EP2080541B1 - Device for retaining and adjusting the longitudinal position of a binding on a snowboard - Google Patents

Description

The present invention relates to a device for retaining and adjusting in longitudinal position of a binding on a snowboard on snow such as a ski or the like.

In a manner known per se, the boot of the skier, in the case of a so-called alpine type ski, is held on the ski so as to be triggerable, by its front end, by a front safety fastener commonly called a "stop" and, its rear end, and in particular its heel, thanks to a rear safety fastener commonly called "heel".

It is known that, for good skiing, the boot must, in a position of restraint on the ski, be in a precise and precise longitudinal position on the ski, to allow proper skiing practice. Thus, the manufacturers affix in the manufacture of skis to make a marking, which must correspond to the middle of the sole of the shoe, when it is retained on the ski. Similarly, ski boot manufacturers indicate by marking the middle of the shoe. When mounting the ski bindings, the front and rear bindings must be fixed to the ski in determined longitudinal positions, so that the middle of the shoe matches the marking made on the ski.

Manufacturers have developed adjustment means, particularly for the rental market, allowing the trader or the user to adjust the position of the fasteners.

Thus, and in a manner known per se, the fasteners comprise a base mounted to slide longitudinally on a solidarity support piece. ski, said base comprising a movable latch for example vertical displacement, which can move up and down, and vice versa, while it is biased by an elastic system, its unlocking position (high position) towards its locking position (low position) in which it cooperates with the support piece, said lock comprising a toothing intended to cooperate with a corresponding toothing made in the support piece.

Such devices are for example described in the patent applications FR 2614545 , FR2870750 , FR2906156 , and the patent US 5913532 . It was understood that the lock was subjected to strong longitudinal stresses due to the action of the thrust springs and that the bearing surface of the teeth in correspondence had to withstand these constraints. Consequently, it is necessary to dimension the lock accordingly, or to use an appropriate material, but in certain cases this is not possible, in particular for dimensional reasons, such as, for example, for not very wide fasteners intended for children, or for reasons of economy.

The previous document EP 1 321 172 , proposes a device for adjusting the longitudinal position of a ski binding according to which the slideway has a central cutout whose left and right teeth are not offset, while the movable lock has left and right teeth offset, c which allows to refine the setting.

The present invention aims to solve the disadvantages of adjustment devices known to date by providing a simple and reliable device, which allows to use a small width attachment which is particularly interesting for fasteners for children

Thus, the device for retaining and adjusting in longitudinal position a fixing on a ski of the invention, for fixing detachably and adjustably on the upper surface of said ski, and in a given longitudinal position, said fastening comprising a base slidably mounted longitudinally on a support piece integral with the ski, said base comprising a movable latch in vertical displacement to be able to move upwards and downwards, and vice versa, while it is biased by an elastic system, unlocking position (position high), towards its locking position (low position) in which it cooperates with the support part, while the central part of the support part constituting the sliding slide for fixing comprises a longitudinal central cut or a recessed profile, which comprises a vertical toothing intended to cooperate with a corresponding toothing of the movable latch mounted on the base of the corresponding fastening, said toothing made in the support part being constituted by two opposite lateral toothing, a row of left toothing and a row of right teeth. , characterized in that the two lateral toothings of the support piece are offset longitudinally with respect to each other, so that at each of the projecting teeth of one of the rows of teeth is found in look at a recessed profile area, and vice versa, to each of the recessed profiles of one of the rows there is opposite a projecting area e corresponding.

According to the preferred embodiment, the two lateral teeth of the lock are offset longitudinally with respect to each other, by one step, so that each of the projecting teeth of one of the rows of teeth are found opposite a recessed profile, and vice versa, to each of the recessed profiles of one of the rows there is opposite a corresponding protruding tooth.

According to a complementary feature, the latch comprises two lateral teeth which are offset longitudinally with respect to each other so that each of the teeth projecting inwardly there is opposite and symmetrically a hollow profile zone. and to each of the hollow profiles, there is facing and symmetrically a projecting profile area.

According to a complementary feature, the two lateral teeth of the lock are offset longitudinally with respect to each other by one step, so that at each of the teeth projecting inwards, there is look and symmetrically a recessed profile and each of the recessed profiles, there is facing and symmetrically a projecting profile.

According to another characteristic, the width of the lock is less than or equal to three times the half support dimension.

Let us add that the support piece is an independent piece fixed to the ski, or is an integral part of the ski.

The invention also relates to the ski equipped with the device.

• La figure 1 est une vue latérale d'un ski équipé des fixations de retenue de la chaussure avant et arrière, comprenant le dispositif de l'invention, la chaussure étant en position retenue de pratique du ski.
• La figure 2 est une vue d'ensemble en perspective montrant la pièce support servant de glissière et ses dentures destinés à coopérer avec les dentures du verrou mobile correspondant.
• La figure 3 est une vue de dessus schématique montrant les dentures de la glissière selon l'art antérieur.
• La figure 4 est une vue de dessus schématique montrant les dentures de la glissière selon l'invention.

Other features and advantages of the invention will become apparent from the description which follows with reference to the accompanying drawings which are given by way of non-limiting examples.

• The figure 1 is a side view of a ski equipped with the retaining fasteners of the front and rear shoe, comprising the device of the invention, the shoe being in the ski practice of holding position.
• The figure 2 is an overall perspective view showing the support piece serving as slide and its teeth for cooperating with the teeth of the corresponding movable lock.
• The figure 3 is a schematic top view showing the teeth of the slide according to the prior art.
• The figure 4 is a schematic top view showing the teeth of the slide according to the invention.

As it appears in figure 1 , the boot (1) of the skier is held on the ski (2) triggerably, by its front end (3), by a forward safety fastening (4) commonly called "stop" and, by its rear end, and in particular its heel (5), thanks to a rear safety fastener (6) commonly called "heel".

The boot (1) must, in the retaining position on the ski, be in a longitudinal position (Pc) determined on the ski. This position must be such that the middle of the sole (Mc) corresponds to a marking (Ms) usually made on the ski (2) by its manufacturer.

The invention relates to the device for fixing one or the other of the fasteners before (4) and / or rear (6) on the upper surface (7) of the ski (2), and in a given longitudinal position (Pb, Pt) adapted to the length of the sole of the boot (1), namely, in a determined longitudinal position (Pb) for the stop (4), and in a determined longitudinal position (Pt) for the heel piece ( 6), the positioning of the shoe between the two fasteners (4, 6) allowing the correspondence of the two markings (Mc and Ms), as illustrated in FIG. figure 1 .

Thus, one or the other, see each of the fasteners (4, 6) comprises the retaining device of the invention, which comprises means for setting longitudinal position on the ski and retaining in the chosen position, adequate .

The device of the invention is constituted by a support piece (8) attached to the upper surface (7) of the ski (2) for retaining the one or more fasteners (4, 6) in a specific position. In other words, the attachment (4, 6) is slidably mounted on the support piece to be retained after adjustment in position, in a given longitudinal position.

For this purpose, the fastener (4, 6) cooperates with the support piece by means of a slide and slide system, while the said attachment comprises a movable latch intended to cooperate with complementary means made on the support piece.

Thus, the support piece (8) comprises in a known manner, a slide in which the attachment and for example its base (9) is intended for slide, whose lower part is of complementary shape. Of course, the support piece (8) extending longitudinally is either an independent piece attached to the ski is an integral part of the ski.

Note also that the central part of the support piece (8) constituting the sliding slide for fixing (4, 6) comprises a longitudinal central cut (10) or a hollow profile, which comprises a vertical toothing (11a, 11). intended to cooperate with a corresponding toothing (13a, 13b) of a movable latch (12) mounted on the base (9) of the corresponding fastener.

Said movable latch (12) is movable vertically in the base (9) to move upwardly (HA) and downward (BA), and vice versa. Thus the movable latch (12) is urged by an elastic system (14), from its unlocking position (upwards), to its locking position (downwards) in which its corresponding toothing (13a, 13b) co-operates with the toothing (11a, 11b) of the slide (8).

According to the embodiment illustrated by way of example, each of the two lateral edges facing the longitudinal central cutout (10) comprises a toothing (11a, 11b) consisting of a row of teeth, while the movable latch (12) also includes two side teeth (13a, 13b).

The movable latch (12) is intended to lock the base (9) of the fastener, in a given longitudinal position relative to the support piece (8), by the cooperation of its teeth (13a, 13b) with the teeth. (11a, 11b) of the longitudinal central cutout (10) of the support piece (8).

The present invention is a geometric configuration of the teeth (13a, 13b) of the movable latch and the corresponding teeth (11a, 11b) of the slide. Thus the cut made in the slide is such that its curbs each comprise a toothing to form two opposite teeth, a left toothing (11a), and a right toothing (11b).

According to the prior art illustrated in figure 3 , the two opposite teeth (11a, 11b) of the slideway are perfectly symmetrical with respect to the longitudinal vertical plane (P). Thus, with each of the teeth projecting inwards, there is symmetrically facing a corresponding tooth projecting and each of the hollow intermediate profiles, there is facing and symmetrically a corresponding intermediate hollow profile.

According to the invention the two lateral teeth (11a, 11b) are offset longitudinally with respect to each other and advantageously one step. Thus, with each of the teeth projecting inwards, there is symmetrically opposite and a hollow profile and each of the recessed profiles, there is opposite and symmetrically a corresponding tooth.

Of course, it is the same for the teeth of the lock so that there is correspondence. Thus, the two lateral teeth of the latch (13a, 13b) are offset longitudinally with respect to each other and advantageously a step. Thus, with each of the teeth projecting inwards, there is symmetrically opposite and a hollow profile and each of the recessed profiles, there is opposite and symmetrically a corresponding tooth.

Note that each of the teeth that it is, that of the slide and that of the lock, is constituted by a succession of projecting teeth, separated by a recessed profile.

It has been understood that thanks to this arrangement for the same dimension of lesser width (L1) made in a cross section (T) and the same support dimension (a + a) the width of the lock (L'2) and therefore of the cut central (10) or hollow profile is less than the width (L2) of the geometry of traditional teeth.

Add that the width (L'2) could advantageously be less than or equal to three times the half support dimension (a + a).

Note also that the longitudinal offset of the two lateral rows is advantageously equal to one step, but it could be otherwise. Thus, two lateral toothings (11a, 11b) of the slideway are offset longitudinally with respect to each other, so that each of the projecting teeth of one of the rows of teeth (11a) there is opposite a hollow profile area, and vice versa, each of the recessed profiles of one of the rows there is opposite a projecting protruding profile region corresponding projection.

Of course, the invention is not limited to the embodiments described and represented by way of examples, but it also includes all the technical equivalents as well as their combinations.

Add that the support part is advantageously made of plastic and the central cut is made directly in the slide.

Note that the support piece (8) serving as a slide could not be performed by an independent piece attached to the ski as illustrated but be an integral part of the ski.

Claims (6)

1. Device for retention and adjustment of the longitudinal position of a holding device (4 or 6) on a ski (2) which makes it possible for the holding device to be secured detachably and adjustably on the upper surface (7) of the said ski (2), in a specific longitudinal position (Pb, Pt), the said holding device comprising a base which is fitted such as to slide longitudinally on a support part (8) which is integral with the ski (2), the said base comprising a lock (12) which is mobile in displacement, the latter comprising toothing (13a, 13b) which is designed to co-operate with corresponding toothing (11a, 11b) of the support part (8), characterised in that the lock (12) is mobile vertically in order to be able to be displaced upwards (HA) and downwards (BA) and conversely, whilst it is being thrust by a resilient system (14a, 14b, 14c) from its release position (high position) to its locking position (low position) according to which it co-operates with the support part, whereas the central part of the support part (8) which constitutes the sliding guide for the holding device (4, 6) comprises a longitudinal central cut-out (10) or a hollow profile, which comprises vertical toothing (11a, 11b) which is designed to co-operate with corresponding toothing (13a, 13b) of the mobile lock (12) fitted on the base of the corresponding holding device, the said toothing provided in the support part (8) being constituted by two opposite lateral sets of toothing, i.e. a left-hand row of toothing (11a) and a right-hand row of toothing (11b), the two lateral sets of toothing (11a, 11b) of the support part (8) being offset longitudinally relative to one another, such that each of the teeth projecting from one of the rows of teeth (11a) is opposite an area with a hollow profile (Zc), and, conversely, opposite each of the hollow profiles of one of the rows there is a corresponding projecting area (Zs), whereas the lock comprises two lateral sets of toothing (13a, 13b) which are offset longitudinally relative to one another so that, opposite, and symmetrically relative to each of the teeth which project towards the interior there is an area with a hollow profile, and opposite, and symmetrically relative to each of the hollow profiles there is an area with a projecting profile.
2. Retention device according to claim 1, characterised in that the two lateral sets of toothing (11a, 11b) of the support part (8) are offset longitudinally relative to one another by one step, such that opposite each of the projecting teeth of one of the rows of teeth (11a) there is a hollow profile, and, conversely, opposite each of the hollow profiles of one of the rows there is a corresponding projecting tooth, and the two lateral sets of toothing (13a, 13b) of the lock are offset longitudinally relative to one another by one step, so that opposite and symmetrically relative to each of the teeth which projects towards the interior there is a hollow profile, and opposite and symmetrically relative to each of the hollow profiles there is a projecting profile.
3. Device according to either of the preceding claims, characterised in that the width (L'2) of the lock (12) is smaller than, or equal to, three times half the support dimension (a + a).
4. Device according to any one of the preceding claims, characterised in that the support part (8) is an independent part which can be secured to a ski.
5. Device according to any one of claims 1 to 3, characterised in that the support part is a part which is not independent from the ski, but forms an integral part of the ski.
6. Ski (2), characterised in that it comprises the device according to any one of the preceding claims.

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