for which the leg is most fragile, that is to say in torsion, the significant variations in torque
Mx are likely to cause nuisance trips.

 To overcome the aforementioned drawbacks of known bindings, the invention provides a set of triggerable mutually triggered bindings for gliding boards, the assembly comprising a connecting means which actuates the release of the two shoes after triggering of a trigger device in torsion of any of the fasteners, following the application of a torque (Mz) greater than a predetermined value.

 The object of the invention is to provide such a set of bindings which makes it possible, on the one hand, to effectively limit the torque transmitted by a binding to the corresponding shoe, and therefore to the user's leg, by means of a device for triggering in torsion independent of the forces Fz, Mx and My, and releasing the rotation of the binding relative to a pivot of the gliding board beyond a predetermined torque Mz, and, on the other hand, actuating the connecting means when a binding released in rotation pivots by a certain angle, following the triggering of its torsional triggering device, which linking means moves locking means of shoe anchoring means to separate the two shoes of their binding.

The set of triggerable mutually triggered bindings for gliding board according to the invention comprises two fixing members, each fixing a boot of a user on the gliding board and connected by a connecting means, and is characterized in that each fastener includes:
a “step in” type retaining device for a shoe on a support plate for the fastening member, and which allows automatic engagement of the shoe, said device comprising, on the one hand, at least one means of anchoring secured to the sole of the shoe, and, on the other hand, means for interlocking and locking at least one anchoring means, said means for interlocking and locking being mounted on the support plate,
the support plate being maintained, on the one hand, pivoting on the gliding board around a first axis, and, on the other hand, in an angular position of locking by a device for triggering in torsion, which releases the rotation of said support plate, when a torque on the shoe exceeds a predetermined value,
a device for triggering at least one locking means of the “step in” type retaining device, actuated by manual means and / or by the connecting means for detaching the boot from the binding; and
means for actuating the connection means actuated after the triggering device has been triggered in torsion and beyond a certain angle of rotation of the support plate with respect to its angular locking position.

 The invention also provides a "step in" type restraint device, as defined above, and which can be used in isolation and independently of the triggerable fixing assembly, and which is characterized in that it comprises, on the one hand, first anchoring means projecting laterally from the sole towards the rear of the shoe and intended to cooperate with fitting means integral with the support plate and each comprising a housing, so that in the engaged position of the shoe the first anchoring means are wedged in the bottom of said housings holding the rear of the shoe vertically, and, on the other hand, a second anchoring means disposed towards the front of the shoe, preferably at the top of a isosceles triangle based on the first anchoring means, and intended to cooperate with a housing of a self-locking lock so that in the engaged position of the shoe said lock maintains the front of the shoe vertically and pushed so that the first anchoring means are wedged in their housing; said self-locking lock being articulated on a pivot and kept self-locking by optionally a non-return lock allowing movement of the self-locking lock only in the direction of closing against the first anchoring means.

Other characteristics and advantages of the invention will emerge from the description which follows, with reference to the appended drawings which illustrate, by way of nonlimiting example, the present invention:
FIG. 1 represents the Oxyz reference system linked to a binding, the orientation of which is given by a shoe in the "engaged" position on said binding, not shown,
FIG. 2 represents a general view of a snowboard equipped with a set of triggerable fasteners with mutual triggering, comprising two fixing members connected by a connecting means,
FIG. 3 is a kinematic diagram of a first embodiment of the actuation means of the connecting means of two fixing members, the connecting means cooperating with cam release devices making it possible to release the shoes from the fixation,
FIG. 4 is a diagram similar to FIG. 3 for a second embodiment of the actuation means of the connecting means of two fastening members, the connecting means cooperating with cam release devices making it possible to release the shoes ,
FIG. 5 is a diagram similar to FIG. 3, for a variant of the first exemplary embodiment of the actuation means of the connecting means of two fixing members, the linking means cooperating with slide release devices making it possible to release the shoes,
FIG. 6 is a diagram similar to FIG. 4, for a variant of the second embodiment of the actuation means of the connection means of two fixing members, the connection means cooperating with slide release devices making it possible to release the shoes,
FIG. 7 is a sectional view, along VII-VII of FIG. 8, in the median plane (xz) of a first embodiment of a fastening member and a shoe in the engaged position,
FIG. 8 is a sectional view along VIII-VIII of FIG. 7,
FIG. 9 is a sectional view along IX-IX of FIG. 7,
FIG. 10 is a sectional view along XX of FIG. 7,
FIG. 11 is a sectional view along XI-XI of FIG. 7,
FIG. 12 is a sectional view along XII-XII of FIG. 7,
FIG 13 is a partial sectional view along
XIII-XIII of figure 12,
FIG. 14 is a sectional view along XIV-XIV of FIG. 7,
FIG 15 is a partial sectional view along XV
XV of figure 14,
FIG. 16 is a sectional view along XVI-XVI of FIG. 14, and
FIG 17 is a sectional view in the median plane (yz) of a second embodiment of a fastening member and a shoe in the engaged position.

 In order not to overload the figures, certain identical or analogous elements of the mechanical devices have been numbered only once per figure.

 FIG. 2 represents a gliding board 1 which is a non-limiting snowboard, and the invention also applies to other gliding boards on which the shoes at two feet of the surfer are held in two fasteners 2 and 3. The triggerable fasteners or fasteners 2 and 3 are made integral with the board 1 by any appropriate means, and in particular by screws 59 (see FIGS. 7 and 13), allowing in known manner the adjustment in particular of the spacing of the fasteners, and therefore of the feet. The fasteners 2 and 3 are connected to each other by a connecting means 4, which controls the triggering of the two fasteners after triggering of a device for triggering in torsion of one or the other fastener 2 or 3.

 The fasteners 2, 3 each comprise a support plate 5 kept pivoting about an axis 01 of the gliding board 1, the axis O1 preferably being perpendicular to the plane of the board 1.

 An exemplary embodiment of a fixing member 2,3 of a set of triggerable fasteners with mutual triggering is described below with reference to FIGS. 7 to 16.

Before describing exemplary embodiments of actuation means of the connecting means 4 of two fixing members 2, 3, in particular with reference to FIGS. 3 to 6, the following is described successively:
-a "step in" type retainer of a shoe on a binding 2 or 3, with reference to FIGS. 7,8,10 and 14 to 16, that is to say a device allowing the automatic engagement of binding 2 or 3 on the shoe by force fitting the shoe into the binding, this "step in" type device, which is integrated into each triggerable binding 2 or 3 of the invention, being particular to the present application and constituting in itself a shoe retaining device usable independently of other characteristics making the binding automatically triggered.

a pivot link of the support plate 5 of a binding 2 or 3 on the gliding board 1 with reference to FIGS. 7, 12 and 13,
a device for triggering a torsion of a binding 2 or 3, with reference to FIGS. 7,8 and 11,
a device for triggering the “step in” type retention device with reference to FIGS. 7 to 9, and
means for actuating the connecting means 4 with reference to FIGS. 8 and 9.

The "step in" type restraint includes:
-three anchoring means 43, 53a, integral with the sole of the shoe for its retention in the binding 2 or 3, two of which 53a towards the rear of the shoe, projecting sideways from the sole, and one 43 towards the 'front under the sole; the anchoring means 53a are intended to keep the rear of the shoe secured to a binding 2 or 3 and allow the lateral tilting forces of the shoe (torque Mx) to be taken up at the heel; this "rear" arrangement of the anchoring means 53a has the advantage of minimizing the deformation of the shoe when a pair
Mx is applied.

means 52b for fitting anchoring means 53a, these fitting means 52b being formed in the sides 52a of a plate 52 of the support plate 5; the sides 52a rise substantially vertically on each side of the shoe and allow the side to be wedged; the interlocking means are formed by cavities or housings 52b formed in the sides 52a; the housings 52b have a flared opening in the upper part of the sides 52a to allow and promote the vertical reception and the guiding of the anchoring means 53a in the housings 52b; the housings 52b extend towards the front of the binding 2 or 3 and are arranged so that in the engaged position of the boot, the anchoring means 53a are wedged in the bottom of the housings 52b, maintaining the rear vertically of the shoe, on the one hand upwards, and on the other hand downwards, in a raised position relative to the top of the binding so as to tolerate a possible accumulation of snow under the sole,
a self-locking lock 45 comprising a housing 44 intended to cooperate with the anchoring means 43 of the front of the shoe to maintain said shoe in the engaged position on the support plate 5 of the binding; the self-locking latch 45 is kept movable in rotation by a pivot 46; the pivot 46 and the housing 44 are arranged so that said housing 44 approaches or moves away from said anchoring means 43 according to the angular position of said latch 45; the self-locking lock 45 can be kept "self-locking" by any known means; in this exemplary embodiment the self-locking lock 45 is kept "self-locking" by a non-return lock 41, which authorizes the rotation of said lock 45 only in the closing direction, against the anchoring means 43 in a stable locking position of the anchoring means 43; the anchoring means 43 is, on the one hand, pushed towards the front of the fixing by the self-locking bolt 45, and, on the other hand, held vertically, being wedged in the housing 44; said non-return lock 41 is maintained, on the one hand, articulated on a pivot 40 whose axis is substantially parallel to the axis of pivot 46, and, on the other hand, pressed against the self-locking lock 45 by elastic members 33, which urge the non-return lock 41 by means of stops 37 arranged at a certain distance from the pivot 40; the contact surfaces of the non-return lock 41 and of the self-locking lock 45 preferably have teeth engaged with each other,
-a support from the front of the shoe; in this exemplary embodiment, the support is obtained by substantially horizontal wings 66 and extending the sides 5a and 5b of the support plate 5.

 Manual release of the "step in" type restraint device can be carried out in a known manner by means of a lever or a cable (not shown) accessible manually, the actuation of which makes it possible to pivot the anti-lock return 41 against the elastic members 33, so that said non-return lock 41 no longer interferes with the self-locking lock 45. When the non-return lock 41 no longer interferes with said lock 45, the latter is rotated by elastic members 38 in a release position, against a stop 35 on the support plate 5 to limit the rotation of the self-locking latch 45 upon release. In the release position, the anchoring means 43 can escape vertically from the housing 44.

This triggering position also allows the engagement of the shoe, because the support of the anchoring means 43 on the lower flank of the housing 44 allows the self-locking lock 45 to rotate in the closing direction, against said means anchor 43.

 As described below, the manual triggering of the "step in" type restraint device can also be achieved by manual control of the connecting means 4 of the fixing members 2,3, said connecting means 4 controlling the triggering of the devices release of the retainer of each attachment 2,3 (see Figures 8 and 9).

 The shape of the front support of the shoe can be made differently and include a shape that matches the sole of the shoe. The front support may also include details of shape or auxiliary means cooperating with the sole to hold it laterally in order to take up the lateral forces from the front of the shoe, for example when applying a torque Mz .

 The fact that the self-locking bolt 45 pushes the anchoring means 43 and therefore the shoe towards the front of the binding 2 or 3 has the effect of keeping the anchoring means 53a wedged in their housing 52b with a certain prestressing force. . The anchoring means 43 is preferably placed at the top of an isosceles triangle having the anchoring means 53a as a base, so that the thrust of the self-locking bolt 45 is distributed in equal prestressing forces on each means d anchor 53a.

 In the engaged position of the boot, the prestressing force of the anchoring means 53a in their housing 52b, under the thrust of the self-locking bolt 45, allows the boot to transmit to the fastening torques (Mz).

 In this exemplary embodiment, the anchoring means 43 is a sheet held in the sole by screws 42. This sheet has a shape detail 43b (FIG. 15) making it possible to reinforce and stiffen the area in this sheet. overhang intended to cooperate with the self-locking lock 45. The sheet 43 also has a recess 43a (FIG. 14) intended to position the front of the shoe laterally with respect to the self-blocking lock 45 during engagement of the shoe. The anchoring means 53a are produced by the ends of a rod 53 projecting laterally from the shoe, and the rod 53 is welded to a sheet 54 which is fixed in the sole by screws 55 (FIG. 14). The anchoring means 43 and 53a can of course be made in another way and have different shapes, they can for example be made up of elements inserted into the sole and which comprise protruding parts of the sole having the same function as the anchoring means 53a and 43.

 In another configuration of the binding, the self-locking bolt 45 can push the boot by its anchoring means 43 towards the rear of the binding; in this case, the housings 52b extend towards the rear of the binding to serve as a vertical and horizontal stop for the anchoring means 53a.

 To engage the shoe on the binding 2 or 3, the user proceeds, in a first phase, to the fitting of the rear of the shoe on the binding so as to vertically introduce the anchoring means 53a in the housings 52b . In this first phase, the user keeps the front of the shoe slightly raised (position illustrated by the broken line representation of the shoe, FIG. 7) so that the anchoring means 43 does not interfere with the self-locking lock 45. In a second phase, the user rocks the front of the shoe by pressing it against the supports 66. During the tilting of the shoe, the anchoring means 43 presses on the self-locking lock 45 and the rotates in a stable locking position, maintaining the anchoring means 53a prestressed in their housings 52b and the front of the shoe held vertically.

 The plate 52 serves as a support and means for fitting the rear of the shoe, and the plate 52 is kept pivotable by a pivot 56 on the support plate 5 so as to allow lateral tilting of the shoe. The lateral tilting in the direction of bringing the knees closer allows the user to bend further and better absorb irregularities in the terrain. However, the foot must be held laterally with a certain rigidity so that the user is naturally positioned in a reference position relative to the gliding board 1 which does not require any effort on the part of the latter. Lateral tilting is limited in one direction by a rigid stop 85 (Figure 10) disposed on the support plate 5 at a certain distance from the pivot 56 on the outside of the foot.

This stop 85 is adjustable in height in order to be able to modify the reference angle of the lateral inclination of the shoe. According to the example shown, the stop 85 is composed of a screw 88 integral with the support plate 5 and a nut 86 on which the plate 52 rests. The nut 86 is tightened on washers forming shims thickness 87, maintained in abutment on the plate 5 and whose thickness and juxtaposition allow the adjustment of the angular position of lateral reference. The washers 87 have a lateral opening which allows them to be introduced under the nut 86 without having to completely unscrew the latter, as well as a plate shape allowing them to fit together. The shoe is held with a certain rigidity in its lateral reference position by an elastically deformable shoe 90 disposed at a certain distance from the pivot 56 on the inside of the foot. The shoe 90, for example made of elastomer, allows by its deformation the lateral inclination of the shoe. The prestressing force exerted by the shoe 90 and which ensures the return of the plate 52 against the stop 85, can be modified by shims 89 of thickness arranged between the shoe and the support plate 5.

 There are naturally other ways of making the stop 85 or the elastic return of the plate 52 against the stop 85. It is also possible, to reduce the number of parts of the binding, to eliminate the possibility of tilting the shoe laterally towards inside the knees. One can for example, fix the plate 52 on the support plate 5 with the interposition of beveled shims making it possible to adjust the angular position of lateral reference, or, by removing the plate 52, make the housings 52b in substantially vertical wings of the support plate 5.

 The reference angle of the lateral inclination of the shoe can also be adjusted and modified at the level of the shoe, by interposing, for example, a bevelled wedge between the sheet metal 54 and the sole.

 When the shoe is engaged, as described above, the self-locking bolt 45 pushes the shoe forward so as to keep the anchoring means 53a prestressed in their housing 52b. The prestressing force depends on the elasticity of the shoe. Insofar as the shoe is too rigid or its elastic deformation insufficient, provision is made to keep the plate 52 axially movable on its pivot 56 so that the plate 52 is pushed towards the rear of the binding by elastic washers 57 against a stop of the support plate 5. Thus, the thrust of the self-locking bolt 45 (which pushes the shoe forward by its anchoring means 43) is exerted against the elastic members 57.

 The shoe retention device described above is particular to the present application and constitutes in itself a shoe retention device which can be used independently of other characteristics making the binding triggerable automatically, and can in particular be fitted with non-triggerable bindings of the "step" type. in ".

 The pivot connection of a binding 2,3 is now described with reference to FIGS. 7 and 13: the support plate 5 is centered and retained vertically on the board 1 by a shoulder formed in the underside of a cam 67, which is fixed on a base plate 64 fixed by screws 59 to the gliding board 1. In order to favor the rotation of the support plate 5 relative to the gliding board 1 and to the cam 67, a sheet 58 and a anti-friction ring 63 are interposed between said support plate 5 and the gliding board 1, and respectively between said support plate 5 and the cam 67.

 According to the exemplary embodiment, the cam 67 comprises two stages, including an upper stage for performing the function of a control cam 6, for actuating the connecting means 4 during the rotation of the support plate 5, and a lower stage for performing the function of a "torsion" cam of the torsion triggering device of the corresponding fixing 2 or 3 (the functions of control cam and "torsion" cam are presented below respectively in the paragraphs "actuating means of the connecting means 4" and "torsional triggering device"). The angular position of this cam 67 on the base plate 64 determines, by its "torsion" cam function, the orientation of the binding along the z axis, in the engaged position of the binding. The fixing of the cam 67 therefore allows the angular adjustment of said cam so that the user can orient his feet in a comfort position which is personal to him. The cam 67 is positioned by a conical fitting on the base plate 64 and tightened vertically by a screw 62 which ensures a rigid fitting and a rotation lock by friction in the angular position desired by the user. The cam 67 transmits the force Mz to the base plate 64 and therefore to the gliding board 1, and in order to prevent any sliding of said cam 67 on the cone of the base plate 64, striations or toothing may be made on the surfaces in contact with the conical parts.

 A protective cover 51, covering the mechanical devices of the fixing and integral with the support plate 5, is kept pivoting about the axis O1 by a washer 50 interposed between the head of the screw 62 and the cam 67. A seal d tightness 49 guarantees the tightness of the cowling 51 with the washer 50 and the cam 67.

 According to the representation of FIG. 7, the screw 62 is screwed into a conical nut 61 which rests on the inner cone of the base plate 64. The nut 61 is kept pressed against the base plate 64 by elastic washers 60 so that by friction, the nut 61 cannot rotate with the screw 62, when the latter is unscrewed. Other tightening means can replace the bolt 61, 62, for example a screw whose conical head is welded into the inner cone of the plate 64 and whose tightening nut is supported on the cam 67.

 The rotation of the support plates 5 of the bindings 2, 3 must be limited to avoid pulling and damaging the connecting means 4, during excessive rotation of the support plates 5 after release of the shoes. To this end, each support plate 5 comprises lugs 92 moving, during the rotation of said support plate 5, in circular grooves 91 formed in the underside of the cam 67 (FIG. 12). The rotation of the support plate 5 is blocked when a lug 92 abuts against one end 91a of its groove 91 (Figures 12 and 13).

 The torsion release device comprises two arms 70 of "torsion" (Figures 7,8,11) arranged on either side of the cam 67, and pivotally mounted at one of their ends on the support plate 5 by pivot axes 69, preferably parallel to the axis O1. The arms 70 each comprise, at a certain distance from their pivot axis 69, a pivot 72, support for a roller 71. The rollers 71 are intended to cooperate with cavities or main notches 6d formed in the side of the floor lower of the cam 67, so as to block the rotation of the support plate 5 relative to the base plate 64 in the engagement position of the attachment 2 or 3. The arms 70 are biased

 The prestressing of the energy generation means 75 can be indicated by a graduated plug 74, arranged between a spring 75 and the head of the screw 73, or by graduations of the nut 78. The driving-in position of the plug 74 or of the nut 78 relative to the cowling 51 indicates the value of the prestress.

 The torsion release device can operate with a single spring 75. In this case, either the head of the screw 73 or the nut 78 is supported on one of the arms 70.

 In another embodiment, the energy generation means can consist of at least one tension spring, one of the ends of each spring being fixed on a first arm 70. The other ends of the springs are fixed on a second arm 70 by optionally interposing an adjustment element consisting of a screw and a nut.

 This device can operate with a single arm 70.

In this case, the spring or springs of the energy generation means which hold the arm 70 elastically in the engaged position are fixed, with the interposition of a possible adjustment means, at one of their ends to the arm. 70 and from the other end to the support plate 5.

 The side of the cam 67 may comprise, on each side of the cavities 6d, at least one auxiliary cavity or notch 6c intended to cooperate with a roller 71 so that each roller 71 engages successively from one cavity 6c to the other , when the torsional triggering device is triggered. The torque Mz necessary to cause the triggering of said device depends on the shapes of the surfaces in contact with the cavities 6d, 6c and the rollers 71, and naturally on the force exerted by the energy generation means 75.

 The succession of cavities 6c allows a significant rotation of the support plate 5 before triggering, which makes the device less sensitive to untimely triggers. In addition, the surfer feels tremors when passing the rollers 71 from one cavity 6d, 6c to the other, he is therefore warned of an imminent triggering and can, in certain cases, transfer the force to the other leg to avoid triggering. The cavities 6c are preferably asymmetrical in that each has a smaller slope in the direction of the closest cavity 6d than in the opposite direction, so that the torque Mz, which makes it possible to return the binding to the "engaged" position "(rollers 71 positioned in the cavities 6d) is significantly lower than the torque Mz which causes tripping.

 We now describe the triggering of the torsional triggering device when a torque Mz is transmitted between the shoe and the support plate 5. The triggering of said device occurs when the torque Mz is no longer balanced by the torque resulting from the forces of contact of the rollers 71 in the cavities 6d of the cam 67. The radial components of the contact forces on said rollers separate the arms 70 against the force of the springs 75. The rollers 71 escape from the cavities 6d and from the cavities 6c. There is triggering of the torsional triggering device when the rollers 71 come to bear on ramps 6e of the cam 67, the slopes of the ramps 6e favoring the rotation of the support plate 5 in the direction of the torque which causes the triggering. The arms 70, supporting the rollers 71, approach each other being recalled by the energy generation means 75, by exerting on the support plate 5 a torque in the direction of tripping, which promotes the rise of 'a roller 7 on a ramp 6a, as described more precisely below.

 The support plate 5 is maintained in a stable triggering position when the roller 7 of an actuating means of the connecting means 4 is positioned, after being mounted on one of the ramps 6a, in one of the notches 6b formed in the substantially circular 6h zone of the upper stage of the cam 67.

 The ramps 6e preferably correspond to the ramps 6a so that when the rollers 71 begin to roll on the ramps 6e, the roller 7 begins to climb on one of the ramps 6a.

 The release device for the "step in" type restraint device comprises (FIGS. 7 to 9).

the self-locking lock 45 of the “step in” type retaining device, comprising the pivot 46 kept guided in translation by elongated cavities 48 formed in the sides 5a and 5b of the support plate 5; the arrangement of said cavities 48 allows the self-locking bolt 45 to move away from the anchoring means 43, against the springs 38, when the fastening is released; in the engaged position of the attachment, the pivot 46 is retained towards the ends of the cavities 48 closest to the anchoring means 43 by a removable stop member 17,
the removable stop member 17 kept mobile in rotation on the plate 5 around a pivot axis 32, preferably parallel to the axis of the pivot 46; said abutment member 17 is recalled, on the one hand, elastically by the elastic members 33 so that its upper part abuts against at least one roller 47 pivoting on the pivot 46 of the self-locking bolt 45 to limit friction during tilting of the stop member 17 when triggered; during the release of the fixing, the removable stop member 17 is pushed by a slide 26 in a position which leaves free the translation of said self-locking lock 45 in the cavities 48;
the springs 38 intended to reset the self-blocking lock 45 after release of the binding, by recalling it in a position which allows the engagement of the shoe; the ends of said springs 38 are held by hooking means 39 and 36 respectively of the support plate 5 and of the self-locking latch 45, arranged so that said latch 45 is resiliently biased, on the one hand, in abutment against the end cavities 48, towards the front of the binding, and on the other hand, in an angular position limited by the stop 35 of the support plate 5 (this angular position allows the introduction of the anchoring means 43 in the housing 44 , when the shoe is switched on),
the slide 26 intended to cooperate with the stop member 17; said slide 26 is held elastically by energy generating means 27 in an engagement position against the side 5a of the support plate 5, so that it does not interfere with the removable stop member 17 (the flank 5a is represented in the kinematic diagram of FIG. 6 by a stop 30). The slide 26 is pivotally mounted on a tube 65; this mounting guarantees a contact surface of the slide 26 on the removable stop member 17 substantially constant during the rotation of the removable stop member 17; the tube 65 is guided in translation by cavities formed in the sides 5a, 5b of the support plate 5, and it has a shoulder 65a intended to push the slide 26 against the removable stop member 17, against the means of energy generation 27.

A piece 84, intended to serve as a stop at one end of the cable 11, is fixed by interlocking in one end of the tube 65; in the exemplary embodiment presently described, the part 84 also has a cam function, and cooperates with a manual trigger handle 31 to allow manual triggering of the "step in" type restraint by actuating the connecting means 4. Exhibit 84 contains:
a stop 84c intended to limit the translation of a cable 11 of the connection hub 4 by coming to bear on the side 5a (stop 29 in FIG. 6),
-a bearing surface 84d of a part 83 of a manual release handle 31 of the attachment 2 or 3 (the part 83 is pivotally mounted in the sides of the handle 31 and serves as a nut for an adjustment screw 68, said screw 68 serving as a stop for the retaining stop 28 of one end of the cable 11 on the slide 26), so that the handle 31 is movable with the slide 26 and makes it possible to pull the end of the cable relative to to this slide 26;
-a ramp 84a intended to cooperate with a roller 82, said roller 82 being held between the sides of the handle 31 and pivotally mounted on a pivot 81 of the manual release handle 31, the roller 82 being held by the pivot 81 in support on the part 84 and intended to roll on the ramp 84a and in a cavity 84b during the tilting of the handle, and
-the cavity 84b, which extends the ramp 84a, and intended to accommodate the roller 82 of the handle 31 to maintain this handle in the release position;
-the manual release handle 31 has a circular surface 31a, the center of which is preferably located on the axis of the part 83, and intended to roll and slide on the anti-friction sheet 58, during the pivoting of the handle 31 ; this geometry of the handle 31 enables the cable 11 to be drawn horizontally when the said handle is actuated, as described below with reference to FIGS. 8 and 9.

 Manual triggering can be achieved by means of a single handle 31 mounted on one or the other attachment 2,3.

If one of the fasteners does not have a manual release handle, the part 84 of this fastener does not need to have a ramp 84a and a cavity 84b, but must on the other hand include a means for retaining the end of the cable 11, by example a threaded bore allowing the adjustment screw 68 to be held in place or a shoulder serving as a stop for the retaining stop 28. Since only one adjustment screw 68 is necessary to adjust the clearances of the means of actuation of the means of link 4, a handle 31 can be provided without an adjusting screw 68. In this case, the part 83 can have a shoulder serving as a stop for the retaining stop 28. The part 83 can also be replaced by a stop for the end of the cable 11 or of the screw 68, formed directly in the handle 31.

 The non-return lock 41 of the “step in” type retention device is brought back against the self-locking lock 45 by the same elastic members 33 which recall the removable stop member 17 against at least one roller 47, in the engaged position. fixing. An advantage of this arrangement of the elastic members 33 is that, upon triggering, the abutment member 17 pivots by deforming said elastic members, which then have a contrary action on the non-return lock 41: they push the latter back from so that it no longer interferes with the self-blocking lock 45. If the action of the elastic members 33 on the non-return lock 41 is not sufficient during the triggering, and to prevent the non-return lock 41 is not driven by the self-locking bolt 45 when the latter moves back, one can provide a stop for the support plate 5, which limits the rotation of the non-return lock 41 towards the self-locking lock 45. In another embodiment, it is possible to provide specific elastic members for the non-return lock 41 and the removable stop member 17.

 The manual triggering action is now briefly described when the user presses the handle 31 of a first binding 2 or 3 towards the gliding board 1, the surface 31a of this handle 31 rolls on the friction plate 58, so that said handle 31 moves away from the attachment 2 or 3 by driving the cable 11, and simultaneously pushes, by pressing the roller 82 on the ramp 84a, the part 84, the tube 65 and the slide 26 against the means of energy generation 27. The movement of the cable 11 drives the tube 65 and the slide 26 against the energy generation means 27 of the second fastener 3 or 2. The two fasteners 2 and 3 are triggered when the roller 82 is wedged in the cavity 84b. The cavity 84b is intended to hold the handle 31 in a stable position for triggering the fasteners. To bring the triggering device of the "step in" type retaining device into a position which allows the boot to be engaged, it suffices to pull the handle 31 upwards so as to disengage the roller 82 from the cavity 84b. The devices for triggering the step-in type retainers of the fasteners 2,3 automatically reset, the following operations take place in each fastener: the energy generation means 27 push the slide 26 against the flank 5a, the elastic members 38 recall the self-locking bolt 45 in the receiving position of the anchoring means 43 and the elastic members 33 push, on the one hand, the removable abutment member 17 into abutment against the roller 47, and, on the other hand , the non-return lock 41 against the self-locking lock 45.

 In another embodiment of manual triggering, each attachment 2 or 3 can be triggered separately by a lever or cable accessible manually, and which allows the removable stop member 17 or the non-return lock 41 to 1 to be pivoted. against elastic members 33.

The connecting means 4 is, for example, a cable
Bowden, which comprises, on the one hand, the cable 11 cooperating with the slides 26 to move, in each attachment 2,3, the removable stop member 17 of the release device of the "step in" type retention device, and allow the displacement of the self-locking bolt 45 of the retaining device, and, on the other hand, a sheath 10 of the cable 11 between the fasteners 2 and 3.

 The actuation means of the connecting means 4, comprise, in each attachment 2,3, an arm 8 kept pivoting about an axis 03 of a support plate 5, the axis 03 being substantially parallel to the axis 01 and, in this example, coaxial with the pivot axis 69 of one of the "torsion" arms 70 by simplification of construction; each arm 8 comprises, on either side of the axis 03, on the one hand, a stop 9 of the sheath 11 and a cavity passing through said stop 9 to allow the passage of the cable 11, and, on the other hand , a pivot 79 of a roller 7 intended to cooperate with the side of the upper stage of the cam 67; the side of the upper stage of the cam 67 is intended to cooperate with the roller 7 in the engaged position of the release device, and comprises a circular zone 6f whose center is disposed on the axis 01 of rotation of the support plate 5 ; the area 6f is bordered by ramps 6a intended to push the roller 7 so that it moves away from the axis 01, pivoting the arm 8 for the release of the fasteners 2 and 3.

The actuation of the connecting means 4 is caused by the rotation of a fixing 2 or 3, that is to say the rotation of a support plate 5 around a cam 67, following the triggering of the triggering device in torsion of said attachment. Beyond a certain angle of rotation, in one direction or the other, the arm 8 is pushed by the ramps 6a, displacing one end of the sheath 10 of the cable
Bowden, thus exerting a pull of the cable 11 between the fasteners 2 and 3. This pulling of the cable 11 has the effect of bringing its ends closer by driving, in each fastener, the part 84, the tube 65 and the slide 26 against energy generating means 27 in a trigger position; the triggering position is such that each slide 26 pushes a stop member 17 of the triggering device of the retaining device of the "step in" type so as to allow the displacement of the corresponding self-locking bolt 45.

 The ramps 6a of the cam 67 each terminate in a cavity 6b intended to wedge the roller 7 so as to maintain the arm 8 in a stable position, which keeps the release device of the "step in" type retainer in position trigger; so that said device can be reset, it is necessary to rotate by hand the binding which has started in "twist", to put it back in the "engaged" position (rollers 71 wedged in the cavities 6d).

 In the previous exemplary embodiment of a fastening member 2,3, a particular device for retaining a shoe has been described. It is of course possible to produce different retaining devices.

The shoe can include, for example:
a means of anchoring the front of the shoe intended to cooperate with a means of fitting the binding to hold the front of the shoe vertically (z axis) and transversely (y axis),
-two lateral projecting anchoring means on each side of the sole, and preferably arranged towards the heel of the shoe, these lateral anchoring means being held longitudinally (x-axis) and transversely (y-axis) by means of 'fitting of the attachment, and each retained vertically by a lock, the locks being controlled by a triggering device.

 According to another example, the shoe can comprise a single anchoring means, preferably centered under the sole.

The anchoring means is positioned in the binding by means of interlocking, and held vertically by at least one latch controlled by a release device.

 FIG. 3 makes it possible to explain the mutual triggering of the fastening members 2,3 after triggering of the device for triggering in torsion of a fastener 2 or 3, using the first embodiment of the means for actuating the means of link 4, which is the cable 11 with sheath 10 of the type known as the Bowden cable, previously described.

Each support plate 5 includes:
a shoe retaining device comprising means for fitting means for anchoring a shoe and at least one locking means 45, 17 of at least one anchoring means 43 referenced as examples in no way limiting (figure 7),
-a pivot of axis O1,
a device for triggering in torsion, not shown, for resiliently maintaining the support plate 5 in a stable angular position ("engaged" position of said device) and releasing the rotation of said plate 5 around the axis O1 when a pair of torsion Mz on the shoe exceeds a predetermined value; the torsion release device can naturally be produced differently from the torsion release device described above by way of example, with reference to FIGS. 8 and 11;
a device for triggering the locking means 45, 17 of the retaining device; said locking means are referenced with reference to the exemplary embodiment of FIG. 7, they are represented diagrammatically in FIGS. 3 to 6 and can therefore be produced differently, depending on the configuration of the shoe retaining device. The triggering device comprises an unlocking cam 12a or 12b (of the attachment 2 or 3) kept pivoting on an axis 02 preferably parallel to the axis 01; on the sides of the unlocking cams 12a, 12b are maintained supported removable stop members 17, with possible interposition of connecting members 16 (slide, lever, or roller 160 of Figure 17, described below), by au less an elastic member 33; the removable stop members 17 are shown in a position which keeps the self-locking latches 45 in the engaged position; said abutment members 17 allow, when they are pushed back by the unlocking cam 12a, 12b against the elastic members 33, the displacement of the self-locking latches 45 releasing the shoe; the side of the unlocking cam 12a, 12b therefore comprises, to control the position of the removable stop members 17, on the one hand, substantially circular zones 12c intended to hold said members 17 and the self-locking latches 45 in the engaged position , and on the other hand, ramps 12e intended to push said stops 17 when the unlocking cam 12a, 12b pivots in a triggering position; according to two different configurations of the triggering device, the unlocking cam 12a, 12b is:
is recalled elastically, by energy generation means 18a, 18b, in a triggered position by pushing the stop members 17,
. either maintained by pulling the cable 11, in the latching position against the energy generation means 18a, 18b,
means for actuating the connecting means 4 comprising:
. the cable 11, which connects the release cams 12a and 12b of the respective fasteners 2 and 3, being fixed at its ends to said cams by stops 13 so that a pull of said cable 11 exerts moments on said cams 12a and 12b which are opposite to the moments exerted by the energy generating means 18a and 18b;
. the sheath 10 of the cable 11 between the fasteners 2 and 3, held between the stops 9 of the arms 8 of the respective fasteners 2 and 3; each arm 8 is kept pivoting about an axis 03 of the corresponding support plate 5; the rotation of the arms 8 is controlled by a control cam 6 secured to the gliding board 1, and on which said arm 8 is supported by means of a possible roller 7, so as to move the end of the sheath 10.

 The displacement of the sheath 10 causes, by means of the cable 11, a modification of the rectilinear distance which separates the stops 13, allowing the rotation of the unlocking cams 12a and 12b.

 The sides of the control cam 6 intended to be in contact with the arm 8 or the roller 7 comprise, on the one hand, a substantially circular zone 6f which maintains the arm 8 in a "latching" position as shown in the Figure 3, and, on the other hand, on each side of the area 6f, ramps 6g allowing the arm 8 to pivot inwardly of the control cam 6 during rotation, in one direction or the other , of the support plate 5, after triggering of the torsion trigger device. The pivoting of the arm 8 causes the sheath 10 and the cable 11 to relax, allowing the unlocking cams 12a and 12b to rotate in the release position, these being driven by the energy generation means 18a, 18b.

 After describing the operation of mutual triggering which frees the user's two shoes when one of the bindings 2 and 3 turns around its pivot axis 01, following an excessive Mz torque, we will now describe how the user can release, by manual action, a single shoe or both. Indeed, when the slope is not sufficient, the user must be able to use his board like a scooter and propel himself with one leg, or put feet on the ground to be able to walk.

 A manual triggering member, such as a cable 15 which can be actuated manually, is linked to the unlocking cam 12a by a stop 14 to allow the pivoting of the unlocking cam 12a against its energy generation means 18a . Other organs than the cable 15 can naturally be very used (lever, push-button, ...).

The unlocking cam 12a further comprises ramps 12d, spaced a certain distance from the ramps 12e by a zone 12c, and intended to push the removable abutment members 17 against the elastic members 33 when the cam unlocking 12a is pivoted manually. The length of the zone 12c which separates the ramps 12d and 12e must be sufficient so that the unlocking cam 12a can pivot without stressing the removable abutment members 17, by an angle which allows the movement of the cable 11 and the rotation of the unlocking cam 12b in the release position.

Manual triggering therefore takes place sequentially:
a first movement of the manual triggering member 15 pivots the unlocking cam 12a so as to trigger the binding 3, the binding 2 remaining engaged,
a second movement of the manual triggering member 15, greater than the first movement, pivots the unlocking cam 12a so that the removable stops 17 are pushed by the ramps 12d, this causing the binding 2 to be triggered.

Stops limit the rotation of the unlocking cams 12a, 12b such as:
the stops 19 limit the rotation of said cams 12a and 12b in the release position,
the stop 20b limits the rotation of the unlocking cam 12b in the engaged position,
the stop 20a limits the rotation of the unlocking cam 12a when it is driven by the manual triggering member 15.

 When the fasteners 2,3 are engaged, the unlocking cams 12a and 12b must always be in the same engagement position so as not to stress the abutment members 17 of one or the other attachment. To this end, the energy generation means 18a exert a return moment on the unlocking cam 12a which is greater than the return moment exerted by the energy generating means means 18b of the unlocking cam 12b.

The engagement position of the unlocking cams 12a, 12b is then guaranteed elastically as well as by the inexhaustibility of the cable 11, by the energy generation means 18a, which hold the unlocking cam 12b against the stop 20b at Meet the means of energy generation 18b.

 Note that the asymmetry of the unlocking cams 12a, 12b is imposed by the way in which the manual triggering which has just been described is carried out. If the manual release is carried out differently, for example by acting separately on the removable stop members 17 of the fasteners 2, 3, it is then possible to produce a symmetrical release device and replace the pieces 12a, 20a, and 18a by the respective pieces 12b , 20b and 18b.

 It is further noted that, when the unlocking cams 12a, 12b are in the engaged position, the stop members 17 can be pushed by the elastic members 33 against the stops of the support plate 5, and not necessarily against the zones 12c of said cams.

 FIG. 4 shows a second embodiment of the actuation means of the connecting means 4.

 Recall that, in the embodiment of Figure 3, the relaxation of the cable 11 allows the rotation of the unlocking cams 12a, 12b, which are driven by their respective energy generation means 18a, 18b in the release position.

 The purpose of this second example is that the mutual triggering of the fastening members 2,3 is controlled by pulling the cable 11, which drives the release cams 12 in the triggered position.

 The connecting means 4 comprises, on the one hand, a cable 11 which cooperates with unlocking cams 12 to move the removable stop members 17 of the fasteners 2,3, and allow the displacement of the self-locking latches 45. It comprises, d on the other hand, a sheath 10 which cooperates with arms 8, in the same manner as in the example in FIG. 3.

The arms 8, on the other hand, cooperate with control cams 6, which differ from the control cams in FIG. 3 by the fact that they now push the arms 8 towards the outside of said cams, when the fastening is released.

 The connecting means 4 is actuated by the rotation of the support plate 5 around the control cam 6, according to the same operating principle as that described above, in the exemplary embodiment of FIGS. 7 to 16.

 The length of the cable 11 is chosen so that the said cable is slightly relaxed, allowing the unlocking cams 12 to be each held in abutment by its energy generation means 18 against a stop 20 (the stops 20 define a position for the reference position of the release cams 12).

 The friction of the cable 11 in said sheath 10 and / or the fact that the energy generation means 18 of the fasteners 2 and 3 are not perfectly symmetrical have the consequence, during the pulling of the cable 11 caused by the sheath 10, that only one of the unlocking cams 12 is driven by the cable 11. To ensure that the movement of the cable 11 makes the two unlocking cams pivot, stops 19 have been arranged in the release position while allowing the support plate 5 to continue turning on its axis O1.

 Manual release of the fasteners 2 and 3 can be obtained by acting on the cable 11 so as to increase its traction, the traction of the cable 11 pivoting the release cams 12 in the release position against their generation means. energy 18.

 According to a first example, the pulling of the cable 11 can be carried out as shown for the fixing 3, by a manual triggering member such as a cable 15a which can be actuated manually and linked to the cable 11, between the stops 9 and 13, by a stop or a roller 15b, so as to exert, when it is stressed, a force substantially normal to the cable 11.

 According to a second example, the pulling of the cable 11 can be carried out as shown for the fixing 2, by means of a spreader 21 pivotally mounted on a pivot 23 of the unlocking cam 12, and comprising, on either side of the pivot 23, a stop 22 for fixing the cable 11 and a stop 24 for fixing a cable 15 which can be actuated manually.

 The cable 15 is disposed in the binding 2 so as to pivot, when it is stressed, the lifter 21 in a position of equilibrium, urging on the one hand the unlocking cam 12 on which the lifter 21 pivots, at 1 against its energy generation means 18, and on the other hand the cable 11 against the energy generation means 18 of the binding 3.

The rotation of the lifting beam 21 is limited in one direction by a stop 25 of the unlocking cam 12 which allows, when one of the fasteners 2 and 3 triggers following a torque
Mz excessive, to transmit the tensile force of the cable 11 to the unlocking cam 12 via the spreader 21, the pivot 23 and the stop 25.

 The cables 15, 15a can very be replaced by a lever or a push-button having the same function.

 Manual releases of fasteners 2 and 3 should preferably take place successively to allow the release of a single shoe or both shoes as desired by the user. It suffices for this that an unlocking cam 12 is driven before the other in the release position, when the manual release member 15, 15a is stressed.

This offset of the pivoting of the cams 12 can be achieved for example:
by first energy generation means 18 exerting a moment on an unlocking cam 12 of a binding 2,3 which is greater than the moment exerted by second energy generating means of the unlocking cam 12 of l other fixing 3,2,
by the friction of the cable 11 in the sheath 10 or by another means making it possible to harden the movement of said cable 11 or of an unlocking cam 12,
by the position of the stops 22 and 24 of the lifter 21 relative to the pivot 23 and by the position of said pivot 23 on the unlocking cam 12,
by the direction of the force exerted by the manual tripping member 15, 15a on the cam 12 or the cable 11.

 It is noted that it is advantageous, in order to reduce the size of the binding 2,3, to superimpose the control cams 6 and the unlocking cams 12,12a, 12b so that they are held by the same pivot, coinciding with the axes 01 and 02.

 Figure 5 is a diagram similar to Figure 3, for a variant of the first embodiment of the actuating means of the connecting means 4 of two fixing members 2,3, the connecting means 4 cooperating with triggering devices with slides 26a, 26b instead of the release cams 12a respectively 12b.

 Each slide 26a, 26b is held in translation in a support plate 5 of a binding 2,3, along an axis preferably substantially parallel to the axis y of the binding 2,3. Said slides therefore have the same action on the removable abutment members 17 as the unlocking cams 12a, 12b. The actuation means of the connecting means 4 of the two fixing members 2, 3 are produced in the same manner as in the representation of FIG. 3.

Each slide 26a, 26b comprises:
a stop 28 for hanging the cable 11,
energy generation means 27a, 27b which elastically and respectively maintain the slide 26a, 26b in a triggering position,
a ramp 26c intended to push a stop member 17 against the elastic members 33 in a release position which allows the displacement of the self-locking latches 45 releasing the shoe.

 The slides 26a, 26b can be moved into the triggering position by manual action by the user. To this end, a manual triggering member such as a cable 15 which can be actuated manually is linked to the slide 26a by a stop 14 so as to move said slide 26a against its energy generation means 27a. The slide 26a further comprises a ramp 26d, spaced a certain distance from the ramp 26c, and intended to push the removable stop member 17 into the release position when said slide is moved manually. The distance between the ramps 26d and 26c must be sufficient for the slider 26a to be able to move, according to a first sequence, without stressing the removable stop member 17 and by allowing the cable 11 and the slider 26b to move in position trigger, being driven by the energy generation means 27b. This first sequence makes it possible to release the boot from the binding 3, the binding 2 remaining engaged.

According to a second sequence, the manual action further displaces the slide 26a so that the ramp 26d pushes the removable stop member 17 into the release position, releasing the boot from the binding 2.

Stops limit the movement of the slides 26a, 26b such as:
the stops 29 limit the movement of the slides 26a, 26b in the release position,
the stop 30b limits the displacement of the slide 26b in the latching position,
the stop 30a limits the movement of the slide 26a when it is driven by the manual release member 15.

 For the same operating reasons for the unlocking cams 12a and 12b as those explained in relation to FIG. 3, the energy generation means 27a exert a force on the slider 26a which is greater than the force exerted by the generation means d energy 27b on the slide 26b.

 The asymmetry of the slides 26a, 26b is imposed by the way in which the manual triggering which has just been described is carried out. If the manual release is carried out differently, for example by acting separately on the removable stop members 17 of the fasteners 2, 3, it is then possible to produce a symmetrical release device and replace the pieces 26a, 30a, and 27a with the respective pieces 26b. , 30b and 27b.

 Figure 6 is a diagram similar to Figure 4, for a variant of the second embodiment of the actuating means of the connecting means of two fixing members, the connecting means 4 cooperating with slide release devices 26 to location of the unlocking cams 12. The slides 26 therefore have the same action on the removable stop members 17 as the unlocking cams 12. Each slide 26 is disposed in the support plate 5 in the same way as the slides 26a, 26b of Figure 5.

 It is further specified that FIG. 6 is a kinematic diagram of the actuation means of the exemplary embodiment described above with reference to FIGS. 7 to 16; we simply recall briefly the elements allowing the actuation of said connecting means 4.

Each slide 26 comprises:
a stop 28 for hanging the cable 11,
energy generation means 27 which elastically hold said slide 26 in an engagement position against a stop 30,
ramps 26e intended to push the abutment members 17 against their elastic members 33 in a release position which allows the displacement of the self-locking latches 45 releasing the shoe,
a stop 29 which limits the movement of said slide 26 in the release position.

Manual release of the fasteners 2 and 3 can be obtained by acting on the cable 11 so as to increase its traction in the same way as in the example of FIG. 4; FIG. 6 shows an exemplary embodiment of manual triggering similar to the example of FIGS. 7 to 16, and in which:
a lever 31 which can be actuated manually is interposed between a stop 28 of the cable 11 and a first slider 26 so as to pull the cable 11 by pressing on said slider 26 when said lever 31 is stressed. The lever 31 therefore uses the action and reaction principle to move the two slides 26 into the release position, by pushing the first slide 26 and pulling the second slide 26 via the cable 11, against their respective energy generation means 27.

The sequential triggering of a single attachment 2 or 3 or of the two attachments 2 and 3 can be obtained:
by first energy generation means 27 exerting a force on the slider 26 of a binding 2,3 which is greater than the force exerted by second energy generating means of the slider 26 of the other binding 3 , 2,
by the friction of the cable 11 in the sheath 10 or by another means making it possible to harden the movement of said cable or of a slide 26.

 by a cam effect of the lever 31 on the slider 26, so that the force applied to the lever 31 is transmitted on said slider with a value different from the force transmitted on the cable 11.

 In other embodiments, the actuation means of the connecting means 4 may have a different configuration, according to which the ends of the cable 11 are each held by an abutment of an arm 8, and the ends of the sheath 10 are each supported on a stop of a slide 26,26a, 26b or an unlocking cam 12,12a, 12b; the actuating means of the connecting means 4 according to this new configuration can operate according to any of the operating principles presented in relation to FIGS. 3 to 6, that is to say that the locking means 45, 17 are driven in a release position releasing the boot, either by increased compression of the sheath 10 and against energy generation means, or driven by energy generation means following the relaxation of the compression in said sheath.

 According to the exemplary embodiment of FIG. 17, the shoe comprises two anchoring means 530 projecting laterally from each side of the sole, and preferably arranged at equal distance from the front and from the rear of the sole. The anchoring means 530 are each positioned in the fixing by a fitting means 520 of a support plate 5, and held vertically by a self-locking lock 450. Each self-locking lock 450 is controlled by one of the release devices described relative to the Figures 3 and 4.

 In the embodiment of FIG. 17, each self-locking lock 450 is kept movable in the support plate 5, as well as retained in the latching position by a removable stop member 17, in the same way as the self-locking lock 45. In addition, when the fastening is engaged, the position of the pivot 46 and the slope of the contact surface of the self-locking lock 450 with the anchoring means 530, make the self-locking lock 450 "self-locking", and does not done, that pivot in the closed position, against the anchoring means 530.

Claims (11)

 1. Set of triggerable mutually triggered bindings for gliding board, 1 assembly comprising two fixing members (2,3), each fixing a boot of a user on a gliding board (1) and connected by a connecting means ( 4), characterized in that each fixing member (2,3) comprises:  a “step in” type retaining device for a shoe on a support plate (5) of the fastening member (2,3), and which allows automatic engagement of the shoe, said retaining device comprising, on the one hand, at least one anchoring means (43, 53a, 530) integral with the sole of the shoe, and, on the other hand, interlocking means (52b, 520) and locking means (45, 450, 17) of at least one anchoring means, said interlocking and locking means being mounted on said support plate (5);  -said support plate (5) being kept, on the one hand, pivoting on the gliding board (1) around a first axis (O1), and, on the other hand, in an angular position of locking by a device torsional release, which releases the rotation of said support plate (5) when a torque (Mz) on the shoe exceeds a predetermined value;  a device for triggering at least one locking means (45,450,17) of said "step in" type retaining device, actuated by manual means (31,15,15a) and / or by said connecting means ( 4) to separate the shoe from the fastening member (2,3); and  -activation means of the connecting means (4) actuated after triggering of the torsional triggering device and beyond a certain angle of rotation of the support plate (5) relative to its angular locking position.  2. Assembly according to claim 1, characterized in that the actuation means of the connecting means (4) of each fixing member (2,3) comprise, on the one hand, an arm (8) held articulated by a pivot about a second axis (03) integral with the support plate (5) and comprising a stop (9) retaining one end of a sheath (10) or a cable (11) of the connecting means (4), and, on the other hand, a control cam (6,67) integral with the gliding board (1), centered on the first axis (01), cooperating with a roller (7) kept pivoting on the arm (8) at a certain distance from the second axis (03), and which controls a rotation of said arm (8) and a displacement of the sheath (10) and / or of the cable (11) during the rotation of the support plate (5), after triggering of the torsional triggering device.  3. Assembly according to claim 2, characterized in that the device for triggering at least one locking means (45,450.17) as well as the means for actuating the connecting means (4) comprise:  -a slide (26) or an unlocking cam (12) kept guided sliding by a guide or respectively articulated by a pivot around a third axis (02) of the support plate (5);  -energy generating means (27,18) which resiliently recall the slide (26) respectively the cam (12) for locking towards a stop (30,20) of the support plate (5), in the engaged position of the fixation,  -stops (29,19) linked to the support plate (5) and which limit the movement of the slide (26) respectively of the cam (12) for unlocking in a release position which allows the shoe to be released,  a stop (21,22,23,25,68,83,84) for retaining the end of the cable (11) or of the sheath (10) and arranged so that a traction of said cable (11), respectively compression of said sheath (10), displaces said slide (26) or said unlocking cam (12) against said energy generating means (27,18), said slide (26) or said cam ( 12) for unlocking comprising surfaces (12c, 12e, 26c, 26e) intended to push a removable stop member (17) in order to cause the triggering of the locking means (45,450.17),  the control cam (6,67) comprising projecting ramps (6a) intended to push said arm (8) towards the outside of said control cam (6,67) during the rotation of the support plate (5 ), said arm (8) moving the sheath (10), respectively the cable (11), so as to cause increased traction of the cable (11), respectively increased compression of the sheath (10), respectively pulling pushing the sliders (26) or the cams (12) for unlocking the two fixing members (2,3) against their energy generation means (27,18).  4. An assembly according to claim 2, characterized in that the device for triggering at least one locking means (45,450.17) as well as the means for actuating the connecting means (4) comprise:  -a slide (26a, 26b) or a cam (12a, 12b) for unlocking kept guided sliding by a guide or respectively articulated by a pivot around a third axis (02) of the support plate (5);  means of energy generation (27a, 27b; 18a, 18b) which resemble the slide (26a, 26b) respectively the cam (12a, 12b) for unlocking towards a stop (29,19) of the support plate ( 5) in a release position which allows the shoe to be released,  -stops (30a, 30b; 20a, 20b) linked to the support plate (5) and which limit the movement of the slide (26a, 26b) respectively of the cam (12a, 12b) for unlocking in the direction which goes to 1 '' against energy generation means (27a, 27b; 18a, 18b),  -a stop (28,13) retaining a corresponding end of the cable (11) or the sheath (10) and arranged so that a pull of said cable (11), respectively a compression of said sheath (10) , moves said slide (26a, 26b) or said unlocking cam (12a, 12b) against said power generation means, said slide or said unlocking cam having surfaces (12c, 12d, 12e, 26c, 26d, 26e) intended to push a removable stop member (17) in order to cause the triggering of at least one locking means (45,450,17),  -said control cam (6,67) comprising a bearing surface of the roller (7) of said arm (8), on a first part (6f) substantially circular, so that the cable (11), respectively the sheath ( 10), maintain the energy generation means (27a, 27b; 18a, 18b) in the maximum energy position when the torsion release device is in the engaged position, and which, on either side of the first part (6f) has a slope (6g) such that the arm (8) approaches said control cam (6,67) during the rotation of the support plate (5) after triggering of the torsion trigger device, said arm (8) moving the sheath (10), respectively the cable (11), so as to reduce the tension in the cable (11), respectively the compression of the sheath (10), allowing the translation of the slide (26a, 26b ) or the rotation of the cam (12a, 12b) for unlocking each fixing member (2,3), driven by said means of energy generation (27a, 27b; 18a, 18b).  5. Assembly according to claim 3 or 4, characterized in that a device for triggering in torsion of each attachment (2; 3) comprises, on the one hand, a "torsion" cam (67) centered on the first axis (O1) and integral with the control cam (6), said cams being possibly produced in the same cam (67), and, on the other hand, at least one "torsion" arm (70) kept pivoting on the plate support (5) by a pivot (69) and cor. bearing, at a certain distance from said pivot (69), either a cavity intended to cooperate with at least one roller kept pivoting on said "torsion" cam (67), or a pivot (72) supporting a roller (71) intended to cooperate with at least one cavity (6d, 6c) formed in the side of the "torsion" cam (67) so that the roller (71) is positioned in a cavity (6d) in the engaged position of the triggering device in torsion, and sort of cavities (6d, 6c) when the said device is triggered with a trigger threshold depending on the shapes of the surfaces in contact with the cavities (6d, 6c) and the rollers (71), each "torsion" arm (70 ) being recalled elastically in a position which allows the interaction of the roller (71) and the cavities (6d, 6c) by at least one energy generation means (75).  6. An assembly according to claim 5, characterized in that an energy generation means of a torsion trigger device comprising two "torsion" arms (70) consists of at least one elastic member (75) the preload adjustment of which is carried out by a bolt (73, 78) passing through the "torsion" arms (75) through cavities, at least one of the ends of said bolt (73,78) serving as a stop for said member elastic (75) holding the latter in abutment against a "torsion" arm (70), possibly with the interposition of a slide or a washer (76).  7. Assembly according to one of claims 5 and 6, characterized in that the support plates (5) are each pivotally held against an anti-friction plate (58) of the gliding board (1) by a shoulder of the cam "torsion" (67), said "torsion" cam itself being held integral with a base plate (64) of the gliding board (1) by a conical assembly, and a screw (62) according to the first axis (01) blocking the rotation and allowing the angular position of said "torsion" cam (67) to be adjusted on the gliding board (1).  8. An assembly according to any one of claims 1 to 7, in which the "step in" type retaining device comprises locking means provided with a self-locking lock (45, 450) kept articulated on a pivot (46) disposed so that the housing (44) of said latch (45,450) intended to cooperate with an anchoring means (43,530) approaches or moves away from said anchoring means according to the angular position of said latch, characterized in that said pivot ( 46) is kept guided in translation by elongated cavities (48) of the support plate (5) allowing the self-locking bolt (45,450) to move away from said anchoring means (43,530) against generation means. energy (38) when the fixing member (2,3) is released, said pivot (46) being retained towards the ends of the cavities (48) closest to said anchoring means (45,530) by a stop member removable 17) in the engaged position of the binding.  9. The assembly of claim 8 as attached to one of claims 3 and 4, characterized in that the removable stop member (17) has a pivot axis (32) and is maintained, on the one hand, elastically by at least one elastic member (33) so that its upper part abuts against at least one roller (47) pivoting on the pivot (46) of the self-locking bolt (45,450), and, on the other hand, in a position which leaves free the translation of said self-locking bolt (45, 450) by the action of the slide (26; 26a, 26b) or of the unlocking cam (12; 12a, 12b) against elastic members (33), when triggering of the fixing member (2,3).  10. Assembly according to any one of claims 1 to 9, characterized in that the shoe retaining device comprises, on the one hand, first anchoring means (53a) projecting laterally from the sole towards the rear of the shoe and intended to cooperate with fitting means integral with the support plate (5) and each comprising a housing (52b), so that in the engaged position of the shoe the first anchoring means (53a ) are wedged in the bottom of said housings (52b) holding the rear of the shoe vertically, and, on the other hand, a second anchoring means (43) disposed towards the front of the shoe, preferably at the top of the shoe. '' an isosceles triangle based on the first anchoring means (53a), and intended to cooperate with a housing (44) of a self-locking lock (45) so that in the engaged position of the shoe said lock (45) keep the front of the shoe vertically and pushed so that the first rs anchoring means (53a) are wedged in their housing (52b); said latch (45) being kept "self-locking" by optionally a non-return latch (41) allowing movement of said latch (45) only in the direction of closing against the first anchoring means (43); the non-return lock (41) being preferably articulated on a pivot (40) whose axis is substantially parallel to the axis of the pivot (46) of the self-locking lock (45), and pushed by at least one member elastic (33) against said latch (45) in the engaged position of the fixing member (2,3), the contact surfaces of the non-return latch (41) and of the self-locking latch (45) may include teeth engaged with each other.  11. The assembly of claim 10, characterized in that the housings (52b) are formed in wings (52a, 52b) substantially vertical of a plate (52) held articulated on the support plate (5) by a pivot (56 ) whose axis is preferably parallel to the longitudinal axis of the boot and at equal distances from the wings (52a, 52b), the pivoting of the plate (52) being limited in one direction by a rigid stop (85 ), possibly adjustable in height (86,87,88), and in another direction by an elastically deformable shoe (90) and possibly adjustable prestress (89).