EP1247550B1 - Method of manufacturing of a snow-glider with a decoration and protection element - Google Patents

Method of manufacturing of a snow-glider with a decoration and protection element Download PDF

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Publication number
EP1247550B1
EP1247550B1 EP02356057A EP02356057A EP1247550B1 EP 1247550 B1 EP1247550 B1 EP 1247550B1 EP 02356057 A EP02356057 A EP 02356057A EP 02356057 A EP02356057 A EP 02356057A EP 1247550 B1 EP1247550 B1 EP 1247550B1
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EP
European Patent Office
Prior art keywords
cut
out part
upper sheet
layer
gliding board
Prior art date
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.)
Expired - Lifetime
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EP02356057A
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German (de)
French (fr)
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EP1247550A1 (en
Inventor
Philippe Lazergue
Thierry Monnet
Jacky Christoud
Daniel Monteillet
Yves Couturier Bardin
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Skis Rossignol SA
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Skis Rossignol SA
Rossignol SA
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Publication of EP1247550A1 publication Critical patent/EP1247550A1/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
    • A63C5/003—Structure, covering or decoration of 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
    • A63C5/12—Making thereof; Selection of particular materials
    • A63C5/126—Structure of the core
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
    • A63C2203/08—Decoration

Definitions

  • the present invention relates to a method of manufacturing a snow board on snow having a decorative element and protection.
  • the present invention also relates to a polymer film for the manufacture of a board for gliding on snow.
  • the present invention also relates to a decorative and protective element intended to form the decoration and the upper protection of a snow gliding board.
  • the present invention finally relates to a snow sliding board obtained according to the manufacturing method.
  • the decoration process is an important phase in the production of a board for gliding on snow, such as an alpine ski, a surf, a monoski, ...
  • the element of decoration and protection intended to form the decoration and the superior protection must be of high quality, durable, resistant to external aggressions and inexpensive. This element must resist scratches, UV, low temperatures, humidity, cleaning solvents, etc.
  • the decoration and protection element may be particularly interesting to insert into the decoration and protection element one or more pieces of a material having different properties, so that the user can easily maintain his gliding board with or without his gloves without feeling cold or smooth and slippery on the upper surface.
  • FR-2.313.953 and FR-2.366.039 disclose a snow-sliding board comprising a decorative and protective element intended to form the decoration and the upper protection, having additional segments cut out, in different colors and positioned one after the other in the longitudinal direction relative to the gliding board.
  • the different cut segments are applied to a lining in the form of a lattice arranged at the joint areas between the segments and allowing pre-assembly of the upper element.
  • the main drawback of this method lies in the absence of reliable and sealed joints between the additional segments and the rest of the decorative and protective element. This will lead in particular to adhesive leaks during subsequent molding steps of the board.
  • a method of manufacturing a snow board on snow which includes a step of making a decorative element and protection of the board.
  • This element has at least one layer which is decorated or must be decorated on at least one of its faces.
  • This method consists in making at least one window by cutting in the upper layer, then locally report a piece of transparent or translucent material, on the side of the inner face of the layer, at the window location to cover it completely. Finally, the insert is secured to the upper layer.
  • the main disadvantage of the method is that due to the covering of the window and the insert, the material of the part must be compatible and must be able to bond with the material constituting the upper layer. In addition, to ensure perfect cohesion, the material of the insert must be easily bonded with the material or materials constituting the rest of the underlying structure of the board.
  • a first problem consists in implementing a method of manufacturing a snow gliding board with an upper protection and decoration element, comprising one or more inserts made of a material different from those constituting the element. superior protection and decoration.
  • a second problem is to implement a method of manufacturing a snow sliding board to prevent back, leaks and burrs of adhesive during the subsequent steps of molding the board.
  • a third problem is to provide a board for sliding on snow with a means having sealing properties to any liquid or pasty adhesive used for the subsequent steps of molding the board.
  • a fourth problem is to develop a method incorporating a means that is compatible with adhesives such as epoxy resins or polyurethane foams in their expansion phase.
  • a fifth problem is to design a means for a snow board on snow developing adhesion properties both with the upper leaf or sheets constituting the upper element of decoration and protection and the inserts.
  • a sixth problem posed is to make a snowboard with one or more inserts of a material allowing the user to take and handle his board without inconvenience.
  • a method of manufacturing a board for gliding on snow comprises a step consisting in producing a decoration and protection element, intended to form the decoration and the upper protection of the board for gliding on snow, having at least one sheet upper sheet consisting of at least one material or a superposition of at least one material, said top sheet being decorated or to be decorated on at least one of its faces.
  • the first and third layers of the film may have a thickness substantially between 10 microns and 40 microns, preferably equal to 25 microns.
  • the central layer may have a thickness substantially between 45 microns and 100 microns, preferably equal to 70 microns.
  • the thermoplastic polymer having sealing properties to any liquid or pasty adhesive of the core layer may be a polyurethane.
  • the hot melt adhesive of the first and third layers may have a softening point preferably substantially less than or equal to 80 ° C.
  • the thermoplastic polyurethane of the central layer may have a softening point preferably substantially greater than or equal to 150 ° C.
  • the hot-melt adhesive may be a copolyamide compatible with adhesives of epoxy resin type, or polyurethane foams in their expansion phase.
  • the hot melt adhesive may be a copolyamide developing adhesion properties with the upper sheet (s) and the one or more inserts.
  • the material used as an insert may advantageously have a hardness of 85 Shore A or lower, and a high coefficient of friction to give it soft touch qualities.
  • the decorative and protective element can be secured during molding to the other materials constituting the structure of the snow slide board using epoxy resins or polyurethane foams in their expansion phase.
  • the insert may have a hardness less than or equal to 85 Shore A, and a high coefficient of friction to give it soft touch qualities.
  • a board for gliding on snow for example an alpine ski (1), comprises a gliding sole (2) bordered by two lateral edges (3, 4).
  • the ski (1) comprises a decorative and protective element (6) forming the decoration and the upper protection of the ski.
  • This decorative and protective element (6) itself consists of one or more upper leaves.
  • a top sheet In the case where a top sheet is used, it itself consists of one or more materials, in particular of the polymer type. In the case where several upper sheets are used, these are constituted by the superposition of a single material or alternatively by the superposition of an alternation of different materials.
  • the ski comprises two side partial edges (7, 8), the decorative and protective element 6 then forming a partial hull. .
  • the lateral edges are absent, the decorative and protective element (6) then forming an upper envelope.
  • the edges (7, 8) are deployed from the side edges (3, 4) respectively, to the element of decoration and protection (6) which is planar.
  • the decorative and protective element (6) comprises at least one insert positioned on its upper surface.
  • a single insert (13) positioned towards the spatula (14).
  • the two inserts (9, 11), as well as the insert (13), are, in the proposed embodiment, symmetrically arranged with respect to the median longitudinal axis of the ski. An asymmetrical arrangement would remain within the scope of the invention.
  • the inserts shown (9, 11, 13) have, seen from above, an oval shape. However, all the possibilities of shape and positioning are possible without departing from the scope of the invention.
  • the materials of particular interest for the inserts (9, 11, 13) are block copolymer styrenes.
  • Styrene-Butadiene-Rubber materials, of which Santoprene® is one, have given particularly interesting results.
  • the thickness of the inserts (9, 11, 13) is between 0.2 mm and 2 mm, preferably between 0.5 mm and 1 mm.
  • the decorative and protective element (6) is itself constituted, for example, a mixture of Styrene-Acrylonitrile (SAN) and thermoplastic polyurethane (TPU). This mixture is optionally transparent, which allows a decoration of the inner face, which is more durable and protected by the thickness of the decorative element and protection (6). As the case may be, the constituent upper leaf (s) of this decorative and protective element (6) are decorated on at least one of their faces.
  • SAN Styrene-Acrylonitrile
  • TPU thermoplastic polyurethane
  • a first fibrous reinforcement (16) for example laminated type of fiberglass impregnated with epoxy resin.
  • a second fiber reinforcement (17) also for example of laminated type of fiberglass impregnated with epoxy resin.
  • the ski (1) finally comprises a central core (18) which may optionally have one or more reinforcements of the metal type.
  • a step is provided for forming the insert or inserts (9, 11, 13). This step divides itself into substeps.
  • At least a portion (19) is cleaned by cutting into a determined pattern of the upper leaf (s).
  • the pattern can be delimited as for example that shown in Figure 1, or can be truly an entire part, as for example according to FR-2.313.953.
  • This cut portion (19) can also be positioned laterally in the case of the "hull" ski (see Figure 4).
  • one or more inserts (13) are positioned in the cut portion or portions (19), according to the arrow P.
  • the at least one insert (13) may have dimensions equal to those of the cut portion ( 19), so that there will be no gap between the upper leaf (s).
  • Another possibility is that the inserts or inserts have dimensions smaller than those of the cut portion, revealing one or more gaps between the inserts or inserts and the sheet or sheets.
  • a third substep is covered according to the arrow R each of the inserts (13) with one or more portions of a film of polymeric material (21).
  • the upper decoration and protection element (6) is positioned upside down at the bottom of a mold.
  • the step of producing the upper decoration and protection element (6) comprises the first sub-step of cutting the upper sheet or sheets in a predetermined pattern.
  • the cut top sheet or sheets are positioned on one or more portions of the polymer film with the cut portions directly placed at the level of the portions of the polymer film.
  • the cut portion or portions one or more inserts may also have dimensions less than or equal to those of the cut or portions.
  • the polymer film (21) will play several roles. First of all, this film (21) is intended to form a physical barrier in order to prevent creep of the epoxy resin under the decorative and protective element (6). This film (21) will also play the role chemical barrier, to prevent the epoxy resin from reaching the constituent styrenic material or inserts (9, 11, 13).
  • this film allows the insert or inserts (13) to be secured to the upper element of protection and decoration (6). Then, this film (21) adheres by its protruding parts to the underside of the decorative element and protection (6).
  • this film (21) is a three-layer film.
  • the first upper layer (22) has a thickness substantially between 10 microns and 40 microns and will preferably be equal to 25 microns.
  • the second central layer (23) will have a thickness substantially between 45 microns and 100 microns, and preferably will be equal to 70 microns.
  • the lower third layer (24) will also have a thickness substantially equivalent to that of the upper layer (22), that is to say between 10 microns and 40 microns, and preferably equal to 25 microns.
  • the first upper layer (22) is made of a polymeric material having a softening point substantially less than or equal to 80 ° C.
  • this upper layer (22) is a hot melt adhesive, for example a hot melt copolyamide.
  • the copolyamide is compatible with the styrenic material constituting the inserts (13).
  • the lower third layer (24) is also a copolyamide hot melt adhesive.
  • the copolyamides retained are compatible, either with epoxy resin adhesives in the case where the ski (1) is molded by superposition of its constituent elements including the central core (18) already manufactured, or with polyurethane foams in their expansion phase in the case where the ski (1) is molded simultaneously by the injection of the central core (18).
  • the constituent material of the central layer (23) has a high softening point, that is to say above 150 ° C.
  • a particularly interesting material is polyurethane which allows both excellent lamination with the copolyamide film of the upper layer (22) and the copolyamide film of the lower layer (24), and also forms an excellent barrier to epoxy resins or foams polyurethane in their expansion phases, during the subsequent molding steps and / or injection of the central core (18).
  • the film (21) can be inserted into the gaps formed between the upper decoration and protection element (6) and the inset (s) (13) smaller dimensions.
  • the ski manufacturing process will continue with the positioning in a mold of this element (6), then by molding skiing proper.

Landscapes

  • Laminated Bodies (AREA)
  • Lubricants (AREA)
  • Decoration By Transfer Pictures (AREA)

Abstract

A cut out (19) is formed according to a predetermined pattern, in the upper layers. Inserts (13) of appropriate dimensions are then located in the recess. A polymer barrier film (21) exceeding the size of the cut out is then added, to seal between insert and upper layers (6), blocking adhesive from reaching other surfaces of the layers, during later stages when the ski is molded. <??>An Independent claim is included for a corresponding: polymer film, protective decoration and ski.

Description

La présente invention concerne un procédé de fabrication d'une planche de glisse sur neige présentant un élément de décoration et de protection.The present invention relates to a method of manufacturing a snow board on snow having a decorative element and protection.

La présente invention concerne également un film polymère destiné à la fabrication d'une planche de glisse sur neige. La présente invention concerne encore un élément de décoration et de protection destiné à former la décoration et la protection supérieure d'une planche de glisse sur neige. La présente invention se rapporte enfin une planche de glisse sur neige obtenue conformément au procédé de fabrication.The present invention also relates to a polymer film for the manufacture of a board for gliding on snow. The present invention also relates to a decorative and protective element intended to form the decoration and the upper protection of a snow gliding board. The present invention finally relates to a snow sliding board obtained according to the manufacturing method.

Le procédé de décoration est une phase importante dans la fabrication d'une planche de glisse sur neige, tel qu'un ski alpin, un surf, un monoski, ... L'élément de décoration et de protection destiné à former la décoration et la protection supérieure doit être de grande qualité, durable, résistant aux agressions extérieures et peu coûteux. Cet élément doit résister en effet aux rayures, aux UV, aux basses températures, à l'humidité, aux solvants de nettoyage, ...The decoration process is an important phase in the production of a board for gliding on snow, such as an alpine ski, a surf, a monoski, ... The element of decoration and protection intended to form the decoration and the superior protection must be of high quality, durable, resistant to external aggressions and inexpensive. This element must resist scratches, UV, low temperatures, humidity, cleaning solvents, etc.

En outre, il peut s'avérer particulièrement intéressant d'insérer dans l'élément de décoration et de protection une ou plusieurs pièces en un matériau présentant des propriétés différentes, afin que l'utilisateur puisse facilement maintenir sa planche de glisse avec ou sans ses gants, sans avoir de sensation de froid ou d'aspect lisse et glissant sur la surface supérieure.In addition, it may be particularly interesting to insert into the decoration and protection element one or more pieces of a material having different properties, so that the user can easily maintain his gliding board with or without his gloves without feeling cold or smooth and slippery on the upper surface.

Etat de la techniqueState of the art

On connaît d'après les documents FR- 2.313.953 et FR- 2.366.039, une planche de glisse sur neige comprenant un élément de décoration et de protection, destiné à former la décoration et la protection supérieure, présentant des segments additionnels découpés, en différentes couleurs et positionnés les uns à la suite des autres selon la direction longitudinale par rapport à la planche de glisse.Document FR-2.313.953 and FR-2.366.039 disclose a snow-sliding board comprising a decorative and protective element intended to form the decoration and the upper protection, having additional segments cut out, in different colors and positioned one after the other in the longitudinal direction relative to the gliding board.

Dans le procédé de fabrication correspondant, les différents segments découpés sont appliqués sur un garnissage sous la forme d'un treillis disposé au niveau des zones de joint entre les segments et permettant un pré-assemblage de l'élément supérieur.In the corresponding manufacturing method, the different cut segments are applied to a lining in the form of a lattice arranged at the joint areas between the segments and allowing pre-assembly of the upper element.

Le principal inconvénient de ce procédé réside dans l'absence de joints fiables et étanches entre les segments additionnels et le reste de l'élément de décoration et de protection. Ceci va conduire notamment à des fuites d'adhésif lors des étapes ultérieures de moulage de la planche.The main drawback of this method lies in the absence of reliable and sealed joints between the additional segments and the rest of the decorative and protective element. This will lead in particular to adhesive leaks during subsequent molding steps of the board.

On connaît également d'après le document FR-2.740.981, un procédé de fabrication d'une planche de glisse sur neige, qui comprend notamment une étape consistant à réaliser un élément de décoration et de protection de la planche. Cet élément présente au moins une couche qui est décorée ou doit être décorée sur au moins l'une de ses faces.Also known from FR-2.740.981, a method of manufacturing a snow board on snow, which includes a step of making a decorative element and protection of the board. This element has at least one layer which is decorated or must be decorated on at least one of its faces.

Ce procédé consiste à réaliser au moins une fenêtre par découpage dans la couche supérieure, puis à rapporter localement une pièce en matériau transparent ou translucide, du côté de la face interne de la couche, à l'endroit de la fenêtre pour la recouvrir entièrement. Enfin, on solidarise la pièce rapportée avec la couche supérieure.This method consists in making at least one window by cutting in the upper layer, then locally report a piece of transparent or translucent material, on the side of the inner face of the layer, at the window location to cover it completely. Finally, the insert is secured to the upper layer.

Le principal inconvénient du procédé est qu'en raison du recouvrement de la fenêtre et de la pièce rapportée, le matériau de la pièce doit être compatible et doit pouvoir se coller avec le matériau constituant la couche supérieure. De plus, afin d'assurer la cohésion parfaite, le matériau de la pièce rapportée doit pouvoir se coller facilement avec le ou les matériaux constituant le reste de la structure sous-jacente de la planche.The main disadvantage of the method is that due to the covering of the window and the insert, the material of the part must be compatible and must be able to bond with the material constituting the upper layer. In addition, to ensure perfect cohesion, the material of the insert must be easily bonded with the material or materials constituting the rest of the underlying structure of the board.

Résumé de l'inventionSummary of the invention

Un premier problème consiste à mettre en oeuvre un procédé de fabrication d'une planche de glisse sur neige avec un élément supérieur de protection et de décoration, comprenant un ou plusieurs inserts en un matériau différent de ceux constituant l'élément supérieur de protection et de décoration.A first problem consists in implementing a method of manufacturing a snow gliding board with an upper protection and decoration element, comprising one or more inserts made of a material different from those constituting the element. superior protection and decoration.

Un deuxième problème est de mettre en oeuvre un procédé de fabrication d'une planche de glisse sur neige permettant d'éviter des remontés, des fuites et des bavures d'adhésif lors des étapes ultérieures de moulage de la planche.A second problem is to implement a method of manufacturing a snow sliding board to prevent back, leaks and burrs of adhesive during the subsequent steps of molding the board.

Un troisième problème consiste à prévoir une planche de glisse sur neige avec un moyen présentant des propriétés d'étanchéité à tout adhésif liquide ou pâteux utilisé pour les étapes ultérieures de moulage de la planche.A third problem is to provide a board for sliding on snow with a means having sealing properties to any liquid or pasty adhesive used for the subsequent steps of molding the board.

Un quatrième problème est de mettre au point un procédé intégrant un moyen qui soit compatible avec des adhésifs de type résines époxy ou mousses de polyuréthannes dans leur phase d'expansion.A fourth problem is to develop a method incorporating a means that is compatible with adhesives such as epoxy resins or polyurethane foams in their expansion phase.

Un cinquième problème est de concevoir un moyen destiné à une planche de glisse sur neige développant des propriétés d'adhésion à la fois avec la ou les feuilles supérieures constitutives de l'élément supérieur de décoration et de protection et le ou les inserts.A fifth problem is to design a means for a snow board on snow developing adhesion properties both with the upper leaf or sheets constituting the upper element of decoration and protection and the inserts.

Un sixième problème posé est de réaliser une planche de glisse sur neige avec un ou plusieurs inserts en un matériau permettant à l'utilisateur de prendre et de manipuler sa planche sans désagréments.A sixth problem posed is to make a snowboard with one or more inserts of a material allowing the user to take and handle his board without inconvenience.

Un procédé de fabrication d'une planche de glisse sur neige, comprend notamment une étape consistant à réaliser un élément de décoration et de protection, destiné à former la décoration et la protection supérieure de la planche de glisse sur neige, présentant au moins une feuille supérieure constituée d'au moins un matériau ou d'une superposition d'au moins un matériau, ladite feuille supérieure étant décorée ou devant être décorée sur au moins l'une de ses faces.A method of manufacturing a board for gliding on snow, in particular comprises a step consisting in producing a decoration and protection element, intended to form the decoration and the upper protection of the board for gliding on snow, having at least one sheet upper sheet consisting of at least one material or a superposition of at least one material, said top sheet being decorated or to be decorated on at least one of its faces.

Conformément à un premier aspect de l'invention, dans cette étape :

  • (a) on ménage au moins une partie découpée selon un motif déterminé de la ou des feuilles supérieures ;
  • (b) on positionne ensuite, dans la ou les parties découpées de la ou des feuilles supérieures, un ou plusieurs inserts de dimensions inférieures ou égales à celles de la ou des parties découpées ; et
  • (c) on recouvre chaque insert avec une ou plusieurs portions d'un film polymère barrière ayant des dimensions supérieures à celles de la ou des parties découpées, afin d'assurer l'étanchéité entre le ou les inserts et la ou les feuilles supérieures pour empêcher le passage d'un adhésif vers au moins une autre des faces de la ou des feuilles, lors des étapes ultérieures de moulage de la planche de glisse sur neige.
According to a first aspect of the invention, in this step:
  • (a) cleaning at least a portion cut in a given pattern of the upper leaf (s);
  • (b) is then positioned, in the cut or portions of the upper sheet or sheets, one or more inserts of dimensions less than or equal to those of the cut or portions; and
  • (c) covering each insert with one or more portions of a barrier polymeric film having dimensions greater than those of the at least one portion cut to provide a seal between the insert (s) and the upper sheet (s) to prevent passage of adhesive to at least one other face of the sheet (s) during subsequent molding steps of the board sliding on snow.

Conformément à un deuxième aspect de la présente invention, dans cette étape :

  • (a) on ménage au moins une partie découpée selon un motif déterminé de la ou des feuilles supérieures ;
  • (b) on positionne ensuite la ou les feuilles supérieures découpées en plaçant la ou les parties découpées sur une ou plusieurs portions de film polymère barrière ayant des dimensions supérieures à celles de la ou des parties découpées, pour empêcher le passage d'un adhésif vers au moins une autre des faces de la ou des feuilles, lors des étapes ultérieures de moulage de la planche de glisse sur neige ; et
  • (c) on positionne dans la ou les parties découpées de la ou des feuilles supérieures, un ou plusieurs inserts de dimensions inférieures ou égales à celles de la ou des parties découpées.
According to a second aspect of the present invention, in this step:
  • (a) cleaning at least a portion cut in a given pattern of the upper leaf (s);
  • (b) the cut top sheet (s) are then positioned by placing the cut-off portion (s) on one or more portions of barrier polymer film having dimensions greater than those of the cut-out portion (s) to prevent the passage of an adhesive towards at least one other face of the sheet or sheets, during the subsequent molding steps of the snow gliding board; and
  • (c) is positioned in the cut or portions of the upper sheet or sheets, one or more inserts of dimensions less than or equal to those of the cut or portions.

Une solidarisation de la ou des feuilles supérieures, du ou des inserts et du ou des films polymère barrière peut être réalisée par pressage à chaud. Préférentiellement, le film polymère barrière peut être un film tricouche. Le film polymère tricouche peut alors comprendre favorablement :

  • une première couche en un adhésif thermofusible ;
  • une couche centrale en un polymère thermoplastique présentant des propriétés d'étanchéité à tout adhésif liquide ou pâteux de type résines époxy, ou mousses de polyuréthannes dans leur phase d'expansion ; et
  • une troisième couche en un adhésif thermofusible, analogue à l'adhésif thermofusible utilisé pour la première couche.
Solidarity of the upper sheet (s), the at least one inserts and the barrier polymer film (s) can be achieved by hot pressing. Preferably, the barrier polymer film may be a three-layer film. The three-layer polymer film can then understand favorably:
  • a first layer of a hot melt adhesive;
  • a central layer of a thermoplastic polymer having sealing properties to any liquid or pasty adhesive of the epoxy resin type, or polyurethane foams in their expansion phase; and
  • a third layer of a hot melt adhesive, similar to the hot melt adhesive used for the first layer.

De manière avantageuse, les première et troisième couches du film peuvent présenter une épaisseur sensiblement comprise entre 10 µm et 40 µm, préférentiellement égale à 25 µm. De manière avantageuse, la couche centrale peut présenter une épaisseur sensiblement comprise entre 45 µm et 100 µm, préférentiellement égale à 70 µm.Advantageously, the first and third layers of the film may have a thickness substantially between 10 microns and 40 microns, preferably equal to 25 microns. Advantageously, the central layer may have a thickness substantially between 45 microns and 100 microns, preferably equal to 70 microns.

Le polymère thermoplastique présentant des propriétés d'étanchéité à tout adhésif liquide ou pâteux de la couche centrale peut être un polyuréthanne. L'adhésif thermofusible des première et troisième couches peut présenter un point de ramollissement de préférence sensiblement inférieur ou égal à 80°C. Le polyuréthanne thermoplastique de la couche centrale peut présenter un point de ramollissement de préférence sensiblement supérieur ou égal à 150°C.The thermoplastic polymer having sealing properties to any liquid or pasty adhesive of the core layer may be a polyurethane. The hot melt adhesive of the first and third layers may have a softening point preferably substantially less than or equal to 80 ° C. The thermoplastic polyurethane of the central layer may have a softening point preferably substantially greater than or equal to 150 ° C.

L'adhésif thermofusible peut être un copolyamide compatible avec des adhésifs de type résines époxy, ou mousses de polyuréthannes dans leur phase d'expansion. L'adhésif thermofusible peut être un copolyamide développant des propriétés d'adhésion avec la ou les feuilles supérieures et le ou les inserts.The hot-melt adhesive may be a copolyamide compatible with adhesives of epoxy resin type, or polyurethane foams in their expansion phase. The hot melt adhesive may be a copolyamide developing adhesion properties with the upper sheet (s) and the one or more inserts.

Le matériau utilisé comme insert peut avantageusement présenter une dureté inférieure ou égale à 85 Shore A, et un fort coefficient de frottement pour lui conférer des qualités de toucher souple.The material used as an insert may advantageously have a hardness of 85 Shore A or lower, and a high coefficient of friction to give it soft touch qualities.

Conformément à un troisième aspect de l'invention, une utilisation d'un film polymère dans une planche de glisse sur neige, fabriquée conformément au procédé décrit ci-dessus, se fait sous la forme d'un film polymère tricouche comprenant :

  • une première couche en un adhésif thermofusible ;
  • une couche centrale en un polymère thermoplastique présentant des propriétés d'étanchéité à tout adhésif liquide ou pâteux de type résines époxy ou mousses de polyuréthannes dans leur phase d'expansion ; et
  • une troisième couche en un adhésif thermofusible, analogue à l'adhésif thermofusible utilisé pour la première couche.
According to a third aspect of the invention, a use of a polymer film in a snow gliding board, made in accordance with the method described above, is in the form of a three-layer polymer film comprising:
  • a first layer of a hot melt adhesive;
  • a core layer of a thermoplastic polymer having sealing properties to any liquid or pasty adhesives such as epoxy resins or polyurethane foams in their expansion phase; and
  • a third layer of a hot melt adhesive, similar to the hot melt adhesive used for the first layer.

Conformément à un quatrième aspect de l'invention, une utilisation d'un élément de décoration et de protection dans une planche de glisse sur neige, fabriquée conformément au procédé décrit ci-dessus, se fait sous la forme d'au moins une feuille supérieure constituée d'au moins un matériau ou d'une superposition d'au moins un matériau, ladite feuille supérieure étant décorée ou devant être décorée sur au moins l'une de ses faces et comprenant :

  • au moins une partie, découpée selon un motif déterminé ;
  • un ou plusieurs inserts, de dimensions inférieures ou égales à celles de la ou des parties découpées et positionnés dans la ou les parties découpées ; et
  • une ou plusieurs portions de film polymère barrière, ayant des dimensions supérieures à celles de la ou des parties découpées et recouvrant chaque insert.
According to a fourth aspect of the invention, a use of a decorative and protective element in a snow gliding board, manufactured in accordance with the method described above, is in the form of at least one upper sheet consisting of at least one material or a superposition of at least one material, said topsheet being decorated or to be decorated on at least one of its faces and comprising:
  • at least a portion, cut in a given pattern;
  • one or more inserts, of dimensions less than or equal to those of the cut-out portion or portions and positioned in the cut-out portion or portions; and
  • one or more portions of barrier polymer film, having dimensions greater than those of the cut-out portion or portions and covering each insert.

Conformément à un cinquième aspect de l'invention, une planche de glisse sur neige comprenant notamment un élément de décoration et de protection, destiné à former la décoration et la protection supérieure de la planche de glisse sur neige, présentant au moins une feuille supérieure constituée d'au moins un matériau ou d'une superposition d'au moins un matériau, ladite feuille supérieure étant décorée ou devant être décorée sur au moins l'une de ses faces, est caractérisée en ce que l'élément de décoration et de protection comprend :

  • au moins une partie, découpée selon un motif déterminé ;
  • un ou plusieurs inserts, de dimensions inférieures ou égales à celles de la ou des parties découpées et positionnés dans la ou les parties découpées ; et
  • une ou plusieurs portions de film polymère barrière, ayant des dimensions supérieures à celles de la ou des parties découpées et recouvrant chaque insert.
According to a fifth aspect of the invention, a board for gliding on snow comprising in particular a decoration and protection element, intended to form the decoration and the upper protection of the board for gliding on snow, having at least one upper sheet constituted of at least one material or a superposition of at least one material, said top sheet being decorated or to be decorated on at least one of its faces, is characterized in that the decorative and protective element includes:
  • at least a portion, cut in a given pattern;
  • one or more inserts, of dimensions less than or equal to those of the cut-out portion or portions and positioned in the cut-out portion or portions; and
  • one or more portions of barrier polymer film, having dimensions greater than those of the cut-out portion or portions and covering each insert.

L'élément de décoration et de protection peut être solidarisé lors du moulage aux autres matériaux constitutifs de la structure de la planche de glisse sur neige à l'aide de résines époxy ou de mousses de polyuréthannes dans leur phase d'expansion. L'insert peut présenter une dureté inférieure ou égale à 85 Shore A, et un fort coefficient de frottement pour lui conférer des qualités de toucher souple.The decorative and protective element can be secured during molding to the other materials constituting the structure of the snow slide board using epoxy resins or polyurethane foams in their expansion phase. The insert may have a hardness less than or equal to 85 Shore A, and a high coefficient of friction to give it soft touch qualities.

Description des dessinsDescription of the drawings

L'invention sera bien comprise et ses divers avantages et différentes caractéristiques ressortiront mieux lors de la description suivante, de l'exemple non limitatif de réalisation, en référence aux dessins schématiques annexés, dans lesquels :

  • la Figure 1 représente une vue du dessus d'un ski dont l'élément de décoration et de protection comprend plusieurs inserts ;
  • la Figure 2 représente une coupe transversale selon le plan II - II de la Figure 1 ;
  • la Figure 3 représente une coupe transversale partielle du ski selon le plan III - III de la Figure 1 ;
  • la Figure 4 représente une coupe transversale partielle d'un deuxième type de ski dont l'élément de décoration et de protection comprend des parties en insert ;
  • la Figure 5 représente une coupe transversale partielle d'un troisième type de ski dont l'élément de décoration et de protection comprend des parties en insert ;
  • la Figure 6 représente un synoptique partiel de l'étape consistant à réaliser un élément de décoration et de protection ; et
  • la Figure 6A représente un agrandissement du détail A de la Figure 6.
The invention will be better understood and its various advantages and different characteristics will become more apparent in the following description, of the nonlimiting exemplary embodiment, with reference to the appended diagrammatic drawings, in which:
  • Figure 1 shows a top view of a ski whose decorative element and protection comprises several inserts;
  • Figure 2 shows a cross section along the plane II - II of Figure 1;
  • Figure 3 shows a partial cross-section of the ski along the plane III-III of Figure 1;
  • Figure 4 shows a partial cross section of a second type of ski whose decorative element and protection comprises insert parts;
  • Figure 5 shows a partial cross-section of a third type of ski whose decoration and protection element comprises insert parts;
  • Figure 6 shows a partial block diagram of the step of providing a decorative and protective element; and
  • Figure 6A shows an enlargement of Detail A of Figure 6.

Description détailléedetailed description

Une planche de glisse sur neige, par exemple un ski alpin (1), comprend une semelle de glisse (2) bordée par deux carres latérales (3,4). Le ski (1) comprend un élément de décoration et de protection (6) formant la décoration et la protection supérieure du ski. Cet élément de décoration et de protection (6) est lui-même constitué d'une ou plusieurs feuilles supérieures. Dans le cas où l'on utilise une feuille supérieure, celle-ci est elle-même constituée d'un seul ou de plusieurs matériaux, notamment de type polymère. Dans le cas où l'on utilise plusieurs feuilles supérieures, celles-ci sont constituées par la superposition d'un seul matériau ou encore par la superposition d'une alternance de matériaux différents.A board for gliding on snow, for example an alpine ski (1), comprises a gliding sole (2) bordered by two lateral edges (3, 4). The ski (1) comprises a decorative and protective element (6) forming the decoration and the upper protection of the ski. This decorative and protective element (6) itself consists of one or more upper leaves. In the case where a top sheet is used, it itself consists of one or more materials, in particular of the polymer type. In the case where several upper sheets are used, these are constituted by the superposition of a single material or alternatively by the superposition of an alternation of different materials.

Dans le cas d'un ski de type « Dualtec®» (voir plus particulièrement Figures 2 et 3), le ski comprend deux chants partiels latéraux (7, 8), l'élément de décoration et de protection 6 formant alors une coque partielle. Dans le cas d'un ski dit « à coque » (voir Figure 4), les chants latéraux sont absents, l'élément de décoration et de protection (6) formant alors une enveloppe supérieure. Dans le cas d'un ski dit « à section rectangulaire » (voir Figure 5), les chants (7, 8) se déploient à partir des carres latérales (3, 4) respectivement, jusqu'à l'élément de décoration et de protection (6) qui est plan.In the case of a "Dualtec®" type ski (see more particularly FIGS. 2 and 3), the ski comprises two side partial edges (7, 8), the decorative and protective element 6 then forming a partial hull. . In the case of a so-called "shell" ski (see 4), the lateral edges are absent, the decorative and protective element (6) then forming an upper envelope. In the case of a ski called "rectangular section" (see Figure 5), the edges (7, 8) are deployed from the side edges (3, 4) respectively, to the element of decoration and protection (6) which is planar.

Conformément à l'invention, l'élément de décoration et de protection (6) comprend au moins un insert positionné sur sa surface supérieure. A titre d'exemple indicatif, on peut avoir deux inserts (9, 11) placés au niveau de la zone de talon (12). A titre d'exemple indicatif, on peut également avoir un insert unique (13) positionné vers la spatule (14).According to the invention, the decorative and protective element (6) comprises at least one insert positioned on its upper surface. As an indicative example, one can have two inserts (9, 11) placed at the level of the heel area (12). By way of indicative example, it is also possible to have a single insert (13) positioned towards the spatula (14).

Les deux inserts (9, 11), ainsi que l'insert (13), sont, dans l'exemple de réalisation proposé, symétriquement disposés par rapport à l'axe longitudinal médian du ski. Une disposition dissymétrique resterait dans le cadre de l'invention. Les inserts représentés (9, 11, 13) présentent, vu de dessus, une forme ovale. Cependant, toutes les possibilités de forme et de positionnement restent possibles, sans s'écarter du cadre de l'invention.The two inserts (9, 11), as well as the insert (13), are, in the proposed embodiment, symmetrically arranged with respect to the median longitudinal axis of the ski. An asymmetrical arrangement would remain within the scope of the invention. The inserts shown (9, 11, 13) have, seen from above, an oval shape. However, all the possibilities of shape and positioning are possible without departing from the scope of the invention.

Afin de permettre une manipulation aisée du ski (1), avec ou sans les gants, l'utilisateur va rechercher à la fois une sensation de chaleur et une fonction correcte pour agripper. Ceci est obtenu avec un matériau spécifique présentant une dureté inférieure ou égale à 85 Shore A. De plus, ce matériau présente un fort coefficient de frottement afin de lui conférer des qualités de toucher souple (appelé également toucher « soft »).In order to allow easy handling of the ski (1), with or without the gloves, the user will seek both a feeling of warmth and a correct function to grip. This is obtained with a specific material having a hardness of less than or equal to 85 Shore A. In addition, this material has a high coefficient of friction in order to give it soft touch qualities (also called "soft touch").

Les matériaux particulièrement intéressants pour les inserts (9, 11,13) sont des styrènes blocs copolymères. Des matériaux de type Styrène-Butadiène-Rubber, dont fait partie le Santoprène®, ont donné des résultats particulièrement intéressants. A titre d'exemple, l'épaisseur des inserts (9, 11, 13) est comprise entre 0,2 mm et 2 mm, de préférence entre 0,5 mm et 1 mm.The materials of particular interest for the inserts (9, 11, 13) are block copolymer styrenes. Styrene-Butadiene-Rubber materials, of which Santoprene® is one, have given particularly interesting results. For example, the thickness of the inserts (9, 11, 13) is between 0.2 mm and 2 mm, preferably between 0.5 mm and 1 mm.

L'élément de décoration et de protection (6), est lui-même constitué, à titre d'exemple, d'un mélange de Styrène-Acrylonitrile (SAN) et de polyuréthanne thermoplastique (TPU). Ce mélange est éventuellement transparent, ce qui permet une décoration de la face interne, qui se révèle plus durable ainsi protégée par l'épaisseur de l'élément de décoration et de protection (6). Selon le cas, la ou les feuilles supérieures constitutives de cet élément de décoration et de protection (6) sont décorées sur au moins l'une de leurs faces.The decorative and protective element (6) is itself constituted, for example, a mixture of Styrene-Acrylonitrile (SAN) and thermoplastic polyurethane (TPU). This mixture is optionally transparent, which allows a decoration of the inner face, which is more durable and protected by the thickness of the decorative element and protection (6). As the case may be, the constituent upper leaf (s) of this decorative and protective element (6) are decorated on at least one of their faces.

Sur la surface supérieure de la semelle de glisse (2), est positionné un premier renfort fibreux (16), par exemple de type stratifié de fibre de verre imprégné de résine époxy. Sous l'élément de décoration et de protection (6), est également positionné un autre renfort fibreux (17), également par exemple de type stratifié de fibre de verre imprégné de résine époxy. Le ski (1) comprend enfin un noyau central (18) pouvant éventuellement présenter un ou plusieurs renforts de type métallique.On the upper surface of the gliding sole (2), is positioned a first fibrous reinforcement (16), for example laminated type of fiberglass impregnated with epoxy resin. Under the decorative and protective element (6), is also positioned a another fiber reinforcement (17), also for example of laminated type of fiberglass impregnated with epoxy resin. The ski (1) finally comprises a central core (18) which may optionally have one or more reinforcements of the metal type.

Conformément à un procédé de réalisation plus particulièrement intéressant (voir Figure 6), on prévoit une étape servant à former le ou les inserts (9, 11, 13). Cette étape se divise elle-même en sous-étapes.According to a particularly interesting embodiment (see FIG. 6), a step is provided for forming the insert or inserts (9, 11, 13). This step divides itself into substeps.

Dans la première sous-étape, on ménage au moins une partie (19) par découpage selon un motif déterminé de la ou des feuilles supérieures. Le motif peut être délimité comme par exemple celui représenté en Figure 1, ou peut constituer véritablement une partie entière, comme par exemple selon le document FR- 2.313.953. Cette partie découpée (19) peut également être positionnée latéralement dans le cas du ski « à coque » (voir Figure 4).In the first sub-step, at least a portion (19) is cleaned by cutting into a determined pattern of the upper leaf (s). The pattern can be delimited as for example that shown in Figure 1, or can be truly an entire part, as for example according to FR-2.313.953. This cut portion (19) can also be positioned laterally in the case of the "hull" ski (see Figure 4).

Dans une deuxième sous-étape, on positionne dans la ou les parties découpées (19) un ou plusieurs inserts (13), selon la flèche P. Le ou les inserts (13) pourront avoir des dimensions égales à celles de la partie découpée (19), ce qui fait qu'il n'y aura aucun intervalle entre la ou les feuilles supérieures. Une autre possibilité est que le ou les inserts présentent des dimensions inférieures à celles de la partie découpée, laissant apparaître un ou plusieurs intervalles entre le ou les inserts et la ou les feuilles.In a second sub-step, one or more inserts (13) are positioned in the cut portion or portions (19), according to the arrow P. The at least one insert (13) may have dimensions equal to those of the cut portion ( 19), so that there will be no gap between the upper leaf (s). Another possibility is that the inserts or inserts have dimensions smaller than those of the cut portion, revealing one or more gaps between the inserts or inserts and the sheet or sheets.

Dans une troisième sous-étape, on recouvre selon la flèche R chacun des inserts (13) avec une ou plusieurs portions d'un film en matériau polymère (21). Dans ce premier exemple du procédé de réalisation, l'élément supérieur de décoration et de protection (6) est positionné à l'envers au fond d'un moule.In a third substep, is covered according to the arrow R each of the inserts (13) with one or more portions of a film of polymeric material (21). In this first example of the production method, the upper decoration and protection element (6) is positioned upside down at the bottom of a mold.

Dans une deuxième variante de réalisation, l'étape de réalisation de l'élément supérieur de décoration et de protection (6) comprend la première sous-étape de découpage de la ou les feuilles supérieures selon un motif déterminé. Dans une deuxième sous-étape, on positionne la ou les feuilles supérieures découpées sur une ou plusieurs portions de film polymère avec les parties découpées directement placées au niveau des portions de film polymère. Enfin, dans une troisième sous-étape, on place dans la ou les parties découpées un ou plusieurs inserts pouvant également présenter des dimensions inférieures ou égales à celles de la ou des parties découpées.In a second variant embodiment, the step of producing the upper decoration and protection element (6) comprises the first sub-step of cutting the upper sheet or sheets in a predetermined pattern. In a second sub-step, the cut top sheet or sheets are positioned on one or more portions of the polymer film with the cut portions directly placed at the level of the portions of the polymer film. Finally, in a third substep, is placed in the cut portion or portions one or more inserts may also have dimensions less than or equal to those of the cut or portions.

Le film polymère (21) va jouer plusieurs rôles. Tout d'abord, ce film (21) est destiné à former barrière physique afin d'éviter le fluage de la résine époxy se trouvant sous l'élément de décoration et de protection (6). Ce film (21) va également jouer le rôle de barrière chimique, afin d'empêcher la résine époxy d'atteindre le matériau styrénique constitutif du ou des inserts (9, 11, 13).The polymer film (21) will play several roles. First of all, this film (21) is intended to form a physical barrier in order to prevent creep of the epoxy resin under the decorative and protective element (6). This film (21) will also play the role chemical barrier, to prevent the epoxy resin from reaching the constituent styrenic material or inserts (9, 11, 13).

De plus, ce film permet à l'insert ou aux inserts (13) d'être solidarisés à l'élément supérieur de protection et de décoration (6). Ensuite, ce film (21) adhère par ses parties débordantes à la face inférieure de l'élément de décoration et de protection (6).In addition, this film allows the insert or inserts (13) to be secured to the upper element of protection and decoration (6). Then, this film (21) adheres by its protruding parts to the underside of the decorative element and protection (6).

Pour ce faire, ce film (21) est un film tricouche. La première couche supérieure (22) présente une épaisseur sensiblement comprise entre 10 µm et 40 µm et sera préférentiellement égale à 25 µm. La deuxième couche centrale (23) présentera une épaisseur sensiblement comprise entre 45 µm et 100 µm, et de préférence sera égale à 70 µm. La troisième couche inférieure (24) présentera également une épaisseur sensiblement équivalente à celle de la couche supérieure (22), c'est-à-dire comprise entre 10 µm et 40 µm, et de préférence égale à 25 µm.To do this, this film (21) is a three-layer film. The first upper layer (22) has a thickness substantially between 10 microns and 40 microns and will preferably be equal to 25 microns. The second central layer (23) will have a thickness substantially between 45 microns and 100 microns, and preferably will be equal to 70 microns. The lower third layer (24) will also have a thickness substantially equivalent to that of the upper layer (22), that is to say between 10 microns and 40 microns, and preferably equal to 25 microns.

La première couche supérieure (22) est réalisée en un matériau polymère présentant un point de ramollissement sensiblement inférieur ou égal à 80°C. De plus, cette couche supérieure (22) est un adhésif thermofusible, par exemple un copolyamide thermofusible. Le copolyamide est compatible avec le matériau styrénique constitutif du ou des inserts (13).The first upper layer (22) is made of a polymeric material having a softening point substantially less than or equal to 80 ° C. In addition, this upper layer (22) is a hot melt adhesive, for example a hot melt copolyamide. The copolyamide is compatible with the styrenic material constituting the inserts (13).

La troisième couche inférieure (24) est également un adhésif thermofusible de type copolyamide. Les copolyamides retenus sont compatibles, soit avec des adhésifs de type résines époxy dans le cas où le ski (1) est moulé par superposition de ses éléments constitutifs y compris le noyau central (18) déjà fabriqué, soit avec des mousses de polyuréthanne dans leur phase d'expansion dans le cas où le ski (1) est moulé simultanément par l'injection du noyau central (18).The lower third layer (24) is also a copolyamide hot melt adhesive. The copolyamides retained are compatible, either with epoxy resin adhesives in the case where the ski (1) is molded by superposition of its constituent elements including the central core (18) already manufactured, or with polyurethane foams in their expansion phase in the case where the ski (1) is molded simultaneously by the injection of the central core (18).

Le matériau constitutif de la couche centrale (23) présente un haut point de ramollissement, c'est-à-dire ici supérieur à 150°C. Un matériau particulièrement intéressant est le polyuréthanne qui permet à la fois un excellent laminage avec le film copolyamide de la couche supérieure (22) et le film copolyamide de la couche inférieure (24), et forme également une excellente barrière aux résines époxy ou aux mousses de polyuréthanne dans leurs phases d'expansion, lors des étapes ultérieures de moulage et/ou d'injection du noyau central (18).The constituent material of the central layer (23) has a high softening point, that is to say above 150 ° C. A particularly interesting material is polyurethane which allows both excellent lamination with the copolyamide film of the upper layer (22) and the copolyamide film of the lower layer (24), and also forms an excellent barrier to epoxy resins or foams polyurethane in their expansion phases, during the subsequent molding steps and / or injection of the central core (18).

On notera que le film (21) peut s'insérer dans les intervalles formés entre l'élément supérieur de décoration et de protection (6) et le ou les inserts (13) à dimensions inférieures.Note that the film (21) can be inserted into the gaps formed between the upper decoration and protection element (6) and the inset (s) (13) smaller dimensions.

Après cette étape de réalisation de l'élément supérieur de décoration et de protection (6), constituant l'élément intermédiaire, le processus de fabrication du ski va continuer avec le positionnement dans un moule de cet élément (6), puis par le moulage du ski proprement dit.After this step of producing the upper element of decoration and protection (6), constituting the intermediate element, the ski manufacturing process will continue with the positioning in a mold of this element (6), then by molding skiing proper.

La présente invention n'est pas limitée aux modes de réalisation décrits et illustrés. De nombreuses modifications peuvent être réalisées, sans pour autant sortir du cadre défini par la portée du jeu de revendications.The present invention is not limited to the embodiments described and illustrated. Many modifications can be made, without departing from the scope defined by the scope of the set of claims.

Claims (16)

  1. A method for manufacturing a snow gliding board, comprising, in particular, a stage involving producing a decorative and protective element (6), intended to provide decoration and upper protection for the snow gliding board, having at least one upper sheet consisting of at least one material or an overlay of at least one material, said upper sheet being or having to be decorated on at least one of its faces, said stage involving:
    (a) making at least one cut-out part (19) in accordance with the specific pattern of the upper sheet(s);
    (b) then positioning, in the cut-out part(s) (19) of the upper sheet(s) one or more inserts (9, 11, 13) having dimensions equal to or less than those of the cut-out part(s) (19); and
    (c) then covering each insert (9, 11, 13) with one or more pieces of a polymer barrier film (21) having dimensions greater than those of the cut-out part(s) (19) in order to ensure a seal between the insert(s) (9, 11, 13) and the upper sheet(s) to prevent seepage of an adhesive onto at least one of the other faces of the sheet(s) during subsequent stages of moulding the snow gliding board.
  2. A method for manufacturing a snow gliding board (1), comprising, in particular, a stage involving producing a decorative and protective element (6) intended to provide decoration and upper protection for the snow gliding board, having at least one upper sheet consisting of at least one material or an overlay of at least one material, said upper sheet being or having to be decorated on at least one of its faces, said stage involving:
    (a) making at least one cut-out part (19) in accordance with the specific pattern of the upper sheet(s);
    (b) then positioning the upper cut-out sheets by placing the cut-out part(s) on one or more pieces of polymer barrier film (21) having dimensions greater than those of the cut-out part(s) (19) in order to prevent seepage of an adhesive onto at least one of the other faces of the sheet(s) during subsequent stages of moulding the snow gliding board; and
    (c) positioning in the cut-out part(s) of the upper sheet(s) one or more inserts (9, 11, 13) having dimensions equal to or less than those of the cut-out part(s) (19).
  3. A method as claimed in claim 1 or 2, characterised in that the upper sheet(s), the insert(s) (9, 11, 13) and the polymer barrier film(s) (21) are bonded by hot pressing.
  4. A method as claimed in claim 3, characterised in that the polymer barrier film (21) is a triple layer film.
  5. A method as claimed in claim 4, characterised in that the triple layer polymer film (21) comprises:
    - a first layer (22) made of a hot-melt adhesive;
    - a middle layer (23) made of a thermoplastic polymer having sealing properties against all liquid or pasty adhesives of the epoxy resin or of the polyurethane foam type in their expansion phase; and
    - a third layer (24) made of a hot-melt adhesive similar to the hot-melt adhesive used for the first layer.
  6. A method as claimed in claim 5, characterised in that the thermoplastic polymer having sealing properties against all liquid or pasty adhesives in the middle layer is a polyurethane.
  7. A method as claimed in claim 5 or 6, characterised in that the hot-melt adhesive in the first and third layers (22, 24) has a softening point substantially equal to or less than 80 °C and in that the thermoplastic polyurethane in the middle layer (23) has a softening point substantially equal to or greater than 150 °C.
  8. A method as claimed in any of claims 5 to 7, characterised in that the hot-melt adhesive is a copolyamide that is compatible with adhesives of the epoxy resin type or of the polyurethane foam type in their expansion phase.
  9. A method as claimed in any of claims 5 to 7, characterised in that the hot-melt adhesive is a copolyamide that develops adhesion properties with the upper sheet(s) or the insert(s) (9, 11, 13).
  10. A method as claimed in any of claims 4 to 9, characterised in that the first and third layers (22, 24) of the film (21) have a thickness that is substantially between 10 µm and 40 µm, preferably equal to 25 µm, and in that the middle layer (23) has a thickness that is substantially between 45 µm and 100 µm, preferably equal to 70 µm.
  11. A method as claimed in any of the above claims, characterised in that the material used as an insert (9, 11, 13) has a hardness equal to or less than 85 Shore A and a high coefficient of friction in order to make it soft to the touch.
  12. The use of a polymer film (21) in a snow gliding board manufactured in accordance with the method as claimed in any of claims 1 to 11 in the form of a triple layer polymer film (21) comprising:
    - a first layer (22) made of a hot-melt adhesive;
    - a middle layer (23) made of a thermoplastic polymer having sealing properties against all liquid or pasty adhesives of the epoxy resin type or of the polyurethane foam type in their expansion phase; and
    - a third layer (24) made of a hot-melt adhesive similar to the hot-melt adhesive used for the first layer.
  13. The use of a decorative and protective element (6) in a snow gliding board manufactured in accordance with the method as claimed in one of claims 1 to 11 in the form of at least one upper sheet consisting of at least one material or an overlay of at least one material, said upper sheet being or having to be decorated on at least one of its faces and comprising:
    - at least one part (19) cut out in accordance with a specific pattern;
    - one or more inserts (9, 11, 13) having dimensions equal to or less than those of the cut-out part(s) (19) and positioned in the cut-out part(s) (19); and
    - one or more pieces of polymer barrier film (21) having dimensions greater than those of the cut-out part(s) (19) and covering each insert (9, 11, 13).
  14. A snow gliding board comprising, in particular, a decorative and protective element (6) intended to provide decoration and upper protection for the snow gliding board, having at least one upper sheet consisting of at least one material or an overlay of at least one material, said upper sheet being or having to be decorated on at least one of its faces, characterised in that the decorative and protective element (6) comprises:
    - at least one part (19) cut out in accordance with a specific pattern;
    - one or more inserts (9, 11, 13) having dimensions equal to or less than those of the cut-out part(s) (19) and positioned in the cut-out part(s) (19); and
    - one or more pieces of polymer barrier film (21) having dimensions greater than those of the cut-out part(s) (19) and covering each insert (9, 11, 13).
  15. A snow gliding board as claimed in claim 14, characterised in that the decorative and protective element (6) is bonded, during moulding, to the other materials that make up the structure of the snow gliding board with the aid of epoxy resins or polyurethane foams in their expansion phase.
  16. A snow gliding board as claimed in claim 14 or 15, characterised in that insert (9, 11, 13) has a hardness equal to or less than 85 Shore A and a high coefficient of friction in order to make it soft to the touch.
EP02356057A 2001-04-05 2002-03-27 Method of manufacturing of a snow-glider with a decoration and protection element Expired - Lifetime EP1247550B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0104632 2001-04-05
FR0104632A FR2823126B1 (en) 2001-04-05 2001-04-05 PROCESS FOR MANUFACTURING A SNOW SLIDING BOARD WITH A DECORATING AND PROTECTIVE ELEMENT, POLYMERIC FILM, DECORATING AND PROTECTIVE ELEMENT AND SNOW SLIDING BOARD THUS OBTAINED

Publications (2)

Publication Number Publication Date
EP1247550A1 EP1247550A1 (en) 2002-10-09
EP1247550B1 true EP1247550B1 (en) 2006-04-26

Family

ID=8861974

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02356057A Expired - Lifetime EP1247550B1 (en) 2001-04-05 2002-03-27 Method of manufacturing of a snow-glider with a decoration and protection element

Country Status (4)

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EP (1) EP1247550B1 (en)
AT (1) ATE324156T1 (en)
DE (1) DE60210857T2 (en)
FR (1) FR2823126B1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2866576B1 (en) 2004-02-19 2006-05-05 Rossignol Sa SNOWBOARD BOARD WITH UPPER DECORATION AND PROTECTION ELEMENT AND METHOD OF MANUFACTURE
FR2869811B1 (en) 2004-05-05 2006-06-02 Skis Rossignol Sa Sa BOARD OF SLIDERS
FR2873591B1 (en) 2004-07-29 2006-09-08 Skis Rossignol Sa Sa SNOWBOARD BOARD WITH GRIPPING PART
FR2882269A1 (en) 2005-02-23 2006-08-25 Skis Rossignol Sa Sa SNOWBOARD BOARD WITH UPPER ELEMENT OF DECORATION AND PROTECTION
FR2912065B1 (en) 2007-02-02 2009-03-06 Skis Rossignol Soc Par Actions SNOWBOARD BOARD ON SNOW
FR2925344A1 (en) 2007-12-20 2009-06-26 Dynastar Skis Sa SNOWBOARD BOARD AND GAME OF AT LEAST TWO SUCH SNOWBOARD BOARDS
FR2948881B1 (en) 2009-08-06 2013-08-16 Rossignol Sa SLIDING BOARD WITH DECORATION ELEMENT

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ATA452275A (en) 1975-06-12 1976-09-15 Fischer Gmbh METHOD OF MANUFACTURING A PATTERNED TOP COATING OF SKIS
CH608377A5 (en) 1975-06-12 1979-01-15 Fischer Gmbh Method for producing a patterned top coating of skis, and ski with top coating
FR2700273B1 (en) * 1993-01-12 1995-03-31 Salomon Sa Method of decorating a ski top.
FR2740981B1 (en) 1995-11-15 1998-02-06 Salomon Sa PROCESS FOR MANUFACTURING A SEMI-FINISHED DECORATING ELEMENT FOR A SLIDING BOARD

Also Published As

Publication number Publication date
DE60210857D1 (en) 2006-06-01
FR2823126A1 (en) 2002-10-11
DE60210857T2 (en) 2006-12-07
FR2823126B1 (en) 2003-05-23
EP1247550A1 (en) 2002-10-09
ATE324156T1 (en) 2006-05-15

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