EP0232484A2 - Ski - Google Patents

Ski Download PDF

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Publication number
EP0232484A2
EP0232484A2 EP86116044A EP86116044A EP0232484A2 EP 0232484 A2 EP0232484 A2 EP 0232484A2 EP 86116044 A EP86116044 A EP 86116044A EP 86116044 A EP86116044 A EP 86116044A EP 0232484 A2 EP0232484 A2 EP 0232484A2
Authority
EP
European Patent Office
Prior art keywords
ski
core parts
outer core
strips
core
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
EP86116044A
Other languages
German (de)
English (en)
Other versions
EP0232484A3 (en
EP0232484B1 (fr
Inventor
Rudolf Hirnböck
Adolf Haudum
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
Kastle GmbH
Original Assignee
Kaestle GmbH
Kastle 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 Kaestle GmbH, Kastle GmbH filed Critical Kaestle GmbH
Publication of EP0232484A2 publication Critical patent/EP0232484A2/fr
Publication of EP0232484A3 publication Critical patent/EP0232484A3/de
Application granted granted Critical
Publication of EP0232484B1 publication Critical patent/EP0232484B1/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 ski body consisting of a core, an upper flange and a lower flange, the core consisting of at least three core parts lying next to one another, laterally essentially unconnected and essentially extending in the longitudinal direction of the ski, of which the two outer parts extend to the side surfaces of the Ski-reaching core parts consist of a core material that extends to the upper and lower sides of these core parts, the outer core parts optionally being provided with a side cheek made of a different material, in particular of phenolic resin pressed material.
  • skis with multi-part, in particular three-part cores made of core material wood, foam, honeycomb core
  • core material wood, foam, honeycomb core
  • the individual core parts only being provided on the side, ie. H. are essentially unconnected to one another laterally.
  • Such a ski construction makes it possible, among other things, to vary the skiing properties of the ski by varying the core materials of the individual core parts and thus to achieve a good adaptation of the ski construction to the target groups of the skiers.
  • a ski with a high edge grip can be achieved with outer core parts made of wood, which at most have a side cheek made of phenolic resin pressed material, and a middle core part made of wood.
  • An improvement in the maneuverability of a ski is achieved by a softer bending stiffness distribution, especially in the rear ski area.
  • the lateral directional stability is also reduced, which is particularly undesirable in giant slalom skis.
  • the mentioned decrease in lateral directional stability stems from the fact that when the bending stiffness distribution is reduced (to increase the maneuverability), the torsional stiffness of the ski also generally decreases.
  • Previously known skis with soft rear ski areas typically also have reduced torsional stiffness in this area and thus less lateral directional stability.
  • the object of the invention is to provide a ski of the type mentioned, which at the same time has high lateral directional stability (high torsional rigidity) with great maneuverability (softer bending stiffness distribution).
  • the inner sides of the two outer core parts facing the inner core part (s) are formed by strips which are essentially perpendicular to the tread and which are made of a different material than the core materials of the outer core parts and which are made with the core material of the respective outer core part laterally connected, preferably glued.
  • outer core parts in which the core material is only covered laterally, but is not enclosed in a box-like manner with another material.
  • the core material can increase the torsional rigidity of the core parts, but only if the flexural rigidity is increased at the same time, which means that the ski also loses maneuverability.
  • a higher torsional rigidity of the outer core parts is achieved without significantly influencing their bending stiffness properties and thus the maneuverability of the ski.
  • the outer core parts according to the invention with inner strips have significant advantages. Due to the inner strips, the choice of material for the outer side wall is essentially free, ie it is not absolutely necessary to arrange a material with a high modulus of elasticity there in order to achieve a higher torsional rigidity of the outer core parts. You can therefore also use easily dyeable materials such as ABS and thus follow the trend towards colored side walls.
  • the inner strips offer advantages, since you can also use stiffer materials such as metals would be unsuitable as outer side walls, can use.
  • the highest torsional stiffness will be achieved if you have a known sidewall z. B. from phenolic resin and inside the bar according to the invention arranges on an outer core part.
  • the modulus of elasticity of the strip material should be in the order of 10 6 N / cm 2 and above.
  • the strips can preferably be made of phenolic resin, which is glued to the core material of the outer core parts. Such a strip of phenolic resin is easy to process and increases the torsional rigidity of the outer core parts without increasing their bending rigidity.
  • a preferred embodiment in which this fact is particularly taken into account, is that the width of the lasts and / or the distance thereof from the respective side surface of the ski is behind the binding attachment area increases towards the end of the ski.
  • a preferred embodiment of the ski according to the invention with excellent skiing properties on uneven slopes and in high speed ranges is characterized in that known strip-like layers of viscoelastic material are arranged above and / or below the outer core parts, the width of which essentially corresponds to the width of the outer core parts .
  • Above the outer core parts such as viscoelastic strips arranged between the top flange and the core part, serve primarily as vibration dampers (vibroabsorbers).
  • the viscoelastic layer underneath the outer core parts mainly serves as a shock absorber for impacts or impacts from the outside while driving, while the running edge is advantageously mounted directly on the lower viscoelastic layer.
  • FIG. 1 shows a cross section through an exemplary embodiment of the ski according to the invention
  • FIG. 2 shows a cross section through another exemplary embodiment
  • FIG. 3 shows two further exemplary embodiments in partial cross section
  • FIGS. 4, 5 and 6 each show a partial section of exemplary embodiments of the outer core part according to the invention in a perspective view
  • Fig. 7 is a schematic representation of a ski with a shock load on a steel edge.
  • the ski body consists of a profiled upper flange 1, a two-part lower flange with belt layers 2a, 2b and an intermediate core, which consists of three adjacent core parts 3a, 3b and 3c, which are not directly connected to one another laterally, of which the inner one 3b is made entirely of wood.
  • the two outer core parts 3a and 3c which extend to the side surfaces of the ski, consist of the core material 4 (in the present case beech wood), which extends to the upper and lower sides of the outer core parts 3a and 3c, a side wall 5 made of colored phenolic resin and the strip 6 arranged according to the invention on the inside facing the inner core part 3b.
  • These strips 6 are essentially perpendicular to the tread and consist of a material that is different from the core material 4, for example of undyed phenolic resin pressed material that is glued to the core material 4.
  • the core material 4 of the outer core parts 3a and 3c is only covered laterally, but is not enclosed in a box-like manner, as a result of which the torsional rigidity of the outer core parts 3a and 3c increases noticeably, but the flexural rigidity of the ski hardly.
  • high lateral directional stability high torsional rigidity
  • the ski according to FIG. 1 has a layer 8 made of glass fiber reinforced plastic in the bead of the lower belt layer 2b, to which the tread covering 9 made of polyethylene connects.
  • the steel edges 10 are each connected to the upper belt layer 2a by means of a strip-shaped layer 11 of viscoelastic material acting as a bumper, the width of which essentially corresponds to the width of the outer core parts 3a and 3c. Between the two belt layers 2a, 2b there is a thinner viscoelastic layer 11 '.
  • the profiled upper chord 1 is arranged above the core, and a layer 12 made of viscoelastic material is located between the lateral legs and the outer core parts 3a and 3c and in the same Beading for belt reinforcement, a layer 13 made of glass fiber reinforced plastic, for example epoxy resin, is arranged.
  • the surface covering layer 14 made of ABS plastic covers the top of the ski.
  • the embodiment shown in FIG. 2 also has torsionally rigid outer core parts 3a and 3c, which are constructed essentially the same as the outer core parts shown in FIG. 1.
  • the outer core parts 3a and 3b are in the embodiment according to FIG. 2 above and below in viscoelastic layers 11 or 12 stored.
  • the ski which is otherwise somewhat simplified compared to the ski shown in FIG. 1 (flat upper flange 1 with filler layer 15, one-piece lower flange 2 with filler layer 16), has particularly good driving comfort.
  • the ski shown in the left part of FIG. 3 has a further simplified upper belt construction, wherein an upper viscoelastic layer 12, as shown in FIGS. 1 and 2, is also missing.
  • the ski according to the left part of FIG. 3 is designed somewhat softer overall, because the inner core part 3b consists of foam instead of wood. Between the outer core part 3a and the inner core part there is a gap 17 which, as shown on the right in FIG. 3, can at most be filled with soft elastic material or with foam 18.
  • the torsionally rigid outer core parts themselves can be constructed differently, the core material 4 always extending to the top and bottom sides of the core parts and a strip 6 made of a different material than the core material 4 being arranged on the inside facing the inner core part.
  • a left outer core part 3a is shown in perspective.
  • the core of the outer core part consists of three layers of wood 4, 4 'and 4 ", on the outside of a side wall 5 and on the inside a strip 6 made of phenolic resin are glued.
  • a somewhat less torsionally stiff, but very flexible outer core part 3a has a foam as the core material (FIG. 4).
  • honeycomb cores 4 are also possible, which allow the construction of light and extremely torsion-resistant core parts 3a.
  • the invention is not restricted to the exemplary embodiments shown.
  • other materials are also suitable as phenolic resin press material for the strips 6, in particular if the elastic modulus of the material from which the strips 6 of the outer core parts 3a, 3c are made is in the order of 10 6 N / cm 2 and above.
  • Such materials are, for example, aluminum alloys and reinforced plastics.

Landscapes

  • Lubricants (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Laminated Bodies (AREA)
  • Road Paving Structures (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Polyesters Or Polycarbonates (AREA)
EP86116044A 1985-12-12 1986-11-20 Ski Expired - Lifetime EP0232484B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT3591/85 1985-12-12
AT0359185A AT388874B (de) 1985-12-12 1985-12-12 Ski

Publications (3)

Publication Number Publication Date
EP0232484A2 true EP0232484A2 (fr) 1987-08-19
EP0232484A3 EP0232484A3 (en) 1987-09-23
EP0232484B1 EP0232484B1 (fr) 1990-07-11

Family

ID=3552634

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86116044A Expired - Lifetime EP0232484B1 (fr) 1985-12-12 1986-11-20 Ski

Country Status (3)

Country Link
EP (1) EP0232484B1 (fr)
AT (2) AT388874B (fr)
DE (2) DE3672603D1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5002301A (en) * 1987-05-22 1991-03-26 Salomon S.A. Ski having improved shock absorption and vibration resistance
FR2655864A1 (fr) * 1989-11-16 1991-06-21 Rohrmoser Alois Skifabrik Element de construction sandwich avec une couche de modelage pour ski.
AT400678B (de) * 1990-05-09 1996-02-26 Atomic Austria Gmbh Schi
US5769445A (en) * 1994-04-01 1998-06-23 Morrow Snowboards, Inc. Snowboard
EP0848968A2 (fr) * 1996-12-19 1998-06-24 Marker Deutschland GmbH Planche de neige

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2611518B1 (fr) * 1987-02-27 1989-11-17 Salomon Sa Ski a amortissement reparti
AT402368B (de) * 1991-11-14 1997-04-25 Franz Scheruebl Schi mit einem unter- und einem obergurt und verfahren zu seiner herstellung
FR3030289B1 (fr) * 2014-12-23 2018-07-06 Skis Rossignol Planche de glisse sur neige presentant des chants complexes

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH185181A (de) * 1935-08-23 1936-07-15 Gossweiler Robert Ski.
US3095207A (en) * 1956-09-21 1963-06-25 Head Howard Ski
FR2097849A5 (fr) * 1970-07-01 1972-03-03 Vogel Raimund
FR2515524A1 (fr) * 1981-11-04 1983-05-06 Olin Corp Ski a armature pour descente

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT223094B (de) * 1959-07-28 1962-08-27 Anton Kastle Mehrschichtenschi
CH364443A (fr) * 1960-10-24 1962-09-15 Haldemann S A Ski
DE3406056A1 (de) * 1984-02-20 1985-08-22 Franz Hess & Co. Sperrholzfabrik, Döttingen Skikern

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH185181A (de) * 1935-08-23 1936-07-15 Gossweiler Robert Ski.
US3095207A (en) * 1956-09-21 1963-06-25 Head Howard Ski
FR2097849A5 (fr) * 1970-07-01 1972-03-03 Vogel Raimund
FR2515524A1 (fr) * 1981-11-04 1983-05-06 Olin Corp Ski a armature pour descente

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5002301A (en) * 1987-05-22 1991-03-26 Salomon S.A. Ski having improved shock absorption and vibration resistance
FR2655864A1 (fr) * 1989-11-16 1991-06-21 Rohrmoser Alois Skifabrik Element de construction sandwich avec une couche de modelage pour ski.
AT400678B (de) * 1990-05-09 1996-02-26 Atomic Austria Gmbh Schi
US5769445A (en) * 1994-04-01 1998-06-23 Morrow Snowboards, Inc. Snowboard
EP0848968A2 (fr) * 1996-12-19 1998-06-24 Marker Deutschland GmbH Planche de neige
EP0848968A3 (fr) * 1996-12-19 1999-03-03 Marker Deutschland GmbH Planche de neige

Also Published As

Publication number Publication date
AT388874B (de) 1989-09-11
ATA359185A (de) 1987-07-15
EP0232484A3 (en) 1987-09-23
DE3672603D1 (en) 1990-08-16
EP0232484B1 (fr) 1990-07-11
DE8632865U1 (de) 1987-02-26
ATE54421T1 (de) 1990-07-15

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