EP2082658A1 - Boot comprising a bottom part and a top part - Google Patents

Boot comprising a bottom part and a top part Download PDF

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Publication number
EP2082658A1
EP2082658A1 EP09000271A EP09000271A EP2082658A1 EP 2082658 A1 EP2082658 A1 EP 2082658A1 EP 09000271 A EP09000271 A EP 09000271A EP 09000271 A EP09000271 A EP 09000271A EP 2082658 A1 EP2082658 A1 EP 2082658A1
Authority
EP
European Patent Office
Prior art keywords
collar
shoe
medial
lateral
elastic means
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP09000271A
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German (de)
French (fr)
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EP2082658B1 (en
Inventor
Bruno Berthet
Thierry Donnadieu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Salomon SAS
Original Assignee
Salomon SAS
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Filing date
Publication date
Application filed by Salomon SAS filed Critical Salomon SAS
Publication of EP2082658A1 publication Critical patent/EP2082658A1/en
Application granted granted Critical
Publication of EP2082658B1 publication Critical patent/EP2082658B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • A43B5/0427—Ski or like boots characterised by type or construction details
    • A43B5/0452—Adjustment of the forward inclination of the boot leg
    • A43B5/0454—Adjustment of the forward inclination of the boot leg including flex control; Dampening means
    • A43B5/0464—Adjustment of the forward inclination of the boot leg including flex control; Dampening means with exchangeable parts
    • 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 invention relates to a shoe, especially sports, and more particularly to a shoe for skiing, snowshoeing, or walking sports.
  • Such shoes can be used in areas such as cross-country skiing or telemark skiing, snowshoeing, walking or running flat or mountain, or other.
  • a shoe may comprise a high stem, that is to say which has a low portion and a high portion.
  • the lower portion covers the foot, and the upper portion surrounds the ankle of a user.
  • Some shoes are additionally provided with a collar that extends in part at least at the level of the upper portion. Generally the collar covers the upper portion, and is connected to the rest of the stem by a transverse joint.
  • the collar is used to provide transverse flexural strength.
  • the collar is opposed to a lateral inclination of the leg, which avoids certain injuries of the ankle.
  • the collar follows the movements of flexion or extension of the foot relative to the lower leg.
  • the collar flips freely according to its articulation, to approach or move away from the heel. This allows the user to push longitudinally and alternately with the legs.
  • the shoe generally comprises an elastic means which opposes an inclination of the collar towards the heel.
  • the elastic means is constrained.
  • the latter solicits the collar in a sense of distance from the heel, that is to say in a direction of flexion of the foot to the lower leg.
  • the consequence is to facilitate a lifting movement of the ski spatula. As a result, it takes less effort to bring the ski forward.
  • the energy accumulated by the elastic means, in a thrust phase with the leg is restored in a return phase of the ski forward.
  • the return assistance of the ski is not always adapted to the needs of the user.
  • the latter has indeed its own characteristics, such as size, weight, level of practice, or other.
  • the intensity of the stress exerted by the elastic means is not always perfectly adapted to the user.
  • the invention is particularly intended to make a shoe more versatile, that is to say, not or little specialized. This means that the invention wants to allow different practices, especially in driving styles, with the same shoe.
  • the invention also seeks to better adapt the behavior of a shoe to a given user, for a given driving style.
  • the invention provides a shoe comprising a sole and a upper, the shoe extending in length from a heel to a front end, in width between a lateral portion and a medial portion, and in height from the sole to an upper end, the stem comprising a lower portion, an upper portion, and a collar that extends at least partially at the level of the upper portion, the collar being connected to the rest of the stem by a transverse joint, the shoe comprising an elastic means which opposes an inclination of the collar towards the heel.
  • the shoe according to the invention is characterized in that it comprises means for releasably securing the elastic means to the rest of the rod.
  • the elastic means is secured to the rest of the rod in a reversible manner.
  • the user can wear the same shoe, which is provided or not with an elastic means. This is to say that it is possible to change the behavior of the shoe.
  • the same shoe can be adapted to several driving styles.
  • the shoe can be adapted to the needs of the user. This offers a better comfort of use, and reduces the budget necessary for several practices.
  • a cross-country ski boot 1 is provided to accommodate the user's foot.
  • the shoe 1 comprises a tread 2 and a shank 3.
  • the shoe 1 extends in length from a rear end or heel 4 to a front end or tip 5, and in width between a side portion 6 and a medial part 7.
  • the rod 3 comprises a lower portion 10, provided to surround the foot, and a high portion 11, provided to surround the ankle.
  • the boot 1 extends in height from the sole 2 to an upper end 12, that is to say up to the free end of the portion 11 or the rod 3 .
  • the shoe 1 is structured to allow a good flexion of the leg or a smooth running of the foot, as well as the transmission of sensory information or driving impulses. This is why the rod 3 is relatively flexible.
  • the sole can be relatively rigid or more flexible.
  • the shoe 1 further comprises a collar 13 which extends in part at least at the level of the upper portion, as is understood using the figures 1 and 2 .
  • the collar 13 comprises for example a lateral branch 14, a medial branch 15, and a bridge 16 which connects the branches 14, 15 to one another.
  • the bridge 16 is located at the height of the heel 4, that is to say towards the rear of the rod 3 or the upper portion 11. However it could have been placed in front of the upper portion.
  • the bridge 16 comprises, in a nonlimiting manner, a lower arch 17 and an upper arch 18, which brings both high mechanical rigidity and lightness to the collar 13.
  • the lateral branch 14, the medial branch 15 and the bridge 16 form a single piece. This includes for example a plastic material or any equivalent material.
  • the collar 13 further comprises a strap 19 which extends the bridge 16 to surround the upper portion 11 and the lower leg of the user.
  • the strap 19 can be tightened, loosened or opened by any means known to those skilled in the art.
  • the collar 13 is connected to the rest of the rod by a transverse articulation axis 23.
  • the collar 13 can pivot towards the heel 4 or towards the front end 5.
  • the articulation is made by any known technique, as can be seen in part on the figure 4 .
  • the articulation comprises, on the side of the lateral part 6, a pivot 24. This is a part of revolution which comprises a body 25 and a head 26. At the opposite of the head 26, the body 25 is structured to to be secured to the side portion 6 of the rod 3.
  • the body 25 has a free end 27 split and shouldered.
  • the lateral branch 14 of the collar 13 has an orifice 29 intended to be traversed by the body 25 of the pivot 24. This is why the lateral branch 14 pivots along the transverse axis 23. A similar arrangement is provided on the medial side, for the branch 15. Finally the collar pivots along the axis 23.
  • the transverse articulation axis 23 comprises a lateral pivot 24 and a medial pivot, one being coaxial with the other, and that this same articulation has an orifice 29 formed in the lateral branch 14 and a non-referenced orifice formed in the medial branch 15.
  • the lateral and medial pivots may not be coaxial. However, their alignment facilitates the rotation of the collar 13.
  • the joint is located towards the ankle, that is to say towards the boundary between the low and high portions 11, so that the collar 13 accompanies the movement of flexion or extension of the foot relative to the bottom of the leg.
  • the collar 13 keeps the lower leg transversely relative to the foot, especially when the strap 19 is tightened.
  • the one-piece piece of the collar 13 is more rigid than the rest of the rod, in this case more rigid than the lateral part 6 and the medial part 7.
  • the shoe 1 further comprises an elastic means 30, which opposes an inclination of the collar 13 towards the heel 4.
  • the elastic means 30 comprises a lower arch 31 and an upper arch 32 connected to each other at a vertex 33.
  • the latter has a lateral subdivision 34 and a medial subdivision 35.
  • Each arch 31, 32 is provided to bypass the heel 4 above the sole 2.
  • the arches 31, 32 are extended at each other at the subdivisions 34, 35, so that the elastic means forms a single piece. This includes for example a plastic material.
  • the elastic means 30 In the state of rest, the elastic means 30 has the appearance of an open mouth.
  • the boot 1 comprises means for releasably securing the elastic means 30 to the rest of the rod.
  • This allows to associate the elastic means 30 to the rest of the rod reversibly.
  • the user can choose whether or not to use the elastic means 30 and, when using it, can select it from a range of elastic means different stiffnesses. The user can therefore determine some of the characteristics of the shoe. This allows in particular to adapt the shoe to a driving style.
  • the removable fastening means use a joint.
  • This uses the same transverse axis 23 as the articulation of the collar 13.
  • the articulation of the collar 13 and the articulation of the removable fastening means are coaxial.
  • the lateral and medial pivots 24 are common to both joints. This arrangement simplifies the structure of the shoe 1, which reduces manufacturing costs.
  • it may alternatively be considered to shift the joints relative to each other, that is to say to organize them according to two separate axes, parallel to each other or not.
  • the articulation of the removable fastening means comprises the lateral pivot 24 and the medial pivot.
  • Each pivot 24 has a length sufficient to guide, in rotation, both the collar 13 and the elastic means 30.
  • the articulation of the removable means has a lateral orifice 36 formed in the lateral subdivision 34 of the vertex 33 and a medial orifice 37 formed in the medial subdivision 35 of the crown.
  • the lateral orifice 36 is in the form of a circular hole 38 extended towards the arches 31, 32 by a slot 39.
  • the width of the slot 39 is smaller than the diameter of the hole 38.
  • medial orifice 37 is in the form of a circular hole 40 extended towards the arches 31, 32 by a slot 41.
  • the width of the slot 41 is smaller than the diameter of the hole 40.
  • the upper portion 11 of the rod 3 occupies a natural position. This corresponds to an orthostatic position of the user's leg.
  • the collar 13 is not inclined towards the heel 4 or towards the front end 5.
  • the rod 3 comprises a rear stop 50, at the level of the heel 4.
  • the stop made for example by extension of material of the heel, supports if necessary the lower arch 31 of the elastic means 30.
  • the upper arch 32 for its part, bears on the collar 13. In fact the upper arch bears on the bridge 16 of the collar, by example at its lower arch 17.
  • the upper arch 32 of the elastic means 30 partially bypasses the lower arch 17 of the bridge 16 of the collar 13.
  • the upper arch 32 of the elastic means 30 cooperates with the collar 13 by friction.
  • an inclination according to the arrow d towards the heel 4, of the upper portion 11, induces the inclination of the collar 13, also towards the heel 4.
  • This inclination corresponds to a bending towards the rear of the upper portion 11, in freezing with an extension of the foot compared to the lower leg.
  • the collar 13 could have a more regular shape.
  • the attachment means of the elastic means could employ removable pivots, or any equivalent.

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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

The shoe i.e. cross-country skiing boot (1), has a rod (3) comprising a bottom portion (10) surrounding a foot of a user, and a collar (13), which partly extends at level of a top portion (11) of the rod, where the shoe extends in height from an outsole (2) to an upper end (12). The collar is connected to the rod by a transversal articulation axis (23). An elastic unit (30) is arranged opposite to an inclination of the collar towards a heel (4). A removable integration unit integrates the elastic unit with the rod, where articulations of the collar and the integration unit are coaxial.

Description

L'invention se rapporte à une chaussure, notamment de sport, et concerne plus particulièrement une chaussure destinée à la pratique du ski, de la raquette à neige, ou de la marche sportive.The invention relates to a shoe, especially sports, and more particularly to a shoe for skiing, snowshoeing, or walking sports.

De telles chaussures peuvent être utilisées dans des domaines tels que le ski de fond ou de télémark, la raquette à neige, la marche ou la course à plat ou en montagne, ou autre.Such shoes can be used in areas such as cross-country skiing or telemark skiing, snowshoeing, walking or running flat or mountain, or other.

Une chaussure peut comprendre une tige haute, c'est-à-dire qui présente une portion basse et une portion haute. Bien entendu la portion basse couvre le pied, et la portion haute entoure la cheville d'un utilisateur. Certaines chaussures sont en plus munies d'un collier qui s'étend en partie au moins au niveau de la portion haute. Généralement le collier couvre la portion haute, et est relié au reste de la tige par une articulation transversale.A shoe may comprise a high stem, that is to say which has a low portion and a high portion. Of course the lower portion covers the foot, and the upper portion surrounds the ankle of a user. Some shoes are additionally provided with a collar that extends in part at least at the level of the upper portion. Generally the collar covers the upper portion, and is connected to the rest of the stem by a transverse joint.

Par exemple dans le domaine du ski de fond, le collier est utilisé pour apporter de la résistance en flexion transversale. Le collier s'oppose à une inclinaison latérale de la jambe, ce qui évite certains traumatismes de la cheville.For example in the field of cross-country skiing, the collar is used to provide transverse flexural strength. The collar is opposed to a lateral inclination of the leg, which avoids certain injuries of the ankle.

Ainsi lors d'une conduite traditionnelle, c'est-à-dire selon des pas alternatifs, le collier suit les mouvements de flexion ou d'extension du pied par rapport au bas de jambe. En fait le collier bascule librement selon son articulation, pour s'approcher ou s'éloigner du talon. Cela permet à l'utilisateur de pousser longitudinalement et alternativement avec les jambes.Thus during a traditional driving, that is to say in alternative steps, the collar follows the movements of flexion or extension of the foot relative to the lower leg. In fact the collar flips freely according to its articulation, to approach or move away from the heel. This allows the user to push longitudinally and alternately with the legs.

Il est aussi possible d'envisager une conduite en pas de patineur, appelée skating, au cours de laquelle chaque jambe pousse alternativement sur le côté. Dans ce cas la chaussure comprend généralement un moyen élastique qui s'oppose à une inclinaison du collier vers le talon. Cela revient à dire que lorsque le pied est en extension, par rapport au bas de jambe, le moyen élastique est contraint. En réponse ce dernier sollicite le collier dans un sens d'éloignement du talon, c'est-à-dire dans un sens de flexion du pied vers le bas de jambe. La conséquence est de faciliter un mouvement de soulèvement de la spatule du ski. Il s'ensuit qu'il faut moins d'efforts pour ramener le ski vers l'avant. En d'autres termes l'énergie accumulée par le moyen élastique, dans une phase de poussée avec la jambe, est restituée dans une phase de retour du ski vers l'avant.It is also possible to consider skating in a step, called skating, in which each leg alternately pushes on the side. In this case the shoe generally comprises an elastic means which opposes an inclination of the collar towards the heel. This is to say that when the foot is extended, relative to the lower leg, the elastic means is constrained. In response the latter solicits the collar in a sense of distance from the heel, that is to say in a direction of flexion of the foot to the lower leg. The consequence is to facilitate a lifting movement of the ski spatula. As a result, it takes less effort to bring the ski forward. In other words, the energy accumulated by the elastic means, in a thrust phase with the leg, is restored in a return phase of the ski forward.

Il apparaît donc qu'une chaussure donnée n'est pas adaptée à tous les modes de conduite. Soit la chaussure est dépourvue de moyen élastique, et dans ce cas elle convient bien à une conduite en pas alternatifs, soit elle est munie d'un moyen élastique, et alors elle convient plutôt à une conduite en pas de patineur.It therefore appears that a given shoe is not suitable for all modes of driving. Either the shoe is devoid of elastic means, and in this case it is well suited to driving in no alternative, or it is provided with an elastic means, and then it is more suitable for driving in skater steps.

D'ailleurs, dans ce dernier cas, on remarque que l'aide au retour du ski n'est pas toujours adaptée aux besoins de l'utilisateur. Ce dernier présente en effet des caractéristiques qui lui sont propres, comme la taille, le poids, le niveau de pratique, ou autre. L'intensité de la sollicitation exercée par le moyen élastique n'est pas toujours parfaitement adaptée à l'utilisateur.Moreover, in the latter case, we note that the return assistance of the ski is not always adapted to the needs of the user. The latter has indeed its own characteristics, such as size, weight, level of practice, or other. The intensity of the stress exerted by the elastic means is not always perfectly adapted to the user.

D'une manière générale il apparaît qu'une chaussure donnée n'est pas polyvalente, dans le sens où elle n'engendre pas une optimisation des mouvements dans chaque style de conduite. Autrement dit chaque chaussure est spécialisée. En conséquence il est difficile de passer d'un style de conduite à un autre avec la même chaussure, c'est-à-dire d'une conduite en pas alternatifs à une conduite en pas de patineur ou vice versa. S'il veut vraiment le faire, l'utilisateur doit utiliser différentes chaussures.In general it appears that a given shoe is not versatile, in the sense that it does not generate an optimization of the movements in each driving style. In other words, every shoe is specialized. As a result it is difficult to switch from one driving style to another with the same shoe, that is to say, from a non-alternating driving to a skater riding or vice versa. If he really wants to do it, the user has to use different shoes.

Par rapport à cela l'invention a notamment pour but de rendre une chaussure plus polyvalente, c'est-à-dire pas ou peu spécialisée. Cela signifie que l'invention veut autoriser différentes pratiques, notamment dans les styles de conduite, avec la même chaussure.In relation to this the invention is particularly intended to make a shoe more versatile, that is to say, not or little specialized. This means that the invention wants to allow different practices, especially in driving styles, with the same shoe.

L'invention cherche aussi à adapter au mieux le comportement d'une chaussure à un utilisateur donné, pour un style de conduite donné.The invention also seeks to better adapt the behavior of a shoe to a given user, for a given driving style.

Pour ce faire l'invention propose une chaussure comprenant une semelle et une tige, la chaussure s'étendant en longueur depuis un talon jusqu'à une extrémité avant, en largeur entre une partie latérale et une partie médiale, et en hauteur depuis la semelle jusqu'à une extrémité supérieure, la tige comprenant une portion basse, une portion haute, et un collier qui s'étend en partie au moins au niveau de la portion haute, le collier étant relié au reste de la tige par une articulation transversale, la chaussure comprenant un moyen élastique qui s'oppose à une inclinaison du collier vers le talon.To do this, the invention provides a shoe comprising a sole and a upper, the shoe extending in length from a heel to a front end, in width between a lateral portion and a medial portion, and in height from the sole to an upper end, the stem comprising a lower portion, an upper portion, and a collar that extends at least partially at the level of the upper portion, the collar being connected to the rest of the stem by a transverse joint, the shoe comprising an elastic means which opposes an inclination of the collar towards the heel.

La chaussure selon l'invention est caractérisée par le fait qu'elle comprend des moyens de solidarisation amovible du moyen élastique au reste de la tige.The shoe according to the invention is characterized in that it comprises means for releasably securing the elastic means to the rest of the rod.

De fait le moyen élastique est solidarisé au reste de la tige de manière réversible. En conséquence l'utilisateur peut porter une même chaussure, laquelle est munie ou non d'un moyen élastique. Cela revient à dire qu'il est possible de modifier le comportement de la chaussure.In fact, the elastic means is secured to the rest of the rod in a reversible manner. As a result the user can wear the same shoe, which is provided or not with an elastic means. This is to say that it is possible to change the behavior of the shoe.

En effet, en l'absence de moyen élastique la chaussure facilitera la conduite en pas alternatif. Par corollaire la présence sur la tige du moyen élastique favorise la conduite en pas de patineur. Pour ce dernier style, il est encore possible de prévoir des moyens élastiques aux propriétés différentes. Par exemple différents moyens peuvent exercer des forces de rappel d'intensités différentes. Ainsi il est possible de sélectionner le moyen le plus adapté aux caractéristiques de l'utilisateur.Indeed, in the absence of elastic means the shoe will facilitate driving in alternate. By corollary the presence on the rod of the elastic means favors the driving in skater steps. For this last style, it is still possible to provide elastic means with different properties. For example, different means can exert restoring forces of different intensities. Thus it is possible to select the most suitable means for the characteristics of the user.

Il apparaît donc que l'invention rend la chaussure plus polyvalente, dans le sens ou elle n'est pas ou qu'elle est peu spécialisée.It therefore appears that the invention makes the shoe more versatile, in the sense that it is not or that it is not very specialized.

La même chaussure peut être adaptée à plusieurs styles de conduite. De plus pour un style donné, à savoir une conduite en pas de patineur, la chaussure peut être adaptée aux besoins de l'utilisateur. Cela offre un meilleur confort d'utilisation, et réduit le budget nécessaire à plusieurs pratiques.The same shoe can be adapted to several driving styles. In addition for a given style, namely a conduct in skater steps, the shoe can be adapted to the needs of the user. This offers a better comfort of use, and reduces the budget necessary for several practices.

D'autres caractéristiques et avantages de l'invention seront mieux compris à l'aide de la description qui va suivre, au regard du dessin annexé illustrant, selon une forme de réalisation non limitative, comment l'invention peut être réalisée, et dans lequel :

  • La figure 1 est une vue de côté d'une chaussure selon la forme de réalisation décrite de l'invention, dans un cas où elle est munie d'un moyen élastique,
  • la figure 2 est une vue en perspective arrière d'un collier de la chaussure,
  • la figure 3 est une vue en perspective arrière du moyen élastique de la chaussure,
  • la figure 4 est une coupe partielle selon IV-IV de la figure 1,
  • la figure 5 est similaire à la figure 1, dans un cas où la chaussure est dépourvue du moyen élastique,
  • la figure 6 est similaire à la figure 1, dans un cas où le collier est incliné vers le talon.
Other characteristics and advantages of the invention will be better understood from the following description, with reference to the accompanying drawing illustrating, according to a non-limiting embodiment, how the invention can be realized, and wherein :
  • The figure 1 is a side view of a shoe according to the described embodiment of the invention, in a case where it is provided with an elastic means,
  • the figure 2 is a rear perspective view of a shoe collar,
  • the figure 3 is a rear perspective view of the elastic means of the shoe,
  • the figure 4 is a partial section along IV-IV of the figure 1 ,
  • the figure 5 is similar to the figure 1 in a case where the shoe is devoid of the elastic means,
  • the figure 6 is similar to the figure 1 in a case where the collar is inclined towards the heel.

La forme de réalisation qui va être décrite après concerne plus spécialement des chaussures pour 1a pratique du ski de fond, ou de télémark. Cependant l'invention s'applique à d'autres domaines tels que ceux évoqués avant.The embodiment which will be described below relates more particularly to shoes for the practice of cross-country skiing, or telemark. However, the invention applies to other fields such as those mentioned before.

Comme le montre la figure 1, une chaussure de ski de fond 1 est prévue pour accueillir le pied de l'utilisateur.As shown in figure 1 a cross-country ski boot 1 is provided to accommodate the user's foot.

De manière connue, la chaussure 1 comprend une semelle de marche 2 et une tige 3. la chaussure 1 s'étend en longueur depuis une extrémité arrière ou talon 4 jusqu'à une extrémité avant ou pointe 5, et en largeur entre une partie latérale 6 et une partie médiale 7.In known manner, the shoe 1 comprises a tread 2 and a shank 3. the shoe 1 extends in length from a rear end or heel 4 to a front end or tip 5, and in width between a side portion 6 and a medial part 7.

La tige 3 comprend une portion basse 10, prévue pour entourer le pied, ainsi qu'une portion haute 11, prévue pour entourer la cheville.The rod 3 comprises a lower portion 10, provided to surround the foot, and a high portion 11, provided to surround the ankle.

Selon la forme de réalisation décrite, la chaussure 1 s'étend en hauteur depuis la semelle 2 jusqu'à une extrémité supérieure 12, c'est-à-dire jusqu'à l'extrémité libre de la portion 11 ou de la tige 3.According to the embodiment described, the boot 1 extends in height from the sole 2 to an upper end 12, that is to say up to the free end of the portion 11 or the rod 3 .

La chaussure 1 est structurée pour permettre une bonne flexion de la jambe ou un bon déroulement du pied, ainsi que la transmission d'informations sensorielles ou d'impulsions de conduite. C'est pourquoi la tige 3 est relativement souple. La semelle quant à elle peut être relativement rigide, ou bien plus souple.The shoe 1 is structured to allow a good flexion of the leg or a smooth running of the foot, as well as the transmission of sensory information or driving impulses. This is why the rod 3 is relatively flexible. The sole can be relatively rigid or more flexible.

La chaussure 1 comprend encore un collier 13 qui s'étend en partie au moins au niveau de la portion haute, comme on le comprend à l'aide des figures 1 et 2. Le collier 13 comprend par exemple une branche latérale 14, une branche médiale 15, et un pont 16 qui relie les branches 14, 15 l'une à l'autre. Le pont 16 est situé à la hauteur du talon 4, c'est-à-dire vers l'arrière de la tige 3 ou de la portion haute 11. Cependant il aurait pu être placé à l'avant de la portion haute. Le pont 16 comprend, de manière non limitative, une arche inférieure 17 et une arche supérieure 18, ce qui apporte à la fois une rigidité mécanique élevée et la légèreté au collier 13. La branche latérale 14, la branche médiale 15 et le pont 16 forment une pièce monobloc. Celle-ci comprend par exemple une matière plastique ou tout matériau équivalent.The shoe 1 further comprises a collar 13 which extends in part at least at the level of the upper portion, as is understood using the figures 1 and 2 . The collar 13 comprises for example a lateral branch 14, a medial branch 15, and a bridge 16 which connects the branches 14, 15 to one another. The bridge 16 is located at the height of the heel 4, that is to say towards the rear of the rod 3 or the upper portion 11. However it could have been placed in front of the upper portion. The bridge 16 comprises, in a nonlimiting manner, a lower arch 17 and an upper arch 18, which brings both high mechanical rigidity and lightness to the collar 13. The lateral branch 14, the medial branch 15 and the bridge 16 form a single piece. This includes for example a plastic material or any equivalent material.

Le collier 13 comprend encore une sangle 19 qui prolonge le pont 16 pour entourer la portion haute 11, ainsi que le bas de jambe de l'utilisateur. Bien entendu la sangle 19 peut être serrée, desserrée ou ouverte par tout moyen connu de l'homme de l'art.The collar 13 further comprises a strap 19 which extends the bridge 16 to surround the upper portion 11 and the lower leg of the user. Of course the strap 19 can be tightened, loosened or opened by any means known to those skilled in the art.

Le collier 13 est relié au reste de la tige par une articulation transversale d'axe 23. Cela signifie que l'axe d'articulation 23 est orienté dans une direction transversale de la chaussure. En conséquence le collier 13 peut pivoter vers le talon 4 ou vers l'extrémité avant 5. L'articulation est réalisée par toute technique connue, comme on le voit en partie sur la figure 4. L'articulation comprend, du côté de la partie latérale 6, un pivot 24. Celui-ci est une pièce de révolution qui comprend un corps 25 et une tête 26. A l'opposé de la tête 26, le corps 25 est structuré pour être solidarisé à la partie latérale 6 de la tige 3. Ici le corps 25 présente une extrémité libre 27 fendue et épaulée. Il suffit d'appuyer sur la tête 26 pour solidariser le pivot 24 à la tige 3, parce que la partie latérale 6 présente un orifice 28 prévu à cet effet. En complément la branche latérale 14 du collier 13 présente un orifice 29 prévu pour être traversé par le corps 25 du pivot 24. C'est pourquoi la branche latérale 14 pivote selon l'axe transversal 23. Une disposition similaire est prévue du côté médial, pour la branche 15. Au final le collier pivote selon l'axe 23.The collar 13 is connected to the rest of the rod by a transverse articulation axis 23. This means that the hinge pin 23 is oriented in a transverse direction of the shoe. As a result, the collar 13 can pivot towards the heel 4 or towards the front end 5. The articulation is made by any known technique, as can be seen in part on the figure 4 . The articulation comprises, on the side of the lateral part 6, a pivot 24. This is a part of revolution which comprises a body 25 and a head 26. At the opposite of the head 26, the body 25 is structured to to be secured to the side portion 6 of the rod 3. Here the body 25 has a free end 27 split and shouldered. Just press the head 26 to secure the pivot 24 to the rod 3, because the side portion 6 has a hole 28 provided for this purpose. In addition, the lateral branch 14 of the collar 13 has an orifice 29 intended to be traversed by the body 25 of the pivot 24. This is why the lateral branch 14 pivots along the transverse axis 23. A similar arrangement is provided on the medial side, for the branch 15. Finally the collar pivots along the axis 23.

En résumé, bien que cela ne soit pas totalement représenté dans le dessin, on peut dire que l'articulation transversale d'axe 23 comprend un pivot latéral 24 et un pivot médial, l'un étant coaxial avec l'autre, et que cette même articulation présente un orifice 29 ménagé dans la branche latérale 14 ainsi qu'un orifice non référencé ménagé dans la branche médiale 15. Bien entendu les pivots latéral et médial pourraient ne pas être coaxiaux. Cependant leur alignement facilite la rotation du collier 13.In summary, although this is not fully represented in the drawing, it can be said that the transverse articulation axis 23 comprises a lateral pivot 24 and a medial pivot, one being coaxial with the other, and that this same articulation has an orifice 29 formed in the lateral branch 14 and a non-referenced orifice formed in the medial branch 15. Of course the lateral and medial pivots may not be coaxial. However, their alignment facilitates the rotation of the collar 13.

L'articulation est située vers la cheville, c'est-à-dire vers la limite entre les portions basse 10 et haute 11, de façon que le collier 13 accompagne le mouvement de flexion ou d'extension du pied par rapport au bas de jambe. En conséquence le collier 13 maintient le bas de jambe transversalement par rapport au pied, notamment quand la sangle 19 est serrée. Bien entendu la pièce monobloc du collier 13 est plus rigide que le reste de la tige, en l'occurrence plus rigide que la partie latérale 6 et que la partie médiale 7.The joint is located towards the ankle, that is to say towards the boundary between the low and high portions 11, so that the collar 13 accompanies the movement of flexion or extension of the foot relative to the bottom of the leg. As a result, the collar 13 keeps the lower leg transversely relative to the foot, especially when the strap 19 is tightened. Of course the one-piece piece of the collar 13 is more rigid than the rest of the rod, in this case more rigid than the lateral part 6 and the medial part 7.

La chaussure 1 comprend encore un moyen élastique 30, lequel s'oppose à une inclinaison du collier 13 vers le talon 4.The shoe 1 further comprises an elastic means 30, which opposes an inclination of the collar 13 towards the heel 4.

De manière non limitative une structure du moyen élastique est proposée selon les figures 1 et 3. En l'occurrence le moyen élastique 30 comprend une arche inférieure 31 et une arche supérieure 32 reliées l'une à l'autre au niveau d'un sommet 33. Celui-ci présente une subdivision latérale 34 et une subdivision médiale 35. Chaque arche 31, 32 est prévue pour contourner le talon 4 au dessus de la semelle 2. Les arches 31, 32 se prolongent l'une l'autre au niveau des subdivisions 34, 35, de façon que le moyen élastique forme une pièce monobloc. Celle-ci comprend par exemple une matière plastique. A l'état de repos, le moyen élastique 30 présente l'aspect d'une bouche ouverte.Without limitation, a structure of the elastic means is proposed according to the figures 1 and 3 . In this case the elastic means 30 comprises a lower arch 31 and an upper arch 32 connected to each other at a vertex 33. The latter has a lateral subdivision 34 and a medial subdivision 35. Each arch 31, 32 is provided to bypass the heel 4 above the sole 2. The arches 31, 32 are extended at each other at the subdivisions 34, 35, so that the elastic means forms a single piece. This includes for example a plastic material. In the state of rest, the elastic means 30 has the appearance of an open mouth.

Selon l'invention, la chaussure 1 comprend des moyens de solidarisation amovible du moyen élastique 30 au reste de la tige. Cela permet d'associer le moyen élastique 30 au reste de la tige de façon réversible. Ainsi l'utilisateur peut faire le choix d'utiliser ou non le moyen élastique 30 et, lorsqu'il l'utilise, peut le sélectionner parmi une gamme de moyens élastiques de raideurs différentes. L'utilisateur peut donc déterminer une partie des caractéristiques de la chaussure. Cela permet notamment d'adapter la chaussure à un style de conduite.According to the invention, the boot 1 comprises means for releasably securing the elastic means 30 to the rest of the rod. This allows to associate the elastic means 30 to the rest of the rod reversibly. Thus the user can choose whether or not to use the elastic means 30 and, when using it, can select it from a range of elastic means different stiffnesses. The user can therefore determine some of the characteristics of the shoe. This allows in particular to adapt the shoe to a driving style.

Comme on le comprend à l'aide de l'ensemble des figures 1 à 6, les moyens de solidarisation amovible font appel à une articulation. Celle-ci, selon la forme de réalisation décrite, utilise le même axe transversal 23 que l'articulation du collier 13. Cela revient à dire que l'articulation du collier 13 et l'articulation des moyens de solidarisation amovible sont coaxiales. En pratique les pivots latéral 24 et médial sont communs aux deux articulations. Cette disposition simplifie la structure de la chaussure 1, ce qui réduit les coûts de fabrication. Bien entendu, il peut alternativement être envisagé de décaler les articulations l'une par rapport à l'autre, c'est-à-dire de les organiser selon deux axes séparés, parallèles entre eux ou non.As can be understood by using all of the Figures 1 to 6 , the removable fastening means use a joint. This, according to the embodiment described, uses the same transverse axis 23 as the articulation of the collar 13. This amounts to saying that the articulation of the collar 13 and the articulation of the removable fastening means are coaxial. In practice, the lateral and medial pivots 24 are common to both joints. This arrangement simplifies the structure of the shoe 1, which reduces manufacturing costs. Of course, it may alternatively be considered to shift the joints relative to each other, that is to say to organize them according to two separate axes, parallel to each other or not.

Selon la forme de réalisation décrite, l'articulation des moyens de solidarisation amovible comprend le pivot latéral 24 et le pivot médial. Chaque pivot 24 présente une longueur suffisante pour guider, en rotation, à la fois le collier 13 et le moyen élastique 30.According to the embodiment described, the articulation of the removable fastening means comprises the lateral pivot 24 and the medial pivot. Each pivot 24 has a length sufficient to guide, in rotation, both the collar 13 and the elastic means 30.

L'articulation des moyens amovibles présente un orifice latéral 36, ménagé dans la subdivision latérale 34 du sommet 33, ainsi qu'un orifice médial 37, ménagé dans la subdivision médiale 35 du sommet. L'orifice latéral 36 se présente sous la forme d'un trou circulaire 38 prolongé vers les arches 31, 32 par une fente 39. La largeur de la fente 39 est inférieure au diamètre du trou 38. Dans le même esprit l'orifice médial 37 se présente sous la forme d'un trou circulaire 40 prolongé vers les arches 31, 32 par une fente 41. Là encore la largeur de la fente 41 est inférieure au diamètre du trou 40. Il est ainsi possible de monter de manière réversible le moyen élastique 30 sur le reste de la tige 3. Il suffit d'emboîter chaque corps 25 de pivot 24 dans son orifice 36, 37 respectif, de façon que les arches 31, 32 contournent l'arrière de la tige 3, pour mettre en place le moyen élastique. L'inverse, c'est-à-dire le démontage du moyen élastique 30, est obtenu en faisant sortir les corps 25 de pivot 24 de leurs orifices d'accueil 36, 37 respectifs.The articulation of the removable means has a lateral orifice 36 formed in the lateral subdivision 34 of the vertex 33 and a medial orifice 37 formed in the medial subdivision 35 of the crown. The lateral orifice 36 is in the form of a circular hole 38 extended towards the arches 31, 32 by a slot 39. The width of the slot 39 is smaller than the diameter of the hole 38. In the same spirit the medial orifice 37 is in the form of a circular hole 40 extended towards the arches 31, 32 by a slot 41. Here again the width of the slot 41 is smaller than the diameter of the hole 40. It is thus possible to reversibly mount the elastic means 30 on the rest of the rod 3. Just fit each pivot body 24 in its respective orifice 36, 37, so that the arches 31, 32 bypass the rear of the rod 3, to set place the elastic means. The reverse, that is to say the disassembly of the resilient means 30, is obtained by bringing out the pivot bodies 24 from their respective receiving orifices 36, 37.

Lorsque le moyen élastique 30 est en place, par exemple selon la figure 1, la portion haute 11 de la tige 3 occupe une position naturelle. Celle-ci correspond à une position orthostatique de la jambe de l'utilisateur. En l'occurrence le collier 13 n'est pas incliné vers le talon 4 ou vers l'extrémité avant 5. La tige 3 comprend une butée arrière 50, au niveau du talon 4. La butée, réalisée par exemple par extension de matière issue du talon, supporte le cas échéant l'arche inférieure 31 du moyen élastique 30. L'arche supérieure 32, quant à elle, prend appui sur le collier 13. En fait l'arche supérieure prend appui sur le pont 16 du collier, par exemple au niveau de son arche inférieure 17.When the elastic means 30 is in place, for example according to the figure 1 the upper portion 11 of the rod 3 occupies a natural position. This corresponds to an orthostatic position of the user's leg. In this case the collar 13 is not inclined towards the heel 4 or towards the front end 5. The rod 3 comprises a rear stop 50, at the level of the heel 4. The stop, made for example by extension of material of the heel, supports if necessary the lower arch 31 of the elastic means 30. The upper arch 32, for its part, bears on the collar 13. In fact the upper arch bears on the bridge 16 of the collar, by example at its lower arch 17.

Selon la première forme de réalisation décrite, de manière non limitative, l'arche supérieure 32 du moyen élastique 30 contourne en partie au moins l'arche inférieure 17 du pont 16 du collier 13. En pratique l'arche supérieure 32 du moyen élastique 30 coopère avec le collier 13 par frottement.According to the first embodiment described, without limitation, the upper arch 32 of the elastic means 30 partially bypasses the lower arch 17 of the bridge 16 of the collar 13. In practice the upper arch 32 of the elastic means 30 cooperates with the collar 13 by friction.

Comme le montre la figure 6, une inclinaison selon la flèche d vers le talon 4, de la portion haute 11, induit l'inclinaison du collier 13, lui aussi vers le talon 4. Cette inclinaison correspond à une flexion vers l'arrière de la portion haute 11, en congélation avec une extension du pied par rapport au bas de jambe.As shown in figure 6 , an inclination according to the arrow d towards the heel 4, of the upper portion 11, induces the inclination of the collar 13, also towards the heel 4. This inclination corresponds to a bending towards the rear of the upper portion 11, in freezing with an extension of the foot compared to the lower leg.

Bien entendu l'inclinaison arrière du collier 13 se fait contre l'action élastique de moyen éponyme 30. Ce dernier accumule de l'énergie par déformation élastique, et repousse le collier 13 dans un sens d'éloignement du talon 4. Ce faisant l'arche inférieure 31 est en appui sur la butée 50, et l'arche supérieure 32 du collier 13 prend appui sur le pont 16 du collier, notamment sur l'arche inférieure 17. Le contact, entre les arches 32, 17 du collier 13 et du moyen élastique 30, se traduit par un frottement. En fait les arches 32, 17, glissent l'une sur l'autre pour obtenir un effet de serrage. Cela donne de la progressivité aux mouvements de rotation du collier 13. Cela permet aussi au moyen élastique 30 d'enserrer le collier 13, et d'accroître la rigidité d'un ensemble comprenant le collier et le moyen élastique, au fur et à mesure que le collier s'incline vers le talon 4. En conséquence la rigidité transversale de la tige s'accroît proportionnellement à la rotation arrière du collier, c'est-à-dire en fonction de l'inclinaison arrière de la portion haute 11. La coopération du moyen élastique 30 et du collier 13 est donc double.Of course the rear inclination of the collar 13 is against the elastic action of eponymous means 30. The latter accumulates energy by elastic deformation, and pushes the collar 13 in a direction away from the heel 4. In doing so, the lower arch 31 is resting on the abutment 50, and the upper arch 32 of the collar 13 bears on the bridge 16 of the collar, in particular on the lower arch 17. The contact between the arches 32, 17 of the collar 13 and elastic means 30, results in friction. In fact the arches 32, 17, slide on one another to obtain a clamping effect. This gives progressiveness to the rotational movements of the collar 13. This also allows the elastic means 30 to grip the collar 13, and increase the rigidity of an assembly comprising the collar and the elastic means, as and when that the collar tilts towards the heel 4. Consequently, the transverse rigidity of the rod increases proportionally to the rear rotation of the collar, that is to say according to the rear inclination of the upper portion 11. The cooperation of the elastic means 30 and the collar 13 is therefore double.

Dans tous les cas l'invention est réalisée à partir de matériaux et selon des techniques de mise en oeuvre connus de l'homme du métier.In all cases the invention is made from materials and according to processing techniques known to those skilled in the art.

Bien entendu l'invention n'est pas limitée à la forme de réalisation ci-avant décrite, et comprend tous les équivalents techniques pouvant entrer dans la portée des revendications qui vont suivre.Naturally, the invention is not limited to the embodiment described above, and includes all technical equivalents that fall within the scope of the claims that follow.

En particulier on peut prévoir d'autres structures pour le collier 13 et pour le moyen élastique 30. Par exemple le collier 13 pourrait présenter une forme plus régulière. Les moyens d'attache du moyen élastique pourraient employer des pivots démontables, ou tout équivalent.In particular, other structures can be provided for the collar 13 and for the elastic means 30. For example, the collar 13 could have a more regular shape. The attachment means of the elastic means could employ removable pivots, or any equivalent.

Claims (9)

Chaussure (1) comprenant une semelle (2) et une tige (3), la chaussure (1) s'étendant en longueur depuis un talon (4) jusqu'à une extrémité avant (5), en largeur entre une partie latérale (6) et une partie médiale (7), et en hauteur depuis la semelle (2) jusqu'à une extrémité supérieure (12), la tige (3) comprenant une portion basse (10), une portion haute (11), et un collier (13) qui s'étend en partie au moins au niveau de la portion haute (11), le collier (13) étant relié au reste de la tige (3) par une articulation transversale, la chaussure (1) comprenant un moyen élastique (30) qui s'oppose à une inclinaison du collier (13) vers le talon,
caractérisée par le fait qu'elle comprend des moyens de solidarisation amovible du moyen élastique (30) au reste de la tige (3).Shoe (1) comprising a sole (2) and a shaft (3), the shoe (1) extending in length from a heel (4) to a front end (5), in width between a lateral part ( 6) and a medial portion (7), and in height from the sole (2) to an upper end (12), the rod (3) comprising a lower portion (10), an upper portion (11), and a collar (13) which extends in part at least at the upper portion (11), the collar (13) being connected to the rest of the shaft (3) by a transverse joint, the shoe (1) comprising a elastic means (30) opposing an inclination of the collar (13) towards the heel,
characterized in that it comprises means for releasably securing the elastic means (30) to the rest of the rod (3). Chaussure (1) selon la revendication 1, caractérisée par le fait que les moyens de solidarisation amovible, du moyen élastique 30 au reste de la tige, font appel à une articulation.Shoe (1) according to claim 1, characterized in that the removable fastening means, the elastic means 30 to the rest of the rod, use a joint. Chaussure (1) selon la revendication 2, caractérisée par le fait que l'articulation du collier (13) et l'articulation des moyens de solidarisation amovible sont coaxiales.Shoe (1) according to claim 2, characterized in that the articulation of the collar (13) and the articulation of the removable fastening means are coaxial. Chaussure (1) selon la revendication 3, caractérisée par le fait que le moyen élastique (30) comprend une arche inférieure (31) et une arche supérieure (32) reliées l'une à l'autre au niveau d'un sommet (33), celui-ci (33) présentant une subdivision latérale (34) et une subdivision médiale (35), les arches (31, 32) se prolongeant l'une l'autre au niveau des subdivisions (34, 35), par le fait que l'articulation des moyens de solidarisation amovible comprend un pivot latéral (24) et un pivot médial, et présente un orifice latéral (36) ménagé dans la subdivision latérale (34) du sommet (33), ainsi qu'un orifice médial (37) ménagé dans la subdivision médiale (35) du sommet, et par le fait que l'articulation du collier (13) comprend le pivot latéral (24) et le pivot médial, et présente un orifice (29) ménagé dans une branche latérale (14) du collier, ainsi qu'un orifice ménagé dans une branche médiale (15) du collier.Shoe (1) according to claim 3, characterized in that the elastic means (30) comprises a lower arch (31) and an upper arch (32) connected to one another at a vertex (33). ), the latter (33) having a lateral subdivision (34) and a medial subdivision (35), the arches (31, 32) extending at each other at the subdivisions (34, 35), by the in that the articulation of the detachable fastening means comprises a lateral pivot (24) and a medial pivot, and has a lateral orifice (36) formed in the lateral subdivision (34) of the apex (33), as well as a medial orifice (37) formed in the medial subdivision (35) of the vertex, and in that the articulation of the collar (13) comprises the lateral pivot (24) and the medial pivot, and has an orifice (29) formed in a branch collar (14) and an opening in a medial limb (15) of the collar. Chaussure (1) selon la revendication 4, caractérisée par le fait que l'orifice latéral (36) se présente sous la forme d'un trou circulaire (38) prolongé vers les arches (31, 32) par une fente (39), et par le fait que l'orifice médial (37) se présente sous la forme d'un trou circulaire (40) prolongé vers les arches (31, 32) par une fente (41).Shoe (1) according to claim 4, characterized in that the lateral orifice (36) is in the form of a circular hole (38) extended towards the arches (31, 32) by a slot (39), and in that the medial orifice (37) is in the form of a circular hole (40) extended towards the arches (31, 32) by a slot (41). Chaussure (1) selon l'une des revendications 1 à 5, caractérisée par le fait que le moyen élastique forme une pièce monobloc.Shoe (1) according to one of claims 1 to 5, characterized in that the elastic means forms a single piece. Chaussure (1) selon l'une des revendications 1 à 6, caractérisée par le fait que le collier (13) comprend une branche latérale (14), une branche médiale (15), et un pont (16) qui relie les branches (14, 15) l'une à l'autre.Shoe (1) according to one of claims 1 to 6, characterized in that the collar (13) comprises a lateral branch (14), a medial branch (15), and a bridge (16) which connects the branches ( 14, 15) to each other. Chaussure (1) selon l'une des revendications 1 à 7, caractérisée par le fait que la tige (3) comprend une butée arrière (50), au niveau du talon (4).Shoe (1) according to one of claims 1 to 7, characterized in that the rod (3) comprises a rear stop (50) at the heel (4). Chaussure (1) selon l'une des revendications 4 à 8, caractérisée par le fait que l'arche supérieure (32) du moyen élastique prend appui sur le collier (13).Shoe (1) according to one of claims 4 to 8, characterized in that the upper arch (32) of the resilient means bears on the collar (13).
EP09000271.8A 2008-01-24 2009-01-12 Boot comprising a bottom part and a top part Not-in-force EP2082658B1 (en)

Applications Claiming Priority (1)

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FR0800372A FR2926703B1 (en) 2008-01-24 2008-01-24 SHOE COMPRISING A LOW PORTION AND A HIGH PORTION

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EP2082658B1 EP2082658B1 (en) 2017-01-04

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CN112586835A (en) * 2016-10-26 2021-04-02 耐克创新有限合伙公司 Heel spring device for shoes
US11304477B2 (en) 2016-10-26 2022-04-19 Nike, Inc. Footwear heel spring device
US11464287B2 (en) 2018-12-28 2022-10-11 Nike, Inc. Footwear element with locating pegs and method of manufacturing an article of footwear
US11700916B2 (en) 2019-02-13 2023-07-18 Nike, Inc. Footwear heel support device
US11910867B2 (en) 2022-03-28 2024-02-27 Nike, Inc. Article of footwear with heel entry device

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EP0596281A1 (en) * 1992-11-06 1994-05-11 Salomon S.A. Shoe for the practice of winter sports
EP0829208A1 (en) * 1996-09-13 1998-03-18 Salomon S.A. Sportsshoe comprising energising means
US6047975A (en) * 1995-11-20 2000-04-11 Salomon S.A. Roller skate

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Publication number Priority date Publication date Assignee Title
EP0596281A1 (en) * 1992-11-06 1994-05-11 Salomon S.A. Shoe for the practice of winter sports
US6047975A (en) * 1995-11-20 2000-04-11 Salomon S.A. Roller skate
EP0829208A1 (en) * 1996-09-13 1998-03-18 Salomon S.A. Sportsshoe comprising energising means

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112586835A (en) * 2016-10-26 2021-04-02 耐克创新有限合伙公司 Heel spring device for shoes
US11304477B2 (en) 2016-10-26 2022-04-19 Nike, Inc. Footwear heel spring device
US11484095B2 (en) 2016-10-26 2022-11-01 Nike, Inc. Footwear heel spring device
US11612216B2 (en) 2016-10-26 2023-03-28 Nike, Inc. Footwear heel spring device
US11707112B2 (en) 2016-10-26 2023-07-25 Nike, Inc. Footwear heel spring device
US11707111B2 (en) 2016-10-26 2023-07-25 Nike, Inc. Footwear heel spring device
US11464287B2 (en) 2018-12-28 2022-10-11 Nike, Inc. Footwear element with locating pegs and method of manufacturing an article of footwear
US11700916B2 (en) 2019-02-13 2023-07-18 Nike, Inc. Footwear heel support device
US11910867B2 (en) 2022-03-28 2024-02-27 Nike, Inc. Article of footwear with heel entry device

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FR2926703A1 (en) 2009-07-31
EP2082658B1 (en) 2017-01-04

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