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EP0456965A1 - Ski and method of manufacturing same - Google Patents

Ski and method of manufacturing same Download PDF

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Publication number
EP0456965A1
EP0456965A1 EP91101971A EP91101971A EP0456965A1 EP 0456965 A1 EP0456965 A1 EP 0456965A1 EP 91101971 A EP91101971 A EP 91101971A EP 91101971 A EP91101971 A EP 91101971A EP 0456965 A1 EP0456965 A1 EP 0456965A1
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EP
European Patent Office
Prior art keywords
assembly
sub
ski
layer
copolymer
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Granted
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EP91101971A
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German (de)
French (fr)
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EP0456965B1 (en
Inventor
Gilles Recher
Pierre-Yves Lavorel
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Salomon SAS
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Salomon SAS
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Priority to AT91101971T priority Critical patent/ATE100726T1/en
Publication of EP0456965A1 publication Critical patent/EP0456965A1/en
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/12—Making thereof; Selection of particular materials
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/003—Structure, covering or decoration of the upper ski surface

Definitions

  • the present invention relates to a ski and its manufacturing process.
  • a ski generally has one or more upper layers of decoration and protection against external aggressions, sometimes extending laterally to cover the edges of the ski.
  • the present invention aims to achieve an upper decoration and protection element, of a lower cost, resistant to external aggressions and to hot creep, compatible with the materials generally used in mechanical reinforcements and also making it possible to use all modern printing processes, such as sublimation for example.
  • the invention relates to a ski consisting of an upper decoration and protection sub-assembly characterized in that it comprises a lower layer, consisting of a copolymer of styrene and carboxylic acid or an anhydrous of carboxylic acid or an alloy of this copolymer, on which adheres at least one upper layer consisting of a polyamide.
  • the invention also relates to the method of manufacturing such a ski.
  • FIG. 1 shows in perspective a ski made according to the present invention.
  • This ski comprises, in a traditional manner, an upper face 1, a lower face 2 or sliding surface, two lateral faces 3 and 4, and a front end curved upwards, in the shape of a spatula 5.
  • a decoration 6, schematically represented is visible from the outside on the upper face 1 and the lateral faces 3 and 4.
  • FIG. 2 illustrates an example of skiing in an embodiment according to which there is shown an upper sub-assembly 7 for decoration and protection made up of two layers 71 and 72; one, lower 71, a copolymer of styrene and carboxylic acid or an anhydrous carboxylic acid; the other, upper 72, made of polyamide.
  • the lower layer 71 is an opaque plastic material with a density close to 1, and preferably consists of a copolymer of styrene and maleic anhydride. It can optionally be modified or loaded by any means well known to those skilled in the art so as to increase its mechanical characteristics. Thus, provision can be made for the lower layer 71 to consist of an alloy of a copolymer of styrene and maleic anhydride, and of an elastomer for example. In the type of fillers which may be suitable, mention may be made of green balls, green fiber, carbon fiber or the like.
  • This copolymer has very good adhesion capacities with the upper layer 72.
  • the polyamide which constitutes the latter is preferably chosen from polyamides 11. It is transparent, rigid and has good resistance to external conditions. It is, on the other hand, easily sublimable.
  • Each layer 71 and 72 has a thickness of between 0.1 and 1 mm approximately.
  • FIG. 3 represents a sectional view of the detailed structure of a ski according to another embodiment of the invention in which the upper decoration and protection assembly 7 extends laterally up to the level of the edges 8 and a a section whose shape is substantially that of an inverted U.
  • This construction has the advantage of being able to apply or extend the decoration on the lateral faces 3 and 4 of the ski.
  • the decoration and protection sub-assembly 7 is integral with an upper reinforcement layer of the mechanical sub-assembly 9 by means of a layer of adhesive, for example.
  • the mechanical sub-assembly 9 comprises an upper reinforcing layer 91 consisting of a textile sheet of reinforcement and a thermosetting matrix such as an epoxy, polyester or polyurethane resin or a thermoplastic matrix.
  • the matrix has excellent adhesion properties with the lower layer of copolymer of the decoration sub-assembly, which eliminates the need for an additional adhesive interface.
  • the lower mechanical sub-assembly 9 brings together all the elements necessary for the strength of the ski, including a sliding sole 94, generally made of polyethylene, edges 8, a lower reinforcement 93, a core 92, at least one upper reinforcement layer 91.
  • a sliding sole 94 generally made of polyethylene
  • edges 8 edges 8
  • a lower reinforcement 93 a core 92
  • at least one upper reinforcement layer 91 The example of the structure of FIG. 3 is in no way limiting and is given only by way of example.
  • the invention also resides in the method of manufacturing such a ski, consisting of assembling the upper decoration sub-assembly 7 to the lower mechanical sub-assembly 9 and comprises a prior step of manufacturing the decoration sub-assembly.
  • This step makes it possible to obtain adhesion of the upper layer 72 of polyamide, and the lower layer 71 of a copolymer of styrene and of carboxylic acid or an anhydrous of carboxylic acid.
  • the bilayer obtained meets the normally recognized bonding requirements of a laminate for the manufacture of a ski.
  • this preliminary manufacturing step includes a final decoration phase. This can be achieved by the sublimation process described by patent No. 87 13552 of the applicant for example.
  • the decoration sub-assembly thus formed is applied to the lower mechanical sub-assembly 9 and particularly to at least part of an upper reinforcing layer 91 of the sub-assembly.
  • the polymer layer 71 can extend laterally beyond the reinforcement by adhering to other elements, such as binders, edges, or the like.
  • the assembly step may preferably include an actual molding phase during which the various elements are subjected to high pressures and temperatures. Adhesion is particularly effective when the upper reinforcement layer consists of a textile sheet pre-impregnated with a resin matrix thermosetting, not fully crosslinked, or a matrix of thermoplastic resin.
  • Epoxy, polyester, or polyurethane resin matrices generally give the best results when used with a copolymer of styrene and maleic anhydride, modified or not. It is the molding operation which makes it possible to reactivate the final crosslinking and to cause adhesion in the case of a matrix of thermosetting resin.
  • the implementation of the molding operation can be different depending on the process; an example of a process for manufacturing a ski, the core of which is injected, is described in patent No. 89 15664 of the applicant.
  • the molding phase is not carried out when the elements of the mechanical sub-assembly are produced beforehand and then assembled by gluing.

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  • Laminated Bodies (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Polymerisation Methods In General (AREA)
  • Polyurethanes Or Polyureas (AREA)

Abstract

The invention relates to a ski and a method of manufacturing it, consisting of an upper decorative and protective subassembly and of a mechanical lower subassembly. <??>The decorative and protective subassembly is a twin layer consisting of a polyamide, of a styrene copolymer, and of a carboxylic acid or an anhydride thereof or an alloy containing this copolymer. This twin layer may be coextruded and has excellent properties of adhesion with the mechanical lower subassembly during the operation of moulding of the ski. <IMAGE>

Description

La présente invention concerne un ski et son procédé de fabrication.The present invention relates to a ski and its manufacturing process.

Un ski présente généralement une ou plusieurs couches supérieures de décoration et de protection contre les agressions extérieures, s'étendant parfois latéralement pour venir recouvrir les chants du ski.A ski generally has one or more upper layers of decoration and protection against external aggressions, sometimes extending laterally to cover the edges of the ski.

L'art antérieur propose de nombreuses solutions, dont les plus classiques restent la fabrication d'une protection en feuille d'A.B.S. extrudé ou d'une résine thermoducissable chargée sur laquelle sont déposées des fines couches de laque et de vernis de finition. Ces structures présentent le désavantage de n'opposer qu'une faible résistance au rayage et n'autorise que peu de solution dans la réalisation de décors durables.The prior art offers numerous solutions, the most classic of which remains the manufacture of a sheet protection of A.B.S. extruded or of a loaded thermosetting resin on which are deposited thin layers of lacquer and finishing varnish. These structures have the disadvantage of only offering a low resistance to scratching and allows only a few solutions in the production of durable decorations.

D'autres supports ont permis au contraire d'utiliser le procédé de sublimation tels que ceux décrits dans le brevet FR 2 596 286 qui divulgue l'utilisation d'un film de matière bicouche de polyamide et de polyamide-polyéther séquencé. Mais ce type de construction pose un problème important de résistance au fluage à chaud pour certains grades souples et de compatibilité dans l'adhésion avec le sous-ensemble inférieur qui constitue le rassemblement des éléments dits "mécaniques" du ski.Other supports, on the contrary, have made it possible to use the sublimation process such as those described in patent FR 2 596 286 which discloses the use of a film of bilayer material of polyamide and of polyamide block polyether. However, this type of construction poses a significant problem of resistance to hot creep for certain flexible grades and of compatibility in adhesion with the lower sub-assembly which constitutes the gathering of the so-called "mechanical" elements of the ski.

On est souvent contraint d'utiliser des films de collage du type de ceux décrits dans le brevet de la demanderesse n° 89 15662 par exemple.We are often forced to use adhesive films of the type described in the patent applicant No. 89 15662, for example.

Ainsi, la présente invention vise à réaliser un élément supérieur de décoration et de protection, d'un coût plus faible, résistant aux agressions extérieures et au fluage à chaud, compatible avec les matières généralement utilisées dans les renforts mécaniques et permettant aussi d'utiliser tous les procédés modernes d'impression, tels que la sublimation par exemple.Thus, the present invention aims to achieve an upper decoration and protection element, of a lower cost, resistant to external aggressions and to hot creep, compatible with the materials generally used in mechanical reinforcements and also making it possible to use all modern printing processes, such as sublimation for example.

Pour cela, l'invention concerne un ski constitué d'un sous-ensemble supérieur de décoration et de protection caractérisé en ce qu'il comprend une couche inférieure, constituée d'un copolymère de styrène et d'acide carboxylique ou un anhydre d'acide carboxylique ou un alliage de ce copolymère, sur laquelle adhère au moins une couche supérieure constituée d'un polyamide.For this, the invention relates to a ski consisting of an upper decoration and protection sub-assembly characterized in that it comprises a lower layer, consisting of a copolymer of styrene and carboxylic acid or an anhydrous of carboxylic acid or an alloy of this copolymer, on which adheres at least one upper layer consisting of a polyamide.

L'invention concerne également le procédé de fabrication d'un tel ski.The invention also relates to the method of manufacturing such a ski.

D'autres objets, caractéristiques et avantages de la présente invention ressortiront de la description des modes de réalisations particulières, faite en relation avec les figures jointes, parmi lesquelles :

  • la figure 1 représente une vue en perspective d'un ski selon la présente invention ;
  • la figure 2 représente un exemple simplifié d'un ski en coupe transversale selon un mode de réalisation de l'invention ;
  • la figure 3 représente une vue en coupe transversale de la structure détaillée du ski selon un autre mode de réalisation.
Other objects, characteristics and advantages of the present invention will emerge from the description of the particular embodiments, made in relation to the attached figures, among which:
  • Figure 1 shows a perspective view of a ski according to the present invention;
  • FIG. 2 represents a simplified example of a cross-sectional ski according to an embodiment of the invention;
  • Figure 3 shows a cross-sectional view of the detailed structure of the ski according to another embodiment.

La figure 1 représente en perspective un ski réalisé selon la présente invention. Ce ski comporte, de façon traditionnelle, une face supérieure 1, une face inférieure 2 ou surface de glisse, deux faces latérales 3 et 4, et une extrémité antérieure recourbée vers le haut, en forme de spatule 5. Un décor 6, schématiquement représenté est visible de l'extérieur sur la face supérieure 1 et les faces latérales 3 et 4.Figure 1 shows in perspective a ski made according to the present invention. This ski comprises, in a traditional manner, an upper face 1, a lower face 2 or sliding surface, two lateral faces 3 and 4, and a front end curved upwards, in the shape of a spatula 5. A decoration 6, schematically represented is visible from the outside on the upper face 1 and the lateral faces 3 and 4.

La figure 2 illustre un exemple de ski dans un mode de réalisation suivant lequel on a représenté un sous-ensemble supérieur 7 de décoration et de protection constitué de deux couches 71 et 72 ; l'une, inférieure 71 en copolymère de styrène et d'acide carboxylique ou un anhydre d'acide carboxylique ; l'autre, supérieure 72, en polyamide.FIG. 2 illustrates an example of skiing in an embodiment according to which there is shown an upper sub-assembly 7 for decoration and protection made up of two layers 71 and 72; one, lower 71, a copolymer of styrene and carboxylic acid or an anhydrous carboxylic acid; the other, upper 72, made of polyamide.

La couche inférieure 71 est une matière plastique opaque de densité voisine de 1, et est constituée préférentiellement d'un copolymère de styrène et d'anhydre maléique. Il peut éventuellement être modifié ou chargé par tout moyen bien connu de l'homme de l'art de façon à augmenter ses caractéristiques mécaniques. Ainsi, on peut prévoir que la couche inférieure 71 soit constituée d'un alliage de copolymère de styrène et d'anhydre maléique, et d'un élastomère par exemple. Dans le type de charges pouvant convenir, on peut citer les billes de verte, la fibre de verte, de carbone ou autres.The lower layer 71 is an opaque plastic material with a density close to 1, and preferably consists of a copolymer of styrene and maleic anhydride. It can optionally be modified or loaded by any means well known to those skilled in the art so as to increase its mechanical characteristics. Thus, provision can be made for the lower layer 71 to consist of an alloy of a copolymer of styrene and maleic anhydride, and of an elastomer for example. In the type of fillers which may be suitable, mention may be made of green balls, green fiber, carbon fiber or the like.

Ce copolymère présente de très bonnes capacités d'adhésion avec la couche supérieure 72. Le polyamide qui constitue cette dernière est préférentiellement choisi parmi les polyamides 11. Il est transparent, rigide et présente une bonne résistance aux conditions extérieures. Il est, d'autre part, facilement sublimable.This copolymer has very good adhesion capacities with the upper layer 72. The polyamide which constitutes the latter is preferably chosen from polyamides 11. It is transparent, rigid and has good resistance to external conditions. It is, on the other hand, easily sublimable.

Chaque couche 71 et 72 présente une épaisseur comprise entre 0,1 et 1 mm environ.Each layer 71 and 72 has a thickness of between 0.1 and 1 mm approximately.

La figure 3 représente une vue en coupe de la structure détaillée d'un ski selon un autre mode de réalisation de l'invention où l'ensemble supérieur de décoration et de protection 7 s'étend latéralement jusqu'au niveau des carres 8 et a une section dont la forme est sensiblement celle d'un U renversé. Cette construction présente l'avantage de pouvoir appliquer ou prolonger le décor sur les faces latérales 3 et 4 du ski.FIG. 3 represents a sectional view of the detailed structure of a ski according to another embodiment of the invention in which the upper decoration and protection assembly 7 extends laterally up to the level of the edges 8 and a a section whose shape is substantially that of an inverted U. This construction has the advantage of being able to apply or extend the decoration on the lateral faces 3 and 4 of the ski.

Le sous-ensemble de décoration et de protection 7 est solidaire d'une couche de renfort supérieur du sous-ensemble mécanique 9 par l'intermédiaire d'une couche de colle, par exemple.The decoration and protection sub-assembly 7 is integral with an upper reinforcement layer of the mechanical sub-assembly 9 by means of a layer of adhesive, for example.

Selon un mode préférentiel de l'invention, le sous-ensemble mécanique 9 comporte une couche de renfort supérieur 91 constitué d' une nappe textile de renfort et d'une matrice thermodurcissable telle qu'une résine époxyde, polyester ou polyuréthane ou encore d'une matrice thermoplastique. Dans ces cas particuliers, la matrice possède d'excellentes propriétés d'adhésion avec la couche inférieure de copolymère du sous-ensemble de décoration, ce qui dispense d'utiliser une interface de colle supplémentaire.According to a preferred embodiment of the invention, the mechanical sub-assembly 9 comprises an upper reinforcing layer 91 consisting of a textile sheet of reinforcement and a thermosetting matrix such as an epoxy, polyester or polyurethane resin or a thermoplastic matrix. In these particular cases, the matrix has excellent adhesion properties with the lower layer of copolymer of the decoration sub-assembly, which eliminates the need for an additional adhesive interface.

Le sous-ensemble mécanique inférieur 9 rassemble tous les éléments nécessaires à la résistance du ski dont une semelle de glissement 94, généralement en polyéthylène, des carres 8, un renfort inférieur 93, un noyau 92, au moins une couche de renfort supérieur 91. L'exemple de la structure de la figure 3 n'est nullement limitatif et n'est donné qu'à titre d'exemple.The lower mechanical sub-assembly 9 brings together all the elements necessary for the strength of the ski, including a sliding sole 94, generally made of polyethylene, edges 8, a lower reinforcement 93, a core 92, at least one upper reinforcement layer 91. The example of the structure of FIG. 3 is in no way limiting and is given only by way of example.

L'invention réside également dans le procédé de fabrication d'un tel ski consistant à assembler le sous-ensemble supérieur de décoration 7 au sous-ensemble inférieur mécanique 9 et comprend une étape préalable de fabrication du sous-ensemble de décoration. Cette étape permet d'obtenir l'adhésion de la couche supérieure 72 en polyamide, et inférieure 71 en copolymère de styrène et d'acide carboxylique ou un anhydre d'acide carboxylique. Le bicouche obtenu répond aux exigences de collage normalement reconnues d'un laminé pour la fabrication d'un ski.The invention also resides in the method of manufacturing such a ski, consisting of assembling the upper decoration sub-assembly 7 to the lower mechanical sub-assembly 9 and comprises a prior step of manufacturing the decoration sub-assembly. This step makes it possible to obtain adhesion of the upper layer 72 of polyamide, and the lower layer 71 of a copolymer of styrene and of carboxylic acid or an anhydrous of carboxylic acid. The bilayer obtained meets the normally recognized bonding requirements of a laminate for the manufacture of a ski.

Les procédés les plus couramment utilisés sont la coextrusion et le plaxage à chaud. De bons résultats de collage sont obtenus par la coextrusion du bicouche à une température voisine de 240° C, en sortie de filière. Cette opération est suivie en continu d'un calandrage, afin de définir l'épaisseur et l'aspect de finition du sous-ensemble. Le calandrage permet également la poursuite de la cinétique d'adhésion des deux composants qui est de l'ordre de 20 secondes à 160° C.The most commonly used methods are coextrusion and hot plastering. Good bonding results are obtained by the coextrusion of the bilayer at a temperature in the region of 240 ° C., at the outlet of the die. This operation is followed continuously by calendering, in order to define the thickness and the finish appearance of the sub-assembly. Calendering also allows the adhesion kinetics of the two components to continue, which is around 20 seconds at 160 ° C.

Enfin, cette étape préalable de fabrication comprend une dernière phase de décoration. Celle-ci peut être réalisée par le procédé de sublimation décrit par le brevet n° 87 13552 de la demanderesse par exemple.Finally, this preliminary manufacturing step includes a final decoration phase. This can be achieved by the sublimation process described by patent No. 87 13552 of the applicant for example.

Le sous-ensemble de décoration ainsi formé est appliqué sur le sous-ensemble mécanique inférieure 9 et particulièrement sur une partie au moins d'une couche de renfort supérieure 91 du sous-ensemble. Mais, bien entendu, comme le montre la figure 3, la couche de polymère 71 peut s'étendre latéralement au-delà du renfort en venant adhérer sur d'autres éléments, tels que liants, carres, ou autres. L'étape d'assemblage peut comporter préférenciellement une phase de moulage proprement dite pendant laquelle les différents éléments sont soumis à des pressions et températures élevées. L'adhésion est particulièrement efficace lorsque la couche de renfort supérieur est constituée d'une nappe textile pré-imprégnée d'une matrice de résine thermodurcissable, non entièrement réticulée, ou d'une matrice de résine thermoplastique.The decoration sub-assembly thus formed is applied to the lower mechanical sub-assembly 9 and particularly to at least part of an upper reinforcing layer 91 of the sub-assembly. However, of course, as shown in FIG. 3, the polymer layer 71 can extend laterally beyond the reinforcement by adhering to other elements, such as binders, edges, or the like. The assembly step may preferably include an actual molding phase during which the various elements are subjected to high pressures and temperatures. Adhesion is particularly effective when the upper reinforcement layer consists of a textile sheet pre-impregnated with a resin matrix thermosetting, not fully crosslinked, or a matrix of thermoplastic resin.

Les matrices de résine époxydes, polyester, ou polyuréthane donnent généralement les meilleurs résultats lorsqu'elles sont employées avec un copolymère de styrène et d'anhydre maléique modifié ou non. C'est l'opération de moulage qui permet de réactiver la réticulation finale et de provoquer l'adhésion dans le cas d'une matrice de résine thermodurcissable.Epoxy, polyester, or polyurethane resin matrices generally give the best results when used with a copolymer of styrene and maleic anhydride, modified or not. It is the molding operation which makes it possible to reactivate the final crosslinking and to cause adhesion in the case of a matrix of thermosetting resin.

La mise en oeuve de l'opération de moulage peut être différente selon les procédés ; un exemple de procédé de fabrication d'un ski dont le noyau est injecté est décrit dans le brevet n° 89 15664 de la demanderesse. Bien entendu, la phase de moulage n'est pas réalisée lorsque les éléments du sous-ensemble mécanique sont fabriqués préalablement puis assemblés par collage.The implementation of the molding operation can be different depending on the process; an example of a process for manufacturing a ski, the core of which is injected, is described in patent No. 89 15664 of the applicant. Of course, the molding phase is not carried out when the elements of the mechanical sub-assembly are produced beforehand and then assembled by gluing.

La présente invention n'est pas limitée aux modes de réalisation qui ont été explicitement décrits, mais elle en inclut les diverses variantes et généralisations contenues dans le domaine des revendications ci-après.The present invention is not limited to the embodiments which have been explicitly described, but it includes the various variants and generalizations thereof contained in the field of claims below.

Claims (15)

Ski constitué d'un sous-ensemble supérieur de décoration et de protection (7) et d'un sous-ensemble inférieur mécanique (9), caractérisé en ce que ledit sous-ensemble supérieur (7) comprend une couche inférieure (71), constituée d'un copolymère de styrène et d'acide carboxylique ou son anhydre ou d'un alliage contenant ce copolymère, sur laquelle adhère au moins une couche supérieure constituée d'un polyamide (72).Ski consisting of an upper decoration and protection sub-assembly (7) and a mechanical lower sub-assembly (9), characterized in that said upper sub-assembly (7) comprises a lower layer (71), consisting of a copolymer of styrene and carboxylic acid or its anhydrous or of an alloy containing this copolymer, on which adheres at least one upper layer consisting of a polyamide (72). Ski selon la revendication 1, caractérisé en ce que la couche supérieure (72) est constituée d'un polyamide 11.Ski according to claim 1, characterized in that the upper layer (72) consists of a polyamide 11. Ski selon la revendication 1 ou 2, caractérisé en ce que la couche inférieure (71) est constituée d'un copolymère de styrène et d'anhydre maléique, ou un alliage de ce copolymère.Ski according to claim 1 or 2, characterized in that the lower layer (71) consists of a copolymer of styrene and maleic anhydride, or an alloy of this copolymer. Ski selon l'une quelconque des revendications précédentes caractérisé en ce que la couche inférieure (71) est constituée d'un alliage contenant le mélange du copolymère et d'un élastomère.Ski according to any one of the preceding claims, characterized in that the lower layer (71) consists of an alloy containing the mixture of the copolymer and an elastomer. Ski selon l'une quelconque des revendications précédentes, caractérisé en ce que la couche inférieure (71) du sous-ensemble supérieur de décoration (1) est chargée.Ski according to any one of the preceding claims, characterized in that the lower layer (71) of the upper decoration sub-assembly (1) is loaded. Ski selon les revendications 1 à 5, caractérisé en ce que le sous-ensemble supérieur (7) a une section dont la forme est sensiblement celle d'un U renversé.Ski according to claims 1 to 5, characterized in that the upper sub-assembly (7) has a section whose shape is substantially that of an inverted U. Ski selon l'une quelconque des revendications précédentes, caractérisé en ce que la couche inférieure (71) du sous-ensemble supérieur (7) de décoration est solidaire d'une couche de renfort supérieur (91) du sous-ensemble inférieur mécanique (9).Ski according to any one of the preceding claims, characterized in that the lower layer (71) of the upper decoration sub-assembly (7) is integral with an upper reinforcing layer (91) of the lower mechanical sub-assembly (9 ). Ski selon la revendication 7, caractérisé en ce que la couche de renfort supérieure (91) est constituée d'une nappe textile de renfort et d'une matrice de résine thermodurcissable ou thermoplastique.Ski according to claim 7, characterized in that the upper reinforcement layer (91) consists of a textile reinforcement ply and a matrix of thermosetting or thermoplastic resin. Ski selon la revendication 8, caractérisé en ce que la nappe textile de renfort est à base de fibres tissées ou non tissées en verte, carbone, aramide ou autres.Ski according to claim 8, characterized in that the reinforcing textile ply is based on woven or non-woven fibers in green, carbon, aramid or others. Ski selon les revendications 8 ou 9, caractérisé en ce que la résine thermodurcissable est une résine époxyde, polyester ou polyuréthane.Ski according to claim 8 or 9, characterized in that the thermosetting resin is an epoxy, polyester or polyurethane resin. Ski selon les revendications 7 à 10, caractérisé en ce que le sous-ensemble mécanique inférieur est constitué de l'assemblage d'un moins une couche de renfort supérieur (91), d'une semelle de glissement (94), de carres métalliques (8), d'un noyau (92), et d'un renfort inférieur (93)Ski according to claims 7 to 10, characterized in that the lower mechanical sub-assembly consists of the assembly of at least one upper reinforcing layer (91), of a sliding sole (94), of metal edges (8), a core (92), and a lower reinforcement (93) Procédé de fabrication d'un ski consistant à assembler un sous-ensemble supérieur de décoration (7) à un sous-ensemble inférieur mécanique (9) caractérisé en ce qu'il comprend une étape préalable de fabrication du sous-ensemble décoration qui consiste : - à assembler par coextruxion ou plaxage à chaud une couche inférieure (71) constituée d'un copolymère de styrène et d'acide carboxylique ou son anhydre, et une couche supérieure de polyamide (72), ou d'un alliage de ce copolymère, - puis à appliquer une étape de décoration. Method for manufacturing a ski, consisting in assembling an upper decoration sub-assembly (7) to a mechanical lower sub-assembly (9), characterized in that it comprises a prior step of manufacturing the decoration sub-assembly which consists: - to assemble by coextruxion or hot-pressing a lower layer (71) consisting of a copolymer of styrene and carboxylic acid or its anhydrous, and an upper layer of polyamide (72), or of an alloy of this copolymer, - then apply a decoration step. Procédé, selon la revendication 11, caractérisé en ce que l'étape de décoration est une étape de sublimation.Method according to claim 11, characterized in that the decoration step is a sublimation step. Procédé selon les revendications 12 et 13, caractérisé en ce que une partie au moins de la couche inférieure (71) du sous-ensemble supérieur de décoration (7) est appliqué sur une couche de renfort supérieur (91) du sous-ensemble mécanique (9) et en ce qu'une phase de moulage provoque l'adhésion des deux couches entre-elles.Method according to claims 12 and 13, characterized in that at least part of the lower layer (71) of the upper decoration sub-assembly (7) is applied to an upper reinforcing layer (91) of the mechanical sub-assembly ( 9) and in that a molding phase causes the adhesion of the two layers to one another. Procédé, selon la revendication 12, caractérisé en ce que la couche de renfort supérieur (91) est constituée d'une nappe textile pré-imprégnée d'une résine thermodurcissable non entièrement réticulée, ou d'une résine thermoplastique.Method according to claim 12, characterized in that the upper reinforcing layer (91) consists of a textile sheet pre-impregnated with a thermosetting resin which is not entirely crosslinked, or with a thermoplastic resin.
EP91101971A 1990-05-15 1991-02-13 Ski and method of manufacturing same Expired - Lifetime EP0456965B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT91101971T ATE100726T1 (en) 1990-05-15 1991-02-13 SKI AND PROCESS FOR ITS MANUFACTURE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9006332 1990-05-15
FR9006332A FR2662091B1 (en) 1990-05-15 1990-05-15 SKI AND METHOD FOR MANUFACTURING A SKI.

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EP0456965A1 true EP0456965A1 (en) 1991-11-21
EP0456965B1 EP0456965B1 (en) 1994-01-26

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US (1) US5217243A (en)
EP (1) EP0456965B1 (en)
JP (1) JPH04231084A (en)
AT (1) ATE100726T1 (en)
DE (1) DE69101078T2 (en)
FR (1) FR2662091B1 (en)

Cited By (7)

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US5217243A (en) * 1990-05-15 1993-06-08 Salomon S.A. Ski and process for its manufacture
FR2696650A1 (en) * 1992-10-13 1994-04-15 Rossignol Sa Procedure for decorating upper surface of ski which has two different-coloured coating layers - abrading portions of upper layer by sand-blasting to expose under layer and then varnishing
FR2697440A1 (en) * 1992-10-30 1994-05-06 Salomon Sa Ski with upper decorative sub assembly - made of alloy of polyamide and polyolefin with compatibiliser provides high resistance to deterioration with good printing characteristics
US5544908A (en) * 1994-05-06 1996-08-13 K-2 Corporation Thermoplastic composite ski and method of manufacture
FR2740385A1 (en) * 1995-10-27 1997-04-30 Indec Thermoplastic lamination useful for washing machine ornamental finish
FR2740384A1 (en) * 1995-10-27 1997-04-30 Indec Thermoplastic laminations used for ornamental finishes and protection
EP0811401A1 (en) * 1996-06-06 1997-12-10 Salomon S.A. Complex covering for snowboards

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FR2703916B1 (en) * 1993-04-16 1995-05-19 Rossignol Sa Ski with edges and upper shell.
US5803478A (en) * 1995-06-07 1998-09-08 Gavalis; Richard Clifford Ski
US5759664A (en) * 1996-02-29 1998-06-02 Goode Ski Technologies Composite ski
US5948472A (en) * 1996-09-10 1999-09-07 Lawrie Technology, Inc. Method for making a pultruded product
FR2801532B1 (en) * 1999-11-29 2002-07-26 Nobel Plastiques DECORATIVE PLASTIC SHEET AND MANUFACTURING METHOD THEREOF
US20060014035A1 (en) * 2004-06-22 2006-01-19 Thibaut Montanari Polyamide-based multilayer structure for covering substrates
FR2892340B1 (en) * 2005-10-24 2008-02-22 Salomon Sa IMPROVED SANDWICH LAMINATE STRUCTURE
FR2892379B1 (en) * 2005-10-24 2008-04-04 Salomon Sa SLIDING BOARD COMPRISING A REINFORCED SANDWICH STRUCTURE
DE102005051126A1 (en) * 2005-10-26 2007-05-03 Degussa Gmbh Decorative foil, useful as e.g. a protection foil against e.g. chemicals, comprises a coating layer comprising polyamide composition
WO2014082058A1 (en) * 2012-11-26 2014-05-30 Renoun Ski Company, Llc Snowsport apparatus with non-newtonian materials
US11478691B2 (en) 2018-07-10 2022-10-25 Renoun, Llc Snow sliding device incorporating material having shear-rate dependent shear resistance, and methods for its manufacture

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FR2606289A1 (en) * 1986-11-07 1988-05-13 Isosport Verbundbauteile METHOD FOR MANUFACTURING A SKI CONSTITUENT ELEMENT
FR2618077A1 (en) * 1987-07-15 1989-01-20 Salomon Sa SKI WITH CONVERGENT SUPERIOR FACE
FR2629352A1 (en) * 1988-03-29 1989-10-06 Salomon Sa METHOD FOR REALIZING A SKI, AND SKI REALIZED ACCORDING TO THIS PROCESS

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JPS6329672A (en) * 1986-07-23 1988-02-08 ポリプラスチックス株式会社 Ski core body
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FR2596286A1 (en) * 1986-03-26 1987-10-02 Rossignol Sa Ski with protected decoration
FR2606289A1 (en) * 1986-11-07 1988-05-13 Isosport Verbundbauteile METHOD FOR MANUFACTURING A SKI CONSTITUENT ELEMENT
DE8704218U1 (en) * 1987-03-20 1987-06-11 Röhm GmbH, 6100 Darmstadt ski
FR2618077A1 (en) * 1987-07-15 1989-01-20 Salomon Sa SKI WITH CONVERGENT SUPERIOR FACE
FR2629352A1 (en) * 1988-03-29 1989-10-06 Salomon Sa METHOD FOR REALIZING A SKI, AND SKI REALIZED ACCORDING TO THIS PROCESS

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5217243A (en) * 1990-05-15 1993-06-08 Salomon S.A. Ski and process for its manufacture
FR2696650A1 (en) * 1992-10-13 1994-04-15 Rossignol Sa Procedure for decorating upper surface of ski which has two different-coloured coating layers - abrading portions of upper layer by sand-blasting to expose under layer and then varnishing
FR2697440A1 (en) * 1992-10-30 1994-05-06 Salomon Sa Ski with upper decorative sub assembly - made of alloy of polyamide and polyolefin with compatibiliser provides high resistance to deterioration with good printing characteristics
US5544908A (en) * 1994-05-06 1996-08-13 K-2 Corporation Thermoplastic composite ski and method of manufacture
EP0805709A4 (en) * 1994-05-06 1997-11-12
FR2740385A1 (en) * 1995-10-27 1997-04-30 Indec Thermoplastic lamination useful for washing machine ornamental finish
FR2740384A1 (en) * 1995-10-27 1997-04-30 Indec Thermoplastic laminations used for ornamental finishes and protection
EP0811401A1 (en) * 1996-06-06 1997-12-10 Salomon S.A. Complex covering for snowboards
FR2749519A1 (en) * 1996-06-06 1997-12-12 Salomon Sa RECOVERY COMPLEX FOR SLIDING BOARD

Also Published As

Publication number Publication date
US5217243A (en) 1993-06-08
JPH04231084A (en) 1992-08-19
ATE100726T1 (en) 1994-02-15
FR2662091A1 (en) 1991-11-22
FR2662091B1 (en) 1992-07-24
EP0456965B1 (en) 1994-01-26
DE69101078T2 (en) 1994-05-05
DE69101078D1 (en) 1994-03-10

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