EP2394523A1 - Shoe with improved walking comfort - Google Patents

Shoe with improved walking comfort Download PDF

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Publication number
EP2394523A1
EP2394523A1 EP11004632A EP11004632A EP2394523A1 EP 2394523 A1 EP2394523 A1 EP 2394523A1 EP 11004632 A EP11004632 A EP 11004632A EP 11004632 A EP11004632 A EP 11004632A EP 2394523 A1 EP2394523 A1 EP 2394523A1
Authority
EP
European Patent Office
Prior art keywords
shoe
membrane
textile layer
foot
intermediate portion
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.)
Withdrawn
Application number
EP11004632A
Other languages
German (de)
French (fr)
Inventor
René Borel
Jean-Noel Thevenoud
Warren Bosomworth
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Salomon SAS
Original Assignee
Salomon SAS
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 Salomon SAS filed Critical Salomon SAS
Publication of EP2394523A1 publication Critical patent/EP2394523A1/en
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/0205—Uppers; Boot legs characterised by the material
    • A43B23/0235—Different layers of different material
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B1/00—Footwear characterised by the material
    • A43B1/02—Footwear characterised by the material made of fibres or fabrics made therefrom
    • A43B1/04—Footwear characterised by the material made of fibres or fabrics made therefrom braided, knotted, knitted or crocheted
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/0245—Uppers; Boot legs characterised by the constructive form
    • A43B23/0255—Uppers; Boot legs characterised by the constructive form assembled by gluing or thermo bonding
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/0245—Uppers; Boot legs characterised by the constructive form
    • A43B23/0265—Uppers; Boot legs characterised by the constructive form having different properties in different directions
    • A43B23/027—Uppers; Boot legs characterised by the constructive form having different properties in different directions with a part of the upper particularly flexible, e.g. permitting articulation or torsion

Definitions

  • the invention relates to shoes, especially those of walking or sports.
  • Such shoes can be used in areas such as walking, running on flat terrain or in the mountains, running shoes for urban use, practicing indoor sports such as squash or volleyball, practicing team sports such as football or handball.
  • a shoe For the intended uses, a shoe must in particular have a certain flexibility. This means that the shoe must be able to marry certain deformations of the foot. This is for example to allow a smooth running during walking. The foot undergoes in particular significant deformations during its course, when the heel moves away from the ground, or during a flexion at the metatarsal level.
  • a shoe must also maintain the foot, that is to say, avoid inadvertent movements of the foot relative to the sole or the rod. This for good driving accuracy, and to avoid the risk of trauma. As a corollary, the shoe must sufficiently tighten the foot, while maintaining satisfactory comfort.
  • a shoe must also have good damping capacity, which aims to reduce or prevent fatigue or trauma that may result from support or impact on the ground, or various solicitations.
  • a shoe comprises a footwear element, which has a lateral flank and a medial flank delimiting a rear opening for insertion of the foot, as well as a front opening disposed at the instep and extending towards the foot. metatarsal of the user.
  • the front opening is sometimes closed by a tab.
  • a clamping device is provided for reversibly clamping the rod. This device may comprise one or more yaw strands that run from one side to the other at the front opening.
  • the footwear element also has a upper, which joins the lateral and medial sides between the front opening and a front end of the shoe.
  • the upper covers the toes of the user.
  • the known shoes generally offer a compromise in the rigidity of the footwear element, in order to reconcile the need to ensure optimal support of the foot and the need not to bruise the foot during its volume changes.
  • the lateral flank, the upper and the medial side of a shoe are structured to cover the foot homogeneously. As a result the shoe holds the foot properly. This means that the transmission of driving impulses or sensory information is done precisely.
  • the shoe includes an elasticated upper.
  • This shoe adapts easily to the foot, and provides increased comfort to it.
  • the maintenance of the foot is insufficient in the sense that the transmission of information, related to the use of the shoe, is impaired or insufficient.
  • the general object of the invention is to improve the shoes according to the prior art.
  • one of the aims of the invention is to reconcile the two antinomic characteristics that are the maintenance of the foot or the precision of information transmission between the foot and the shoe, with the comfort of the foot in the shoe.
  • the comfort must be considered in all phases of use, that is to say whatever the intensity of the pulses, and regardless of the duration of use. This is for example to take into account the natural deformations of the foot during unwinding or support in flexion, in combination with the general variation of its volume during an intense or prolonged use.
  • the invention proposes a shoe comprising an outer sole and a upper, the boot extending in a longitudinal direction from a rear end to a front end, in a direction transverse between a lateral edge and a medial edge. and in height between the outer sole and a top, the upper comprising a vamp.
  • the shoe according to the invention is characterized in that the rod comprises at least one part structured to deform elastically in a reversible manner and so that the deformations are controlled. This improves the maintenance and comfort of the foot.
  • the upper comprises a rear part intended to cover the metatarsus of the user's foot, a front part intended to cover the toes of the user's foot, and an intermediate part intended to covering the junction between the toes and the metatarsus of the user's foot, the intermediate portion connecting the rear portion to the front portion, and extending from the lateral edge to the medial edge, the intermediate portion being structured to deform elastically so as to reversible and so that the deformations are controlled.
  • the intermediate portion is a cross section of the rod which has superior elasticity to the rear and front parts.
  • the intermediate portion exerts, between the rear and front parts, biasing efforts proportional to the stresses it undergoes, accompanying the deformations of the upper.
  • the intermediate part by its elasticity, avoids the appearance of creases or hard spots between the rear and front parts, which avoids bruising the foot.
  • the intermediate part exerts an elastic constriction on the foot, transversely, at the joints between the toes and the metatarsus.
  • this cross section of the foot can be deformed by being held in a constant manner, that is to say without temporary excess tightening and without temporary relaxation. This reduces fatigue, especially in prolonged use, and also reduces or eliminates any risk of trauma.
  • the intermediate part forms a regular connection between the rear and front parts, as opposed to a connection which, if it had not been elastic, would have formed folds. This facilitates relative movements between the rear and front parts, in particular during the flexion of the shoe, bending which occurs for example during a movement of unwinding of the foot.
  • the shoe of the invention provides both good footing and comfort.
  • the maintenance between the upper and the foot remains in a range of values close to each other, in terms of intensity, during the various phases of use of the shoe, from which a constant comfort.
  • the figure 1 shows a first embodiment of the invention, which applies to a shoe 1 for the practice of walking or running.
  • the shoe comprises an outer sole 200 and a shaft 300.
  • the shoe 1 extends in a longitudinal direction L from a rear end 2 to a front end 3, in a transverse direction W between a lateral edge 4 and a medial edge 5, and in height between the outer sole 200 and a top 6.
  • the upper includes a vamp 305, which is intended to cover the foot from the instep to the toes.
  • the upper 305 includes a rear portion 340 to cover the metatarsus of the foot, a front portion 310 to cover the toes of the foot and an intermediate portion 320 to cover the junction between the toes and metatarsal foot.
  • the intermediate portion 320 connects the rear portion 340 and the front portion 310 of the rod.
  • the intermediate portion 320 comprises a textile layer 323, more or less extensible, obtained for example by the knitting technique.
  • the intermediate portion also comprises an elastic membrane 321, provided to extend in a reversible manner. The textile layer and the elastic membrane are superimposed and extend here continuously from the lateral edge 4 to the medial edge 5 of the shoe.
  • the layer and the membrane extend from one edge to the other at the level of the outer sole 200, that is to say along 100% of the intermediate portion 320 in the transverse direction W.
  • the layer and the membrane can extend between 80 and 100% of the intermediate portion. It goes without saying that the intermediate portion has an elasticity greater than the elasticity of the front portion and the rear portion of the rod. This amounts to saying that the intermediate part elongates more for a solicitation of the same intensity.
  • the intermediate portion is oriented transversely, that is to say in the direction W perpendicular to the longitudinal direction L of the shoe.
  • the intermediate portion is oriented at an angle of between 90 ° and 120 ° relative to the longitudinal direction L.
  • the intermediate portion 320 is arranged so that its elasticity is controlled. More precisely the elasticity is damped and therefore controlled, in order to avoid untimely dimensional variations.
  • the textile layer 323 and the elastic membrane 321 are secured to one another, for example by a bonding means.
  • Such a shoe makes it possible to ensure continuous contact at the junction between the toes and the metatarsus, this junction having a very large variation of its section during the unwinding of the foot, as can be seen in FIG. figure 8 .
  • This contact ensures a holding of the foot without harming the comfort of the user, and this for all positions unwinding of the foot.
  • the holding of the foot is also optimized by the lower elasticity of the front 310 and rear 340, in areas of the foot undergoing a smaller deformation section.
  • the figure 1 is a perspective view of an embodiment of the shoe 1 according to the invention in the rest position.
  • the figures 2 and 3 are respectively top and side views of the shoe 1 of the figure 1 in this same rest position.
  • the boot 1 extends in length in the longitudinal direction L between the rear end or heel 2 and the front end or tip 3.
  • the shoe 1 extends in width in the transverse direction W between the lateral side 4 and the medial side 5.
  • the shoe 1 includes an outer sole 200 and a rod 300 attached to the sole 200.
  • the sole 200 is intended to be interposed between the floor and the foot of the user.
  • the rod 300 is intended to cover the foot of the user and to ensure its contact against the sole 200.
  • the shaft 300 comprises a vamp 305, which has the front portion 310 for covering the toes of the foot.
  • the upper 305 also has the back portion 340 for covering the metatarsus and the toe.
  • An opening 341 is formed in the rear portion 340 to allow the introduction of the foot inside the shoe 1.
  • the upper 305 also has the intermediate portion 320 intended to cover the junction between the toes and the metatarsus of the foot .
  • the intermediate portion 320 connects the rear portion 340 and the front portion 310 of the rod 300, that is to say the upper 305.
  • the sole 200 is delimited transversely by the medial edge 5 and the lateral edge 4.
  • the rear portion 340 has a medial side 343 extending from the medial edge of the sole 200, and a lateral flank 342 extending from the lateral edge of the 200.
  • the side flank 342 and the medial flank 343 are joined to the rear of the opening 341.
  • the boot 1 is intended to facilitate walking or running and thus has a sole 200 having sufficient flexibility to be able to be flexed. around a transverse axis of the shoe.
  • the sole assembly 200 thus allows the foot to unwind by supporting the point on the ground and by detaching the heel from the ground.
  • the rod 300 has an inner envelope comprising a textile liner layer 360 and an outer envelope.
  • the liner 360 is juxtaposed to the outer envelope, without being fixed. A slight relative sliding between the lining 360 and the outer casing is therefore possible.
  • it may be lining 360 to the envelope, by any means such as a seam, a collage, or other.
  • the outer envelope comprises the textile layer 323 and the elastic membrane 321 in the intermediate portion 320.
  • the textile layer 323 is made for example by the knitting technique.
  • the textile layer 323 comprises yarn strands that form a network.
  • the layer is able to deform, for example in extension. In doing so the strands rub on each other, which creates a damping effect.
  • the strands of yarn are made of any suitable synthetic material, such as polyethylene, or the like.
  • the elastic membrane 321 is similar to a sheet made of a reversibly deformable material, a bit like a spring.
  • the membrane 321 is for example made of polyurethane, rubber, or any equivalent material.
  • the textile layer 323 and the elastic membrane 321 are superimposed. More specifically, they 323, 321 are assembled with each other, for example by hot gluing. Of course, other means could be suitable, including cold bonding. As a result, the textile layer 323 and the elastic membrane 321 cooperate with each other to impart to the intermediate portion 320 an ability to elastically deform in a controlled manner.
  • the membrane 321 acts as a return spring, in the sense that it seeks to return to its original shape when it is stressed in extension.
  • the textile layer 323 accompanies the elastic deformations of the membrane by damping them, by the friction of the son. It is noted that the membrane 321 covers the textile layer 323, in the sense that it 321 is on the outer surface of the rod, the textile layer 323 is recessed further towards the inside of the rod. It could be said that the membrane covers the textile layer.
  • the intermediate portion 320 thus configured has an elasticity greater than the elasticity of the front portion 310 and greater than the elasticity of the rear portion 340.
  • the intermediate portion 320 forms an elastic arch above the junction between the toes and the metatarsals.
  • the intermediate portion 320 thus marries the foot section during its course, despite the very large variations in time of this section along the transverse and vertical directions.
  • the user thus has the sensation of an uninterrupted contact with the intermediate portion 320.
  • the pressure of the intermediate portion 320 on the foot gradually changes during the unwinding of the foot due to the elasticity, so that the comfort of the shoe 1 is particularly appreciable.
  • the textile layer 323 is able to undergo significant deformations to match the relief of the foot, particularly because of its texture.
  • the elastic membrane 321 when it is moved away from its rest position, makes it possible to return the intermediate portion 320, and in particular the textile layer 323, to its rest position.
  • the membrane 321 also makes it possible to limit the folds of the intermediate portion 320 that can bruise the foot.
  • the intermediate portion 320 further allows the shoe 1 to present a better fit for users suffering from bone deformities at the big toe.
  • the membrane 321 is fixed on the textile layer 323, for example by heat-sealing.
  • the membrane 321 advantageously has orifices 322 revealing the textile layer 323.
  • These orifices 322 are sized to adjust, that is to say to control, the elasticity of the intermediate portion 320. Indeed, an increase in the number of orifices, or an increase in their size, results in a reduction of the active surface of the elastic membrane 321. In other words an increase in the number of orifices reduces the resilient return capacity of the membrane 321.
  • By varying the size of the orifices it is possible to control and adjust the elasticity of the textile layer assembly 323 / elastic membrane 321. In all cases the intermediate portion 320 holds the foot in all circumstances.
  • the textile layer 323 is advantageously permeable to air.
  • the orifices 322 particularly facilitate the evacuation of the sweat present inside the shoe 1.
  • the orifices 322 also facilitating the evacuation of air from the shoe during the unwinding of the foot, especially in the presence of sweat in the shoe.
  • the orifices 322 have a hexagonal shape.
  • other shapes might be suitable, such as circles, oblongs, triangles, squares, rectangles, diamonds, or other.
  • the intermediate portion 320 advantageously has a width greater than 5 mm over its entire length between the medial edge and the lateral edge of the sole 200.
  • the width of the intermediate portion 320 is measured along the longitudinal direction L of the shoe, while its length is measured in the transverse direction W. It is noted in passing that the width is variable, the intermediate portion 320 being narrower at the top 6.
  • the intermediate portion 320 is fixed to the front portion 310 and the rear portion 340 respectively by seams 361 and 362.
  • the front portion 310 has a textile layer 316.
  • the rear portion 340 has a textile layer 345.
  • the membrane 321 covers the seams 361 and 362 of the textile layers 316 and 345.
  • the membrane 321 thus advantageously makes it possible to hide the seams 361 and 362 and to protect them from wear.
  • the textile layers 316 and 345 are structured so that their extension capacity is less than the extension capacity of the textile layer 323 of the intermediate portion 320.
  • the textile layer 316 of the front portion 310 has one or more areas 312 not covered by the membrane 321.
  • An area 312 extends in particular in the middle portion of the front portion 310. During the unfolding of the user's foot , this zone 312 can be folded to replace the intermediate portion 320, the toes being less sensitive to a possible loss of contact with the rod 300.
  • the membrane 321 advantageously has portions extending continuously from a front end to a rear end of the textile layer 323, in the longitudinal direction L of the shoe. These portions make it possible to exert an axial return force on the textile layer 323. These portions thus delimit the orifices 322.
  • the membrane 321 advantageously has portions 311 and 313 forming a belt that extends downwardly from the front portion 310.
  • the formed belt thus ensures a seal of the lower zone of the front portion 310, the most likely to be in contact with water.
  • the portions 311 and 313 may, for example, extend continuously from the edges of the sole assembly 200.
  • the front portion advantageously comprises a relatively rigid tip 314, providing protection for the foot and the textile layer 316.
  • the sole assembly 200 also has a tongue 204 coming to cover the front end of the end piece 314, to protect it against abrasion.
  • the membrane 321 advantageously comprises a bridge 315 axially traversing the front portion 310.
  • This bridge 315 may be provided to exert a return force to a position of the shoe 1 corresponding to a slight unwinding of the foot.
  • the bridge 315 may for this purpose have an end secured to the hull 314.
  • the bridge 315 is not mandatory and the shoe may be devoid of it.
  • the membrane 321 may be made in the form of a film having a thickness of between 0.1 and 0.8 mm. It is possible, for example, to produce such a film in polyurethane, in polyvinyl chloride, in silicone, or other.
  • the textile layer 323 has a thickness between 0.5 and 3 mm, knowing that values ranging from 0.5 to 1.5 mm have given good results.
  • the constituent fibers of the layer 323 are for example made of synthetic material, such as polyurethane, polyethylene, nylon or any equivalent.
  • the fibers of the layer 323 are woven so as to allow it to deform, especially in extension; it may be for example to knit the fibers. It follows that the layer 323 is similar to a knit.
  • the intermediate portion 320 extends or extends at least 1.5 times more than the front portion 310 or the rear portion 340. provides for example that the intermediate portion 320 extends 2 to 4 times more than the front portion 310 and rear 340.
  • the elasticity of the intermediate portion 320 is essentially defined by the materials and the geometry of the membrane 321 and the textile layer 323. Note that in the intermediate portion 320, the liner 360 is juxtaposed to the outer casing without being there. subject. As a result, the liner 360 does not impede the elasticity of the intermediate portion 320.
  • the rear portion 340 has a front opening 370, which extends the boot opening 341 forwards, between the lateral flank 342 and the medial side 343.
  • the opening before 370 is delimited forward by the intermediate portion 320.
  • a separation could be provided between the front opening 370 and the intermediate portion 320.
  • the opening 370 is closed by a tongue 500 fixed by its end. 371 lower to the rod 300.
  • the tongue 500 is not mandatory, and can be provided a shoe without tab.
  • a reversible clamping means of the rod 300 comprises for example a lacing device 400, disposed vertically above the opening.
  • the lacing device 400 comprises, in a manner known per se, a lace 402 passing through eyelets and loops 401 formed on the edge of the sidewalls 342 and 343. It is also possible not to equip the shoe 1 with a lacing device 400. case, the rear portion 340 is continuous from the lateral flank 342 to the medial side 343.
  • the textile layer 345 of the rear portion 340 is preferably coated with a frame 344 for example of synthetic material.
  • the reinforcement comprises subdivisions of plastic material, or is integrally made of plastic material.
  • the armature 344 is here in one piece, but it can alternatively be provided in several subdivisions
  • the armature 344 stiffens the rear portion 340. It 344 is for example fixed by gluing, or by any equivalent means, to the textile layer 345.
  • the figure 5 is a cross-sectional view of the shoe 1 at the intermediate portion 320.
  • the rod 300 is fixed to an internal sole 203 by any means to form a footwear element.
  • the rod 300 is secured to the sole 203 by seams 363, preferably according to the Stroble technique.
  • the footwear element is secured to the outer sole by gluing.
  • it may alternatively be provided to associate the rod 300 to the internal sole 203 by gluing, or to provide interlocking means.
  • the internal sole 203 may also include in addition a sockliner not shown.
  • the footwear is attached to the outer sole by gluing, using a layer of glue.
  • the illustrated outer sole comprises several layers.
  • the outer sole comprises a wear layer 201 and a cushioning layer 202.
  • the wear layer 201 is provided to come into contact with the ground in order to optimize the adhesion of the boot 1 and to limit its wear.
  • the wear layer 201 may comprise rubber or any material resistant to abrasion.
  • the damping layer 202 comprises a highly deformable material for absorbing shocks upon contact of the sole 200 with the ground, such as an ethyl vinyl acetate (EVA) foam or other suitable material.
  • EVA ethyl vinyl acetate
  • the medial edge and the lateral edge of the sole 202 have a lip 205 forming a junction with the rod 300.
  • the lip 205 makes it possible to increase the area of contact with the rod 300, which in particular increases the surface area. useful for securing the footwear element to the outer sole and the effective shock absorbing surface.
  • the intermediate portion comprises two thicknesses, namely the textile layer 323 and the elastic membrane 321, or three if the lining 360 is counted, it can be provided even more, such as four or more.
  • the part with controlled elasticity can be provided in other areas of the shoe, such as for example on one side or medial side of the upper, on a portion of the upper stem, without it being possible for so much of the 'invention.

Abstract

The shoe (1) has an upper (300) comprising an intermediate part (320) deformed elastically and reversibly to control deformations of the upper, where the shoe is extended along a longitudinal direction (L) from a rear end to a front end, along a transverse direction between a lateral side and a medial side, and in height between an outer sole assembly (200) and a top portion. The intermediate part includes a textile layer and an elastic membrane (321).

Description

L'invention concerne les chaussures, notamment celles de marche ou de sport. De telles chaussures peuvent être utilisées dans des domaines tels que la marche, la course sur terrain plat ou en montagne, des chaussures de sport pour un usage urbain, la pratique de sports d'intérieur tels que le squash ou le volley ball, la pratique de sports d'équipe tels que le football ou le handball.The invention relates to shoes, especially those of walking or sports. Such shoes can be used in areas such as walking, running on flat terrain or in the mountains, running shoes for urban use, practicing indoor sports such as squash or volleyball, practicing team sports such as football or handball.

Pour les utilisations envisagées, une chaussure doit notamment présenter une certaine souplesse. Cela signifie que la chaussure doit être apte à épouser certaines déformations du pied. Il s'agit par exemple de permettre un bon déroulement du pied pendant la marche. Le pied subit notamment d'importantes déformations lors de son déroulement, lorsque le talon s'éloigne du sol, ou lors d'une flexion au niveau du métatarse.For the intended uses, a shoe must in particular have a certain flexibility. This means that the shoe must be able to marry certain deformations of the foot. This is for example to allow a smooth running during walking. The foot undergoes in particular significant deformations during its course, when the heel moves away from the ground, or during a flexion at the metatarsal level.

Une chaussure doit également maintenir le pied, c'est-à-dire éviter les mouvements intempestifs du pied par rapport au semelage ou à la tige. Cela pour une bonne précision de conduite, et pour éviter les risques de traumatismes. Par corollaire, la chaussure doit suffisamment serrer le pied, tout en préservant un confort satisfaisant.A shoe must also maintain the foot, that is to say, avoid inadvertent movements of the foot relative to the sole or the rod. This for good driving accuracy, and to avoid the risk of trauma. As a corollary, the shoe must sufficiently tighten the foot, while maintaining satisfactory comfort.

Une chaussure doit aussi présenter une bonne capacité d'amortissement, lequel a vocation à réduire, voire empêcher, les fatigues ou les traumatismes qui pourraient résulter d'appuis ou d'impacts sur le sol, ou de sollicitations diverses.A shoe must also have good damping capacity, which aims to reduce or prevent fatigue or trauma that may result from support or impact on the ground, or various solicitations.

De manière connue une chaussure comprend un élément chaussant, lequel présente un flanc latéral et un flanc médial délimitant une ouverture arrière d'introduction du pied, ainsi qu'une ouverture avant disposée à hauteur du cou-de-pied et s'étendant vers le métatarse de l'utilisateur. L'ouverture avant est parfois obturée par une languette. Un dispositif de serrage est prévu pour serrer la tige de manière réversible. Ce dispositif peut comprendre un ou plusieurs brins de lacet qui cheminent d'un flanc à l'autre, au niveau de l'ouverture avant.In a known manner, a shoe comprises a footwear element, which has a lateral flank and a medial flank delimiting a rear opening for insertion of the foot, as well as a front opening disposed at the instep and extending towards the foot. metatarsal of the user. The front opening is sometimes closed by a tab. A clamping device is provided for reversibly clamping the rod. This device may comprise one or more yaw strands that run from one side to the other at the front opening.

L'élément chaussant présente également une empeigne, qui joint les flancs latéral et médial entre l'ouverture avant et une extrémité avant de la chaussure. Bien entendu l'empeigne couvre les orteils de l'utilisateur.The footwear element also has a upper, which joins the lateral and medial sides between the front opening and a front end of the shoe. Of course the upper covers the toes of the user.

En pratique, le déroulement du pied lors de la marche ou de la course induit des déformations importantes de la morphologie du pied. Dans de nombreuses régions, comme celle du métatarse, une section transversale du pied voit simultanément sa hauteur se réduire et sa largeur augmenter, et vice versa, au cours d'un cycle de marche. A ce phénomène s'en ajoute un autre, à savoir celui de l'augmentation générale du volume du pied lors d'un exercice intense ou prolongé. C'est le cas par exemple lors de la pratique de la course à pied, sur de longues distances ou pendant une période prolongée. Cette pratique entraine à la fois de la fatigue et une augmentation générale du volume du pied, phénomène qui s'ajoute à celui de variation de section transversale évoqué avant.In practice, the unwinding of the foot during walking or running induces significant deformations of the morphology of the foot. In many areas, such as that of the metatarsal, a cross section of the foot simultaneously sees its height reduce and its width increase, and vice versa, during a walking cycle. To this phenomenon is added another, namely that of the general increase of the volume of the foot during an intense or prolonged exercise. This is the case for example when practicing running, over long distances or for an extended period. This practice leads to both fatigue and a general increase in the volume of the foot, a phenomenon that is added to that of the cross-sectional variation mentioned before.

On a également observé que l'amplitude des variations diffère d'un individu à l'autre.It has also been observed that the amplitude of the variations differs from one individual to another.

Les chaussures connues proposent généralement un compromis au niveau de la rigidité de l'élément chaussant, afin de concilier la nécessité d'assurer un maintien optimal du pied et la nécessité de ne pas meurtrir le pied lors de ses variations de volume. Ainsi le flanc latéral, l'empeigne et le flanc médial d'une chaussure sont structurés pour couvrir le pied de façon homogène. En conséquence la chaussure maintient correctement le pied. Cela signifie notamment que la transmission des impulsions de conduite ou des informations sensorielles se fait avec précision.The known shoes generally offer a compromise in the rigidity of the footwear element, in order to reconcile the need to ensure optimal support of the foot and the need not to bruise the foot during its volume changes. Thus the lateral flank, the upper and the medial side of a shoe are structured to cover the foot homogeneously. As a result the shoe holds the foot properly. This means that the transmission of driving impulses or sensory information is done precisely.

Cependant, il est apparu qu'une telle chaussure n'apporte pas nécessairement tout le confort souhaité. Notamment au niveau du métatarse, ou au niveau des articulations entre le métatarse et les orteils, le pied est parfois exagérément serré, ou encore meurtri par des plis formés lors de flexions de l'élément chaussant. Cela revient à dire que la chaussure manque de confort. Afin de remédier à cet inconvénient, l'art antérieur a proposé des solutions.However, it has emerged that such a shoe does not necessarily provide all the desired comfort. Especially at the metatarsal level, or at the level of the joints between the metatarsus and the toes, the foot is sometimes excessively tight, or bruised by folds formed during flexions of the footwear element. That is to say that the shoe lacks comfort. In order to remedy this drawback, the prior art has proposed solutions.

Par exemple, selon le document EP 082 824 , la chaussure comprend une empeigne élastifiée. Cela signifie que la partie de l'élément chaussant située au niveau des orteils et du métatarse est capable de se déformer élastiquement, de manière réversible. Cette chaussure s'adapte facilement au pied, et procure un confort accru à celui-ci. Cependant le maintien du pied est insuffisant dans le sens où la transmission des informations, liées à l'utilisation de la chaussure, est altérée ou insuffisante.For example, according to the document EP 082 824 , the shoe includes an elasticated upper. This means that the part of the footwear element located at the level of the toes and the metatarsus is capable of deforming elastically, in a reversible manner. This shoe adapts easily to the foot, and provides increased comfort to it. However the maintenance of the foot is insufficient in the sense that the transmission of information, related to the use of the shoe, is impaired or insufficient.

On peut résumer l'art antérieur en disant que certaines chaussures apportent un bon maintien mais manquent de confort, et qu'à l'inverse d'autres chaussures sont plus confortables mais offrent un maintien du pied insuffisant, au moins dans certaines configurations. En d'autres termes aucune chaussure connue ne réussit à concilier, avec suffisamment d'optimisation, les deux caractéristiques antinomiques qui sont d'une part le maintien du pied au sens de la précision et, d'autre part, son confort au sens bien sûr de la préservation des traumatismes, des ampoules mais, aussi, au sens d'une constance dans la durée d'utilisation.One can summarize the prior art by saying that some shoes provide good support but lack comfort, and that in contrast to other shoes are more comfortable but offer insufficient foot maintenance, at least in some configurations. In other words, no known shoe manages to reconcile, with sufficient optimization, the two antinomic characteristics which are on the one hand the maintenance of the foot in the sense of precision and, on the other hand, its comfort in the sense sure of the preservation of trauma, bulbs but, also, in the sense of a consistency in the duration of use.

Par rapport à cela l'invention a pour but général d'améliorer les chaussures selon l'art antérieur. Ainsi l'un des buts de l'invention est de concilier les deux caractéristiques antinomiques que sont le maintien du pied ou la précision de transmission des informations entre le pied et la chaussure, avec le confort du pied dans la chaussure. Bien entendu le confort doit être considéré dans toutes les phases d'utilisation, c'est-à-dire quelles que soient les intensités des impulsions, et quelle que soit la durée d'utilisation. Il s'agit par exemple de prendre en compte les déformations naturelles du pied lors du déroulement ou d'un appui en flexion, en combinaison avec la variation générale de son volume lors d'une utilisation intense ou prolongée.In relation to this, the general object of the invention is to improve the shoes according to the prior art. Thus, one of the aims of the invention is to reconcile the two antinomic characteristics that are the maintenance of the foot or the precision of information transmission between the foot and the shoe, with the comfort of the foot in the shoe. Of course the comfort must be considered in all phases of use, that is to say whatever the intensity of the pulses, and regardless of the duration of use. This is for example to take into account the natural deformations of the foot during unwinding or support in flexion, in combination with the general variation of its volume during an intense or prolonged use.

Pour ce faire l'invention propose une chaussure comprenant un semelage externe et une tige, la chaussure s'étendant selon une direction longitudinale depuis une extrémité arrière jusqu'à une extrémité avant, selon une direction transversale entre un bord latéral et un bord médial, et en hauteur entre le semelage externe et un dessus, la tige comprenant une empeigne.To this end, the invention proposes a shoe comprising an outer sole and a upper, the boot extending in a longitudinal direction from a rear end to a front end, in a direction transverse between a lateral edge and a medial edge. and in height between the outer sole and a top, the upper comprising a vamp.

La chaussure selon l'invention est caractérisée par le fait que la tige comprend au moins une partie structurée pour se déformer élastiquement de manière réversible et de façon que les déformations soient contrôlées. On améliore ainsi le maintien et le confort du pied.The shoe according to the invention is characterized in that the rod comprises at least one part structured to deform elastically in a reversible manner and so that the deformations are controlled. This improves the maintenance and comfort of the foot.

Selon un mode de réalisation de l'invention, l'empeigne comprend une partie arrière destinée à couvrir le métatarse du pied de l'utilisateur, une partie avant destinée à couvrir les orteils du pied de l'utilisateur, et une partie intermédiaire destinée à couvrir la jonction entre les orteils et le métatarse du pied de l'utilisateur, la partie intermédiaire reliant la partie arrière à la partie avant, et s'étendant du bord latéral au bord médial, la partie intermédiaire étant structurée pour se déformer élastiquement de manière réversible et de façon que les déformations soient contrôlées.According to one embodiment of the invention, the upper comprises a rear part intended to cover the metatarsus of the user's foot, a front part intended to cover the toes of the user's foot, and an intermediate part intended to covering the junction between the toes and the metatarsus of the user's foot, the intermediate portion connecting the rear portion to the front portion, and extending from the lateral edge to the medial edge, the intermediate portion being structured to deform elastically so as to reversible and so that the deformations are controlled.

La partie intermédiaire est une section transversale de la tige qui présente une élasticité supérieure aux parties arrière et avant. La partie intermédiaire exerce, entre les parties arrière et avant, des efforts de rappel proportionnels aux sollicitations qu'elle subit, en accompagnant les déformations de l'empeigne. La partie intermédiaire, par son élasticité, évite l'apparition de plis ou de points durs entre les parties arrière et avant, ce qui évite de meurtrir le pied.The intermediate portion is a cross section of the rod which has superior elasticity to the rear and front parts. The intermediate portion exerts, between the rear and front parts, biasing efforts proportional to the stresses it undergoes, accompanying the deformations of the upper. The intermediate part, by its elasticity, avoids the appearance of creases or hard spots between the rear and front parts, which avoids bruising the foot.

La partie intermédiaire exerce une constriction élastique sur le pied, transversalement, au niveau des articulations entre les orteils et le métatarse. Ainsi cette section transversale du pied peut se déformer en étant maintenue de manière constante, c'est-à-dire sans excès temporaire de serrage et sans relâchement temporaire. Cela réduit la fatigue, surtout en utilisation prolongée, et réduit aussi, voire supprime, tout risque de traumatisme.The intermediate part exerts an elastic constriction on the foot, transversely, at the joints between the toes and the metatarsus. Thus this cross section of the foot can be deformed by being held in a constant manner, that is to say without temporary excess tightening and without temporary relaxation. This reduces fatigue, especially in prolonged use, and also reduces or eliminates any risk of trauma.

La partie intermédiaire forme une liaison régulière entre les parties arrière et avant, par opposition à une liaison qui, si elle n'avait pas été élastique, aurait formé des plis. Cela facilite des mouvements relatifs entre les parties arrière et avant, notamment lors de la flexion de la chaussure, flexion qui a lieu par exemple pendant un mouvement de déroulement du pied.The intermediate part forms a regular connection between the rear and front parts, as opposed to a connection which, if it had not been elastic, would have formed folds. This facilitates relative movements between the rear and front parts, in particular during the flexion of the shoe, bending which occurs for example during a movement of unwinding of the foot.

D'une manière générale, on peut dire que la chaussure de l'invention apporte à la fois une bonne tenue de pied et du confort. En particulier, au niveau des articulations entre les orteils et le métatarse, le maintien entre l'empeigne et le pied reste dans une plage de valeurs proches les unes des autres, en terme d'intensité, pendant les différentes phases d'utilisation de la chaussure, d'où un confort constant.In general, it can be said that the shoe of the invention provides both good footing and comfort. In particular, at the joints between the toes and the metatarsal, the maintenance between the upper and the foot remains in a range of values close to each other, in terms of intensity, during the various phases of use of the shoe, from which a constant comfort.

D'autres caractéristiques et avantages de l'invention ressortiront clairement de la description qui en est faite ci-après, à titre indicatif et nullement limitatif, en référence au dessin annexé, dans lequel :

  • la figure 1 est une vue en perspective d'une chaussure au repos selon un mode de réalisation de l'invention ;
  • la figure 2 est une vue de dessus de la partie avant de la chaussure de la figure 1 ;
  • la figure 3 est une vue de côté de la chaussure de la figure 1 au repos ;
  • la figure 4 est une vue en coupe de la chaussure de la figure 1 ;
  • la figure 5 est une vue en coupe transversale de la chaussure de la figure 1 au niveau de sa partie intermédiaire ;
  • la figure 6 est une vue agrandie de détail de la figure 4 ;
  • la figure 7 est une vue de côté de la chaussure de la figure 1 durant un déroulement,
  • la figure 8 est une vue de dessus de la partie avant de la chaussure de la figure 7, c'est-à-dire dans une phase de travail,
  • la figure 9 est une vue agrandie d'une subdivision d'une partie intermédiaire de l'empeigne, dans un cas où la chaussure est au repos,
  • la figure 10 est similaire à la figure 9, dans un cas où la chaussure est dans une phase de travail.
Other characteristics and advantages of the invention will emerge clearly from the description which is given hereinafter, by way of indication and in no way limiting, with reference to the appended drawing, in which:
  • the figure 1 is a perspective view of a shoe at rest according to one embodiment of the invention;
  • the figure 2 is a top view of the front part of the shoe from the figure 1 ;
  • the figure 3 is a side view of the shoe of the figure 1 resting ;
  • the figure 4 is a sectional view of the shoe of the figure 1 ;
  • the figure 5 is a cross-sectional view of the shoe of the figure 1 at its intermediate level;
  • the figure 6 is an enlarged detail view of the figure 4 ;
  • the figure 7 is a side view of the shoe of the figure 1 during a course,
  • the figure 8 is a top view of the front part of the shoe from the figure 7 , that is, in a work phase,
  • the figure 9 is an enlarged view of a subdivision of an intermediate portion of the upper, in a case where the shoe is at rest,
  • the figure 10 is similar to the figure 9 in a case where the shoe is in a work phase.

La figure 1 montre un premier exemple de réalisation de l'invention, lequel s'applique à une chaussure 1 pour la pratique de la marche ou de la course. La chaussure comprend un semelage externe 200 et une tige 300. La chaussure 1 s'étend selon une direction longitudinale L depuis une extrémité arrière 2 jusqu'à une extrémité avant 3, selon une direction transversale W entre un bord latéral 4 et un bord médial 5, et en hauteur entre le semelage externe 200 et un dessus 6.The figure 1 shows a first embodiment of the invention, which applies to a shoe 1 for the practice of walking or running. The shoe comprises an outer sole 200 and a shaft 300. The shoe 1 extends in a longitudinal direction L from a rear end 2 to a front end 3, in a transverse direction W between a lateral edge 4 and a medial edge 5, and in height between the outer sole 200 and a top 6.

La tige comprend une empeigne 305, laquelle est destinée à couvrir le pied depuis le cou-de-pied jusqu'aux orteils. L'empeigne 305 comprend notamment une partie arrière 340 pour recouvrir le métatarse du pied, une partie avant 310 pour recouvrir les orteils du pied et une partie intermédiaire 320 pour recouvrir la jonction entre les orteils et le métatarse du pied. La partie intermédiaire 320 relie la partie arrière 340 et la partie avant 310 de la tige. La partie intermédiaire 320 comprend une couche textile 323, plus ou moins extensible, obtenue par exemple par la technique du tricotage. La partie intermédiaire comprend aussi une membrane élastique 321, prévue pour s'allonger de manière réversible. La couche textile et la membrane élastique sont superposées et s'étendent ici en continu depuis le bord latéral 4 jusqu'au bord médial 5 de la chaussure. Plus précisément la couche et la membrane s'étendent d'un bord à l'autre au niveau du semelage externe 200, c'est-à-dire selon 100% de la partie intermédiaire 320 selon la direction transversale W. Cependant, dans l'esprit de l'invention, la couche et la membrane peuvent s'étendre entre 80 et 100% de la partie intermédiaire. Il va de soi que la partie intermédiaire présente une élasticité supérieure à l'élasticité de la partie avant et de la partie arrière de la tige. Cela revient à dire que la partie intermédiaire s'allonge plus pour une sollicitation de même intensité.The upper includes a vamp 305, which is intended to cover the foot from the instep to the toes. The upper 305 includes a rear portion 340 to cover the metatarsus of the foot, a front portion 310 to cover the toes of the foot and an intermediate portion 320 to cover the junction between the toes and metatarsal foot. The intermediate portion 320 connects the rear portion 340 and the front portion 310 of the rod. The intermediate portion 320 comprises a textile layer 323, more or less extensible, obtained for example by the knitting technique. The intermediate portion also comprises an elastic membrane 321, provided to extend in a reversible manner. The textile layer and the elastic membrane are superimposed and extend here continuously from the lateral edge 4 to the medial edge 5 of the shoe. More specifically, the layer and the membrane extend from one edge to the other at the level of the outer sole 200, that is to say along 100% of the intermediate portion 320 in the transverse direction W. However, in In the spirit of the invention, the layer and the membrane can extend between 80 and 100% of the intermediate portion. It goes without saying that the intermediate portion has an elasticity greater than the elasticity of the front portion and the rear portion of the rod. This amounts to saying that the intermediate part elongates more for a solicitation of the same intensity.

On remarque que la partie intermédiaire est orientée transversalement, c'est-à-dire selon la direction W perpendiculaire à la direction longitudinale L de la chaussure. Toutefois il est possible, en restant dans l'esprit de l'invention, que la partie intermédiaire soit orientée selon un angle compris entre 90° et 120° par rapport à la direction longitudinale L.Note that the intermediate portion is oriented transversely, that is to say in the direction W perpendicular to the longitudinal direction L of the shoe. However it is possible, keeping in the spirit of the invention, that the intermediate portion is oriented at an angle of between 90 ° and 120 ° relative to the longitudinal direction L.

Afin d'optimiser son rôle, la partie intermédiaire 320 est agencée de façon que son élasticité soit contrôlée. Plus précisément l'élasticité est amortie et donc contrôlée, afin d'éviter des variations de dimensions intempestives. En l'occurrence, la couche textile 323 et la membrane élastique 321 sont solidarisées l'une à l'autre, par exemple par un moyen de collage.In order to optimize its role, the intermediate portion 320 is arranged so that its elasticity is controlled. More precisely the elasticity is damped and therefore controlled, in order to avoid untimely dimensional variations. In this case, the textile layer 323 and the elastic membrane 321 are secured to one another, for example by a bonding means.

Bien entendu le rôle de la membrane élastique est comparable à celui d'un ressort, tandis que celui de la couche textile s'apparente à celui d'un amortisseur, celui-ci filtrant les impulsions ou les informations parasites.Of course the role of the elastic membrane is comparable to that of a spring, while that of the textile layer is similar to that of a damper, the latter filtering the pulses or parasitic information.

Une telle chaussure permet d'assurer un contact continu au niveau de la jonction entre les orteils et le métatarse, cette jonction présentant une très grande variation de sa section durant le déroulement du pied, comme on le voit sur la figure 8. Ce contact permet d'assurer une tenue du pied sans nuire au confort de l'utilisateur, et ce pour toutes les positions de déroulement du pied. La tenue du pied est par ailleurs optimisée par la moindre élasticité des parties avant 310 et arrière 340, dans des zones du pied subissant une moindre déformation de section.Such a shoe makes it possible to ensure continuous contact at the junction between the toes and the metatarsus, this junction having a very large variation of its section during the unwinding of the foot, as can be seen in FIG. figure 8 . This contact ensures a holding of the foot without harming the comfort of the user, and this for all positions unwinding of the foot. The holding of the foot is also optimized by the lower elasticity of the front 310 and rear 340, in areas of the foot undergoing a smaller deformation section.

La figure 1 est une vue en perspective d'un mode de réalisation de la chaussure 1 selon l'invention en position de repos. Les figures 2 et 3 sont respectivement des vues de dessus et de côté de la chaussure 1 de la figure 1 dans cette même position de repos. Comme on l'a vu la chaussure 1 s'étend en longueur selon la direction longitudinale L entre l'extrémité arrière ou talon 2 et l'extrémité avant ou pointe 3. La chaussure 1 s'étend en largeur selon la direction transversale W entre le côté latéral 4 et le côté médial 5.The figure 1 is a perspective view of an embodiment of the shoe 1 according to the invention in the rest position. The figures 2 and 3 are respectively top and side views of the shoe 1 of the figure 1 in this same rest position. As seen, the boot 1 extends in length in the longitudinal direction L between the rear end or heel 2 and the front end or tip 3. The shoe 1 extends in width in the transverse direction W between the lateral side 4 and the medial side 5.

La chaussure 1 comprend un semelage externe 200 et une tige 300 fixée sur le semelage 200. Le semelage 200 est destiné à être interposé entre le sol et le pied de l'utilisateur. La tige 300 est destinée à recouvrir le pied de l'utilisateur et à assurer son contact contre le semelage 200.The shoe 1 includes an outer sole 200 and a rod 300 attached to the sole 200. The sole 200 is intended to be interposed between the floor and the foot of the user. The rod 300 is intended to cover the foot of the user and to ensure its contact against the sole 200.

La tige 300 comprend une empeigne 305, laquelle présente la partie avant 310 destinée à recouvrir les orteils du pied. L'empeigne 305 présente également la partie arrière 340 destinée à recouvrir le métatarse et le coup-de-pied. Une ouverture 341 est ménagée dans la partie arrière 340 pour permettre l'introduction du pied à l'intérieur de la chaussure 1. L'empeigne 305 présente en outre la partie intermédiaire 320 destinée à recouvrir la jonction entre les orteils et le métatarse du pied. La partie intermédiaire 320 relie la partie arrière 340 et la partie avant 310 de la tige 300, c'est-à-dire de l'empeigne 305.The shaft 300 comprises a vamp 305, which has the front portion 310 for covering the toes of the foot. The upper 305 also has the back portion 340 for covering the metatarsus and the toe. An opening 341 is formed in the rear portion 340 to allow the introduction of the foot inside the shoe 1. The upper 305 also has the intermediate portion 320 intended to cover the junction between the toes and the metatarsus of the foot . The intermediate portion 320 connects the rear portion 340 and the front portion 310 of the rod 300, that is to say the upper 305.

Le semelage 200 est délimité transversalement par le bord médial 5 et le bord latéral 4. La partie arrière 340 présente un flanc médial 343 s'étendant depuis le bord médial du semelage 200, et un flanc latéral 342 s'étendant depuis le bord latéral du semelage 200. Le flanc latéral 342 et le flanc médial 343 sont joints à l'arrière de l'ouverture 341. La chaussure 1 est destinée à faciliter la marche ou la course et présente ainsi un semelage 200 ayant une souplesse suffisante pour pouvoir être fléchi autour d'un axe transversal de la chaussure. Le semelage 200 permet ainsi un déroulement du pied par appui de la pointe sur le sol et par décollement du talon du sol.The sole 200 is delimited transversely by the medial edge 5 and the lateral edge 4. The rear portion 340 has a medial side 343 extending from the medial edge of the sole 200, and a lateral flank 342 extending from the lateral edge of the 200. The side flank 342 and the medial flank 343 are joined to the rear of the opening 341. The boot 1 is intended to facilitate walking or running and thus has a sole 200 having sufficient flexibility to be able to be flexed. around a transverse axis of the shoe. The sole assembly 200 thus allows the foot to unwind by supporting the point on the ground and by detaching the heel from the ground.

Comme on le voit sur les figures 4 et 6, la tige 300 présente une enveloppe interne comprenant une couche textile de doublure 360 et une enveloppe externe. La doublure 360 est juxtaposée à l'enveloppe externe, sans y être fixée. Un léger glissement relatif entre la doublure 360 et l'enveloppe externe est donc possible. Cependant, il peut être prévu de fixer la doublure 360 à l'enveloppe, par tout moyen tel qu'une couture, un collage, ou autre. Comme détaillé plus précisément sur la vue en coupe de la figure 4, l'enveloppe externe comprend la couche textile 323 et la membrane élastique 321 dans la partie intermédiaire 320. La couche textile 323 est réalisée par exemple par la technique du tricotage. De ce fait la couche textile 323 comprend des brins de fil qui forment un réseau. La couche est apte à se déformer, par exemple en extension. Ce faisant les brins frottent les uns sur les autres, ce qui crée un effet d'amortissement. Les brins de fil sont constitués de toute matière synthétique appropriée, comme un polyéthylène, ou autre.As we see on the figures 4 and 6 , the rod 300 has an inner envelope comprising a textile liner layer 360 and an outer envelope. The liner 360 is juxtaposed to the outer envelope, without being fixed. A slight relative sliding between the lining 360 and the outer casing is therefore possible. However, it may be lining 360 to the envelope, by any means such as a seam, a collage, or other. As detailed more precisely on the sectional view of the figure 4 , the outer envelope comprises the textile layer 323 and the elastic membrane 321 in the intermediate portion 320. The textile layer 323 is made for example by the knitting technique. As a result, the textile layer 323 comprises yarn strands that form a network. The layer is able to deform, for example in extension. In doing so the strands rub on each other, which creates a damping effect. The strands of yarn are made of any suitable synthetic material, such as polyethylene, or the like.

La membrane élastique 321, quant à elle, s'apparente à une feuille constituée d'une matière déformable de manière réversible, un peu comme un ressort. La membrane 321 est par exemple constituée de polyuréthane, de caoutchouc, ou de tout matériau équivalent.The elastic membrane 321, in turn, is similar to a sheet made of a reversibly deformable material, a bit like a spring. The membrane 321 is for example made of polyurethane, rubber, or any equivalent material.

Il va de soi que la couche textile 323 et la membrane élastique 321 sont superposées. Plus précisément, elles 323, 321 sont assemblées l'une avec l'autre, par exemple par collage à chaud. Bien entendu, d'autres moyens pourraient convenir, y compris un collage à froid. Il en résulte que la couche textile 323 et la membrane élastique 321 coopèrent l'une avec l'autre pour conférer à la partie intermédiaire 320 une aptitude à se déformer élastiquement, de manière contrôlée. La membrane 321 joue le rôle d'un ressort de rappel, dans le sens où elle cherche à reprendre sa forme initiale quand elle est sollicitée en extension. La couche textile 323 accompagne les déformations élastiques de la membrane en les amortissant, par le frottement des fils. On remarque que la membrane 321 couvre la couche textile 323, dans le sens où elle 321 est en surface extérieure de tige, la couche textile 323 étant en retrait plus vers l'intérieur de la tige. On pourrait dire que la membrane chapeaute la couche textile.It goes without saying that the textile layer 323 and the elastic membrane 321 are superimposed. More specifically, they 323, 321 are assembled with each other, for example by hot gluing. Of course, other means could be suitable, including cold bonding. As a result, the textile layer 323 and the elastic membrane 321 cooperate with each other to impart to the intermediate portion 320 an ability to elastically deform in a controlled manner. The membrane 321 acts as a return spring, in the sense that it seeks to return to its original shape when it is stressed in extension. The textile layer 323 accompanies the elastic deformations of the membrane by damping them, by the friction of the son. It is noted that the membrane 321 covers the textile layer 323, in the sense that it 321 is on the outer surface of the rod, the textile layer 323 is recessed further towards the inside of the rod. It could be said that the membrane covers the textile layer.

Bien entendu la partie intermédiaire 320 ainsi configurée présente une élasticité supérieure à l'élasticité de la partie avant 310 et supérieure à l'élasticité de la partie arrière 340.Of course the intermediate portion 320 thus configured has an elasticity greater than the elasticity of the front portion 310 and greater than the elasticity of the rear portion 340.

On peut dire que la partie intermédiaire 320 forme un arceau élastique au-dessus de la jonction entre les orteils et les métatarses. La partie intermédiaire 320 épouse ainsi la section du pied durant son déroulement, malgré les très grandes variations dans le temps de cette section suivant les directions transversale et verticale. L'utilisateur a ainsi la sensation d'un contact ininterrompu avec la partie intermédiaire 320. De plus, la pression de la partie intermédiaire 320 sur le pied évolue progressivement durant le déroulement du pied du fait de l'élasticité, de sorte que le confort de la chaussure 1 est particulièrement appréciable. La couche textile 323 est apte à subir d'importantes déformations pour épouser le relief du pied, notamment du fait de sa texture. La membrane élastique 321, lorsqu'elle est écartée de sa position de repos, permet de rappeler la partie intermédiaire 320, et en particulier la couche textile 323, vers sa position de repos. La membrane 321 permet également de limiter les plissements de la partie intermédiaire 320 susceptibles de meurtrir le pied. La partie intermédiaire 320 permet en outre à la chaussure 1 de présenter une meilleure adaptation pour des utilisateurs souffrant de déformations osseuses au niveau du gros orteil.It can be said that the intermediate portion 320 forms an elastic arch above the junction between the toes and the metatarsals. The intermediate portion 320 thus marries the foot section during its course, despite the very large variations in time of this section along the transverse and vertical directions. The user thus has the sensation of an uninterrupted contact with the intermediate portion 320. In addition, the pressure of the intermediate portion 320 on the foot gradually changes during the unwinding of the foot due to the elasticity, so that the comfort of the shoe 1 is particularly appreciable. The textile layer 323 is able to undergo significant deformations to match the relief of the foot, particularly because of its texture. The elastic membrane 321, when it is moved away from its rest position, makes it possible to return the intermediate portion 320, and in particular the textile layer 323, to its rest position. The membrane 321 also makes it possible to limit the folds of the intermediate portion 320 that can bruise the foot. The intermediate portion 320 further allows the shoe 1 to present a better fit for users suffering from bone deformities at the big toe.

On l'a vu la membrane 321 est fixée sur la couche textile 323, par exemple par thermocollage. Comme on le voit plus en détail sur les figures 9 et 10, la membrane 321 présente avantageusement des orifices 322 découvrant la couche textile 323. Ces orifices 322 sont dimensionnés pour ajuster, c'est-à-dire pour contrôler, l'élasticité de la partie intermédiaire 320. En effet, une augmentation du nombre d'orifices, ou une augmentation de leur taille, se traduit par une réduction de la surface active de la membrane élastique 321. En d'autres termes une augmentation du nombre d'orifices réduit la capacité de rappel élastique de la membrane 321. Par corollaire ce sont les caractéristiques d'élasticité de l'enveloppe externe qui sont ajustées. Par la variation de la taille des orifices, on peut contrôler et ajuster l'élasticité de l'ensemble couche textile 323/membrane élastique 321. Dans tous les cas la partie intermédiaire 320 maintient le pied en toutes circonstances.It has been seen that the membrane 321 is fixed on the textile layer 323, for example by heat-sealing. As can be seen in more detail on the Figures 9 and 10 , the membrane 321 advantageously has orifices 322 revealing the textile layer 323. These orifices 322 are sized to adjust, that is to say to control, the elasticity of the intermediate portion 320. Indeed, an increase in the number of orifices, or an increase in their size, results in a reduction of the active surface of the elastic membrane 321. In other words an increase in the number of orifices reduces the resilient return capacity of the membrane 321. By corollary it is the elasticity characteristics of the outer envelope that are adjusted. By varying the size of the orifices, it is possible to control and adjust the elasticity of the textile layer assembly 323 / elastic membrane 321. In all cases the intermediate portion 320 holds the foot in all circumstances.

On remarque en complément que la couche textile 323 est avantageusement perméable à l'air. Les orifices 322 facilitent notamment l'évacuation de la sueur présente à l'intérieur de la chaussure 1. Les orifices 322 facilitant également l'évacuation de l'air hors de la chaussure lors du déroulement du pied, en particulier en présence de sueur dans la chaussure.In addition, it can be seen that the textile layer 323 is advantageously permeable to air. The orifices 322 particularly facilitate the evacuation of the sweat present inside the shoe 1. The orifices 322 also facilitating the evacuation of air from the shoe during the unwinding of the foot, especially in the presence of sweat in the shoe.

Selon la structure décrite, les orifices 322 présentent une forme hexagonale. Cependant d'autres formes pourraient convenir, comme des cercles, des oblongs, des triangles, des carrés, des rectangles, des losanges, ou autre.According to the structure described, the orifices 322 have a hexagonal shape. However other shapes might be suitable, such as circles, oblongs, triangles, squares, rectangles, diamonds, or other.

On peut ainsi éviter des pertes de contact entre la tige 300 et le pied en empêchant la formation d'une poche d'air au niveau de la partie intermédiaire 320.It is thus possible to avoid loss of contact between the rod 300 and the foot by preventing the formation of an air pocket at the intermediate portion 320.

Pour assurer un déroulement optimal du pied avec un maintien du contact, comme selon la figure 7, la partie intermédiaire 320 présente avantageusement une largeur supérieure à 5mm sur toute sa longueur entre le bord médial et le bord latéral du semelage 200. Bien entendu la largeur de la partie intermédiaire 320 est mesurée selon la direction longitudinale L de la chaussure, tandis que sa longueur est mesurée selon la direction transversale W. On remarque au passage que la largeur est variable, la partie intermédiaire 320 étant plus étroite au niveau du dessus 6.To ensure an optimal foot movement with a maintenance of the contact, as according to the figure 7 , the intermediate portion 320 advantageously has a width greater than 5 mm over its entire length between the medial edge and the lateral edge of the sole 200. Of course the width of the intermediate portion 320 is measured along the longitudinal direction L of the shoe, while its length is measured in the transverse direction W. It is noted in passing that the width is variable, the intermediate portion 320 being narrower at the top 6.

Comme illustré à la figure 4, la partie intermédiaire 320 est fixée à la partie avant 310 et à la partie arrière 340 respectivement par des coutures 361 et 362. La partie avant 310 présente une couche textile 316. La partie arrière 340 présente une couche textile 345. Avantageusement, la membrane 321 recouvre les coutures 361 et 362 des couches textiles 316 et 345. La membrane 321 permet ainsi avantageusement de masquer les coutures 361 et 362 et de les protéger de l'usure. Les couches textile 316 et 345 sont structurées de façon que leur capacité d'extension est inférieure à la capacité d'extension de la couche textile 323 de la partie intermédiaire 320.As illustrated in figure 4 , the intermediate portion 320 is fixed to the front portion 310 and the rear portion 340 respectively by seams 361 and 362. The front portion 310 has a textile layer 316. The rear portion 340 has a textile layer 345. Advantageously, the membrane 321 covers the seams 361 and 362 of the textile layers 316 and 345. The membrane 321 thus advantageously makes it possible to hide the seams 361 and 362 and to protect them from wear. The textile layers 316 and 345 are structured so that their extension capacity is less than the extension capacity of the textile layer 323 of the intermediate portion 320.

Avantageusement, la couche textile 316 de la partie avant 310 présente une ou plusieurs zones 312 non recouvertes par la membrane 321. Une zone 312 s'étend notamment dans la partie médiane de la partie avant 310. Lors du déroulement du pied de l'utilisateur, cette zone 312 peut subir des plissements en remplacement de la partie intermédiaire 320, les orteils étant moins sensibles à une éventuelle perte de contact avec la tige 300.Advantageously, the textile layer 316 of the front portion 310 has one or more areas 312 not covered by the membrane 321. An area 312 extends in particular in the middle portion of the front portion 310. During the unfolding of the user's foot , this zone 312 can be folded to replace the intermediate portion 320, the toes being less sensitive to a possible loss of contact with the rod 300.

La membrane 321 présente avantageusement des portions s'étendant en continu depuis une extrémité avant jusqu'à une extrémité arrière de la couche textile 323, selon la direction longitudinale L de la chaussure. Ces portions permettent d'exercer un effort de rappel axial sur la couche textile 323. Ces portions délimitent ainsi les orifices 322.The membrane 321 advantageously has portions extending continuously from a front end to a rear end of the textile layer 323, in the longitudinal direction L of the shoe. These portions make it possible to exert an axial return force on the textile layer 323. These portions thus delimit the orifices 322.

La membrane 321 présente avantageusement des portions 311 et 313 formant une ceinture qui s'étend vers le bas de la partie avant 310. La ceinture formée garantit ainsi une étanchéité de la zone inférieure de la partie avant 310, la plus à même d'être en contact avec de l'eau. Les portions 311 et 313 peuvent par exemple s'étendre en continu depuis les bords du semelage 200.The membrane 321 advantageously has portions 311 and 313 forming a belt that extends downwardly from the front portion 310. The formed belt thus ensures a seal of the lower zone of the front portion 310, the most likely to be in contact with water. The portions 311 and 313 may, for example, extend continuously from the edges of the sole assembly 200.

La partie avant comprend avantageusement un embout 314 relativement rigide, assurant la protection du pied et de la couche textile 316. Le semelage 200 présente par ailleurs une languette 204 venant recouvrir l'extrémité avant de l'embout 314, pour protéger celui-ci contre l'abrasion.The front portion advantageously comprises a relatively rigid tip 314, providing protection for the foot and the textile layer 316. The sole assembly 200 also has a tongue 204 coming to cover the front end of the end piece 314, to protect it against abrasion.

La membrane 321 comprend avantageusement un pont 315 traversant axialement la partie avant 310. Ce pont 315 peut être prévu pour exercer un effort de rappel vers une position de la chaussure 1 correspondant à un léger déroulement du pied. Le pont 315 peut à cet effet présenter une extrémité solidaire de la coque 314. Bien entendu, le pont 315 n'est pas obligatoire et la chaussure pourrait en être dépourvue.The membrane 321 advantageously comprises a bridge 315 axially traversing the front portion 310. This bridge 315 may be provided to exert a return force to a position of the shoe 1 corresponding to a slight unwinding of the foot. The bridge 315 may for this purpose have an end secured to the hull 314. Of course, the bridge 315 is not mandatory and the shoe may be devoid of it.

La membrane 321 peut être réalisée sous forme de film présentant une épaisseur comprise entre 0,1 et 0,8 mm. On peut par exemple réaliser un tel film en polyuréthane, en chlorure de polyvinyle, en silicone, ou autre.The membrane 321 may be made in the form of a film having a thickness of between 0.1 and 0.8 mm. It is possible, for example, to produce such a film in polyurethane, in polyvinyl chloride, in silicone, or other.

La couche textile 323 présente une épaisseur comprise entre 0,5 et 3 mm, sachant que des valeurs allant de 0,5 à 1,5 mm ont donné de bons résultats. Les fibres constitutives de la couche 323 sont par exemple en matière synthétique, comme du polyuréthane, du polyéthylène, du nylon, ou tout équivalent. Les fibres de la couche 323 sont tissées de façon à permettre sa déformation, notamment en extension ; il peut s'agir par exemple de tricoter les fibres. Il s'ensuit que la couche 323 s'apparente à un tricot.The textile layer 323 has a thickness between 0.5 and 3 mm, knowing that values ranging from 0.5 to 1.5 mm have given good results. The constituent fibers of the layer 323 are for example made of synthetic material, such as polyurethane, polyethylene, nylon or any equivalent. The fibers of the layer 323 are woven so as to allow it to deform, especially in extension; it may be for example to knit the fibers. It follows that the layer 323 is similar to a knit.

Au final, pour une même sollicitation dans un sens d'allongement, ou d'extension, la partie intermédiaire 320 s'allonge ou s'étend au moins 1,5 fois plus que la partie avant 310 ou que la partie arrière 340. On prévoit par exemple que la partie intermédiaire 320 s'allonge de 2 à 4 fois plus que les parties avant 310 et arrière 340.Finally, for the same stress in a direction of elongation or extension, the intermediate portion 320 extends or extends at least 1.5 times more than the front portion 310 or the rear portion 340. provides for example that the intermediate portion 320 extends 2 to 4 times more than the front portion 310 and rear 340.

L'élasticité de la partie intermédiaire 320 est essentiellement définie par les matériaux et la géométrie de la membrane 321 et de la couche textile 323. On remarque que dans la partie intermédiaire 320, la doublure 360 est juxtaposée à l'enveloppe externe sans y être assujettie. De ce fait la doublure 360 n'entrave pas l'élasticité de la partie intermédiaire 320.The elasticity of the intermediate portion 320 is essentially defined by the materials and the geometry of the membrane 321 and the textile layer 323. Note that in the intermediate portion 320, the liner 360 is juxtaposed to the outer casing without being there. subject. As a result, the liner 360 does not impede the elasticity of the intermediate portion 320.

Selon le mode de réalisation illustré, la partie arrière 340 présente une ouverture avant 370, qui prolonge l'ouverture de chaussage 341 vers l'avant, entre le flanc latéral 342 et le flanc médial 343.According to the illustrated embodiment, the rear portion 340 has a front opening 370, which extends the boot opening 341 forwards, between the lateral flank 342 and the medial side 343.

Ici l'ouverture avant 370 est délimitée vers l'avant par la partie intermédiaire 320. On pourrait alternativement prévoir une séparation entre l'ouverture avant 370 et la partie intermédiaire 320. L'ouverture 370 est obturée par une languette 500 fixée par son extrémité inférieure 371 à la tige 300. La languette 500 n'est pas obligatoire, et on peut prévoir une chaussure sans languette. Il est également prévu un moyen de serrage réversible de la tige 300. Ce moyen comprend par exemple un dispositif de laçage 400, disposé à l'aplomb de l'ouverture. Le dispositif de laçage 400 comprend de façon connue en soi un lacet 402 traversant des oeillets et des boucles 401 ménagés sur la bordure des flancs 342 et 343. On peut également prévoir de ne pas équiper la chaussure 1 de dispositif de laçage 400. Dans ce cas, la partie arrière 340 est continue depuis le flanc latéral 342 jusqu'au flanc médial 343.Here the opening before 370 is delimited forward by the intermediate portion 320. Alternatively, a separation could be provided between the front opening 370 and the intermediate portion 320. The opening 370 is closed by a tongue 500 fixed by its end. 371 lower to the rod 300. The tongue 500 is not mandatory, and can be provided a shoe without tab. It is also provided a reversible clamping means of the rod 300. This means comprises for example a lacing device 400, disposed vertically above the opening. The lacing device 400 comprises, in a manner known per se, a lace 402 passing through eyelets and loops 401 formed on the edge of the sidewalls 342 and 343. It is also possible not to equip the shoe 1 with a lacing device 400. case, the rear portion 340 is continuous from the lateral flank 342 to the medial side 343.

Pour assurer un maintien optimal du pied, la couche textile 345 de la partie arrière 340 est avantageusement revêtue d'une armature 344 par exemple en matière synthétique. Par exemple l'armature comprend des subdivisions de matière plastique, ou est intégralement réalisée en matière plastique. L'armature 344 est ici d'un seul tenant, mais on peut alternativement prévoir de la réaliser en plusieurs subdivisions L'armature 344 rigidifie la partie arrière 340. Elle 344 est par exemple fixée par collage, ou par tout moyen équivalent, à la couche textile 345.To ensure optimal support of the foot, the textile layer 345 of the rear portion 340 is preferably coated with a frame 344 for example of synthetic material. For example the reinforcement comprises subdivisions of plastic material, or is integrally made of plastic material. The armature 344 is here in one piece, but it can alternatively be provided in several subdivisions The armature 344 stiffens the rear portion 340. It 344 is for example fixed by gluing, or by any equivalent means, to the textile layer 345.

La figure 5 est une vue en section transversale de la chaussure 1 au niveau de la partie intermédiaire 320. La tige 300 est fixée à un semelage interne 203 par tout moyen pour former un élément chaussant. Ici la tige 300 est solidarisée au semelage 203 par des coutures 363, de préférence selon la technique Stroble. Ensuite l'élément chaussant est solidarisé au semelage externe par collage. Cependant, il peut alternativement être prévu d'associer la tige 300 au semelage interne 203 par collage, ou encore de prévoir des moyens d'emboîtement. Le semelage interne 203 peut également comprendre en supplément une semelle de propreté non illustrée. L'élément chaussant est fixé au semelage externe par collage, à l'aide d'une couche de colle. Le semelage externe illustré comprend plusieurs couches. Le semelage externe comprend une couche d'usure 201 et une couche d'amortissement 202. La couche d'usure 201 est prévue pour entrer en contact avec le sol afin d'optimiser l'adhérence de la chaussure 1 et de limiter son usure. La couche d'usure 201 peut comprendre du caoutchouc ou tout matériau résistant à l'abrasion. La couche d'amortissement 202 comprend un matériau fortement déformable pour absorber les chocs lors du contact du semelage 200 avec le sol, comme une mousse d'éthyle vinyle acétate (EVA) ou tout autre matériau approprié. Comme illustré sur la figure, le bord médial et le bord latéral du semelage 202 présentent une lèvre 205 formant une jonction avec la tige 300. La lèvre 205 permet d'augmenter la surface de contact avec la tige 300, ce qui augmente notamment la surface utile pour solidariser l'élément chaussant au semelage externe et la surface utile d'amortissement des chocs.The figure 5 is a cross-sectional view of the shoe 1 at the intermediate portion 320. The rod 300 is fixed to an internal sole 203 by any means to form a footwear element. Here the rod 300 is secured to the sole 203 by seams 363, preferably according to the Stroble technique. Then the footwear element is secured to the outer sole by gluing. However, it may alternatively be provided to associate the rod 300 to the internal sole 203 by gluing, or to provide interlocking means. The internal sole 203 may also include in addition a sockliner not shown. The footwear is attached to the outer sole by gluing, using a layer of glue. The illustrated outer sole comprises several layers. The outer sole comprises a wear layer 201 and a cushioning layer 202. The wear layer 201 is provided to come into contact with the ground in order to optimize the adhesion of the boot 1 and to limit its wear. The wear layer 201 may comprise rubber or any material resistant to abrasion. The damping layer 202 comprises a highly deformable material for absorbing shocks upon contact of the sole 200 with the ground, such as an ethyl vinyl acetate (EVA) foam or other suitable material. As illustrated in the figure, the medial edge and the lateral edge of the sole 202 have a lip 205 forming a junction with the rod 300. The lip 205 makes it possible to increase the area of contact with the rod 300, which in particular increases the surface area. useful for securing the footwear element to the outer sole and the effective shock absorbing surface.

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

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

En particulier, si la partie intermédiaire comprend deux épaisseurs, à savoir la couche textile 323 et la membrane élastique 321, ou bien trois si l'on compte la doublure 360, il peut en être prévu encore plus, comme quatre, ou plus.In particular, if the intermediate portion comprises two thicknesses, namely the textile layer 323 and the elastic membrane 321, or three if the lining 360 is counted, it can be provided even more, such as four or more.

Par ailleurs la partie à élasticité contrôlée peut être prévue dans d'autres zones de la chaussure, comme par exemple sur un seul côté latéral ou médial de la tige, sur une partie de tige haute, sans que l'on sorte pour autant de l'invention.Moreover, the part with controlled elasticity can be provided in other areas of the shoe, such as for example on one side or medial side of the upper, on a portion of the upper stem, without it being possible for so much of the 'invention.

Claims (18)

Chaussure (1) comprenant un semelage externe (200) et une tige (300), la chaussure s'étendant selon une direction longitudinale (L) depuis une extrémité arrière (2) jusqu'à une extrémité avant (3), selon une direction transversale (W) entre un bord latéral (4) et un bord médial (5), et en hauteur entre le semelage externe (200) et un dessus (6), la tige (300) comprenant une empeigne (305),
caractérisée par le fait que la tige (300) comprend au moins une partie (320) structurée pour se déformer élastiquement de manière réversible et de façon que les déformations soient contrôlées.Shoe (1) comprising an outer sole (200) and a shaft (300), the shoe extending in a longitudinal direction (L) from a rear end (2) to a front end (3) in a direction transverse (W) between a lateral edge (4) and a medial edge (5), and in height between the outer sole (200) and a top (6), the upper (300) comprising a vamp (305),
characterized in that the rod (300) comprises at least one portion (320) structured to deform resiliently in a reversible manner and so that the deformations are controlled. Chaussure (1) selon la revendication 1, caractérisée par le fait que la partie (320) comprend une couche textile (323) et une membrane élastique (321).Shoe (1) according to claim 1, characterized in that the portion (320) comprises a textile layer (323) and an elastic membrane (321). Chaussure (1) selon la revendication 2, caractérisée par le fait que la couche textile (323) et la membrane élastique (321) sont solidarisées l'une à l'autre.Shoe (1) according to claim 2, characterized in that the textile layer (323) and the elastic membrane (321) are secured to one another. Chaussure (1) selon la revendication 2 ou 3, caractérisée par le fait que la couche textile (323) et la membrane élastique (321) sont assemblées l'une à l'autre par collage.Shoe (1) according to claim 2 or 3, characterized in that the textile layer (323) and the elastic membrane (321) are assembled to one another by gluing. Chaussure selon l'une des revendications 2 à 4, dans laquelle la membrane (321) présente des orifices (322) découvrant la couche textile.Shoe according to one of claims 2 to 4, wherein the membrane (321) has orifices (322) revealing the textile layer. Chaussure (1) selon la revendication 5, caractérisée par le fait que les orifices (322) présentent une forme hexagonale.Shoe (1) according to claim 5, characterized in that the orifices (322) have a hexagonal shape. Chaussure (1) selon la revendication 5 ou 6, caractérisée par le fait que les orifices (322) sont dimensionnés pour contrôler l'élasticité de la partie intermédiaire (320).Shoe (1) according to claim 5 or 6, characterized in that the orifices (322) are dimensioned to control the elasticity of the intermediate portion (320). Chaussure selon l'une des revendications 2 à 7, dans laquelle la couche textile (323) et la membrane (321) forment une surface externe de la partie (320).Shoe according to one of claims 2 to 7, wherein the textile layer (323) and the membrane (321) form an outer surface of the portion (320). Chaussure selon l'une des revendications 5 à 8, dans laquelle la couche textile (323) de la partie (320) est perméable à l'air.Shoe according to one of claims 5 to 8, wherein the textile layer (323) of the portion (320) is permeable to air. Chaussure (1) selon l'une des revendications 2 à 9, caractérisée par le fait que la membrane (321) est en surface extérieure de la tige (300).Shoe (1) according to one of claims 2 to 9, characterized in that the membrane (321) is on the outer surface of the rod (300). Chaussure (1) selon l'une des revendications 1 à 10, caractérisée par le fait que l'empeigne (305) comprend une partie arrière (340) destinée à couvrir le métatarse du pied de l'utilisateur, une partie avant (310) destinée à couvrir les orteils du pied de l'utilisateur et une partie intermédiaire (320) destinée à couvrir la jonction entre les orteils et le métatarse du pied de l'utilisateur, la partie intermédiaire (320) reliant la partie arrière (340) et la partie avant (310), et s'étendant du bord latéral (4) au bord médial (5), la partie intermédiaire (320) étant structurée pour se déformer élastiquement de manière réversible et de façon que les déformations soient contrôlées.Shoe (1) according to one of claims 1 to 10, characterized in that the upper (305) comprises a rear portion (340) for covering the metatarsus of the user's foot, a front portion (310) for covering the toes of the user's foot and an intermediate portion (320) for covering the junction between the toes and the metatarsal of the user's foot, the intermediate portion (320) connecting the back portion (340) and the front portion (310), and extending from the lateral edge (4) to the medial edge (5), the intermediate portion (320) being structured to elastically deform in a reversible manner and so that the deformations are controlled. Chaussure selon l'une quelconque des revendications 2 à 11, dans laquelle une zone médiane (312) de la partie avant (310) de la tige comprend une couche textile (316) externe non recouverte par la membrane.Shoe according to any one of claims 2 to 11, wherein a central region (312) of the front portion (310) of the upper comprises an outer textile layer (316) not covered by the membrane. Chaussure selon l'une quelconque des revendications 2 à 12, dans laquelle la membrane (321) présente des portions s'étendant en continu depuis une extrémité avant jusqu'à une extrémité arrière de la couche textile de la partie intermédiaire (320).Shoe according to any one of claims 2 to 12, wherein the membrane (321) has portions extending continuously from a front end to a rear end of the textile layer of the intermediate portion (320). Chaussure selon l'une quelconque des revendications 2 à 13, dans laquelle la membrane forme une ceinture (311, 313) entourant une zone inférieure de la partie avant (310).Shoe according to any one of claims 2 to 13, wherein the membrane forms a belt (311, 313) surrounding a lower zone of the front portion (310). Chaussure selon l'une quelconque des revendications 2 à 14, dans laquelle la membrane (321) est constituée d'un film présentant une épaisseur comprise entre 0,1 et 0,8 mm.Shoe according to any one of claims 2 to 14, wherein the membrane (321) consists of a film having a thickness of between 0.1 and 0.8 mm. Chaussure selon l'une quelconque des revendications 2 à 15, dans laquelle la partie arrière (340) et la partie avant (310) comprennent des couches en textile (316, 345), la couche textile de la partie intermédiaire (320) étant fixée aux couches en textile des parties avant et arrière par des coutures (361, 362), les coutures étant recouvertes par ladite membrane (321).Shoe according to any one of claims 2 to 15, wherein the rear portion (340) and the front portion (310) comprise textile layers (316, 345), the textile layer of the intermediate portion (320) being fixed to the textile layers of the front and rear portions by seams (361, 362), the seams being covered by said membrane (321). Chaussure selon l'une quelconque des revendications précédentes, dans laquelle la partie intermédiaire (320) présente une largeur supérieure à 5 mm sur toute sa longueur entre le bord médial et le bord latéral du semelage (200).Shoe according to any one of the preceding claims, wherein the intermediate portion (320) has a width greater than 5 mm throughout its length between the medial edge and the lateral edge of the sole (200). Chaussure selon l'une quelconque des revendications précédentes, dans laquelle la partie arrière de la tige présente un flanc médial (343) et un flanc latéral (342) séparés par une ouverture (370) dont une extrémité (371) est délimitée par la partie intermédiaire (320).Shoe according to any one of the preceding claims, in which the rear part of the upper has a medial side (343) and a side flank (342) separated by an opening (370) whose end (371) is delimited by the part intermediate (320).
EP11004632A 2010-06-11 2011-06-07 Shoe with improved walking comfort Withdrawn EP2394523A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1002467A FR2961068B1 (en) 2010-06-11 2010-06-11 SHOE WITH IMPROVED WORK COMFORT

Publications (1)

Publication Number Publication Date
EP2394523A1 true EP2394523A1 (en) 2011-12-14

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CN105831871A (en) * 2015-01-12 2016-08-10 福建鸿星尔克体育用品有限公司 Sports shoe and vamp thereof
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FR2961068B1 (en) 2013-04-26
FR2961068A1 (en) 2011-12-16
CN102326911A (en) 2012-01-25
US20110302810A1 (en) 2011-12-15

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