EP0581098B1 - Verfahren zur Herstellung eines Skis - Google Patents

Verfahren zur Herstellung eines Skis Download PDF

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Publication number
EP0581098B1
EP0581098B1 EP93111116A EP93111116A EP0581098B1 EP 0581098 B1 EP0581098 B1 EP 0581098B1 EP 93111116 A EP93111116 A EP 93111116A EP 93111116 A EP93111116 A EP 93111116A EP 0581098 B1 EP0581098 B1 EP 0581098B1
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EP
European Patent Office
Prior art keywords
mold
core
foam
subassembly
process according
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Expired - Lifetime
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EP93111116A
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English (en)
French (fr)
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EP0581098A1 (de
Inventor
Philippe Renard
Jean-Marie Cazaillon
Yves Gagneux
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Salomon SAS
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Salomon SAS
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/12—Making thereof; Selection of particular materials
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T156/00—Adhesive bonding and miscellaneous chemical manufacture
    • Y10T156/10—Methods of surface bonding and/or assembly therefor
    • Y10T156/1002—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina
    • Y10T156/1028—Methods of surface bonding and/or assembly therefor with permanent bending or reshaping or surface deformation of self sustaining lamina by bending, drawing or stretch forming sheet to assume shape of configured lamina while in contact therewith
    • Y10T156/103—Encasing or enveloping the configured lamina

Definitions

  • the present invention relates to a method of manufacturing skis used in winter sports, and intended to slide on snow and ice such as alpine skis, monoskis and snowboards.
  • the structure generally comprises decorative and peripheral protection elements, forming the upper face and the lateral faces of the ski, internal resistance elements or resistance blades, made of a material having high mechanical strength and great stiffness.
  • the structure also includes filling elements such as a honeycomb core, a sliding sole forming the underside of the ski and ensuring good sliding on the snow, and metal edges forming the lower edges of the ski.
  • the manufacture of modern skis therefore uses very diverse materials: the gliding soles are generally made of polyethylene, the cellular cores are made of synthetic foam, the edges are made of steel, the upper surfaces of the ski are made of thermoplastic sheets, the resistance blades are metal or resin plates reinforced with fibers.
  • a ski is subjected to severe mechanical stresses, requiring good adhesion between the various materials constituting the structure.
  • the cores are prefabricated in their final configuration by machining. They then undergo a surface treatment by sanding or sanding so as to be able to adhere with the adhesive constituting the matrix of the internal resistance elements, generally of the epoxy type.
  • the assembly of the core with the other elements of the ski is generally done during a subsequent molding step.
  • the core of a ski is an essential element since it contributes to flexural rigidity and ensures filling of the spaces between the various internal resistance elements, upper, lower and lateral.
  • the forms of modern skis have also evolved a lot to allow an improvement in the qualities of behavior, gliding or simply aesthetic. This is how skis with inclined, convex or concave side edges appeared, or skis with reliefs on their upper surface, etc.
  • the shape of the cores has evolved with these new forms of skis and the traditional manufacturing method comprising stages of machining and surface preparation now turns out to be unsuitable, expensive and complex.
  • its implementation leads to many problems.
  • the machining step destroys the thin surface layer of higher density of the synthetic cores (what specialists call the "skin" of the core).
  • the geometry is not reproducible from one nucleus to another.
  • Document FR-A-2 627 700 relates to a method of assembling a ski by welding in which the core of synthetic foam is covered with a film of thermoplastic material. This advantageously eliminates the surface preparation operations of the core.
  • the object of the present invention is to avoid the drawbacks of known methods, by proposing a new method making it possible, in a minimum number of steps, to manufacture the core, without a surface preparation operation, and to on the other hand the positioning and assembly of all the elements around the core to obtain the ski.
  • the qualities of adhesion of the core to the other elements of the ski can be easily adapted according to the nature of these elements.
  • the prefabricated core is easy to handle and perhaps stored before use.
  • the method of the invention comprises a first step of preparing a solid core of synthetic foam and a second step of assembling the core with the various elements constituting the ski.
  • the first step consists in injecting or pouring into a mold having the final shape of the core to be obtained, the components of a hardenable and expandable foam.
  • a solid bonding film having good adhesion properties with the foam as well as with the elements intended to come into contact during the second assembly step, is placed against the walls of said mold.
  • Figure 1 shows in cross section a ski (1) obtained according to the method of the invention. It consists of the following three main parts: a core (2), a first lower sub-assembly (3) and a second upper sub-assembly or shell (4) covering the core (2).
  • the lower sub-assembly (3) comprises a sliding sole (30), such as in polyethylene, lateral metal edges (31) and an internal element of lower mechanical resistance (33), consisting of one or more layers of reinforcement (330, 331) of composite or metallic material, such as aluminum alloy for example.
  • the upper sub-assembly (4) comprises one or more decorative and protective layers (40), generally made of thermoplastic material which may consist of a polyurethane, a polycarbonate, a polyamide or polyamide or other copolymer.
  • the upper sub-assembly (4) may also include an internal upper mechanical resistance element (41) consisting of one or more reinforcing layers.
  • the upper sub-assembly (4) constitutes a shell covering the upper face (20) as well as the two lateral faces (21, 22) of the core (2).
  • the core is made of injected thermosetting synthetic foam and is surrounded by a bonding film (5) based on polymer bonding between the core and the elements in contact with it and in particular the elements of lower mechanical resistance (33) and above (41).
  • the film can overflow on each side of the lower face (23) of the core to ensure the joining of the edges (42, 43) of the upper sub-assembly (4) with the lower sub-assembly (3).
  • FIG. 2 to 4 the first step of preparing the solid core of synthetic foam according to a first embodiment.
  • a mold (6) is provided for this in the shape and dimensions of the core (2) to be produced.
  • the first operation consists in producing in this mold, a closed tubular compartment consisting of the adhesive bonding film (5) based on polymer.
  • a first film (50) projecting on either side of the joint plane (61) is deposited in the interior cavity formed in the lower shell (60) of the mold (6).
  • a second film (51) is placed under tension on the wall of the upper shell (62) of the mold; the second film also overflowing on either side of the joint plane.
  • We close the mold the lateral ends of each film being pinched against each other in the joint plane (61) to form a burr (70).
  • the low pressure injection or the gravity casting of the constituents of a curable foam such as a polyurethane foam, a polyurea foam or a phenolic foam is carried out using inside the tubular compartment (7) thus formed.
  • the foam (8) pushes back the tubular membrane which comes to marry perfectly the walls of the mold. The core is then removed from the mold.
  • the foams used have a content of crosslinking polyol groups greater than or equal to 30% by mass of the total polyol content.
  • This chemical characteristic gives the foam an improvement in the properties of resistance to hot compression; properties particularly sought after in the implementation of the process of the invention.
  • the foams used can also be loaded with short glass fibers.
  • the fiber content is of the order of 0 to 30% by mass relative to the total mass of the mixture.
  • the mold is heated to a temperature of between 30 and 80 ° C. approximately.
  • the exothermic reaction crosslinking of the foam is greater than 100 ° C. and can lead to an increase in the temperature of the mold of the order of 20 to 30 ° C., for a few minutes. At these temperatures, the adhesion of the foam to the membrane is perfectly achieved. Demoulding is also carried out hot.
  • this variant requires to implement the casting manually. It is generally done by an operator who uses a pouring gun connected to a low pressure pump; itself connected to the various component tanks.
  • the establishment and maintenance of the films (50, 51) on the walls of the mold is facilitated if a vacuum is created between the film and the walls of the mold thanks to orifices (63 ) provided through the mold and connected to a vacuum pump.
  • Figures 7 and 8 illustrate a particular mode of the second step of assembling the core (2) with the various elements constituting the ski.
  • a second mold (9) is provided in two parts (90, 91), the shape and dimensions of which correspond to those of the ski which it is desired to produce.
  • the elements constituting the lower sub-assembly (3) are placed in the lower part (90) of the mold (9).
  • This sub-assembly comprises a sliding sole (30) made of polyethylene, the lateral steel edges (31) and a lower mechanical resistance element (33) consisting of two reinforcing layers (330, 331).
  • the reinforcing layers may be formed from textile layers of glass fibers or carbon pre-impregnated with thermosetting resin or thermoplastic, for example. It is also possible to use textile tablecloths with an already polymerized thermosetting resin matrix or metallic strips of steel or aluminum.
  • the elements constituting the lower sub-assembly (3) can be assembled and joined together before they are placed in the mold. But it can be provided that the molding operation makes it possible to secure these elements together and in particular, the reinforcing layers on the sliding sole and the edges.
  • the core is placed in the first part of the mold (90), so that its lower face (23) rests on the lower sub-assembly (3).
  • the elements constituting the second upper sub-assembly (4) are then placed on the upper face (20).
  • the sub-assembly is deposited in a planar configuration and can be kept centered by any suitable means.
  • the upper sub-assembly (4) is produced by stacking one or more layers including at least one protective and decorative layer (40).
  • This layer is intended to form the top of the ski. It is made of thermoplastic material such as polyurethane, polyamide PA11, PA12, PA6, PA6 / 6 or other, styrenic type ABS - SAN, polystyrene, block copolymer styrenic, or other, polypropylene, polycarbonate, acrylic material, polyester type PET or PBT, possibly modified. It can also be agreed that the top consists of several layers of the materials mentioned, in particular when the top is decorated by sublimation and must therefore comprise an opaque lower layer revealing the decoration and a transparent upper layer carrying the decoration. The top is cut in such a way that it covers the upper face (20) and the lateral faces (21, 22) of the core (2).
  • the upper sub-assembly also includes a mechanical resistance element (41) comprising one or more reinforcing layers.
  • a mechanical resistance element (41) comprising one or more reinforcing layers.
  • textile reinforcing plies based on woven or non-woven fibers of glass, polyethylene carbon, kevlar or liquid crystal polymers (LCP), impregnated with a wet or non-tacky thermosetting resin, in a non-polymerized state chosen from the group consisting of polyester, epoxy and polyurethane or else a thermoplastic resin chosen from the group consisting of polyamides, polycarbonates, PEIs (Polyether Imides), PPS, polypropylenes, and LCP.
  • LCP liquid crystal polymers
  • the reinforcing layer can also cover the core to form, after crosslinking, a shell of mechanical resistance in direct support on the ski edges. It is also possible to provide for reinforcing the upper sub-assembly with simple metal blades or fiber reinforcements with a crosslinked resin matrix and substantially the same width as that of the upper face (20) of the core.
  • the second upper part (91) of the mold comprising the imprint of the external shape of the ski to be produced, is brought closer to the first lower part (90) for closing.
  • the core (2) is used to deform the upper sub-assembly (4) which is pressed against the walls of the cavity of the upper part of the mold.
  • the sub-assembly can be heated separately and beforehand by infrared, for example. But it is also possible, after preheating the mold (9), place the upper part (91) of the mold against the upper sub-assembly and it is the heat of the mold transmitted by conduction or radiation which will soften said sub-assembly to allow its deformation.
  • a temperature of approximately 100 ° to 160 ° C. is maintained for 3 to 15 minutes to allow the crosslinking of the prepreg materials and the adhesion of the bonding film (5) to the elements surrounding the core (2 ). After hardening, you can get out of the mold, the ski in its final state.
  • the membranes forming the tubular element (7) are made of a film of material chosen for its adhesion properties with on the one hand the foam constituting the core and on the other hand the walls of the peripheral elements against which the membrane must 'apply and stick.
  • Polyurethane films, copolyamide films, ABS (Acrylonitrile Butadiene Styrene) films, copolymers of ethylene or modified EVA can advantageously be used.
  • the films can have a thickness of a few hundredths to a few tenths of a millimeter, advantageously from one to ten tenths of a millimeter.
  • FIG. 9 shows an example of a complex shape of nucleus that can be produced according to the method.
  • the distance (l) between the upper (20) and lower (23) core surface can change to give the ski a variable thickness.
  • the width (L) of the lower face (23) can be of variable width to give the ski its sideline.
  • the lateral surfaces (21, 22) can be inclined relative to the lower surface (23) by an angle (A) variable along the core to obtain, in the same way on the finished ski, inclined lateral edges.
  • FIG. 10 shows a ski obtained from such a core where the parameters (l ', L', A ') of the ski correspond to (l, L and A) of the core and vary along the ski.
  • Figures 11 and 12 show a particular embodiment of the core comprising upper (410) and / or lower (332) mechanical resistance elements.
  • these elements are inserted inside the mold (6) after the films (50, 51) have been placed on the walls of the mold and before the injection or casting operation of the foam.
  • the elements may consist of reinforcing layers of the same kind as those previously described. They can complete the reinforcement of the lower (33) and upper (41) sub-assemblies, or even replace the mechanical resistance elements of the ski sub-assemblies (3, 4).
  • FIG. 13 is a particular embodiment of the invention in which the tubular compartment (7) is produced from a tubular membrane closed in a single deformable and extensible piece.
  • the injection of the foam is carried out in the same way inside the membrane and the injection pressure ensures the extension and the pressing of the membrane against the walls of the mold (6).
  • Figures 14 to 16 show an exemplary embodiment of a rib (400) on the upper surface of the ski according to the method of the invention.
  • a rib 400
  • To obtain the rib it is necessary to initially provide a hollow (601) in the lower shell (60) of the mold (6) which will be filled by the foam during the injection of the core.
  • the core thus removed from the mold has a rib (200) on its upper surface (20).
  • the rib of the core will deform the upper sub-assembly inside a hollow (910) of complementary shape provided in the upper part (91) of the mold (9 ) ski.
  • FIG. 17 shows conversely, the possibility of being able to produce, according to the method, a protrusion (401) on the upper surface of the ski by providing a protrusion (201) of substantially greater dimension on the core during the implementation of the first injection step.
  • the core may include on each lower edge a groove (202) which will be provided during the implementation of the first step of the method.
  • This groove (202) cooperates with a lateral rim (300) of the lower sub-assembly (3) to allow better holding and centering of the core during the second step of the process (FIG. 19).
  • Figures 20 and 21 show a variant of the process and more particularly of the second step of assembling the core with the elements constituting the ski.
  • the second sub-assembly is preformed before its introduction into the assembly mold (9, 90, 91).
  • the upper sub-assembly (4) is arranged in the second mold (9, 90, 91) in a planar or substantially planar configuration and it is the core (2) which serves to deforming said sub-assembly (4) which is pressed against the walls of the cavity of the upper part (91) of the mold.
  • the purpose of the preforming operation is to arrange the sub-assembly (4) in a geometric configuration close to that which one wishes to give to the ski, in the end. It is in fact a question of obtaining a draft of the shape of the top of the ski.
  • this operation consists in pressing the sub-assembly into a mold (92) to give it a first geometric configuration (blank).
  • This operation takes place cold when the reinforcing elements (41) are based on a matrix of thermosetting resin. It can take place when the reinforcing elements are exclusively based on a matrix of thermoplastic resin.
  • the upper sub-assembly (4) thus preformed is placed on the core formed during the first step.
  • the upper faces (20) and the lateral faces (21, 22) of the core are covered by the internal upper faces (44) and the internal lateral faces (45, 46) respectively of the preformed sub-assembly (4).
  • the actual operation of final forming and assembling of the elements is obtained in the second mold (90, 91) (FIG. 21) by pressing and adding heat. It is the shape of the core which gives the upper subset its final configuration.
  • the core is provided with two lateral ribs (203, 204) which will make it possible to obtain two lateral ribs (402, 403) on the top of the ski after demolding and deburring of the sides of the sub-frame. assembly (4) (figure 22). Preforming is recommended when the final shapes to be obtained are complex and / or very angular.

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  • Injection Moulding Of Plastics Or The Like (AREA)
  • Golf Clubs (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Laminated Bodies (AREA)

Claims (15)

  1. Verfahren zur Herstellung eines Ski, das einen ersten Schritt der Vorbereitung eines festen Kernes aus synthetischem Schaum und einen zweiten Schritt des Zusammenbaus des Kerns mit den unterschiedlichen Elementen, die den Ski bilden, aufweist, wobei der erste Schritt darin besteht, in eine Form (6, 60, 62), die die endgültig zu erhaltende Form des Kernes (2) hat, Bestandteile eines härtbaren und ausdehnbaren Schaumes (8) einzuspritzen oder zu gießen, und im Verlauf dessen eine feste Klebeschicht (5), die gute Hafteigenschaften mit dem Schaum sowie mit den Elementen aufweist, die in Kontakt während dem zweiten Schritt des Zusammenbauens kommen sollen, gegen die Wände der Form angeordnet ist, dadurch gekennzeichnet, daß in einem zweiten Schritt man die Folge der folgenden Arbeitsschritte ausführt:
    - man ordnet in einer ersten Hälfte (90) einer zweiten Form (9) die Elemente an, die eine erste untere Untereinheit (3) bilden, und die zumindest aufweist:
    - eine Gleitsohle (30),
    - und metallische seitliche Kantenleisten (31);
    - man bringt auf diese erste Untereinheit die untere Seite (23) des Kernes (2), der bei dem ersten Schritt geformt worden ist,
    - man ordnet auf dem Kern (2) eine zweite obere Untereinheit (4) an, die dazu bestimmt ist, bei dem späteren Arbeitsschritt des Formens die obere Seite (20) und die seitlichen Seiten (21, 22) des Kerns zu überdecken, wobei die Untereinheit (4) zumindest eine Schicht (40) zur Dekoration und zum Schutz aufweist,
    - man führt den Schritt des eigentlichen Formens aus, indem man den Kern (2) zum Deformieren der zweiten oberen Untereinheit (4) im Inneren der zweiten Hälfte der Form (91) verwendet.
  2. Verfahren zur Herstellung gemäß Anspruch 1, dadurch gekennzeichnet, daß der erste Schritt die Folge der folgenden Arbeitsschritte aufweist:
    - man realisiert in dem inneren Raum der Form (6) ein röhrenförmiges geschlossenes Abteil, das aus der festen Schicht (5) gebildet ist,
    - man geht zum Einspritzen oder Gießen von Bestandteilen des Schaumes (8) in das so gebildete röhrenförmige geschlossene Abteil (7) über, wobei sich der Schaum in dem Innenraum der Form ausdehnt, um die feste Schicht (5) gegen die Wände der Form zu drücken,
    - man geht zum Entformen des so geformten Kernes (2) über.
  3. Verfahren zur Herstellung gemäß Anspruch 1, dadurch gekennzeichnet, daß der erste Schritt die Folge der folgenden Arbeitsschritte aufweist:
    - man ordnet in dem inneren Hohlraum (600), der in einer unteren Schale (60) der Form (6) ausgenommen ist, eine erste Schicht (50) an,
    - man geht dann zum Gießen der Bestandteile des Schaumes (8) in das Innere des Hohlraumes (600) über,
    - man verschließt vor dem vollständigen oder teilweisen Ausdehnen des Schaumes die Form, indem man auf der unteren Schale (60) eine obere Schale (62) aufbringt, auf der zuvor unter Spannung eine zweite Schicht (51) angeordnet worden ist,
    - man geht nach dem Ausdehnen des Schaumes im Inneren der Form zu dem Entformen des so geformten Kernes über.
  4. Verfahren zur Herstellung gemäß einem der Ansprüche 2 oder 3, dadurch gekennzeichnet, daß die oberen (410) und/oder unteren (332) mechanischen Widerstandselemente in das Innere der Form (6) nach der Anordnung der Schichten (50, 51) und vor dem Arbeitsschritt des Einspritzens oder Gießens des Schaumes eingefügt werden.
  5. Verfahren gemäß Anspruch 4, dadurch gekennzeichnet, daß man in einem zweiten Schritt die Folge der folgenden Arbeitsschritte ausführt:
    - man ordnet in der ersten Hälfte (90) einer zweiten Form (9) die Elemente an, die eine erste untere Untereinheit (3) bilden, und die zumindest aufweist:
    - eine Gleitsohle (30),
    - und seitliche metallische Kantenleisten (31);
    - man bringt auf dieser ersten Untereinheit die untere Seite (23) des Kernes (2), der bei dem ersten Schritt geformt worden ist, auf,
    - man ordnet auf dem Kern (2) eine zweite Untereinheit (4), die in einer ersten geometrischen Konfiguration bei einem vorangehenden getrennten Arbeitsschritt vorgeformt worden ist, an,
    - man realisiert den Arbeitsschritt des definitiven Formens der zweiten Untereinheit (4) und des eigentlichen Zusammenbaus des Kernes mit jeder Untereinheit (3, 4), nachdem die zweite Hälfte (91) der Form auf der ersten Hälfte (90) geschlossen worden ist.
  6. Verfahren gemäß Anspruch 2, dadurch gekennzeichnet, daß, um das röhrenförmige Abteil (7) herzustellen,
    - man in dem inneren Hohlraum, der in der unteren Schale (60) der Form (6) ausgenommen ist, eine erste Schicht (50) anordnet, und
    - man unter Spannung eine zweite Schicht (51) auf der Wand der oberen Schale (62) der Form (6) anordnet, und
    - man die Form verschließt.
  7. Verfahren gemäß Anspruch 2, dadurch gekennzeichnet, daß das röhrenförmige Abteil (7) ausgehend von einer geschlossenen röhrenförmigen Membran aus einem einzigen deformierbaren und ausdehnbaren Teil hergestellt ist.
  8. Verfahren gemäß Anspruch 2 oder 3, dadurch gekennzeichnet, daß die seitlichen Enden jeder Schicht beidseitig über die Ebene der Verbindungsstelle (61) der Form (6) hinausragen, um einen Grat (70) zu bilden.
  9. Verfahren gemäß Anspruch 1, dadurch gekennzeichnet, daß die Schicht aus den Polyurethanen, den Copolyamiden, ABS, einem modifizierten Copolymer von Ethylen oder EVA gewählt ist.
  10. Verfahren gemaß Anspruch 4 oder 5, dadurch gekennzeichnet, daß die untere Untereinheit (3) ein inneres unteres mechanisches Widerstandselement (33) aufweist, das aus einer oder mehreren Verstärkungsschichten (330, 331) gebildet ist.
  11. Verfahren gemäß Anspruch 4 oder 5, dadurch gekennzeichnet, daß die obere Untereinheit (4) ein inneres oberes mechanisches Widerstandselement (41) aufweist, das aus einer oder mehreren Verstärkungsschichten gebildet ist.
  12. Verfahren gemäß den Ansprüchen 10 oder 11, dadurch gekennzeichnet, daß jede Verstärkungsschicht aus textilen Einlagen aus mit einem warmehärtbaren oder thermoplastischen Harz vorimprägnierten Glasfasern oder Kohlenstoffasern gebildet sein kann.
  13. Verfahren gemäß den Ansprüchen 10 oder 11, dadurch gekennzeichnet, daß jede Verstärkungsschicht aus einer metallischen Lamelle oder aus Fasern mit einer Matrix aus vernetztem Harz gebildet ist.
  14. Verfahren gemäß einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß man eine Rippe (200) auf der oberen Oberfläche (20) des Kernes bei dem Arbeitsschritt des Einspritzens realisiert, indem man einen Hohlraum (601) auf der unteren Schale (62) der Einspritzform (6) vorsieht.
  15. Verfahren gemäß einem der vorangehenden Ansprüche, dadurch gekennzeichnet, daß man einen Vorsprung (201) bei dem ersten Schritt der Einspritzung auf der oberen Oberfläche (20) des Kernes vorsieht, der dazu bestimmt ist, einen Vorsprung (401) auf der oberen Oberfläche des Ski bei dem zweiten Schritt des Zusammenbaus zu bilden.
EP93111116A 1992-07-31 1993-07-12 Verfahren zur Herstellung eines Skis Expired - Lifetime EP0581098B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9209735A FR2694201B1 (fr) 1992-07-31 1992-07-31 Procédé de fabrication d'un ski.
FR9209735 1992-07-31

Publications (2)

Publication Number Publication Date
EP0581098A1 EP0581098A1 (de) 1994-02-02
EP0581098B1 true EP0581098B1 (de) 1995-10-04

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US (1) US5449425A (de)
EP (1) EP0581098B1 (de)
JP (1) JPH06154385A (de)
AT (1) ATE128632T1 (de)
DE (1) DE69300586T2 (de)
FR (1) FR2694201B1 (de)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4325091A1 (de) * 1993-07-27 1995-02-02 Uwe Emig Aus mehreren Elementen zusammengesetzter Ski
DE4342729C2 (de) * 1993-12-15 1995-10-26 Moeller Werke Gmbh Verfahren zum Herstellen von Kunststofformteilen mit Kaschierung aus Dekormaterial
FR2720289B1 (fr) * 1994-05-31 1996-08-23 Gaillon Ski ou similaire.
FR2731159B1 (fr) * 1995-03-02 1997-04-11 Dynastar Skis Sa Procede pour la fabrication d'une planche de glisse dont la face superieure presente des evidements et planche de glisse ainsi obtenue
FR2746662B1 (fr) * 1996-03-27 1998-05-29 Salomon Sa Planche de ski entouree d'une carre continue
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Publication number Publication date
EP0581098A1 (de) 1994-02-02
FR2694201B1 (fr) 1994-09-23
US5449425A (en) 1995-09-12
DE69300586D1 (de) 1995-11-09
DE69300586T2 (de) 1996-05-15
JPH06154385A (ja) 1994-06-03
FR2694201A1 (fr) 1994-02-04
ATE128632T1 (de) 1995-10-15

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