EP0193519A2 - Ski - Google Patents

Ski Download PDF

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Publication number
EP0193519A2
EP0193519A2 EP86890032A EP86890032A EP0193519A2 EP 0193519 A2 EP0193519 A2 EP 0193519A2 EP 86890032 A EP86890032 A EP 86890032A EP 86890032 A EP86890032 A EP 86890032A EP 0193519 A2 EP0193519 A2 EP 0193519A2
Authority
EP
European Patent Office
Prior art keywords
elements
ski
ski according
center plane
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.)
Granted
Application number
EP86890032A
Other languages
German (de)
English (en)
Other versions
EP0193519A3 (en
EP0193519B1 (fr
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 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 Sportgerate and Co oHG GmbH filed Critical Head Sportgerate and Co oHG 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.
  • skis composed of a number of different materials
  • multi-layer glued wooden cores in addition to glass fiber laminates and aluminum layers.
  • Such wooden cores are usually constructed in such a way that the plurality of strips with a rectangular cross section are connected to one another.
  • the individual strips are mostly arranged in the ski in such a way that the long sides of the rectangular cross-sectional profile lie against one another, which results in an increase in rigidity and better stability.
  • a bending stress with this type of construction, there is little possibility of a relative displacement movement of the individual strips.
  • the bending stress primarily affects the gluing points as a normal force component when the strips deflect. If the surface bond bursts open, the bond quickly loses its hold and there is a risk of breakage. It has therefore already been proposed to wrap the multi-part core in order to improve the stability or to enclose it in the manner of a torsion box in a common hollow profile. Due to the buckling of the torsion box when the ski bends, the desired strength and elasticity properties can be controlled to a limited extent with a given choice of material.
  • 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 essentially consists in that an intermediate layer has elements which are inclined to the surface in the longitudinal longitudinal plane normal to the surface layer and converge to the surface layer and extend in the longitudinal direction of the ski with an essentially parallelogram-shaped cross-section, a plurality of elements having different hardness and / or elasticity of elasticity being arranged in the direction transverse to the longitudinal axis of the ski.
  • 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 the risk of breakage.
  • the type of connection also makes it possible to impart high permanent deformations to the ski without this having an impact on the risk of breakage. Characterized in that inclined, parallelogram-shaped elements with different hardnesses and / or bending elasticities are provided, 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.
  • the same materials as are usually used in ski construction can be used, and the choice of different adhesives or glues can have a decisive influence on the bending or strength behavior.
  • Characterized in that the elements having a parallelogram cross section are arranged in this way are that they converge towards the surface, there is an increase in the surface pressure of the elements against one another in the deflections occurring under load when skiing, whereby a progressive spring characteristic can be achieved in the deflection.
  • 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 inclined at an angle of 10 to 40 ° to the longitudinal median plane and glued together at the contact surfaces.
  • the bending elasticity can also be influenced by selecting the number of elements inclined in one direction to the longitudinal center plane and the number of elements inclined in the opposite direction. In an advantageous manner, however, the design is such that the number of elements which are arranged so as to be opposite to one another is the same on both sides of the longitudinal center plane.
  • a lateral tendency of the core or the intermediate layer to expand is counteracted, the bending stress, in addition to an increase in the surface compression, at best leading to a shear stress on the gluing or the bonding, which can easily be absorbed due to the enlarged 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 alternates with 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 uniform over the entire cross section of the Intermediate layer absorbed distributed and the risk of local overstraining 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.
  • connection of the side cheeks with the elements adjacent to the side cheeks is advantageously carried out 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 smaller than the harder elements, can be formed.
  • the design can advantageously be such that near the longitudinal center plane two elements arranged at an angle to the longitudinal center plane, preferably made of softer and / or more elastic material, are connected to form a substantially triangular outline . If the elements adjacent to the side walls are designed as hard elements, this results in an even number of elements on both sides of the longitudinal center plane, so that two softer elements remain in the middle.
  • the core which is essentially triangular in outline, can remain hollow in this type of construction or else it can be be filled with a plastic mass, 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 the same in opposite directions. 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 increase its strength speed properties can be formed in a known manner as a torsion box.
  • FIG. 1 shows a cross section through a first embodiment of a ski according to the invention and
  • FIG. 2 shows an analog cross section through a modified embodiment.
  • a ski 1 is shown in FIG.
  • 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 adjacent to the side cheeks 11, which are formed in a conventional manner 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, with the representation according to FIG. 1 between the intermediate layer 5 and a further layer 12 formed from glass fiber laminate or aluminum is provided to the surface layer 4.
  • 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)
EP86890032A 1985-02-25 1986-02-13 Ski Expired - Lifetime EP0193519B1 (fr)

Applications Claiming Priority (2)

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

Publications (3)

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

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1988005676A1 (fr) * 1987-02-05 1988-08-11 Salomon S.A. Ski comportant une nervure longitudinale a sa partie superieure
FR2610527A1 (fr) * 1987-02-05 1988-08-12 Salomon Sa Ski de fond comportant une nervure longitudinale en saillie par rapport a sa face superieure
FR2611518A1 (fr) * 1987-02-27 1988-09-09 Salomon Sa Ski a amortissement reparti
FR2615404A1 (fr) * 1987-05-22 1988-11-25 Salomon Sa Ski a amortissement reparti
FR2615406A1 (fr) * 1987-05-22 1988-11-25 Salomon Sa Ski a amortissement reparti
FR2615405A1 (fr) * 1987-05-22 1988-11-25 Salomon Sa Ski a amortissement reparti
FR2686265A1 (fr) * 1991-10-25 1993-07-23 Rohrmoser Alois Skifabrik Dispositif de glissement, notamment ski.
FR3046732A1 (fr) * 2016-01-15 2017-07-21 Rossignol Sa Planche de glisse sur neige

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
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
CA2892574C (fr) * 2012-11-26 2019-09-17 Renoun, Llc Appareil pour sport de neige a materiaux non newtoniens

Citations (5)

* 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.
CH258872A (fr) * 1947-05-02 1948-12-31 Authier John Ski.
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
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

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
AT244816B (de) * 1962-05-15 1966-01-25 Hannes Brungraber Verbundski
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
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

Patent Citations (5)

* 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.
CH258872A (fr) * 1947-05-02 1948-12-31 Authier John Ski.
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
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
EUROSPORT, April 1972, Seiten 750-753, Bamberg; "Rund um den Ski" *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4957304A (en) * 1987-02-05 1990-09-18 Salomon S.A. Ski comprising a longitudinal rib at its top part
FR2610527A1 (fr) * 1987-02-05 1988-08-12 Salomon Sa Ski de fond comportant une nervure longitudinale en saillie par rapport a sa face superieure
WO1988005676A1 (fr) * 1987-02-05 1988-08-11 Salomon S.A. Ski comportant une nervure longitudinale a sa partie superieure
EP0283331A1 (fr) * 1987-02-05 1988-09-21 Salomon S.A. Ski comportant une nervure longitudinale à sa partie supérieure
US5002300A (en) * 1987-02-27 1991-03-26 Salomon S.A. Ski with distributed shock absorption
FR2611518A1 (fr) * 1987-02-27 1988-09-09 Salomon Sa Ski a amortissement reparti
AT401350B (de) * 1987-02-27 1996-08-26 Salomon Sa Alpinski
FR2615406A1 (fr) * 1987-05-22 1988-11-25 Salomon Sa Ski a amortissement reparti
FR2615405A1 (fr) * 1987-05-22 1988-11-25 Salomon Sa Ski a amortissement reparti
FR2615404A1 (fr) * 1987-05-22 1988-11-25 Salomon Sa Ski a amortissement reparti
US5000475A (en) * 1987-05-22 1991-03-19 Salomon S.A. Ski having improved shock absorption and vibration resistance
US5002301A (en) * 1987-05-22 1991-03-26 Salomon S.A. Ski having improved shock absorption and vibration resistance
US5033765A (en) * 1987-05-22 1991-07-23 Salomon S.A. Ski having improved shock absorption and vibration resistance
FR2686265A1 (fr) * 1991-10-25 1993-07-23 Rohrmoser Alois Skifabrik Dispositif de glissement, notamment ski.
FR3046732A1 (fr) * 2016-01-15 2017-07-21 Rossignol Sa Planche de glisse sur neige

Also Published As

Publication number Publication date
JPH0154063B2 (fr) 1989-11-16
DE3681467D1 (en) 1991-10-24
CA1280134C (fr) 1991-02-12
ATA56085A (de) 1986-12-15
AT383496B (de) 1987-07-10
EP0193519A3 (en) 1986-11-26
EP0193519B1 (fr) 1991-09-18
US5005853A (en) 1991-04-09
JPS61196984A (ja) 1986-09-01

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