EP3000342B1 - Inner boot with raised padding for sports footwear - Google Patents

Inner boot with raised padding for sports footwear Download PDF

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Publication number
EP3000342B1
EP3000342B1 EP14425118.8A EP14425118A EP3000342B1 EP 3000342 B1 EP3000342 B1 EP 3000342B1 EP 14425118 A EP14425118 A EP 14425118A EP 3000342 B1 EP3000342 B1 EP 3000342B1
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EP
European Patent Office
Prior art keywords
layer
liner
inner boot
lower element
outer layer
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.)
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Application number
EP14425118.8A
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German (de)
French (fr)
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EP3000342A1 (en
Inventor
Luca Zanatta
Michele Cavallin
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Rossignol Lange SRL
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Rossignol Lange SRL
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Application filed by Rossignol Lange SRL filed Critical Rossignol Lange SRL
Priority to EP14425118.8A priority Critical patent/EP3000342B1/en
Publication of EP3000342A1 publication Critical patent/EP3000342A1/en
Application granted granted Critical
Publication of EP3000342B1 publication Critical patent/EP3000342B1/en
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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
    • A43B5/0405—Linings, paddings or insertions; Inner boots
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B11/00—Footwear with arrangements to facilitate putting-on or removing, e.g. with straps
    • 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
    • A43B5/0482—Ski or like boots characterised by type or construction details made from materials with different rigidities

Definitions

  • the invention relates to a liner for a sports shoe and, more particularly, an inner liner for an alpine ski, cross-country ski or snowboard boot.
  • Certain sports shoes and, in particular, alpine ski boots are equipped with an inner liner having, on the one hand, thermal insulation properties and comprising, on the other hand, means for protecting the foot of the skier both against shocks and with respect to the support stresses exerted by the rigid outer shell of the boot.
  • This liner intended to be positioned inside the shell of the boot is generally removable and is therefore intended to improve the comfort of the skier while ensuring a wedging of the foot to ensure effective and sensitive control as well as precise transmission. mechanical support on the skis via the boots.
  • the relatively rigid outer shell of the shoe has a collar articulated on a rod and in certain embodiments the outer shell is equipped with a system for locking the pivoting of the collar backwards in ski mode and for unlocking its rearward pivoting in walking mode to allow the cuff to pivot rearward and facilitate the skier's walking despite the rigidity and weight of the boot.
  • the liner it is often made up of several layers and generally comprises an outer layer intended to provide hold to the liner, and an internal trim lining intended to be in contact with the foot.
  • trim elements forming padding are interposed, during manufacture, between the outer layer and the inner lining of the liner and are arranged on the inner wall of the outer layer, at least in the rear part of the liner, sometimes also extending over the side parts.
  • connection zone between the upper part and the lower part of the liner is articulated to adapt the liner to shoe shells whose collar pivots relative to the upper, in order to facilitate the walk of the skier.
  • This connecting zone is then subjected to significant deformations which weaken the interior lining.
  • the WO 2014/139711 A1 and the JP H0249601 describe liners for ski boots whose lower part is more flexible than the rigid upper part because the latter is more particularly intended for the transmission of forces from the leg to the ski.
  • slippers are not intended to be fitted to ski boots offering any possibility of bending backwards to facilitate walking.
  • the connecting line is positioned in the zone of rotation of the heel of the foot during fitting, that is to say precisely where the friction between the foot and the liner as well as the deformation are very high.
  • connection zone between the upper part and the lower part of the liner on the outer layer sometimes has rigid parts and protruding seams which are likely to prove to be aggressive and which it is therefore necessary to insulate and screen to protect the user's foot.
  • the object of the present invention is to solve the technical problems posed by the prior art by proposing an liner provided with an improved lining.
  • the upper end of the lower element is positioned at a height of between 1/2 and 2/3 of the total height of the liner.
  • the upper end of the lower element is formed by a tab.
  • the lower element is made with an elastically deformable material while the upper element is made with a material of greater hardness.
  • the upper and lower elements of the packing layer consist of joined parts.
  • the filling layer is glued to the inner wall of the outer layer of the liner.
  • the liner of the invention further comprises an internal covering layer.
  • This layer is then attached to the inner wall of the intermediate packing layer.
  • the inner covering layer consists of several parts including an intermediate band covering the top end of the lower element of the packing layer.
  • this articulation zone is a folding zone provided with a series of deformable strips.
  • the lower element covers the series of slats.
  • Another object of the invention is a shoe equipped with a liner as defined above.
  • the liner of the invention offers comfortable padding, more precise wedging and greater ease of use by guiding and promoting the passage of the foot in the liner both during its introduction and of its extraction.
  • the packing in at least two elements makes it possible to separate the functional zones and to position them in a specific way by optimizing each of them by adjusting its profile, its geometry and a specific choice of its constituent material.
  • This configuration also makes it possible to reduce the risk of tearing off the intermediate lining and to better adapt to the liners whose upper part is articulated on the lower part.
  • the slipper represented on the figure 2A is intended for use in an alpine ski boot shell.
  • the slipper as illustrated by the figure 2B comprises an outer layer 4 in two parts, respectively a lower part 1 and an upper part 2, intended to provide hold to the liner and an internal trim lining 5 intended to be in contact with the foot.
  • elements of lining are introduced and joined together, during manufacture, to form the intermediate layer 3 of lining between the outer layer 4 and the inner lining 5 of the liner.
  • the upper 2 and lower 1 parts are connected to a complementary front part A, to a sole S and to a front tongue L.
  • the two parts 1, 2 forming the outer layer 4 of the liner are optionally made of different materials, polyethylene (PE), polyvinyl chloride (PVC), polyurethane (PU) or any other material likely to be used for make an outer shoe upper.
  • PE polyethylene
  • PVC polyvinyl chloride
  • PU polyurethane
  • the upper part 2 of the outer layer 4 of the liner is generally more rigid than the lower part 1 which is substantially more flexible.
  • the rigidity of the upper part 2 of the liner can be obtained by adding elements of the plastic plate type, covered with a textile layer.
  • the upper 2 and lower 1 parts are produced independently of one another and are juxtaposed or superposed and then assembled subsequently by gluing or by sewing, for example by a zigzag seam.
  • the lower part 1 can be made in a single piece or can possibly consist of two sides 1a and 1b respectively left and right, assembled edge to edge by sewing or gluing along their median vertical axis, as illustrated by the figure 1 .
  • the outer layer 4 of the liner shown flat on the figure 1 , is shaped by bringing together on the front of the liner, the two ends of the sides 1a, 1b.
  • the connecting zone 12 between the upper and lower parts of the liner can be wavy or rectilinear in shape depending on the embodiment envisaged.
  • the connecting zone 12 between the upper and lower parts of the liner is a connecting line 12a of wavy shape.
  • the slipper which is in contact with the foot and which is positioned inside a rigid shell made up of a rod and a collar articulated on this rod, must be able to adapt to the pivoting of the collar of the shoe relative to its upper, in particular towards the rear so as not to interfere with walking.
  • the liner can also be provided with an articulation zone, for example, a folding zone 13, located near the connecting zone 12, between the upper part 2 and the lower part 1, as shown in figure 4 .
  • an articulation zone for example, a folding zone 13, located near the connecting zone 12, between the upper part 2 and the lower part 1, as shown in figure 4 .
  • the articulation zone is constituted by the production of deformable strips 11 spaced apart from vertical slots 10 located at the rear of the liner within its outer layer 4.
  • the slipper illustrated on the figure 1 flat and developed before shaping and assembly, also includes an intermediate layer of filling 3.
  • This padding layer 3 is generally glued to the inner face of the outer layer of the liner.
  • the packing layer comprises at least two elements, respectively, an upper element 32 and a lower element 31 provided with an upper guide tongue 31a extending above the connecting zone 12 between the upper 2 and lower 1 parts. of the slipper.
  • the connecting zone 12 is provided with a hinge or a flexible element (not shown) allowing the bending of the upper part 2 relative to the lower part 1, the tongue 31a must be able to follow this deformation so as not to block or hinder this pivoting movement.
  • This embodiment of the packing layer 3, in at least two constituent elements 31, 32, makes it possible to individualize and optimize the specific functions of each of the packing elements both in terms of the constituent materials and their profile and their dimensions (in particular thickness, width and height).
  • the padding layer 3 also participates in the rigidity of the entire liner and in particular contributes to giving more rigidity to the upper part than to the lower part.
  • the lower element 31 of the packing layer 3 is produced, like the upper element 32, by cutting out a sheet of foam.
  • These elements 31, 32 are made, for example, of PE, EPDM, EVA, chipboard, or any material generally used in a cushioning function.
  • the lower element 31 will be made with an elastically flexible and deformable material, while the upper element 32 will be made with a material of greater hardness.
  • the upper element 32 is made, for example, of PE with a density of between 90 and 110 kg/m 3 and the lower element 31 is made, for example, of EPDM with a density of between 65 and 110 kg/m 3 .
  • the lower element 31 is cut according to a pattern (dimensions and profile) such that its upper end extends, at a height situated at least above of the rotation zone of the heel of the foot when introducing the foot into the liner.
  • the upper end of the lower element 31 corresponds to the upper end of the tongue 31a.
  • This rotation zone of the heel of the foot is schematized on the figure 5 at the cutting plane.
  • the foot When putting on the foot, the foot is introduced into a vertical position, then pivots to reach a horizontal position at the bottom of the liner and flat on the sole S. This pivoting zone corresponds to the rotation zone of the heel R illustrated on the figure 5 .
  • the upper end of the lower element 31 is, in the variant illustrated, the upper end of the tongue 31a extends at least above the connecting zone 12 between the upper part and the lower part, to be positioned at a height of between 1/2 and 2/3 of the total height of the liner.
  • the dimensions as well as the shape chosen for the tongue 31a make it possible to obtain a good compromise between a rigidity which remains sufficiently high for the entire liner in the upper part and better comfort in the zone of rotation of the heel of the foot during footwear.
  • the upper end of the tongue 31a is also designed so as to extend beyond the connecting line 12 between the upper 2 and lower 1 parts of the liner and, possibly; to the side edges of the lower element 31 of the packing layer 3 via a curvilinear cutout 310, as illustrated by the figure 1 and 4 .
  • the contours of the tongue 31a can be curvilinear or wavy, or even rectilinear, or even consist of broken lines, to form, for example, a triangular or rectangular tongue.
  • the tongue has a symmetrical shape with respect to the median axis X of the liner.
  • the tongue 31a will have an asymmetry with respect to the axis X and its upper end may consist, for example, of a point or of several sawtooth points.
  • the upper part of the lower element could also consist of several tongues.
  • the width of the base of the tongue is between 2 and 15 cm, or even between 5 and 13 cm.
  • the tongue may extend as far as the side edges of the upper element 32 of the padding layer 3 and, possibly, as far as the side edges of the outer layer 4 of the liner.
  • the respective thicknesses of the upper element 32 and of the lower element 31 are substantially identical and comprised between 0.5 and 1.2 cm at least in their junction zone.
  • the upper element 32 possibly extends to the upper part of the upper part 2 of the outer layer 4 while the lower element 31 extends widely into the lower part of the outer layer 4.
  • the lower element 31 of the packing layer 3 covers the series of strips 11 which create the folding zone 13, and the upper end of the tongue 31a extends above the connection zone 12.
  • the padding layer 3 can be covered with an inner layer 5 for covering, protection and comfort forming a lining and covering not only the layer 3, but also the entire inner surface of the liner.
  • This inner layer 5 can be single-material or formed from the joined assembly of several pieces of fabric, as illustrated in the picture 3 .
  • the inner layer 5 is made in three parts, made up, respectively, of a lower skirt 511, of an intermediate band 512 and of an upper collar 513.
  • the inner layer 5, intended to be in direct contact with the foot, is generally made of textile materials giving comfort and thermal insulation properties to the liner.
  • the intermediate band 512 covers the tongue 31a of the intermediate layer of lining 3.
  • the band 512 has a high convex edge 512a as well as a low convex edge 512b.
  • the liner illustrated by the figures comprises at least two layers and, preferably, three layers including a padding layer but it could, according to variants of the invention, comprise additional layers without departing from the scope of the invention.
  • the intermediate packing layer could also itself consist of several sub-layers, at least one of these sub-layers comprising a tab as defined according to the invention.

Description

L'invention se rapporte à un chausson pour chaussure de sport et, plus particulièrement, un chausson intérieur pour chaussure de ski alpin, de ski de fond ou de snowboard.The invention relates to a liner for a sports shoe and, more particularly, an inner liner for an alpine ski, cross-country ski or snowboard boot.

Certaines chaussures de sport et, notamment, les chaussures de ski alpin, sont équipées d'un chausson intérieur présentant, d'une part, des propriétés d'isolation thermique et comportant, d'autre part, des moyens de protection du pied du skieur tant contre les chocs que vis à vis des contraintes d'appui exercées par la coque extérieure rigide de la chaussure.Certain sports shoes and, in particular, alpine ski boots, are equipped with an inner liner having, on the one hand, thermal insulation properties and comprising, on the other hand, means for protecting the foot of the skier both against shocks and with respect to the support stresses exerted by the rigid outer shell of the boot.

Ce chausson destiné à être positionné à l'intérieur de la coque de la chaussure, est généralement amovible et est donc destiné à améliorer le confort du skieur tout en assurant un calage du pied pour assurer un contrôle efficace et sensible ainsi qu'une transmission précise des appuis mécaniques sur les skis via les chaussures.This liner intended to be positioned inside the shell of the boot, is generally removable and is therefore intended to improve the comfort of the skier while ensuring a wedging of the foot to ensure effective and sensitive control as well as precise transmission. mechanical support on the skis via the boots.

EXPOSÉ DE L'INVENTIONDISCLOSURE OF THE INVENTION

De façon générale, la coque extérieure relativement rigide de la chaussure présente un collier articulé sur une tige et dans certains modes de réalisation la coque extérieure est équipée d'un système de verrouillage du pivotement du collier vers l'arrière en mode ski et de déverrouillage de son pivotement vers l'arrière en mode marche pour permettre le pivotement du collier vers l'arrière et faciliter la marche à pied du skieur malgré la rigidité et le poids de la chaussure.In general, the relatively rigid outer shell of the shoe has a collar articulated on a rod and in certain embodiments the outer shell is equipped with a system for locking the pivoting of the collar backwards in ski mode and for unlocking its rearward pivoting in walking mode to allow the cuff to pivot rearward and facilitate the skier's walking despite the rigidity and weight of the boot.

Le chausson quant à lui est souvent constitué de plusieurs couches et comprend généralement une couche externe destinée à apporter de la tenue au chausson, et une doublure interne d'habillage destinée à être en contact du pied. De plus dans le but d'améliorer encore le confort et d'ajuster le chausson au volume de la chaussure, des éléments de garnissage formant rembourrage sont intercalés, au cours de la fabrication, entre la couche externe et la doublure interne du chausson et sont disposés sur la paroi intérieure de la couche externe, au moins dans la partie arrière du chausson, en se prolongeant aussi parfois sur les parties latérales.As for the liner, it is often made up of several layers and generally comprises an outer layer intended to provide hold to the liner, and an internal trim lining intended to be in contact with the foot. In addition, with the aim of further improving comfort and adjusting the liner to the volume of the shoe, trim elements forming padding are interposed, during manufacture, between the outer layer and the inner lining of the liner and are arranged on the inner wall of the outer layer, at least in the rear part of the liner, sometimes also extending over the side parts.

De tels garnissages sont décrits, notamment, dans le EP 0 839 464A1 qui présente un élément spécifique à l'arrière du chausson facilitant le glissement du talon lors de l'insertion du pied, ainsi que dans le EP 0 711515 qui présente un chausson dont l'épaisseur est constituée de trois couches, respectivement, une couche externe, une couche intermédiaire de garnissage et une couche interne en contact avec le pied.Such packings are described, in particular, in the EP 0 839 464A1 which has a specific element at the back of the liner to facilitate the sliding of the heel when inserting the foot, as well as in the EP 0 711515 which has a liner whose thickness is made up of three layers, respectively, an outer layer, an intermediate padding layer and an inner layer in contact with the foot.

Ces garnissages intermédiaires sont fortement sollicités principalement car ils se trouvent précisément à l'endroit où le talon du pied prend appui et s'enfonce en tournant en force dans le chausson à chaque fois que l'utilisateur souhaite chausser.These intermediate linings are highly stressed mainly because they are located precisely at the point where the heel of the foot bears and sinks into the liner by turning forcefully each time the user wishes to put on shoes.

Or, du fait que ces garnissages sont rapportés et constitués eux-mêmes de plusieurs pièces et/ou sous-couches cousues ou collées et que le chausson est constitué de l'assemblage de plusieurs couches fixées entre elles, éventuellement par collage, il est fréquent de constater des décollements ou des déchirures au moins partielles se produisant à la suite d'usages et de contraintes répétés.However, since these linings are added and themselves made up of several pieces and/or sub-layers sewn or glued and since the liner is made up of the assembly of several layers fixed together, possibly by gluing, it is frequent to note detachments or at least partial tears occurring as a result of repeated use and stress.

Ce problème d'usure prématurée voire de détérioration est d'autant plus critique dans le cas où la zone de liaison entre la partie haute et la partie basse du chausson est articulée pour adapter le chausson à des coques de chaussures dont le collier pivote par rapport à la tige, en vue de faciliter la marche du skieur. Cette zone de liaison est alors soumise à des déformations importantes qui fragilisent le garnissage intérieur.This problem of premature wear or even deterioration is all the more critical in the case where the connection zone between the upper part and the lower part of the liner is articulated to adapt the liner to shoe shells whose collar pivots relative to the upper, in order to facilitate the walk of the skier. This connecting zone is then subjected to significant deformations which weaken the interior lining.

Le WO 2014/139711 A1 et le JP H0249601 décrivent des chaussons pour chaussures de ski dont la partie basse est plus souple que la partie haute rigide car cette dernière est plus particulièrement destinée à la transmission des efforts de la jambe vers le ski.the WO 2014/139711 A1 and the JP H0249601 describe liners for ski boots whose lower part is more flexible than the rigid upper part because the latter is more particularly intended for the transmission of forces from the leg to the ski.

Toutefois, ces chaussons ne sont pas destinés à équiper des chaussures de ski offrant une quelconque possibilité de flexion vers l'arrière pour faciliter la marche.However, these slippers are not intended to be fitted to ski boots offering any possibility of bending backwards to facilitate walking.

Cependant, les garnissages décrits dans l'art antérieur qui comportent une liaison entre deux éléments jointifs réalisés éventuellement avec des matériaux différents, ladite liaison étant située dans la partie en regard du tendon d'Achille, ne permettent pas une bonne durabilité du chausson dans le temps.However, the linings described in the prior art which comprise a connection between two adjoining elements possibly made of different materials, said connection being located in the part facing the Achilles tendon, do not allow good durability of the liner in the time.

En effet, la ligne de liaison est positionnée dans la zone de rotation du talon du pied lors du chaussage, c'est à dire précisément là où le frottement entre le pied et le chausson ainsi que la déformation sont très importants.In fact, the connecting line is positioned in the zone of rotation of the heel of the foot during fitting, that is to say precisely where the friction between the foot and the liner as well as the deformation are very high.

En outre, la zone de liaison entre la partie haute et la partie basse du chausson sur la couche externe comporte parfois des pièces rigides et des coutures saillantes qui sont susceptibles de se révéler agressives et qu'il est donc nécessaire d'isoler et d'écranter pour protéger le pied de l'utilisateur.In addition, the connection zone between the upper part and the lower part of the liner on the outer layer sometimes has rigid parts and protruding seams which are likely to prove to be aggressive and which it is therefore necessary to insulate and screen to protect the user's foot.

La présente invention a pour but de résoudre les problèmes techniques posés par l'art antérieur en proposant un chausson pourvu d'un garnissage perfectionné.The object of the present invention is to solve the technical problems posed by the prior art by proposing an liner provided with an improved lining.

Ce but est atteint selon l'invention au moyen d'un chausson selon les caractéristiques de la revendication 1. This object is achieved according to the invention by means of a liner according to the characteristics of claim 1.

Selon une autre caractéristique, l'extrémité haute de l'élément inférieur est positionnée à une hauteur comprise entre 1/2 et 2/3 de la hauteur totale du chausson.According to another characteristic, the upper end of the lower element is positioned at a height of between 1/2 and 2/3 of the total height of the liner.

Selon une variante spécifique de l'invention, l'extrémité haute de l'élément inférieur est formé d'une languette.According to a specific variant of the invention, the upper end of the lower element is formed by a tab.

Selon une autre caractéristique, l'élément inférieur est réalisé avec un matériau élastiquement déformable tandis que l'élément supérieur est réalisé avec un matériau de plus grande dureté.According to another characteristic, the lower element is made with an elastically deformable material while the upper element is made with a material of greater hardness.

De préférence, les éléments supérieur et inférieur de la couche de garnissage sont constituées de pièces jointives.Preferably, the upper and lower elements of the packing layer consist of joined parts.

Selon une autre variante, la couche de garnissage est collée sur la paroi intérieure de la couche externe du chausson.According to another variant, the filling layer is glued to the inner wall of the outer layer of the liner.

Selon encore une autre caractéristique, le chausson de l'invention comporte, en outre, une couche interne d'habillage.According to yet another characteristic, the liner of the invention further comprises an internal covering layer.

Cette couche est alors rapportée sur la paroi intérieure de la couche intermédiaire de garnissage.This layer is then attached to the inner wall of the intermediate packing layer.

De préférence, la couche interne d'habillage est constituée de plusieurs pièces dont un bandeau intercalaire couvrant l'extrémité haute de l'élément inférieur de la couche de garnissage.Preferably, the inner covering layer consists of several parts including an intermediate band covering the top end of the lower element of the packing layer.

Avantageusement, cette zone d'articulation est une zone de pliage pourvue d'une série de lamelles déformables.Advantageously, this articulation zone is a folding zone provided with a series of deformable strips.

De préférence, l'élément inférieur recouvre la série de lamelles.Preferably, the lower element covers the series of slats.

Un autre objet de l'invention est une chaussure équipée d'un chausson tel que défini ci-dessus.Another object of the invention is a shoe equipped with a liner as defined above.

Grâce à sa couche intermédiaire de garnissage perfectionnée, le chausson de l'invention offre un rembourrage confortable, un calage plus précis et une plus grande facilité d'utilisation en guidant et en favorisant le passage du pied dans le chausson tant lors de son introduction que de son extraction.Thanks to its improved intermediate layer of padding, the liner of the invention offers comfortable padding, more precise wedging and greater ease of use by guiding and promoting the passage of the foot in the liner both during its introduction and of its extraction.

Le garnissage en au moins deux éléments permet de séparer les zones fonctionnelles et de les positionner de façon spécifique en optimisant chacune d'entre elles par l'ajustement de son profil, de sa géométrie et un choix spécifique de son matériau constitutif.The packing in at least two elements makes it possible to separate the functional zones and to position them in a specific way by optimizing each of them by adjusting its profile, its geometry and a specific choice of its constituent material.

Cette configuration permet, en outre, de réduire les risques d'arrachement du garnissage intermédiaire et de mieux s'adapter aux chaussons dont la partie haute est articulée sur la partie basse.This configuration also makes it possible to reduce the risk of tearing off the intermediate lining and to better adapt to the liners whose upper part is articulated on the lower part.

Enfin, les opérations de montage sont simplifiées par la présence des languettes qui permettent au monteur de positionner aisément les parties ou pièces du garnissage relativement les unes aux autres à la manière d'un puzzle avant d'effectuer leur assemblage et le collage sur le chausson.Finally, assembly operations are simplified by the presence of tabs which allow the fitter to easily position the parts or pieces of the lining relative to each other like a puzzle before assembling them and gluing them to the liner. .

BRÈVE DESCRIPTION DES FIGURESBRIEF DESCRIPTION OF FIGURES

D'autres caractéristiques et avantages de l'invention ressortiront à la lecture de la description qui va suivre, en référence aux figures annexées et détaillées ci-après.

  • La figure 1 représente une vue en développé d'un premier mode de réalisation du chausson de l'invention, après assemblage de la couche intermédiaire de garnissage sur la paroi intérieure de la couche externe du chausson.
  • Les figures 2A et 2B représentent, respectivement, une vue de côté d'un mode de réalisation du chausson de l'invention et une vue éclatée de ce chausson dont l'épaisseur est constituée de trois couches, respectivement une couche externe, une couche intermédiaire de garnissage et une couche interne d'habillage.
  • La figure 3 représente une vue partielle d'une variante du chausson selon l'invention, à plat et depuis l'extérieur où n'est représenté que l'assemblage entre la couche intermédiaire de garnissage et la couche interne d'habillage.
  • La figure 4 représente une vue à plat d'une autre variante du chausson selon l'invention, à plat et depuis l'intérieur où n'est représenté que l'assemblage entre la - couche intermédiaire de garnissage et la couche externe du chausson.
  • La figure 5 représente une vue de profil du chausson avec une coupe verticale partielle de son épaisseur.
Other characteristics and advantages of the invention will become apparent on reading the description which follows, with reference to the appended figures detailed below.
  • The figure 1 shows a developed view of a first embodiment of the liner of the invention, after assembly of the intermediate lining layer on the inner wall of the outer layer of the liner.
  • The figure 2A and 2B represent, respectively, a side view of one embodiment of the liner of the invention and an exploded view of this liner, the thickness of which consists of three layers, respectively an outer layer, an intermediate filling layer and a layer internal trim.
  • The picture 3 shows a partial view of a variant of the liner according to the invention, flat and from the outside, where only the assembly between the intermediate lining layer and the inner trim layer is shown.
  • The figure 4 shows a flat view of another variant of the liner according to the invention, flat and from the inside, where only the assembly between the intermediate lining layer and the outer layer of the liner is shown.
  • The figure 5 shows a profile view of the liner with a partial vertical section of its thickness.

Pour plus de clarté, les éléments identiques ou similaires sont repérés par des signes de référence identiques sur l'ensemble des figures.For greater clarity, identical or similar elements are identified by identical reference signs in all of the figures.

DESCRIPTION DÉTAILLÉE DE MODES DE REALISATIONDETAILED DESCRIPTION OF EMBODIMENTS

Le chausson représenté sur la figure 2A est destiné à une utilisation dans une coque de chaussure de ski alpin.The slipper represented on the figure 2A is intended for use in an alpine ski boot shell.

Le chausson comme illustré par la figure 2B comprend une couche externe 4 en deux parties, respectivement une partie basse 1 et une partie haute 2, destinée à apporter de la tenue au chausson et une doublure interne d'habillage 5 destinée à être en contact du pied.The slipper as illustrated by the figure 2B comprises an outer layer 4 in two parts, respectively a lower part 1 and an upper part 2, intended to provide hold to the liner and an internal trim lining 5 intended to be in contact with the foot.

De plus, dans le but d'améliorer encore le confort et l'isolation thermique du pied, et d'ajuster l'enveloppe extérieure du chausson au volume intérieur de la chaussure pour minimiser le jeu intercalaire entre le pied et la coque, des éléments de garnissage sont introduits et réunis, en cours de fabrication, pour former la couche intermédiaire 3 de garnissage entre la couche externe 4 et la doublure interne 5 du chausson.In addition, with the aim of further improving the comfort and thermal insulation of the foot, and of adjusting the outer shell of the liner to the interior volume of the shoe to minimize the space between the foot and the shell, elements of lining are introduced and joined together, during manufacture, to form the intermediate layer 3 of lining between the outer layer 4 and the inner lining 5 of the liner.

Lors du montage du chausson, les parties haute 2 et basse 1 sont reliées à une partie avant complémentaire A, à une semelle S ainsi qu'à une languette avant L.When fitting the liner, the upper 2 and lower 1 parts are connected to a complementary front part A, to a sole S and to a front tongue L.

Les deux parties 1, 2 formant la couche externe 4 du chausson sont éventuellement constituées de matières différentes, en polyéthylène (PE), en chlorure de polyvinyle (PVC), en polyuréthane (PU) ou en toute autre matière susceptible d'être utilisée pour réaliser une tige extérieure de chausson.The two parts 1, 2 forming the outer layer 4 of the liner are optionally made of different materials, polyethylene (PE), polyvinyl chloride (PVC), polyurethane (PU) or any other material likely to be used for make an outer shoe upper.

Ces deux parties 1 et 2 pourraient être constituées d'un seul élément dans le cas d'un chausson à structure simplifiée, non représenté.These two parts 1 and 2 could consist of a single element in the case of a shoe with a simplified structure, not shown.

En outre, la partie haute 2 de la couche externe 4 du chausson est généralement plus rigide que la partie basse 1 sensiblement plus souple. La rigidité de la partie haute 2 du chausson peut être obtenue par l'ajout d'éléments de type plaques en plastique, recouverts d'une couche textile.In addition, the upper part 2 of the outer layer 4 of the liner is generally more rigid than the lower part 1 which is substantially more flexible. The rigidity of the upper part 2 of the liner can be obtained by adding elements of the plastic plate type, covered with a textile layer.

Les parties haute 2 et basse 1 sont réalisées indépendamment l'une de l'autre et sont juxtaposées ou superposées puis assemblées par la suite par collage ou par couture, par exemple, par une couture en zigzag.The upper 2 and lower 1 parts are produced independently of one another and are juxtaposed or superposed and then assembled subsequently by gluing or by sewing, for example by a zigzag seam.

La partie basse 1 peut être réalisée en une seule pièce ou, peut éventuellement être constituée de deux flancs 1a et 1b respectivement gauche et droit, assemblés bord à bord par couture ou collage selon leur axe vertical médian, comme illustré par la figure 1.The lower part 1 can be made in a single piece or can possibly consist of two sides 1a and 1b respectively left and right, assembled edge to edge by sewing or gluing along their median vertical axis, as illustrated by the figure 1 .

La couche externe 4 du chausson, représentée à plat sur la figure 1, est mise en forme en rapprochant sur l'avant du chausson, les deux extrémités des flancs la, 1b.The outer layer 4 of the liner, shown flat on the figure 1 , is shaped by bringing together on the front of the liner, the two ends of the sides 1a, 1b.

La zone de liaison 12 entre les parties haute et basse du chausson peut être de forme ondulée ou rectiligne selon le mode de réalisation envisagé. Dans le mode de réalisation de l'invention illustré ici, notamment par les figures 1, 2B et 4, la zone de liaison 12 entre les parties haute et basse du chausson est une ligne de liaison 12a de forme ondulée.The connecting zone 12 between the upper and lower parts of the liner can be wavy or rectilinear in shape depending on the embodiment envisaged. In the embodiment of the invention illustrated here, in particular by the figure 1 , 2B and 4 , the connecting zone 12 between the upper and lower parts of the liner is a connecting line 12a of wavy shape.

Au cours de la marche, le chausson qui est au contact du pied et qui est positionné à l'intérieur d'une coque rigide constituée d'une tige et d'un collier articulé sur cette tige, doit pouvoir s'adapter au pivotement du collier de la chaussure relativement à sa tige en particulier vers l'arrière pour ne pas gêner la marche.During walking, the slipper which is in contact with the foot and which is positioned inside a rigid shell made up of a rod and a collar articulated on this rod, must be able to adapt to the pivoting of the collar of the shoe relative to its upper, in particular towards the rear so as not to interfere with walking.

A cet effet, le chausson peut être doté lui-aussi d'une zone d'articulation, par exemple, une zone de pliage 13, située à proximité de la zone de liaison 12, entre la partie haute 2 et la partie basse 1, comme illustré à la figure 4.For this purpose, the liner can also be provided with an articulation zone, for example, a folding zone 13, located near the connecting zone 12, between the upper part 2 and the lower part 1, as shown in figure 4 .

Dans la variante illustrée par la figure 4, la zone d'articulation est constituée par la réalisation de lamelles déformables 11 espacées de fentes verticales 10 situées à l'arrière du chausson au sein de sa couche externe 4.In the variant illustrated by the figure 4 , the articulation zone is constituted by the production of deformable strips 11 spaced apart from vertical slots 10 located at the rear of the liner within its outer layer 4.

Le chausson, illustré sur la figure 1 à plat et en développé avant mise en forme et assemblage, comprend également une couche intermédiaire de garnissage 3.The slipper, illustrated on the figure 1 flat and developed before shaping and assembly, also includes an intermediate layer of filling 3.

Cette couche de garnissage 3 est généralement collée sur la face interne de la couche externe du chausson.This padding layer 3 is generally glued to the inner face of the outer layer of the liner.

La couche de garnissage comprend au moins deux éléments, respectivement, un élément supérieur 32 et un élément inférieur 31 pourvu d'une languette haute 31a de guidage s'étendant au-dessus de la zone de liaison 12 entre les parties haute 2 et basse 1 du chausson.The packing layer comprises at least two elements, respectively, an upper element 32 and a lower element 31 provided with an upper guide tongue 31a extending above the connecting zone 12 between the upper 2 and lower 1 parts. of the slipper.

Lorsque la zone de liaison 12 est pourvue d'une articulation ou d'un élément souple (non représenté) permettant la flexion de la partie haute 2 relativement à la partie basse 1, la languette 31a doit pouvoir suivre cette déformation pour ne pas bloquer ou entraver ce mouvement de pivotement.When the connecting zone 12 is provided with a hinge or a flexible element (not shown) allowing the bending of the upper part 2 relative to the lower part 1, the tongue 31a must be able to follow this deformation so as not to block or hinder this pivoting movement.

Ce mode de réalisation de la couche de garnissage 3, en au moins deux éléments constitutifs 31, 32, permet d'individualiser et d'optimiser les fonctions propres de chacun des éléments du garnissage tant au niveau des matériaux constitutifs que de leur profil et de leurs dimensions (notamment épaisseur, largeur et hauteur).This embodiment of the packing layer 3, in at least two constituent elements 31, 32, makes it possible to individualize and optimize the specific functions of each of the packing elements both in terms of the constituent materials and their profile and their dimensions (in particular thickness, width and height).

La couche de garnissage 3 participe également à la rigidité de l'ensemble du chausson et en particulier contribue à donner plus de rigidité à la partie haute qu'à la partie basse.The padding layer 3 also participates in the rigidity of the entire liner and in particular contributes to giving more rigidity to the upper part than to the lower part.

L'élément inférieur 31 de la couche de garnissage 3 est réalisé, tout comme l'élément supérieur 32, par découpe d'une plaque de mousse.The lower element 31 of the packing layer 3 is produced, like the upper element 32, by cutting out a sheet of foam.

Ces éléments 31, 32 sont réalisés, par exemple, en PE, en EPDM, en EVA, en aggloméré, ou en toute matière utilisée généralement dans une fonction de rembourrage.These elements 31, 32 are made, for example, of PE, EPDM, EVA, chipboard, or any material generally used in a cushioning function.

De préférence, l'élément inférieur 31 sera réalisé avec un matériau élastiquement souple et déformable, tandis que l'élément supérieur 32 sera réalisé avec un matériau de plus grande dureté. Aussi, l'élément supérieur 32 est réalisé, par exemple, en PE de densité comprise entre 90 et 110 kg/m3 et l'élément inférieur 31 est réalisé, par exemple, en EPDM de densité comprise entre 65 et 110 kg/m3.Preferably, the lower element 31 will be made with an elastically flexible and deformable material, while the upper element 32 will be made with a material of greater hardness. Also, the upper element 32 is made, for example, of PE with a density of between 90 and 110 kg/m 3 and the lower element 31 is made, for example, of EPDM with a density of between 65 and 110 kg/m 3 .

L'élément inférieur 31 est découpé selon un patron (dimensions et profil) tel que son extrémité haute s'étende, à une hauteur située au moins au-dessus de la zone de rotation du talon du pied lors de l'introduction du pied dans le chausson.The lower element 31 is cut according to a pattern (dimensions and profile) such that its upper end extends, at a height situated at least above of the rotation zone of the heel of the foot when introducing the foot into the liner.

Dans le cas illustré, où la partie supérieure de l'élément inférieur 31 est une languette 31a, l'extrémité haute de l'élément inférieur 31 correspond à l'extrémité haute de la languette 31a.In the case illustrated, where the upper part of the lower element 31 is a tongue 31a, the upper end of the lower element 31 corresponds to the upper end of the tongue 31a.

Cette zone de rotation du talon du pied est schématisée sur la figure 5 au niveau du plan de coupe.This rotation zone of the heel of the foot is schematized on the figure 5 at the cutting plane.

Lors du chaussage, le pied est introduit dans une position verticale, puis pivote pour atteindre une position horizontale au fond du chausson et à plat sur la semelle S. Cette zone de pivotement correspond à la zone de rotation du talon R illustrée sur la figure 5.When putting on the foot, the foot is introduced into a vertical position, then pivots to reach a horizontal position at the bottom of the liner and flat on the sole S. This pivoting zone corresponds to the rotation zone of the heel R illustrated on the figure 5 .

Dans le cas d'un chausson à couche externe en deux parties respectivement haute 2 et basse 1, l'extrémité haute de l'élément inférieur 31 est, dans la variante illustrée, l'extrémité haute de la languette 31a s'étend au moins au-dessus de la zone de liaison 12 entre la partie haute et la partie basse, pour être positionnée à une hauteur comprise entre 1/2 et 2/3 de la hauteur totale du chausson.In the case of a liner with an outer layer in two parts respectively upper 2 and lower 1, the upper end of the lower element 31 is, in the variant illustrated, the upper end of the tongue 31a extends at least above the connecting zone 12 between the upper part and the lower part, to be positioned at a height of between 1/2 and 2/3 of the total height of the liner.

Les dimensions ainsi que la forme choisies pour la languette 31a permettent d'obtenir un bon compromis entre une rigidité qui reste suffisamment élevée de l'ensemble du chausson dans la partie haute et un meilleur confort dans la zone de rotation du talon du pied lors du chaussage.The dimensions as well as the shape chosen for the tongue 31a make it possible to obtain a good compromise between a rigidity which remains sufficiently high for the entire liner in the upper part and better comfort in the zone of rotation of the heel of the foot during footwear.

L'extrémité haute de la languette 31a est également conçue de façon à se prolonger au-delà de la ligne de liaison 12 entre les parties haute 2 et basse 1 du chausson et, éventuellement; jusqu'aux bords latéraux de l'élément inférieur 31 de la couche de garnissage 3 via une découpe curviligne 310, comme illustré par les figures 1 et 4. Les contours de la languette 31a peuvent être curvilignes ou ondulés, ou bien rectilignes, ou bien encore constitués de lignes brisées, pour former, par exemple, une languette triangulaire ou rectangulaire.The upper end of the tongue 31a is also designed so as to extend beyond the connecting line 12 between the upper 2 and lower 1 parts of the liner and, possibly; to the side edges of the lower element 31 of the packing layer 3 via a curvilinear cutout 310, as illustrated by the figure 1 and 4 . The contours of the tongue 31a can be curvilinear or wavy, or even rectilinear, or even consist of broken lines, to form, for example, a triangular or rectangular tongue.

De préférence, la languette présente une forme symétrique par rapport à l'axe médian X du chausson.Preferably, the tongue has a symmetrical shape with respect to the median axis X of the liner.

Selon des variantes non représentées, la languette 31a présentera une asymétrie par rapport à l'axe X et son extrémité haute pourra être constituée, par exemple, d'une pointe ou de plusieurs pointes en dents de scie.According to variants not shown, the tongue 31a will have an asymmetry with respect to the axis X and its upper end may consist, for example, of a point or of several sawtooth points.

La partie supérieure de l'élément inférieur pourrait aussi être constituée de plusieurs languettes.The upper part of the lower element could also consist of several tongues.

De façon préférentielle, la largeur de la base de la languette est comprise entre 2 et 15 cm, voir entre 5 et 13 cm.Preferably, the width of the base of the tongue is between 2 and 15 cm, or even between 5 and 13 cm.

Dans un autre mode de réalisation non représenté, la languette peut s'étendre jusqu'aux bords latéraux de l'élément supérieur 32 de la couche de garnissage 3 et, éventuellement, jusqu'aux bords latéraux de la couche externe 4 du chausson.In another embodiment not shown, the tongue may extend as far as the side edges of the upper element 32 of the padding layer 3 and, possibly, as far as the side edges of the outer layer 4 of the liner.

Les épaisseurs respectives de l'élément supérieur 32 et de l'élément inférieur 31 sont sensiblement identiques et comprises entre 0,5 et 1,2 cm au moins dans leur zone de jonction.The respective thicknesses of the upper element 32 and of the lower element 31 are substantially identical and comprised between 0.5 and 1.2 cm at least in their junction zone.

L'élément supérieur 32 se prolonge éventuellement jusqu'à la partie supérieure de la partie haute 2 de la couche externe 4 tandis que l'élément inférieur 31 s'étend largement dans la partie basse de la couche externe 4.The upper element 32 possibly extends to the upper part of the upper part 2 of the outer layer 4 while the lower element 31 extends widely into the lower part of the outer layer 4.

Dans la variante illustrée par la figure 4, l'élément inférieur 31 de la couche de garnissage 3 recouvre la série de lamelles 11 qui crée la zone de pliage 13, et l'extrémité haute de la languette 31a s'étend au-dessus de la zone de liaison 12.In the variant illustrated by the figure 4 , the lower element 31 of the packing layer 3 covers the series of strips 11 which create the folding zone 13, and the upper end of the tongue 31a extends above the connection zone 12.

Par ailleurs, la couche de garnissage 3 peut être recouverte d'une couche interne 5 d'habillage, de protection et de confort formant doublure et recouvrant non seulement la couche 3, mais également toute la surface interne du chausson. Cette couche- interne 5 peut être monomatièreou formée de l'assemblage jointif de plusieurs pièces de tissu, comme illustré sur la figure 3.Furthermore, the padding layer 3 can be covered with an inner layer 5 for covering, protection and comfort forming a lining and covering not only the layer 3, but also the entire inner surface of the liner. This inner layer 5 can be single-material or formed from the joined assembly of several pieces of fabric, as illustrated in the picture 3 .

Plus précisément, la couche interne 5 est réalisée en trois pièces, constituées, respectivement, d'une jupe inférieure 511, d'un bandeau intercalaire 512 et d'une collerette supérieure 513.More precisely, the inner layer 5 is made in three parts, made up, respectively, of a lower skirt 511, of an intermediate band 512 and of an upper collar 513.

La couche interne 5, destinée à être en contact direct avec le pied, est en général réalisée avec des matériaux textiles donnant des propriétés de confort et d'isolation thermique au chausson.The inner layer 5, intended to be in direct contact with the foot, is generally made of textile materials giving comfort and thermal insulation properties to the liner.

Dans la variante de l'invention illustrée par la figure 3, le bandeau intercalaire 512 recouvre la languette 31a de la couche intermédiaire de garnissage 3. Le bandeau 512 présente une bordure convexe haute 512a ainsi qu'une bordure convexe basse 512b.In the variant of the invention illustrated by the picture 3 , the intermediate band 512 covers the tongue 31a of the intermediate layer of lining 3. The band 512 has a high convex edge 512a as well as a low convex edge 512b.

Le chausson illustré par les figures comporte au moins deux couches et, de préférence, trois couches dont une couche de garnissage mais il pourrait, selon des variantes de l'invention, comporter des couches supplémentaires sans sortir du cadre de l'invention.The liner illustrated by the figures comprises at least two layers and, preferably, three layers including a padding layer but it could, according to variants of the invention, comprise additional layers without departing from the scope of the invention.

La couche intermédiaire de garnissage pourrait également être elle-même constituée de plusieurs sous-couches, au moins l'une de ces sous-couches comportant une languette telle que définie selon l'invention.The intermediate packing layer could also itself consist of several sub-layers, at least one of these sub-layers comprising a tab as defined according to the invention.

Claims (11)

  1. Inner boot for an item of sports footwear, comprising at least one outer layer (4) consisting of a lower part (1) and an upper part (2), and comprising a padding layer (3) having at least two elements, respectively an upper element (32) and a lower element (31), the upper end of the lower element of said padding layer (3) being positioned above a region of rotation of the heel when the foot is introduced into the inner boot, and extending at least above a connection region (12) between the lower part and the upper part of the said outer layer (4) of the inner boot, the inner boot including an articulation region close to the connection region (12) between the lower part (1) and the upper part (2) of the outer layer (4).
  2. Inner boot according to claim 1, characterized in that the upper end of the lower element (31) is positioned at a height of between 1/2 and 2/3 of the total height of the inner boot.
  3. Inner boot according to either of the preceding claims, characterized in that the upper part of the lower element (31) is formed by a tongue (31a).
  4. Inner boot according to any of the preceding claims, characterized in that the said lower element (31) is made of an elastically deformable material while the upper element (32) is made of a material of greater hardness.
  5. Inner boot according to any of the preceding claims, characterized in that the said upper element (32) and said lower element (31) of the padding layer (3) consist of contiguous parts.
  6. Inner boot according to any of the preceding claims, characterized in that the said padding layer (3) is glued to the inner wall of the outer layer (4) of the inner boot.
  7. Inner boot according to any of the preceding claims, characterized in that it further includes an inner covering layer (5), the padding layer (3) being interposed between this inner layer (5) and the outer layer (4).
  8. Inner boot according to the preceding claim, characterized in that the inner covering layer (5) consists of a plurality of parts including an intermediate band (512) covering the upper end of the lower element (31) of the padding layer (3).
  9. Inner boot according to any of the preceding claims, characterized in that the said articulation region is a folding region (13) provided with a series of deformable strips (11).
  10. Inner boot according to the preceding claim, characterized in that the lower element (31) covers the series of strips (11).
  11. Item of footwear equipped with an inner boot according to any of the preceding claims.
EP14425118.8A 2014-09-26 2014-09-26 Inner boot with raised padding for sports footwear Active EP3000342B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
EP14425118.8A EP3000342B1 (en) 2014-09-26 2014-09-26 Inner boot with raised padding for sports footwear

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EP3000342B1 true EP3000342B1 (en) 2022-03-30

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Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0249601A (en) * 1988-08-11 1990-02-20 Pisute Kurieito:Kk Foot shape originating method for skiing boots and structure for skiing boots for its origination

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Publication number Priority date Publication date Assignee Title
FR2644044A1 (en) * 1989-03-08 1990-09-14 Recticel Sa Inner bootee for a sports shoe and method for manufacturing such a bootee
JPH05505116A (en) * 1990-12-17 1993-08-05 アッカ　ティ　エンメ　スポルト　ソシエタ　ペル　アチオニ inner boots
IT1266417B1 (en) * 1993-04-22 1996-12-30 Nordica Spa INTERNAL SHOE STRUCTURE, ESPECIALLY FOR SPORTS FOOTWEAR
FR2724295B1 (en) * 1994-09-08 1996-12-20 Sidas Sa SPORTS SHOE SHOE
FR2726743B1 (en) 1994-11-10 1997-01-03 Salomon Sa COMFORT SHOE FOR SKI SHOE
IT1288681B1 (en) 1996-10-30 1998-09-23 Nordica Spa SPORT FOOTWEAR WITH IMPROVED WEARABILITY
WO2006077606A1 (en) * 2005-01-21 2006-07-27 Tecnica Spa Inner lining shoe for sport footwear having substantially rigid shell and leg-piece
FR2971918B1 (en) * 2011-02-25 2013-03-01 Aubisque Ets Palau Sa L INTERNAL COMFORT SHOE FOR SKI SHOES
FR2991854B1 (en) * 2012-06-13 2014-07-18 Salomon Sas INTERNAL SHOES FOR SPORTS SHOES
DE102013102685A1 (en) * 2013-03-15 2014-10-02 Deeluxe Sportartikel Handels Gmbh Liner and method of making the same

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0249601A (en) * 1988-08-11 1990-02-20 Pisute Kurieito:Kk Foot shape originating method for skiing boots and structure for skiing boots for its origination

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