WO2000021620A1

WO2000021620A1 - Device for fixing shoes on a sport accessory

Info

Publication number: WO2000021620A1
Application number: PCT/FR1999/002501
Authority: WO
Inventors: François Daniel Pierre SCHNEEGANS
Original assignee: Schneegans Francois Daniel Pie
Priority date: 1998-10-14
Filing date: 1999-10-14
Publication date: 2000-04-20
Also published as: FR2784594A1; AU6097599A

Abstract

The invention concerns a device for fixing a user's shoe on a sport accessory, such as a snowboard, comprising at least a fixing member including a support plate (6) provided with means to be fixed on the sport accessory, front and rear retaining means, the shoe being provided with front and rear anchoring means, and the fixing resulting from engaging the rear anchoring means into the rear retaining means, then by pressing to interlock the shoe front anchoring means into the front retaining means. The invention is characterised in that the retaining device is a step-in device automatically interlocking the shoe, manual or automatic releasing means being provided to release the shoe from the sport accessory.

Description

The present invention relates to devices for attaching shoes to sports accessories, these bindings being of automatic engagement, of the type called "step-in" in the art. Such fastening devices can be used on gliding boards intended to be used on snow, and commonly called "snowboards ^" . or on skateboards also called "roller-skate" or "skate-board ^'* .

Such devices are actually unsuitable for skateboards because they cannot be triggered. On the other hand, they could be used as a means of fixing a rolling mechanism of the roller skate or inline skate type on a shoe.

Non-triggerable type bindings are known which are capable of retaining a boot 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. from a release position to a position for locking and retaining the boot in the binding.

Document PCT / FR97 / 01 507 discloses a device for fixing the foot to a snowboard-type sports device. Such a device comprises a base, front and rear retaining means having abutment surfaces, front and rear guide means, means for releasing the foot, as well as means for fixing to the machine. The device also comprises a boot whose sole can come to bear on Tembase, the boot having means for fastening front and rear ^*. The means of ^"hanging front and rear are applied respectively on the abutment surfaces avani and rear guide means at the beginning of the boot, the rear hooking means ^* then traversing a path that changes the distance between the hooking means front to apply on the rear stop surfaces at the end of the boot.

Triggerable type bindings 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 torque along an axis z, substantially perpendicular to the plane of the gliding board, said torque or torque M _z , 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 bindings proposed in WO 96 031 85 and in EP 0 396 133 are capable of releasing the shoe when the latter exerts on the binding which retains it a stress exceeding a predetermined threshold. However, there is no link between the two fasteners that allow of causing a fixation by the outbreak of ^the other fixing, so that a user's shoe can be maintained on the sliding board, while the other is released from its attachment to the result ^of excessive stress. This also presents a danger to ^the user since. in case of a fall, it is possible that ^a shoe remains bound to the gliding board.

From FR 2 651 142, FR 2 651 143, FR 2 702 388 and EP 0 350 411, there are also known sets of bindings 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

- along the z axis, torsional torque M _z and vertical breakout force F _z ,

- along a longitudinal x axis of the shoe, so-called "lateral" couple or M _x couple, and

- along an axis y transverse to the shoe, torque M _y .

Measurements of runway forces reveal that there is no proportionality relationship between these different forces, and that the "lateral" torque M _x can present significant variations.

Knowing that the triggering 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, significant variations in the torque M are likely to cause nuisance trips.

The object of the present invention is to provide a device for fixing the shoes of a user to a sports accessory of the sports board type, which is easy to use, and which can be triggered manually in a simple manner, while having the safety conditions required for the practice of high-level sports. To this end, the present invention relates to a device for fixing a shoe of a user to a sports accessory, of the type comprising at least one fixing member comprising a support plate provided with means for fixing to the sports accessory. , an adjustment of the orientation of the shoe relative to the axis of the sports accessory, front and rear retaining means, the shoe being provided with front and rear anchoring means, the fixing tion being obtained by the engagement of the rear anchoring means in the rear retaining means, then by an engagement by pressing the front of the shoe of the front anchoring means in the front retaining means.

According to the present invention, ^the fastener includes a type restraint "step-in" of the shoe on the support plate of the fixing member, and which enables automatic engagement of the shoe, said retainer comprising on the one hand, at least one anchoring means secured to the sole of the shoe, and, on the other hand, retaining and locking means of at least one anchoring means, said retaining means and being locked on said support plate, the front anchoring means comprising at least one movable hook in rotation in the sole of the shoe on an axis, resiliently biased by a spring in a closed position against a retaining member front retaining means, the movable hook being able, on the other hand, to be controlled in rotation, against its elastic return, by means which can be actuated manually by the user.

According to a characteristic of the invention, the retaining member has, with respect to the movable hook, a prominence comprising on the one hand an upper surface intended to guide the movable hook under the prominence, and the slope of which is defined in such a way so that the force in contact with the movable hook exerts a moment on the movable hook biasing it in rotation against an elastic restoring force, and on the other hand a lower surface against which the movable hook rests in position closing, and whose slope is defined so that the contact force of the movable hook exerts a moment on the movable hook which is less in absolute value at the moment resulting from the friction force at the point of contact.

According to another characteristic, the movable hook of the front anchoring means is formed in a first rod pivotally mounted in the sole of the shoe, preferably arranged transversely relative to the longitudinal axis of the shoe, the rod comprising a substantially folding U-shaped, preferably centered relative to the longitudinal axis of the shoe, and the lower end of which is intended to cooperate with the retaining member of the support plate when the shoe is engaged, a reminder elastic from its angular position towards the closed position, against the retaining member produced either by the action of the spring, or by the elasticity of the upper, against a support of the shoe, at least one bent end, connected to a manual control member to allow pivoting of the rod towards an open position, against the elastic return.

Provision may then be made for the retaining member of the front retaining means to be produced by a sheet metal projection formed in a sheet of the support plate. In another embodiment, the front retaining means comprise a second rod held transversely by two lateral front flanks of the support plate and intended to serve as a support at the front of the shoe, and to cooperate with a stop of the means ^anchor prior to retain the boot along ^the longitudinal axis, the lateral flanks before per- putting the other hand to keep the front of the boot laterally.

According to yet another embodiment, the rear retaining means comprise a third rod held transversely by two rear lateral flanks of the support plate, and intended to serve as a fitting means for the rear anchoring means of the shoe, the flanks rear side to ^the other to maintain the back of the shoe laterally ment.

In this case, the rear anchoring means may include notches formed in the lateral wings of a folded sheet substantially in the shape of a U fixed in the sole of the shoe and intended to fit into the third upper, the lateral wings which can also be used for lateral positioning of the rear of the boot relative to the rear lateral flanks of the support plate.

It will then be possible to provide that the rear anchoring means comprise a housing for the third rod formed between three legs of a sheet metal fixed to the shoe, the middle leg preferably being folded down so that the third rod can wedge between the lower surfaces of the side legs and the upper surface of the middle leg. As a variant, the rear retaining means comprise notches in the rear lateral flanks of the support plate intended to serve as a means of fitting a fourth rod of the rear anchoring means which is fixed transversely in the sole of the shoe. According to another variant, the rear anchor means comprise an adjusting their position along the longitudinal axis of the shoe by means ^of a screw bearing on the one hand on an abutment of the anchoring means, and on the other hand on a shoe stop.

According to another embodiment of the present invention, the support plate is kept, 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 torsional release device, which releases the rotation of said support plate when a torque on the shoe exceeds a predetermined value, the fastening device comprising a release device of at least one locking means of said retaining device "step in" type, actuated by manual means and / or by said connecting means to separate the shoe from the fastening member, and means for actuating the connecting means actuated after tripping of the tripping device and beyond a certain angle of rotation of the support plate relative to its angular locking position.

According to this embodiment, the actuation means of the connecting means of each fixing member comprise, on the one hand, an arm held articulated by a pivot around a second axis integral with the support plate and comprising a stop retaining one end of a sheath or cable of the connecting means, and. on the other hand, a cam secured to the gliding board, centered on the first axis. cooperating with a boss on the arm or with a roller kept pivoting on the arm at a certain distance from the second axis. and which controls a rotation of said arm and a displacement of the sheath and / or of the cable during the rotation of the support plate, after triggering of the torsional triggering device.

We can then provide that the triggering device of at least one locking means as well as the actuating means of the connecting means comprise a slide or a lifter kept guided in translation by a guide or respectively articulated by a pivot around. a third axis of the support plate; energy generation means which resemble the slide, respectively the lifter, towards a stop of the support plate, in the engaged position of the fastening, a stop linked to the support plate and which limits the movement of the slide respectively of the spreader in a release position which allows the shoe to be released, a stop for retaining the end of the cable or the sheath and arranged so that a traction of said cable, respectively a compression of said sheath, displaces said slider or said lifter against said energy generation means, said slider or said lifter comprising a surface intended to push a removable stop member in order to cause the triggering of the locking means, the cam comprising projecting ramps intended to push said arm towards the outside of said cam during the rotation of the support plate, said arm displacing the sheath, respectively the cable, so as to cause an increased traction of the cable, respectively an increased compression of the sheath, pulling respectively pushing the sliders or the spreaders of the two fixing members against their means of energy generation.

As a variant, the device for triggering at least one locking means as well as the means for actuating the connecting means comprise a slide or a lifter kept guided in translation by a guide or respectively articulated by a pivot around a third axis of the support plate; energy generation means which resiliently recall the slider, respectively the lifter, towards a stop of the support plate in a release position which allows the release of the boot, stops linked to the support plate and which limit the displacement of the slider respectively of the lifting beam in the direction which goes against the energy generation means, a stop for retaining a corresponding end of the cable or sheath and arranged so that a pull of said cable, respectively a compression of said sheath, moves said slider or said spreader against said energy generating means, said slider or said spreader having surfaces intended to push a removable stop member in order to cause the triggering of at least one locking means, said cam comprising a bearing surface of the boss or of a roller of said arm, on a first substantially circular part, so that the cable, respectively the sheath, maintains the means for generating energy in the maximum energy position when the torsion release device is in the engaged position, and which, on either side of the first part has a slope such that the arm approaches said cam during the rotation of the support plate after triggering of the torsional release device, said arm displacing the sheath, respectively the cable, of so as to reduce the tension in the cable, respectively the compression of the sheath, allowing the translation of the slider or the rotation of the lifter of each fixing member, driven by said energy generation means.

According to another variant, a device for triggering in torsion of each attachment comprises, on the one hand, a cam centered on the first axis and integral with the cam, said cams being possibly produced in the same cam, and, on the other hand , at least one "torsion" arm kept pivoting on the support plate by a pivot and comprising, at a certain distance from said pivot, either a cavity intended to cooperate with at least one boss of said cam, either a boss, or a roller, intended to cooperate with at least one cavity formed in the side of the cam so that the boss is positioned in a cavity in the engaged position of the torsional triggering device, and comes out of the cavities upon triggering of said device with a dependent triggering threshold shapes of the surfaces in contact with the cavities and the bosses, each "twisting" arm being resiliently returned to a position which allows the interaction of the boss and the cavities by at least one energy generating means.

In this case, an energy generation means of a torsion trigger device comprising two "torsion" arms consists of at least one elastic member, the prestress adjustment of which is carried out either by a bolt passing through the arms of "twisting" through cavities, either by a tie comprising a light allowing the passage of the end of the arms, at least one of the ends of said bolt or said tie serving as a stop for said elastic member holding the latter in abutment a "twist" arm. Advantageously, the support plates are each pivotally held against an anti-friction plate of the gliding board by a shoulder of the cam, said cam being itself held integral with a base plate of the gliding board by means a conical socket and a clamping means, ensuring the rotation is blocked and allowing the angular position of said cam to be adjusted on the gliding board.

In all cases. when the "step in" type retainer comprises locking means provided with a lock kept articulated on a pivot arranged so that the housing of said lock intended to cooperate with an anchoring means approaches or moves away from said anchoring means according to the angular position of said latch, provision may be made for said latch to be kept locked in the engaged position of the boot, by a removable abutment member, such that the anchoring means is trapped in the housing, said abutment member removable being on the one hand, recalled in a stable position for blocking the bolt by at least one elastic member, and on the other hand, driven by the action of the slider or the lifter when the fixing member is released, towards an open position which allows the bolt to move so that the anchoring means escape from their housing releasing the boot from the binding.

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: - Figure 1 shows 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 mutually triggerable triggerable bindings, comprising two fastening members connected by a connecting means,

FIG. 3 is a sectional view, in the median plane (xz) of a first embodiment of a fastening member and of a shoe in the engaged position,

- Figure 4 is a sectional view along A- A of Figure 3.

- Figure 5 is a kinematic diagram of a first embodiment of the actuating means of the connecting means of two fastening members, the connecting means cooperating with trigger devices to spreader to release the shoes of the organs of fixation,

FIG. 6 is a diagram similar to FIG. 5 for a second embodiment of the actuation means of the connecting means of two fixing members, the connecting means cooperating with spreader trigger devices making it possible to release the shoes,

- Figure 7 is a diagram similar to Figure 5. for a variant of the first embodiment of the actuating means of the connecting means of two fixing members, the connecting means cooperating with slide release devices allowing to release the shoes.

- Figure 8 is a diagram similar to Figure 6, for a variant of the second embodiment of the actuation means of the connecting means of two fixing members, the connecting means cooperating with slide release devices allowing to release the shoes.

FIG. 11 is a sectional view of an exemplary embodiment of the means for fitting the front of a shoe onto a binding,

- Figure 12 is a perspective view of a first embodiment of the means for fitting a shoe onto a binding, - Figure 13 is a perspective view of a second embodiment of the fitting means a shoe on a binding,

FIG. 14 is a perspective view of a third embodiment of the means for fitting a shoe onto a binding,

FIG. 15 is a perspective view of an exemplary embodiment of the means for fitting the rear of a shoe onto a binding,

FIG. 16 is a perspective view of another exemplary embodiment of the means for fitting the rear of a shoe onto a binding,

- Figure 17 is a sectional view in the median plane (xz) of a shoe.

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 both feet of the user are held by 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 5 (see FIG. 3), allowing, in known manner, the adjustment in particular the spacing of the fasteners, and therefore 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 6 kept pivoting about an axis 01 of the gliding board 1. the axis 01 is preferably perpendicular to the plane of the board l.

An exemplary embodiment ^of a fastener 2, 3 of a Releasable binding assembly mutually trigger is described below with reference to Figures 3 and 4.

Before describing exemplary embodiments of actuating means of the connecting means 4 of two fastening members 2. 3. in particular with reference to FIGS. 5 to 8, the following is successively described:

- various embodiments of a “step in” type retainer of a shoe on a binding 2 or 3, with reference to FIGS. 3, 11, 13, 16, and 17. that is to say a device allowing the automatic engagement of the binding 2 or 3 on the shoe. The engagement on the binding 2 or 3 is carried out, in the variants of devices which we present below, by the successive engagement, of the back of the shoe, then of the front of the shoe by support of the foot . 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 fixing automatically triggered.

- a pivot link of the support plate 6 of a binding 2 or 3 on the gliding board 1 with reference to FIG. 3, - a device for triggering a torsion of a binding 2 or 3, with reference to FIGS. 3, 4, 9, and 10,

A "step in" type restraint includes:

- rear retaining means, and front retaining means, integral with the support plate 6, - rear anchoring means, and front anchoring means, integral with the shoe.

The front and rear anchoring means cooperating respectively with the front and rear retaining means, in the engaged position of the boot on the binding. We will now describe different embodiments of the front and rear anchoring means of the boot, and front and rear retaining means of the support plate 6. Each different combination of these examples is a new embodiment of the device. retained step type.

We will now describe the general characteristics of the front retaining means, which enable the front anchoring means to be engaged, in a stable locking position, with reference to FIG. 11: The front retaining means comprise a locking member, hereinafter called lock 7, in the application of a security fastening. The locking member 100 or the latch 7 has a beak-like prominence on which an element of the front anchoring means such as a hook 101, pivotally mounted on an axis 102 of the sole, engages during the shoe engagement. The upper surface of the protuberance has a slope 8 intended to guide the hook 101 towards a housing 9. The slope 8 is defined so that the force in contact with the hook 101, when the shoe is engaged, exerts a moment on said hook, pivoting it against an elastic return exerted by a spring 103. The surface of the housing 9 which is intended to retain the hook in the engaged position of the shoe, has a slope 10 defined such that so that the contact force F _c of the hook exerts a moment M _c = c F _C on the hook which is less in absolute value, at the moment M _f = f.Ff resulting from the friction force F _f at the point of contact.

The locking member 100 may be formed by folding a sheet 105 secured to the support plate 6, and may include ribs to stiffen the cantilevered part. According to the representation in FIG. 14, the locking member is formed in a sheet which itself constitutes the support plate 6.

An example of rear retaining means of rear anchoring means will be described, with reference to FIG. 12.

The rear retaining means are formed in a boss 110 in elevation relative to the upper plane of the binding. Said boss comprises functional areas such as:

a support area of the sole 111,

- a notch 112 intended to guide and hold the shoe laterally, preferably arranged towards the middle of the boss, - prominent zones 113 towards the rear of the binding, arranged on either side of the notch 112, showing housings 114 intended to cooperate with anchoring means 115 of the rear of the shoe.

The shoe has support zones complementary to the functional zones 1 11, 112, 114 preferably located at the heel. The geometry of the areas intended to be in contact must be optimized for:

- that the fitting is easy when the shoe is engaged,

- the shoe can be released by tilting backwards and laterally as well as in rotation, and

- limit the accumulation of snow. The front anchoring means shown in Figures 12 and 13 comprise a hook 101 formed in a first rod 1 16 pivotally mounted in the sole of the shoe, preferably arranged transversely to the longitudinal axis of the shoe, the hook 101 can be attached to the rod 1 16 by welding (Figure 13). or formed on said upper by a bend 117 substantially in a U shape. The hook 101 is preferably centered relative to the longitudinal axis of the shoe: its lower end is intended to cooperate with a locking member or latch 7 of the support plate 6, in the engaged position of the shoe. The rod 1 16 is resiliently recalled in an angular closed position, in a notch 9 of the lock 7. The elasticity can be advantageously obtained by the deformation of said rod itself, against a support 120 of the shoe (Figure 13) .

The rod 116 may include a manual actuation means making it possible to pivot the said rod in an open position, so as to release the hook 101 from the housing 9. This manual actuation means allows the user to separate his shoe from the binding to leave the board. The pivoting of the upper 116 towards an open position can be obtained by means of a handle 121 connected to a bent end of the upper, on the side of the shoe (FIG. 13). According to another example, the rotation of the rod 116, or of the latch 101 can be controlled by a cable or a rope 104 passing through the shoe, and accessible at the level of the tibia (FIG. 11).

The front anchoring means also comprise positioning and abutment means, cooperating with front retaining means, for retaining the boot laterally and rearward. For a safety fastening, the geometry of the front support must allow easy lateral release of the shoe when triggered. In the example shown in FIGS. 12 and 13, the lateral positioning means is produced by a cylindrical surface formed longitudinally in a recess of the shoe, and intended to be wedged on a complementary surface formed in a boss of the support plate 6 The shoe can be held back by the bolt 7, said bolt having a notch 122 on its upper part in order to receive a part 123 of the upper 116. The notch 122 can naturally serve as a stop for another element of the front anchoring means, such as a folded part (not shown) of a sheet 140 used to hold the rod 1 16 against the sole (Figure 14).

We will now describe various alternative embodiments of the front and rear retaining means.

With reference to FIG. 13, the rear anchoring means comprise notches 124 formed in lateral wings 125 of a sheet 126 folded substantially in the shape of a U fixed in the sole of the shoe, and intended to wedge on the ends of a rod 127 in order to retain the rear of the shoe, vertically and forwards. The rear retaining means therefore consist of the rod 127. and the boss 128 of the support plate 6, which serves to hold the said rod. The sides 129 of the boss 128 also serve as lateral positioning means for the wings 125.

Referring to Figure 14, the front retaining means comprise a rod 141 held transversely by two front lateral flanks 142 of the support plate 6 and intended to serve as a support at the front of the shoe, and to cooperate with a stop 143 front anchoring means for retaining the boot along the longitudinal axis, the front lateral sides 142 on the other hand allowing the front of the boot to be held laterally.

The rear retaining means comprise a rod 144, held transversely by two rear lateral flanks 145 of the support plate 6, and intended to serve as a fitting means for the rear anchoring means 124, 125, 126 (described above with reference in FIG. 13), the rear lateral flanks 145 making it possible, on the other hand, to maintain the rear of the shoe laterally.

Referring to Figure 3, the support of the rear of the shoe is obtained by at least one lug 11 of the shoe intended to be positioned in cavities 12 of a boss 13 secured to the support plate 6. In another variant, the lug (s) 11 could also be held in said boss and cooperate with heel or sole cavities. To avoid any snow jam, the boss 13 or the heel may include lights 14 connecting the cavities 12 to the outside. The boss 13 also comprises a bearing surface 14 of the shoe.

Referring to Figure 15, the rear anchoring means comprise a housing of the rod 144 formed between three legs 150, 151, 152 of a sheet 153 fixed to the shoe, the middle tab 151 preferably being folded down so that said rod 144 can be wedged between the lower surfaces of the side tabs 150, 152 and the upper surface of the middle tab 151.

With reference to FIG. 16, the rear anchoring means can be produced by a rod 160 disposed transversely in the sole, and the ends of which are intended to cooperate with notches 161 formed in lateral flanks 162 of the support plate, s raising on either side of the shoe. Said lateral flanks also making it possible to position the rear of the shoe, laterally. The anchoring or retaining means preferably comprise an adjustment of their positioning along the longitudinal axis of the shoe, to allow the take-up of any wear and tear.

According to the example of FIG. 17. the rear anchoring means can be brought closer with precision to the front anchoring means, by means of a screw 170 bearing on the one hand on a stop 126a, 153a of the means of anchoring 126, 153, and on the other hand on an element integral with the shoe 171.

According to the example of FIG. 3. the adjustment could be carried out for example by a displacement of the boss 13 on the support plate 6. by a displacement of a part of the heel on the sole, by adjustable lugs 11 or lugs 11 interchangeable of different lengths.

The anchoring and retaining means, front and rear, include engagement surfaces, such as rounded or chamfers 125a, 143a, 145a, 154, 162a, (FIG. 13, 14, 15, 16, 17), intended to facilitate their fitting when the shoe is engaged on the binding.

These surfaces are shown only by way of nonlimiting example, and can be of different geometries, and formed in other parts than those presented above. 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 introduce the anchoring means in their corresponding retaining means . In a second phase, the user presses on the front of the shoe, causing the hook 101 to pivot on the surface 8, against its elastic return. The shoe is engaged on the binding when the hook 101 is wedged in the housing 9 of the locking member 7, 100.

In the examples of restraint devices of the "step in" type described above, the interlocking of the rear anchoring means in the rear retaining means is effected by a movement of the foot forwards, the interlocking then being guaranteed by an interlocking, front anchoring means in corresponding retaining means, which prevents the shoe from moving back; but it is entirely possible to have a reverse arrangement, such that the interlocking of the rear of the shoe is effected by a movement of the foot towards the rear, the front interlocking means preventing the shoe from advancing .

The pivot link of a binding 2, 3 is now described with reference to FIG. 3: the support plate 6 is centered and retained vertically on the board 1 by a shoulder formed in a cam 18, which is fixed on a plate base 16 fixed by screws 5 to the gliding board 1. In order to favor the rotation of the support plate 6 relative to the gliding board 1, an anti-friction sheet 17 is interposed between said support plate 6 and the gliding board l.

The cam 18 comprises on the one hand, surfaces which make it possible to actuate the connection means 4 during the rotation of the support plate 6, and on the other hand, surfaces which cooperate with the device for triggering in torsion, for transmit the torsional forces M _z to the base plate. The angular position of this cam 18 on the base plate 16 determines the orientation of the attachment along the z axis, in the engaged position of the attachment. The fixing of the cam 18 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 18 is positioned by a conical fitting on the base plate 16 and tightened vertically by a screw 19 which ensures a rigid fitting and a rotation lock by friction in the angular position desired by the user. The cam 18 transmits the force M _z to the base plate 16 and therefore to the gliding board 1, and in order to prevent possible sliding of said cam 18 on the cone of the base plate 16, striations or toothing can be made on the contact surfaces of the conical parts.

In another embodiment, the friction surface of the conical assembly can be increased, by producing a conical crown in the base plate 16, and a corresponding groove, in the cam 18.

The torsion release device comprises two “torsion” arms 20 (FIGS. 3 and 4) arranged on either side of the cam 18, and pivotally mounted at one of their ends on the support plate 6 by axes pivot 21, preferably parallel to the axis Ol. The arms 20 each have, at a certain distance from their pivot axis

21, a boss 22. The boss 22 can be produced by means of a roller kept pivoting on an axis 23, in order to reduce the contact friction with the cam 18. the bosses 22 are intended to cooperate with cavities or notches main 24 formed in the side of the cam

18, so as to block the rotation of the support plate 6 relative to the base plate 16 in the engagement position of the attachment 2 or 3. The arms 20 are resiliently biased towards one another in a position which allows the interaction of the bosses 22 and the cavities 24 by an energy generation means. According to another exemplary embodiment of the device for triggering in torsion, the cam 18 may include bosses intended to cooperate with cavities formed in the arms 20.

The energy generation means consists of two compression springs 25. These springs 25 are kept pressed against the arms 20, by means of a tie rod 26 and a screw 27 for adjusting the level of triggering in torsion. The tie rod 26 passes through the springs 25, the said tie rod being provided with a light 28 through which the ends of the arms 20 can move in order to cooperate with the springs 25. The tie rod 26 has at its ends on the one hand a stop 29 for retaining a first spring 25. and on the other hand a thread for receiving the threaded end of the screw 27. The head of the screw 27 serving as a stop for the second spring 25.

The tie rod 26 is therefore mounted "floating" between the two springs 25. This assembly guarantees equal preload on each spring 25.

In an alternative embodiment, the tie rod 26 can be replaced by a screw passing through cavities formed in the arms 20 as well as inside the springs 25. so that the head of said screw and a nut of said screws each press on the end of a spring 25.

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 20. The other ends of the springs are fixed on a second arm 20 by optionally interposing an adjustment element consisting of a screw and a nut. The side of the cam 18 may comprise, on each side of the cavities 24, at least one auxiliary cavity or notch (not shown) intended to cooperate with the boss 22 so that each boss 22 engages successively from an auxiliary cavity to the other, when the torsional triggering device is triggered. The torque M _z necessary to trigger said device depends on the shapes of the surfaces in contact with said cavities and bosses 22, and naturally on the force exerted by the energy generation means 25.

The auxiliary cavities are preferably asymmetrical in that each has a smaller slope in the direction of the nearest cavity 24 than in the opposite direction, so that the torque M _z , which makes it possible to return the binding to the ""(bosses 22 positioned in the cavities 24) is significantly lower than the torque M _z which causes tripping.

We now describe the triggering of the torsional triggering device when a torque M _z is transmitted between the boot and the support plate 6. The triggering of said device occurs when the torque M _z is no longer balanced by the torque resulting from the contact forces of the bosses 22 in the cavities 24 of the cam 18. The radial components of the contact forces on said rollers separate the arms 20 against the force of the springs 25. The bosses 22 escape from the cavities 24. There is triggering of the torsional triggering device when the bosses 22 come to bear on ramps 30 of the cam 18, the slopes of the ramps 30 favoring the rotation of the support plate 6 in the direction of torque causing the trip. The arms 20, supporting the bosses 22, approach each other by being recalled by the energy generation means 25, by exerting on the support plate 6 a torque in the direction of tripping, which promotes the rise of a boss 31 on a ramp 32, as described more precisely below. The ramps 30 preferably correspond to the ramps 32 so that when the bosses 22 start to slide on the ramps 30, the boss 31 begins to mount on one of the ramps 32.

The rotation of the support plates 6 of the bindings 2. 3 must be limited to avoid pulling and damaging the connecting means 4, during excessive rotation of the support plates 6 after release of the shoes. The rotation can be blocked by stops of the torsional triggering device, for example by having stops 33 at the bottom of the ramps 30 of the cam 18, on which the bosses 22 are wedged, after triggering of the triggering device. in torsion.

The device for triggering the "step in" type restraint device comprises (FIGS. 3 and 4):

- The lock 7 of one of the "step in" type retention devices described above, the lock 7 being held by a pivot 34 disposed transversely in the support plate 6;

- A removable stop 35, guided in translation in a cavity of the support plate 6. Said stop 35 is returned to a stable position by the spring 36, to constitute a rigid stop 37 on which the latch 7 rests in position closing. The removable stop may include rollers 38 in contact on the one hand with the support plate 6, and on the other hand with the latch 7, in order to reduce the friction which opposes its translation.

- A lifting beam 39, kept pivoting about an axis O4 of a support plate 6 and, in this example, coaxial with the pivot axis 21 of one of the "torsion" arms 20 by simplification of construction; the spreader 39 is connected to the connection means by a stop 44 and further comprises a bearing surface 39a intended to push the removable stop 35 against the spring 36.

The connecting means 4 is, for example, a Bowden cable, which comprises, on the one hand, a sheath 40 cooperating with the spreaders 39 to move, in each attachment 2, 3, the removable stop member 35 of the device for triggering the "step in" type retaining device, and allowing the lock 7 of the retaining device to rotate, and, on the other hand, a cable 41 of the sheath 40 between the fasteners 2 and 3.

The actuation means of the connecting means 4, comprise, in each attachment 2, 3, an arm 42 kept pivoting about an axis O3 of a support plate 6, the axis O3 being in this example, by simplification of construction, coaxial with the pivot axis 21 of a "torsion" arm 20, facing the axis 04 of the lifter 39; each arm 42 comprises a stop 43 of the cable 41 and a stop 31. intended to cooperate with zones 32a and 32 of the side of the cam 18; the area 32a is circular with a center 01. and is bordered by ramps 32 intended to push the boss 31 so that it moves away from the axis 01, pivoting the arm 42 for triggering the fasteners 2 and 3.

The actuation of the connecting means 4 is caused by the rotation of a first attachment 2 or 3, that is to say the rotation of a support plate 6 around a cam 18, following the triggering of the torsional triggering of said attachment. Beyond a certain angle of rotation, in one direction or the other, the arm 42 is pushed by a ramp 32, exerting traction at one end of the cable 41. The other end of the cable 41, in the second attachment 3, or respectively 2, being blocked by an arm 42 abutting against the area 32a of the cam 18, the traction of the cable results in compression of the sheath 40 of the Bowden cable. The compression of said sheath pushes, in each attachment 2 and 3, the lifter 39, which itself pushes the removable stops 35 against the spring 36, in a triggering position, allowing the rotation of the latch 7 and the release of the hook 101.

In order for said device to be able to reinitialize, it is necessary to rotate by hand the fixing which started in "twist", to put it back in the "engaged" position (bosses 22 wedged in the cavities 24). The user must be able to release his shoes from his bindings effortlessly when he wishes to walk. A manually accessible cable or lever can be placed in a fixing 2, 3 so as to control the pivoting of the arm 42 or of the lifting beam 39 or the movement of the removable stop member 35. An exemplary embodiment is presented in the figure 4, by means of cables 41a and 41b which actuate the lifter 39 respectively the arm 42.

The connecting means 4 may comprise, on one end of the sheath 40 or of the cable 41, an adjustment means making it possible to vary the length of the sheath relative to the cable. In the example of FIG. 4, the adjustment can be carried out by the stop 44, one end of which is screwed into the lifter 39. FIG. 5 makes it possible to explain the mutual triggering of the fixing members 2, 3 after triggering of the device for triggering in twist a binding 2 or 3, using the first embodiment of the actuation means of the connecting means 4, which is the cable 41 with sheath 40 of the type known as the Bowden cable, previously described. Each support plate 6 includes: - a shoe retaining device comprising rear retaining means for rear anchoring means of a shoe and at least one locking means 7, 35 of at least one anchoring means 101 referenced as in no way limitative examples (FIG. 3),

- an axis pivot 01, - a torsional release device, not shown, for resiliently holding the support plate 6 in a stable angular position ("engaged" position of said device) and releasing the rotation of said plate 5 around the axis 01 when a torque M _z 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 FIG. 4;

- a device for triggering the locking means 7, 35 of the retaining device; said locking means are referenced with reference to the embodiment of Figure 3, they are shown schematically in Figures 5 to 8 and can therefore be made differently, depending on the configuration of the shoe retention device. The triggering device comprises a lifter 39 (of the attachment 2 or 3) kept pivoting on an axis O4, and on which is supported a removable stop member 35, by at least one elastic member 36; the removable stop member 35 is shown in a position which maintains at least one latch 7 in the engaged position; said abutment members 35 allow, when they are pushed back by the lifter 39 against the elastic members 36, the movement of the latches 7 releasing the shoe; according to two different configurations of the triggering device, the spreader 39 is:

. is recalled elastically, by means of energy generation 50, in a triggering position by pushing the stop members 35,. either maintained by the compression of the sheath 40, in the latching position against the energy generation means 50,

- means for actuating the connecting means 4 comprising:

. the sheath 40 between the fasteners 2 and 3, held between the stops 43 of the spreaders 39 of the respective fasteners 2 and 3, so that compression of said sheath 40 exerts moments on said spreader 39 which are opposite to the moments exerted by the energy generation means 50;

. the cable 41, which connects the arms 42 of the respective fasteners 2 and 3, being fixed by its ends to said arms 42 by stops 43; each arm 42 is kept pivoting about an axis O3 of the corresponding support plate 6; the rotation of the arms 42 is controlled by a cam 18 secured to the board slides 1, and on which said arm 42 is supported by means of a possible roller, so that the rectilinear distance which separates the stops 43 decreases, allowing the rotation of the spreaders 39.

The sides of the cam 18 intended to be in contact with the arm 42 comprise, on the one hand, a substantially circular zone 32a which maintains the arm 42 in a "latching" position as shown in FIG. 3, and, d on the other hand, on each side of zone 32a. ramps 45 allowing the arm 42 to pivot towards the inside of the cam 18 during rotation, in one direction or the other, of the support plate 6, after triggering of the torsional triggering device. The pivoting of the arm 42 causes the cable 41 and the sheath 40 to relax, allowing the spreader bars 39 to be in the tripping position, these being driven by the energy generation means 50.

Stops limit the rotation of the spreaders 39 such as:

the stops 46 limit the rotation of said spreaders in the release position,

the stop 47 limits the rotation of the lifter 39 in the latching position, FIG. 6 shows a second embodiment of the actuation means of the connecting means 4.

It will be recalled that, in the embodiment of FIG. 5, the relaxation of the cable 41 allows the rotation of the spreaders 39, which are driven by their energy generation means 50, 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 41, which thus drives the spreaders 39 in the triggered position.

It is further specified that FIG. 6 is a kinematic diagram of the actuation means of the embodiment described above with reference to FIGS. 3 and 4; The connecting means 4 comprises, on the one hand, a sheath 40 which cooperates with spreaders 39 to move the removable stop members 35 of the fasteners 2, 3, and allow the movement of the latches 7. It comprises, on the other hand , a cable 41 which cooperates with arms 42, in the same manner as in the example in FIG. 3. The arms 42, on the other hand, cooperate with the sides of the cams 18, which differ from those of the cams 18 in FIG. 5 by the fact that they now push the arms 42 towards the outside of said cams, when the fastening is released.

The connecting means 4 is actuated by the rotation of the support plate 6 around the cam 18, according to the same operating principle as that described above, in the embodiment of Figures 3 and 4. The length of the cable 41 is chosen so that the said cable is slightly _relaxed , allowing the removable stop members 35 to be each held in abutment by its energy generation means 36. against a stop of the support plate 6 or against the pa _¬ lonnier 39 whose rotation is limited by a stop 47 (the stops 47 define a reference position of the engagement position of the removable stop members 35).

The friction of the cable 41 in said sheath 40 has the consequence, during the compression of the sheath 40 caused by the cable 41, that only one of the spreaders 39 is driven by the sheath 40. To guarantee that the displacement of the sheath 40 rotates the spreaders 39, stops 46 have been arranged in order to limit the rotation of said spreaders 39, so that when one of them arrives in the release position against a stop 46, the sheath 40 is forced to move by so as to drive the other lifter 39 into the release position.

Figure 7 is a diagram similar to Figure 5. 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 slider 48 instead of spreaders 39.

Each slider 48 is kept guided in translation in a support plate 6 of a fixing 2, 3. Said sliders replace the lifting beams 39 of the preceding examples in order to push the removable stop members 35 into a triggering position. The actuation means of the connecting means 4 of the two fixing members 2, 3 are distinguished from those of FIG. 5 by the fact that the sheath 40 is now supported on the arm 42, the cable 41 being connected to the slides 48 .

Each slide 48 comprises:

a stop 43 for hanging the cable 41,

energy generation means 50 which resiliently recall the slide 48 in a triggering position,

- A ramp 49 intended to push a stop member 35 against the elastic members 36 in a release position which allows the movement of the latches 7 releasing the shoe.

Stops limit the movement of the slides 48 such that: the stops 46 limit the movement of the slides 48 in the release position,

the stop 47 limits the movement of the slide 48 in the latching position,

FIG. 8 is a diagram similar to FIG. 6, for a variant of the second exemplary embodiment of the actuation means of the connecting means of two fixing members, the connecting means 4 cooperating with slide release devices 48. The cou- scissors therefore have the same action on the removable abutment members 35 as the spreaders 39.

Each slide 48 is arranged in the support plate 6 in a similar manner to FIG. 5.

We simply recall briefly the elements allowing the actuation of said connecting means 4.

Each slide 48 comprises:

a stop 43 for hanging the cable 41,

- energy generation means 51 which elastically hold said slide 48 in an engagement position against a stop 47, - ramps 49 intended to push the stop members 35 against their elastic members 36 in a position trigger which allows the movement of the latches 7 releasing the shoe,

a stop 46 which limits the movement of said slide 48 in the release position

- A stop 47 which limits the movement of said slide 48 in the engaged position. In other embodiments of Figures 3 and 4, the actuating means of the connecting means 4 may have a configuration similar to that presented in Figures 7 and 8, according to which the ends of the sheath 40 are each supported on an abutment of the arms 42, and the ends of the cable 41 are linked to a lifting beam 39. Likewise, in other exemplary embodiments of FIGS. 7 and 8, the actuation means of the connecting means 4 may have a configuration similar to that presented in FIGS. 5, and 6, according to which the ends of the cable 41 are each kept linked to an arm 42, and the ends of the sheath bearing on a slide 48.

In the variant embodiments comprising a mutual triggering by pulling the cable 41, it is important to protect the cable in the event that the two fasteners trigger in torsion. In fact, the movement of the spreader bars 39 is limited by the stops 46 when a first attachment is triggered. These said stops do not allow additional movement of the cable relative to the sheath that would require the triggering of the second attachment. A protective member such as a prestressed spring can be arranged in series with the sheath or the cable. The prestressing force being provided greater than the force to be transmitted by the sheath 40 or the cable 41 when one of the fasteners triggers.

Of course, the invention is not limited to the embodiments which have been described, but it is on the contrary liable to receive numerous modifications which will appear to a person skilled in the art. Thus, for example, any variant described for the front retaining and anchoring members could be used with any variant described for the rear retaining and anchoring members. Likewise, provision may be made for the anchoring and retaining means to be swapped, that is to say that the means described in connection with the shoe may be provided on the sports accessory, to cooperate with means described in connection with the sports accessory which will then be provided on the shoe. Similarly, the retaining and anchoring means described for obtaining the engagement of the rear anchoring means in the rear retaining means, then by engaging the support of the front of the shoe with the anchoring means front in the front retaining means, may as well be made so that the engagement is obtained by a movement of the foot from the rear to the front as by a movement of the foot from the front to the rear.

Claims

l - Device for fixing ^a shoe ^to a user on a sports implement (1), of the type comprising at least one fastening member (2, 3) comprising a support plate (6) provided with fixing means on sport accessory (1), an adjustment of the orientation of the shoe relative to the axis of the sport accessory (1), front and rear retaining means, the shoe being provided with means front and rear anchoring, the fixing being obtained by the engagement of the rear anchoring means in the rear retaining means, then by an engagement by pressing the front of the shoe of the front anchoring means in the front retainer, characterized in that the fixing member (2, 3) comprises

- a step-in type shoe retainer on the support plate (6) of the fastening member (2, 3), and which allows automatic engagement of the boot, said retainer comprising, d on the one hand, at least one anchoring means (101, 11, 117, 115, 118, 123, 143, 126, 153, 160) integral with the sole of the shoe, and, on the other hand, means of retaining (119, 114, 112, 122, 13, 15, 127, 114, 144, 162), and locking (7, 35) of at least one anchoring means (101), said retaining means and locking being mounted on said support plate (6), the front anchoring means comprising at least one movable hook (101, 13) rotating in the sole of the shoe on an axis (102), resiliently recalled by a spring (103) in a closed position against a locking member (100, 7) of the front retaining means, the movable hook (101, 13) being able, on the other hand, to be controlled in rotation, against its elastic return , pa r a means which can be actuated manually by the user.

2 - A fixing device according to claim 1, characterized in that the retaining member has opposite the movable hook (101, 13) a prominence comprising on the one hand an upper surface (8) intended to guide the movable hook (101, 13) under the prominence, and the slope of which is defined so that the force in contact with the movable hook (101, 13) exerts a moment on the movable hook (101, 13) urging it to rotate with the against an elastic restoring force, and on the other hand a lower surface (10) against which the movable hook (101, 13) bears in the closed position, and the slope of which is defined so that the force contact Fe of the movable hook (101, 13) exerts a moment (M _c = cF _c ) on the movable hook (101, 13) which is lower in absolute value at the moment ( _t - = fF _t -) resulting from the friction force (F _t -) at the point of contact.

3 - fastening device according to claim 1, characterized in that the movable hook (101, 13) of the front anchoring means is formed in a first rod (1 16) pivotally mounted in the sole of the shoe, preferably arranged transversely to the longitudinal axis of the shoe, the upper (116) comprising:

- a substantially U-shaped folding, preferably centered with respect to the longitudinal axis of the shoe, and the lower end of which is intended to cooperate with the retaining member (100, 7) of the support plate (6 ) when the shoe is engaged,

- An elastic return from its angular position towards the closed position, against the retaining member (100, 7) produced either by the action of the spring (103), or by the elasticity of the rod (116), against a support (120) of the shoe,

- At least one bent end, connected to a manual control member (121) to allow pivoting of the rod (116) towards an open position, against the elastic return.

4 - Fixing device according to claim 1, characterized in that the front retaining means comprise a second rod (141) held transversely by two front lateral flanks (142) of the support plate (6) and intended to serve as a support at the front of the shoe, and to cooperate with a stop (143) of the front anchoring means for retaining the shoe along the longitudinal axis, the front lateral flanks (142) also making it possible to maintain the front sideways.

5 - A fixing device according to claim 1, characterized in that the rear retaining means comprise a third rod (144, 127) held transversely by two rear lateral flanks (145, 129) of the support plate (6), and intended to serve as an interlocking means for the rear anchoring means of the shoe, the rear lateral flanks (145, 129) making it possible, on the other hand, to maintain the rear of the shoe laterally.

6 - Fixing device according to claim 5, characterized in that the rear anchoring means comprise notches (124) formed in lateral wings (125) of a sheet (126) folded substantially in the shape of a U fixed in the sole of the shoe and intended to fit into the third upper (144), the lateral wings being able on the other hand to be used for lateral positioning spoke (125a) of the rear of the shoe relative to the rear lateral flanks (145) of the support plate (6).

7 - Fastening device according to claim 5, characterized in that the rear anchoring means comprise a housing of the third rod (144) formed between three tabs (150, 151, 152) of a sheet fixed to the shoe, the middle tab (151) preferably being folded down so that the third rod (144) can wedge between the lower surfaces of the side tabs and the upper surface of the middle tab.

8 - Fastening device according to claim 1, characterized in that the rear retaining means comprise notches (161) in the rear lateral flanks (162) of the support plate (6) intended to serve as a fitting means for a fourth rod (160) rear anchoring means which is fixed transversely in the sole of the shoe.

9 - Fastening device according to one of claims 6 to 8, characterized in that the rear anchoring means comprise an adjustment of their positioning along the longitudinal axis of the shoe, by means of a screw taking support from on the one hand on an abutment (126a, 153a) of the anchoring means, and on the other hand on an abutment (171) of the shoe.

10. Fastening device according to claim 1, characterized in that the support plate (6) is kept, on the one hand, pivoting on the sliding board (1) around a first axis (Ol), and, d on the other hand, in an angular position of locking by a torsion release device, which releases the rotation of said support plate (6) when a torque (Mz) on the shoe exceeds a predetermined value, the fastening device comprising a device for triggering at least one locking means (7, 35) of said "step in" type retaining device, actuated by manual means (41a, 41b, 104, 121) and / or by said means of link (4) to separate the boot from the fastening member (2, 3), and means for actuating the link means (4) actuated after triggering of the torsion trigger device and beyond a certain angle of rotation of the support plate (6) relative to its angular position of worm rusting.

1 1. A fixing device according to claim 10, characterized in that the actuating means of the connecting means (4) of each fixing member (2, 3) comprise, on the one hand, an arm (42) held articulated by a pivot around a second axis (O3) integral with the plate support (6) and comprising a stop (43) retaining one end of a sheath (40) or a cable (41) of the connecting means (4), and, on the other hand, a cam ( 18) secured to the gliding board (1), centered on the first axis (Ol), cooperating with a boss on the arm (42) or with a gaiet kept pivoting on the arm (42) at a certain distance from the second axis ( 03), and which controls a rotation of said arm (42) and a displacement of the sheath (40) and / or of the cable (41) during the rotation of the support plate (6), after triggering of the torsion trigger device .

12. Fastening device according to claim 1 1, characterized in that the triggering device of at least one locking means (7, 35) as well as the actuating means of the connecting means (4) comprise:

- A slide (48) or a lifter (39) kept guided in translation by a guide or respectively articulated by a pivot around a third axis (04) of the support plate (6);

- energy generation means (51, 36) which resemble elastically the slide (48), respectively the lifter (39), towards a stop (47) of the support plate (6), in the engaged position of the fixing,

- a stop (46) linked to the support plate (6) and which limits the movement of the slider (48) respectively of the lifter (39) in a release position which allows the shoe to be released, - a stop (43, 44 ) retaining the end of the cable (41) or the sheath (40) and arranged so that a pull of said cable (41), respectively a compression of said sheath (40), displaces said slide (48) or said spreader (39) against said energy generation means (51, 36), said slide (48) or said spreader (39) having a surface (39a, 49) intended to push a removable stop member ( 35) in order to trigger the locking means (7, 35),

- the cam (18) comprising projecting ramps (32) intended to push said arm (42) towards the outside of said cam (18) during the rotation of the support plate (6), said arm (42) moving the sheath (40), respectively the cable (41), so as to cause an increased traction of the cable (41), respectively an increased compression of the sheath (40), pulling respectively pushing the sliders (48) or the spreaders (39 ) of the two fixing members (2, 3) against their energy generation means (51, 36).

13. Fastening device according to claim 1 1, characterized in that the device for triggering at least one locking means (7, 35) as well as the means for actuating the connecting means (4) comprise:

- energy generation means (50) which resemble the slide (48), respectively the lifter (39), towards a stop (46) of the support plate (6) in a release position which allows the release of the shoe,

- stops (47) linked to the support plate (6) and which limit the movement of the slider (48) respectively of the lifter (39) in the direction which goes against the energy generation means (50),

- a stop (43, 44) retaining a corresponding end of the cable (41) or of the sheath (40) and arranged so that a pull of said cable (41), respectively a compression of said sheath (40) , moves said slider (48) or said lifter (39) against said energy generating means (50), said slider (48) or said lifter (39) having surfaces (49) for pushing an organ removable stop (35) in order to cause the triggering of at least one locking means (7, 35),

- Said cam (18) comprising a bearing surface of the boss 31 or of a roller of said arm (42), on a first part (32a) substantially circular, so that the cable (41), respectively the sheath (40), maintains the energy generation means (50) in the maximum energy position when the torsion trigger device is in the engaged position, and which, on either side of the first part (32a) has a slope (45) such that the arm (42) approaches said cam (18) during the rotation of the support plate (6) after triggering of the torsion release device, said arm (42) displacing the sheath (40 ), respectively the cable (41), so as to reduce the tension in the cable (41), respectively the compression of the sheath (40), allowing the translation of the slide (48) or the rotation of the lifter (39) of each fixing member (2, 3), driven by said energy generation means (50).

14. Fastening device according to claim 12 or claim 13, characterized in that a device for triggering in torsion of each fastening (2; 3) comprises, on the one hand, a cam (18) centered on the first axis (Ol) and integral with the cam (6), said cams being possibly produced in the same cam (18), and, on the other hand, at least one "torsion" arm (20) kept pivoting on the support plate ( 6) by a pivot (21) and comprising, at a certain distance from said pivot (21) either a cavity intended to cooperate with at least one boss of said cam (18), or a boss (22), or a roller, intended to cooperate with at least one cavity (24) formed in the side of the cam (18) so that the boss (22) is positioned in a cavity (24) in the engaged position of the torsion release device, and comes out of the cavities (24) when the device is triggered with a threshold of trigger depending on the shapes of the contact surfaces of the cavities (24) and the bosses (22), each "twist" arm (20) being resiliently returned to a position which allows the interaction of the boss (22) and the cavities (24 ) by at least one energy generation means (25).

15. Fastening device according to claim 14, characterized in that an energy generation means of a torsion trigger device comprising two "torsion" arms (20) consists of at least one elastic member ( 25), the prestress adjustment of which is carried out either by a bolt (27, 78) passing through the "torsion" arms (20) through cavities, or by a tie rod (26) comprising a light (28) allowing passage from the end of the arms (20), at least one of the ends of said bolt (27, 78) or of said tie rod (26) serving as a stop for said elastic member (25) holding the latter in abutment against a "torsion arm" "(20).

16. Fastening device according to one of claims 14 or 15, characterized in that the support plates (6) are each pivoted against an anti-friction plate (17) of the gliding board (1) by a shoulder of the cam (18), said cam itself being held integral with a base plate (16) of the gliding board (1) by means of a conical socket and a clamping means (19), ensuring blocking the rotation and allowing the angular position of said cam (18) to be adjusted on the gliding board (1).

17. Fastening device according to any one of claims 10 to 16, the retaining device of the "step in" type comprises locking means provided with a lock (7) kept articulated on a pivot (34) arranged in so that the housing (9) of said latch (7) intended to cooperate with an anchoring means (101) approaches or moves away from said anchoring means according to the angular position of said latch, characterized in that said latch (7) is kept locked in the engaged position of the shoe, by a removable stop member (35), such that the anchoring means (101) is trapped in the housing (9). said removable stop member (35) being on the one hand, returned to a stable position for blocking the lock (7) by at least one or- elastic gane (36), and on the other hand, driven by the action of the slide (48) or the lifter (39) when the fastening member (2, 3) is released, towards an open position which allows movement of the lock 7 so that the anchoring means (101) escape from their housing (9) releasing the boot from the binding.