EP0706411B1 - Ski - Google Patents

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Publication number
EP0706411B1
EP0706411B1 EP95916497A EP95916497A EP0706411B1 EP 0706411 B1 EP0706411 B1 EP 0706411B1 EP 95916497 A EP95916497 A EP 95916497A EP 95916497 A EP95916497 A EP 95916497A EP 0706411 B1 EP0706411 B1 EP 0706411B1
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EP
European Patent Office
Prior art keywords
ski
transparent
snowboard
plastic material
set forth
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
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EP95916497A
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German (de)
French (fr)
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EP0706411A1 (en
Inventor
Ullrich Metzler
Matthias Luy
Michael Broger
Rainer Nachbaur
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.)
Kaestle GmbH
Original Assignee
KAESTLE AG
KAESTLE AG
Kastle AG
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Publication date
Application filed by KAESTLE AG, KAESTLE AG, Kastle AG filed Critical KAESTLE AG
Priority to SI9530144T priority Critical patent/SI0706411T1/en
Publication of EP0706411A1 publication Critical patent/EP0706411A1/en
Application granted granted Critical
Publication of EP0706411B1 publication Critical patent/EP0706411B1/en
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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
    • A63C5/003—Structure, covering or decoration of the upper ski surface
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C2203/00—Special features of skates, skis, roller-skates, snowboards and courts
    • A63C2203/08—Decoration

Definitions

  • the invention relates to a ski or a snowboard with layers of transparent plastic. Skis with Layers of transparent plastic are e.g. through the FR-A 2 512 681 has become known.
  • a ski is increasingly winning that too Appearance of the ski influences the purchase decision.
  • various means including technical ones, that are used for Influencing the appearance of the ski can be used. So e.g. are already transparent layers as top layers for the top of the ski or as a tread surface for Protection of the decor or of decorative layers used either on the back of the transparent layer or are attached below the transparent outer layer.
  • the object of the invention is to use transparent To expand ski components, on the one hand to Influencing the appearance of the ski and / or on the other to achieve a technical effect.
  • the ski or the snowboard at least partially perpendicular to the Tread level transparent over its entire cross-sectional height
  • the ski or that Snowboard in its entirety perpendicular to the tread plane transparent over its entire cross-sectional height whereby however, this may not be the case in all areas of the ski must (therefore "at least in some areas ").
  • functional parts made of opaque material, especially metal, such as for alpine skis the steel edges, binding attachment parts or reinforcing elements form zones which are formed by that exclude transparency. It is also possible, for decorative reasons or for marking opaque, i.e. attaching non-transparent inserts in the ski body, which then contrast zones to the transparent ones Form areas of the ski.
  • Transparent in the sense of the invention means not only clear, but also translucent.
  • those parts of the ski are to be referred to as “transparent” where the degree of transmission in the visible spectral range is different from zero, for example at least 10%, but is preferably considerably higher.
  • a source of light that is located, for example, under the running surface of the ski should at least still be perceived as a glow on the ski surface.
  • the transparency can also be "colored", so it does not have to extend across the full width of the visible spectrum. On the other hand, discoloration due to radiation (light, UV) or aging is rather undesirable. Transparent materials that are as stable as possible with respect to radiation and aging should therefore be used with regard to their transparency.
  • the inner components at least be transparent in some areas, e.g. the bearing Layers made of glass fiber reinforced plastic can exist in the transparent glass fibers with transparent resin are bound. If the reinforcement inserts partly made of transparent glass fibers and partly consist of opaque carbon fibers also special technical and design Effects are achieved.
  • the core zones of the ski can be seen either by using transparent core material or make it transparent that inner Cavities are formed. For this, e.g. the supporting one Ski body formed from one or more hollow bodies whose walls (at least partially) are made of transparent glass fiber reinforced plastic.
  • honeycomb cell walls are not made of transparent Material.
  • honeycomb cell walls also made of glass fiber reinforced, if necessary - Made of plastic.
  • the invention not only enables the production of Skis of previously unknown appearance, but also gives an insight into the inside of the ski to Determine processing errors, e.g. a incorrect orientation of the glass fibers or air bubbles in hardened synthetic resin.
  • Fiber composite plastics with directional reinforcement fibers can their excellent material properties such as high strength, rigidity and corrosion resistance only fully play when it is succeeds in increasing the fibers according to the load orientate. Even small deviations from the direction of the fibers to the direction of loading cause considerable losses in the strength of the component.
  • the control the correct orientation of the reinforcing fibers so far either failed during ski making for technological reasons or because the individual ski components were not allowed to be viewed (were opaque). Then you have consciously Fiber composite materials oversized to one to compensate for possible loss of strength, however at the expense of the total weight.
  • the invention can be applied to all types of Skis (alpine skis, cross-country skis, water skis etc.) apply, with the term ski also Snowboards are included.
  • Fig. 1 shows in cross section a ski that one at appropriate choice of materials in the sense of the invention as can train transparent skis.
  • the ski according to FIG. 1 belongs to the type of shell skis and consists of a flat lower assembly with the outsole 1, e.g. made of polyethylene, and the side steel edges 2.
  • the inside of the ski is laterally and upwards from a shell 3 made of unreinforced Plastic enclosed.
  • the inner bearing Construction of the ski is done with a hollow body 4 Walls 5,6 made of fiber-reinforced thermoplastic or thermosetting plastic.
  • the inner hollow body 4 fills the interior between the top shell 3 and the lower assembly 1.2 such that the Outer walls 5 on the inner walls of the shell 3 or lower assembly 1.2.
  • the hollow body 4 has also vertical partition walls 6, which the Interior of the hollow body 4 in three air-filled hollow chambers divide.
  • a transparent for the outsole 1 Polyethylene and also for the shell 3 a transparent Plastic, e.g. a UV stabilized thermoplastic, such as such as thermoplastic polyurethane or polyamide used.
  • a transparent synthetic resins e.g. Polyester resin or Epoxy resin used as a binder for the fiber inlays the fiber deposits entirely or predominantly consist of transparent glass fibers.
  • Such a ski could then be viewed from above 2 appearance, with the ski body in the areas A is transparent from top to bottom, while the edge zones B, furthermore the tip and end area C, D and the binding attachment area E appears opaque because of the Steel edges 2, also the tip and end protection made of metal and a reinforcement insert or binding attachment plate in the binding attachment area.
  • the Tip protection could e.g. also from a so-called Clip-on tip exist, this clip-on tip also can be at least partially transparent, in particular from transparent, preferably thermoplastic Plastic can exist.
  • FIG. 4 Additional dark vertical stripes characterize the appearance the transparent ski (Fig. 4), if like Fig. 3 can be seen, e.g. on the top of the inner Hollow body 4 longitudinal inserts 7 e.g. out Resin-bonded carbon fibers are arranged.
  • This Deposits 7 have a triangular shape in the case of FIG. 3 Cross section on and are over an intermediate wall 6 arranged.
  • FIGS. 5 and 6 also has in the embodiment the appearance of the transparent ski dark opaque stripes F, but now with flat strip-shaped inserts 8 between the top of the inner hollow body 4 and the shell 3 are formed.
  • FIGS. 5 and 6 in the rest of a glass fiber braid existing fiber reinforcements of the two lateral hollow chambers individual threads 9 made of carbon fibers braided, e.g. in an inclined position (helical), which then as a dark zigzag pattern or Cross pattern G appear.
  • the compressed air becomes overpressure removed in the hoses and the ski removed from the mold. After demolding, any will still be over the side surfaces of the lower component group protrude Cut off edges of the cover film.
  • the hoses from the cavities of the now cured hollow body for reuse be removed. If the tubes in the ski body must remain with regard to the effect according to the invention at least partially transparent be, e.g. are made of transparent polyamide.

Abstract

The invention concerns a ski having layers of transparent plastic material. The entire ski body, i.e. the ski itself, is transparent at least in given areas.

Description

Die Erfindung bezieht sich auf einen Ski oder ein Snowboard mit Schichten aus transparentem Kunststoff. Skier mit Schichten aus transparentem Kunststoff sind z.B. durch die FR-A 2 512 681 bekannt geworden.The invention relates to a ski or a snowboard with layers of transparent plastic. Skis with Layers of transparent plastic are e.g. through the FR-A 2 512 681 has become known.

Neben den technischen, insbesondere fahrtechnischen, Eigenschaften eines Skis gewinnt in zunehmendem Maße auch das Aussehen des Skis Einfluß auf die Kaufentscheidung. Dabei sind es verschiedene Mittel, auch technischer Art, die zur Beeinflussung des Aussehens des Skis eingesetzt werden. So z.B. werden bereits transparente Schichten als Deckschichten für die Ski-Oberseite oder als Laufflächenbeläge zum Schutz des Dekors oder von Dekorschichten eingesetzt, die entweder auf der Rückseite der transparenten Schicht oder unterhalb der transparenten Außenschicht angebracht sind.In addition to the technical, in particular technical driving properties a ski is increasingly winning that too Appearance of the ski influences the purchase decision. Here there are various means, including technical ones, that are used for Influencing the appearance of the ski can be used. So e.g. are already transparent layers as top layers for the top of the ski or as a tread surface for Protection of the decor or of decorative layers used either on the back of the transparent layer or are attached below the transparent outer layer.

Aufgabe der Erfindung ist es, den Einsatz von transparenten Skibauteilen zu erweitern, und zwar einerseits zur Beeinflussung des Aussehens des Skis und/oder anderseits um damit auch einen technischen Effekt zu erzielen.The object of the invention is to use transparent To expand ski components, on the one hand to Influencing the appearance of the ski and / or on the other to achieve a technical effect.

Dies wird erfindungsgemäß dadurch erreicht, daß der Ski oder das Snowboard zumindest bereichsweise senkrecht zur Laufflächenebene über seine ganze Querschnittshöhe transparent ist.Es ist also nicht bloß eine Oberflächenschicht oder Laufflächenschicht transparent, um darunter bzw. dahinter liegende Schriftzüge, Symbole oder Dekors erkennen zu können, sondern erfindungsgemäß ist der Ski oder das Snowboard in seiner Gesamtheit senkrecht zur Laufflächenebene über seine ganze Querschnittshöhe transparent, wobei dies jedoch nicht an allen Stellen des Skis der Fall sein muß (daher "zumindest bereichsweise"). Beispielsweise können Funktionsteile aus undurchsichtigem Material, vor allem Metall, wie bei Alpinskiern die Stahlkanten, Bindungsbefestigungsteile oder Verstärkungselemente Zonen bilden, die von der Transparenz ausgenommen sind. Es ist auch möglich, aus dekorativen Gründen oder zur Kennzeichnung opake, d.h. nicht transparente Einlagen im Skikörper anzubringen, die dann Kontrastzonen zu den transparenten Bereichen des Skis bilden.This is achieved in that the ski or the snowboard at least partially perpendicular to the Tread level transparent over its entire cross-sectional height So it's not just a surface layer or tread layer transparent to underneath or Recognize the lettering, symbols or decorations behind it to be able to, but according to the invention is the ski or that Snowboard in its entirety perpendicular to the tread plane transparent over its entire cross-sectional height, whereby however, this may not be the case in all areas of the ski must (therefore "at least in some areas "). For example, functional parts made of opaque material, especially metal, such as for alpine skis the steel edges, binding attachment parts or reinforcing elements form zones which are formed by that exclude transparency. It is also possible, for decorative reasons or for marking opaque, i.e. attaching non-transparent inserts in the ski body, which then contrast zones to the transparent ones Form areas of the ski.

"Transparent" im Sinne der Erfindung bedeutet nicht nur klar durchsichtig, sondern auch durchscheinend. Ein Maß für die Transparenz ist der Transmissionsgrad τ = Φd/Φo (Φo = auftreffende Strahlungsleistung, Φd = durchgehende Strahlungsleistung). Demnach sind im Sinne der Erfindung jene Stellen des Skis als "transparent" zu bezeichnen, wo der Transmissionsgrad im sichtbaren Spektralbereich von Null verschieden ist, beispielsweise bei mindestens 10 %, Vorzugsweise aber erheblich darüber liegt. Eine Lichtguelle, die sich z.B. unter der Lauffläche des Skis befindet, soll zumindest noch als Lichtschein auf der Skioberfläche wahrgenommen werden. Die Transparenz kann auch eine "farbige" sein, muß sich also nicht über die volle Breite des sichtbaren Spektrums erstrecken. Anderseits sind aber Verfärbungen durch Strahlung (Licht, UV) oder Alterung eher unerwünscht. Es sollen daher gegenüber Strahlung und Alterung hinsichtlich ihrer Transparenz möglichst stabile transparente Werkstoffe verwendet werden."Transparent" in the sense of the invention means not only clear, but also translucent. A measure of transparency is the degree of transmission τ = Φ d / Φ O (Φ o = incident radiation power, Φ d = continuous radiation power). Accordingly, within the meaning of the invention, those parts of the ski are to be referred to as "transparent" where the degree of transmission in the visible spectral range is different from zero, for example at least 10%, but is preferably considerably higher. A source of light that is located, for example, under the running surface of the ski should at least still be perceived as a glow on the ski surface. The transparency can also be "colored", so it does not have to extend across the full width of the visible spectrum. On the other hand, discoloration due to radiation (light, UV) or aging is rather undesirable. Transparent materials that are as stable as possible with respect to radiation and aging should therefore be used with regard to their transparency.

Im Gegensatz zum erwähnten bekannten Stand der Technik genügt es gemäß der Erfindung nicht, daß nur die Oberflächenschichten aus transparentem Kunststoff bestehen, sondern es müssen auch die inneren Bauteile zumindest bereichsweise transparent sein, so z.B. die tragenden Schichten, die aus glasfaserverstärktem Kunststoff bestehen können, in dem transparente Glasfasern mit transparentem Kunstharz gebunden sind. Wenn die Verstärkungseinlagen teils aus transparenten Glasfasern und teils aus opaken Carbonfasern bestehen, können ebenfalls besondere technische und gestalterische Effekte erzielt werden. Die Kernzonen des Skis kann man entweder durch Verwendung von transparentem Kernwerkstoff oder dadurch transparent gestalten, daß innere Hohlräume gebildet werden. Dazu kann z.B. der tragende Skikörper aus ein oder mehreren Hohlkörpern gebildet werden, deren Wände (mindestens teilweise) aus transparentem glasfaserverstärktem Kunststoff bestehen. Eine andere Möglichkeit wäre die Anordnung eines Wabenkerns mit stehenden Wabenzellwänden, die auch dann einen Durchblick senkrecht zur Skilauffläche gestatten, wenn die Wabenzellwände selbst nicht aus transparentem Material bestehen. Selbstverständlich können aber die Wabenzellwände auch aus - gegebenenfalls glasfaserverstärktem - Kunststoff bestehen.In contrast to the known prior art mentioned According to the invention, it is not sufficient that only the surface layers consist of transparent plastic, but also the inner components at least be transparent in some areas, e.g. the bearing Layers made of glass fiber reinforced plastic can exist in the transparent glass fibers with transparent resin are bound. If the reinforcement inserts partly made of transparent glass fibers and partly consist of opaque carbon fibers also special technical and design Effects are achieved. The core zones of the ski can be seen either by using transparent core material or make it transparent that inner Cavities are formed. For this, e.g. the supporting one Ski body formed from one or more hollow bodies whose walls (at least partially) are made of transparent glass fiber reinforced plastic. A another possibility would be the arrangement of a honeycomb core with standing honeycomb cell walls, which even then one Allow view perpendicular to the ski surface, if the honeycomb cell walls themselves are not made of transparent Material. Of course, they can Honeycomb cell walls also made of glass fiber reinforced, if necessary - Made of plastic.

Auch für allfällige Klebstoffe, die zur Verbindung der einzelnen Schichten zum Einsatz gelangen, gilt das Erfordernis der Transparenz, wobei allerdings zonenweise auch nicht transparente Klebstoffe Verwendet werden können.Also for any adhesives used to connect the individual layers are used, that applies Requirement of transparency, although in zones also used non-transparent adhesives can be.

Die Erfindung ermöglicht nicht nur die Herstellung von Skiern von bisher nicht bekanntem Aussehen, sondern gewährt auch einen Einblick in das Skiinnere, um allfällige Verarbeitungsfehler festzustellen, z.B. eine fehlerhafte Orientierung der Glasfasern oder von Luftblasen im ausgehärteten Kunstharz. The invention not only enables the production of Skis of previously unknown appearance, but also gives an insight into the inside of the ski to Determine processing errors, e.g. a incorrect orientation of the glass fibers or air bubbles in hardened synthetic resin.

Faserverbundkunststoffe mit gerichteten Verstärkungsfasern können ihre hervorragenden Werkstoffeigenschaften wie hohe Festigkeit, Steifigkeit und Korrosionsbeständigkeit nur dann völlig ausspielen, wenn es gelingt, die Fasern entsprechend der Belastung zu orientieren. Bereits kleine Abweichungen von Faserrichtung zu Belastungsrichtung bedingen erhebliche Einbußen in der Festigkeit des Bauteiles. Die Kontrolle der richtigen Orientierung der Verstärkungsfasern während der Skiherstellung scheiterte bisher entweder aus technologischen Gründen oder auch daran, daß die einzelnen Skibauteile keine Durchsicht erlaubten (undurchsichtig waren). Man hat dann bewußt die Faserverbundwerkstoffe überdimensioniert, um einen möglichen Verlust an Festigkeit zu kompensieren, allerdings zu Lasten des Gesamtgewichtes.Fiber composite plastics with directional reinforcement fibers can their excellent material properties such as high strength, rigidity and corrosion resistance only fully play when it is succeeds in increasing the fibers according to the load orientate. Even small deviations from the direction of the fibers to the direction of loading cause considerable losses in the strength of the component. The control the correct orientation of the reinforcing fibers so far either failed during ski making for technological reasons or because the individual ski components were not allowed to be viewed (were opaque). Then you have consciously Fiber composite materials oversized to one to compensate for possible loss of strength, however at the expense of the total weight.

Der Bau eines an sich transparenten Skis erlaubt die laufende Kontrolle der Faserorientierungen und ermöglicht dadurch den optimierten Einsatz von Faserverbundwerkstoffen, der wiederum für Leichtbauweisen notwendig ist.The construction of a ski that is transparent in itself allows that ongoing control of fiber orientations and enables thereby the optimized use of fiber composite materials, which in turn is necessary for lightweight construction is.

Die Erfindung läßt sich sowohl auf alle Gattungen von Skiern (Alpinskier, Langlaufskier, Wasserskier etc.) anwenden, wobei vom Begriff Ski auch Snowboards umfaßt sind.The invention can be applied to all types of Skis (alpine skis, cross-country skis, water skis etc.) apply, with the term ski also Snowboards are included.

Die Erfindung wird nachstehend anhand der Zeichnung durch ein Ausführungsbeispiel näher erläutert.The invention is described below with reference to the drawing explained in more detail by an embodiment.

Fig. 1, 3 und 5 zeigen Skiquerschnitte verschiedener Ausführungsbeispiele und Fig. 2, 4 und 6 die dazugehörigen Ansichten des Skis in Draufsicht. 1, 3 and 5 show ski sections of different Embodiments and Fig. 2, 4 and 6 the associated Top views of the ski.

Fig. 1 zeigt im Querschnitt einen Ski, den man bei entsprechender Materialwahl im Sinne der Erfindung als transparenten Ski ausbilden kann.Fig. 1 shows in cross section a ski that one at appropriate choice of materials in the sense of the invention as can train transparent skis.

Der Ski gemäß Fig. 1 gehört zur Gattung der Schalenskier und besteht aus einer flachen unteren Baugruppe mit der Laufsohle 1, z.B. aus Polyethylen, und den seitlichen Stahlkanten 2. Das Innere des Skis ist seitlich und nach oben von einer Schale 3 aus unverstärktem Kunststoff umschlossen. Die innere tragende Konstruktion des Skis wird durch einen Hohlkörper 4 mit Wänden 5,6 aus faserverstärktem thermoplastischem oder duroplastischem Kunststoff gebildet. Der innere Hohlkörper 4 füllt den Innenraum zwischen der oberen Schale 3 und der unteren Baugruppe 1,2 derart aus, daß die Außenwände 5 an den Innenwänden der Schale 3 bzw. der unteren Baugruppe 1,2 anliegen. Der Hohlkörper 4 weist auch noch senkrechte Zwischenwände 6 auf, die das Innere des Hohlkörpers 4 in drei luftgefüllte Hohlkammern unterteilen.The ski according to FIG. 1 belongs to the type of shell skis and consists of a flat lower assembly with the outsole 1, e.g. made of polyethylene, and the side steel edges 2. The inside of the ski is laterally and upwards from a shell 3 made of unreinforced Plastic enclosed. The inner bearing Construction of the ski is done with a hollow body 4 Walls 5,6 made of fiber-reinforced thermoplastic or thermosetting plastic. The inner hollow body 4 fills the interior between the top shell 3 and the lower assembly 1.2 such that the Outer walls 5 on the inner walls of the shell 3 or lower assembly 1.2. The hollow body 4 has also vertical partition walls 6, which the Interior of the hollow body 4 in three air-filled hollow chambers divide.

Um die erfindungsgemäße Transparenz des Skikörpers zu erreichen, wird für die Laufsohle 1 ein transparentes Polyethylen und auch für die Schale 3 ein transparenter Kunststoff, z.B. ein UV-stabilisierter Thermoplast, wie etwa thermoplastisches Polyurethan oder Polyamid, verwendet. Auch für die Wände 5,6 des Hohlkörpers 4 werden transparente Kunstharze, z.B. Polyesterharz oder Epoxydharz als Bindemittel für die Fasereinlagen verwendet, wobei die Fasereinlagen zur Gänze oder vorwiegend aus transparenten Glasfasern bestehen.To the transparency of the ski body according to the invention achieve a transparent for the outsole 1 Polyethylene and also for the shell 3 a transparent Plastic, e.g. a UV stabilized thermoplastic, such as such as thermoplastic polyurethane or polyamide used. Also for the walls 5, 6 of the hollow body 4 transparent synthetic resins, e.g. Polyester resin or Epoxy resin used as a binder for the fiber inlays the fiber deposits entirely or predominantly consist of transparent glass fibers.

Ein solcher Ski könnte dann in einer Draufsicht ein Aussehen gemäß Fig. 2 aufweisen, wobei der Skikörper in den Bereichen A von oben nach unten transparent ist, während die Randzonen B, ferner der Spitzen- und Endbereich C,D sowie der Bindungsbefestigungsbereich E undurchsichtig (opak) erscheint, und zwar infolge der Stahlkanten 2, ferner des Spitzen- und Endenschutzes aus Metall und einer Verstärkungseinlage bzw. Bindungsbefestigungsplatte im Bindungsbefestigungsbereich. Der Spitzenschutz könnte z.B. auch aus einer sogenannten Aufsteckspitze bestehen, wobei auch diese Aufsteckspitze mindestens teilweise transparent sein kann, insbesondere aus transparentem, Vorzugsweise thermoplastischem Kunststoff bestehen kann.Such a ski could then be viewed from above 2 appearance, with the ski body in the areas A is transparent from top to bottom, while the edge zones B, furthermore the tip and end area C, D and the binding attachment area E appears opaque because of the Steel edges 2, also the tip and end protection made of metal and a reinforcement insert or binding attachment plate in the binding attachment area. Of the Tip protection could e.g. also from a so-called Clip-on tip exist, this clip-on tip also can be at least partially transparent, in particular from transparent, preferably thermoplastic Plastic can exist.

Zusätzliche dunkle Längsstreifen prägen das Erscheinungsbild des transparenten Skis (Fig. 4), wenn wie aus Fig. 3 ersichtlich, z.B. auf der Oberseite des inneren Hohlkörpers 4 längsverlaufende Einlagen 7 z.B. aus kunstharzgebundenen Carbonfasern angeordnet sind. Diese Einlagen 7 weisen im Falle der Fig. 3 einen dreieckförmigen Querschnitt auf und sind über einer Zwischenwand 6 angeordnet.Additional dark vertical stripes characterize the appearance the transparent ski (Fig. 4), if like Fig. 3 can be seen, e.g. on the top of the inner Hollow body 4 longitudinal inserts 7 e.g. out Resin-bonded carbon fibers are arranged. This Deposits 7 have a triangular shape in the case of FIG. 3 Cross section on and are over an intermediate wall 6 arranged.

Auch beim Ausführungsbeispiel nach Fig. 5 und 6 weist das Erscheinungsbild des transparenten Skis dunkle opake Streifen F auf, die jetzt aber durch flache streifenförmige Einlagen 8 zwischen der Oberseite des inneren Hohlkörpers 4 und der Schale 3 gebildet werden. Außerdem sind beim Ausführungsbeispiel nach Fig. 5 und 6 in den im übrigen aus einem Glasfaser-Schlauchgeflecht bestehenden Faserverstärkungen der beiden seitlichen Hohlkammern einzelne Fäden 9 aus Carbonfasern mitgeflochten, z.B. in Schräglage (schraubenlinienförmig), die dann als dunkles Zickzackmuster bzw. Kreuzmuster G in Erscheinung treten. 5 and 6 also has in the embodiment the appearance of the transparent ski dark opaque stripes F, but now with flat strip-shaped inserts 8 between the top of the inner hollow body 4 and the shell 3 are formed. In addition, in the embodiment of FIGS. 5 and 6 in the rest of a glass fiber braid existing fiber reinforcements of the two lateral hollow chambers individual threads 9 made of carbon fibers braided, e.g. in an inclined position (helical), which then as a dark zigzag pattern or Cross pattern G appear.

Die Herstellung eines Skis gemäß den dargestellten ausführungsbeispielen kann unter Verwendung einer aus zwei Formhälften bestehenden Form durchgeführt werden, in deren Formhohlraum die Formgebung des Skis erfolgt, wobei folgende Verfahrensschritte vorgesehen sind:

  • a) in die Vertiefung der ersten (unteren) Formhälfte werden die Bauteile der unteren Baugruppe (Laufsohle, Stahlkanten) eingelegt;
  • b) mit Kunstharz imprägnierte Faserstoff-Flächengebilde in Röhrenform werden mit innenliegenden Schläuchen aus luftdichtem Material versehen und in der Form positioniert, z.B. auf die in die erste Formhälfte eingelegten Bauteile der unteren Baugruppe aufgelegt;
  • c) ferner wird die gegebenenfalls Vorgeformte Deckfolie aus Kunststoff in der Form positioniert;
  • d) es wird die zweite (obere) Formhälfte mit einem der Seiten- und Oberflächenkontur des Skikörpers entsprechenden Formhohlraum auf die erste Formhälfte aufgelegt;
  • e) die innenliegenden, luftdichten Schläuche innerhalb der Kunstharz-Faserstoff-Röhre(n) werden mit Preßluft aufgeblasen, wobei sie sich dehnen, und auch die Kunstharz-Faserstoff-Röhre(n) gedehnt wird (werden), und sich die Folie an die Forminnenwandung der zweiten Formhälfte anlegt;
  • f) das Kunstharz der Kunstharz-Faserstoff-Röhre(n) wird unter Aufrechterhaltung des Preßluft-Innendruckes in dem bzw. den innenliegenden, luftdichten Schläuchen und gegebenenfalls unter Wärmezufuhr ausgehärtet.
    • The manufacture of a ski in accordance with the illustrated exemplary embodiments can be carried out using a mold consisting of two mold halves, in the mold cavity of which the ski is shaped, the following method steps being provided:
  • a) the components of the lower assembly (outsole, steel edges) are inserted into the recess of the first (lower) mold half;
  • b) impregnated fibrous sheet-like structures are provided with inner tubes made of airtight material and positioned in the mold, for example placed on the components of the lower assembly inserted into the first mold half;
  • c) the optionally preformed plastic cover film is also positioned in the mold;
  • d) the second (upper) mold half is placed on the first mold half with a mold cavity corresponding to the side and surface contour of the ski body;
  • e) the inner, airtight tubes within the synthetic resin fiber tube (s) are inflated with compressed air, whereby they expand, and the synthetic resin fiber tube (s) is (are) stretched, and the film adheres to the Mold inner wall of the second mold half;
  • f) the synthetic resin of the synthetic resin fiber tube (s) is cured while maintaining the compressed air internal pressure in the internal air-tight hoses and, if appropriate, with the addition of heat.

    • Nach Beendigung des Härtevorganges wird der Preßluft-Überdruck in den Schläuchen beseitigt und der Ski entformt. Nach dem Entformen werden allfällige noch über die Seitenflächen der unteren Bauteilgruppe überstehende Ränder der Deckfolie abgeschnitten. Bei entsprechender Vorsorge an der Skispitze und/oder dem Skihinterende können die Schläuche aus den Hohlräumen der nunmehr ausgehärteten Hohlkörper zwecks Wiederverwendung entfernt werden. Wenn die Schläuche im Skikörper verbleiben, müssen sie im Hinblick auf den erfindungsgemäßen Effekt mindestens teilweise transparent sein, z.B. aus transparentem Polyamid bestehen.After completion of the hardening process, the compressed air becomes overpressure removed in the hoses and the ski removed from the mold. After demolding, any will still be over the side surfaces of the lower component group protrude Cut off edges of the cover film. With appropriate Prevention at the ski tip and / or the rear of the ski can the hoses from the cavities of the now cured hollow body for reuse be removed. If the tubes in the ski body must remain with regard to the effect according to the invention at least partially transparent be, e.g. are made of transparent polyamide.

    Die dargestellten Ausführungsbeispiele von transparenten Skiern sowie das beschriebene Beispiel eines möglichen Herstellungsverfahrens sind selbstverständlich nicht in einschränkendem Sinne zu verstehen, sondern eben nur einzelne Beispiele von zahlreichen Möglichkeiten, den Erfindungsgedanken eines transparenten Skis zu verwirklichen.The illustrated embodiments of transparent Skis as well as the described example of a possible Manufacturing processes are a matter of course not to be understood in a restrictive sense, but just individual examples of numerous possibilities, the inventive idea of a transparent ski to realize.

    Claims (4)

    1. A ski or snowboard having layers of transparent plastic material, characterised in that the ski or snowboard is transparent at least in a region-wise manner perpendicularly to the plane of the running surface over the entire cross-sectional height of the ski.
    2. A ski or snowboard as set forth in claim 1, characterised in that the load-bearing internal components (4, 5, 6) of the ski or snowboard at least partially comprise transparent glass fiber-reinforced plastic material.
    3. A ski or snowboard as set forth in claim 1 or 2, characterised in that the ski or snowboard has opaque inserts (7, 8, 9) in a zone-wise manner.
    4. A ski or snowboard as set forth in one of claims 1 through 3, characterised in that the load-bearing body (4) is formed from one or more hollow bodies whose walls (5, 6) at least partially comprise transparent glass fiber-reinforced plastic material.
    EP95916497A 1994-04-29 1995-04-27 Ski Expired - Lifetime EP0706411B1 (en)

    Priority Applications (1)

    Application Number Priority Date Filing Date Title
    SI9530144T SI0706411T1 (en) 1994-04-29 1995-04-27 Ski

    Applications Claiming Priority (3)

    Application Number Priority Date Filing Date Title
    AT903/94 1994-04-29
    AT90394 1994-04-29
    PCT/AT1995/000083 WO1995029743A1 (en) 1994-04-29 1995-04-27 Ski

    Publications (2)

    Publication Number Publication Date
    EP0706411A1 EP0706411A1 (en) 1996-04-17
    EP0706411B1 true EP0706411B1 (en) 1998-07-29

    Family

    ID=3502507

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP95916497A Expired - Lifetime EP0706411B1 (en) 1994-04-29 1995-04-27 Ski

    Country Status (8)

    Country Link
    EP (1) EP0706411B1 (en)
    JP (1) JPH09500315A (en)
    AT (1) ATE168895T1 (en)
    CA (1) CA2165677A1 (en)
    DE (1) DE59502962D1 (en)
    FI (1) FI956301A (en)
    NO (1) NO955148D0 (en)
    WO (1) WO1995029743A1 (en)

    Families Citing this family (6)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US5687983A (en) * 1994-10-27 1997-11-18 Gsi, Inc. Light weight ballet skis and method of manufacture
    US5560632A (en) * 1994-10-27 1996-10-01 Gsi, Inc. Ballet ski
    DE29705403U1 (en) * 1997-03-25 1997-05-28 Oliver Ritzinger Gliding board
    DE19712569A1 (en) 1997-03-25 1998-10-01 Boards Unlimited Sportartikel Sports board, such as snow board
    FR2983414B1 (en) 2011-12-05 2013-11-22 Rossignol Sa SNOWBOARD BOARD ON SNOW
    FR2983415B1 (en) 2011-12-05 2015-02-20 Rossignol Sa SLIDING BOARD STRUCTURE ELEMENT ON SNOW, AND SLIDING BOARD INCORPORATING SUCH ELEMENT

    Family Cites Families (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2512681A1 (en) * 1981-03-02 1983-03-18 Pillot Francoise SKI SAND - SAND SKI
    US5397636A (en) * 1991-12-11 1995-03-14 Tonen Corporation Hybrid laminated prepreg and ski pole shaft using the same
    FR2700273B1 (en) * 1993-01-12 1995-03-31 Salomon Sa Method of decorating a ski top.
    FR2702668B1 (en) * 1993-03-16 1995-04-28 Rossignol Sa Ski, or other board for gliding on snow, and its manufacturing process.
    WO1994028984A1 (en) * 1993-06-09 1994-12-22 Kästle Aktiengesellschaft Ski

    Also Published As

    Publication number Publication date
    WO1995029743A1 (en) 1995-11-09
    FI956301A0 (en) 1995-12-28
    ATE168895T1 (en) 1998-08-15
    FI956301A (en) 1995-12-28
    EP0706411A1 (en) 1996-04-17
    CA2165677A1 (en) 1995-11-09
    DE59502962D1 (en) 1998-09-03
    NO955148L (en) 1995-12-18
    JPH09500315A (en) 1997-01-14
    NO955148D0 (en) 1995-12-18

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