EP0702907A1 - Innerboot for skiboots - Google Patents

Innerboot for skiboots Download PDF

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Publication number
EP0702907A1
EP0702907A1 EP95810509A EP95810509A EP0702907A1 EP 0702907 A1 EP0702907 A1 EP 0702907A1 EP 95810509 A EP95810509 A EP 95810509A EP 95810509 A EP95810509 A EP 95810509A EP 0702907 A1 EP0702907 A1 EP 0702907A1
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EP
European Patent Office
Prior art keywords
pins
zone
zones
liner according
liner
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EP95810509A
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German (de)
French (fr)
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EP0702907B1 (en
Inventor
Alessandro Condini
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Lange International SA
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Lange International SA
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    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00Footwear for sporting purposes
    • A43B5/04Ski or like boots
    • A43B5/0405Linings, paddings or insertions; Inner boots

Definitions

  • the subject of the present invention is a comfort boot for ski boots comprising a vamp enveloping the foot and a plastic rod intended to at least partially surround the lower leg and the internal face of which is provided with projections distributed over a part at less than its surface.
  • a ski boot liner must perform several functions, namely, the adaptation of the shell to the shape of the foot, thermal insulation, comfort and the interface function between the shell and the foot for the transmission of information. and orders between ski and foot and vice versa. These functions are largely contradictory if we consider that morphological adaptation and comfort suppose flexibility and compressibility, while the interface function supposes a close and rigid contact.
  • booties Basically two methods of manufacturing booties are known, molding and coupling of foams.
  • the molding provides the desired anatomical shape.
  • the comfort obtained is average.
  • the interface function it is very poorly fulfilled due to the uniform compressibility of the liner, that is to say the compressibility which is too high in the support zones used particularly for the transmission of the reactions of the ski and the foot and leg orders when skiing.
  • patent FR 2 690 814 is described a comfort liner having an at least partially extensible upper and on the external face of which are fixed a plurality of wedging elements in order to obtain a compromise between a controlled compressibility of the 'thickness of the liner, which may be different from one zone to another, and a transverse elastic extension of the upper to allow the passage of the foot without resorting to a tongue.
  • Wedging elements made of different materials are used in order to obtain different compressibility zones.
  • patent CH 608 349 it is also proposed to produce an inner liner essentially of expanded polyurethane provided on its internal face with projections coming directly into contact with the foot and the ankle.
  • the capacity for compression deformation and a variable density of distribution of the protrusions on the surface of the liner make it possible to create different zones of compressibility with the aim of simultaneously ensuring the comfort of the foot and a good grip of the latter necessary for precise driving. ski.
  • the distribution of the projections has a greater density in the region of the malleoli so as to obtain a greater capacity for deformation.
  • the projections therefore fulfill the function of a foam which would have a substantially greater thickness in the malleoli region and other comfort zones, while it would be thin in the other zones.
  • the object of the present invention is to obtain, essentially by molding, a liner that best meets the requirements of anatomical shape, comfort and technicality mentioned above.
  • the pins of different heights allow to obtain a relief adapting to the morphology of the skier's foot.
  • the studs can be in direct contact with the foot, but the liner is preferably provided with an interior foam lining covering the studs.
  • the variable height and, if necessary, the density of distribution of the pins and / or their variable section, in this case delimit a more or less large space in which the foam can penetrate during its compression, which also makes it possible to obtain zones having different characteristics with regard to the deformation capacity, the capacity for recovering the initial shape after cessation of compression, the reaction time to pressure, i.e. of the time measured until maximum deformation, this reaction time being decisive in the precision of the handling of the ski, and the capacity to adapt to the morphology, that is to say the capacity to deform while preserving still a certain compressibility, characteristic which one could call adaptability.
  • the invention makes it possible to obtain a slipper whose molded part, of variable thickness, adapts very well to the morphology of the foot and of the leg, good comfort and very good technicality due to the rigidity. selective support zones ensuring the interface function.
  • Figure 1 is a sectional view along I-I of Figure 2 through a ski boot fitted with a boot according to the invention.
  • Figure 2 is a cross-sectional view along II-II according to Figure 1, showing the shoe seen from above.
  • Figure 3 is a developed view in perspective of half of the plastic part provided with pins of the bootie of the shoe shown in Figures 1 and 2, that is to say, a bootie for the right foot.
  • Figures 1 and 2 give a schematic representation of a ski boot consisting of a shell 1 with variable volume and a rod 2 in the form of a collar.
  • the shell and the collar are for example made of polyurethane.
  • the shell 1 is provided with two tightening loops 3 and 4.
  • the same is true of the rod 2 of which a loop 5 has been shown in FIG. 2.
  • the loops have not been shown in FIG. 1, but recognizes therein two flaps 2a and 2b of the collar 2, flaps provided with the closure and tightening loops of the collar.
  • the shell 1 and the upper 2 house a comfort boot comprising an upper 7 surrounding the forefoot and the lower part of the heel and extending below the malleolus 8 of the foot 9 and of a rod consisting essentially of a plastic part 10 enveloping the rear of the leg and the ankle and extending on each side of the leg and the ankle and a tongue 6 covering a part 11 made of the same material as the part 10.
  • the parts 10 and 11 of the liner are provided with pins 12 directed inwards. As can be seen in FIG. 3, these pins 12, of slightly frustoconical shape, are not all of the same height and of the same diameter and the density of their distribution varies according to the zones considered.
  • Part 10 and part 11, fixed on the tongue 6, are furthermore coated internally with a layer of synthetic foam 13.
  • FIG. 1 schematically illustrates the perfect adaptation of the inner shape of the liner to the shape of the foot and the leg. As will be seen below, this adaptation is carried out without compression of sensitive areas and in a determined and controlled manner according to the areas
  • FIG. 3 represents the outer half of the part 10, that is to say the part s' spanning the outside of the right foot.
  • the other half is symmetrical, except for the deep cut 14 which separates the inner and outer parts in the area corresponding to the position of the Achilles tendon.
  • This cutout 14 does not extend along the axis of symmetry of the part 10, but it deviates from this axis of symmetry in the direction of the outside of the foot.
  • the pins 12 have come from molding with their support 10 and have a frustoconical shape.
  • the plastic used is for example polyurethane.
  • zones A, B, C, D and E There are three different types of zones designated by A, B, C, D and E.
  • the upper zone A, as well as zones B and C have only been represented by the marginal spikes of these zones.
  • the pins 12a of the zones A have an average diameter of 3 mm, a height of 4 mm and a pitch (center distance) of 6 mm.
  • the pins 12b in zone B have an average diameter of 4 mm, a height of 3 mm and a pitch of 6 mm.
  • the pins 12c of zone C have an average diameter of 5 mm, a height of 2 mm and a pitch of 7 mm.
  • the pins 12d in zone D have an average diameter of 2 mm, a height of 3 mm and a pitch of 4 mm.
  • the E zones are marginal transition zones having spikes of the same diameter and not the same as the neighboring zone, but of decreasing height.
  • the part 10 behaves like a part of variable thickness, more precisely as a part whose inner face has a relief of variable height.
  • the pins 12 define a depression M corresponding to the position of the malleolus. The latter can therefore be accommodated in this depression M.
  • the transition zones E adjoining the cutout 14 forms a housing for the Achilles tendon.
  • the relief formed by the pins 12 ensures an adaptation of the part 10 to the morphology of the lower leg.
  • the parts of this foam which do not bear on the pins penetrate into the spaces located between the pins by undergoing a deformation which varies from zero in the center, to a maximum value equal to the compression undergone on the pins.
  • the degree of penetration of the foam between the pins depends on the volume of the space between the pins, that is to say on the height, the diameter and the density of distribution of the pins. The degree of penetration of the foam contributes to giving the liner a particular behavior in compression.
  • zones A are zones having a relatively large deformation capacity. These are comfortable support areas. This is particularly the case of the posterior support zone A for the support of the calf.
  • the zones C are zones with short reaction time having a low capacity to deform and a low adaptability to the morphology. Zones C are therefore much more capable of transmitting the pressures involved in guiding the ski.
  • Zone B is an zone with characteristics intermediate between those of zones A and those of zones C.
  • additional zones F consisting of pins having a diameter of 3 mm, a height of 0.2 mm and a pitch of 6 mm.
  • the pins is made of one or more materials of different stiffness than that of the material forming the support of the pins. It is thus possible to obtain different compressibility zones by the sole choice of the suitable material. In this case, the pins can therefore have a uniform cross-section and density.
  • the part 10 supporting the pins can itself be made from a single material or from several different materials.
  • the effect obtained by the non-uniformity of the pins could be further amplified by the use of foams of different densities according to the zones.
  • the liner may not include foam 13, the pins 12 then being directly in contact with the foot or simply covered with a woven material or a felt. In this case, we would still take advantage of the particular structure of the liner, that is to say the internal relief adapting to the morphology of the foot, the variable ability from one area to another to deform and to adapt to the morphology of the foot by deformation.
  • the frustoconical shape of the pins is dictated by practical reasons of demolding. In principle, the pins could have a cylindrical shape, or even a non-circular section. The ends of the pins could be curved.

Abstract

The ski boot lining consists of an upper (7) which covers the foot and a leg section (2,6) of plastics with inward-facing studs (12) which are of variable height, distribution density and material, depending on the area of the leg or foot covered by them. For example, in the area of the ankle bones the studs reduce in height and leave a zone without studs in the centre. The studs (12) are truncated conical in shape and are covered with a layer (13) of a foam material of varying density, depending on the area covered.

Description

La présente invention a pour objet un chausson de confort pour chaussure de ski comprenant une empeigne enveloppant le pied et une tige en matière plastique destinée à entourer au moins partiellement le bas de jambe et dont la face interne est munie de saillies réparties sur une partie au moins de sa surface.The subject of the present invention is a comfort boot for ski boots comprising a vamp enveloping the foot and a plastic rod intended to at least partially surround the lower leg and the internal face of which is provided with projections distributed over a part at less than its surface.

Un chausson de chaussure de ski doit assurer plusieurs fonctions à savoir, l'adaptation de la coque à la forme du pied, l'isolation thermique, le confort et la fonction d'interface entre la coque et le pied pour la transmission d'informations et d'ordres entre le ski et le pied et inversement. Ces fonctions sont en grande partie antinomiques si l'on considère que l'adaptation morphologique et le confort supposent souplesse et compressibilité, tandis que la fonction d'interface suppose un contact étroit et rigide.A ski boot liner must perform several functions, namely, the adaptation of the shell to the shape of the foot, thermal insulation, comfort and the interface function between the shell and the foot for the transmission of information. and orders between ski and foot and vice versa. These functions are largely contradictory if we consider that morphological adaptation and comfort suppose flexibility and compressibility, while the interface function supposes a close and rigid contact.

On connaît essentiellement deux méthodes de fabrication de chaussons, le moulage et le couplage de mousses. Le moulage permet d'obtenir la forme anatomique désirée. Le confort obtenu est moyen. Quant à la fonction d'interface elle est très mal remplie en raison de la compressibliité uniforme du chausson, c'est-à-dire de la compressibilité trop élevée dans des zones d'appui utilisées particulièrement pour la transmission des réactions du ski et des ordres du pied et de la jambe au ski.Basically two methods of manufacturing booties are known, molding and coupling of foams. The molding provides the desired anatomical shape. The comfort obtained is average. As for the interface function, it is very poorly fulfilled due to the uniform compressibility of the liner, that is to say the compressibility which is too high in the support zones used particularly for the transmission of the reactions of the ski and the foot and leg orders when skiing.

Cette technique a été améliorée par l'adjonction, par surmoulage, d'une mousse de confort, mais, malgré l'augmentation sensible du prix de revient, un tel chausson ne remplit pas encore les conditions souhaitées.This technique has been improved by the addition, by overmolding, of a comfort foam, but, despite the significant increase in the cost price, such a liner does not yet meet the desired conditions.

Le couplage de mousses de qualités différentes permet d'obtenir des chaussons de forme approximativement anatomique et d'un bon confort. La technicité, c'est-à-dire la fonction d'interface, peut être considérée de moyenne à bonne, mais le coût de tels chaussons est relativement élevé.The coupling of foam of different qualities makes it possible to obtain slippers of approximately anatomical shape and of good comfort. The technicality, that is to say the interface function, can be considered average to good, but the cost of such slippers is relatively high.

Dans le brevet FR 2 690 814 est décrit un chausson de confort présentant une tige au moins partiellement extensible et sur la face extérieure de laquelle sont fixés une pluralité d'éléments de calage dans le but d'obtenir un compromis entre une compressibilité contrôlée de l'épaisseur du chausson, susceptible d'être différente d'une zone à l'autre, et une extension élastique transversale de la tige pour permettre le passage du pied sans recourir à une languette. Des éléments de calage en matériaux différents sont utilisés afin d'obtenir des zones de compressibilité différentes.In patent FR 2 690 814 is described a comfort liner having an at least partially extensible upper and on the external face of which are fixed a plurality of wedging elements in order to obtain a compromise between a controlled compressibility of the 'thickness of the liner, which may be different from one zone to another, and a transverse elastic extension of the upper to allow the passage of the foot without resorting to a tongue. Wedging elements made of different materials are used in order to obtain different compressibility zones.

Dans le brevet CH 608 349 il est par ailleurs proposé de réaliser un chausson intérieur essentiellement en polyuréthanne expansé muni sur sa face interne de saillies venant directement en contact avec le pied et la cheville. La capacité de déformation par compression et une densité variable de distribution des saillies sur la surface du chausson permettent de créer des zones de compressibilité différentes dans le but d'assurer simultanément le confort du pied et une bonne tenue de ce dernier nécessaire à une conduite précise du ski. La distribution des saillies présente une plus grande densité dans la région des malléoles de manière à obtenir une plus grande capacité de déformation. Les saillies remplissent donc la fonction d'une mousse qui présenterait une épaisseur sensiblement plus grande dans la région des malléoles et autres zones de confort, tandis qu'elle serait mince dans les autres zones.In patent CH 608 349 it is also proposed to produce an inner liner essentially of expanded polyurethane provided on its internal face with projections coming directly into contact with the foot and the ankle. The capacity for compression deformation and a variable density of distribution of the protrusions on the surface of the liner make it possible to create different zones of compressibility with the aim of simultaneously ensuring the comfort of the foot and a good grip of the latter necessary for precise driving. ski. The distribution of the projections has a greater density in the region of the malleoli so as to obtain a greater capacity for deformation. The projections therefore fulfill the function of a foam which would have a substantially greater thickness in the malleoli region and other comfort zones, while it would be thin in the other zones.

La présente invention a pour but d'obtenir, essentiellement par moulage, un chausson répondant le mieux possible aux exigences de forme anatomique, de confort et de technicité susmentionnées.The object of the present invention is to obtain, essentially by molding, a liner that best meets the requirements of anatomical shape, comfort and technicality mentioned above.

Le chausson selon l'invention est caractérisé en ce que les saillies sont constituées de picots dont la hauteur, et l'un au moins des paramètres suivants :

  • la section moyenne,
  • la densité de distribution,
  • la nature du matériau

varient selon la zone considérée, de telle sorte que la tige présente des zones d'épaisseur et de compressibilité différentes.The liner according to the invention is characterized in that the projections consist of pins whose height, and at least one of the following parameters:
  • the middle section,
  • distribution density,
  • the nature of the material

vary according to the zone considered, so that the rod has zones of different thickness and compressibility.

Les picots de hauteurs différentes permettent d'obtenir un relief s'adaptant à la morphologie du pied du skieur.The pins of different heights allow to obtain a relief adapting to the morphology of the skier's foot.

Les picots peuvent être directement en contact avec le pied, mais le chausson est de préférence muni d'une garniture intérieure en mousse recouvrant les picots. La hauteur variable et, le cas échéant, la densité de distribution des picots et/ou leur section variable, délimitent dans ce cas un espace plus ou moins grand dans lequel la mousse peut pénétrer lors de sa compression, ce qui permet également d'obtenir des zones présentant des caractéristiques différentes en ce qui concerne la capacité de déformation, la capacité de récupération de la forme initiale après cessation de la compression, le temps de réaction à la pression, c'est-à-dire du temps mesuré jusqu'à déformation maximale, ce temps de réaction étant déterminant dans la précision de la conduite du ski, et la capacité de s'adapter à la morphologie, c'est-à-dire la capacité de se déformer tout en conservant encore une certaine compressibilité, caractéristique que l'on pourrait appeler adaptabilité.The studs can be in direct contact with the foot, but the liner is preferably provided with an interior foam lining covering the studs. The variable height and, if necessary, the density of distribution of the pins and / or their variable section, in this case delimit a more or less large space in which the foam can penetrate during its compression, which also makes it possible to obtain zones having different characteristics with regard to the deformation capacity, the capacity for recovering the initial shape after cessation of compression, the reaction time to pressure, i.e. of the time measured until maximum deformation, this reaction time being decisive in the precision of the handling of the ski, and the capacity to adapt to the morphology, that is to say the capacity to deform while preserving still a certain compressibility, characteristic which one could call adaptability.

En résumé, l'invention permet d'obtenir un chausson dont la partie moulée, d'épaisseur variable, s'adapte très bien à la morphologie du pied et de la jambe, un bon confort et une très bonne technicité en raison de la rigidité sélective des zones d'appui assurant la fonction d'interface.In summary, the invention makes it possible to obtain a slipper whose molded part, of variable thickness, adapts very well to the morphology of the foot and of the leg, good comfort and very good technicality due to the rigidity. selective support zones ensuring the interface function.

Le dessin annexé représente, à titre d'exemple, une forme d'exécution de l'invention.The accompanying drawing shows, by way of example, an embodiment of the invention.

La figure 1 est une vue en coupe selon I-I de la figure 2 à travers une chaussure de ski équipée d'un chausson selon l'invention.Figure 1 is a sectional view along I-I of Figure 2 through a ski boot fitted with a boot according to the invention.

La figure 2 est une vue en coupe transversale selon II-II selon figure 1, montrant la chaussure vue de dessus.Figure 2 is a cross-sectional view along II-II according to Figure 1, showing the shoe seen from above.

La figure 3 est une vue développée, en perspective cavalière de la moitié de la partie plastique munie de picots du chausson de la chaussure représentée aux figures 1 et 2, c'est-à-dire d'un chausson destiné au pied droit.Figure 3 is a developed view in perspective of half of the plastic part provided with pins of the bootie of the shoe shown in Figures 1 and 2, that is to say, a bootie for the right foot.

Les figures 1 et 2 donnent une représentation schématique d'une chaussure de ski constituée d'une coque 1 à volume variable et d'une tige 2 en forme de collier. La coque et le collier sont par exemple en polyuréthanne.Figures 1 and 2 give a schematic representation of a ski boot consisting of a shell 1 with variable volume and a rod 2 in the form of a collar. The shell and the collar are for example made of polyurethane.

La coque 1 est munie de deux boucles de serrage 3 et 4. Il en est de même de la tige 2 dont on a représenté une boucle 5 à la figure 2. Les boucles n'ont pas été représentées à la figure 1, mais on reconnaît dans celle-ci deux rabats 2a et 2b du collier 2, rabats munis des boucles de fermeture et de serrage du collier.The shell 1 is provided with two tightening loops 3 and 4. The same is true of the rod 2 of which a loop 5 has been shown in FIG. 2. The loops have not been shown in FIG. 1, but recognizes therein two flaps 2a and 2b of the collar 2, flaps provided with the closure and tightening loops of the collar.

La coque 1 et la tige 2 abritent un chausson de confort comprenant une empeigne 7 entourant l'avant-pied et la partie inférieure du talon et s'étendant en-dessous de la malléole 8 du pied 9 et d'une tige constituée essentiellement d'une partie 10 en matière plastique enveloppant l'arrière de la jambe et de la cheville et s'étendant de chaque côté de la jambe et de la cheville et d'une languette 6 recouvrant une partie 11 en même matériau que la partie 10. Les parties 10 et 11 du chausson sont munies de picots 12 dirigés vers l'intérieur. Comme ceci est visible à la figure 3, ces picots 12, de forme légèrement tronconique, ne sont pas tous de même hauteur et de même diamètre et la densité de leur distribution varie selon les zones considérées. La partie 10 et la partie 11, fixée sur la languette 6, sont en outre revêtues intérieurement d'une couche de mousse synthétique 13. La figure 1 illustre schématiquement la parfaite adaptation de la forme intérieure du chausson à la forme du pied et de la jambe. Comme on le verra plus loin, cette adaptation est réalisée sans compression de zones sensibles et de façon déterminée et contrôlée selon les zones du bas de jambe.The shell 1 and the upper 2 house a comfort boot comprising an upper 7 surrounding the forefoot and the lower part of the heel and extending below the malleolus 8 of the foot 9 and of a rod consisting essentially of a plastic part 10 enveloping the rear of the leg and the ankle and extending on each side of the leg and the ankle and a tongue 6 covering a part 11 made of the same material as the part 10. The parts 10 and 11 of the liner are provided with pins 12 directed inwards. As can be seen in FIG. 3, these pins 12, of slightly frustoconical shape, are not all of the same height and of the same diameter and the density of their distribution varies according to the zones considered. Part 10 and part 11, fixed on the tongue 6, are furthermore coated internally with a layer of synthetic foam 13. FIG. 1 schematically illustrates the perfect adaptation of the inner shape of the liner to the shape of the foot and the leg. As will be seen below, this adaptation is carried out without compression of sensitive areas and in a determined and controlled manner according to the areas of the lower leg.

La hauteur et le diamètre moyen variable des picots 12 ainsi que leur distribution apparaisent clairement sur la vue en perspective cavalière représentée à la figure 3. Cette figure représente la moitié extérieure de la partie 10, c'est-à-dire la partie s'étendant sur le côté extérieur du pied droit. L'autre moitié est symétrique, sauf en ce qui concerne la profonde découpe 14 qui sépare les parties intérieure et extérieure dans la zone correspondant à la position du tendon d'Achille. Cette découpe 14 ne s'étend pas selon l'axe de symétrie de la partie 10, mais elle s'écarte de cette axe de symétrie en direction du côté extérieur du pied.The height and the variable mean diameter of the pins 12 as well as their distribution appear clearly on the perspective view shown in FIG. 3. This figure represents the outer half of the part 10, that is to say the part s' spanning the outside of the right foot. The other half is symmetrical, except for the deep cut 14 which separates the inner and outer parts in the area corresponding to the position of the Achilles tendon. This cutout 14 does not extend along the axis of symmetry of the part 10, but it deviates from this axis of symmetry in the direction of the outside of the foot.

Les picots 12 sont venus de moulage avec leur support 10 et présentent une forme tronconique. Le plastique utilisé est par exemple du polyuréthanne.The pins 12 have come from molding with their support 10 and have a frustoconical shape. The plastic used is for example polyurethane.

On distingue trois types différents de zones désignées par A, B, C, D et E. La zone supérieure A, ainsi que les zones B et C n'ont été représentées que par les picots marginaux de ces zones.There are three different types of zones designated by A, B, C, D and E. The upper zone A, as well as zones B and C have only been represented by the marginal spikes of these zones.

Les picots 12a des zones A ont un diamètre moyen de 3 mm, une hauteur de 4 mm et un pas (entraxe) de 6 mm.The pins 12a of the zones A have an average diameter of 3 mm, a height of 4 mm and a pitch (center distance) of 6 mm.

Les picots 12b de la zone B ont un diamètre moyen de 4 mm, une hauteur de 3 mm et un pas de 6 mm.The pins 12b in zone B have an average diameter of 4 mm, a height of 3 mm and a pitch of 6 mm.

Les picots 12c de la zone C ont un diamètre moyen de 5 mm, une hauteur de 2 mm et un pas de 7 mm.The pins 12c of zone C have an average diameter of 5 mm, a height of 2 mm and a pitch of 7 mm.

Les picots 12d de la zone D ont un diamètre moyen de 2 mm, une hauteur de 3 mm et un pas de 4 mm.The pins 12d in zone D have an average diameter of 2 mm, a height of 3 mm and a pitch of 4 mm.

Les zones E sont des zones marginales de transition présentant des picots de même diamètre et de même pas que la zone voisine, mais de hauteur dégressive.The E zones are marginal transition zones having spikes of the same diameter and not the same as the neighboring zone, but of decreasing height.

En raison de la hauteur différente des picots selon les zones considérées, la pièce 10 se comporte comme une pièce d'épaisseur variable, plus précisément comme une pièce dont la face intérieure présente un relief de hauteur variable. En particulier, les picots 12 délimitent une dépression M correspondant à la position de la malléole. Cette dernière peut donc venir se loger dans cette dépression M. De même, les zones de transition E jouxtant la découpe 14 forme un logement pour le tendon d'Achille. D'une manière générale, le relief formé par les picots 12 assure une adaptation de la pièce 10 à la morphologie du bas de jambe.Due to the different height of the pins according to the zones considered, the part 10 behaves like a part of variable thickness, more precisely as a part whose inner face has a relief of variable height. In particular, the pins 12 define a depression M corresponding to the position of the malleolus. The latter can therefore be accommodated in this depression M. Similarly, the transition zones E adjoining the cutout 14 forms a housing for the Achilles tendon. Generally, the relief formed by the pins 12 ensures an adaptation of the part 10 to the morphology of the lower leg.

Lorsque la mousse 13 qui recouvre les picots 12 est comprimée, les parties de cette mousse qui ne prennent pas appui sur les picots pénètrent dans les espaces situés entre les picots en subissant une déformation qui varie de zéro au centre, à une valeur maximale égale à la compression subie sur les picots. Le degré de pénétration de la mousse entre les picots dépend du volume de l'espace entre les picots, c'est-à-dire de la hauteur, du diamètre et de la densité de distribution des picots. Le degré de pénétration de la mousse contribue à donner au chausson un comportement particulier en compression.When the foam 13 which covers the pins 12 is compressed, the parts of this foam which do not bear on the pins penetrate into the spaces located between the pins by undergoing a deformation which varies from zero in the center, to a maximum value equal to the compression undergone on the pins. The degree of penetration of the foam between the pins depends on the volume of the space between the pins, that is to say on the height, the diameter and the density of distribution of the pins. The degree of penetration of the foam contributes to giving the liner a particular behavior in compression.

En faisant varier les paramètres, diamètre, hauteur et pas des picots 12, il est possible d'obtenir des zones présentant une capacité de se déformer, un temps de réaction à la pression et une adaptabilité à la morphologie du pied variant d'une zone à l'autre. Plus précisément, plus les picots sont hauts, plus la capacité du chausson de se déformer est grande; plus leur diamètre est grand, plus le temps de réaction du chausson est court; plus le pas est petit, plus l'adaptabilité du chausson est grande.By varying the parameters, diameter, height and not of the pins 12, it is possible to obtain zones having a capacity to deform, a reaction time to pressure and an adaptability to the morphology of the foot varying from one zone to the other. More specifically, the higher the pins, the greater the ability of the boot to deform; the larger their diameter, the shorter the reaction time of the bootie; the smaller the pitch, the greater the adaptability of the liner.

Par conséquent, les zones A sont des zones présentant une capacité de déformation relativement grande. Ce sont des zones d'appui confortables. C'est notamment le cas de la zone d'appui postérieure A pour l'appui du bas de mollet. Par contre, les zones C sont des zones à temps de réaction court présentant une faible capacité de se déformer et une faible adaptabilité à la morphologie. Les zones C sont donc beaucoup plus aptes à transmettre les pressions intervenant dans le guidage du ski. La zone B est une zone présentant des caractéristiques intermédiaires entre celles des zones A et celles des zones C.Consequently, zones A are zones having a relatively large deformation capacity. These are comfortable support areas. This is particularly the case of the posterior support zone A for the support of the calf. On the other hand, the zones C are zones with short reaction time having a low capacity to deform and a low adaptability to the morphology. Zones C are therefore much more capable of transmitting the pressures involved in guiding the ski. Zone B is an zone with characteristics intermediate between those of zones A and those of zones C.

Selon une variante d'exécution, il est possible de prévoir des zones supplémentaires F constituées de picots présentant un diamètre de 3 mm, une hauteur de 0,2 mm et un pas de 6 mm.According to an alternative embodiment, it is possible to provide additional zones F consisting of pins having a diameter of 3 mm, a height of 0.2 mm and a pitch of 6 mm.

Les techniques actuelles, dites de bi- ou multi-injection, permettent d'obtenir des pièces en matière plastique constituées de matériaux différents. Selon une variante d'exécution de l'invention appliquant cette technique, une partie au moins des picots est réalisée en un ou plusieurs matériaux de rigidité différente de celle du matériau formant le support des picots. Il est ainsi possible d'obtenir des zones de compressibilités différentes par le seul choix du matériau adéquat. Dans ce cas, les picots peuvent donc présenter une section et une densité de distribution uniformes. La partie 10 supportant les picots peut être elle-même en un seul matériau ou en plusieurs matériaux différents.Current techniques, called bi- or multi-injection, make it possible to obtain plastic parts made of different materials. According to an alternative embodiment of the invention applying this technique, at least part of the pins is made of one or more materials of different stiffness than that of the material forming the support of the pins. It is thus possible to obtain different compressibility zones by the sole choice of the suitable material. In this case, the pins can therefore have a uniform cross-section and density. The part 10 supporting the pins can itself be made from a single material or from several different materials.

L'effet obtenu par la non uniformité des picots pourrait être encore amplifié par l'emploi de mousses de densités différentes selon les zones.The effect obtained by the non-uniformity of the pins could be further amplified by the use of foams of different densities according to the zones.

Le chausson pourrait ne pas comporter de mousse 13, les picots 12 étant alors directement en contact avec le pied ou simplement recouverts d'un matériau tissé ou d'un feutre. Dans ce cas, on tirerait encore profit de la structure particulière du chausson, c'est-à-dire du relief interne s'adaptant à la morphologie du pied, de la capacité variable d'une zone à l'autre de se déformer et de s'adapter à la morphologie du pied par déformation.The liner may not include foam 13, the pins 12 then being directly in contact with the foot or simply covered with a woven material or a felt. In this case, we would still take advantage of the particular structure of the liner, that is to say the internal relief adapting to the morphology of the foot, the variable ability from one area to another to deform and to adapt to the morphology of the foot by deformation.

La forme tronconique des picots est dictée par des raisons pratiques de démoulage. En principe, les picots pourraient présenter une forme cylindrique, voire une section non circulaire. L'extrémité des picots pourrait être bombée.The frustoconical shape of the pins is dictated by practical reasons of demolding. In principle, the pins could have a cylindrical shape, or even a non-circular section. The ends of the pins could be curved.

Claims (11)

Chausson de confort pour chaussure de ski comprenant une empeigne (7) enveloppant le pied et une tige (2, 6) en matière plastique destinée à entourer au moins partiellement le bas de la jambe et dont la face interne est munie de saillies (12) réparties sur une partie au moins de sa surface, caractérisé en ce que les saillies sont constituées de picots (12) dont la hauteur, et l'un au moins des paramètres suivants : - la section moyenne, - la densité de distribution, - la nature du matériau varient selon la zone considérée, de telle sorte que la tige présente des zones d'épaisseur et de compressibilité différentes.Comfort boot for ski boot comprising a vamp (7) enveloping the foot and a rod (2, 6) made of plastic material intended to at least partially surround the lower leg and the internal face of which is provided with projections (12) distributed over at least part of its surface, characterized in that the projections consist of pins (12) whose height, and at least one of the following parameters: - the middle section, - the density of distribution, - the nature of the material vary according to the zone considered, so that the rod has zones of different thickness and compressibility. Chausson selon la revendication 1, caractérisé en ce que les picots sont venus de moulage avec la tige.Liner according to claim 1, characterized in that the pins have come from molding with the upper. Chausson selon la revendication 2, caractérisé en ce que les picots sont de forme tronconique.Liner according to claim 2, characterized in that the pins are of frustoconical shape. Chausson selon la revendication 3, caractérisé en ce que les picots présentent un diamètre moyen différent selon la zone considérée.Liner according to claim 3, characterized in that the pins have a different average diameter depending on the area considered. Chausson selon la revendication 4, caractérisé en ce que la région de la tige correspondant à la position des malléoles présente des picots de hauteur dégressive entourant une zone (M) exempte de picots, zone correspondant à l'emplacement des malléoles.Liner according to claim 4, characterized in that the region of the upper corresponding to the position of the malleoli has spikes of decreasing height surrounding an area (M) free of spikes, area corresponding to the location of the malleoli. Chausson selon la revendication 5, caractérisé en ce que la zone supérieure du dos de la tige présente une zone d'appui et de confort (A) relativement plus compressible que la zone inférieure (B) du dos et que les zones latérales (B).Liner according to claim 5, characterized in that the upper zone of the back of the upper has a support and comfort zone (A) relatively more compressible than the lower zone (B) of the back and that the lateral zones (B) . Chausson selon la revendication 1, dans lequel la nature du matériau des picots varie selon la zone considérée, caractérisé en ce que la nature du matériau plastique supportant les picots varie également selon la zone considérée.Liner according to claim 1, in which the nature of the material of the pins varies according to the zone considered, characterized in that the nature of the plastic material supporting the pins also varies according to the zone considered. Chausson selon la revendication 1, dans lequel la nature du matériau des picots varie selon la zone considérée, caractérisé en ce que la nature du matériau supportant les picots est uniforme.Liner according to claim 1, in which the nature of the material of the pins varies according to the zone considered, characterized in that the nature of the material supporting the pins is uniform. Chausson selon l'une des revendications 1 à 8, caractérisé en ce que la tige est garnie intérieurement d'une mousse directement en contact avec les picots.Slipper according to one of claims 1 to 8, characterized in that the upper is lined internally with a foam directly in contact with the pins. Chausson selon la revendication 9, caractérisé en ce que la mousse présente une densité variable selon les zones considérées.Slipper according to claim 9, characterized in that the foam has a variable density depending on the zones considered. Chausson selon l'une des revendications 1 à 10, caractérisé en ce que la tige est munie d'une languette (6) dont la face interne est également munie de picots (12).Liner according to one of claims 1 to 10, characterized in that the upper is provided with a tongue (6), the internal face of which is also provided with pins (12).
EP95810509A 1994-09-22 1995-08-14 Innerboot for skiboots Expired - Lifetime EP0702907B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH02886/94A CH690017A5 (en) 1994-09-22 1994-09-22 Comfort boot for a ski boot.
CH2886/94 1994-09-22

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EP0702907A1 true EP0702907A1 (en) 1996-03-27
EP0702907B1 EP0702907B1 (en) 1998-12-30

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EP95810509A Expired - Lifetime EP0702907B1 (en) 1994-09-22 1995-08-14 Innerboot for skiboots

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US (1) US5682686A (en)
EP (1) EP0702907B1 (en)
JP (1) JPH08224101A (en)
CH (1) CH690017A5 (en)
DE (1) DE69506976T2 (en)

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US11523656B2 (en) 2017-04-21 2022-12-13 Nike, Inc. Sole structure with proprioceptive elements and method of manufacturing a sole structure

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US11523656B2 (en) 2017-04-21 2022-12-13 Nike, Inc. Sole structure with proprioceptive elements and method of manufacturing a sole structure

Also Published As

Publication number Publication date
US5682686A (en) 1997-11-04
CH690017A5 (en) 2000-03-31
DE69506976T2 (en) 1999-06-17
EP0702907B1 (en) 1998-12-30
DE69506976D1 (en) 1999-02-11
JPH08224101A (en) 1996-09-03

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