EP0373083A1 - Alpine ski - Google Patents

Alpine ski Download PDF

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Publication number
EP0373083A1
EP0373083A1 EP89420482A EP89420482A EP0373083A1 EP 0373083 A1 EP0373083 A1 EP 0373083A1 EP 89420482 A EP89420482 A EP 89420482A EP 89420482 A EP89420482 A EP 89420482A EP 0373083 A1 EP0373083 A1 EP 0373083A1
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EP
European Patent Office
Prior art keywords
edges
ski
skis
ski according
circles
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Granted
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EP89420482A
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German (de)
French (fr)
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EP0373083B1 (en
Inventor
Jacques Fagot
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Skis Rossignol SA
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Skis Rossignol SA
Rossignol SA
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Priority to AT89420482T priority Critical patent/ATE79047T1/en
Publication of EP0373083A1 publication Critical patent/EP0373083A1/en
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    • 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: more acute at the tips of the tip and the 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 1,939,540).
  • 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 whose edges form, over at least part of their length, an angle with the sole, acute, of continuously variable inclination, and whose two edges 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 bevelled 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 with the same center, on arcs of circles with the same radii and different centers, on arcs of circles with 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.
  • the inclined part of 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 is provided with 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.

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  • 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)

Abstract

A downhill ski has side walls which form, over at least a part of their length, an acute angle with the base and have a continuously varying slope and are asymmetrical. The slope angle of one of the side walls increasesfrom tip to waist and decreases from waist to tail, while the slope angle of the other side wall decreases from tip to waist and increases from waist to tail. The two skis of a given pair are symmetrical to one another relative to a longitudinal plane located midway between the two skis, so that like side walls can be alternately positioned adjacent each other to suit different snow conditions. The construction provides enhanced versatility for varying snow conditions.

Description

La présente invention a pour objet un ski alpin.The present invention relates to an alpine ski.

Les skis alpins sont utilisés dans diverses conditions sur des pistes préparées, ou hors pistes et sur des neiges de différentes qualités, neige poudreuse, neige damée ou encore neige dure voire gelée. Il est bien connu qu'en fonction de sa structure, donc de la nature et de l'empilage des matériaux qui le constituent, un ski convient mieux à des évolutions sur certains terrains et sur certains types de neige que sur d'autres. Ainsi, pour une pratique du ski sur une piste dure ou gelée où de bonnes qualités d'accrochage sont requises, il est intéressant de disposer d'un ski nerveux et dans lequel les vibrations sont éliminées. Pour une pratique du ski dans de la neige poudreuse, la nervosité du ski est moins importante. En effet, sur neige dure, le mécanisme de déclenchement et de conduite d'un virage met en oeuvre, au moment de la "prise de carre", la ligne de cotes interne du ski extérieur au virage. Le skieur, en régulant l'effort et la direction de cet effort sur la carre, obtient un virage de plus ou moins grand rayon. Par contre, sur neige poudreuse, le mécanisme de déclenchement du virage est totalement différent, puisque c'est par pivotement latéral des extrémités des skis autour de l'axe du skieur que l'on obtient le virage.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. On the other hand, on powder snow, 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.

Il est ainsi compréhensible qu'il est parfois difficile d'utiliser les mêmes skis, avec un rendement optimal, dans les différentes natures de neige.It is therefore understandable that it is sometimes difficult to use the same skis, with optimal performance, in the different types of snow.

Il a été imaginé de réaliser un ski, de section sensiblement rectangulaire, dont les deux chants sont réalisés dans des matériaux de caractéristiques mécaniques différentes. Les deux skis d'une même paire ayant des chants correspondants de matériaux différents, il est possible pour l'utilisateur, en inversant ses deux skis, de disposer les chants possédant les mêmes caractéristiques, soit en vis-à-vis, soit en position opposée.It has been imagined to produce a ski, of substantially rectangular section, the two edges of which are made of materials with different mechanical characteristics. The two skis of the same pair having corresponding edges of different materials, it is possible for the user, by reversing his two skis, to have the edges having the same characteristics, either opposite, or in position opposite.

Sur neige poudreuse, les chants réalisés dans le matériau le plus rigide sont positionnés vers l'extérieur, tandis que sur neige dure, ils sont, par inversion des deux skis, disposés en vis-à-vis.On powder snow, 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.

Toutefois, si cette technique procure une certaine amélioration de comportement par rapport aux skis traditionnels, elle ne fournit pas un ski parfaitement adapté à des évolutions dans les meilleures conditions, sur des neiges de caractéristiques très différentes.However, if this technique provides a certain improvement in behavior compared to traditional skis, it does not provide a ski which is perfectly adapted to developments in the best conditions, on snow with very different characteristics.

Il est possible d'affirmer que les modifications de structures ne suffisent pas à résoudre ce problème de polyvalence des skis. Un autre paramètre vient influencer la facilité de déclenchement d'un virage en neige poudreuse, qui est la forme du ski. Il a été expliqué qu'en neige poudreuse, les extrémités des skis doivent pivoter latéralement ; or, pour faciliter cette pénétration des skis dans la couche de neige, il est important de limiter "l'effort de coupe" par une face biseautée.It can be said that structural modifications are not enough to solve this problem of ski versatility. Another parameter influences the ease of initiation of a turn in powder snow, which is the shape of the ski. It has been explained that in powder snow, the ends of the skis must pivot laterally; however, to facilitate this penetration of the skis into the snow layer, it is important to limit "the cutting force" by a bevelled face.

Dans ce but, il a été imaginé de réaliser des skis dont la face supérieure est reliée à la face inférieure par des chants inclinés (FR 1.343.014). L'angle d'inclinaison des chants, par rapport à la face inférieure, peut être variable le long du ski, à savoir : plus aigu aux extrémités spatule et talon qu'au niveau du patin (US 3.272.522).For this purpose, it has been imagined to produce 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: more acute at the tips of the tip and the heel than at the level of the skate (US 3,272,522).

L'inclinaison des chants peut aussi être asymétrique, avec un côté plus aigu que l'autre (DE 1.939.540).The inclination of the edges can also be asymmetrical, with one side more acute than the other (DE 1,939,540).

Bien qu'il soit indéniable que ces skis à chants inclinés améliorent la facilité de déclenchement des virages en neige poudreuse, il faut constater que cette angulation au niveau de l'appui sous le pied de la carre interne n'est pas favorable au comportement du ski sur neige dure, car cet appui, ou "prise de carre", manquant de fermeté, perd de l'efficacité au moment du déclenchement du virage.Although it is undeniable that these skis with inclined edges improve the ease of initiating turns in powder snow, it should be noted that this angulation at the level of the support under the foot of the internal edge is not favorable to the behavior of the Skiing on hard snow, because this support, or "edge grip", lacking firmness, loses efficiency when the turn is initiated.

Il conviendrait donc, pour un skieur désireux de toujours skier dans des conditions optimales, de disposer de plusieurs paires de skis, adaptées chacune à un type de neige déterminé. Or, ceci est difficile pour diverses raisons, notamment des raisons financières, ou des raisons pratiques ne permettant pas toujours le transport simultané de plusieurs paires de ski par une même personne, ou encore du fait de changements rapides de la nature du terrain et/ou de la qualité de la neige ne permettant pas un changement immédiat des skis.It would therefore be advisable, for a skier wishing to always ski in optimal conditions, to have several pairs of skis, each adapted to a specific type of snow. However, this is difficult for various reasons, in particular financial reasons, or practical reasons not always allowing the simultaneous transport of several pairs of skis by the same person, or due to rapid changes in the nature of the terrain and / or the quality of the snow does not allow immediate change of skis.

Un skieur est donc généralement obligé de choisir un ski présen­tant un compromis et dont les caractéristiques prédominantes correspondent au type de terrain et au type de neige qu'il préfère.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.

La présente invention vise à améliorer la polyvalence des skis existants, en fournissant un ski de forme adaptée, lui procurant un excellent comportement tant sur neige dure qu'en neige poudreuse.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.

A cet effet, le ski qu'elle concerne, dont les chants forment, sur au moins une partie de leur longueur, un angle avec la semelle, aigu, d'inclinaison variable de façon continue, et dont les deux chants sont asymétriques, est caractérisé en ce que l'angle d'inclinaison de l'un des chants augmente de la spatule au patin et diminue du patin au talon, tandis que l'angle d'inclinaison de l'autre chant diminue de la spatule au patin et augmente du patin au talon, les deux skis d'une même paire étant symé­triques l'un de l'autre par rapport à un plan situé longitudinalement à mi-distance entre les deux skis. Si les skis sont utilisés en neige poudreuse, ils sont chaussés de telle sorte que les chants comportant des extrémités biseautées soient tournés vers l'extérieur. Ces extrémités biseautées seront destinées a couper la couche de neige poudreuse. Cette inclinaison aux extrémités du ski, forme un angle aigu avec la semelle qui augmente progressivement en se rapprochant du milieu, ou patin du ski, jusqu'à obtenir, dans un exemple de réalisation, un chant perpendiculaire au niveau du pied du skieur.To this end, the ski which it concerns, whose edges form, over at least part of their length, an angle with the sole, acute, of continuously variable inclination, and whose two edges 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 bevelled 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.

Sur le deuxième côté de ce même ski, dans chacune de ses zones d'extrémités, c'est-à-dire dans ses zones situées à proximité de la spatule et du talon, le chant est vertical. Cette faible paroi contribue à limiter le risque de croisement des skis lorsqu'ils sont "noyés" en neige poudreuse. Sur ce côté, le chant s'incline progressivement en progressant, des extrémités spatule-talon au centre du ski, jusqu'à l'obtention, au niveau du patin, d'un chant incliné de l'extérieur vers l'intérieur et de la semelle vers la face supérieure du ski. Cette zone biseautée permet, en neige poudreuse, de couper le matelas de neige qui a tendance à s'amasser devant les pieds du skieur. Sur une neige plus dure, les deux skis sont chaussés de façon inversée. Dans ce cas, le chant de chaque ski tourné du côté intérieur est sensiblement vertical dans la zone de patin, ce qui assure une prise de carre "ferme". Dans cette position, au niveau du patin, les chants extérieurs de chacun des skis sont biseautés, ce qui diminue les efforts de frottement sur la neige.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. On this side, 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. In this case, the edge of each ski turned from the inside is substantially vertical in the skid area, which ensures a "firm" edge grip. In this position, at the level of the skate, the outer edges of each of the skis are bevelled, which reduces the friction forces on the snow.

Avantageusement, au niveau d'une section transversale prise en tout point de sa longueur, la somme des angles d'inclinaison des deux chants avec la semelle est comprise entre 120° et 150°.Advantageously, at a cross section taken at any point along its length, the sum of the angles of inclination of the two edges with the sole is between 120 ° and 150 °.

Une des particularités de ce ski réside dans le fait que les variations d'inclinaison des chants : décroissante de la spatule au patin et croissante du patin au talon, pour le premier côté, puis croissante de la spatule au patin et décroissante du patin au talon pour le deuxième côté du même ski, sont progressives afin d'éviter des discontinuités des caractéris­tiques de résistances mécaniques, de souplesse et de placage des skis.One of the peculiarities of this ski is that the variations in inclination of the edges: decreasing from the tip to the pad and increasing from the pad to the heel, for the first side, then increasing from the tip to the pad and decreasing from the pad to the heel for the second side of the same ski, are progressive in order to avoid discontinuities in the characteristics of mechanical strength, flexibility and plating of the skis.

Conformément à une forme de réalisation, l'inclinaison variable des chants résulte de la combinaison d'une surface supérieure du ski dont l'axe longitudinal est curviligne et de la ligne de cotes de la semelle du ski qui est symétrique par rapport à son axe rectiligne longitudinal.According to one embodiment, the 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.

Les deux arêtes délimitant la face supérieure peuvent être situées sur des arcs de cercles de même centre, sur des arcs de cercles de mêmes rayons et de centres différents, sur des arcs de cercles de rayons différents et de centres différents, sur des arcs de cercles obtenus par lissage de plusieurs arcs de cercles, sur des tronçons de courbes géométriques connues, telles que parabole, hyperbole, ellipse, ou sur des courbes obtenues par lissage de plusieurs de ces courbes géométriques connues.The two edges delimiting the upper face may be located on arcs of circles with the same center, on arcs of circles with the same radii and different centers, on arcs of circles with 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.

Selon un mode de réalisation de ce ski, la partie inclinée de chaque chant est disposée au-dessus d'une partie qui, située au niveau de la carre inférieure, est perpendiculaire au plan de la semelle.According to one embodiment of this ski, the inclined part of each edge is disposed above a part which, situated at the level of the lower edge, is perpendicular to the plane of the sole.

De toute façon, l'invention sera bien comprise à l'aide de la description qui suit en référence au dessin schématique annexé représentant à titre d'exemple non limitatif, une forme d'exécution de ce ski :

  • Figure 1 est une vue de dessus d'un ski, l'autre ski de la même paire étant symétrique par rapport à un plan situé longitudinalement à mi-distance entre les deux skis ;
  • Figures 2 à 4 en sont trois vues schématiques en coupe transver­sale à échelle agrandie, respectivement selon les lignes II-II, III-III, IV-IV de figure 1 ;
  • Figure 5 est une vue de dessus d'une paire de skis dans une configuration adaptée à la pratique du ski sur une neige dure ;
  • Figures 6 à 8 sont trois vues schématiques en coupe transversale de cette paire de skis, respectivement selon les lignes VI-VI, VII-VII et VIII-VIII de figure 5 ;
  • Figure 9 est une vue de dessus de la même paire de skis dans une configuration adaptée à la pratique du ski sur une neige poudreuse ;
  • Figures 10 à 12 sont trois vues schématiques en coupe transversale de cette paire de skis selon les lignes X-X, XI-XI et XII-XII de figure 9.
In any case, the invention will be clearly understood with the aid of the description which follows with reference to the appended schematic drawing representing by way of nonlimiting example, an embodiment of this ski:
  • Figure 1 is a top view of a ski, the other ski of the same pair being symmetrical with respect to a plane located longitudinally midway between the two skis;
  • Figures 2 to 4 are three schematic views in cross section on an enlarged scale, respectively along lines II-II, III-III, IV-IV of Figure 1;
  • Figure 5 is a top view of a pair of skis in a configuration suitable for skiing on hard snow;
  • Figures 6 to 8 are three schematic cross-sectional views of this pair of skis, respectively along lines VI-VI, VII-VII and VIII-VIII of Figure 5;
  • Figure 9 is a top view of the same pair of skis in a configuration suitable for skiing on powder snow;
  • Figures 10 to 12 are three schematic cross-sectional views of this pair of skis along lines XX, XI-XI and XII-XII of Figure 9.

Le ski représenté au dessin comprend une partie centrale 2, non décrite, délimitée par une face inférieure 3, une face supérieure 4 et deux chants latéraux 5 et 6. La zone de raccordement entre la face inférieure 3 équipée de la semelle de glissement, et chacun des chants latéraux 5 et 6 est munie de carres 7.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 is provided with edges 7.

Le ski selon l'invention comporte également, de façon connue, un certain nombre de zones décalées axialement les unes par rapport aux autres, à savoir de l'avant vers l'arrière, une zone avant ou spatule 8, une zone centrale ou patin 9, et une zone arrière ou talon 10.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.

Conformément à la caractéristique essentielle de l'invention, le chant 5, dans les zones de spatule et de talon, est incliné de l'extérieur du ski vers l'intérieur, et de la face inférieure 3 vers la face supérieure 4 de celui-ci. Ces surfaces inclinées, désignées respectivement par les références 12 et 13, forment avec la face inférieure du ski un angle, qui augmente de façon continue depuis chaque extrémité du ski vers la partie centrale ou patin de celui-ci. Inversement, la largeur de chaque partie inclinée 12,13, diminue lorsque l'on se rapproche de la partie centrale du ski.In accordance with the essential characteristic of the invention, 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. this. 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. Conversely, the width of each inclined part 12, 13 decreases when one approaches the central part of the ski.

Selon une autre caractéristique de l'invention, le chant 6 est sensiblement perpendiculaire aux surfaces inférieure 3 et supérieure 4 dans les zones de spatule 8 et de talon 10, et se présente sous forme d'une surface 14 inclinée de l'extérieur vers l'intérieur et de la face inférieure 3 vers la face supérieure 4, dans la zone centrale ou patin du ski.According to another characteristic of the invention, 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.

Il est à noter que la largeur de la face inclinée 14 diminue depuis la zone de patin en direction des extrémités du ski, tandis que l'angle formé entre la surface 14 et la face inférieure 3 augmente de façon continue depuis la zone de patin 9 en direction des zones de spatule 8 et de talon 10.It should be noted that 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.

Comme montré notamment à la figure 1, les arêtes 15 et 16 délimitées par la face supérieure 4 et les parties inclinées 12,13 d'une part, et 14 d'autre part, sont situées sur des lignes curvilignes. De ce fait, la face supérieure du ski, de surface inférieure à celle de la face inférieure 3, forme une surface courbe dont l'axe 17 coupe le plan médian longitudinal 18 de la face inférieure en avant et en arrière de la zone de patin 9.As shown in particular in FIG. 1, 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.

Les deux skis d'une même paire possédant une structure symé­trique, le skieur chausse les deux skis de la façon indiquée à la figure 5, s'il doit évoluer sur une neige dure. Dans un tel cas les deux skis comportent, au niveau de leurs chants en vis-à-vis, des parties formant sensiblement un angle droit avec les faces supérieure et inférieure dans la zone de patin 9, ce qui favorise l'accrochage du ski sur la neige.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. In such a case, 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.

Lorsque le skieur doit évoluer dans de la neige poudreuse ou hors piste, il chausse ses skis de la façon indiquée à la figure 9. Dans ce cas, les chants 5 sont situés du côté extérieur, et leurs surfaces inclinées disposées dans les zones de spatule et de talon favorisent le déclenchement des virages en "fendant" la neige. Les chants 6 se trouvant en regard l'un de l'autre, les surfaces inclinées 14 de ceux-ci favorisent l'évacuation du matelas de neige s'accumulant devant les pieds du skieur.When the skier has to move in powdery snow or off piste, he puts on his skis as shown in Figure 9. In this case, the 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.

Comme il ressort de ce qui précède, l'invention apporte une grande amélioration à la technique existante, en fournissant un ski possédant d'excellentes caractéristiques de polyvalence grâce à l'asymétrie de sa structure.As is apparent from the above, 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.

Comme il va de soi, l'invention ne se limite pas à la seule forme d'exécution de ce ski, décrite ci-dessus à titre d'exemple ; elle en embrasse, au contraire, toutes les variantes de réalisation. C'est ainsi notamment que les arêtes 15 et 16 pourraient ne pas être curvilignes, mais constituées par des segments de droites et que les chants pourraient ne pas être plans mais convexes ou concaves, sans que l'on sorte pour autant du cadre de l'inven­tion.It goes without saying that 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. Thus, in particular, 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.

Claims (9)

1 - Ski alpin dont les chants forment, sur au moins une partie de leur longueur, un angle avec la semelle, aigu, d'inclinaison variable de façon continue, et dont les deux chants sont asymétriques, caractérisé en ce que l'angle d'inclinaison de l'un (5) des chants augmente de la spatule (8) au patin (9) et diminue du patin (9) au talon (10), tandis que l'angle d'inclinaison de l'autre chant (6) diminue de la spatule (8) au patin (9) et augmente du patin (9) au talon (10), les deux skis d'une même paire étant symétriques l'un de l'autre par rapport à un plan situé longitudinalement à mi-distance entre les deux skis. 1 - Alpine ski whose edges form, over at least part of their length, an angle with the sole, acute, of continuously variable inclination, and whose two edges are asymmetrical, characterized in that the angle d the inclination of one (5) of the edges increases from the tip (8) to the pad (9) and decreases from the pad (9) to the heel (10), while the angle of inclination of the other edge ( 6) decreases from the tip (8) to the shoe (9) and increases from the shoe (9) to the heel (10), the two skis of the same pair being symmetrical to each other with respect to a plane located longitudinally midway between the two skis. 2 - Ski selon la revendication 1, caractérisé en ce que, au niveau d'une section transversale prise en tout point de sa longueur, la somme des angles d'inclinaison des deux chants (5,6) avec la semelle (3) est comprise entre 120° et 150°. 2 - Ski according to claim 1, characterized in that, at a cross section taken at any point along its length, the sum of the angles of inclination of the two edges (5,6) with the sole (3) is between 120 ° and 150 °. 3 - Ski selon l'une quelconque des revendications 1 et 2, carac­térisé en ce que l'inclinaison variable des chants (5,6) résulte de la combinaison d'une surface supérieure (4) du ski dont l'axe longitudinal est curviligne et de la ligne de cotes de la semelle (3) du ski qui est symétrique par rapport à son axe rectiligne longitudinal. 3 - Ski according to any one of claims 1 and 2, characterized in that the variable inclination of the edges (5,6) results from the combination of an upper surface (4) of the ski whose longitudinal axis is curvilinear and the dimension line of the sole (3) of the ski which is symmetrical with respect to its longitudinal rectilinear axis. 4 - Ski selon la revendication 3, caractérisé en ce que les arêtes (15,16) délimitées par la face supérieure (4) et les chants (5,6) sont situées sur des arcs de cercles de même centre. 4 - Ski according to claim 3, characterized in that the edges (15,16) delimited by the upper face (4) and the edges (5,6) are located on arcs of circles of the same center. 5 - Ski selon la revendication 3, caractérisé en ce que les arêtes délimitées par la face supérieure (4) et les chants (5,6) sont situées sur des arcs de cercles de centres différents et de même rayon. 5 - Ski according to claim 3, characterized in that the edges delimited by the upper face (4) and the edges (5,6) are located on arcs of circles of different centers and of the same radius. 6 - Ski selon la revendication 3, caractérisé en ce que les arêtes délimitées par la face supérieure (4) et les chants (5,6) sont situées sur des arcs de cercles de rayons différents et de centres différents. 6 - Ski according to claim 3, characterized in that the edges delimited by the upper face (4) and the edges (5,6) are located on arcs of circles of different radii and different centers. 7 - Ski selon la revendication 3, caractérisé en ce que les arêtes délimitées par la face supérieure (4) et les chants (5,6) sont situées sur des arcs de cercles obtenus par lissage de plusieurs arcs de cercles. 7 - Ski according to claim 3, characterized in that the edges delimited by the upper face (4) and the edges (5,6) are located on arcs of circles obtained by smoothing several arcs of circles. 8 - Ski selon la revendication 3, caractérisé en ce que les arêtes délimitées par la face supérieure (4) et les chants (5,6) sont situées sur des tronçons de courbes géométriques connues, telles que parabole, hyperbole, ellipse, ou sur des courbes obtenues par lissage de plusieurs de ces courbes géométriques connues. 8 - Ski according to claim 3, characterized in that the edges delimited by the upper face (4) and the edges (5,6) are located on sections of known geometric curves, such as parabola, hyperbola, ellipse, or on curves obtained by smoothing several of these known geometric curves. 9 - Ski selon l'une quelconque des revendications 1 à 8, caractérisé en ce que la partie inclinée de chaque chant est disposée au-dessus d'une partie qui, située au niveau de la carre inférieure, est perpendiculaire au plan de la semelle (3). 9 - Ski according to any one of claims 1 to 8, characterized in that the inclined part of each edge is arranged above a part which, situated at the level of the lower edge, is perpendicular to the plane of the sole (3).
EP89420482A 1988-12-07 1989-12-06 Alpine ski Expired - Lifetime EP0373083B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89420482T ATE79047T1 (en) 1988-12-07 1989-12-06 ALPINE SKI.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8817569 1988-12-07
FR8817569A FR2639836B1 (en) 1988-12-07 1988-12-07 ALPINE SKIING

Publications (2)

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

Family

ID=9373695

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89420482A Expired - Lifetime EP0373083B1 (en) 1988-12-07 1989-12-06 Alpine ski

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US (1) US4971350A (en)
EP (1) EP0373083B1 (en)
AT (1) ATE79047T1 (en)
DE (1) DE68902385T2 (en)
ES (1) ES2034732T3 (en)
FR (1) FR2639836B1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3045212A1 (en) 2015-01-19 2016-07-20 Mojmir Flisek Ski edge and sidewall cross section profile

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2618079B1 (en) * 1987-07-15 1995-03-31 Salomon Sa SKI WITH MIXED SUPERIOR FACE
FR2705905B1 (en) * 1993-06-02 1995-07-07 Rossignol Sa Advanced profile ski.
NO940482D0 (en) * 1994-02-11 1994-02-11 Joergen Karlsen Alpine Parski
AT406735B (en) * 1996-06-27 2000-08-25 Atomic Austria Gmbh SKI COUPLE FOR ALPINE SKIING
US6663137B2 (en) 1998-03-10 2003-12-16 Karlsen Joergen Snowboard
CA2319274C (en) * 1999-01-07 2007-12-18 Walter Stucki Security edge for ski and snowboard
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 (en) * 2003-06-02 2005-08-26 Salomon Sa SKIING PROVIDED FOR THE PRACTICE OF ALPINE SKIING
US20050269801A1 (en) * 2004-06-02 2005-12-08 Ski Logic D/B/A Scottybob Snow Skis And Snowboards Having Split Tips And/Or Tails

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2598932A1 (en) * 1986-05-23 1987-11-27 Salomon Sa DISSYMMETRIC PROFILE SKIING
FR2598931A1 (en) * 1986-05-23 1987-11-27 Salomon Sa PROFILE SKI WITH VARIABLE DISSYMETRY
FR2611517A1 (en) * 1987-02-27 1988-09-09 Salomon Sa PROFILE BOX SKI

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1343014A (en) * 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 (en) * 1969-08-04 1971-02-18 Christian Meyer Remote control device for movement toys
US4700967A (en) * 1985-12-13 1987-10-20 Tristar Sports Inc. Asymmetric alpine ski with offset boot platform
FR2598929B1 (en) * 1986-05-23 1989-09-08 Salomon Sa PROFILE SKIING
US4895388A (en) * 1988-05-17 1990-01-23 Richmond William D Pair of skis

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2598932A1 (en) * 1986-05-23 1987-11-27 Salomon Sa DISSYMMETRIC PROFILE SKIING
FR2598931A1 (en) * 1986-05-23 1987-11-27 Salomon Sa PROFILE SKI WITH VARIABLE DISSYMETRY
FR2611517A1 (en) * 1987-02-27 1988-09-09 Salomon Sa PROFILE BOX SKI

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3045212A1 (en) 2015-01-19 2016-07-20 Mojmir Flisek Ski edge and sidewall cross section profile

Also Published As

Publication number Publication date
DE68902385D1 (en) 1992-09-10
ES2034732T3 (en) 1993-04-01
US4971350A (en) 1990-11-20
FR2639836A1 (en) 1990-06-08
DE68902385T2 (en) 1992-12-10
ATE79047T1 (en) 1992-08-15
EP0373083B1 (en) 1992-08-05
FR2639836B1 (en) 1991-01-11

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