WO2009044023A1 - Shoe sole and device formethod for forming said sole - Google Patents

Shoe sole and device formethod for forming said sole Download PDF

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Publication number
WO2009044023A1
WO2009044023A1 PCT/FR2008/051550 FR2008051550W WO2009044023A1 WO 2009044023 A1 WO2009044023 A1 WO 2009044023A1 FR 2008051550 W FR2008051550 W FR 2008051550W WO 2009044023 A1 WO2009044023 A1 WO 2009044023A1
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WO
WIPO (PCT)
Prior art keywords
sole
layer
shoe
heating
support
Prior art date
Application number
PCT/FR2008/051550
Other languages
French (fr)
Inventor
François DUVILLARD
Original Assignee
Societe D'importation De Diffusion Ou Distribution D'articles De Sport S.I.D.A.S.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Societe D'importation De Diffusion Ou Distribution D'articles De Sport S.I.D.A.S. filed Critical Societe D'importation De Diffusion Ou Distribution D'articles De Sport S.I.D.A.S.
Priority to US12/676,920 priority Critical patent/US20110016753A1/en
Priority to CA2699520A priority patent/CA2699520A1/en
Priority to EP08834983A priority patent/EP2185019A1/en
Priority to JP2010524547A priority patent/JP2010538722A/en
Publication of WO2009044023A1 publication Critical patent/WO2009044023A1/en

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/14—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined made of sponge, rubber, or plastic materials
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/10—Metal
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/12—Soles with several layers of different materials
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/003—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined characterised by the material
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/28—Adapting the inner sole or the side of the upper of the shoe to the sole of the foot

Definitions

  • Shoe sole and device for shaping such a sole Shoe sole and device for shaping such a sole.
  • the invention relates to a shoe sole, in particular for practicing a sport.
  • the invention further relates to a device for shaping this sole.
  • thermoformable material is a material that becomes malleable when heated. The material is then molded into a specific shape that it will keep during its cooling.
  • the different layers are merged into production to form a standard manufactured soleplate.
  • the structure and shape of such a sole are designed according to the movement exerted by the foot related to the practice of a specific sport.
  • the sole has areas to stabilize, dampen or propel specific parts of the foot.
  • a foot has a complex structure with a set of bones, muscles and joint levels.
  • the foot is built on a series of arches. This series of arches is reinforced by muscles and ligaments of the foot to form a vault commonly called arch.
  • the arch may have varying volume, size or location from one individual to another. Each individual therefore has a different foot morphology.
  • Such a sole manufactured in series therefore has the major disadvantage that it can not adapt to a particular foot or different morphologies.
  • the invention aims to solve these disadvantages by proposing a standard sole, manufactured industrially and capable of being deformed into precise locations, to adapt to the shape of the foot while maintaining the qualities of maintenance and cushioning of the foot in specific areas.
  • the invention relates to a shoe sole comprising a support of general shape corresponding to the surface of at least a portion of the bottom of the shoe and comprising at least a first layer of thermoformable material, characterized in that it comprises at least a second layer made of thermoformable material, the second layer partially covering the first layer to leave at least one free zone at the first layer, the material constituting the first layer having a thermoforming temperature below the temperature thermoforming the material constituting the second layer, and in that the first layer extends at least in areas of the sole intended to carry the rear and central portions of a foot and substantially to the lateral edges of the support while that the second layer is disposed in the rear area of the sole.
  • thermoforming temperature of the first layer it is possible to achieve the adaptation of the sole to the precise shape of a user's foot by heating it to the thermoforming temperature of the first layer. This layer can then deform while the last layer which has a higher thermoforming temperature retains its shape.
  • the fact that the second layer is arranged only in the rear area of the sole makes it possible to adapt the portion of the sole that needs the most custom, while leaving free the sensitive part of the foreground. foot.
  • the second layer is set back from the first layer to leave free at least one lateral zone.
  • the second layer is located above the first layer.
  • the thermoforming temperature of the constituent material of the first layer is between 60 and 70 ° C.
  • the first layer consists of a polyester composite resin.
  • the second layer consists of a composite resin comprising polycaprolactone, polyamide and a polyester grid.
  • the invention also relates to a device for shaping such a sole, characterized in that it comprises: - a box having a lower part and an upper part,
  • heating means located in the lower part of the box and arranged to heat the soleplate to a temperature corresponding to the thermoforming temperature of the first layer; means for supporting at least one soleplate disposed above the means for heating the soleplate at a temperature corresponding to the thermoforming temperature of the first layer; heating, these support means having at least one opening disposed facing at least the free zone of the first layer whose softening is to be performed.
  • the device makes it possible to heat the sole in order to adapt it to a particular morphology of the foot.
  • the device comprises detection means designed to detect the presence of a sole disposed on the support means of at least one sole and to enable activation of the heating means when the presence of a sole is detected.
  • the detection means of the device are constituted by at least one hinged pallet for supporting the rear portion of the sole actuating a contact when a sole is disposed on the articulated pallet.
  • the detection means comprise two pallets, one for each soleplate.
  • the device comprises protection means, constituted by a cover, mounted articulated on the box and movable between an open position and a closed position, the closed position allowing the activation of the means. of heating.
  • protection means constituted by a cover, mounted articulated on the box and movable between an open position and a closed position, the closed position allowing the activation of the means. of heating.
  • the heating means comprise at least one lamp. This characteristic makes it possible to modulate the heating power in an easy way for the user, according to the number of lamps and the duration of lighting.
  • the heating means comprise three lamps of elongate shape, arranged parallel and so that a lamp is disposed under each sole and a lamp is disposed at the inner edges of two flanges.
  • the sole support means comprise a plate having two wings forming a V.
  • Figure 1 is a bottom view of a sole
  • Figure 2 is a cross section along the line INI of Figure 1.
  • Figure 3 is a schematic representation of the device.
  • Figure 4 is a schematic transverse view of the device.
  • Figure 1 shows a shoe sole 1.
  • the sole 1 is intended to be inserted into a shoe.
  • the sole 1 comprises a support 3 of general shape corresponding to the bottom surface of a shoe.
  • the sole 1 comprises a first layer 5 and a second layer 6 of thermoformable materials.
  • the first layer 5 is disposed on the support 3.
  • the first layer 5 extends substantially in areas of the support 3 intended to carry the rear and central portions of a foot and substantially to the side edges 7 of the support 3.
  • the second layer 6 is disposed on the first layer 5 in the rear part of the support 3.
  • the second layer 6 is set back from the first layer 5 to leave free a zone of the first layer 5 comprising the lateral edges 7, the rear edge 8, the central zone 9 and the center of the heel 10 of the support 3.
  • the first and second layers 5, 6 are made using thermoformable materials, consisting of composite resins.
  • the composite resin of the first layer 5 is a polyester.
  • the thermoforming temperature of the polyester resin is 65 ° C.
  • the composite resin of the second layer 6 consists of polycaprolactone, polyamide and a polyester grid.
  • the thermoforming temperature of the second layer 6 is between 75 and 80 ° C.
  • a device 15 is used for shaping the sole 1.
  • the device 15 is in the form of a box 16 of generally parallelepipedal shape comprising a lower portion 17 and an upper portion 18.
  • the lower portion 17 of the box 16 defines a volume on the bottom of which three lamps 20 are arranged in parallel.
  • three lamps are arranged longitudinally, one being central and the other two symmetrical on either side of the first.
  • These three lamps are halogen lamps with a unit power of 500 Watts, which provides a total power of 1500 Watts.
  • the lower 17 and upper 18 parts are separated by a support plate 19 having two wings 21, 22 forming, seen in cross section, a V whose tip is facing downwards and which is located in the longitudinal median plane of the box. These two wings 21, 22 form support surfaces for two flanges.
  • the support plate has, in its central part, an opening 26 for preferential heating of the zones of the soles located opposite the opening.
  • a central rib 24 In front of the opening 26 and at the tip of the V, is formed a central rib 24 and longitudinal upwardly.
  • Behind the opening 26 are formed two ribs 25, in the form of arcs of circles, each having a central and longitudinal section connected to a transverse section turned outwards. These ribs serve to ensure the positioning of two flanges on the two wings 21, 22 of the support plate.
  • the upper part of the box is equipped, above the support plate 19 and behind the opening 26, two articulated pallets 27, 28 intended to serve to support the posterior areas of two soles arranged in the device.
  • Each pallet is associated with an electrical contact, not shown, disposed on the lamp supply circuit and intended to be closed by the pallet under the weight of a sole resting on it.
  • the contacts associated with the two pallets are mounted in series.
  • the upper face of the box is closed by a glass protective cover 29, mounted hinged along one of its edges 30.
  • This cover 29 is also associated with an electrical contact mounted on the lamp supply circuit, so that to allow this power only when the hood is closed.
  • the control of the power supply of the lamps may include a delay device for heating for a predetermined time, depending on the softening temperature of the first layer 5 and the mass to be softened.
  • the heating time may, for example, be 10 seconds.
  • this device is as follows: Starting from a pair of soles shaped as standard in the factory and adapted to the size of the feet of a user, the cover 29 of the device is open and the two soles are positioned on their respective supports, 21, 22 and on the pallets 27,28. The contacts associated with the latter are actuated in the closed position. The cover 29 is then closed, and actuates in the closed position the contact associated with it. A pulse on a contactor initiates a heating cycle of a determined duration, ensuring the softening of the first layer 5 of thermoplastic material, but not of the second layer 6 which is located in the rear zone of stabilization and maintenance of the foot.
  • the positioning of the lamps and the inclination of the supports 21, 22 of the plate 19 ensure a homogeneous heating in the areas whose shape must be adapted, which is in particular the arch area.
  • the soles are removed from the device and are positioned either in the shoes of the user or on a molding support before conformation by the user of the two soles to the shape of his feet, by support of the feet on soles that are in a partially malleable state. After cooling, the soles retain the shape that has been given to them. It goes without saying that the invention is not limited to only the embodiments of this sole shoe and the device for shaping the sole, described above as an example, but it embraces the otherwise all variants.

Abstract

The invention relates to a shoe sole (1), in particular for practicing a sport, comprising a support (3) of a general form corresponding to the surface of at least a part of the base of the shoe and comprising at least one first layer in a thermoform material, characterised in comprising at least one second layer made from thermoform material, the second layer (6) partly covering the first layer (5) in order to leave at least one free zone (7, 8, 9, 10) at the level of the first layer (5),the material making up the first layer (5) having a thermoform temperature less than the thermoform temperature of the material making up the second layer (6). The invention further relates to a device for forming said sole.

Description

Semelle de chaussure et dispositif permettant la mise en forme d'une telle semelle. Shoe sole and device for shaping such a sole.
L'invention concerne une semelle de chaussure, en particulier pour la pratique d'un sport. L'invention concerne en outre un dispositif de mise en forme de cette semelle.The invention relates to a shoe sole, in particular for practicing a sport. The invention further relates to a device for shaping this sole.
La pratique d'un sport, tel que la course à pied, le golf ou le ski, fait travailler des zones spécifiques du pied. Le travail de ces zones spécifiques se caractérise par des pressions et des contraintes plus ou moins importantes supportées par le pied et liées au mouvement exercé en fonction du sport considéré.The practice of a sport, such as running, golfing or skiing, involves specific areas of the foot. The work of these specific areas is characterized by pressures and constraints of varying degrees of foot support and movement related to the sport in question.
De façon traditionnelle, les fabricants produisent des semelles de chaussure, en particulier pour la pratique d'un sport, comprenant un support de forme générale correspondant à la surface d'au moins une partie du fond de la chaussure, comportant des matériaux thermoformables. Un matériau thermoformable est un matériau qui devient malléable lorsqu'il est porté en température. Le matériau est alors moulé dans une forme déterminée qu'il gardera lors de son refroidissement.Traditionally, manufacturers produce shoe soles, especially for the practice of a sport, comprising a generally shaped support corresponding to the surface of at least a portion of the bottom of the shoe, comprising thermoformable materials. A thermoformable material is a material that becomes malleable when heated. The material is then molded into a specific shape that it will keep during its cooling.
Les différentes couches sont fusionnées en production afin de constituer une semelle standard manufacturée. La structure et la forme d'une telle semelle sont conçues en fonction du mouvement exercé par le pied lié à la pratique d'un sport spécifique. Pour assurer le confort et améliorer les performances de l'utilisateur, la semelle comporte des zones pour stabiliser, amortir ou encore propulser certaines parties spécifiques du pied. Un pied présente une structure complexe comportant un ensemble d'os, de muscles et de niveaux d'articulation. En particulier, le pied est construit sur une série d'arches. Cette série d'arches est renforcée par des muscles et des ligaments du pied pour former une voûte communément appelée voûte plantaire. La voûte plantaire peut présenter un volume, une taille ou un emplacement variables d'un individu à un autre. Chaque individu présente par conséquent une morphologie de pied différente.The different layers are merged into production to form a standard manufactured soleplate. The structure and shape of such a sole are designed according to the movement exerted by the foot related to the practice of a specific sport. To ensure comfort and improve user performance, the sole has areas to stabilize, dampen or propel specific parts of the foot. A foot has a complex structure with a set of bones, muscles and joint levels. In particular, the foot is built on a series of arches. This series of arches is reinforced by muscles and ligaments of the foot to form a vault commonly called arch. The arch may have varying volume, size or location from one individual to another. Each individual therefore has a different foot morphology.
Une telle semelle fabriquée en série présente de ce fait l'inconvénient majeur qu'elle ne peut pas s'adapter à un pied particulier ou à différentes morphologies. L'invention vise à résoudre ces inconvénients en proposant une semelle standard, fabriquée de façon industrielle et capable d'être déformée en des emplacements précis, pour s'adapter à la forme du pied tout en conservant les qualités de maintien et d'amortissement du pied en des zones spécifiques.Such a sole manufactured in series therefore has the major disadvantage that it can not adapt to a particular foot or different morphologies. The invention aims to solve these disadvantages by proposing a standard sole, manufactured industrially and capable of being deformed into precise locations, to adapt to the shape of the foot while maintaining the qualities of maintenance and cushioning of the foot in specific areas.
A cet effet, l'invention concerne une semelle de chaussure comprenant un support de forme générale correspondant à la surface d'au moins une partie du fond de la chaussure et comportant au moins une première couche en matériau thermoformable, caractérisée en ce qu'elle comprend au moins une deuxième couche réalisée en matériau thermoformable, la deuxième couche recouvrant partiellement la première couche afin de laisser au moins une zone libre au niveau de la première couche, le matériau constitutif de la première couche présentant une température de thermoformage inférieure à la température de thermoformage du matériau constitutif de la deuxième couche, et en ce que la première couche s'étend au moins dans des zones de la semelle destinées à porter les portions arrière et centrale d'un pied et sensiblement jusqu'aux bords latéraux du support tandis que la deuxième couche est disposée dans la zone arrière de la semelle.For this purpose, the invention relates to a shoe sole comprising a support of general shape corresponding to the surface of at least a portion of the bottom of the shoe and comprising at least a first layer of thermoformable material, characterized in that it comprises at least a second layer made of thermoformable material, the second layer partially covering the first layer to leave at least one free zone at the first layer, the material constituting the first layer having a thermoforming temperature below the temperature thermoforming the material constituting the second layer, and in that the first layer extends at least in areas of the sole intended to carry the rear and central portions of a foot and substantially to the lateral edges of the support while that the second layer is disposed in the rear area of the sole.
Grâce aux dispositions selon l'invention, il est possible de réaliser l'adaptation de la semelle à la forme précise d'un pied d'utilisateur par chauffage de celle-ci à la température de thermoformage de la première couche. Cette couche peut alors se déformer tandis que la dernière couche qui a une température de thermoformage plus élevée conserve sa forme.Thanks to the provisions of the invention, it is possible to achieve the adaptation of the sole to the precise shape of a user's foot by heating it to the thermoforming temperature of the first layer. This layer can then deform while the last layer which has a higher thermoforming temperature retains its shape.
En outre, le fait que la deuxième couche soit disposée uniquement dans la zone arrière de la semelle permet d'adapter la portion de la semelle qui a le plus besoin d'être personnalisée, tout en laissant libre la partie sensible de l'avant-pied.In addition, the fact that the second layer is arranged only in the rear area of the sole makes it possible to adapt the portion of the sole that needs the most custom, while leaving free the sensitive part of the foreground. foot.
Préférentiellement, dans la zone arrière de la semelle, la deuxième couche est disposée en retrait de la première couche afin de laisser libre au moins une zone latérale.Preferably, in the rear zone of the sole, the second layer is set back from the first layer to leave free at least one lateral zone.
Suivant cette disposition, il est possible de procéder à la mise en forme de la semelle dans les zones correspondant au centre du pied, à sa voûte plantaire et ses bords latéraux, tout en conservant la conformation initiale de la semelle dans sa zone de talon avec ses caractéristiques de stabilisation et d'amortissement.According to this arrangement, it is possible to proceed to the shaping of the sole in the zones corresponding to the center of the foot, to the arch of the foot and its lateral edges, while maintaining the initial conformation of the sole in its heel area with its stabilization and damping characteristics.
Selon une caractéristique de l'invention, la deuxième couche est située au-dessus de la première couche. Avantageusement, la température de thermoformage du matériau constitutif de la première couche est comprise entre 60 et 70°C.According to one characteristic of the invention, the second layer is located above the first layer. Advantageously, the thermoforming temperature of the constituent material of the first layer is between 60 and 70 ° C.
Préférentiellement, la première couche est constituée par une résine composite polyester. Selon une caractéristique de l'invention, la deuxième couche est constituée par une résine composite comportant du polycaprolactone, du polyamide et une grille polyester.Preferably, the first layer consists of a polyester composite resin. According to one characteristic of the invention, the second layer consists of a composite resin comprising polycaprolactone, polyamide and a polyester grid.
L'invention concerne également un dispositif de mise en forme d'une telle semelle, caractérisé en ce qu'il comprend : - un caisson présentant une partie inférieure et une partie supérieure,The invention also relates to a device for shaping such a sole, characterized in that it comprises: - a box having a lower part and an upper part,
- des moyens de chauffage situés dans la partie inférieure du caisson et agencés pour chauffer la semelle à une température correspondant à la température de thermoformage de la première couche, - des moyens de support d'au moins une semelle disposés au- dessus des moyens de chauffage, ces moyens de support comportant au moins une ouverture disposée en regard d'au moins la zone libre de la première couche dont le ramollissement est à effectuer.heating means located in the lower part of the box and arranged to heat the soleplate to a temperature corresponding to the thermoforming temperature of the first layer; means for supporting at least one soleplate disposed above the means for heating the soleplate at a temperature corresponding to the thermoforming temperature of the first layer; heating, these support means having at least one opening disposed facing at least the free zone of the first layer whose softening is to be performed.
Le dispositif permet de chauffer la semelle afin de l'adapter à une morphologie particulière du pied.The device makes it possible to heat the sole in order to adapt it to a particular morphology of the foot.
Avantageusement, le dispositif comporte des moyens de détection conçus pour détecter la présence d'une semelle disposée sur les moyens de support d'au moins une semelle et pour permettre une activation des moyens de chauffage lorsque la présence d'une semelle est détectée. Préférentiellement, les moyens de détection du dispositif sont constitués par au moins une palette articulée destinée au support de la partie arrière de la semelle actionnant un contact lorsqu'une semelle est disposée sur la palette articulée.Advantageously, the device comprises detection means designed to detect the presence of a sole disposed on the support means of at least one sole and to enable activation of the heating means when the presence of a sole is detected. Preferably, the detection means of the device are constituted by at least one hinged pallet for supporting the rear portion of the sole actuating a contact when a sole is disposed on the articulated pallet.
Avantageusement, les moyens de détection comprennent deux palettes, une pour chaque semelle.Advantageously, the detection means comprise two pallets, one for each soleplate.
Selon une caractéristique de l'invention, le dispositif comporte des moyens de protection, constitués par un capot, monté articulé sur le caisson et mobile entre une position d'ouverture et une position de fermeture, la position de fermeture permettant l'activation des moyens de chauffage. La mise en place de deux semelles dans le dispositif permet d'actionner le contact de chaque palette. L'actionnement des deux contacts et le positionnement du capot en position de fermeture permettent l'activation des moyens de chauffage.According to a characteristic of the invention, the device comprises protection means, constituted by a cover, mounted articulated on the box and movable between an open position and a closed position, the closed position allowing the activation of the means. of heating. The establishment of two soles in the device makes it possible to actuate the contact of each pallet. Actuation of the two contacts and the positioning of the hood in the closed position allow the activation of the heating means.
Selon une caractéristique de l'invention, les moyens de chauffage comprennent au moins une lampe. Cette caractéristique permet de moduler la puissance de chauffage de manière aisée pour l'utilisateur, en fonction du nombre de lampes et de la durée d'éclairage.According to one characteristic of the invention, the heating means comprise at least one lamp. This characteristic makes it possible to modulate the heating power in an easy way for the user, according to the number of lamps and the duration of lighting.
Avantageusement, les moyens de chauffage comprennent trois lampes de forme allongée, disposées parallèlement et de manière à ce qu'une lampe soit disposée sous chaque semelle et qu'une lampe soit disposée au niveau des bords intérieurs de deux semelles.Advantageously, the heating means comprise three lamps of elongate shape, arranged parallel and so that a lamp is disposed under each sole and a lamp is disposed at the inner edges of two flanges.
Ces dispositions permettent une action optimale des moyens de chauffage.These provisions allow an optimal action of the heating means.
Selon une caractéristique de l'invention, les moyens de support des semelles comprennent un plateau présentant deux ailes formant un V.According to one characteristic of the invention, the sole support means comprise a plate having two wings forming a V.
De toute façon, l'invention sera bien comprise à l'aide de la description qui suit, en référence au dessin schématique annexé représentant, à titre d'exemple non limitatif, une forme d'exécution de cette semelle et d'un dispositif pour sa mise en forme. Figure 1 est une vue de dessous d'une semelle;In any case, the invention will be better understood from the description which follows, with reference to the appended schematic drawing showing, by way of non-limiting example, an embodiment of this sole and a device for its formatting. Figure 1 is a bottom view of a sole;
Figure 2 en est une coupe transversale suivant la ligne INI de la figure 1.Figure 2 is a cross section along the line INI of Figure 1.
Figure 3 est une représentation schématique du dispositif.Figure 3 is a schematic representation of the device.
Figure 4 est une vue schématique transversale du dispositif. La figure 1 représente une semelle 1 de chaussure. La semelle 1 est destinée à être insérée dans une chaussure. La semelle 1 comprend un support 3 de forme générale correspondant à la surface du fond d'une chaussure.Figure 4 is a schematic transverse view of the device. Figure 1 shows a shoe sole 1. The sole 1 is intended to be inserted into a shoe. The sole 1 comprises a support 3 of general shape corresponding to the bottom surface of a shoe.
Comme représenté sur la figure 2, la semelle 1 comporte une première couche 5 et une deuxième couche 6 de matériaux thermoformables. La première couche 5 est disposée sur le support 3.As shown in Figure 2, the sole 1 comprises a first layer 5 and a second layer 6 of thermoformable materials. The first layer 5 is disposed on the support 3.
La première couche 5 s'étend sensiblement dans des zones du support 3 destinées à porter les portions arrière et centrale d'un pied et sensiblement jusqu'aux bords latéraux 7 du support 3. La deuxième couche 6 est disposée sur la première couche 5 dans la partie arrière du support 3. La deuxième couche 6 est disposée en retrait de la première couche 5 afin de laisser libre une zone de la première couche 5 comprenant les bords latéraux 7, le bord arrière 8, la zone centrale 9 et le centre du talon 10 du support 3.The first layer 5 extends substantially in areas of the support 3 intended to carry the rear and central portions of a foot and substantially to the side edges 7 of the support 3. The second layer 6 is disposed on the first layer 5 in the rear part of the support 3. The second layer 6 is set back from the first layer 5 to leave free a zone of the first layer 5 comprising the lateral edges 7, the rear edge 8, the central zone 9 and the center of the heel 10 of the support 3.
La première et la deuxième couches 5, 6 sont réalisées à l'aide de matériaux thermoformables, constituées par des résines composites. La résine composite de la première couche 5 est un polyester. La température de thermoformage de la résine polyester est de 65°C. La résine composite de la deuxième couche 6 est constituée par du polycaprolactone, du polyamide et une grille polyester. La température de thermoformage de la deuxième couche 6 est comprise entre 75 et 800C.The first and second layers 5, 6 are made using thermoformable materials, consisting of composite resins. The composite resin of the first layer 5 is a polyester. The thermoforming temperature of the polyester resin is 65 ° C. The composite resin of the second layer 6 consists of polycaprolactone, polyamide and a polyester grid. The thermoforming temperature of the second layer 6 is between 75 and 80 ° C.
Comme représenté sur la figure 3, un dispositif 15 est utilisé pour la mise en forme de la semelle 1.As shown in FIG. 3, a device 15 is used for shaping the sole 1.
Le dispositif 15 se présente sous la forme d'un caisson 16 de forme générale parallélépipédique comprenant une partie inférieure 17 et une partie supérieure 18. La partie inférieure 17 du caisson 16 délimite un volume sur le fond duquel sont disposées parallèlement trois lampes 20. Ces trois lampes sont disposées longitudinalement, l'une étant centrale et les deux autres symétriques de part et d'autre de la première. Ces trois lampes sont des lampes à halogène d'une puissance unitaire de 500 Watts, ce qui permet de fournir une puissance totale de 1500 Watts.The device 15 is in the form of a box 16 of generally parallelepipedal shape comprising a lower portion 17 and an upper portion 18. The lower portion 17 of the box 16 defines a volume on the bottom of which three lamps 20 are arranged in parallel. three lamps are arranged longitudinally, one being central and the other two symmetrical on either side of the first. These three lamps are halogen lamps with a unit power of 500 Watts, which provides a total power of 1500 Watts.
Les parties inférieure 17 et supérieure 18 sont séparées par un plateau support 19 comportant deux ailes 21 , 22 formant, vu en coupe transversale, un V dont la pointe est tournée vers le bas et qui est située dans le plan médian longitudinal du caisson. Ces deux ailes 21 , 22 forment des surfaces de support pour deux semelles. Le plateau support comporte, dans sa partie centrale, une ouverture 26 permettant un chauffage préférentiel des zones des semelles situées en regard de l'ouverture. En avant de l'ouverture 26 et au niveau de la pointe du V, est ménagée une nervure 24 centrale et longitudinale tournée vers le haut. En arrière de l'ouverture 26 sont ménagées deux nervures 25, en forme d'arcs de cercles, comportant chacune un tronçon central et longitudinal raccordé à un tronçon transversal tourné vers l'extérieur. Ces nervures servent à assurer le positionnement de deux semelles sur les deux ailes 21 , 22 du plateau support.The lower 17 and upper 18 parts are separated by a support plate 19 having two wings 21, 22 forming, seen in cross section, a V whose tip is facing downwards and which is located in the longitudinal median plane of the box. These two wings 21, 22 form support surfaces for two flanges. The support plate has, in its central part, an opening 26 for preferential heating of the zones of the soles located opposite the opening. In front of the opening 26 and at the tip of the V, is formed a central rib 24 and longitudinal upwardly. Behind the opening 26 are formed two ribs 25, in the form of arcs of circles, each having a central and longitudinal section connected to a transverse section turned outwards. These ribs serve to ensure the positioning of two flanges on the two wings 21, 22 of the support plate.
La partie supérieure du caisson est équipée, au dessus du plateau support 19 et en arrière de l'ouverture 26, de deux palettes articulées 27, 28 destinées à servir à l'appui des zones postérieures de deux semelles disposées dans le dispositif. Chaque palette est associée à un contact électrique, non représenté, disposé sur le circuit d'alimentation des lampes et destiné à être fermé par la palette sous le poids d'une semelle reposant sur celle-ci. En pratique, les contacts associés aux deux palettes sont montés en série.The upper part of the box is equipped, above the support plate 19 and behind the opening 26, two articulated pallets 27, 28 intended to serve to support the posterior areas of two soles arranged in the device. Each pallet is associated with an electrical contact, not shown, disposed on the lamp supply circuit and intended to be closed by the pallet under the weight of a sole resting on it. In practice, the contacts associated with the two pallets are mounted in series.
La face supérieure du caisson est fermée par un capot de protection en verre 29, monté articulé le long de l'un de ses bords 30. Ce capot 29 est également associé à un contact électrique monté sur le circuit d'alimentation des lampes, afin de n'autoriser cette alimentation que lorsque le capot est fermé.The upper face of the box is closed by a glass protective cover 29, mounted hinged along one of its edges 30. This cover 29 is also associated with an electrical contact mounted on the lamp supply circuit, so that to allow this power only when the hood is closed.
La commande de l'alimentation électrique des lampes peut comporter un dispositif de temporisation permettant d'assurer un chauffage pendant une durée prédéterminée, fonction de la température de ramollissement de la première couche 5 et de la masse à ramollir. La durée de chauffage peut, par exemple, être de 10 secondes.The control of the power supply of the lamps may include a delay device for heating for a predetermined time, depending on the softening temperature of the first layer 5 and the mass to be softened. The heating time may, for example, be 10 seconds.
L'utilisation de ce dispositif est la suivante : Partant d'une paire de semelles conformées de façon standard en usine et adaptées à la taille des pieds d'un utilisateur, le capot 29 du dispositif est ouvert et les deux semelles sont positionnées sur leurs supports respectifs, 21 , 22 et sur les palettes 27,28. Les contacts associés à ces dernières sont actionnés en position de fermeture. Le capot 29 est alors refermé, et actionne en position de fermeture le contact qui lui est associé. Une impulsion sur un contacteur engage un cycle de chauffage d'une durée déterminée, assurant le ramollissement de la première couche 5 de matériau thermoplastique, mais non de la seconde couche 6 qui est située dans la zone arrière de stabilisation et de maintien du pied. Il est à noter que le positionnement des lampes et l'inclinaison des supports 21 , 22 du plateau 19 assurent un chauffage homogène dans les zones dont la forme doit être adaptée, qui est notamment la zone de voûte plantaire. Après ramollissement de la première couche 5, les semelles sont retirées du dispositif et sont positionnées soit dans les chaussures de l'utilisateur soit sur un support de moulage avant conformation par l'utilisateur des deux semelles à la forme de ses pieds, par appui des pieds sur les semelles qui sont dans un état partiellement malléable. Après refroidissement, les semelles conservent la forme qui leur a été donnée. Comme il va de soi, l'invention ne se limite pas aux seules formes d'exécution de cette semelle de chaussure et du dispositif permettant la mise en forme de cette semelle, décrites ci-dessus à titre d'exemple, mais elle embrasse au contraire toutes les variantes. The use of this device is as follows: Starting from a pair of soles shaped as standard in the factory and adapted to the size of the feet of a user, the cover 29 of the device is open and the two soles are positioned on their respective supports, 21, 22 and on the pallets 27,28. The contacts associated with the latter are actuated in the closed position. The cover 29 is then closed, and actuates in the closed position the contact associated with it. A pulse on a contactor initiates a heating cycle of a determined duration, ensuring the softening of the first layer 5 of thermoplastic material, but not of the second layer 6 which is located in the rear zone of stabilization and maintenance of the foot. It should be noted that the positioning of the lamps and the inclination of the supports 21, 22 of the plate 19 ensure a homogeneous heating in the areas whose shape must be adapted, which is in particular the arch area. After softening of the first layer 5, the soles are removed from the device and are positioned either in the shoes of the user or on a molding support before conformation by the user of the two soles to the shape of his feet, by support of the feet on soles that are in a partially malleable state. After cooling, the soles retain the shape that has been given to them. It goes without saying that the invention is not limited to only the embodiments of this sole shoe and the device for shaping the sole, described above as an example, but it embraces the otherwise all variants.

Claims

REVENDICATIONS
1. Semelle (1 , 2) de chaussure, en particulier pour la pratique d'un sport, comprenant un support (3) de forme générale correspondant à la surface d'au moins une partie du fond de la chaussure et comprenant au moins une première couche en matériau thermoformable, caractérisée en ce qu'elle comprend :1. Sole (1, 2) of a shoe, in particular for practicing a sport, comprising a support (3) of general shape corresponding to the surface of at least a portion of the bottom of the shoe and comprising at least one first layer of thermoformable material, characterized in that it comprises:
- au moins une deuxième couche réalisée en matériau thermoformable, la deuxième couche (6) recouvrant partiellement la première couche (5) afin de laisser au moins une zone libre (7, 8, 9, 10) au niveau de la première couche (5),at least one second layer made of thermoformable material, the second layer partially covering the first layer (5) in order to leave at least one free zone (7, 8, 9, 10) at the level of the first layer (5); )
- le matériau constitutif de la première couche (5) présentant une température de thermoformage inférieure à la température de thermoformage du matériau constitutif de la deuxième couche (6), et en ce que la première couche (5) s'étend au moins dans des zones de la semelle (1 , 2) destinées à porter les portions arrière et centrale d'un pied et sensiblement jusqu'aux bords latéraux (7) de la semelle (1 , 2) tandis que la deuxième couche (6) est disposée dans la zone arrière de la semelle (1 , 2).the constituent material of the first layer (5) having a thermoforming temperature lower than the thermoforming temperature of the constituent material of the second layer (6), and in that the first layer (5) extends at least in areas of the sole (1, 2) for carrying the rear and central portions of a foot and substantially to the side edges (7) of the sole (1, 2) while the second layer (6) is disposed in the rear area of the sole (1, 2).
2. Semelle (1 , 2) de chaussure selon la revendication 1 , caractérisée en ce que dans la zone arrière de la semelle (1 , 2), la deuxième couche (6) est disposée en retrait de la première couche (5) afin de laisser libre au moins une zone latérale.Shoe sole (1, 2) according to claim 1, characterized in that in the rear region of the sole (1, 2), the second layer (6) is set back from the first layer (5) so as to to leave free at least one lateral area.
3. Semelle (1 , 2) de chaussure selon la revendication 1 ou 2, caractérisée en ce que la deuxième couche (6) est située au-dessus de la première couche (5).3. sole (1, 2) shoe according to claim 1 or 2, characterized in that the second layer (6) is located above the first layer (5).
4. Semelle (1 , 2) de chaussure selon l'une quelconque des revendications 1 à 3, caractérisée en ce que la température de thermoformage du matériau constitutif de la première couche (5) est comprise entre 60 et 700C. 4. sole (1, 2) shoe according to any one of claims 1 to 3, characterized in that the thermoforming temperature of the material constituting the first layer (5) is between 60 and 70 0 C.
5. Semelle (1 , 2) de chaussure selon l'une quelconque des revendications 1 à 4, caractérisée en ce que la température de thermoformage du matériau constitutif de la deuxième couche (6) est comprise entre 75 et 800C.5. Sole (1, 2) shoe according to any one of claims 1 to 4, characterized in that the thermoforming temperature of the material constituting the second layer (6) is between 75 and 80 0 C.
6. Semelle (1 , 2) de chaussure selon l'une quelconque des revendications 1 à 5, caractérisée en ce que la première couche (5) est constituée par une résine composite polyester.6. sole (1, 2) shoe according to any one of claims 1 to 5, characterized in that the first layer (5) is constituted by a polyester composite resin.
7. Semelle (1 , 2) de chaussure selon l'une quelconque des revendications 1 à 6, caractérisée en ce que la deuxième couche (6) est constituée par une résine composite comportant du polycaprolactone, du polyamide et une grille polyester.7. sole (1, 2) shoe according to any one of claims 1 to 6, characterized in that the second layer (6) is constituted by a composite resin comprising polycaprolactone, polyamide and a polyester grid.
8. Dispositif (15) de mise en forme d'une semelle (1 , 2) selon l'une quelconque des revendications 1 à 7, caractérisé en ce qu'il comprend :8. Device (15) for shaping a sole (1, 2) according to any one of claims 1 to 7, characterized in that it comprises:
- un caisson (16) présentant une partie inférieure (17) et une partie supérieure (18),- a box (16) having a lower portion (17) and an upper portion (18),
- des moyens de chauffage (20) situés dans la partie inférieure (17) du caisson et agencés pour chauffer la semelle (1 , 2) à une température correspondant à la température de thermoformage de la première couche (5),- Heating means (20) located in the lower part (17) of the box and arranged to heat the sole (1, 2) at a temperature corresponding to the thermoforming temperature of the first layer (5),
- des moyens de support (19, 21 , 22) d'au moins une semelle (1 , 2) disposés au-dessus des moyens de chauffage (20), ces moyens de support comportant au moins une ouverture (26) disposée en regard d'au moins la zone libre (7, 9) de la première couche (5) dont le ramollissement est à effectuer.- support means (19, 21, 22) of at least one sole (1, 2) disposed above the heating means (20), these support means comprising at least one opening (26) arranged opposite at least the free zone (7, 9) of the first layer (5) whose softening is to be performed.
9. Dispositif (15) selon la revendication 8, caractérisé en ce qu'il comporte des moyens de détection (27, 28) conçus pour détecter la présence d'une semelle (1 , 2) disposée sur les moyens de support (19, 21 , 22) d'au moins une semelle (1 , 2) et pour permettre une activation des moyens de chauffage (20) lorsque la présence d'une semelle (1 , 2) est détectée.9. Device (15) according to claim 8, characterized in that it comprises detection means (27, 28) designed to detect the presence of a sole (1, 2) disposed on the support means (19, 21, 22) of at least one sole (1, 2) and to enable activation of the heating means (20) when the presence of a sole (1, 2) is detected.
10. Dispositif (15) selon la revendication 9, caractérisé en ce que les moyens de détection (27, 28) sont constitués par au moins une palette (27,10. Device (15) according to claim 9, characterized in that the detection means (27, 28) consist of at least one pallet (27,
28) articulée destinée au support de la partie arrière de la semelle actionnant un contact lorsqu'une semelle (1 , 2) est disposée sur la palette articulée (27, 28).28) articulated for supporting the rear portion of the actuating soleplate contact when a sole (1, 2) is disposed on the hinged pallet (27, 28).
11. Dispositif (15) selon l'une des revendications 9 et 10 destiné au chauffage de deux semelles (1 , 2), caractérisé en ce que les moyens de détection (27, 28) comprennent deux palettes (27, 28), une pour chaque semelle (1 , 2).11. Device (15) according to one of claims 9 and 10 for heating two flanges (1, 2), characterized in that the detection means (27, 28) comprise two pallets (27, 28), a for each sole (1, 2).
12. Dispositif (15) selon l'une quelconque des revendications 8 à 11 , caractérisé en ce qu'il comporte des moyens de protection, constitués par un capot (29), monté articulés sur le caisson (16) et mobile entre une position d'ouverture et une position de fermeture, la position de fermeture permettant l'activation des moyens de chauffage (20).12. Device (15) according to any one of claims 8 to 11, characterized in that it comprises means of protection, consisting of a cover (29) mounted articulated on the housing (16) and movable between a position opening and a closed position, the closed position for the activation of the heating means (20).
13. Dispositif (15) selon l'une quelconque des revendications 8 à13. Device (15) according to any one of claims 8 to
12, caractérisé en ce que les moyens de chauffage (20) comprennent au moins une lampe (20).12, characterized in that the heating means (20) comprise at least one lamp (20).
14. Dispositif (15) selon la revendication 13 destiné au chauffage de deux semelles (1 , 2), caractérisé en ce que les moyens de chauffage (20) comprennent trois lampes (20) de forme allongée, disposées parallèlement et de manière à ce qu'une lampe (20) soit disposée sous chaque semelle (1 , 2) et une lampe (20) soit disposée au niveau des bords intérieurs de deux semelles14. Device (15) according to claim 13 for heating two flanges (1, 2), characterized in that the heating means (20) comprise three lamps (20) of elongated shape, arranged in parallel and so that that a lamp (20) is arranged under each sole (1, 2) and a lamp (20) is arranged at the inner edges of two insoles
(1 . 2).(1, 2).
15. Dispositif (15) selon l'une des revendications 8 à 14 destiné au chauffage de deux semelles (1 , 2), caractérisé en ce que les moyens de support (19, 21 , 22) comprennent un plateau (19) présentant deux ailes (21 , 22) formant un V. 15. Device (15) according to one of claims 8 to 14 for heating two flanges (1, 2), characterized in that the support means (19, 21, 22) comprises a plate (19) having two wings (21, 22) forming a V.
PCT/FR2008/051550 2007-09-10 2008-09-01 Shoe sole and device formethod for forming said sole WO2009044023A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US12/676,920 US20110016753A1 (en) 2007-09-10 2008-09-01 Shoe sole and device for method for forming said sole
CA2699520A CA2699520A1 (en) 2007-09-10 2008-09-01 Shoe sole and device formethod for forming said sole
EP08834983A EP2185019A1 (en) 2007-09-10 2008-09-01 Shoe sole and device for method for forming said sole
JP2010524547A JP2010538722A (en) 2007-09-10 2008-09-01 Shoe sole and apparatus for molding such a sole

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR07/06321 2007-09-10
FR0706321A FR2920646B1 (en) 2007-09-10 2007-09-10 SHOE SOLE, METHOD FOR FORMING SUCH AN SOLE AND DEVICE FOR PERFORMING SUCH A METHOD

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WO2009044023A1 true WO2009044023A1 (en) 2009-04-09

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EP (1) EP2185019A1 (en)
JP (1) JP2010538722A (en)
CA (1) CA2699520A1 (en)
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WO (1) WO2009044023A1 (en)

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NZ604514A (en) * 2010-06-17 2014-06-27 Dashamerica Inc D/B/A Pearl Izumi Usa Inc Dual rigidity shoe sole
CN109852018A (en) * 2019-01-18 2019-06-07 广州矫步鞋业有限公司 A kind of production method and products thereof of low temperature moulded fiber composite material
DE102020206397A1 (en) 2020-05-22 2021-11-25 Bauerfeind Ag Insole

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EP2185019A1 (en) 2010-05-19
FR2920646B1 (en) 2010-06-04
US20110016753A1 (en) 2011-01-27
CA2699520A1 (en) 2009-04-09
FR2920646A1 (en) 2009-03-13
JP2010538722A (en) 2010-12-16

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