EP0373083B1 - Alpin-Ski - Google Patents

Alpin-Ski Download PDF

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Publication number
EP0373083B1
EP0373083B1 EP89420482A EP89420482A EP0373083B1 EP 0373083 B1 EP0373083 B1 EP 0373083B1 EP 89420482 A EP89420482 A EP 89420482A EP 89420482 A EP89420482 A EP 89420482A EP 0373083 B1 EP0373083 B1 EP 0373083B1
Authority
EP
European Patent Office
Prior art keywords
ski
sides
skis
situated
edges
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
EP89420482A
Other languages
English (en)
French (fr)
Other versions
EP0373083A1 (de
Inventor
Jacques Fagot
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
Priority to AT89420482T priority Critical patent/ATE79047T1/de
Publication of EP0373083A1 publication Critical patent/EP0373083A1/de
Application granted granted Critical
Publication of EP0373083B1 publication Critical patent/EP0373083B1/de
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
    • A63C5/04—Structure of the surface thereof
    • A63C5/0405—Shape thereof when projected on a plane, e.g. sidecut, camber, rocker
    • A63C5/0411—Shape thereof when projected on a plane, e.g. sidecut, camber, rocker asymmetric

Definitions

  • the present invention relates to an alpine ski.
  • Alpine skis are used in various conditions on prepared pistes, or off piste and on snow of different qualities, powder snow, packed snow or even hard or even frozen snow. It is well known that, depending on its structure, and therefore on the nature and stacking of the materials which constitute it, a ski is better suited to developments on certain terrains and on certain types of snow than on others. Thus, for skiing on a hard or frozen track where good grip qualities are required, it is advantageous to have a nervous ski and in which the vibrations are eliminated. For skiing in powder snow, the nervousness of the ski is less important. Indeed, on hard snow, the mechanism for initiating and driving a turn implements, at the time of "edge grip", the internal dimension line of the ski outside the turn.
  • the skier by regulating the effort and the direction of this effort on the edge, obtains a turn of more or less large radius.
  • the mechanism for initiating the turn is completely different, since it is by lateral pivoting of the ends of the skis around the axis of the skier that the turn is obtained.
  • the edges made of the most rigid material are positioned outwards, while on hard snow, they are, by inversion of the two skis, arranged opposite.
  • skis whose upper face is connected to the lower face by inclined edges (FR 1 343 014).
  • the angle of inclination of the edges, with respect to the underside, can be variable along the ski, namely: sharper at the tips of the tip and heel than at the level of the skate (US 3,272,522).
  • the inclination of the edges can also be asymmetrical, with one side more acute than the other (DE-U-1 939 540).
  • Document FR-A-2 611 517 describes a ski whose edges are inclined, the angle formed by each edge with the sole increasing from the tip to the shoe and decreasing from the shoe to the heel.
  • a skier is therefore generally obliged to choose a ski presenting a compromise and whose predominant characteristics correspond to the type of terrain and to the type of snow which he prefers.
  • the present invention aims to improve the versatility of existing skis, by providing a ski of suitable shape, providing it with excellent behavior both on hard snow and on powder snow.
  • the ski which it concerns, the edges of which form, over at least part of their length, an angle with the sole, acute, of continuously variable inclination, the two edges of which are asymmetrical is characterized in that the angle of inclination of one of the edges increases from the tip to the pad and decreases from the pad to the heel, while that the angle of inclination of the other edge decreases from the tip to the skate and increases from the skate to the heel, the two skis of the same pair being symmetrical to each other with respect to a plane situated longitudinally at halfway between the two skis. If the skis are used in powder snow, they are fitted so that the edges with bevelled ends face outwards. These beveled ends will be used to cut the layer of powdery snow. This inclination at the ends of the ski forms an acute angle with the sole which increases progressively as it approaches the middle, or skate of the ski, until, in an exemplary embodiment, a song perpendicular to the level of the skier's foot is obtained.
  • the edge On the second side of this same ski, in each of its end zones, that is to say in its zones located near the tip and the heel, the edge is vertical. This weak wall contributes to limiting the risk of crossing of the skis when they are "drowned” in powder snow.
  • the edge gradually tilts progressively, from the tip-heel ends to the center of the ski, until you obtain, at the level of the skate, a edge inclined from the outside to the inside and the sole towards the upper face of the ski. This beveled area allows, in powder snow, to cut the snow mattress which tends to accumulate in front of the skier's feet. On harder snow, the two skis are fitted inversely.
  • each ski turned from the inside is substantially vertical in the skid area, which ensures a "firm" edge grip.
  • the outer edges of each of the skis are bevelled, which reduces the friction forces on the snow.
  • the sum of the angles of inclination of the two edges with the sole is between 120 ° and 150 °.
  • variable inclination of the edges results from the combination of an upper surface of the ski whose longitudinal axis is curvilinear and from the dimension line of the ski sole. which is symmetrical about its longitudinal rectilinear axis.
  • the two edges delimiting the upper face may be located on arcs of circles of the same center, on arcs of circles of the same radii and different centers, on arcs of circles of different radii and different centers, on arcs of circles obtained by smoothing several arcs of circles, on sections of known geometric curves, such as parabola, hyperbola, ellipse, or on curves obtained by smoothing several of these known geometric curves.
  • each edge is disposed above a part which, situated at the level of the lower edge, is perpendicular to the plane of the sole.
  • the ski shown in the drawing comprises a central part 2, not described, delimited by a lower face 3, an upper face 4 and two lateral edges 5 and 6.
  • the connection zone between the lower face 3 equipped with the sliding sole, and each of the side edges 5 and 6 has square edges 7.
  • the ski according to the invention also comprises, in a known manner, a certain number of zones offset axially with respect to each other, namely from the front to the rear, a front zone or tip 8, a zone center or skid 9, and a rear zone or heel 10.
  • the edge 5, in the areas of the tip and heel is inclined from the outside of the ski towards the inside, and from the lower face 3 towards the upper face 4 thereof.
  • These inclined surfaces, designated by the references 12 and 13 respectively, form an angle with the underside of the ski, which increases continuously from each end of the ski towards the central part or skid thereof.
  • the width of each inclined part 12, 13 decreases when one approaches the central part of the ski.
  • the edge 6 is substantially perpendicular to the lower 3 and upper 4 surfaces in the areas of the tip 8 and the heel 10, and is in the form of a surface 14 inclined from the outside towards the inside and from the lower face 3 to the upper face 4, in the central zone or skate of the ski.
  • the width of the inclined face 14 decreases from the skid zone in the direction of the ends of the ski, while the angle formed between the surface 14 and the underside 3 increases continuously from the skid zone 9 towards the tip 8 and heel 10 areas.
  • the edges 15 and 16 delimited by the upper face 4 and the inclined parts 12, 13 on the one hand, and 14 on the other hand, are located on curvilinear lines. Therefore, the upper face of the ski, with a surface smaller than that of the lower face 3, forms a curved surface whose axis 17 intersects the longitudinal median plane 18 of the lower face in front and behind the skid area. 9.
  • the two skis of the same pair having a symmetrical structure, the skier puts on the two skis as shown in Figure 5, if he has to move on hard snow.
  • the two skis comprise, at the level of their facing edges, parts forming substantially a right angle with the upper and lower faces in the pad area 9, which promotes the attachment of the ski to the snow.
  • edges 5 are located on the outside, and their inclined surfaces arranged in the tip areas and heel favor the initiation of turns by "splitting" the snow.
  • the edges 6 being located opposite one another, the inclined surfaces 14 thereof promote the evacuation of the snow mattress accumulating in front of the skier's feet.
  • the invention brings a great improvement to the existing technique, by providing a ski having excellent characteristics of versatility thanks to the asymmetry of its structure.
  • the invention is not limited to the sole embodiment of this ski, described above by way of example; on the contrary, it embraces all of its variant embodiments.
  • the edges 15 and 16 could not be curvilinear, but formed by straight segments and that the edges could not be planar but convex or concave, without going beyond the framework of the 'invention.

Landscapes

  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
  • Road Paving Structures (AREA)
  • Adornments (AREA)
  • Devices For Executing Special Programs (AREA)

Claims (9)

1. Alpinski, dessen Seitenflanken (5, 6) wenigstens auf einem Teil ihrer Länge einen spitzen Winkel kontinuierlich veränderlicher Neigung mit der Sohle (3) bilden, wobei die beiden Seitenflanken (5, 6) asymmetrisch sind, dadurch gekennzeichnet, daß der Neigungswinkel der einen Seitenflanke (5) von der Schaufel (8) zum Bindungsbereich (9) zunimmt und vom Bindungsbereich (9) zum Hinterende (10) abnimmt, während der Neigungswinkel der anderen Seitenflanke (6) von der Schaufel (8) zum Bindungsbereich (9) abnimmt und vom Bindungsbereich (9) zum Hinterende (10) zunimmt, wabei die beiden Ski eines Paares zueinander symmetrisch bezüglich einer in der Kitte zwischen den beiden Ski liegenden Längsebene sind.
2. Ski nach Anspruch 1, dadurch gekennzeichnet, daß in einem Querschnitt an beliebiger Stelle seiner Länge die Summe der Neigungswinkel der beiden Flanken (5, 6) mit der Sohle (3) zwischen 120° und 150° liegt.
3. Ski nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß die variable Neigung der Flanken (5, 6) sich aus der Kombination einer Oberseite (4) des Ski, deren Längsachse gekrümmt ist, und der Maßlinie der Sohle (3) des Ski, die symmetrisch bezüglich deren gerader Längsachse ist, ergibt.
4. Ski nach Anspruch 3, dadurch gekennzeichnet, daß die von der Oberseite (4) und den Flanken (5, 6) gebildeten Kanten (15, 16) auf Kreisbögen mit gleichem Mittelpunkt liegen.
5. Ski nach Anspruch 3, dadurch gekennzeichnet, daß die von der Oberseite (4) und den Flanken (5, 6) gebildeten Kanten auf Kreisbögen mit unterschiedlichen Mittelpunkten und gleichem Radius liegen.
6. Ski nach Anspruch 3, dadurch gekennzeichnet, daß die von der Oberseite (4) und den Flanken (5, 6) gebildeten Kanten auf Kreisbögen mit unterschiedlichen Radien und unterschiedlichen Mittelpunkten liegen.
7. Ski nach Anspruch 3, dadurch gekennzeichnet, daß die von der Oberseite (4) und den Flanken (5, 6) gebildeten Kanten auf Kreisbögen liegen, die man durch Straken mehrerer Kreisbögen erhält.
8. Ski nach Anspruch 3, dadurch gekennzeichnet, daß die von der Oberseite (4) und den Flanken (5, 6) gebildeten Kanten auf Abschnitten bekannter geametrischer Kurven, beispielsweise Parabeln, Hyperbeln, Ellipsen oder auf Kurven liegen, die man durch Straken mehrerer derartiger bekannter geametrischer Kurven erhält.
9. Ski nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß jede Flanke oberhalb einer Fläche angeordnet ist, die sich an der Unterkante anschließt und senkrecht auf der Ebene der Sohle (3) steht.
EP89420482A 1988-12-07 1989-12-06 Alpin-Ski Expired - Lifetime EP0373083B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89420482T ATE79047T1 (de) 1988-12-07 1989-12-06 Alpin-ski.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8817569 1988-12-07
FR8817569A FR2639836B1 (fr) 1988-12-07 1988-12-07 Ski alpin

Publications (2)

Publication Number Publication Date
EP0373083A1 EP0373083A1 (de) 1990-06-13
EP0373083B1 true EP0373083B1 (de) 1992-08-05

Family

ID=9373695

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89420482A Expired - Lifetime EP0373083B1 (de) 1988-12-07 1989-12-06 Alpin-Ski

Country Status (6)

Country Link
US (1) US4971350A (de)
EP (1) EP0373083B1 (de)
AT (1) ATE79047T1 (de)
DE (1) DE68902385T2 (de)
ES (1) ES2034732T3 (de)
FR (1) FR2639836B1 (de)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2618079B1 (fr) * 1987-07-15 1995-03-31 Salomon Sa Ski a face superieure mixte
FR2705905B1 (fr) * 1993-06-02 1995-07-07 Rossignol Sa Ski à profil perfectionné.
NO940482D0 (no) * 1994-02-11 1994-02-11 Joergen Karlsen Alpin parski
AT406735B (de) * 1996-06-27 2000-08-25 Atomic Austria Gmbh Skipaar für den alpinskilauf
US6663137B2 (en) 1998-03-10 2003-12-16 Karlsen Joergen Snowboard
AU761346C (en) * 1999-01-07 2004-07-29 Walter Stucki Safety edge for skis and snowboards and methods for producing a ski and snowboard with such a safety edge
US6394482B1 (en) * 1999-09-09 2002-05-28 Ski Logic, Llc Snow skis having asymmetrical edges
US20020089149A1 (en) * 2001-01-05 2002-07-11 Scott Barbieri Gliding board with varying bending properties
US20030205872A1 (en) * 2002-05-02 2003-11-06 Charles Mehrmann Sled board with tracking bottom
FR2855427B1 (fr) * 2003-06-02 2005-08-26 Salomon Sa Ski prevu pour la pratique du ski alpin
US20050269801A1 (en) * 2004-06-02 2005-12-08 Ski Logic D/B/A Scottybob Snow Skis And Snowboards Having Split Tips And/Or Tails
PL3045212T3 (pl) 2015-01-19 2019-12-31 FLISEK razvoj, proizvodnja in trgovina z izdelki za sport d.o.o. Krawędź narty i profil ścianki bocznej w przekroju poprzecznym

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1343014A (fr) * 1962-10-09 1963-11-15 Josef Stockli Skifabrik Fa Ski
US3272522A (en) * 1965-06-21 1966-09-13 Peter Kennedy Inc Composite metal and plastic ski
DE1939540A1 (de) * 1969-08-04 1971-02-18 Christian Meyer Fernbetaetigungsvorrichtung fuer Bewegungsspielzeug
US4700967A (en) * 1985-12-13 1987-10-20 Tristar Sports Inc. Asymmetric alpine ski with offset boot platform
FR2611517B1 (fr) * 1987-02-27 1992-11-06 Salomon Sa Ski a caisson profile
FR2598929B1 (fr) * 1986-05-23 1989-09-08 Salomon Sa Ski profile
FR2598932B1 (fr) * 1986-05-23 1988-09-02 Salomon Sa Ski profile dissymetrique
FR2598931B1 (fr) * 1986-05-23 1988-08-26 Salomon Sa Ski profile a dissymetrie variable
US4895388A (en) * 1988-05-17 1990-01-23 Richmond William D Pair of skis

Also Published As

Publication number Publication date
FR2639836A1 (fr) 1990-06-08
ES2034732T3 (es) 1993-04-01
EP0373083A1 (de) 1990-06-13
FR2639836B1 (fr) 1991-01-11
DE68902385T2 (de) 1992-12-10
ATE79047T1 (de) 1992-08-15
DE68902385D1 (de) 1992-09-10
US4971350A (en) 1990-11-20

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