EP1972224A1 - Shoe and its bottom assembly - Google Patents

Shoe and its bottom assembly Download PDF

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Publication number
EP1972224A1
EP1972224A1 EP07005560A EP07005560A EP1972224A1 EP 1972224 A1 EP1972224 A1 EP 1972224A1 EP 07005560 A EP07005560 A EP 07005560A EP 07005560 A EP07005560 A EP 07005560A EP 1972224 A1 EP1972224 A1 EP 1972224A1
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EP
European Patent Office
Prior art keywords
insert
shoe
layer
rod
shoe according
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Withdrawn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
EP07005560A
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German (de)
French (fr)
Inventor
Jean-Michel Challe
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Salomon SAS
Original Assignee
Salomon SAS
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Filing date
Publication date
Application filed by Salomon SAS filed Critical Salomon SAS
Priority to EP07005560A priority Critical patent/EP1972224A1/en
Publication of EP1972224A1 publication Critical patent/EP1972224A1/en
Withdrawn legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/08—Heel stiffeners; Toe stiffeners
    • A43B23/081—Toe stiffeners
    • A43B23/086—Toe stiffeners made of impregnated fabrics, plastics or the like
    • A43B23/087—Toe stiffeners made of impregnated fabrics, plastics or the like made of plastics

Definitions

  • the invention relates to a shoe including a sport comprising a shaft surmounting an outer soleing made according to a laminated profile in several layers fulfilling distinct functions.
  • Such a shoe construction and especially its sole provides a modular concept of sole in which each layer performs very distinct functions, the modulation of which provides shoes to meet the different needs to be filled according to the particular sport to the practice of which the shoe is intended.
  • the FR 2,777,429 also discloses a shoe provided with a three-layered sole in which the intermediate layer, called “nerve”, has transverse recesses of particular shape intended to provide a stable and stable support of the shoe, and in particular to provide a support in ""edgecatch", that is to say, increased grip in the land in reverse.
  • the object of the present invention is to provide an improvement to the outer sole constructions of the type mentioned above.
  • An object of the present invention is in particular to provide a sole construction which provides a stimulus effect.
  • a stimulus effect is interesting for use in running, but also depending on the case for use walk or otherwise.
  • the shoe according to the invention which is of the type comprising a rod surmounting an outer sole, comprising from the bottom upwards an outer sole having adhesion characteristics, an insert having controlled characteristics of rigidity, and a top layer of comfort damping material and / or viscoelastic, in that the insert has a front portion up along the upper comfort layer.
  • the insert comes by its front part to compress, or prevent deformation, the comfort layer in the phases of flexion of the foot, because of the additional energy is stored by the layer comfort, this energy being restored during the next phase of relaxation of the foot.
  • the rise of the insert thus makes it possible to obtain, by compressing the comfort layer, an additional stimulus effect, which is added to the stimulus effect associated with the more or less rigid material constituting said insert.
  • the figure 1 represents a shoe 1 according to the invention consisting of a rod 10 and an outer sole 20 surmounted by said rod.
  • the shoe 1 is a shoe intended for running, particularly on uneven ground, and therefore has a relatively low shaft 10 and an outer sole 20 that dampens but is nevertheless low enough so as not to damage the stability of the foot. on uneven ground or on slopes.
  • the rod 10 is provided, in a manner known per se, with a lacing system 11 and a front end 12.
  • the sole assembly 20 comprises, in a manner known per se, an outsole 21 or contact layer of adherent and wear-resistant material such as rubber, an insert 30 constituted in this case by two parts respectively before 33 and rear 31 , and a so-called upper comfort layer 22 which is of damping material such as EVA.
  • This comfort layer 22 may also be made of a viscoelastic material such as elastomer, PU foam.
  • the insert 30 is, in the example shown, consisting of two respectively rear and front portions 31 and 33, but it could obviously be in one part.
  • this rear portion 31 of the insert is not described in detail.
  • this rear portion 31 has a vault shape extending as far as the edges of the outer sole 21 and defining tabs 32 surrounding this outer sole as described in FIG. EP 1 447 019 , this construction being advantageous for hanging on non-flat terrain.
  • a shim 50 of damping material such as EVA, PU foam is interposed between the rear portion 31 of the insert and the contact layer 21 (cf. figure 3 ), this shim 50 could be removed so as to have a direct contact of 31 and 21.
  • this rear portion 31 of the insert could have a completely different shape / construction depending on the desired result and / or type of shoe.
  • the insert 30 is preferably made of an elastically deformable material, that is to say a relatively rigid material and having controlled torsional and flexural stiffness characteristics, and having a Young's modulus E greater than 40 MPa.
  • Composite materials for example based on fiberglass / carbon and synthetic resin having a Young's modulus E greater than 50 MPa are also conceivable.
  • the thickness will be a function of the desired degree of elasticity and the Young's modulus of the selected material.
  • the two insert parts 30, 31 may have similar or different stiffnesses, in the latter case the insert portion 30 may be chosen steeper than the insert portion 31, or vice versa.
  • the rear portion 31 of the insert is extended forward by two V-shaped branches 32a deviating and having a reduced thickness relative to the remainder of said rear portion 31.
  • the front portion 33 of the insert also has two horizontal branches 34 having slightly divergent shapes corresponding to those of the branches 32a of the rear portion 31 of the insert. These two branches 34 extend forwards by a vertical rise 35 which covers the upper comfort layer 22 and the front end 12 of the rod 10 (cf. figure 1 ).
  • the front lift 35 of the insert extends only at the end of the boot, ie not on the sides thereof. Depending on the case, it can also go up on the sides.
  • the insert 30 in two parts 31, 33 reduces the number of molds necessary for the realization thereof. Indeed by overlapping of the branches 32a and 34 respectively rear and front portions of the insert, one can use the same type of insert for several shoe sizes. It suffices to have a recovery function of the length of the shoe and to proceed to the bonding.
  • the two insert parts 30, 31 can also be connected together without overlapping or simply butted.
  • the branches 34 also have a reduced thickness in their area 34a of overlap with the branches 32a, so as to avoid any discontinuity in the insert. Finally, the branches 34 have in the horizontal zone an enlargement 34b can be visible on the sides of the sole after the shoe mounted.
  • the vertical lift 35 has, in the example shown, the shape of an inverted vertical U connecting the two horizontal branches 34.
  • FIGS. 1 to 4 illustrate a first embodiment in which a first subset comfort layer 22-rear portion 31 of the insert is made by gluing (cf. figure 3 ).
  • This first subassembly is assembled by gluing to the rod 10 provided with a front end 12 and a strobel sole 13, said rod being mounted on a shape (not shown in the drawing).
  • the front portion 33 of the insert is then assembled, by gluing, both to the stem and to the first subset of the comfort layer 22 - rear portion 31 of the insert, as shown in FIG. figure 4 .
  • the front portion 35 of the portion of the front insert 33 traps both the comfort layer 22 and the rod 10.
  • the reinforcing front portion 33 comes by its ascent before forcing both the layer of damping material 22 and the rod 10.
  • the material constituting the comfort layer 22 is constrained and prevented from expanding, thereby the end of the bending movement, said material of this layer 22 will tend to return to its original shape and release an energy that will be added to that restored by the elastic material constituting the front portion 33 of the insert.
  • the stiffness of the rod can also affect the energy release.
  • the shoe has exactly the same elements, the only difference residing in the assembly mode thereof.
  • front portion 33 of the insert is a separate subassembly with the front end 12 of the upper of the shoe.
  • This subassembly can be made by bonding these two elements or by overmolding the front end 12 on the front portion of the insert 33, or vice versa.
  • the second subassembly 12-33 is positioned and assembled on the rod by gluing and then the third subassembly is put in place and glued between the rod and the second subassembly as indicated by the arrow F on the figure 6 .
  • This second method of assembly has the advantage that the positioning of the insert front portion 33 relative to the rod 10 and to the entire back 22-partoe comfort layer 31 insert is easier.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

The shoe has a rod (10) and an outer bottom assembly (20), where the rod is surmounted above the assembly. An insert having rigidity characteristics is in contact with a top surface of a contact layer or an outer sole (21), where the outer sole or the contact layer is made up of rubber material. A top layer of a comfort layer (22) is arranged under the rod. The insert includes a front portion (33) with a front lift (35) that is placed along the top layer of the comfort layer, where the comfort layer is made up of viscoelastic material such as polyurethrene foam.

Description

L'invention concerne une chaussure notamment de sport comportant une tige surmontant un semelage externe réalisé selon un profil stratifié en plusieurs couches remplissant des fonctions distinctes.The invention relates to a shoe including a sport comprising a shaft surmounting an outer soleing made according to a laminated profile in several layers fulfilling distinct functions.

Une telle chaussure est connue par le FR 2 685 173 qui concerne une structure modulaire de semelage comportant depuis le bas vers le haut :

  • une couche externe dite de contact, en matériau adhérent tel que du caoutchouc ou similaire, qui est destinée à fournir une bonne accroche au sol et une bonne résistance à l'abrasion,
  • une couche intermédiaire, dit "nerf', disposée directement en contact avec la face supérieure de la couche de contact, qui présente des caractéristiques contrôlées de rigidité en torsion et en flexion,
  • une couche supérieure dite de confort en matériau amortissant qui est disposée directement sous la tige, c'est-à-dire au plus près du pied et qui présente des caractéristiques d'amortissement et/ou d'élasticité vis-à-vis des chocs. Cette dernière couche est assemblée directement sur la tige de la chaussure.
Such a shoe is known by the FR 2,685,173 concerning a modular assembly structure comprising from bottom to top:
  • a so-called contact outer layer, made of an adherent material such as rubber or the like, which is intended to provide a good grip on the ground and good resistance to abrasion,
  • an intermediate layer, called "nerve", arranged directly in contact with the upper face of the contact layer, which exhibits controlled characteristics of torsional and flexural rigidity,
  • a so-called comfort upper layer of cushioning material which is disposed directly under the upper, that is to say closer to the foot and which has damping characteristics and / or elasticity with respect to shocks . This last layer is assembled directly on the upper of the shoe.

Une telle construction de chaussure et surtout de son semelage permet d'obtenir un concept modulable de semelle dans laquelle chaque couche remplit des fonctions bien distinctes, dont la modulation permet de fournir des chaussures répondant aux différents besoins devant être remplis en fonction du sport particulier à la pratique duquel est destinée la chaussure.Such a shoe construction and especially its sole provides a modular concept of sole in which each layer performs very distinct functions, the modulation of which provides shoes to meet the different needs to be filled according to the particular sport to the practice of which the shoe is intended.

Le FR 2 777 429 décrit également une chaussure munie d'un semelage en trois couches dans lequel la couche intermédiaire, dite "nerf", comporte des évidements transversaux de forme particulière destinés à fournir un appui sur et stable de la chaussure, et notamment à fournir un appui en "prise de carre", c'est-à-dire accroche accrue dans les terrains en devers.The FR 2,777,429 also discloses a shoe provided with a three-layered sole in which the intermediate layer, called "nerve", has transverse recesses of particular shape intended to provide a stable and stable support of the shoe, and in particular to provide a support in ""edgecatch", that is to say, increased grip in the land in reverse.

Le but de la présente invention est de proposer une amélioration aux constructions de semelage externe du type évoqué ci-avant.The object of the present invention is to provide an improvement to the outer sole constructions of the type mentioned above.

Un but de la présente invention est notamment de proposer une construction de semelage qui fournisse un effet de relance. Un tel effet de relance est intéressant pour une utilisation en course à pied, mais aussi selon le cas pour une utilisation marche ou autre.An object of the present invention is in particular to provide a sole construction which provides a stimulus effect. Such a stimulus effect is interesting for use in running, but also depending on the case for use walk or otherwise.

Ce ou ces buts sont atteints dans la chaussure selon l'invention, qui est du type comportant une tige surmontant un semelage externe, comportant depuis le bas vers le haut une semelle externe présentant des caractéristiques d'adhérence, un insert présentant des caractéristiques contrôlées de rigidité, et une couche supérieure de confort en matériau amortissant et/ou viscoélastique, par le fait l'insert comporte une partie avant remontant le long de la couche supérieure de confort.This or these objects are achieved in the shoe according to the invention, which is of the type comprising a rod surmounting an outer sole, comprising from the bottom upwards an outer sole having adhesion characteristics, an insert having controlled characteristics of rigidity, and a top layer of comfort damping material and / or viscoelastic, in that the insert has a front portion up along the upper comfort layer.

Lors de la marche, course à pied, l'insert vient par sa partie avant comprimer, ou empêcher la déformation, de la couche de confort dans les phases de flexion du pied, de ce fait de l'énergie supplémentaire est emmagasinée par la couche de confort, cette énergie étant restituée lors de la phase suivante de détente du pied.When walking, running, the insert comes by its front part to compress, or prevent deformation, the comfort layer in the phases of flexion of the foot, because of the additional energy is stored by the layer comfort, this energy being restored during the next phase of relaxation of the foot.

La remontée de l'insert permet donc d'obtenir par la compression de la couche de confort un effet de relance supplémentaire, qui vient s'ajouter à l'effet de relance lié au matériau plus ou moins rigide constituant ledit insert.The rise of the insert thus makes it possible to obtain, by compressing the comfort layer, an additional stimulus effect, which is added to the stimulus effect associated with the more or less rigid material constituting said insert.

De toute façon l'invention sera mieux comprise et d'autres caractéristiques de celle-ci seront mises en évidence à l'aide de la description qui suit en référence au dessin schématique annexé en illustrant à titre d'exemple non limitatif plusieurs modes de réalisation et dans lequel :

  • la figure 1 est une vue en perspective d'une chaussure selon l'invention,
  • la figure 2 est une vue en perspective éclatée de la chaussure de la figure 1,
  • la figure 3 est une vue de dessous en perspective de la chaussure de la figure 1 avant assemblage de la semelle externe,
  • la figure 4 est une vue de dessous en perspective illustrant le montage final du semelage,
  • la figure 5 est une vue similaire à la figure 2 selon un second mode de réalisation,
  • la figure 6 est une vue de dessous en perspective illustrant le montage final du semelage.
In any case the invention will be better understood and other characteristics thereof will be highlighted with the aid of the following description with reference to the attached schematic drawing illustrating by way of nonlimiting example several embodiments. and wherein:
  • the figure 1 is a perspective view of a shoe according to the invention,
  • the figure 2 is an exploded perspective view of the shoe of the figure 1 ,
  • the figure 3 is a perspective bottom view of the shoe from the figure 1 before assembly of the outsole,
  • the figure 4 is a perspective bottom view illustrating the final assembly of the sole assembly,
  • the figure 5 is a view similar to the figure 2 according to a second embodiment,
  • the figure 6 is a perspective bottom view illustrating the final assembly of the sole.

La figure 1 représente une chaussure 1 selon l'invention constituée d'une tige 10 et d'un semelage externe 20 surmonté par ladite tige.The figure 1 represents a shoe 1 according to the invention consisting of a rod 10 and an outer sole 20 surmounted by said rod.

Dans l'exemple représenté la chaussure 1 est une chaussure destinée à la course notamment sur des terrains accidentés et présente donc une tige 10 assez basse et un semelage externe 20 amortissant mais néanmoins assez bas de façon à ne pas porter préjudice à la stabilité du pied sur des terrains accidentés ou en devers.In the example shown, the shoe 1 is a shoe intended for running, particularly on uneven ground, and therefore has a relatively low shaft 10 and an outer sole 20 that dampens but is nevertheless low enough so as not to damage the stability of the foot. on uneven ground or on slopes.

La tige 10 est munie, de façon connue en soi, d'un système de laçage 11 et d'un embout avant 12.The rod 10 is provided, in a manner known per se, with a lacing system 11 and a front end 12.

Le semelage 20 comporte, de façon connue en soi, une semelle externe 21 ou couche de contact en matériau adhérent et résistant à l'usure tel que du caoutchouc, un insert 30 constitué en l'occurrence de deux parties respectivement avant 33 et arrière 31, et d'une couche supérieure dite de confort 22 qui est en matériau amortissant tel que de l'EVA.The sole assembly 20 comprises, in a manner known per se, an outsole 21 or contact layer of adherent and wear-resistant material such as rubber, an insert 30 constituted in this case by two parts respectively before 33 and rear 31 , and a so-called upper comfort layer 22 which is of damping material such as EVA.

Cette couche de confort 22 peut également être en un matériau viscoélastique tel qu'élastomère, mousse PU.This comfort layer 22 may also be made of a viscoelastic material such as elastomer, PU foam.

L'insert 30 est, dans l'exemple représenté, constitué de deux parties respectivement arrière et avant 31 et 33, mais il pourrait bien évidemment être en une seule partie.The insert 30 is, in the example shown, consisting of two respectively rear and front portions 31 and 33, but it could obviously be in one part.

La partie arrière 31 de l'insert n'est pas décrite de façon détaillée. Dans l'exemple représenté cette partie arrière 31 a une forme de voûte s'étendant jusque sur les bords de la semelle externe 21 et définissant des pattes 32 entourant cette semelle externe comme décrit dans le EP 1 447 019 , cette construction étant avantageuse pour l'accroche sur des terrains non plats.The rear portion 31 of the insert is not described in detail. In the example shown, this rear portion 31 has a vault shape extending as far as the edges of the outer sole 21 and defining tabs 32 surrounding this outer sole as described in FIG. EP 1 447 019 , this construction being advantageous for hanging on non-flat terrain.

Dans ce mode de réalisation une cale 50 en matériau amortissant tel qu'EVA, mousse PU est interposée entre la partie arrière 31 de l'insert et la couche de contact 21 (cf. figure 3), cette cale 50 pourrait être supprimée de façon à avoir un contact direct de 31 et 21.In this embodiment a shim 50 of damping material such as EVA, PU foam is interposed between the rear portion 31 of the insert and the contact layer 21 (cf. figure 3 ), this shim 50 could be removed so as to have a direct contact of 31 and 21.

Bien entendu cette partie arrière 31 de l'insert pourrait avoir une toute autre forme/construction en fonction du résultat recherché et/ou type de chaussure.Of course, this rear portion 31 of the insert could have a completely different shape / construction depending on the desired result and / or type of shoe.

L'insert 30 est de préférence en un matériau élastiquement déformable, c'est-à-dire un matériau relativement rigide et ayant des caractéristiques contrôlées de rigidité en torsion et en flexion, et ayant un module d'Young E supérieur à 40MPa.The insert 30 is preferably made of an elastically deformable material, that is to say a relatively rigid material and having controlled torsional and flexural stiffness characteristics, and having a Young's modulus E greater than 40 MPa.

Les matériaux préférés pour cet insert sont :

  • polyuréthane (PUR, TPU) chargé ou non chargé de module d'Young E supérieur à 40MPa,
  • polyamide (PA) chargé ou non chargé,
  • polyéthylène et globalement tous les matériaux synthétiques ayant un module d'Young E supérieur à 40MPa.
The preferred materials for this insert are:
  • polyurethane (PUR, TPU) loaded or not loaded with Young's modulus E greater than 40 MPa,
  • polyamide (PA) loaded or unloaded,
  • polyethylene and generally all synthetic materials having a Young's modulus E greater than 40 MPa.

Les matériaux "composites", par exemple à base de fibre de verre/carbone et résine synthétique ayant un module d'Young E supérieur à 50MPa sont également envisageables."Composite" materials, for example based on fiberglass / carbon and synthetic resin having a Young's modulus E greater than 50 MPa are also conceivable.

On peut également envisager l'utilisation de matériaux métalliques et par exemple d'alliages d'aluminium pour certaines parties de l'insert 30.It is also possible to envisage the use of metallic materials and, for example, aluminum alloys for certain parts of the insert 30.

Pour chaque insert 30 ou partie d'insert 31, 33, l'épaisseur sera fonction du degré d'élasticité souhaité et du module d'Young du matériau choisi.For each insert 30 or insert portion 31, 33, the thickness will be a function of the desired degree of elasticity and the Young's modulus of the selected material.

En fonction des applications recherchées les deux parties d'insert 30, 31 peuvent avoir des raideurs semblables ou différentes, dans ce dernier cas la partie d'insert 30 peut être choisie plus raide que la partie d'insert 31, ou inversement.Depending on the desired applications the two insert parts 30, 31 may have similar or different stiffnesses, in the latter case the insert portion 30 may be chosen steeper than the insert portion 31, or vice versa.

Dans le cas représenté et comme le montrent particulièrement les figures 3 et 4, la partie arrière 31 de l'insert se prolonge vers l'avant par deux branches 32a s'écartant en forme de V et ayant une épaisseur réduite par rapport au reste de ladite partie arrière 31.In the case shown and as shown particularly by figures 3 and 4 , the rear portion 31 of the insert is extended forward by two V-shaped branches 32a deviating and having a reduced thickness relative to the remainder of said rear portion 31.

La partie avant 33 de l'insert comporte également deux branches 34 horizontales ayant des formes légèrement divergentes correspondant à celles des branches 32a de la partie arrière 31 de l'insert. Ces deux branches 34 se prolongent vers l'avant par une remontée verticale 35 qui couvre la couche supérieure de confort 22 et l'embout avant 12 de la tige 10 (cf. figure 1). Dans l'exemple représenté la remontée avant 35 de l'insert s'étend uniquement au bout de la chaussure, ie pas sur les côtés de celle-ci. Selon le cas, elle peut également remonter sur les côtés.The front portion 33 of the insert also has two horizontal branches 34 having slightly divergent shapes corresponding to those of the branches 32a of the rear portion 31 of the insert. These two branches 34 extend forwards by a vertical rise 35 which covers the upper comfort layer 22 and the front end 12 of the rod 10 (cf. figure 1 ). In the example shown, the front lift 35 of the insert extends only at the end of the boot, ie not on the sides thereof. Depending on the case, it can also go up on the sides.

Le fait d'avoir l'insert 30 en deux parties 31, 33 permet de réduire le nombre de moules nécessaires pour la réalisation de celui-ci. En effet par chevauchement des branches 32a et 34 des parties respectivement arrière et avant de l'insert, on peut utiliser un même type d'insert pour plusieurs pointures de chaussure. Il suffit d'avoir un recouvrement fonction de la longueur de la chaussure et de procéder au collage. Les deux parties d'insert 30, 31 peuvent également être reliées ensemble sans chevauchement ou être simplement aboutées.Having the insert 30 in two parts 31, 33 reduces the number of molds necessary for the realization thereof. Indeed by overlapping of the branches 32a and 34 respectively rear and front portions of the insert, one can use the same type of insert for several shoe sizes. It suffices to have a recovery function of the length of the shoe and to proceed to the bonding. The two insert parts 30, 31 can also be connected together without overlapping or simply butted.

Les branches 34 présentent également une épaisseur réduite dans leur zone 34a de recouvrement avec les branches 32a, de façon à éviter toute discontinuité au niveau de l'insert. Enfin les branches 34 présentent dans la zone horizontale un élargissement 34b pouvant être visible sur les cotés du semelage une fois la chaussure montée. La remontée verticale 35 a, dans l'exemple représenté, la forme d'un U vertical inversé reliant les deux branches horizontales 34.The branches 34 also have a reduced thickness in their area 34a of overlap with the branches 32a, so as to avoid any discontinuity in the insert. Finally, the branches 34 have in the horizontal zone an enlargement 34b can be visible on the sides of the sole after the shoe mounted. The vertical lift 35 has, in the example shown, the shape of an inverted vertical U connecting the two horizontal branches 34.

Les figures 1 à 4 illustrent un premier mode de réalisation dans lequel un premier sous ensemble couche de confort 22-partie arrière 31 de l'insert est réalisé par collage (cf. figure 3).The Figures 1 to 4 illustrate a first embodiment in which a first subset comfort layer 22-rear portion 31 of the insert is made by gluing (cf. figure 3 ).

Ce premier sous ensemble est assemblé par collage à la tige 10 munie d'un embout avant 12 et d'une semelle strobel 13, ladite tige étant montée sur une forme (non représentée sur le dessin).This first subassembly is assembled by gluing to the rod 10 provided with a front end 12 and a strobel sole 13, said rod being mounted on a shape (not shown in the drawing).

La partie avant 33 de l'insert est ensuite assemblée, par collage, à la fois à la tige et au premier sous ensemble couche de confort 22-partie arrière 31 de l'insert, comme montré à la figure 4.The front portion 33 of the insert is then assembled, by gluing, both to the stem and to the first subset of the comfort layer 22 - rear portion 31 of the insert, as shown in FIG. figure 4 .

Lors de cet assemblage la partie avant 35 de la partie de l'insert avant 33 emprisonne à la fois la couche de confort 22 et la tige 10.During this assembly, the front portion 35 of the portion of the front insert 33 traps both the comfort layer 22 and the rod 10.

Enfin la semelle externe 21 ou couche de contact est assemblée par collage sur l'ensemble ainsi constitué.Finally the outer sole 21 or contact layer is assembled by gluing on the assembly thus formed.

Avec la construction selon l'invention, la partie avant de renfort 33 vient par sa remontée avant contraindre à la fois la couche de matériau amortissant 22 et la tige 10.With the construction according to the invention, the reinforcing front portion 33 comes by its ascent before forcing both the layer of damping material 22 and the rod 10.

Lors d'un mouvement de flexion de la chaussure se produisant lors d'un mouvement d'appui de la partie avant du pied sur le sol, le matériau constituant la couche de confort 22 est contraint et empêché de se dilater, de ce fait dès la fin du mouvement de flexion, ledit matériau de cette couche 22 tendra à reprendre sa forme initiale et libèrera une énergie qui viendra s'additionner à celle restituée par le matériau élastique constituant la partie avant 33 de l'insert. La raideur de la tige peut également influer sur la restitution d'énergie.During a bending movement of the boot occurring during a bearing movement of the front part of the foot on the ground, the material constituting the comfort layer 22 is constrained and prevented from expanding, thereby the end of the bending movement, said material of this layer 22 will tend to return to its original shape and release an energy that will be added to that restored by the elastic material constituting the front portion 33 of the insert. The stiffness of the rod can also affect the energy release.

Par une construction simple on augmente ainsi de façon importante la quantité d'énergie restituée à la fin du mouvement de flexion, quantité d'énergie qui se traduit par une impulsion supplémentaire appréciable en course.By a simple construction thus significantly increases the amount of energy restored at the end of the bending movement, amount of energy which results in an additional boost appreciable in stroke.

Bien entendu la construction évoquée ci-avant n'est pas limitée à une application course et peut également se révéler forte intéressante dans d'autres domaines et notamment dans une application marche à pied ou autre.Of course the construction mentioned above is not limited to a race application and can also be of great interest in other areas and in particular in a walk or other application.

Les figures 5 et 6 illustrent un autre mode de réalisation de l'invention dans lequel les éléments similaires ou équivalents seront désignés par les mêmes références.The figures 5 and 6 illustrate another embodiment of the invention in which similar or equivalent elements will be designated by the same references.

En fait dans ce second mode de réalisation, la chaussure comporte exactement les mêmes éléments, la seule différence résidant dans le mode d'assemblage de ceux-ci.In fact in this second embodiment, the shoe has exactly the same elements, the only difference residing in the assembly mode thereof.

Dans ce cas la partie avant 33 de l'insert constitue un sous ensemble distinct avec l'embout avant 12 de la tige de la chaussure.In this case the front portion 33 of the insert is a separate subassembly with the front end 12 of the upper of the shoe.

Ce sous ensemble peut être réalisé par collage de ces deux éléments ou encore par surmoulage de l'embout avant 12 sur la partie avant de l'insert 33, ou inversement.This subassembly can be made by bonding these two elements or by overmolding the front end 12 on the front portion of the insert 33, or vice versa.

Dans ce second mode de réalisation les étapes d'assemblage sont légèrement différentes. En effet comme montré sur la figure 5, on réalise tout d'abord trois sous ensembles :

  • un premier sous ensemble constitué par la tige 10 montée sur forme mais sans embout avant,
  • un second sous ensemble constitué par l'embout avant 12 et la partie avant d'insert 33,
  • et un troisième sous ensemble constitué par la couche de confort 22 et la partie arrière 31 d'insert.
In this second embodiment, the assembly steps are slightly different. Indeed as shown on the figure 5 , we first realize three subsets:
  • a first subassembly constituted by the rod 10 mounted on shape but without a front end,
  • a second subassembly constituted by the front end piece 12 and the front insert part 33,
  • and a third subassembly constituted by the comfort layer 22 and the rear portion 31 of insert.

Le second sous ensemble 12-33 est positionné et assemblé sur la tige par collage et ensuite le troisième sous ensemble est mis en place et collé entre la tige et le second sous ensemble comme indiqué par la flèche F sur la figure 6.The second subassembly 12-33 is positioned and assembled on the rod by gluing and then the third subassembly is put in place and glued between the rod and the second subassembly as indicated by the arrow F on the figure 6 .

Ce second mode d'assemblage présente l'avantage que le positionnement de la partie avant d'insert 33 par rapport à la tige 10 et à l'ensemble couche de confort 22-partoe arrière 31 d'insert est plus facile.This second method of assembly has the advantage that the positioning of the insert front portion 33 relative to the rod 10 and to the entire back 22-partoe comfort layer 31 insert is easier.

Ensuite la semelle externe 21 est collée comme représentée sur la figure 4.Then the outer sole 21 is glued as shown on the figure 4 .

Bien entendu la présente invention n'est pas limitée aux modes de réalisation décrits ci-avant à titre d'exemple non limitatifs mais en englobe tous les modes de réalisation similaires ou équivalents.Of course, the present invention is not limited to the embodiments described above by way of non-limiting example but encompasses all similar or equivalent embodiments.

Claims (10)

Chaussure comportant une tige (10) et un semelage externe (20), la tige (10) surmontant le semelage externe (20), le semelage externe (20) comportant depuis le bas vers le haut : - une semelle externe (21) ou couche de contact en matériau adhérent, - un insert (30) présentant des caractéristiques de rigidité disposé au moins en partie en contact avec la face supérieure de la couche de contact (21), - une couche supérieure dite de confort (22), disposée directement sous la tige, caractérisée en ce que l'insert (30) comporte une partie avant (33) présentant une remontée (35) le long de la couche supérieure de confort (22).Shoe comprising a rod (10) and an outer sole (20), the upper (10) surmounting the outer sole (20), the outer sole (20) comprising from bottom to top: an outer sole (21) or contact layer of adherent material, an insert (30) having rigidity characteristics arranged at least partly in contact with the upper face of the contact layer (21), an upper comfort layer (22) disposed directly under the stem, characterized in that the insert (30) has a front portion (33) having a lift (35) along the upper comfort layer (22). Chaussure selon la revendication 1, caractérisée en ce que la remontée avant (35) de l'insert remonte également le long de la tige (10) de la chaussure.Shoe according to claim 1, characterized in that the front lift (35) of the insert also rises along the shaft (10) of the shoe. Chaussure selon l'une quelconque des revendications 1 ou 2, caractérisée en ce que la remontée avant (35) de la partie de l'insert avant (33) s'étend uniquement au bout de la chaussure.Shoe according to any one of claims 1 or 2, characterized in that the front lift (35) of the portion of the front insert (33) extends only at the end of the shoe. Chaussure selon l'une quelconque des revendications 1 à 3, caractérisée en ce que l'insert (30) est en deux parties, respectivement avant (33) et arrière (31).Shoe according to any one of claims 1 to 3, characterized in that the insert (30) is in two parts, respectively before (33) and rear (31). Chaussure selon l'une des revendications 1 à 3, caractérisée en ce que la partie avant de l'insert est plus raide que la partie d'insert arrière (31).Shoe according to one of claims 1 to 3, characterized in that the front portion of the insert is steeper than the rear insert portion (31). Chaussure selon l'une quelconque des revendications 1 à 3, caractérisée en ce que la partie arrière (31) de l'insert est plus raide que la partie avant (30) de l'insert.Shoe according to any one of claims 1 to 3, characterized in that the rear portion (31) of the insert is steeper than the front portion (30) of the insert. Chaussure selon l'une quelconque des revendications 2 à 6, caractérisée en ce que la couche de confort est en un matériau amortissant ou viscoélastique.Shoe according to any one of claims 2 to 6, characterized in that the comfort layer is of a damping or viscoelastic material. Chaussure selon la revendication 1 à 7, caractérisée en ce que la tige (10) comporte à son extrémité avant un embout avant (12).Shoe according to claim 1 to 7, characterized in that the rod (10) has at its front end a front end (12). Chaussure selon la revendication 8, caractérisée en ce que l'embout avant (12) et la partie avant (33) de l'insert forment un sous ensemble.Shoe according to claim 8, characterized in that the front end (12) and the front portion (33) of the insert form a subassembly. Chaussure selon la revendication 9, caractérisée en ce que l'embout avant (12) est surmoulé sur la partie avant (33) de l'insert.Shoe according to claim 9, characterized in that the front end (12) is overmolded on the front portion (33) of the insert.
EP07005560A 2007-03-19 2007-03-19 Shoe and its bottom assembly Withdrawn EP1972224A1 (en)

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EP07005560A EP1972224A1 (en) 2007-03-19 2007-03-19 Shoe and its bottom assembly

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EP07005560A EP1972224A1 (en) 2007-03-19 2007-03-19 Shoe and its bottom assembly

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2685173A1 (en) 1991-12-24 1993-06-25 Salomon Sa MULTILAYER SPORT SHOE SOLE.
EP0887027A1 (en) * 1997-06-27 1998-12-30 Salomon S.A. Multilayer sole coupled to a reinforcement of the shoe upper
FR2777429A1 (en) 1998-04-21 1999-10-22 Salomon Sa Shoe sole with deformable structure
EP1428444A1 (en) * 2002-12-11 2004-06-16 Salomon S.A. Climbing shoe
EP1447019A1 (en) 2003-02-14 2004-08-18 Salomon S.A. Shoe sole
EP1607015A1 (en) * 2004-06-01 2005-12-21 Wolverine World Wide, Inc. Footwear construction and related method of manufacture
WO2005120275A2 (en) * 2004-06-08 2005-12-22 Keen Llc Footwear with multi-piece midsole
FR2898252A1 (en) * 2006-03-07 2007-09-14 Salomon Sa Sports shoe for e.g. running, has outer bottom with outer sole or contact layer made of adherent material, where insert with front and rear part has rigid characteristics arranged partly in contact with upper surface of sole

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2685173A1 (en) 1991-12-24 1993-06-25 Salomon Sa MULTILAYER SPORT SHOE SOLE.
EP0887027A1 (en) * 1997-06-27 1998-12-30 Salomon S.A. Multilayer sole coupled to a reinforcement of the shoe upper
FR2777429A1 (en) 1998-04-21 1999-10-22 Salomon Sa Shoe sole with deformable structure
EP1428444A1 (en) * 2002-12-11 2004-06-16 Salomon S.A. Climbing shoe
EP1447019A1 (en) 2003-02-14 2004-08-18 Salomon S.A. Shoe sole
EP1607015A1 (en) * 2004-06-01 2005-12-21 Wolverine World Wide, Inc. Footwear construction and related method of manufacture
WO2005120275A2 (en) * 2004-06-08 2005-12-22 Keen Llc Footwear with multi-piece midsole
FR2898252A1 (en) * 2006-03-07 2007-09-14 Salomon Sa Sports shoe for e.g. running, has outer bottom with outer sole or contact layer made of adherent material, where insert with front and rear part has rigid characteristics arranged partly in contact with upper surface of sole

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