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EP1264618B1 - Ski for alpinski - Google Patents

Ski for alpinski Download PDF

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Publication number
EP1264618B1
EP1264618B1 EP02011141A EP02011141A EP1264618B1 EP 1264618 B1 EP1264618 B1 EP 1264618B1 EP 02011141 A EP02011141 A EP 02011141A EP 02011141 A EP02011141 A EP 02011141A EP 1264618 B1 EP1264618 B1 EP 1264618B1
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EP
European Patent Office
Prior art keywords
ski
cutout
core
local
ski according
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
EP02011141A
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German (de)
French (fr)
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EP1264618A1 (en
Inventor
Christian Huyghe
Nicolas Puget
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.)
Salomon SAS
Original Assignee
Salomon SAS
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Publication date
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Publication of EP1264618A1 publication Critical patent/EP1264618A1/en
Application granted granted Critical
Publication of EP1264618B1 publication Critical patent/EP1264618B1/en
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Expired - Lifetime legal-status Critical Current

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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
    • A63C5/06—Skis or snowboards with special devices thereon, e.g. steering devices
    • A63C5/07—Skis or snowboards with special devices thereon, e.g. steering devices comprising means for adjusting stiffness

Definitions

  • the invention relates to a ski provided for the practice of alpine skiing.
  • each ski of a pair of skis is in the form of an elongate beam having, due to its structure, a rigidity defined in flexion and torsion.
  • patent application FR 2 049 841 teaches to reinforce the rigidity of the front and rear ski areas using strips embedded in the structure of the ski, which act as stiffening elements.
  • patent application FR 2 704 442 describes a ski whose three spatula, skate and heel areas that compose it have different characteristics.
  • the patent application WO 91/09653 discloses a ski whose two zones immediately in front and behind the shoe are raised and reinforced so as to produce a regular curvature of the ski in the presence of the shoe.
  • FR 2 599 636 discloses a ski comprising damping elements placed in the recesses of the core.
  • the reinforcements, lower and higher, are not affected by kernel changes.
  • the invention proposes another method of controlling the bending and twisting of the ski according to which two adjacent zones of the ski are cut in flexion and / or in torsion by locally modifying the structure of the ski at the common boundary of the ski. these two areas.
  • the general idea of the invention is based on a torsional and / or flexural decoupling of two adjacent zones of the ski, that is to say a local bending and / or torsional weakening in a deformation zone between two adjacent zones which themselves have rigidities in bending and / or torsion identical or almost identical on both sides of the deformation zone.
  • the ski according to the invention is an elongate beam comprising a central zone and two ends forming the spatula and the heel, the beam having on the one hand a structure comprising a core and upper and lower reinforcement layers, and on the other hand determined sectional dimensions which give it a bending and torsion distribution determined over its length.
  • the ski is characterized in that at least one of the elements of its structure has at least one local notch which creates a local zone of deformation between the ski zones located upstream and downstream of the notch.
  • FIGS 1 and 2 relate to a first embodiment of the invention.
  • the ski 1 which is shown is formed by an elongated beam having a central zone 2 and two ends 3 and 4 forming the spatula and the heel of the ski.
  • the spatula is bent upwards and rounded.
  • the heel is cut, but it is not limiting, it could also be bent and / or rounded.
  • the central zone 2 is provided to receive the retaining elements of the shoe.
  • Seen from the side the ski is arched, which defines to each of its ends of the contact lines marked 7 and 8. These lines are the contact areas of the sole 9 of the ski at rest with a flat surface.
  • the other characteristic dimensions of the ski are its length in development which is of the order of 1.50 meters to 2 meters, these values being only indicative, the length between lines of contact, the maximum widths in spatula and the heel , the minimum width in the central zone as well as the dimension line, that is to say the curve followed by the edges. Thickness is also a characteristic dimension. It can vary on the length and the width of the beam of the ski.
  • the general structure of the ski 1 is of a traditional type.
  • Figure 3 schematically shows such a structure. It is formed by two lateral edges 10, 11, a lower sole layer 12, lower reinforcement layers 13, 14, a core 15, upper reinforcing layers 16, 17, and an outer decorative layer 18.
  • the layers reinforcement are resin-impregnated fiber layers and / or aluminum strips.
  • the core is in wood or foam injected or machined.
  • the structure of the ski is not limiting, other modes of construction are also suitable. In particular there could be only one layer of reinforcement on the top and the bottom of the core.
  • the structure of the ski gives the ski rigidity characteristics in flexion and torsion which determine the skiing behavior of the ski and its reaction to the requests from the skier or the terrain.
  • the invention provides for creating locally on the length of the ski at least one elastic deformation zone so as to uncouple in flexion and / or torsion the ski areas located upstream and downstream of this deformation zone.
  • This deformation zone creates a sudden break in the bending and / or torsion distribution along the beam of the ski.
  • the structure of the ski has been modified in two zones marked at 20, 21 so as to create a zone 22 of local deformation which functions in the manner of an elastically deformable hinge between the two.
  • zones 23 and 24 located upstream and downstream.
  • the zones 23 and 24 upstream and downstream of the zone 22 retain their own rigidity in flexion and torsion, these rigidities are very close to one another or at least in the continuity of one another given the local nature of the deformation zone 22.
  • Figure 5 illustrates one of them.
  • the core 15 is for example a machined wood core, in which two lateral notches 27 and 28 have been made over the entire thickness of the core.
  • the wall defining the notch is curved in its different planes, that is to say, it is avoided to cut the notches with right angles.
  • Other shapes could also be suitable, in particular a triangular, elliptical or other shape.
  • the ski has two recesses 20 and 21 at the notches. At these recesses the upper and lower reinforcement layers are closer to one another, which significantly decreases torsional and flexural stiffness.
  • each of the cuts is made over a length of the core varying between 20 and 150 millimeters, preferably 100 millimeters, and a width greater than 6 millimeters and less than half the width of the core in this zone minus 5 millimeters, so as to leave at the center a width of at least 10 millimeters where the nucleus retains its initial thickness.
  • the recesses 20 and 21 of the ski have substantially the same shape and the same dimensions as the notches, the thickness near the upper layers.
  • the minimum thickness in the bottom of the recesses is substantially equal to the height of the edges plus the thickness of the upper layers covering the core.
  • connection surfaces which can extend over a greater or lesser extent.
  • the notches could be made on only part of its thickness.
  • the cuts should have a depth of at least half the thickness of the core in this area.
  • Such a core 15 ' is shown in section in Figure 6 thus giving rise to two recesses 33 and 34 of depth close to half the height of the ski.
  • FIG. 7 Another embodiment of the local deformation zone is illustrated in FIG. 7. This figure represents one of the upper reinforcement layers.
  • This layer 36 is for example the aluminum strip in the case of multiple reinforcement layers.
  • the strip 36 is cut in notches 38, 39. These cuts extend on the same dimensions in length and width of the ski as those given for the cuts 27 and 28 above.
  • the notches also extend in these areas.
  • FIG. 8 similarly shows a lower layer strip 40 which is of the same nature as the strip 36, and which as it is provided with notches 41 and 42.
  • the internal volume of the cuts can be filled if necessary with a filling material.
  • the local deformation zone can be located in different regions of the ski. Preferred areas are the front and back of the area where the restraints are assembled, and the proximity of the front and rear contact lines. There may be several zones of deformation distributed on the front and / or back of the ski, or even a succession of deformation zones in one or more regions of the ski.
  • the spatula and / or the heel are more free to rise relative to this local area of deformation.
  • FIG. 9 relates to an alternative embodiment of the invention according to which the local zone of deformation is formed by a single notch 45 of one of the structural elements of the ski, this notch being situated along a side edge of the ski.
  • the notch extends over a ski width which is doubled with respect to the elementary notches previously described.
  • the structure of the ski has two notches 48, 49, each along a side edge of the ski.
  • the peculiarity is that these cuts are offset in the longitudinal direction which gives a local deformation zone oriented obliquely with respect to a transverse direction.
  • the other ski of a pair of skis would have an inverted offset so that the two skis are symmetrical to each other.
  • Figure 11 relates to another embodiment of the invention.
  • the notch 50 is centered on the longitudinal axis of the ski. Its dimensions in length, width and depth are of the same order of magnitude as those of two elementary cuts placed side by side. Such a notch favors deformation of this zone in torsion.

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  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)

Abstract

The ski for alpine skiing has a central area (2) and two ends (3,4). It has a core and upper and lower reinforcing layers forming a variable cross section to control torsion and flexing of the ski. The ski has at least one localized cut out (20,21) which creates a localized deformation zone between the areas of the ski (23,24) up and downstream of the cut outs.

Description

L'invention concerne un ski prévu pour la pratique du ski alpin.The invention relates to a ski provided for the practice of alpine skiing.

De façon connue, chaque ski d'une paire de skis se présente comme une poutre allongée ayant du fait de sa structure une rigidité définie en flexion et en torsion.In known manner, each ski of a pair of skis is in the form of an elongate beam having, due to its structure, a rigidity defined in flexion and torsion.

De façon à mieux maîtriser la répartition de pression du ski sur la neige, il est connu de faire varier la rigidité en flexion et/ou en torsion du ski le long du ski. Ainsi, la demande de brevet FR 2 049 841 enseigne de renforcer la rigidité des zones avant et arrière du ski à l'aide de bandes intégrées dans la structure du ski, qui agissent comme des éléments de raidissement. Dans le même esprit, la demande de brevet FR 2 704 442 décrit un ski dont les trois zones de spatule, de patin et de talon qui le composent ont des caractéristiques différentes.In order to better control the distribution of pressure of the ski on the snow, it is known to vary the stiffness in flexion and / or torsion of the ski along the ski. Thus, the patent application FR 2 049 841 teaches to reinforce the rigidity of the front and rear ski areas using strips embedded in the structure of the ski, which act as stiffening elements. In the same spirit, patent application FR 2 704 442 describes a ski whose three spatula, skate and heel areas that compose it have different characteristics.

La demande de brevet WO 91/09653 divulgue quant à elle un ski dont les deux zones immédiatement en avant et en arrière de la chaussure sont rehaussées et renforcées de façon à produire une courbure régulière du ski en présence de la chaussure.The patent application WO 91/09653 discloses a ski whose two zones immediately in front and behind the shoe are raised and reinforced so as to produce a regular curvature of the ski in the presence of the shoe.

La demande de brevet WO 99/43397 décrit quant à elle un ski court dont la rigidité en torsion et en flexion est contrôlée géométriquement par un renfort de largeur variable s'étendant dans les zones avant et arrière du ski.The patent application WO 99/43397 describes for its part a short ski whose torsional and flexural rigidity is controlled geometrically by a reinforcement of variable width extending in the front and rear zones of the ski.

Le document FR 2 599 636 divulgue un ski comprenant des éléments d'amortissement placés dans les évidements du noyau. Cependant les renforts, inférieur et supérieur, ne sont pas affectés par les modifications du noyau.FR 2 599 636 discloses a ski comprising damping elements placed in the recesses of the core. However, the reinforcements, lower and higher, are not affected by kernel changes.

De telles constructions montrent que l'on peut maîtriser la raideur en torsion et en flexion d'un ski dans ses différentes zones.Such constructions show that it is possible to control the torsional and flexural stiffness of a ski in its different zones.

Face à cela, l'invention propose un autre mode de contrôle de la flexion et de la torsion du ski selon lequel on découple en flexion et/ou en torsion deux zones adjacentes du ski en modifiant localement la structure du ski à la frontière commune de ces deux zones.In view of this, the invention proposes another method of controlling the bending and twisting of the ski according to which two adjacent zones of the ski are cut in flexion and / or in torsion by locally modifying the structure of the ski at the common boundary of the ski. these two areas.

L'idée générale de l'invention repose sur un découplage en torsion et / ou en flexion de deux zones adjacentes du ski, c'est-à-dire un affaiblissement local en flexion et / ou en torsion dans une zone de déformation entre deux zones adjacentes qui ont elles-mêmes des rigidités en flexion et / ou en torsion identiques ou quasiment identiques de part et d'autre de la zone de déformation.The general idea of the invention is based on a torsional and / or flexural decoupling of two adjacent zones of the ski, that is to say a local bending and / or torsional weakening in a deformation zone between two adjacent zones which themselves have rigidities in bending and / or torsion identical or almost identical on both sides of the deformation zone.

Le problème de l'invention est résolu par la fourniture d'un ski selon la revendication 1.The problem of the invention is solved by the provision of a ski according to claim 1.

Ainsi le ski selon l'invention se présente comme une poutre allongée comprenant une zone centrale et deux extrémités formant la spatule et le talon, la poutre ayant d'une part une structure comprenant un noyau et des couches de renfort supérieures et inférieures, et d'autres part des dimensions en section déterminées qui lui confèrent une répartition de flexion et de torsion déterminée sur sa longueur.Thus the ski according to the invention is an elongate beam comprising a central zone and two ends forming the spatula and the heel, the beam having on the one hand a structure comprising a core and upper and lower reinforcement layers, and on the other hand determined sectional dimensions which give it a bending and torsion distribution determined over its length.

Le ski est caractérisé par le fait que l'un au moins des éléments de sa structure présente au moins une entaille locale qui crée une zone locale de déformation entre les zones du ski situées en amont et en aval de l'entaille.The ski is characterized in that at least one of the elements of its structure has at least one local notch which creates a local zone of deformation between the ski zones located upstream and downstream of the notch.

L'invention sera mieux comprise en se référant à la description ci-dessous et aux dessins en annexe qui lui sont rattachés.

  • La figure 1 représente un ski selon l'invention vu de dessus.
  • La figure 2 est une vue de côté du ski de la figure 1.
  • La figure 3 est une vue en section qui illustre la structure générale du ski.
  • La figure 4 est une vue en section du ski au niveau de la zone locale de déformation.
  • La figure 5 représente en vue de dessus le noyau du ski et illustre un premier mode de mise en oeuvre de l'invention.
  • La figure 6 est relative à une variante de réalisation.
  • La figure 7 montre un autre mode de mise en oeuvre de l'invention relatif à une couche de renfort supérieure.
  • La figure 8 illustre de la même façon l'invention appliquée à une couche de renfort inférieure.
  • La figure 9 représente en vue de dessus un ski selon une variante de mise en oeuvre de l'invention.
  • Les figures 10 et 11 sont relatives à d'autres variantes de mise en oeuvre de l'invention.
The invention will be better understood by reference to the description below and attached drawings attached thereto.
  • Figure 1 shows a ski according to the invention seen from above.
  • FIG. 2 is a side view of the ski of FIG.
  • Figure 3 is a sectional view which illustrates the general structure of the ski.
  • Figure 4 is a sectional view of the ski at the local deformation zone.
  • FIG. 5 represents a view from above of the ski core and illustrates a first embodiment of the invention.
  • Figure 6 relates to an alternative embodiment.
  • Figure 7 shows another embodiment of the invention relating to a top reinforcing layer.
  • Figure 8 similarly illustrates the invention applied to a lower reinforcing layer.
  • Figure 9 shows a top view of a ski according to an alternative embodiment of the invention.
  • Figures 10 and 11 relate to other embodiments of the invention.

Les figures 1 et 2 sont relatives à un premier mode de mise en oeuvre de l'invention. Le ski 1 qui y est représenté est formé par une poutre allongée ayant une zone centrale 2 et deux extrémités 3 et 4 formant la spatule et le talon du ski. Comme cela est usuel, la spatule est recourbée vers le haut et arrondie. Le talon est coupé, mais ce n'est pas limitatif, il pourrait également être recourbé et/ou arrondi. De façon connue, la zone centrale 2 est prévue pour recevoir les éléments de retenue de la chaussure.Figures 1 and 2 relate to a first embodiment of the invention. The ski 1 which is shown is formed by an elongated beam having a central zone 2 and two ends 3 and 4 forming the spatula and the heel of the ski. As is usual, the spatula is bent upwards and rounded. The heel is cut, but it is not limiting, it could also be bent and / or rounded. In known manner, the central zone 2 is provided to receive the retaining elements of the shoe.

Vu de côté le ski est cambré, ce qui définit vers chacune de ses extrémités des lignes de contact repérées en 7 et 8. Ces lignes sont les zones de contact de la semelle 9 du ski au repos avec une surface plane.Seen from the side the ski is arched, which defines to each of its ends of the contact lines marked 7 and 8. These lines are the contact areas of the sole 9 of the ski at rest with a flat surface.

Les autres dimensions caractéristiques du ski sont sa longueur en développé qui est de l'ordre de 1,50 mètres à 2 mètres, ces valeurs n'étant qu'indicatives, la longueur entre lignes de contact, les largeurs maximales en spatule et au talon, la largeur minimale dans la zone centrale ainsi que la ligne de cotes, c'est-à-dire la courbe suivie par les carres. L'épaisseur est aussi une dimension caractéristique. Elle peut varier sur la longueur et la largeur de la poutre du ski.The other characteristic dimensions of the ski are its length in development which is of the order of 1.50 meters to 2 meters, these values being only indicative, the length between lines of contact, the maximum widths in spatula and the heel , the minimum width in the central zone as well as the dimension line, that is to say the curve followed by the edges. Thickness is also a characteristic dimension. It can vary on the length and the width of the beam of the ski.

La structure générale du ski 1 est d'un type traditionnel. La figure 3 représente de façon schématique une telle structure. Elle est formée par deux carres latérales 10, 11, une couche de semelle inférieure 12, des couches de renfort inférieures 13, 14, un noyau 15, des couches de renfort supérieures 16, 17, et une couche de décor externe 18. Les couches de renfort sont des couches de fibres imprégnées de résine et/ou des bandes d'aluminium. Le noyau est en bois ou en mousse injectée ou usinée. La structure du ski n'est pas limitative, d'autres modes de construction conviennent également. Notamment il ne pourrait y avoir qu'une seule couche de renfort sur le dessus et le dessous du noyau.The general structure of the ski 1 is of a traditional type. Figure 3 schematically shows such a structure. It is formed by two lateral edges 10, 11, a lower sole layer 12, lower reinforcement layers 13, 14, a core 15, upper reinforcing layers 16, 17, and an outer decorative layer 18. The layers reinforcement are resin-impregnated fiber layers and / or aluminum strips. The core is in wood or foam injected or machined. The structure of the ski is not limiting, other modes of construction are also suitable. In particular there could be only one layer of reinforcement on the top and the bottom of the core.

La structure du ski confère au ski des caractéristiques de rigidité en flexion et torsion qui déterminent le comportement en glisse du ski et sa réaction aux sollicitations en provenance du skieur ou du terrain.The structure of the ski gives the ski rigidity characteristics in flexion and torsion which determine the skiing behavior of the ski and its reaction to the requests from the skier or the terrain.

On a l'habitude de faire varier la rigidité en flexion ou en torsion du ski le long de sa longueur. Ainsi, usuellement la zone centrale est plus rigide que les zones d'extrémité. Cette variation est en général progressive de façon à favoriser une flexion régulière de la poutre du ski.It is customary to vary the stiffness in flexion or torsion of the ski along its length. Thus, usually the central zone is more rigid than the end zones. This variation is generally progressive so as to promote a regular bending of the beam of the ski.

En plus de cette répartition variable de flexion et de torsion le long du ski, l'invention prévoit de créer localement sur la longueur du ski au moins une zone de déformation élastique de façon à découpler en flexion et/ou en torsion les zones du ski situées en amont et en aval de cette zone de déformation. Cette zone de déformation crée une rupture brutale dans la répartition de flexion et/ou de torsion le long de la poutre du ski.In addition to this variable distribution of flexion and torsion along the ski, the invention provides for creating locally on the length of the ski at least one elastic deformation zone so as to uncouple in flexion and / or torsion the ski areas located upstream and downstream of this deformation zone. This deformation zone creates a sudden break in the bending and / or torsion distribution along the beam of the ski.

Ainsi selon le mode de réalisation illustré en figure 1, la structure du ski a été modifiée dans deux zones repérées en 20, 21 de façon à créer une zone 22 de déformation locale qui fonctionne à la manière d'une charnière élastiquement déformable entre les deux zones 23 et 24 situées en amont et en aval. Les zones 23 et 24 en amont et en aval de la zone 22 conservent leur propre rigidité en flexion et en torsion, ces rigidités sont très voisines l'une de l'autre ou tout au moins dans la continuité l'une de l'autre compte tenu du caractère local de la zone de déformation 22.Thus, according to the embodiment illustrated in FIG. 1, the structure of the ski has been modified in two zones marked at 20, 21 so as to create a zone 22 of local deformation which functions in the manner of an elastically deformable hinge between the two. zones 23 and 24 located upstream and downstream. The zones 23 and 24 upstream and downstream of the zone 22 retain their own rigidity in flexion and torsion, these rigidities are very close to one another or at least in the continuity of one another given the local nature of the deformation zone 22.

Différents modes de constructions peuvent être adoptés pour réaliser là zone locale de déformation 22.Different modes of construction can be adopted to achieve the local area of deformation 22.

La figure 5 illustre l'un d'entre eux. Elle représente le noyau 15, qui est par exemple un noyau bois usiné, dans lequel deux entailles latérales 27 et 28 ont été réalisées sur toute l'épaisseur du noyau. De préférence la paroi qui délimite l'entaille est incurvée dans ses différents plans, c'est-à-dire qu'on évite de tailler les entailles avec des angles droits. D'autres formes pourraient aussi convenir, notamment une forme triangulaire, elliptique ou autre.Figure 5 illustrates one of them. It represents the core 15, which is for example a machined wood core, in which two lateral notches 27 and 28 have been made over the entire thickness of the core. Preferably the wall defining the notch is curved in its different planes, that is to say, it is avoided to cut the notches with right angles. Other shapes could also be suitable, in particular a triangular, elliptical or other shape.

Une fois le noyau recouvert de ses couches de renfort, le ski présente deux évidements 20 et 21 au niveau des entailles. Au niveau de ces évidements les couches de renfort supérieures et inférieures sont plus proches l'une de l'autre, ce qui diminue significativement la rigidité en torsion et en flexion.Once the core covered with its reinforcing layers, the ski has two recesses 20 and 21 at the notches. At these recesses the upper and lower reinforcement layers are closer to one another, which significantly decreases torsional and flexural stiffness.

Egalement, on a déterminé que de préférence, chacune des entailles est réalisée sur une longueur du noyau variant entre 20 et 150 millimètres, de préférence 100 millimètres, et une largeur supérieure à 6 millimètres et inférieure à la moitié de la largeur du noyau dans cette zone moins 5 millimètres, de façon à laisser au centre une largeur d'au moins 10 millimètres où le noyau garde son épaisseur initiale.Also, it has been determined that preferably each of the cuts is made over a length of the core varying between 20 and 150 millimeters, preferably 100 millimeters, and a width greater than 6 millimeters and less than half the width of the core in this zone minus 5 millimeters, so as to leave at the center a width of at least 10 millimeters where the nucleus retains its initial thickness.

Les évidements 20 et 21 du ski présentent sensiblement la même forme et les mêmes dimensions que les entailles, à l'épaisseur près des couches supérieures.The recesses 20 and 21 of the ski have substantially the same shape and the same dimensions as the notches, the thickness near the upper layers.

En particulier, l'épaisseur minimale dans le fond des évidements est sensiblement égale à la hauteur des carres additionnée de l'épaisseur des couches supérieures recouvrant le noyau.In particular, the minimum thickness in the bottom of the recesses is substantially equal to the height of the edges plus the thickness of the upper layers covering the core.

Les évidements sont reliés au reste de la structure du ski par des surfaces de raccordement qui peuvent s'étendre sur une étendue plus ou moins grande.The recesses are connected to the rest of the ski structure by connection surfaces which can extend over a greater or lesser extent.

En variante, au lieu d'être réalisées sur toute l'épaisseur du noyau, les entailles pourraient être faites sur une partie seulement de son épaisseur. Toutefois on a déterminé que les entailles devaient avoir une profondeur au moins égale à la moitié de l'épaisseur du noyau dans cette zone. Un tel noyau 15' est représenté en section dans la figure 6 donnant ainsi naissance à deux évidements 33 et 34 de profondeur voisine de la moitié de la hauteur du ski.Alternatively, instead of being made over the entire thickness of the core, the notches could be made on only part of its thickness. However, it was determined that the cuts should have a depth of at least half the thickness of the core in this area. Such a core 15 'is shown in section in Figure 6 thus giving rise to two recesses 33 and 34 of depth close to half the height of the ski.

Un autre mode de réalisation de la zone locale de déformation est illustré dans la figure 7. Cette figure représente l'une des couches de renfort supérieur. Cette couche 36 est par exemple la bande d'aluminium dans le cas de couches de renfort multiples.Another embodiment of the local deformation zone is illustrated in FIG. 7. This figure represents one of the upper reinforcement layers. This layer 36 is for example the aluminum strip in the case of multiple reinforcement layers.

Latéralement, la bande 36 est découpée selon des entailles 38, 39. Ces entailles s'étendent sur les mêmes dimensions en longueur et en largeur du ski que celles données pour les entailles 27 et 28 précédentes.Laterally, the strip 36 is cut in notches 38, 39. These cuts extend on the same dimensions in length and width of the ski as those given for the cuts 27 and 28 above.

Si la couche de renfort 36 descend le long des flancs du ski, les entailles s'étendent également dans ces zones.If the reinforcing layer 36 descends along the sides of the ski, the notches also extend in these areas.

La figure 8 représente de la même façon une bande 40 de couche inférieure qui est de même nature que la bande 36, et qui comme elle est pourvue d'entailles 41 et 42.FIG. 8 similarly shows a lower layer strip 40 which is of the same nature as the strip 36, and which as it is provided with notches 41 and 42.

Pour cette couche inférieure, le volume intérieur des entailles peut être comblé si nécessaire avec un matériau de remplissage.For this lower layer, the internal volume of the cuts can be filled if necessary with a filling material.

Ces différents modes de construction relatifs au noyau, et aux couches de renfort inférieur ou supérieur peuvent être utilisés seuls ou en combinaison. De plus on pourrait adopter des modes de construction différents pour chacun des côtés du ski.These different modes of construction relating to the core, and the lower or upper reinforcement layers can be used alone or in combination. In addition we could adopt different construction methods for each side of the ski.

La zone locale de déformation peut être localisée en différentes régions du ski. Des régions privilégiées sont l'avant et l'arrière de la zone où sont assemblés les éléments de retenue, et la proximité des lignes de contact avant et arrière. On peut avoir plusieurs zones de déformation réparties sur l'avant et/ou l'arrière du ski, ou même une succession de zones de déformation dans une ou plusieurs régions du ski.The local deformation zone can be located in different regions of the ski. Preferred areas are the front and back of the area where the restraints are assembled, and the proximity of the front and rear contact lines. There may be several zones of deformation distributed on the front and / or back of the ski, or even a succession of deformation zones in one or more regions of the ski.

Ainsi, sur l'avant et /ou sur l'arrière, la spatule et/ou le talon sont plus libres de se relever par rapport à cette zone locale de déformation.Thus, on the front and / or rear, the spatula and / or the heel are more free to rise relative to this local area of deformation.

La figure 9 est relative à une variante de mise en oeuvre de l'invention selon laquelle la zone locale de déformation est formée par une seule entaille 45 de l'un des éléments de structure du ski, cette entaille étant située le long d'un bord latéral du ski. Dans ce cas, l'entaille s'étend sur une largeur du ski qui est doublée par rapport aux entailles élémentaires précédemment décrites.FIG. 9 relates to an alternative embodiment of the invention according to which the local zone of deformation is formed by a single notch 45 of one of the structural elements of the ski, this notch being situated along a side edge of the ski. In this case, the notch extends over a ski width which is doubled with respect to the elementary notches previously described.

Selon la figure 10, la structure du ski présente deux entailles 48, 49, chacune le long d'un bord latéral du ski. La particularité est que ces entailles sont décalées selon la direction longitudinale ce qui donne une zone locale de déformation orientée en oblique par rapport à une direction transversale. Dans ce cas l'autre ski d'une paire de ski aurait un décalage inversé pour que les deux skis soient symétriques l'un de l'autre.According to Figure 10, the structure of the ski has two notches 48, 49, each along a side edge of the ski. The peculiarity is that these cuts are offset in the longitudinal direction which gives a local deformation zone oriented obliquely with respect to a transverse direction. In this case the other ski of a pair of skis would have an inverted offset so that the two skis are symmetrical to each other.

La figure 11 est relative à un autre mode de mise en oeuvre de l'invention. Au lieu d'être située le long d'un bord latéral du ski, l'entaille 50 est centrée sur l'axe longitudinal du ski. Ses dimensions en longueur, largeur et profondeur sont du même ordre de grandeur que celles de deux entailles élémentaires mises côte à côte. Une telle entaille favorise plutôt une déformation de cette zone en torsion.Figure 11 relates to another embodiment of the invention. Instead of being located along a side edge of the ski, the notch 50 is centered on the longitudinal axis of the ski. Its dimensions in length, width and depth are of the same order of magnitude as those of two elementary cuts placed side by side. Such a notch favors deformation of this zone in torsion.

Naturellement la présente description n'est donnée qu'à titre indicatif, et l'on pourrait adopter d'autres mises en oeuvre de l'invention sans pour autant sortir du cadre de celle-ci.Naturally the present description is given only as an indication, and one could adopt other implementations of the invention without departing from the scope thereof.

Claims (10)

  1. Ski in the form of an elongated beam comprising a central zone (2) and two ends (3, 4) forming the shovel and the tail, the beam having a structure comprising a core (15, 15') and upper and lower reinforcing layers (12, 13, 14, 16, 17, 36, 40), on the one hand, and predetermined cross-sectional dimensions, which give it a predetermined distribution of flexing and torsion over its length, on the other hand, wherein at least one of the elements of its structure (15, 15', 12, 13, 14, 16, 17, 36, 40) has at least one local cutout (27, 28, 38, 39, 41, 42), characterized in that the local cutout affects the structure of at least one of the reinforcement layers (12, 13, 14, 16, 17, 36, 40), and creates a local deformation zone (22) between the zones of the ski (23, 24) located upstream and downstream said cutout.
  2. Ski according to claim 1, characterized in that each local cutout (27, 28, 38, 39, 41, 42) extends over a length of the ski comprised between 20 and 150 millimeters.
  3. Ski according to claim 2, characterized in that each local cutout (27, 28, 38, 39, 41, 42) extends over a width of the ski greater than 6 millimeters and smaller than half of the width of the ski minus 5 millimeters.
  4. Ski according to claim 3, characterized in that the core (15, 15') has at least one cutout (27, 28).
  5. Ski according to claim 4, characterized in that the cutout (27, 28) extends over at least half of the width of the core.
  6. Ski according to claim 4, characterized in that the cutout extends through the entire width of the core.
  7. Ski according to claim 3, characterized in that the cutout (27, 28, 38, 39, 41, 42) has an incurved shape.
  8. Ski according to claim 3, characterized in that the cutout has a triangular or elliptical shape.
  9. Ski according to claim 3, characterized in that the cutout it comprises at least two cutouts, one along each edge, the cutouts being offset with respect to a longitudinal direction of the ski.
  10. Ski according to claim 1, characterized in that the cutout (50) is centered on the longitudinal axis of the ski.
EP02011141A 2001-06-08 2002-05-21 Ski for alpinski Expired - Lifetime EP1264618B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0107753 2001-06-08
FR0107753A FR2825646B1 (en) 2001-06-08 2001-06-08 SKI PLANNED FOR THE PRACTICE OF ALPINE SKIING

Publications (2)

Publication Number Publication Date
EP1264618A1 EP1264618A1 (en) 2002-12-11
EP1264618B1 true EP1264618B1 (en) 2006-05-10

Family

ID=8864279

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02011141A Expired - Lifetime EP1264618B1 (en) 2001-06-08 2002-05-21 Ski for alpinski

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EP (1) EP1264618B1 (en)
AT (1) ATE325640T1 (en)
DE (1) DE60211249T2 (en)
FR (1) FR2825646B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2850292B1 (en) * 2003-01-27 2006-09-01 Salomon Sa SLIDING OR ROLLING BOARD
FR2916361B1 (en) 2007-05-25 2012-08-31 Rossignol Sa ALPINE SKI BOARD
FR2939323B1 (en) * 2008-12-08 2011-03-25 Salomon Sas ALPINE SKI WITH CONTROLLED FLEXION

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT310052B (en) 1969-06-06 1973-09-10 Louis Beerli ski
AT387724B (en) * 1986-05-27 1989-03-10 Rohrmoser Alois Skifabrik SKI
AT398380B (en) 1989-12-22 1994-11-25 Kaestle Ag SKI, ESPECIALLY ALPINSKI, AND METHOD FOR THE PRODUCTION THEREOF
FR2702386B1 (en) * 1993-03-11 1995-04-28 Rossignol Sa Ski equipped with interactive means for modifying its stiffness.
FR2704442B1 (en) 1993-04-27 1995-06-02 Rossignol Sa New type of ski.
US6059307A (en) * 1997-10-28 2000-05-09 Western; Michael W. Skateboard deck and method for making the same
RU2131000C1 (en) 1998-02-25 1999-05-27 Алексеев Вячеслав Викторович Installation for fresh water condensation from atmospheric air

Also Published As

Publication number Publication date
ATE325640T1 (en) 2006-06-15
DE60211249D1 (en) 2006-06-14
FR2825646A1 (en) 2002-12-13
DE60211249T2 (en) 2007-03-08
FR2825646B1 (en) 2003-10-17
EP1264618A1 (en) 2002-12-11

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