EP1232774B1 - Snowglider - Google Patents

Snowglider Download PDF

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Publication number
EP1232774B1
EP1232774B1 EP02356020A EP02356020A EP1232774B1 EP 1232774 B1 EP1232774 B1 EP 1232774B1 EP 02356020 A EP02356020 A EP 02356020A EP 02356020 A EP02356020 A EP 02356020A EP 1232774 B1 EP1232774 B1 EP 1232774B1
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EP
European Patent Office
Prior art keywords
board
gliding
recess
lateral
recesses
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
EP02356020A
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German (de)
French (fr)
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EP1232774A1 (en
Inventor
Henri-Charles Deborde
Alain Zanco
Milena Stefanova
Jacques Fagot
Michel Echevin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Skis Rossignol SA
Original Assignee
Skis Rossignol SA
Rossignol SA
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Publication of EP1232774A1 publication Critical patent/EP1232774A1/en
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Publication of EP1232774B1 publication Critical patent/EP1232774B1/en
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    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C5/00—Skis or snowboards
    • A63C5/04—Structure of the surface thereof

Definitions

  • the invention relates to the field of snow sliding sports, and more especially in downhill skiing. It relates more specifically to alpine skis whose upper face at the level of the skate zone is not totally flat, but on the contrary has lateral recesses, at the level of the upper edges.
  • an alpine ski in its skating zone has at least one lower sliding surface composed of a sole edged with edges metal. It also has an upper face substantially parallel to the lower sliding surface on either side of the median longitudinal plane of the ski.
  • the structure contains elements of side reinforcements that form at least a portion of the side faces of the ski. These reinforcing elements are usually apparent and form the songs skiing on all or part of its thickness. These reinforcing elements are located squarely on the edges, and more precisely of the most thick that adjoins the gliding sole, also called "cord”. Thanks to these reinforcement elements, the supports exerted on the upper face of the ski are more effectively transmitted on the edges and thus allow a better grip.
  • the structure in a second family, includes a section shell trapezoidal general that connects a square to another by styling the elements constituent parts of the structure.
  • the ski described in this document presents a step of height between the central part of its upper face and the lateral zones. This recess forms a recess made above the edge.
  • This recess has a depth which is substantially constant over its entire length, so that it has a bottom substantially parallel to the outsole glide.
  • the object of the invention is to provide a ski which has a geometry derived from that described above, and whose dynamic behavioral qualities be superior, especially as regards the sequence of different phases of a turn.
  • this plate is characterized in that the bottom of the recesses form a slope inclined longitudinally with respect to the lower sliding surface and the upper face.
  • the characteristic recesses form a recessed area at the interior of the lateral faces which therefore have a reduced height and variable at level of these recesses.
  • the board therefore presents at this level a decrease continues its thickness. This induces a variation of partial and localized stiffness in the area of the recess. Therefore, the behavior of the board is modified according to the location of the point of application of the forces exerted the skier, this location depending in particular strongly on the position that the skier adopts during the different phases of a turn.
  • the characteristic recesses can take different forms.
  • the lower part of the recesses that is to say their bottom, can be inclined either towards the front and the bottom of the ski, or towards the back and the bottom of the ski.
  • the inclination of the longitudinal section in the lateral face support pressure towards the front of the ski during the turn, since the partial stiffness of the Skiing is more important at the front than at the back of the recess. This improves the turning because cornering when the turn is triggered is no longer effective.
  • the inclined slope of the bottom of the recesses may also have various geometries.
  • the lower part of the recesses may have a slope which is either substantially constant over most of its length, or variable over the length of the recess.
  • the inclined bottom of the recess can be either plane or curve.
  • the lateral faces comprise side areas that may include different materials, and this in front and back of the characteristic recess.
  • the choice of different materials makes it possible to to confer different mechanical properties on the zones directly ahead and behind the characteristic recess.
  • one of the materials present in one of the lateral zones may be of a viscoelastic nature, so as to confer damping properties at the lateral area in question.
  • one of the materials present in the lateral zones may be of elastic nature, so as to impart dynamisation properties to the zone lateral in question.
  • the slots can have a profile in V or Y, or a profile rectangular, or even a combination of these different geometries.
  • one wishes to obtain one locates the zone having damping properties either at the front or at the rear of the recess, and the area having energizing properties either at the back or at the front of the the recess.
  • the characteristic recesses may have a width, measured transversely to the board, which is variable over the length of the recess. We can thus optimize the variation of partial stiffness of the board.
  • the gliding board may comprise several recesses made on the same side of the board. These recesses, 2 in number or 3, may have inclinations oriented in the same direction, or in a preferred form in opposite directions.
  • the board has two recesses on each side.
  • the recess at the front shows a tilt down and forward.
  • the recess located at the rear presents for its part, an inclination directed upwards and forwards (or so equivalent backwards and downwards).
  • Such a board can in particular be equipped with a platform of raising the attachment, which has side portions whose edge lower contact with or against the bottom of the recess, with a slope inclined complementary to that of the bottom of the recess.
  • the invention relates to a ski which has a particularity of structure in its skate zone. More precisely, as illustrated in FIG. (1) comprises a shoe area (2), a heel area (3), and a spatula area (4).
  • the ski has an upper face (5) which is intended to receive the stop and the heel of the fixation, possibly by via an elevation platform.
  • This upper face (5) is substantially flat on both sides of the median longitudinal plane of the ski.
  • the ski (1) On each side, the ski (1) has a side face (10).
  • This side face (10) extends from the edges (7) on the lower edges of the ski to the upper face (5) of the ski. More precisely, the lateral face (10) extends to cord (8) of the edges, which constitutes the portion of the edges (7) coming directly touch the snow and form the lower edge of the board.
  • these lateral faces (10) comprise recesses (12) opening on the upper face (5).
  • These recesses (12) form a hollow zone (13) inside the lateral faces (10), as illustrated in FIG. 2.
  • This recess (12) is delimited principally by three surfaces, namely a first surface (15) substantially vertical, and whose upper part joined the upper face (5) of the ski.
  • the recess (12) also has a bottom (16) which forms an inclined slope with respect to the sliding surface (9) and the upper face of the ski (5).
  • This inclined bottom (16) is extended at the rear by a portion (17) which connects to the upper face of the ski (5) at the rear of the recess (12).
  • the deepest zone (18) of the recess forms the boundary between the slope inclined (16) and the portion (17) of connection to the upper face (5).
  • the slope of the inclined bottom (16) of the recess (12), measured by relative to the sliding surface (9) is between 1 and 20 °, and preferentially between 2 and 5 °.
  • the thickness e1 of the board, measured at its lateral faces, substantially at the most bottom (18) of the recess (12) is smaller than the thickness e2 measured further forward of the recess.
  • the thickness e1 corresponds to the thickness of the portion (24) of structure extending to the edge of the board, which is added the thickness of the cord (8) of the edges (7), in which position the sole (25).
  • the thickness e 2 of the board corresponds substantially to the maximum height of the internal structure (23) of the board, in the lateral areas.
  • the board comprises in its internal structure an upper reinforcement (28) that marries different shapes along of the board and which extends more or less laterally, as shown in comparison of Figures 4 and 5.
  • the invention is not limited to the embodiments alone illustrated, but also covers variants in which the inclined slope of the bottom of the recess is oriented in the opposite direction, that is to say towards the back and to the top.
  • the deepest area of the recess is located rather in front of the latter, while in the illustrated figures, this area most deep (18) is located at the rear of the recess (12).
  • the invention also covers other variants in which the width of the recesses is not constant, but varies over the length of the recess.
  • the invention is not limited to the form illustrated in FIG. which the bottom (16) of the recess (12) is substantially flat, but it embraces on the contrary all variants concerning the geometry of the bottom of the recess, and for example a curved bottom, since the bottom of this recess is not parallel to the sliding surface and to the upper face of the ski.
  • the board also has four bosses (11a, 11b, 11c, 11d) disposed forward and backward of each obviously (12). These optional bosses postpone the support of the skating zone in the direction of spatula and heel areas.
  • the ski according to the invention has, in forward and backward of the recess (12), lateral zones which include different materials.
  • the ski comprises in front of the recess (12) a spindle (30) including a viscoelastic material.
  • this spindle (30) can be inserted between the edges (7) and the lower part of the hull.
  • this spindle (30) of viscoelastic material confers damping properties at this localized area of the board. In this way, some vibrations passing through this zone is absorbed by this zone (30).
  • this spindle (30) absorbs some of the energy required to bend the ski in the zone in which it is implanted, which modifies the local stiffness of the ski. In the where this spindle (30) is implanted as in the form illustrated in FIGS. 6 and 7 in front of the recess, this modified partial stiffness facilitates entry into the turn, and improves comfort.
  • the lateral zone (37) of the ski presents rear of the recess, different slots (35) filled with an elastic material (36). These slots (35) are located between the lower part of the shell and the edges (7). These different slots (35) are hollowed out slightly towards the back and the top of the board.
  • these slots have a generally U-shaped shape, having two parallel main walls, but the invention also covers variants in which these slots have a section V or Y. These two geometries or others not shown can be mixed inside a same set of slots.
  • the material used to fill the slots (35) can be an elastic material such as rubber or polyurethane elastomer.
  • the walls of the same slot (35) tend to deviate by stretching the material (36) that they trap. This material (36) therefore tends to oppose to this deformation.
  • the material (36) tends to bring the walls of the slots (35) and thus a return to a faster position of the board towards its initial curvature.
  • initial curvature we mean the curvature of the board when the ski is loaded solely by the weight of the skier, statically.
  • the different slots (35) can be filled with a material which also has viscoelastic properties, such as VIBTENE®
  • the area including the plurality of slots has properties damping.
  • the board comprises a zone (34) comprising slots parallel disposed forward of the recess (12).
  • This board includes also a spindle (38) disposed at the rear of the recess (12).
  • the ski can also include two different time zones, being located at the front of the recess, the other being located at the rear.
  • the board has two recesses (53, 54) made on each of the sides of the board.
  • Each of these recesses (53, 54) is of similar design to those described above.
  • the bottom (55) of the front recess (53) has a downward and forward inclination.
  • the bottom (56) of the rear recess (54) has an inclination towards the up and forward (or equivalently down and back).
  • the length (l) of the portion (57) separating the two recesses (53, 54) is variable according to the slopes and the lengths of the recesses (53, 54). She may be reduced to a zero value, so that these two recesses are then contiguous.
  • the gliding board according to the invention has many advantages, including a distribution of stiffness in the pad area which allows to concentrate the maximum power at the level of edges, and therefore the maximum grip of the ski underfoot when triggering of the turn.

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  • Road Paving Structures (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Polishing Bodies And Polishing Tools (AREA)
  • Laminated Bodies (AREA)
  • Rotary Pumps (AREA)

Abstract

A board for gliding for downhill skiing, of "shell" type construction having, at lest in an underfoot zone a lower gliding surface composed of a sole plate bordered by metal edges and a topsheet substantially parallel to the lower gliding surface, on either side of the center longitudinal plane of the board. The underfoot zone further includes lateral faces extending between the metal edges and the topsheet, the lateral faces having recesses located below the plane of the topsheet and opening out in the latter. The base of the recess forms a slope that is inclined longitudinally relative to the lower gliding surface and the topsheet.

Description

Domaine techniqueTechnical area

L'invention se rattache au domaine des sports de glisse sur neige, et plus particulièrement au ski alpin. Elle concerne plus spécifiquement les skis alpins dont la face supérieure au niveau de la zone patin n'est pas totalement plane, mais au contraire possède des évidements latéraux, au niveau des arêtes supérieures.The invention relates to the field of snow sliding sports, and more especially in downhill skiing. It relates more specifically to alpine skis whose upper face at the level of the skate zone is not totally flat, but on the contrary has lateral recesses, at the level of the upper edges.

Techniques antérieuresPrevious techniques

De façon générale, dans sa zone patin un ski alpin possède au moins une surface inférieure de glissement composée d'une semelle bordée de carres métalliques. Il comporte également une face supérieure sensiblement parallèle à la surface inférieure de glissement, de part et d'autre du plan longitudinal médian du ski.In general, in its skating zone an alpine ski has at least one lower sliding surface composed of a sole edged with edges metal. It also has an upper face substantially parallel to the lower sliding surface on either side of the median longitudinal plane of the ski.

Il existe deux familles principales de structures permettant de réaliser les skis alpins actuels.There are two main families of structures for making skis current alpines.

Dans une première famille, la structure comporte des éléments de renforcement latéraux qui forment au moins une partie des faces latérales du ski. Ces éléments de renforcement sont généralement apparents et forment les chants du ski sur toute ou partie de son épaisseur. Ces éléments de renforcement sont situés à l'aplomb des carres, et plus précisément de la partie des carres la plus épaisse qui jouxte la semelle de glisse, également appelée "cordon". Grâce à ces éléments de renforcement, les appuis exercés sur la face supérieure du ski sont plus efficacement transmis sur les carres et donc permettent un meilleur accrochage.In a first family, the structure contains elements of side reinforcements that form at least a portion of the side faces of the ski. These reinforcing elements are usually apparent and form the songs skiing on all or part of its thickness. These reinforcing elements are located squarely on the edges, and more precisely of the most thick that adjoins the gliding sole, also called "cord". Thanks to these reinforcement elements, the supports exerted on the upper face of the ski are more effectively transmitted on the edges and thus allow a better grip.

Dans une seconde famille, la structure comprend une coque de section générale trapézoïdale qui relie une carre à l'autre en coiffant les éléments constitutifs de la structure.In a second family, the structure includes a section shell trapezoidal general that connects a square to another by styling the elements constituent parts of the structure.

On a décrit dans le document EP 0 744 196, correspondant au document US 5 944 336 une planche de glisse présentant une telle structure coque, et qui possède également des évidements réalisés au niveau des faces latérales s'étendant entre les carres et la face supérieure du ski. It has been described in EP 0 744 196, corresponding to the document US 5 944 336 a gliding board having such a shell structure, and which also has recesses made at the side faces extending between the edges and the upper face of the ski.

Plus précisément, le ski décrit dans ce document présente un décrochement de hauteur entre la partie centrale de sa face supérieure et les zones latérales. Ce décrochement forme un évidement réalisé au-dessus de la carre.More precisely, the ski described in this document presents a step of height between the central part of its upper face and the lateral zones. This recess forms a recess made above the edge.

Cet évidement possède une profondeur qui est sensiblement constante sur toute sa longueur, de sorte qu'il possède un fond sensiblement parallèle à la semelle de glisse.This recess has a depth which is substantially constant over its entire length, so that it has a bottom substantially parallel to the outsole glide.

L'objectif de l'invention est de fournir un ski qui possède une géométrie dérivée de celle décrite ci-avant, et dont les qualités de comportement dynamique soient supérieures, notamment en ce qui concerne l'enchaínement des différentes phases d'un virage.The object of the invention is to provide a ski which has a geometry derived from that described above, and whose dynamic behavioral qualities be superior, especially as regards the sequence of different phases of a turn.

Exposé de l'inventionPresentation of the invention

L'invention concerne donc une planche de glisse destinée à la pratique du ski alpin qui, de façon connue, présente au moins dans la zone patin :

  • une surface inférieure de glissement composée d'une semelle bordée de carres métalliques ;
  • une face supérieure sensiblement parallèle à la surface inférieure de glissement de part et d'autre du plan longitudinal médian de la planche ;
  • des faces latérales s'étendant entre les carres métalliques et la face supérieure, ladite face latérale présentant des évidements situés en dessous du plan de la face supérieure et débouchant sur cette dernière.
The invention therefore relates to a gliding board for the practice of alpine skiing which, in a known manner, has at least in the pad area:
  • a lower sliding surface composed of a sole lined with metal edges;
  • an upper face substantially parallel to the lower sliding surface on either side of the median longitudinal plane of the board;
  • lateral faces extending between the metal edges and the upper face, said side face having recesses located below the plane of the upper face and opening on the latter.

Conformément à l'invention, cette planche se caractérise en ce que le fond des évidements forme une pente inclinée longitudinalement par rapport à la surface inférieure de glissement et à la face supérieure.According to the invention, this plate is characterized in that the bottom of the recesses form a slope inclined longitudinally with respect to the lower sliding surface and the upper face.

Autrement dit, les évidements caractéristiques forment une zone en creux à l'intérieur des faces latérales qui présentent donc une hauteur réduite et variable au niveau de ces évidements. La planche présente donc à ce niveau une diminution continue de son épaisseur. Cela induit une variation de raideur partielle et localisée dans la zone de l'évidement. Par conséquent, le comportement de la planche est modifié en fonction de la localisation du point d'application des forces exercées par le skieur, cette localisation dépendant notamment fortement de la position qu'adopte le skieur pendant les différentes phases d'un virage. In other words, the characteristic recesses form a recessed area at the interior of the lateral faces which therefore have a reduced height and variable at level of these recesses. The board therefore presents at this level a decrease continues its thickness. This induces a variation of partial and localized stiffness in the area of the recess. Therefore, the behavior of the board is modified according to the location of the point of application of the forces exerted the skier, this location depending in particular strongly on the position that the skier adopts during the different phases of a turn.

Les évidements caractéristiques peuvent épouser différentes formes.The characteristic recesses can take different forms.

Ainsi, la partie inférieure des évidements, c'est-à-dire leur fond, peut être inclinée soit vers l'avant et le bas du ski, soit vers l'arrière et le bas du ski. Dans ce dernier cas, l'inclinaison de la coupe longitudinale dans la face latérale reporte la pression d'appui vers l'avant du ski durant le virage, puisque la raideur partielle du ski est plus importante à l'avant qu'à l'arrière de l'évidement. Ceci améliore donc la conduite du virage car la prise de carres lors du déclenchement du virage est plus efficace.Thus, the lower part of the recesses, that is to say their bottom, can be inclined either towards the front and the bottom of the ski, or towards the back and the bottom of the ski. In this last case, the inclination of the longitudinal section in the lateral face support pressure towards the front of the ski during the turn, since the partial stiffness of the Skiing is more important at the front than at the back of the recess. This improves the turning because cornering when the turn is triggered is no longer effective.

La pente inclinée du fond des évidements peut également présenter diverses géométries. Ainsi, la partie inférieure des évidements peut présenter une pente qui est soit sensiblement constante sur la majeure partie de sa longueur, soit encore variable sur la longueur de l'évidement. Autrement dit, le fond incliné de l'évidement peut être soit plan, soit courbe.The inclined slope of the bottom of the recesses may also have various geometries. Thus, the lower part of the recesses may have a slope which is either substantially constant over most of its length, or variable over the length of the recess. In other words, the inclined bottom of the recess can be either plane or curve.

Selon une autre caractéristique de l'invention, les faces latérales comportent des zones latérales qui peuvent inclure des matériaux différents, et ce en avant et en arrière de l'évidement caractéristique. Le choix de matériaux différents permet de conférer des propriétés mécaniques différentes aux zones directement en avant et en arrière de l'évidement caractéristique.According to another characteristic of the invention, the lateral faces comprise side areas that may include different materials, and this in front and back of the characteristic recess. The choice of different materials makes it possible to to confer different mechanical properties on the zones directly ahead and behind the characteristic recess.

Ainsi, dans une première forme de réalisation, un des matériaux présents dans une des zones latérales peut être de nature viscoélastique, de manière à conférer des propriétés d'amortissement à la zone latérale en question.Thus, in a first embodiment, one of the materials present in one of the lateral zones may be of a viscoelastic nature, so as to confer damping properties at the lateral area in question.

A l'inverse, un des matériaux présents dans les zones latérales peut être de nature élastique, de manière à conférer des propriétés de dynamisation à la zone latérale en question.Conversely, one of the materials present in the lateral zones may be of elastic nature, so as to impart dynamisation properties to the zone lateral in question.

Ces matériaux particuliers peuvent être incorporés dans les zones latérales selon des géométries différentes. Ainsi, lorsqu'il s'agit par exemple de matériau viscoélastique, celui-ci peut être incorporé dans le ski sous forme d'un fuseau disposé entre la partie inférieure de la coque et la carre. These particular materials can be incorporated in the lateral zones according to different geometries. So, when it comes for example of material viscoelastic, it can be incorporated into the ski in the form of a spindle disposed between the lower part of the shell and the edge.

Lorsqu'il s'agit d'un matériau essentiellement élastique, ce dernier peut former plusieurs éléments localisés à l'intérieur de fentes ménagées dans la zone latérale en question, entre la partie inférieure de la coque et la carre. De la sorte, lorsque la planche se cintre, les différentes fentes ont tendance à s'ouvrir en étirant le matériau qu'elles renferment. Lorsque la cause du cintrage disparaít, les éléments élastiques qui se situent à l'intérieur des fentes, exercent un effort qui a tendance à refermer la fente pour qu'elle retrouve sa géométrie initiale. Cette accélération de retour en position se traduit donc par une dynamisation de la planche qui favorise une pratique plus sportive du ski.When it is a material essentially elastic, the latter can form several elements located inside slots in the lateral zone in question, between the lower part of the hull and the edge. In this way, when board hinges, the different slots tend to open by stretching the material they contain. When the cause of the bending disappears, the elements elastics which are located inside the slots, exert an effort which tends to close the slot so that it regains its original geometry. This acceleration of return to position therefore results in a dynamisation of the board which favors a more sporty practice of skiing.

En pratique, les fentes peuvent présenter un profil en V ou en Y, ou un profil rectangulaire, ou bien encore une combinaison de ces différentes géométries.In practice, the slots can have a profile in V or Y, or a profile rectangular, or even a combination of these different geometries.

Selon le type de comportement que l'on souhaite obtenir, on localise la zone présentant des propriétés amortissantes soit à l'avant, soit à l'arrière de l'évidement, et la zone présentant des propriétés de dynamisation soit à l'arrière, soit à l'avant de l'évidement.Depending on the type of behavior one wishes to obtain, one locates the zone having damping properties either at the front or at the rear of the recess, and the area having energizing properties either at the back or at the front of the the recess.

Dans une forme particulière d'exécution, les évidements caractéristiques peuvent présenter une largeur, mesurée transversalement à la planche, qui est variable sur la longueur de l'évidement. On peut ainsi optimiser la variation de raideur partielle de la planche.In a particular embodiment, the characteristic recesses may have a width, measured transversely to the board, which is variable over the length of the recess. We can thus optimize the variation of partial stiffness of the board.

Dans certaines variantes, la planche de glisse peut comporter plusieurs évidements réalisés du même côté de la planche. Ces évidements, au nombre de 2 ou 3, peuvent présenter des inclinaisons orientées dans le même sens, ou dans une forme préférée dans des sens opposés.In certain variants, the gliding board may comprise several recesses made on the same side of the board. These recesses, 2 in number or 3, may have inclinations oriented in the same direction, or in a preferred form in opposite directions.

Ainsi, dans un mode de réalisation particulier, la planche possède deux évidements de chacun des côtés. L'évidement situé à l'avant présente une inclinaison orientée vers le bas et vers l'avant. L'évidement situé à l'arrière présente quant à lui une inclinaison orientée vers le haut et vers l'avant (ou de façon équivalente vers l'arrière et vers le bas). Thus, in a particular embodiment, the board has two recesses on each side. The recess at the front shows a tilt down and forward. The recess located at the rear presents for its part, an inclination directed upwards and forwards (or so equivalent backwards and downwards).

Une telle planche peut notamment être équipée d'une plate-forme de rehaussement de la fixation, qui comporte des portions latérales dont le bord inférieur vient en contact ou en regard du fond de l'évidement, avec une pente inclinée complémentaire de celle du fond de l'évidement.Such a board can in particular be equipped with a platform of raising the attachment, which has side portions whose edge lower contact with or against the bottom of the recess, with a slope inclined complementary to that of the bottom of the recess.

Description sommaire des figuresBrief description of the figures

La manière de réaliser l'invention ainsi que les avantages qui en découlent ressortiront bien de la description des modes de réalisation qui suivent, à l'appui des figures annexées dans lesquelles :

  • La figure 1 est une vue en perspective sommaire d'un ski conforme à l'invention.
  • La figure 2 est une vue de côté de détail du ski de la figure 1, montrée dans la zone caractéristique de l'invention.
  • La figure 3 est une vue de dessus de la figure 2.
  • Les figures 4 et 5 sont des coupes respectivement selon les plans IV-IV' et V-V' de la figure 3.
  • La figure 6 est une vue en perspective sommaire d'un ski réalisé selon une variante de perfectionnement.
  • La figure 7 est une vue de côté de détail du ski de la figure 6, montré dans la zone patin.
  • La figure 8 est une vue en perspective sommaire d'une autre variante d'exécution.
  • La figure 9 est une vue de côté d'une autre variante d'exécution.
    • The manner of carrying out the invention as well as the advantages which result therefrom will emerge clearly from the description of the embodiments which follow, in support of the appended figures in which:
  • Figure 1 is a summary perspective view of a ski according to the invention.
  • Figure 2 is a detail side view of the ski of Figure 1, shown in the characteristic area of the invention.
  • FIG. 3 is a view from above of FIG. 2.
  • Figures 4 and 5 are sections respectively along the planes IV-IV 'and VV' of Figure 3.
  • Figure 6 is a summary perspective view of a ski made according to a variant of improvement.
  • Figure 7 is a detail side view of the ski of Figure 6, shown in the pad area.
  • Fig. 8 is a summary perspective view of another alternative embodiment.
  • Figure 9 is a side view of another alternative embodiment.

    • Manière de réaliser l'inventionWay of realizing the invention

    Comme déjà dit, l'invention concerne un ski qui possède une particularité de structure dans sa zone patin. Plus précisément, comme illustré à la figure 1, le ski (1) comprend une zone patin (2), une zone talon (3), et une zone spatule (4).As already stated, the invention relates to a ski which has a particularity of structure in its skate zone. More precisely, as illustrated in FIG. (1) comprises a shoe area (2), a heel area (3), and a spatula area (4).

    Dans la zone patin (2), le ski comporte une face supérieure (5) qui est destinée à recevoir la butée et la talonnière de la fixation, éventuellement par l'intermédiaire d'une plate-forme de rehaussement. Cette face supérieure (5) est sensiblement plane de part et d'autre du plan longitudinal médian du ski. In the skid zone (2), the ski has an upper face (5) which is intended to receive the stop and the heel of the fixation, possibly by via an elevation platform. This upper face (5) is substantially flat on both sides of the median longitudinal plane of the ski.

    De chaque côté, le ski (1) présente une face latérale (10). Cette face latérale (10) s'étend depuis les carres (7) présentes sur les arêtes inférieures du ski jusqu'à la face supérieure (5) du ski. Plus précisément la face latérale (10) s'étend jusqu'au cordon (8) des carres, qui constitue la portion des carres (7) venant directement en contact de la neige et forme l'arête inférieure de la planche.On each side, the ski (1) has a side face (10). This side face (10) extends from the edges (7) on the lower edges of the ski to the upper face (5) of the ski. More precisely, the lateral face (10) extends to cord (8) of the edges, which constitutes the portion of the edges (7) coming directly touch the snow and form the lower edge of the board.

    Conformément à l'invention, ces faces latérales (10) comportent des évidements (12) débouchant sur la face supérieure (5). Ces évidements (12) forment une zone en creux (13) à l'intérieur des faces latérales (10), comme illustré à la figure 2. Cet évidement (12) est délimité de façon principale par trois surfaces, à savoir une première surface (15) sensiblement verticale, et dont la partie haute rejoint la face supérieure (5) du ski. L'évidement (12) comporte également un fond (16) qui forme une pente inclinée par rapport à la surface de glissement (9) et à la face supérieure du ski (5). Ce fond incliné (16) se prolonge à l'arrière par une portion (17) qui se raccorde à la face supérieure du ski (5) à l'arrière de l'évidement (12).According to the invention, these lateral faces (10) comprise recesses (12) opening on the upper face (5). These recesses (12) form a hollow zone (13) inside the lateral faces (10), as illustrated in FIG. 2. This recess (12) is delimited principally by three surfaces, namely a first surface (15) substantially vertical, and whose upper part joined the upper face (5) of the ski. The recess (12) also has a bottom (16) which forms an inclined slope with respect to the sliding surface (9) and the upper face of the ski (5). This inclined bottom (16) is extended at the rear by a portion (17) which connects to the upper face of the ski (5) at the rear of the recess (12).

    La zone (18) la plus profonde de l'évidement forme la limite entre la pente inclinée (16) et la portion (17) de raccordement à la face supérieure (5).The deepest zone (18) of the recess forms the boundary between the slope inclined (16) and the portion (17) of connection to the upper face (5).

    En pratique, la pente du fond incliné (16) de l'évidement (12), mesurée par rapport à la surface de glisse (9) est comprise entre 1 et 20°, et préférentiellement entre 2 et 5°.In practice, the slope of the inclined bottom (16) of the recess (12), measured by relative to the sliding surface (9) is between 1 and 20 °, and preferentially between 2 and 5 °.

    Ainsi, comme illustré en comparant les figures 4 et 5 constituant des coupes selon les plans respectivement IV-IV' et V-V' de la figure 3, l'épaisseur e1 de la planche, mesurée au niveau de ses faces latérales, sensiblement au niveau le plus bas (18) de l'évidement (12), est inférieure à l'épaisseur e2 mesurée plus en avant de l'évidement.Thus, as illustrated by comparing Figures 4 and 5 constituting sections according to the plans respectively IV-IV 'and V-V' of Figure 3, the thickness e1 of the board, measured at its lateral faces, substantially at the most bottom (18) of the recess (12) is smaller than the thickness e2 measured further forward of the recess.

    Dans le premier cas, illustré à la figure 4, l'épaisseur e1 correspond à l'épaisseur de la portion (24) de structure s'étendant jusqu'au bord de la planche, à laquelle se rajoute l'épaisseur du cordon (8) des carres (7), dans lesquelles se positionne la semelle (25). In the first case, illustrated in FIG. 4, the thickness e1 corresponds to the thickness of the portion (24) of structure extending to the edge of the board, which is added the thickness of the cord (8) of the edges (7), in which position the sole (25).

    Comme illustré à la figure 5, et plus en avant de l'évidement (12), l'épaisseur e2 de la planche correspond sensiblement à la hauteur maximale de la structure interne (23) de la planche, dans les zones latérales.As illustrated in Figure 5, and further forward of the recess (12), the thickness e 2 of the board corresponds substantially to the maximum height of the internal structure (23) of the board, in the lateral areas.

    Dans les formes illustrées aux figures 4 et 5, la planche comprend dans sa structure interne un renfort supérieur (28) qui épouse des formes différentes le long de la planche et qui s'étend plus ou moins latéralement, comme le montre la comparaison des figures 4 et 5.In the forms illustrated in FIGS. 4 and 5, the board comprises in its internal structure an upper reinforcement (28) that marries different shapes along of the board and which extends more or less laterally, as shown in comparison of Figures 4 and 5.

    Bien entendu, l'invention n'est pas limitée aux seules formes de réalisation illustrées, mais couvre également les variantes dans lesquelles la pente inclinée du fond de l'évidement est orientée dans le sens opposé, c'est-à-dire vers l'arrière et vers le haut. Dans ce cas, la zone la plus profonde de l'évidement est située plutôt en partie avant de ce dernier, alors que dans les figures illustrées, cette zone la plus profonde (18) est située plutôt à l'arrière de l'évidement (12).Of course, the invention is not limited to the embodiments alone illustrated, but also covers variants in which the inclined slope of the bottom of the recess is oriented in the opposite direction, that is to say towards the back and to the top. In this case, the deepest area of the recess is located rather in front of the latter, while in the illustrated figures, this area most deep (18) is located at the rear of the recess (12).

    L'invention couvre également d'autres variantes dans lesquelles la largeur des évidements n'est pas constante, mais variable sur la longueur de l'évidement.The invention also covers other variants in which the width of the recesses is not constant, but varies over the length of the recess.

    L'invention n'est pas non plus limitée à la forme illustrée à la figure 2 dans laquelle le fond (16) de l'évidement (12) est sensiblement plan, mais elle embrasse au contraire toutes les variantes concernant la géométrie du fond de l'évidement, et par exemple un fond courbe, dès lors que le fond de cet évidement n'est pas parallèle à la surface de glisse et à la face supérieure du ski.The invention is not limited to the form illustrated in FIG. which the bottom (16) of the recess (12) is substantially flat, but it embraces on the contrary all variants concerning the geometry of the bottom of the recess, and for example a curved bottom, since the bottom of this recess is not parallel to the sliding surface and to the upper face of the ski.

    Dans la forme illustrée à 1a figure 1, la planche possède également quatre bossages (11a,11b,11c,11d) disposés en avant et en arrière de chaque évidemment (12). Ces bossages optionnels reportent les appuis de la zone patin en direction des zones spatule et talon.In the form illustrated in Figure 1, the board also has four bosses (11a, 11b, 11c, 11d) disposed forward and backward of each obviously (12). These optional bosses postpone the support of the skating zone in the direction of spatula and heel areas.

    Selon un autre aspect de l'invention, le ski conforme à l'invention présente, en avant et en arrière de l'évidement (12), des zones latérales qui incluent des matériaux différents.According to another aspect of the invention, the ski according to the invention has, in forward and backward of the recess (12), lateral zones which include different materials.

    Ainsi, et comme illustré à la figure 6, le ski comprend en avant de l'évidement (12) un fuseau (30) incluant un matériau viscoélastique. Thus, and as illustrated in FIG. 6, the ski comprises in front of the recess (12) a spindle (30) including a viscoelastic material.

    Comme illustré à la figure 7, ce fuseau (30) peut être inséré entre les carres (7) et la partie inférieure de la coque.As illustrated in Figure 7, this spindle (30) can be inserted between the edges (7) and the lower part of the hull.

    La présence de ce fuseau (30) en matériau viscoélastique confère des propriétés amortissantes à cette zone localisée de la planche. De la sorte, une partie des vibrations transitant par cette zone est absorbée par ce fuseau (30). En outre, ce fuseau (30) absorbe une partie de l'énergie nécessaire au cintrage du ski dans la zone dans laquelle il est implanté, ce qui modifie la raideur locale du ski. Dans le cas où ce fuseau (30) est implanté comme dans la forme illustrée aux figures 6 et 7 en avant de l'évidement, cette raideur partielle modifiée facilite l'entrée dans le virage, et améliore le confort.The presence of this spindle (30) of viscoelastic material confers damping properties at this localized area of the board. In this way, some vibrations passing through this zone is absorbed by this zone (30). In addition, this spindle (30) absorbs some of the energy required to bend the ski in the zone in which it is implanted, which modifies the local stiffness of the ski. In the where this spindle (30) is implanted as in the form illustrated in FIGS. 6 and 7 in front of the recess, this modified partial stiffness facilitates entry into the turn, and improves comfort.

    Dans la forme illustrée à la figure 7, la zone latérale (37) du ski présente en arrière de l'évidement, différentes fentes (35) emplies d'un matériau élastique (36). Ces fentes (35) sont situées entre la partie inférieure de la coque et les carres (7). Ces différentes fentes (35) sont creusées en étant légèrement orientées vers l'arrière et le haut de la planche.In the form illustrated in FIG. 7, the lateral zone (37) of the ski presents rear of the recess, different slots (35) filled with an elastic material (36). These slots (35) are located between the lower part of the shell and the edges (7). These different slots (35) are hollowed out slightly towards the back and the top of the board.

    Dans la forme illustrée, ces fentes présentent une forme générale en U, comportant deux parois principales parallèles, mais l'invention couvre également les variantes dans lesquelles ces fentes possèdent une section en V ou en Y. Ces deux géométries ou d'autres non représentées peuvent être mixées à l'intérieur d'un même ensemble de fentes.In the illustrated form, these slots have a generally U-shaped shape, having two parallel main walls, but the invention also covers variants in which these slots have a section V or Y. These two geometries or others not shown can be mixed inside a same set of slots.

    Le matériau utilisé pour emplir les fentes (35) peut être un matériau élastique tel que du caoutchouc ou un élastomère de polyuréthanne. Dans ce cas, lorsque le ski se cintre, les parois d'une même fente (35) ont tendance à s'écarter en étirant le matériau (36) qu'elles emprisonnent. Ce matériau (36) a donc tendance à s'opposer à cette déformation. Lorsque la cause du cintrage disparaít, c'est-à-dire lorsque le ski se retrouve à plat notamment après l'impulsion donnée par le skieur pour déclencher le virage, le matériau (36) a tendance à provoquer le rapprochement des parois des fentes (35) et donc un retour en position plus rapide de la planche vers sa courbure initiale. Par courbure initiale, on entend la courbure de la planche lorsque le ski est chargé uniquement par le poids du skieur, de façon statique. The material used to fill the slots (35) can be an elastic material such as rubber or polyurethane elastomer. In this case, when the ski hinges, the walls of the same slot (35) tend to deviate by stretching the material (36) that they trap. This material (36) therefore tends to oppose to this deformation. When the cause of the bending disappears, that is to say when the ski is flat especially after the impetus given by the skier for triggering the turn, the material (36) tends to bring the walls of the slots (35) and thus a return to a faster position of the board towards its initial curvature. By initial curvature, we mean the curvature of the board when the ski is loaded solely by the weight of the skier, statically.

    Bien entendu, les différentes fentes (35) peuvent être remplies d'un matériau qui possède également des propriétés viscoélastiques, telles que le VIBTENE® Dans ce cas, la zone incluant la pluralité de fentes possède des propriétés amortissantes.Of course, the different slots (35) can be filled with a material which also has viscoelastic properties, such as VIBTENE® In this case, the area including the plurality of slots has properties damping.

    Bien entendu, l'invention couvre les différentes variantes de positionnement des zones amortissantes et dynamisantes décrites précédemment. Ainsi, comme illustré à la figure 8, la planche comporte une zone (34) comprenant des fentes parallèles disposées en avant de l'évidement (12). Cette planche comprend également un fuseau (38) disposé à l'arrière de l'évidement (12).Of course, the invention covers the various positioning variants damping and energizing zones described above. So, as illustrated in FIG. 8, the board comprises a zone (34) comprising slots parallel disposed forward of the recess (12). This board includes also a spindle (38) disposed at the rear of the recess (12).

    Dans certaines variantes, il est possible d'utiliser deux zones comportant des fentes telles que décrites précédemment, l'une de ces zones étant situées à l'avant de l'évidement, l'autre étant située à l'arrière.In certain variants, it is possible to use two zones comprising slots as described above, one of these areas being located at the front of the recess, the other being located at the back.

    De la même manière, le ski peut également inclure deux fuseaux différents, étant situés à l'avant de l'évidement, l'autre étant situé à l'arrière.In the same way, the ski can also include two different time zones, being located at the front of the recess, the other being located at the rear.

    Une autre variante de réalisation est illustrée schématiquement à la figure 9. Dans ce cas, la planche possède deux évidements (53, 54) réalisés sur chacun des côtés de la planche. Chacun de ces évidements (53, 54) est de conception analogue à ceux décrits ci-avant. Dans la forme particulière illustrée, le fond (55) de l'évidement avant (53) présente une inclinaison orientée vers le bas et vers l'avant. Le fond (56) de l'évidement arrière (54) présente une inclinaison orientée vers le haut et vers l'avant (ou de manière équivalente vers le bas et l'arrière).Another variant embodiment is illustrated schematically in FIG. 9. In this case, the board has two recesses (53, 54) made on each of the sides of the board. Each of these recesses (53, 54) is of similar design to those described above. In the particular form illustrated, the bottom (55) of the front recess (53) has a downward and forward inclination. The bottom (56) of the rear recess (54) has an inclination towards the up and forward (or equivalently down and back).

    La longueur (ℓ) de la portion (57) séparant les deux évidements (53, 54) est variable selon les pentes et les longueurs des évidements (53, 54). Elle peut être réduite à une valeur nulle, de sorte que ces deux évidements sont alors contigus.The length (ℓ) of the portion (57) separating the two recesses (53, 54) is variable according to the slopes and the lengths of the recesses (53, 54). She may be reduced to a zero value, so that these two recesses are then contiguous.

    Il ressort de ce qui précède que la planche de glisse conforme à l'invention présente de nombreux avantages, et notamment une répartition de la raideur dans la zone patin qui permet de concentrer le maximum de puissance au niveau des carres, et donc le maximum d'accrochage du ski sous le pied lors du déclenchement du virage. It follows from the foregoing that the gliding board according to the invention has many advantages, including a distribution of stiffness in the pad area which allows to concentrate the maximum power at the level of edges, and therefore the maximum grip of the ski underfoot when triggering of the turn.

    En outre, dans le cas où l'inclinaison de l'évidement caractéristique est orientée vers l'avant et vers le haut, comme dans les formes illustrées, on constate un report de la pression des points d'appui vers l'avant du ski durant le virage, et donc l'amélioration de la conduite du virage proprement dit.In addition, in the case where the inclination of the characteristic recess is forward and upward, as in the illustrated forms, a postponement of the pressure of the points of support towards the front of the ski during the turn, and therefore improving the driving of the turn itself.

    Claims (17)

    1. A board for gliding (1) for downhill skiing, of "shell"-type construction, having, at least in its underfoot zone:
      a lower gliding surface (9) composed of a sole plate (25) bordered by metal edges (7);
      a topsheet (5) substantially parallel to the lower gliding surface (9), on either side of the center longitudinal plane of the board;
      lateral faces (10) extending between the metal edges (7) and the topsheet (5), said lateral faces (10) having recesses (12) located below the plane of the topsheet (5) and opening out in the latter;
      characterized in that the base (16) of the recesses (12) forms a slope that is inclined longitudinally relative to the lower gliding (9) surface and the topsheet (5).
    2. The board for gliding as claimed in claim 1, characterized in that the base of the recesses is inclined toward the front and the bottom of the board.
    3. The board for gliding as claimed in claim 1, characterized in that the base (16) of the recesses (12) is inclined toward the rear and the bottom of the board.
    4. The board for gliding as claimed in claim 1, characterized in that the base of the recesses has a slope that is substantially constant over the greater part of its length.
    5. The board for gliding as claimed in claim 1, characterized in that the base of the recesses has a slope that can vary over its length.
    6. The board for gliding as claimed in claim 1, characterized in that, to the front and to the rear of the recess (12), the lateral faces (10) comprise lateral zones which include different materials.
    7. The board for gliding as claimed in claim 6, characterized in that the one of the materials present in one of the lateral zones is of a viscoelastic nature, so as to confer damping properties on said lateral zone.
    8. The board for gliding as claimed in claim 6, characterized in that the one of the materials present in one of the lateral zones is of an elastic nature, so as to confer dynamizing properties on said lateral zone.
    9. The board for gliding as claimed in claim 7, characterized in that the viscoelastic material forms a spindle piece (30).
    10. The board for gliding as claimed in claim 7, characterized in that the elastic material forms several elements (36) located inside slots (35) made in the lateral zone (37).
    11. The board for gliding as claimed in claim 10, characterized in that the slots have a V- or Y-shaped profile.
    12. The board for gliding as claimed in claim 10, characterized in that the slots (35) have a rectangular profile.
    13. The board for gliding as claimed in claims 7 and 8, characterized in that the lateral zone (32) having damping properties is located to the front of the recess (12), the lateral zone (37) having dynamizing properties being located to the rear of the recess (12).
    14. The board for gliding as claimed in either of claims 7 and 8, characterized in that the lateral zone (33) having damping properties is located to the rear of the recess (12), the lateral zone (34) having dynamizing properties being located to the front of the recess (12).
    15. The board for gliding as claimed in claim 1, characterized in that the recesses have a width, measured in the transverse direction of the board, which can vary over the length of the recess.
    16. The board for gliding as claimed in claim 1, characterized in that which is equipped with a raising platform for the binding, including lateral portions of which the lower edge comes into contact with the base of the recess.
    17. The board for gliding as claimed in claim 1, characterized in that which includes, on each lateral face, two recesses (53, 54) of which the base (55, 56) forms a slope that is inclined longitudinally relative to the lower gliding surface.
    EP02356020A 2001-02-20 2002-02-07 Snowglider Expired - Lifetime EP1232774B1 (en)

    Applications Claiming Priority (2)

    Application Number Priority Date Filing Date Title
    FR0102279 2001-02-20
    FR0102279A FR2820982B1 (en) 2001-02-20 2001-02-20 SLIDING BOARD

    Publications (2)

    Publication Number Publication Date
    EP1232774A1 EP1232774A1 (en) 2002-08-21
    EP1232774B1 true EP1232774B1 (en) 2005-09-07

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    EP02356020A Expired - Lifetime EP1232774B1 (en) 2001-02-20 2002-02-07 Snowglider

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    US (1) US6834880B2 (en)
    EP (1) EP1232774B1 (en)
    AT (1) ATE303852T1 (en)
    DE (1) DE60205961T2 (en)
    FR (1) FR2820982B1 (en)

    Families Citing this family (1)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    SI22083B (en) * 2005-07-18 2009-12-31 Elan, D.O.O. Ski or snowboard with improved torsional stiffness

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    Also Published As

    Publication number Publication date
    ATE303852T1 (en) 2005-09-15
    DE60205961D1 (en) 2005-10-13
    FR2820982B1 (en) 2003-03-28
    EP1232774A1 (en) 2002-08-21
    US20020113412A1 (en) 2002-08-22
    US6834880B2 (en) 2004-12-28
    DE60205961T2 (en) 2006-07-13
    FR2820982A1 (en) 2002-08-23

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