WO1997017113A1 - Profiled ski having a non-rectangular cross-section - Google Patents

Profiled ski having a non-rectangular cross-section Download PDF

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Publication number
WO1997017113A1
WO1997017113A1 PCT/FR1996/001726 FR9601726W WO9717113A1 WO 1997017113 A1 WO1997017113 A1 WO 1997017113A1 FR 9601726 W FR9601726 W FR 9601726W WO 9717113 A1 WO9717113 A1 WO 9717113A1
Authority
WO
WIPO (PCT)
Prior art keywords
ski
core
shaped
shell
lateral
Prior art date
Application number
PCT/FR1996/001726
Other languages
French (fr)
Inventor
Hervé MANEINT
Joël BOZON
Original Assignee
Surfpolitix Europe
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 Surfpolitix Europe filed Critical Surfpolitix Europe
Priority to AU75000/96A priority Critical patent/AU7500096A/en
Publication of WO1997017113A1 publication Critical patent/WO1997017113A1/en

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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
    • A63C5/003—Structure, covering or decoration of the upper ski surface

Definitions

  • the present invention relates to a ski in the form of a non-rectangular section.
  • the oldest skis are formed by a central core, the upper part of which has a decorative and protective coating and the lower part of which has edges and a central sliding sole.
  • the lateral faces have rigid edges ensuring the transmission of the forces exerted by the skier on the upper face of the ski towards the lower face, namely the edges and the sliding sole.
  • skis having a non-rectangular section, and lateral faces inclined over at least part of their length.
  • the ski edges can be flat or curved, in shapes that can vary along the ski.
  • the object of the present invention is to remedy these drawbacks by proposing a ski whose mechanical qualities are improved, while keeping the aesthetics of the skis in shape.
  • the invention relates more particularly to a shaped ski, of non-rectangular section, comprising a filling core, a shell forming the upper face and a lower face equipped with longitudinal metal edges and a central sliding sole, characterized in that the core has in its lower part two longitudinal lateral extensions, the edges being supported at least partially on the lower surface of said lateral extensions and the upper shell bearing on the upper surface of the two lateral shoulders and on the upper surface from the central part of the core, the forces exerted on the hull being transmitted to the underside of the ski only through the core.
  • the central core thus uniformly transmits the forces between the underside of the ski formed by the sole and the edges on the one hand, and the upper face formed by the shell on the other hand.
  • the core is surrounded by a torsion box.
  • this torsion box is made of fiberglass or composite.
  • the core is formed by a single material such as a polyurethane foam, wood, or a honeycomb structure.
  • the core is formed by an assembly of different materials surrounded by a torsion box.
  • the lateral faces of the core are visible and form the edge of the ski over at least part of the length of the ski.
  • the lateral faces of the core are coated with a protective and decorative sheet forming the edge of the ski over at least part of the length of the ski.
  • the section of the core has an inverted "T" shape.
  • the ski according to the invention is composed of a core
  • the general shape of the core section (1) is that of an inverted "T".
  • the shoulders (5, 6) can be horizontal or slightly inclined, or even concave or convex curves.
  • the core (1) is formed by a single component such as polyurethane foam, wood, a honeycomb structure, or by the combination of such materials.
  • the core (1) is surrounded by a torsion box (7) formed by a sheath of glass fibers or composites.
  • the ski comprises in known manner a sliding sole (8).
  • An inter-square fabric (9) is provided between the lower surface of the core (1) surrounded by the torsion box (7) and the sliding surface (8).
  • the edges (10, 11) bear directly on the torsion box, on the lower surface of the lateral extensions (3, 4).
  • the shell (12) rests on the torsion box (7), on the upper surface of the central part (2) of the core (1) on the one hand, and on the shoulders (5, 6) of the lateral extensions (3, 4) on the other hand.
  • the shoulders (5, 6) are substantially perpendicular to the edges (10, 11).
  • Decorative and protective elements (13, 14) laterally protect the torsion box (7).
  • These decorative and protective elements (13, 14) consist of a thin sheet of ABS, in zicral by example, or metal, wood or any other material resistant to abrasion and scratches.
  • These decorative and protective elements (13, 14) have no function of transmitting the forces between the upper part and the lower part of the ski.
  • the invention applies as well to skis as to monoskis, snowboard, surfs or skwal (T.M.).

Landscapes

  • Laminated Bodies (AREA)

Abstract

A profiled ski having a non-rectangular cross-section and including, at least in the central ski portion supporting the bindings, a filler core (1), a shell (12) forming the upper surface, and a lower surface provided with longitudinal metal edges (10, 11) and a central ski base (8). The lower portion of the core (1) includes two longitudinal side extensions (3, 4), the edges (10, 11) at least partially engage the lower surface of said extensions (3, 4), and the upper shell (12) engages the upper surfaces of the two side shoulders and the upper surface of the central portion of the core (1). Forces exerted on the shell (12) are transmitted to the lower surface of the ski via the core (1) alone.

Description

SKI EN FORME DE SECTION NON RECTANGULAIRE SKI IN THE FORM OF A NON-RECTANGULAR SECTION
La présente invention concerne un ski en forme de section non rectangulaire.The present invention relates to a ski in the form of a non-rectangular section.
On connaît dans l'état de la technique deux types de skis. Les skis les plus anciens sont formés par un noyau central dont la partie supérieure porte un revêtement de décoration et de protection et dont la partie inférieure est munie de carres et d'une semelle de glissement centrale. Les faces latérales présentent des chants rigides assurant la transmission des efforts exercés par le skieur sur la face supérieure du ski vers la face inférieure, à savoir les carres et la semelle de glissement.Two types of skis are known in the prior art. The oldest skis are formed by a central core, the upper part of which has a decorative and protective coating and the lower part of which has edges and a central sliding sole. The lateral faces have rigid edges ensuring the transmission of the forces exerted by the skier on the upper face of the ski towards the lower face, namely the edges and the sliding sole.
On a également plus récemment proposé des skis en forme présentant une section non rectangulaire, et des faces latérales inclinées sur une partie au moins de leur longueur. Les chants du ski peuvent être planes ou courbes, suivant des formes pouvant varier le long du ski.There have also been more recently proposed shaped skis having a non-rectangular section, and lateral faces inclined over at least part of their length. The ski edges can be flat or curved, in shapes that can vary along the ski.
Pour permettre une bonne transmission des efforts entre la surface supérieure et la surface inférieure, on a proposé des structures composites mettant en oeuvre des éléments de renfort latéraux disposés de part et d'autre du noyau et dont les faces extérieures sont apparentes. De telles structures sont décrites dans le brevet français FR2683734 par exemple. De telles réalisations ne sont pas totalement satisfaisantes. En effet, les qualités mécaniques des éléments de renfort latéraux d'une part, et du noyau central d'autre part, ne sont pas identiques, et l'exercice d'effort important entre la face supérieure et la face inférieure peut conduire à une désolidarisation de ces éléments de renfort latéraux. De plus, la coque s ' appuyant sur une structure composite peut se décoller localement.To allow good transmission of forces between the upper surface and the lower surface, composite structures have been proposed using lateral reinforcing elements arranged on either side of the core and whose external faces are visible. Such structures are described in French patent FR2683734 for example. Such achievements are not entirely satisfactory. Indeed, the mechanical qualities of the lateral reinforcing elements on the one hand, and of the central core on the other hand, are not identical, and the exercise of significant effort between the upper face and the lower face can lead to a separation of these lateral reinforcing elements. In addition, the hull leaning on a composite structure can peel off locally.
Le but de la présente invention est de remédier à ces inconvénients en proposant un ski dont les qualités mécaniques sont améliorées, tout en conservant l'esthétique des skis en forme. A cet effet, l'invention concerne plus particulièrement un ski en forme, de section non rectangulaire, comprenant un noyau de remplissage, une coque formant la face supérieure et une face inférieure équipée de carres métalliques longitudinales et d'une semelle de glissement centrale, caractérisé en ce que le noyau présente dans sa partie inférieure deux prolongements latéraux longitudinaux, les carres s 'appuyant au moins partiellement sur la surface inférieure desdits prolongements latéraux et la coque supérieure prenant appui sur la surface supérieure des deux épaulements latéraux et sur la surface supérieure de la partie centrale du noyau, les efforts s 'exerçant sur la coque étant transmis à la face inférieure du ski uniquement par l'intermédiaire du noyau. Le noyau central transmet ainsi de manière homogène les efforts entre la face inférieure du ski formé par la semelle et les carres d'une part, et la face supérieure formée par la coque d'autre part.The object of the present invention is to remedy these drawbacks by proposing a ski whose mechanical qualities are improved, while keeping the aesthetics of the skis in shape. To this end, the invention relates more particularly to a shaped ski, of non-rectangular section, comprising a filling core, a shell forming the upper face and a lower face equipped with longitudinal metal edges and a central sliding sole, characterized in that the core has in its lower part two longitudinal lateral extensions, the edges being supported at least partially on the lower surface of said lateral extensions and the upper shell bearing on the upper surface of the two lateral shoulders and on the upper surface from the central part of the core, the forces exerted on the hull being transmitted to the underside of the ski only through the core. The central core thus uniformly transmits the forces between the underside of the ski formed by the sole and the edges on the one hand, and the upper face formed by the shell on the other hand.
Selon une réalisation préférée, le noyau est entouré par une boîte de torsion.According to a preferred embodiment, the core is surrounded by a torsion box.
Avantageusement, cette boîte de torsion est réalisée en fibre de verre ou composite.Advantageously, this torsion box is made of fiberglass or composite.
Selon une première variante, le noyau est formé par un matériau unique tel qu'une mousse polyuréthanne, du bois, ou une structure en nid d'abeille.According to a first variant, the core is formed by a single material such as a polyurethane foam, wood, or a honeycomb structure.
Selon une deuxième variante, le noyau est formé par un assemblage de différents matériaux entouré par une boîte de torsion.According to a second variant, the core is formed by an assembly of different materials surrounded by a torsion box.
Selon un mode de réalisation préféré, les faces latérales du noyau sont apparentes et forment le chant du ski sur une partie au moins de la longueur du ski.According to a preferred embodiment, the lateral faces of the core are visible and form the edge of the ski over at least part of the length of the ski.
Selon un autre mode de réalisation avantageux, les faces latérales du noyau sont revêtues par une feuille de protection et de décoration formant le chant du ski sur une partie au moins de la longueur du ski. Selon une variante particulière, la section du noyau présente une forme de "T" inversé.According to another advantageous embodiment, the lateral faces of the core are coated with a protective and decorative sheet forming the edge of the ski over at least part of the length of the ski. According to a particular variant, the section of the core has an inverted "T" shape.
La présente invention sera mieux comprise à la lecture de la description d'un exemple de réalisation non limitatif faisant référence à la figure unique représentant une vue en coupe transversale d'un ski selon l'invention.The present invention will be better understood on reading the description of a nonlimiting exemplary embodiment with reference to the single figure showing a cross-sectional view of a ski according to the invention.
Le ski selon l'invention est composé d'un noyauThe ski according to the invention is composed of a core
(1) présentant une partie centrale (2) et, de part et d'autre, par des prolongements latéraux (3, 4) dont les surfaces supérieures forment des épaulements respectivement(1) having a central part (2) and, on both sides, by lateral extensions (3, 4) whose upper surfaces form shoulders respectively
(5, 6) . La forme générale de la section du noyau (1) est celle d'un "T" inversé. Les épaulements (5, 6) peuvent être horizontaux ou inclinés légèrement, ou encore courbes concaves ou convexes. Le noyau (1) est formé par une composante unique telle que de la mousse de polyuréthanne, du bois, une structure à nid d'abeille, ou encore par la combinaison de tels matériaux. Le noyau (1) est entouré par une boîte de torsion (7) formée par une gaine de fibres de verre ou de composites.(5, 6). The general shape of the core section (1) is that of an inverted "T". The shoulders (5, 6) can be horizontal or slightly inclined, or even concave or convex curves. The core (1) is formed by a single component such as polyurethane foam, wood, a honeycomb structure, or by the combination of such materials. The core (1) is surrounded by a torsion box (7) formed by a sheath of glass fibers or composites.
Le ski comporte de manière connue une semelle de glissement (8) . Un tissu entrecarres (9) est prévu entre la surface inférieure du noyau (1) entouré de la boîte de torsion (7) et la surface de glissement (8) . Les carres (10, 11) s'appuient directement sur la boîte de torsion, à la surface inférieure des prolongements latéraux (3, 4) .The ski comprises in known manner a sliding sole (8). An inter-square fabric (9) is provided between the lower surface of the core (1) surrounded by the torsion box (7) and the sliding surface (8). The edges (10, 11) bear directly on the torsion box, on the lower surface of the lateral extensions (3, 4).
La coque (12) s'appuie sur la boîte de torsion (7) , sur la surface supérieure de la partie centrale (2) du noyau (1) d'une part, et sur les épaulements (5, 6) des prolongements latéraux (3, 4) d'autre part.The shell (12) rests on the torsion box (7), on the upper surface of the central part (2) of the core (1) on the one hand, and on the shoulders (5, 6) of the lateral extensions (3, 4) on the other hand.
Dans l'exemple décrit, les épaulements (5, 6) se trouvent sensiblement à l'aplomb des carres (10, 11) .In the example described, the shoulders (5, 6) are substantially perpendicular to the edges (10, 11).
Des éléments de décoration et de protection (13, 14) viennent protéger latéralement la boîte de torsion (7) . Ces éléments de décoration et de protection (13, 14) sont constitués par une feuille mince en ABS, en zicral par exemple, ou de métal, de bois ou de tout autre matériau résistant à l'abrasion et aux rayures. Ces éléments de décoration et de protection (13, 14) n'ont aucune fonction de transmission des efforts entre la partie supérieure et la partie inférieure du ski.Decorative and protective elements (13, 14) laterally protect the torsion box (7). These decorative and protective elements (13, 14) consist of a thin sheet of ABS, in zicral by example, or metal, wood or any other material resistant to abrasion and scratches. These decorative and protective elements (13, 14) have no function of transmitting the forces between the upper part and the lower part of the ski.
La présente invention est décrite à titre d'exemple non limitatif. Il est entendu que l'Homme de Métier pourra apporter différentes modifications sans pour autant sortir du cadre de l'invention. En particulier, il est possible de modifier la structure du ski au niveau des extrémités, en prévoyant une section différente au niveau de la spatule par exemple.The present invention is described by way of nonlimiting example. It is understood that the person skilled in the art can make different modifications without departing from the scope of the invention. In particular, it is possible to modify the structure of the ski at the ends, by providing a different section at the level of the tip for example.
Par ailleurs, l'invention s'applique aussi bien à des skis qu'à des monoskis, snowboard, surfs ou skwal (T.M. ) . Furthermore, the invention applies as well to skis as to monoskis, snowboard, surfs or skwal (T.M.).

Claims

REVENDICATIONS
1 - Ski en forme, de section non rectangulaire, comprenant au moins dans sa partie centrale portant les fixations, un noyau (1) de remplissage, une coque (12) formant la face supérieure et une face inférieure équipée de carres (10, 11) métalliques longitudinales et d'une semelle de glissement (8) centrale, caractérisé en ce que le noyau1 - Ski in shape, of non-rectangular section, comprising at least in its central part carrying the bindings, a filling core (1), a shell (12) forming the upper face and a lower face equipped with edges (10, 11 ) longitudinal metal and a central sliding sole (8), characterized in that the core
(1) présente dans sa partie inférieure deux prolongements(1) has two extensions in its lower part
(3, 4) latéraux longitudinaux, les carres (10, 11) s 'appuyant au moins partiellement sur la surface inférieure desdits prolongements (3, 4) latéraux et la coque (12) supérieure prenant appui sur la surface supérieure des deux épaulements latéraux et sur la surface supérieure de la partie centrale du noyau (1) , les efforts s 'exerçant sur la coque (12) étant transmis à la face inférieure du ski uniquement par l'intermédiaire du noyau (1) .(3, 4) longitudinal sides, the edges (10, 11) pressing at least partially on the lower surface of said lateral extensions (3, 4) and the shell (12) upper bearing on the upper surface of the two lateral shoulders and on the upper surface of the central part of the core (1), the forces exerted on the shell (12) being transmitted to the underside of the ski only through the core (1).
2 - Ski en forme selon la revendication 1 caractérisé en ce que le noyau (1) est entouré par une boîte de torsion (7) . 3 - Ski en forme selon la revendication 2 caractérisé en ce que le noyau (1) est entouré par une boîte de torsion (7) en fibres de verre ou composites.2 - Shaped ski according to claim 1 characterized in that the core (1) is surrounded by a torsion box (7). 3 - Shaped ski according to claim 2 characterized in that the core (1) is surrounded by a torsion box (7) made of glass fibers or composites.
4 - Ski en forme selon l'une quelconque des revendications 1 à 3 caractérisé en ce que le noyau (1) est formé par un matériau unique.4 - Ski shaped according to any one of claims 1 to 3 characterized in that the core (1) is formed by a single material.
5 - Ski en forme selon la revendication 4 caractérisé en ce que le noyau (1) est formé par un matériau unique tel qu'une mousse polyuréthanne, du bois, ou une structure en nid d'abeille. 6 - Ski en forme selon l'une quelconque des revendications 1 à 3 caractérisé en ce que le noyau (1) est formé par un assemblage de différents matériaux entouré par une boîte de torsion (7) .5 - Shaped ski according to claim 4 characterized in that the core (1) is formed by a single material such as polyurethane foam, wood, or a honeycomb structure. 6 - Shaped ski according to any one of claims 1 to 3 characterized in that the core (1) is formed by an assembly of different materials surrounded by a torsion box (7).
7 - Ski en forme selon l'une quelconque des revendications 1 à 6 caractérisé en ce que les faces latérales du noyau (1) sont apparentes et forment le chant du ski sur une partie au moins de la longueur du ski .7 - Shaped ski according to any one of claims 1 to 6 characterized in that the faces lateral of the core (1) are visible and form the edge of the ski over at least part of the length of the ski.
8 - Ski en forme selon l'une quelconque des revendications 1 à 6 caractérisé en ce que les faces latérales du noyau (1) sont revêtues par une feuille de protection et de décoration formant le chant du ski sur une partie au moins de la longueur du ski.8 - Ski shaped according to any one of claims 1 to 6 characterized in that the lateral faces of the core (1) are coated with a protective and decorative sheet forming the edge of the ski over at least part of the length ski.
9 - Ski en forme selon l'une quelconque des revendications 1 à 6 caractérisé en ce que la section du noyau (1) présente une forme de "T" inversé. 9 - Shaped ski according to any one of claims 1 to 6 characterized in that the section of the core (1) has a shape of an inverted "T".
PCT/FR1996/001726 1995-11-03 1996-10-31 Profiled ski having a non-rectangular cross-section WO1997017113A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU75000/96A AU7500096A (en) 1995-11-03 1996-10-31 Profiled ski having a non-rectangular cross-section

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR95/13029 1995-11-03
FR9513029A FR2740692B1 (en) 1995-11-03 1995-11-03 SKI IN THE FORM OF A NON-RECTANGULAR SECTION

Publications (1)

Publication Number Publication Date
WO1997017113A1 true WO1997017113A1 (en) 1997-05-15

Family

ID=9484225

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1996/001726 WO1997017113A1 (en) 1995-11-03 1996-10-31 Profiled ski having a non-rectangular cross-section

Country Status (3)

Country Link
AU (1) AU7500096A (en)
FR (1) FR2740692B1 (en)
WO (1) WO1997017113A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3586931A1 (en) * 2018-06-28 2020-01-01 Völkl Sports GmbH Bottom structural layer with clip effect

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0937485A3 (en) * 1998-02-24 2002-07-24 Franz Völkl GmbH & Co. Ski und Tennis Sportartikelfabrik KG Snowboard, in particular a ski

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902732A (en) * 1973-02-14 1975-09-02 Jr Albert A Fosha Advanced composition ski
US4293142A (en) * 1979-07-16 1981-10-06 K-2 Corporation Vibration damped ski
CH675362A5 (en) * 1988-04-18 1990-09-28 Francois Wirz Ski with removable elements to adjust torsional rigidity - elements being elastic semi-elastic or rigid and held in longitudinal grooves upper surface
EP0448936A1 (en) * 1990-03-26 1991-10-02 Salomon S.A. Method of joining a support device and a ski and a combination of a support device and a ski
EP0546309A1 (en) * 1991-12-13 1993-06-16 Salomon S.A. Upper ski surface with variable width

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3902732A (en) * 1973-02-14 1975-09-02 Jr Albert A Fosha Advanced composition ski
US4293142A (en) * 1979-07-16 1981-10-06 K-2 Corporation Vibration damped ski
CH675362A5 (en) * 1988-04-18 1990-09-28 Francois Wirz Ski with removable elements to adjust torsional rigidity - elements being elastic semi-elastic or rigid and held in longitudinal grooves upper surface
EP0448936A1 (en) * 1990-03-26 1991-10-02 Salomon S.A. Method of joining a support device and a ski and a combination of a support device and a ski
EP0546309A1 (en) * 1991-12-13 1993-06-16 Salomon S.A. Upper ski surface with variable width

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3586931A1 (en) * 2018-06-28 2020-01-01 Völkl Sports GmbH Bottom structural layer with clip effect

Also Published As

Publication number Publication date
AU7500096A (en) 1997-05-29
FR2740692A1 (en) 1997-05-09
FR2740692B1 (en) 1998-01-23

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