EP0498963B1 - Alpine ski for gliding in snow and ice - Google Patents

Alpine ski for gliding in snow and ice Download PDF

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Publication number
EP0498963B1
EP0498963B1 EP91122065A EP91122065A EP0498963B1 EP 0498963 B1 EP0498963 B1 EP 0498963B1 EP 91122065 A EP91122065 A EP 91122065A EP 91122065 A EP91122065 A EP 91122065A EP 0498963 B1 EP0498963 B1 EP 0498963B1
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EP
European Patent Office
Prior art keywords
ski
membrane
assembly
ski according
sub
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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EP91122065A
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German (de)
French (fr)
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EP0498963A1 (en
Inventor
Jacques Le Masson
Dominique Vuarier
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Salomon SAS
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Salomon SAS
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/12—Making thereof; Selection of particular materials
    • A63C5/124—Selection of particular materials for the upper ski surface
    • 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

Definitions

  • the invention relates to a ski used in winter sports and intended to slide on snow and ice.
  • the current structure of skis generally comprises two distinct subsets having their own function.
  • a first so-called “mechanical” sub-assembly brings together the elements giving the ski its sliding, stiffness, grip, resistance properties, and a second protection and decoration sub-assembly is intended to cover and protect at least partially the first.
  • this second subassembly most often consists of layers resistant to deformation and abrasion, suitable for decoration in rigid plastic material such as ABS (Acrylonitril Butadiene Styrene) or polyamide or still made of metal such as aluminum for example.
  • rigid plastic material such as ABS (Acrylonitril Butadiene Styrene) or polyamide or still made of metal such as aluminum for example.
  • the patent FR 2.589.073 has provided for making around a mechanical assembly of a ski, a hard plastic shell of polyurethane in the form of U applied by projection, molding or RIM (Reaction Injection Molding).
  • This construction allows the production of skis of different complex shapes while retaining a single mechanical sub-assembly with studied and advantageous properties. Nevertheless, the possibilities of decoration of such a subset remain limited.
  • overly aggressive edge strokes can seriously damage this covering layer. And the resistance to aging of this covering is not optimal.
  • the object of the present invention is to provide a ski overcoming the aforementioned drawbacks, in particular that the construction of the ski is such that it allows the realization of complex shapes without weighing down the ski, nor modifying its mechanical properties, as the under- together, upper is easily decorable and by different methods, it is resistant to knocks and other attacks during use, and moreover that the methods of manufacturing such a ski are numerous, generally easy to implement. work and economic.
  • Figure 1 is a cross-sectional view along line B-B 'of Figure 2 of a ski according to the present invention.
  • FIG. 2 is a top view of an example of a ski in FIG. 1.
  • FIG. 3 is a view in longitudinal section along A-A 'of the ski of FIG. 2.
  • FIG. 4 is a cross-sectional view along C-C ′ of the ski of FIG. 2.
  • Figure 5 is a cross-sectional view of a ski according to another embodiment.
  • Figure 6 is a top view of a ski according to another embodiment.
  • FIG. 7 is a cross-sectional view along D-D ′ of the ski of FIG. 6.
  • Figures 8 and 9 show different steps of a set of manufacturing process of a ski according to the invention.
  • Figures 10 to 12 show the different steps of another example of a ski manufacturing method according to the invention.
  • the ski (1) of the present invention is constituted, as shown in FIG. 1, by a mechanical lower assembly (2) which comprises a sliding sole (20) generally made of polyethylene, PTFE or the like.
  • the lower sub-assembly (2) also comprises a stack of mechanical elements including one (or more) lower reinforcement (s) (23) covering the sole, a central core (22), and an upper reinforcement (24 ). At least part of the lower reinforcement (23) extends laterally, covering, at least in part, the edges (21).
  • the reinforcements (23, 24) generally consist of one or more layers of composite materials of glass fibers, carbon or other, impregnated with a thermosetting resin material such as epoxy or polyester. They can also be metallic aluminum or aluminum alloy of the zycral® type for example.
  • the core (22) can be filled or unloaded foam, wood, aluminum honeycomb for example.
  • the different sub-elements of the mechanical upper assembly (2) are assembled together by any means, bonding, welding or other.
  • the bonding interface between each of the elements can be produced by bonding films for example (not shown).
  • the upper covering sub-assembly (3) is intended to protect the mechanical sub-assembly (2) and comprises a flexible and thin outer membrane (30) covering from one edge to the other said mechanical assembly (2) .
  • This membrane may be a textile material, or a film or sheet of flexible plastic material.
  • this sheath is chosen from 0.1 to 0.5 mm, so as to resist edges and abrasion, while retaining total flexibility.
  • the membrane (30) preferably extends over the entire length of the ski, from the tip (10) to the rear end (11) of the ski, as shown in Figure 2. Between the membrane (30) and the mechanical lower sub-assembly (2), interposed a filling material (31) of deformable and elastic plastic foam.
  • This material can extend in interface over all or part of the ski in a continuous or discontinuous manner, thus serving as a "buffer” in particular in the parts of the ski most exposed to shocks and external aggressions.
  • Figures 2 to 4 show a ski whose membrane (30) is adjacent to the upper reinforcement (24) in the region (4) where is intended to adapt the bindings (5).
  • the filling material (31) is interposed only between the lateral faces (220, 221) of the core (22) and the membrane (30).
  • the thickness of the filling material can be variable or constant, longitudinally and / or laterally along the body of the ski (1) giving the ski its own external shape.
  • Its density is between 0.2 and 0.4.
  • a material is chosen from the family of polyethers or polyurethanes.
  • FIG. 5 illustrates another example of a ski according to the invention in which the filling material extends beyond the reinforcement to fill a cavity (223) formed on all or part of the ski in the core (22) through holes (240) of the upper reinforcement (24).
  • This embodiment has the advantage of improving adhesion by mechanical attachment of the upper covering sub-assembly (3) with the lower mechanical sub-assembly (2).
  • Figures 6 and 7 show another example of a ski according to the invention where the upper covering sub-assembly (3) consists of a rigid outer shell (32) covering the ski over its entire length and extending laterally from one edge (21) to the other.
  • This shell (32) is locally provided with openings at the places most exposed to external aggressions, in particular at the level of the upper edges, in front and behind the region of the fixing (4).
  • Each localized opening is covered with a membrane (30) whose edges adhere to the internal faces of the shell (32).
  • the filling material (31) of deformable and elastic plastic foam fills the openings and is interposed between the membrane (30) and the upper reinforcement (24).
  • the outer shell (32) can be monolayer or multilayer. It can be metallic, for example aluminum, or made of reinforced or non-reinforced plastic materials.
  • the adhesiveness between the materials of the upper sub-assembly (3) and those of the lower sub-assembly (2) may, in certain cases, and depending on their nature, be incompatible with production, and an additional interface may be provided (not shown) in the form of a layer of adhesive or of films or solid bonding sheet for example.
  • Figures 8 and 9 illustrate an example of a method for manufacturing the ski according to the invention.
  • a first step consists in placing in the part (60) of the mold (6) whose imprint determines the shape of the top of the ski, the membrane (30).
  • a second step is to assemble the different elements of the lower mechanical assembly (2), to secure it to the second part (61) of the mold (6), then to arrange this assembly so as to cover the first part (60) of the mold, a space being provided in the places desired, between the membrane (30) and the mechanical sub-assembly (2).
  • the space is filled, in a third step, by injection of the filling material (31).
  • This injection step can be carried out according to the RIM (Reaction Injection Molding) process well known to those skilled in the art, when the nature of the materials used for the foam allows.
  • a final step consists of removing the ski thus produced from the mold and cutting out any burrs of the membrane produced on the ski, at the level of the joint plane of the mold (6).
  • FIGS. 10 to 12 Another exemplary embodiment of the method of the invention is illustrated in FIGS. 10 to 12.
  • the upper covering sub-assembly (3) and the mechanical lower sub-assembly (2) separately, then assembling by gluing or any other means.
  • the upper covering sub-assembly is mounted in its desired shape as shown in FIGS. 10 and 11.
  • the membrane (30) is arranged on one of the parts of the mold (6), the other being intended to define the complementary shape of the lower mechanical sub-assembly (2).
  • the space (7) produced by the two parts of the mold thus assembled is filled by injection of the foam (31), using the RIM process for example.
  • the two sub-assemblies (2) and (3) are assembled and secured by any means such as bonding, welding or the like.
  • this method does not allow the manufacture of a ski according to the particular mode of Figure 5; for such an embodiment, the method described above is preferred, for example.
  • the membrane by its nature can be indifferently decorated before or after carrying out the processes described. This has a definite advantage compared to conventional skis where the covering layer can only be decorated during the final stage of carrying out the process.

Abstract

The invention relates to a ski composed of a lower subassembly (2) of mechanical strength and of an upper covering subassembly (3). <??>The lower subassembly (2) comprises, inter alia,   - an outer gliding running sole (20),   - metal side edges (21),   - a core (22),   - at least one lower reinforcement element (23),   - at least one upper reinforcement element (24). <??>The upper subassembly (3) comprises at least one outer membrane (30) which is flexible and thin, and a filling material (31) of deformable and elastic plastic foam interposed over at least a part of the length of the ski between the said membrane (30) and the upper reinforcement element (24). <IMAGE>

Description

L'invention concerne un ski utilisé en sport d'hivers et destiné à glisser sur la neige et la glace.The invention relates to a ski used in winter sports and intended to slide on snow and ice.

La structure actuelle des skis comprend généralement deux sous-ensembles distincts ayant leur propre fonction.The current structure of skis generally comprises two distinct subsets having their own function.

Un premier sous-ensemble dit "mécanique" rassemble les éléments conférant au ski ses propriétés de glisse, de raideur, d'accroche, de résistance, et un second sous-ensemble de protection et de décoration est destiné à recouvrir et protéger au moins partiellement le premier.A first so-called "mechanical" sub-assembly brings together the elements giving the ski its sliding, stiffness, grip, resistance properties, and a second protection and decoration sub-assembly is intended to cover and protect at least partially the first.

L'art antérieur révèle que ce second sous-ensemble est constitué le plus souvent des couches résistantes à la déformation et à l'abrasion, apte à la décoration en matière plastique rigide telle que l'ABS (Acrylonitril Butadiène Styrène) ou le polyamide ou encore en métal tel que l'aluminium par exemple.The prior art reveals that this second subassembly most often consists of layers resistant to deformation and abrasion, suitable for decoration in rigid plastic material such as ABS (Acrylonitril Butadiene Styrene) or polyamide or still made of metal such as aluminum for example.

Néanmoins, l'emploi de ces matériaux ne permet pas de réaliser des formes particulières sur le dessus du ski sauf à alourdir l'ensemble ou modifier les caractéristiques mécaniques du ski, de raideur par exemple, ce qui n'est pas toujours souhaitable.However, the use of these materials does not make it possible to produce particular shapes on the top of the ski, except to weigh down the whole or modify the mechanical characteristics of the ski, of stiffness for example, which is not always desirable.

Le brevet FR 2.589.073 a prévu de réaliser autour d'un ensemble mécanique d'un ski, une coque de matière plastique dure de polyuréthane en forme de U appliquée par projection, moulage ou RIM (Réaction Injection Moulage). Cette construction autorise la réalisation de skis de formes complexes différentes tout en conservant un seul et même sous-ensemble mécanique aux propriétés étudiées et avantageuses. Néanmoins les possibilités de décoration d'un tel sous-ensemble restent limitées. De plus, des coups de carres trop agressifs peuvent endommager gravement cette couche de recouvrement. Et la tenue au vieillissement de ce recouvrement n'est pas optimale.The patent FR 2.589.073 has provided for making around a mechanical assembly of a ski, a hard plastic shell of polyurethane in the form of U applied by projection, molding or RIM (Reaction Injection Molding). This construction allows the production of skis of different complex shapes while retaining a single mechanical sub-assembly with studied and advantageous properties. Nevertheless, the possibilities of decoration of such a subset remain limited. In addition, overly aggressive edge strokes can seriously damage this covering layer. And the resistance to aging of this covering is not optimal.

L'objet de la présente invention vise à proposer un ski remédiant aux inconvénients précités, en particulier que la construction du ski soit telle qu'elle permette la réalisation de formes complexes sans alourdir le ski, ni modifier ses propriétés mécaniques, que le sous-ensemble, supérieur soit facilement décorable et par différents procédés, qu'il soit résistant aux coups de carres et autres agressions lors de l'utilisation, et de plus que les procédés de fabrication d'un tel ski soient nombreux, généralement faciles à mettre en oeuvre et économiques.The object of the present invention is to provide a ski overcoming the aforementioned drawbacks, in particular that the construction of the ski is such that it allows the realization of complex shapes without weighing down the ski, nor modifying its mechanical properties, as the under- together, upper is easily decorable and by different methods, it is resistant to knocks and other attacks during use, and moreover that the methods of manufacturing such a ski are numerous, generally easy to implement. work and economic.

Pour cela le ski objet de l'invention telle qu'elle est caratérisée dans la revendication 1 est constitué d'un sous-ensemble inférieur de résistance mécanique et d'un sous-ensemble supérieur de recouvrement ; ledit sous-ensemble inférieur de résistance comprenant, en autre,

  • une semelle externe de glissement,
  • des carres métalliques latérales,
  • un noyau,
  • au moins un élément de renfort supérieur,
  • au moins un élément de renfort inférieur,
   et se caractérise par le fait que le sous-ensemble supérieur de recouvrement comprend sur une partie au moins de la longuer du ski une membrane externe souple et de fine épaisseur, et un matériau de remplissage de mousse plastique déformable et élastique s'interposant entre ladite membrane et l'élément de renfort supérieur.For this the object of the invention ski as it is characterized in claim 1 consists of a lower subset of mechanical strength and an upper covering sub-assembly; said lower resistance sub-assembly comprising, in addition,
  • a slip outsole,
  • lateral metal edges,
  • a core,
  • at least one upper reinforcing element,
  • at least one lower reinforcing element,
and is characterized by the fact that the upper covering sub-assembly comprises on at least part of the length of the ski a flexible and thin external membrane, and a deformable and elastic plastic foam filling material interposed between said membrane and upper reinforcement element.

D'autres objets caractéristiques et avantages de la présente invention ressortiront plus clairement de la description de modes de réalisation de l'invention, donnés ci-dessous à titre non-limitatif, en référence aux dessins annexés.Other characteristic objects and advantages of the present invention will emerge more clearly from the description of embodiments of the invention, given below without implied limitation, with reference to the accompanying drawings.

La figure 1 est une vue en coupe transversale suivant B-B' de la figure 2 d'un ski de selon la présente invention.Figure 1 is a cross-sectional view along line B-B 'of Figure 2 of a ski according to the present invention.

La figure 2 est une vue de dessus d'un exemple de ski de la figure 1.FIG. 2 is a top view of an example of a ski in FIG. 1.

La figure 3 est une vue en coupe longitudinal suivant A-A' du ski de la figure 2.FIG. 3 is a view in longitudinal section along A-A 'of the ski of FIG. 2.

La figure 4 est une vue en coupe transversale suivant C-C' du ski de la figure 2.FIG. 4 is a cross-sectional view along C-C ′ of the ski of FIG. 2.

La Figure 5 est une vue en coupe transversale d'un ski selon un autre mode de réalisation.Figure 5 is a cross-sectional view of a ski according to another embodiment.

La figure 6 est une vue de dessus d'un ski selon un autre mode de réalisation.Figure 6 is a top view of a ski according to another embodiment.

La figure 7 est une vue en coupe transversale suivant D-D' du ski de la figure 6.FIG. 7 is a cross-sectional view along D-D ′ of the ski of FIG. 6.

Les figures 8 et 9 représentent différentes étapes d'un ensemble de procédé de fabrication d'un ski selon l'invention.Figures 8 and 9 show different steps of a set of manufacturing process of a ski according to the invention.

Les figures 10 à 12 représentent les différentes étapes d'un autre exemple de procédé de fabrication de ski selon l'invention.Figures 10 to 12 show the different steps of another example of a ski manufacturing method according to the invention.

Le ski (1) de la présente invention est constitué, comme le montre la figure 1, par un ensemble inférieur mécanique (2) qui comprend une semelle de glissement (20) généralement en polyéthylène, PTFE ou autre.The ski (1) of the present invention is constituted, as shown in FIG. 1, by a mechanical lower assembly (2) which comprises a sliding sole (20) generally made of polyethylene, PTFE or the like.

Des carres latérales métalliques (21) sont disposées de part et d'autre de la semelle (20) conférant une bonne accroche du ski dans les virages, dans toute les conditions de neige ou de glace. Le sous-ensemble inférieur (2) comprend également un empilage d'éléments mécaniques dont un (ou plusieurs) renfort(s) inférieur(s) (23) recouvrant la semelle, un noyau central (22), et un renfort supérieur (24). Une partie au moins du renfort inférieur (23) s'étend latéralement en recouvrant, en partie au moins, les carres (21).Metal lateral edges (21) are arranged on either side of the sole (20) giving good grip of the ski when cornering, in all snow or ice conditions. The lower sub-assembly (2) also comprises a stack of mechanical elements including one (or more) lower reinforcement (s) (23) covering the sole, a central core (22), and an upper reinforcement (24 ). At least part of the lower reinforcement (23) extends laterally, covering, at least in part, the edges (21).

Les renforts (23, 24) sont généralement constitués d'une ou plusieurs couches de matériaux composites de fibres de verres, carbone ou autre, imprégnées d'une matière de résine thermodurcissable comme de l'époxyde ou polyester. Ils peuvent également être métalliques en aluminium ou alliage d'aluminium du type zycral ® par exemple.The reinforcements (23, 24) generally consist of one or more layers of composite materials of glass fibers, carbon or other, impregnated with a thermosetting resin material such as epoxy or polyester. They can also be metallic aluminum or aluminum alloy of the zycral® type for example.

Le noyau (22) peut être de la mousse chargée ou non, du bois, du nid d'abeille en aluminium par exemple.The core (22) can be filled or unloaded foam, wood, aluminum honeycomb for example.

Les différents sous-éléments de l'ensemble supérieur mécanique (2) sont assemblés entre eux par tout moyen, collage, soudage ou autre.The different sub-elements of the mechanical upper assembly (2) are assembled together by any means, bonding, welding or other.

L'interface de collage entre chacun des éléments peut être réalisée par des films de collage par exemple (non représentés).The bonding interface between each of the elements can be produced by bonding films for example (not shown).

Le sous-ensemble supérieur de recouvrement (3) est destiné à protéger le sous-ensemble mécanique (2) et comprend une membrane externe souple et de fine épaisseur (30) recouvrant d'une carre à l'autre ledit ensemble mécanique (2). Cette membrane peut être un matériau textile, ou un film ou feuille de matière plastique souple.The upper covering sub-assembly (3) is intended to protect the mechanical sub-assembly (2) and comprises a flexible and thin outer membrane (30) covering from one edge to the other said mechanical assembly (2) . This membrane may be a textile material, or a film or sheet of flexible plastic material.

L'épaisseur de cette gaine est choisie de 0,1 à 0,5 mm, de façon à résister aux coups de carres et à l'abrasion, tout en conservant une souplesse totale.The thickness of this sheath is chosen from 0.1 to 0.5 mm, so as to resist edges and abrasion, while retaining total flexibility.

La membrane (30) s'étend, de préférence, sur l'ensemble de la longueur du ski, de la spatule (10) jusqu'à l'extrémité arrière (11) du ski, comme le montre la figure 2. Entre la membrane (30) et le sous-ensemble inférieur mécanique (2), s'interpose une matière de remplissage (31) de mousse plastique déformable et élastique.The membrane (30) preferably extends over the entire length of the ski, from the tip (10) to the rear end (11) of the ski, as shown in Figure 2. Between the membrane (30) and the mechanical lower sub-assembly (2), interposed a filling material (31) of deformable and elastic plastic foam.

Cette matière peut s'étendre en interface sur tout ou partie du ski de façon continue ou discontinue, servant ainsi de "tampon" en particulier dans les parties du ski les plus exposées aux chocs et agressions extérieures.This material can extend in interface over all or part of the ski in a continuous or discontinuous manner, thus serving as a "buffer" in particular in the parts of the ski most exposed to shocks and external aggressions.

A titre d'exemple, les figures 2 à 4 montrent un ski dont la membrane (30) est adjacente au renfort supérieur (24) dans la région (4) où est destinée à s'adapter les fixations (5).For example, Figures 2 to 4 show a ski whose membrane (30) is adjacent to the upper reinforcement (24) in the region (4) where is intended to adapt the bindings (5).

Dans cette région (4), au niveau des chants, le matériau de remplissage (31) n'est interposé qu'entre les faces latérales (220, 221) du noyau (22) et la membrane (30).In this region (4), at the edges, the filling material (31) is interposed only between the lateral faces (220, 221) of the core (22) and the membrane (30).

L'épaisseur du matériau de remplissage peut être variable ou constante, longitudinalement et/ou latéralement le long du corps du ski (1) conférant au ski sa forme extérieure propre.The thickness of the filling material can be variable or constant, longitudinally and / or laterally along the body of the ski (1) giving the ski its own external shape.

Sa densité est comprise entre 0,2 et 0,4. A titre d'exemple, un tel matériau est choisi parmi la famille des polyéthers ou polyuréthanes.Its density is between 0.2 and 0.4. By way of example, such a material is chosen from the family of polyethers or polyurethanes.

La figure 5 illustre un autre exemple de ski selon l'invention où le matériau de remplissage s'étend au delà du renfort pour venir remplir une cavité (223) ménagée sur tout ou partie du ski dans le noyau (22) à travers des trous (240) du renfort supérieur (24). Ce mode de réalisation présente l'avantage d'améliorer l'adhésion par accrochage mécanique du sous-ensemble supérieur de recouvrement (3) avec le sous-ensemble inférieur mécanique (2).FIG. 5 illustrates another example of a ski according to the invention in which the filling material extends beyond the reinforcement to fill a cavity (223) formed on all or part of the ski in the core (22) through holes (240) of the upper reinforcement (24). This embodiment has the advantage of improving adhesion by mechanical attachment of the upper covering sub-assembly (3) with the lower mechanical sub-assembly (2).

Les figures 6 et 7 montrent un autre exemple de ski selon l'invention où le sous-ensemble supérieur de recouvrement (3) est constitué d'une coque externe rigide (32) recouvrant le ski sur toute sa longueur et s étendant latéralement d'une carre (21) à l'autre. Cette coque (32) est munie localement d'ouvertures aux endroits les plus exposés aux agressions extérieures, notamment au niveau des arètes supérieures, en avant et en arrière de la région de la fixation (4). Chaque ouverture localisée est recouverte d'une membrane (30) dont les bords adhèrent aux faces internes de la coque (32). Le matériau de remplissage (31) de mousse plastique déformable et élastique remplit les ouvertures et s interpose entre la membrane (30) et le renfort supérieur (24). La coque externe (32) peut être monocouche ou multicouche. Elle peut être métallique, en aluminium par exemple, ou constituée de matériaux plastiques renforcés ou non.Figures 6 and 7 show another example of a ski according to the invention where the upper covering sub-assembly (3) consists of a rigid outer shell (32) covering the ski over its entire length and extending laterally from one edge (21) to the other. This shell (32) is locally provided with openings at the places most exposed to external aggressions, in particular at the level of the upper edges, in front and behind the region of the fixing (4). Each localized opening is covered with a membrane (30) whose edges adhere to the internal faces of the shell (32). The filling material (31) of deformable and elastic plastic foam fills the openings and is interposed between the membrane (30) and the upper reinforcement (24). The outer shell (32) can be monolayer or multilayer. It can be metallic, for example aluminum, or made of reinforced or non-reinforced plastic materials.

L'adhésivité entre les matériaux du sous-ensemble supérieur (3) et ceux du sous-ensemble inférieur (2) peuvent, dans certain cas, et selon leur nature, être incompatible à réaliser, et l'on peut prévoir une interface supplémentaire (non représentée) sous forme de couche de colle ou de films ou feuille solide de collage par exemple.The adhesiveness between the materials of the upper sub-assembly (3) and those of the lower sub-assembly (2) may, in certain cases, and depending on their nature, be incompatible with production, and an additional interface may be provided ( not shown) in the form of a layer of adhesive or of films or solid bonding sheet for example.

Les figures 8 et 9 illustrent un exemple de procédé permettant la fabrication du ski selon l'invention.Figures 8 and 9 illustrate an example of a method for manufacturing the ski according to the invention.

Une première étape consiste à disposer dans la partie (60) du moule (6) dont l'empreinte détermine la forme du dessus du ski, la membrane (30). Une seconde étape consiste à assembler les différents éléments de l'ensemble inférieur mécanique (2), à le solidariser à la seconde partie (61) du moule (6), puis à disposer cet ensemble de façon à recouvrir la première partie (60) du moule, un espace étant ménagé, aux endroits voulus, entre la membrane (30) et le sous-ensemble mécanique (2). L'espace est rempli, lors d'une troisième étape, par injection de la matière de remplissage (31).A first step consists in placing in the part (60) of the mold (6) whose imprint determines the shape of the top of the ski, the membrane (30). A second step is to assemble the different elements of the lower mechanical assembly (2), to secure it to the second part (61) of the mold (6), then to arrange this assembly so as to cover the first part (60) of the mold, a space being provided in the places desired, between the membrane (30) and the mechanical sub-assembly (2). The space is filled, in a third step, by injection of the filling material (31).

Cette étape d'injection peut être effectuée selon le procédé RIM (Réaction Injection Moulage) bien connu de l'homme de l'art, lorsque que la nature des matériaux utilisés pour la mousse le permet. Une dernière étape consiste à démouler le ski ainsi réalisé et à découper les bavures éventuelles de la membrane réalisées sur le ski, au niveau du plan de joint du moule (6).This injection step can be carried out according to the RIM (Reaction Injection Molding) process well known to those skilled in the art, when the nature of the materials used for the foam allows. A final step consists of removing the ski thus produced from the mold and cutting out any burrs of the membrane produced on the ski, at the level of the joint plane of the mold (6).

Un autre exemple de réalisation du procédé de l'invention est illustré dans les figures 10 à 12.Another exemplary embodiment of the method of the invention is illustrated in FIGS. 10 to 12.

Il consiste à réaliser séparément le sous-ensemble supérieur de recouvrement (3) et le sous-ensemble inférieur mécanique (2), puis à réaliser l'assemblage par collage ou tout autre moyen. Le sous-ensemble supérieur de recouvrement est monté dans sa forme désirée comme le montre les figures 10 et 11.It consists of making the upper covering sub-assembly (3) and the mechanical lower sub-assembly (2) separately, then assembling by gluing or any other means. The upper covering sub-assembly is mounted in its desired shape as shown in FIGS. 10 and 11.

Pour cela la membrane (30) est disposée sur l'une des parties du moule (6), l'autre étant destinée à définir la forme complémentaire du sous-ensemble inférieur mécanique (2). L'espace (7) réalisé par les deux parties du moule ainsi assemblées est remplie par injection de la mousse (31), utilisant le procédé RIM par exemple. Après démoulage, les deux sous-ensembles (2) et (3) sont assemblés et solidarisés par tout moyen tel que collage, soudage ou autres.For this, the membrane (30) is arranged on one of the parts of the mold (6), the other being intended to define the complementary shape of the lower mechanical sub-assembly (2). The space (7) produced by the two parts of the mold thus assembled is filled by injection of the foam (31), using the RIM process for example. After demolding, the two sub-assemblies (2) and (3) are assembled and secured by any means such as bonding, welding or the like.

Bien entendu, ce procédé ne permet pas la fabrication d'un ski selon le mode particulier de la figure 5 ; pour une telle réalisation, on préfèrera le procédé précédemment décrit par exemple.Of course, this method does not allow the manufacture of a ski according to the particular mode of Figure 5; for such an embodiment, the method described above is preferred, for example.

La membrane de part sa nature peut être indifféremment décorée avant ou après la réalisation des procédés décrits. Ce qui présente un avantage certain par rapport aux skis classiques où la couche de recouvrement n'est décorable que lors de l'étape finale de réalisation du procédé.The membrane by its nature can be indifferently decorated before or after carrying out the processes described. This has a definite advantage compared to conventional skis where the covering layer can only be decorated during the final stage of carrying out the process.

Claims (11)

  1. Ski constituted of a solid lower sub-assembly (2) and a covering upper sub-assembly; said lower sub-assembly (2) comprising, among others,
    - an external gliding sole (20),
    - lateral metallic running edges (21)
    - a core (22),
    - at least one lower reinforcement element (23),
    - at least one upper reinforcement element (24),
       characterized in that the covering upper sub-assembly comprises, on at least a portion of the length of the ski, a thin and flexible external membrane (30) and a filler material (31) made of elastic and deformable plastic foam inserted between said membrane (30) and upper reinforcement element (24).
  2. Ski according to claim 1, characterized in that membrane (30) extends laterally from one running edge (21) to the other.
  3. Ski according to claim 1 or 2, characterized in that filler material (31) extends continuously along the entire length of the ski.
  4. Ski according to any of the preceding claims, characterized in that membrane (30) is adjacent to upper reinforcement (24) in the area (4) where bindings (5) are to be adapted.
  5. Ski according to claim 4, characterized in that filler material (31) is inserted between lateral surfaces (220, 221) of core (22) and membrane (31) at the level of the binding area.
  6. Ski according to any one of the preceding claims, characterized in that the thickness of the filler material is laterally and/or longitudinally variable along the ski.
  7. Ski according to claim 1, characterized in that covering upper sub-assembly (3) is constituted of a rigid outer shell (32) provided locally with openings, each of them being covered by a membrane (30) and filled with a filler material (31) inserted between membrane (30) and upper reinforcement element (24).
  8. Ski according to any of the preceding claims, characterized in that the membrane has a thickness comprised between 0.1 and 0.5 mm.
  9. Ski according to claim 8, characterized in that membrane (30) is made of a flexible textile or plastic material.
  10. Ski according to any of the preceding claims, characterized in that filler material (31) has a density comprised of between 0.2 and 0.4.
  11. Ski according to claim 10, characterized in that the material is chosen from among the family of polyethers or polyurethanes.
EP91122065A 1991-02-14 1991-12-21 Alpine ski for gliding in snow and ice Expired - Lifetime EP0498963B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9101918A FR2672810B1 (en) 1991-02-14 1991-02-14 ALPINE SKI FOR SLIDING ON SNOW AND ICE.
FR9101918 1991-02-14

Publications (2)

Publication Number Publication Date
EP0498963A1 EP0498963A1 (en) 1992-08-19
EP0498963B1 true EP0498963B1 (en) 1995-03-08

Family

ID=9409839

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91122065A Expired - Lifetime EP0498963B1 (en) 1991-02-14 1991-12-21 Alpine ski for gliding in snow and ice

Country Status (6)

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US (1) US5248160A (en)
EP (1) EP0498963B1 (en)
JP (1) JPH04336084A (en)
AT (1) ATE119416T1 (en)
DE (1) DE69108003T2 (en)
FR (1) FR2672810B1 (en)

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Publication number Priority date Publication date Assignee Title
AT399281B (en) * 1989-12-22 1995-04-25 Kaestle Ag SKIING, ESPECIALLY ALPINSKI OR CROSS-COUNTRY SKIING
EP0768911A1 (en) * 1992-09-15 1997-04-23 Hagan Yamaha Sport Ges.M.B.H. Ski, in particular alpine or cross-country ski
FR2700479B1 (en) * 1993-01-19 1995-02-24 Rossignol Sa Process for manufacturing a ski with an injected core and an openwork internal reinforcement, and ski obtained by this process.
DE4319245A1 (en) * 1993-06-09 1994-12-15 Blizzard Gmbh Method for producing a ski, and device for carrying out this method
DE9400038U1 (en) * 1994-01-03 1994-05-19 Kaestle Ag Hohenems ski
FR2749519B1 (en) * 1996-06-06 1998-09-11 Salomon Sa GLIDING BOARD COVERING COMPLEX
US6131939A (en) * 1998-08-17 2000-10-17 Fels Canadian Ski Company Ltd. Snow ski having slidingly interconnected upper and lower ski sections
US6273440B1 (en) * 1998-12-07 2001-08-14 Reno Wilson, Inc. Metal sports board
US6520529B1 (en) * 1999-09-29 2003-02-18 K-2 Corporation Integrated modular glide board
IT248134Y1 (en) * 1999-11-24 2002-12-10 Benetton Spa SKI STRUCTURE
FR2892340B1 (en) * 2005-10-24 2008-02-22 Salomon Sa IMPROVED SANDWICH LAMINATE STRUCTURE
FR2892379B1 (en) * 2005-10-24 2008-04-04 Salomon Sa SLIDING BOARD COMPRISING A REINFORCED SANDWICH STRUCTURE
US20090045605A1 (en) * 2007-08-17 2009-02-19 Pat Keane Snow ski
AT13391U1 (en) * 2012-12-20 2013-12-15 Fischer Sports Gmbh Ski, especially touring skis

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US3863944A (en) * 1972-05-11 1975-02-04 Thomas P Waddel Anti crossover device
DE2909678A1 (en) * 1979-03-12 1980-09-25 Salomon Sommer Edfriede Snow shedding aid for skiers - is made as hollow body from non-deformable elastic material and fitted with detachable connecting points
US4409287A (en) * 1981-06-09 1983-10-11 Harrison Thomas B Ski protective device
AT378324B (en) * 1982-09-13 1985-07-25 Streli Elke TINNED PLATE FOR FIXING THE BONES IN THE BODIES IN BONE BREAKS
DE3236016A1 (en) * 1982-09-29 1984-04-12 Hubert Dipl.-Ing. Architekt 7833 Endingen Brinckemper Hollow bodied ski
ATA325883A (en) * 1983-09-13 1984-12-15 Rohrmoser Alois Skifabrik SKI
DE3437865A1 (en) * 1983-10-21 1985-05-09 Kabushiki Kaisha Swallow Ski, Iiyama, Nagano MANUFACTURING PROCESS FOR SKIS
FR2565836A1 (en) * 1983-11-25 1985-12-20 Cheramy Sylvain Monobloc ski structure with biconvex profile
US5122085A (en) * 1990-10-09 1992-06-16 Heath Clayton L Water sports board

Also Published As

Publication number Publication date
FR2672810B1 (en) 1993-04-23
FR2672810A1 (en) 1992-08-21
DE69108003T2 (en) 1995-08-10
US5248160A (en) 1993-09-28
ATE119416T1 (en) 1995-03-15
JPH04336084A (en) 1992-11-24
DE69108003D1 (en) 1995-04-13
EP0498963A1 (en) 1992-08-19

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