FR2611516A1 - Safety front-stop device for a monoski - Google Patents

Abstract

Safety front-stop device for a monoski, comprising an actual stop 1 positioned transversely to the board 2 of the monoski, which stop 1 has, on the frontal part, two jaws 4 and, on the other side, two journals 5 which interact with lateral elastic means placed in a stop body 9, which elastic means permit oscillation of the stop 1.

Description

 The present invention relates to a safety front stop device for mono-ski, making it possible to automatically release the two boots in the event of a fall of the skier.

 Currently, the mono-ski board is equipped with a front stop and rear fixing means for each boot, which means are independent of each other. A disadvantage of this design is that the safety at the trigger level, Xors of a fall in torsion, is very often limited to the release of a single shoe. Indeed, the release of the second shoe being made impossible due to the very close position of the two front stops which does not allow the release of the second shoe. Namely, that when under a torsional force the right shoe, for example, emerges to the right, then the left shoe is subjected to the same torsion and its stop is blocked on the right stop and vice versa. This drawback considerably increases the athlete's risk of bodily injury.

 The invention which is the subject of the present application makes it possible to avoid these drawbacks in that the blocking of the stops between them is eliminated, allowing easy release of each shoe.

 The present invention is mainly characterized in that the jaws of the front safety stops are formed in a single movable element for both feet.

 The stopper proper, comprising the two jaws, switches to the right or to the left by means of two springs with contiguous turns put under prestressing with screws which adjust the hardness due to tripping of the shoes.

 The stopper itself drives its adjustment elements, when its pivoting exceeds a certain angle, on the right or on the left, in order to give a greater amplitude to the movement.

 The adjustment elements of the springs of the stop oscillate around a pivot which is integral with a base plate. The rear fastening means of the shoes can be sold commercially.

 The invention is set out below in more detail with the aid of drawings representing only one embodiment by way of nonlimiting example.

 Figure 1 shows, in vertical section, a front safety stop for mono-ski with its adjustment elements.

 2 shows, in horizontal section, a front safety stop for mono-ski with its adjustment elements.

 Figure 3 shows the entire device in front view.

 FIG. 4 represents a variant design of the central elastic means of the abutment body.

 The figures represent a front safety stop device for mono-ski, essentially comprising a stop 1 proper positioned transversely to the board 2 of the mono-ski, which stop 1 has on the side, facing the boots 3, two jaws 4 and on the other side two pins 5 which cooperate with elastic means to give an oscillatory movement to said stop 1.

 The jaws 4, placed on the front part of the stop 1, are curved and sufficiently spaced to receive respectively the tip of a shoe 3. The stop 1 carries opposite to each jaw 4, in the axis of the shoes 3 , trunnions 5 around which are placed coil springs 6 whose pressure is adjusted by means of screws 7. This screw 7 has a central cylindrical recess 8 greater than the diameter of the trunnion 5, in order to receive the end of the latter in order to vary the compression of the coil spring 6.

 The adjusting screws 7 are placed in an abutment body 9 which is fixed by means of an axis 10 on a plate 11.

 The stationary axis 10 has a flat 12 on the front, on which flat 12 is supported by a pin 13 which cooperates with a coil spring 14 to the lateral movement of the stop body 9. The pressure of the coil spring 14 is adjusted by means of a screw 15, in the same way as the springs 6.

 The stopper 1 is introduced, shoe side, into the stopper body 9 which preferably entirely covers it, which stopper 1 is held, in reaction to the springs 6, by a transverse piece 16 which has fallout 17 retaining it on the front side. This transverse piece 16 may consist of one or more pieces and has a triangular section, so that the side facing the shoe tips is oblique so as not to hinder the latter in their oscillation to the right or left. The part 16 is fixed to the stop body 9 by means of several screws 18. The axis 10, on which the stop body 9 pivots, is secured by its lower end perpendicularly to the plate 11 by means of a weld, for example. The Latin n 11 is fixed to the ski board 2 with screws 19 and the abutment body 9 is immobilized on the plate with a screw 70 which is fixed on the upper end of the axis 10.

 FIG. 4 represents a variant design of the elastic means of the abutment body, which means differs from the previous one in that it is completely independent of the axis 21.

The stop body 9 pivots on an axis 21 and opposite the latter has a transverse and horizontal recess 22, in which are housed two springs 23 separated by a rod 24 which is fixed on the plate ll by its lower end.

The recess 22 has a curved shape so as to be concentric with the axis 19 to allow the semi-circular oscillation of the abutment body 9 on the axis 21. The rod 24 has an oval section and is fixed on the plate with a pivoting attachment, sold commercially, making it possible to orient said rod to adjust the pressure of the springs 23 which are locked in the recess with screws 25.

 The recess 22 is open over its entire length, on its lower part, for the passage of the rod 24 allowing the oscillation of the abutment body 1.

 The jaws 4 and the plate II can be covered with a sliding plate 26 to facilitate the release of the shoes 3.

 According to the invention described above, during a twist, the release of a foot 3 creates an imbalance of forces on the stop 1, which pivots and allows the automatic release of the other foot.

Claims (6)

1) De-security front stop device for mono-ski, characterized in that the same stop body (9) oscillates on a central elastic means and contains two lateral elastic means which maintain the same transverse stop (1) for two shoe tips (3), which stop (1) has on its front face two jaws (4> and on the opposite face carries two pins (5) which compete with the lateral elastic means placed in the stop body. (9) . 2) Device according to claim 1, characterized in that the two jaws (4), formed by two bends, are suitably spaced on the same stop (1) to receive the two juxtaposed points of a pair of shoes (13). 3) Device according to claim 1, characterized in that the triggering safety of the stop (1) is adjusted with two lateral elastic means. 4) Device according to claims 1 and 3, characterized in that the elastic means consist of coil springs (6) placed on two pins (5) and held with screws (8).  5) Device according to claim 1, characterized in that the stop body (1) oscillates on an axis (10) fixed by the lower end to a plate (11). 6) Device according to claims l and 5, characterized in that the axis (10) comprises a flat (12) on which oscillates a pin (13) provided with a coil spring (14) and screws (15).