EP0420774A1 - Ski, method of manufacture of the ski and apparatus for implementation - Google Patents
Ski, method of manufacture of the ski and apparatus for implementation Download PDFInfo
- Publication number
- EP0420774A1 EP0420774A1 EP90420422A EP90420422A EP0420774A1 EP 0420774 A1 EP0420774 A1 EP 0420774A1 EP 90420422 A EP90420422 A EP 90420422A EP 90420422 A EP90420422 A EP 90420422A EP 0420774 A1 EP0420774 A1 EP 0420774A1
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- Prior art keywords
- ski
- tool
- plane
- edges
- length
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- 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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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
- B27G13/00—Cutter blocks; Other rotary cutting tools
- B27G13/12—Cutter blocks; Other rotary cutting tools for profile cutting
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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
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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
- A63C5/12—Making thereof; Selection of particular materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
- B27M3/00—Manufacture or reconditioning of specific semi-finished or finished articles
- B27M3/22—Manufacture or reconditioning of specific semi-finished or finished articles of sport articles, e.g. bowling pins, frames of tennis rackets, skis, paddles
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T409/00—Gear cutting, milling, or planing
- Y10T409/30—Milling
- Y10T409/30084—Milling with regulation of operation by templet, card, or other replaceable information supply
- Y10T409/301176—Reproducing means
- Y10T409/301624—Duplicating means
- Y10T409/302464—Duplicating means including plural cutters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T409/00—Gear cutting, milling, or planing
- Y10T409/30—Milling
- Y10T409/30084—Milling with regulation of operation by templet, card, or other replaceable information supply
- Y10T409/302968—Milling with regulation of operation by templet, card, or other replaceable information supply including means for operation without manual intervention
- Y10T409/303024—Milling with regulation of operation by templet, card, or other replaceable information supply including means for operation without manual intervention including simultaneously usable plural tracers or including tracer adapted to simultaneously use plural templets
Definitions
- the present invention relates to a snow ski, a method for its manufacture, and a device for the implementation of this method.
- a ski has a rectangular section, the lower face of which is delimited by the sliding sole, the upper face of which is delimited by a screen-printed covering wall, and the two lateral edges of which are delimited by edges.
- metal edges are provided to improve the guiding conditions and the grip on hard snow and on ice.
- skis whose edges are not perpendicular to the lower face and to the upper face, but inclined so as to form, over at least part of the length of the ski, an acute angle with the lower sole. .
- This angle may have, at the ends of the ski - tip and heel - a value less than that which is found at the level of the skate.
- skis with inclined edges have, when viewed in cross section, inclined rectilinear parts, possibly concave or convex, at the edges.
- the present invention aims to provide a ski with inclined edges, characterized in that the profiles of the inclined zones of the edges formed by curved lines, convex or concave, have a variable curvature along the ski.
- Such a structure makes it possible to influence the mechanical characteristics of the ski, its aesthetics and the resistance to wear of the upper edges.
- skis with inclined edges present production difficulties.
- a self with inclined edges can be obtained directly by molding in a shaped mold. In such a case, it is necessary to have an expensive tool, and difficult to implement for certain structures.
- the present invention aims to remedy these drawbacks by providing a method and a device making it possible to obtain, by machining, a snow ski whose edges have a variable inclination relative to the plane of the ski sole, at different points of its length. and are formed by curved, convex or concave lines, the profiles of the edges having a variable curvature depending on the section considered of the ski.
- the method of manufacturing a ski which it concerns consists, starting from a ski blank, in carrying out the machining of the lateral parts of the ski using a rotating tool with an axis perpendicular to the plane of the upper face of the ski, the active face of which is generated by a continuous monotonous curve, by carrying out a relative movement of the tool and of the ski simultaneously, in the direction of the length of the ski, in the direction of the width of the ski, and in a direction perpendicular to the plane of the upper face of the ski.
- the relative movement of the tool and the ski, perpendicular to the plane of the upper face of the latter, makes it possible to vary the inclination of the edges and the radius of curvature thereof.
- the machining is carried out at a more or less significant angle, relative to the plane of the sole and to the plane of the face. superior of skiing.
- edge bure court can be constant over the entire length of the ski, insofar as the generatrix of the surface of revolution of the tool is an arc of a circle, or variable along the ski, in the measure where the generator is itself made from several sections of successive curves, plotted from mathematical formulas different from each other.
- this method consists in achieving a relative movement of the ski and the tool, in the direction of the length of the ski, by displacement of the ski longitudinally with the tool, a relative movement in the direction of the width of the ski, by displacement sde of the tool relative to the ski, and a relative movement in a direction perpendicular to the plane of the ski, by deformation of the ski by bending, during the machining operation.
- a device for implementing this process comprises means for positioning and clamping the ski to be machined, and means for moving the ski longitudinally with the tool, and for guiding the tool using a template, across the width of the ski.
- the ski to be machined is shaped in the direction perpendicular to the plane of its upper face, by support and clamping in a cradle.
- the ski shown in FIG. 1 is an alpine ski, having a tip 2, a shoe 3, and a heel area 4.
- On the upper face of the ski there are mounted, in the central part thereof, bindings 5 , for a ski boot.
- the ski according to the invention, comprises edges, that is to say lateral faces connecting the upper face 6 and the lower face 7, which are not perpendicular to these two faces as is usually the case, but which are inclined, this inclination being variable along the ski.
- each edge 8a forms, as shown in FIG. 2, an angle A of less than 90 ° with the sole 7, while near the tip 2 and the heel 4, each edge 8b forms, as shown in FIG.
- the edges are not formed by flat surfaces, but have, seen in cross section, a curved profile, in this case convex, corresponding to radii of curvature respectively R1 in the pad area and R2 in the tip areas and heel.
- the ski is obtained from a roughly rectangular section blank, that is to say the edges of which are substantially perpendicular to the upper face 6 and to the lower face 7.
- the ski itself even is produced by machining the blank using a tool which is shown in more detail in Figure 4.
- This tool comprises a shaft 3. at the end of which is mounted an active part 10, comprising a surface of revolution concave 12, this surface of revolution being generated by a generator which is itself concave, which can be constituted either by an arc of a circle, or by a complex curve, the curvature of which is variable.
- the variation in the inclination of the edges of the ski is obtained by carrying out relative displacements of each tool and of the ski: - a longitudinal displacement of the ski relative to each tool, - lateral movement of each tool relative to the ski, - A relative displacement of each tool and the upper plane of the ski, perpendicular to the plane of the ski.
- Figures 5 to 7 show three positions of the ski relative to the tool, respectively in an area close to the tip, in the skate area, and near the heel.
- the distance between the underside of the ski and the base of the tool has relatively large values H1 and H3 in the areas close to the tip and the heel.
- the ski is in contact with the upper part of the active face of the tool, that is to say the part of the active face which is relatively slightly inclined by compared to the horizontal.
- the underside of the ski is at a relatively short distance H2 from the base of the tool, so that the edge of the blank is in contact with a part of the active surface of the tool relatively close to the vertical.
- the distance d2 between the median longitudinal axis of the ski and the axis of the tool is less in the shoe zone, as shown in FIG. 6, at the corresponding distances d1 and d3, figures 5 and 7, in the areas of the tip and the heel.
- FIGS 5 and 9 show means for the implementation of this method.
- FIG. 2 shows more specifically a cradle 15, hollow, in which a ski is kept pressed by clamping by support pads 16. It follows from this structure that, taking into account the hanger which is given to the ski, it occurs , during the longitudinal displacement of the cradle, a relative displacement in the height direction, of each tool and of the upper plane of the ski.
- FIG. 9 shows a ski in top view: during machining, the transverse movement of each tool being produced by means of a guide roller 17 rises on the axis of the tool. resting on a template 12, the copying of which makes it possible to obtain, above the edges, the profile of the lateral parts of the ski.
- the invention brings a great improvement to the existing technique, by providing a ski with an interesting structure, obtained by a simple and inexpensive method and device of implementation.
- the invention is not limited to the sole embodiment of this ski, described above by way of example, nor to the sole embodiment of its manufacturing process, it also kiss at otherwise all variants.
- the inclined surfaces could not be convex, but concave, that the tools arranged on either side of the ski could have a different profile in order to obtain a ski with asymmetrical profile, or even that the ski could be fixed and each tool displaceable longitudinally, without thereby departing from the scope of the invention.
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Abstract
Description
La présente invention a pour objet un ski de neige, un procédé pour sa fabrication, et un dispositif pour la mise en oeuvre de ce procédé.The present invention relates to a snow ski, a method for its manufacture, and a device for the implementation of this method.
Le plus souvent, un ski possède une section rectangulaire, dont la face inférieure est délimitée par la semelle de glissement, dont la face supérieure est délimitée par une paroi de recouvrement sérigraphiée, et dont les deux bords latéraux sont délimités par des chants. A la ligne de jonction, entre la semelle et les chants, sont ménagées des carres métalliques permettant d'améliorer les conditions de guidage et l'accrochage sur les neiges dures et sur la glace.Most often, a ski has a rectangular section, the lower face of which is delimited by the sliding sole, the upper face of which is delimited by a screen-printed covering wall, and the two lateral edges of which are delimited by edges. At the junction line, between the sole and the edges, metal edges are provided to improve the guiding conditions and the grip on hard snow and on ice.
Il est également connu de réaliser des skis dont les chants ne sont pas perpendiculaires à la face inférieure et à la face supérieure, mais inclinés de façon à former, sur au moins une partie de la longueur du ski, un angle aigu avec la semelle inférieure. Cet angle peut posséder, aux extrémités du ski - spatule et talon -, une valeur inférieure à celle que l'on trouve au niveau du patin. Un tel agencement permet de faciliter la pratique du ski en neige poudreuse, puisque les extrémités du ski "coupent" mieux la neige, que dans le cas d'un ski de section rectangulaire sur toute sa longueur.It is also known to make skis whose edges are not perpendicular to the lower face and to the upper face, but inclined so as to form, over at least part of the length of the ski, an acute angle with the lower sole. . This angle may have, at the ends of the ski - tip and heel - a value less than that which is found at the level of the skate. Such an arrangement makes it easier to ski in powder snow, since the ends of the ski "cut" the snow better than in the case of a ski of rectangular section over its entire length.
Généralement, les skis à chants inclinés présentent, vus en coupe transversale, des parties rectilignes inclinées, éventuellement concaves ou convexes, au niveau des chants.Generally, skis with inclined edges have, when viewed in cross section, inclined rectilinear parts, possibly concave or convex, at the edges.
La présente invention vise à fournir un ski à chants inclinés, caractérisé en ce que les profils des zones inclinées des chants constitués par des lignes courbes, convexes ou concaves, présentent une courbure variable le long du ski.The present invention aims to provide a ski with inclined edges, characterized in that the profiles of the inclined zones of the edges formed by curved lines, convex or concave, have a variable curvature along the ski.
Une telle structure permet d' influer sur les caractéristiques mécaniques du ski, sur son esthétique et sur la résistance à l'usure des arêtes supérieures.Such a structure makes it possible to influence the mechanical characteristics of the ski, its aesthetics and the resistance to wear of the upper edges.
Toutefois, les skis à chants inclinés présentent des difficultés de réalisation. Un soi à chants inclinés peut être obtenu directement par moulage dans un moule en forme. Dans un tel cas, il convient de disposer d'un outillage coûteux, et difficile à mettre en oeuvre pour certaines structures.However, skis with inclined edges present production difficulties. A self with inclined edges can be obtained directly by molding in a shaped mold. In such a case, it is necessary to have an expensive tool, and difficult to implement for certain structures.
Il est également envisageable de réaliser un ski à chants inclinés, par usinage des chants à l'aide d'une machine-outil à commande numérique. Toutefois, pour réaliser des formes particulières, et notamment des surfaces courbes, il convient de disposer d'une machine à quatre axes, avec fraise cylindrique, ce qui nécessite un investissement très lourd. Il serait également possible de réaliser un usinage à l'aide d'une machine-outil à trois axes, avec une fraise en forme.It is also conceivable to produce a ski with inclined edges, by machining the edges using a machine tool with digital control. However, to achieve particular shapes, and in particular curved surfaces, it is necessary to have a machine with four axes, with cylindrical cutter, which requires a very heavy investment. It would also be possible to perform machining using a three-axis machine tool, with a milled cutter.
La présente invention vise à remédier à ces inconvénients, en fournissant un procédé et un dispositif permettant d'obtenir, par usinage, un ski de neige dont les chants possèdent une inclinaison variable par rapport au plan de la semelle du ski, en différents points de sa longueur. et sont constitués par des lignes courbes, convexes ou concaves, les profils des chants possédant une courbure variable suivant la section considérée du ski.The present invention aims to remedy these drawbacks by providing a method and a device making it possible to obtain, by machining, a snow ski whose edges have a variable inclination relative to the plane of the ski sole, at different points of its length. and are formed by curved, convex or concave lines, the profiles of the edges having a variable curvature depending on the section considered of the ski.
A cet effet, le procédé de fabrication d'un ski qu'elle concerne consiste, partant d'une ébauche de ski, à réaliser l'usinage des parties latérales du ski à l'aide d'un outil tournant d'axe perpendiculaire au plan de la face supérieure du ski, dont la face active est engendrée par une courbe continue monotone, en réalisant un mouvement relatif de l'outil et du ski simultanément, dans la direction de la longueur du ski, dans la direction de la largeur du ski, et dans une direction perpendiculaire au plan de la face supérieure du ski.To this end, the method of manufacturing a ski which it concerns consists, starting from a ski blank, in carrying out the machining of the lateral parts of the ski using a rotating tool with an axis perpendicular to the plane of the upper face of the ski, the active face of which is generated by a continuous monotonous curve, by carrying out a relative movement of the tool and of the ski simultaneously, in the direction of the length of the ski, in the direction of the width of the ski, and in a direction perpendicular to the plane of the upper face of the ski.
Le réglage de la profondeur de passe dans la direction de la largeur du ski permet de lui donner le profil désiré. En fonction de la position de l'outil vis-à-vis de la longueur du ski. cette profondeur de passe varie.The adjustment of the depth of pass in the direction of the width of the ski makes it possible to give it the desired profile. Depending on the position of the tool with respect to the length of the ski. this depth of pass varies.
Le mouvement relatif de l'outil et du ski, perpendiculaire au plan de la face supérieure de ce dernier, permet de faire varier l'inclinaison des chants et lê rayon de courbure de ceux-ci. En effet, en fonction de la position du chant du ski, par rapport à la partie active de l'outil, l'usinage est réalisé selon un angle plus ou moins important, par rapport au plan de la semelle et au plan de la face supérieure du ski.The relative movement of the tool and the ski, perpendicular to the plane of the upper face of the latter, makes it possible to vary the inclination of the edges and the radius of curvature thereof. In fact, depending on the position of the edge of the ski, relative to the active part of the tool, the machining is carried out at a more or less significant angle, relative to the plane of the sole and to the plane of the face. superior of skiing.
Il s'agit donc d'une méthode simple, permettant de réaliser une inclinaison variable des chants sur la longueur du ski.It is therefore a simple method, allowing a variable inclination of the edges along the length of the ski.
Il est à noter que la cour bure du chant peut être constante sur toute la longueur du ski, dans la mesure où la génératrice de la surface de révolution de l'outil est un arc de cercle, ou variable le long du ski, dans la mesure où la génératrice est elle-même réalisée à partir de plusieurs tronçons de courbes successifs,tracés à partir de formules mathématiques différentes les unes des autres.It should be noted that the edge bure court can be constant over the entire length of the ski, insofar as the generatrix of the surface of revolution of the tool is an arc of a circle, or variable along the ski, in the measure where the generator is itself made from several sections of successive curves, plotted from mathematical formulas different from each other.
Selon un mode simple de mise en oeuvre, ce procédé consiste à réaliser un mouvement relatif du ski et de l'outil, dans la direction de la longueur du ski, par déplacement du ski longitudinalement à l'outil, un mouvement relatif dans la direction de la largeur du ski, par déplacement sde l'outil par rapport au ski, et un mouvement relatif dans une direction perpendiculaire au plan du ski, par déformation du ski par cintrage, au cours de l'opération d'usinage.According to a simple embodiment, this method consists in achieving a relative movement of the ski and the tool, in the direction of the length of the ski, by displacement of the ski longitudinally with the tool, a relative movement in the direction of the width of the ski, by displacement sde of the tool relative to the ski, and a relative movement in a direction perpendicular to the plane of the ski, by deformation of the ski by bending, during the machining operation.
Un dispositif pour la mise en oeuvre de ce procédé, comprend des moyens de positionnement et de bridage du ski à usiner, et des moyens de déplacement du ski longitudinalement à l'outil, et de guidage de l'outil à l'aide d'un gabarit, dans le sens de la largeur du ski.A device for implementing this process comprises means for positioning and clamping the ski to be machined, and means for moving the ski longitudinally with the tool, and for guiding the tool using a template, across the width of the ski.
Selon une caractéristique avantageuse de l'invention, le ski à usiner est mis en forme dans la direction perpendiculaire au plan de sa face supérieure, par appui et bridage dans un berceau.According to an advantageous characteristic of the invention, the ski to be machined is shaped in the direction perpendicular to the plane of its upper face, by support and clamping in a cradle.
Il est intéressant de noter que dans un tel cas, la variation de la courbure de chaque chant du ski sur la longueur de celui-ci est obtenue par déplacement relatif du chant incliné du ski par rapport à l'outil. dans un plan perpendiculaire au plan de la face supérieure du ski, résultant de la mise en forme du ski dans son berceau.It is interesting to note that in such a case, the variation in the curvature of each edge of the ski over the length thereof is obtained by relative displacement of the inclined edge of the ski relative to the tool. in a plane perpendicular to the plane of the upper face of the ski, resulting from the shaping of the ski in its cradle.
De toute façon, l'invention sera bien comprise à l'aide de la description qui suit, en référence au dessin schématique annexé représentant, à titre d'exemple non limitatif, une forme d'exécution de ce ski, ainsi qu'une forme d'exécution de moyens permettant l'obtention des chants inclinés de celui-ci :
- Figure 1 est une vue de dessus d'un ski conforme à l'invention,
- Figures 2 et 3 en sont deux vues en coupe transversale, et à échelle agrandie, selon les lignes II-II et III-III de figure 1,
- Figure 4 est une vue en perspective, d'un outil d'usinage de ce ski,
- Figures 8 à 7 sont trois vues de cote, représentant l'outil et le ski, au cours de trois phases d'usinage, respectivement à l'avant du ski, dans la zone de patin de celui-ci et à proximité de son talon;
- Figure 5 est une vue très schématique de côté, des moyens permettant l'usinage du ski,
- Figure 9 est une vue de dessus. d'un ski en cours d'usinage.
- FIG. 1 is a top view of a ski according to the invention,
- Figures 2 and 3 are two views in cross section, and on an enlarged scale, along the lines II-II and III-III of Figure 1,
- FIG. 4 is a perspective view of a tool for machining this ski,
- Figures 8 to 7 are three side views, representing the tool and the ski, during three machining phases, respectively at the front of the ski, in the skate area thereof and near its heel ;
- FIG. 5 is a very schematic side view of the means allowing the machining of the ski,
- Figure 9 is a top view. a ski during machining.
Le ski représenté à la figure 1 est un ski alpin, présentant une spatule 2, un patin 3, et une zone de talon 4. Sur la face supérieure du ski, sont montées, dans la partie centrale de celui-ci, des fixations 5, pour une chaussure de ski. Le ski, selon l'invention, comporte des chants, c'est-à-dire des faces latérales reliant la face supérieure 6 et la face inférieure 7, qui ne sont pas perpendiculaires à ces deux faces comme tel est le cas habituellement, mais qui sont inclinées, cette inclinaison étant variable le long du ski. C'est ainsi que dans la zone de patin, chaque chant 8a forme, comme montré figure 2, un angle A inférieur à 90° avec la semelle 7, tandis qu'à proximité de la spatule 2 et du talon 4, chaque chant 8b forme, comme montré figure 3, un angle 13 avec la semelle 7, la valeur de l'angle 13 étant inférieure à celle de l'angle A. Comme cela ressort également des dessins. les chants ne sont pas constitués par des surfaces planes, mais présentent, vus en coupe transversale, un profil courbe, en l'occurrence convexe, correspondant à des rayons de courbure respectivement R1 dans la zone de patin et R2 dans les zones de spatule et de talon.The ski shown in FIG. 1 is an alpine ski, having a
Le ski, selon l'invention, est obtenu a partir d'une ébauche de section sensiblement rectangulaire, c'est-à-dire dont les chants sont sensiblement perpendiculaires à la face supérieure 6 et à la face inférieure 7. Le ski lui-même est réalisé par usinage de l'ebauche à l'aide d'un outil qui est représenté plus en détails à la figure 4. Cet outil comprend un arbre 3. en bout duquel est montée une partie active 10, comportant une surface de révolution concave 12, cette surface de révolution étant engendrée par une génératrice elle-même concave, qui peut être constituée soit par un arc de cercle, soit par une courbe complexe, dont la cour bure est variable.The ski, according to the invention, is obtained from a roughly rectangular section blank, that is to say the edges of which are substantially perpendicular to the upper face 6 and to the
Selon la caractéristique essentielle du procédé selon l'invention, la variation de l'inclinaison des chants du ski est obtenue en réalisant des déplacements relatifs de chaque outil et du ski :
- un déplacement longitudinal du ski par rapport à chaque outil,
- un déplacement latéral de chaque outil par rapport au ski,
- un déplacement relatif de chaque outil et du plan supérieur du ski, perpendiculairement au plan du ski.According to the essential characteristic of the method according to the invention, the variation in the inclination of the edges of the ski is obtained by carrying out relative displacements of each tool and of the ski:
- a longitudinal displacement of the ski relative to each tool,
- lateral movement of each tool relative to the ski,
- A relative displacement of each tool and the upper plane of the ski, perpendicular to the plane of the ski.
Les figures 5 à 7 représentent trois positions du ski par rapport à l'outil, respectivement dans une zone proche de la spatule, dans la zone de patin, et à proximité du talon.Figures 5 to 7 show three positions of the ski relative to the tool, respectively in an area close to the tip, in the skate area, and near the heel.
Comme cela ressort des dessins, la distance entre la face inférieure du ski et la base de l'outil, possède des valeurs H1 et H3 relativement importantes dans les zones proches de la spatule et du talon. Il en résulte que le ski est au contact de la partie supérieure de la face active de l'outil, c'est-à-dire la partie de la face active qui est relativement peu inclinée par rapport à l'horizontale.As can be seen from the drawings, the distance between the underside of the ski and the base of the tool has relatively large values H1 and H3 in the areas close to the tip and the heel. As a result, the ski is in contact with the upper part of the active face of the tool, that is to say the part of the active face which is relatively slightly inclined by compared to the horizontal.
Au contraire, dans la zone de patin, comme montré à la figure 6, la face inférieure du ski se trouve a une distance H2 relativement faible de la base de l'outil, de telle sorte que le chant de l'ébauche se trouve en contact avec une partie de la surface active de l'outil relativement proche de la verticale.On the contrary, in the skid area, as shown in FIG. 6, the underside of the ski is at a relatively short distance H2 from the base of the tool, so that the edge of the blank is in contact with a part of the active surface of the tool relatively close to the vertical.
Il est également possible de jouer sur la profondeur de passe, en adaptant le déplacement transversal de l'outil par rapport au ski. Compte tenu de la forme du ski, la distance d2 entre l'axe longitudinal médian du ski et l'axe de l'outil est inférieure dans la zone de patin, comme montré à la figure 6, aux distances correspondantes d1 et d3, figures 5 et 7, dans les zones de la spatule et du talon.It is also possible to play on the depth of the pass, by adapting the transverse movement of the tool relative to the ski. Given the shape of the ski, the distance d2 between the median longitudinal axis of the ski and the axis of the tool is less in the shoe zone, as shown in FIG. 6, at the corresponding distances d1 and d3, figures 5 and 7, in the areas of the tip and the heel.
Les figures 5 et 9 representent des moyens pour la mise en oeuvre de ce procédé.Figures 5 and 9 show means for the implementation of this method.
La figure 2 montre plus spécialement un berceau 15, en creux, dans lequel un ski est maintenu plaqué par bridage par des patins d'appui 16. Il résulte de cette structure que, compte tenu du cintre qui est donne au ski, il se produit, lors du déplacement longitudinal du berceau, un déplacement relatif dans le sens de la hauteur, de chaque outil et du plan supérieur du ski.FIG. 2 shows more specifically a
La figure 9 montre un ski en vue de dessus: en cours d'usinage, le déplacement transversal de chaque outil étant réalisé par l'intermédiaire d'un galet de guidage 17 monte sur l'axe de l'outil. en appui sur un gabarit 12, dont le copiage permet d'obtenir, au-dessus des carres, le profil des parties latérales du ski.FIG. 9 shows a ski in top view: during machining, the transverse movement of each tool being produced by means of a
Comme il ressort de ce qui précède, l'invention apporte une grande amélioration à la technique existante, en fournissant un ski de structure intéressante, obtenu par un procédé et un dispositif simples et peu coûteux de mise en oeuvre.As is apparent from the above, the invention brings a great improvement to the existing technique, by providing a ski with an interesting structure, obtained by a simple and inexpensive method and device of implementation.
Il est possible de travailler à l'aide d'un équipement courant, à savoir une toupie avec une ou deux têtes d'usinage, et un gabarit à deux fonctions, ou deux gabarits indépendants, pour réaliser respectivement la mise en position du ski par rapport à la hauteur de l'outil, et le copiage du profil des parties latérales du ski.It is possible to work using standard equipment, namely a router with one or two machining heads, and a jig with two functions, or two independent jigs, to respectively bring the ski into position by relative to the height of the tool, and the copying of the profile of the lateral parts of the ski.
Comme il va de soi, l'invention ne se limite pas à la seule forme d'exécution de ce ski, décrite ci-dessus à titre d'exemple, ni au seul mode de mise en oeuvre de son procédé de fabrication, elle en embrasse au contraire toutes les variantes. C'est ainsi notamment que les surfaces inclinées pourraient être non pas convexes, mais concaves, que les outils disposes de part et d'autre du ski pourraient posséder un profil différent dans le but d'obtenir un ski à profil dissymétrique, ou encore que le ski pourrait être fixe et chaque outil déplaçable longitudinalement, sans que l'on sorte pour autant du cadre de l'invention.As it goes without saying, the invention is not limited to the sole embodiment of this ski, described above by way of example, nor to the sole embodiment of its manufacturing process, it also kiss at otherwise all variants. Thus in particular that the inclined surfaces could not be convex, but concave, that the tools arranged on either side of the ski could have a different profile in order to obtain a ski with asymmetrical profile, or even that the ski could be fixed and each tool displaceable longitudinally, without thereby departing from the scope of the invention.
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT90420422T ATE90584T1 (en) | 1989-09-29 | 1990-09-28 | SKI, METHOD OF MANUFACTURE OF THE SKI AND DEVICE FOR THE EXECUTION. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8913228A FR2652507B1 (en) | 1989-09-29 | 1989-09-29 | SNOW SKIING, PROCESS FOR MANUFACTURING SAME, AND DEVICE FOR CARRYING OUT SAID METHOD. |
FR8913228 | 1989-09-29 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0420774A1 true EP0420774A1 (en) | 1991-04-03 |
EP0420774B1 EP0420774B1 (en) | 1993-06-16 |
Family
ID=9386254
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90420422A Expired - Lifetime EP0420774B1 (en) | 1989-09-29 | 1990-09-28 | Ski, method of manufacture of the ski and apparatus for implementation |
Country Status (5)
Country | Link |
---|---|
US (1) | US5088755A (en) |
EP (1) | EP0420774B1 (en) |
AT (1) | ATE90584T1 (en) |
DE (1) | DE69001978T2 (en) |
FR (1) | FR2652507B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6257620B1 (en) * | 2000-02-23 | 2001-07-10 | Bernard Carroll Kenney | High efficiency ski for sailing on snow or ice |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2665369B1 (en) * | 1990-08-06 | 1992-10-16 | Salomon Sa | SKI WITH VARIABLE CONVEX TOP. |
FR2703916B1 (en) * | 1993-04-16 | 1995-05-19 | Rossignol Sa | Ski with edges and upper shell. |
US8251395B2 (en) * | 2003-11-13 | 2012-08-28 | Matthew Wade Ellison | Gliding boards and methods of modifying gliding boards |
US7641215B2 (en) * | 2006-02-28 | 2010-01-05 | Matthew Wade Ellison | Ski and snowboard equipment system |
DE102008034293A1 (en) * | 2008-07-22 | 2010-01-28 | Marker Völkl (International) GmbH | Ski, especially downhill skiing |
FR2952829B1 (en) * | 2009-11-20 | 2012-01-20 | Salomon Sas | ALPINE SKIING |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2181061A1 (en) * | 1972-04-21 | 1973-11-30 | Nippon Musical Instruments Mfg | |
US3916965A (en) * | 1972-05-04 | 1975-11-04 | William Earl Attridge | Apparatus for edge-shaping boards |
FR2522976A1 (en) * | 1982-03-11 | 1983-09-16 | Tua Ski Srl | SNOW SKIING |
FR2618078A1 (en) * | 1987-07-15 | 1989-01-20 | Salomon Sa | DIVERGENT SUPERIOR SKIING |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US881793A (en) * | 1906-08-03 | 1908-03-10 | William T Adams | Wood-molding machine. |
FR1066428A (en) * | 1952-11-10 | 1954-06-04 | Etude Soc Pour | Single or multiple electromechanical machining device particularly intended for working with wood, plastics and light metals |
NL190049A (en) * | 1954-08-17 | |||
US3165976A (en) * | 1961-10-30 | 1965-01-19 | Wilhelm Grupp K G Werkzeug Und | Template controlled machine tool |
SU402462A1 (en) * | 1971-08-09 | 1973-10-19 | Специальное конструкторское бюро проектированию деревообрабатывающих станков Всесоюзного научно исследовательского , конструкторского института деревообрабатывающего машиностроени | MACHINE FOR PROCESSING SKI |
JPS5231994U (en) * | 1975-08-29 | 1977-03-05 | ||
IT1226455B (en) * | 1988-07-27 | 1991-01-16 | Witox Spa | MILLING TOOL, EQUIPPED WITH TILTING TOOL HOLDER |
-
1989
- 1989-09-29 FR FR8913228A patent/FR2652507B1/en not_active Expired - Fee Related
-
1990
- 1990-09-11 US US07/580,528 patent/US5088755A/en not_active Expired - Lifetime
- 1990-09-28 EP EP90420422A patent/EP0420774B1/en not_active Expired - Lifetime
- 1990-09-28 AT AT90420422T patent/ATE90584T1/en active
- 1990-09-28 DE DE9090420422T patent/DE69001978T2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2181061A1 (en) * | 1972-04-21 | 1973-11-30 | Nippon Musical Instruments Mfg | |
US3916965A (en) * | 1972-05-04 | 1975-11-04 | William Earl Attridge | Apparatus for edge-shaping boards |
FR2522976A1 (en) * | 1982-03-11 | 1983-09-16 | Tua Ski Srl | SNOW SKIING |
FR2618078A1 (en) * | 1987-07-15 | 1989-01-20 | Salomon Sa | DIVERGENT SUPERIOR SKIING |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6257620B1 (en) * | 2000-02-23 | 2001-07-10 | Bernard Carroll Kenney | High efficiency ski for sailing on snow or ice |
Also Published As
Publication number | Publication date |
---|---|
DE69001978T2 (en) | 1993-09-23 |
FR2652507A1 (en) | 1991-04-05 |
FR2652507B1 (en) | 1991-12-13 |
US5088755A (en) | 1992-02-18 |
EP0420774B1 (en) | 1993-06-16 |
DE69001978D1 (en) | 1993-07-22 |
ATE90584T1 (en) | 1993-07-15 |
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