EP2030658A1 - Climbing bar and ascender device for snow shoe - Google Patents

Abstract

The device has a base (5) integrated to a webbing of a snowshoe and supporting a front pivoting axle (7) and a rear pivoting axle (9). A locking and unlocking element (8) is mounted against a rear return spring (11) i.e. rear torsion spring, in a pivot manner around the rear pivoting axle. A front torsion spring (10) rotates a rotating support element (6) towards front to bring the support element from a disengaged position to an engaged position. The rear return spring brings back the locking and unlocking element from an unlocking position to a locking position.

Description

Technical Field of the Invention

The invention relates to a device that can be used as a climbing wedge or as a blocker for a snowshoe binding comprising an articulated plate. The hold and hold device is a height-setting member and blocking tilting of the hinged mounting plate of a snowshoe.

State of the art

In the field of snowshoeing, there are multiple devices designed to make it less difficult to walk uphill when the slope is strong by interposing a shim, commonly referred to as the "climbing wedge", between the hinged plate of the binding and the upper face of the sieve of the racket. This climbing wedge then serves as a booster and it allows to climb a slope of face by limiting the effort at the calves of the walker.

These same devices of the prior art are generally designed to serve as a blocker, ensuring the immobilization of the attachment plate against the sieve of the racket. The sieve then follows all the movements of the snowshoer's foot for better control of the snowshoe in difficult passages, such as crossing streams or steep embankments.

There are various types of devices as described above which are for some maneuverable by hand and for others maneuverable directly using the tip of the stick such as in particular the device described in the patent application. FR 2880547 which uses a slidably actuated element, against biasing means, by two rods hinged together to form a toggle joint. This device does not offer however, a restricted axial stroke due to the necessarily limited dimensions of said rods which, in a climbing wedge position, does not provide a fulcrum sufficiently advanced to prevent the plate of the fastener from escaping. its support during its flexion. Another problem lies in the fact that the sliding guide requires a relatively precise adjustment of the parts between them and this adjustment makes the operation particularly sensitive to frost and infiltration of snow which are all the more difficult to counteract that the device can not to be little waterproof by construction itself.

Object of the invention

To overcome these drawbacks, the object of the invention is to provide a hold device for climbing and blocking for snowshoeing, providing, in climbing wedge position, a fulcrum located sufficiently far forward to guarantee a support sure of the mounting plate while also offering the smallest possible footprint and a very good seal against the penetration of snow. This device is also operable with ease using the tip of the stick to quickly move from a disengaged position in which it has no function, to an engaged position in which it can be used as a climbing wedge or as blocker.

Prior to the following descriptions, it is stated that the notions of forward and backward direction are determined by reference to the usual direction of the raquettiste while the notions of horizontality and verticality are determined with reference to a racket according to the invention resting on a horizontal floor.

This agreed to achieve the various objectives mentioned above, the device according to the invention is characterized in that it comprises firstly a support member mounted to tilt relative to the screen, about a substantially horizontal axis, to the Against biasing means and in that it comprises on the other hand hooking means for selectively maintaining said rocking element in its disengaged position and thus tilted backwards out of the area swept by the plate of the binding. or to release it in rotation so that it can tilt forward to come to occupy either its engaged position climbing wedge or its engaged position in blocker.

According to another feature, the device according to the invention for ensuring the height adjustment and the rotational locking of the hinged mounting plate of the snowshoe is disposed in part at least between the rear end of said plate of pivoting attachment, and the rear end of the sieve.

• un socle solidaire du tamis de la raquette ledit socle supportant un axe avant et un axe arrière de pivotement disposés sensiblement parallèlement l'un par rapport à l'autre et sensiblement horizontalement par rapport au tamis de la raquette ,
• un élément monté pivotant à l'encontre de moyens de rappel autour de l'axe de pivotement avant supporté par le socle susmentionné, ledit élément basculant d'appui , qui comporte au moins un bras d'actionnement s'étendant vers l'arrière , pouvant occuper soit une position désengagée dans laquelle il est basculé vers l'arrière , et il se situe alors en dehors de la zone balayée par la plaque pivotante de la fixation, soit une première position engagée en bloqueur soit une seconde position engagée en cale de montée ,
• un élément de verrouillage et déverrouillage monté pivotant à l'encontre de moyens de rappel autour de l'axe de pivotement arrière supporté par le socle susmentionné ledit élément de verrouillage et déverrouillage comportant d'une part un levier de commande s'étendant vers l'arrière et d'autre part des moyens d'accrochage permettant sélectivement de maintenir l'élément basculant d'appui dans sa position désengagée donc basculée vers l'arrière ou de le libérer en rotation pour que, sous l'action des moyens de rappel auxquels celui-ci est associé, il puisse basculer vers l'avant pour venir occuper soit sa position engagée en bloqueur soit sa position engagée en cale de montée.
• des moyens de rappel tendant à faire basculer vers l'avant l'élément basculant d'appui pour l'amener de sa position désengagée vers ses positions engagées ,
• des moyens de rappel tendant à ramener l'élément de verrouillage - déverrouillage de la position déverrouillée à la position dans laquelle il assure le verrouillage de l'élément basculant dans sa position basculée vers l'arrière donc désengagée.

According to another characteristic, the device according to the invention is equipped with control means for the passage from an inactive position, disengaged, to two active, engaged positions, and vice versa, and it comprises:

• a base integral with the sieve of the racket, said base supporting a front axle and a rear pivoting axis arranged substantially parallel to each other and substantially horizontally relative to the sieve of the racket,
• a member pivotally mounted against biasing means about the front pivot axis supported by said base, said rocking fulcrum member having at least one rearwardly extending actuating arm, which can occupy either a disengaged position in which it is tilted backwards, and it is then outside the area swept by the pivoting plate of the binding, either a first position engaged as a blocker or a second position engaged in the hold of climb ,
• a locking and unlocking member pivotally mounted against biasing means about the rear pivot axis supported by the abovementioned base, said locking and unlocking element comprising on the one hand a control lever extending towards the rear and secondly hooking means selectively to maintain the tilting support member in its disengaged position so tilted backwards or release in rotation so that, under the action of the return means to which this one is associated, it can tilt forward to come occupy either its engaged position in blocker is its position engaged in climbing wedge.
• biasing means tending to tilt the tilting support element forward to bring it from its disengaged position to its engaged positions,
• return means tending to return the locking element - unlocking the unlocked position to the position in which it ensures the locking of the tilting element in its rearward tilted position thus disengaged.

• soit une position désengagée dans laquelle il est basculé vers l'arrière dans sa position de basculement extrême vers l'arrière et il se situe alors en dehors de la zone balayée par la plaque pivotante de la fixation .
• soit une première position engagée , qu'il atteint après un basculement vers l'avant de valeur angulaire α ( Alpha ) par rapport à la position désengagée susmentionnée . Dans cette position intermédiaire de basculement vers l'avant, correspondant à la position engagée en bloqueur, l'élément basculant d'appui exerce, soit directement soit par l'intermédiaire d'un doigt mobile, un appui sur la face supérieure de l'extrémité arrière de la plaque de fixation en la maintenant ainsi plaquée contre la face supérieure du tamis et en s'opposant ainsi à tout mouvement de rotation de ladite plaque de fixation autour de son axe de pivotement
• soit une seconde position engagée en cale de montée qu'il atteint après un basculement vers l'avant de valeur angulaire β ( béta ) par rapport à la position désengagée. Dans cette position extrême de basculement vers l'avant, correspondant à la position engagée en cale de montée l'extrémité supérieure avant dudit élément basculant d'appui est engagée sous l'extrémité postérieure de la plaque de fixation pour servir de rehausseur en limitant la rotation vers le bas de ladite plaque .

The tilting support element of the device according to the invention can therefore occupy three characteristic positions

• a disengaged position in which it is tilted backwards in its extreme tilting position towards the rear and is then outside the area swept by the pivoting plate of the attachment.
• or a first engaged position, it reaches after a forward tilting of α (Alpha) angular value relative to the aforementioned disengaged position. In this intermediate position of tilting forward, corresponding to the engaged position blocker, the tilting support member exerts, either directly or via a movable finger, a support on the upper face of the rear end of the fixing plate and maintaining it pressed against the upper face of the screen and thus opposing any rotational movement of said fixing plate about its pivot axis
• or a second position engaged climbing wedge it reaches after a tilting forward angular value β (beta) relative to the disengaged position. In this extreme forward tilting position, corresponding to the position engaged in the upward wedge, the upper front end of said tilting support member is engaged under the rear end of the attachment plate to serve as a booster by limiting the downward rotation of said plate.

According to another characteristic, the horizontal pivot axis about which rotates the support rocking element is immobile relative to the screen.

According to an important characteristic, with respect to the disengaged position, the angular value of forward tilting α (Alpha) corresponding to the position engaged as a blocker of the tilting support element, is advantageously between 10 ° (ten degrees ) and 45 ° (forty five degrees) while the angular value β (beta), corresponding to the position engaged in climbing wedge of the rocking element is advantageously between 40 ° (forty degrees) and 80 ° ( eighty degrees) preferably between 45 ° (forty five degrees) and 75 ° (seventy-five degrees) from the disengaged position.

According to another characteristic, the angle of angular displacement α (Alpha) that the tilting support element traverses between its disengaged position and its engaged position as a blocker is advantageously less than 45 ° (forty five degrees), preferably less than at 40 ° (forty degrees) and in particular less than 35 ° (thirty five degrees).

According to another characteristic, the angular deflection angle β (beta) that the tilting support element traverses between its disengaged position and its engaged position as a climbing wedge is advantageously less than 90 ° (ninety degrees). preferably less than 80 ° (eighty degrees) and in particular less than 75 ° (seventy-five degrees).

According to another characteristic, the rocking support member comprises at least one actuating arm extending rearwardly beyond the vertical passing through the horizontal axis about which pivots said rocking support member relative to the base of the device and this arm has in its upper face at least one cavity open upwards to receive the tip of the stick whose support downward causes the rearward tilting of said rocking support member to bring it of one of his two positions engaged to his disengaged position.

According to another characteristic, the device wedge rise-blocker according to the invention comprises means for hooking and retaining in rotation of the rocker constituted by at least one hooking lug coming to hook on a notch form and adequate position on the tilting support element. The escapement of the locking lug of the blocker retaining catch is controlled by an unlocking lever pivotally mounted relative to the sieve around a horizontal axis positioned behind the pivot axis of the tilting element. support. This unlocking lever comprises in its upper face at least one cavity for receiving the tip of the stick whose support causes the rearward tilting of the unlocking lever resulting at the same time the escapement of the hooking lug and the tilting forward of the rocking support member under the action of the return means.

According to a first embodiment, the rocking support element comprises a single actuating arm arranged symmetrically with respect to the longitudinal plane of symmetry of the device and in the upper face of the central arm is arranged a receiving cavity for the tip of the stick, the longitudinal axis of this cavity then being advantageously disposed in the longitudinal plane of symmetry of the device. In this configuration, the locking-unlocking element advantageously comprises two actuating arms located on either side of the central actuating arm of the tilting support element, each of the two actuating arms of the locking-unlocking element having in its upper face a cavity intended to receive the tip of the stick, the downward support of which causes the tilting element to tilt forward towards the front under the action of the force developed by the recall means associated with it.

According to a second embodiment, the rocking support element comprises two actuating arms arranged on either side of the central actuating arm of the locking-unlocking element and each of these two actuating arms. has in its upper face a receiving cavity for the tip of the stick whose downward support causes the release in tilting forwards of the tilting support member under the action of the force developed by the means of recall . The central actuating arm of the locking-unlocking element is arranged symmetrically with respect to the longitudinal plane of symmetry of the device and in the upper face of this central arm is arranged a receiving cavity for the tip of the stick, the axis longitudinal of this cavity being advantageously disposed in the longitudinal plane of symmetry of said device according to the invention.

According to a third embodiment, the tilting support element and the locking-unlocking element each comprise a single actuating lever, the two actuating levers being arranged one on one side and the other on the other side of the plane Ps longitudinal vertical general symmetry of the racket.

To visually differentiate the engagement and release functions of the device according to the invention, the actuating levers or levers that comprises the tilting support element may advantageously be of a different color from that of the lever or levers of actuation of the locking element - unlocking.

According to a first embodiment, in the blocking position, the immobilization of the plate of the fastening is ensured directly by the rocking support element whose part front lower, advantageously configured is directly press on the upper face of said fixing plate.

According to another feature of a preferred embodiment, the rocking support member supports an upper axis disposed substantially horizontally and pivoting itself, integrally with said rocking support member in which it is mounted, around the lower axis connecting said tilting support element to the base of the attachment. Around this upper axis is pivotally mounted a movable finger whose lower front end can pass from a disengaged position, wherein it is partially at least retracted inside the tilting support member being then located rearward of the zone swept by the fixing plate, to an engaged position in which it is in prominence with respect to the front face of the tilting support element and it is then partly at least in the zone swept by the fixing plate.
When the device according to the invention is engaged in the blocking position, the lower front face of said movable finger rests on the upper face of the fixing plate to immobilize it in rotation relative to the sieve of the racket. .
When the device according to the invention is engaged in the climbing wedge position, the lower front face of the movable finger rests on the upper face of the screen to ensure a firm and solid support of the tilting support element, thereby transmitting directly by sieving most of the bearing forces exerted by the fixing plate on the support element.

According to another characteristic, the movable finger comprises an actuating tab consisting of an extension extending advantageously upwardly and rearwardly beyond the axis about which pivots said finger. When pivoting backwards, and thus towards its disengaged position, the tilting support member, this actuating tab of the movable finger is brought into contact with the corresponding bearing face arranged in the element constituting the base of the fixing and continuing tilting back of the tilting support member then causes the return of the movable finger in the retracted position inside the tilting support element against the return force developed by a spring tending to return said finger in its active position so prominent.

According to another important characteristic, when the tilting support element is brought into the locked position, the lower base of the movable finger is positioned above the upper face of the rear end of the attachment plate and any effort upwardly exerted by said fixing plate against the underside of the movable finger causes the rearward rotation of the rocking support member and thereby causes the actuating lug of the pivoting finger bearing against the corresponding face of the base of the attachment which results in the immobilization in rotation of said finger which thus opposes the further tilting back of the tilting support member under the action of the upward force transmitted by the rear of the plate trying to lift during the march.
The system is thus self-locked in the locked position of the plate. Such self-locking proves particularly significant compared to the simplified version of the device according to the invention does not include a pivoting finger and whose tilting support element pressing directly on the plate of the fastener may risk being pushed back into position. tilting backward by the upward force transmitted from the rear of the plate attempting to lift during walking by causing the plate to escape from its locked position against the sieve. Conversely, it may also be considered that this risk of inadvertent escape of the plate from its locked position is also a security in that the mounting plate can thus be released in normal rotation when a traction force too violent is exerted at the back of the shoe, during a fall for example or when the raquettiste is caught in an avalanche

According to another characteristic, the movable finger in rotation as defined above allows the device according to the invention to perform its blocking and climbing wedge functions thanks to angular deflections of the tilting element much smaller than those which are necessary to perform these same functions using the device according to the invention in its version not comprising a movable finger.

According to another feature and according to a first embodiment, the wedge device comprises a single spring, consisting of a torsion spring or a spring made using a flexible blade or a bent wire, the rotational force transmitted by one of the two branches of said spring ensuring the return to the raised position, thus engaged, of the locking lever-unlocking while the rotational force transmitted by the second leg of the spring ensures the return in tilting forward of the rocking support member to bring it into its engaged position blocker or climbing wedge.

According to a preferred embodiment, the abovementioned return means consist of a single torsion spring, the helical portion of which is arranged concentrically around the axis of pivoting of the tilting support element.

According to another characteristic when the device according to the invention comprises a pivoting support finger it can be advantageously equipped with a single spring, one of the two branches ensures the return to the raised position, thus engaged, unlocking lever unlocking while the second leg of the spring ensures the return to the extended position, so prominent, of the pivoting finger thus ensuring by repercussion the return tilting forward of the tilting support element to bring it into its engaged position. blocker or climb wedge.

This design using a single spring is of course very interesting in terms of cost, but also in terms of weight gain and the ease of assembly of wedge mount device.

According to another characteristic, the device according to the invention comprises a damping device for damping the shock of sudden impact of the rocking element against its end-of-stroke angular stop when the means of immobilization in pivoting of said rocking element are released and that it is suddenly driven forward tilting under the action of the forces developed by the biasing means bringing it to climbing wedge position.
This angular end damper may advantageously consist of a pad made of an elastically deformable flexible material such as a natural or synthetic rubber interposed between the abutment faces of the tilting bearing element and the corresponding abutment faces arranged in the base of the device.

According to another characteristic, the upper face of the tilting support element advantageously comprises a damping pad made of an elastically deformable flexible material such as a natural or synthetic rubber intended to damp the impact noise of the fixing plate when it comes to rest on the upper cover of the tilting support member engaged wedge mount position.

According to another characteristic, to prevent the rear end of the fixing plate from escaping on the side of the support tilting element when the device is used in climbing wedge position, the upper face of said support tilting element advantageously comprises a receiving cavity, of complementary shape to that of the corresponding part of the fixing plate, said cavity being of sufficient depth and comprising if necessary side to ensure proper lateral stalling of the rear end of the mounting plate.

According to another feature of a particular embodiment, the device according to the invention comprises a cavity, of appropriate size to that of the rear part of the fixing plate, arranged in the upper face of the tilting support element. and this cavity comprises a wall coming to bear against the rear end of the plate of the fastener when the device is engaged in climbing wedge position.

According to another feature of a particular embodiment, the snowshoe on which is mounted the device according to the invention comprises a sieve whose central portion is connected to the peripheral frame of the sieve by means allowing its inclination in the transverse direction racquet on both sides of a neutral position in which said central area of the sieve is automatically returned by return means. The device according to the invention secured to the central zone of the sieve swinging oscillating then accompanies the movements of lateral inclination of said sieve relative to the care of the racket.

According to another characteristic of a particular embodiment, the racket, on which is mounted the hold-up device according to the invention, comprises a device storing energy at the end of the stride to restore it when the next stride.
According to one embodiment, this energy storage device consists of an elastically deformable element such as a mechanical spring, pneumatic or such that a stop made of an elastically deformable material and this element is interposed between the underside of the fixing plate and the upper face of the sieve between which it is gripped by being compressed and thus accumulating energy by compression during the return of the plate to its folded position against the upper face of the screen for to be able to restore this energy in the form of a trigger when, during the next stride, the rear of the fixing plate moves away from the sieve.
According to a preferred embodiment, this device storing and then returning energy can be selectively activated or deactivated and according to a particular mode of realization, said device is automatically brought into the active position when the wedge-up device according to the invention is engaged in the upshift position and the disengagement of the upshift position automatically causes the simultaneous disengagement of the device storing energy which then becomes inactive again.

Description of the drawings

• La figure 1 est une vue d'ensemble en coupe selon le plan de symétrie longitudinal général Ps de la raquette montrant schématiquement une raquette à neige sur laquelle est monté un dispositif de cale de montée et bloqueur selon l'invention,
• La figure 2 est une vue en coupe longitudinale selon le plan de symétrie Ps d'un premier mode de réalisation du dispositif de cale de montée et bloqueur selon l'invention, montrant ledit dispositif dans sa position désengagée.
• La figure 3 est une vue en coupe longitudinale selon le plan de symétrie Ps du dispositif représenté sur la figure 2 et qui est ici montré dans sa position engagée en bloqueur.
• La figure 4 est une vue en coupe longitudinale selon le plan de symétrie Ps du dispositif de la figure 2, qui est ici montré dans sa position engagée en cale de montée.
• La figure 5 est une vue en coupe longitudinale selon le plan de symétrie Ps montrant un deuxième mode de réalisation du dispositif selon l'invention ici représenté dans sa position désengagée.
• La figure 6 est une vue en coupe longitudinale selon le plan de symétrie Ps de la figure 5, et montré dans une position intermédiaire entre sa position désengagée et sa position engagée en bloqueur,
• La figure 7 est une vue en coupe longitudinale selon le plan de symétrie Ps du dispositif de la figure 5 qui est ici montré dans sa position engagée en bloqueur,
• La figure 8 est une vue en coupe longitudinale selon le plan de symétrie Ps de la figure 5 qui est ici montré dans sa position engagée en cale de montée,
• La figure 9 est une vue de dessus montrant le dispositif selon l'invention dans sa position désengagée,
• La figure 10 est une vue de coté montrant le dispositif selon l'invention dans sa position désengagée.

Other advantages and features will emerge more clearly from the following description of the various embodiments shown by way of nonlimiting examples and represented in the appended drawings in which:

• The figure 1 is an overall view in section along the general longitudinal plane of symmetry Ps of the racket schematically showing a snowshoe on which is mounted a wedge device of ascending and blocking according to the invention,
• The figure 2 is a longitudinal sectional view along the plane of symmetry Ps of a first embodiment of the wedge device blocker according to the invention, showing said device in its disengaged position.
• The figure 3 is a longitudinal sectional view along the plane of symmetry Ps of the device shown in FIG. figure 2 and which is here shown in its engaged position as a blocker.
• The figure 4 is a longitudinal sectional view along the plane of symmetry Ps of the device of the figure 2 , which is here shown in its engaged position in climbing wedge.
• The figure 5 is a longitudinal sectional view along the plane of symmetry Ps showing a second embodiment of the device according to the invention here shown in its disengaged position.
• The figure 6 is a longitudinal sectional view along the plane of symmetry Ps of the figure 5 , and shown in an intermediate position between its disengaged position and its engaged position as a blocker,
• The figure 7 is a longitudinal sectional view along the plane of symmetry Ps of the device of the figure 5 which is here shown in its engaged position as a blocker,
• The figure 8 is a longitudinal sectional view along the plane of symmetry Ps of the figure 5 which is here shown in its engaged position in slipway,
• The figure 9 is a view from above showing the device according to the invention in its disengaged position,
• The figure 10 is a side view showing the device according to the invention in its disengaged position.

Detailed description of two embodiments

On the figure 1 the hold and hold device 1 occupies its inactive position thus disengaged in such a way that the rear end of the support plate 2 supporting the boot is free and that it can therefore pivot over all its usual angular movement around its axis 3 which connects to the sieve 4 of the snowshoe.

• un élément fixe 5 constituant le socle du dispositif qui est solidarisé de façon rigide au tamis 4 de la raquette ,
• un élément basculant d'appui 6 monté pivotant par rapport au socle 5 autour d'un axe 7 disposé perpendiculairement au plan longitudinal de symétrie générale Ps,
• un élément de verrouillage 8 monté pivotant par rapport au socle 5 autour d'un axe 9 disposé perpendiculairement au plan Ps et positionné plus en arrière , donc plus près de l'extrémité arrière de la raquette, par rapport à l'axe 7 de pivotement de l'élément basculant d'appui 6 ,
• un ressort avant 10, du type ressort de torsion, monté autour de l'axe avant 7 assurant le rappel automatique de l'élément basculant d'appui 6 dans la position engagée en cale de montée ou en bloqueur
• un ressort de rappel arrière 11, du type ressort de torsion, monté autour de l'axe arrière 9 , assurant le rappel automatique et le maintien de l'élément de verrouillage 8 dans sa position verrouillée.

The figures 2 , 3 and 4 shows a first simplified embodiment of wedge-blocker device 1 according to the invention, wherein said device comprises:

• a fixed element 5 constituting the base of the device which is rigidly secured to the sieve 4 of the racket,
• a rocking support member 6 pivotally mounted relative to the base 5 about an axis 7 disposed perpendicularly to the longitudinal plane of general symmetry Ps,
• a locking member 8 pivotally mounted relative to the base 5 about an axis 9 disposed perpendicularly to the plane Ps and positioned further back, so closer to the rear end of the racket, with respect to the axis 7 of pivoting of the tilting support element 6,
• a front spring 10, of the torsion spring type, mounted around the front axle 7 ensuring the automatic return of the tilting support element 6 in the engaged position wedge climb or blocker
• a rear spring 11, of the torsion spring type, mounted around the rear axle 9, ensuring the automatic return and the holding of the locking element 8 in its locked position.

The device 1 thus comprises two axes arranged substantially horizontally and parallel to one another, a front axle 7 and a rear axle 9, both of which remain fixed relative to the sieve 4 of the racket and whose position does not change, whether the device is disengaged or engaged in blocker or climb wedge.
The tilting support element 6 comprises a hooking device consisting of a lug 63 collaborating with a hook 81 of complementary shape arranged in the locking element 8. The tilting support element 6 comprises an arm 61 extending rearwardly in the upper face of which is arranged a bowl 610 for receiving the tip of the stick.
As shown on the figure 2 a support force F1 exerted using the tip of the stick in the bowl 610 provides the rearward tilting along R1 of the rocking support element 6 around the front axle 7 against the restoring force developed by the spring 10 until the locking pin 63 comes to be housed in the hook 81 of the unlocking lever 8 which is kept tilted forwards under the force developed by the rear spring 11. Therefore the device 1 occupies its disengaged position and the front end of the tilting support element 6 arranged in spoiler 62 is located behind the area swept by the rear end 20 of the fixing plate 2 with which it does not interfere.

As shown in figure 3 , a support force F2 exerted using the tip of the stick in the bowl 82 arranged in the upper rear portion of the release lever 8 causes the release of the lug 63 of the hook 81 and under the action of the force developed by the front spring 10, the rocking support member 6 pivots forward about its axis 7 along R2 until the spoiler 62 bears on the upper face of the rear end 20 of the fixing plate 2 which is thus kept pressed against the upper face of the screen, the device according to the invention then occupying its blocking position.

The figure 4 shows the device according to the invention 1 in the wedge position it reaches when the front spoiler 62 abuts against the upper face of the sieve 4. The rear end 20 of the fixing plate 2 then comes to rest in a concavity 600 of adapted shape arranged in the front part of the upper face of the tilting support element 6.
As can be seen from the figures 2 , 3 and 4 the upper cover 50 of the base 5 is advantageously curvilinear convex whose center is constituted by the axis 7 and the tilting support element 6 has it a wall 64 concave curvilinear shape whose center is constituted by the axis 7 and the two curvilinear and concentric walls 50 and 64 are located as close as possible to each other to prevent penetration of water, snow or pebbles inside the device 1.

The figures 5 , 6 , 7 and 8 , show a second embodiment which differs from the previous embodiment in that it comprises a movable finger 12 hinged about an axis 121 relative to to the tilting support element 14. The rocking support member 14 and the movable finger 12 which it supports the axis 121 are articulated relative to the base 13 about a front axis 18 against the restoring forces developed by a spring 19 tending on the one hand to tilt the tilting element 14 forward and on the other hand to pivot the movable finger 12 about its axis 121 to bring the front lower end 123 of said finger protruding from the front face of the tilting element 14.

The figure 5 shows the device 1 in its disengaged position reached at the end of angular stroke when a support F3 is exerted in the cavity 144 located in the vicinity of the rear end of the arm extending rearwardly the support element tilting 14. This force F3 causes the rearward pivoting along R3 of the assembly formed by the tilting support element 14 and the movable finger 12 and, as soon as the actuating arm 122 of said movable finger 12 comes into contact with the corresponding support face 131 of the base 13, said movable finger 12 begins to perform its retraction movement inside the base 13 by rotating about its axis 121 in the direction AR3 opposite to that in which continues to pivot the tilting support member 14 to reach its disengaged position. At the end of the return angular stroke, the movable finger 12 is partially at least retracted inside the body of the base 13 and the rocking support element 14 is sufficiently tilted rearwardly so that its lug 142 comes into position. hook to the retaining hook 151 secured to the lock-unlocking lever 15 as shown in FIG. figure 5 .

The release of the tilting element 14 bringing the device 1 into a wedge position or blocker is done in two stages according to a principle of two successive detents as illustrated by FIGS. figures 6 and 7 to benefit from a shock effect that can trigger the output of the movable finger 12 in the case where it would have been locked in its retracted position and to ensure that the lower end 123 of said finger 12 will be sufficiently output to be able to come to bear on the rear end 20 of the plate when the device is used as a blocker, as shown on the figure 7 , or on the upper face of the sieve 4 when the device is used as a climbing wedge, as shown in FIG. figure 8 .
To do this, as shown in figure 6 a support according to F4 exerted using the hand or the tip of the stick on the release lever 15 causes the escape of the hooking lug 142 of the retaining hook 151 which results in the sudden release tilting forward according to R4 of the tilting support element 14 and the movable finger 12 supported by it. The tilting of the tilting support element 14 and the moving finger 12 is abruptly halted in its movement by the attachment of a transverse blade 141, integral with said tilting support element 14, which is housed in a hook 152 of suitable shape secured to the unlocking lever 15. It is therefore easy to understand that in the event that the movable finger 12 has hitherto been accidentally blocked in its retracted position the combined effect of the impact shock due to the abrupt stop described above to which is added the force the front spring 19 which continues to exert a thrust forwards on the lower part of said movable finger 12 will immediately cause it to pivot about its axis 121 to bring it to the extended position by rotation in the sense direction AR4 opposite direction R4 in which pivots the tilting support element 14 to go from its disengaged position to its engaged position blocker or climbing wedge.
The second phase of the rotationally forward release of the tilting support element 14 is represented on the figure 7 ; it occurs when the raquettiste stops pressing the unlocking lever 15 and that it, under the action of the restoring force developed by the rear spring 17, rebasculates forwards thereby causing the escape of the bar 141 of the hook 152 which held it. Therefore, the assembly consisting of the tilting support element 14 and the movable finger 12 can resume its forward tilting movement along R5 by pivoting about the axis 18 under the thrust of the spring 19 and this up to that the lower front end 123 of the movable finger 12 comes to rest on the upper face of the rear end 20 of the fixing plate 2 to act as a blocker by holding said fixing plate 2 pressed against the upper face of the sieve 4 of the snowshoe, as shown on the figure 7 .

It can thus be said that the device 1 according to the invention comprises two hooking devices selectively releasable successively one after the other during the angular stroke bringing the tilting support member from its disengaged position to one of its two positions engaged in blocker or climbing wedge. The first device consisting of the lug 142 and the hook 151 makes it possible to immobilize the tilting support element 14 in its fully disengaged position, while the second device consisting of the transverse blade 141 and the hook 152 makes it possible to immobilizing the tilting support element 14 in an intermediate position between its fully disengaged position and its engaged position as a blocker.

The first attachment device consisting of the elements 142 and 151 is released when a force exerted on the locking-unlocking lever causes the latter to rotate. against the restoring forces developed by the means 17 tending to recall it in the position it occupies when the tilting support member 14 occupies its disengaged position while the second attachment device is released when the force of aforesaid support ceases to be applied and the locking lever-unlocking is recalled to its upper position by the return means associated with it.

As these figures 6 and 7 when the device (1) occupies its locked position, any force directed from the bottom upwards exerted against the front lower face (123) of the movable finger (12) by the plate of the binding (20) firstly leads to the tilting member assembly (14) and movable finger (12) tilting back towards the disengaged position of the device (1) until the actuating arm (122) of the movable finger (12) in contact with the corresponding bearing surface (131) of the base (5) and then opposes the continuation of the disengagement movement of the device (1) which it thus ensures the locking in the blocking position by opposing the release in rotation of the plate (2) around its axis of rotation (3).

It can also be said that when the device 1 according to the invention is observed in the position in which it is drawn in the figures in side view 5, 6, 7, and 8, in which the front end of the racket is located left side, as soon as the actuating arm 122 of the movable finger 12 comes into contact with the corresponding bearing surface 131 of the base 5 any force tending to rotate the movable finger 12 about its axis 121 in the clockwise direction AR4 this results in the counterclockwise rotation drive R4 of the tilting support element 14.

The figure 8 shows the device in its climbing wedge configuration that it reaches when the rear 20 of the attachment plate is sufficiently far from the sieve of the racket to allow the lower end of the movable finger 12 to bear against the upper face of the sieve 4 of the racket. The rear end 20 of the fixing plate 2 can then come to rest in the bowl 143 arranged in the front part of the upper face of the tilting support element 14, which bowl 143 is sufficiently deep and has lateral lifts. sufficient to ensure the refocusing and the lateral setting of the end 20 of the fixing plate during crossings in tilt performed with the device according to the invention engaged in the blocking position.

The figure 9 shows in plan view a preferred configuration of the device according to the invention in which the rocking support member 14 comprises a single arm actuator disposed symmetrically with respect to the longitudinal plane of symmetry Ps of the device. In the front part of the upper face of the tilting support element 14 is provided a bowl 143 intended to ensure the wedging of the rear part 20 of the fixing plate 2 when the device 1 is used as a climbing wedge while in the vicinity of the rear end of the actuating arm of the tilting support member 14 is arranged a receiving cavity 144 in which is wedged the tip of the baton of the racket when it wishes to bring the device into position. disengaged position. In the configuration shown on this figure 9 , the locking-unlocking element 15 comprises two actuating arms located on either side of the central actuating arm of the rocking support element 14, each of the two actuating arms of the element of locking-unlocking 15 having in its upper face and in the vicinity of its rear end a cavity 153 and 154 for receiving the tip of the stick whose support downward causes the release and therefore the engagement of the device in the blocking position or wedge of mounted by tilting forward of the tilting element 14 support under the action of the force developed by the return means associated therewith.

The figure 10 is a side view of the device according to the invention shown in figures 6 , 7 , 8 ,and 9 .

As shown by figures 2 , 5 , and 10 when the device according to the invention occupies its disengaged position, the rear ends of the unlocking lever 15 are advantageously further from the upper face of the sieve of the racket than is the rear end of the lever extending rearwardly. the tilting support element 14 and for the purpose of facilitating the identification of the levers which must be actuated to cause the passage of the disengaged position of the device to the engaged position blocker or to the position engaged in climbing wedge.
Conversely, when the device is engaged in the blocking position or climbing position, as shown on the figures 3 , 4 , 7 and 8 it is the actuating lever secured to the tilting support member 14 which is found in the upper position relative to the actuating arm of the unlocking lever to, again, facilitate the identification by the user of the lever on which must be done to bring the device back to its disengaged position.
We can therefore say that the lever (s) whose (the) receiving cavity (s) of the tip of the stick is (are) the (the) highest (s) is (are) the (the) lever (s) on which he must act to trigger a change in the situation of the device from the disengaged position to one or the other of the two positions engaged and vice versa.

It should also be noted that the movements of the movable finger 12 are carried out according to a path combining rotational movements with respect to the base 13 of the device according to the invention, therefore consequently also with respect to the sieve 4 of the racket , about two different axes that are the axes 121 and 18, the pivot axis 121 of said movable finger 12 pivoting itself about the axis 18 at the same time as the rocking support member 14 to which it is connected via said articulation axis 121.

According to another embodiment not shown, the base of the blocking device - wedge of climb according to the invention constitutes with the sieve of the racket a monolithic assembly said base being directly integrated in the sieve of the racket and molded at the same time as him and this for significant benefits in terms of strength, aesthetics, lightness and economy thanks to a faster assembly, only the moving parts constituting the rest of the device according to the invention being reported and connected to said base by the axes of pivoting above described.

It is clear that the invention is not limited to the embodiments described in the above text, but it also includes all their technical equivalents as well as their combinations.

Claims (10)

Device (1) for setting in height and locking in rotation of a fixing plate (2) articulated on a snowshoe, said device being arranged in part at least between the rear end (20) of the fixing plate pivoting and the rear end of the screen and being equipped with control means for the passage of an inactive position, disengaged, two active positions, engaged, and vice versa,
characterized in that it comprises: - a base (5,13) integral with the sieve (4) of the racket said base supporting a front axle (7,18) and a rear pivoting shaft (9,16) arranged substantially parallel to one with respect to the other and substantially horizontally with respect to the sieve of the racket, a pivoting support member (6, 14) pivotally mounted against return means (10, 18) about the front pivot axis supported by the abovementioned base, said tilting support element (6, 14), which comprises at least one rearwardly extending actuating arm, which can occupy either a disengaged position in which it is tilted backwards, and is then outside the area swept by the plate pivoting of the fastener, that is to say a first position engaged in blocker, that it reaches after a forward tilting, of angular value α (Alpha) with respect to the disengaged position, in which it exerts, either directly or by the intermediate a movable finger (12), pressing on the upper face of the rear end (20) of the fixing plate, thereby keeping it pressed against the upper face of the sieve (4), ie a second position engaged in climb wedge he reaches after a switch to the front, of angular value β (beta) relative to the disengaged position, wherein the upper front end of said fulcrum support member (6,14) is engaged under the rear end of the attachment plate to serve booster by limiting the downward rotation of said plate (2). - a locking and unlocking element (8, 15) pivotally mounted against return means (11, 17) around the rear pivot axis (9, 16) supported by the abovementioned base (5, 13). said locking and unlocking element comprising on the one hand a control lever extending rearwardly and on the other hand hooking means (81,151) collaborating with complementary means (63,142) integral with the tilting support element (6,14). ) to selectively allow said support tilting element to be in its disengaged position, thus tilted backwards or to release it in rotation so that, under the action of the return means (10, 19) associated with it, it can tilt forward to come to occupy either its engaged position in blocker is its position engaged in climbing wedge. first return means (10, 19) tending to tilt the tilting support element (6, 14) forward to bring it from its disengaged position to its engaged positions, second return means (11, 17) tending to return the unlocking locking element (8, 15) from the unlocked position to the position in which it ensures the locking of the tilting element (6, 14) in position disengaged. Device (1) for setting in height and locking in rotation of a fixing plate (2) articulated on a snowshoe, according to claim 1 characterized in that , when it occupies its engaged position as a blocker, the lower front part of the tilting support element (62) bears directly on the upper face of the rear part (20) of the fixing plate and in that when it occupies its engaged position as a climbing wedge , the lower front portion of the tilting support member (62) bears directly on the upper face of the sieve (4) of the racket. Device (1) for setting in height and locking in rotation of a fixing plate (2) articulated on a snowshoe, according to claim 1 characterized in that it comprises a finger (12) mounted articulated around a horizontal axis (121) supported by the tilting support element (14) and on the one hand when the device (1) is engaged in the blocking position, the lower front end (123) of said finger (12). bears on the upper face of the fixing plate (2) and, on the other hand, when the device (1) is engaged in the upset position, the lower front end (123) of the said finger (12) comes into abutment on the upper face of the sieve (4) of the racket. Device (1) for setting in height and locking in rotation of a fixing plate (2) articulated on a snowshoe, according to claim 3 characterized in that it comprises a movable finger (12) pivotally mounted relative to to the tilting support element (14) about an axis (121) and that when the device (1) occupies its locked position, any force directed from the bottom upwards exerted against the front lower face ( 123) of the movable finger (12) by the plate of the fastener (20) firstly drives the rocking element (14) and movable finger (12) in a rearward pivoting towards the disengaged position of the device (1) until the actuating arm (122) of the movable finger (12) comes into contact with the corresponding bearing surface (131) of the base (5) and then opposes the continuation of the movement disengaging the device (1) which thus ensures locking in the blocking position by opposing the release ion in rotation of the plate (2) around its axis of rotation (3). Device (1) for setting in height and locking in rotation of a fixing plate (2) articulated on a snowshoe, according to any one of the preceding claims, characterized in that it comprises two attachment devices _selectively releasable successively one after the other during the angular stroke bringing the tilting support element (14) from its disengaged position to one of its two positions engaged in blocking or climbing wedge and characterized in that the first attachment device (151, 142) makes it possible to immobilize the tilting support element (14) in its completely disengaged position while the second attachment device (152, 141) makes it possible to immobilize the tilting support element (14) in an intermediate position between its fully disengaged position and its engaged position as a blocker. Device (1) for setting in height and locking in rotation of a fixing plate (2) articulated on a snowshoe, according to any one of the preceding claims, characterized in that the rocking support element (6 , 14) comprises at least one actuating lever extending rearwardly beyond the vertical line passing through the axis (7, 18) around which said tilting support element (6, 14) pivots with respect to to the base (5,13). Device (1) for setting in height and locking in rotation of a fixing plate (2) articulated on a snowshoe, according to any one of preceding claim characterized in that the angular deflection angle α (Alpha) that traverses the tilting support element (6,14) between its disengaged position and its engaged position as a blocker is less than 45 ° (forty five degrees). Device (1) for setting in height and locking in rotation of a fixing plate (2) articulated on a snowshoe, according to any one of the preceding claims, characterized in that the angle of angular displacement β (beta ) traverses the tilting support element (6, 14) between its disengaged position and its engaged position as a climbing wedge is less than 75 ° (seventy-five degrees). Device (1) for setting in height and locking in rotation of a fixing plate (2) articulated on a snowshoe, according to any one of the preceding claims characterized in that: - The tilting bearing element comprises two actuating arms disposed on either side of the central actuating arm of the locking element - unlocking and each of these two actuating arms of the tilting element d support has in its upper face a cavity for receiving the tip of the stick, - The locking element - unlocking comprises a single central actuating arm disposed symmetrically with respect to the longitudinal plane of symmetry of the device and in the upper face of this central arm is arranged a receiving cavity for the tip of the stick, the longitudinal axis of this cavity being advantageously disposed in the longitudinal plane of symmetry of said device. Device (1) for setting in height and locking in rotation of a fixing plate (2) articulated on a snowshoe, according to any one of the preceding claims characterized in that: the tilting support element (6, 14) comprises a single actuating arm arranged symmetrically with respect to the plane Ps of longitudinal symmetry of the device in the upper face of this central arm is arranged a cavity (610 ° of reception for the tip of the stick, the longitudinal axis of this cavity being advantageously disposed in the longitudinal plane of symmetry of said device - The unlocking lever (15) comprises two actuating arms located on either side of the central actuating arm of the tilting support element, each of the two actuating arms of the actuating element. locking - unlocking having in its upper face a cavity (153,154) intended to receive the tip of the stick

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