EP0193519B1 - Ski - Google Patents

Ski Download PDF

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Publication number
EP0193519B1
EP0193519B1 EP86890032A EP86890032A EP0193519B1 EP 0193519 B1 EP0193519 B1 EP 0193519B1 EP 86890032 A EP86890032 A EP 86890032A EP 86890032 A EP86890032 A EP 86890032A EP 0193519 B1 EP0193519 B1 EP 0193519B1
Authority
EP
European Patent Office
Prior art keywords
ski
elements
center plane
inclination
longitudinal center
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
EP86890032A
Other languages
German (de)
English (en)
Other versions
EP0193519A2 (fr
EP0193519A3 (en
Inventor
Heinz Lampl
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.)
Head Sport GmbH
Original Assignee
Head Sportgeraete & Coohg GmbH
Head Sportgerate and Co oHG GmbH
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 Head Sportgeraete & Coohg GmbH, Head Sportgerate and Co oHG GmbH filed Critical Head Sportgeraete & Coohg GmbH
Publication of EP0193519A2 publication Critical patent/EP0193519A2/fr
Publication of EP0193519A3 publication Critical patent/EP0193519A3/de
Application granted granted Critical
Publication of EP0193519B1 publication Critical patent/EP0193519B1/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
    • A63C5/126—Structure of the core
    • 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 ski with a structure consisting of several layers with at least one tread layer, one surface layer and at least one multi-part intermediate layer, in which a plurality of elements with different hardness and / or bending elasticity, running in the longitudinal direction of the ski in the direction transverse to Longitudinal axis of the ski are arranged.
  • the multi-part intermediate layer consists of a plurality of side-by-side, upright, cuboid-shaped parts which are arranged parallel to the side cheeks of the ski which normally stand on the tread.
  • the invention now aims to provide a simple construction of the type mentioned, which is characterized by higher breaking strength, and which enables a ski to give a greater permanent deformation.
  • the invention consists in that the elements are inclined to the longitudinal median plane normal to the surface and converge to the surface layer and furthermore have an essentially parallelogram-shaped cross section.
  • bending of the ski does not act as a load that breaks the adhesive connection, but rather as a shear load on the adhesive point, and the possibility is created to absorb large bending moments without risk of breakage.
  • the type of connection also makes it possible to impart high permanent deformations to the ski without having an impact on the risk of breakage.
  • inclined, cross-sectionally parallelogram-shaped elements with different hardnesses and / or bending elasticities are provided means that a bend can be absorbed more easily by the more elastic or softer element without the connection of the elements as a whole being overstressed.
  • a bending stress here leads to an increase in the surface pressure of elements arranged next to one another, as a result of which high strength can be achieved with flexibility which can be chosen within wide limits. They can be essentially the same materials as they are Usually used in ski construction, used and by choosing different adhesives or glues, the bending or strength behavior can be decisively influenced. Due to the inclined elements, which have a parallelogram-shaped cross section, a larger contact surface of adjacent elements is created in comparison to elements standing upright at the same height of the ski, which further enhances the security of the adhesion of the adhesive.
  • the construction according to the invention can be applied to skis whose side cheeks are arranged at an angle other than 90 ° to the tread.
  • Skis of this type are distinguished by particularly favorable running properties, in particular by significant improvements when cornering.
  • the elements are arranged at an angle of 10 to 40 ° to the longitudinal median plane and glued together at the contact surfaces.
  • a particularly good elasticity in terms of pre-strength and breaking strength is obtained if the design is such that an element made of a harder and / or more rigid material is alternately connected to an element made of softer and / or more elastic material in the direction transverse to the longitudinal axis of the ski is. In this way, the stress is absorbed evenly distributed over the entire cross section of the intermediate layer and the risk of local overstressing is avoided.
  • the side walls can be formed in the usual way from plastic, for example from phenolic resin.
  • the elements adjacent to the side cheek can be made of harder material.
  • the side cheeks are advantageously connected to the elements adjacent to the side cheeks by means of an elastic adhesive joint. In this way, the intermediate layer is better protected against mechanical damage.
  • the flexibility behavior can be improved in that the elements are connected to one another in a shear-elastic manner.
  • Intermediate elements with higher compressibility transversely to the longitudinal direction of the ski can also be used advantageously.
  • Such elements with higher compressibility like other elements with different widths, in particular with a width that is narrower than the harder elements, can be formed.
  • the design can advantageously be made such that two near the longitudinal center plane are inclined opposite to the longitudinal center plane arranged elements are preferably made of softer and / or more elastic material to form a substantially triangular outline core. If the elements adjacent to the side cheeks are designed as hard elements, this results in an even number of elements on both sides of the longitudinal median plane, so that two softer elements remain in the middle.
  • the core which has an essentially triangular outline, can remain hollow or else can be filled with a plastic compound, in particular with polyurethane or an adhesive.
  • the inclination of the elements parallel to the inclination of the side cheeks of the ski can be selected in a particularly simple manner.
  • the design is such that the inclination of the elements on both sides of the longitudinal center plane is opposite in the same way. With such a design, a uniform absorption of the bending stresses over the entire cross-section and over the entire width of the intermediate layer is again achieved.
  • the individual elements can consist of different types of wood or plastic, in particular differently stiffened plastic.
  • the design according to the invention can also be used on skis with a conventional core, in which case only some elements adjacent to the side cheeks are arranged, whereas the core itself is manufactured in a conventional, conventional construction.
  • the core between elements inclined in opposite directions can have a substantially rectangular or trapezoidal cross section.
  • a core of this type can also be formed from elements that are placed in an upright position and have a rectangular cross section, the risk of lateral expansion in the event of bending stress being prevented due to the increase in compression due to the external elements that are inclined in opposite directions.
  • the core itself can also be designed in a known manner as a torsion box to increase its strength properties.
  • FIG. 1 shows a cross section through a first embodiment of a ski according to the invention
  • FIG. 2 shows an analogous cross section through a modified embodiment.
  • a ski 1 is shown.
  • the ski 1 has a tread 2 with a corresponding covering. Edges 3 are provided on the lateral edges of the ski.
  • the surface layer of the ski is labeled 4.
  • a damping layer 6 is advantageously provided between the tread 2 and the intermediate layer 5. Since the edges are embedded in the material of the ski, the resulting cavity is usually filled with another layer, especially made of aluminum or a glass fiber laminate. This layer is designated 7.
  • the intermediate layer 5 consists of individual elements 8 and 9 which have a parallelogram-like cross section, the elements which are denoted by 8 being formed from harder material than the elements which are denoted by 9. Overall, an even number of such elements are strung together on both sides of the longitudinal center plane 10, so that two elements 9 made of softer material collide in the middle to form a softer core.
  • the harder elements 8 are hiebei the Adjacent side walls 11, which are formed in the usual way from phenolic resin.
  • the elements arranged on both sides of the longitudinal center plane 10 are inclined in opposite directions to one another. With the longitudinal center plane 10, these elements enclose an angle of approximately 30 °.
  • the elements converge to the surface layer 4, a further layer 12 formed from glass fiber laminate or aluminum being provided between the intermediate layer 5 and the surface layer 4 in the illustration according to FIG. 1.
  • the embodiment according to FIG. 2 differs from the embodiment according to FIG. 1 by the additional arrangement of a separate core 13.
  • the core 13 consists of a plurality of elements 14 having a rectangular cross section, which are combined by wrapping to form a torsion box 15.
  • a deflection counteracts a lateral tendency to widen, the forces acting as compression forces to the longitudinal center plane 10 of the ski.

Landscapes

  • Laminated Bodies (AREA)
  • Lubricants (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Claims (13)

  1. Ski (1) du type possèdant un corps composé de plusieurs couches, comptortant au moins une couche de semelle (2), une couche supérieure (4) et au moins une couche intermédiaire (5) en plusieurs parties, dans laquelle une pluralité d'éléments (8, 9) s'étendant dans la direction longitudinal du ski qui présentent des duretés et/ou des élasticités de flexion différentes étant disposés transversalement à l'axe longitudinal du ski (1) caractérisé en ce que les éléments (8, 9) sont inclinés par rapport au plan médian longtudinal (10) perpendiculaire à la surface et convergent vers la couche supérieure (4) et en outre sont pourvus d'une section sensiblement en parallélogramme.
  2. Ski selon la revendication 1, caractérisé en ce que les éléments (8, 9) sont inclinés d'un angle de 10 à 40° par rapport au plan longitudinal (10) et sont collés les uns aux autres le long de leurs surfaces de contact.
  3. Ski selon l'une des revendications 1 et 2, caractérisé en ce que le nombre des éléments (8) inclinés les uns en sens inverse des autres, est le même des deux côtés du plan médian longitudinal (10).
  4. Ski selon l'une des revendications 1 à 3, caractérisé en ce que chaque élément (8) en matière plus dure et/ou plus rigide à la flexion est assemblé à un élément (9) en matière plus tendre et/ou plus élastique, les éléments alternant dans la direction transversale à l'axe longitudinal du ski (1).
  5. Ski selon l'une des revendications 1 à 4, caractérisé en ce qu'à proximité du plan longitudinal médian (10), deux éléments (9) inclinés l'un en sens inverse de l'autre par rapport au plan longitudinal médian (10) et qui sont réalisés en une matière plus tendre et/ou plus élastique, sont réunis pour former un noyau présentant un contour sensiblement triangulaire.
  6. Ski selon l'une des revendications 1 à 5, caractérisé en ce que l'inclinaison des éléments (8, 9) est parallèle à l'inclinaison des joues latérales (11) du ski (1).
  7. Ski selon l'une des revendications 1 à 6, caractérisé en ce que l'élément (8) extérieur, adjacent aux joues latérales (11) est en une matière plus dure et/ou rigide à la flexion.
  8. Ski selon l'une des revendications 1 à 7, caractérisé en ce que les éléments (8) adjacents aux joues latérales extérieures (11) sont réunis aux joues latérales (11) par un joint collé élastique.
  9. Ski selon l'une des revendications 1 à 8, caractérisé en ce que les éléments (8, 9) sont assemblés les uns aux autres par des assemblages élastiques en translation.
  10. Ski selon l'une des revendications 1 à 9, caractérisé en ce que, entre les éléments (8, 9) sont intercalés, dans le sens de la largeur, des éléments d'une plus faible largeur et/ou d'une plus grande compressibilité.
  11. Ski selon l'une des revendications 1 à 10, caractérisé en ce que l'inclinaison des éléments (8, 9) situés des deux côtés du plan longitudinal médian (10) est identique mais de sens opposé.
  12. Ski selon l'une des revendications 1 à 11, caractérisé en ce que les éléments (8, 9) sont composé de bois et/ou de matière plastique, en particulier, d'une matière plastique de rigidité variable.
  13. Ski selon l'une des revendications 1 à 12, caractérisé en ce qu'entre des éléments (8, 9) inclinés les uns par rapport aux autres et les uns en sens inverse des autres,est disposé un noyau (13) qui présente une section sensiblement rectangulaire ou en trapèze.
EP86890032A 1985-02-25 1986-02-13 Ski Expired - Lifetime EP0193519B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0056085A AT383496B (de) 1985-02-25 1985-02-25 Ski
AT560/85 1985-02-25

Publications (3)

Publication Number Publication Date
EP0193519A2 EP0193519A2 (fr) 1986-09-03
EP0193519A3 EP0193519A3 (en) 1986-11-26
EP0193519B1 true EP0193519B1 (fr) 1991-09-18

Family

ID=3493835

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86890032A Expired - Lifetime EP0193519B1 (fr) 1985-02-25 1986-02-13 Ski

Country Status (6)

Country Link
US (1) US5005853A (fr)
EP (1) EP0193519B1 (fr)
JP (1) JPS61196984A (fr)
AT (1) AT383496B (fr)
CA (1) CA1280134C (fr)
DE (1) DE3681467D1 (fr)

Families Citing this family (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2610527B1 (fr) * 1987-02-05 1991-05-31 Salomon Sa Ski de fond comportant une nervure longitudinale en saillie par rapport a sa face superieure
FR2610526B1 (fr) * 1987-02-05 1989-12-01 Salomon Sa Ski de fond comportant une nervure longitudinale en saillie par rapport a sa face superieure
FR2611518B1 (fr) * 1987-02-27 1989-11-17 Salomon Sa Ski a amortissement reparti
FR2615405B1 (fr) * 1987-05-22 1989-07-21 Salomon Sa Ski a amortissement reparti
FR2615404B1 (fr) * 1987-05-22 1989-09-01 Salomon Sa Ski a amortissement reparti
FR2615406B1 (fr) * 1987-05-22 1989-07-21 Salomon Sa Ski a amortissement reparti
US5249819A (en) * 1988-09-23 1993-10-05 Head Sportgerate Gesellschaft M.B.H. & Co., Ohg Ski having a hollow body of uniform width
JPH03297479A (ja) * 1990-04-17 1991-12-27 Yamaha Corp スキー板、並びに該スキー板に用いられる中芯体の製法及びスキー板の製法
AT403888B (de) * 1991-10-25 1998-06-25 Atomic Austria Gmbh Ski, insbesondere alpinski
FR2683733B1 (fr) * 1991-11-19 1994-03-18 Rossignol Sa Skis Ski en forme, de section non rectangulaire.
AT405021B (de) * 1992-03-23 1999-04-26 Wolfgang Lehner Ski
FR2713100B1 (fr) * 1993-11-30 1996-01-05 Rossignol Sa Ski.
US6059307A (en) * 1997-10-28 2000-05-09 Western; Michael W. Skateboard deck and method for making the same
US6105991A (en) * 1997-11-20 2000-08-22 The Burton Corporation Core for a gliding board
US6182986B1 (en) * 1998-05-08 2001-02-06 Creighton B. Smith Laminated skateboard
US6502850B1 (en) 1999-10-12 2003-01-07 The Burton Corporation Core for a gliding board
US7735844B2 (en) * 2003-03-24 2010-06-15 Geoffrey Gallo Laminated skateboard
US20040222609A1 (en) * 2003-05-07 2004-11-11 Schmitt Paul G. Waffled wood core skateboard
US7708303B1 (en) 2005-10-19 2010-05-04 Yankee Snowboards Llc Product for traversing snow
EP2922601A1 (fr) * 2012-11-26 2015-09-30 Renoun LLC Appareil pour sport de neige à matériaux non newtoniens
FR3046732B1 (fr) * 2016-01-15 2019-06-21 Skis Rossignol Planche de glisse sur neige

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH240815A (fr) * 1942-05-04 1946-01-31 Carrez Gaston Ski.
US2525618A (en) * 1946-03-01 1950-10-10 United Aircraft Corp Ski of laminated construction
US2611623A (en) * 1947-02-24 1952-09-23 Elsie M Strand Ski and method of making the same
CH258872A (fr) * 1947-05-02 1948-12-31 Authier John Ski.
AT244816B (de) * 1962-05-15 1966-01-25 Hannes Brungraber Verbundski
FR1343014A (fr) * 1962-10-09 1963-11-15 Josef Stockli Skifabrik Fa Ski
FR1375191A (fr) * 1963-08-29 1964-10-16 C Michel Ets Ski
CH417430A (de) * 1965-02-02 1966-07-15 Jacober Fritz Ski mit Sohle aus rostfreiem Stahl
US3416810A (en) * 1966-08-05 1968-12-17 Peter Kennedy Inc Composite metal and plastic ski and method of manufacture for said ski
US3415529A (en) * 1966-11-18 1968-12-10 Fritzmeier Kg Georg Laminated ski having multiple core elements with individual glass fiber wrappings
FR2267129A1 (en) * 1974-04-09 1975-11-07 Lacroix Daniel Method of mfg composite skis - uses multiple sections covered by glass sheets and joined in mould
US4455037A (en) * 1981-11-04 1984-06-19 Olin Corporation Laminated ski reinforcement members
US4545597A (en) * 1981-11-04 1985-10-08 Olin Corporation Reinforcing ribs in a snow ski with a wood/foam core

Also Published As

Publication number Publication date
EP0193519A2 (fr) 1986-09-03
JPH0154063B2 (fr) 1989-11-16
JPS61196984A (ja) 1986-09-01
CA1280134C (fr) 1991-02-12
DE3681467D1 (en) 1991-10-24
EP0193519A3 (en) 1986-11-26
ATA56085A (de) 1986-12-15
US5005853A (en) 1991-04-09
AT383496B (de) 1987-07-10

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