EP0231734A1 - 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
EP0231734A1
EP0231734A1 EP86890309A EP86890309A EP0231734A1 EP 0231734 A1 EP0231734 A1 EP 0231734A1 EP 86890309 A EP86890309 A EP 86890309A EP 86890309 A EP86890309 A EP 86890309A EP 0231734 A1 EP0231734 A1 EP 0231734A1
Authority
EP
European Patent Office
Prior art keywords
ski
foils
core
corrugated
films
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.)
Granted
Application number
EP86890309A
Other languages
German (de)
English (en)
Other versions
EP0231734B1 (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.
  • cores for skis in particular for cross-country skis, by superimposed layers, e.g. are made of wood.
  • cores are extremely heavy. If the ski is to have a low weight, it is also known to form its core as a reinforced foam from a plastic material.
  • Such cores made by foaming have only a low strength.
  • the invention is therefore based on the object of creating a core for a ski, in particular a cross-country ski, which has a very high strength despite a very low weight.
  • 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 position in such a way that the apexes lie on top of one another or that the individual foils are prevented from lying one inside the other, whereby the desired structure with channels located between the foils could not 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 film forms.
  • 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 these are avoided and regardless of this the desired Position bracket for connecting the films along their apex is guaranteed.
  • This is achieved according to the invention in that on the corrugated or angled profiled foils made of paper or plastic, spaced apart from each other, approximately parallel tension elements, such as threads Cotton, silk, glass, plastic, carbon or the like are attached, for example 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 foils, can be located at intervals of 10 cm to 30 cm, preferably at intervals of 20 cm.
  • the foils can be bonded in a manner known per se, e.g. 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 core can be divided into sections over the length of a ski, 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 corrugated or honeycomb-like structure in cross section.
  • these packets of films 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 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 the production of a core for a ski, in particular a cross-country ski is characterized according to the invention in that it consists of foils made of paper or a plastic material that are joined together and directly connected, corrugated or angled profiled foils.
  • 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 apices lie against one another, wherein they are connected to one another along the apex.
  • At least some of the foils can be double-layered, with two foils lying one against the other in are placed 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 for the production of 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, for example glued, along these apex lines 3, thereby forming a structure in which continuous channels 4 are formed between the individual foils 2.
  • 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 from paper or paper impregnated with a plastic. be made of rigid plastic material.
  • 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 opposite the first pair of foils. 2n, 2'n arranged displaced, whereby they can be connected to it 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 placed on one side at intervals of 20 cm to 50 cm.
  • Tension elements such as 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 large number of foils are then placed on top of one another in such a way that they touch along their apex lines and they are connected to one another along the apex, for example 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 foils used for the manufacturing process can have a width of 1 m, for example.
  • the impregnation is carried out in such a way that the foils are drawn through a resin bath, whereupon they are wound onto a spindle and inclined, which allows excess resin to drain 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.

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  • Compositions Of Macromolecular Compounds (AREA)
  • Laminated Bodies (AREA)
  • Polymerisation Methods In General (AREA)
  • Polyurethanes Or Polyureas (AREA)
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 true EP0231734A1 (fr) 1987-08-12
EP0231734B1 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)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0284878A1 (fr) * 1987-03-17 1988-10-05 VEB Kombinat Sportgeräte Schmalkalden Noyau de construction léger, notamment âme de support de ski
WO2000003769A1 (fr) * 1998-07-15 2000-01-27 Fischer Gesellschaft Mbh Crosse de hockey
US6105991A (en) * 1997-11-20 2000-08-22 The Burton Corporation Core for a gliding board
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

Citations (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
FR2248860A1 (fr) * 1973-10-29 1975-05-23 Amf Inc
FR2536335A1 (fr) * 1982-11-22 1984-05-25 Fischer Gmbh Noyau de construction leger a structure cellulaire
WO1985003642A1 (fr) * 1984-02-15 1985-08-29 Isosport Verbundbauteile Ges. M.B.H. Noyau de construction legere, ainsi qu'une partie de construction de liaison, en particulier un ski, comportant ce noyau de construction legere

Patent Citations (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
FR2248860A1 (fr) * 1973-10-29 1975-05-23 Amf Inc
FR2536335A1 (fr) * 1982-11-22 1984-05-25 Fischer Gmbh Noyau de construction leger a structure cellulaire
WO1985003642A1 (fr) * 1984-02-15 1985-08-29 Isosport Verbundbauteile Ges. M.B.H. Noyau de construction legere, ainsi qu'une partie de construction de liaison, en particulier un ski, comportant ce noyau de construction legere

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0284878A1 (fr) * 1987-03-17 1988-10-05 VEB Kombinat Sportgeräte Schmalkalden Noyau de construction léger, notamment âme de support de ski
US6105991A (en) * 1997-11-20 2000-08-22 The Burton Corporation Core for a gliding board
US6520530B1 (en) 1997-11-20 2003-02-18 The Burton Corporation Core for a gliding board
WO2000003769A1 (fr) * 1998-07-15 2000-01-27 Fischer Gesellschaft Mbh Crosse de hockey
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

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
EP0231734B1 (fr) 1990-08-29

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