US20030122349A1 - Cross-country ski - Google Patents

Cross-country ski Download PDF

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Publication number
US20030122349A1
US20030122349A1 US10/314,570 US31457002A US2003122349A1 US 20030122349 A1 US20030122349 A1 US 20030122349A1 US 31457002 A US31457002 A US 31457002A US 2003122349 A1 US2003122349 A1 US 2003122349A1
Authority
US
United States
Prior art keywords
ski
tip
front contact
contact line
line
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.)
Abandoned
Application number
US10/314,570
Other languages
English (en)
Inventor
Christian Paillot
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
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 filed Critical Skis Rossignol SA
Assigned to SKIS ROSSIGNOL S.A. reassignment SKIS ROSSIGNOL S.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: PAILLOT, CHRISTIAN
Publication of US20030122349A1 publication Critical patent/US20030122349A1/en
Abandoned 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
    • A63C5/003—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
    • A63C5/04—Structure of the surface thereof
    • A63C5/052—Structure of the surface thereof of the tips or rear ends

Definitions

  • the invention relates to the field of gliding sports and, more particularly, to that of cross-country skiing. More precisely, it relates to a cross-country ski having a tip that is optimized and, more precisely, “narrowed” in comparison to conventional cross-country skis.
  • a cross-country ski has a front end forming a tip.
  • This tip forms an upwardly curved zone, the width of which decreases toward its end.
  • This tip is curved upward to enable the ski to be on top of the snow and to overcome obstacles and differences in level that exist on the gliding trail.
  • this tip is considered to start forward of a transverse line defined in standard fashion as the front contact line.
  • the object of the invention is to eliminate or at the very least greatly reduce these scraping effects of the tip, which skiers commonly call “snow-shovel” effects.
  • the invention therefore relates to a cross-country ski having a tip extending beyond the front contact line.
  • the projection of the side line of the tip of the ski over a horizontal plane has an inflection point located forward of the front contact line, at least on one side of the ski.
  • the invention consists in reducing the width of the tip in comparison to existing skis, by “narrowing” it.
  • the ski forward of the front contact line, the ski has a marked narrowing, forming an inflexion point on its side line when the latter is observed from above. Beyond this inflexion point, the tip has a width that decreases less severely up to the end of the ski.
  • the tip has a relatively marked variation in its width beyond the front contact line.
  • this width reduction may be located at least on the inner side of the ski when the right and left skis are different. Nevertheless, more generally, as skis are usually symmetrical, this width reduction may also be symmetrical relative to the median longitudinal plane, the tip in this case having two inflexion points, one on either side of the ski.
  • the width of the tip measured midway between the end of the tip and the front contact line is between 40 and 80%, preferably between 50 and 75%, of the width measured in the region of the front contact line.
  • FIG. 1 is a side view of a cross-country ski according to the invention.
  • FIG. 2 is a top view of the ski in FIG. 1.
  • the front of the cross-country ski ( 1 ) shown in FIG. 1 lies in a horizontal plane H.
  • the front contact line ( 2 ) illustrated in FIG. 1 corresponds to the longitudinal level of the ski where the sole ( 3 ) ceases to be in contact with the horizontal plane H.
  • the tip starts beyond this front contact line ( 2 ). This tip is curved upward as far as its end ( 5 ).
  • the tip ( 4 ) has two inflexion points ( 6 , 7 ) located on either side of the median longitudinal plane ( 8 ). More precisely, these inflexion points occur on the projection of the side line of the tip ( 4 ) over the horizontal plane on which the sole ( 3 ) lies.
  • the inflexion point is understood in its geometrical definition as the point ( 6 , 7 ) where the side line of the tip ( 4 ) crosses its tangent ( 15 ).
  • the portion ( 10 , 11 ) of the side line has a curve oriented toward the inside of the ski.
  • the portion ( 12 , 13 ) of the side line has a curve oriented toward the outside.
  • the tip ( 4 ) has a narrowing of its width that moves it away from the profile ( 16 , 17 ) shown in dotted lines in FIG. 2, corresponding to the extension of the side line ( 18 , 19 ) to the rear of the front contact line 2 .
  • the two inflexion points ( 6 , 7 ) are located at the same longitudinal level, but in other variant embodiments that are not shown they may be offset longitudinally and be located closer to or farther away from the front contact line.
  • the width L of the board in the region of the front contact line ( 2 ) is of the order of 38 millimeters.
  • the width l, measured in a horizontal plane midway between the projection ( 9 ) of the end ( 5 ) of the tip ( 4 ) and the front contact line ( 2 ) is of the order of 26 millimetres.
  • the cross-country ski according to the invention has several advantages owing to the narrowing of its tip. Particular mention may be made of the quasi-elimination of the risk of scraping the snow in the region of the tip during the movements to bring the ski forward when skating. Mention will also be made of a slight reduction in the weight of the tip of the ski, and therefore of the ski, which gives rise to a reduction in the ski's overall inertia, which improves its behavior.

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  • Road Paving Structures (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
US10/314,570 2001-12-27 2002-12-09 Cross-country ski Abandoned US20030122349A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0116937A FR2834221B1 (fr) 2001-12-27 2001-12-27 Ski de fond
FR0116937 2001-12-27

Publications (1)

Publication Number Publication Date
US20030122349A1 true US20030122349A1 (en) 2003-07-03

Family

ID=8871029

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/314,570 Abandoned US20030122349A1 (en) 2001-12-27 2002-12-09 Cross-country ski

Country Status (3)

Country Link
US (1) US20030122349A1 (fr)
EP (1) EP1323455A1 (fr)
FR (1) FR2834221B1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH705162B1 (de) * 2011-06-28 2015-02-13 Zai Tec Ag Schneegleitbrett.

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1595632A (en) * 1924-12-02 1926-08-10 American Fork & Hoe Co Ski
US2055757A (en) * 1933-08-16 1936-09-29 Newton F Tolman Ski
US3876216A (en) * 1972-12-27 1975-04-08 Werner Wehr Safety head for skis
US4262927A (en) * 1978-05-05 1981-04-21 Peter Hochstrasser Streamlined tip for a ski
US4826201A (en) * 1987-07-28 1989-05-02 Varan Cyrus O Ski with increased maneuvering ability
US4906016A (en) * 1987-07-28 1990-03-06 Varan Cyrus O Ski with increased toe pinning ability
US5230527A (en) * 1992-04-22 1993-07-27 Varan Cyrus O Snow ski with improved toe and mid-length design
US5360228A (en) * 1989-12-01 1994-11-01 Salomon S.A. Removable spatula tip
US5397153A (en) * 1992-05-25 1995-03-14 Salomon S.A. Competition ski designed for slalom and end-piece designed for said ski
US5667238A (en) * 1993-03-03 1997-09-16 Sarver; John J. Ski having compound curve undersurface

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2626484B3 (fr) * 1988-02-03 1990-08-17 Vandel Skis Ski de fond presentant une nouvelle geometrie
US6357782B1 (en) * 1998-06-25 2002-03-19 Fischer Geserllschaft M.B.H. Cross-country ski

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1595632A (en) * 1924-12-02 1926-08-10 American Fork & Hoe Co Ski
US2055757A (en) * 1933-08-16 1936-09-29 Newton F Tolman Ski
US3876216A (en) * 1972-12-27 1975-04-08 Werner Wehr Safety head for skis
US4262927A (en) * 1978-05-05 1981-04-21 Peter Hochstrasser Streamlined tip for a ski
US4826201A (en) * 1987-07-28 1989-05-02 Varan Cyrus O Ski with increased maneuvering ability
US4906016A (en) * 1987-07-28 1990-03-06 Varan Cyrus O Ski with increased toe pinning ability
US5360228A (en) * 1989-12-01 1994-11-01 Salomon S.A. Removable spatula tip
US5230527A (en) * 1992-04-22 1993-07-27 Varan Cyrus O Snow ski with improved toe and mid-length design
US5397153A (en) * 1992-05-25 1995-03-14 Salomon S.A. Competition ski designed for slalom and end-piece designed for said ski
US5667238A (en) * 1993-03-03 1997-09-16 Sarver; John J. Ski having compound curve undersurface

Also Published As

Publication number Publication date
EP1323455A1 (fr) 2003-07-02
FR2834221B1 (fr) 2004-07-16
FR2834221A1 (fr) 2003-07-04

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SKIS ROSSIGNOL S.A., FRANCE

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:PAILLOT, CHRISTIAN;REEL/FRAME:013560/0627

Effective date: 20021122

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION