EP0753330B1 - Means for practising cross-country skiing, using skating technique - Google Patents

Means for practising cross-country skiing, using skating technique Download PDF

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Publication number
EP0753330B1
EP0753330B1 EP96420222A EP96420222A EP0753330B1 EP 0753330 B1 EP0753330 B1 EP 0753330B1 EP 96420222 A EP96420222 A EP 96420222A EP 96420222 A EP96420222 A EP 96420222A EP 0753330 B1 EP0753330 B1 EP 0753330B1
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Prior art keywords
ski
country skiing
level
boot
wedge
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German (de)
French (fr)
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EP0753330A1 (en
Inventor
Robert Lazzaroni
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Skis Rossignol SA
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Skis Rossignol SA
Rossignol SA
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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
    • A63C5/003—Structure, covering or decoration of the upper ski surface

Definitions

  • the invention relates to means for practicing cross-country skiing, more particularly intended for the technique known as "the skater's step”.
  • this technique in a known manner, consists in evolving by making diverge your skis from the direction of progression, progression proper being provided by the alternative exercise of impulses transverse by the skier on one of his skis.
  • this technique consists in ensuring the progression not by the exercise of a thrust in the longitudinal direction, but at the contrary by means of successive and alternating transverse supports. he It is therefore advisable to optimize the grip, that is to say the impulse, by making it as effective as possible, therefore ensuring when taking pulse, maximum energy transfer.
  • the ski In order to reduce the duration of this pulse, and to decrease it effort, so the ski must be able to tilt easily on its edge internal without causing too much energy loss by the skier, nor inherent resistance to friction of the ski on the internal edge by its progression in the tilted position.
  • This tilting of the ski on its edge Internal movement is accomplished by moving the knee inward. It is conditioned by two essential parameters related to skiing, namely the width of the ski and the distance from the point of application of the tilting force, typically formed by the knee, relative to the base of the sole, that is to say with respect to the sliding face of the ski sole. In other words, these two parameters can be summed up in the way following: the width of the ski sole and the distance between the base of this sole and the base of support of the skier's shoe on the ski, these two parameters being measured at the level of the ski skid.
  • this tilting of the ski by relation to the internal edge is analyzed as a rotational movement by relative to an axis formed by this edge, and the energy required to perform this tilting amounts to calculating the moment of the force at the origin of rotation relative to this axis of articulation.
  • the defining characteristics the value of this moment consist of the intensity of the force on the one hand, and by the distance from the point of application of this force relative to the axis of articulation on the other hand, the term distance in front be heard in its geometric sense.
  • a solution may consist in increasing this distance from the point of application.
  • the invention therefore aims to reduce the energy required to set up works this tilting around the internal edge, in order to be able allow this support, while maintaining a duration of acceptable tilting.
  • the invention therefore relates to a means for achieving the better compromise between the energy required for tilting and the duration of it.
  • these means comprising at least two skis each fitted with a binding allowing the front to be secured from the skier's shoe to the ski, said means having at the level of the thickest area of the skis, and typically at the level of the skate, a thickness such that the ratio of the width of the sole of the skis to skate level over the distance between the sliding surface and the sole of the skis from the base of the boot to the surface upper of the skis or on the plate for fixing said boot to the ski is between 0.6 and 1.2.
  • the invention consists in increasing the height between the sole of the ski and the boot, and more precisely of the base support of the boot on the binding of the ski.
  • the fundamental characteristic means for a complete ski that is to say, provided with its binding if necessary, WHEREAS the defined report takes into account the support base of the shoe.
  • This support base is itself well defined, and corresponds to the sole surface of the shoe actually resting on the ski, or on the plate of the binding, or on any added element or integrated on or in the ski, during the impulse phase.
  • the known elevations in the ski area in no case have the same or similar purpose as that of cross-country skiing, since in particular, the principle of progression put in work is totally different.
  • the height defined above that is to say the distance between the sliding surface of the sole of the ski and the base support of the boot on the upper surface of the ski, or on the plate of the binding or on any raised element attached to the ski, is at least equal to 40 mm and at most equal to 60 mm.
  • this height can be obtained by fitting a shim added to the upper surface of the ski, on which the binding is placed allowing the binding of the boot to the ski, possibly with its own fixing plate or plate.
  • the shims thus added have a thickness comprised between 5 and 30 mm, and advantageously close to 10 mm.
  • this wedge is integrated into the internal structure of the ski.
  • said wedge is inclined in direction of the front end of the ski, the area at the heel constituting the highest point.
  • a layer of a visco-elastic element we interlayer between the cleat and the upper surface of the ski at the level of the skate, a layer of a visco-elastic element, in order to increase the comfort of the skier.
  • the wedge is integrated into the level of the mounting plate.
  • the height of the plate is between 10 and 30 mm.
  • FIG. 1 therefore schematically shows a cross-country ski represented in section longitudinal.
  • This ski (1) has, in known manner, two ends, respectively the heel (2) and the spatula (3), and also includes a gliding sole (4) extending over the entire length of the ski.
  • the skate area corresponding to a substantially central area is the thickest area of the ski.
  • This zone of the shoe (5) receives the fixing, allowing the front of the ski boot.
  • this area of the skate has an elevation (6) which, in this case, is integrated in the internal structure of the ski.
  • the upper face (7) of the ski does not present any discontinuity of nature, i.e. the layer upper, most often decorated, is continuous and envelops the outgrowth constituted by this elevation.
  • the thickness at the level of the pad reaches, taking into account this elevation (6), a height D of 45 mm, said height being measured from the sliding face of the sole (4) to the bearing face (6) of the boot, that is to say facing the level of which it is fixed on the binding and on which comes to rest the foot of the skier in the impulse phase.
  • the ski itself is a traditional cross-country ski, the thickness d of which at the level of the skate is typically 35 mm and its width L of 45 mm.
  • This ski receives a wedge (8) attached to the upper face (7) of the ski by any means, in particular by bonding.
  • a sheet of visco-elastic material (9) intended to dampen vibrations, and more generally, to increase the comfort of use of the skier.
  • FIG 3 a cross section of the ski of Figure 2, made at the level of the skate.
  • the reference G 1 schematically represents the knee of the user on a traditional ski, and it can be observed in fact that the positioning of the wedge (8) allows the knee to be moved away in a position G 2 from the gliding sole (4), and thereby decreasing the angle ⁇ 2 ⁇ 1 defined by the intersection of the straight line joining points G 2 and G 1 of one of the edges (11, 12) of the sole respectively sliding of the ski, and of the plane integrating the side edges (13, 14) of said ski.
  • the wedge (8) is higher at the heel (10), that is to say at the point of support of the skier's heel, and therefore has a certain downward inclination towards the front of the ski. In this way, we induce the displacement of the center of gravity of the skier upstream, typically in front of the binding, favoring the practice of the so-called "skater's step” technique.
  • the wedge (8) provided with the fixing, can be joined reversibly to the surface upper of the ski, so that it is possible to select the type of cleat desired, especially in terms of thickness, profile, or rigidity, in depending on the type of snow encountered.
  • the increase in height separating the gliding sole from the base support of the skier's shoe can be obtained by providing the fixing of a relatively thick plate, suitable for replace the role of the shim (8), or achieve this result in combination with a thinner shim.
  • the skis according to the invention therefore favor pivoting relative to at their internal edge, reducing the time required for this pivoting or tilting, and hence, optimizing the setting phase impulse, fundamental during progression according to the so-called technique of the skater's step.

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Instructional Devices (AREA)

Abstract

The ski has a raised part (6) on the upper surface of the ski and at the level of its sliding zone (5). The ratio of the width of the sole of the ski at this level to the distance separating its lower surface (4) and the base of the boot on its upper surface (7) is between 0.6 and 1.2. A wedge, which is preferably 10 mm thick, can be fixed to the upper surface of the ski. A layer of visco-elastic material is put between the wedge and the upper surface of the ski.

Description

L'invention concerne des moyens pour pratiquer le ski de fond, plus particulièrement destinés à la technique dite du "pas du patineur".The invention relates to means for practicing cross-country skiing, more particularly intended for the technique known as "the skater's step".

De manière connue, cette technique, mieux connue sous l'expression en langue anglaise "skating", consiste à évoluer en faisant diverger ses skis par rapport à la direction de progression, la progression proprement dite étant assurée par l'exercice alternatif d'impulsions transversales par le skieur sur l'un de ses skis.In a known manner, this technique, better known as the expression in English "skating", consists in evolving by making diverge your skis from the direction of progression, progression proper being provided by the alternative exercise of impulses transverse by the skier on one of his skis.

Cette technique se décompose pour chaque ski essentiellement en quatre phases successives, respectivement une première phase où le ski est en appui externe, suivie d'une phase de glisse à plat, suivie à son tour par une phase d'impulsions sur la face interne du ski, notamment sur l'arête interne, et enfin par une phase dite "de vol", pendant laquelle le ski quitte la neige jusqu'à l'appui du mouvement suivant (première phase). Il existe en fait un décalage dans le temps des ces phases d'un ski par rapport à l'autre, la phase de glisse de l'un correspondant sensiblement à la phase de prise d'impulsion de l'autre.This technique is broken down for each ski essentially into four successive phases, respectively a first phase where skiing is in external support, followed by a flat gliding phase, followed in turn by a phase of pulses on the internal face of the ski, in particular on the internal edge, and finally by a so-called "flight" phase, during which the ski leaves the snow until the next movement is pressed (first phase). There is in fact a time lag between these phases of a ski compared to the other, the sliding phase of the corresponding one substantially at the impulse phase of the other.

En d'autres termes, cette technique consiste à assurer la progression non pas par l'exercice d'une poussée dans le sens longitudinal, mais au contraire au moyen d'appuis transversaux successifs et alternés. Il convient donc d'optimiser la prise d'appui, c'est-à-dire l'impulsion, en la rendant aussi efficace que possible, donc en assurant lors de cette prise d'impulsion, le transfert maximum d'énergie. In other words, this technique consists in ensuring the progression not by the exercise of a thrust in the longitudinal direction, but at the contrary by means of successive and alternating transverse supports. he It is therefore advisable to optimize the grip, that is to say the impulse, by making it as effective as possible, therefore ensuring when taking pulse, maximum energy transfer.

Afin de réduire la durée de cette prise d'impulsion, et d'en diminuer l'effort, il faut donc que le ski puisse basculer facilement sur sa carre interne sans engendrer de perte d'énergie trop importante par le skieur, ni de résistance inhérente au frottement du ski sur l'arête interne de par sa progression en position basculée. Ce basculement du ski sur sa carre interne s'effectue par déplacement du genou vers l'intérieur. Il est conditionné par deux paramètres essentiels liés au ski, à savoir la largeur du ski et la distance du point d'application de la force de basculement, typiquement constitué par le genou, par rapport à la base de la semelle, c'est-à-dire par rapport à la face de glissement de la semelle du ski. En d'autres termes, ces deux paramètres peuvent se résumer de la manière suivante : la largeur de la semelle du ski et la distance entre la base de cette semelle et la base d'appui de la chaussure du skieur sur le ski, ces deux paramètres étant mesurés au niveau du patin du ski.In order to reduce the duration of this pulse, and to decrease it effort, so the ski must be able to tilt easily on its edge internal without causing too much energy loss by the skier, nor inherent resistance to friction of the ski on the internal edge by its progression in the tilted position. This tilting of the ski on its edge Internal movement is accomplished by moving the knee inward. It is conditioned by two essential parameters related to skiing, namely the width of the ski and the distance from the point of application of the tilting force, typically formed by the knee, relative to the base of the sole, that is to say with respect to the sliding face of the ski sole. In other words, these two parameters can be summed up in the way following: the width of the ski sole and the distance between the base of this sole and the base of support of the skier's shoe on the ski, these two parameters being measured at the level of the ski skid.

Selon un schéma simplifié et statique, ce basculement du ski par rapport à l'arête interne s'analyse comme un mouvement de rotation par rapport à un axe constitué par cette arête, et l'énergie nécessaire pour effectuer ce basculement revient à calculer le moment de la force à l'origine de la rotation par rapport à cet axe d'articulation. Les caractéristiques déterminant la valeur de ce moment sont constituées par l'intensité de la force exercée d'une part, et par la distance du point d'application de cette force par rapport à l'axe d'articulation d'autre part, le terme distance devant être entendu dans son acception géométrique. De fait, dès lors que l'on souhaite réduire l'intensité de la force à exercer pour basculer le ski, une solution peut consister à augmenter cette distance du point d'application.According to a simplified and static diagram, this tilting of the ski by relation to the internal edge is analyzed as a rotational movement by relative to an axis formed by this edge, and the energy required to perform this tilting amounts to calculating the moment of the force at the origin of rotation relative to this axis of articulation. The defining characteristics the value of this moment consist of the intensity of the force on the one hand, and by the distance from the point of application of this force relative to the axis of articulation on the other hand, the term distance in front be heard in its geometric sense. In fact, as soon as we wishes to reduce the intensity of the force to be exerted to tip the ski, a solution may consist in increasing this distance from the point of application.

En revanche, augmenter cette distance revient à augmenter la durée de prise d'appui, c'est à dire, la durée nécessaire au basculement du ski. L'invention vise donc à diminuer l'énergie nécessaire pour mettre en oeuvre ce basculement autour de l'arête interne, afin de pouvoir permettre cette prise d'appui, tout en conservant une durée de basculement acceptable.On the other hand, increasing this distance amounts to increasing the duration of support, that is to say, the duration necessary for the tilting of the ski. The invention therefore aims to reduce the energy required to set up works this tilting around the internal edge, in order to be able allow this support, while maintaining a duration of acceptable tilting.

L'invention concerne donc un moyen permettant d'aboutir au meilleur compromis entre l'énergie nécessaire au basculement et la durée de celui-ci.The invention therefore relates to a means for achieving the better compromise between the energy required for tilting and the duration of it.

Elle concerne donc des moyens pour pratiquer le ski de fond selon la technique du "pas de patineur", ces moyens comprenant au moins deux skis munis chacun d'une fixation permettant la solidarisation de l'avant de la chaussure du skieur au ski, lesdits moyens présentant au niveau de la zone la plus épaisse des skis, et typiquement au niveau du patin, une épaisseur telle, que le rapport de la largeur de la semelle des skis au niveau du patin sur la distance séparant la surface de glissement de la semelle des skis de la base d'appui de la chaussure sur la surface supérieure des skis ou sur la platine de la fixation de ladite chaussure au ski est compris entre 0,6 et 1,2.It therefore relates to means for practicing cross-country skiing according to the "no skater" technique, these means comprising at least two skis each fitted with a binding allowing the front to be secured from the skier's shoe to the ski, said means having at the level of the thickest area of the skis, and typically at the level of the skate, a thickness such that the ratio of the width of the sole of the skis to skate level over the distance between the sliding surface and the sole of the skis from the base of the boot to the surface upper of the skis or on the plate for fixing said boot to the ski is between 0.6 and 1.2.

En d'autres termes, l'invention consiste à augmenter la hauteur entre la semelle du ski et la chaussure, et plus précisément de la base d'appui de la chaussure sur la fixation du ski.In other words, the invention consists in increasing the height between the sole of the ski and the boot, and more precisely of the base support of the boot on the binding of the ski.

De la sorte, de par l'augmentation de la distance séparant alors le pied de la base de la semelle ou le prolongement du pied, c'est-à-dire du genou de la base de la semelle, on diminue la force nécessaire au basculement du ski. En effet, cette énergie est directement dépendante de l'angle défini par l'intersection de la droite joignant le genou à l'arête interne de rotation du ski et du plan intégrant la face latérale ou chant dudit ski. De la sorte, plus on éloigne le genou de la base de la semelle, et partant de l'arête, plus cet angle diminue, et de fait plus on réduit la force nécessaire au basculement par rapport à ladite arête. In this way, by increasing the distance separating the foot from the base of the sole or the extension of the foot, i.e. knee from the base of the sole, the force required to tilting of the ski. Indeed, this energy is directly dependent on the angle defined by the intersection of the right joining the knee to the edge internal ski and plane rotation integrating the side face or edge said ski. In this way, the further the knee is moved away from the base of the sole, and starting from the edge, the more this angle decreases, and in fact the more the force is reduced necessary for tilting with respect to said edge.

Au sens de l'invention, la caractéristique fondamentale s'entend pour un ski complet, c'est à dire, muni le cas échéant de sa fixation, attendu que le rapport défini prend en compte la base d'appui de la chaussure. Cette base d'appui est elle-même bien définie, et correspond à la surface de la semelle de la chaussure prenant effectivement appui sur le ski, ou sur la platine de la fixation, ou sur tout élément rapporté ou intégré sur ou dans le ski, lors de la phase d'impulsion.Within the meaning of the invention, the fundamental characteristic means for a complete ski, that is to say, provided with its binding if necessary, WHEREAS the defined report takes into account the support base of the shoe. This support base is itself well defined, and corresponds to the sole surface of the shoe actually resting on the ski, or on the plate of the binding, or on any added element or integrated on or in the ski, during the impulse phase.

Le principe de surélévation ou de l'augmentation de l'épaisseur d'un ski, est bien connu dans le domaine des skis alpins. Cependant, dans ce contexte particulier, cette surélévation vise des buts totalement différents de ceux du domaine du ski de fond. Ces buts peuvent être résumés rapidement :

  • amortissement, c'est-à-dire filtration des vibrations du ski, vibrations provenant notamment de la vitesse du ski alpin, sans commune mesure avec la vitesse du ski de fond ;
  • débridage du ski, compte tenu de l'effet de serrage inhérent aux fixations avant et arrière en opposition par rapport à la semelle de la chaussure ; cet effet de serrage ne se retrouve en aucun cas dans le domaine du ski de fond, attendu que la chaussure n'est fixée au ski que par son extrémité antérieure, le talon étant en effet libre de se déplacer au moins verticalement ;
  • limitation voire suppression des risques de ripage de la chaussure compte tenu de la largeur de la chaussure.
The principle of raising or increasing the thickness of a ski is well known in the field of alpine skis. However, in this particular context, this elevation aims at goals that are completely different from those in the cross-country ski area. These goals can be quickly summarized:
  • damping, that is to say filtration of the vibrations of the ski, vibrations originating in particular from the speed of the alpine ski, without common measure with the speed of the cross-country ski;
  • unlocking of the ski, taking into account the tightening effect inherent in the front and rear bindings in opposition with respect to the sole of the boot; this tightening effect is not found in any case in the field of cross-country skiing, since the boot is only fixed to the ski by its anterior end, the heel being indeed free to move at least vertically;
  • limitation or elimination of the risk of the shoe slipping taking into account the width of the shoe.

En d'autres termes, les surélévations connus dans le domaine du ski alpin n'ont en aucun cas une finalité identique ou similaire de celle du ski de fond, puisque notamment, le principe de progression mis en oeuvre est totalement différent. In other words, the known elevations in the ski area in no case have the same or similar purpose as that of cross-country skiing, since in particular, the principle of progression put in work is totally different.

Avantageusement, la hauteur définie ci-dessus, c'est à dire la distance séparant la surface de glissement de la semelle du ski de la base d'appui de la chaussure sur la surface supérieure du ski, ou sur la platine de la fixation ou sur tout élément de surélévation rapporté sur le ski , est au moins égale à 40 mm et au plus égale à 60 mm.Advantageously, the height defined above, that is to say the distance between the sliding surface of the sole of the ski and the base support of the boot on the upper surface of the ski, or on the plate of the binding or on any raised element attached to the ski, is at least equal to 40 mm and at most equal to 60 mm.

Selon une première forme de réalisation de l'invention, cette hauteur peut être obtenue par la mise en place d'une cale rapportée sur la surface supérieure du ski, sur laquelle est mise en place la fixation permettant la solidarisation de la chaussure au ski, éventuellement munie de sa propre plaque ou platine de fixation.According to a first embodiment of the invention, this height can be obtained by fitting a shim added to the upper surface of the ski, on which the binding is placed allowing the binding of the boot to the ski, possibly with its own fixing plate or plate.

Dans ce cas, les cales ainsi rapportées ont une épaisseur comprise entre 5 et 30 mm, et avantageusement voisine de 10 mm.In this case, the shims thus added have a thickness comprised between 5 and 30 mm, and advantageously close to 10 mm.

Dans une autre forme de réalisation, cette cale est intégrée dans la structure interne du ski.In another embodiment, this wedge is integrated into the internal structure of the ski.

Selon une variante de l'invention, ladite cale est inclinée en direction de l'extrémité antérieure du ski, la zone au niveau du talon constituant le point le plus élevé.According to a variant of the invention, said wedge is inclined in direction of the front end of the ski, the area at the heel constituting the highest point.

Enfin, selon une autre forme de réalisation de l'invention, on intercale entre la cale rapportée et la surface supérieure du ski au niveau du patin, une couche d'un élément visco-élastique, afin d'augmenter le confort du skieur.Finally, according to another embodiment of the invention, we interlayer between the cleat and the upper surface of the ski at the level of the skate, a layer of a visco-elastic element, in order to increase the comfort of the skier.

Dans une autre variante de l'invention, la cale est intégrée au niveau de la platine de la fixation. Dans ce cas, la hauteur de la platine est comprise entre 10 et 30 mm. In another variant of the invention, the wedge is integrated into the level of the mounting plate. In this case, the height of the plate is between 10 and 30 mm.

La manière dont l'invention peut être réalisée et les avantages qui en découlent, ressortiront mieux des exemples de réalisation qui suivent, donnés à titre indicatif mais non limitatif à l'appui des figures annexées.

  • La figure 1 est une représentation schématique en section longitudinale d'un ski de fond conforme à une première forme de réalisation de l'invention.
  • La figure 2 est une représentation analogue à la figure 1 d'une autre forme de réalisation de l'invention.
  • La figure 3 est une représentation schématique en section transversale du ski selon la ligne III - III de la figure 2.
  • La figure 4 est une autre forme de réalisation de l'invention.
    • The manner in which the invention can be implemented and the advantages which ensue therefrom will emerge more clearly from the following exemplary embodiments, given by way of indication but not limiting in support of the appended figures.
  • Figure 1 is a schematic representation in longitudinal section of a cross-country ski according to a first embodiment of the invention.
  • Figure 2 is a representation similar to Figure 1 of another embodiment of the invention.
  • FIG. 3 is a diagrammatic representation in cross section of the ski along line III - III of FIG. 2.
  • Figure 4 is another embodiment of the invention.

    • La figure 1 schématise donc un ski de fond représenté en section longitudinale. Ce ski (1) comporte de manière connue deux extrémités, respectivement le talon (2) et la spatule (3), et comprend également une semelle de glisse (4) s'étendant sur toute la longueur du ski.Figure 1 therefore schematically shows a cross-country ski represented in section longitudinal. This ski (1) has, in known manner, two ends, respectively the heel (2) and the spatula (3), and also includes a gliding sole (4) extending over the entire length of the ski.

    De manière traditionnelle, la zone du patin correspondant à une zone sensiblement centrale, est la zone la plus épaisse du ski. Cette zone du patin (5) reçoit la fixation, permettant la solidarisation de l'avant de la chaussure au ski. Selon une caractéristique de l'invention, cette zone du patin comporte une surélévation (6) qui, dans le cas d'espèce, est intégrée dans la structure interne du ski. En d'autres termes, la face supérieure (7) du ski ne présente pas de discontinuité de nature, c'est à dire la couche supérieure, portant le plus souvent un décor, est continue et enveloppe l'excroissance constituée par cette surélévation. Traditionally, the skate area corresponding to a substantially central area, is the thickest area of the ski. This zone of the shoe (5) receives the fixing, allowing the front of the ski boot. According to a characteristic of the invention, this area of the skate has an elevation (6) which, in this case, is integrated in the internal structure of the ski. In other words, the upper face (7) of the ski does not present any discontinuity of nature, i.e. the layer upper, most often decorated, is continuous and envelops the outgrowth constituted by this elevation.

    L'épaisseur au niveau du patin atteint, compte tenu de cette surélévation (6), une hauteur D de 45 mm, ladite hauteur étant mesurée de la face de glisse de la semelle (4) à la face d'appui (6) de la chaussure, c'est-à-dire face au niveau de laquelle elle vient se fixer sur la fixation et sur laquelle vient prendre appui le pied du skieur en phase d'impulsion.The thickness at the level of the pad reaches, taking into account this elevation (6), a height D of 45 mm, said height being measured from the sliding face of the sole (4) to the bearing face (6) of the boot, that is to say facing the level of which it is fixed on the binding and on which comes to rest the foot of the skier in the impulse phase.

    Typiquement, le ski a une largeur L au niveau du patin de 45 mm, de sorte que le rapport : largeurhauteur = 1 Typically, the ski has a width L at the level of the skate of 45 mm, so that the ratio: width height = 1

    On a pu se rendre compte que cette surélévation favorisait particulièrement le pivotement du ski sur son arête interne, permettant d'optimiser la prise d'impulsion par le skieur.We could realize that this elevation favored particularly the pivoting of the ski on its internal edge, allowing optimize the skier's impulse.

    Dans une autre forme de réalisation représentée sur la figure 2, le ski en lui-même est un ski de fond traditionnel, dont l'épaisseur d au niveau du patin est typiquement de 35 mm et sa largeur L de 45 mm. Ce ski reçoit une cale (8) rapportée sur la face supérieure (7) du ski par tout moyen, notamment par collage. Avantageusement, entre la face supérieure (7) et la cale (8), est insérée une feuille d'un matériau visco-élastique (9) destinée à amortir les vibrations, et de manière plus générale, à accroítre le confort d'utilisation du skieur.In another embodiment shown in FIG. 2, the ski itself is a traditional cross-country ski, the thickness d of which at the level of the skate is typically 35 mm and its width L of 45 mm. This ski receives a wedge (8) attached to the upper face (7) of the ski by any means, in particular by bonding. Advantageously, between the upper face (7) and the shim (8), is inserted a sheet of visco-elastic material (9) intended to dampen vibrations, and more generally, to increase the comfort of use of the skier.

    La cale présente typiquement une épaisseur e de 10 mm, de sorte que l'on obtient, avec une épaisseur f standard de 3 mm de la platine (15) de la fixation un rapport : LD = largeurhauteur = 0,94 The wedge typically has a thickness e of 10 mm, so that a ratio f is obtained with a standard thickness f of 3 mm of the plate (15): L D = width height = 0.94

    On a représenté sur la figure 3 une section transversale du ski de la figure 2, réalisée au niveau du patin. La référence G1 représente schématiquement le genou de l'utilisateur sur un ski traditionnel, et l'on observe de fait, que la mise en place de la cale (8), permet d'éloigner le genou selon une position G2 de la semelle de glisse (4), et partant de diminuer l'angle α2 < α1 défini par l'intersection de la droite joignant respectivement les points G2 et G1 de l'une des arêtes (11, 12) de la semelle de glisse du ski, et du plan intégrant les chants latéraux (13, 14) dudit ski.There is shown in Figure 3 a cross section of the ski of Figure 2, made at the level of the skate. The reference G 1 schematically represents the knee of the user on a traditional ski, and it can be observed in fact that the positioning of the wedge (8) allows the knee to be moved away in a position G 2 from the gliding sole (4), and thereby decreasing the angle α 2 <α 1 defined by the intersection of the straight line joining points G 2 and G 1 of one of the edges (11, 12) of the sole respectively sliding of the ski, and of the plane integrating the side edges (13, 14) of said ski.

    Dans une version avantageuse de cette forme de réalisation, représentée sur la figure 4, la cale (8) est plus élevée au niveau du talon (10), c'est à dire au niveau du point d'appui du talon du skieur, et présente donc une certaine inclinaison descendante en direction de l'avant du ski. De la sorte, on induit le déplacement du centre de gravité du skieur en amont, typiquement en avant par rapport à la fixation, favorisant la pratique de la technique dite du "pas du patineur".In an advantageous version of this embodiment, shown in Figure 4, the wedge (8) is higher at the heel (10), that is to say at the point of support of the skier's heel, and therefore has a certain downward inclination towards the front of the ski. In this way, we induce the displacement of the center of gravity of the skier upstream, typically in front of the binding, favoring the practice of the so-called "skater's step" technique.

    Dans une variante des deux dernières formes de réalisation, la cale (8), muni de la fixation, est solidarisable réversiblement à la surface supérieure du ski, de sorte, qu'il est possible de sélectionner le type de cale souhaitée, notamment en termes d'épaisseur, de profil, ou de rigidité, en fonction du type de neige rencontrée.In a variant of the last two embodiments, the wedge (8), provided with the fixing, can be joined reversibly to the surface upper of the ski, so that it is possible to select the type of cleat desired, especially in terms of thickness, profile, or rigidity, in depending on the type of snow encountered.

    Par ailleurs, toujours dans l'optique de la présente invention, l'augmentation de la hauteur séparant la semelle de glisse de la base d'appui de la chaussure du skieur, peut être obtenue en munissant la fixation d'une platine d'épaisseur relativement importante, propre à remplacer la rôle de la cale (8), ou à aboutir à ce résultat en combinaison avec une cale moins épaisse. Furthermore, still in the context of the present invention, the increase in height separating the gliding sole from the base support of the skier's shoe, can be obtained by providing the fixing of a relatively thick plate, suitable for replace the role of the shim (8), or achieve this result in combination with a thinner shim.

    Les skis selon l'invention favorisent donc le pivotement par rapport à leur arête interne, diminuant la durée nécessaire à ce pivotement ou basculement, et partant, permettant d'optimiser la phase de prise d'impulsion, fondamentale lors de la progression selon la technique dite du pas du patineur.The skis according to the invention therefore favor pivoting relative to at their internal edge, reducing the time required for this pivoting or tilting, and hence, optimizing the setting phase impulse, fundamental during progression according to the so-called technique of the skater's step.

    Claims (10)

    1. Means for practicing cross-country skiing, more particularly using the "skating" technique, comprising at least two skis, each fitted with a binding making it possible to secure the front of the skier's boot to the ski, which means have, level with the thickest region of the skis and typically level with the support region (5), a thickness such that the ratio of the length L of the sole of the skis at this level to the distance D separating the gliding surface of the sole (4) of the skis from the base where the boot bears on the upper surface (7) of the ski or on the plate of the binding for securing said boot to the ski is between 0.6 and 1.2.
    2. The means for practicing cross-country skiing as claimed in claim 1, wherein the distance D separating the gliding surface of the sole (4) of the ski from the base where the boot bears on the upper surface (7) of the ski or on the plate of the binding for securing said boot to the ski is at least equal to 40 mm and at most equal to 60 mm.
    3. The means for practicing cross-country skiing as claimed in one of claims 1 and 2, wherein the skis comprise on their upper surface (7), level with the support region (5), an attached wedge (8) on which the binding allowing the front of the boot to be secured to the ski is fitted.
    4. The means for practicing cross-country skiing as claimed in claim 3, wherein, level with the support region (5), a layer of a viscoelastic element (9) is interposed between the attached wedge (8) and the upper surface (7) of the ski.
    5. The means for practicing cross-country skiing as claimed in one of claims 3 and 4, wherein the thickness e of the wedge (8) is between five and thirty mm, and advantageously close to ten mm.
    6. The means for practicing cross-country skiing as claimed in one of claims 3 to 5, wherein the wedge (8), fitted with the binding, is reversibly securable to the upper surface (7) of the ski.
    7. The means for practicing cross-country skiing as claimed in one of claims 3 to 6, wherein the wedge (8) is integrated level with the plate (15) of the binding allowing the front of the boot to be secured to the ski.
    8. The means for practicing cross-country skiing as claimed in claim 7, wherein the thickness of the plate (15) is between ten and thirty millimeters.
    9. The means for practicing cross-country skiing as claimed in one of claims 1 and 2, wherein the skis comprise a wedge (6) integrated with their internal structure, the upper surface (7) of the skis enclosing this protuberance.
    10. The means for practicing cross-country skiing as claimed in one of claims 3 to 6, wherein the wedge (6, 8) is higher level with the heel (10), that is to say level with the point where the skier's heel bears.
    EP96420222A 1995-07-13 1996-07-02 Means for practising cross-country skiing, using skating technique Expired - Lifetime EP0753330B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR9508776A FR2736556B1 (en) 1995-07-13 1995-07-13 MEANS TO PRACTICE CROSS-COUNTRY SKIING ACCORDING TO THE SKATE SKATING TECHNIQUE
    FR9508776 1995-07-13

    Publications (2)

    Publication Number Publication Date
    EP0753330A1 EP0753330A1 (en) 1997-01-15
    EP0753330B1 true EP0753330B1 (en) 1999-03-24

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    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP96420222A Expired - Lifetime EP0753330B1 (en) 1995-07-13 1996-07-02 Means for practising cross-country skiing, using skating technique

    Country Status (4)

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    EP (1) EP0753330B1 (en)
    AT (1) ATE177964T1 (en)
    DE (1) DE69601834T2 (en)
    FR (1) FR2736556B1 (en)

    Families Citing this family (3)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    FR2787723B1 (en) 1998-12-23 2001-01-26 Skis Dynastar SLIDING BOARD
    FR2929531B3 (en) 2008-04-08 2010-08-13 Salomon Sas ASSEMBLY COMPRISING A SLIDING BOARD AND A RETAINING DEVICE FOR A FOOTWEAR ARTICLE.
    FR2929530A1 (en) * 2008-04-08 2009-10-09 Salomon Sa Soc Par Actions Sim Sliding board and footwear retaining device assembly for practicing e.g. cross-country skiing, has wedge for inclining retaining device longitudinally with respect to board, so that level of device is reduced from front end towards rear end

    Family Cites Families (5)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    AT176165B (en) * 1950-07-19 1953-09-25 Rupert Etschmann Elastic wooden ski
    AT397209B (en) * 1990-09-27 1994-02-25 Rohrmoser Alois Skifabrik SKI WITH A SPATIAL PROFILED TOP
    EP0490044A1 (en) * 1990-12-14 1992-06-17 Salomon S.A. Winter-sport ski comprising stiffener and base
    FR2686520B1 (en) * 1992-01-28 1994-04-15 Salomon Sa SKI DEVELOPMENT INCLUDING A CENTRAL SURFACE PLATFORM.
    FR2718651B1 (en) * 1994-04-15 1996-06-14 Rossignol Sa Alpine skiing.

    Also Published As

    Publication number Publication date
    ATE177964T1 (en) 1999-04-15
    FR2736556A1 (en) 1997-01-17
    FR2736556B1 (en) 1997-08-14
    DE69601834D1 (en) 1999-04-29
    EP0753330A1 (en) 1997-01-15
    DE69601834T2 (en) 1999-08-12

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