EP1484091A1 - Ski for alpine skiing - Google Patents

Ski for alpine skiing Download PDF

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Publication number
EP1484091A1
EP1484091A1 EP04012896A EP04012896A EP1484091A1 EP 1484091 A1 EP1484091 A1 EP 1484091A1 EP 04012896 A EP04012896 A EP 04012896A EP 04012896 A EP04012896 A EP 04012896A EP 1484091 A1 EP1484091 A1 EP 1484091A1
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EP
European Patent Office
Prior art keywords
ski
layers
upper reinforcement
reinforcement
core
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Granted
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EP04012896A
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German (de)
French (fr)
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EP1484091B1 (en
Inventor
Nicolas Puget
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Salomon SAS
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Salomon SAS
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Priority to SI200430785T priority Critical patent/SI1484091T1/en
Publication of EP1484091A1 publication Critical patent/EP1484091A1/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

Definitions

  • the invention relates to a ski intended for alpine skiing, as well as a pair of skis.
  • a ski comprises a central core which is surrounded by layers of reinforcement and which includes on the bottom a gliding sole with two edges, and on the top a layer of decor.
  • patent application EP 907 390 describes a pair of skis where each ski has edges curved according to asymmetrical curves so that the internal edge of one ski and the outer edge of the other ski have the same center of curvature taking into account the relative position that the skier imposes on these two skis during a turn on the snow.
  • An object of the invention is to propose a ski of asymmetrical construction which is still better suited to skiing using the "carving" technique.
  • the invention provides a ski comprising a central core, a sub-assembly lower reinforcement located under the core and resting on a gliding sole which is bordered by two side edges, and an upper reinforcement sub-assembly located on the top of the core, and covered with a decorative layer, each of the reinforcing sub-assemblies comprising one or more layers, at least one of the upper reinforcing layers having a central portion covering the top of the core and at least one descending side panel towards a square. Skiing is characterized by the fact that at least one of the layers of reinforcement of the upper reinforcement sub-assembly has an asymmetrical structure at its side panels along at least part of its length.
  • the ski represented in FIG. 1 is presented as a beam 1 elongated according to a longitudinal direction and slightly arched in a vertical plane.
  • the ski has a central part 2 designed to receive the elements for retaining the boot, and the front and rear parts 4 and 5 which terminate respectively with the tip 6 and the heel 7.
  • the ski has a lower sliding surface 8 which is bordered by two edges 9 and 10, an upper decoration surface 11 and side edges 13 and 14 between the upper surface and the side edges.
  • the ski structure includes a central core 6.
  • the core is in all suitable material, in particular wood or injected or machined foam, for example polyurethane foam. As is known its dimensions in section can vary along the length of the ski, and it can be formed of several juxtaposed elements transversely and / or vertically.
  • the core 6 rests on a lower reinforcement sub-assembly 15, which itself rests on a sliding sole 16.
  • the sliding sole 16 provides the lower sliding surface 8.
  • the lower reinforcement sub-assembly 15 comprises two reinforcing layers, a lower layer of fibers impregnated with resin 17 and a metallic reinforcing layer 18, for example made of aluminum alloy. Reinforcement layers can be formed of several sublayers.
  • An upper reinforcement sub-assembly 19 is disposed above the core 6. It has preferably the same type of structure as the lower sub-assembly, with a layer of metallic reinforcement 20 and a reinforcing layer 21 of fibers impregnated with resin.
  • the whole is covered with an outer layer 23 which is decorated and provides the surface top 11 decoration.
  • the subsets reinforcements preferably have the same type of structure to ensure stability the camber of the ski.
  • the structure of the ski is not the same along the two lateral sides of the ski. We know that significant efforts cross these areas in especially when the skier takes turns. Having a different structure allows to manage the support of the ski differently on its external and internal edges, and therefore to manage differently the support of the interior and exterior skis at the turn.
  • the metal reinforcing layer 20 has a portion central 20c which covers the top of the core and a side panel 20a of this layer descends the along one side of the ski, side 14. On the other side, the reinforcing layer stops at the junction between the top of the core and the opposite flank 13.
  • the fiber reinforcement layer 21 has a central portion 21c which covers the top of the core and a side panel 21a descends along on the other side 13 of the ski. The reinforcing layer 21 does not cover the opposite flank 14.
  • the ski has a structure in hybrid box with two layers of reinforcement superimposed on the top and bottom of the core, a metallic connection reinforcement along a sidewall and a fiber connection reinforcement on the other.
  • the similar structure of the ski on the top and the bottom of the core ensures stability ski camber.
  • the metal side panel gives a strong grip, the side panel in fibers allows you to measure the grip of the ski on the snow.
  • the side reinforcements are arranged with a mirror symmetry at the level of their side panels.
  • the metal side panels are on the outside of the skis and the fiber panels on inside.
  • this is not limiting and we can also do the opposite.
  • Figure 4 relates to an alternative embodiment.
  • the layers reinforcement 31 and 32 instead of being stopped at the junction between the top of the core 26 and one of the sides 33 or 34 of the ski, the layers reinforcement 31 and 32 have lateral flaps 31b and 32b which extend the central portion 31c, 32c on the side opposite to the side panels 31a, 32a and which cover the sides of the ski on one part only from their height.
  • This construction method makes it easier to center the reinforcements on the core, in particular for a metal reinforcement when it is shaped beforehand.
  • the central portion 36c, 37c of the layers of reinforcement 36, 37 can be stopped behind the lateral edge 35b, 35c of the core 35 on their side which is not extended by a side panel. This is illustrated in Figure 5 for the layers of reinforcement 36 and 37. Alternatively, one could have a shrinkage only for one of the layers.
  • the core 38 is covered with two layers reinforcement 40 and 41.
  • the layer 40 has a central portion 40c which extends on the upper face of the core 38 and a side panel 40a, 40b which descends along each of the two sides 43 and 44 ski in the direction of the edges so as to form an upper reinforcement shell.
  • the other reinforcing layer 41 is asymmetrical, it has a central portion 41c which covers the upper face of the core 38 and a face 41a which descends along a single flank, the flank 44.
  • the reinforcing layer asymmetric is placed below the symmetrical layer. This is not limiting and a reverse arrangement may also be suitable.
  • the reinforcing layers can be of the same nature, in particular layers of fibers impregnated with resin, or else they may be of a nature different, in particular a fiber reinforcement layer and a metal reinforcement layer or two more layers of fibers of a different nature, for example glass, carbon or aramid fibers embedded in an epoxy matrix.
  • Figure 7 relates to another alternative embodiment of the invention.
  • the subset upper reinforcement includes three layers of reinforcement 48, 49 and 50.
  • the central portions 48c, 49c, 50c of the three reinforcing layers are superimposed with layer 49 interposed between layers 48 and 50.
  • the reinforcing layers are arranged asymmetrically.
  • the pan 49a of the intermediate layer 49 descends along one of the sides of the ski, the flank 53, and side panels 48a and 50a of the other layers descend along the other flank of the ski, flank 54.
  • the layers 48, 49 and 50 are of the same nature or of different in nature depending on their material, density and / or the orientation of the fibers.
  • the upper reinforcement 68 or more generally the upper sub-assembly, has a single side panel 68a which descends the along one side of the ski, the side 73.
  • a neutral element such as, for example, a phenol or ABS edge 70 is pressed against the core 76. From this way, the ski has a monocoque type structure along one of its sides and a sandwich type structure along the other side.
  • FIG. 9 differs from the previous ones in that two spacers 80 and 81 rest on edge on edges 82 and 83. Instead of resting on edges, the sub-assembly upper 85 and the decorative layer 86 rest on the top of the spacers 80 and 81.
  • the upper reinforcement sub-assembly 85 has a structure asymmetric.
  • the sub-assembly 85 comprises two layers 87 and 88 having side panels 87a, 88a which descend in the direction of each spacers 80, 81.
  • Other asymmetrical structures could naturally be suitable.
  • the ski could have a spacer on only one side of the ski.
  • the asymmetry of the ski structure can be homogeneous or heterogeneous.
  • Figure 10 and the following figures show a top view and developed a upper reinforcement layer for different methods of building a ski.
  • the dotted lines represent the fold line between the central portion of the reinforcement and its side panels.
  • FIG. 10 shows a reinforcing layer 90 having a central portion 90c extended on one edge only and over the entire length of the reinforcement by a side panel 90a.
  • the line dotted marked in 92 is the fold line of the reinforcing layer. There is no pan lateral on the other side of the central portion 90a.
  • FIG 11 illustrates a construction variant.
  • Reinforcement 96 has a central portion 96c and two side panels 96a, 96b which extend over the central part 93 and the rear part 94 of skiing. In the front part one of the side panels, in this case the pan 96a, is cut out along the fold line. Therefore it is discontinuous over the length of the reinforcement.
  • Such a reinforcement has a symmetrical structure in the rear part and the central part, and an asymmetrical structure in the front part.
  • a reverse layout could also suit.
  • one of the side panels, in this case the pan 98a is also discontinuous. It is present only in the central part, the other pan 98b is present over the entire length of the reinforcement.
  • Figure 13 shows another alternative embodiment of a discontinuous side panel with a reinforcement 99 including one of the side panels, the pan 99a extends in the rear part and the part central, and the side panel 99b is present in the central part and the front part.
  • the reinforcement 100 has a discontinuous side panel 100a which extends over all the length of the reinforcement except in its central area.
  • the other reinforcement 100b extends over the entire length.
  • the side panel 101a extends in the rear part only of the reinforcement, the other side panel extends over the entire length.
  • the reinforcement 102 has a side panel 102a which extends in the rear part and the other side panel 102b which extends in the front part of the reinforcement.
  • Figure 17 illustrates another embodiment of the invention with a reinforcement 103 including a section, in this case the section 103a is continuous over the length of the reinforcement and the other pan, the pan 103b is discontinuous and has notches 104 which are made on a length corresponding to the height of the edge of the ski.
  • each of the layers can be produced according to the same cutting mode, or according to different cutting modes.
  • one of the upper reinforcing layers has a structural asymmetry at the level of its side panels.
  • the upper reinforcement layers may only cover part of it.

Abstract

The ski has a subassembly of a lower reinforcement (15) placed under a central core (6) and resting on a sliding sole (16) that is delimited by two side edges (9,10). A subassembly of upper reinforcement (19) is placed on top of the core and covered by a decoration layer (23). Layers (20,21) of upper reinforcement subassembly have an asymmetric structure at a level of its lateral sides along a part of its length.

Description

L'invention concerne un ski prévu pour la pratique du ski alpin, ainsi qu'une paire de skis.The invention relates to a ski intended for alpine skiing, as well as a pair of skis.

De façon connue, un ski comprend un noyau central qui est entouré de couches de renfort et qui comprend sur le dessous une semelle de glisse avec deux carres, et sur le dessus une couche de décor.In known manner, a ski comprises a central core which is surrounded by layers of reinforcement and which includes on the bottom a gliding sole with two edges, and on the top a layer of decor.

Ces dernières années la technique de ski a évolué avec la technique dite du "carving". La ligne de cotes des skis a été accentuée, la longueur des skis a été diminuée. En virage, au lieu de faire porter son poids principalement sur un ski, le skieur garde ses appuis sur les deux skis qu'il maintient écartés.In recent years the ski technique has evolved with the technique called "carving". The dimension line of the skis has been increased, the length of the skis has been reduced. When cornering, at instead of putting his weight mainly on a ski, the skier keeps his support on the two skis that he keeps apart.

Pour tenir compte de cette nouvelle technique de ski, on a pensé à donner au ski une structure asymétrique.To take account of this new ski technique, we thought of giving the ski a asymmetrical structure.

Ainsi, par exemple la demande de brevet EP 907 390 décrit une paire de skis où chaque ski a des carres incurvées selon des courbes asymétriques de telle façon que la carre interne d'un ski et la carre externe de l'autre ski aient le même centre de courbure compte tenu de la position relative que le skieur impose à ces deux skis lors d'un virage sur la neige.Thus, for example, patent application EP 907 390 describes a pair of skis where each ski has edges curved according to asymmetrical curves so that the internal edge of one ski and the outer edge of the other ski have the same center of curvature taking into account the relative position that the skier imposes on these two skis during a turn on the snow.

Ce mode de construction donne des résultats satisfaisants, toutefois il influe principalement sur la trajectoire du ski.This construction method gives satisfactory results, however it influences mainly on the ski trajectory.

Un but de l'invention est de proposer un ski de construction asymétrique qui est encore mieux adapté à la pratique du ski selon la technique de "carving".An object of the invention is to propose a ski of asymmetrical construction which is still better suited to skiing using the "carving" technique.

A cet effet, l'invention propose un ski comprenant un noyau central, un sous-ensemble de renfort inférieur situé sous le noyau et reposant sur une semelle de glisse qui est bordée par deux carres latérales, et un sous-ensemble de renfort supérieur situé sur le dessus du noyau, et recouvert par une couche de décoration, chacun des sous-ensembles de renfort comprenant une ou plusieurs couches, l'une au moins des couches de renfort supérieur ayant une portion centrale recouvrant le dessus du noyau et au moins un pan latéral redescendant en direction d'une carre. Le ski est caractérisé par le fait qu'au moins une des couches de renfort du sous-ensemble de renfort supérieur a une structure asymétrique au niveau de ses pans latéraux le long d'au moins une partie de sa longueur.To this end, the invention provides a ski comprising a central core, a sub-assembly lower reinforcement located under the core and resting on a gliding sole which is bordered by two side edges, and an upper reinforcement sub-assembly located on the top of the core, and covered with a decorative layer, each of the reinforcing sub-assemblies comprising one or more layers, at least one of the upper reinforcing layers having a central portion covering the top of the core and at least one descending side panel towards a square. Skiing is characterized by the fact that at least one of the layers of reinforcement of the upper reinforcement sub-assembly has an asymmetrical structure at its side panels along at least part of its length.

De cette façon, on introduit une asymétrie dans la structure de la coque du ski. Cette coque assurant la transmission des efforts entre le dessus du ski et les carres, on peut gérer de façon différente l'appui du skieur sur l'une et l'autre des carres.In this way, an asymmetry is introduced into the structure of the ski shell. This shell ensuring the transmission of forces between the top of the ski and the edges, we can manage differently the support of the skier on one and the other of the edges.

L'invention sera mieux comprise en se référant à la description ci-dessous et aux dessins qui lui sont attachés.

  • La figure 1 représente en vue de dessus un ski.
  • La figure 2 montre en vue de côté le ski de la figure 1.
  • Les figures 3 à 9 représentent une section transversale du ski selon différents modes de mise en oeuvre de l'invention.
  • Les figures 10 à 17 montrent en vue de dessus et en développé une couche de renfort selon différents modes de mise en oeuvre de l'invention.
    • The invention will be better understood by referring to the description below and to the drawings attached to it.
  • Figure 1 shows a top view of a ski.
  • Figure 2 shows in side view the ski of Figure 1.
  • Figures 3 to 9 show a cross section of the ski according to different embodiments of the invention.
  • Figures 10 to 17 show a top view and developed a reinforcing layer according to different embodiments of the invention.

    • Le ski représenté en figure 1 se présente comme une poutre 1 allongée selon une direction longitudinale et légèrement cambrée dans un plan vertical.The ski represented in FIG. 1 is presented as a beam 1 elongated according to a longitudinal direction and slightly arched in a vertical plane.

    De façon connue, le ski présente une partie centrale 2 prévue pour recevoir les éléments de retenue de la chaussure, et des parties avant et arrière 4 et 5 qui se terminent respectivement par la spatule 6 et le talon 7.In known manner, the ski has a central part 2 designed to receive the elements for retaining the boot, and the front and rear parts 4 and 5 which terminate respectively with the tip 6 and the heel 7.

    De façon connue, le ski présente une surface inférieure de glisse 8 qui est bordée par deux carres 9 et 10, une surface supérieure 11 de décoration et des chants latéraux 13 et 14 entre la surface supérieure et les carres latérales.In known manner, the ski has a lower sliding surface 8 which is bordered by two edges 9 and 10, an upper decoration surface 11 and side edges 13 and 14 between the upper surface and the side edges.

    En section, la structure du ski comprend un noyau central 6. Le noyau est en tout matériau approprié, notamment en bois ou en mousse injectée ou usinée, par exemple en mousse de polyuréthane. Ainsi que cela est connu ses dimensions en section peuvent varier sur la longueur du ski, et il peut être formé de plusieurs éléments juxtaposés transversalement et/ou verticalement.In section, the ski structure includes a central core 6. The core is in all suitable material, in particular wood or injected or machined foam, for example polyurethane foam. As is known its dimensions in section can vary along the length of the ski, and it can be formed of several juxtaposed elements transversely and / or vertically.

    Le noyau 6 repose sur un sous-ensemble de renfort inférieur 15, qui lui-même repose sur une semelle de glisse 16. La semelle de glisse 16 fournit la surface inférieure de glisse 8.The core 6 rests on a lower reinforcement sub-assembly 15, which itself rests on a sliding sole 16. The sliding sole 16 provides the lower sliding surface 8.

    Selon le mode de réalisation illustré, le sous-ensemble de renfort inférieur 15 comprend deux couches de renfort, une couche inférieure en fibres imprégnées de résine 17 et une couche de renfort métallique 18, par exemple en alliage d'aluminium. Les couches de renfort peuvent être formées de plusieurs sous-couches.According to the illustrated embodiment, the lower reinforcement sub-assembly 15 comprises two reinforcing layers, a lower layer of fibers impregnated with resin 17 and a metallic reinforcing layer 18, for example made of aluminum alloy. Reinforcement layers can be formed of several sublayers.

    Un sous-ensemble de renfort supérieur 19 est disposé au-dessus du noyau 6. Il présente de préférence le même type de structure que le sous-ensemble inférieur, avec une couche de renfort métallique 20 et une couche 21 de renfort en fibres imprégnées de résine.An upper reinforcement sub-assembly 19 is disposed above the core 6. It has preferably the same type of structure as the lower sub-assembly, with a layer of metallic reinforcement 20 and a reinforcing layer 21 of fibers impregnated with resin.

    L'ensemble est recouvert d'une couche externe 23 qui est décorée et fournit la surface supérieure 11 de décoration.The whole is covered with an outer layer 23 which is decorated and provides the surface top 11 decoration.

    Comme cela a été dit précédemment, sur le dessus et le dessous du noyau les sous-ensembles de renfort ont de préférence le même type de structure pour assurer une stabilité de la cambrure du ski.As mentioned above, on the top and bottom of the core, the subsets reinforcements preferably have the same type of structure to ensure stability the camber of the ski.

    Selon une particularité de l'invention la structure du ski n'est pas la même le long des deux flancs latéraux du ski. On sait que des efforts importants traversent ces zones en particulier lorsque le skieur prend des virages. Le fait d'avoir une structure différente permet de gérer différemment l'appui du ski sur ses carres externe et interne, et donc de gérer différemment l'appui des skis intérieur et extérieur au virage.According to a feature of the invention, the structure of the ski is not the same along the two lateral sides of the ski. We know that significant efforts cross these areas in especially when the skier takes turns. Having a different structure allows to manage the support of the ski differently on its external and internal edges, and therefore to manage differently the support of the interior and exterior skis at the turn.

    Selon le mode de réalisation illustré la couche de renfort métallique 20 a une portion centrale 20c qui couvre le dessus du noyau et un pan latéral 20a de cette couche descend le long d'un seul flanc du ski, le flanc 14. De l'autre côté la couche de renfort s'arrête à la jonction entre le dessus du noyau et le flanc opposé 13. La couche de renfort en fibres 21 a une portion centrale 21c qui couvre le dessus du noyau et un pan latéral 21 a descend le long de l'autre flanc 13 du ski. La couche de renfort 21 ne couvre pas le flanc opposé 14.According to the illustrated embodiment, the metal reinforcing layer 20 has a portion central 20c which covers the top of the core and a side panel 20a of this layer descends the along one side of the ski, side 14. On the other side, the reinforcing layer stops at the junction between the top of the core and the opposite flank 13. The fiber reinforcement layer 21 has a central portion 21c which covers the top of the core and a side panel 21a descends along on the other side 13 of the ski. The reinforcing layer 21 does not cover the opposite flank 14.

    Ces deux couches rejoignent les carres 9 et 10. Ainsi le ski présente une structure en caisson hybride avec deux couches de renfort superposées sur le dessus et le dessous du noyau, un renfort métallique de liaison le long d'un flanc et un renfort de liaison en fibres sur l'autre.These two layers join edges 9 and 10. Thus the ski has a structure in hybrid box with two layers of reinforcement superimposed on the top and bottom of the core, a metallic connection reinforcement along a sidewall and a fiber connection reinforcement on the other.

    La structure semblable du ski sur le dessus et le dessous du noyau assure une stabilité du cambre du ski. Le pan latéral métallique donne une accroche puissante, le pan latéral en fibres permet de doser l'accrochage du ski sur la neige.The similar structure of the ski on the top and the bottom of the core ensures stability ski camber. The metal side panel gives a strong grip, the side panel in fibers allows you to measure the grip of the ski on the snow.

    Naturellement pour une paire de skis les renforts latéraux sont disposés avec une symétrie de miroir au niveau de leurs pans latéraux. Dans ces conditions, de préférence les pans latéraux métalliques se trouvent sur l'extérieur des skis et les pans en fibres sur l'intérieur. Toutefois ceci n'est pas limitatif et on peut aussi faire l'inverse.Naturally for a pair of skis the side reinforcements are arranged with a mirror symmetry at the level of their side panels. Under these conditions, preferably the metal side panels are on the outside of the skis and the fiber panels on inside. However, this is not limiting and we can also do the opposite.

    La figure 4 est relative à une variante de réalisation. Selon cette variante, au lieu d'être arrêté à la jonction entre le dessus du noyau 26 et un des flancs 33 ou 34 du ski, les couches de renfort 31 et 32 ont des rabats latéraux 31b et 32b qui prolongent la portion centrale 31c, 32c du côté opposé aux pans latéraux 31a, 32a et qui couvrent les flancs du ski sur une partie seulement de leur hauteur. Ce mode de construction facilite le centrage des renforts sur le noyau, en particulier pour un renfort métallique lorsqu'il est mis en forme préalablement.Figure 4 relates to an alternative embodiment. According to this variant, instead of being stopped at the junction between the top of the core 26 and one of the sides 33 or 34 of the ski, the layers reinforcement 31 and 32 have lateral flaps 31b and 32b which extend the central portion 31c, 32c on the side opposite to the side panels 31a, 32a and which cover the sides of the ski on one part only from their height. This construction method makes it easier to center the reinforcements on the core, in particular for a metal reinforcement when it is shaped beforehand.

    En variante, on pourrait avoir un rabat seulement sur une des couches de renfort.Alternatively, one could have a flap only on one of the reinforcing layers.

    Au lieu d'être prolongée par un rabat, la portion centrale 36c, 37c des couches de renfort 36, 37 peut être arrêtée en retrait du bord latéral 35b, 35c du noyau 35 sur leur côté qui n'est pas prolongé par un pan latéral. Ceci est illustré dans la figure 5 pour les couches de renfort 36 et 37. En variante on pourrait avoir un retrait seulement pour une des couches.Instead of being extended by a flap, the central portion 36c, 37c of the layers of reinforcement 36, 37 can be stopped behind the lateral edge 35b, 35c of the core 35 on their side which is not extended by a side panel. This is illustrated in Figure 5 for the layers of reinforcement 36 and 37. Alternatively, one could have a shrinkage only for one of the layers.

    Selon le mode de construction de la figure 6, le noyau 38 est recouvert de deux couches de renfort 40 et 41. La couche 40 a une portion centrale 40c qui s'étend sur la face supérieure du noyau 38 et un pan latéral 40a, 40b qui descend le long de chacun des deux flancs 43 et 44 du ski en direction des carres de façon à former une coque de renfort supérieure.According to the construction method of FIG. 6, the core 38 is covered with two layers reinforcement 40 and 41. The layer 40 has a central portion 40c which extends on the upper face of the core 38 and a side panel 40a, 40b which descends along each of the two sides 43 and 44 ski in the direction of the edges so as to form an upper reinforcement shell.

    L'autre couche de renfort 41 est asymétrique, elle a une portion centrale 41c qui couvre la face supérieure du noyau 38 et un pan 41a qui descend le long d'un seul flanc, le flanc 44.The other reinforcing layer 41 is asymmetrical, it has a central portion 41c which covers the upper face of the core 38 and a face 41a which descends along a single flank, the flank 44.

    Selon le mode de réalisation illustré sur le dessus du noyau la couche de renfort asymétrique est placée au-dessous de la couche symétrique. Ceci n'est pas limitatif et une disposition inverse peut également convenir.According to the embodiment illustrated on the top of the core, the reinforcing layer asymmetric is placed below the symmetrical layer. This is not limiting and a reverse arrangement may also be suitable.

    Dans ces différentes constructions, les couches de renfort peuvent être de même nature, notamment des couches en fibres imprégnées de résine, ou bien elles peuvent être de nature différente, notamment une couche de renfort en fibres et une couche de renfort métallique ou encore deux couches de fibres de nature différente, par exemple de verre, de carbone ou de fibres aramides noyées dans une matrice époxy. On peut utiliser également des couches dont les fibres ont des orientations différentes, par exemple une orientation longitudinale et une orientation transversale, ou encore des orientations obliques par rapport à la direction longitudinale du ski, de part et d'autre de la direction longitudinale définie par le ski, ou encore des couches de densité différente.In these different constructions, the reinforcing layers can be of the same nature, in particular layers of fibers impregnated with resin, or else they may be of a nature different, in particular a fiber reinforcement layer and a metal reinforcement layer or two more layers of fibers of a different nature, for example glass, carbon or aramid fibers embedded in an epoxy matrix. We can also use layers whose the fibers have different orientations, for example a longitudinal orientation and a transverse orientation, or oblique orientations relative to the direction longitudinal of the ski, on either side of the longitudinal direction defined by the ski, or still layers of different density.

    La figure 7 est relative à une autre variante de réalisation de l'invention. Le sous-ensemble de renfort supérieur comprend trois couches de renfort 48, 49 et 50. Sur le dessus du noyau, les portions centrales 48c, 49c, 50c des trois couches de renfort sont superposées avec la couche 49 intercalée entre les couches 48 et 50. Par contre le long des flancs du ski, les couches de renfort sont disposées de façon asymétrique. Dans le mode de réalisation illustré le pan 49a de la couche intermédiaire 49 descend le long d'un des flancs du ski, le flanc 53, et des pans latéraux 48a et 50a des autres couches redescendent le long de l'autre flanc du ski, le flanc 54.Figure 7 relates to another alternative embodiment of the invention. The subset upper reinforcement includes three layers of reinforcement 48, 49 and 50. On top of the core, the central portions 48c, 49c, 50c of the three reinforcing layers are superimposed with layer 49 interposed between layers 48 and 50. On the other hand, along the sides of the ski, the reinforcing layers are arranged asymmetrically. In the embodiment illustrated the pan 49a of the intermediate layer 49 descends along one of the sides of the ski, the flank 53, and side panels 48a and 50a of the other layers descend along the other flank of the ski, flank 54.

    Comme dans les cas précédents les couches 48, 49 et 50 sont de même nature ou de nature différente selon leur matière, leur densité et/ou l'orientation des fibres.As in the previous cases the layers 48, 49 and 50 are of the same nature or of different in nature depending on their material, density and / or the orientation of the fibers.

    Selon la variante d'exécution illustrée en figure 8 le renfort supérieur 68, ou plus généralement le sous-ensemble supérieur, présente un seul pan latéral 68a qui redescend le long d'un des flancs du ski, le flanc 73. Le long de l'autre flanc 74 du ski un élément neutre tel que par exemple un chant 70 en phénol ou en ABS est plaqué contre le noyau 76. De cette façon, le ski présente une structure de type monocoque le long d'un de ses flancs et une structure de type sandwich le long de l'autre flanc.According to the variant illustrated in FIG. 8, the upper reinforcement 68, or more generally the upper sub-assembly, has a single side panel 68a which descends the along one side of the ski, the side 73. Along the other side 74 of the ski a neutral element such as, for example, a phenol or ABS edge 70 is pressed against the core 76. From this way, the ski has a monocoque type structure along one of its sides and a sandwich type structure along the other side.

    Le mode de réalisation de la figure 9 diffère des précédents en ce que deux entretoises 80 et 81 reposent à chant sur les carres 82 et 83. Au lieu de reposer sur les carres, le sous-ensemble supérieur 85 et la couche de décoration 86 reposent sur le sommet des entretoises 80 et 81.The embodiment of Figure 9 differs from the previous ones in that two spacers 80 and 81 rest on edge on edges 82 and 83. Instead of resting on edges, the sub-assembly upper 85 and the decorative layer 86 rest on the top of the spacers 80 and 81.

    Comme dans le cas précédent, le sous-ensemble de renfort supérieur 85 a une structure asymétrique. Selon le mode de réalisation illustré le sous-ensemble 85 comprend deux couches 87 et 88 ayant des pans latéraux 87a, 88a qui redescendent en direction de chacune des entretoises 80, 81. D'autres structures asymétriques pourraient naturellement convenir.As in the previous case, the upper reinforcement sub-assembly 85 has a structure asymmetric. According to the embodiment illustrated, the sub-assembly 85 comprises two layers 87 and 88 having side panels 87a, 88a which descend in the direction of each spacers 80, 81. Other asymmetrical structures could naturally be suitable.

    En variante le ski pourrait avoir une entretoise d'un côté seulement du ski.Alternatively the ski could have a spacer on only one side of the ski.

    Le long de la direction longitudinale du ski, l'asymétrie de la structure du ski peut être homogène ou hétérogène.Along the longitudinal direction of the ski, the asymmetry of the ski structure can be homogeneous or heterogeneous.

    La figure 10 et les figures suivantes représentent en vue de dessus et en développé une couche de renfort supérieure pour différents modes de construction d'un ski. Dans ces figures les traits pointillés figurent la ligne de pliage entre la portion centrale du renfort et son ou ses pans latéraux. Figure 10 and the following figures show a top view and developed a upper reinforcement layer for different methods of building a ski. In these figures the dotted lines represent the fold line between the central portion of the reinforcement and its side panels.

    La figure 10 montre une couche de renfort 90 ayant une portion centrale 90c prolongée sur un bord seulement et sur toute la longueur du renfort par un pan latéral 90a. Le trait pointillé repéré en 92 figure la ligne de pliage de la couche de renfort. Il n'y a pas de pan latéral de l'autre côté de la portion centrale 90a.FIG. 10 shows a reinforcing layer 90 having a central portion 90c extended on one edge only and over the entire length of the reinforcement by a side panel 90a. The line dotted marked in 92 is the fold line of the reinforcing layer. There is no pan lateral on the other side of the central portion 90a.

    La figure 11 illustre une variante de construction. Le renfort 96 a une portion centrale 96c et deux pans latéraux 96a, 96b qui s'étendent sur la partie centrale 93 et la partie arrière 94 du ski. Dans la partie avant l'un des pans latéraux, en l'occurrence le pan 96a, est découpé le long de la ligne de pliage. De ce fait il est discontinu sur la longueur du renfort.Figure 11 illustrates a construction variant. Reinforcement 96 has a central portion 96c and two side panels 96a, 96b which extend over the central part 93 and the rear part 94 of skiing. In the front part one of the side panels, in this case the pan 96a, is cut out along the fold line. Therefore it is discontinuous over the length of the reinforcement.

    Un tel renfort a une structure symétrique dans la partie arrière et la partie centrale, et une structure asymétrique dans la partie avant. Une disposition inversée pourrait également convenir.Such a reinforcement has a symmetrical structure in the rear part and the central part, and an asymmetrical structure in the front part. A reverse layout could also suit.

    Pour le renfort 98 représenté dans la figure 12, l'un des pans latéraux, en l'occurrence le pan 98a est également discontinu. Il est présent seulement dans la partie centrale, l'autre pan 98b est présent sur toute la longueur du renfort.For the reinforcement 98 shown in FIG. 12, one of the side panels, in this case the pan 98a is also discontinuous. It is present only in the central part, the other pan 98b is present over the entire length of the reinforcement.

    La figure 13 montre une autre variante de réalisation d'un pan latéral discontinu avec un renfort 99 dont l'un des pans latéraux, le pan 99a s'étend dans la partie arrière et la partie centrale, et le pan latéral 99b est présent dans la partie centrale et la partie avant.Figure 13 shows another alternative embodiment of a discontinuous side panel with a reinforcement 99 including one of the side panels, the pan 99a extends in the rear part and the part central, and the side panel 99b is present in the central part and the front part.

    Selon la figure 14, le renfort 100 a un pan latéral 100a discontinu qui s'étend sur toute la longueur du renfort excepté dans sa zone centrale. L'autre renfort 100b s'étend sur toute la longueur.According to FIG. 14, the reinforcement 100 has a discontinuous side panel 100a which extends over all the length of the reinforcement except in its central area. The other reinforcement 100b extends over the entire length.

    En figure 15, le pan latéral 101a s'étend dans la partie arrière seulement du renfort, l'autre pan latéral s'étend sur toute la longueur.In FIG. 15, the side panel 101a extends in the rear part only of the reinforcement, the other side panel extends over the entire length.

    Dans la figure 16 le renfort 102 a un pan latéral 102a qui s'étend dans la partie arrière et l'autre pan latéral 102b qui s'étend dans la partie avant du renfort.In FIG. 16, the reinforcement 102 has a side panel 102a which extends in the rear part and the other side panel 102b which extends in the front part of the reinforcement.

    Enfin la figure 17 illustre un autre mode de mise en oeuvre de l'invention avec un renfort 103 dont un pan, en l'occurrence le pan 103a est continu sur la longueur du renfort et l'autre pan, le pan 103b est discontinu et présente des entailles 104 qui sont pratiquées sur une longueur correspondant à la hauteur du chant du ski.Finally, Figure 17 illustrates another embodiment of the invention with a reinforcement 103 including a section, in this case the section 103a is continuous over the length of the reinforcement and the other pan, the pan 103b is discontinuous and has notches 104 which are made on a length corresponding to the height of the edge of the ski.

    D'autres modes de découpage des renforts sont encore possibles.Other modes of cutting the reinforcements are also possible.

    Lorsque le sous-ensemble supérieur est formé de plusieurs couches de renfort superposées, chacune des couches peut être réalisée selon un même mode de découpage, ou selon des modes de découpage différents.When the upper sub-assembly is formed of several reinforcing layers superimposed, each of the layers can be produced according to the same cutting mode, or according to different cutting modes.

    Selon l'invention il est suffisant qu'une des couches de renfort supérieur présente une asymétrie de structure au niveau de ses pans latéraux.According to the invention it is sufficient that one of the upper reinforcing layers has a structural asymmetry at the level of its side panels.

    Naturellement l'invention n'et pas limitée aux modes de réalisation qui ont été décrits, et d'autres variantes sont possibles. En particulier les différents modes de constructions décrits peuvent être combinés entre eux. Naturally, the invention is not limited to the embodiments which have been described, and other variations are possible. In particular the different construction methods described can be combined with each other.

    Egalement, au lieu de couvrir toute la longueur du ski, les couches de renfort supérieur, ou une partie d'entre elles, pourraient ne couvrir qu'une partie de celle-ci.Also, instead of covering the entire length of the ski, the upper reinforcement layers, or part of them, may only cover part of it.

    Claims (10)

    Ski présentant une surface supérieure (11), une surface de glisse (8) et deux flancs latéraux (13, 14, 43, 44, 53, 54, 73, 74) comprenant un noyau central (6, 38, 76), un sous-ensemble de renfort inférieur (15) situé sous le noyau et reposant sur une semelle de glisse (16) qui est bordée par deux carres latérales (9, 10), et un sous-ensemble de renfort supérieur (19) situé sur le dessus du noyau, et recouvert par une couche de décoration (23), chacun des sous-ensembles de renfort comprenant une ou plusieurs couches, l'une au moins des couches de renfort supérieur (20, 21, 31, 32, 36, 37, 40, 41, 48, 49, 50, 68, 87, 88, 90, 96, 98, 99, 100, 101, 102, 103) ayant une portion centrale (20c, 21c, 31c, 32c, 36c, 37c, 48c, 49c, 50c, 90c, 96c, 98c, 99c, 100c, 101c, 102c, 103c) recouvrant le dessus du noyau et au moins un pan latéral (20a, 21a, 40a, 40b, 41a, 48a, 49a, 50a, 68a, 87a, 88a, 90a, 90b, 96a, 96b, 98a, 98b, 100a, 100b, 101a, 101b, 102a, 102b, 103a, 103b) redescendant en direction d'une carre, caractérisé par le fait qu'au moins une des couches de renfort (20, 21, 31, 32, 36, 37, 40, 41, 48, 49, 50, 68, 86, 87, 90, 96, 98, 99, 100, 101, 102, 103) du sous-ensemble de renfort supérieur a une structure asymétrique au niveau de ses pans latéraux le long d'au moins une partie de sa longueur.Ski having an upper surface (11), a sliding surface (8) and two lateral flanks (13, 14, 43, 44, 53, 54, 73, 74) comprising a central core (6, 38, 76), a lower reinforcement sub-assembly (15) located under the core and resting on a gliding sole (16) which is bordered by two lateral edges (9, 10), and an upper reinforcement sub-assembly (19) located on the above the core, and covered by a decorative layer (23), each of the reinforcement sub-assemblies comprising one or more layers, at least one of the upper reinforcement layers (20, 21, 31, 32, 36, 37 , 40, 41, 48, 49, 50, 68, 87, 88, 90, 96, 98, 99, 100, 101, 102, 103) having a central portion (20c, 21c, 31c, 32c, 36c, 37c, 48c, 49c, 50c, 90c, 96c, 98c, 99c, 100c, 101c, 102c, 103c) covering the top of the core and at least one side panel (20a, 21a, 40a, 40b, 41a, 48a, 49a, 50a, 68a, 87a, 88a, 90a, 90b, 96a, 96b, 98a, 98b, 100a, 100b, 101a, 101b, 102a, 102b, 103a, 103b) descending in d irection of an edge, characterized in that at least one of the reinforcing layers (20, 21, 31, 32, 36, 37, 40, 41, 48, 49, 50, 68, 86, 87, 90, 96, 98, 99, 100, 101, 102, 103) of the upper reinforcement sub-assembly has an asymmetrical structure at the level of its lateral sides along at least part of its length. Ski selon la revendication 1, caractérisé par le fait que le sous-ensemble de renfort supérieur comprend au moins une couche supérieure de renfort (20, 21, 31, 32, 36, 37, 41, 48, 49, 50, 68, 87, 88) ayant une portion centrale (20c, 21c, 31c, 32c, 36c, 37c, 41c, 48c, 49c, 50c, 68c, 87c, 88c) et un pan latéral (20a, 21a, 41a, 48a, 49a, 50a, 68a, 87a, 88a) d'un seul côté de la portion centrale sur au moins une partie de la longueur du ski.Ski according to claim 1, characterized in that the upper reinforcement sub-assembly comprises at least one upper reinforcement layer (20, 21, 31, 32, 36, 37, 41, 48, 49, 50, 68, 87 , 88) having a central portion (20c, 21c, 31c, 32c, 36c, 37c, 41c, 48c, 49c, 50c, 68c, 87c, 88c) and a side panel (20a, 21a, 41a, 48a, 49a, 50a , 68a, 87a, 88a) on one side of the central portion over at least part of the length of the ski. Ski selon la revendication 2, caractérisé par le fait que le sous-ensemble de renfort supérieur comprend au moins deux couches de renfort supérieur (20, 21, 31, 32, 36, 37, 48, 49, 50, 87, 88) ayant des portions centrales superposées (20c, 21c, 31c, 32c, 36c, 37c, 48c, 49c, 50c, 87c, 88c) et ayant chacune un seul pan latéral (20a, 21a, 31a, 32a, 36a, 37a, 48a, 49a, 50a, 87a, 88a), les pans latéraux desdites couches redescendant le long des deux flancs du ski en direction des carres, sur au moins une partie de la longueur du ski.Ski according to claim 2, characterized in that the upper reinforcement sub-assembly comprises at least two upper reinforcement layers (20, 21, 31, 32, 36, 37, 48, 49, 50, 87, 88) having superimposed central portions (20c, 21c, 31c, 32c, 36c, 37c, 48c, 49c, 50c, 87c, 88c) and each having a single side panel (20a, 21a, 31a, 32a, 36a, 37a, 48a, 49a , 50a, 87a, 88a), the side panels of said layers descending along the two sides of the ski in the direction of the edges, over at least part of the length of the ski. Ski selon la revendication 2, caractérisé par le fait que le sous-ensemble de renfort supérieur comprend au moins une couche de renfort supérieur (41) ayant une portion centrale (41 c) et un seul pan latéral (41 a) et une couche de renfort supérieur (40) ayant une portion centrale (41 c) et deux pans latéraux (41 a, 41 b) redescendant le long des deux flancs latéraux du ski.Ski according to claim 2, characterized in that the upper reinforcement sub-assembly comprises at least one upper reinforcement layer (41) having a central portion (41 c) and a single side panel (41 a) and a layer of upper reinforcement (40) having a central portion (41 c) and two side panels (41 a, 41 b) descending along the two lateral sides of the ski. Ski selon la revendication 3, caractérisé par le fait que les couches de renfort sont de même nature.Ski according to claim 3, characterized in that the reinforcing layers are of the same nature. Ski selon la revendication 3, caractérisé par le fait que les couches de renfort sont de nature différente. Ski according to claim 3, characterized in that the reinforcing layers are of a different nature. Ski selon la revendication 1, caractérisé par le fait qu'au moins sur une partie de sa longueur un seul (73) de ses flancs (73, 74) est couvert par un pan latéral (68a) issu d'une couche supérieure de renfort (68).Ski according to claim 1, characterized in that at least over part of its length, only one (73) of its flanks (73, 74) is covered by a side panel (68a) coming from an upper reinforcement layer (68). Ski selon la revendication 1, caractérisé par le fait que la portion centrale (31c, 32c) d'au moins une couche de renfort supérieure (31, 32) est prolongée par un rabat (31b, 32b) situé du côté opposé à un pan latéral (31a, 32a).Ski according to claim 1, characterized in that the central portion (31c, 32c) of at least one upper reinforcing layer (31, 32) is extended by a flap (31b, 32b) located on the side opposite a side lateral (31a, 32a). Ski selon la revendication 1, caractérisé par le fait que la portion centrale (36c, 37c) d'au moins une couche supérieure de renfort (36, 37) est arrêtée en retrait du bord latéral du noyau du côté opposé à son pan latéral.Ski according to claim 1, characterized in that the central portion (36c, 37c) of at least one upper reinforcement layer (36, 37) is stopped back from the lateral edge of the core on the side opposite to its side panel. Ski selon la revendication 1, caractérisé par le fait que la couche de renfort (90, 96, 98, 99, 100, 101, 102, 103) a au moins un pan latéral (100a, 101a, 102a, 102b, 103b) discontinu sur la longueur du ski.Ski according to claim 1, characterized in that the reinforcing layer (90, 96, 98, 99, 100, 101, 102, 103) has at least one side panel (100a, 101a, 102a, 102b, 103b) discontinuous on the length of the ski.
    EP04012896A 2003-06-02 2004-06-01 Ski for alpine skiing Not-in-force EP1484091B1 (en)

    Priority Applications (1)

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    SI200430785T SI1484091T1 (en) 2003-06-02 2004-06-01 Ski for alpine skiing

    Applications Claiming Priority (2)

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    FR0306615 2003-06-02
    FR0306615A FR2855427B1 (en) 2003-06-02 2003-06-02 SKIING PROVIDED FOR THE PRACTICE OF ALPINE SKIING

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    EP1484091B1 EP1484091B1 (en) 2008-04-23

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    EP (1) EP1484091B1 (en)
    AT (1) ATE392929T1 (en)
    DE (1) DE602004013218T2 (en)
    ES (1) ES2305614T3 (en)
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    SI (1) SI1484091T1 (en)

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    EP3354325A1 (en) * 2016-12-29 2018-08-01 Völkl Sports GmbH & Co. KG Bottom reinforcement layer with clip effect

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    EP1693089B1 (en) 2005-02-16 2009-01-07 Skis Rossignol Slide board
    FR2881962B1 (en) 2005-02-16 2007-03-23 Skis Rossignol Sa Sa BOARD OF SLIDERS
    FR2892340B1 (en) * 2005-10-24 2008-02-22 Salomon Sa IMPROVED SANDWICH LAMINATE STRUCTURE
    FR2912066B1 (en) * 2007-02-02 2009-05-01 Salomon Sa SLIDING GEAR
    SI23531B (en) 2010-11-15 2019-06-28 Elan, D.O.O. Ski with asymmetric characteristics
    US9138629B2 (en) * 2013-03-15 2015-09-22 Brian Rosenberger Rib-stiffened sports board

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    US8262123B2 (en) 2006-08-10 2012-09-11 Armada Skis, Inc. Snow riding implement
    EP3354325A1 (en) * 2016-12-29 2018-08-01 Völkl Sports GmbH & Co. KG Bottom reinforcement layer with clip effect
    US10780339B2 (en) 2016-12-29 2020-09-22 Völkl Sports GmbH & Co. KG Lower flange having a bracketing effect

    Also Published As

    Publication number Publication date
    EP1484091B1 (en) 2008-04-23
    DE602004013218T2 (en) 2009-05-14
    ATE392929T1 (en) 2008-05-15
    DE602004013218D1 (en) 2008-06-05
    FR2855427A1 (en) 2004-12-03
    ES2305614T3 (en) 2008-11-01
    US7073811B2 (en) 2006-07-11
    SI1484091T1 (en) 2008-10-31
    FR2855427B1 (en) 2005-08-26
    US20050161908A1 (en) 2005-07-28

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