EP0706412B1 - Procédé pour la fabrication d'un ski - Google Patents

Procédé pour la fabrication d'un ski Download PDF

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Publication number
EP0706412B1
EP0706412B1 EP94912408A EP94912408A EP0706412B1 EP 0706412 B1 EP0706412 B1 EP 0706412B1 EP 94912408 A EP94912408 A EP 94912408A EP 94912408 A EP94912408 A EP 94912408A EP 0706412 B1 EP0706412 B1 EP 0706412B1
Authority
EP
European Patent Office
Prior art keywords
mould
synthetic resin
ski
mould half
tubes
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
EP94912408A
Other languages
German (de)
English (en)
Other versions
EP0706412A1 (fr
Inventor
Ullrich Metzler
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.)
Kastle AG
Original Assignee
Kastle AG
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 Kastle AG filed Critical Kastle AG
Priority to EP96112713A priority Critical patent/EP0747099A3/fr
Priority to SI9430022T priority patent/SI0706412T1/xx
Publication of EP0706412A1 publication Critical patent/EP0706412A1/fr
Application granted granted Critical
Publication of EP0706412B1 publication Critical patent/EP0706412B1/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 ski with the aid of a mold consisting of a first mold half and a second mold half, in the mold cavity of which the ski is shaped.
  • a shell-shaped upper part made of optionally fiber-reinforced plastic with flange-like side edges is produced in a specially provided shape, either together with the ski core or merely as a shell, the pre-manufactured ski upper part being connected to the likewise pre-manufactured lower part of the ski.
  • the enclosed empty space formed in this way is foamed after connection to the lower part of the ski to form a ski core.
  • a separate decorative layer applied to the shell is preferably provided for the decoration of the ski (EP-A 0 394 835).
  • Yet another known method provides that the multilayer shell material is placed in a flat configuration on the mold cavity of a lower mold, the edge regions of the flat shell material initially protruding laterally beyond the mold cavity, whereupon the shell material is pressed into and through the mold cavity with the aid of the prefabricated ski core the shell is brought into its final shape and finally connected to the lower part of the ski, for example by gluing (DE-C 38 03 483).
  • the compressed air overpressure in the hoses is removed and the ski is removed from the mold.
  • any edges of the cover film which still protrude beyond the side surfaces of the lower component group are cut off, if necessary in such a way that the hardened synthetic resin of the hollow body or the hollow body forms a gap-filling web between the lateral lower edge of the shell and the upper side of the lower flat assembly, preferably the Steel edge, forms.
  • the hoses can be removed from the cavities of the now hardened hollow bodies for reuse. However, these hoses can also remain inside the hollow chambers. If the cover film was provided with a protective film, this protective film is removed after the manufacturing process has ended.
  • the plastic cover sheet deformed into the upper shell must have sufficient flexibility, should therefore have a relatively small thickness, for example less than 1.0 mm, preferably about 0.5 mm, and should preferably be made of a plastic material with an elastic modulus below 5000 N / mm 2 , preferably from 1000 N / mm 2 to 3000 N / mm 2 .
  • Unreinforced, preferably thermoplastic plastics such as ABS copolymers or polyamide fall into this range.
  • a preferably fibrous structure impregnated with synthetic resin is used, wherein the fibrous structure can already be in a “seamless” tubular shape, for example as a tubular braid; otherwise you can also form a flat fibrous fabric, such as fabric or unidirectional layers, into a tube.
  • the fibers can be oriented in different directions, for example one Hose braid at an angle to the longitudinal extension of the tubes, possibly in conjunction with braided fiber strands that extend in the longitudinal extension of the tubes. When choosing the angle of the oblique threads, it must be taken into account that this angle changes when the inner airtight tubes are inflated.
  • glass fibers and / or carbon fibers or the like be used.
  • the synthetic resin with which the fibrous structure is impregnated can be a thermosetting reactive resin, for example polyester resin or epoxy resin.
  • Prepreg coils or prepreg tubes, in which the matrix material can be thermoplastic as well as thermosetting, can also be used for the synthetic resin-fiber material tubes.
  • the prepreg is already in a pre-hardened state. Even if one starts from several synthetic resin-fiber material tubes, one can achieve an integral (one-piece) supporting inner hollow body having a corresponding number of hollow chambers.
  • further reinforcement layers can also be inserted into the mold, for example made of fiber materials impregnated or already bound with synthetic resin and / or of light metal; these additional reinforcement layers are preferably coated with adhesive before insertion into the mold.
  • the inserts can serve to reinforce the belt layers and, like the synthetic resin-fiber tubes, extend essentially over the entire length of the ski or can also be inserts limited in the longitudinal direction of the ski, for example in the binding area to increase the screw pull-out strength.
  • the inlays can also be three-dimensional in shape, so that they serve as a damping or stabilizing element and, if appropriate, can be seen on the ski surface.
  • Hollow bodies or hollow chambers separated by partition walls can preferably have wedge-shaped or gusset-shaped inserts arranged above and / or below the partition walls, which reduce the buckling length of the partition walls.
  • the device used to carry out the method according to the invention consists, in addition to workstations, for dressing and printing the plastic cover film and for preparing the synthetic resin-fiber tubes with the inner airtight tubes essentially of a two-part form, one half of the form being a recess for receiving the components the lower assembly of the ski (outsole, steel edges) and the mold cavity of the other mold half is designed according to the three-dimensional side and / or surface contour of the ski. In principle, this corresponds to the known prior art.
  • a mold suitable for carrying out the method according to the invention must have a compressed air connection leading to the mold cavity, to which the airtight hoses arranged within the synthetic resin-fiber material tubes can be connected.
  • the lateral closing surfaces of the first mold half and the second mold half must be designed such that when the mold is closed, a gap limited by stops forms in that area of the closing surfaces which receives the edge zones of the cover film, the height of which is approximately equal to the thickness of the cover film .
  • protrusions projecting upwards on the closing surfaces of the first mold half can be formed, against which the edges of the cover sheet, which has been brought into a curved state, can be supported for temporary preservation of the curvature when the cover sheet is placed on the first mold half.
  • the outer edge regions of the closing surfaces of the mold halves should lie sealingly on one another when the mold is closed, it being advantageous if on the outer edge regions of the closing surfaces the first mold half and / or the second mold half separate sealing strips made of elastically deformable material, for example can be arranged from elastomeric plastic.
  • At least one of the mold halves should be heatable in order to harden the reaction resin.
  • Cold-curing reactive resin systems that do not require additional heat can also be used.
  • FIG. 1 shows the cross section of a ski according to the invention.
  • Fig. 2 also shows the cross section of a further embodiment of a ski according to the invention.
  • FIGS. 3-5 illustrate the method according to the invention, in each case cross sections of the manufacturing mold with the components of the ski located therein being shown.
  • 6 shows, in partial cross section, a further variant of a ski according to the invention.
  • FIG. 7 and 8 each show a further embodiment of a ski according to the invention in cross section.
  • 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 non-reinforced plastic, e.g. ABS or polyamide, enclosed.
  • the inner load-bearing structure of the ski is formed by a hollow body 4 with walls 5, 6 made of fiber-reinforced thermoplastic or thermosetting plastic, e.g. glass fiber reinforced polyester resin or epoxy resin.
  • the inner hollow body 4 fills the interior between the upper shell 3 and the lower assembly 1, 2 such that the outer walls 5 abut the inner walls of the shell 3 or the lower assembly 1, 2.
  • the hollow body 4 also has vertical partition walls 6 which divide the interior of the hollow body 4 into three air-filled hollow chambers 4 '.
  • the hollow body 4 extends essentially over the entire length of the ski. In the tip and end area, the hollow body 4 can optionally be replaced by special end components.
  • the flat lower component group again consists of the outsole 1 and the steel edges 2, but in addition there is an intermediate layer 7 which is continuous over the length of the ski and which is made of load-bearing material, for example of fiber-reinforced plastic or metal, or can consist of non-load-bearing material, for example of unreinforced plastic or wood.
  • load-bearing material for example of fiber-reinforced plastic or metal
  • non-load-bearing material for example of unreinforced plastic or wood.
  • the hollow body 4 has only a vertical partition 6, which divides the interior of the hollow body into two air-filled hollow chambers.
  • FIGS. 3-5 The method according to the invention for producing a ski according to FIG. 1 is explained with reference to FIGS. 3-5.
  • a cover film 8 made of plastic, e.g. made of ABS or polyamide, with a decoration.
  • the cover film can be transparent and is then e.g. screen printed, preferably on the inside of the finished ski.
  • the film thickness can e.g. 0.2 - 1.0 mm, preferably 0.5 - 0.6 mm.
  • the cover film 8 must have a sufficient length and width corresponding to the subsequent deformation.
  • the cover film can be a uniform film consisting of a single plastic or consist of areas of different or differently colored plastics which are, for example, integrally connected to one another. In the processing state, however, a cover film assembled in this way is also in one piece.
  • the components of the lower assembly of the ski namely the outsole 1 and the steel edges 2 are inserted into the recess 9 of the first mold half formed here as the lower mold 10.
  • These components 1, 2 can already be connected (glued) to one another before insertion into the recess 9 of the lower mold 10.
  • synthetic resin-fiber tubes 11 (in the illustrated case there are three) are then placed, for example made of tubular fibers made of glass fibers impregnated with polyester resin or epoxy resin, which are provided with inner tubes 12 made of airtight material .
  • the cover film 8 is then placed over the synthetic resin-fiber material tubes 11, whose side edges protrude laterally beyond the recess 9 of the lower mold and are supported on projections 13 of the lower mold.
  • the second mold half here the upper mold 14 is placed on the lower mold 10 and has a mold cavity corresponding to the side and surface contour of the ski body (FIG. 4).
  • Both the closing surfaces 15 of the lower mold 10 and the closing surfaces 16 of the upper mold 14 have sealing strips 17 and 18 on the outermost edge, which are made of an elastically yielding material, e.g. consist of an elastomeric plastic.
  • lateral gaps which open into the mold cavity are further formed by appropriate design of the closing surfaces 15, 16.
  • the lateral edge zones of the cover film 8 lie in this column.
  • the gap thickness is dimensioned such that the edge zones of the cover film 8 just fill the gap, but are not immovably clamped in the gap.
  • the hoses 12 are connected, for example, on one of the longitudinal ends of the mold cavity to a compressed air supply formed in one of the mold halves 10, 14.
  • the tubes 12 are inflated, they expand and the synthetic resin-fiber material tubes 11 are also expanded.
  • the edge zones of the cover film 8 located between the upper mold 14 and the lower mold 10 are at least partially pulled out of the edge gap, and the cover film 8 lies down without stretching or stretching and without distorting what is possibly attached to the cover film 8 Decor on the inner mold wall of the upper mold 14.
  • the synthetic resin-fibrous tubes 11 also experience their shape and position shown in FIG.
  • the synthetic resin being the Resin-fiber tubes can escape from the tubes due to the pressure exerted by the inflated hoses 12 and there is seamless contact with the inner wall of the cover film 8 and the components 1, 2 of the lower assembly of the ski and also between the individual resin-fibers.
  • the synthetic resin of the synthetic resin-fibrous tubes 11 also causes the adhesion with the cover film 8, the legs of the steel edges 2 and the inside of the outsole 1.
  • the synthetic resin emerging from the synthetic resin-fibrous tubes 11 also effects the adhesive connection (adhesive connection) between the steel edges 2 and the preferably flange-like outwardly bent edges of the cover sheet 8.
  • the synthetic resin can also penetrate between the legs and the outsole 1 and so also glue these two components, if the steel edges have not already been glued to the outsole 1 before insertion into the lower mold.
  • the three synthetic resin-fiber tubes 11 grow together into a single integral structure consisting of three hollow chambers.
  • the supply of heat for curing the synthetic resin takes place while maintaining the compressed air pressure in the hoses 12.
  • the supply of heat expediently begins at the same time as the expansion phase of the hoses 12, but it can also take place at different times.
  • the mold After curing, the mold is opened. Any protruding edges of the cover film 8 are cut off.
  • the cover film 8 is thus identical to the shell 3 shown in FIG. 1 and the synthetic resin-fiber material tubes 11 now form the integral hollow body 4 shown in FIG. 1 with the walls 5, 6 made of fiber-reinforced plastic and three hollow chambers.
  • the overpressure in the inner airtight hoses 12 can be removed.
  • the tubes 12 can be removed from the chambers of the hollow body, through corresponding openings in the area of the ski tip or the rear of the ski, these openings being subsequently closed, for example by a tip protector or end protector.
  • the wedge-shaped or gusset-shaped elements 19 can consist of prefabricated plastic profiles, for example of fiber-reinforced plastic in the form of a profile, or also of wood in a corresponding strip shape.
  • FIG. 7 relates to an embodiment of a ski according to the invention, again with a lower flat assembly consisting of outsole 1 and steel edges 2 and an outer shell 3 made of non-reinforced plastic and an inner three-chamber hollow body 4 with walls 5,6 made of fiber-reinforced plastic.
  • These elements or designs can be formed by prefabricated inserts or by controlling the pressure when the synthetic resin-fiber material tubes forming the hollow body 4 are inflated, synthetic resin emerging from the synthetic resin-fiber material composite forming the wedge-shaped or gusset-shaped elements 19.
  • a reinforcing insert 20 made of fiber-reinforced plastic or metal is provided between the outside of the cabbage body 4 and the inside of the shell 3 in order to reinforce the upper chord or to reinforce the binding attachment area.
  • this reinforcing insert 20 extends only over the width of the top of the three-chamber hollow body 4 and not also in the region of the side walls of the ski.
  • the reinforcement insert 20 can extend over the entire length of the ski or only over part of the length, e.g. extend over the binding attachment area.
  • the reinforcing insert 20 is preferably connected to the still flat cover film, e.g. glued.
  • the lower side edges of the shell 3 are bent out like a flange. Their underside is at a short distance, e.g. about 0.5 mm, over the top of the steel edges 2 (or generally over the top of the lower flat assembly).
  • the still flowable synthetic resin of the synthetic resin-glass fiber tubes of the hollow body 4 penetrates into the gap thus formed and, after hardening, forms a web 21 made of hardened synthetic resin, which connects the side edges of the shell particularly well 3 with the steel edges 2 guaranteed.
  • the basic structure of the ski again consists of the flat lower assembly (outsole 1, steel edges 2), the outer shell 3 and the inner supporting hollow body 4, which is again a three-chamber hollow body.
  • the shell 3 made of unreinforced plastic are strip-shaped reinforcing inserts 22 arranged from resin-bonded carbon fibers or metal.
  • Carbon fiber inserts 23 also contain the walls of the two lateral hollow chambers of the hollow body 4, which otherwise consists of a synthetic resin-glass fiber composite.
  • the thread-like carbon fiber inserts 23 can be braided into the glass fiber reinforcement of the synthetic resin-fiber tubes, which preferably consists of a tubular braid, and from which the hollow body 4 is formed.
  • the side chambers of the hollow body 4 are strengthened by the carbon fiber inserts in order to better support the edge region of the ski.
  • the lateral synthetic resin fiber tubes in comparison to the middle synthetic resin fiber tubes
  • an increased fiber content eg glass fiber content
  • the hollow body 4 extends essentially over the entire length of the ski. This preferably also applies to the other exemplary embodiments. However, if, as in FIG. 2, there is an additional load-bearing lower chord layer 7 and, as in FIG. 7, there is an additional load-bearing upper chord layer 19, it would be possible to use hollow bodies which are divided in the longitudinal direction of the ski, e.g. such that there is a separate hollow body in the front part and in the rear part of the ski and a solid core is present in the middle area (binding attachment area).
  • a trapezoidal ski cross-section and a correspondingly shaped mold cavity were chosen in particular for reasons of simplicity of illustration.
  • the invention also allows other cross-sectional shapes, for example curved upwards, and cross-sectional shapes that change almost arbitrarily in the longitudinal direction of the ski.
  • the method and construction according to the invention are particularly suitable for alpine skis, but can also be used on cross-country skis, snowboards and other skis or ski-like sports equipment.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Laminated Bodies (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Lubricants (AREA)
  • Moulding By Coating Moulds (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Golf Clubs (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Claims (6)

  1. Procédé pour la fabrication d'un ski à l'aide d'un moule composé d'un premier demi-moule et d'un second demi-moule et dont la cavité permet le façonnage du ski, caractérisé par les opérations suivantes :
    a) dans la cavité (9) du premier demi-moule (10) sont insérés les éléments (1, 2, 7) du sous-groupe inférieur ;
    b) une ou plusieurs structures surfaciques en matière fibreuse, imprégnée de résine, en forme de tubes (11) sont dotées de tuyaux flexibles (12) situés à l'intérieur et réalisés dans un matériau étanche à l'air et sont positionnées dans le moule ;
    c) de plus, une feuille de recouvrement (8) dotée, le cas échéant, d'une décoration et/ou d'une pellicule protectrice extérieure en plastique est positionnée dans le moule, les bords latéraux de la feuille de recouvrement (8) dépassant des bords latéraux de la cavité (9) du premier demi-moule (10) ;
    d) lors de la pose du second demi-moule (14) présentant une cavité correspondant aux contours des côtés et de la surface du corps du ski, sur le premier demi-moule (10), les bords de la feuille de recouvrement (8) qui dépassent, sont positionnés dans les fentes des bords entre le second demi-moule (14) et le premier demi-moule (10), de manière à remplir les fentes, mais ne sont pas serrés ;
    e) le ou les tuyaux flexibles (12) situés à l'intérieur et étanches à l'air, à l'intérieur du (des) tube(s) (11) en matière fibreuse, imprégnée de résine, sont gonflés avec de l'air comprimé, les tuyaux flexibles (12) s'allongeant et le (les) tube(s) (11) en matière fibreuse, imprégnée de résine, s'allongeant également, ce qui a pour effet de sortir au moins en partie de la fente du bord, les bordures de la feuille de recouvrement (8) se trouvant dans la fente du bord entre le second demi-moule (14) et le premier demi-moule (10) et de mettre la feuille (8) contre la paroi intérieure du second demi-moule (14), sans allongement ni étirement et sans déformation de la décoration éventuellement appliquée sur la feuille de recouvrement (8) ;
    f) la résine du (des) tube(s) (11) en matière fibreuse, imprégnée de résine, est durcie en maintenant la pression intérieure de l'air comprimé dans les tuyaux flexibles (12) situés à l'intérieur et étanches à l'air, et le cas échéant par un apport de chaleur.
  2. Procédé selon la revendication 1, caractérisé en ce que, lors de la pose sur les tubes (11) en matière fibreuse, imprégnée de résine, les bords de la feuilles de recouvrement (8) s'appuient sur les parties latérales en saillie (13) du premier demi-moule (10).
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que, avant l'insertion dans le moule, sur le côté, la feuille de recouvrement (8) est assemblée avec au moins une couche de renforcement réalisée dans un matériau porteur du point de vue de la solidité, de préférence dans un plastique ou un métal renforcé par fibres, dirigée vers l'intérieur lorsque le ski est fini.
  4. Dispositif d'exécution du procédé selon l'une quelconque des revendications 1 à 3, comportant un moule composé de deux demi-moules et de préférence chauffable, caractérisé en ce que les surfaces latérales de fermeture (15, 16) du premier demi-moule (10) et/ou du second demi-moule (14) sont réalisées de telle sorte que dans le cas où le moule est fermé, dans la zone des surfaces de fermeture (15, 16) qui reçoit les bordures de la feuille de recouvrement (8), il se forme une fente limitée par des butées et dont la hauteur est à peu près identique à l'épaisseur de la feuille de recouvrement (8), le cas échéant avec la pellicule protectrice.
  5. Dispositif selon la revendication 4, caractérisé en ce que des saillies (13) dépassant vers le haut sont réalisées sur les surfaces latérales de fermeture (15) du premier demi-moule (10).
  6. Dispositif d'exécution du procédé selon l'une quelconque des revendications 1 à 3, comportant un moule, composé de deux demi-moules, et de préférence chauffable, caractérisé en ce qu'un demi-moule (10), de préférence le premier, présente au moins un raccord pour l'air comprimé conduisant vers la cavité du moule et auquel les tuyaux flexibles (12) étanches à l'air et disposés à l'intérieur des tubes (11) en matière fibreuse, imprégnée de résine, peuvent être reliés.
EP94912408A 1993-06-09 1994-04-20 Procédé pour la fabrication d'un ski Expired - Lifetime EP0706412B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP96112713A EP0747099A3 (fr) 1993-06-09 1994-04-20 Ski
SI9430022T SI0706412T1 (en) 1993-06-09 1994-04-20 Method of manufacturing a ski

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT1119/93 1993-06-09
AT111993 1993-06-09
PCT/AT1994/000048 WO1994028984A1 (fr) 1993-06-09 1994-04-20 Ski

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP96112713.1 Division-Into 1994-04-20

Publications (2)

Publication Number Publication Date
EP0706412A1 EP0706412A1 (fr) 1996-04-17
EP0706412B1 true EP0706412B1 (fr) 1996-12-27

Family

ID=3506997

Family Applications (2)

Application Number Title Priority Date Filing Date
EP96112713A Withdrawn EP0747099A3 (fr) 1993-06-09 1994-04-20 Ski
EP94912408A Expired - Lifetime EP0706412B1 (fr) 1993-06-09 1994-04-20 Procédé pour la fabrication d'un ski

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP96112713A Withdrawn EP0747099A3 (fr) 1993-06-09 1994-04-20 Ski

Country Status (6)

Country Link
EP (2) EP0747099A3 (fr)
JP (1) JPH08510931A (fr)
AT (1) ATE146683T1 (fr)
CA (1) CA2164872A1 (fr)
DE (2) DE59401419D1 (fr)
WO (1) WO1994028984A1 (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2165677A1 (fr) * 1994-04-29 1995-11-09 Ullrich Metzler Ski
AT422U1 (de) * 1994-10-20 1995-10-25 Kaestle Ag Snowboard und verfahren zu seiner herstellung
FR2731160B1 (fr) * 1995-03-03 1997-05-16 Salomon Sa Procede de fabrication d'une structure moulee, notamment de ski ou de surf des neiges, par injection d'une mousse a expansion "in situ"
AT406341B (de) * 1995-11-15 2000-04-25 Kaestle Ag Verfahren zur herstellung eines formteils, insbesondere eines skis
DE19712569A1 (de) 1997-03-25 1998-10-01 Boards Unlimited Sportartikel Gleitboard
DE29705403U1 (de) * 1997-03-25 1997-05-28 Ritzinger, Oliver, Dipl.-Kaufm., 80331 München Gleitboard
AT412839B (de) * 2000-06-02 2005-08-25 Atomic Austria Gmbh Gleitvorrichtung, insbesondere schi, snowboard oder dgl.
AT500325A1 (de) 2002-11-06 2005-12-15 Tyrolia Technology Gmbh Gleitbrett, insbesondere ski
DE20316335U1 (de) * 2003-10-22 2004-03-11 Boards & More Ag, Clarens Snowboard
US12508493B2 (en) * 2022-01-31 2025-12-30 The Moss Companies Device and method of manufacturing for a snow and water sport sliding device with a pneumatic core
US11883736B2 (en) * 2022-01-31 2024-01-30 The Moss Companies Device and method of manufacturing for a snow and water sport sliding device with a pneumatic core

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT241311B (de) * 1961-05-03 1965-07-12 Haldemann S A Preßform zur Herstellung von Hohlskiern
FR2424470A1 (fr) * 1978-04-26 1979-11-23 Amf Inc Articles manufactures presentant des dimensions exterieures non uniformes ainsi que des surfaces incurvees, et procede de fabrication
FR2654645B1 (fr) * 1989-11-22 1992-08-28 Salomon Sa Procede de realisation d'un ski par injection, et structure de ski obtenue par ce procede.
DE4124519A1 (de) * 1991-07-24 1993-01-28 Reinhold Sommer Aus einem strangfoermigen hohlkoerper hergestellter ski
DE4402301A1 (de) * 1993-02-23 1994-09-01 Germina Sport Equip Gmbh Verfahren zur Herstellung eines Hohlskis und danach hergestellter Hohlski

Also Published As

Publication number Publication date
JPH08510931A (ja) 1996-11-19
CA2164872A1 (fr) 1994-12-22
WO1994028984A1 (fr) 1994-12-22
DE9421841U1 (de) 1996-10-10
EP0747099A3 (fr) 1997-02-05
EP0706412A1 (fr) 1996-04-17
ATE146683T1 (de) 1997-01-15
DE59401419D1 (de) 1997-02-06
EP0747099A2 (fr) 1996-12-11

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