EP1810726A2 - Device for fixing a boot onto a snowboard - Google Patents

Abstract

The fixing system consists of front (4) and rear (5) boot clamps, a lengthwise connector (6) and a spring (23) applying a force that moves one clamp towards the other. The connector and spring are aligned, with the connector made from front and rear threaded rods (10, 11) with a length regulator (12). It is pivoted to one or both clamps while being rigid in traction and compression as the ski itself flexes.

Description

The present invention relates to a device for attaching a boot to a gliding board.

In the usual way in the field of snow sliding sports, a shoe is retained by two retaining elements, a front retainer and a rear retainer, which are assembled to the ski.

When, during use, the ski is flexed, the two retainers, which tend to come closer to each other, exert significant stress on the shoe. In response and because of the rigidity of the boot, efforts are transmitted to the ski, which can have an influence on the behavior of the latter.

To avoid the transmission of these efforts to skiing, the document CH 687 589 proposes the establishment of a rod between the front retaining element and the rear retaining element. This rod ensures the recovery of forces between the front retention element and the rear retention element. Such a device does not work optimally to the extent that the connecting rod hinders the free flexion of the ski.

On the other hand, in the fixing devices known in the prior art, the recovery of forces by an element placed under the front and rear retention elements generates moments of force at the level of the latter which tend to tilt them towards the front for the front and rear retainer for the rear retainer.

The object of the present invention is to provide a device for attaching a boot to a gliding board that makes it possible to overcome the limitations posed by the devices known in the prior art. In particular, the object of the invention is to provide a device for attaching a boot to a gliding board which does not hinder the free flexion of the gliding board.

The invention also aims to provide a gliding device comprising a gliding board equipped with a shoe attachment device on a gliding board that does not interfere with the free flexion of the gliding board.

The invention also aims to provide a gliding apparatus comprising a stop-ski brake, a front retention element, a rear retaining element and a connecting element between the front retaining element and the retaining element. rearward for the recovery of forces between them and in which the moments of forces that are generated at the latter having a tendency to tilt them forward for the front and rear retention element for the rear restraint have their effects diminished.

The object of the invention is obtained by the provision of a fixing device and a gliding device according to the claims. In particular, the object of the invention is obtained by providing a device for attaching a boot to a gliding board comprising a front retaining element, a rear retaining element, a connecting element between said element of front retainer and said rear retainer and a recoil spring exerting a force constraining towards each other said front retaining element and said rear retaining element, characterized in that said connecting element and said recoil spring are aligned and in that said connecting element comprises means for articulation relative to said front retainer and / or said rear retainer.

The object of the invention is also obtained by providing a gliding apparatus comprising a gliding board equipped with a fixing device, a first stop-ski brake placed on a first side of the gliding board and a second stop-ski brake placed on the other side of said gliding board.

The object of the invention is also obtained by the provision of a gliding apparatus comprising a gliding board equipped with a ski-brake and a device for attaching a boot to a gliding board which comprises a front retaining member, a rear retaining member, a connecting member between said front retaining member and said rear retaining member and a recoil spring exerting a force constraining said front retaining member to each other and said rear retaining element, characterized in that said connecting element and said recoil spring are aligned and in that said stop-ski brake comprises a first stop-ski half brake placed on a first side of the gliding board and a second half stop-ski brake placed on the other side of said gliding board so that a central channel is arranged between the first and second half-brake, in which said connecting element passes.

Advantageously, the connecting element is fixed longitudinally with respect to the front retaining element. It is also fixed longitudinally, but through the recoil spring to the rear retainer. Therefore, the longitudinal component of the constraints exerted by the shoe on the retaining elements are transmitted in the connecting element and do not pass into the gliding board.

Advantageously, the connecting element is a rigid element in tension and in compression, which has the effect of successively ensuring a pulling effect, when the ski flexes and a pushing effect, when the ski resumes its natural curvature.

Advantageously, the recoil spring is aligned with the connecting element. Consequently, during the bending phases of the ski, the forces that are transmitted from the connecting element to the rear retaining element do not have the effect of tilting the latter rearward but of doing so. translate in the slide.

Advantageously, the front and rear articulation means guarantee free rotation in the vertical plane of the connecting element with the front and rear retaining elements.

Advantageously, the support zones of the sole of the shoe that are the heel and the two half-bearings of the brake are arranged in such a way that a central channel is arranged, in which the connecting element passes and in which this The latter does not undergo any vertical restraint, which allows it to have a free swing both front and rear. Advantageously, when the shoe is in place, the connecting element is closer to the sole thereof.

Advantageously, the distance between the binding element and the sole of the shoe remains constant during the flexion of the gliding board and moreover this distance is optimized to be minimal. As it is known that the distance between the connecting element and the shoe is decisive in the efficiency of the pulling force recovery mechanism and the greater this distance, the more pivoting phenomena of the retaining elements will reduce this effectiveness we understand the interest of keeping the binding element closer to the shoe, and this at all times, including during the flexion of the gliding board.

All the advantages of the invention contribute to considerably improve the mechanism of recovery of the forces of attachment during the phases of "arrow-counterfleche" of the gliding board.

• La figure 1 est une vue en perspective d'un engin de glisse selon l'invention.
• La figure 2 est une vue en coupe longitudinale.
• La figure 3 est une vue de détail du premier moyen d'articulation.
• La figure 4 est une vue de détail du deuxième moyen d'articulation.
• La figure 5 est une vue de détail des freins.
• La figure 1 décrit un engin de glisse 1 selon l'invention. L'engin de glisse 1 comprend une planche de glisse 2 sur laquelle on a fixé une interface 3. L'interface 3 comprend une partie avant et une partie arrière. Un élément de retenue avant 4 est assemblé sur la partie avant de l'interface. Un élément de retenue arrière 5 est assemblé sur la partie arrière de l'interface. La présence de l'interface n'est pas une caractéristique limitative de l'invention car cette dernière peut être mise en oeuvre indifféremment avec ou sans interface.

The invention will be better understood on reading the following description to which is appended the drawing in which:

• Figure 1 is a perspective view of a gliding apparatus according to the invention.
• Figure 2 is a longitudinal sectional view.
• Figure 3 is a detail view of the first hinge means.
• Figure 4 is a detail view of the second hinge means.
• Figure 5 is a detailed view of the brakes.
• Figure 1 describes a gliding apparatus 1 according to the invention. The gliding apparatus 1 comprises a gliding board 2 on which an interface 3 has been fixed. The interface 3 comprises a front part and a rear part. A front retainer 4 is assembled on the front part of the interface. A rear retention element 5 is assembled on the rear part of the interface. The presence of the interface is not a limiting feature of the invention because the latter can be implemented indifferently with or without interface.

The stop-ski brake 28 is disposed between the front retaining element 4 and the rear retaining element 5. It consists of two half-brakes whose operation is independent of one another.

The connecting element 6 connects the front retaining element 4 and the rear retaining element 5. It passes between the two half-brakes without interfering with its operation. This connecting element 6 is rigid in traction and in compression.

Figure 2 shows a longitudinal sectional view of the gliding machine. The front retaining element 4 comprises a base 7 and a base 8 surmounted by a pivot 9. The body of the front retaining element 4 is pivotally mounted on the pivot 9. The construction details of the retaining element before 4 will not be described here in more detail because it is known mechanism. On the other hand we can replace the front retainer as described by any other front retainer.

The rear retainer 5 will also not be described in detail since it is a heel-type retaining element of known construction. In addition to the release spring (not shown in the drawings), the rear retainer 5 further comprises a recoil spring 23 which pressurizes the rear retainer against the rear of the boot and therefore also the front of the boot against the front retainer 4.

The connecting element 6 comprises a front rod 10, fixed on the first articulation means, and a rear rod 11. The front rod 10 and the rear rod 11 are connected coaxially to each other by a threaded bushing 12. The threaded sleeve allows the length adjustment of the connecting element 6. The whole of this connection has the particularity of being rigid in traction, but also in compression to prevent it from flaming during flexion of the gliding machine.

The rear rod 11 is retained in the heel spacer 13 of the rear retaining element 5 and can oscillate along a transverse axis.

The bead spacer 13 is placed inside the sheet body 14 of the rear retaining element 5.

FIG. 4 shows the details of the parts constituting the second articulation means 16 formed between the connecting element 6 and the rear retention element 5. For a better understanding, the various parts are represented in exploded perspective.

The rear rod 11 is inserted into an eyelet 20 formed at the base of the spacer 13. Behind the eyelet 20, a piece is threaded on the rear rod 11, it is the nose-spring-rest 21. The spring-nose support 21 is directly in contact with the heel spacer 13.

The nose-spring 22, and a recoil spring 23, are also threaded on the rear rod 11 The spring-nose support 21 has a groove 24 passing through the center of the circular opening which passes through it and into which is inserted the stem. The nose-spring 22 has a bead 25 complementary to the groove 24. The bead 25 as the groove 24 have common cylindrical surfaces capable of sliding relative to each other thus ensuring the pivoting of the rear rod 11 relative to at the heel spacer 13, that is to say with respect to the rear retention element 5.

The holding of the rear rod 11 in place in the eyelet 20 of the heel spacer 13 as well as the adjustment and the position of one relative to the other is done by means of a first support sleeve 17 which is screwed on the rear rod 11 in front of the eyelet 20, a support washer 18 being interposed between the first sleeve 17 and the eyelet 20, and a second support sleeve 19 screwed onto the end of the rod back to retain the recoil spring.

The second hinge means constituted by the eyelet 20 formed in the bead spacer 14, the spring-nose support 21 and the spring nose 22 allow a pivoting movement of the rear rod 11 of the connecting element. 6 with respect to the rear retention element 5.

The device is not limited to the described example of a connection made by an eyelet formed in the bead spacer and can also be realized with a pivot connection. The latter could be made with an axis passing through the spacer and the end of the rear rod.

Since the recoil spring 23 is threaded onto the connecting element 6, the stresses exerted by the boot on the rear retaining element 5, for example when the gliding board is in flexion, are retransmitted directly to the body. connecting element. The cantilever phenomenon that exists when the recoil spring is placed higher than the connecting element does not occur.

Figure 3 describes the details of the parts constituting the first hinge means. They comprise a ball 26 of spherical outer shape and placed in a ball-and-socket holder 27 having an inner cavity of complementary shape to the ball 26.

The ball-and-socket holder 27 is screwed to the end of the front rod 10 of the connecting element 6.

The ball 26 comprises a vertical bore traversed by a screw in order to fix it to the front retaining element 4.

The base 7 comprises an upwardly open housing 29 for receiving the ball-and-socket holder 27 as well as part of the front stem, which has the effect of guiding the front rod 10 in an oscillating movement which remains in the longitudinal plane. vertical sliding board.

The device is not limited to the described example of a ball joint and can also be realized with a pivot connection. The latter could be made with an axis passing through the base 7 and / or the base 8 and the end of the front rod 10.

Figure 5 shows the brake 28 in perspective, isolated from the rest of the device. It comprises a plate 30 provided to rest on the interface 3 and a heel 31 whose upper surface serves as a support for the sole of the shoe. The heel 31 comprises, in its upper zone, two separate parts, which separate parts constituting the two edges of a channel 32 oriented longitudinally. This channel 32 is intended to receive the rear rod 11 of the connecting element 6 and its vertical deflection necessary for double bending.

The brake 28 is characterized by a double mechanism of two independent half-brakes one of the other. Each of these half-brakes comprises a spade 33 at the end of which is fixed a nozzle 34. The spade 33 is a metal rod folded in two places by an angle of approximately 90 °, so as to define between these two folds a portion perpendicular to the rest of the stem. This perpendicular portion is held in place between the heel 31 and the plate 30. The two ends of the spade can thus be driven in a rotational movement about said perpendicular portion.

The lower part of the spade 33, the one equipped with the tip 34, will come during the rotational movement of the spade penetrate the snow. The upper part of the spade 33 is fixed in a half-bearing 35. The attachment of the spade 33 in the half-bearing 35 is achieved thanks to an additional fold of the upper end of the spade 33 in a direction parallel to that of said perpendicular portion. Thus the half-bearing 35 and the spade may have relative to each other a rotational movement.

A jumper also connects the plate 30 to the half-bearing 35. The jumper 36 is rotatably mounted relative to the plate 30 and relative to the half-bearing 35 so that at any time during the movement of the spade 33 a parallelogram is constituted by the rider 36, the half-bearing 35, the spade 33 and the plate 30.

The rotation of the jumper 36 relative to the plate 30 is between a low position in which the jumper is substantially parallel to the plate 30 and a high position where it is at a non-zero angle with the plate. The jumper 36 is held in the high position by the force of a brake spring 37.

The second half-brake is constructed in exactly the same way as the first half-brake that has just been described, but symmetrically with respect to the vertical longitudinal plane of the gliding board.

When the shoe is in place, the sole of the latter rests on the two half-bearings 35 and the weight it exerts there is sufficient to counter the force of the spring thus bringing the jumpers 36 and the half-bearings 35 in position low.

During a fall of the skier, causing the heaving, as soon as the shoe is released, the brake spring 37 immediately lifts the half-bearings 35 and releases the spades 33.

Advantageously, thanks to the introduction of two half-brakes whose operation is independent it is possible to provide between them, the passage for the connecting element. Therefore, it is possible to place the connecting element 6 closer to the sole of the boot, which ensures a better efficiency of the device for recovering efforts between the front and rear retention elements 4 and 5.

The invention is not limited to the single embodiment described above and it includes any equivalent embodiment.

NOMENCLATURE

1-

gliding gear

2-

gliding board

3-

interface

4-

front restraint

5-

rear restraint

6

connecting element

7-

base

8-

basement

9-

pivot

10-

front stem

11-

rear shank

12-

threaded bushing

13-

heel spacer

14-

sheet metal body

15-

first articulation means

16-

second means of articulation

17-

first support sleeve

18-

support washer

19-

second support sleeve

20-

eyelet

21-

Nose support spring

22-

nose spring

23-

recoil spring

24-

throat

25-

bead

26-

patella

27-

carrier ball

28-

stop-ski brake

29-

housing

30-

plate

31-

heel

32-

channel

33-

spade

34-

tip

35-

half-bearing

36-

rider

37-

brake spring

Claims (12)

Device for attaching a boot to a gliding board (2) having a front holding member (4), a rear holding member (5), a connecting member (6) between said front holding member (4) and said rear retaining member (5) and a recoil spring (23) exerting a force constraining said front retaining member (4) and said rear retaining member (5) towards each other, characterized in that said connecting element (6) and said recoil spring (23) are aligned, in that said connecting element (6) comprises articulation means with respect to said front retaining element (4) and / or said element of rear restraint (5) and in that said connecting element is a rigid element in tension and in compression, so as to successively provide a pulling effect, when the ski flexes and a pushing effect, when the ski resumes its natural curvature. Fastening device according to claim 1, characterized in that said connecting element (6) comprises a front rod (10), a rear rod (11) and length adjustment means. Fastening device according to one of claims 1 to 2, characterized in that it comprises a first articulation means (15) between said front rod (10) and said front retaining element (4), consisting of a ball joint (26) attached to the end of said front rod (10). Fastening device according to one of claims 1 to 3, characterized in that it comprises a second articulation means (16) between said rear rod (11) and said rear retaining element (5) constituted by an eyelet ( 20) formed in said rear retaining element (5) through which said rear rod (11) passes. Sliding apparatus (1) comprising a gliding board (2) equipped with a fixing device according to one of claims 1 to 4. Gliding device according to claim 5, characterized in that it comprises a stop-ski brake (28) placed between said front retaining element (4) and said rear retaining element (5) and in that said brake-stop brake ski (28) comprises a first half-brake stop-ski placed on a first side of the gliding board and a second stop-ski brake placed on the other side of said gliding board. Sliding apparatus (1) comprising a gliding board (2) equipped with a stop-ski brake (28) and a device for attaching a boot to a gliding board (2) which comprises a retaining element before (4), a rear retaining element (5), a connecting element (6) between said front retaining element (4) and said rear retaining element (5) and a recoil spring (23) exerting a force forcing said front retaining element (4) and said rear retaining element (5) towards each other, characterized in that said connecting element (6) and said recoil spring (23) are aligned and in that said ski brake (28) includes a first half ski brake arranged on a first side of the gliding board and a second half ski brake placed on the other side of said gliding board so that a canal central is arranged between the first and the second half-brake, in which passes said connecting element. Sliding apparatus (1) according to claim 7, characterized in that said connecting element (6) comprises articulation means with respect to said front retaining element (4) and / or said rear retaining element (5). Gliding device (1) according to claim 8, characterized in that said connecting element is a rigid element in traction and in compression, so as to successively provide a pulling effect, when the ski flexes and a pushing effect, when the ski resumes its natural curvature. Sliding apparatus (1) according to claim 9, characterized in that said connecting element (6) comprises a front rod (10), a rear rod (11) and length adjustment means. Gliding device (1) according to claim 10, characterized in that it comprises a first articulation means (15) between said front rod (10) and said front retaining element (4), constituted by a ball joint (26). ) fixed to the end of said front rod (10). Gliding device (1) according to claim 10, characterized in that it comprises a second articulation means (16) between said rear rod (11) and said rear retaining element (5) constituted by an eyelet (20) formed in said rear retaining element (5) through which said rear rod (11) passes.

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