EP0162012A1 - Vorrichtung zum Stabilisieren von Skiern - Google Patents

Vorrichtung zum Stabilisieren von Skiern Download PDF

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Publication number
EP0162012A1
EP0162012A1 EP85810215A EP85810215A EP0162012A1 EP 0162012 A1 EP0162012 A1 EP 0162012A1 EP 85810215 A EP85810215 A EP 85810215A EP 85810215 A EP85810215 A EP 85810215A EP 0162012 A1 EP0162012 A1 EP 0162012A1
Authority
EP
European Patent Office
Prior art keywords
ski
profile
lift
tip
stabilizing
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.)
Withdrawn
Application number
EP85810215A
Other languages
English (en)
French (fr)
Inventor
Gérard Cholat-Serpoud
Marc-Georges Delery
Jean-Pierre Brossard
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 Dynastar SA
Original Assignee
Skis Dynastar 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 Dynastar SA filed Critical Skis Dynastar SA
Publication of EP0162012A1 publication Critical patent/EP0162012A1/de
Withdrawn legal-status Critical Current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
    • A63C5/06—Skis or snowboards with special devices thereon, e.g. steering devices
    • A63C5/075—Vibration dampers
    • 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
    • A63C5/04—Structure of the surface thereof
    • A63C5/052—Structure of the surface thereof of the tips or rear ends

Definitions

  • the present invention relates to a device for stabilizing a ski.
  • a ski is subjected to various factors likely to modify its behavior by generating in particular instabilities which are the cause of the birth and the maintenance of vibrations. These vibrations make skiing more difficult by reducing the surface area of the ski in contact with the snow.
  • DE-A-2,747,084 thus relates to such a system, in which a mass is oscillatingly mounted inside a housing by suspension springs or by an elastic material such as an elastomer or plastic foam.
  • FR-A-2,383,680 relates to a vibration damper which has a mass resiliently held in its rest position and which is capable of moving transversely relative to the longitudinal direction of the ski.
  • the object of the present invention is to provide a solution which makes it possible to at least partially remedy the instability phenomena of aerodynamic nature, generated by the profile of the ski tip.
  • the subject of this invention is a device for stabilizing a ski according to claim 1.
  • the attached drawing illustrates, schematically and by way of example, two variants of the device which is the subject of the present invention.
  • Fig. 1 is the diagram of the lift as a function of the angle of incidence.
  • Fig. 2 is a perspective view of the front end of a ski illustrating the first variant.
  • Fig. 3 is a perspective view of the second variant.
  • the variant of the device according to the invention, illustrated in FIG. 2 has a ski 1, the front end of which ends with a tip 2 which therefore constitutes the profile responsible for the phenomena of aerodynamic instability.
  • this tip 2 the front end of which is cut along a line transverse to the longitudinal axis of the ski, is associated a second profile constituted by a wing 3 chosen from the range of high lift profiles, or even lifters, which introduces a stabilizing aerodynamic element, intended to combat the unstable effects of the tip 2.
  • the profile of the wing 2 is oriented so that the lift is directed downwards so that with the stabilizing effect, the device adds a bearing effect which, at speeds of the order of 100 km / h can be a few newtons, thus further increasing the contact of the ski on snow and therefore the control of the skier on his skis.
  • This wing 3 ends at each end with a guard plate 4 intended to create an elongation effect of the wing and is attached to the ski by two supports 5.
  • This embodiment has been essentially studied for experimental purposes. It allows the effects of instability due to the profile of the spatula 2 to be beaten, but not those generated by Karman vortices. In practical terms, this embodiment has drawbacks because the wing is spaced from the ski. In addition to the unpleasant aesthetic aspect of this embodiment, the attachment of the wing is made vulnerable and the space between the tip of the tip and the leading edge of the wing 3 can fill with snow. .
  • a profiled face 6 is attached to the front edge of the tip 2 which extends along a line transverse to the longitudinal axis of the ski.
  • This profiled face 6 has the lower profile of a wing with high lift or even high lift, two side plates 7 forming a rim around the entire periphery of this face, create a transverse elongation effect on this profiled face 6 and also serve for the fixing of this face 6 with the spatula as well as laterally closing the space between this face 6 and the spatula 2.
  • This free space could for example be used to house a vibration damper of the type described in EP-A2-0 102 653 which could thus add its effect to that of the profiled face 6.
  • this variant has the advantage of avoiding Karman vortices behind the spatula 2, because the profiled face 6 is attached to this spatula.
  • the second of the aerodynamic causes of instability is at least mitigated.
  • the attachment of the profiled face 6 to the front of the spatula prevents snow from interfering with the device by blocking the space which would be left free between the front edge of this profiled face 6 and the front edge. of the spatula 2. Fixing this kind of fairing on the spatula is also easier and more reliable than the variant in FIG. 2.

Landscapes

  • Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
  • Vibration Prevention Devices (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)
EP85810215A 1984-05-09 1985-05-07 Vorrichtung zum Stabilisieren von Skiern Withdrawn EP0162012A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8407091 1984-05-09
FR8407091A FR2564001A1 (fr) 1984-05-09 1984-05-09 Dispositif pour stabiliser un ski

Publications (1)

Publication Number Publication Date
EP0162012A1 true EP0162012A1 (de) 1985-11-21

Family

ID=9303777

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85810215A Withdrawn EP0162012A1 (de) 1984-05-09 1985-05-07 Vorrichtung zum Stabilisieren von Skiern

Country Status (3)

Country Link
EP (1) EP0162012A1 (de)
JP (1) JPS6133687A (de)
FR (1) FR2564001A1 (de)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0298885A1 (de) * 1987-07-09 1989-01-11 Skis Rossignol S.A. Abfahrtsski mit verlängerter Schaufel
FR2622463A1 (fr) * 1987-11-03 1989-05-05 Favreau Pierrette Monoski a suspension et aileron
US4874783A (en) * 1984-02-10 1989-10-17 General Electric Company Enhancing color stability to sterilizing radiation of polymer compositions
US4876309A (en) * 1984-02-10 1989-10-24 General Electric Company Enhancing color stability to sterlizing radiation of polymer compositions
US4880850A (en) * 1984-02-10 1989-11-14 General Electric Company Enhancing color stability to sterilizing radiation of polymer compositions
US4880856A (en) * 1987-12-22 1989-11-14 General Electric Company Enhancing color stability of sterilizing radiation of polymer compositions
US4880855A (en) * 1984-02-10 1989-11-14 General Electric Company Enhancing color stability to sterilizing radiation of polymer compositions
US4880854A (en) * 1984-02-10 1989-11-14 General Electric Company Enhancing color stability to sterilizing radiation of polymer compositions
US4882366A (en) * 1984-02-10 1989-11-21 General Electric Company Enhancing color stability to sterilizing radiation of polymer compositions
US4939186A (en) * 1984-02-10 1990-07-03 General Electric Company Enhancing color stability to sterilizing radiation of polymer compositions
GB2475555A (en) * 2009-11-24 2011-05-25 Uk Sport Wind deflector for sports board
DE102013007814A1 (de) * 2013-05-07 2014-11-13 Stylianos Pallis Ski mit Abtriebsflügel sowie Abtriebsflügel für einen Ski
US8910966B1 (en) * 2014-04-03 2014-12-16 Brian M. Rogers Snow ski and snowboard wing

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0710523B2 (ja) * 1991-10-07 1995-02-08 株式会社丸仲鉄工所 木材の長孔穿孔方法および木工用角のみ装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH573256A5 (en) * 1974-01-31 1976-03-15 Gouda Samy Ski for long distance jumping - has fairing over ski tip to reduce air resistance and drag
FR2294724A1 (fr) * 1974-12-20 1976-07-16 Arai Fusaji Ski, en particulier pour courses de descente
AT344049B (de) * 1976-01-22 1978-06-26 Kneissl Ski Sprungski
EP0123635A1 (de) * 1983-04-12 1984-10-31 Skis Rossignol S.A. Ski

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH573256A5 (en) * 1974-01-31 1976-03-15 Gouda Samy Ski for long distance jumping - has fairing over ski tip to reduce air resistance and drag
FR2294724A1 (fr) * 1974-12-20 1976-07-16 Arai Fusaji Ski, en particulier pour courses de descente
AT344049B (de) * 1976-01-22 1978-06-26 Kneissl Ski Sprungski
EP0123635A1 (de) * 1983-04-12 1984-10-31 Skis Rossignol S.A. Ski

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4880854A (en) * 1984-02-10 1989-11-14 General Electric Company Enhancing color stability to sterilizing radiation of polymer compositions
US4882366A (en) * 1984-02-10 1989-11-21 General Electric Company Enhancing color stability to sterilizing radiation of polymer compositions
US4939186A (en) * 1984-02-10 1990-07-03 General Electric Company Enhancing color stability to sterilizing radiation of polymer compositions
US4880850A (en) * 1984-02-10 1989-11-14 General Electric Company Enhancing color stability to sterilizing radiation of polymer compositions
US4874783A (en) * 1984-02-10 1989-10-17 General Electric Company Enhancing color stability to sterilizing radiation of polymer compositions
US4876309A (en) * 1984-02-10 1989-10-24 General Electric Company Enhancing color stability to sterlizing radiation of polymer compositions
US4880855A (en) * 1984-02-10 1989-11-14 General Electric Company Enhancing color stability to sterilizing radiation of polymer compositions
FR2617729A1 (fr) * 1987-07-09 1989-01-13 Rossignol Sa Ski de piste a spatule allongee
US4861063A (en) * 1987-07-09 1989-08-29 Skis Rossignol S.A. Downhill ski with elongated tip
EP0298885A1 (de) * 1987-07-09 1989-01-11 Skis Rossignol S.A. Abfahrtsski mit verlängerter Schaufel
FR2622463A1 (fr) * 1987-11-03 1989-05-05 Favreau Pierrette Monoski a suspension et aileron
US4880856A (en) * 1987-12-22 1989-11-14 General Electric Company Enhancing color stability of sterilizing radiation of polymer compositions
GB2475555A (en) * 2009-11-24 2011-05-25 Uk Sport Wind deflector for sports board
DE102013007814A1 (de) * 2013-05-07 2014-11-13 Stylianos Pallis Ski mit Abtriebsflügel sowie Abtriebsflügel für einen Ski
US8910966B1 (en) * 2014-04-03 2014-12-16 Brian M. Rogers Snow ski and snowboard wing

Also Published As

Publication number Publication date
JPS6133687A (ja) 1986-02-17
FR2564001A1 (fr) 1985-11-15

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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AK Designated contracting states

Designated state(s): AT BE CH DE FR GB IT LI LU NL SE

17P Request for examination filed

Effective date: 19860207

STAA Information on the status of an ep patent application or granted ep patent

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18W Application withdrawn

Withdrawal date: 19860906

RIN1 Information on inventor provided before grant (corrected)

Inventor name: DELERY, MARC-GEORGES

Inventor name: CHOLAT-SERPOUD, GERARD

Inventor name: BROSSARD, JEAN-PIERRE