EP0787441A1 - Sports shoe - Google Patents

Sports shoe Download PDF

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Publication number
EP0787441A1
EP0787441A1 EP96119600A EP96119600A EP0787441A1 EP 0787441 A1 EP0787441 A1 EP 0787441A1 EP 96119600 A EP96119600 A EP 96119600A EP 96119600 A EP96119600 A EP 96119600A EP 0787441 A1 EP0787441 A1 EP 0787441A1
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EP
European Patent Office
Prior art keywords
buttress
shoe
rigid
heel
flexible
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
EP96119600A
Other languages
German (de)
French (fr)
Other versions
EP0787441B1 (en
Inventor
Thierry Donnadieu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Salomon SAS
Original Assignee
Salomon SAS
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Publication date
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Application filed by Salomon SAS filed Critical Salomon SAS
Priority to EP01121908A priority Critical patent/EP1166668B1/en
Publication of EP0787441A1 publication Critical patent/EP0787441A1/en
Application granted granted Critical
Publication of EP0787441B1 publication Critical patent/EP0787441B1/en
Anticipated expiration legal-status Critical
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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/04—Ski or like boots
    • A43B5/0486—Ski or like boots characterized by the material
    • A43B5/049—Ski or like boots characterized by the material with an upper made of composite material, e.g. fibers or core embedded in a matrix
    • 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
    • A43B23/16—Heel stiffeners; Toe stiffeners made of impregnated fabrics, plastics or the like
    • A43B23/17—Heel stiffeners; Toe stiffeners made of impregnated fabrics, plastics or the like made of plastics
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/04—Ski or like boots
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/04—Ski or like boots
    • A43B5/0492—Telemark boots
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/04—Ski or like boots
    • A43B5/0496—Ski or like boots boots for touring or hiking skis

Definitions

  • the present invention relates to a shoe intended for sports requiring a movement of the foot, such as for example snowshoeing, cross-country skiing, classic or skate style, telemark skiing and hiking, and / or sliding sports such as example snowboarding, ice skating and roller skating, namely sports requiring good transmission of the forces exerted by the foot for better grip, edge grip.
  • the second condition to be met by a shoe intended for the aforementioned sports is the transmission of the forces originating from the user's leg to the metatarsophalangeal zone, which represents the zone of impulse of the foot relative to the ground and / or support. . To avoid loss of force by damping and parasitic deformation, it is essential to stiffen the basic structure of the shoe.
  • a shoe intended for the abovementioned sports must satisfy different and incompatible requirements, which at first sight cannot be achieved without prejudicing at least one of the abovementioned aspects.
  • the present invention therefore aims to provide a shoe of improved design which overcomes the disadvantages encountered in the prior art and which reconciles conflicting requirements, to improve the hold of the heel while allowing the natural course of the foot, and being simple and inexpensive construction.
  • the central idea of the present invention is to improve the holding of the heel of the foot by providing, at this level, a buttress, which is rigid and substantially non-flexible. It is then the stiffness of the buttress which allows at the same time a satisfactory hold of the heel and a transmission of the forces. Furthermore, this construction allows flexibility of the outer sole in the so-called metatarsophalangeal area and a more natural course of the foot.
  • the rigid buttress extends over at least one side of the shoe substantially up to the so-called metatarsophalangeal flexion zone. It results from the reinforcement of the rear part of the shoe, a satisfactory transmission of the forces coming from the user's leg to the front part of the foot, which is in permanent contact with the ground or the sliding support.
  • the rigid buttress and essentially the rear part of the base of the foot surrounds the heel in the manner of a shell.
  • This construction also allows a better transmission of forces, in particular in transverse direction, thanks to the reinforcement and the shell shape of the rear part of the shoe, while keeping the flexibility of the shoe in the metatarsophalangeal zone.
  • Said constructions allow better control of the ski by holding the heel and at the same time a general gain in energy and a direct transmission of forces by canceling parasitic deformations of the sole and of the boot, which parasitic deformations are useless for propulsion. by the movements typical of the aforementioned sports.
  • FIGS. 1 and 2 a shoe 1 intended for the practice of cross-country skiing, particularly for the so-called skate style.
  • the present invention also applies to all sports requiring a running of the foot, such as for example snowshoeing, cross-country skiing, telemark skiing and hiking, and / or sliding sports such as for example snowboard, ice skating, roller skating, ... etc.
  • the following description is made with reference to a shoe for the practice of cross-country skiing.
  • the shoe 1 shown comprises, in a known manner, a upper 2, an outer sole 5 and an articulated collar 8, which is fixed to the rod via a hinge pin 7.
  • the construction of a shoe upper for cross-country skiing is well known in the prior art and will not be explained in detail in the description.
  • the shoe 1 shown in FIGS. 1 and 2 is provided with a first rear buttress 13, made of a material which is flexible enough to allow attachment by stitching of this flexible buttress 13 to the upper 2.
  • the shoe 1 also has a second buttress 3, which is more rigid than the flexible buttress 13, and is in fact substantially non-flexible.
  • This rigid buttress 3 surrounds the heel 11 of the shoe 1 by two walls, respectively lateral 9 and medial 10, and by a rear wall at the heel 11.
  • lateral wall respectively median, is meant each of the walls of said buttress respectively disposed towards outside and inward of the foot or shoe.
  • the rigid buttress extends forward substantially as far as the so-called metatarsophalangeal flexion zone 4.
  • the reinforcement of the shoe 1 via the rigid buttress 3 is therefore limited to an area between the heel 11 and said area 4 of metatarsophalangeal flexion.
  • the user's foot is therefore well held on the side of the heel 11, while retaining flexibility of the shoe 1 in the metatarsophalangeal flexion zone 4, which allows an almost natural unfolding of the foot.
  • the rigid buttress 3 has a maximum height which does not exceed that of the region located substantially below the ankle area 6, and is in particular lower than the level of said area.
  • the rigid buttress 3 rises substantially up to the level of the articulation zone of the ankle and comprises the articulation axis 7 of the articulated collar 8.
  • the maximum height of the buttress 3 is on the contrary lower than the level of the hinge pin 7 which is therefore only fixed on the first flexible buttress 13, which makes it possible to have more freedom in transverse direction at the level of the collar due to the greater flexibility of the material.
  • the maximum height of the buttress 3 is chosen so that the natural movement of the ankle 6 is not hindered.
  • each of the walls 9, 10 decreases in height going towards the front of the buttress 2.
  • each wall 9, 10 joins the upper edge 21 of the outer sole 3.
  • the side wall 9 decreases in a substantially continuous manner by forming an angle of at roughly 45 ° with the upper edge 21 of the outer sole.
  • the medial wall 10 can have the same shape.
  • the side wall 9, like the medial wall 10 also decreases towards the rear, heel zone 11, for better foot comfort.
  • the buttress 2 can form a stop 22 for supporting an elastic loop 14 which surrounds the rear of the ankle 6 in the manner of a spur which provides an elastic return to the collar.
  • This loop 14 is also known and does not constitute an essential element of the present invention. It is for this reason that the loop 14 will not be described in detail.
  • the rigid buttress 3 which can make it impossible to fix the rigid buttress 3 directly to the fabric and / or leather of the rod 2, it may be advantageous to fix the rigid buttress 3, for example by gluing and / or riveting, on the flexible buttress 13, which has sufficient flexibility allowing it to be connected, for example by gluing, stitching and / or riveting on the rod 2.
  • the flexible buttress 13 also allows some padding of the rigid buttress 3, which avoids local pressure on the user's foot.
  • the rigid buttress 3 only covers the flexible buttress 13 leaving an edge 23 exposed, which projects at least the upper edge 24 of the side wall of the rigid buttress 3, so as to facilitate its fixing or connection to the rod.
  • the preferred materials of the rigid buttress 3 are plastics which can be reinforced with fibers, for example glass or carbon, and metallic materials. In any case, all the materials are suitable, essentially guaranteeing an almost non-flexibility of the rigid buttress 3.
  • the preferred stiffness of the rigid buttress is between 260 MPa (Mega Pascal) which corresponds to the elastic modulus Pebax 6333, and 200 GPa (Giga Pascal) which corresponds to the elastic modulus of a fiberglass + carbon composite.
  • the outer sole according to the embodiment shown in FIG. 2 is made up of two parts, a front part 15 and a rear part 16.
  • the front part 15 extends essentially from the front end 24 of the shoe 1 up to zone 4 of metatarsophalangeal flexion.
  • This front part 15 is flexible enough to allow almost natural bending in said bending zone 4.
  • the rear part 16 of the outer sole and the rigid buttress 3 form a one-piece and preferably single-piece assembly.
  • This construction has advantages with regard to the mounting of the rear part 16 of the sole and of the rigid buttress 3 in one piece on the upper 2, the sealing of the rear lower part of the shoe 1, particularly in the area which traditionally represents the connection between the outer sole and the buttress, and also with regard to a further improved reinforcement, compared to the embodiment described with reference to FIG. 1, of the rear part and the heel of the shoe 2 .
  • the rigid buttress 3 shown in FIG. 3 has the shape of a shell of cross section in the shape of a "U" and completely surrounding the heel, namely both laterally, at the rear and from below, and has a maximum height well below the level of the ankle area 6.
  • the preferred height is between about 2 cm and 4 cm.
  • the embodiment according to FIG. 2, namely the monobloc construction of the rear part of the outer sole with the rigid buttress 3, is symbolized by dotted lines.
  • the rigid buttress 3 shown in FIG. 3 completely covers the base of the foot.
  • the buttress 3 could just as well cover the base part of the foot only partially, for example by forming a hollow or one or more recesses in the base part 17 of the rigid buttress 3.
  • the construction of the rigid buttress 3 according to the example shown in FIG. 3 allows the heel and the rear part of the base of the foot to be surrounded in the manner of a shell.
  • the lateral wall 9 and / or the medial wall 10 of the rigid buttress 3 can be provided with recesses 18, which allows a reduction in the weight of the rigid buttress 3 while retaining its rigidity.
  • the rigid buttress 3 without bottom 17 and provided with flanges 19 extends from the lower edges respectively of the side wall 9 and the medial wall 10, horizontally inward.
  • These transverse flanges 19 serve for fixing the buttress by interposing between a first assembly of the rod 2 and the outer sole.
  • these transverse flanges 19 participate in the stiffening of the rigid buttress 3, in particular in torsion.
  • these transverse flanges 19 can be provided fairly wide so that they almost meet leaving only one slot between them.
  • the lateral wall 9 of the rigid buttress 3, in the example shown in the figures, can extend further in the longitudinal direction than the medial wall 10 while respecting the orientation of the natural flexion line in the metatarsal zone 4.
  • phalangeal which forms an acute angle with the longitudinal axis of a foot.

Abstract

The boot consists of a sole (5) and an upper (2) equipped with a rigid stiffener (3) which passes round the heel and extends along at least one side of the boot as far as the metatarsal-phalangeal flexure zone and upwards to a point just below the ankle or the pivot point (7) of a flexible upper collar (8). The stiffener can extend further along one side of the boot than the other and be lower at the heel than at its highest side point. It can also be made in one piece with the rear part of the sole and be fastened to the boot via a flexible element (13) covering the same area. The preferred materials for the stiffener are, for example, plastics reinforced by glass or carbon fibres, or metals, having a rigidity of 260 MPa to 200 GPa.

Description

La présente invention concerne une chaussure destinée à des sports exigeant un déroulement du pied, comme par exemple la raquette à neige, le ski de fond, style classique ou skate, le ski télémark et la randonnée, et/ou des sports de glisse comme par exemple le snowboard, le patin à glace et le patin à roulettes, à savoir des sports nécessitant une bonne transmission des efforts exercés par le pied pour une meilleure accroche, prise de carre.The present invention relates to a shoe intended for sports requiring a movement of the foot, such as for example snowshoeing, cross-country skiing, classic or skate style, telemark skiing and hiking, and / or sliding sports such as example snowboarding, ice skating and roller skating, namely sports requiring good transmission of the forces exerted by the foot for better grip, edge grip.

Dans tout les sports susmentionnés, il est nécessaire de transmettre les efforts provenant de la jambe de l'utilisateur par l'intermédiaire de la cheville, du pied à la zone de contact de la chaussure avec le sol ou un support de glisse. Ladite zone de contact, qui est localisée dans une zone dite métatarso-phalangienne, en pratiquant l'un quelconque des sports susmentionnés, doit rester constamment en contact avec le support et/ou le sol, même lorsque l'utilisateur soulève le talon d'un pied pour pratiquer une foulée, et/ou pour pratiquer un déplacement du centre de gravité par rapport à la direction du support de glisse. Il en résulte que, pendant le soulèvement, la partie du pied et de la chaussure située derrière la zone métatarso-phalangienne forme un angle avec la partie de la chaussure situé devant ladite zone. Ledit angle se traduit en une flexion du pied de l'utilisateur, et par conséquence de la chaussure, dans ladite zone métatarso-phalangienne.In all the aforementioned sports, it is necessary to transmit the forces originating from the user's leg via the ankle, the foot to the area of contact of the shoe with the ground or a sliding support. Said contact area, which is located in a so-called metatarsophalangeal area, while practicing any of the aforementioned sports, must remain constantly in contact with the support and / or the ground, even when the user lifts his heel. a foot for practicing a stride, and / or for practicing a displacement of the center of gravity relative to the direction of the sliding support. It follows that, during the lifting, the part of the foot and of the shoe located behind the metatarsophalangeal zone forms an angle with the part of the shoe located in front of said zone. Said angle results in a flexion of the user's foot, and consequently of the shoe, in said metatarsophalangeal zone.

Il est donc à noter, qu'une chaussure destinée aux sports susmentionnés, doit, comme première condition, satisfaire à l'exigence d'une flexibilité suffisante dans la zone métatarso-phalangienne permettant un déroulement aussi naturel que possible.It should therefore be noted, that a shoe intended for the abovementioned sports, must, as a first condition, satisfy the requirement of sufficient flexibility in the metatarsophalangeal zone allowing a course as natural as possible.

La transmission des efforts provenant de la jambe de l'utilisateur à la zone métatarso-phalangienne, qui représente la zone d'impulsion du pied par rapport au sol et/ou support, représente la deuxième condition à satisfaire par une chaussure destinée aux sports susmentionnés. Pour éviter des pertes d'effort par amortissement et déformation parasite, il est indispensable de rigidifier la structure de base de la chaussure.The second condition to be met by a shoe intended for the aforementioned sports is the transmission of the forces originating from the user's leg to the metatarsophalangeal zone, which represents the zone of impulse of the foot relative to the ground and / or support. . To avoid loss of force by damping and parasitic deformation, it is essential to stiffen the basic structure of the shoe.

En outre, il est important d'éviter tout mouvement du pied par rapport à la chaussure. Il en résulte notamment la condition d'une tenue satisfaisante du talon à l'intérieur de cette chaussure.In addition, it is important to avoid movement of the foot in relation to the shoe. This results in particular in the condition of a satisfactory hold of the heel inside this shoe.

Pour résumer, une chaussure destinée aux sports susmentionnée doit satisfaire à des exigences différentes et incompatibles, ce qui à première vue, n'est pas réalisable sans porter préjudice à au moins l'un des aspects susmentionnés.To sum up, a shoe intended for the abovementioned sports must satisfy different and incompatible requirements, which at first sight cannot be achieved without prejudicing at least one of the abovementioned aspects.

C'est pour cela que jusqu'à présent on a essayé de nombreuses approches en vue de résoudre ce problème. Par exemple, il est connu de pourvoir une chaussure de ski de fond, d'une semelle sensiblement non flexible. Évidemment, il en résulte le problème, qu'un déroulement naturel du pied n'est plus réalisable, étant donné que la semelle s'oppose au mouvement naturel de flexion dans la zone métatarso-phalangienne.This is why so far we have tried many approaches to solve this problem. For example, it is known to provide a cross-country ski boot with a substantially non-flexible sole. Obviously, this results in the problem that a natural course of the foot is no longer achievable, since the sole opposes the natural movement of flexion in the metatarsophalangeal zone.

Une autre approche, connue par exemple du document IT 195 621 consiste dans la disposition d'un bord remontant de la semelle externe, qui entoure toute la chaussure. Cependant, cette construction rend impossible un déroulement naturel du pied.Another approach, known for example from document IT 195 621, consists in the arrangement of a rising edge of the outer sole, which surrounds the entire shoe. However, this construction makes a natural unfolding of the foot impossible.

Encore, une autre approche, connue par exemple du document EP-A-309 437, consiste dans la disposition d'une semelle plus ou moins souple et d'un contrefort flexible, qui entoure le talon. Cependant cette construction ne permet ni une tenue satisfaisante du talon, ni une transmission efficace des efforts provenant de la jambe de l'utilisateur.Yet another approach, known for example from document EP-A-309,437, consists in the provision of a more or less flexible sole and a flexible buttress, which surrounds the heel. However, this construction does not allow satisfactory holding of the heel, nor an effective transmission of forces from the user's leg.

La présente invention a donc comme objectif de fournir une chaussure de conception améliorée qui remédie aux désavantages rencontrés dans l'art antérieur et qui concilie les exigences contradictoires, d'améliorer la tenue du talon tout en permettant le déroulement naturel du pied, et en étant de construction simple et peu coûteuse.The present invention therefore aims to provide a shoe of improved design which overcomes the disadvantages encountered in the prior art and which reconciles conflicting requirements, to improve the hold of the heel while allowing the natural course of the foot, and being simple and inexpensive construction.

L'idée centrale de la présente invention est d'améliorer la tenue du talon du pied en prévoyant, à ce niveau, un contrefort, qui est rigide et sensiblement non flexible. C'est alors la rigidité du contrefort qui permet en même temps une tenue satisfaisante du talon et une transmission des efforts. Par ailleurs, cette construction permet une flexibilité de la semelle externe dans la zone dite métatarso-phalangienne et un déroulement plus naturel du pied.The central idea of the present invention is to improve the holding of the heel of the foot by providing, at this level, a buttress, which is rigid and substantially non-flexible. It is then the stiffness of the buttress which allows at the same time a satisfactory hold of the heel and a transmission of the forces. Furthermore, this construction allows flexibility of the outer sole in the so-called metatarsophalangeal area and a more natural course of the foot.

Selon un premier aspect de la présente invention, le contrefort rigide s'étend sur au moins un coté de la chaussure sensiblement jusqu'à la zone de flexion dite métatarso-phalangienne. Il résulte, du renforcement de la partie arrière de la chaussure, une transmission satisfaisante des efforts provenant de la jambe de l'utilisateur à la partie avant du pied, qui est en contact permanent avec le sol ou le support de glisse.According to a first aspect of the present invention, the rigid buttress extends over at least one side of the shoe substantially up to the so-called metatarsophalangeal flexion zone. It results from the reinforcement of the rear part of the shoe, a satisfactory transmission of the forces coming from the user's leg to the front part of the foot, which is in permanent contact with the ground or the sliding support.

Selon un deuxième aspect de la présente invention, le contrefort rigide et essentiellement la partie arrière de la base du pied entoure le talon à la manière d'une coque. Cette construction, elle aussi permet une meilleure transmission des efforts, notamment en direction transversale, grâce au renforcement et à la forme de coque de la partie arrière de la chaussure, tout en gardant une flexibilité de la chaussure dans la zone métatarso-phalangienne.According to a second aspect of the present invention, the rigid buttress and essentially the rear part of the base of the foot surrounds the heel in the manner of a shell. This construction also allows a better transmission of forces, in particular in transverse direction, thanks to the reinforcement and the shell shape of the rear part of the shoe, while keeping the flexibility of the shoe in the metatarsophalangeal zone.

Lesdites constructions permettent un meilleur contrôle du ski par le tenue du talon et en même temps un gain général d'énergie et une transmission directe des efforts par annulation des déformations parasites de la semelle et de la chaussure, lesquelles déformations parasites sont inutiles pour la propulsion par les mouvements typiques des sports susmentionnés.Said constructions allow better control of the ski by holding the heel and at the same time a general gain in energy and a direct transmission of forces by canceling parasitic deformations of the sole and of the boot, which parasitic deformations are useless for propulsion. by the movements typical of the aforementioned sports.

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 schématiquement en représentant, à titre d'exemple non limitatif, plusieurs modes de réalisation et dans lequel :

  • La figure 1 est une vue latérale d'un premier mode de réalisation de la présente invention,
  • la figure 2 est une vue latérale d'un deuxième mode de réalisation de la présente invention,
  • la figure 3 montre un contrefort selon la présente invention,
  • la figure 4 montre un autre contrefort selon la présente invention.
In any case, the invention will be better understood and other characteristics thereof will be highlighted with the aid of the description which follows with reference to the drawing schematically by representing, by way of nonlimiting example, several modes and in which:
  • FIG. 1 is a side view of a first embodiment of the present invention,
  • FIG. 2 is a side view of a second embodiment of the present invention,
  • FIG. 3 shows a buttress according to the present invention,
  • Figure 4 shows another buttress according to the present invention.

Sur les figures 1 et 2 est représentée une chaussure 1 destinée à la pratique du ski de fond, particulièrement pour le style dit skate. Cependant, la présente invention s'applique également à tous les sports exigeant un déroulement du pied, comme par exemple la raquette à neige, le ski de fond, le ski télémark et la randonnée, et/ou des sports de glisse comme par exemple le snowboard, le patin à glace, le patin à roulettes,...etc. Pour des raisons de simplicité, la description suivante est effectuée en référence à une chaussure pour la pratique du ski de fond.In FIGS. 1 and 2 is shown a shoe 1 intended for the practice of cross-country skiing, particularly for the so-called skate style. However, the present invention also applies to all sports requiring a running of the foot, such as for example snowshoeing, cross-country skiing, telemark skiing and hiking, and / or sliding sports such as for example snowboard, ice skating, roller skating, ... etc. For reasons of simplicity, the following description is made with reference to a shoe for the practice of cross-country skiing.

La chaussure 1 représentée comporte, d'une manière connue, une tige 2, une semelle externe 5 et un collier articulé 8, qui est fixé à la tige par l'intermédiaire d'un axe d'articulation 7. La construction d'une tige d'une chaussure pour la pratique de ski de fond est bien connue dans l'état de technique et ne vas pas être expliquée en détail dans la description.The shoe 1 shown comprises, in a known manner, a upper 2, an outer sole 5 and an articulated collar 8, which is fixed to the rod via a hinge pin 7. The construction of a shoe upper for cross-country skiing is well known in the prior art and will not be explained in detail in the description.

La chaussure 1 représentée sur les figures 1 et 2 est munie d'un premier contrefort arrière 13, en un matériau qui est assez souple pour permettre une fixation par piquage de ce contrefort souple 13 sur la tige 2.The shoe 1 shown in FIGS. 1 and 2 is provided with a first rear buttress 13, made of a material which is flexible enough to allow attachment by stitching of this flexible buttress 13 to the upper 2.

Selon la présente invention, la chaussure 1 présente en outre un second contrefort 3, qui est plus rigide que le contrefort souple 13, et est en fait sensiblement non flexible. Ce contrefort 3 rigide entoure le talon 11 de la chaussure 1 par deux parois respectivement latérale 9 et médiale 10, et par une paroi arrière au niveau du talon 11. Par paroi latérale, respectivement médiane, on entend chacune des parois dudit contrefort disposée respectivement vers l'extérieur et vers l'intérieur du pied ou de la chaussure. Dans l'exemple représenté, le contrefort rigide s'étend vers l'avant sensiblement jusqu'à la zone 4 de flexion dite métatarso-phalangienne.According to the present invention, the shoe 1 also has a second buttress 3, which is more rigid than the flexible buttress 13, and is in fact substantially non-flexible. This rigid buttress 3 surrounds the heel 11 of the shoe 1 by two walls, respectively lateral 9 and medial 10, and by a rear wall at the heel 11. By lateral wall, respectively median, is meant each of the walls of said buttress respectively disposed towards outside and inward of the foot or shoe. In the example shown, the rigid buttress extends forward substantially as far as the so-called metatarsophalangeal flexion zone 4.

Le renforcement de la chaussure 1 par l'intermédiaire du contrefort 3 rigide est donc limité à une zone comprise entre le talon 11 et ladite zone 4 de flexion métatarso-phalangienne. Le pied de l'utilisateur est donc bien tenu du côté du talon 11, tout en gardant une flexibilité de la chaussure 1 dans la zone de flexion métatarso-phalangienne 4, ce qui permet un déroulement quasi naturel du pied.The reinforcement of the shoe 1 via the rigid buttress 3 is therefore limited to an area between the heel 11 and said area 4 of metatarsophalangeal flexion. The user's foot is therefore well held on the side of the heel 11, while retaining flexibility of the shoe 1 in the metatarsophalangeal flexion zone 4, which allows an almost natural unfolding of the foot.

Le contrefort 3 rigide a une hauteur maximale qui n'excède pas celle de la région située sensiblement au-dessous de la zone de cheville 6, et est notamment plus bas que le niveau de ladite zone.The rigid buttress 3 has a maximum height which does not exceed that of the region located substantially below the ankle area 6, and is in particular lower than the level of said area.

Dans l'exemple de la figure 1, le contrefort 3 rigide monte sensiblement jusqu'au niveau de la zone d'articulation de la cheville et comporte l'axe d'articulation 7 du collier articulé 8.In the example of FIG. 1, the rigid buttress 3 rises substantially up to the level of the articulation zone of the ankle and comprises the articulation axis 7 of the articulated collar 8.

Dans l'exemple de la figure 2, la hauteur maximale du contrefort 3 est au contraire plus basse que le niveau de l'axe d'articulation 7 qui n'est donc fixé que sur le premier contrefort souple 13, ce qui permet d'avoir plus de liberté en direction transversale au niveau du collier du fait de la plus grande souplesse du matériau.In the example of FIG. 2, the maximum height of the buttress 3 is on the contrary lower than the level of the hinge pin 7 which is therefore only fixed on the first flexible buttress 13, which makes it possible to have more freedom in transverse direction at the level of the collar due to the greater flexibility of the material.

De toute façon, le hauteur maximale du contrefort 3 est choisie de telle façon que le mouvement naturel de la cheville 6 ne soit pas entravé.In any case, the maximum height of the buttress 3 is chosen so that the natural movement of the ankle 6 is not hindered.

En partant de la zone au-dessous de la zone de cheville 6 représentant la hauteur maximale en direction transversale du contrefort 2, chacune des parois 9, 10, décroît en hauteur en allant vers l'avant du contrefort 2. A l'extrémité avant 12 du contrefort 2, chaque paroi 9, 10, rejoint le bord 21 supérieur de la semelle externe 3. Dans l'exemple représenté sur la figure 1, la paroi latérale 9 décroît d'une manière sensiblement continue en formant un angle d'à peu près 45° avec le bord 21 supérieur de la semelle externe. La paroi médiale 10 peut avoir la même forme.Starting from the area below the ankle area 6 representing the maximum height in transverse direction of the buttress 2, each of the walls 9, 10, decreases in height going towards the front of the buttress 2. At the front end 12 of the buttress 2, each wall 9, 10, joins the upper edge 21 of the outer sole 3. In the example shown in FIG. 1, the side wall 9 decreases in a substantially continuous manner by forming an angle of at roughly 45 ° with the upper edge 21 of the outer sole. The medial wall 10 can have the same shape.

En partant de la zone au-dessous de la zone de cheville 6 représentant la hauteur maximale en direction transversale du contrefort 2, la paroi latérale 9, de même que la paroi médiale 10, décroît également vers l'arrière, zone de talon 11, pour un meilleur confort du pied.Starting from the zone below the ankle zone 6 representing the maximum height in transverse direction of the buttress 2, the side wall 9, like the medial wall 10, also decreases towards the rear, heel zone 11, for better foot comfort.

Par ailleurs, le contrefort 2 peut former une butée 22 pour l'appui d'un boucle 14 élastique qui entoure l'arrière de la cheville 6 à la manière d'un éperon qui fournit un rappel élastique du collier. Cette boucle 14 est par ailleurs connue et ne constitue pas un élément essentiel de la présente invention. C'est pour cette raison que la boucle 14 ne va être décrite d'une manière détaillée.Furthermore, the buttress 2 can form a stop 22 for supporting an elastic loop 14 which surrounds the rear of the ankle 6 in the manner of a spur which provides an elastic return to the collar. This loop 14 is also known and does not constitute an essential element of the present invention. It is for this reason that the loop 14 will not be described in detail.

Etant donnée la rigidité du contrefort 3 rigide, qui peut rendre impossible une fixation du contrefort 3 rigide directement sur le tissu et/ou cuir de la tige 2, il peut être avantageux de fixer le contrefort 3 rigide, par exemple par collage et/ou rivetage, sur le contrefort souple 13, qui lui présente une flexibilité suffisante permettant sa liaison, par exemple par collage, piquage et/ou rivetage sur la tige 2. Le contrefort 13 souple permet en outre un certain rembourrage du contrefort 3 rigide, ce qui évite des pressions locales sur le pied de l'utilisateur.Given the rigidity of the rigid buttress 3, which can make it impossible to fix the rigid buttress 3 directly to the fabric and / or leather of the rod 2, it may be advantageous to fix the rigid buttress 3, for example by gluing and / or riveting, on the flexible buttress 13, which has sufficient flexibility allowing it to be connected, for example by gluing, stitching and / or riveting on the rod 2. The flexible buttress 13 also allows some padding of the rigid buttress 3, which avoids local pressure on the user's foot.

Enfin, la structure en deux couches du contrefort 3, 13, confère à celui-ci une raideur supplémentaire à la somme des deux raideurs individuelles par l'effet "lamellé-collé" obtenu.Finally, the two-layer structure of the buttress 3, 13 gives it an additional stiffness to the sum of the two individual stiffnesses by the "glued-laminated" effect obtained.

De préférence le contrefort 3 rigide ne couvre le contrefort 13 souple que partiellement en laissant découvert un bord 23, qui déborde au moins le bord supérieur 24 de la paroi latérale du contrefort 3 rigide, de façon à faciliter sa fixation ou liaison sur la tige.Preferably the rigid buttress 3 only covers the flexible buttress 13 leaving an edge 23 exposed, which projects at least the upper edge 24 of the side wall of the rigid buttress 3, so as to facilitate its fixing or connection to the rod.

Les matériaux préférés du contrefort 3 rigide sont des matières plastiques qui peuvent être renforcées par des fibres, par exemple en verre ou en carbone, et des matériaux métalliques. De toute façon sont adaptés tous les matériaux garantissant essentiellement une quasi non flexibilité du contrefort 3 rigide. La rigidité préférée du contrefort rigide est comprise entre 260 MPa (Mega Pascal) ce qui correspond au Module d'élasticité Pebax 6333, et 200 GPa (Giga Pascal) ce qui correspond au Module d'élasticité d'un composite fibre verre + carbone.The preferred materials of the rigid buttress 3 are plastics which can be reinforced with fibers, for example glass or carbon, and metallic materials. In any case, all the materials are suitable, essentially guaranteeing an almost non-flexibility of the rigid buttress 3. The preferred stiffness of the rigid buttress is between 260 MPa (Mega Pascal) which corresponds to the elastic modulus Pebax 6333, and 200 GPa (Giga Pascal) which corresponds to the elastic modulus of a fiberglass + carbon composite.

Outre la hauteur du contrefort rigide 3, la différence principale entre les chaussures des figures 1 et 2 réside dans la construction de la semelle externe.Besides the height of the rigid buttress 3, the main difference between the shoes of Figures 1 and 2 lies in the construction of the outer sole.

En effet, la semelle externe selon le mode de réalisation représenté dans la figure 2 est constituée en deux parties, une partie avant 15 et une partie arrière 16. La partie 15 avant s'étend essentiellement de l'extrémité avant 24 de la chaussure 1 jusqu'à la zone 4 de flexion métatarso-phalangienne. Cette partie 15 avant est suffisamment souple pour permettre une flexion quasi naturelle dans ladite zone 4 de flexion.Indeed, the outer sole according to the embodiment shown in FIG. 2 is made up of two parts, a front part 15 and a rear part 16. The front part 15 extends essentially from the front end 24 of the shoe 1 up to zone 4 of metatarsophalangeal flexion. This front part 15 is flexible enough to allow almost natural bending in said bending zone 4.

La partie arrière 16 de la semelle externe et le contrefort 3 rigide forment un ensemble monobloc et de préférence monomatière. Cette construction présente des avantages en ce qui concerne le montage de la partie arrière 16 de la semelle et du contrefort 3 rigide en une pièce sur la tige 2, l'étanchéité de la partie inférieure arrière de la chaussure 1, particulièrement dans la zone qui représente de façon traditionnelle la liaison entre la semelle externe et du contrefort, et également en ce qui concerne un renforcement encore amélioré, par rapport au mode de réalisation décrit en référence à la figure 1, de la partie arrière et du talon de la chaussure 2.The rear part 16 of the outer sole and the rigid buttress 3 form a one-piece and preferably single-piece assembly. This construction has advantages with regard to the mounting of the rear part 16 of the sole and of the rigid buttress 3 in one piece on the upper 2, the sealing of the rear lower part of the shoe 1, particularly in the area which traditionally represents the connection between the outer sole and the buttress, and also with regard to a further improved reinforcement, compared to the embodiment described with reference to FIG. 1, of the rear part and the heel of the shoe 2 .

Des constructions préférées du contrefort 3 rigide vont maintenant être décrites d'une manière détaillée en référence aux figures 3 et 4.Preferred constructions of the rigid buttress 3 will now be described in detail with reference to FIGS. 3 and 4.

Le contrefort 3 rigide représenté sur la figure 3 a la forme d'une coque de section transversale en forme de "U" et entourant complètement le talon, à savoir aussi bien latéralement, à l'arrière que par en-dessous, et a une hauteur maximale bien au-dessous du niveau de la zone de cheville 6. La hauteur préférée est comprise entre environ 2 cm et 4 cm. Le mode de réalisation selon la figure 2, à savoir la construction monobloc de la partie arrière de la semelle externe avec le contrefort 3 rigide, est symbolisée par des traits en pointillé.The rigid buttress 3 shown in FIG. 3 has the shape of a shell of cross section in the shape of a "U" and completely surrounding the heel, namely both laterally, at the rear and from below, and has a maximum height well below the level of the ankle area 6. The preferred height is between about 2 cm and 4 cm. The embodiment according to FIG. 2, namely the monobloc construction of the rear part of the outer sole with the rigid buttress 3, is symbolized by dotted lines.

Le contrefort 3 rigide représenté dans la figure 3 couvre entièrement la base du pied. Bien entendu, le contrefort 3 pourrait aussi bien ne couvrir la partie de base du pied que partiellement, par exemple en formant un creux ou un ou plusieurs évidements dans la partie de base 17 du contrefort 3 rigide. De toute façon la construction du contrefort 3 rigide selon l'exemple représenté dans la figure 3 permet un entourage du talon et de la partie arrière de la base du pied à la manière d'une coque. En serrant un système de serrage, qui n'est pas représenté dans les figures, et qui peut être constitué par exemple par un laçage, le pied est pressé dans la coque formée par le contrefort 3 rigide et est alors bien tenu au talon.The rigid buttress 3 shown in FIG. 3 completely covers the base of the foot. Of course, the buttress 3 could just as well cover the base part of the foot only partially, for example by forming a hollow or one or more recesses in the base part 17 of the rigid buttress 3. In any case, the construction of the rigid buttress 3 according to the example shown in FIG. 3 allows the heel and the rear part of the base of the foot to be surrounded in the manner of a shell. By tightening a tightening system, which is not shown in the figures, and which can be constituted for example by lacing, the foot is pressed into the shell formed by the rigid buttress 3 and is then held securely at the heel.

Comme il est représenté sur la figure 3, la paroi 9 latérale et/ou la paroi 10 médiale du contrefort 3 rigide peuvent être pourvues d'évidements 18, ce qui permet une réduction du poids du contrefort 3 rigide tout en gardant sa rigidité.As shown in FIG. 3, the lateral wall 9 and / or the medial wall 10 of the rigid buttress 3 can be provided with recesses 18, which allows a reduction in the weight of the rigid buttress 3 while retaining its rigidity.

Dans l'exemple représenté dans la figure 4, le contrefort 3 rigide dépourvu de fond 17 et muni de rebords 19 s'étend à partir des bords inférieurs respectivement de la paroi 9 latérale et de la paroi 10 médiale, horizontalement vers l'intérieur. Ces rebords 19 transversaux servent à la fixation du contrefort par intercalation entre une première de montage de la tige 2 et la semelle externe. En outre, ces rebords 19 transversaux participent à la rigidification du contrefort 3 rigide, notamment en torsion. Bien entendu, ces rebords 19 transversaux peuvent être prévus assez larges de telle sorte qu'ils se rejoignent presque en ne laissant qu'une fente entre eux.In the example shown in Figure 4, the rigid buttress 3 without bottom 17 and provided with flanges 19 extends from the lower edges respectively of the side wall 9 and the medial wall 10, horizontally inward. These transverse flanges 19 serve for fixing the buttress by interposing between a first assembly of the rod 2 and the outer sole. In addition, these transverse flanges 19 participate in the stiffening of the rigid buttress 3, in particular in torsion. Of course, these transverse flanges 19 can be provided fairly wide so that they almost meet leaving only one slot between them.

La paroi 9 latérale du contrefort 3 rigide, dans l'exemple représenté dans les figures, peut s'étendre plus loin dans la direction longitudinale que la paroi 10 médiale en respectant l'orientation de la ligne de flexion naturelle dans la zone 4 métatarso-phalangienne, qui forme un angle aigu avec l'axe longitudinal d'un pied.The lateral wall 9 of the rigid buttress 3, in the example shown in the figures, can extend further in the longitudinal direction than the medial wall 10 while respecting the orientation of the natural flexion line in the metatarsal zone 4. phalangeal, which forms an acute angle with the longitudinal axis of a foot.

Dans certains cas il peut être avantageux de rallonger la paroi 10 médiale par rapport à la paroi 9 latérale pour créer un support amélioré du côté médial de la chaussure.In some cases it may be advantageous to lengthen the medial wall 10 relative to the lateral wall 9 to create an improved support on the medial side of the shoe.

Claims (13)

Chaussure de sport comportant une tige (2) munie d'un contrefort (3) arrière entourant le talon (11) et une semelle externe (5), caractérisée en ce que le contrefort (3) est rigide et sensiblement non flexible, et s'étend sur au moins un coté de la chaussure (1) jusqu'à la zone (4) de flexion dite métatarso-phalangienne.Sports shoe comprising a rod (2) provided with a rear buttress (3) surrounding the heel (11) and an outer sole (5), characterized in that the buttress (3) is rigid and substantially non-flexible, and s 'extends over at least one side of the shoe (1) to the area (4) of flexion called metatarsophalangeal. Chaussure de sport comportant une tige (2) munie d'un contrefort (3) arrière entourant le talon (11) et une semelle externe (5), notamment selon la revendication 1, caractérisée en ce que le contrefort (3) est rigide et sensiblement non flexible, et entoure le talon (11) et essentiellement la partie arrière de la base du pied (17) à la manière d'une coque.Sports shoe comprising a rod (2) provided with a rear buttress (3) surrounding the heel (11) and an outer sole (5), in particular according to claim 1, characterized in that the buttress (3) is rigid and substantially non-flexible, and surrounds the heel (11) and essentially the rear part of the base of the foot (17) in the manner of a shell. Chaussure selon l'une quelconque des revendications 1 et 2, caractérisée en ce que le contrefort (3) s'étend en hauteur jusqu'à un niveau au-dessous de la zone correspondant à la cheville (6).Shoe according to either of Claims 1 and 2, characterized in that the buttress (3) extends in height up to a level below the zone corresponding to the ankle (6). Chaussure selon l'une quelconque des revendications 1 à 3, caractérisée en ce que le contrefort (3) s'étend en hauteur jusqu'à un niveau situé sensiblement au-dessous de la zone correspondant à un axe (7) d'un collier (8) flexible de la chaussure.Shoe according to any one of claims 1 to 3, characterized in that the buttress (3) extends in height up to a level situated substantially below the zone corresponding to an axis (7) of a collar (8) flexible shoe. Chaussure selon l'une quelconque des revendications 1 à 4, caractérisée en ce que la paroi latérale (9) du contrefort (3) s'étend plus loin en direction longitudinale que la paroi médiale (10).Shoe according to any one of claims 1 to 4, characterized in that the side wall (9) of the buttress (3) extends further in the longitudinal direction than the medial wall (10). Chaussure selon l'une quelconque des revendications 1 à 4, caractérisée en ce que la paroi médiale (10) du contrefort (3) s'étend plus loin en direction longitudinale que la paroi latérale (9).Shoe according to any one of claims 1 to 4, characterized in that the medial wall (10) of the buttress (3) extends further in the longitudinal direction than the side wall (9). Chaussure selon l'une quelconque des revendications 1 à 6, caractérisée en ce que le la paroi du contrefort (3) dans la zone du talon (11) est plus basse que le niveau le plus haut du contrefort (3).Shoe according to any one of claims 1 to 6, characterized in that the wall of the buttress (3) in the heel area (11) is lower than the highest level of the buttress (3). Chaussure selon l'une quelconque des revendications 1 à 7, caractérisée en ce que le niveau le plus haut du contrefort (3) en direction verticale est situé dans la zone sensiblement au-dessous de la cheville (6).Shoe according to any one of claims 1 to 7, characterized in that the highest level of the buttress (3) in the vertical direction is located in the zone substantially below the ankle (6). Chaussure selon l'une quelconque des revendications 1 à 8, caractérisée en ce que le contrefort (3) et au moins la partie arrière de la semelle externe (5) forment un ensemble monobloc (16).Shoe according to any one of claims 1 to 8, characterized in that the buttress (3) and at least the rear part of the outer sole (5) form a monobloc assembly (16). Chaussure selon l'une quelconque des revendications 1 à 9, caractérisée en ce que le bord supérieur de la paroi latérale (9) et/ou médiale (10) du contrefort (3) décroît d'une manière continue pour joindre le bord de la semelle (5) externe à l'extrémité (24) avant du contrefort (3).Shoe according to any one of claims 1 to 9, characterized in that the upper edge of the side wall (9) and / or medial (10) of the buttress (3) decreases continuously to join the edge of the sole (5) external to the front end (24) of the buttress (3). Chaussure selon l'une quelconque des revendications 1 à 10, caractérisée en ce que le contrefort (3) rigide recouvre au moins partiellement un contrefort flexible (13).Shoe according to any one of claims 1 to 10, characterized in that the rigid buttress (3) at least partially covers a flexible buttress (13). Chaussure selon la revendication 11, caractérisée en ce que le contrefort (3) rigide est fixé sur le contrefort (13) flexible.Shoe according to claim 11, characterized in that the rigid buttress (3) is fixed to the flexible buttress (13). Chaussure selon la revendication 12, caractérisée en ce que le contrefort (3) rigide est fixé sur la tige (2) par l'intermédiaire du contrefort (13) flexible.Shoe according to claim 12, characterized in that the rigid buttress (3) is fixed to the upper (2) by means of the flexible buttress (13).
EP96119600A 1996-01-30 1996-12-06 Sport shoe Expired - Lifetime EP0787441B1 (en)

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EP01121908A EP1166668B1 (en) 1996-01-30 1996-12-06 Sportsshoe with a rigid heel stiffener fixed on a flexible heel stiffener

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FR9601250 1996-01-30
FR9601250A FR2743988B1 (en) 1996-01-30 1996-01-30 SPORTS SHOE

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EP (2) EP0787441B1 (en)
AT (2) ATE270830T1 (en)
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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002087371A3 (en) * 2001-04-26 2004-03-25 Benetton Spa A sports shoe
EP1310182A1 (en) 2001-11-13 2003-05-14 Salomon S.A. Sport shoe with reverse stitched upper
FR2832036A1 (en) 2001-11-13 2003-05-16 Salomon Sa SPORTS SHOE WITH UPPER SEWING UPPER
FR2923362A1 (en) * 2007-11-13 2009-05-15 Salomon Sa Soc Par Actions Sim IMPROVED ROD TIGHTENING SHOE
EP2060196A1 (en) * 2007-11-13 2009-05-20 Salomon S.A.S. Boot with improved leg tightening
FR2965458A1 (en) * 2010-09-30 2012-04-06 Salomon Sas REINFORCED SHOE
WO2012042131A3 (en) * 2010-09-30 2012-07-12 Salomon S.A.S. Reinforced shoe

Also Published As

Publication number Publication date
DE69632927T2 (en) 2005-07-28
CZ28297A3 (en) 1997-08-13
FR2743988B1 (en) 1998-03-20
EP1166668A3 (en) 2002-01-16
ATE270830T1 (en) 2004-07-15
US6076286A (en) 2000-06-20
US5884420A (en) 1999-03-23
DE69622015T2 (en) 2002-11-28
CA2195499A1 (en) 1997-07-31
EP1166668A2 (en) 2002-01-02
FR2743988A1 (en) 1997-08-01
EP0787441B1 (en) 2002-06-26
NO970275L (en) 1997-07-31
NO970275D0 (en) 1997-01-22
EP1166668B1 (en) 2004-07-14
ATE219636T1 (en) 2002-07-15
DE69632927D1 (en) 2004-08-19
DE69622015D1 (en) 2002-08-01
NO310092B1 (en) 2001-05-21
CZ289312B6 (en) 2001-12-12

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