EP0231734B1 - Elément structurel, en particulier pour âmes de ski et son procédé de fabrication - Google Patents

Elément structurel, en particulier pour âmes de ski et son procédé de fabrication Download PDF

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Publication number
EP0231734B1
EP0231734B1 EP86890309A EP86890309A EP0231734B1 EP 0231734 B1 EP0231734 B1 EP 0231734B1 EP 86890309 A EP86890309 A EP 86890309A EP 86890309 A EP86890309 A EP 86890309A EP 0231734 B1 EP0231734 B1 EP 0231734B1
Authority
EP
European Patent Office
Prior art keywords
sheets
ski
foils
core
corrugated
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
EP86890309A
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German (de)
English (en)
Other versions
EP0231734A1 (fr
Inventor
Anton Schutti
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.)
Atomic Austria GmbH
Original Assignee
Atomic Skifabrik Alois Rohrmoser
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 Atomic Skifabrik Alois Rohrmoser filed Critical Atomic Skifabrik Alois Rohrmoser
Publication of EP0231734A1 publication Critical patent/EP0231734A1/fr
Application granted granted Critical
Publication of EP0231734B1 publication Critical patent/EP0231734B1/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 method for producing a component, in particular for use as a ski core, preferably in a cross-country ski, which core is formed by joined and interconnected, corrugated or angled profiled films made of paper or plastic material.
  • the invention further relates to a component produced by this method, in particular for use as a ski core.
  • ski cores from corrugated or angled profiled foils from paper or plastic material, which cores have a kind of honeycomb structure.
  • cores have a kind of honeycomb structure.
  • the individual foils must be held in a position such that they come to lie on top of one another with the apices or that the individual foils are prevented from lying one inside the other, which does not result in the desired structure channels between the foils could be formed.
  • an approximately flat film is arranged between two angled profiled films, which comes to rest on the tops of one of the films and which in turn forms the basis for the support of the adjacent further film.
  • the invention is therefore based on the object of specifying a method by which such a component can be manufactured in a simple manner without the need to provide flat foils between the individual profiled foils, so that the disadvantages caused by them are avoided and regardless of this the desired Position bracket for connecting the films along their apex is guaranteed.
  • tensile elements such as threads made of cotton, silk, glass, plastic, carbon or the like, are attached to the corrugated or angled profiled sheets of paper or plastic at a distance from one another, approximately parallel to one another, e.g. are glued, and then the foils are placed on top of one another in the desired position and connected to one another.
  • the tension elements which extend transversely to the generatrix of the profiled films, can be located at intervals of 10 cm to 30 cm, preferably at intervals of 20 cm.
  • the foils can be coated in a manner known per se, e.g. can be reinforced by impregnation, whereupon the packages formed by the layers which are stacked and connected to one another are divided into sections perpendicular to the generators of the films or parallel to the tension elements, the height of which approximates the height of the desired core for producing a ski, in particular one Cross-country skis.
  • the packets formed by the interconnected foils can be divided along such planes into sections which, with the normal planes, form an angle of 10 ° to 50 °, in particular an angle of 20 ° to 40 °, on the generatrix of the structure. Since the length of a ski can be divided into sections, a core section that optimally corresponds to the loads can hereby be arranged in each area of the ski.
  • corrugated or angled profiled foils made of paper or plastic material are joined to one another with the interposition of threads and connected to one another, in particular glued, which results in a cross-sectional corrugated or honeycomb structure.
  • these packages of foils stacked and connected to one another are divided into sections, the width of which is approximately equal to the height of a ski core.
  • the walls of these sections are approximately perpendicular to the tread or the surface of the ski.
  • the core is thus formed by a structured body which is formed with channels running from top to bottom.
  • a component for producing a core for a ski thus consists of foils made of paper or a plastic material that are joined together and directly connected to one another, corrugated or angled profiled.
  • the paper from which the component is made is preferably reinforced by impregnation using a plastic material. If the component is formed by corrugated foils, foils lying one against the other are displaced relative to one another in such a way that their vertices are against one another lie, where they are connected along the apex.
  • at least some of the foils can be double-layered, with two foils lying one against the other, whereas the foils lying against the double layer are connected to them along their apex lines.
  • a component 1 according to the invention which can be used to produce a ski core, consists of corrugated foils 2, foils lying next to one another being displaced relative to one another in such a way that their apex lines 3a, 3b come to lie on one another .
  • the foils 2 are connected to one another along these crest lines 3, e.g. glued, whereby a structure is formed in which continuous channels 4 are formed between the individual foils 2. In the case of a ski core, these channels 4 extend from the top of the ski to the bottom thereof.
  • the loads to be absorbed by the core are absorbed by the walls of the foils 2 which run from top to bottom. Due to the structure of this component 1, it has the strength required for use as a ski core.
  • the foils can be made of paper or stiff plastic material impregnated with a plastic.
  • the exemplary embodiment according to FIG. 2 differs from the exemplary embodiment according to FIG. 1 only in that part of the foils 2 has a double layer to increase the strength of the component 1, two foils 2n, 2'n being placed one inside the other and connected to one another.
  • the adjacent foils 2m, 2o are shifted relative to the first pair of foils 2n, 2'n, whereby they can be connected to the latter along their apex lines 3m, 3o along the apex lines 3n, 3'n.
  • the remaining features and the manufacturing method correspond to those which were explained using the exemplary embodiment according to FIG. 1.
  • corrugated foils made of paper or plastic are spaced on one side at 20 cm to 50 cm tension elements, e.g. Threads made of cotton, silk, glass, carbon, plastic or the like, attached.
  • the tension elements run transversely to the generatrix of the corrugated foils.
  • the foils are then impregnated with a plastic, which significantly increases their strength. During the impregnation process, the tension elements serve to maintain the shape.
  • a plurality of foils are placed on top of each other so that they touch along their apex lines and they are joined together along the apex, e.g. glued or welded.
  • the plates formed in this way are subdivided along cuts which are approximately normal to the generators, whereby sections are obtained which are suitable as cores in the production of skis.
  • the cuts are made along such planes which form an angle of 10 ° to 50 °, in particular an angle of 20 ° to 40 °, with the generators, whereby specific strength properties can be imparted to the ski core.
  • the films used for the manufacturing process can e.g. have a width of 1 m.
  • the impregnation is carried out in such a way that the films are drawn through a resin bath, whereupon they are wound onto a spindle and tilted, as a result of which excess resin can flow off.
  • Sections of the foils are then stacked on top of one another, whereby plates are formed. These plates are placed in a wind tunnel heated to a temperature of 130 ° C to 150 ° C, in which hot air is also passed through the channels in the plates. This causes the resin to harden and the foils to be firmly bonded to one another, thereby forming rigid plates.
  • These plates are then divided into sections which are suitable as a core for skis, in particular cross-country skis.

Landscapes

  • Laminated Bodies (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Polymerisation Methods In General (AREA)
  • Polyurethanes Or Polyureas (AREA)

Claims (7)

1. Procédé de fabrication d'un élément de construction, destiné à être utilisé en particulier comme noyau pour un ski, de préférence dans un ski de fond, lequel noyau est formé par des feuilles de papier ou de matière plastique, ondulées ou profilées coudées, juxtaposées et assemblées entre elles, caractérisé en ce qu'on fixe, par exemple on colle, sur les feuilles (2) en papier ou en matière plastique, ondulées ou profilées coudées, des éléments de traction (6) tels que des fils en coton, soie, verre, matière plastique, carbone ou similaire, espacés l'un de l'autre, à peu près parallèles entre eux, et en ce qu'on superpose ensuite les feuilles (2), puis on les assemble entre elles, en particulier on les colle.
2. Procédé selon la revendication 1, caractérisé en ce que les feuilles (2) sont renforcées par imprégnation, après fixation des éléments de traction (6).
3. Procédé selon l'une quelconque des revendications 1 ou 2, caractérisé en ce que les plaques formées par les feuilles (2) assemblées entre elles, sont subdivisées en portions, le long de ces plans, lesquels forment un angle de 10° à 50°, de préférence un angle compris entre 20° et 40°, avec les plans normaux aux génératrices.
4. Série d'éléments de construction, réalisée selon le procédé suivant l'une quelconque des revendications 1 à 3, caractérisée en ce que des éléments de traction (6), nécessaires à la fabrication, se trouvent au moins dans certains des ' éléments de construction, entre des feuilles (2) profilées adjacentes.
5. Elément de construction selon la revendication 4, caractérisé en ce que le papier est renforcé, de manière connue en soi, par imprégnation, au moyen d'une matière plastique.
6. Elément de construction selon l'une quelconque des revendications 4 ou 5, caractérisé en ce que deux feuilles ondulées (2) juxtaposées, sont disposées l'une par rapport à l'autre, de manière qu'elles s'appliquent l'une contre l'autre par leurs lignes de sommet, et qu'elles soient assemblées entre elles le long de celles-ci.
7. Elément de construction selon l'une quelconque des revendications 4 à 6, caractérisé en ce qu'une partie au moins des feuilles (2) est à double couche.
EP86890309A 1985-11-13 1986-11-12 Elément structurel, en particulier pour âmes de ski et son procédé de fabrication Expired - Lifetime EP0231734B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT3297/85 1985-11-13
AT0329785A AT385469B (de) 1985-11-13 1985-11-13 Verfahren zur herstellung eines bauelementes insbesondere zur verwendung als skikern, vorzugsweise in einem langlaufski, und bauelement zur herstellung eines skikernes

Publications (2)

Publication Number Publication Date
EP0231734A1 EP0231734A1 (fr) 1987-08-12
EP0231734B1 true EP0231734B1 (fr) 1990-08-29

Family

ID=3548374

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86890309A Expired - Lifetime EP0231734B1 (fr) 1985-11-13 1986-11-12 Elément structurel, en particulier pour âmes de ski et son procédé de fabrication

Country Status (3)

Country Link
EP (1) EP0231734B1 (fr)
AT (2) AT385469B (fr)
DE (1) DE3673805D1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD280654A3 (de) * 1987-03-17 1990-07-18 Komb Sportgeraete Veb Leichtbaukern
US6105991A (en) 1997-11-20 2000-08-22 The Burton Corporation Core for a gliding board
AT406825B (de) * 1998-07-15 2000-09-25 Fischer Gmbh Hockeyschläger
US6502850B1 (en) 1999-10-12 2003-01-07 The Burton Corporation Core for a gliding board
AT503213B1 (de) * 2006-01-27 2007-10-15 Fischer Gmbh Skikern mit wabenförmigem aufbau

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3707296A (en) * 1970-01-09 1972-12-26 Westinghouse Electric Corp Modified phenolic resin system and laminates made therefrom
US3930658A (en) * 1973-10-29 1976-01-06 Amf Incorporated Plastic ski and method of making the same
AT386535B (de) * 1982-11-22 1988-09-12 Fischer Gmbh Leichtbaukern
AT384949B (de) * 1984-02-15 1988-01-25 Isosport Verbundbauteile Leichtbaukern, sowie verbundbauteil, insbesondere ski, mit diesem leichtbaukern

Also Published As

Publication number Publication date
ATE55915T1 (de) 1990-09-15
ATA329785A (de) 1987-09-15
DE3673805D1 (de) 1990-10-04
AT385469B (de) 1988-04-11
EP0231734A1 (fr) 1987-08-12

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