EP1240926A1 - Assembly for binding a foot on a sports article - Google Patents

Abstract

The boot (2) has four transverse retractable pins (10,11,12,13). The support (3) has two front webs (40,41) and two rear webs (60,61) which each have a closed housing (62,63) for a pin. The front webs have an open housing (42,43) and a longitudinal guide ramp (44,45).

Description

The invention relates to the field of sets of retention of one foot on a sliding or rolling machine intended to practice a sport. Such sets are used for skiing on snow or water, snowboarding or snowboarding, roller skating, snowshoeing, mountaineering, or whatever.

A set usually includes a shoe and a support of the shoe on the machine.

It is interesting to ensure on the one hand that the retention of the shoe on the support is precise, so that as a consequence the behavior of the machine is precise, and on the other hand that the shoe allows an easy walk.

To meet this double requirement, the prior art has proposed solutions.

For example, document FR 2 749 483 discloses a set comprising a shoe and a shoe support. according to this document, studs from side walls of the shoe cooperate with wings from a base of the support, for the removable retention of the shoe on the support. The studs and the wings are respectively in number of four. Two studs are behind the front of the shoe each on one side. Two other studs are in front relative to the back of the shoe, each on one side. This distribution of studs and wings allows a holding precise of the shoe on the support.

Furthermore, the distribution of the studs makes it possible to give the shoe a structure that makes walking easy.

Sometimes the shoe is put on the support is difficult, because the shoe is done blind.

The invention particularly aims to facilitate the fitting for an assembly in which the shoe is retained using studs and wings.

To this end, the invention proposes a retaining assembly of one foot on a machine, intended for the practice of a sport, the set comprising a shoe and a support of the shoe on the machine, the shoe having four studs arranged horizontally and transversely, two fixed studs each being set back from one end of the sole of shoe and laterally protruding, two retractable studs each being set back from the other end of the sole of shoe and projecting laterally, the support having a base, first two wings projecting above the base, each at a lateral edge of the base and facing the other transversely.

According to the invention, the assembly is characterized by the fact that each of the first wings has an open housing longitudinally and a longitudinal ramp provided for accommodate a fixed stud at the bottom of the housing, and by the fact that each of the second wings has a closed housing of retention of retractable studs and a guide ramp longitudinal and transverse provided to guide the studs retractable to their respective retainer.

To fit, the user first brings the fixed studs at the entrance to open accommodation. Then he just has to to press with the leg towards the base. During the push of the leg, the longitudinal and transverse ramps guide the heel of the shoe in a recoil and lowering direction, until the fixed studs and the retractable studs are held simultaneously in their respective homes. Same while the heel recedes, the front studs recede towards the front housing bottom.

It advantageously follows that the fitting operation is made easier.

• la figure 1 est une vue en perspective éclatée d'un ensemble de retenue, selon un premier exemple de réalisation de l'invention,
• la figure 2 est une vue latérale de la chaussure de l'ensemble de la figure 1,
• la figure 3 est une vue de dessous de la chaussure de l'ensemble de la figure 1,
• la figure 4 est une vue en perspective du support de l'ensemble de la figure 1,
• la figure 5 est un schéma de côté de l'ensemble de la figure 1, au début du chaussage,
• la figure 6 est un schéma de côté de l'ensemble de la figure 1, quand une poussée verticale descendante est exercée sur la chaussure,
• la figure 7 est un schéma de côté de l'ensemble de la figure 1, chaussage effectué,
• la figure 8 est une vue latérale d'une chaussure selon un deuxième exemple de réalisation de l'invention,
• la figure 9 est une vue en perspective d'un support selon un troisième exemple de réalisation de l'invention,
• la figure 10 est une vue en perspective d'un support selon un quatrième exemple de réalisation de l'invention.

Other characteristics and advantages of the invention will be better understood with the aid of the description which follows, with reference to the appended drawing illustrating, according to non-limiting examples, how the invention can be implemented, and in which:

• FIG. 1 is an exploded perspective view of a retaining assembly, according to a first embodiment of the invention,
• FIG. 2 is a side view of the shoe of the assembly of FIG. 1,
• FIG. 3 is a bottom view of the shoe of the assembly of FIG. 1,
• FIG. 4 is a perspective view of the support of the assembly of FIG. 1,
• FIG. 5 is a side diagram of the assembly of FIG. 1, at the start of the fitting,
• FIG. 6 is a side diagram of the assembly of FIG. 1, when a downward vertical thrust is exerted on the shoe,
• FIG. 7 is a side diagram of the assembly of FIG. 1, footwear made,
• FIG. 8 is a side view of a shoe according to a second embodiment of the invention,
• FIG. 9 is a perspective view of a support according to a third embodiment of the invention,
• Figure 10 is a perspective view of a support according to a fourth embodiment of the invention.

The first example is described below using the Figures 1 to 7.

As shown in Figure 1 a restraint system, a foot on a snowboard 1, includes a boot 2 and a support 3.

In known manner, the shoe 2 comprises a sole 4 extended upwards by a rod 5. The sole 4 and the bottom of the rod form a relatively rigid integral piece, made for example from a synthetic material such than plastic.

As best shown in Figure 2, the sole 4 of the shoe 2 is shaped to facilitate walking. In this Indeed, the sole is rounded and raised to the level of the front end 6 of the shoe. By analogy the heel is rounded and raised at the rear end 7 of the shoe. This sole shape allows the unwinding of the foot during the walk.

Furthermore, the top of the rod 5 comprises means for removable hold of the foot, as is well known to those skilled in the art job.

As best seen in Figure 3, shoe 2 is provided with four pads 10, 11, 12, 13 arranged horizontally and transversely. Two front studs 10, 11 are set back from the front end 6 of the shoe, and projecting laterally on the lateral edges of the sole 4 recessed with respect to the contact surface of the sole. The studs before 10, 11 are fixed relative to the shoe sole 2. These studs are preferably substantially at the metatarsal level when the foot is in the shoe.

Two rear studs 12, 13 retractable are set back from the rear end 7 of the shoe, and projecting laterally, set back from the contact surface of the sole 4. These studs are preferably at the heel of the foot when the latter is in the shoe.

In the illustrated embodiment, the pads 10, 11, 12, 13 are cylindrical, but they could have had other forms. They are made for example of metal alloy or made of synthetic material.

A device for retracting the rear studs 12, 13 to the inside of the sole is integrated into shoe 2. This device is for example produced in accordance with what is described in patent application EP 680 775 cited here as reference. It allows to bring in transversely the studs 12, 13 inside the sole, by pulling on a handle as that designated by the reference 14 in FIG. 1. Other construction methods may also be suitable.

To keep the studs 12, 13 projecting from the means elastic, such as springs, constantly stress the studs 12, 13 in a direction of exit from the heel.

To retain the shoe 2 on the board 1, the support 3 is structured as seen for example on the figure 4.

The support 3 comprises a base 20, one face of which upper 21 comes opposite the sole 4, and one face of which lower 22 comes above board 1.

The base 20 extends longitudinally between one end rear 23 and a front end 24, and transversely between a first lateral edge 25 and a second lateral edge 26.

The length of the base is equal to or less than the length of the shoe sole.

The base 20 is retained on the board 1 by a means represented in the form of a disc 30, itself secured to removably to the board 1 for example using screws 31, 32, 33, 34. The disc 30 makes it possible to orient the support 3 in rotation relative to the board. Other modes of construction could be suitable to assemble the base to the board.

The support 3 has means for retaining the shoe removably, which break down into a front part and a rear part.

For the front part of the retaining means, the support 3 includes two front wings 40, 41 projecting above the base 20. Each wing 40, 41 is at a lateral edge 25, 26 and facing each other transversely. Wings before 40, 41 have a distance between them substantially equal to the width of the shoe sole at the studs before.

According to the invention each of the front wings 40, 41 has respectively a housing 42, 43, open longitudinally forward, to accommodate a front stud 10, 11. The housings 42, 43 are facing each other transversely.

Each of the housings 42, 43 generally has the form an open hook extended forward with a ramp lower 44, 45 for access to a retention zone 47, 48 where the studs are retained in rearward abutment at the bottom of the housings and vertically by the upper edges 46, 47 housing.

The housings cross the wings right through. this is not limiting and the housing could be blind.

According to the illustrated embodiment, the front ramps 44 and 45 are rectilinear and horizontal and located in front of the housing 47 and 48. They could also be slightly inclined.

For the rear part of the retaining means, the support 3 includes two rear wings 60, 61, protruding above the base 20. The spacing of the wings is determined so that the sole can engage them so as to maintain the shoe transversely on the support 3. They have between they a distance substantially equal to the width of the shoe sole at the rear studs.

The rear wings 60, 61 respectively have a closed housing 62, 63 having in section a shape and dimensions corresponding to those of a stud, to retain each a rear stud 12, 13. The housings 62, 63 are oriented transversely, and open opposite one of the other.

According to the illustrated embodiment, they cross the wings right through. Alternatively, they could be blind.

The distance between the front and rear housings of the base is equal to the distance between the front studs and back of the shoe.

To bring in the rear studs 12, 13 of the shoe in the housings 62, 63 of the rear wings 60, 61, transverse ramps 64, 65 and longitudinal ramps 70 and 71 are formed in the wings.

Each transverse ramp 64, 65 extends respectively from an upper face 66, 67 of the wing to the housing 62, 63. Each ramp 64, 65 is inclined transversely, towards inside the support from the top. The space between ramps 64, 65 at their top is greater than or equal to overall dimensions of the rear studs in the extended state. The ramps converge down until the housing opens 62 and 63. When the heel of shoe 2 is biased towards the bottom, the rear studs 12, 13 are retracted in contact with the ramps 64, 65. When the studs 12, 13 arrive opposite of the housings 62, 63, the elastic means repel the studs inside their respective retaining housing.

Preferably, in their retaining housing the studs keep the shoe sole suspended above the base 20, so that a block of snow possibly does not interfere with the fitting.

According to the invention, there are also provided two ramps longitudinal 70, 71 to guide the rear studs of the shoe 2, in a longitudinal direction towards their housing respective.

The ramps 70, 71 are formed in the rear wings 60, 61. According to this illustrated embodiment, they are straight and tilted backwards and downwards from the upper face 66, 67 of the rear wing 60, 61 up to the opening of a housing 62, 63.

The longitudinal ramps 70, 71 are opposite one of the other transversely.

The inclination and length of ramps 70 and 71 is determined according to the spacing of the studs on the sole and front ramps 44 and 45. When the studs before 10 and 11 of the sole bear on the front ramps 44 and 45, the studs rear 12 and 13 are likely to come into contact with rear ramps 70 and 71 according to the inclination of the sole.

The inner faces of the wings also contribute to guiding the studs by transversely guiding the sole of shoe.

Preferably, the base 20 and the wings 40, 41, 60, 61 form a single piece, made for example from of a metallic alloy or with a synthetic material. However, it could be expected that the wings are attached to the base 20 by any means such as bonding, welding, interlocking, screwing, riveting, or the like.

The boot of shoe 2 on support 3 is explained below using Figures 5 to 7.

First the shoe 2 is brought above the support 3, as seen in FIG. 5, so that the front studs 10, 11 are supported on the ramps 44, 45 of the front wings 40, 41 in front of the housings, and the studs rear 12, 13 appear above the ramps of the wings rear 60, 61.

Then the back of shoe 2 is lowered as this is the case in figure 6. The reaction of the ramps longitudinal 70, 71 induces a retreat of the whole shoe. The front studs 10, 11 move back towards the bottom of the housings 42, 43. The rear studs 12, 13 descend at the same time as they retreat and retract until they arise in the opening of housings 62 and 63.

When the heel is fully lowered, as is the case in Figure 7, the boot is made. The rear studs 12, 13 are then retained in the housings 62, 63 of the wings rear, and the front studs 10, 11 are retained in the housings 42, 43 of the front fenders.

For heaving, the user actuates the handle 14 so as to retract the rear studs. The rear part of the sole is then released, the shoe can be released by a simple forward movement.

Preferably as best seen in Figures 3 and 4, there may be provided a rib 75 projecting above the base 20 between the front wings 40, 41. In a direction longitudinal the rib is provided to cooperate with a cavity 76 at the front of the shoe sole. It is used to reduce the contact surface between the shoe and the base shoeing maneuver. The top of the rib 75 and the bottom of the groove 76 which are provided to come one at contact with each other preferably have low coefficient of friction.

The presentations of the other examples of realization of the invention are made below in a simplified manner, and do not show that the differences from the first example.

The second example is presented using Figure 8. It differs from the first only in that the shoe 80 used is constructed from a relatively flat sole 81 flexible, extended upwards by a rod 82 also relatively flexible.

Therefore, the front studs 83, 84 and the rear studs 85, 86 are mounted on a relatively rigid housing 87, itself nested from below in the sole 81. The flexibility of the shoe allows walking, and the course of the foot is not or little bothered by the presence of the case, because it extends noticeably from the metatarsal to the heel when the foot is in the shoe.

The third example is presented using Figure 9. It concerns the technical field of piste skiing.

A shoe support 100 is secured to a ski 101 via a triggerable restraint 102. The support 100 is fixed to the retaining device 102 by a means shown in the form of four screws 103, 104, 105, 106. Of course, other means of attachment could suit.

The triggerable retaining device 102 is known from the skilled person. It includes an upper plate 107 which separates from a bottom plate 108 in the event of stress excessive, the lower plate remaining on the ski 101. Incidentally, a brake 109 is provided at the rear of the support 100.

Of course, other structures could be provided for the triggerable restraint.

On the other hand the support 100 could be mounted directly on ski 101, especially if the ski is a ski short.

The fourth example is presented using the figure 10. It concerns the technical field of inline skating.

A skate frame 120 includes a shoe support 121 according to the invention, the support being extended downwards by arches 122, 123. These are used to mount wheels 124, 125, 126, 127. A shoe can be secured removably to the support 121 to form the pad.

Although the chassis here is in one piece, it could be provided that the support is attached to a base itself extended by the arches. In this way the support of shoe could be separated from a subset comprising the wheels.

In general, the invention is made from of all materials and according to all known techniques of one skilled in the art.

Of course, the invention is not limited to the examples described above, and includes all technical equivalents which may fall within the scope of the claims which to follow.

In particular, other forms could be given to the wing housings, to the ramps, and to the wings themselves.

We could also reverse the relative position of front and rear studs on the shoe so as to have the retractable studs on the front. In this case the maneuver of footwear would start from the back.

Also the front and rear guide rails could be located not on the front but on the back dwellings with which they are associated respectively and the front compartments could be opened at the rear. In this case when fitting, the engagement of the shoe would produce a forward movement of the shoe.

Claims (11)

Assembly for retaining a foot on a machine (1, 101) intended for the practice of a sport by means of a sliding or rolling machine, the assembly comprising a shoe (2, 80) and a support ( 3, 100, 121) of the shoe (2, 80) on the machine, the shoe (2, 80) having four studs (10, 11, 12, 13, 83, 84, 85, 86) arranged horizontally and transversely , two fixed studs (10, 11, 83, 84) each being set back from one end (6) of the shoe sole (2, 80) and projecting laterally, two retractable studs (12, 13, 85, 86 ) being each set back from the other end (7) of the shoe sole (2, 80) and projecting laterally, the support having a base (20), two first wings (40, 41) projecting above of the base (20), each at a lateral edge (25, 26) of the base (20) and facing the other transversely, two second wings (60, 61) projecting above above the base (20), each at a side edge (25, 26) of the base (20) and facing the other transversely, characterized in that each of the first wings (40, 41) has an open housing (42, 43) and a longitudinal front ramp (44, 45) provided to receive a fixed stud (10, 11, 83, 84) at the bottom of its respective housing and each of the second wings (60, 61) has a closed housing (62, 63) for retaining the retractable studs (12, 13, 85, 86) and a longitudinal and transverse guide ramp (70, 71, 64, 65) formed on the support (3, 100, 121) intended to guide the retractable pads (12, 13, 85, 86) towards their housing respective restraint. Restraint system according to claim 1, characterized in that the front ramps (44, 45) are straight and horizontal. Restraint system according to claim 1, characterized in that the rear ramps (70, 71) are straight and inclined. Assembly according to claim 1, characterized in that the front housings (42, 43) are open towards the front of the base, that the front ramps (44, 45) are located towards the front of the front housings, and that the rear ramps (70, 71) are located towards the front of the rear housings (62, 63). Assembly according to Claim 1, characterized in that the front and rear ramps (44, 45, 70, 71) have a distance between them of the same order of magnitude as the distance between the front and rear studs (10, 11, 12 , 13). Restraint system according to claim 1, characterized in that the front wings (40, 41) have a distance between them substantially equal to the width of the front part of the shoe sole at the level of the front studs. An assembly according to claim 1, characterized in that the rear wings (60, 61) have a distance between them substantially equal to the width of the rear part of the shoe sole at the rear studs. An assembly according to claim 1, characterized in that the studs (83, 84, 85, 86) are projecting relative to a housing (87) attached by fitting under the shoe sole. Support for retaining a shoe on a sliding or rolling vehicle, the support having a base (20) bordered by two first wings (40, 41) and two second wings (60, 61) projecting along the edges side of the base, characterized in that the first wings each have a front housing (42, 43) and a longitudinal guide ramp (44, 45) and the second wings each have a closed housing (62, 63) and a transverse and longitudinal guide ramp (64, 65, 70, 71). Shoe for practicing a sport by means of a sliding or rolling apparatus comprising a sole with a contact surface, characterized in that the sole has two fixed studs (10, 11, 83, 84) s' extending laterally and recessed from the contact surface of the sole and two retractable studs (12, 13, 85, 86) extending laterally and recessed from the contact surface of the sole. Shoe according to claim 10, characterized in that the studs (83, 84, 85, 86) are projecting relative to a housing (87) attached by fitting under the sole of the shoe.

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