EP0546309A1 - Upper ski surface with variable width - Google Patents

Upper ski surface with variable width Download PDF

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Publication number
EP0546309A1
EP0546309A1 EP92118714A EP92118714A EP0546309A1 EP 0546309 A1 EP0546309 A1 EP 0546309A1 EP 92118714 A EP92118714 A EP 92118714A EP 92118714 A EP92118714 A EP 92118714A EP 0546309 A1 EP0546309 A1 EP 0546309A1
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EP
European Patent Office
Prior art keywords
ski
width
central part
edges
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.)
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EP92118714A
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German (de)
French (fr)
Inventor
Jacques Lacroix
Hervé Andrevon
Dominique Deville
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Salomon SAS
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Salomon SAS
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Publication of EP0546309A1 publication Critical patent/EP0546309A1/en
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    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63CSKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00Skis or snowboards
    • A63C5/04Structure of the surface thereof
    • AHUMAN NECESSITIES
    • A63SPORTS; GAMES; AMUSEMENTS
    • A63CSKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00Skis or snowboards
    • A63C5/04Structure of the surface thereof
    • A63C5/048Structure of the surface thereof of the edges

Definitions

  • the present invention relates to an alpine ski, a cross-country ski, a monoski or a snow south. It relates more particularly to an improvement in this type of skiing.
  • the skis used in particular in the practice of alpine skiing consist of an elongated beam ending at the front by a spatula, and at the rear, by a heel.
  • the thickness of the ski is generally greater in the central part and gradually decreases towards the ends so that the ski somehow forms a beam with a particular flexion.
  • the structure generally comprises peripheral protective elements, internal resistance elements to resist the bending and torsional stresses, and a core, as well as sliding and latching elements. These elements are assembled by gluing or by injection, the assembly generally being carried out hot in a mold having the final shape of the ski, with a front part strongly raised in tip, a rear part slightly raised in heel, a central arched part. .
  • the dimensional and structural characteristics of the ski determine the skiability characteristics of the ski, its dimension line making it possible to make the ski evolve when cornering by promoting its holding in a curve, and its thickness line making it possible to obtain the good bending adjustments.
  • the torsion is adjusted using the edge line.
  • the French Patent No. 2,522,978 teaches the use of a ski whose lateral faces are inclined steadily or variable, in order to reduce the side friction when performing turns.
  • the inclination is variable in particular to adapt to variations in width of the upper surface of the ski in the direction of a curvilinear narrowing in the surroundings of the central area.
  • the width can, as shown in Figure 1 of this document, be constant in order to create a platform capable of receiving the fasteners.
  • This form of ski is complicated to manufacture, due to the fact that the upper edges are curvilinear over a large part of the length of the ski.
  • the present invention relates on the one hand to improvements made to these skis in order to facilitate their manufacture, and on the other hand, makes it possible to obtain the desired skiability, comfort and resistance characteristics.
  • the ski according to the invention has the form of an elongated beam comprising a lower sliding face limited laterally by two lower edges, an upper face limited laterally by two upper edges and two lateral faces, is made up of a central part. extended at the front by a front part terminated at its front end by the spatula and extended at the rear by a rear part terminated at its rear end by the heel, said front part consisting of a front portion connected to the part central by an intermediate front connecting portion, while said rear part is constituted by a rear portion connected to the central part by an intermediate rear connecting portion, the two upper edges of the upper surface being parallel in the central part, while one of the two front or rear portions is such that in this area, on the one hand, the fa these sides are inclined to converge upwards, and on the other hand, the upper surface is narrower than in the central part and has a constant width.
  • the ski has portions of constant width or whose upper edges are parallel, in particular aims to facilitate the manufacture of the ski and in particular the cutting and the establishment of an additional additional reinforcement, as well as to improve the resistance of the upper edges in these portions.
  • the fact that at least one of the two front or rear portions has an upper surface with a width less than that of the central part allows, while retaining the aforementioned advantages, on the one hand of having a sufficient space, intended for the location of the bindings, on the other hand, of having a ski whose torsion and flexion values are more modular, depending on the position longitudinal considered, compared to those of skis already known.
  • the front portion is such that its upper surface is narrower than in the central part and is limited by the two lateral edges which are parallel.
  • the rear portion is such that its upper surface is narrower than in the central part and is limited by the two lateral edges which are parallel.
  • the width of the upper surface of the front portion is equal to the width of the upper surface of the rear portion while in another arrangement, the width of the upper surface of the front portion is different from the width of the upper surface of the rear portion.
  • the lateral faces are also inclined in the central part of the ski, to converge upwards symmetrically with respect to the median longitudinal axis of the ski.
  • the angle of inclination of the lateral faces varies continuously so that said angle of inclination decreases progressively from the center towards the ends.
  • the invention makes it possible to optimize the torsional stiffness without modifying the thickness of the ski or the dimension line. Indeed, by modifying the width of the top of the ski, it is possible to obtain the desired characteristics of the torsional behavior of the latter.
  • the ski (1) has the form of an elongated beam (2) comprising a lower sliding surface (3) limited laterally by two lower edges (4, 5); it comprises inter alia, an upper surface (6) bounded laterally by two upper edges (7, 8), and two lateral faces (9, 10) connecting the lower edges (4, 5) to said upper edges (7, 8).
  • the body of the ski proper extends between a front contact line (11) and a rear contact line (12) to extend forwards by a raised front part (13), forming the tip (14) and backwards, by a shorter and less raised posterior part (15) forming the heel (16).
  • the ski body (170) considered between the two front (11) and rear (12) contact lines is, in a manner known per se, slightly arched in the rest position without load and has its own thickness distribution.
  • the thickness (e) is maximum in the central zone to decrease, for example gradually towards the front (AV) and towards the rear (AR).
  • the ski according to the invention comprises a central part (17) extended forwards by a front part (18) extending from the front end (19) of the central part (17) to the front contact line ( 11), and a rear part (20) extending from the rear end (21) of the central part (17) to the rear contact line (12).
  • the central part (17) of the ski corresponds to the central area for mounting the bindings and extends for example over a length (LC) which can be between 400 and 700 millimeters, and for example be 60 centimeters.
  • the upper surface of the ski (6) in the central part (17) has a constant width (lc).
  • the upper surface (6) of the central part (7) is laterally limited by two lateral edges (7c, 8c) rectilinear and parallel, constituted by two segments respectively (AB) and (CD) rectilinear and parallel distant one of the other by a constant distance (lc).
  • the rear portion consists of two separate portions (22, 24), a first intermediate portion (24) connecting to the central portion (17), and a rear portion (22), such as in this one here, the surfa this upper of the ski (6) has on the one hand a width (Ir) less than the width (Ic) of the central part, and on the other hand, is limited laterally by two lateral edges (7r) and (8r) s 'extending in a straight line and parallel to each other.
  • said width (Ir) is constant over the second rear portion (22) of the rear part (20) of the ski.
  • Said second rear portion extending forwards from the vicinity of the rear contact line (12) over a more or less long distance (Lr).
  • the length (Lr) can be between 5 and 30%, and for example be 18% for a ski of length (L) equal to 2 meters.
  • the upper surface (6) of the second rear portion (22) is therefore limited laterally by two edges constituted by two segments (EF, GH) rectilinear and parallel, distant from each other by a constant distance (Ir) less than (lc). Since the rear portion, where the width of the upper surface is constant, extends over a more or less long distance, said rear portion is connected to the central part by a rear intermediate connection portion (24) whose surface upper is limited laterally by two lateral edges (7ir, 8ir) divergent towards the front formed by the two segments (BE) and (DG) converging towards the rear.
  • the front part (18) consists of two separate portions (25, 26): a first intermediate portion (26) connecting to the central part (17) and a second front portion (25) as in this, the upper surface of the ski has on the one hand a width (la) less than the width (Ic) of the central part (17), and is on the other hand, limited laterally by two lateral edges (7a, 8a) extending rectilinearly and parallel to one another.
  • said width (la) is constant over the front portion (25) of the front part (18) of the ski.
  • Said front portion (25) extending rearwardly from the vicinity of the front contact line (11) over a more or less long distance (La).
  • the length (La) can be between 8 and 45%, and for example be 22% for a ski of length (L) equal to 2 meters.
  • the upper surface (6) of the front portion (25) is therefore limited laterally by two edges constituted by two segments (IJ, HL) rectilinear and parallel, spaced from each other by a lower constant distance (la) to (lc). Since the front portion, where the width of the upper surface is constant, extends over a more or less long distance, said front portion is connected to the central part by an intermediate front connecting portion (26) whose surface upper is limited laterally by two lateral edges (7ir, 8ir) converging towards the front formed by the two segments (JA) and (LC) converging towards the front.
  • the lateral faces (9, 10) are inclined to converge upwards at least in the front (18) and rear (20) parts to form an acute angle (A) to adapt to variations in width (I) of the upper and also lower surface of the ski.
  • the width (I) of the lower surface being greater than the width of the upper surface at any point considered along the length of the ski
  • the lateral faces (9, 10) are also inclined in the central zone and the he inclination is variable along the ski.
  • the value (A) of the angle of inclination varies depending on the longitudinal position of the section considered, as shown in Figures 3, 4, 5, 6, 7, 8, 9 and more particularly the figure 10.
  • the angle (A) is greater in the central part than in the front and rear parts.
  • the variation in inclination is advantageously continuous and progressive with a decrease in the constant progressive angle (A) from the center of the ski towards the ends.
  • the lateral faces (9, 10) are symmetrical to one another with respect to the vertical longitudinal median plane (P) of symmetry of the ski, but of course, it could be otherwise.
  • the angle (A) is for example between 55 and 90 while in the front and rear parts, this angle will for example be between 15 and 90 ° .
  • the side faces (9, 10) can be flat, as shown in Figures 3 to 9, but they can have a concave or convex curvilinear profile, as shown in Figures 11 and 12. Of course, the side faces can be flat in one part of the ski and be curved in one or other of the parts, or vice versa.
  • FIG. 10 shows an example of a curve for varying the angle (A) of inclination as a function of the position along the ski (1).
  • the values of the angles (A) are referenced on the ordinate, while on the abscissa, there is the position considered along the ski (1).
  • FIG. 13 illustrates a variant of a ski in a cross section, according to which the lateral edges of the upper surfaces (6) of the front (25) and rear (22) portions include, over at least part of their length, protrusions longitudinal (70, 80), in particular to protect the upper surface (6) which is particularly attacked in these places, for example by strokes from the edges.
  • the longitudinal projections extend over the entire length of the front portion (18) and over the entire length of the rear portion (20).
  • the projections only extend over a part only of length (LD) and (LE) of the front (25) and rear (22) portions, of respective lengths (La) and (Lr ).
  • the structure of the ski can be of the sandwich type or of the box type or of any other type.
  • a preferred structure comprising a first upper rigid reinforcement (30) in the form of a shell with inverted "U" section forming a top wall (31) and two walls lateral (32 and 33), covering a core (34), the assembly being closed at its lower part by a lower element (35) comprising the metal edges (36, 37), a sliding layer (38) generally made of polyethylene as well as lower reinforcement elements (39, 40).
  • a second upper reinforcement layer (42) is provided under the first layer.
  • Said second layer (42) being for example constituted by a strip of constant width (l'b) extending at least in the central part (17) of length (L'c) intended to receive the fasteners.
  • FIG. 16 representing a section of the structure of the ski in the front part (18) of the ski shows that the second layer (42) extends beyond the central part (17) while maintaining a constant width.
  • the width (l'b) is greater than the width (la) of the upper surface of the ski and the edges (420, 421) of the second layer (42) are slightly curved upwards inside. grooves formed by the longitudinal projections (70, 80), thus reinforcing these.
  • the reinforcing layers (30, 39, 40) can be of any type such as layers of composite materials such as fiberglass, carbon fiber with epoxy or polyester resin, or a metal alloy.
  • the core (34) can be filled or unloaded foam, wood or aluminum honeycomb.
  • the surface layer (41) providing the decoration can be made of polyamide. or other such as in thermoplastic material. It can be monolayer or made up of several layers.
  • the width (la) of the upper surface (6) of the front portion (25) is equal to the width (Ir) of the upper surface (6) of the rear portion (22), but it could be otherwise and the two widths (la) and (Ir), while being less than the width (la), could be different from each other.
  • the width (la) of the upper surface (6) of the front portion (25) could be less than or greater than the width (Ir) of the upper surface (6) of the rear portion (22).
  • the upper surface of the ski (6) has been represented in the form of a flat surface. But it goes without saying that this surface could have any other shape and in particular be curved, and in this case, either convex, or concave, or then constituted by a succession of surfaces of all kinds.
  • intermediate connecting portions (24, 26) connecting the front (25) and rear (22) portions to the central portion (17) and which are materialized by two lateral edges (7 , 8) marked in such a way that these extend continuously along the ski. It may be otherwise without departing from the scope of the invention and provision may be made for the lateral edges (7, 8) to have a discontinuity at the intermediate connecting portions (24, 26).
  • the anterior part of the lateral edge does not connect directly to the posterior part of the lateral edge in the intermediate connecting portion.
  • the lateral edge may fade in this region if a tangent connection radius is provided connecting the lateral faces (9, 10) to the upper face (6), or can deviate if a radius intersecting with the upper surface (6).

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  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Fittings On The Vehicle Exterior For Carrying Loads, And Devices For Holding Or Mounting Articles (AREA)

Abstract

Ski having the shape of an elongate beam (2) comprising a lower gliding face (3) limited laterally by two lower edges (4, 5), an upper face (6) limited laterally by two upper edges (7, 8) and two lateral faces (9, 10), and consisting of a central part (17) extended at the front (AV) by a front part (18) ending at its front extremity (13) in the tip (14) and extended to the rear (AR) by a rear part (20) ending at its rear extremity (15) in the heel (16), characterised in that the said front part (18) consists of a front portion (25) connected to the central part (17) via an intermediate front linking portion (26), whilst the said rear part (20) consists of a rear portion (22) connected to the central part (17) via an intermediate rear linking portion (24), and in that the two upper edges (7c, 8c) of the upper surface (16) are parallel in the central part (17), whilst one of the two front or rear portions (22, 25) is such that, in this zone, on the one hand the lateral faces (9, 10) are inclined in order to converge upwards and, on the other hand, the upper surface (7) is narrower than in the central part and has a constant width (1a, 1c). <IMAGE>

Description

La présente invention se rapporte à un ski alpin, un ski de fond, un monoski ou un sud pour neige. Elle concerne plus particulièrement un perfectionnement à ce type de ski.The present invention relates to an alpine ski, a cross-country ski, a monoski or a snow south. It relates more particularly to an improvement in this type of skiing.

Les skis utilisés notamment dans la pratique du ski alpin sont constitués par une poutre de forme allongée se terminant à l'avant par une spatule, et à l'arrière, par un talon. L'épaisseur du ski est généralement plus importante dans la partie centrale et diminue progressivement vers les extrémités pour que le ski forme en quelque sorte une poutre à flexion particulière.The skis used in particular in the practice of alpine skiing consist of an elongated beam ending at the front by a spatula, and at the rear, by a heel. The thickness of the ski is generally greater in the central part and gradually decreases towards the ends so that the ski somehow forms a beam with a particular flexion.

Les skis actuels ont généralement une structure composite dans laquelle sont combinés différents matériaux de manière que chacun d'eux intervienne de façon optimale, compte-tenu de la distribution des contraintes mécaniques lors de l'utilisation du ski. Ainsi, la structure comprend généralement des éléments de protection périphériques, des éléments internes de résistance pour résister aux contraintes de flexion et de torsion, et un noyau, ainsi que des éléments de glissement et d'accrochage. Ces éléments sont assemblés par collage ou par injection, l'assemblage s'effectuant généralement à chaud dans un moule présentant la forme définitive du ski, avec une partie avant fortement relevée en spatule, une partie arrière légèrement relevée en talon, une partie centrale cambrée.Current skis generally have a composite structure in which different materials are combined so that each of them intervenes optimally, taking into account the distribution of mechanical stresses when using the ski. Thus, the structure generally comprises peripheral protective elements, internal resistance elements to resist the bending and torsional stresses, and a core, as well as sliding and latching elements. These elements are assembled by gluing or by injection, the assembly generally being carried out hot in a mold having the final shape of the ski, with a front part strongly raised in tip, a rear part slightly raised in heel, a central arched part. .

Malgré le souci des constructeurs de fabriquer des skis de bonne qualité, ceux-ci n'ont pas, à ce jour trouvé un ski de haute performance satisfaisant dans toutes les conditions d'utilisation.Despite the manufacturers' concern to manufacture good quality skis, they have not, to date found a high performance ski satisfactory in all conditions of use.

On sait que les caractéristiques dimensionnelles et structurelles du ski déterminent les caractéristiques de skiabilité de celui-ci, sa ligne de cote permettant de faire évoluer le ski en virage en favorisant sa tenue en courbe, et sa ligne d'épaisseur permettant d'obtenir les bons réglages en flexion. Le réglage de la torsion se faisant grâce à la ligne de chant.We know that the dimensional and structural characteristics of the ski determine the skiability characteristics of the ski, its dimension line making it possible to make the ski evolve when cornering by promoting its holding in a curve, and its thickness line making it possible to obtain the good bending adjustments. The torsion is adjusted using the edge line.

Le brevet français n ° 2 522 978 enseigne l'utilisation d'un ski dont les faces latérales sont inclinées de façon constante ou variable, afin de réduire les frottements latéraux lors de l'exécution des virages. L'inclinaison est variable notamment pour s'adapter aux variations de largeur de la surface supérieure du ski dans le sens d'un rétrécissement curviligne dans les abords de la zone centrale. Dans la région des fixations proprement dite, la largeur peut, comme le montre la figure 1 de ce document, être constante afin de créer une plateforme apte à recevoir les fixations. Cette forme de ski est d'une fabrication compliquée, comptetenu du fait que les arêtes supérieures sont curvilignes sur une grande partie de la longueur du ski. Cette difficulté apparaît notamment dans les structures modernes du ski qui utilisent des renforts fibreux pré-imprégnés, le pliage au niveau des arêtes étant difficile et les fibres ne pouvant pas être disposées de manière régulière au niveau des arêtes supérieures. Il en résulte que les arêtes sont mécaniquement moins résistantes. De plus, les bords non rectilignes de la face supérieure ne constituent pas des repères simples et efficaces pour la réalisation de la décoration de la face supérieure par des moyens de sublimation, par exemple. Le brevet français n ° 2 598 930 de la demanderesse concerne un ski dont la plateforme supérieure présente une largeur constante sur toute la longueur du ski et dont les chants présentent une inclinaison variable pour s'adapter aux variations de largeur de la surface de glisse ou ligne de cote du ski. Ce type de ski présente un certain nombre d'avantages par rapport aux skis connus à ce jour, mais n'est pas totalement satisfaisant pour certains types de neige et certains types de skieurs dont la pratique du ski nécessite encore un certain nombre de perfectionnements.The French Patent No. 2,522,978 teaches the use of a ski whose lateral faces are inclined steadily or variable, in order to reduce the side friction when performing turns. The inclination is variable in particular to adapt to variations in width of the upper surface of the ski in the direction of a curvilinear narrowing in the surroundings of the central area. In the region of the fasteners proper, the width can, as shown in Figure 1 of this document, be constant in order to create a platform capable of receiving the fasteners. This form of ski is complicated to manufacture, due to the fact that the upper edges are curvilinear over a large part of the length of the ski. This difficulty appears in particular in modern ski structures which use pre-impregnated fibrous reinforcements, the folding at the edges being difficult and the fibers being unable to be arranged regularly at the upper edges. As a result, the edges are mechanically less resistant. In addition, the non-rectilinear edges of the upper face do not constitute simple and effective markers for the decoration of the upper face by means of sublimation, for example. The French Patent No. 2,598,930 of the Applicant relates to a ski of which the upper platform has a constant width over the entire length of the ski and whose edges have a variable inclination to adapt to width variations of the riding surface or ski dimension line. This type of ski has a certain number of advantages compared to the skis known to date, but is not completely satisfactory for certain types of snow and certain types of skiers whose skiing practice still requires a certain number of improvements.

La présente invention concerne d'une part des perfectionnements apportés à ces skis dans le but de faciliter leur fabrication, et d'autre part, permet d'obtenir les caractéristiques de skiabilité, de confort et de résistance désirées.The present invention relates on the one hand to improvements made to these skis in order to facilitate their manufacture, and on the other hand, makes it possible to obtain the desired skiability, comfort and resistance characteristics.

Ainsi le ski selon l'invention a la forme d'une poutre allongée comprenant une face inférieure de glissement limitée latéralement par deux arêtes inférieures, une face - supérieure limitée latéralement par deux arêtes supérieures et deux faces latérales, est constitue d'une partie centrale prolongée à l'avant par une partie avant terminée à son extrémité avant par la spatule et se prolonge à l'arrière par une partie arrière terminée à son extrémité arrière par le talon, ladite partie avant étant constituée par une portion avant reliée à la partie centrale par une portion intermédiaire de liaison avant, tandis que ladite partie arrière est constituée par une portion arrière reliée à la partie centrale par une portion intermédiaire de liaison arrière, les deux arêtes supérieures de la surface supérieure étant parallèles dans la partie centrale, tandis que l'une des deux portions avant ou arrière est telle que dans cette zone, d'une part, les faces latérales sont inclinées pour converger vers le haut, et d'autre part, la surface supérieure est moins large que dans la partie centrale et présente une largeur constante.Thus, the ski according to the invention has the form of an elongated beam comprising a lower sliding face limited laterally by two lower edges, an upper face limited laterally by two upper edges and two lateral faces, is made up of a central part. extended at the front by a front part terminated at its front end by the spatula and extended at the rear by a rear part terminated at its rear end by the heel, said front part consisting of a front portion connected to the part central by an intermediate front connecting portion, while said rear part is constituted by a rear portion connected to the central part by an intermediate rear connecting portion, the two upper edges of the upper surface being parallel in the central part, while one of the two front or rear portions is such that in this area, on the one hand, the fa these sides are inclined to converge upwards, and on the other hand, the upper surface is narrower than in the central part and has a constant width.

Le fait que le ski présente des portions de largeur constante ou dont les arêtes supérieures sont parallèles, a notamment pour but de faciliter la fabrication du ski et notamment la découpe et la mise en place d'un renfort supplémentaire supérieur, ainsi que d'améliorer la résistance des arêtes supérieures dans ces portions. Le fait que l'une au moins des deux portions avant ou arrière ait une surface supérieure de largeur inférieure à celle de la partie centrale permet, tout en conservant les avantages précités, d'une part de disposer d'un espace suffisant, destiné à l'emplacement des fixations, d'autre part, de disposer d'un ski dont les valeurs de torsion et flexion sont davantage modulables, en fonction de la position longitudinale considérée, que par rapport à celles des skis déjà connus.The fact that the ski has portions of constant width or whose upper edges are parallel, in particular aims to facilitate the manufacture of the ski and in particular the cutting and the establishment of an additional additional reinforcement, as well as to improve the resistance of the upper edges in these portions. The fact that at least one of the two front or rear portions has an upper surface with a width less than that of the central part allows, while retaining the aforementioned advantages, on the one hand of having a sufficient space, intended for the location of the bindings, on the other hand, of having a ski whose torsion and flexion values are more modular, depending on the position longitudinal considered, compared to those of skis already known.

Selon une disposition particulière, la portion avant est telle que sa surface supérieure est moins large que dans la partie centrale et est limitée par les deux arêtes latérales qui sont parallèles.According to a particular arrangement, the front portion is such that its upper surface is narrower than in the central part and is limited by the two lateral edges which are parallel.

Selon une autre disposition complémentaire, la portion arrière est telle que sa surface supérieure est moins large que dans la partie centrale et est limitée par les deux arêtes latérales qui sont parallèles.According to another complementary arrangement, the rear portion is such that its upper surface is narrower than in the central part and is limited by the two lateral edges which are parallel.

Selon une disposition particulière, la largeur de la surface supérieure de la portion avant est égale à la largeur de la surface supérieure de la portion arrière tandis que dans une autre disposition, la largeur de la surface supérieure de la portion avant est différente de la largeur de la surface supérieure de la portion arrière.According to a particular arrangement, the width of the upper surface of the front portion is equal to the width of the upper surface of the rear portion while in another arrangement, the width of the upper surface of the front portion is different from the width of the upper surface of the rear portion.

Selon une disposition préférée, les faces latérales sont aussi inclinées dans la partie centrale du ski, pour converger vers le haut de façon symétrique par rapport à l'axe longitudinal médian du ski.According to a preferred arrangement, the lateral faces are also inclined in the central part of the ski, to converge upwards symmetrically with respect to the median longitudinal axis of the ski.

Selon une disposition avantageuse, l'angle d'inclinaison des faces latérales varie de façon continue de telle sorte que ledit angle d'inclinaison diminue progressivement du centre vers les extrémités.According to an advantageous arrangement, the angle of inclination of the lateral faces varies continuously so that said angle of inclination decreases progressively from the center towards the ends.

L'invention permet d'optimiser la raideur en torsion sans modifier l'épaisseur du ski, ni la ligne de cote. En effet, par modification de la largeur du dessus du ski, il est possible d'obtenir les caractéristiques voulues du comportement en torsion de ce dernier.The invention makes it possible to optimize the torsional stiffness without modifying the thickness of the ski or the dimension line. Indeed, by modifying the width of the top of the ski, it is possible to obtain the desired characteristics of the torsional behavior of the latter.

D'autres caractéristiques et avantages de l'invention se dégageront de la description qui va suivre en regard des dessins annexés, qui ne sont donnés qu'à titre d'exemples non limitatifs.

  • Les figures 1 à 10 illustrent un premier mode de réalisation d'un ski selon l'invention.
  • La figure 1 est une vue latérale du ski selon l'invention.
  • La figure 2 est une vue de dessus du ski de la figure 1.
  • Les figures 3, 4, 5, 6, 7, 8 et 9 sont des vues en coupe transversale selon III-III, IV-IV, V-V, VI-VI, VII-VII, VIII-VIII et IX-IX du ski de la figure 2 selon une échelle différente.
  • La figure 10 est un diagramme représentant la variation d'inclinaison des faces latérales du ski.
  • Les figures 11 et 12 sont des vues similaires à la figure 4 montrant deux variantes de réalisation.
  • La figure 13 est une vue similaire à la figure 4 montrant une autre variante de réalisation.
  • Les figures 14 et 15 représentent deux exemples, en vue de dessus, d'un ski selon la variante de la figure 13.
  • La figure 16 est une vue en coupe de la structure du ski de la figure 14 selon N-N.
  • La figure 17 est une vue en coupe de la figure 14 et de la figure 18 selon M-M.
  • La figure 18 est une vue de dessus du ski montrant plus particulièrement en trait interrompu, la couche de renfort (42).
Other characteristics and advantages of the invention will emerge from the description which follows with reference to the appended drawings, which are given only by way of nonlimiting examples.
  • Figures 1 to 10 illustrate a first embodiment of a ski according to the invention.
  • Figure 1 is a side view of the ski according to the invention.
  • Figure 2 is a top view of the ski of Figure 1.
  • Figures 3, 4, 5, 6, 7, 8 and 9 are cross-sectional views along III-III, IV-IV, VV, VI-VI, VII-VII, VIII-VIII and IX-IX of the ski Figure 2 on a different scale.
  • FIG. 10 is a diagram representing the variation in inclination of the lateral faces of the ski.
  • Figures 11 and 12 are views similar to Figure 4 showing two alternative embodiments.
  • Figure 13 is a view similar to Figure 4 showing another alternative embodiment.
  • FIGS. 14 and 15 represent two examples, seen from above, of a ski according to the variant of FIG. 13.
  • Figure 16 is a sectional view of the structure of the ski of Figure 14 along NN.
  • Figure 17 is a sectional view of Figure 14 and Figure 18 according to MM.
  • Figure 18 is a top view of the ski showing more particularly in broken lines, the reinforcing layer (42).

Comme connu en soi et tel que le représentent les figures l'illustrant, le ski (1) selon l'invention a la forme d'une poutre allongée (2) comprenant une surface inférieure (3) de glissement limitée latéralement par deux arêtes inférieures (4, 5); il comprend entre autres, une surface supérieure (6) limitée latéralement par deux arêtes supérieures (7, 8), et deux faces latérales (9, 10) reliant les arêtes inférieures (4, 5) auxdites arêtes supérieures (7, 8). Le corps du ski proprement dit s'étend entre une ligne de contact avant (11) et une ligne de contact arrière (12) pour se prolonger vers l'avant par une partie antérieure (13) relevée, formant la spatule (14) et vers l'arrière, par une partie postérieure (15) plus courte et moins relevée formant le talon (16).As known per se and as shown in the figures illustrating it, the ski (1) according to the invention has the form of an elongated beam (2) comprising a lower sliding surface (3) limited laterally by two lower edges (4, 5); it comprises inter alia, an upper surface (6) bounded laterally by two upper edges (7, 8), and two lateral faces (9, 10) connecting the lower edges (4, 5) to said upper edges (7, 8). The body of the ski proper extends between a front contact line (11) and a rear contact line (12) to extend forwards by a raised front part (13), forming the tip (14) and backwards, by a shorter and less raised posterior part (15) forming the heel (16).

On constate à la figure 1 que le corps du ski (170) considéré entre les deux lignes de contact avant (11) et arrière (12) est, de façon connue en soi, légèrement cambré en position de repos sans charge et a sa propre distribution d'épaisseur. Ainsi, l'épaisseur (e) est maximum dans la zone centrale pour diminuer par exemple progressivement vers l'avant (AV) et vers l'arrière (AR).It can be seen in FIG. 1 that the ski body (170) considered between the two front (11) and rear (12) contact lines is, in a manner known per se, slightly arched in the rest position without load and has its own thickness distribution. Thus, the thickness (e) is maximum in the central zone to decrease, for example gradually towards the front (AV) and towards the rear (AR).

Le ski selon l'invention comprend une partie centrale (17) prolongée vers l'avant par une partie avant (18) s'étendant de l'extrémité avant (19) de la partie centrale (17) à la ligne de contact avant (11), et une partie arrière (20) s'étendant de l'extrémité arrière (21) de la partie centrale (17) à la ligne de contact arrière (12). La partie centrale (17) du ski correspond à la zone centrale de montage des fixations et s'étend par exemple sur une longueur (LC) pouvant être comprise entre 400 et 700 millimètres, et par exemple être de 60 centimètres.The ski according to the invention comprises a central part (17) extended forwards by a front part (18) extending from the front end (19) of the central part (17) to the front contact line ( 11), and a rear part (20) extending from the rear end (21) of the central part (17) to the rear contact line (12). The central part (17) of the ski corresponds to the central area for mounting the bindings and extends for example over a length (LC) which can be between 400 and 700 millimeters, and for example be 60 centimeters.

Selon une des caractéristiques de l'invention, la surface supérieure du ski (6) dans la partie centrale (17) a une largeur constante (lc). Ainsi la surface supérieure (6) de la partie centrale (7) est limitée latéralement par deux arêtes latérales (7c, 8c) rectilignes et parallèles, constituées par deux segments respectivement (AB) et (CD) rectilignes et parallèles distants l'un de l'autre d'une distance constante (lc).According to one of the characteristics of the invention, the upper surface of the ski (6) in the central part (17) has a constant width (lc). Thus the upper surface (6) of the central part (7) is laterally limited by two lateral edges (7c, 8c) rectilinear and parallel, constituted by two segments respectively (AB) and (CD) rectilinear and parallel distant one of the other by a constant distance (lc).

Selon une caractéristique complémentaire, la partie arrière est constituée de deux portions distinctes (22, 24), une première portion intermédiaire (24) se raccordant à la partie centrale (17), et une portion arrière (22), telle que dans celle-ci, la surface supérieure du ski (6) a d'une part une largeur (Ir) inférieure à la largeur (Ic) de la partie centrale, et d'autre part, est limitée latéralement par deux arêtes latérales (7r) et (8r) s'étendant de façon rectiligne et parallèlement l'une à l'autre. Ainsi, ladite largeur (Ir) est constante sur la seconde portion arrière (22) de la partie arrière (20) du ski. Ladite seconde portion arrière s'étendant vers l'avant à partir des environs de la ligne de contact arrière (12) sur une distance (Lr) plus ou moins longue. Ainsi, la longueur (Lr) peut être comprise entre 5 et 30%, et par exemple être de 18% pour un ski de longueur (L) égale à 2 mètres. La surface supérieure (6) de la seconde portion arrière (22) est donc limitée latéralement par deux arêtes constituées par deux segments (EF, GH) rectilignes et parallèles, distants l'un de l'autre d'une distance constante (Ir) inférieure à (lc). Etant donné que la portion arrière, où la largeur de la surface supérieure est constante, s'étend sur une distance plus ou moins longue, ladite portion arrière est reliée à la partie centrale par une portion intermédiaire arrière de liaison (24) dont la surface supérieure est limitée latéralement par deux arêtes latérales (7ir, 8ir) divergentes vers l'avant formées par les deux segments (BE) et (DG) convergeant vers l'arrière.According to an additional characteristic, the rear portion consists of two separate portions (22, 24), a first intermediate portion (24) connecting to the central portion (17), and a rear portion (22), such as in this one here, the surfa this upper of the ski (6) has on the one hand a width (Ir) less than the width (Ic) of the central part, and on the other hand, is limited laterally by two lateral edges (7r) and (8r) s 'extending in a straight line and parallel to each other. Thus, said width (Ir) is constant over the second rear portion (22) of the rear part (20) of the ski. Said second rear portion extending forwards from the vicinity of the rear contact line (12) over a more or less long distance (Lr). Thus, the length (Lr) can be between 5 and 30%, and for example be 18% for a ski of length (L) equal to 2 meters. The upper surface (6) of the second rear portion (22) is therefore limited laterally by two edges constituted by two segments (EF, GH) rectilinear and parallel, distant from each other by a constant distance (Ir) less than (lc). Since the rear portion, where the width of the upper surface is constant, extends over a more or less long distance, said rear portion is connected to the central part by a rear intermediate connection portion (24) whose surface upper is limited laterally by two lateral edges (7ir, 8ir) divergent towards the front formed by the two segments (BE) and (DG) converging towards the rear.

Selon une caractéristique complémentaire, la partie avant (18) est constituée de deux portions distinctes (25, 26) : une première portion intermédiaire (26) se raccordant à la partie centrale (17) et une seconde portion avant (25) telle que dans celle-ci, la surface supérieure du ski a d'une part une largeur (la) inférieure à la largeur (Ic) de la partie centrale (17), et est d'autre part, limitée latéralement par deux arêtes latérales (7a, 8a) s'étendant de façon rectiligne et parallèlement l'une à l'autre. Ainsi, ladite largeur (la) est constante sur la portion avant (25) de la partie avant (18) du ski. Ladite portion avant (25) s'étendant vers l'arrière à partir des environs de la ligne de contact avant (11) sur une distance (La) plus ou moins longue. Ainsi, la longueur (La) peut être comprise entre 8 et 45%, et par exemple être de 22% pour un ski de longueur (L) égale à 2 mètres. La surface supérieure (6) de la portion avant (25) est donc limitée latéralement par deux arêtes constituées par deux segments (IJ, HL) rectilignes et parallèles, distants l'un de l'autre d'une distance constante (la) inférieure à (lc). Etant donné que la portion avant, où la largeur de la surface supérieure est constante, s'étend sur une distance plus ou moins longue, ladite portion avant est reliée à la partie centrale par une portion intermédiaire avant de liaison (26) dont la surface supérieure est limitée latéralement par deux arêtes latérales (7ir, 8ir) convergentes vers l'avant formées par les deux segments (JA) et (LC) convergeants vers l'avant.According to an additional characteristic, the front part (18) consists of two separate portions (25, 26): a first intermediate portion (26) connecting to the central part (17) and a second front portion (25) as in this, the upper surface of the ski has on the one hand a width (la) less than the width (Ic) of the central part (17), and is on the other hand, limited laterally by two lateral edges (7a, 8a) extending rectilinearly and parallel to one another. Thus, said width (la) is constant over the front portion (25) of the front part (18) of the ski. Said front portion (25) extending rearwardly from the vicinity of the front contact line (11) over a more or less long distance (La). Thus, the length (La) can be between 8 and 45%, and for example be 22% for a ski of length (L) equal to 2 meters. The upper surface (6) of the front portion (25) is therefore limited laterally by two edges constituted by two segments (IJ, HL) rectilinear and parallel, spaced from each other by a lower constant distance (la) to (lc). Since the front portion, where the width of the upper surface is constant, extends over a more or less long distance, said front portion is connected to the central part by an intermediate front connecting portion (26) whose surface upper is limited laterally by two lateral edges (7ir, 8ir) converging towards the front formed by the two segments (JA) and (LC) converging towards the front.

Selon une caractéristique complémentaire et afin de permettre de raccorder la surface inférieure (3) à la surface supérieure (6), tout en tenant compte des variations d'épaisseur (e) et de la largeur (I) de la surface supérieure (6), les faces latérales (9, 10) sont inclinées pour converger vers le haut au moins dans les parties avant (18) et arrière (20) pour former un angle aigu (A) pour s'adapter aux variations de largeur (I) de la surface supérieure et également inférieure du ski.According to an additional characteristic and in order to allow the lower surface (3) to be connected to the upper surface (6), while taking account of variations in thickness (e) and in width (I) of the upper surface (6) , the lateral faces (9, 10) are inclined to converge upwards at least in the front (18) and rear (20) parts to form an acute angle (A) to adapt to variations in width (I) of the upper and also lower surface of the ski.

Selon une disposition préférée, la largeur (I) de la surface inférieure étant supérieure à la largeur de la surface supérieure en tout endroit considéré sur la longueur du ski, les faces latérales (9, 10) sont aussi inclinées dans la zone centrale et l'inclinaison est variable le long du ski. En effet, la valeur (A) de l'angle d'inclinaison varie en fonction de la position longitudinale de la section considérée, comme le montrent les figures 3, 4, 5, 6, 7, 8, 9 et plus particulièrement la figure 10. Notons aussi qu'avantageusement, l'angle (A) est plus important dans la partie centrale que dans les parties avant et arrière. Par ailleurs, la variation d'inclinaison est avantageusement continue et progressive avec une diminution de l'angle (A) constante progressive du centre du ski vers les extrémités. Dans le mode de réalisation préféré et représenté aux figures 1 à 9, les faces latérales (9, 10) sont symétriques l'une de l'autre par rapport au plan vertical longitudinal médian (P) de symétrie du ski, mais bien entendu, il pourrait en être autrement.According to a preferred arrangement, the width (I) of the lower surface being greater than the width of the upper surface at any point considered along the length of the ski, the lateral faces (9, 10) are also inclined in the central zone and the he inclination is variable along the ski. Indeed, the value (A) of the angle of inclination varies depending on the longitudinal position of the section considered, as shown in Figures 3, 4, 5, 6, 7, 8, 9 and more particularly the figure 10. Note also that advantageously, the angle (A) is greater in the central part than in the front and rear parts. Furthermore, the variation in inclination is advantageously continuous and progressive with a decrease in the constant progressive angle (A) from the center of the ski towards the ends. In the preferred embodiment and shown in FIGS. 1 to 9, the lateral faces (9, 10) are symmetrical to one another with respect to the vertical longitudinal median plane (P) of symmetry of the ski, but of course, it could be otherwise.

Dans la partie centrale (17), l'angle (A) est par exemple compris entre 55 et 90 tandis que dans les parties avant et arrière, cet angle sera par exemple compris entre 15 et 90°. Les faces latérales (9, 10) peuvent être planes, tel que cela est représenté aux figures 3 à 9, mais elles peuvent avoir un profil curviligne concave ou convexe, comme cela est représenté aux figures 11 et 12. Bien entendu, les faces latérales peuvent être planes dans une partie du ski et être courbes dans l'une ou l'autre des parties, ou inversement.In the central part (17), the angle (A) is for example between 55 and 90 while in the front and rear parts, this angle will for example be between 15 and 90 ° . The side faces (9, 10) can be flat, as shown in Figures 3 to 9, but they can have a concave or convex curvilinear profile, as shown in Figures 11 and 12. Of course, the side faces can be flat in one part of the ski and be curved in one or other of the parts, or vice versa.

On a représenté à la figure 10, un exemple de courbe de variation de l'angle (A) d'inclinaison en fonction de la position le long du ski (1). Les valeurs des angles (A) sont référencées en ordonnée, tandis qu'en abscisse, on y trouve la position considérée le long du ski (1).FIG. 10 shows an example of a curve for varying the angle (A) of inclination as a function of the position along the ski (1). The values of the angles (A) are referenced on the ordinate, while on the abscissa, there is the position considered along the ski (1).

La figure 13 illustre une variante d'un ski dans une coupe transversale, selon laquelle les bords latéraux des surfaces supérieures (6) des portions avant (25) et arrière (22) comprennent, sur une partie de leur longueur au moins, des saillies longitudinales (70, 80), notamment pour protéger la surface supérieure (6) particulièrement agressée dans ces endroits, par des coups de carres par exemple.FIG. 13 illustrates a variant of a ski in a cross section, according to which the lateral edges of the upper surfaces (6) of the front (25) and rear (22) portions include, over at least part of their length, protrusions longitudinal (70, 80), in particular to protect the upper surface (6) which is particularly attacked in these places, for example by strokes from the edges.

Dans l'exemple de la figure 14, les saillies longitudinales s'étendent sur toute la longueur de la portion avant (18) et sur toute la longueur de la portion arrière (20). Dans l'exemple de la figure 15, les saillies ne s'étendent que sur une partie seulement de longueur (LD) et (LE) des portions avant (25) et arrière (22), de longueurs respectives (La) et (Lr).In the example of Figure 14, the longitudinal projections extend over the entire length of the front portion (18) and over the entire length of the rear portion (20). In the example of FIG. 15, the projections only extend over a part only of length (LD) and (LE) of the front (25) and rear (22) portions, of respective lengths (La) and (Lr ).

En outre, la structure du ski peut être du type sandwich ou du type à caisson ou de tout autre type. Aux figures 16, 17 et 18, on a représenté à titre d'exemple, une structure préférée comprenant un premier renfort supérieur (30) rigide en forme de coque à section en "U" renversé formant une paroi supérieure (31) et deux parois latérales (32 et 33), recouvrant un noyau (34), l'ensemble étant fermé à sa partie inférieure par un élément inférieur (35) comportant les carres métalliques (36, 37), une couche (38) de glissement généralement en polyéthylène ainsi que des éléments de renfort inférieur (39, 40). Une couche supérieure superficielle (41) recouvrant le renfort supérieur pour former le décor et terminant l'aspect esthétique du ski. Avantageusement, une deuxième couche de renfort supérieur (42) est prévue sous la première couche. Ladite deuxième couche (42) étant par exemple constituée par une bande de largeur (l'b) constante s'étendant au moins dans la partie centrale (17) de longueur (L'c) destinée à recevoir les fixations.In addition, the structure of the ski can be of the sandwich type or of the box type or of any other type. In Figures 16, 17 and 18, there is shown by way of example, a preferred structure comprising a first upper rigid reinforcement (30) in the form of a shell with inverted "U" section forming a top wall (31) and two walls lateral (32 and 33), covering a core (34), the assembly being closed at its lower part by a lower element (35) comprising the metal edges (36, 37), a sliding layer (38) generally made of polyethylene as well as lower reinforcement elements (39, 40). An upper surface layer (41) covering the upper reinforcement to form the decoration and ending the aesthetic appearance of the ski. Advantageously, a second upper reinforcement layer (42) is provided under the first layer. Said second layer (42) being for example constituted by a strip of constant width (l'b) extending at least in the central part (17) of length (L'c) intended to receive the fasteners.

La figure 16 représentant une coupe de la structure du ski dans la partie avant (18) du ski montre que la deuxième couche (42) s'étend au-delà de la partie centrale (17) en conservant une largeur constante. Dans ce cas, la largeur (l'b) est supérieure à la largeur (la) de la surface supérieure du ski et les rebords (420, 421) de la deuxième couche (42) sont légèrement recourbés vers le haut à l'intérieur des rainures formées par les saillies longitudinales (70, 80), renforçant ainsi celles-ci..FIG. 16 representing a section of the structure of the ski in the front part (18) of the ski shows that the second layer (42) extends beyond the central part (17) while maintaining a constant width. In this case, the width (l'b) is greater than the width (la) of the upper surface of the ski and the edges (420, 421) of the second layer (42) are slightly curved upwards inside. grooves formed by the longitudinal projections (70, 80), thus reinforcing these.

Les couches de renfort (30, 39, 40) peuvent être de tout type tels que des couches de matériaux composites comme de la fibre de verre, fibre de carbone avec de la résine époxy ou polyester, ou en alliage métallique. Le noyau (34) peut être de la mousse chargée ou non, du bois ou du nid d'abeille en aluminium. La couche superficielle (41) assurant le décor peut être en polyamide. ou autre tel qu'en matériau thermoplastique. Elle peut être monocouche ou constituée de plusieurs couches.The reinforcing layers (30, 39, 40) can be of any type such as layers of composite materials such as fiberglass, carbon fiber with epoxy or polyester resin, or a metal alloy. The core (34) can be filled or unloaded foam, wood or aluminum honeycomb. The surface layer (41) providing the decoration can be made of polyamide. or other such as in thermoplastic material. It can be monolayer or made up of several layers.

Selon le mode de réalisation proposé aux figures 1 à 10, la largeur (la) de la surface supérieure (6) de la portion avant (25) est égale à la largeur (Ir) de la surface supérieure (6) de la portion arrière (22), mais il pourrait en être autrement et les deux largeurs (la) et (Ir), tout en étant inférieures à la largeur (la), pourraient être différentes l'une de l'autre. Ainsi la largeur (la) de la surface supérieure (6) de la portion avant (25) pourrait être inférieure ou supérieure à la largeur (Ir) de la surface supérieure (6) de la portion arrière (22).According to the embodiment proposed in FIGS. 1 to 10, the width (la) of the upper surface (6) of the front portion (25) is equal to the width (Ir) of the upper surface (6) of the rear portion (22), but it could be otherwise and the two widths (la) and (Ir), while being less than the width (la), could be different from each other. Thus the width (la) of the upper surface (6) of the front portion (25) could be less than or greater than the width (Ir) of the upper surface (6) of the rear portion (22).

Dans le mode de réalisation décrit précédemment, la surface supérieure du ski (6) a été représentée sous la forme d'une surface plane. Mais il va de soi que cette surface pourrait avoir toute autre forme et notamment être courbe, et dans ce cas, soit convexe, soit concave, ou alors constituée par une succession de surfaces de tout genre.In the embodiment described above, the upper surface of the ski (6) has been represented in the form of a flat surface. But it goes without saying that this surface could have any other shape and in particular be curved, and in this case, either convex, or concave, or then constituted by a succession of surfaces of all kinds.

De même, on a représenté dans les modes précédemment décrits des portions intermédiaires de liaison (24, 26) reliant les portions avant (25) et arrière (22) à la portion centrale (17) et qui sont matérialisés par deux arêtes latérales (7, 8) marquées de telle façon que celles-ci s'étendent de façon continue le long du ski. Il peut en être autrement sans sortir du cadre de l'invention et l'on peut prévoir que les arêtes latérales (7, 8) présentent une discontinuité au niveau des portions intermédiaires de liaison (24, 26).Similarly, there has been shown in the previously described modes intermediate connecting portions (24, 26) connecting the front (25) and rear (22) portions to the central portion (17) and which are materialized by two lateral edges (7 , 8) marked in such a way that these extend continuously along the ski. It may be otherwise without departing from the scope of the invention and provision may be made for the lateral edges (7, 8) to have a discontinuity at the intermediate connecting portions (24, 26).

Par discontinuité, il faut entendre que la partie antérieure de l'arête latérale ne se raccorde pas directement à la partie postérieure de l'arête latérale dans la portion intermédiaire de liaison. Par exemple, l'arête latérale peut s'estomper dans cette région si l'on prévoit un rayon tangent de raccordement reliant les faces latérales (9, 10) à la face supérieure (6), ou peut dévier si l'on prévoit un rayon sécant avec la surface supérieure (6).By discontinuity, it should be understood that the anterior part of the lateral edge does not connect directly to the posterior part of the lateral edge in the intermediate connecting portion. For example, the lateral edge may fade in this region if a tangent connection radius is provided connecting the lateral faces (9, 10) to the upper face (6), or can deviate if a radius intersecting with the upper surface (6).

Bien entendu l'invention n'est pas limitée aux modes de réalisation décrits et représentés à titre d'exemples, mais elle comprend aussi tous les équivalents techniques ainsi que leurs combinaisons et d'autres variantes sont également possibles sans pour autant sortir du cadre de l'invention.Of course, the invention is not limited to the embodiments described and shown by way of examples, but it also includes all the technical equivalents as well as their combinations and other variants are also possible without departing from the scope of the invention.

Claims (11)

1. Ski (1) ayant la forme d'une poutre allongée (2) comprenant une face inférieure de glissement (3) limitée latéralement par deux arêtes inférieures (4, 5), une face supérieure (6) limitée latéralement par deux arêtes supérieures (7, 8) et deux faces latérales (9, 10), et constitué d'une partie centrale (17) prolongée à l'avant (AV) par une partie avant (18) terminée à son extrémité avant (13) par la spatule (14) et prolongée à l'arrière (AR) par une partie arrière (20) terminée à son extrémité arrière (15) par le talon (16), caractérisé en ce que ladite partie avant (18) est constituée par une portion avant (25) reliée à la partie centrale (17) par une portion intermédiaire de liaison avant (26), tandis que ladite partie arrière (20) est constituée par une portion arrière (22) reliée à la partie centrale (17) par une portion intermédiaire de liaison arrière (24), et en ce que les deux arêtes supérieures (7c ,8c) de la surface supérieure (6) sont parallèles dans la partie centrale (17), tandis que l'une des deux portions avant ou arrière (22, 25) est telle que dans cette zone, d'une part les faces latérales (9, 10) sont inclinées pour converger vers le haut et d'autre part, la surface supérieure (6) est moins large que dans la partie centrale et présente une largeur (la, Ir) constante.1. Ski (1) having the shape of an elongated beam (2) comprising a lower sliding face (3) bounded laterally by two lower edges (4, 5), an upper face (6) bounded laterally by two upper edges (7, 8) and two side faces (9, 10), and consisting of a central part (17) extended at the front (AV) by a front part (18) terminated at its front end (13) by the tip (14) and extended at the rear (AR) by a rear part (20) terminated at its rear end (15) by the heel (16), characterized in that said front part (18) is constituted by a portion front (25) connected to the central part (17) by an intermediate front connection portion (26), while said rear part (20) is constituted by a rear portion (22) connected to the central part (17) by a intermediate rear connection portion (24), and in that the two upper edges (7c, 8c) of the upper surface upper (6) are parallel in the central part (17), while one of the two front or rear portions (22, 25) is such that in this zone, on the one hand the lateral faces (9, 10) are inclined to converge upwards and on the other hand, the upper surface (6) is narrower than in the central part and has a constant width (la, Ir). 2. Ski selon la revendication 1, caractérisé en ce que la portion avant (25) est telle que sa surface supérieure (6) est moins large que dans la partie centrale (17) et est limitée par les deux arêtes latérales qui sont parallèles (7a, 8a - 7r, 8r).2. Ski according to claim 1, characterized in that the front portion (25) is such that its upper surface (6) is narrower than in the central part (17) and is limited by the two lateral edges which are parallel ( 7a, 8a - 7r, 8r). 3. Ski selon la revendication 1 ou 2, caractérisé en ce que la portion arrière (22) est telle que sa surface supérieure (6) est moins large que dans la partie centrale (17) et est limitée par les deux arêtes latérales qui sont parallèles (7a, 8a - 7r, 8r).3. Ski according to claim 1 or 2, characterized in that the rear portion (22) is such that its upper surface (6) is narrower than in the central part (17) and is limited by the two lateral edges which are parallel (7a, 8a - 7r, 8r). 4. Ski selon la revendication 3, caractérisé en ce que la largeur (la) de la surface supérieure (6) de la portion avant (25) est égale à la largeur (Ir) de la surface supérieure (6) de la portion arrière (22).4. Ski according to claim 3, characterized in that the width (la) of the upper surface (6) of the front portion (25) is equal to the width (Ir) of the upper surface (6) of the rear portion (22). 5. Ski selon la revendication 3, caractérisé en ce que la largeur (la) de la surface supérieure (6) de la portion avant (25) est différente de la largeur (Ir) de la surface supérieure (6) de la portion arrière (22).5. Ski according to claim 3, characterized in that the width (la) of the upper surface (6) of the front portion (25) is different from the width (Ir) of the upper surface (6) of the rear portion (22). 6. Ski selon la revendication 5, caractérisé en ce que la largeur (la) de la surface supérieure (6) de la portion avant (25) est supérieure à la largeur (Ir) de la surface supérieure (6) de la portion arrière (22).6. Ski according to claim 5, characterized in that the width (la) of the upper surface (6) of the front portion (25) is greater than the width (Ir) of the upper surface (6) of the rear portion (22). 7. Ski selon la revendication 5, caractérisé en ce que la largeur (la) de la surface supérieure (6) de la portion avant (25) est inférieure à la largeur (Ir) de la surface supérieure (6) de la portion arrière (22).7. Ski according to claim 5, characterized in that the width (la) of the upper surface (6) of the front portion (25) is less than the width (Ir) of the upper surface (6) of the rear portion (22). 8. Ski selon l'une quelconque des revendications précédentes, caractérisé en ce que dans les parties arrière (20) et avant (18), les faces latérales (9, 10) sont inclinées pour converger vers le haut.8. Ski according to any one of the preceding claims, characterized in that in the rear (20) and front (18) parts, the lateral faces (9, 10) are inclined to converge upwards. 9. Ski selon la revendication 8, caractérisé en ce que l'angle d'inclinaison varie de façon continue de telle sorte que ledit angle d'inclinaison (A) diminue progressivement du centre vers les extrémités.9. Ski according to claim 8, characterized in that the inclination angle varies continuously so that said inclination angle (A) gradually decreases from the center towards the ends. 10. Ski selon l'une quelconque des revendications précédentes, caractérisé en ce qu'il est constitué par un noyau (34) disposé entre deux renforts, au moins un renfort supérieur (31) et au moins un renfort inférieur (40).10. Ski according to any one of the preceding claims, characterized in that it is constituted by a core (34) disposed between two reinforcements, at least one upper reinforcement (31) and at least one lower reinforcement (40). 11. Ski selon la revendication 10, caractérisé en ce que le renfort supérieur a la forme d'un U renversé et comprend une paroi supérieure prolongée de chaque côté vers le bas par une paroi latérale s'étendant vers le bas.11. Ski according to claim 10, characterized in that the upper reinforcement has the shape of an inverted U and comprises an upper wall extended on each side downwards by a side wall extending downwards.
EP92118714A 1991-12-13 1992-11-02 Upper ski surface with variable width Withdrawn EP0546309A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9115831 1991-12-13
FR9115831A FR2684886B1 (en) 1991-12-13 1991-12-13 SKI WITH TOP VARIABLE WIDTH.

Publications (1)

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EP0546309A1 true EP0546309A1 (en) 1993-06-16

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EP92118714A Withdrawn EP0546309A1 (en) 1991-12-13 1992-11-02 Upper ski surface with variable width

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US (1) US5335931A (en)
EP (1) EP0546309A1 (en)
JP (1) JPH0698209B2 (en)
FR (1) FR2684886B1 (en)

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FR2703257A1 (en) * 1993-04-01 1994-10-07 Rossignol Sa Snowboard with improved profile
FR2722418A1 (en) * 1994-07-13 1996-01-19 Salomon Sa ALPINE SKI IN SHAPE AND IMPROVED PROFILE
FR2740692A1 (en) * 1995-11-03 1997-05-09 Skis Lacroix & Co Sa SKI IN THE FORM OF A NON-RECTANGULAR SECTION
WO1999043397A1 (en) * 1998-02-24 1999-09-02 K-2 Corporation Ski board with geometrically controlled torsion and flex
WO2001054777A1 (en) * 2000-01-28 2001-08-02 Salomon S.A. Gliding board for snow surfing

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FR2703596B1 (en) * 1993-04-08 1995-07-07 Salomon Sa SNOWBOARD, ESPECIALLY SKIING FOR ALPINE SKIING.
FR2705905B1 (en) * 1993-06-02 1995-07-07 Rossignol Sa Advanced profile ski.
USD418545S (en) * 1997-05-01 2000-01-04 Donald Cassel High strength snowboard
EP0937485A3 (en) * 1998-02-24 2002-07-24 Franz Völkl GmbH &amp; Co. Ski und Tennis Sportartikelfabrik KG Snowboard, in particular a ski
US6928027B2 (en) * 2003-04-11 2005-08-09 Qualcomm Inc Virtual dual-port synchronous RAM architecture
US7690674B2 (en) * 2006-08-10 2010-04-06 Armada Skis, Inc. Snow riding implement
FR2926735B1 (en) * 2008-01-25 2010-03-26 Salomon Sa ALPINE SKI WITH MEANS OF ADJUSTMENT
FR2939323B1 (en) * 2008-12-08 2011-03-25 Salomon Sas ALPINE SKI WITH CONTROLLED FLEXION
JP5442870B2 (en) * 2009-09-25 2014-03-12 ザ バートン コーポレーション Sliding board with modified bending properties in adjacent binding attachment area
SI23531B (en) * 2010-11-15 2019-06-28 Elan, D.O.O. Ski with asymmetric characteristics
US9138629B2 (en) * 2013-03-15 2015-09-22 Brian Rosenberger Rib-stiffened sports board
EP3045212B1 (en) * 2015-01-19 2019-06-12 FLISEK razvoj, proizvodnja in trgovina z izdelki za sport d.o.o. Ski edge and sidewall cross section profile

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FR2618077B1 (en) * 1987-07-15 1989-11-17 Salomon Sa SKI WITH CONVERGENT SUPERIOR FACE
FR2618078B1 (en) * 1987-07-15 1994-04-01 Salomon Sa DIVERGENT SUPERIOR SKIING
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FR2598929A1 (en) * 1986-05-23 1987-11-27 Salomon Sa PROFILE SKIING
FR2598932A1 (en) * 1986-05-23 1987-11-27 Salomon Sa DISSYMMETRIC PROFILE SKIING

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2703257A1 (en) * 1993-04-01 1994-10-07 Rossignol Sa Snowboard with improved profile
FR2722418A1 (en) * 1994-07-13 1996-01-19 Salomon Sa ALPINE SKI IN SHAPE AND IMPROVED PROFILE
FR2740692A1 (en) * 1995-11-03 1997-05-09 Skis Lacroix & Co Sa SKI IN THE FORM OF A NON-RECTANGULAR SECTION
WO1997017113A1 (en) * 1995-11-03 1997-05-15 Surfpolitix Europe Profiled ski having a non-rectangular cross-section
WO1999043397A1 (en) * 1998-02-24 1999-09-02 K-2 Corporation Ski board with geometrically controlled torsion and flex
WO2001054777A1 (en) * 2000-01-28 2001-08-02 Salomon S.A. Gliding board for snow surfing
FR2804335A1 (en) * 2000-01-28 2001-08-03 Salomon Sa SLIDING BOARD FOR SURFING SNOW PRACTICES
US6481741B1 (en) 2000-01-28 2002-11-19 Salomon S.A. Snowboard

Also Published As

Publication number Publication date
JPH05261174A (en) 1993-10-12
FR2684886A1 (en) 1993-06-18
US5335931A (en) 1994-08-09
FR2684886B1 (en) 1994-04-01
JPH0698209B2 (en) 1994-12-07

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