EP0484683B1 - Sports shoe, in particular for walking and cross-country skiing provided with detachable leg support - Google Patents

Sports shoe, in particular for walking and cross-country skiing provided with detachable leg support Download PDF

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Publication number
EP0484683B1
EP0484683B1 EP91117102A EP91117102A EP0484683B1 EP 0484683 B1 EP0484683 B1 EP 0484683B1 EP 91117102 A EP91117102 A EP 91117102A EP 91117102 A EP91117102 A EP 91117102A EP 0484683 B1 EP0484683 B1 EP 0484683B1
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EP
European Patent Office
Prior art keywords
collar
head
stud
buttonhole
projection
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Expired - Lifetime
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EP91117102A
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German (de)
French (fr)
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EP0484683A1 (en
Inventor
Jean-Luc Falguere
Jean-Claude Calzolari
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Salomon SAS
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Salomon SAS
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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/04—Ski or like boots
    • A43B5/0411—Ski or like boots for cross-country

Definitions

  • the present invention relates to a sports shoe, intended for sports requiring longitudinal mobility of the foot relative to the leg and good ankle grip and which is more specifically suitable for walking (hiking, trekking) or for skiing. background.
  • this is defined by repetitive cycles in which alternate, motor phases and rest phase; a motor phase corresponding to an impulse provided by one leg, being followed by a rest phase where one slides on the other leg, the skis remaining substantially parallel during these cycles.
  • the lower train works on sliding supports, which forces the skier to exert a thrust directed laterally, with respect to its trajectory, by making its skis diverge to rest on the edges .
  • the alternative step requires only a front / rear flexibility in the direction of movement for the movements of extension / flexion of the leg, while in the case of the skater's step, an additional requirement is required which is added to the previous one and which consists in obtaining a maximum rigidity of the shoe in the direction perpendicular to the movement for good grip of the ankle. It should be noted that the requirements for shoes for skating steps are the same as for walking shoes.
  • shoes with low upper for the practice of the alternative step on the one hand, and shoes with high upper for the practice of the skater's step or walking, on the other hand .
  • shoes with high articulated upper are desirable for hiking while shoes with low upper are necessary for the practice of sport requiring only one foot unwinding.
  • the articulation of the rigid collar on the low rod is located at the upper end thereof, the collar extending upward from its articulation, beyond the end. upper stem.
  • This document therefore teaches how to obtain, from a shoe with a low upper, a shoe with a high upper, which moreover is articulated, but does not solve the problem posed, namely to offer a shoe that can be used for both for the practice of the alternative step and the skater step.
  • these fixing means consist of an elastically deformable nail coming from the rear buttress and formed of a plurality of parallel elastic arms arranged around the transverse axis of articulation of the collar, and which engage by a transverse action, in a cylindrical hole of the collar until the hooks placed in a corolla on the end of the said arms, snap elastically onto the external face of the collar emerging from it.
  • such a corolla constitutes a projection liable to be dangerous in the event of a fall or a collision with another skier.
  • fixing means require for the removal of the collar the use of a tightening tool capable of pinching the corolla formed by the end of the arms, thus making such manual removal difficult (if not impossible), given the small grip surface available, often snow-covered.
  • the object of the present invention is to remedy these various drawbacks and to provide a dual-use sports shoe, that is to say with a low upper or a high articulated upper, easily transformable with simple means and without requiring d 'special tools.
  • the invention relates to a sports shoe in particular for walking and cross-country skiing, obtained from a low rod provided with a rear buttress and comprising a rigid collar intended to surround the bottom of the leg and articulated on the rear buttress of the rod at the upper level thereof, the collar extending upwards from its articulation beyond the end of the rod, and comprising on either side of its articulation zone overlapping the top of the rod, its own locking means, which consist of a deformable buttonhole, to allow its engagement by deformation on the head of a nail secured to the buttress, the dimensions of which are greater than those of the buttonhole, characterized in that the buttonhole comprises at least one elastically deformable part out of its plane to allow the introduction of the head of the nail into a recess defining a passage of a value at least equal to the diameter of the said head and opening into a cylindrical hole in which the nail engages or a cylindrical projection obtained in one piece with the buttress and the nail of which is made integral, the said hole was nt of
  • the large head nails forming buttons can be located on a transverse axis substantially at the level of the natural articulation of the leg on the foot, which allows a better comfort since there is concordance between the two axes.
  • the nails are made integral with the buttress, by force-fitting into holes in cylindrical projections obtained in material with the buttress.
  • the buttonhole is defined by a segment of a circle, the cord of which is of a value at least equal to the diameter of the nail head and by a longitudinal slot opening through one of its ends in the circle segment and by its other end in a cylindrical part, the diameter of which is at least equal to that of the projections, the longitudinal slot being delimited transversely by lips deformable elastically out of their plane during the introduction of the head of nail and in their plane during the passage of the projection, until elastic snap thereof in the cylindrical hole, the diameter of which is greater than the width of the slot, to define near the entrance of the hole two collar retaining beads on the projection.
  • the shoe shown by way of example in FIG. 1 is particularly suitable for skating or skating or for hiking and has the appearance of a shoe originally made up of a low rod 10, c ' that is to say a rod whose rigid parts do not extend in height beyond the malleoli, an outer sole 11 and a lacing system 20 of a type known per se.
  • the rod 10 is made of flexible material and is provided at the heel with a rear buttress 12 which can be produced in any way known per se.
  • This buttress 12 is preferably made of rigid synthetic material, and extends over the entire rear part of the shoe, all around the heel thereof.
  • This buttress 12 extends, in the region of the malleoli, to the top of the upper, for the reception of an articulated collar 13, and has at its upper end, at the level of these malleoli, on each side of the shoe , a projection or boss 12a extending outward substantially perpendicular to the wall of the buttress and adapted to be introduced into an associated cylindrical hole 13a, formed on each side of the collar 13 (see Figure 2).
  • Each boss 12a is also provided with a hole 12b for fixing the collar 13 by means of nails 19 (see FIG. 8).
  • the collar 13 can therefore be mounted articulated on the projecting parts 12a of the buttress of the rod at the upper end of the latter.
  • the nails 19 can be replaced by any other connection method allowing rotation such as rivets.
  • the use of nails 19 is particularly advantageous, because it allows installation by simple application of pressure on the head 19a, without requiring a counterpart as in the case of rivets.
  • the nails 19 will advantageously be made of a relatively flexible material compared to a metal rivet, such as "Delrin”, according to a registered trademark, so that their head 19a follows the possible deformations of the rigid collar 13, for example when of a twist of the leg, such a construction making it possible to avoid tearing of these nails during such a twist.
  • the articulated collar 13 is constituted by a cuff made of rigid material and in particular of a synthetic material such as "Pebax", according to a registered trademark.
  • This collar 13 extends up to the bottom of the calf and surrounds the entire lower leg. It is open at its front part to allow the foot to be placed in the shoe and is provided with clamping means 15 of a type known per se, and constituted for example by hook-and-loop means.
  • This collar 13 is also provided at the rear with a notch 13b intended to facilitate the rearward rotation of this collar (cf. position in dotted lines in FIG. 1).
  • the large height of the collar 13 allows excellent lateral hold of the leg during skating or hiking, such a height also allowing greater distribution of the reaction forces over the leg. and, therefore, better comfort for the user.
  • the total and independent articulation of the collar 13 on the rod allows the latter to pivot freely and without any discomfort for the user.
  • the tongue 42, like the lacing system 40, of the shoe does not extend, in height, not beyond the flexion fold of the user's foot, so as not to hinder it. bending.
  • the position of the hinge pin 30 of the collar 13 on the rod is chosen so as to achieve the best compromise between comfort and an axis as close as possible to the natural position of the tibio-tarsal joint, depending different morphologies and foot sizes.
  • the collar 13 comprises in its articulation zone overlapping the top of the rod 10 with its own locking means, capable of making it removable manually and cooperating in mounting with the projecting bosses 12a integral with the buttress 12 and materializing the transverse articulation axis 30.
  • buttons are arranged on either side of the articulation zone of the collar 13 and are constituted respectively by a buttonhole 50 with an axis of symmetry XX ′ (FIGS. 1 to 3) defined, on the one hand, by a segment of a hollowed-out circle 50a, the length of cord C of which is at least equal to the diameter D of the head 19a of the nail 19, and on the other hand, by a longitudinal slot 51, arranged symmetrically to the axis XX ' and opening through one of its ends 51a into the circle segment 50a and through its other end 51b into a circular opening 13a, the diameter D1 of which is at least equal to that of the projections 12a which engage therein.
  • a buttonhole 50 with an axis of symmetry XX ′ (FIGS. 1 to 3) defined, on the one hand, by a segment of a hollowed-out circle 50a, the length of cord C of which is at least equal to the diameter D of the head 19a of the nail 19, and on
  • the longitudinal slot 50 is delimited transversely by lips 51c and 51d, elastically deformable out of their plane, during the introduction of the nail head 19a 19.
  • This introduction is carried out first by introducing in an inclined manner, one side of head 19a in the segment of circle 50a, then by exerting lateral pressure on the collar 13, tending to deform the said lips out of their plane, the other part of the head 19a is passed over the lips 51c, 51d which then resume their initial position, according to an original plane, behind the head 19a of the nail 19.
  • the lips 51c and 51d also undergo another elastic deformation tending to separate them laterally, in the same plane this time, when the projection 12a passes in a direction F of introduction of the collar 13, and this until with elastic snap-fitting of said projection 12a in the cylindrical hole 13a.
  • the diameter D1 of the hole 13a is greater than the width l of the slot 51, to define, near its entry, two beads 52, 53 for retaining the collar 13 on the projection 12a.
  • the longitudinal axis XX 'of the buttonhole forms an angle a with respect to the generally vertical axis YY' of the collar 13, substantially equal to X 45 ° but, of course, the axis XX 'of the buttonhole can be confused with the 'axis YY' of the collar 13 or form a different angle.
  • the latter has a flared part formed by the ramp-shaped introduction edges 51e and 51f on the side of the end 51a of said slot 51 while the rest of the slot 51 has a substantially constant width l of value less than the diameter D1 of the projection 12a.
  • the embodiment shown in FIG. 4 essentially differs from the previous one, in that the buttonhole 60 is defined by a cylindrical hole 61 partially delimited on its periphery by two branches 62, 63 in the form of an annular sector forming a jaw.
  • the branches 62, 63 arise on the collar 13 itself, and are defined on the one hand by the hole 61 and on the other hand by a semicircular slot of larger diameter 69, and their free ends 62a and 63a are deformable out of their plan, to allow their engagement under the head 19a of the nail 19.
  • the introduction of the head 19a of the nail 19 is carried out substantially as described above, by tilting a first part of the head 19a over a branch, 62 for example, then over the other 63 by a righting gesture applied to said head.
  • the free ends 62a, 63a delimit between them a passage 64 of width l1 less than the diameter D2 of the cylindrical hole 61 in which the projection or boss 12a engages during assembly in a direction F1, to define at the entrance to said hole 61, two retaining beads 65 and 66.
  • the free ends 62a and 63a form an angle such as to define a flared introduction part of width l2> l1.
  • FIG. 5 differs essentially from that of Figure 4, in that a clearance J is provided between the outer periphery of the branches 62 and 63 in the form of an annular sector and the corresponding part of the collar 13 from which they originate by cutting, so as to give said branches 62, 63 a transverse elasticity in their plane.
  • the mounting of the collar 13 on the head 19a is carried out as previously in a direction of engagement F2.
  • the buttonhole 70 is defined by a circular hole 71 with a diameter D3 substantially equal to that of the projection 12a and partially delimited on its periphery by a tongue 72, arranged radially relative to the center O of the hole 71.
  • the tongue 72 is delimited by lateral recesses, constituted here by grooves 73, 74 extended by cutouts 75, 76 capable of making said tongue 72 elastically deformable out of its plane, this in order to allow the engagement of said buttonhole 70 on the head 19a of the nail 19, the passage of which in the hole 71 is made possible by driving the nail into the collar 13, which causes the tongue 72 to be erased out of its plane, then its elastic return in its plane, behind the head 19a, thus resting on the entire surface surrounding the hole 71.
  • the passage defined by the tongue 72 folded down with the opposite end of the hole 71 is at least equal to the diameter D3 of the head 19a of the nail 19.
  • buttonshole 80 is of generally rectangular shape, the length L of which is substantially equal to the diameter of the head 19a of the nail 19, to allow its go to editing.
  • the recess 81 is thus formed in a straight elastic tongue 83, elastically deformable out of its plane, thanks to two parallel lateral grooves 84 and 85.
  • the tongue 83 is produced on one of the long sides of the rectangle, corresponding to the length L, while on the opposite side 86 is formed the recess 82, this side 86 therefore constituting a rigid bearing face.
  • the head 19a initially bears by an inclined engagement, in the direction F5, then, by pivoting on itself by bending over said face 86, it overcomes the elastic force of the tab 83, to cause its erasure. After passage of the head 19a, the tongue naturally resumes its position in its plane, behind the said head 19a.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

A shoe with an initially low upper is characterised in that the collar (13) comprises, on either side of its zone of articulation straddling the top of the upper (10), its own elastic locking means which are capable of rendering it manually detachable and consist, respectively, of a buttonhole (50, 60, 70, 80), of which at least a part (51c, 51d-62, 63-72-83) is elastically deformable outside of its plane, in order to permit its engagement by deformation over the head (19a) of a stud (19) forming a button integral with the heel stiffener (12), its shape according to an initial plane then being reassumed behind the said head (19a) of stud (19), of which the dimensions are greater than those of the buttonhole (50, 60, 70 80). Application to sports shoes. <IMAGE>

Description

La présente invention concerne une chaussure de sport, destinée aux sports nécessitant une mobilité longitudinale du pied par rapport à la jambe et une bonne tenue de la cheville et qui soit plus spécifiquement adaptée à la marche (randonnée, trekking) ou à la pratique du ski de fond.The present invention relates to a sports shoe, intended for sports requiring longitudinal mobility of the foot relative to the leg and good ankle grip and which is more specifically suitable for walking (hiking, trekking) or for skiing. background.

Or, dans ce dernier domaine, il existe actuellement deux principales techniques qui sont le pas alternatif et le pas de patineur.However, in this latter area, there are currently two main techniques which are the alternative step and the skater step.

Selon la technique bien connue du pas alternatif, celle-ci est définie par des cycles répétitifs dans lesquels alternent, phases motrices et phase de repos ; une phase motrice correspondant à une impulsion fournie par une jambe, étant succédée par une phase de repos où l'on glisse sur l'autre jambe, les skis demeurant sensiblement parallèles au cours de ces cycles.According to the well-known technique of the alternative step, this is defined by repetitive cycles in which alternate, motor phases and rest phase; a motor phase corresponding to an impulse provided by one leg, being followed by a rest phase where one slides on the other leg, the skis remaining substantially parallel during these cycles.

Contrairement à cela, selon la technique du pas de patineur, le train inférieur travaille sur des appuis glissants, ce qui contraint le skieur à exercer une poussée dirigée latéralement, par rapport à sa trajectoire, en faisant diverger ses skis pour prendre appui sur les carres.Contrary to that, according to the skating step technique, the lower train works on sliding supports, which forces the skier to exert a thrust directed laterally, with respect to its trajectory, by making its skis diverge to rest on the edges .

On comprend aisément que de tels sports imposent à la chaussure des exigences différentes selon que l'on pratique le pas alternatif ou le pas de patineur.It is easy to understand that such sports impose different requirements on the shoe depending on whether you are practicing the alternative step or the skater step.

En effet, le pas alternatif n'exige de la chaussure qu'une flexibilité avant/arrière dans la direction du déplacement pour les mouvements d'extension/flexion de la jambe, alors que dans le cas du pas de patineur, une exigence supplémentaire est requise qui s'ajoute à la précédente et qui consiste à obtenir une rigidité maximale de la chaussure dans la direction perpendiculaire au déplacement pour une bonne tenue de la cheville. Il est à noter que les exigences requises des chaussures pour le pas de patineur sont les mêmes que pour les chaussures de marche.Indeed, the alternative step requires only a front / rear flexibility in the direction of movement for the movements of extension / flexion of the leg, while in the case of the skater's step, an additional requirement is required which is added to the previous one and which consists in obtaining a maximum rigidity of the shoe in the direction perpendicular to the movement for good grip of the ankle. It should be noted that the requirements for shoes for skating steps are the same as for walking shoes.

C'est pour ces différentes raisons qu'il existe actuellement des chaussures à tige basse pour la pratique du pas alternatif d'une part, et des chaussures à tige haute pour la pratique du pas de patineur ou de la marche, d'autre part. Dans un même ordre d'idée, les chaussures à tige haute articulée sont souhaitables pour la randonnée tandis que des chaussures à tige basse sont nécessaires pour la pratique de sport ne nécessitant qu'un déroulement du pied.It is for these various reasons that there are currently shoes with low upper for the practice of the alternative step on the one hand, and shoes with high upper for the practice of the skater's step or walking, on the other hand . In the same vein, shoes with high articulated upper are desirable for hiking while shoes with low upper are necessary for the practice of sport requiring only one foot unwinding.

En tout état de cause, deux types de chaussures sont nécessaires selon que l'on désire pratiquer la technique du pas alternatif ou celle du pas de patineur, c'est-à-dire selon que l'on souhaite une chaussure permettant uniquement un déroulement du pied ou garantissant à la fois un tel déroulement et une bonne tenue transversale.In any event, two types of shoes are necessary depending on whether one wishes to practice the alternative step technique or that of the skater's step, that is to say according to whether one wishes a shoe allowing only a course of the foot or guaranteeing both such an unwinding and good transverse holding.

Dans la demande de brevet européen EP-A-0 416 437 déposée par la demanderesse, publiée après la date de priorité attachée à la présente demande, et constituant ainsi un état de la technique selon l'article 54(3) CBE, il est décrit une chaussure pour la pratique du pas de patineur, et pour la randonnée sans tige haute, mais avec une tige basse munie d'un contrefort arrière et comprenant un collier rigide articulé de manière inamovible sur le dit contrefort arrière, ce collier étant destiné à entourer le bas de la jambe, et constituant donc une sorte de tige articulée qui présente une grande flexibilité avant/arrière, tant en garantissant une bonne tenue latérale de la jambe de l'utilisateur.In European patent application EP-A-0 416 437 filed by the applicant, published after the priority date attached to this application, and thus constituting a state of the art according to Article 54 (3) EPC, it is described a shoe for the practice of the skater's step, and for hiking without a high rod, but with a low rod provided with a rear buttress and comprising a rigid collar hinged immovablely on said rear buttress, this collar being intended to surround the lower leg, and constituting therefore a kind of articulated rod which has great flexibility front / rear, both ensuring good lateral holding of the user's leg.

Selon cette même demande, l'articulation du collier rigide sur la tige basse est située au niveau de l'extrémité supérieure de celle-ci, le collier s'étendant vers le haut à partir de son articulation, au-delà de l'extrémité supérieure de la tige.According to this same request, the articulation of the rigid collar on the low rod is located at the upper end thereof, the collar extending upward from its articulation, beyond the end. upper stem.

Ce document enseigne par conséquent la manière d'obtenir, à partir d'une chaussure à tige basse, une chaussure à tige haute, qui de plus est articulée, mais ne résoud pas le problème posé, à savoir offrir une chaussure pouvant être employée à la fois pour la pratique du pas alternatif et du pas de patineur.This document therefore teaches how to obtain, from a shoe with a low upper, a shoe with a high upper, which moreover is articulated, but does not solve the problem posed, namely to offer a shoe that can be used for both for the practice of the alternative step and the skater step.

Il est également connu dans une chaussure de ski de fond de type skate vendue sous la dénomination commerciale Karhu, de rendre amovible un collier du type précité, mais dans cette chaussure connue un tel collier ne constitue pas en soi une tige haute, et ne fait que renforcer une chaussure initialement conçue avec une tige haute, donc inamovible, dans la zone de la cheville, pour un meilleur maintien de celle-ci. On comprend bien que, dans ce cas, le fait d'ôter le collier ne permet pas d'obtenir une chaussure à tige basse, utilisable pour la pratique du pas alternatif et ne permet d'obtenir qu'une chaussure à tige haute qui ne serait plus renforcée.It is also known in a cross-country ski boot type skate sold under the trade name Karhu, to make removable a collar of the aforementioned type, but in this known shoe such a collar does not in itself constitute a high rod, and does not that reinforce a shoe originally designed with a high, therefore irremovable upper, in the ankle area, for better support thereof. It is understood that, in this case, the fact of removing the collar does not make it possible to obtain a shoe with a low upper, usable for the practice of the alternative step and only allows to obtain a shoe with a high upper which would be further strengthened.

Non seulement un tel agencement ne permet pas non plus de résoudre le problème posé, mais de plus, les moyens de fixation du collier sur la chaussure prévus, sont inadaptés pour un retrait ou une mise en place rapide du collier sur la piste, pour un changement de technique, lors d'une course.Not only does such an arrangement not make it possible to solve the problem posed, but in addition, the means for fixing the collar to the shoe provided are unsuitable for rapid removal or positioning of the collar on the track, for a change of technique, during a race.

En effet, ces moyens de fixation consistent en un clou déformable élastiquement issu du contrefort arrière et formé d'une pluralité de bras élastiques parallèles disposés autour de l'axe transversal d'articulation du collier, et qui s'engagent par une action transversale, dans un trou cylindrique du collier jusqu'à ce que des crochets posés en corolle sur l'extrémité des dits bras, viennent s'encliqueter élastiquement sur la face externe du collier en émergeant de celle-ci.In fact, these fixing means consist of an elastically deformable nail coming from the rear buttress and formed of a plurality of parallel elastic arms arranged around the transverse axis of articulation of the collar, and which engage by a transverse action, in a cylindrical hole of the collar until the hooks placed in a corolla on the end of the said arms, snap elastically onto the external face of the collar emerging from it.

Par conséquent, une telle corolle constitue une saillie susceptible d'être dangereuse en cas de chute ou d'accrochage avec un autre skieur. De plus, de tels moyens de fixation nécessitent pour le retrait du collier l'utilisation d'un outil de serrage apte à pincer la corolle formée par l'extrémité des bras, rendant donc un tel retrait manuellement difficile (voire impossible), étant donnée la faible surface de préhension disponible, souvent enneigée de surcroît.Consequently, such a corolla constitutes a projection liable to be dangerous in the event of a fall or a collision with another skier. In addition, such fixing means require for the removal of the collar the use of a tightening tool capable of pinching the corolla formed by the end of the arms, thus making such manual removal difficult (if not impossible), given the small grip surface available, often snow-covered.

Il est également connu par le brevet US-A-4,019,267, et correspondant au préambule de la revendication 1, un dispositif d'assemblage d'un collier sur une chaussure de ski alpin par l'intermédiaire d'une ouverture globalement circulaire réalisée de part et d'autre du collier et apte à être engagée à force sur un plot cylindrique de diamètre plus grand, afin d'assurer la retenue du collier après fixation.It is also known from patent US-A-4,019,267, and corresponding to the preamble of claim 1, a device for assembling a collar on an alpine ski boot by means of a generally circular opening made by and on the other side of the collar and capable of being forcibly engaged on a cylindrical stud of larger diameter, in order to ensure the retention of the collar after fixing.

On comprend bien que de tels moyens rendent difficilement amovible le collier sauf à détériorer voire à détruire celui-ci par actions répétées sur le pourtour de la boutonnière. Par ailleurs, une telle amovibilité n'est pas recherchée en ski alpin et le dispositif d'assemblage décrit concerne uniquement la fabrication proprement dite.It is understood that such means make it difficult to remove the collar except to damage or even destroy it by repeated actions around the periphery of the buttonhole. Furthermore, such removableness is not sought in alpine skiing and the assembly device described relates only to the actual manufacturing.

Le but de la présente invention est de remédier à ces divers inconvénients et de fournir une chaussure de sport à double usage, c'est-à-dire à tige basse ou à tige haute articulée, transformable aisément avec des moyens simples et sans nécessiter d'outils spéciaux.The object of the present invention is to remedy these various drawbacks and to provide a dual-use sports shoe, that is to say with a low upper or a high articulated upper, easily transformable with simple means and without requiring d 'special tools.

A cet effet, l'invention concerne une chaussure de sport notamment pour la marche et le ski de fond, obtenue à partir d'une tige basse munie d'un contrefort arrière et comprenant un collier rigide destiné à entourer le bas de la jambe et articulé sur le contrefort arrière de la tige au niveau supérieur de celle-ci, le collier s'étendant vers le haut à partir de son articulation au-delà de l'extrémité de la tige, et comportent de part et d'autre de sa zone d'articulation chevauchant le haut de la tige, des moyens de verrouillage qui lui sont propres, et qui sont constitués par une boutonnière déformable, pour permettre son engagement par déformation sur la tête d'un clou solidaire du contrefort, dont les dimensions sont supérieures à celles de la boutonnière caractérisée en ce que la boutonnière comporte au moins une partie élastiquement déformable hors de son plan pour permettre l'introduction de la tête du clou dans un évidement définissant un passage d'une valeur au moins égale au diamètre de la dite tête et débouchant dans un trou cylindrique dans lequel s'engage le clou ou une saillie cylindrique obtenue de matière avec le contrefort et dont le clou est rendu solidaire, le dit trou étant d'un diamètre inférieur à celui de la tête du clou proprement dit ou saillie, pour constituer des moyens de verrouillage aptes à rendre le collier amovible manuellement.To this end, the invention relates to a sports shoe in particular for walking and cross-country skiing, obtained from a low rod provided with a rear buttress and comprising a rigid collar intended to surround the bottom of the leg and articulated on the rear buttress of the rod at the upper level thereof, the collar extending upwards from its articulation beyond the end of the rod, and comprising on either side of its articulation zone overlapping the top of the rod, its own locking means, which consist of a deformable buttonhole, to allow its engagement by deformation on the head of a nail secured to the buttress, the dimensions of which are greater than those of the buttonhole, characterized in that the buttonhole comprises at least one elastically deformable part out of its plane to allow the introduction of the head of the nail into a recess defining a passage of a value at least equal to the diameter of the said head and opening into a cylindrical hole in which the nail engages or a cylindrical projection obtained in one piece with the buttress and the nail of which is made integral, the said hole was nt of a diameter less than that of the head of the actual nail or projection, to form locking means capable of making the collar removable manually.

De cette manière, est obtenue une chaussure à double usage, plus particulièrement adaptée au pas de patineur ou à la randonnée, si l'on met en place le collier permettant de constituer une chaussure à tige haute, ou bien plus particulièrement adaptée au pas alternatif ou à la marche si, au contraire, on ôte le collier permettant ainsi de retrouver une chaussure d'origine, à tige basse.In this way, a dual-use shoe is obtained, more particularly suitable for skating or hiking, if the collar is used to constitute a shoe with a high upper, or more particularly suitable for alternative walking or walking if, on the contrary, the collar is removed, thus making it possible to find an original shoe, with a low upper.

Les clous à tête large formant boutons peuvent être situés sur un axe transversal sensiblement au niveau de l'articulation naturelle de la jambe sur le pied, ce qui permet un meilleur confort puisqu'il y a concordance entre les deux axes.The large head nails forming buttons can be located on a transverse axis substantially at the level of the natural articulation of the leg on the foot, which allows a better comfort since there is concordance between the two axes.

Selon une forme de réalisation de l'invention, les clous sont rendus solidaires du contrefort, par introduction en force dans des trous de saillies cylindriques obtenus de matière avec le contrefort.According to one embodiment of the invention, the nails are made integral with the buttress, by force-fitting into holes in cylindrical projections obtained in material with the buttress.

Selon un exemple de réalisation de l'invention, la boutonnière est définie par un segment de cercle, dont la corde est d'une valeur au moins égale au diamètre de la tête de clou et par une fente longitudinale débouchant par une de ses extrémités dans le segment de cercle et par son autre extrémité dans une partie cylindrique, dont le diamètre est au moins égal à celui des saillies, la fente longitudinale étant délimitée transversalement par des lèvres déformables élastiquement hors de leur plan lors de l'introduction de la tête de clou et dans leur plan lors du passage de la saillie, jusqu'à encliquetage élastique de celle-ci dans le trou cylindrique, dont le diamètre est plus grand que la largeur de la fente, pour définir à proximité de l'entrée du trou deux bourrelets de retenue du collier sur la saillie.According to an exemplary embodiment of the invention, the buttonhole is defined by a segment of a circle, the cord of which is of a value at least equal to the diameter of the nail head and by a longitudinal slot opening through one of its ends in the circle segment and by its other end in a cylindrical part, the diameter of which is at least equal to that of the projections, the longitudinal slot being delimited transversely by lips deformable elastically out of their plane during the introduction of the head of nail and in their plane during the passage of the projection, until elastic snap thereof in the cylindrical hole, the diameter of which is greater than the width of the slot, to define near the entrance of the hole two collar retaining beads on the projection.

D'autres exemples de réalisation apparaîtront au cours de la description qui va suivre, qui fera également apparaître d'autres caractéristiques, pour mieux comprendre l'invention, en référence des dessins schématiques annexés sur lesquels :

  • la figure 1 est une vue de côté de la chaussure selon l'invention.
  • les figures 2 et 3 sont des vues schématiques partielles, à plus grande échelle, selon la figure 1 représentant un collier suivant deux phases successives de montage.
  • les figures 4 et 7 sont des vues schématiques partielles montrant différents exemples de réalisation des moyens de verrouillage du collier selon l'invention.
  • la figure 8 est une vue en coupe partielle selon la ligne VIII VIII de la figure 1.
Other exemplary embodiments will appear during the description which follows, which will also reveal other characteristics, to better understand the invention, with reference to the appended schematic drawings in which:
  • Figure 1 is a side view of the shoe according to the invention.
  • Figures 2 and 3 are partial schematic views, on a larger scale, according to Figure 1 showing a collar according to two successive stages of assembly.
  • Figures 4 and 7 are partial schematic views showing different embodiments of the locking means of the collar according to the invention.
  • FIG. 8 is a partial sectional view along line VIII VIII of FIG. 1.

La chaussure représentée à titre d'exemple sur la figure 1 est particulièrement adaptée pour le pas de patineur ou skating ou pour la randonnée et présente extérieurement l'allure d'une chaussure constituée à l'origine d'une tige basse 10, c'est-à-dire d'une tige dont les parties rigides ne s'étendent pas en hauteur au-delà des malléoles, d'une semelle externe 11 et d'un système de laçage 20 de type connu en soi.The shoe shown by way of example in FIG. 1 is particularly suitable for skating or skating or for hiking and has the appearance of a shoe originally made up of a low rod 10, c ' that is to say a rod whose rigid parts do not extend in height beyond the malleoli, an outer sole 11 and a lacing system 20 of a type known per se.

La tige 10 est en matériau souple et est munie au niveau du talon d'un contrefort arrière 12 pouvant être réalisé de toute façon connue en soi.The rod 10 is made of flexible material and is provided at the heel with a rear buttress 12 which can be produced in any way known per se.

Ce contrefort 12 est de préférence réalisé en matière synthétique rigide, et s'étend sur toute la partie arrière de la chaussure, tout autour du talon de celle-ci.This buttress 12 is preferably made of rigid synthetic material, and extends over the entire rear part of the shoe, all around the heel thereof.

Ce contrefort 12 s'étend, dans la zone des malléoles, jusqu'en haut de la tige, pour la réception d'un collier articulé 13, et présente à son extrémité supérieure, au niveau de ces malléoles, de chaque côté de la chaussure, une saillie ou bossage 12a s'étendant vers l'extérieur sensiblement perpendiculairement à la paroi du contrefort et apte à être introduit dans un trou cylindrique associé 13a, ménagé sur chaque côté du collier 13 (cf figure 2).This buttress 12 extends, in the region of the malleoli, to the top of the upper, for the reception of an articulated collar 13, and has at its upper end, at the level of these malleoli, on each side of the shoe , a projection or boss 12a extending outward substantially perpendicular to the wall of the buttress and adapted to be introduced into an associated cylindrical hole 13a, formed on each side of the collar 13 (see Figure 2).

Chaque bossage 12a est par ailleurs muni d'un trou 12b pour la fixation du collier 13 au moyen de clous 19 (cf figure 8). Par cette disposition, le collier 13 peut donc être monté articulé sur les parties en saillie 12a du contrefort de la tige à l'extrémité supérieure de celle-ci.Each boss 12a is also provided with a hole 12b for fixing the collar 13 by means of nails 19 (see FIG. 8). By this arrangement, the collar 13 can therefore be mounted articulated on the projecting parts 12a of the buttress of the rod at the upper end of the latter.

Les têtes 19a des clous 19, une fois engagés dans les trous 12b, servent d'arrêt au collier 13, tandis que les bossages 12a matérialisent l'axe de rotation 30 de ce collier sur la tige. On remarquera que les têtes 19a ont un diamètre D bien plus grand que celui du clou proprement dit.The heads 19a of the nails 19, once engaged in the holes 12b, serve to stop the collar 13, while the bosses 12a materialize the axis of rotation 30 of this collar on the rod. It will be noted that the heads 19a have a diameter D much larger than that of the nail proper.

On notera ainsi que les clous 19 peuvent être remplacés par tous autres modes de liaison permettant une rotation tels que des rivets. Cependant, l'utilisation de clous 19 est particulièrement avantageuse, car elle permet une pose par simple application d'une pression sur la tête 19a, sans nécessiter de contre-pièce comme dans le cas de rivets.It will thus be noted that the nails 19 can be replaced by any other connection method allowing rotation such as rivets. However, the use of nails 19 is particularly advantageous, because it allows installation by simple application of pressure on the head 19a, without requiring a counterpart as in the case of rivets.

Par ailleurs, les clous 19 seront avantageusement constitués en un matériau relativement souple par rapport à un rivet en métal, tel que "Delrin", selon une marque déposée, de façon que leur tête 19a suive les déformations éventuelles du collier rigide 13, par exemple lors d'une torsion de la jambe, une telle construction permettant d'éviter l'arrachement de ces clous lors d'une telle torsion.Furthermore, the nails 19 will advantageously be made of a relatively flexible material compared to a metal rivet, such as "Delrin", according to a registered trademark, so that their head 19a follows the possible deformations of the rigid collar 13, for example when of a twist of the leg, such a construction making it possible to avoid tearing of these nails during such a twist.

Le collier articulé 13 est constitué par une manchette en matériau rigide et notamment en un matériau synthétique tel que "Pebax", selon une marque déposée.The articulated collar 13 is constituted by a cuff made of rigid material and in particular of a synthetic material such as "Pebax", according to a registered trademark.

Ce collier 13 s'étend vers le haut jusqu'au bas du mollet et entoure tout le bas de jambe. Il est ouvert à sa partie avant pour permettre la mise en place du pied dans la chaussure et est muni de moyens de serrage 15 de type connu en soi, et constitués par exemple par des moyens auto-agrippants.This collar 13 extends up to the bottom of the calf and surrounds the entire lower leg. It is open at its front part to allow the foot to be placed in the shoe and is provided with clamping means 15 of a type known per se, and constituted for example by hook-and-loop means.

Ce collier 13 est par ailleurs muni à l'arrière d'une échancrure 13b destinée à faciliter la rotation vers l'arrière de ce collier (cf position en pointillés sur la figure 1).This collar 13 is also provided at the rear with a notch 13b intended to facilitate the rearward rotation of this collar (cf. position in dotted lines in FIG. 1).

Ainsi qu'on le concevra aisément, la hauteur importante du collier 13 permet une excellente tenue latérale de la jambe lors de la pratique du skating ou de la randonnée, une telle hauteur permettant en outre une plus grande répartition sur la jambe des efforts de réaction et, par conséquent, un meilleur confort pour l'utilisateur.As will be readily appreciated, the large height of the collar 13 allows excellent lateral hold of the leg during skating or hiking, such a height also allowing greater distribution of the reaction forces over the leg. and, therefore, better comfort for the user.

En effet, l'articulation totale et indépendante du collier 13 sur la tige permet à celui-ci de pivoter librement et sans aucune gêne pour l'utilisateur. D'ailleurs, la languette 42, de même que le système de laçage 40, de la chaussure ne s'étend, en hauteur, pas au-delà du pli de flexion du pied de l'utilisateur, de façon à ne pas en gêner la flexion.Indeed, the total and independent articulation of the collar 13 on the rod allows the latter to pivot freely and without any discomfort for the user. Moreover, the tongue 42, like the lacing system 40, of the shoe does not extend, in height, not beyond the flexion fold of the user's foot, so as not to hinder it. bending.

La position de l'axe d'articulation 30 du collier 13 sur la tige, est choisie de façon à réaliser le meilleur compromis entre le confort et un axe le plus proche possible de la position naturelle de l'articulation tibio-tarsienne, en fonction des différentes morphologies et tailles de pied..The position of the hinge pin 30 of the collar 13 on the rod is chosen so as to achieve the best compromise between comfort and an axis as close as possible to the natural position of the tibio-tarsal joint, depending different morphologies and foot sizes.

Selon l'invention, le collier 13 comporte dans sa zone d'articulation chevauchant le haut de la tige 10 des moyens de verrouillage qui lui sont propres, aptes à le rendre amovible manuellement et coopérant au montage avec les bossages en saillie 12a solidaires du contrefort 12 et matérialisant l'axe d'articulation transversal 30.According to the invention, the collar 13 comprises in its articulation zone overlapping the top of the rod 10 with its own locking means, capable of making it removable manually and cooperating in mounting with the projecting bosses 12a integral with the buttress 12 and materializing the transverse articulation axis 30.

Ces moyens sont disposés de part et d'autre de la zone d'articulation du collier 13 et sont constitués respectivement par une boutonnière 50 d'axe de symétrie XX' (fig. 1 à 3) définie, d'une part, par un segment de cercle 50a évidé dont la longueur de corde C est d'une valeur au moins égale au diamètre D de la tête 19a du clou 19, et d'autre part, par une fente longitudinale 51, disposée symétriquement à l'axe XX' et débouchant par une de ses extrémités 51 a dans le segment de cercle 50a et par son autre extrémité 51b dans une ouverture circulaire 13a, dont le diamètre D1 est au moins égal à celui des saillies 12a qui s'y engagent. La fente longitudinale 50 est délimitée transversalement par des lèvres 51c et 51d, déformables élastiquement hors de leur plan, lors de l'introduction de la tête 19a de clou 19. Cette introduction s effectue d'abord en introduisant de manière inclinée, un côté de la tête 19a dans le segment de cercle 50a, puis en exerçant une pression latérale sur le collier 13, tendant à déformer les dites lèvres hors de leur plan, on fait passer l'autre partie de la tête 19a par-dessus les lèvres 51c, 51d qui reprennent alors leur position initiale, selon un plan d'origine, derrière la tête 19a du clou 19.These means are arranged on either side of the articulation zone of the collar 13 and are constituted respectively by a buttonhole 50 with an axis of symmetry XX ′ (FIGS. 1 to 3) defined, on the one hand, by a segment of a hollowed-out circle 50a, the length of cord C of which is at least equal to the diameter D of the head 19a of the nail 19, and on the other hand, by a longitudinal slot 51, arranged symmetrically to the axis XX ' and opening through one of its ends 51a into the circle segment 50a and through its other end 51b into a circular opening 13a, the diameter D1 of which is at least equal to that of the projections 12a which engage therein. The longitudinal slot 50 is delimited transversely by lips 51c and 51d, elastically deformable out of their plane, during the introduction of the nail head 19a 19. This introduction is carried out first by introducing in an inclined manner, one side of head 19a in the segment of circle 50a, then by exerting lateral pressure on the collar 13, tending to deform the said lips out of their plane, the other part of the head 19a is passed over the lips 51c, 51d which then resume their initial position, according to an original plane, behind the head 19a of the nail 19.

Lors de cette introduction, les lèvres 51c et 51d subissent également une autre déformation élastique tendant à les écarter latéralement, dans un même plan cette fois, au passage de la saillie 12a dans un sens F d'introduction du collier 13, et cela jusqu'à encliquetage élastique de la dite saillie 12a dans le trou cylindrique 13a. Le diamètre D1 du trou 13a est plus grand que la largeur l de la fente 51, pour définir à proximité de son entrée, deux bourrelets 52, 53 de retenue du collier 13 sur la saillie 12a.During this introduction, the lips 51c and 51d also undergo another elastic deformation tending to separate them laterally, in the same plane this time, when the projection 12a passes in a direction F of introduction of the collar 13, and this until with elastic snap-fitting of said projection 12a in the cylindrical hole 13a. The diameter D1 of the hole 13a is greater than the width l of the slot 51, to define, near its entry, two beads 52, 53 for retaining the collar 13 on the projection 12a.

L'axe longitudinal XX' de la boutonnière forme un angle a par rapport à l'axe globalement vertical YY' du collier 13, sensiblement égal X 45° mais, bien entendu, l'axe XX' de la boutonnière peut se confondre avec l'axe YY' du collier 13 ou former un angle a différent.The longitudinal axis XX 'of the buttonhole forms an angle a with respect to the generally vertical axis YY' of the collar 13, substantially equal to X 45 ° but, of course, the axis XX 'of the buttonhole can be confused with the 'axis YY' of the collar 13 or form a different angle.

Pour permettre une introduction plus aisée de la saillie 12a dans la fente 51, celle-ci comporte une partie évasée formée par les bords d'introduction en forme de rampes 51e et 51f du côté de l'extrémité 51a de la dite fente 51 tandis que le reste de la fente 51 présente une largeur l sensiblement constante de valeur inférieure au diamètre D1 de la saillie 12a.To allow easier introduction of the projection 12a into the slot 51, the latter has a flared part formed by the ramp-shaped introduction edges 51e and 51f on the side of the end 51a of said slot 51 while the rest of the slot 51 has a substantially constant width l of value less than the diameter D1 of the projection 12a.

Le mode de réalisation représenté à la figure 4 diffère essentiellement du précédent, en ce que là boutonnière 60 est définie par un trou cylindrique 61 partiellement délimité sur sa périphérie par deux branches 62, 63 en forme de secteur annulaire formant machoire. Les branches 62, 63 prennent naissance sur le collier 13 même, et sont définies d'une part par le trou 61 et d'autre part par une fente demi-circulaire de plus grand diamètre 69, et leurs extrémités libres 62a et 63a sont déformables hors de leur plan, pour permettre leur engagement sous la tête 19a du clou 19.The embodiment shown in FIG. 4 essentially differs from the previous one, in that the buttonhole 60 is defined by a cylindrical hole 61 partially delimited on its periphery by two branches 62, 63 in the form of an annular sector forming a jaw. The branches 62, 63 arise on the collar 13 itself, and are defined on the one hand by the hole 61 and on the other hand by a semicircular slot of larger diameter 69, and their free ends 62a and 63a are deformable out of their plan, to allow their engagement under the head 19a of the nail 19.

L'introduction de la tête 19a du clou 19 s'effectue sensiblement comme décrit précédemment, en faisant passer par inclinaison une première partie de la tête 19a par-dessus une branche, 62 par exemple, puis au-dessus de l'autre 63 par un geste de redressement appliqué à la dite tête.The introduction of the head 19a of the nail 19 is carried out substantially as described above, by tilting a first part of the head 19a over a branch, 62 for example, then over the other 63 by a righting gesture applied to said head.

Les extrémités libres 62a, 63a délimitent entre elles un passage 64 de largeur l1 inférieure au diamètre D2 du trou cylindrique 61 dans lequel s'engage la saillie ou bossage 12a au montage dans un sens F1, pour définir à l'entrée dudit trou 61, deux bourrelets de retenue 65 et 66. Les extrémités libres 62a et 63a forment un angle tel à définir une partie d'introduction évasée de largeur l2 > l1.The free ends 62a, 63a delimit between them a passage 64 of width l1 less than the diameter D2 of the cylindrical hole 61 in which the projection or boss 12a engages during assembly in a direction F1, to define at the entrance to said hole 61, two retaining beads 65 and 66. The free ends 62a and 63a form an angle such as to define a flared introduction part of width l2> l1.

Le mode de réalisation representé à la figure 5 diffère essentiellement de celui de la figure 4, en ce que un jeu J est prévu entre la périphérie externe des branches 62 et 63 en forme de secteur annulaire et la partie correspondante du collier 13 dont elles sont issues par découpe, de manière à conférer aux dites branches 62, 63 une élasticité transversale dans leur plan.The embodiment shown in Figure 5 differs essentially from that of Figure 4, in that a clearance J is provided between the outer periphery of the branches 62 and 63 in the form of an annular sector and the corresponding part of the collar 13 from which they originate by cutting, so as to give said branches 62, 63 a transverse elasticity in their plane.

Le montage du collier 13 sur la tête 19a s'effectue comme précédemment suivant un sens d'engagement F2.The mounting of the collar 13 on the head 19a is carried out as previously in a direction of engagement F2.

Selon une variante de réalisation représentée à la figure 6, la boutonnière 70 est définie par un trou circulaire 71 d'un diamètre D₃ sensiblement égal à celui de la saillie 12a et partiellement délimité sur sa périphérie par une languette 72, disposée radialement par rapport au centre O du trou 71. La languette 72 est délimitée par des évidements latéraux, constitués ici par des saignées 73, 74 prolongées par des découpes 75, 76 aptes à rendre la dite languette 72 élastiquement déformable hors de son plan, ceci afin de permettre l'engagement de la dite boutonnière 70 sur la tête 19a du clou 19, dont le passage dans le trou 71 est rendu possible par enfoncement du clou dans le collier 13, ce qui provoque l'effacement de la languette 72 hors de son plan, puis son retour élastique dans son plan, derrière la tête 19a, en appui ainsi sur toute la surface entourant le trou 71.According to an alternative embodiment shown in FIG. 6, the buttonhole 70 is defined by a circular hole 71 with a diameter D₃ substantially equal to that of the projection 12a and partially delimited on its periphery by a tongue 72, arranged radially relative to the center O of the hole 71. The tongue 72 is delimited by lateral recesses, constituted here by grooves 73, 74 extended by cutouts 75, 76 capable of making said tongue 72 elastically deformable out of its plane, this in order to allow the engagement of said buttonhole 70 on the head 19a of the nail 19, the passage of which in the hole 71 is made possible by driving the nail into the collar 13, which causes the tongue 72 to be erased out of its plane, then its elastic return in its plane, behind the head 19a, thus resting on the entire surface surrounding the hole 71.

Le passage défini par la languette 72 rabattue avec l'extrémité opposée du trou 71 est au moins égal au diamètre D₃ de la tête 19a du clou 19.The passage defined by the tongue 72 folded down with the opposite end of the hole 71 is at least equal to the diameter D₃ of the head 19a of the nail 19.

Le mode de réalisation représenté à la figure 7 diffère essentiellement du précédent de la figure 6, en ce que la boutonnière 80 est de forme globalement rectangulaire, dont la longueur L est sensiblement égale au diamètre de la tête 19a du clou 19, pour permettre son passage au montage.The embodiment shown in FIG. 7 differs essentially from the previous one in FIG. 6, in that the buttonhole 80 is of generally rectangular shape, the length L of which is substantially equal to the diameter of the head 19a of the nail 19, to allow its go to editing.

Dans le rectangle précité s'inscrit un cercle définissant des évidements en arc de cercle 81 et 82 dans lesquels est apte à se loger la saillie 12a.In the aforementioned rectangle is inscribed a circle defining recesses in an arc 81 and 82 in which is adapted to accommodate the projection 12a.

L'évidement 81 est ainsi ménagé dans une languette élastique 83 droite, déformable élastiquement hors de son plan, grâce à deux saignées latérales parallèles 84 et 85.The recess 81 is thus formed in a straight elastic tongue 83, elastically deformable out of its plane, thanks to two parallel lateral grooves 84 and 85.

La languette 83 est réalisée sur un des grands côtés du rectangle, correspondant à la longueur L, alors que sur le côté opposé 86 est ménagé l'évidement 82, ce côté 86 constituant donc une face d'appui rigide.The tongue 83 is produced on one of the long sides of the rectangle, corresponding to the length L, while on the opposite side 86 is formed the recess 82, this side 86 therefore constituting a rigid bearing face.

C'est sur cette face 86, que prend appui initialement la tête 19a par un engagement incliné, dans le sens F₅, puis, par pivotement sur elle-même en s'arcboutant sur la dite face 86, elle vainc la force élastique de la languette 83, pour provoquer son effacement. Après passage de la tête 19a, la languette reprend naturellement sa position dans son plan, derrière la dite tête 19a.It is on this face 86 that the head 19a initially bears by an inclined engagement, in the direction F₅, then, by pivoting on itself by bending over said face 86, it overcomes the elastic force of the tab 83, to cause its erasure. After passage of the head 19a, the tongue naturally resumes its position in its plane, behind the said head 19a.

Sur les deux figures précédentes 6 et 7, la tête 19a a été représentée en pointillés en superposition sur les boutonnières 70 et 80.In the two preceding figures 6 and 7, the head 19a has been shown in dotted lines superimposed on the buttonholes 70 and 80.

Bien d'autres variantes auraient pu être imaginées, par conséquent, celles décrites ci-dessus ne sont pas limitatives.Many other variants could have been imagined, therefore, those described above are not limiting.

Claims (5)

  1. Sports shoe, in particular for walking and cross-country skiing, obtained from a low upper (10) fitted with a rear stiffener (12) and comprising a rigid collar (13) intended to surround the lower leg and articulated onto the rear stiffener (12) of the upper (10) at the upper level thereof, the collar (13) extending upwards from its articulation beyond the end of the upper (10), and including, on either side of its articulation zone overlapping the top of the upper (10), its own locking means which consist of a buttonhole which is deformable in order to allow it to engage by deformation on the bead of a stud which is integral with the stiffener and whose dimensions are larger than those of the buttonhole, characterized in that the buttonhole includes at least one part (51c, 51d; 62, 63; 72, 73) which is elastically deformable out of its plane in order to allow insertion of the head (19a) of the stud (19) into a recess (50, 51; 73 to 76; 84, 85; 64 to 66) defining a passage with a value at least equal to the diameter of the said head (19a) and emerging in a cylindrical hole (13a, 61, 71, 81) in which engages the stud (19) or a cylindrical projection (12a) integrally formed with the stiffener (12) and with which the stud is securely attached, the said hole having a diameter smaller than that of the head (19a) of the stud (19) but substantially equal to that of the stud (19) proper or the projection (12a), in order to constitute locking means capable of making the collar (13) manually removable.
  2. Sports shoe according to Claim 1, characterized in that the studs (19) are securely attached to the stiffener 12 by forcibly inserting them into the holes (12b) of the cylindrical projections (12a) integrally formed with the stiffener (12).
  3. Sports shoe according to Claim 1, characterized in that the buttonhole (50) is defined by a recessed circle segment (50a), the chord (c) of which has a value at least equal to the diameter (D) of the head (19a) of the stud (19) and by a longitudinal slot (51) emerging via one of its ends (51a) in the circle segment and via its other end (51b) in a cylindrical part (13a) whose diameter (D1) is at least equal to that of the projections (12a), the longitudinal slot (51), being transversely bounded by lips (51c and 51d) which are elastically deformable out of their plane during insertion of the stud head (19a) and in their plane during passage of the projection (12a), until it elastically snaps into the cylindrical hole (13a) whose diameter (D1) is larger than the width (1) of the slot (51), in order to define, in proximity to the entry of the hole (13a), two strips (52, 53) for retaining the collar (13) on the projection (12a).
  4. Sports shoe according to Claim 1, characterized in that the buttonhole (60) is defined by a cylindrical hole (61) partially bounded on its periphery by two branches (62, 63) in the form of an annular sector forming a jaw starting on the collar (13) itself, from which the branches are made by being cut out and whose free ends (62a and 63a) are elastically deformable out of their plane by virtue of a play (J) in order to allow them to engage under the head (19a) of the stud (19), and defining between them a passage (64) of width (11) less than the diameter (D2) of the cylindrical hole (61) in which the projection (12a) engages during mounting, in order to define, at the entry of the said hole (61), two strips (65, 66) for retaining the collar (13) on the projection (12a).
  5. Sports shoe according to Claim 1, characterized in that the buttonhole (70, 80) is defined by a cylindrical hole (71, 81) with a diameter (D3) essentially equal to, that of the projection (12a) and bounded by at least one radial tongue (72, 83) which is elastically deformable out of its plane in order to allow engagement of the said buttonhole (70, 80) on the head (19a) of the stud (19), and the passage of the latter being made possible by two side recesses (73, 74 and 84, 85) emerging in the said cylindrical hole (71, 81) and defining with it a passage of width at least equal to the diameter of the said head (19a).
EP91117102A 1990-11-06 1991-10-08 Sports shoe, in particular for walking and cross-country skiing provided with detachable leg support Expired - Lifetime EP0484683B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9013889 1990-11-06
FR9013889A FR2668687B1 (en) 1990-11-06 1990-11-06 SPORTS SHOE ESPECIALLY FOR WALKING AND CROSS-COUNTRY SKIING WITH A REMOVABLE COLLAR.

Publications (2)

Publication Number Publication Date
EP0484683A1 EP0484683A1 (en) 1992-05-13
EP0484683B1 true EP0484683B1 (en) 1995-01-04

Family

ID=9401996

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91117102A Expired - Lifetime EP0484683B1 (en) 1990-11-06 1991-10-08 Sports shoe, in particular for walking and cross-country skiing provided with detachable leg support

Country Status (4)

Country Link
EP (1) EP0484683B1 (en)
AT (1) ATE116529T1 (en)
DE (1) DE69106483T2 (en)
FR (1) FR2668687B1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1257571B (en) * 1992-01-16 1996-02-01 Nordica Spa FOOTWEAR STRUCTURE, PARTICULARLY FOR SKIING
FR2726976B1 (en) * 1994-11-17 1996-12-20 Rossignol Sa SPORTS SHOE, ESPECIALLY WALKING OR CROSS-COUNTRY SKIING
FR2771264B1 (en) * 1997-11-24 1999-12-17 Rossignol Sa FOOTWEAR FOR CROSS-COUNTRY SKIING
ITPN20080026U1 (en) * 2008-10-29 2010-04-30 Abe Sport Group S R L "SYSTEM FOR THE REMOVABLE ASSEMBLY OF A LEG TO A HULL OF A SPORTS SHOE, AND SPORTS SHOE PROVIDED WITH THIS SYSTEM"
DE102019003508A1 (en) * 2019-05-20 2020-11-26 Michael Henze Two-piece high boot

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2043998A5 (en) * 1969-05-14 1971-02-19 Rosaz Albert
US4019267A (en) * 1976-01-07 1977-04-26 Dorofix Design Establishment Ski boot structure
DE8807537U1 (en) * 1987-12-21 1988-07-28 Alpina Tovarna Obutve, n.sol.o., &Zcaron;iri Cross-country ski boot
FR2651416B1 (en) * 1989-09-07 1992-04-30 Salomon Sa CROSS COUNTRY SKI SHOE.
NO168744C (en) * 1989-12-05 1994-04-18 Alfa Skofabrik As Device by cross-country shoe / boot

Also Published As

Publication number Publication date
ATE116529T1 (en) 1995-01-15
FR2668687B1 (en) 1992-12-31
FR2668687A1 (en) 1992-05-07
DE69106483D1 (en) 1995-02-16
DE69106483T2 (en) 1995-05-11
EP0484683A1 (en) 1992-05-13

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