FR2580940A1 - BRAKING DEVICE FOR SKIING - Google Patents

Abstract

THE PRESENT INVENTION CONCERNS A BRAKING DEVICE FOR SKIING, ESPECIALLY FOR CROSS-COUNTRY SKIING. THIS BRAKING DEVICE IS CHARACTERIZED BY THE FACT THAT IT INCLUDES, ON THE ONE HAND, MOBILE BRAKING MEANS 3 COOPERATING WITH SNOW OR ICE, AND ON THE OTHER HAND, SELF-REGULATING CONTROL MEANS 4 MOBILE BRAKING MEANS 3, OPERATED BY THE SKIER. THE INVENTION CONCERNS THE INDUSTRY OF SPORTS ARTICLES, IN PARTICULAR THE SKI INDUSTRY.

Description

The present invention relates to a ski braking device,

especially for cross-country skiing.

  In the present state of the art, there are known devices

  braking skis, consisting essentially of two elongated claws.

  ticks that enter the snow when the skier has unintentionally

so much.

  Consequently, these known ski braking devices have

  in order to slow down the ski race when it has come off the shoe, following a fall, and this in order to facilitate their

recovery.

  Consequently, these known ski braking devices come into action only when the ski is detached, and do not allow the skier to control his speed during the use of the skis. This is a disadvantage, especially for cross-country skiers, for whom the link between the cross-country ski boot and the ski is not rigid enough to be of a nature to allow good control of the skis.

  speed, as is the case in alpine skiing.

  It is therefore an object of the present invention to

  a ski braking device, particularly for cross-country skiing,

  designed to improve safety during the practice of this sport.

  Another object of the present invention is to provide a particularly simple and effective braking device, for which the extent of braking is determined quite naturally by the position of the skier

on the skis.

  For this purpose, the invention relates to a ski braking device, in particular for cross-country skiing, characterized in that it comprises, on the one hand, movable braking means co-operating with snow or ice, and on the other hand, self-regulating means of control of the means

  movable brakes actuated by the skier.

  The invention will be well understood with reference to the following description:

  as a non-restrictive example and to the drawing appended hereto.

  which: - Figure 1 is an elevational view of the braking device fixed on

ski and skier's shoe.

  FIG. 2 is a partial view of the braking device, showing by

  above the mobile braking means in the rest position.

  FIG. 3 is a view along section 111-111 of FIG.

  - 2- - Figure 4 is a top view showing the braking means

movable in the braking position.

  FIG. 5 is a view along section V-V of FIG. 4.

Reference is made to FIG.

  The entire braking device 1 for skiing, in particular for

  cross-country skiing 2 consists mainly of two parts: on the one hand, a

  seems of mobile braking means 3 intended to sink into the nei

  in the ice to slow down the skier, and secondly, a set of self-regulating control means 4 allowing the transmission of the

  movement of the skier's leg 5 to the mobile braking means 3.

  According to the invention, the mobile braking means 3 are constituted by two movable claws 6 intended to be driven into the snow or into the ice during braking and thus to cause the skier to slow down.

  For this purpose, the movable claws 6, preferably made of metal, possess

  an end 7 preferably affecting the shape of a helicorde,

  that is to say, it is bent both backward and towards the

  lower section 8 of the ski. The movable claws 6 also comprise a part

  rectilinear tie 9 which is engaged in a chute 10 arranged in a

  As a result, the movable claws 6 are free in rotation.

  in the chute 10 of the fixing plate 11, but are blocked

  in translation through their other end 12 which is recourse

to provide a judgment 13.

  Of course, because of the particular shape of the end

  curved 7 mobile claws 6, as long as they are not forced

  You can go back in the snow or in the ice, they just slide on this snow or ice, without providing braking. By cons, according to the invention, a vertical pressure on the movable claws 6 causes the rotation thereof downwards and, therefore, their penetration into the snow, to which they oppose a resistance, which is at the origin of

braking of the skier.

  It is therefore necessary for the braking device to be

  to have control means that are capable of provoking the

  penetration of moving claws 6 in the snow during braking.

  For this purpose, the ski brake device 1 comprises the

  yens of control 4-movable claws 6. According to the invention, these means

  4 of which is provided the ski boot 14 are mainly

  The sleeve 15 surrounding the skier's leg is positioned at the level of the zone 18 corresponding to the lower part of the tibia and is maintained by a sleeve 15 connected to a stirrup 16 via a rod 17. by any clamping device 19. The sleeve 15 is further secured laterally with respect to the boot 14 by

  intermediate tabs 20 provided with a suitable hinge 21.

  The sleeve 15 is further provided at the zone 22 cor-

  corresponding to the portion located above the Achilles tendon of the skier, a rigid shell 23 for transmitting the flexion movements

  from the skier's leg 5 to the rod 17. For this purpose, the shell 23 is

  particularly provided with a ball 24 cooperating with the end 25 of the rod 17. The stirrup 16 is connected, on the one hand, to the sole 26 of the boot 14 via the ends 27, and, d ' secondly, at the end 28 of the rod 17 via its end 29. In a preferred embodiment of the invention, the stirrup 16 is rotatable

  around the ends 27 cooperating with a hinge means 30 some-

  conch located on the boot 14. When using the ski braking device according to the invention, a rearward movement of the leg 5 of the skier is transmitted to the moving claws 6 via the control means 4 constituted by the sleeve 15, the rod 17 and

the stirrup 16.

  The operation of this braking device will be better understood

  with reference to Figures 2, 3, 4 and 5.

  In Figure 2 appears the position of the heel 31 of the shoe 14 of the skier, which is also immobilized via the footrest 32 (Figure 1). In Figures 2 and 3, the movable claws 6 appear in the rest position, that is to say outside a braking phase, the skier having his legs 5 bent forward. As a result, the stirrup 16 is not applied to the movable claws 6 which are in the up position and are not driven into the snow. As a result, they do not provide

braking effect.

  On the other hand, in FIGS. 4 and 5, the movable claws 6 are

  in a braking phase, during which the skier

  erected, that is to say that the stirrup 16 is pressed on the movable claws 6 force it to penetrate into the snow below the ski 2 causing,

this is a braking effect.

  It should be noted that the operation of the ski braking device according to the invention is self-regulating. Indeed, it is obvious that if the braking becomes too intense, the skier tends to fall forward, so to bend his legs and, consequently, to allow the moving claws 6 to go back to the rest position, which correspond to

the end of braking.

  Conversely, in case of too sudden acceleration or rear imbalance, especially in the case of a descent, the skier will have a tendency

  to fall backward. As a result, the stirrup 16 will be applied to the grif-

  6, which corresponds to the beginning of a braking phase

  causing the skier to restore his balance.

  It should be noted, moreover, that the fixing plate 11 positioning the movable claws 6 can be provided with a suitable longitudinal adjustment in order to position the claws ideally according to the size of the foot

of the skier.

  Finally, according to another embodiment provided for the present invention, the movable claws 6 can be secured directly with the stirrup 16 so as to move with it, rather than being fixed.

  on the ski 2, which makes it possible to bring to this one no modification.

  Of course, the determination of the optimal shape of the ends 7 of the moving claws 6 is within the reach of those skilled in the art in order to obtain the best braking possible, on the one hand, and to allow, other mobile claws 6 to remain in the rest position by simple

  reaction of the snow outside a braking phase.

  Among the advantages relating to the braking device according to the invention, it can be noted that, apart from increased safety, this braking device also behaves like an anti-recoil brake or a brake making it easier to recover the skis. lost

following a fall.

  Although the invention has been described with respect to a form of embodiment

  particular, it is understood that it is by no means limited and that various modifications of shapes, materials and combinations of these elements can be made without departing from the

  and the spirit of the present invention.

-5-

Claims (11)

claims   1. Braking device for ski, in particular for cross-country skiing, characterized in that it comprises, on the one hand, braking means   (3) cooperating with snow or ice, and on the other hand,   yen self-regulating controllers (4) movable braking means (3) actuated by the skier. 2. Braking device according to claim 1, characterized in that the movable braking means (3) are constituted by two movable claws (6) provided with curved ends (7) cooperating with the   snow or ice laterally and / or below the skis (2) during the braking swimming.   3. Braking device according to claims 1 and 2, characterized   in that the curved ends (7) of the moving claws (6) have a helical shape.   4. Braking device according to claims 1 and 2, characterized   se in that the movable claws (6) are made integral with the ski (2) via a fixing plate (11) provided with troughs   (10) in which the rectilinear part (9) of the movable claws (6) is   in rotation, said movable claws (6), however, being locked in   translation by the curved ends (12) constituting stops (13).   Braking device according to Claim 1, characterized in that the self-regulating control means (4) of the control means   movable brakes (3) are constituted by a sleeve (15) positioned   turn of each leg (5) of the skier and cooperating with a stirrup (16) by via a rod (17).   6. Braking device according to claim 5, characterized in that the sleeve (15) positioned around each leg (5) of the skier is attached to the shoe (14) via two legs (20) provided with joints (21).   7. Braking device according to claim 5, characterized in that the sleeve (15) comprises a rigid shell (23) provided   a ball (24) cooperating with the end (25) of the rod (17).   8. Braking device according to claim 5, characterized in that the stirrup (16) is connected, on the one hand, to the sole (26) of the shoe (14) via the ends (27). cooperating with a   articulation (30) on the shoe (14), and on the other hand, at the - 6-   mité (28) of the rod (17) via its end (29).   Braking device according to claim 5, characterized by   the fact that the rod (17) is articulated, on the one hand, with respect to the end   té (29) of the stirrup (16) and, secondly, with respect to the ball (24) of the rigid shell (23).   Braking device according to claims 1 and 5, characterized   the fact that the movable claws (6) are integral with the stirrup (16).   Braking device according to claims 1 and 5, characterized   due to the fact that the braking is obtained in a self-regulating manner by rectification of the skier's legs (5), causing pressure on the moving claws (6) by the stirrup (16), and eliminated by bending skier's legs (5), corresponding to a suppression of said pressure.