EP0650747B1 - Verfahren zum Herstellen eines Skis in einer Form - Google Patents

Verfahren zum Herstellen eines Skis in einer Form Download PDF

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Publication number
EP0650747B1
EP0650747B1 EP94420240A EP94420240A EP0650747B1 EP 0650747 B1 EP0650747 B1 EP 0650747B1 EP 94420240 A EP94420240 A EP 94420240A EP 94420240 A EP94420240 A EP 94420240A EP 0650747 B1 EP0650747 B1 EP 0650747B1
Authority
EP
European Patent Office
Prior art keywords
ski
fibrous
intended
reinforcing layer
mold
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
EP94420240A
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English (en)
French (fr)
Other versions
EP0650747A1 (de
Inventor
François Jodelet
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.)
Skis Rossignol SA
Original Assignee
Skis Rossignol SA
Rossignol SA
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 Skis Rossignol SA, Rossignol SA filed Critical Skis Rossignol SA
Publication of EP0650747A1 publication Critical patent/EP0650747A1/de
Application granted granted Critical
Publication of EP0650747B1 publication Critical patent/EP0650747B1/de
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
    • 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
    • A63C5/00—Skis or snowboards
    • A63C5/12—Making thereof; Selection of particular materials
    • A63C5/126—Structure of the core

Definitions

  • the invention relates to a new method for manufacturing a ski in shape.
  • It relates more particularly to an improved process for the manufacture of a ski in a single step, intended to receive various materials, able to communicate specific properties to skiing; she relates more particularly to an improved process of the type question, in which we can vary the relative position of the reinforcement higher than the outside surface of the ski.
  • the process advantageously makes it possible to carry out in a single step a ski in shape, especially when the upper set is made up by a single shell forming a protective and decorative layer.
  • This technique remains expensive, since it requires the use of at least two distinct phases, namely the making of the body and its assembly with the lower assembly forming the sole.
  • this technique requires the use of a rigid core previously produced, to serve as a punch.
  • the bottom walls of the mold have a hollow or protrusion which, when the mold, can be partially filled (see figure 14) by a plate added, in particular in a visco-elastic material, inserted before punching between the sheet intended to form the shell and a fibrous reinforcement.
  • a plate added in particular in a visco-elastic material
  • the filling the hollow with the visco-elastic plate is an operation delicate, particularly due to the risks of air inclusion, formation small cavities, which can cause defects, in particular heterogeneity of skiing at this location. These skis are made always in several separate stages and therefore remains expensive.
  • this technique makes it possible to position an added plate in a cavity, on the other hand, it does not allow positioning inside the ski reinforcing elements with respect to the faces of the ski, except for machining the core beforehand and using filling layers thick.
  • the invention overcomes these drawbacks. It aims at a process of manufacture of a ski in a single stage of molding and forming, which allows you to make skis whose edges and top can have complex shapes, such as reliefs, and whose elements of mechanization can be arranged at desired locations by compared to the ski faces, to obtain specific characteristics.
  • the invention relates more particularly to a process in a single stage, in which the faces of the ski have varied reliefs without the internal fibrous reinforcement elements follow the accentuated forms of these reliefs.
  • the invention also relates to a method for producing a ski in a single step, in which the reinforcing elements are positioned by compared to the neutral fiber of the ski, to obtain characteristics appropriate in predetermined locations.
  • the invention consists, in a ski manufacturing process in one step by pushing effect during expansion of the filling foam, to be provided on the walls of the cover, and no longer on the bottom of the mold, at least one relief, then at fill this relief with a plate of suitable material when the gradual expansion of the foam forming the heart.
  • the positioning of the plate is carried out gradually and with precision, this which avoids the risks of air inclusion, formation of small cavities and ruptures of the fibrous reinforcing element, and gives the assembly a good homogeneity.
  • the top of the ski has a relief defining an internal cavity, and this cavity is filled by the characteristic element formed by a damping assembly.
  • the characteristic relief of the invention can be arranged as well on the edges only on the top of the ski. We position it advantageously to a belly of vibrations, especially just downstream of the spatula and in upstream of the skate area. We can also position this relief just in the center of the skate area, so as to give extra thickness in this sector.
  • a flexible waterproof membrane such as by example a sheath
  • a stretchable plastic material in which injects the fluid intended to push these elements against the walls of the mold.
  • Figure 1 is a schematic sectional representation of a mold, shown in the open position, equipped in accordance with the invention.
  • Figure 2 is a schematic representation of the same mold in closed position.
  • Figure 3 is a longitudinal sectional representation of a ski according to the invention.
  • Figure 4 is an improved embodiment of a mold in closed position in accordance with a preferred embodiment of the invention (with cavity).
  • Figure 5 is a schematic perspective representation.
  • the mold comprises (see Figures 1 and 2) two parts, respectively a bottom (1) and a cover (2), whose side walls inclined (4,5) are intended to form the edges, and whose wall horizontal upper (3) forms the top of the ski.
  • a sheath is inserted waterproof, designated by reference (25), tubular, made of plastic stretchable, laid flat on the lower assembly (10).
  • a plate additional (30) whether provisionally united or not by all known means, such as sewing, bonding or the like.
  • This plate (30) rigid, for example made of metal, follows (see figures) the shape of a half-moon, so as to avoid sudden deformation of the fibers of the material fibrous reinforcement (22), sudden deformation, which as we know, leads to a break in the fibers and consequently, a deterioration of mechanical properties.
  • the relative positioning of the upper reinforcement (22) of the ski both relative to the top of the ski, and especially compared to its neutral fiber.
  • this element additional rigid, is located longitudinally in the spatula areas (30) and / or heel (30 '), to modify the flexibility of the ski.
  • the horizontal internal wall (3) of the cover (2) has a cavity designated by reference (6).
  • the characteristic plate (30) When expanding, the characteristic plate (30) then gradually comes into place in the cavity (6) until it is completely filled, since its shape and its positioning on the fibrous reinforcing element (22) corresponds exactly to those of said cavity (6). Furthermore, once in place, this additional element (30) locally modifies as previously, the relative position of the upper reinforcement (22) relative to the neutral fiber.
  • the filling element of the cavity (6) forming the relief (40), is constituted by a damping assembly.

Landscapes

  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Photovoltaic Devices (AREA)
  • Stringed Musical Instruments (AREA)

Claims (7)

  1. Ein Verfahren zur Herstellung eines Skis in einer Form, wobei in einen einzigen Schritt, gleichzeitig Ausbildung und Formung stattfinden und welches umfaßt:
    auf den Boden einer zweiteiligen Form, bestehend aus Boden (1) und Deckel (2), eine untere Menge aus zusammengehörenden Materialien aufzubringen, welche eine Gleitfläche (11), Vierkantstähle (12, 12') und mindestens eine untere Verstärkungsschicht (13, 14) umfaßt;
    auf dieser unteren Menge aus zusammengehörenden Materialien (10), eine obere Verstärkungsschicht (22) anzuordnen, welche sich ihrerseits aus faserigen, mechanisch stabilisierenden Schichten zusammensetzt;
    auf diese faserige obere Verstärkungsschicht (22) eine Schutz- und Dekorationsschicht (21) aufzubringen, welche bestimmt ist, die drei anderen Außenseiten des Skis zu bilden nämlich wenigstens einen Teil der Ränder und der Oberseite, wobei ein Hohlraum entsteht;
    den Deckel (2) auf dem Boden (1) der Form zu verschließen;
    in dem zwischen der unteren Menge aus zusammengehörenden Materialien (10) und der oberen Verstärkungsschicht (22) ausgebildeten Hohlraum (50) eine Flüssigkeit zu injizieren, welche dazu bestimmt ist, die verschiedenen Teile gegen die Wände (3,4,5) der Form auszudehnen;
    und schließlich, abzukühlen und die Form zu öffnen, um den erhaltenen Ski zu entnehmen;
    dadurch gekennzeichnet, daß
    im Bereich zwischen der Schutz- und Dekorationsschicht (21) und wenigstens einer der faserigen, mechanisch verstärkenden Schichten, welche die obere Verstärkung (22) bilden, wenigstens ein zusätzliches Element (30) angeordnet wird, dessen konvexe gekrümmte Hauptfläche bestimmt ist, in Richtung der unteren Menge an zusammengehörenden Materialien (10) ausgerichtet zu werden, und daß besagtes zusätzliches Element (30) bestimmt ist, nach der Ausdehnung der Flüssigkeit, die relative Lage der oberen Verstärkungsschicht (22) bezüglich der Skiaußenflächen zu verändern und eine übermäßige Verformung der faserigen Schichten der oberen Verstärkungsschicht (22) zu verhindern.
  2. Verfahren nach Anspruch 1,
    dadurch gekennzeichnet, daß das zusätzliche Element (30) zwischen den faserigen, mechanisch stabilisierenden Schichten der oberen Verstärkung (22) vorgesehen ist.
  3. Verfahren nach Anspruch 1,
    dadurch gekennzeichnet, daß das zusätzliche Element (30) oberhalb der faserigen, mechanisch stabilisierenden Schichten der oberen Verstärkung (22) vorgesehen ist.
  4. Verfahren nach Anspruch 1,
    dadurch gekennzeichnet, daß die Schutz- und Dekorationsschicht eine einstückige thermoplastische Umhüllung (21) ist, welche die Form des Skis annimmt.
  5. Verfahren nach Anspruch 1,
    dadurch gekennzeichnet, daß die Oberseite der Skiumhüllung ein Relief (40) zeigt, das einen Hohlraum (6) auf der Innenseite der Schutzschicht definiert, den besagtes zusätzliches Element (30) ausfüllt, wobei die relative Lage der oberen faserigen Verstärkungselemente (22) bezüglich der Oberseite des Skis, ohne ein Brechen der Fasern dieses Elementes (22), verändert wird.
  6. Verfahren nach Anspruch 5,
    dadurch gekennzeichnet, daß ein Hohlraum (6) an der Innenseite (3) des Deckels (2) ausgespart wird und dafür vorgesehen ist, die Oberseite des Skis zu definieren, genau unterhalb des Teils, der dafür bestimmt ist, die Spitze zu bilden, und genau oberhalb des tragenden Bereiches, d.h. genau in dem Teil, wo sich im allgemeinen die Vorrichtung zur Schwingungsdämpfung befindet.
  7. Verfahren nach Anspruch 1,
    dadurch gekennzeichet, daß das zusätzliche Element (30) aus einem Material besteht, welches aus der Gruppe der für die Skiherstellung verwendeten üblichen Materialien gewählt wird, welche plastische Materialien, Holz, Metalle, zusammengesetzte Materialien und visko-elastische Materialien umfaßt.
EP94420240A 1993-09-07 1994-09-06 Verfahren zum Herstellen eines Skis in einer Form Expired - Lifetime EP0650747B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9310831A FR2709673B1 (fr) 1993-09-07 1993-09-07 Procédé pour la fabrication d'un ski en forme.
FR9310831 1993-09-07

Publications (2)

Publication Number Publication Date
EP0650747A1 EP0650747A1 (de) 1995-05-03
EP0650747B1 true EP0650747B1 (de) 1998-06-03

Family

ID=9450765

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94420240A Expired - Lifetime EP0650747B1 (de) 1993-09-07 1994-09-06 Verfahren zum Herstellen eines Skis in einer Form

Country Status (5)

Country Link
US (1) US5501825A (de)
EP (1) EP0650747B1 (de)
AT (1) ATE166792T1 (de)
DE (1) DE69410742T2 (de)
FR (1) FR2709673B1 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6117376A (en) * 1996-12-09 2000-09-12 Merkel; Michael Method of making foam-filled composite products
US6349961B1 (en) * 1999-06-15 2002-02-26 Jumbo Snowboards, Llp Composite molded snowboard with metal edges
US6612605B2 (en) 1999-09-29 2003-09-02 K-2 Corporation Integrated modular glide board
US6520529B1 (en) * 1999-09-29 2003-02-18 K-2 Corporation Integrated modular glide board
DE29921881U1 (de) * 1999-12-13 2000-02-03 Blizzard Gmbh Gleitbrett
FR2802438B1 (fr) * 1999-12-21 2002-05-31 Rossignol Sa Planche de glisse
FR2804611B1 (fr) * 2000-02-03 2002-10-11 Rossignol Sa Procede de fabrication d'une planche de glisse sur neige, dont la surface externe, inferieure ou superieure, comporte des parties en relief
AT411572B (de) * 2001-09-07 2004-03-25 Fischer Gmbh Gleitkörper, insbesondere ski sowie verfahren zur herstellung eines gleitkörpers, insbesondere für skier
FR2848868B1 (fr) * 2002-12-19 2007-01-19 Salomon Sa Planche de glisse ou de roulage
AT500213B1 (de) * 2003-04-23 2007-09-15 Atomic Austria Gmbh Schi
FR2865412B1 (fr) * 2004-01-28 2006-02-17 Skis Dynastar Planche de glisse sur neige pour enfants et procede de fabrication
AT501312B1 (de) * 2005-02-04 2009-05-15 Hexcel Holding Gmbh Verfahren zur herstellung eines gleitgeräts und gleitgerät
US7416401B2 (en) * 2005-06-13 2008-08-26 The Boeing Company Lightweight composite fairing bar and method for manufacturing the same
FR3038845B1 (fr) * 2015-07-17 2018-12-07 Rossignol Sa Planche de glisse
US11980806B2 (en) * 2022-04-05 2024-05-14 Peak Ski Company, LLC Skis with reinforcement layer cutout

Family Cites Families (21)

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Publication number Priority date Publication date Assignee Title
US4044083A (en) * 1973-10-29 1977-08-23 Amf Incorporated Method of making plastic ski
US3928106A (en) * 1974-05-14 1975-12-23 Molnar & Co Inc Method of manufacturing a ski
FI752865A (de) * 1975-10-15 1977-04-16 Karhu Titan Oy
US4250585A (en) * 1979-03-07 1981-02-17 Hart Ski Mfg. Co., Inc. Water skis having a reinforced, foamed-in-place, plastic hull bonded to an aluminum deck
JPS58163385A (ja) * 1982-03-20 1983-09-28 美津濃株式会社 インジエクシヨンスキ−板及びその製造方法
US4556375A (en) * 1982-09-30 1985-12-03 Texas Recreation Corporation Apparatus for making water skis
JPS6021775A (ja) * 1983-07-19 1985-02-04 美津濃株式会社 インジエクシヨンスキ−板の製造方法
DE3437865A1 (de) * 1983-10-21 1985-05-09 Kabushiki Kaisha Swallow Ski, Iiyama, Nagano Herstellungsverfahren fuer skier
US4706985A (en) * 1984-02-22 1987-11-17 Tristar Sports Inc. Alpine ski with selective reinforcement
DE3512267A1 (de) * 1985-04-03 1986-10-16 Klepper Beteiligungs Gmbh & Co Bootsbau Kg, 8200 Rosenheim Segelbrettkoerper und verfahren zu seiner herstellung
FR2620628B2 (fr) * 1987-02-27 1994-08-19 Salomon Sa Procede pour realiser un ski et ski fait selon ce procede
FR2611519B1 (fr) * 1987-02-27 1994-06-17 Salomon Sa Procede pour realiser un ski et ski realise selon ce procede
FR2615746B1 (fr) * 1987-05-27 1990-02-16 Rossignol Sa Ski de descente et procede de fabrication de ce ski
US5230844A (en) * 1987-09-04 1993-07-27 Skis Rossignol, S.A. Process for producing a complex elastic molded structure of the sandwich type
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.
FR2654644B1 (fr) * 1989-11-22 1992-03-13 Salomon Sa Procede de fabrication d'un ski injecte, et structure de ski obtenue par ce procede.
FR2654670A1 (fr) * 1989-11-23 1991-05-24 Rossignol Sa Procede pour la fabrication en une seule operation d'une structure moulee complexe, notamment un ski, et structure moulee complexe ainsi obtenue.
AT397209B (de) * 1990-09-27 1994-02-25 Rohrmoser Alois Skifabrik Ski mit einer räumlich profilierten oberseite
FR2679820A1 (fr) * 1991-07-31 1993-02-05 Rossignol Sa Procede pour la fabrication d'une structure moulee complexe, notamment d'un ski et structure moulee complexe ainsi obtenue.
FR2679821B1 (fr) * 1991-07-31 1993-10-22 Rossignol Sa Skis Procede pour la fabrication d'une structure moulee complexe, et notamment d'un ski, et structure moulee complexe ainsi obtenue.
FR2684011B1 (fr) * 1991-11-25 1994-01-07 Rossignol Sa Skis Planche de glisse pourvue d'un dispositif d'amortissement des vibrations.

Also Published As

Publication number Publication date
EP0650747A1 (de) 1995-05-03
FR2709673A1 (fr) 1995-03-17
ATE166792T1 (de) 1998-06-15
FR2709673B1 (fr) 1995-10-06
DE69410742T2 (de) 1998-12-10
DE69410742D1 (de) 1998-07-09
US5501825A (en) 1996-03-26

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