EP0120521B1 - Laminated ski with incorporation of metal sheets - Google Patents

Laminated ski with incorporation of metal sheets Download PDF

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Publication number
EP0120521B1
EP0120521B1 EP84200260A EP84200260A EP0120521B1 EP 0120521 B1 EP0120521 B1 EP 0120521B1 EP 84200260 A EP84200260 A EP 84200260A EP 84200260 A EP84200260 A EP 84200260A EP 0120521 B1 EP0120521 B1 EP 0120521B1
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EP
European Patent Office
Prior art keywords
ski
sheet
core
metal blade
hand
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Expired
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EP84200260A
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German (de)
French (fr)
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EP0120521A1 (en
Inventor
Daniel Lacroix
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SKIS LACROIX SA
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SKIS LACROIX SA
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Priority to AT84200260T priority Critical patent/ATE39624T1/en
Publication of EP0120521A1 publication Critical patent/EP0120521A1/en
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Publication of EP0120521B1 publication Critical patent/EP0120521B1/en
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/12—Making thereof; Selection of particular materials

Definitions

  • the invention relates to a laminated ski comprising a core and layers of glass fabric, with the incorporation of at least one metal sheet or of a sheet composed of fibers of high resistance.
  • Document FR-A-2 471 794 describes a ski which consists of a thimble, an upper ply, a lower ply, at least one metal blade under the upper ply and / or above of the lower ply, characterized in that the upper ply and / or the lower ply have a profiled metal layer.
  • the document CH-A-389 472 describes a ski comprising as reinforcement a metal sheet narrower than the body of the ski.
  • the object of the present invention is to find a way to impart a certain residual elasticity to the parts of the ski constituting a transition zone between the body and the tip on the one hand, between the body and the heel on the other hand.
  • the metal sheet or the fenille composed of high resistance fibers is narrower than the body of the ski and has ends whose width decreases until it ends in a point on the side of the heel than on the side of the and the core of the ski has at least one imprint into which is inserted the metal sheet or the sheet made of high strength fibers.
  • the depth of the imprint is equal to the thickness of the metal sheet and of the sheet of high strength fibers, and its width and shape exactly corresponding to the width and shape of said sheet, the fabric layers glass impregnated with resin which are placed on the metal sheet on the sheet of high strength fibers covering the surface thereof and also adheres to the part of the face of the core having the imprint all around the metal sheet sheet of high resistance fibers as well as on the transition zones between the body of the ski and the heel on the one hand, between the body and the tip on the other hand, the point ends of the metal sheet being located in these zones that they do not exceed.
  • the ski according to the invention is characterized in that it is constituted by the combination in a same ski of a metallic structure composed of two metallic sheets placed on either side of the core at least one being inserted into an imprint thereof, on the one hand, and of a plastic structure, glass fiber fabrics and resins, on the other hand and by the fact that the geometry of the metallic structure is triangular in the transition zones between the body of the ski and the tip on one side, between the body and the heel on the other side.
  • the metal sheet or the sheet of high resistance fibers is narrower than the body of the ski, it has ends whose width decreases until it ends in a point both on the side of the tip and on the side of the heel so that the mechanical characteristics that said sheet imparts to the different parts of the ski provide more stiffness at the level of the body of the ski than at the level of the heel and the tip, the progressive reduction in the width of said sheet ensuring a gradual variation of said characteristics in the zones transition thus created, between the ski body on the one hand, the heel and the tip on the other.
  • an imprint is made in the core, the difference in width existing between the sheet and the core allows glass fabrics impregnated, with refusal, of wet resin, to be in contact with the core over the entire edge of the imprint.
  • portions of elastomer sheets coated on both sides with wet resin are put in place both to compensate for the level differences between the strata on the one hand, and to improve the insertion of said metal parts between the glass fabrics impregnated with resin which separate over their entire surface the different strata constituting the ski, d 'somewhere else.
  • the main advantages presented by the skis thus manufactured reside in a constitution which allows their adaptation to the different states of snow, groomed, icy or powdery, that the skier encounters.
  • the cover is put in place and the mold is placed in a press where, under an adequate pressure and temperature, the resin will undergo polymerization which gives the skis their final cohesion.
  • the core of the ski comprises at least one imprint which is produced during the separate molding of the core.
  • the depth of this imprint is equal to the thickness of the metal sheet housed therein, its width and shape corresponding exactly to the width and shape of said sheet, so that the glass fabric impregnated with resin, placed on the core, adheres directly over the entire periphery of the imprint, in particular on the edges of the core on either side of the metal sheet, and, in the transition zones between the body of the ski and the heel of on the one hand, between the body of the ski and the tip on the other.

Abstract

This method of manufacturing laminated skis by the so-called wet process consists in incorporating at least one metal blade or a sheet of high-strength fibres among the strata, the width of the blade or sheet being inferior to that of the ski, and the width of its ends decreases gradually to a point in the transitional area between the heel and body and also in the transitional area between the body and the tip of the ski.

Description

L'invention concerne un ski stratifié comportant un noyau et des strates en tissu de verre, avec incorporation d'au moins une feuille métallique ou d'une feuille composée de fibres de haute résistance.The invention relates to a laminated ski comprising a core and layers of glass fabric, with the incorporation of at least one metal sheet or of a sheet composed of fibers of high resistance.

Le document FR-A-2 471 794 décrit un ski qui se compose d'une éme, d'une nappe supérieure, d'une nappe inférieure, d'au moins une lame de métal sous la nappe supérieure et/ou au-dessus de la nappe inférieure, caractérisé en ce que la nappe supérieure et/ou la nappe inférieure présentent une couche profilée en métal.Document FR-A-2 471 794 describes a ski which consists of a thimble, an upper ply, a lower ply, at least one metal blade under the upper ply and / or above of the lower ply, characterized in that the upper ply and / or the lower ply have a profiled metal layer.

Le document CH-A-389 472 décrit un ski comportant en renfort une feuille métallique plus étroite que le corps du ski.The document CH-A-389 472 describes a ski comprising as reinforcement a metal sheet narrower than the body of the ski.

Le document US-A-2 526 137 décrit un ski comportant une feuille métallique présentant des extrémités triangulaires.Document US-A-2,526,137 describes a ski comprising a metal sheet having triangular ends.

Le but de la présente invention consiste à trouver un moyen de conférer une certaine élasticité rémanente aux parties du ski constituent une zone de transition entre le corps et la spatule d'une part, entre le corps et le talon d'autre part.The object of the present invention is to find a way to impart a certain residual elasticity to the parts of the ski constituting a transition zone between the body and the tip on the one hand, between the body and the heel on the other hand.

A cette fin, la feuille métallique ou la fenille composée de fibres de haute résistance, est plus étroite que le corps du ski et présente des extrémités dont la largeur diminue jusqu'à se terminer en pointe lant du côté du talon que du côté de la spatale et le noyau du ski comporte au moins une empreinte dans laquelle est-insérée la feuille métallique ou la feuille composée de fibres de haute résistance. La profondeur de l'em preinte est égale à l'épaisseur de la feuille métallique en de la feuille en fibres de haute résistance, et sa largeur et sa forme correspondant exactement à la largeur et à la forme de ladite feuille, les strates en tissu de verre imprégné de résine qui sont placés sur la feuille métallique on la feuille en fibres de haute résistance couvrant la surface de celle-ci et adhérent également sur la partie de la face du noyau comportant l'empreinte tout autour de la feuille métallique on la feuille en fibres de haute résistance ainsi que sur les zones de transition entre le corps du ski et le talon d'une part, entre le corps et la spatule d'autre part, les extrémités en points de la feuille métallique étant situées dans ces zones de transition qu'elles ne dépassant pas.To this end, the metal sheet or the fenille composed of high resistance fibers is narrower than the body of the ski and has ends whose width decreases until it ends in a point on the side of the heel than on the side of the and the core of the ski has at least one imprint into which is inserted the metal sheet or the sheet made of high strength fibers. The depth of the imprint is equal to the thickness of the metal sheet and of the sheet of high strength fibers, and its width and shape exactly corresponding to the width and shape of said sheet, the fabric layers glass impregnated with resin which are placed on the metal sheet on the sheet of high strength fibers covering the surface thereof and also adheres to the part of the face of the core having the imprint all around the metal sheet sheet of high resistance fibers as well as on the transition zones between the body of the ski and the heel on the one hand, between the body and the tip on the other hand, the point ends of the metal sheet being located in these zones that they do not exceed.

De préférence, le ski selon l'invention est caractérisé par le fait qu'il est constitué par la combinaison dans um même ski d'une structure métallique composée de deux feuilles métalliques placées de part et d'autre du noyau l'une au moins étant insérée dans une empreinte de celui- ci, d'une part, et d'une structure en matière plastique, tissus en fibres de verre et résines, d'autre part et par le fait que la géométrie de la structure métallique est triangulaire dans les zones de transition entre le corps du ski et la spatule d'un côté, entre le corps et le talon de l'autre côté.Preferably, the ski according to the invention is characterized in that it is constituted by the combination in a same ski of a metallic structure composed of two metallic sheets placed on either side of the core at least one being inserted into an imprint thereof, on the one hand, and of a plastic structure, glass fiber fabrics and resins, on the other hand and by the fact that the geometry of the metallic structure is triangular in the transition zones between the body of the ski and the tip on one side, between the body and the heel on the other side.

La feuille métallique ou la feuille de fibres de haute résistance est plus étroite que le corps du ski, elle présente des extrémités dont la largeur diminue jusqu'à se terminer en pointe tant du côté de la spatule que du côté du talon de façon que les caractéristiques mécaniques que ladite feuille confère aux différentes parties du ski apportent plus de raideur au niveau du corps du ski qu'au niveau du talon et de la spatule, la diminution progressive de la largeur de ladite feuille assurant une variation progressive desdites caractéristiques dans les zones de transition ainsi créées, entre le corps du ski d'une part, le talon et la spatule d'autre part.The metal sheet or the sheet of high resistance fibers is narrower than the body of the ski, it has ends whose width decreases until it ends in a point both on the side of the tip and on the side of the heel so that the mechanical characteristics that said sheet imparts to the different parts of the ski provide more stiffness at the level of the body of the ski than at the level of the heel and the tip, the progressive reduction in the width of said sheet ensuring a gradual variation of said characteristics in the zones transition thus created, between the ski body on the one hand, the heel and the tip on the other.

Afin de compenser dans la stratification l'épaisseur desdites feuilles, une empreinte est réalisée dans le noyau, la différence de largeur existant entre la feuille et le noyau permet aux tissus de verre imprégnés, à refus, de résine humide, d'être en contact avec le noyau sur toute la bordure de l'empreinte.In order to compensate in the stratification for the thickness of said sheets, an imprint is made in the core, the difference in width existing between the sheet and the core allows glass fabrics impregnated, with refusal, of wet resin, to be in contact with the core over the entire edge of the imprint.

Dans les parties du ski, notamment, le talon et la spatule, qui comportent des pièces métalliques indépendantes et d'une surface limités, par rapport aux feuilles préciptées, des portions de feuilles d'élastomère enduites sur leurs deux faces de résine humide sont mises en place à la fois pour compenser les différences de niveau entre les strates d'une part, et pour améliorer l'insertion desdites pièces métalliques entre les tissus de verre imprégnés de résine qui séparent sur toute leur surface les différentes strates constituant le ski, d'autre part.In the parts of the ski, in particular, the heel and the tip, which include independent metal parts and of a limited surface, compared to the preciptated sheets, portions of elastomer sheets coated on both sides with wet resin are put in place both to compensate for the level differences between the strata on the one hand, and to improve the insertion of said metal parts between the glass fabrics impregnated with resin which separate over their entire surface the different strata constituting the ski, d 'somewhere else.

Les principaux avantages présentés par les skis ainsi fabriqués résident dans une constitution qui° permet leur adaptation aux différents états de la neige, damée, glacée ou poudreuse, que rencontre le skieur.The main advantages presented by the skis thus manufactured reside in a constitution which allows their adaptation to the different states of snow, groomed, icy or powdery, that the skier encounters.

D'autres avantages ressortiront de la description de formes de réalisation faites à titre d'exemples non limitatifs et du dessin dans lequel

  • la figure 1 est une vue à plat d'un ski avec délimitation des zones dont il est fait état dans la description.
  • la figure 2 est une vue en coupe.
  • la figure 3 est une vue éclatée d'une variante non revendiquée.
Other advantages will emerge from the description of embodiments made by way of nonlimiting examples and from the drawing in which
  • Figure 1 is a flat view of a ski with delimitation of the areas which is mentioned in the description.
  • Figure 2 is a sectional view.
  • Figure 3 is an exploded view of an unclaimed variant.

Le procédé de fabrication des skis stratifiés par voie humide est rappelé succintement ci-après:The process for manufacturing wet laminated skis is briefly described below:

On place successivement dans un moule présentant intérieurement les dimensions et la forme de deux skis identiques prêts à l'usage, le couvercle étant enlevé:

  • la semelle 6 des skis placée contre le fond du moule dont elle occupe toute la surface à l'exclusion de la lisière périphérique occupée par les carres.
  • les carres métalliques.
  • au moins une feuille de tissu de verre 8 imprégnée à refus de résine humide,
  • une feuille métallique 5B de largeur inférieure à celle du ski de façon qu'elle s insère facilement entre les carries, laissant une zone 50 permettant à la résine de fluer,
  • des portions de feuilles d'élastomère enduites de résine humide destinées à compenser les différences de niveau aux endroits où la feuille métallique ne receouvre pas la semelle: zones de transition entre le corps du ski et, respectivement, la spatule et le talon,
  • au moins une feuille de tissu 8 de verre imprégnée de résine humide,
  • un noyau composé de trois parties, deux baguettes latérales 10 de largeur constante munies des chants 11 du ski en matière plastique dure incorporés au moment du moulage séparé dudit noyau, une poutre centrale 9 dont la largeur épouse la forme du ski, ladite poutre centrale étant placée après une feuille de tissu de verre 8 imprégnée de résine humide de façon qu'elle serve de clef et pousse les baguettes latérales contre les parois du moule,
  • le talon métallique est mis en place entre des feuilles d'élastmomère enduites de résine humide, en bout du noyau et de la feuille métallique avec laquelle il n'est pas en contact,
  • au niveau de la spatule une feuille métallique est mise en place entre des feuilles d'élastomère enduites de résine humide, en bout du noyau et de la feuille métallique du corps avec lesquels la feuille métallique de la spatule n'est pas en contact,
  • au moins une feuille de tissu de verre imprégnée de résine humide est mise en place et recouvre toute la surface du ski du talon à la spatule compris,
  • une deuxième feuille métallique 5A de largeur inférieure à celle du ski est mise en place sur le noyau recouvert de tissu de verre de façon que ses extrémités ne débordent pas bors du noyau, ni sur le talon, ni sur la spatule,
  • au moins une feuille de tissu de verre 8 imprégnée de résine humide est mise en place de façon qu'elle recouvre toute la surface du ski, notamment les parties du noyau qui ne sont pas couvertes par le deuxième feuille métallique 5A,
  • une feuille de dessus 12 en matière plastique résistante à l'abrasion qui comporte, sur sa face placée contre le noyau, une empreinte ayant la forme et les dimensions de la deuxième feuille métallique 5B sur laquelle cette feuille de dessus 12 est placée de façon que cette empreinte compense la différence de niveau dûe à la deuxième feuille métallique 5A qui est ainsi enchassée dans la feuille de dessus dont les bords sont en contact, par tissu de verre interposé, avec le noyau.
One places successively in a mold having internally the dimensions and the shape of two identical skis ready for use, the cover being removed:
  • the sole 6 of the skis placed against the bottom of the mold, of which it occupies the entire surface excluding the peripheral edge occupied by the edges.
  • metal edges.
  • at least one sheet of glass fabric 8 impregnated with refusal of wet resin,
  • a metal sheet 5B of width less than that of the ski so that it is easily inserted between the carries, leaving an area 50 allowing the resin to creep,
  • portions of elastomeric sheets coated with wet resin intended to compensate for differences in level at the places where the sheet metallic does not receive the sole: transition zones between the body of the ski and, respectively, the tip and the heel,
  • at least one sheet of glass fabric 8 impregnated with wet resin,
  • a core composed of three parts, two lateral rods 10 of constant width provided with the edges 11 of the ski of hard plastic material incorporated at the time of the separate molding of said core, a central beam 9 whose width matches the shape of the ski, said central beam being placed after a sheet of glass fabric 8 impregnated with wet resin so that it serves as a key and pushes the side strips against the walls of the mold,
  • the metal bead is placed between sheets of elastomer coated with wet resin, at the end of the core and of the metal sheet with which it is not in contact,
  • at the level of the spatula, a metal sheet is placed between sheets of elastomer coated with wet resin, at the end of the core and of the metal sheet of the body with which the metal sheet of the spatula is not in contact,
  • at least one sheet of glass fabric impregnated with wet resin is put in place and covers the entire surface of the ski from the heel with the spatula included,
  • a second metal sheet 5A of width less than that of the ski is placed on the core covered with glass fabric so that its ends do not project over the core, neither on the heel, nor on the tip,
  • at least one sheet of glass fabric 8 impregnated with wet resin is placed so that it covers the entire surface of the ski, in particular the parts of the core which are not covered by the second metal sheet 5A,
  • an abrasion-resistant plastic top sheet 12 which has, on its face placed against the core, an imprint having the shape and dimensions of the second metal sheet 5B on which this top sheet 12 is placed so that this imprint compensates for the difference in level due to the second metal sheet 5A which is thus encased in the topsheet whose edges are in contact, by interposed glass cloth, with the core.

La couvercle est mis en place et le moule est placé dans une presse où, sous une pression et à une température adéquates, la résine subira la polymérisation qui confère aux skis leur cohésion définitive.The cover is put in place and the mold is placed in a press where, under an adequate pressure and temperature, the resin will undergo polymerization which gives the skis their final cohesion.

Dans une autre forme de réalisation, le noyau du ski comporte au moins une empreinte qui est réalisée au cours du moulage séparé du noyau. La. profondeur de cette empreinte est égale à l'épaisseur de la feuille métallique qui y est logée, sa largeur et sa forme correspondant exactement à la largeur et à la forme de ladite feuille, de façon que le tissu de verre imprégné de résine, placé sur le noyau, adhére directement sur toute la périphérie de l'empreinte, notamment sur les bords du noyau de part et d'autre de la feuille métallique, et, dans les zones de transition entre le corps du ski et le talon d'une part, entre le corps du ski et la spatule d'autre part.In another embodiment, the core of the ski comprises at least one imprint which is produced during the separate molding of the core. The depth of this imprint is equal to the thickness of the metal sheet housed therein, its width and shape corresponding exactly to the width and shape of said sheet, so that the glass fabric impregnated with resin, placed on the core, adheres directly over the entire periphery of the imprint, in particular on the edges of the core on either side of the metal sheet, and, in the transition zones between the body of the ski and the heel of on the one hand, between the body of the ski and the tip on the other.

Pour la commodité de la description, le ski représenté sur les figures 1 et 2 est divisé en quatre zones, définies ci-après:

  • le talon et la zone de transition 1 entre le talon et le corps du ski 2,
  • le corps du ski 2,
  • la zone de transition 3 entre le corps 2 et la spatule 4,
  • la spatule 4.
For the convenience of the description, the ski represented in FIGS. 1 and 2 is divided into four zones, defined below:
  • the heel and the transition zone 1 between the heel and the body of the ski 2,
  • the body of ski 2,
  • the transition zone 3 between the body 2 and the spatula 4,
  • the spatula 4.

Au moins une feuille métallique 5 ou une feuille composée de fibres de haute résistance 5 est mise en place dans le ski. Cette feulle 5 comporte deux caractéristiques importantes:

  • sa largeur est inférieure à celle du ski,
  • la largeur de ses extrémités diminue progressivement pour se terminer en pointe dans la zone de transition 1 entre le talon et le corps 2 du ski ainsi que dans la zone de transition 3 entre le corps 2 et la spatule 4.
At least one metal sheet 5 or a sheet composed of high strength fibers 5 is placed in the ski. This sheet 5 has two important characteristics:
  • its width is less than that of the ski,
  • the width of its ends gradually decreases, ending in a point in the transition zone 1 between the heel and the body 2 of the ski as well as in the transition zone 3 between the body 2 and the tip 4.

Il en résulte une rigidité du ski plus importante du corps 2 et une souplesse progressive de la zone de transition 1 entre le talon et le corps 2 du ski, ainsi que dans la zone de transition 3 entre le corps 2 et la spatule 4.This results in greater rigidity of the ski of the body 2 and a progressive flexibility of the transition zone 1 between the heel and the body 2 of the ski, as well as in the transition zone 3 between the body 2 and the tip 4.

Claims (3)

1. Laminated ski comprising a core (9, 10) and layers of glass fibre fabric (8) with incorporation of at least one metal blade (5) or one sheet consisting of high-strength fibres, characterized in that said blade (5) or sheet is narrower than the ski body (2) and has end portions of a width decreasing to a point both on the side of the heel and on the side of the tip (4), in that the core (9, 10) of the ski has at least one impression in which the metal blade (5) or the sheet of high-strength fibres is inserted, the depth of said impression being equal to the thickness of said metal blade (5) or of said sheet of high-strength fibres, its width and its shape corresponding exactly to the width and the shape of said blade or sheet, in that the layers of glass fibre fabric (8) impregnated with resin which are placed on the metal blade (5) of the sheet of high-strength fibres cover its surface and adhere also to the portion of the core face comprising said impression, round about the metal blade (5) orthe sheet of high-strength fibres as well as on the transitional zones (1, 3) between the ski body (2) and the heel on the one hand and between the body (2) and the tip (4) on the other hand, the pointed ends of the metal blade being positioned in the transitional zones which they do not protrude.
2. Laminated ski according to claim 1, characterized in that it consists of a combination-in the same ski-of metallic structure composed of two metal blades (5A, 5B) or two sheets consisting of high-strength fibres placed on both sides of the core (9, 10), at least one of said blades or sheets being positioned in the impression of the core, on the one hand, and of a structure of synthetic resin on the other hand, and in that the geometry of the metallic structure is triangular in the transitional zones (1, 3) between the ski body (2) and the tip (4) on the one hand and between the body and the heel on the other hand. !donl 'engtt
3. Laminated ski according to claim 2, characterized in that the topmost, abrasion-resistant sheet (12) of the ski consisting of synthetic resin comprises on its face engaging the core (9, 10) an impression having the configuration and dimensions of the second metal blade (5A) or of the second sheet of high-strength fibres, in that the depth of said impression will compensate the depth of the metal blade (5A) and in that the edges of the topmost sheet (12) in which this second metal blade is embedded, are in contact through the inserted glass fibre fabric with said core.
EP84200260A 1983-03-04 1984-02-24 Laminated ski with incorporation of metal sheets Expired EP0120521B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84200260T ATE39624T1 (en) 1983-03-04 1984-02-24 LAYERING SKI WITH INSTALLATION OF METALLIC FOIL.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8304261 1983-03-04
FR838304261A FR2541904B1 (en) 1983-03-04 1983-03-04 PROCESS FOR MANUFACTURING LAMINATE SKIS WITH INCORPORATION OF METAL SHEETS AND SKIS ACCORDING TO THE PROCESS

Publications (2)

Publication Number Publication Date
EP0120521A1 EP0120521A1 (en) 1984-10-03
EP0120521B1 true EP0120521B1 (en) 1989-01-04

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EP84200260A Expired EP0120521B1 (en) 1983-03-04 1984-02-24 Laminated ski with incorporation of metal sheets

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US (1) US4667977A (en)
EP (1) EP0120521B1 (en)
AT (1) ATE39624T1 (en)
DE (1) DE3475876D1 (en)
FR (1) FR2541904B1 (en)

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US2526137A (en) * 1948-05-24 1950-10-17 Everett M Hunt Ski
CH385692A (en) * 1961-04-14 1964-12-15 Elmac Ski Ges ski
CH389472A (en) * 1961-05-10 1965-03-15 Wey Alfred Plastic skis
US3771805A (en) * 1970-02-19 1973-11-13 Nippon Musical Instruments Mfg Ski body
AT315693B (en) * 1970-06-04 1974-06-10 Benner Ohg K Plastic skis
US3933362A (en) * 1974-03-25 1976-01-20 Nippon Gakki Seizo Kabushiki Kaisha Ski having a hollow core
FR2267129A1 (en) * 1974-04-09 1975-11-07 Lacroix Daniel Method of mfg composite skis - uses multiple sections covered by glass sheets and joined in mould
CH604768A5 (en) * 1975-06-20 1978-09-15 Rossignol Sa
FR2405075A1 (en) * 1977-10-07 1979-05-04 Karhu Titan Oy Forming ski by densifying foamed envelope at surface - dispensing with laminated sections for sole, sides, and top
AT366919B (en) * 1979-12-17 1982-05-25 Kaestle Gmbh SKI
US4409287A (en) * 1981-06-09 1983-10-11 Harrison Thomas B Ski protective device

Also Published As

Publication number Publication date
US4667977A (en) 1987-05-26
DE3475876D1 (en) 1989-02-09
FR2541904A1 (en) 1984-09-07
ATE39624T1 (en) 1989-01-15
FR2541904B1 (en) 1985-07-26
EP0120521A1 (en) 1984-10-03

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