EP0620027A1 - Ski with side walls and upper shell - Google Patents

Ski with side walls and upper shell Download PDF

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Publication number
EP0620027A1
EP0620027A1 EP94420119A EP94420119A EP0620027A1 EP 0620027 A1 EP0620027 A1 EP 0620027A1 EP 94420119 A EP94420119 A EP 94420119A EP 94420119 A EP94420119 A EP 94420119A EP 0620027 A1 EP0620027 A1 EP 0620027A1
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EP
European Patent Office
Prior art keywords
ski
ski according
edges
longitudinal
shell
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Granted
Application number
EP94420119A
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German (de)
French (fr)
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EP0620027B2 (en
EP0620027B1 (en
Inventor
Roger Abondance
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Skis Rossignol SA
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Skis Rossignol SA
Rossignol SA
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Application filed by Skis Rossignol SA, Rossignol SA filed Critical Skis Rossignol SA
Publication of EP0620027A1 publication Critical patent/EP0620027A1/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
    • A63C5/04—Structure of the surface thereof
    • A63C5/0405—Shape thereof when projected on a plane, e.g. sidecut, camber, rocker
    • A63C5/0411—Shape thereof when projected on a plane, e.g. sidecut, camber, rocker asymmetric
    • 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
    • A63C5/06—Skis or snowboards with special devices thereon, e.g. steering devices
    • A63C5/07—Skis or snowboards with special devices thereon, e.g. steering devices comprising means for adjusting stiffness
    • 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
    • A63C5/126—Structure of the core

Definitions

  • the subject of the present invention is a ski, and in particular an alpine ski comprising edges and an upper shell.
  • a traditional ski comprises a lower surface constituted by a sole bordered by longitudinal edges, on which rest rigid edges, for example ABS or phenolic laminate. These edges, which extend over the entire height of the ski, are generally perpendicular to the sole thereof. Between the edges, the core is arranged, which can be produced in different ways, the core itself being located between reinforcing elements, the assembly being covered by an upper wall which also rests on the upper wall of the edges.
  • skis It is more and more common, for aesthetic reasons, and for reasons of industrialization of the manufacture of skis, to produce shaped skis, that is to say skis of non-rectangular section, having a shell. forming the upper face and the lateral faces of the ski, these lateral faces possibly being inclined over at least part of their height.
  • the core is most often made of synthetic material foam, for example polyurethane, which has excellent properties of stability over time, while being of low weight.
  • the hulls constituting modern skis comprise an upper protective element supporting the decoration of the ski, covering a glass fabric frame possibly containing carbon or aramid fibers constituting the upper reinforcement of the ski.
  • This reinforcing fabric could, in the upper part corresponding to the upper face of the ski, be made up only of unidirectional fibers.
  • the flaps, constituting the lateral faces of the ski include fibers oriented in the direction of the weft, necessary to obtain sufficient resistance, in particular in torsion, and providing support on the edges . It is therefore necessary to use fabrics comprising a warp and a weft, even if this structure is oversized for the production of the upper surface of the ski which must mainly provide resistance in simple bending of the ski.
  • connection between the shell and the lower part of the ski is ensured by bonding. Given the forces to which the assembly zone is subjected, it frequently results from detachments between the shell and the lower part of the ski comprising the sole.
  • the object of the invention is to provide a ski, in which the transmission of forces from the upper face of the ski to the edges is carried out under the best possible conditions, which has a shell forming its upper face and at least part of its side faces, in order to obtain good aesthetic qualities, and which is of great solidity.
  • the ski which it concerns comprising a filling core in one or more parts, for example made of polyurethane foam, a lower face equipped with a sliding sole and delimited by two longitudinal metal edges, as well as reinforcement and decoration sheets, is characterized in that it comprises longitudinal reinforcement elements each bearing on an edge, and forming the ski edges, which extend, at least for one of them, over part of the height thereof, and a shell forming the upper face and part of at least one of the side walls of the ski, the longitudinal edges of which rest and are fixed on the upper face of the edges, the respective heights d 'A song and the hull on at least one of the sides of the ski varying in the same proportions over the length of the ski.
  • the height of the edges is substantially equal to the height of the shell.
  • This ski has longitudinal reinforcing elements forming edges, which bear on the edges, and which ensure good transmission of the reactions of the skier to the underside of the ski.
  • the upper reinforcement fabric of the shell is made up of unidirectional fibers oriented only in the longitudinal direction of the ski, which constitutes a factor of economy, without harming the qualities of the ski.
  • edges may be perpendicular to the plane of the sole, or inclined with respect to this perpendicular. Insofar as the outer face of each reinforcing element forming a song is inclined, this inclination may be different or equal to that of the inclined part of the shell. In addition, this inclination can be symmetrical or asymmetrical with one edge relative to the other edge of the same ski.
  • the reinforcing elements arranged on both sides of the ski may have characteristics of shape and / or relating to the nature of the same or different materials, and have a constant width over the entire length of the ski or, on the contrary, have a variable width.
  • Each reinforcing element can be monolithic or constituted by several vertical and juxtaposed layers extending over the length of the ski. These different layers of material can have the same height or, on the contrary, the different layers can have decreasing heights from the layer located on the side of the core of the ski to that located furthest outside.
  • the two reinforcing elements arranged on the two sides of the ski have different heights.
  • This arrangement provides a ski having good qualities of guidance on hard snow, as well as good qualities of behavior in powder snow, because it is possible to thin the ski on the side of the outer edge.
  • the longitudinal reinforcing elements belong to the same part which occupies the entire width of the ski.
  • This part can be of rectangular section, of section in the general shape of H, or of section in the general shape of U.
  • the part of the part located in the center of the ski constitutes a part of the core of the ski.
  • the shell has at its two longitudinal edges, two returns parallel to the plane of the sole of the ski, bearing on the two reinforcing elements.
  • the shell has at its two longitudinal edges two inclined returns relative to the plane of the sole of the ski, bearing on the inclined upper faces of each of the reinforcing elements.
  • these two returns constituting the edges of the shell are of constant width over the entire length of the ski.
  • the two hull returns can be located at the side faces of the ski or set back from these side faces.
  • each reinforcing element has a width greater than that of the corresponding return of the shell, and partly rises along the internal inclined part of the shell.
  • the edges of the shell are embedded in the longitudinal reinforcing elements.
  • this ski contains a metal reinforcement plate or a laminate of glass, carbon or aramid which, extending over all or part of the length of the ski, occupies the entire width thereof. .
  • This metal plate provides reinforcement of the ski in lateral bending. It can be present over the entire length of the ski or on only part of this length, and preferably in the skate area.
  • This plate can be made of a light alloy, such as an aluminum alloy known under the brand ZICRAL. This plate can be full or perforated.
  • the reinforcing plate is inserted between the upper face of the longitudinal reinforcing elements and the base of the shell.
  • the longitudinal edges of the reinforcing plate are embedded in the longitudinal reinforcing elements.
  • the metal plate is embedded in the longitudinal reinforcing elements before injection of the polyurethane foam constituting the core, the plate being perfectly positioned and retained in the desired position thanks to the embedding of its edges in grooves provided in the longitudinal reinforcing elements.
  • the reinforcing plate is profiled by several longitudinal folds and is spaced from the shell.
  • the ski 2 shown in FIG. 1 comprises a tip 3, a skid area 4 and a heel 5.
  • This ski essentially consists of a filling core 6, for example made of polyurethane foam, resting on the lower part of the ski, which comprises a sole 7 delimited by two longitudinal metal edges 8.
  • a reinforcing element 9 On each edge 8 rests a reinforcing element 9 forming a edge of the ski.
  • the edges 9 are perpendicular to the plane of the sole 7.
  • the upper face of the ski, as well as the upper parts of the side walls, consist of a shell 10.
  • This shell 10 has two flanges 12, substantially parallel to the plane of the sole, bearing against the two upper faces, of the same orientation, which comprise the edges 9.
  • a reinforcing sheet 15 placed under the shell in contact with the latter, constituted for example by a fabric with unidirectional fibers oriented longitudinally, impregnated with resin.
  • a lower reinforcement sheet 16 is arranged above the sole 7.
  • the respective heights (H1, H2) of the edges 9 and of the shell 10 are substantially equal, so that the support and assembly area of the edges 12 of the shell 10 and edges 9 is located substantially at the same height as the neutral fiber of the ski core.
  • skis shown in the following figures are simplified representations in which certain elements, such as the reinforcing sheets 15, 16 are not shown.
  • FIGS. 4 and 5 which correspond to FIGS. 2 and 3 respectively, represent a ski comprising edges 9a inclined relative to the perpendicular to the plane of the sole 7.
  • each longitudinal reinforcing element 9b has an inclined outer face 13, and an inner face 14 perpendicular to the plane of the sole.
  • the ski shown in FIG. 7 is a variant of the ski in FIGS. 1 to 3, in which each edge 12 of the shell 10 is supported on the upper face of a edge 9, inclined up and down and from the inside towards outside.
  • FIG. 8 to 10 show three skis, in which each reinforcing element is constituted by three layers of material juxtaposed vertically 19a, 19b 19c.
  • the three layers have the same height and the return 12 associated with each side of the ski extends over the entire width of the three layers, made of different materials, such as wood, resins phenolic, aluminum alloy, acrylonitrile-butadiene-styrene, ....
  • the heights of layers 19a, 19b and 19c are decreasing from that 19a located on the side of the core from the ski to that 19c located outside.
  • each return 12 of the shell bears only on the layer 19a, and the upper faces of the layers 19c and 19b are cut at an angle so as to form an inclined surface.
  • each return 12 bears only on the upper face of the layer 19a, and the upper faces of the layers 19b and 19c are parallel to the upper plane of the hull, which results in a general staircase-like structure.
  • FIG. 11 represents a ski, in which each return 12 of the shell 10 is supported on only part of the width of a reinforcing element 9 and is embedded therein.
  • each reinforcement element 29 is greater than the width of the corresponding return 12 of the shell, and the reinforcement element rises partly under the shell, so that '' it is not visible over its entire height from outside the ski.
  • the shell 10 does not have lateral returns, but simply edges 16 of substantially vertical orientation which are embedded in the longitudinal reinforcing elements 9.
  • FIG. 14 shows an asymmetrical ski, comprising a reinforcing element 39a situated on the side of the inner edge, of height greater than that of the reinforcing element 39b situated on the side of the outer edge.
  • the shell comprises a flat part corresponding to the upper face of the ski, bearing directly on the reinforcement element 39a, an inclined part, and a return 12 bearing on the upper face of the reinforcement element 39b .
  • the ski shown in FIG. 15 comprises a part 49 of rectangular section, made of a hard material, for example of wood, extending over the entire width of the ski, and forming the longitudinal reinforcing elements.
  • FIG. 16 represents a ski comprising a part 59 of H section, the two branches 59a of which form the longitudinal reinforcing elements and the central part 59b of which forms part of the core of the ski.
  • FIG. 17 shows another ski comprising a piece 69 of hard material, for example wood, in the general shape of a U, the two branches 69a of which form the longitudinal reinforcing elements, and the core of which 69b belongs to the core of the ski.
  • a piece 69 of hard material for example wood
  • FIGs 18 to 21 show skis, in which the same elements are designated by the same references as above.
  • a plate of reinforcement, metallic or laminate In each of these skis is provided a plate of reinforcement, metallic or laminate, ensuring reinforcement of the ski in lateral bending.
  • the plate 13 In the embodiment shown in Figure 18, the plate 13 is inserted between the upper face of the reinforcing elements 9 and the base of the shell.
  • the plate 13a is embedded by its longitudinal edges in the walls opposite the two reinforcing elements 9, which allows for a perfect positioning of the plate before injection of the foam. synthetic material intended to form the core.
  • the reinforcing plate is profiled by longitudinal folds, and inserted between the upper face of the reinforcing elements 9 and the returns 12 of the shell.
  • the plate 13c is profiled in the same direction as the shell, while in the embodiment shown in Figure 21 the plate 13d is profiled in the opposite direction to the shell.
  • the angle formed by the side walls of the shell with the upper wall thereof can vary over the length of the ski, this angle being for example greater in the skate area than in the end areas, tip and heel ski.
  • the edge delimiting the upper wall of the shell, and each inclined wall thereof, may be parallel to the longitudinal median axis of the ski, or, on the contrary, have an orientation which varies with respect to this axis, the line that forms this edge, straight or curved, which can for example diverge from the rear towards the front of the ski.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Laminated Bodies (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Finger-Pressure Massage (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Golf Clubs (AREA)
  • Tents Or Canopies (AREA)

Abstract

This ski includes longitudinal reinforcing elements (9) each bearing on an edge (8), and forming the side walls of the ski, which extend, at least in the case of one of them, over a part of the height of the latter, and a shell (10) forming the topsheet (upper face) and a part of at least one of the lateral walls of the ski, and the longitudinal sides (12) of which rest and are fastened on the topsheet of the side walls (9), the respective heights of a side wall and of the shell over at least one of the side faces of the ski varying in the same proportions over the length of the ski. <IMAGE>

Description

La présente invention a pour objet un ski, et notamment un ski alpin comportant des chants et une coque supérieure.The subject of the present invention is a ski, and in particular an alpine ski comprising edges and an upper shell.

Un ski traditionnel comprend une surface inférieure constituée par une semelle bordée de carres longitudinales, sur lesquelles reposent des chants rigides, par exemple en ABS ou en stratifié phénolique. Ces chants, qui s'étendent sur toute la hauteur du ski sont généralement perpendiculaires à la semelle de celui-ci. Entre les chants, est disposé le noyau, qui peut être réalisé de différentes façons, le noyau étant lui-même situé entre des éléments de renforcement, l'ensemble étant recouvert par une paroi supérieure qui repose également sur la paroi supérieure des chants.A traditional ski comprises a lower surface constituted by a sole bordered by longitudinal edges, on which rest rigid edges, for example ABS or phenolic laminate. These edges, which extend over the entire height of the ski, are generally perpendicular to the sole thereof. Between the edges, the core is arranged, which can be produced in different ways, the core itself being located between reinforcing elements, the assembly being covered by an upper wall which also rests on the upper wall of the edges.

L'avantage d'un tel ski est que la rigidité des chants assure une excellente transmission des efforts exercés par le skieur sur la surface de la neige.The advantage of such a ski is that the rigidity of the edges ensures excellent transmission of the forces exerted by the skier on the surface of the snow.

Il est de plus en plus fréquent, pour des raisons esthétiques, et pour des raisons d'industrialisation de la fabrication des skis, de réaliser des skis en forme, c'est-à-dire des skis de section non rectangulaire, possédant une coque formant la face supérieure et les faces latérales du ski, ces faces latérales étant éventuellement inclinées sur au moins une partie de leur hauteur. Dans une telle hypothèse, le noyau est le plus souvent réalisé en mousse de matière synthétique, par exemple de polyuréthanne, qui possède d'excellentes propriétés de stabilité dans le temps, tout en étant d'un poids peu élevé.It is more and more common, for aesthetic reasons, and for reasons of industrialization of the manufacture of skis, to produce shaped skis, that is to say skis of non-rectangular section, having a shell. forming the upper face and the lateral faces of the ski, these lateral faces possibly being inclined over at least part of their height. In such a case, the core is most often made of synthetic material foam, for example polyurethane, which has excellent properties of stability over time, while being of low weight.

Toutefois, ce dernier type de ski, illustré notamment par les documents FR 2 611 518, US 3 272 522 et FR 2 522 976, ne donne pas entière satisfaction du fait que la transmission des efforts sur les carres à partir de la face supérieure du ski n'est pas réalisée de façon ferme, compte tenu de l'absence de chants et de l'inclinaison des parois latérales. Cette transmission se fait seulement par des feuilles de renforcement de la coque, qui sont plaquées contre les flancs inclinés et qui prennent un appui ponctuel sur les carres. Ces skis possèdent donc des caractéristiques de comportement moyennes et ne peuvent pas satisfaire aux critères d'exigence requis, notamment en compétition, où la précision de guidage souhaitée pour les skis, impose une transmission aussi parfaite que possible des efforts depuis la face supérieure du ski vers les carres.However, this latter type of ski, illustrated in particular by the documents FR 2 611 518, US 3 272 522 and FR 2 522 976, is not entirely satisfactory since the transmission of the forces on the edges from the upper face of the skiing is not performed firmly, given the absence of edges and the inclination of the side walls. This transmission is made only by sheets of reinforcement of the hull, which are pressed against the inclined sides and which take a specific support on the edges. These skis therefore have average behavior characteristics and cannot meet the required criteria, in particular in competition, where the desired guidance precision for the skis, imposes a transmission of forces as perfect as possible from the upper face of the ski. towards the edges.

Généralement, les coques constituant les skis modernes comprennent un élément supérieur de protection supportant le décor du ski, recouvrant une armature en tissu de verre contenant éventuellement du carbone ou des fibres aramide constituant le renfort supérieur du ski. Ce tissu de renfort pourrait, dans la partie supérieure correspondant à la face supérieure du ski, n'être constitué que de fibres unidirectionnelles. Toutefois, il est impératif que les rabats, constituant les faces latérales du ski, comportent des fibres orientées dans le sens de la trame, nécessaires à l'obtention d'une résistance, notamment en torsion, suffisante, et procurant un appui sur les carres. Il est donc nécessaire d'utiliser des tissus comportant une chaîne et une trame, même si cette structure est surdimensionnée pour la réalisation de la surface supérieure du ski qui doit assurer principalement une résistance en flexion simple du ski.Generally, the hulls constituting modern skis comprise an upper protective element supporting the decoration of the ski, covering a glass fabric frame possibly containing carbon or aramid fibers constituting the upper reinforcement of the ski. This reinforcing fabric could, in the upper part corresponding to the upper face of the ski, be made up only of unidirectional fibers. However, it is imperative that the flaps, constituting the lateral faces of the ski, include fibers oriented in the direction of the weft, necessary to obtain sufficient resistance, in particular in torsion, and providing support on the edges . It is therefore necessary to use fabrics comprising a warp and a weft, even if this structure is oversized for the production of the upper surface of the ski which must mainly provide resistance in simple bending of the ski.

En outre, la liaison entre la coque et la partie inférieure du ski est assurée par collage. Compte tenu des efforts auxquels est soumise la zone d'assemblage, il résulte fréquemment des décollements entre la coque et la partie inférieure du ski comportant la semelle.In addition, the connection between the shell and the lower part of the ski is ensured by bonding. Given the forces to which the assembly zone is subjected, it frequently results from detachments between the shell and the lower part of the ski comprising the sole.

Le but de l'invention est de fournir un ski, dans lequel la transmission des efforts depuis la face supérieure du ski vers les carres soit réalisée dans les meilleures conditions possibles, qui possède une coque formant sa face supérieure et au moins une partie de ses faces latérales, afin d'obtenir de bonnes qualités esthétiques, et qui soit d'une grande solidité.The object of the invention is to provide a ski, in which the transmission of forces from the upper face of the ski to the edges is carried out under the best possible conditions, which has a shell forming its upper face and at least part of its side faces, in order to obtain good aesthetic qualities, and which is of great solidity.

A cet effet, le ski qu'elle concerne, comprenant un noyau de remplissage en une ou plusieurs parties, par exemple en mousse de polyuréthanne, une face inférieure équipée d'une semelle de glissement et délimitée par deux carres métalliques longitudinales, ainsi que des feuilles de renforcement et de décoration, est caractérisé en ce qu'il comporte des éléments de renforcement longitudinaux prenant appui chacun sur une carre, et formant les chants du ski, qui s'étendent, au moins pour l'un d'eux, sur une partie de la hauteur de celui-ci, et une coque formant la face supérieure et une partie d'au moins une des parois latérales du ski, dont les bords longitudinaux reposent et sont fixés sur la face supérieure des chants, les hauteurs respectives d'un chant et de la coque sur au moins un des côtés du ski variant dans les mêmes proportions sur la longueur du ski.To this end, the ski which it concerns, comprising a filling core in one or more parts, for example made of polyurethane foam, a lower face equipped with a sliding sole and delimited by two longitudinal metal edges, as well as reinforcement and decoration sheets, is characterized in that it comprises longitudinal reinforcement elements each bearing on an edge, and forming the ski edges, which extend, at least for one of them, over part of the height thereof, and a shell forming the upper face and part of at least one of the side walls of the ski, the longitudinal edges of which rest and are fixed on the upper face of the edges, the respective heights d 'A song and the hull on at least one of the sides of the ski varying in the same proportions over the length of the ski.

La hauteur des chants est sensiblement égale à la hauteur de la coque.The height of the edges is substantially equal to the height of the shell.

Ce ski possède des éléments de renforcement longitudinaux formant chants, qui prennent appui sur les carres, et qui assurent une bonne transmission des réactions du skieur vers la face inférieure du ski. En outre, le fait que l'assemblage entre la coque et les chants soit réalisé sensiblement à mi-hauteur du ski, c'est-à-dire sensiblement à la même hauteur que la fibre neutre du noyau du ski, zone dans laquelle les forces de compression et de traction sont équilibrées à l'intérieur du ski, améliore les caractéristiques de résistance en flexion transversale, en flexion latérale et en torsion.This ski has longitudinal reinforcing elements forming edges, which bear on the edges, and which ensure good transmission of the reactions of the skier to the underside of the ski. In addition, the fact that the assembly between the shell and the edges is carried out substantially at mid-height of the ski, that is to say substantially at the same height as the neutral fiber of the ski core, area in which the compression and traction forces are balanced inside the ski, improves the resistance characteristics in transverse bending, in lateral bending and in torsion.

Avantageusement, dans ces conditions, le tissu de renforcement supérieur de la coque est constitué par des fibres unidirectionnelles orientées uniquement dans le sens longitudinal du ski, ce qui constitue un facteur d'économie, sans nuire aux qualités du ski.Advantageously, under these conditions, the upper reinforcement fabric of the shell is made up of unidirectional fibers oriented only in the longitudinal direction of the ski, which constitutes a factor of economy, without harming the qualities of the ski.

Les chants peuvent être perpendiculaires au plan de la semelle, ou inclinés par rapport à cette perpendiculaire. Dans la mesure où la face extérieure de chaque élément de renforcement formant chant est inclinée, cette inclinaison peut être différente ou égale à celle de la partie inclinée de la coque. De plus, cette inclinaison peut être symétrique ou asymétrique d'un chant par rapport à l'autre chant d'un même ski.The edges may be perpendicular to the plane of the sole, or inclined with respect to this perpendicular. Insofar as the outer face of each reinforcing element forming a song is inclined, this inclination may be different or equal to that of the inclined part of the shell. In addition, this inclination can be symmetrical or asymmetrical with one edge relative to the other edge of the same ski.

Les éléments de renforcement disposés des deux côtés du ski peuvent présenter des caractéristiques de forme et/ou concernant la nature des matériaux identiques ou différentes, et posséder une largeur constante sur toute la longueur du ski ou au contraire posséder une largeur variable.The reinforcing elements arranged on both sides of the ski may have characteristics of shape and / or relating to the nature of the same or different materials, and have a constant width over the entire length of the ski or, on the contrary, have a variable width.

Chaque élément de renforcement peut être monolithique ou constitué par plusieurs couches verticales et juxtaposées s'étendant sur la longueur du ski. Ces différentes couches de matériau peuvent posséder la même hauteur ou au contraire les différentes couches peuvent posséder des hauteurs décroissantes depuis la couche située du côté du noyau du ski jusqu'à celle située le plus à l'extérieur.Each reinforcing element can be monolithic or constituted by several vertical and juxtaposed layers extending over the length of the ski. These different layers of material can have the same height or, on the contrary, the different layers can have decreasing heights from the layer located on the side of the core of the ski to that located furthest outside.

Selon une autre forme d'exécution, les deux éléments de renforcement disposés des deux côtés du ski possèdent des hauteurs différentes. On obtient alors un ski asymétrique. Il est possible de disposer d'un ski avec, notamment dans la zone de patin, un élément de renforcement situé du côté de la carre intérieure, qui possède une hauteur supérieure à celle de l'élément de renforcement situé du côté de la carre extérieure. Cet agencement fournit un ski possédant de bonnes qualités de guidage sur la neige dure, ainsi que de bonnes qualités de comportement en neige poudreuse, du fait qu'il est possible d'amincir le ski du côté de la carre extérieure.According to another embodiment, the two reinforcing elements arranged on the two sides of the ski have different heights. We then obtain an asymmetrical ski. It is possible to have a ski with, in particular in the skating area, an element of reinforcement located on the side of the inner edge, which has a height greater than that of the reinforcing element located on the side of the outer edge. This arrangement provides a ski having good qualities of guidance on hard snow, as well as good qualities of behavior in powder snow, because it is possible to thin the ski on the side of the outer edge.

Selon une autre forme d'exécution de ce ski, les éléments de renforcement longitudinaux appartiennent à une même pièce qui occupe la totalité de la largeur du ski. Cette pièce peut être de section rectangulaire, de section en forme générale de H, ou encore de section en forme générale de U. Dans ce cas, la partie de la pièce située au centre du ski, constitue une partie du noyau du ski.According to another embodiment of this ski, the longitudinal reinforcing elements belong to the same part which occupies the entire width of the ski. This part can be of rectangular section, of section in the general shape of H, or of section in the general shape of U. In this case, the part of the part located in the center of the ski, constitutes a part of the core of the ski.

Conformément à une forme d'exécution de ce ski, la coque comporte au niveau de ses deux bords longitudinaux, deux retours parallèles au plan de la semelle du ski, prenant appui sur les deux éléments de renforcement.According to one embodiment of this ski, the shell has at its two longitudinal edges, two returns parallel to the plane of the sole of the ski, bearing on the two reinforcing elements.

Selon une autre forme d'exécution, la coque comporte au niveau de ses deux bords longitudinaux deux retours inclinés par rapport au plan de la semelle du ski, prenant appui sur les faces supérieures inclinées de chacun des éléments de renforcement.According to another embodiment, the shell has at its two longitudinal edges two inclined returns relative to the plane of the sole of the ski, bearing on the inclined upper faces of each of the reinforcing elements.

Avantageusement, ces deux retours constituant les bords de la coque sont de largeur constante sur toute la longueur du ski.Advantageously, these two returns constituting the edges of the shell are of constant width over the entire length of the ski.

Les deux retours de la coque peuvent être situés au niveau des faces latérales du ski ou en retrait vis-à-vis de ces faces latérales.The two hull returns can be located at the side faces of the ski or set back from these side faces.

Conformément à une possibilité, chaque élément de renforcement possède une largeur supérieure à celle du retour correspondant de la coque, et remonte pour partie le long de la partie inclinée interne de la coque.According to one possibility, each reinforcing element has a width greater than that of the corresponding return of the shell, and partly rises along the internal inclined part of the shell.

Selon une autre forme d'exécution de ce ski, les bords de la coque sont encastrés dans les éléments de renforcement longitudinaux.According to another embodiment of this ski, the edges of the shell are embedded in the longitudinal reinforcing elements.

Suivant une forme d'exécution, ce ski contient une plaque de renfort métallique ou en stratifié de verre, de carbone ou d'aramide qui, s'étendant sur toute ou partie de la longueur du ski, occupe toute la largeur de celui-ci.According to one embodiment, this ski contains a metal reinforcement plate or a laminate of glass, carbon or aramid which, extending over all or part of the length of the ski, occupies the entire width thereof. .

Cette plaque métallique assure un renforcement du ski en flexion latérale. Elle peut être présente sur toute la longueur du ski ou sur une partie seulement de cette longueur, et de façon préférentielle dans la zone de patin. Cette plaque peut être réalisée en un alliage léger, tel qu'un alliage d'aluminium connu sous la marque ZICRAL. Cette plaque peut être pleine ou ajourée.This metal plate provides reinforcement of the ski in lateral bending. It can be present over the entire length of the ski or on only part of this length, and preferably in the skate area. This plate can be made of a light alloy, such as an aluminum alloy known under the brand ZICRAL. This plate can be full or perforated.

Suivant une forme d'exécution, la plaque de renfort est insérée entre la face supérieure des éléments de renforcement longitudinaux et la base de la coque.According to one embodiment, the reinforcing plate is inserted between the upper face of the longitudinal reinforcing elements and the base of the shell.

Suivant une autre forme d'exécution, les bords longitudinaux de la plaque de renfort sont encastrés dans les éléments de renforcement longitudinaux. Dans ce cas, la plaque métallique est encastrée dans les éléments de renforcement longitudinaux avant injection de la mousse de polyuréthanne constitutive du noyau, la plaque étant parfaitement positionnée et retenue dans la position souhaitée grâce à l'encastrement de ses bords dans des rainures prévues dans les éléments de renforcement longitudinaux.According to another embodiment, the longitudinal edges of the reinforcing plate are embedded in the longitudinal reinforcing elements. In this case, the metal plate is embedded in the longitudinal reinforcing elements before injection of the polyurethane foam constituting the core, the plate being perfectly positioned and retained in the desired position thanks to the embedding of its edges in grooves provided in the longitudinal reinforcing elements.

Conformément à une autre forme d'exécution, la plaque de renfort est profilée par plusieurs plis longitudinaux et est écartée de la coque.According to another embodiment, the reinforcing plate is profiled by several longitudinal folds and is spaced from the shell.

De toute façon, l'invention sera bien comprise à l'aide de la description qui suit, en référence au dessin schématique annexé représentant, à titre d'exemples non limitatifs, plusieurs formes d'exécution de ce ski :

  • Figure 1 est une vue de côté d'un ski selon l'invention ;
  • Figures 2 et 3 en sont deux vues en coupe transversale et à échelle agrandie selon les lignes II-II et III-III de figure 1 ;
  • Figures 4 et 5 sont deux vues similaires, respectivement à figures 2 et 3, d'une variante d'exécution de ce ski ;
  • Figure 6 est une vue en coupe transversale similaire à figure 4 représentant une variante d'exécution de ce ski ;
  • Figure 7 est une vue en coupe transversale, similaire à figure 2, représentant une variante d'exécution de ce ski ;
  • Figures 8 à 10 sont trois vues en coupe transversale d'un ski dans lequel chaque élément de renforcement latéral est réalisé à partir de plusieurs couches ;
  • Figure 11 est une vue en coupe transversale d'un ski dans lequel chaque base de la coque s'étend sur une partie seulement de la largeur de l'élément de renforcement correspondant ;
  • Figure 12 est une vue en coupe transversale d'un ski dans lequel la largeur de chaque élément de renforcement est supérieure à la largeur de chaque retour de la coque ;
  • Figure 13 est une vue en coupe transversale d'un ski dans lequel les bords de la coque sont encastrés dans les éléments de renforcement longitudinaux ;
  • Figure 14 est une vue en coupe transversale d'un ski dans lequel les hauteurs des deux éléments de renforcement longitudinaux sont différentes ;
  • Figures 15 à 17 sont trois vues en coupe transversale de ski dans lesquelles les éléments de renforcement longitudinaux appartiennent à la même pièce ;
  • Figures 18 à 21 sont quatre vues en coupe transversale de ski comportant des plaques de renfort.
In any case, the invention will be clearly understood with the aid of the description which follows, with reference to the appended schematic drawing representing, by way of nonlimiting examples, several embodiments of this ski:
  • Figure 1 is a side view of a ski according to the invention;
  • Figures 2 and 3 are two views in cross section and on an enlarged scale along lines II-II and III-III of Figure 1;
  • Figures 4 and 5 are two similar views, respectively to Figures 2 and 3, of an alternative embodiment of this ski;
  • Figure 6 is a cross-sectional view similar to Figure 4 showing an alternative embodiment of this ski;
  • Figure 7 is a cross-sectional view, similar to Figure 2, showing an alternative embodiment of this ski;
  • Figures 8 to 10 are three cross-sectional views of a ski in which each lateral reinforcement element is produced from several layers;
  • Figure 11 is a cross-sectional view of a ski in which each base of the hull extends over only part of the width of the corresponding reinforcing element;
  • Figure 12 is a cross-sectional view of a ski in which the width of each reinforcing element is greater than the width of each return of the hull;
  • Figure 13 is a cross-sectional view of a ski in which the edges of the shell are embedded in the longitudinal reinforcing elements;
  • Figure 14 is a cross-sectional view of a ski in which the heights of the two longitudinal reinforcing elements are different;
  • Figures 15 to 17 are three cross-sectional views of the ski in which the longitudinal reinforcing elements belong to the same part;
  • Figures 18 to 21 are four cross-sectional views of ski comprising reinforcement plates.

Le ski 2 représenté à la figure 1 comprend une spatule 3, une zone de patin 4 et un talon 5. Ce ski est constitué essentiellement par un noyau de remplissage 6, par exemple en mousse de polyuréthanne, reposant sur la partie inférieure du ski, qui comprend une semelle 7 délimitée par deux carres métalliques longitudinales 8. Sur chaque carre 8 repose un élément de renforcement 9 formant un chant du ski. Dans la forme d'exécution représentée aux figures 2 et 3, les chants 9 sont perpendiculaires au plan de la semelle 7. La face supérieure du ski, ainsi que les parties supérieures des parois latérales, sont constituées par une coque 10. Cette coque 10 comporte deux rebords 12, sensiblement parallèles au plan de la semelle, prenant appui contre les deux faces supérieures, de même orientation, que comportent les chants 9. A cette coque 10 est associée une feuille de renfort 15, disposée sous la coque au contact de cette dernière, constituée par exemple par un tissu à fibres unidirectionnelles orientées longitudinalement, imprégné de résine. Une feuille de renfort inférieur 16 est disposée au-dessus de la semelle 7.The ski 2 shown in FIG. 1 comprises a tip 3, a skid area 4 and a heel 5. This ski essentially consists of a filling core 6, for example made of polyurethane foam, resting on the lower part of the ski, which comprises a sole 7 delimited by two longitudinal metal edges 8. On each edge 8 rests a reinforcing element 9 forming a edge of the ski. In the embodiment shown in Figures 2 and 3, the edges 9 are perpendicular to the plane of the sole 7. The upper face of the ski, as well as the upper parts of the side walls, consist of a shell 10. This shell 10 has two flanges 12, substantially parallel to the plane of the sole, bearing against the two upper faces, of the same orientation, which comprise the edges 9. With this shell 10 is associated a reinforcing sheet 15, placed under the shell in contact with the latter, constituted for example by a fabric with unidirectional fibers oriented longitudinally, impregnated with resin. A lower reinforcement sheet 16 is arranged above the sole 7.

Selon la caractéristique essentielle de l'invention, les hauteurs respectives (H1, H2) des chants 9 et de la coque 10 sont sensiblement égales, de sorte que la zone d'appui et d'assemblage des bords 12 de la coque 10 et des chants 9 est située sensiblement à la même hauteur que la fibre neutre du noyau du ski.According to the essential characteristic of the invention, the respective heights (H1, H2) of the edges 9 and of the shell 10 are substantially equal, so that the support and assembly area of the edges 12 of the shell 10 and edges 9 is located substantially at the same height as the neutral fiber of the ski core.

Il s'agit donc d'un ski comportant des chants 9 assurant une très bonne transmission des efforts depuis la face supérieure du ski équipée de la fixation d'une chaussure jusqu'aux carres 8. En outre, la zone d'assemblage entre la coque et les chants est située sensiblement au niveau de la fibre neutre.It is therefore a ski comprising edges 9 ensuring a very good transmission of forces from the upper face of the ski equipped with the attachment of a boot to the edges 8. In addition, the assembly zone between the shell and edges is located substantially at the level of the neutral fiber.

Les skis représentés sur les figures suivantes sont des représentations simplifiées dans lesquelles certains éléments, tels que les feuilles de renforcement 15, 16 ne sont pas représentés.The skis shown in the following figures are simplified representations in which certain elements, such as the reinforcing sheets 15, 16 are not shown.

Les figures 4 et 5, qui correspondent aux figures 2 et 3 respectivement, représentent un ski comportant des chants 9a inclinés par rapport à la perpendiculaire au plan de la semelle 7.FIGS. 4 and 5, which correspond to FIGS. 2 and 3 respectively, represent a ski comprising edges 9a inclined relative to the perpendicular to the plane of the sole 7.

Dans la forme d'exécution représentée à la figure 6, chaque élément de renforcement longitudinal 9b possède une face extérieure 13 inclinée, et une face intérieure 14 perpendiculaire au plan de la semelle.In the embodiment shown in Figure 6, each longitudinal reinforcing element 9b has an inclined outer face 13, and an inner face 14 perpendicular to the plane of the sole.

Le ski représenté à la figure 7 est une variante du ski de figures 1 à 3, dans lequel chaque rebord 12 de la coque 10 prend appui sur la face supérieure d'un chant 9, inclinée de haut en bas et de l'intérieur vers l'extérieur.The ski shown in FIG. 7 is a variant of the ski in FIGS. 1 to 3, in which each edge 12 of the shell 10 is supported on the upper face of a edge 9, inclined up and down and from the inside towards outside.

Les figures 8 à 10 représentent trois skis, dans lesquels chaque élément de renforcement est constitué par trois couches de matériau juxtaposées verticalement 19a, 19b 19c. Dans la forme d'exécution représentée à la figure 8, les trois couches possèdent la même hauteur et le retour 12 associé à chaque côté du ski s'étend sur toute la largeur des trois couches, constituées de différents matériaux, tels que bois, résines phénoliques, alliage d'aluminium, acrylonitrile-butadiène-styrène,.... Dans la forme d'exécution représentée aux figures 9 et 10, les hauteurs des couches 19a, 19b et 19c, sont décroissantes depuis celle 19a située du côté du noyau du ski vers celle 19c située à l'extérieur. A la figure 9, chaque retour 12 de la coque ne prend appui que sur la couche 19a, et les faces supérieures des couches 19c et 19b sont coupées en biais de façon à former une surface inclinée. Dans la forme d'exécution représentée à la figure 10, chaque retour 12 ne prend appui que sur la face supérieure de la couche 19a, et les faces supérieures des couches 19b et 19c sont parallèles au plan supérieur de la coque, ce qui se traduit par une structure générale en forme d'escalier.Figures 8 to 10 show three skis, in which each reinforcing element is constituted by three layers of material juxtaposed vertically 19a, 19b 19c. In the embodiment shown in Figure 8, the three layers have the same height and the return 12 associated with each side of the ski extends over the entire width of the three layers, made of different materials, such as wood, resins phenolic, aluminum alloy, acrylonitrile-butadiene-styrene, .... In the embodiment shown in Figures 9 and 10, the heights of layers 19a, 19b and 19c, are decreasing from that 19a located on the side of the core from the ski to that 19c located outside. In FIG. 9, each return 12 of the shell bears only on the layer 19a, and the upper faces of the layers 19c and 19b are cut at an angle so as to form an inclined surface. In the embodiment shown in FIG. 10, each return 12 bears only on the upper face of the layer 19a, and the upper faces of the layers 19b and 19c are parallel to the upper plane of the hull, which results in a general staircase-like structure.

La figure 11 représente un ski, dans lequel chaque retour 12 de la coque 10 est en appui sur une partie seulement de la largeur d'un élément de renforcement 9 et est encastré dans celui-ci.FIG. 11 represents a ski, in which each return 12 of the shell 10 is supported on only part of the width of a reinforcing element 9 and is embedded therein.

Dans la forme d'exécution représentée à la figure 12, la largeur de chaque élément de renforcement 29 est supérieure à la largeur du retour correspondant 12 de la coque, et l'élément de renforcement remonte pour partie sous la coque, de telle sorte qu'il n'est pas visible sur toute sa hauteur depuis l'extérieur du ski.In the embodiment shown in FIG. 12, the width of each reinforcement element 29 is greater than the width of the corresponding return 12 of the shell, and the reinforcement element rises partly under the shell, so that '' it is not visible over its entire height from outside the ski.

Dans la forme d'exécution représentée à la figure 13, la coque 10 ne comporte pas de retours latéraux, mais simplement des bords 16 d'orientation sensiblement verticale qui sont encastrés dans les éléments de renforcement longitudinaux 9.In the embodiment shown in FIG. 13, the shell 10 does not have lateral returns, but simply edges 16 of substantially vertical orientation which are embedded in the longitudinal reinforcing elements 9.

La figure 14 représente un ski asymétrique, comportant un élément de renforcement 39a situé du côté de la carre intérieure, de hauteur supérieure à celle de l'élément de renforcement 39b situé du côté de la carre extérieure. Dans ce cas, la coque comprend une partie plane correspondant à la face supérieure du ski, prenant appui directement sur l'élément de renforcement 39a, une partie inclinée, et un retour 12 prenant appui sur la face supérieure de l'élément de renforcement 39b.FIG. 14 shows an asymmetrical ski, comprising a reinforcing element 39a situated on the side of the inner edge, of height greater than that of the reinforcing element 39b situated on the side of the outer edge. In this case, the shell comprises a flat part corresponding to the upper face of the ski, bearing directly on the reinforcement element 39a, an inclined part, and a return 12 bearing on the upper face of the reinforcement element 39b .

Le ski représenté à la figure 15 comprend une pièce 49 de section rectangulaire, réalisée en un matériau dur, par exemple en bois, s'étendant sur toute la largeur du ski, et formant les éléments de renforcement longitudinaux.The ski shown in FIG. 15 comprises a part 49 of rectangular section, made of a hard material, for example of wood, extending over the entire width of the ski, and forming the longitudinal reinforcing elements.

La figure 16 représente un ski comportant une pièce 59 de section en H, dont les deux branches 59a forment les éléments de renforcement longitudinaux et dont la partie centrale 59b forme une partie du noyau du ski.FIG. 16 represents a ski comprising a part 59 of H section, the two branches 59a of which form the longitudinal reinforcing elements and the central part 59b of which forms part of the core of the ski.

La figure 17 représente un autre ski comportant une pièce 69 en matériau dur, par exemple en bois, en forme générale de U dont les deux branches 69a forment les éléments de renforcement longitudinaux, et dont l'âme 69b appartient au noyau du ski.FIG. 17 shows another ski comprising a piece 69 of hard material, for example wood, in the general shape of a U, the two branches 69a of which form the longitudinal reinforcing elements, and the core of which 69b belongs to the core of the ski.

Les figures 18 à 21 représentent des skis, dans lesquels les mêmes éléments sont désignés par les mêmes références que précédemment. Dans chacun de ces ski est prévue une plaque de renforcement, métallique ou en stratifié, assurant un renforcement du ski en flexion latérale. Dans la forme d'exécution représentée à la figure 18, la plaque 13 est insérée entre la face supérieure des éléments de renforcement 9 et la base de la coque.Figures 18 to 21 show skis, in which the same elements are designated by the same references as above. In each of these skis is provided a plate of reinforcement, metallic or laminate, ensuring reinforcement of the ski in lateral bending. In the embodiment shown in Figure 18, the plate 13 is inserted between the upper face of the reinforcing elements 9 and the base of the shell.

Dans la forme d'exécution représentée à la figure 19, la plaque 13a est encastrée par ses bords longitudinaux dans les parois en regard des deux éléments de renforcement 9, ce qui permet de réaliser un parfait positionnement de la plaque avant injection de la mousse de matière synthétique destinée à former le noyau.In the embodiment shown in Figure 19, the plate 13a is embedded by its longitudinal edges in the walls opposite the two reinforcing elements 9, which allows for a perfect positioning of the plate before injection of the foam. synthetic material intended to form the core.

Dans les formes d'exécution représentées aux figures 20 et 21, la plaque de renfort, respectivement 13c et 13d, est profilée par des plis longitudinaux, et insérée entre la face supérieure des éléments de renfort 9 et les retours 12 de la coque. Dans la forme d'exécution représentée à la figure 20, la plaque 13c est profilée dans le même sens que la coque, tandis que dans la forme d'exécution représentée à la figure 21 la plaque 13d est profilée en sens inverse de la coque.In the embodiments shown in Figures 20 and 21, the reinforcing plate, respectively 13c and 13d, is profiled by longitudinal folds, and inserted between the upper face of the reinforcing elements 9 and the returns 12 of the shell. In the embodiment shown in Figure 20, the plate 13c is profiled in the same direction as the shell, while in the embodiment shown in Figure 21 the plate 13d is profiled in the opposite direction to the shell.

Il est avantageusement possible d'insérer un joint élastique entre la base de la coque et les éléments de renforcement.It is advantageously possible to insert an elastic seal between the base of the shell and the reinforcing elements.

L'angle que forment les parois latérales de la coque avec la paroi supérieure de celle-ci peut varier sur la longueur du ski, cet angle étant par exemple plus grand dans la zone de patin que dans les zones d'extrémités, spatule et talon du ski.The angle formed by the side walls of the shell with the upper wall thereof can vary over the length of the ski, this angle being for example greater in the skate area than in the end areas, tip and heel ski.

L'arête délimitant la paroi supérieure de la coque, et chaque paroi inclinée de celle-ci, peut être parallèle à l'axe médian longitudinal du ski, ou, au contraire, posséder une orientation qui varie par rapport à cet axe, la ligne que forme cette arête, droite ou incurvée, pouvant par exemple diverger de l'arrière vers l'avant du ski.The edge delimiting the upper wall of the shell, and each inclined wall thereof, may be parallel to the longitudinal median axis of the ski, or, on the contrary, have an orientation which varies with respect to this axis, the line that forms this edge, straight or curved, which can for example diverge from the rear towards the front of the ski.

Comme il va de soi, l'invention ne se limite pas aux seules formes d'exécution de ce ski, décrites ci-dessus à titres d'exemples. C'est ainsi que certaines caractéristiques décrites dans le cadre d'une combinaison pourraient être mises en oeuvre dans le cadre d'une autre combinaison, ou encore que la forme de la coque pourrait être différente, et par exemple se présenter avec une section en forme de tronçon d'ellipse dans les zones d'extrémité du ski, sans que l'on sorte pour autant du cadre de l'invention.It goes without saying that the invention is not limited to the sole embodiments of this ski, described above by way of examples. Thus certain characteristics described within the framework of a combination could be implemented within the framework of another combination, or even that the shape of the shell could be different, and for example be presented with a section in shape of ellipse section in the end zones of the ski, without departing from the scope of the invention.

Claims (34)

Ski comprenant un noyau de remplissage en une ou plusieurs parties, par exemple en mousse de polyuréthanne, une face inférieure équipée d'une semelle de glissement (7) et délimitée par deux carres métalliques longitudinales (8), ainsi que des feuilles de renforcement et de décoration, caractérisé en ce qu'il comporte des éléments de renforcement (9) longitudinaux prenant appui chacun sur une carre (8), et formant les chants du ski, qui s'étendent, au moins pour l'un d'eux, sur une partie de la hauteur de celui-ci, et une coque (10) formant la face supérieure et une partie d'au moins une des parois latérales du ski, et dont les bords longitudinaux (12) reposent et sont fixés sur la face supérieure des chants (9), les hauteurs respectives d'un chant et de la coque sur au moins un des côtés du ski variant dans les mêmes proportions sur la longueur du ski.Ski comprising a filling core in one or more parts, for example in polyurethane foam, a lower face equipped with a sliding sole (7) and delimited by two longitudinal metal edges (8), as well as reinforcing sheets and decorative, characterized in that it comprises longitudinal reinforcing elements (9) each bearing on an edge (8), and forming the edges of the ski, which extend, at least for one of them, over a part of the height thereof, and a shell (10) forming the upper face and a part of at least one of the side walls of the ski, and whose longitudinal edges (12) rest and are fixed on the face upper edges (9), the respective heights of a song and the shell on at least one of the sides of the ski varying in the same proportions over the length of the ski. Ski selon la revendication 1, caractérisé en ce que la hauteur (H1) des chants (9) est sensiblement égale à la hauteur (H2) de la coque.Ski according to claim 1, characterized in that the height (H1) of the edges (9) is substantially equal to the height (H2) of the hull. Ski selon l'une quelconque des revendications 1 et 2, caractérisé en ce que la face extérieure de chaque élément de renforcement (9) est sensiblement perpendiculaire au plan de la semelle (7).Ski according to either of Claims 1 and 2, characterized in that the external face of each reinforcement element (9) is substantially perpendicular to the plane of the sole (7). Ski selon l'une quelconque des revendications 1 et 2, caractérisé en ce que la face extérieure d'au moins un élément de renforcement (9) est inclinée par rapport à la perpendiculaire au plan de la semelle (7).Ski according to either of Claims 1 and 2, characterized in that the external face of at least one reinforcing element (9) is inclined relative to the perpendicular to the plane of the sole (7). Ski selon la revendication 4, caractérisé en ce que l'angle d'inclinaison de la face extérieure (13) de chaque élément de renforcement (9b) est égal à l'angle de la partie inclinée de la coque.Ski according to claim 4, characterized in that the angle of inclination of the external face (13) of each reinforcing element (9b) is equal to the angle of the inclined part of the hull. Ski selon la revendication 4, caractérisé en ce que l'angle d'inclinaison de la face extérieure de chaque élément de renforcement est différent de l'angle de la partie inclinée de la coque.Ski according to claim 4, characterized in that the angle of inclination of the external face of each reinforcing element is different from the angle of the inclined part of the hull. Ski selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'il contient deux éléments de renforcement (9) distincts formant les deux chants du ski.Ski according to any one of Claims 1 to 6, characterized in that it contains two distinct reinforcement elements (9) forming the two edges of the ski. Ski selon la revendication 7, caractérisé en ce que chaque élément de renforcement (9) possède une largeur constante sur toute la longueur du ski.Ski according to claim 7, characterized in that each reinforcing element (9) has a constant width over the entire length of the ski. Ski selon la revendication 7, caractérisé en ce que chaque élément de renforcement possède une largeur variable sur la longueur du ski.Ski according to claim 7, characterized in that each reinforcement element has a variable width over the length of the ski. Ski selon la revendication 7, caractérisé en ce que les deux éléments de renforcement (9) d'un même ski sont identiques.Ski according to claim 7, characterized in that the two reinforcing elements (9) of the same ski are identical. Ski selon la revendication 7, caractérisé en ce que les deux éléments de renforcement d'un même ski possèdent des caractéristiques de forme et/ou concernant la nature des matériaux les constituant, différentes d'un élément à l'autre.Ski according to claim 7, characterized in that the two reinforcing elements of the same ski have characteristics of shape and / or concerning the nature of the materials constituting them, different from one element to another. Ski selon l'une quelconque des revendications 7 à 11, caractérisé en ce que chaque élément de renforcement est constitué par plusieurs couches (19a, 19b, 19c) de matériau, verticales et juxtaposées, s'étendant sur la longueur du ski.Ski according to any one of Claims 7 to 11, characterized in that each reinforcing element consists of several layers (19a, 19b, 19c) of material, vertical and juxtaposed, extending over the length of the ski. Ski selon la revendication 12, caractérisé en ce que les différentes couches (19a, 19b, 19c) formant chaque élément de renforcement possèdent la même hauteur.Ski according to claim 12, characterized in that the different layers (19a, 19b, 19c) forming each reinforcement element have the same height. Ski selon la revendication 12, caractérisé en ce que la hauteur des différentes couches (19a, 19b, 19c) formant chaque élément de renforcement est décroissante depuis la couche (19a) située du côté du noyau du ski jusqu'à celle (19c) située le plus à l'extérieur.Ski according to claim 12, characterized in that the height of the different layers (19a, 19b, 19c) forming each reinforcing element is decreasing from the layer (19a) located on the side of the core of the ski to that (19c) located the most outside. Ski selon l'une quelconque des revendications 7 à 14, caractérisé en ce que les deux éléments de renforcement (39a, 39b) disposés des deux côtés du ski possèdent des hauteurs différentes.Ski according to any one of Claims 7 to 14, characterized in that the two reinforcing elements (39a, 39b) arranged on the two sides of the ski have different heights. Ski selon l'une quelconque des revendications 1 à 6, caractérisé en ce que les éléments de renforcement longitudinaux appartiennent à une même pièce qui occupe la totalité de la largeur du ski.Ski according to any one of claims 1 to 6, characterized in that the longitudinal reinforcing elements belong to the same part which occupies the entire width of the ski. Ski selon la revendication 16, caractérisé en ce que la pièce (49) comportant les éléments de renforcement longitudinaux possède une section rectangulaire.Ski according to claim 16, characterized in that the part (49) comprising the longitudinal reinforcing elements has a rectangular section. Ski selon la revendication 16, caractérisé en ce que la pièce (59) comportant les éléments de renforcement longitudinaux possède une section en forme générale de H.Ski according to claim 16, characterized in that the part (59) comprising the longitudinal reinforcing elements has a section in the general shape of H. Ski selon la revendication 16, caractérisé en ce que la pièce (69) comportant les éléments de renforcement longitudinaux possède une section en forme générale de U.Ski according to claim 16, characterized in that the part (69) comprising the longitudinal reinforcing elements has a section in the general shape of a U. Ski selon l'une quelconque des revendications 1 à 19, caractérisé en ce que la coque (10) comporte au niveau de ses bords longitudinaux, deux retours (12) parallèles au plan de la semelle du ski, prenant appui sur les deux éléments de renforcement.Ski according to any one of claims 1 to 19, characterized in that the shell (10) comprises at its longitudinal edges, two returns (12) parallel to the plane of the sole of the ski, bearing on the two elements of enhancement. Ski selon l'une quelconque des revendications 1 à 19, caractérisé en ce que la coque (10) comporte au niveau de ses bords longitudinaux, deux retours (12) prenant appui sur les faces supérieures des deux éléments de renforcement (9), qui sont inclinées de haut en bas et de l'intérieur vers l'extérieur.Ski according to any one of claims 1 to 19, characterized in that the hull (10) comprises at its longitudinal edges, two returns (12) bearing on the upper faces of the two reinforcing elements (9), which are tilted up and down and from the inside to the outside. Ski selon l'une quelconque des revendications 20 et 21, caractérisé en ce que les deux retours (12) de la coque (10) sont de largeur constante sur toute la longueur du ski.Ski according to any one of claims 20 and 21, characterized in that the two returns (12) of the hull (10) are of constant width over the entire length of the ski. Ski selon l'une quelconque des revendications 20 et 21, caractérisé en ce que les deux retours de la coque recouvrent entièrement les éléments de renforcement (9).Ski according to any one of claims 20 and 21, characterized in that the two returns of the hull completely cover the reinforcing elements (9). Ski selon l'une quelconque des revendications 20 et 21, caractérisé en ce que les deux bords de la coque sont situés en retrait des faces latérales du ski.Ski according to either of Claims 20 and 21, characterized in that the two edges of the shell are set back from the lateral faces of the ski. Ski selon l'une quelconque des revendications 20 et 21, caractérisé en ce que chaque élément de renforcement possède une largeur supérieure à celle du retour correspondant de la coque, et remonte pour partie le long de la partie inclinée de la coque.Ski according to any one of claims 20 and 21, characterized in that each reinforcing element has a width greater than that of the corresponding return of the hull, and partly rises along the inclined part of the hull. Ski selon l'une quelconque des revendications 1 à 19, caractérisé en ce que les bords (16) de la coque (10) sont encastrés dans les éléments de renforcement longitudinaux (9).Ski according to any one of claims 1 to 19, characterized in that the edges (16) of the shell (10) are embedded in the longitudinal reinforcing elements (9). Ski selon l'une quelconque des revendications 1 à 3, caractérisé en ce qu'il contient une plaque de renfort métallique (13) ou en stratifié qui, s'étendant sur toute ou partie de la longueur du ski, occupe toute la largeur de celui-ci.Ski according to any one of claims 1 to 3, characterized in that it contains a metal reinforcement plate (13) or laminate which, extending over all or part of the length of the ski, occupies the entire width of this one. Ski selon la revendication 27, caractérisé en ce que la plaque (13) est réalisée en un alliage léger, tel qu'un alliage d'aluminium, connu sous la marque ZICRAL.Ski according to claim 27, characterized in that the plate (13) is made of a light alloy, such as an aluminum alloy, known under the brand ZICRAL. Ski selon l'une quelconque des revendications 27 et 28, caractérisé en ce que la plaque est ajourée.Ski according to any one of claims 27 and 28, characterized in that the plate is perforated. Ski selon l'une quelconque des revendications 27 à 29, caractérisé en ce que la plaque de renfort (13) est insérée entre la face supérieure des éléments de renforcement longitudinaux (9) et la base des bords (12) de la coque (10).Ski according to any one of claims 27 to 29, characterized in that the reinforcement plate (13) is inserted between the face upper longitudinal reinforcement elements (9) and the base of the edges (12) of the shell (10). Ski selon l'une quelconque des revendications 27 à 29, caractérisé en ce que les bords longitudinaux de la plaque de renfort (13a) sont encastrés dans les éléments de renforcement longitudinaux (9).Ski according to any one of claims 27 to 29, characterized in that the longitudinal edges of the reinforcing plate (13a) are embedded in the longitudinal reinforcing elements (9). Ski selon la revendication 30, caractérisé en ce que la plaque de renfort (13c, 13d) est profilée par plusieurs plis longitudinaux et est écartée de la coque (10).Ski according to claim 30, characterized in that the reinforcing plate (13c, 13d) is profiled by several longitudinal folds and is spaced from the hull (10). Ski selon l'une quelconque des revendications 1 à 32, caractérisé en ce qu'un joint élastique est inséré entre la base de la coque et les éléments de renforcement (9).Ski according to any one of claims 1 to 32, characterized in that an elastic seal is inserted between the base of the shell and the reinforcing elements (9). Ski selon l'une quelconque des revendications 1 à 33, caractérisé en ce que le tissu de renforcement de la coque, disposé au contact de la face intérieure de celle-ci, est constitué par des fibres unidirectionnelles orientées dans le sens longitudinal du ski.Ski according to any one of claims 1 to 33, characterized in that the reinforcement fabric of the hull, placed in contact with the inner face of the latter, consists of unidirectional fibers oriented in the longitudinal direction of the ski.
EP94420119A 1993-04-16 1994-04-13 Ski with side walls and upper shell Expired - Lifetime EP0620027B2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9304727A FR2703915B1 (en) 1993-04-16 1993-04-16 Ski with edges and upper shell.
FR9304727 1993-04-16

Publications (3)

Publication Number Publication Date
EP0620027A1 true EP0620027A1 (en) 1994-10-19
EP0620027B1 EP0620027B1 (en) 1996-09-04
EP0620027B2 EP0620027B2 (en) 2003-01-02

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EP94420119A Expired - Lifetime EP0620027B2 (en) 1993-04-16 1994-04-13 Ski with side walls and upper shell

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Country Link
US (1) US5496053A (en)
EP (1) EP0620027B2 (en)
JP (1) JP2826266B2 (en)
AT (1) ATE142118T1 (en)
DE (1) DE69400455T3 (en)
FR (1) FR2703915B1 (en)

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EP0773048A1 (en) * 1995-11-10 1997-05-14 Skis Rossignol S.A. Snowboard
EP0931569A1 (en) * 1998-01-28 1999-07-28 Skis Rossignol S.A. Sliding board with sidewalls having reinforcements on a part of the length
US6851699B2 (en) 2000-08-16 2005-02-08 K-2 Corporation Snowboard with partial sidewall
EP2353672A1 (en) * 2010-02-05 2011-08-10 SKIS Rossignol Glideboard for snow with sidewalls of variable width
EP3885009A1 (en) * 2020-03-25 2021-09-29 Head Technology GmbH Sliding board body with wooden core and pu foam connecting layers below and/or above the core

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FR2734489B1 (en) * 1995-05-22 1997-07-04 Rossignol Sa "HALF-SHELL" SNOWBOARD ON SNOW, PROVIDED WITH HULL SUPPORT EDGES
FR2780294B1 (en) * 1998-06-25 2000-08-11 Rossignol Sa SNOW SNOWBOARD
FR2798297B1 (en) 1999-09-09 2001-11-16 Rossignol Sa SKIING, OR OTHER SNOWBOARD, COMPRISING RIGID AND SEPARATE SIDE EDGES
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US20020089149A1 (en) * 2001-01-05 2002-07-11 Scott Barbieri Gliding board with varying bending properties
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FR2847483B1 (en) * 2002-11-22 2004-12-24 Rossignol Sa SLIDING BOARD AND METHOD FOR MANUFACTURING SUCH A SLIDING BOARD
US20050127637A1 (en) * 2003-12-02 2005-06-16 Melvin Harper Riser for narrow carving skis
US7445227B2 (en) * 2005-03-16 2008-11-04 Harris Jr Gerald W Ski with improved edging characteristics
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AT11519U1 (en) 2010-01-27 2010-12-15 Atomic Austria Gmbh METHOD FOR PRODUCING AN OUTER LIMITING ELEMENT FOR A SLIDING BODY AND METHOD FOR PRODUCING A SLIDING BODY THEREFORE EQUIPPED
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JP3012698U (en) * 1994-12-20 1995-06-20 株式会社小賀坂スキー製作所 Ski
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FR2956035A1 (en) * 2010-02-05 2011-08-12 Rossignol Sa SLIDING BOARD ON SNOW WITH VARIABLE WIDTH EDGES
EP3885009A1 (en) * 2020-03-25 2021-09-29 Head Technology GmbH Sliding board body with wooden core and pu foam connecting layers below and/or above the core

Also Published As

Publication number Publication date
US5496053A (en) 1996-03-05
JPH08117386A (en) 1996-05-14
FR2703915B1 (en) 1995-06-02
DE69400455D1 (en) 1996-10-10
JP2826266B2 (en) 1998-11-18
EP0620027B2 (en) 2003-01-02
DE69400455T2 (en) 1997-02-06
EP0620027B1 (en) 1996-09-04
FR2703915A1 (en) 1994-10-21
DE69400455T3 (en) 2003-08-07
ATE142118T1 (en) 1996-09-15

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