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EP2922436A1 - Shoe sole - Google Patents

Shoe sole

Info

Publication number
EP2922436A1
EP2922436A1 EP13808090.8A EP13808090A EP2922436A1 EP 2922436 A1 EP2922436 A1 EP 2922436A1 EP 13808090 A EP13808090 A EP 13808090A EP 2922436 A1 EP2922436 A1 EP 2922436A1
Authority
EP
European Patent Office
Prior art keywords
network
walls
shoe sole
recesses
stiffening
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP13808090.8A
Other languages
German (de)
French (fr)
Other versions
EP2922436B1 (en
Inventor
Guillaume Caulliez
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.)
Decathlon SE
Original Assignee
Decathlon SE
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 Decathlon SE filed Critical Decathlon SE
Publication of EP2922436A1 publication Critical patent/EP2922436A1/en
Application granted granted Critical
Publication of EP2922436B1 publication Critical patent/EP2922436B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B1/00—Footwear characterised by the material
    • A43B1/0009—Footwear characterised by the material made at least partially of alveolar or honeycomb material
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/18—Resilient soles
    • A43B13/181—Resiliency achieved by the structure of the sole
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/18—Resilient soles
    • A43B13/181—Resiliency achieved by the structure of the sole
    • A43B13/186—Differential cushioning region, e.g. cushioning located under the ball of the foot
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/1415—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot
    • A43B7/144—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form characterised by the location under the foot situated under the heel, i.e. the calcaneus bone

Definitions

  • the invention relates to a sole, in particular an intermediate sole, for footwear, in particular for walking shoes worn on a daily basis, said soleplate being able to be produced by molding a synthetic material, for example based on an elastomer or polychloride. of vinyl (PVC).
  • a synthetic material for example based on an elastomer or polychloride. of vinyl (PVC).
  • document FR-2 800 581 discloses a one-piece soleplate having a base surface on which are formed cells delimited by radial walls interconnected with each other. in order to form a network for stiffening said sole.
  • such a stiffening network also provides a compression stiffness that does not provide sufficient cushioning foot impacts on the ground to ensure the walking comfort of the wearer.
  • the document FR-2 800 581 provides to have on the stiffening network a sockliner for absorbing shocks during ground support. It is also known to equip a sole with inserts to improve the damping characteristics.
  • the document CN-2 291 809 proposes a damping insert such as an absorbent gel or an air cushion which is arranged in a housing formed in a stiffening network of a soleplate to combine rigidity and cushioning.
  • Insole damping inserts are also known which are formed from an elastomeric material, such as ethylene-vinyl acetate (EVA) and / or polyurethane inserts.
  • EVA ethylene-vinyl acetate
  • the material used for making such inserts does not always meet the criteria of comfort of the sole, especially with respect to the weight of said sole and / or the durability of the cushioning.
  • the EVA is a very light and absorbent material, but not very durable and expensive, while the polyurethane has a greater resistance to use but a significant weight.
  • the invention aims to improve the prior art by providing in particular a shoe sole having an optimal and durable compromise between rigidity and cushioning to improve the walking comfort of the wearer, said sole being furthermore easy to manufacture.
  • the invention provides a shoe sole having a base surface on which are formed cells which are delimited by radial walls coming from said surface, said walls being connected together to form a stiffening network of said soleplate.
  • said stiffening network having a zone in which said walls are separated to make pads each formed by a wall portion which is delimited by recesses, said pads being arranged to be deformable to create a damping sub-network ground impacts.
  • FIG. 1 is a top view of a shoe sole according to one embodiment
  • FIGS. 2 and 3 are detailed representations, respectively in perspective from above and in longitudinal section, of a heel portion of the sole of FIG. 1, showing more particularly the formation of the damping sub-network in the stiffening network of said sole.
  • the soleplate may be made by molding a synthetic material that is resistant to wear and abrasion, for example based on an elastomer, such as rubber, or based on PVC.
  • the sole has a lower surface 1 intended for ground support and which may have a structure facilitating adhesion, for example being notched by means of different sets of transverse and longitudinal grooves of variable depth, in particular according to the use of the shoe.
  • the lower surface 1 may be covered with a layer of adhesion-improving and / or wear-limiting material of the sole, such as a thermoplastic polyurethane (TPU) layer.
  • TPU thermoplastic polyurethane
  • the sole has a base surface 2 comprising a stiffening network of said sole which is also arranged to limit the weight of said sole.
  • the stiffening network comprises radial walls 3 issuing from the base surface 2 which extend upwards opposite the bottom surface 1, said walls being connected together to delimit cells 4.
  • the walls 3 are made of the same material as that of the base surface 2, in particular being derived from the molding of the soleplate.
  • the stiffening network extends over all or part of the base surface 2, the upper edges of the cells 4 forming a bearing surface of the foot on which may be disposed an internal insole for reinforcing one or more particular properties of said sole, such as the absorption of moisture or the reduction of friction.
  • the stiffening network is formed at least on a heel portion of the base surface 2 which is the most stressed during the impacts of the foot on the ground, in particular to stabilize the back of the wearer, the thickness of the walls 3 may depend on the degree of stiffening desired which is in particular a function of the use of the shoe.
  • the stiffening network extends from the heel portion to an arch portion of the base surface 2 so as to ensure rigidity in both torsion and flexion of the soleplate without compromising the mobility of the sole. the forefoot which is necessary for the propulsion of the foot during the cycle of walking.
  • the radial walls 3 may have different heights so as to form a relief corresponding to the morphology of the sole of the foot in order to give the support surface of the sole anatomical geometry optimizing walking comfort.
  • a peripheral edge 5 extends around the periphery of the base surface 2 so as to surround the stiffening network, said network comprising peripheral cells 4 which are associated with said edge via lateral radial walls 3a.
  • the peripheral edge 5 may comprise an upper extension 6 projecting from said network and which is rounded outwardly in particular to facilitate the mounting of the shoe upper.
  • each cell 4 is delimited by six walls 3 arranged in a hexagonal geometry, said walls being connected by a vertex 7 of said cell.
  • the stiffening network extends over the base surface 2 in a honeycomb configuration allowing an optimal ratio between lightness and strength of the sole, said network limiting the weight of the sole while ensuring its rigidity in several directions of the base surface 2 for better stability.
  • the stiffening network may have a set of cells 4 of different geometries, for example by including a different number of walls 3 and / or being connected in a different configuration.
  • each side wall 3a connects a peripheral cell 4 to the peripheral edge 5 extending between a vertex 7 of said cell and said edge so as to have a different direction from those of the walls 3 of said cell which are connected by said Mountain peak.
  • each radial wall 3 extends from an apex 7 at an angle of 120 ° with the adjacent walls 3.
  • the base surface 2 has a forefoot part comprising a set of corrugated ribs 8 extending transversely between the peripheral edge and parallel to each other. to provide flexibility to said forefoot portion.
  • the stiffening network and the set of ribs 8 are thus arranged on the base surface 2 so as to promote the wrapping and unwinding of the foot during the ground support, said set of ribs facilitating the flexion of the joint metatarsophalangeal foot.
  • the radial walls 3 are separated in one or more areas of the said network where increased cushioning is necessary, said disconnection allowing the realization of pads 9 each formed by a portion of wall 3 and arranged to be deformed under the weight of the carrier to create a sub-network damping impacts of the foot on the ground.
  • the damping sub-network is made in one piece with the sole, not requiring any particular assembly, in order to guarantee damping properties of said sole more homogeneous and more durable.
  • the stiffening network may comprise a housing formed in one or more zones to be softened and in which the sub-network damping is reported, said subarray can be made from a material having a hardness different from the material of the sole.
  • Each wall portion 3 forming a stud 9 is delimited by recesses 10 which can be made during or after the molding of the sole, said recesses allowing a bending of the pads 9 independently of each other.
  • the recesses 10 are formed at a junction between at least two radial walls 3 to promote the deformation of the damping sub-network.
  • the damping sub-network may be formed in the zones undergoing the maximum foot pressures, in particular the ground footing zones where optimal shock absorption is required, said sub-network being able to be located in the part of the foot. heel and / or in the forefoot part.
  • the damping subarray is formed in an inner zone of the stiffening network, said sub-network being connected to the peripheral edge 5 via the side walls 3a.
  • this arrangement allows to maintain around the zone of walls 3 uncoupled stiffness of the sole necessary to maintain the dynamism of the supports.
  • the damping subarray is formed in the center of the heel portion by the separation of at least one wall 3 of six hexagonal cells 4 of the stiffening network.
  • the recesses 10 are formed at a vertex 7 common to at least two cells 4 in particular to ensure the continuity of the damping subarray in the stiffening network.
  • the cells 4 disengaged from the damping subarray comprise at least two recesses 10 formed on a vertex 7 respectively.
  • the two recesses 10 are formed on respectively two vertices 7 adjacent to one another. that a stud 9 is formed in a wall 3 of a cell 4.
  • the disconnected cells 4 may comprise a number of pads 9 different according to their arrangement in the damping sub-network.
  • the damping sub-network comprises a central cell 4a and five peripheral cells 4b-4f, said peripheral cells being connected to the peripheral edge 5 by respectively at least two side walls 3a.
  • the central cell 4a is surrounded by respectively two peripheral cells before 4b, 4c and rear 4d, 4e, the fifth peripheral cell 4f being adjacent to the two rear cells 4d, 4e, the opposite of said central cell.
  • the separation of the walls 3 is such that the softening of the stiffening network gradually increases towards the inside of said network.
  • a recess 10 is formed in each of the vertices 7 of the central recess 4a so that said central recess forms six studs 9, the peripheral cells before 4b, 4c and rear 4d, 4e having three studs 9 which are each delimited in particular by a recess 10 formed in a vertex 7 common with said central cavity.
  • the rear peripheral cells 4d, 4e each comprise a fourth pad 9 which is common with the fifth peripheral cell 4f.
  • the damping sub-network comprises pads 9 oriented in at least two different directions so that the deflection of said pads can be made according to the direction of the support force to adjust the cushioning of the sole.
  • the pads 9 are arranged at 120 ° from each other, said pads then having three different orientations.
  • the size of the damping sub-network and / or the number of pads 9 may vary depending on the physiological characteristics of the user, such as his sex or weight.
  • the pads 9 may be formed so as to have an inclination with respect to the base surface 2 in one or more directions, in particular according to their arrangement within the damping sub-network, said pads being able to be inclined towards the front or towards the rear of the sole to promote their deformation during the support of the foot.
  • the recesses 10 extend over the entire height of the walls 3 to obtain maximum deflection of the pads 9 in the direction of the base surface 2.
  • the recesses 10 may extend over only one part of the height of the walls 3 to form a connecting bridge at the base of the pads 9 to limit their sagging and get a more gradual cushioning.
  • the connecting bridges at the base of the pads 9 may be derived from the molding of the sole.
  • the partial recesses may also be made by means of a material cast in the soleplate which may be identical to the material of said sole or be different, such as EVA or polyurethane.
  • the recesses 10 may be made so as to form studs 9 having a tapered geometry upwards, said pads may be in particular trapezoidal or triangular so as to increase the softening of the stiffening network, the geometry of said pads may be arranged according to the use of the shoe, in particular according to the sport practice for which the cushioning of the sole must be adapted to the nature of the terrain of evolution and mode of travel.
  • the pads 9 may comprise a greater or lesser upper bearing surface, which is also adapted to the use of the boot and / or to the user, said pads having an identical or different section between them which can be especially triangular, oval or hexagonal.
  • the stiffening network may comprise cells 4 of different sizes, the cells 4 of the damping sub-network may have a larger dimension than the other cells 4.
  • the size of the cells 4 may gradually decrease towards the peripheral edge 5, so that the damping sub-network comprises smaller peripheral cells 4 than the other cells 4 of said sub-network so as to increase the inward damping of said sub-network while maintaining the peripheral stiffness.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

The invention relates to a shoe sole comprising a base surface (2) whereon alveolar shapes (4) are formed, that are defined by radial walls (3) projecting from the surface, said walls being interconnected in order to form a network for rigidifying said sole, said rigidifying network comprising an area wherein said walls are interrupted in order to form segments (9) that are each formed by a portion of the wall (3) defined by recesses (10), said segments being arranged such that they are able to deform in order to create a sub-network for shock absorbency when contact is made with the ground.

Description

Semelle de chaussure  Sole of a shoe
L'invention concerne une semelle, en particulier une semelle intermédiaire, pour chaussure, notamment pour des chaussures de marche portées au quotidien, ladite semelle pouvant être réalisée par moulage d'un matériau synthétique, par exemple à base d'un élastomère ou de polychlorure de vinyle (PVC). The invention relates to a sole, in particular an intermediate sole, for footwear, in particular for walking shoes worn on a daily basis, said soleplate being able to be produced by molding a synthetic material, for example based on an elastomer or polychloride. of vinyl (PVC).
Pour assurer la rigidité d'une telle semelle, en torsion et/ou en flexion, on connaît du document FR-2 800 581 une semelle monobloc présentant une surface de base sur laquelle sont formées des alvéoles délimitées par des parois radiales reliées entre elles de manière à former un réseau de rigidification de ladite semelle. To ensure the rigidity of such a sole, in torsion and / or in flexion, document FR-2 800 581 discloses a one-piece soleplate having a base surface on which are formed cells delimited by radial walls interconnected with each other. in order to form a network for stiffening said sole.
Toutefois, un tel réseau de rigidification apporte également une rigidité en compression qui ne confère pas un amorti suffisant des impacts du pied au sol pour garantir le confort de marche du porteur. However, such a stiffening network also provides a compression stiffness that does not provide sufficient cushioning foot impacts on the ground to ensure the walking comfort of the wearer.
Pour résoudre ce problème d'amortissement, le document FR-2 800 581 prévoit de disposer sur le réseau de rigidification une semelle de propreté permettant l'absorption des chocs lors des appuis au sol. Il est également connu d'équiper une semelle avec des inserts permettant d'améliorer les caractéristiques d'amortissement. To solve this problem of damping, the document FR-2 800 581 provides to have on the stiffening network a sockliner for absorbing shocks during ground support. It is also known to equip a sole with inserts to improve the damping characteristics.
En particulier, le document CN-2 291 809 propose un insert d'amortissement tel un gel absorbant ou un coussin d'air qui est disposé dans un logement formé dans un réseau de rigidification d'une semelle pour combiner rigidité et amorti. On connaît également des inserts d'amortissement pour semelle qui sont formés à partir d'un matériau élastomère, tels que des inserts de mousse d'éthylène-acétate de vinyle (EVA) et/ou de polyuréthane. In particular, the document CN-2 291 809 proposes a damping insert such as an absorbent gel or an air cushion which is arranged in a housing formed in a stiffening network of a soleplate to combine rigidity and cushioning. Insole damping inserts are also known which are formed from an elastomeric material, such as ethylene-vinyl acetate (EVA) and / or polyurethane inserts.
Toutefois, ces solutions rapportées dans la semelle ne donnent pas entière satisfaction en ce que l'ajout d'un insert d'amortissement augmente les coûts et le temps de fabrication de la semelle, notamment du fait des difficultés d'assemblage dudit insert à la semelle. However, these solutions reported in the soleplate are not entirely satisfactory in that the addition of a damping insert increases the costs and the manufacturing time of the sole, particularly because of the difficulties of assembling said insert to the sole.
En outre, le matériau utilisé pour la réalisation de tels inserts ne répond pas toujours aux critères de confort de la semelle, notamment relativement au poids de ladite semelle et/ou à la durabilité de l'amorti. En particulier, l'EVA est un matériau très léger et absorbant, mais peu durable et coûteux, alors que le polyuréthane présente une plus grande résistance à l'usage mais un poids important. In addition, the material used for making such inserts does not always meet the criteria of comfort of the sole, especially with respect to the weight of said sole and / or the durability of the cushioning. In particular, the EVA is a very light and absorbent material, but not very durable and expensive, while the polyurethane has a greater resistance to use but a significant weight.
L'invention vise à perfectionner l'art antérieur en proposant notamment une semelle pour chaussure présentant un compromis optimal et durable entre rigidité et amorti afin d'améliorer le confort de marche du porteur, ladite semelle étant en outre simple de fabrication. The invention aims to improve the prior art by providing in particular a shoe sole having an optimal and durable compromise between rigidity and cushioning to improve the walking comfort of the wearer, said sole being furthermore easy to manufacture.
A cet effet, l'invention propose une semelle de chaussure présentant une surface de base sur laquelle sont formées des alvéoles qui sont délimitées par des parois radiales issues de ladite surface, lesdites parois étant reliées entre elles pour former un réseau de rigidification de ladite semelle, ledit réseau de rigidification présentant une zone dans laquelle lesdites parois sont désolidarisées pour réaliser des plots formés chacun par une portion de paroi qui est délimitée par des évidements, lesdits plots étant agencés pour pouvoir se déformer afin de créer un sous-réseau d'amortissement des impacts au sol. For this purpose, the invention provides a shoe sole having a base surface on which are formed cells which are delimited by radial walls coming from said surface, said walls being connected together to form a stiffening network of said soleplate. , said stiffening network having a zone in which said walls are separated to make pads each formed by a wall portion which is delimited by recesses, said pads being arranged to be deformable to create a damping sub-network ground impacts.
D'autres particularités et avantages de l'invention apparaîtront dans la description qui suit, faite en référence aux figures annexées, dans lesquelles : Other features and advantages of the invention will appear in the description which follows, made with reference to the appended figures, in which:
- la figure 1 est une vue de dessus d'une semelle de chaussure selon un mode de réalisation ;  - Figure 1 is a top view of a shoe sole according to one embodiment;
- les figures 2 et 3 sont des représentations de détail, respectivement en perspective de dessus et en coupe longitudinale, d'une partie de talon de la semelle de la figure 1 , montrant plus particulièrement la formation du sous-réseau d'amortissement dans le réseau de rigidification de ladite semelle. FIGS. 2 and 3 are detailed representations, respectively in perspective from above and in longitudinal section, of a heel portion of the sole of FIG. 1, showing more particularly the formation of the damping sub-network in the stiffening network of said sole.
En relation avec ces figures, on décrit ci-dessous une semelle pour chaussure, notamment pour chaussures de marche pouvant être portées au quotidien. En particulier, la semelle peut être réalisée par moulage d'un matériau synthétique qui est résistant à l'usure et à l'abrasion, par exemple à base d'un élastomère, tel que du caoutchouc, ou à base de PVC. La semelle présente une surface inférieure 1 destinée à l'appui au sol et qui peut présenter une structure facilitant l'adhérence, par exemple en étant crantée au moyen de différents jeux de rainures transversales et longitudinales de profondeur variable, notamment selon l'usage de la chaussure. En variante, la surface inférieure 1 peut être recouverte d'une couche de matériau améliorant l'adhérence et/ou limitant l'usure de la semelle, telle qu'une couche de polyuréthanne thermoplastique (TPU). In connection with these figures, there is described below a shoe sole, especially for walking shoes that can be worn daily. In particular, the soleplate may be made by molding a synthetic material that is resistant to wear and abrasion, for example based on an elastomer, such as rubber, or based on PVC. The sole has a lower surface 1 intended for ground support and which may have a structure facilitating adhesion, for example being notched by means of different sets of transverse and longitudinal grooves of variable depth, in particular according to the use of the shoe. Alternatively, the lower surface 1 may be covered with a layer of adhesion-improving and / or wear-limiting material of the sole, such as a thermoplastic polyurethane (TPU) layer.
A l'opposée de la surface inférieure, la semelle présente une surface de base 2 comprenant un réseau de rigidification de ladite semelle qui est également agencé pour limiter le poids de ladite semelle. A cet effet, le réseau de rigidification comprend des parois radiales 3 issues de la surface de base 2 qui s'étendent vers le haut à l'opposée de la surface inférieure 1 , lesdites parois étant reliées entre elles pour délimiter des alvéoles 4. En particulier, les parois 3 sont réalisées avec le même matériau que celui de la surface de base 2, notamment étant issues du moulage de la semelle. At the opposite of the lower surface, the sole has a base surface 2 comprising a stiffening network of said sole which is also arranged to limit the weight of said sole. For this purpose, the stiffening network comprises radial walls 3 issuing from the base surface 2 which extend upwards opposite the bottom surface 1, said walls being connected together to delimit cells 4. In particular, the walls 3 are made of the same material as that of the base surface 2, in particular being derived from the molding of the soleplate.
Le réseau de rigidification s'étend sur toute ou partie de la surface de base 2, les bords supérieurs des alvéoles 4 formant une surface d'appui du pied sur laquelle peut être disposée une semelle interne de propreté pour renforcer une ou plusieurs propriétés particulières de ladite semelle, telles que l'absorption de l'humidité ou la réduction des frottements. Le réseau de rigidification est formé au moins sur une partie de talon de la surface de base 2 qui est la plus sollicitée lors des impacts du pied au sol, afin notamment de stabiliser l'arrière-pied du porteur, l'épaisseur des parois 3 pouvant dépendre du degré de rigidification souhaité qui est notamment fonction de l'utilisation de la chaussure. The stiffening network extends over all or part of the base surface 2, the upper edges of the cells 4 forming a bearing surface of the foot on which may be disposed an internal insole for reinforcing one or more particular properties of said sole, such as the absorption of moisture or the reduction of friction. The stiffening network is formed at least on a heel portion of the base surface 2 which is the most stressed during the impacts of the foot on the ground, in particular to stabilize the back of the wearer, the thickness of the walls 3 may depend on the degree of stiffening desired which is in particular a function of the use of the shoe.
Selon la figure 1 , le réseau de rigidification s'étend de la partie de talon à une partie de voûte de la surface de base 2 de manière à assurer une rigidité à la fois en torsion et en flexion de la semelle sans compromettre la mobilité de l'avant-pied qui est nécessaire à la propulsion du pied lors du cycle de la marche. According to FIG. 1, the stiffening network extends from the heel portion to an arch portion of the base surface 2 so as to ensure rigidity in both torsion and flexion of the soleplate without compromising the mobility of the sole. the forefoot which is necessary for the propulsion of the foot during the cycle of walking.
En outre, les parois radiales 3 peuvent présenter des hauteurs différentes de manière à former un relief correspondant à la morphologie de la plante du pied afin de conférer à la surface d'appui de la semelle une géométrie anatomique optimisant le confort de marche. In addition, the radial walls 3 may have different heights so as to form a relief corresponding to the morphology of the sole of the foot in order to give the support surface of the sole anatomical geometry optimizing walking comfort.
Un bord périphérique 5 s'étend sur le pourtour de la surface de base 2 de manière à entourer le réseau de rigidification, ledit réseau comprenant des alvéoles 4 périphériques qui sont associées audit bord par l'intermédiaire de parois radiales latérales 3a. Le bord périphérique 5 peut comprendre une extension supérieure 6 en saillie dudit réseau et qui est arrondie vers l'extérieur notamment pour faciliter le montage de la tige de chaussure. Selon le mode de réalisation représenté, chaque alvéole 4 est délimitée par six parois 3 agencées suivant une géométrie hexagonale, lesdites parois étant reliées par un sommet 7 de ladite alvéole. Le réseau de rigidification s'étend sur la surface de base 2 selon une configuration en nid d'abeilles permettant un rapport optimal entre légèreté et résistance de la semelle, ledit réseau limitant le poids de la semelle tout en assurant sa rigidité dans plusieurs directions de la surface de base 2 pour une meilleure stabilité. Selon d'autres réalisations, le réseau de rigidification peut présenter un ensemble d'alvéoles 4 de géométries différentes, par exemple en comprenant un nombre différent de parois 3 et/ou en étant reliées selon une configuration différente. A peripheral edge 5 extends around the periphery of the base surface 2 so as to surround the stiffening network, said network comprising peripheral cells 4 which are associated with said edge via lateral radial walls 3a. The peripheral edge 5 may comprise an upper extension 6 projecting from said network and which is rounded outwardly in particular to facilitate the mounting of the shoe upper. According to the embodiment shown, each cell 4 is delimited by six walls 3 arranged in a hexagonal geometry, said walls being connected by a vertex 7 of said cell. The stiffening network extends over the base surface 2 in a honeycomb configuration allowing an optimal ratio between lightness and strength of the sole, said network limiting the weight of the sole while ensuring its rigidity in several directions of the base surface 2 for better stability. According to other embodiments, the stiffening network may have a set of cells 4 of different geometries, for example by including a different number of walls 3 and / or being connected in a different configuration.
En outre, chaque paroi latérale 3a relie une alvéole 4 périphérique au bord périphérique 5 en s'étendant entre un sommet 7 de ladite alvéole et ledit bord de manière à présenter une direction différente de celles des parois 3 de ladite alvéole qui sont reliées par ledit sommet. En particulier, chaque paroi radiale 3 s'étend depuis un sommet 7 en formant un angle de 120° avec les parois 3 adjacentes. In addition, each side wall 3a connects a peripheral cell 4 to the peripheral edge 5 extending between a vertex 7 of said cell and said edge so as to have a different direction from those of the walls 3 of said cell which are connected by said Mountain peak. In particular, each radial wall 3 extends from an apex 7 at an angle of 120 ° with the adjacent walls 3.
Afin de favoriser le mouvement du pied lors de l'appui au sol, la surface de base 2 présente une partie d'avant-pied comprenant un jeu de nervures 8 ondulées s'étendant transversalement entre le bord périphérique et parallèlement les unes aux autres de manière à apporter une certaine souplesse à ladite partie d'avant-pied. Le réseau de rigidification et le jeu de nervures 8 sont ainsi agencés sur la surface de base 2 de manière à favoriser l'enroulé et le déroulé du pied lors de l'appui au sol, ledit jeu de nervures facilitant la flexion de l'articulation métatarso-phalangienne dudit pied. In order to promote the movement of the foot during the support on the ground, the base surface 2 has a forefoot part comprising a set of corrugated ribs 8 extending transversely between the peripheral edge and parallel to each other. to provide flexibility to said forefoot portion. The stiffening network and the set of ribs 8 are thus arranged on the base surface 2 so as to promote the wrapping and unwinding of the foot during the ground support, said set of ribs facilitating the flexion of the joint metatarsophalangeal foot.
Pour un compromis optimal entre rigidité et amorti de la semelle au niveau du réseau de rigidification, les parois radiales 3 sont désolidarisées dans une ou des zones dudit réseau où un amorti accru est nécessaire, ladite désolidarisation permettant la réalisation de plots 9 formés chacun par une portion de paroi 3 et agencés pour pouvoir se déformer sous le poids du porteur afin de créer un sous-réseau d'amortissement des impacts du pied au sol. Ainsi, le sous-réseau d'amortissement est réalisé en une seule pièce avec la semelle, ne nécessitant pas d'assemblage particulier, afin de garantir des propriétés d'amortissement de ladite semelle plus homogènes et plus durables. For an optimal compromise between stiffness and cushioning of the soleplate at the level of the stiffening network, the radial walls 3 are separated in one or more areas of the said network where increased cushioning is necessary, said disconnection allowing the realization of pads 9 each formed by a portion of wall 3 and arranged to be deformed under the weight of the carrier to create a sub-network damping impacts of the foot on the ground. Thus, the damping sub-network is made in one piece with the sole, not requiring any particular assembly, in order to guarantee damping properties of said sole more homogeneous and more durable.
En variante, le réseau de rigidification peut comprendre un logement formé dans une ou plusieurs zones à assouplir et dans lequel le sous-réseau d'amortissement est rapporté, ledit sous-réseau pouvant être réalisé à partir d'un matériau présentant une dureté différente du matériau de la semelle. As a variant, the stiffening network may comprise a housing formed in one or more zones to be softened and in which the sub-network damping is reported, said subarray can be made from a material having a hardness different from the material of the sole.
Chaque portion de paroi 3 formant un plot 9 est délimitée par des évidements 10 qui peuvent être réalisés lors ou après le moulage de la semelle, lesdits évidements permettant un fléchissement des plots 9 indépendamment des uns des autres. De manière avantageuse, les évidements 10 sont formés au niveau d'une jonction entre au moins deux parois radiales 3 pour favoriser la déformation du sous-réseau d'amortissement. Each wall portion 3 forming a stud 9 is delimited by recesses 10 which can be made during or after the molding of the sole, said recesses allowing a bending of the pads 9 independently of each other. Advantageously, the recesses 10 are formed at a junction between at least two radial walls 3 to promote the deformation of the damping sub-network.
Le sous-réseau d'amortissement peut être formé dans les zones subissant les pressions maximales du pied, notamment les zones d'attaque du pied au sol où une absorption optimale des chocs est nécessaire, ledit sous-réseau pouvant être situé dans la partie de talon et/ou dans la partie d'avant-pied. The damping sub-network may be formed in the zones undergoing the maximum foot pressures, in particular the ground footing zones where optimal shock absorption is required, said sub-network being able to be located in the part of the foot. heel and / or in the forefoot part.
De manière avantageuse, le sous-réseau d'amortissement est réalisé dans une zone intérieure du réseau de rigidification, ledit sous-réseau étant relié au bord périphérique 5 par l'intermédiaire des parois latérales 3a. Ainsi, cet agencement permet de maintenir autour de la zone de parois 3 désolidarisées une rigidité de la semelle nécessaire à la conservation du dynamisme des appuis. Advantageously, the damping subarray is formed in an inner zone of the stiffening network, said sub-network being connected to the peripheral edge 5 via the side walls 3a. Thus, this arrangement allows to maintain around the zone of walls 3 uncoupled stiffness of the sole necessary to maintain the dynamism of the supports.
Selon le mode de réalisation représenté, le sous-réseau d'amortissement est formé au centre de la partie de talon par la désolidarisation d'au moins une paroi 3 de six alvéoles 4 hexagonales du réseau de rigidification. En particulier, les évidements 10 sont formés au niveau d'un sommet 7 commun à au moins deux alvéoles 4 pour notamment assurer la continuité du sous-réseau d'amortissement dans le réseau de rigidification. According to the embodiment shown, the damping subarray is formed in the center of the heel portion by the separation of at least one wall 3 of six hexagonal cells 4 of the stiffening network. In particular, the recesses 10 are formed at a vertex 7 common to at least two cells 4 in particular to ensure the continuity of the damping subarray in the stiffening network.
Les alvéoles 4 désolidarisées du sous-réseau d'amortissement comprennent au moins deux évidements 10 formés sur respectivement un sommet 7. Pour améliorer la déformabilité du sous-réseau d'amortissement, les deux évidements 10 sont formés sur respectivement deux sommets 7 adjacents de manière à ce qu'un plot 9 soit formé dans une paroi 3 d'une alvéole 4. En particulier, les alvéoles 4 désolidarisées peuvent comporter un nombre de plots 9 différents en fonction de leur disposition dans le sous-réseau d'amortissement. Selon les figures, le sous-réseau d'amortissement comprend une alvéole centrale 4a et cinq alvéoles périphériques 4b-4f, lesdites alvéoles périphériques étant reliées au bord périphérique 5 par respectivement au moins deux parois latérales 3a. L'alvéole centrale 4a est entourée par respectivement deux alvéoles périphériques avant 4b, 4c et arrière 4d, 4e, la cinquième alvéole périphérique 4f étant adjacente aux deux alvéoles arrière 4d, 4e, à l'opposée de ladite alvéole centrale. The cells 4 disengaged from the damping subarray comprise at least two recesses 10 formed on a vertex 7 respectively. To improve the deformability of the damping subarray, the two recesses 10 are formed on respectively two vertices 7 adjacent to one another. that a stud 9 is formed in a wall 3 of a cell 4. In In particular, the disconnected cells 4 may comprise a number of pads 9 different according to their arrangement in the damping sub-network. According to the figures, the damping sub-network comprises a central cell 4a and five peripheral cells 4b-4f, said peripheral cells being connected to the peripheral edge 5 by respectively at least two side walls 3a. The central cell 4a is surrounded by respectively two peripheral cells before 4b, 4c and rear 4d, 4e, the fifth peripheral cell 4f being adjacent to the two rear cells 4d, 4e, the opposite of said central cell.
En particulier, la désolidarisation des parois 3 est telle que l'assouplissement du réseau de rigidification augmente progressivement vers l'intérieur dudit réseau. A cet effet, un évidement 10 est formé dans chacun des sommets 7 de l'alvéole centrale 4a de sorte que ladite alvéole centrale forme six plots 9, les alvéoles périphériques avant 4b, 4c et arrière 4d, 4e présentant trois plots 9 qui sont chacun délimités notamment par un évidement 10 formé dans un sommet 7 commun avec ladite alvéole centrale. En outre, les alvéoles périphériques arrière 4d, 4e comprennent chacune un quatrième plot 9 qui est commun avec la cinquième alvéole périphérique 4f. In particular, the separation of the walls 3 is such that the softening of the stiffening network gradually increases towards the inside of said network. For this purpose, a recess 10 is formed in each of the vertices 7 of the central recess 4a so that said central recess forms six studs 9, the peripheral cells before 4b, 4c and rear 4d, 4e having three studs 9 which are each delimited in particular by a recess 10 formed in a vertex 7 common with said central cavity. In addition, the rear peripheral cells 4d, 4e each comprise a fourth pad 9 which is common with the fifth peripheral cell 4f.
Ainsi, le sous-réseau d'amortissement comprend des plots 9 orientés dans au moins deux directions différentes de sorte que le fléchissement desdits plots peut être réalisé en fonction de la direction de la force d'appui pour ajuster l'amorti de la semelle. En relation avec les figures, les plots 9 sont disposés à 120° les uns des autres, lesdits plots présentant alors trois orientations différentes. La taille du sous-réseau d'amortissement et/ou le nombre de plots 9 peut varier selon les caractéristiques physiologiques de l'utilisateur, telles que son sexe ou son poids. En outre, les plots 9 peuvent être formés de manière à présenter une inclinaison par rapport à la surface de base 2 dans une ou plusieurs directions, notamment selon leur disposition au sein du sous-réseau d'amortissement, lesdits plots pouvant être inclinés vers l'avant ou vers l'arrière de la semelle pour favoriser leur déformation lors de l'appui du pied. Thus, the damping sub-network comprises pads 9 oriented in at least two different directions so that the deflection of said pads can be made according to the direction of the support force to adjust the cushioning of the sole. In relation to the figures, the pads 9 are arranged at 120 ° from each other, said pads then having three different orientations. The size of the damping sub-network and / or the number of pads 9 may vary depending on the physiological characteristics of the user, such as his sex or weight. In addition, the pads 9 may be formed so as to have an inclination with respect to the base surface 2 in one or more directions, in particular according to their arrangement within the damping sub-network, said pads being able to be inclined towards the front or towards the rear of the sole to promote their deformation during the support of the foot.
En relation avec la figure 3, les évidements 10 s'étendent sur toute la hauteur des parois 3 pour obtenir un fléchissement maximal des plots 9 en direction de la surface de base 2. En variante, les évidements 10 peuvent s'étendre sur seulement une partie de la hauteur des parois 3 pour former un pont de jonction à la base des plots 9 afin de limiter leur fléchissement et obtenir un amorti plus progressif. En particulier, les ponts de jonction à la base des plots 9 peuvent être issus du moulage de la semelle. Les évidements partiels peuvent également être réalisés au moyen d'un matériau coulé dans la semelle qui peut être identique au matériau de ladite semelle ou être différent, tel que de l'EVA ou du polyuréthane. Par ailleurs, les évidements 10 peuvent être réalisés de manière à former des plots 9 présentant une géométrie effilée vers le haut, lesdits plots pouvant être notamment trapézoïdes ou triangulaires de manière à augmenter l'assouplissement du réseau de rigidification, la géométrie desdits plots pouvant être agencée en fonction de l'usage de la chaussure, notamment en fonction de la pratique sportive pour laquelle l'amorti de la semelle doit être adapté à la nature du terrain d'évolution et au mode de déplacement.  In relation to FIG. 3, the recesses 10 extend over the entire height of the walls 3 to obtain maximum deflection of the pads 9 in the direction of the base surface 2. As a variant, the recesses 10 may extend over only one part of the height of the walls 3 to form a connecting bridge at the base of the pads 9 to limit their sagging and get a more gradual cushioning. In particular, the connecting bridges at the base of the pads 9 may be derived from the molding of the sole. The partial recesses may also be made by means of a material cast in the soleplate which may be identical to the material of said sole or be different, such as EVA or polyurethane. Furthermore, the recesses 10 may be made so as to form studs 9 having a tapered geometry upwards, said pads may be in particular trapezoidal or triangular so as to increase the softening of the stiffening network, the geometry of said pads may be arranged according to the use of the shoe, in particular according to the sport practice for which the cushioning of the sole must be adapted to the nature of the terrain of evolution and mode of travel.
En outre, les plots 9 peuvent comprendre une surface supérieure d'appui plus ou moins importante, qui est également adaptée à l'usage de la chaussure et/ou à l'utilisateur, lesdits plots présentant une section identique ou différente entre eux qui peut être notamment triangulaire, ovale ou hexagonale. In addition, the pads 9 may comprise a greater or lesser upper bearing surface, which is also adapted to the use of the boot and / or to the user, said pads having an identical or different section between them which can be especially triangular, oval or hexagonal.
Selon l'amorti souhaité, le réseau de rigidification peut comprendre des alvéoles 4 de tailles différentes, les alvéoles 4 du sous-réseau d'amortissement pouvant présenter une dimension supérieure à celle des autres alvéoles 4. En outre, la taille des alvéoles 4 peut diminuer progressivement en direction du bord périphérique 5, de sorte que le sous-réseau d'amortissement comprend des alvéoles 4 périphériques de taille plus réduite que les autres alvéoles 4 dudit sous-réseau de manière à augmenter l'amorti vers l'intérieur dudit sous-réseau tout en maintenant la rigidité périphérique. According to the desired damping, the stiffening network may comprise cells 4 of different sizes, the cells 4 of the damping sub-network may have a larger dimension than the other cells 4. In addition, the size of the cells 4 may gradually decrease towards the peripheral edge 5, so that the damping sub-network comprises smaller peripheral cells 4 than the other cells 4 of said sub-network so as to increase the inward damping of said sub-network while maintaining the peripheral stiffness.

Claims

REVENDICATIONS
1 . Semelle de chaussure présentant une surface de base (2) sur laquelle sont formées des alvéoles (4) qui sont délimitées par des parois radiales (3) issues de ladite surface, lesdites parois étant reliées entre elles pour former un réseau de rigidification de ladite semelle, ladite semelle étant caractérisée en ce que le réseau de rigidification présente une zone dans laquelle les parois (3) sont désolidarisées pour réaliser des plots (9) formés chacun par une portion de paroi (3) qui est délimitée par des évidements (10), lesdits plots étant agencés pour pouvoir se déformer afin de créer un sous-réseau d'amortissement des impacts au sol. 1. Shoe sole having a base surface (2) on which are formed cells (4) which are delimited by radial walls (3) issuing from said surface, said walls being interconnected to form a stiffening network of said soleplate , said soleplate being characterized in that the stiffening network has a zone in which the walls (3) are disengaged to produce pads (9) each formed by a wall portion (3) which is delimited by recesses (10). said pads being arranged to be deformable to create a sub-network damping impacts on the ground.
2. Semelle de chaussure selon la revendication 1 , caractérisée en ce que les évidements (10) sont formés au niveau d'une jonction entre au moins deux parois (3) du réseau de rigidification. 2. Shoe sole according to claim 1, characterized in that the recesses (10) are formed at a junction between at least two walls (3) of the stiffening network.
3. Semelle de chaussure selon la revendication 1 ou 2, caractérisée en ce que le sous-réseau d'amortissement est réalisé dans une zone intérieure du réseau de rigidification. Shoe sole according to claim 1 or 2, characterized in that the damping sub-network is made in an interior zone of the stiffening network.
4. Semelle de chaussure selon l'une quelconque des revendications 1 à 3, caractérisée en ce que le réseau de rigidification comprend des parois latérales (3a) qui sont associées au bord périphérique (5) de la semelle. 4. Shoe sole according to any one of claims 1 to 3, characterized in that the stiffening network comprises side walls (3a) which are associated with the peripheral edge (5) of the sole.
5. Semelle de chaussure selon les revendications 3 et 4, caractérisée en ce que le sous-réseau d'amortissement est relié au bord périphérique (5) par l'intermédiaire des parois latérales (3a). Shoe sole according to claims 3 and 4, characterized in that the damping sub-network is connected to the peripheral edge (5) via the side walls (3a).
6. Semelle de chaussure selon l'une quelconque des revendications 1 à 5, caractérisée en ce que chaque alvéole (4) est délimitée par six parois (3) disposées suivant une géométrie hexagonale, le réseau de rigidification s'étendant sur la surface de base (2) selon une configuration en nid d'abeilles. 6. sole shoe according to any one of claims 1 to 5, characterized in that each cell (4) is delimited by six walls (3) arranged in a hexagonal geometry, the stiffening network extending over the surface of base (2) in a honeycomb configuration.
7. Semelle de chaussure selon la revendication 6 lorsqu'elle dépend de la revendication 2, caractérisée en ce que les évidements (10) sont formés au niveau d'un sommet (7) commun à au moins deux alvéoles (4). 7. shoe sole according to claim 6 when dependent on claim 2, characterized in that the recesses (10) are formed at a vertex (7) common to at least two cells (4).
8. Semelle de chaussure selon la revendication 7, caractérisée en ce qu'au moins deux évidements (10) sont formés sur respectivement un sommet (7) d'une alvéole (4). 8. shoe sole according to claim 7, characterized in that at least two recesses (10) are formed on one vertex (7) of a cell (4) respectively.
9. Semelle de chaussure selon la revendication 8, caractérisée en ce que deux évidements (10) sont formés sur respectivement deux sommets (7) adjacents pour former un plot (9) dans une paroi (3). 9. Shoe sole according to claim 8, characterized in that two recesses (10) are formed on two adjacent vertices (7) respectively to form a stud (9) in a wall (3).
10. Semelle de chaussure selon l'une quelconque des revendications 1 à 9, caractérisée en ce que les plots (9) sont orientés dans au moins deux directions différentes. 10. Sole shoe according to any one of claims 1 to 9, characterized in that the pads (9) are oriented in at least two different directions.
1 1 . Semelle de chaussure selon l'une quelconque des revendications 1 à 10, caractérisée en ce que des évidements (1 0) s'étendent sur toute la hauteur des parois (3). 1 1. Shoe sole according to any one of claims 1 to 10, characterized in that recesses (1 0) extend over the entire height of the walls (3).
12. Semelle de chaussure selon l'une quelconque des revendications 1 à 1 1 , caractérisée en ce que des évidements (10) s'étendent sur une partie de la hauteur des parois (3) pour former un pont de jonction à la base des plots (9). 12. Shoe sole according to any one of claims 1 to 1 1, characterized in that recesses (10) extend over part of the height of the walls (3) to form a connecting bridge at the base of the studs (9).
13. Semelle de chaussure selon l'une quelconque des revendications 1 à 12, caractérisée en ce que le réseau de rigidification est formé sur au moins une partie de talon de la surface de base (2). Shoe sole according to one of claims 1 to 12, characterized in that the stiffening network is formed on at least one bead portion of the base surface (2).
EP13808090.8A 2012-11-21 2013-11-21 Shoe sole Not-in-force EP2922436B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR1261098A FR2998144B1 (en) 2012-11-21 2012-11-21 SOLE OF A SHOE
PCT/FR2013/052818 WO2014080132A1 (en) 2012-11-21 2013-11-21 Shoe sole

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EP2922436A1 true EP2922436A1 (en) 2015-09-30
EP2922436B1 EP2922436B1 (en) 2016-11-02

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ES (1) ES2606201T3 (en)
FR (1) FR2998144B1 (en)
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US10278450B2 (en) * 2015-10-07 2019-05-07 Nike, Inc. Sole structures and articles of footwear having an elongated hexagonal siping pattern and/or a heel pocket structure
USD781038S1 (en) * 2015-12-22 2017-03-14 Nike, Inc. Shoe outsole
USD788420S1 (en) * 2015-12-28 2017-06-06 Nike, Inc. Shoe outsole
CN110074507A (en) * 2019-05-21 2019-08-02 顺德职业技术学院 It is a kind of can locating and tracking shoes
CN113303549A (en) * 2020-02-26 2021-08-27 初石智能科技(上海)有限公司 Insole, footwear product, three-dimensional data processing method and 3D printing method
WO2021169804A1 (en) * 2020-02-26 2021-09-02 初石智能科技(上海)有限公司 Shoe midsole, footwear product, three-dimensional data processing method, and 3d printing method

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FR2998144A1 (en) 2014-05-23
CN104918507A (en) 2015-09-16
FR2998144B1 (en) 2015-02-20
WO2014080132A1 (en) 2014-05-30
ES2606201T3 (en) 2017-03-23
EP2922436B1 (en) 2016-11-02
CN104918507B (en) 2016-12-21
PL2922436T3 (en) 2017-03-31

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