EP1656974B1 - Device for mounting safety binding parts on a ski - Google Patents

Abstract

The device has two units, each receiving a safety binding unit and each mounted on a longitudinal strip (2) to adjust its longitudinal position by sliding in guides (10). Several mounting points (20-23) for mounting the strip on an upper surface of a ski allow a longitudinal displacement of a zone of the strip related to the surface. Bases (4, 7) contacting the surface extends over a width greater than the width of the strip.

Description

Technical area

The invention relates to the field of snow sports, especially Alpine skiing. It relates more specifically to a mounting device on a ski elements of a safety binding, namely the heel and the stop.

Previous techniques

In general, many solutions have already been proposed, to allow the mounting of the elements of the binding not directly on the upper face of the ski, but on an intermediate device. This type of intermediate device can be used for several purposes. Thus, for skis for rental, it is interesting that the fasteners have a longitudinal adjustment capability, and the use of an intermediate device avoids making multiple holes on the upper face of the ski. Such a capacity of adjustment is described in particular in the document FR 2 820 335 .

The intermediate devices also make it possible to raise the binding, and to facilitate the tilting of one edge to the other, as described in the document EP 0 409 749 , as well as in WO 93/12845 A2 .

From a mechanical point of view, these intermediate devices are also used to ensure debridement, that is to say, to limit the influence of the stiffness of the sole of the boot on the behavior of the ski

The phenomenon of debridement is relatively complex, since it is necessary to ensure a good anchoring of the elements of the binding, but without modifying too strongly the intrinsic stiffness of the board. This is why solutions have already been proposed in which a plate of viscoelastic material is placed under the platform, as illustrated in the document FR 2,664,823 .

In other solutions, and in particular that described in the document FR 2 809 634 , a part of the platform can be made movable relative to the upper face of the ski, being mounted with a sliding capacity relative to a fixed point integral with the upper face of the ski.

Presentation of the invention

The invention therefore relates to a device for mounting the elements of a safety binding on a ski.

• ■ une poutre longitudinale présentant de chaque côté une glissière interrompue au niveau médian ;
• ■ deux équipages destinés à recevoir chacun un des éléments de la fixation de sécurité, chaque équipage étant monté sur ladite poutre avec capacité de réglage en position longitudinale par coulissement dans lesdites glissières ;
• ■ une pluralité de points de montage de la poutre longitudinale sur la face supérieure du ski, une fraction de ces points autorisant un déplacement longitudinal, par rapport à la face supérieure du ski, de la zone de la poutre longitudinale dans laquelle ils sont disposés ;
• ■ une embase destinée à venir au contact de la face supérieure du ski, et sur laquelle repose ladite poutre longitudinale, ladite embase s'étendant sur une largeur supérieure à celle de ladite poutre longitudinale, ladite embase présentant à ses extrémités des zones proéminentes recevant une pièce dont la partie arrière est élastiques et apte à être comprimée par l'extrémité de la poutre longitudinale qui lui vient en contact.

According to the invention, this device comprises:

• ■ a longitudinal beam having on each side a slideway interrupted at the median level;
• ■ two crews intended to each receive one of the elements of the safety fastening, each crew being mounted on said beam with slidable longitudinal adjustment capacity in said slides;
• A plurality of mounting points of the longitudinal beam on the upper face of the ski, a fraction of these points permitting a longitudinal displacement, with respect to the upper face of the ski, of the zone of the longitudinal beam in which they are arranged;
• A base intended to come into contact with the upper face of the ski, and on which said longitudinal beam rests, said base extending over a width greater than that of said longitudinal beam, said base having at its ends protruding zones receiving a piece whose rear portion is resilient and able to be compressed by the end of the longitudinal beam that comes into contact with it.

In this way, it is very easy to adjust the position of the stop and heel, by acting on the position of each crew. This setting is particularly significant for skis used as rental equipment, requiring an adaptation of the two elements of the binding according to the size of the shoe.

The assembly of each crew, or possibly its replacement, are possible through the interruption of the slide at the median level of the beam, to uncouple each crew of the beam.

It should be noted that the displacement of each of these crews makes it possible to have access to the mounting points of the beam on the ski so as to modify the manner in which this beam is secured to the ski.

These mounting points are configured so as to allow the relative displacement of a portion of the beam relative to the upper face of the ski, during the bending of the latter, and this depending on the behavior that is to be given to the board.

The relative displacement of the beam relative to the ski can be damped by the presence of the base interposed between the beam and the upper face of the ski.

In practice, the slide on each side of the beam, can be achieved in different ways. Thus, the slide can be formed by grooves formed on each side face of the beam. Alternatively, a rail formed on the side face of the beam allows to define with the upper face of the board a slide, in which is embedded a fraction of each moving assembly.

Similarly, the characteristic beam can be realized in different ways. Thus, the beam may be monobloc, that is to say constitute a single piece extending over the entire length of the mounting area of the fastener. Alternatively, this beam may be formed of two distinct portions, namely a front portion and a rear portion separated at the interruption of the slide. In other words, in this variant, each crew is mounted on a specific portion of the beam, and the slide is naturally interrupted at the separation of the two portions of the beam. This interruption of the slide can extend over a distance greater than that between the two portions of the beam, to allow the introduction of the crews receiving the elements of the binding.

In a complementary manner, so as not to increase too much the general stiffness of the ski equipped with the device according to the invention, the platform may advantageously have a set of transverse recesses, formed on its lower face, at its median level, and intended to reduce its stiffness in flexion.

In practice, the longitudinal position of each crew can be adjusted by various means, and in particular by cooperation of a mechanism present on the crew, and notched arrangements present on the longitudinal beam.

Advantageously in practice, to allow unclamping of the platform with respect to the ski, a portion of the mounting points may be formed by longitudinally elongated holes traversed by members of lesser section. In this way, the zone of the beam comprising these bores can move relative to the organ that passes through it.

Advantageously in practice, it is possible to provide the mounting points in four different longitudinal levels, with different configurations concerning the points having a certain mobility. Thus, it is possible to fix the beam fixedly at the central points, while the extremal points are, for their part, free to translate with respect to the board. In another variant, the front of the beam can be held fixed relative to the ski, while the rear portion has a displacement capacity.

As already mentioned, the base interposed between the beam and the ski can be made of an elastic material, or even viscoelastic, so as to deform during the bending of the ski, and in some cases to dispel by these elements a part of the kinetic energy relative to this movement.

This base can adopt different geometries. It can be monobloc, and form a plate extending over the entire length of the beam. It can also be divided into two parts, in the longitudinal direction, or in the transverse direction, or in both, so as to form independent blocks, interposed under the front and under the back of the ski, on one side and / or the other.

Brief description of the figures

• La figure 1 est une vue en perspective sommaire et éclatée des différents éléments constituant un dispositif réalisé conformément à l'invention.
• La figure 2 est une vue en perspective sommaire de la plate-forme et de l'embase correspondantes associées, montrée de dessus.
• La figure 3 est une vue en perspective sommaire de l'ensemble de la figure 2 montrée vue de dessous.
• La figure 4 est une vue similaire à la figure 1, montrant une variante de réalisation.
• Les figures 5 et 6 sont des vues en perspective sommaire respectivement de dessus et de dessous d'un premier type d'éléments assurant le montage du dispositif sur le ski.
• Les figures 7 et 8 sont des vues analogues aux figures 5 et 6 d'un second type d'éléments de montage.

The manner of carrying out the invention as well as the advantages which result therefrom will emerge from the description of the embodiment which follows, in support of the appended figures in which:

• The figure 1 is a perspective view summary and exploded of the various elements constituting a device made according to the invention.
• The figure 2 is a brief perspective view of the associated platform and associated base, shown from above.
• The figure 3 is a brief perspective view of the entire figure 2 shown from below.
• The figure 4 is a view similar to the figure 1 , showing an alternative embodiment.
• The Figures 5 and 6 are summary perspective views respectively from above and from below of a first type of elements ensuring the mounting of the device on the ski.
• The Figures 7 and 8 are views similar to Figures 5 and 6 a second type of mounting elements.

Way of realizing the invention

As illustrated in figure 1 , the device according to the invention consists of different elements, namely a beam (2) intended to be mounted on the upper face of the ski (3) resting on a base (4, 7), so as to receive a rear crew (5) adapted to receive the mounting heel (not shown), and a front crew (6) adapted to receive the stop of the attachment (not shown).

More precisely, the longitudinal beam (2) is either in the form of an element based on a metal profile, for example, subsequently machined, or again from a molded part, for example made of plastic material in order to give it some rigidity.

This longitudinal beam (2) laterally comprises rails, constituted in the form illustrated by rails (10) defining between the upper face of the ski (3) and said rail a groove (11), in which penetrating elements protruding on the face crews (5, 6).

This slide (10) is interrupted at the median level of the platform to define a recess (13) intended to allow the establishment of the crews (5, 6).

In the form shown, the beam (2) rests on a base consisting of two elements (4, 7). These elements (4, 7) can be made from a rigid material, to promote the transmission of vertical forces. They can also be made from a viscoelastic material to partially damp the displacement of the longitudinal beam relative to the upper face of the ski.

In the form shown, this base consists of two separate elements and receiving for one, the front, and the other the back of the beam (2). More precisely, each stud (4,7) comprises in the central part a portion (15) of lesser thickness. This portion (15) is used to mechanically connect the two side portions of the stud (4,7) which receive the support of the beam (2), to facilitate handling of the stud during assembly. This portion (15) is not in contact with the upper face of the ski, and the stud (4,7) comes into contact with the upper face of the ski only by the two lateral zones (8,9,18,19 ), for the direct transmission of forces to the edges.

However, the invention also covers variants in which these two elements are assembled and form one. Other variants may also be envisaged in which the base is formed of two elements separated by a longitudinal space, each element receiving the supports on one side of the platform. It is also possible to have a base in four elements by combining these two variants.

In the form shown, the pads forming the base have in their forward ends protruding areas, intended to receive by a part (16) whose rear portion (17) is elastic, or even viscoelastic. This elastic element (17) is compressed by the rear end of the beam when the latter moves under the effect of the bending of the ski.

As illustrated in Figures 2 and 3 , the base formed of the studs (4,7) extends laterally over a width greater than that of the beam (2), in order to promote the lateral stability of the assembly, and the transmission of the vertical forces towards the edges.

In the variant embodiment illustrated in figure 4 , the beam is composed of two distinct portions (40,41), which are each arranged to receive a crew (5,6) on which will be mounted a fastener (not shown). More specifically, the two front portions (40) and rear (41) of the beam each comprise a portion of the slide (42,43), delimited in the same manner as for the beam described above. The two fractions (42,43) of slides are arranged in the extension of one another, on the same side of the beam. In the illustrated form, the slide (43) of the rear portion (41) of the beam is interrupted before the front end (45) of this portion (41). The same construction may be retained for the rear end (44) of the front portion (40) of the beam, with a slide (42) that begins further than the rear end zone (44) of the portion (40) of the beam. beam. Sufficient space is created to allow the establishment of crews (5,6) during mounting of the binding. The base (53) supporting the beam also has a necking (52) in line with the passage zone of the crews receiving the binding.

In the form illustrated in figure 4 , the two portions (40,41) of the beam are arranged on a central rail (54) formed at the median longitudinal level of the base (53). These two portions (40,41) span this rail (53) through a central recess (56), which allows a good lateral positioning when mounting the assembly on the ski.

With reference to the figure 1 , the beam (2) is fixed on the ski at several mounting points in the parts at different longitudinal levels of the ski. More precisely, this assembly is done at four distinct zones (20, 21, 22, 23). The mounting at the intermediate zone (21) is made without any sliding latitude, by means of screws penetrating into holes of the same diameter.

With regard to the other three mounting regions (20, 22, 23), a through recess is formed in the beam. This recess comprises an upper portion (25) whose faces are inclined, and a lower portion opening on the underside of the beam (2). These opening openings are substantially elongate in the longitudinal direction (26). These recesses (20, 22, 23) are intended to receive mounting pieces (30, 32, 33) which are of two different types, and illustrated in more detail in the drawings. Figures 4 to 7 .

Thus, and as illustrated in figures 4 and 5 the workpiece (32) has an upwardly flaring upper portion (35) and having the same volume as the upper portion (25) of the recess (20). The lower part of the lower piece (36) of the piece (32) for its part also has a volume substantially identical, with the clearance, to the opening opening (26) of the recess (20).

In this way, when the piece (32) is placed in the recess (22), the inclined faces (37) of the piece (32) come into contact with the inclined faces of the recess (22), and ensure therefore a block in position of the zone of the beam in which it is implanted.

Conversely, the part (30) illustrated in Figures 6 and 7 has smaller dimensions. Thus, this upper portion (38) also has inclined faces, but the overall volume of this upper portion (38) is smaller than that of the recess (20).

Additionally, the barrels (39) forming the lower part of the piece (30) are also smaller in diameter than the longitudinal dimension of the openings (26) of the recess (20). In this way, the mounting point formed by the piece (30) prevents lateral or vertical movement of the zone of the beam (2) in which it is installed. On the other hand, a longitudinal movement latitude exists, and is put to use during the bending of the ski.

In its upper part, the beam (2) is intended to receive the two crews (5, 6) arranged to accommodate respectively the heel and the abutment of the not shown fastener. To do this, the front crew (6) has a substantially flat upper face, equipped with mounting holes of the stop. The crew (6) has lateral zones (46) whose internal faces have arrangements intended to cooperate with the slide or the rail (10) of the beam (2). These arrangements extend over a length that is less than the length of the recess (13), to allow the establishment of the crew, and possibly its removal.

On its upper face, the beam (2) has a recess (47) for receiving a notched plate (48). This plate (48) cooperates with a not shown mechanism located overflowing under the lower face of the front crew (6), so as to allow adjustment in longitudinal position of the crew (6) after sliding on the beam (2) .

Complementarily, the rear crew (5) also has portions (51) extending laterally, and having on their inner faces arrangements for sliding in the slide (10). The same adjustment mechanism system using a toothed plate (58) can be implemented.

More specifically, the mechanism disposed under the crew (5) consists of a flexible plate (59), fixed under the crew (5) by means of a rivet (60), and held in the low position by a spring (61). In this way, the lateral notches (62) of this plate (59) cooperate with the notches (63) of the plate (58). A force on the rear part of the plate (59) ensures the lifting, and the clearance of the notched zones (62, 63).

In the illustrated form, the crew (5) has on its upper face a complementary slide, which can accommodate the movable portion of the heel. However, the invention also covers variants in which the entirety of the heel is screwed onto a substantially flat rear crew.

• une multiplicité de réglage de raideur du ski par le blocage de la poutre sur la planche selon différents modes;
• une multiplicité de transmissions des efforts sur le ski par le choix de la forme de l'embase
• une grande facilité de montage;
• une capacité de réglage en position de chaque élément de la fixation;
• un bon transfert des appuis.

The device according to the invention combines the following advantages:

• a multiplicity of stiffness adjustment of the ski by locking the beam on the board according to different modes;
• a multiplicity of transmissions of efforts on the ski by the choice of the form of the base
• great ease of assembly;
• an adjustment capacity in position of each element of the fastener;
• a good transfer of supports.

Claims (12)

1. A device (1) for mounting the components of a safety binding on a ski, comprising:

   ■ a longitudinal strip (2) that has, on either side, a guide (10) with a break in its middle;

   ■ two units (5, 6) each intended to accommodate one of the components of the safety binding, each unit being mounted on said strip (2) with the possibility of adjusting its longitudinal position by sliding in said guides (10);

   ■ a plurality of points (20-23) for mounting the longitudinal strip (2) on the upper surface of the ski, some of these points (20, 23) allowing longitudinal displacement, relative to the upper surface of the ski, of the area of the longitudinal strip in which they are located;

   ■ a base (4, 7) intended to come into contact with the upper surface of the ski and on which said longitudinal strip (2) rests, said base extending over a width in excess of that of said longitudinal strip,

   characterised in that said base has on its ends, protruding areas receiving a part (16), the rear part (17) of which is elastic, and able to be compressed by the rear end of the longitudinal strip with which comes in contact.
2. A device as claimed in claim 1, characterised in that the guide is formed by a groove on the lateral surface of the longitudinal strip.
3. A device as claimed in claim 1, characterised in that the guide is formed by a rail (10) on the lateral surface of the longitudinal strip (2).
4. A device as claimed in claim 1, characterised in that the strip (2) is of one-piece construction.
5. A device as claimed in claim 1, characterised in that the strip is formed from two separate pieces, namely a front piece (40) and a rear piece (41) that are separated where there is the break in the guide (42, 43).
6. A device as claimed in claim 1, characterised in that the longitudinal strip (2) has an area of reduced flexural stiffness in its middle.
7. A device as claimed in claim 1, characterised in that the longitudinal position of each unit (5, 6) can be adjusted through cooperation of a mechanism (59) on the unit and notched features (58) on the longitudinal strip.
8. A device as claimed in claim 1, characterised in that some of mounting points (20, 23) are formed by longitudinally elongated holes through which components (30, 33) having a smaller cross-section pass.
9. A device as claimed in claim 1, characterised in that mounting points (20-23) are arranged at four distinct longitudinal levels.
10. A device as claimed in claim 1, characterised in that the base (4, 7) is made of an elastic material.
11. A device as claimed in claim 1, characterised in that the base is formed by at least two longitudinally separated pads.
12. A device as claimed in claim 1, characterised in that the base is formed by at least two transversely separated pads (4, 7).

Images