EP0394835B1 - Procédé de fabrication de ski et ski fabriqué par ce procédé - Google Patents

Procédé de fabrication de ski et ski fabriqué par ce procédé Download PDF

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Publication number
EP0394835B1
EP0394835B1 EP90107422A EP90107422A EP0394835B1 EP 0394835 B1 EP0394835 B1 EP 0394835B1 EP 90107422 A EP90107422 A EP 90107422A EP 90107422 A EP90107422 A EP 90107422A EP 0394835 B1 EP0394835 B1 EP 0394835B1
Authority
EP
European Patent Office
Prior art keywords
ski
process according
cover layer
layer
die
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
Application number
EP90107422A
Other languages
German (de)
English (en)
Other versions
EP0394835A2 (fr
EP0394835A3 (fr
Inventor
Anton Arnsteiner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Blizzard GmbH
Original Assignee
Blizzard GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Blizzard GmbH filed Critical Blizzard GmbH
Priority to AT90107422T priority Critical patent/ATE93155T1/de
Publication of EP0394835A2 publication Critical patent/EP0394835A2/fr
Publication of EP0394835A3 publication Critical patent/EP0394835A3/fr
Application granted granted Critical
Publication of EP0394835B1 publication Critical patent/EP0394835B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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 ski manufacturing method according to the first part of claim 1 and a ski that is manufactured according to this method.
  • skis were previously made from several layers of wood, today they consist of layers of very different materials, mostly plastic, metal and possibly also wood.
  • a ski upper part is manufactured in a form specifically provided for it, which is then connected in a second process step to a ski lower part of the common type.
  • the ski top manufactured in the molding process consists, for. B. from a cover layer, a core and laterally inserted side damper layers.
  • the cover layer is shaped during the molding process in such a way that it forms flange-like edges which rest on the lower part of the ski during assembly, so that in the second process step, connecting the lower part of the ski to the upper part of the ski, an additional connection of the two parts via the flange-like edges is possible is.
  • the flange-like edges are formed in a constant width and are only brought to their final shape after removal from the mold, the excess being able to be milled away, for example. This results in the solution according to the invention for the production process, which consists in the fact that for skis which have a different profile in plan view, i.
  • This ski base can be of any type. For example, it consists of a polyethylene tread bordered by steel edges, over which a lower flange is arranged.
  • the ski top can also be prefabricated without a core and side damper layers.
  • the individually prefabricated upper part of the ski and lower part of the ski can be connected in an advantageous manner by foaming the core region of the upper part of the ski that is left free, for example with polyurethane or a similar material.
  • the prefabricated upper part of the ski is connected to the prefabricated lower part of the ski and the enclosed empty space thus formed is foamed to form the core of the ski.
  • a decorative layer is placed in the mold box of the mold below the cover layer which has a supporting function and which, of course, lies on the surface of the upper part after the upper part has been removed from the mold box.
  • the decorative layer can either cover only the surface of the upper part of the ski or the surface as well as the side edges of the upper part of the ski.
  • the process step of ski top shaping can be designed in an advantageous manner in that the cover layer consists of one or more layers which are flexible at ambient pressure and ambient temperature before the final molding process. With these flexible layers, the shape can be designed before the core and side damper layers are inserted. Covering layers made of an epoxy prepreg or a polyester prepreg of the usual commercial form are suitable for this procedure.
  • the upper part of the ski is connected to a stable molded body at suitable temperature and pressure by polymerization.
  • An alternative embodiment of the method according to the invention consists in the fact that the cover layer consists of a thermoplastic shell inserted into the mold.
  • the decorative layer can also be designed as a thermoplastic layer or thermoplastic shell.
  • a damper layer made of the most entropy-elastic material for example an elastomer
  • a ski can be produced in a simple manner which has a upper part of the ski which is trapezoidal in cross-section, the side surfaces being inclined at a constant angle.
  • Fig. 1 the molding step of the ski top 10 is shown in a form consisting of a mold box 18 and a mold cover 20.
  • a decorative layer 24 is placed on the bottom of the molding box 18.
  • This decorative layer 24 is flexible at ambient pressure and ambient temperature. It consists of an epoxy prepreg or alternatively, for example, of a polyester prepreg.
  • a cover layer 12 is placed on this decorative layer, which is also flexible at ambient pressure and temperature.
  • This cover layer is also laid along the side walls which are inclined at an angle ⁇ with respect to the vertical.
  • the still flexible cover layer 12 is then bent in such a way that it forms a flange-shaped edge 22. Since the cover layer 12 is a load-bearing layer, it is reinforced. For this purpose, fiber-proven mats or carbon inserts are used.
  • a core 14 is placed on this cover layer, which can consist of any ski building material customary for cores. For example, a foamed plastic. Between the core 14 and the laterally raised cover layer 12, triangular side damper layers 16 are inserted into the mold in cross section. These side damper layers 16 are, for example Made of an elastomer and serve to protect the core from the side.
  • the mold is closed with the mold cover 20 and, under suitable pressure and at a suitable temperature, the individual layers are polymerized with one another, so that a dimensionally stable ski upper part 10 is produced.
  • the molding box 18 is shaped according to the thickness distribution over the length of the upper part of the ski.
  • the core 14 of the upper part 10 of the ski is made thicker from the longitudinal center of the ski, i.e. exactly in the area in which the ski binding will be arranged later. Towards the center of the ski and towards the ski shovel, the thickness of the core decreases, as shown in FIG. 2.
  • the upper ski part prepared in this way is applied to a lower ski part of a conventional design (not shown) and glued to it in the usual way.
  • the upper ski part 10 can be connected to the lower ski part, not shown, along the flange 22 using conventional fastening means.
  • the lower ski part can consist, for example, of a polyethylene tread which is bordered by means of steel edges, a lower flange usually being arranged above the polyethylene tread.
  • it can also be any other lower ski part with a ski upper part 10, which according to the previously described sequence of processes was connected.
  • a ski upper part 10 is also shown in the mold 18, 20 during the molding process. According to this exemplary embodiment, however, a further substep is added to the method for producing the ski during the method step of assembling the upper ski part 10.
  • the bond area i.e. in the area on which the bond is later applied, an entropy-elastic damper layer as possible. This advantageously consists of an elastomer.
  • the length of the damping element 26 is designated by L in FIG. 4. L can typically vary in a range of 500-700 mm. The length of the area L depends on on the total length of the ski.
  • this can also be formed by leaving a corresponding empty space in place of the inserted core 14 and optionally the side damper layers 16.
  • the mold cover 20 can have a corresponding bulge (not shown in the figures).
  • This modified upper part of the ski is then connected to a lower part of the ski, at the same time the empty core area is foamed, for example with polyurethane or a similar material.

Landscapes

  • Laminated Bodies (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Electron Tubes For Measurement (AREA)
  • Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)

Claims (16)

  1. Procédé pour la fabrication d'un ski, comprenant les étapes consistant à :
    - former une partie supérieure de ski (10) constituée au moins d'une couche de recouvrement (12) dans un moule de façon à former sur la couche de recouvrement (12) des rebords (22) en forme de bride;
    - placer une partie inférieure de ski sur la partie supérieure de ski 10, de telle sorte qu'elle coïncide dans la zone de bord avec les bords (24) en forme de bride et
    - assembler la partie supérieure de ski (10) avec la partie inférieure de ski,
       caractérisé en ce que les rebords en forme de bride (22) sont formés avec une largeur de bord constante, et en ce que les bords (22), après le retrait de la partie supérieure de ski (10) du châssis de moule (18) sont amenés dans leur forme définitive.
  2. Procédé selon la revendication 1, caractérisé en ce qu'on insère dans le châssis de moule (18) en dessous de la couche de recouvrement (12) une couche de décor (24).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'on place la couche de recouvrement (12) dans le châssis de moule (18), celle-ci étant constituée de couches qui sont flexibles à la pression ambiante et à la température ambiante avant l'étape de moulage définitive.
  4. Procédé selon la revendication 3, caractérisé en ce que la couche de recouvrement (12) est constituée d'un pré-imprégné d'époxy, dans lequel on a inséré une matière de renforcement.
  5. Procédé selon la revendication 3, caractérisé en ce que la couche de recouvrement (12) est constituée d'un pré-imprégné de polyester, dans lequel on a inséré une matière de renforcement.
  6. Procédé selon l'une des revendications 4 ou 5, caractérisé en ce que la matière de renforcement est du carbone.
  7. Procédé selon la revendication 1 ou 2, caractérisé en ce que la couche de recouvrement (12) est insérée dans le moule sous forme de coque thermoplastique.
  8. Procédé selon l'une des revendications 2 à 7, caractérisé en ce que la couche de décor (24) est placée dans le châssis de moule (18) et qu'elle est constituée de couches flexibles à la pression et température ambiantes avant l'étape de formage définitive.
  9. Procédé selon la revendication 8, caractérisé en ce que la couche de décor est constituée d'un préimprégné d'époxy.
  10. Procédé selon la revendication 8, caractérisé en ce que la couche de décor est constituée d'un préimprégné d'époxy ou d'un préimprégné de polyester.
  11. Procédé selon l'une des revendications 1 à 8, caractérisé en ce que la couche de décor (24) est placée dans le moule sous forme de coque thermoplastique.
  12. Procédé selon l'une des revendications 1 à 11, caractérisé en ce que la partie supérieure de ski (10), dans l'étape de moulage séparée, est constituée en plus de la couche de recouvrement (12) d'un noyau (14) et de couches d'amortissement latérales (16).
  13. Procédé selon l'une des revendications 1 à 11, caractérisé en ce que le noyau (14) est constitué seulement lors de l'assemblage de la partie supérieure de ski avec la partie inférieure de ski par remplissage par de la mousse, par exemple en polyuréthane ou une matière similaire.
  14. Procédé selon l'une des revendications 1 à 13, caractérisé en ce que, avant l'étape de moulage dans le moule (18,20) entre la couche de recouvrement (12) et le noyau (14) ou la couche de recouvrement (12) et l'espace qui est rempli ultérieurement comme noyau, on place et on fixe dans la zone de fixation (L) une couche d'amortissement (26).
  15. Procédé selon la revendication 13, caractérisé en ce qu'on insère comme couche d'amortissement (26) une couche en une matière si possible entropique-élastique.
  16. Ski, fabriqué selon l'une des renvendications 1 à 15, caractérisé en ce que la partie supérieure de ski (10) est trapézoïdale en section transversale, les surfaces latérales étant inclinées suivant un angle constant.
EP90107422A 1989-04-28 1990-04-19 Procédé de fabrication de ski et ski fabriqué par ce procédé Expired - Lifetime EP0394835B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90107422T ATE93155T1 (de) 1989-04-28 1990-04-19 Skiherstellungsverfahren und ski, hergestellt nach diesem verfahren.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3914189A DE3914189A1 (de) 1989-04-28 1989-04-28 Skiherstellungsverfahren und ski, hergestellt nach diesem verfahren
DE3914189 1989-04-28

Publications (3)

Publication Number Publication Date
EP0394835A2 EP0394835A2 (fr) 1990-10-31
EP0394835A3 EP0394835A3 (fr) 1991-12-18
EP0394835B1 true EP0394835B1 (fr) 1993-08-18

Family

ID=6379748

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90107422A Expired - Lifetime EP0394835B1 (fr) 1989-04-28 1990-04-19 Procédé de fabrication de ski et ski fabriqué par ce procédé

Country Status (4)

Country Link
EP (1) EP0394835B1 (fr)
JP (1) JPH0321275A (fr)
AT (1) ATE93155T1 (fr)
DE (2) DE3914189A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0757251B2 (ja) * 1991-08-15 1995-06-21 株式会社西沢 スキーの製造方法
FR2683734B1 (fr) * 1991-11-19 1994-01-07 Rossignol Sa Ski en forme, de section non rectangulaire.
FR2683733B1 (fr) * 1991-11-19 1994-03-18 Rossignol Sa Skis Ski en forme, de section non rectangulaire.
DE4322300C2 (de) * 1992-07-16 2002-12-19 Atomic Austria Gmbh Altenmarkt Ski mit einer Schale, einem Untergurt sowie einem vorzugsweise in die Schale integrierten Obergurt und Verfahren zum Herstellen eines Skis
DE4233647C2 (de) * 1992-10-06 1994-09-29 Head Sport Ag Verfahren zum Herstellen eines Ski
USRE36453E (en) * 1993-04-16 1999-12-21 Skis Rossignol S.A. Ski including sides and an upper shell
AT399282B (de) * 1993-06-09 1995-04-25 Kaestle Ag Verfahren zur herstellung eines skis und vorrichtung zur durchführung des verfahrens
DE19609586C1 (de) * 1996-03-12 1997-06-26 Freudenberg Carl Fa Tuftträger
DE29921881U1 (de) 1999-12-13 2000-02-03 Blizzard Ges. m.b.H., Mittersil Gleitbrett
AT523223B1 (de) * 2019-11-26 2022-05-15 Kape Gmbh Gleit- oder Rollbrett und Verfahren zu seiner Herstellung

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1207145A (fr) * 1958-08-25 1960-02-15 Perfectionnements aux skis
US3360277A (en) * 1964-04-28 1967-12-26 Salvo Mario Structure for snow skis and the like, of pressed metal plate, preferably of steel
CH417430A (de) * 1965-02-02 1966-07-15 Jacober Fritz Ski mit Sohle aus rostfreiem Stahl
DE2033845A1 (fr) * 1970-07-01 1972-01-20
DE2424880C3 (de) * 1974-05-22 1981-01-08 Franz Voelkl Ohg, 8440 Straubing Ski mit Dekor und Verfahren zu seiner Herstellung
JPS54115931A (en) * 1978-02-27 1979-09-08 Nippon Gakki Seizo Kk Molding of fiber reinforced plastic ski board
FR2620628B2 (fr) * 1987-02-27 1994-08-19 Salomon Sa Procede pour realiser un ski et ski fait selon ce procede
FR2615405B1 (fr) * 1987-05-22 1989-07-21 Salomon Sa Ski a amortissement reparti

Also Published As

Publication number Publication date
DE3914189A1 (de) 1990-10-31
EP0394835A2 (fr) 1990-10-31
EP0394835A3 (fr) 1991-12-18
DE59002362D1 (de) 1993-09-23
ATE93155T1 (de) 1993-09-15
JPH0321275A (ja) 1991-01-30

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