EP3034139A1 - Boot retaining device on a gliding board - Google Patents

Abstract

The invention relates to a device for retaining a boot on a gliding board comprising a lower base (E) intended to be secured to the board and receiving the boot and at least one upper link (1) ensuring the closing of the device. being, on the one hand, secured to the base and, on the other hand, locked on a central lug (2) bearing on said shoe, in the locking position, characterized in that said central lug comprises an inner piece (21) carrying at least one projecting element (23) engaging in a corresponding orifice (20) formed through an outer piece (22) forming a loop (30) for said link.

Description

The invention relates to a device for retaining a boot on a gliding board.

More specifically, the invention relates to an improvement of the closure system of such a device.

The devices for retaining the shoes on the gliding or surf boards generally comprise a rigid lower base intended to be secured to the board and receiving the boot and at least one upper link (such as a strap or a rack), integral with the base which is locked bearing on the shoe by means of a clamping member to ensure the closure of the device.

A device of this type is described, in particular, in the FR 2 774 302 and the EP 1 935 460 wherein the base is provided with sets of straps whose length-adjustable sections are locked on a central connecting lug carrying a clamping member and also forming a cushion bearing on the upper part of the boot.

In these embodiments, it happens that after adjustment, locking and tightening straps, their end portions have an excess length that protrudes from the top of the shoe being likely to cause discomfort for the user .

In the FR 2 820 049 and the US 6,926,302 this length of excess strap or rack is housed in a sheath or duct formed in the thickness of the central connecting lug while, in the EP 793983 , the excess length is immobilized in a loop in the manner of a belt.

However, these prior solutions are not satisfactory because the structure of the central leg is too thin to allow to spare a sheath in its thickness.

Even if the realization of a sheath is possible, the manual engagement of the strap in this sheath is delicate, especially with the use of gloves.

In the particular case of the document EP 793983 this tab is formed of several parts assembled to each other. The rigidity of the central leg is then excessive and affects the comfort of the user and the firm maintenance of the shoe.

In addition, the method of fixing the different parts together is complex.

According to the embodiments of the known devices, the links can also be made in different materials whose rigidity is more or less important (for example, a more or less hard thermoplastic rack or a flexible textile strap). which conditions the form and the structure of the means likely to immobilize its surplus length.

STATEMENT OF THE INVENTION

The aim of the invention is to solve the technical problems posed by the prior art and, more specifically, to propose a solution making it possible to minimize the number of component parts of the central lug as well as its overall height and to facilitate the assembly of these components. different parts and the recovery of the excess length of the link after its adjustment.

This object is achieved according to the invention by means of a device characterized in that the central lug comprises an inner part carrying at least one projecting element which engages in a corresponding orifice formed through an external part made of forming a passer for the link.

Preferably, the projecting element is elastically deformable.

According to a first advantageous variant, the projecting element is a lug comprising two substantially perpendicular branches, the end branch extending remotely and substantially parallel to said outer part to delimit said passer for housing the link.

According to an advantageous characteristic, the end branch connects to the inner part via an intermediate branch passing through the orifice arranged on the outer part.

According to a specific variant, the inner part carries at least one series of projecting elements grouped in pairs and whose free ends come in pairs facing each other.

Preferably, the inner part carries two series of projecting elements, each cooperating with a lateral link blocked on either side of said central leg.

According to an advantageous characteristic, the free ends facing these projecting elements delimit a slot whose width is less than the width of the link.

According to another variant, the projecting element is in the form of a bridge whose end branch is connected by its ends, respectively, to two intermediate branches.

According to another feature, the outer part forms a reinforcement and is of greater rigidity than the inner comfort room.

According to yet another variant, the inner part carries, in addition, bosses intended to snap under stress in complementary cavities formed opposite said outer part to reinforce the mutual wedging of the two parts after assembly.

According to other features, the projecting element carried by the inner part is engaged in force in the corresponding orifice located on the outer part to assemble said inner and outer parts.

Preferably, the inner part has the same profile and the same dimensions as the outer part.

The invention makes it possible to improve the manufacturing process of the device by providing, in a simple and reliable manner, a connection between the two component parts of the connecting lug while offering an ergonomic means of retaining and immobilizing the excess length. links on this paw.

The device of the invention adapts, moreover, to all types of links (textile webbing, notched toothed racks for example, ...) while having a light and compact structure.

Thanks to the invention the structure of the central leg becomes very resistant while remaining flexible enough to closely match the shape of the shoe.

The invention can be applied both to the central lug that bears on the kick at the upper part of the stem than the one that covers the metatarsophalangeal portion located on the front of the shoe.

BRIEF DESCRIPTION OF THE FIGURES

• La figure 1 représente une vue partielle en perspective d'un dispositif de retenue traditionnel selon l'art antérieur.
• Les figures 2A et 2B représentent des vues partielles en perspective éclatée d'un mode de réalisation du dispositif de l'invention, respectivement, avant et après assemblage des deux pièces constitutives de la patte centrale de liaison.
• Les figures 3A, 3B et 3C représentent des vues partielles, respectivement, de dessus, en perspective et de côté du mode de réalisation du dispositif de l'invention déjà illustré par les figures 2A et 2B avec le lien en position de blocage.

Other features and advantages of the invention will emerge on reading the description which follows, with reference to the appended figures and detailed below.

• The figure 1 represents a partial perspective view of a traditional retaining device according to the prior art.
• The Figures 2A and 2B represent partial exploded perspective views of an embodiment of the device of the invention, respectively, before and after assembly of the two constituent parts of the central connecting lug.
• The Figures 3A, 3B and 3C represent partial views, respectively, from above, in perspective and from the side of the embodiment of the device of the invention already illustrated by the Figures 2A and 2B with the link in the locked position.

For the sake of clarity, identical or similar elements are marked with identical reference signs throughout the figures.

Naturally, the embodiments illustrated by the figures presented above are given by way of non-limiting examples. It is explicitly planned that we can associate these different modes to combine them.

DETAILED DESCRIPTION OF EMBODIMENTS

The figure 1 represents a traditional retaining device for attaching a boot to a gliding board and, more particularly here, to snowboard in the locking position.

This device comprises, in a traditional manner, a lower base or rigid shell E intended to be secured or anchored on a board (not shown) and intended to receive a shoe or boot (also not shown).

The base E is provided with at least one upper link 1 and, here, two links 1a, 1b ensuring the closure of the device being, on the one hand, integral with the base E and, secondly, blocked or locked on a central leg 2 (and here respectively a rear leg 2a and a front leg 2b) bearing on the shoe, after tightening.

The device is, in addition, equipped with at least one locking element S of the link 1 (here respectively 1a, 1b) generally integral with the central lug 2 (respectively 2a, 2b).

The length of the links 1a, 1b can be adjusted by means of the locking member S which also ensures, in some cases, a tightening of the tabs 2a, 2b on the shoe.

In the presence of two tabs 2, as in the embodiment shown, while the link 1a blocked on the tab 2a ensures the retention of the leg and foot in the base, the rear leg 2a forms a cushion cushion and cushion that comes to marry the upper part of the shoe and, in particular, the kick.

The link 1b and the front leg 2b ensure, for their part, the retention of the front end of the shoe in the base E.

The invention aims to improve this traditional device by modifying the structure of the central leg 2.

In the embodiment of the invention illustrated by the FIGS. 2A, 2B and 3A to 3C , the central lug 2 comprises a set of two parts, respectively, a flexible inner part 21 of comfort and a rigid outer part 22 of reinforcement.

The two parts have substantially the same dimensions and the same bent curvilinear profile because they are intended to be assembled with each other to form a single compact element 2, however, having different and complementary mechanical properties on its internal faces. and external.

However, the shapes of the two parts could be different and preferably the inner part 21 could be wider than the outer part 22 to isolate the shoe from the rigid part 22 and avoid compression points on the foot of the user. The pieces can also be flat or un-bent, their respective flexibility to then marry the curved shape of the upper part of the shoe by deformation.

It is certainly expected that the two parts are made with different plastics but it would be possible to achieve them with the same material, then adjusting for each piece its hardness and / or its thickness.

Indeed, the inner face of the leg 2 is intended to come into bearing contact with the shoe by marrying closer to the upper part of the rod at the kick.

Therefore, the inner part 21 must have an elastic deformation capacity to give comfort to the user.

In particular, the inner part 21 may be an injected piece of plastic such as polyurethane, or polyamide or EVA (Ethylene Vinyl Acetate) with a low hardness of about 60 Shore A and average thickness between 3 to 8 mm.

Furthermore, the outer face 22 of the lug 2 here carries two locking members S1, S2 ( Figures 3A, 3B and 3C but not represented on the Figures 2A and 2B ) and is thus subjected to the tensile stresses exerted by the link 1 here comprising the notched lateral links here formed of the racks 11, 12 which are mounted on both sides (left and right) of the tab 2 (the right side of the tab 2 is placed on the side of the inner side of the shoe).

The device of the invention has been presented on FIGS. 3A to 3C with rack-type links but these links could be of another type such as, for example, a link provided with holes as illustrated by the figure 1 (right side-inside shoe) or a link with various profiles of teeth or notches.

The piece 22 can be positioned on the upper part of the boot, preferably in a laterally centered position relative thereto by virtue of the choice of the length adjustments of each of the two links 11 and 12 and to the blockages of these two links 11 and 12 in the positions chosen thanks to the two locking members S1, S2. In the case illustrated, the clamping of the lug 2 is then performed by the locking member S1 which has a kinematics for performing this clamping.

Consequently, the outer part 22 must have good resistance to deformation so as not to stretch when tightening the links and prevent any play or harmful movement of the shoe in the base.

Also, the outer part 22 constitutes a reinforcement piece made of a material that is more rigid than the inner part 21. In particular, it can be made of an injected plastic material of the polyurethane or polyamide type, for example, with a hardness greater than the hardness of the material used for the inner part, about 60 Shore D. Its thickness is preferably between 2 and 6mm.

This outer piece 22 is preferably perforated to reduce its weight while maintaining material lines oriented in the longitudinal and transverse direction to obtain sufficient rigidity. This rigid piece, however, remains flexible enough to adapt to the shape of the upper part of the shoe.

In parallel, it frequently happens that the link 1, once adjusted to the correct length and locked in longitudinal position by the member S to immobilize the boot in the base E, has an end section which, having served manual grip, is free and not under tension on the upper face of the tab 2 since located beyond the locking member and / or clamping.

However, the presence of this free section can cause discomfort or even a risk to the safety of the surfer because it protrudes, from the central leg 2, a length sometimes relatively large and can cling accidentally to external elements.

The invention has thus made it possible at the same time to optimize the respective functions of the two components constituting the central lug and to trap at least a part of the excess length of the link after it has been locked and / or clamped.

For this purpose, the flexible inner part 21 carries at least one projecting element such as a pin 23 which engages in a corresponding orifice 20 formed through the outer part 22 forming a loop for the link 1 while locking the two parts 21, 22.

The lug 23 may be made in an elastically deformable manner to facilitate its insertion into the orifice 20.

However, when the lug 23 is more rigid, its insertion into the orifice 20 can be obtained by deformation of the inner part 21.

In another variant, the lug 23 will be forced into the orifice 20.

With this arrangement, the assembly of the two parts has a certain clearance unless the locking was completed either by the injection of an adhesive in their small interspace or, in a variant not shown, by the joint presence of pins and cavities made on their faces opposite.

In the illustrated embodiment, in particular, by the figure 3C , the lug 23 comprises two branches 23a, 23b substantially perpendicular.

More specifically, the first branch 23a ensures the connection of the lug 23 to the part 21 and extends substantially perpendicular to the upper face of said part.

This intermediate branch is here of truncated shape with an enlarged base whose dimensions and section are very close (or identical) to those of the orifice 20 formed opposite the part 22 which is intended to receive it.

Once introduced into the orifice 20, the branch 23a protrudes above the upper face of the piece 22 with, where appropriate, a slight clearance.

The branch 23a is extended by an end branch 23b which extends at 90 ° relative to the branch 23a and substantially parallel to the upper face of the outer part 22.

When the two parts are assembled, the free intermediate space 30 defined between the branch 23b and the outer face of the part 22 allows the passage of an end section of this link 1 in the manner of a belt passer or of bracelet.

The inner part 21 carries at least one series of projecting elements or lugs 23 grouped, for the most part, in pairs and whose respective free ends of the branches 23b come opposite in order to improve the retention of the link 1 up.

In the embodiment illustrated by the FIGS. 3A to 3C , the inner part 21 carries two series of lugs, each cooperating with a lateral link 11, 12 blocked on either side of the central lug 2.

To further improve the guiding and the effectiveness of the retention of the link on the leg 2, it is possible to increase the number of lugs.

Only the last and seventh element 23 'disposed on the right side of the leg 2 is here isolated ( figure 3A ) having no other lug facing.

The cooperation of a plurality of projecting elements 23 with orifices 20 which are dedicated thereto makes it possible to improve the strength of the assembly between the two parts 21, 22 as well as the immobilization of the free part of the link 1 (and in the variant of FIGS. 3A to 3C of each of the two links 11, 12).

The ends facing the branches 23b of the lugs 23 delimit a slot 230 whose width is smaller than that of the link 1 and, where appropriate, less than 1 mm or even with contiguous ends.

According to a variant not shown, the projecting elements are made in the form of monobloc bridges each engaged in the same orifice, the two branches 23b forming only one upper branch retaining the end section of the link, the end branch 23b single being connected by its ends respectively to two intermediate branches 23a.

Preferably, the edges 23c of the end branch 23b of the lugs 23 are straight and oriented parallel to the longitudinal axis L ( figure 3A ) passing through the two locking members S1, S2 on the outer part 22 and corresponding, at least, to that of the link at rest.

However, some edges may be oriented differently, as is the case, in particular, for the edge of the lug 23 'located on the right side of the lug 2 ( figure 3A ) which is bisected to facilitate the guiding of the link to the spacer space 30 forming a passer.

The branches 23b of the lugs can be oriented from 0 ° to 90 ° with respect to the axis L and on the right side of the figure 3A preferably at 45 °.

The inner part 21 carries, in addition, bosses or studs 24 intended to be positioned or clipped in complementary cavities or recesses 40 formed opposite the outer part 22 to reinforce the interlocking and the mutual wedging of the two parts after assembly. as illustrated by Figures 2A and 2B .

Some cavities may, however, remain free in order to provide areas of greater flexibility on the inner part 21 and / or on the part 22 and also to reduce the weight of the tab 2.

Claims (12)

Device for retaining a boot on a gliding board comprising a lower base (E) intended to be secured to the board and receiving the boot and at least one upper link (1) ensuring the closure of the device while being, of a part, secured to the base and, secondly, locked on a central lug (2) bearing on said shoe, in the locking position, characterized in that said central lug comprises an inner part (21) bearing at at least one projecting element (23) engaging in a corresponding orifice (20) formed through an outer part (22) forming a loop (30) for said link. Device according to claim 1, characterized in that said projecting element (23) is elastically deformable. Device according to one of the preceding claims, characterized in that said projecting element is a lug (23) comprising two substantially perpendicular branches, the end branch (23b) extending remotely and substantially parallel to said outer part (22) for delimiting said passer (30) for housing the link (1). Device according to the preceding claim, characterized in that said end branch (23b) is connected to the inner part (21) via an intermediate branch (23a) passing through the orifice (20) facing arranged on the outer part (22). ). Device according to one of the preceding claims, characterized in that said inner part (21) carries at least one series of projecting elements (23) grouped in pairs and whose free ends come in pairs facing each other. Device according to the preceding claim, characterized in that said inner part (21) carries two series of projecting elements (23), each cooperating with a lateral link (11, 12) blocked on either side of said central lug (2). Device according to claim 5 or 6, characterized in that the free ends facing said projecting elements (23) define a slot (230) whose width is less than the width of the link (1). Device according to one of claims 1 to 4, characterized in that said projecting element (23) is in the form of a bridge whose end branch (23b) is connected by its ends respectively to two intermediate branches (23a). Device according to one of the preceding claims, characterized in that the outer part (22) forming a reinforcement is of greater rigidity than the inner part (21) of comfort. Device according to one of the preceding claims, characterized in that said inner part (21) carries, in addition, bosses (24) intended to clip under stress in complementary cavities (40) arranged opposite said outer part ( 22) to reinforce the mutual wedging of the two parts (21, 22) after assembly. Device according to one of the preceding claims, characterized in that said projecting element (23) carried by the inner part (21) is forcibly engaged in the corresponding orifice (20) situated on the outer part (22) for ensure the assembly of said inner and outer parts. Device according to one of the preceding claims, characterized in that said inner part (21) has the same profile and the same dimensions as the outer part (22).

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