JPH04231986A - Brake for ski - Google Patents

Abstract

PURPOSE: To prevent a ski from sliding down on the slopes when the ski is removed from a skier during the skiing, by partially fitting an energy generator formed in the ski, into a housing in a longitudinal direction, and fitting a connection segment of an arm. CONSTITUTION: An energy generator is formed in a ski 2, at least a part of the energy generator is fitted in a recessed part 11 in a longitudinal direction, communicated with an upper face 2a of the ski, and an internal segment 4c for connection, of an arm 4 is inserted into the recessed part 11 in the longitudinal direction. The energy generator is mounted in a box body 3 at a rear end thereof, slidably in the longitudinal direction, and comprises a compression spring 5 in a longitudinal direction, which pushes forward a piston 6 connected with the internal segment 4c for connection, of the arm 4, at a front part thereof.

Description

[Detailed description of the invention]

[0001] The present invention relates to a ski braking device, namely:
The present invention relates to a device for preventing a ski from sliding on an inclined surface when the ski is detached from the skier during skiing, for example, due to the skier falling and the safety fasteners coming off.

[0002] In general, there are various types of skis which include at least one stop arm forming a "plow" at the end and which are pivotably mounted laterally relative to one smallest side of the ski. Ski brakes are already known. When the ski is released, this spade is normally in a braking position, projecting downwardly from the bottom of the ski. This plow, like other components of the brake, is biased into this position by an energy generating device that includes a return spring. When the ski boot is inserted into the binding carried by the ski and pressed against the upper surface of the ski, the boot conversely raises the plow slightly higher than the level of the upper surface of the ski. It is held in a non-operating position with a level that assumes a nearly horizontal position. When the binding is released and the boot is removed from the ski, the brake is free and the plow is then moved into the braking position by the action of the energy generator. In this way, this plow-like part can penetrate more or less into the snow and immobilize the ski, so that the skier can easily retrieve the ski. Therefore, there is no risk that the skis will slide on the slope and injure or lose the skiers below.

[0003] Currently known ski brakes generally include a base which is fixed to the upper surface of the ski and which contains a braking energy generating device (in particular a return spring). A ski brake of this type is described, for example, in European Patent Application No. A-0227939. The return spring used in such known ski brakes has one end resting on a fixed part of the base, and the other end a movable control member which is itself connected to the plow part of the brake. A longitudinal compression spring supported on the This movable control member is connected to a brake actuation device, which can for example consist of a pedal on which a ski boot rests. Due to the stress required on the compression spring to move the plow into the braking position, this compression spring must have relatively large dimensions, both in length and diameter (ie height). As a result of this, the bases of ski brakes known to date are quite high and form protrusions which can somewhat impede the flat placement of the boot on the ski.

The present invention aims to overcome this drawback by providing a ski brake of a particularly simple design and of a very low height.

To this end, the ski braking device of the invention comprises a pair of stop arms pivotably mounted about a horizontal transverse axis, these arms being arranged below the ski. The brakes can be pivoted between an activated position in which they protrude and an inactivated position in which they extend approximately horizontally at a level slightly higher than the level of the upper surface of the ski; and the ski boot is pressed against the ski. When you are not
a return spring-type energy generating device, usually for moving these arms into a braking position; and a return spring-type energy generating device for moving these arms from their braking position to a non-braking position when a ski boot is pressed against the upper surface of the ski; and a main outer segment, each arm forming a plow-like portion extending outwardly of the smallest side of the ski and penetrating into the snow in the braking position;
a central segment forming a transverse pivot extending above the upper surface of the ski and a connecting inner segment coupled to an energy generating device, characterized in that the energy generating device is connected to the ski; at least partially fitted into a longitudinal housing formed therein and communicating with the upper surface of the ski, and into which the connecting segment of the arm is fitted. be.

Various embodiments of the invention will now be described, by way of non-limiting example and with reference to the accompanying drawings, in which: FIG.

FIGS. 1 and 2 schematically show a brake 1 attached to the upper surface 2a of a ski 2 in order to immobilize the ski on the snow when the ski comes off, for example due to a fall of a skier. The brake 1 is carried by a pedestal comprising an outer case 3, on which two opposing braking arms 4 are mounted for rotation about a horizontal transverse axis xx'. It is attached. Each of these braking arms 4 includes a main segment or "plow" 4a, which constitutes the actuating part of the brake extending outside the smallest side 2b of the ski 2. In the braking position, in which it projects below the ski 2, this plow-shaped part 4a is inclined downwards and towards the rear of the ski so that it can penetrate into the snow. Each spade 4a has at its upper end a central segment which forms a pivot axis approximately perpendicular to this spade 4a and extends horizontally along said axis xx' directly above the upper surface 2a of the ski 2. 4b. Finally, each braking arm 4 is connected to a plane of symmetry P in the vertical longitudinal direction of the ski in the central part of the ski 2.
It terminates in the vicinity of a short connecting (or control) segment 4c approximately perpendicular to the plane defined by the other two segments 4a and 4b. In the braking position shown in FIGS. 1 and 2, the plow-shaped portions 4a of these two parallel braking arms 4 are inclined downwardly and rearward, whereas the two plow-shaped portions 4a of these two parallel braking arms 4 The connecting segments 4c are inclined downwardly and forwardly.

The ski brake 1 also includes an energy generating device housed inside the case 3 of its base. The device consists of a longitudinal compression spring 5 and two arms 4.
a sliding piston 6 coupled to a connecting segment 4c of the piston 6. This compression spring 5 is supported at its rear end on the rear vertical transverse wall 3a of the case 3 and always presses the piston 6 forward. The piston 6 can be driven rearwardly against the action of the return spring 5 by any suitable means that is activated when the boot is inserted into a binding (not shown) carried by the ski. . In the non-limiting embodiment shown in FIG. 1, the piston 6 is hinged at its front end to the ski about a horizontal transverse axis 8 and is connected to the piston 6 via a connecting link 9 from below to above. and is driven by a pedal 7 which is inclined from the front to the rear.

According to the invention, the pedestal case (
The housing 3 is fitted into a housing 11 formed within the ski 2 and communicating with the upper surface 2a of the ski. This housing 11 has the shape of a parallelepiped and extends in the longitudinal direction of the ski 2. The side dimensions of this housing 11 correspond to the dimensions of the case 3 and therefore:
The case fits snugly into the housing. The case 3 is fitted into the ski 2 sufficiently so that its upper horizontal wall 3b projects directly above the upper surface 2a of the ski 2. As a result, case 3 of the pedestal of ski brake 1
protrudes only by a very small height relative to the upper surface 2a of the ski.

When a skier attaches his shoes to the skis 2, the shoes are supported on the pedal 7 of the brake 1, causing the piston 6 to move rearward against the force of the return spring 5. As a result of the movement, the braking arm 4 pivots in a clockwise direction about the horizontal transverse axis xx' by means described in more detail below. As a result of this movement,
The spade 4a moves into an intermediate horizontal position, in which it assumes a position slightly higher than the level of the upper surface 2a of the ski, but still on the ski, as shown in FIG. It is located outside the vertical plane of the smallest side surface 2b. In this intermediate position, the short connecting segment 4c assumes a vertical position and can from this moment become the pivoting vertical axis for the final part of the retraction movement of the spade 4a. This final pivoting movement ensures that the central segment 4b of each arm is moved rearward and that each spade 4a is moved in the direction of the vertical longitudinal plane of symmetry P of the ski, so that the final In the inactive position, these two plow-shaped parts 4a are retracted inwardly above the upper surface 2a of the ski 2, as shown in FIG.

If the skier's shoe ceases to be pressed flat against the ski 2 by falling or by voluntarily taking his foot off the ski, the action of the return spring 5 reverses the movement. occurs. That is, the plow-shaped portion 4a first moves from the non-actuated position (that is, the retracted position) of FIG. 5 to the intermediate position of FIG. 4 and then to the braking activated position of FIGS. 1 and 2.

With particular reference to FIGS. 6-11, a specific embodiment of a brake according to the invention will now be described.

As can be clearly seen in FIG. 11, the piston 6, which is longitudinally slidably accommodated in the case 3 of the brake pedestal, consists of a substantially parallelepiped block, which has an upper rear portion. , carries a support member 12 for a transverse hinge connection shaft 13 which securely connects the piston 6 and the link 9 connected to the pedal 7. For this purpose, the support member 12 is attached to the upper wall 3 of the case 3.
projecting upwardly on the rear part of the upper wall 3b of the case 3 through a longitudinal slit formed in b. Furthermore, the piston 6 has, in its upper front part, two longitudinal side ramps 14 which are constituted by two longitudinal surfaces that are slightly recessed with respect to the longitudinal surface 6a of the piston 6. These lateral ramps 14 define in the upper part of the longitudinal surface 6a two opposite longitudinal recesses 15 into which the inner ends of two movable stops 16 are inserted. Ru. These stops are each formed in two blocks 18, formed in two blocks 18, arranged and fixed on each side of the longitudinal housing 11, under the raised front part 3c of the upper wall 3b of the case 3. is slidably mounted within the Each housing 17 (and thus each stop 16) is sloped towards the front and outside of the ski. Each stop 16 is defined rearwardly by a front face 18a of the corresponding block 18 (which front face is sloped outward and rearward of the ski) and towards the front by a vertical A space 1 that forms a shaft bearing defined by the transverse wings 20a of the support member 20, which is symmetrical with respect to the longitudinal plane of symmetry P and whose horizontal cross section is Ω-shaped and has a U-shaped central portion that opens rearward.
It communicates within 9. In each space 19 forming a bearing, a pivoting central segment 4b of one arm 4 of the brake is inserted and held. This segment 4b is preferably pressed onto an intermediate horizontal strip 3d of the case 3, which isolates it from the upper surface 2a of the ski 2. The length of each sliding stopper 16 is
In the braking position (FIG. 7), the front end of this stop contacts the pivoting central segment 4b of one arm 4, thereby holding this part towards the rear, and
The rear end of this stop is inserted into the recess 15 of the piston 6, and at the rear end portion of the corresponding side ramp part 14,
Select to make contact with the lamp section. This side ramp portion 14 is connected to the upper front face 21 of the piston 6 via a chamfered intermediate surface 22, and as will be explained later, when the piston 6 is pushed sufficiently rearward, the rear end of the stop 16 It is supported on a chamfered intermediate surface.

The central pivoting segment 4b of each arm 4 is acted upon by a spring 23 which tends to push it rearwardly against the front end of the stop 16. This spring may be of any suitable type, in particular a torsion spring whose one end branch biases the pivoting center segment 4b rearwardly through a hole drilled in the wing 20a. I can do it.

The piston 6 is connected to the two short connecting segments 4c of the arm 4 by a yoke-like connecting member 24, which is approximately parallel to the spade-like portion 4a of the arm 4. This yoke 24 includes two wings 24 extending rearwardly from a forward transverse core 24b and connected to each other by a horizontal transverse axis 25. These two wings 24a of the yoke 24 are inserted into a recess 26 provided in the front lower part of the piston 6, and the horizontal transverse axis 25 is formed in the lower central part of the front face 28 of the piston 6. It is located immediately behind the hook 27 which opens upward. Moreover, this hook 27, via its upper front edge 27a, which is advantageously chamfered, just contacts the lower rear part 24c of the coupling yoke 24, which is also advantageously chamfered. Therefore, when the piston 6 is driven backward, the shaft 25 of the yoke 24 is pulled backward by the hook 27, so that the yoke 24 is pulled backward by the hook 27.
4 rotates clockwise about the transverse axis xx'. In contrast, when the piston 6 is pushed forward by the spring 5, the forward hook 27 of this piston, when it contacts the coupling yoke 24, moves this yoke 24 in a counterclockwise direction about the transverse axis xx'. Rotate it. In order to ensure the connection with the arm 4, two holes 29 are bored in the transverse center 24b of the yoke 24 and have parallel axes that are aligned in the transverse direction. each has a segment 4 for connecting two arms 4.
c is inserted.

As shown in FIGS. 6 and 7, in the braking position, the piston 6 is pushed forward as much as possible by the spring 5, and the front hook 27 of the piston 6 engages the center 24b of the connecting yoke 24. Push forward and upward;
As a result, this yoke 24 slopes from below to above and from rear to front. The same applies to the plow-shaped portion 4a that is substantially parallel to the yoke. Moreover, the pivoting central segment 4b of the arm 4 is brought into contact with the bearing wing 20a in line along the transverse axis xx' by means of a sliding stop 16 which is itself supported against the ramp part 14. kept in alignment. As for the connecting segments 4c, these parts slope downwardly and forwardly.

When a skier attaches his shoes to his skis, he presses the pedal 7 with his shoe, causing the piston 6 to move.
A backward movement occurs. During this movement, the piston 6, via its front hook 27, rotates the connecting yoke 24 to which it is connected by a transverse axis, as well as the plow-shaped part 4a, in a clockwise direction, when the plow-shaped Portion rises. During this movement, ramp portion 14 slides rearwardly while remaining in contact with the rear end of stop 16 which securely holds pivoting central segment 4b in alignment along the transverse axis.

When the plow-shaped portion 4a reaches the intermediate horizontal position,
The various movable parts take the positions shown in FIG. 8 and the right half of FIG. 10. The coupling yoke 24 has now moved into a horizontal position, and the shaft 25 is in this case just at the level of the upper surface of the hook 27. The connecting segment 4c is in a vertical position and from this point can serve as a vertical pivot for the spade 4a. Slide stopper 16
The rear end of the ramp section 14 now just contacts the chamfered surface 22 terminating in front of the ramp section 14 .

As the piston 6 continues its rearward movement from the intermediate position to the rear end position corresponding to the inoperative position, the rear end of each stop 16 slides into contact with the opposing chamfered surface 22; As a result, the stop 16 is gradually released,
and can slide backwards and inwards (ie in the direction of the vertical longitudinal plane of symmetry P). The front end of the stop in contact with the pivoting central segment 4b of one arm 4 is
This gradually releases this part, so that the entire arm 4 of the brake can pivot about the vertical axis constituted by the corresponding coupling segment 4c. This pivot movement, held in a vertical position by the coupling yoke 24 and limited by the front face 18a of the block 18, is in this case carried out by the action of the spring 23, which serves to push the pivoting central segment 4b of the arm 4 backwards. .

[0020] When a skier voluntarily removes his shoes from the skis, or when the shoes detach from the skis due to a fall, the ski brake 1 becomes free and automatically moves into the braking position. At this time, the above operations are performed in the opposite direction. The piston 6 is pushed forward by the spring 5 so that the chamfered front surface 22 of the piston 6
gradually pushes the stop 16 forward and outward, and then
Side ramps 14 immovably fix the stop 16 in the forwardly pushed position. The stop 16 is such that the pivotable central segment 4b is pressed against the wing 20a and the transverse axis xx
Move these pivoting central segments forward until they are aligned along '. This movement corresponds to a horizontal movement of the spade transitioning from the retracted position to the intermediate position. The coupling yoke 24 remains horizontal throughout this movement.

When the intermediate position is reached, the shaft 25 of the connecting yoke 24 moves behind the hook 27, which acts on the lower part of the yoke 24 and
is rotated clockwise about the transverse axis xx'. As a result, each arm 4 pivots in a counterclockwise direction about the transverse axis xx' and the respective plow-shaped portion 4a
moves to the brake application position.

Although in the above description it has been said that the piston 6 of the ski brake is driven by a pedal actuated by the sole of the shoe, it goes without saying that the movement of the piston may be caused by some other movable member. . This movable member that controls the retraction of the brake into the inactive position may be the rear binding body, and in this case utilizes sliding movement of the binding body within a slide guide. Similarly, this movable member may be an element of a binding that senses the presence or absence of a shoe. In this way, this element may be constituted by a rocking device located within the binding body, or alternatively by a jaw in the case of a magic binding (i.e. always in the open position in the absence of a shoe). It may be configured by a jaw part).

In an alternative embodiment of the invention shown in FIGS. 12 to 15, instead of the sliding piston 6 according to the embodiments described above, two superimposed independent members (ie , a lower piston 6 pushed forward by a spring 5 and connected to a coupling part 24, similar to the piston 6 described above, and an upper control slide 29 sliding on the upper surface of the lower piston 6.
) is used. This upper slide 29 has, in its front part 29a, a lateral ramp 14, a front face 21 and a bevelled intermediate surface 22. The upper slide 29 has an overall U-shape open to the rear when viewed in plan, and includes two longitudinal rear branches 29b, 29c that extend the front portion 29a rearward. These two rear branch parts 29b, 29c are connected to the lower piston 6 and the pedal 7, respectively.
Extending on both sides of the support member 12 is a horizontal transverse hinge connecting shaft 13 which ensures the connection between the link 9 connected to the support member 12 . The support member 12 includes two parallel vertical wings with an axis 13 extending between the two wings. Figure 15
As shown, between the two wings of the support member 12 there is a longitudinal section connected to the control slide 29 on the one hand and to the body 32 of the rear binding (i.e. heel piece) 33 on the other hand. Tie rod 31 is passing through.

As shown in FIGS. 12 and 13, in the brake application position, the upper control slide 29
occupies its front end position, in which the inner ends of the two stops 16 come into contact with the ridge formed at the connection between the two chamfered intermediate surfaces 22 and the side ramp parts 14.

The operation of the ski brake shown in FIGS. 12 and 13 will now be described with particular reference to FIGS. 15A, 15B, and 15C. FIG. 15A shows the brake pedal 7
The state in which the lower piston 6 and the upper control slide 29 occupy the front end position is shown when the lower piston 6 and the upper control slide 29 are in the front end position after the heel piece 33 is removed and the lower piston 6 is raised. When a skier attaches his shoes to his skis, he first presses only the pedal 7 with his ski boots. At this time, the pivoting movement of the pedal 7 is transmitted to the lower piston 6, which only moves back against the action of the return spring 5, while the control slide remains immobile. This retreat occurs when the brake arm 4 is in the intermediate horizontal position (Fig. 1
5B). As the downward movement of the shoe (i.e. the movement of the boot flat against the ski) continues, the rear part of the sole pushes the body 32 of the heel piece 33 backwards, causing this heel piece to Set it securely. This retraction of the main body 32 causes the longitudinal tie rod 31 and the upper control slide 29 to move rearward. This slide thus releases the stops 16, so that these stops can be slid rearwardly within their housing 17 by releasing the arm 4 of the brake, which is explained above. As before, these arms retract under the action of spring 23.

If the ski comes off, either voluntarily or for safety reasons, the above movement is reversed and the heel
The body 32 of the piece 33 is pushed forward by the action of the retraction spring of the heel piece. The tie rod 21 thus moves the upper control slide 29 to its front end position, and the lower piston 6 is also pushed by the spring 5 to its front end position.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view, partially cut away, of a ski brake according to the invention in a brake activated position;

FIG. 2 is a simplified perspective view of the brake of the invention, showing only the arm in the braking position;

FIG. 3 is a side view of the ski brake in the inactive position, with the arm extending horizontally above the upper surface of the ski;

FIG. 4 shows the arm in an intermediate horizontal position;
FIG. 1 is a simplified perspective view of a ski brake.

FIG. 5 is a simplified perspective view of the ski brake, with the arm shown in a retracted position toward the inside of the ski;

[Figure 6] One of the ski brakes in the brake activation position
FIG. 2 is a vertical cross-sectional view of main parts showing an embodiment.

FIG. 7 is a schematic horizontal sectional view of the case of the ski brake in the activated position, assuming that the upper wall is removed;

FIG. 8 is a longitudinal sectional view of the ski brake in an intermediate position with the arm raised horizontally above the upper surface of the ski;

FIG. 9 shows a longitudinal section through the ski in the inoperative position, with the arms retracted in the direction of the ski's longitudinal vertical plane of symmetry;

FIG. 10 is a horizontal sectional view of the ski brake with the upper wall of the case removed, the right half of the figure showing the brake in an intermediate position and the left half showing the brake in the inactive position; show.

FIG. 11 is an exploded perspective view of the piston and the member that ensures the connection between the piston and the brake arm.

12 is a schematic horizontal sectional view of a variant embodiment of the ski brake in the braking position; FIG.

13 is a longitudinal sectional view of the ski brake shown in FIG. 12. FIG.

14 is a perspective view of a sliding piston and a control slide of the ski brake shown in FIGS. 12 and 13; FIG.

15(A) is a schematic side view showing the operation of the ski brake of FIGS. 12 and 13; FIG. (B) is a schematic side view showing the operation of the ski brake of FIGS. 12 and 13; (C) is a schematic side view showing the operation of the ski brake of FIGS. 12 and 13;

[Explanation of symbols]

2 Skis 2a (Skis) Upper surface 3
External enclosure 3a Rear vertical wall 3b Horizontal upper wall 3c Elevated front section 4
Opposing brake arm
4a Main segment (plow-shaped part)
4b Central segment 4c
Connecting segment 5
Compression spring 6 Piston 7 Pedal 9 Connecting rods 11, 17
Recessed portion (dent) 12 Support member 14 Side ramp portion 16
Movable stop 18 Block 18a Front surface 19 Space 20a Transverse wing section 21 Upper front surface 22 Chamfered intermediate surface 23
Spring 24 Connecting member 24a Wing portion 24b Front transverse center portion 25
Horizontal transverse axis 27
Hook 29 Hole 29 Upper control slide 31
Longitudinal tie rod 32
Main body

Claims (11)

[Claims] 1. A brake actuation position projecting downwardly of a ski (2) and an upper surface (2a) of the ski, mounted pivotably about a horizontal transverse axis (x-x').
a pair of stop arms (4) pivotable between an inactive position extending approximately horizontally at a level slightly higher than the level of the brake; when the shoe is not pressed against the ski, the brake Energy generating device (5, 6) with a return spring (5) for shifting said stop arm (4) into the working position
and; when the shoe is pressed onto the upper surface (2a) of the ski, said arm (4) moves from the braking position to the non-braking position.
), each of said stopping arms forming a plow-shaped portion penetrating into the snow and displacing the ski (2) in the braking position.
) a main external segment (4a) extending outwardly of the smallest side (2a) of said ski (2) and a central segment (4a) forming a transverse pivot axis extending upwardly of said upper surface (2a) of said ski (2).
4b) and a coupling internal segment (4c) connected to said energy generating device (5, 6), said braking device for skis comprising:
is formed in said ski (2) and is at least partially fitted into a longitudinal recess (11) communicating with the upper surface (2a) of said ski, and a connecting interior of said arm (4). Segments (4c) form said longitudinal recesses (11
) A braking device for skis, characterized in that it is inserted into a ski braking device. 2. Claim 1, characterized in that it comprises a housing (3) enclosing the energy generating device (5, 6) and fitting tightly into the longitudinal recess (11).
Braking device for skis. 3. The energy generating device is supported at its rear end in a rear vertical transverse wall (3a) of the housing (3) and is longitudinally slidably mounted within the housing (3). At the same time, in the front part, the arm part (4)
Braking device for skis according to claim 2, characterized in that it comprises a longitudinal compression spring (5) pushing forward a piston (6) connected to the connecting inner segment (4c) of the ski. 4. A piston (
A member (6) passes through a longitudinal slit formed in the upper wall (3b) of the housing (3) and projects upwardly above the rear part of the upper wall (3b). 4. Ski braking device according to claim 3, characterized in that it is integral with the actuating means (9, 7) and is integral with the actuating means (9, 7). 5. Each of the pivoting central segments (4b) of the stop arm (4) is connected to the upper wall (3) of the housing (3).
b) below the raised front part (3c), extending between said raised part (3c) and the upper surface of the ski (2) and between the front bearing surface (20a) and the rear Bearing surface (
18a) and is housed in a space forming a bearing part (19) defined between the bearing part (19) and the bearing part (19).
Braking device for skis. 6. A front bearing surface (20a) extending in the transverse direction and defining a space for forming the bearing portion (19) toward the front, and a space for forming the bearing portion (19) toward the rear. A rearward bearing surface (18a) defining a rearward bearing surface (18a) slopes outwardly and rearwardly and is further provided with elastic means (23) to support each of the pivoting central segments (4b); a slidable stop (16) laterally contacting said segment and along the longitudinal position of the longitudinally sliding member (6, 29), which can be fixed or released by said member; 6. The braking device for skis according to claim 5, wherein the ski braking device 7. Each of the stops (16) is connected to the housing (
The raised front part (3c) of the upper wall (3b) of 3)
is slidably mounted in a recess (17) formed in a block (18) disposed and fixed below said block, said block having a rear bearing surface defining rearwardly a space forming a bearing part (19). each recess (17) is bored through the block (18) along an outwardly and forwardly inclined direction;
And the rear end of each stopper (16) is connected to the control member (6, 29).
) into contact with the longitudinal side ramps of said control member (6, 29) or along the longitudinal position of said control member (6, 29). a chamfered intermediate surface (22) connecting the front surface (21) of the control member and each side ramp portion (14);
7. Braking device for skis according to claim 6, characterized in that the braking device is in contact with: 8. Braking device for skis according to claim 7, characterized in that the control member of the stop (16) is constituted by the upper part of the piston (6). 9. The control member of the stop (16) consists of an upper slide (29), said upper slide being separate from the lower piston (6) and slidably mounted on said piston. The body (3) of the rear binding (33) is longitudinally movable via the longitudinal tie rod (31).
8. Braking device for skis according to claim 7, characterized in that the control upper slide (29) follows the movement of the movable body (32) of the rear binding (33). 10. The piston (6) comprises a connecting member (29) in which two parallel holes (29) are bored at its front end.
24), each of said two holes has a hook (27) connected to said connecting member (24) such that longitudinal sliding of said piston results in rotation of said connecting member (24) about a transverse axis. Braking device for skis according to any one of claims 5 to 9, characterized in that each of the connecting segments (4c) of two arms (4) is inserted. 11. The connecting member (24) is constituted by a yoke including two wings (24a) extending rearward from the transverse center (24b), and the connecting segment (4c) is formed in the transverse center. ) is drilled with a hole (29) for receiving the yoke, the two wings (24a) of the yoke are inserted behind the front hook (27) of the piston (6), and a transverse member capable of sliding on the upper surface of the hook. Connected by a directional axis (25), the connecting segment (4) of said arm (4) is connected by longitudinally backward sliding of said piston (6).
c) by rotating the connecting yoke (24) upwardly in a horizontal position where it is vertical, and by sliding the piston (6) longitudinally forward; Claim characterized in that the connecting segment (4c) of the arm (4) is tilted downward from the high side and from the rear to the front. Braking device for skis according to No. 10.