EP0278859A1 - Cross-country ski - Google Patents

Cross-country ski Download PDF

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Publication number
EP0278859A1
EP0278859A1 EP88400257A EP88400257A EP0278859A1 EP 0278859 A1 EP0278859 A1 EP 0278859A1 EP 88400257 A EP88400257 A EP 88400257A EP 88400257 A EP88400257 A EP 88400257A EP 0278859 A1 EP0278859 A1 EP 0278859A1
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EP
European Patent Office
Prior art keywords
cross
rib
ski
country ski
profile
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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.)
Granted
Application number
EP88400257A
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German (de)
French (fr)
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EP0278859B1 (en
Inventor
Jean-Luc Diard
Philippe Grandjacques
Gilles Recher
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Salomon SAS
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Salomon SAS
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Priority to AT88400257T priority Critical patent/ATE65030T1/en
Publication of EP0278859A1 publication Critical patent/EP0278859A1/en
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Publication of EP0278859B1 publication Critical patent/EP0278859B1/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
    • A63C5/0405—Shape thereof when projected on a plane, e.g. sidecut, camber, rocker
    • A63C5/0411—Shape thereof when projected on a plane, e.g. sidecut, camber, rocker asymmetric
    • A—HUMAN NECESSITIES
    • A63—SPORTS; GAMES; AMUSEMENTS
    • A63C—SKATES; SKIS; ROLLER SKATES; DESIGN OR LAYOUT OF COURTS, RINKS OR THE LIKE
    • A63C9/00—Ski bindings
    • A63C9/20—Non-self-releasing bindings with special sole edge holders instead of toe-straps

Definitions

  • the present invention relates to a cross-country ski comprising a longitudinal rib projecting from its upper face.
  • Cross-country skis which have a longitudinal rib on their upper face.
  • This longitudinal rib generally has a trapezoidal cross section, in other words it is delimited by a horizontal upper face and two inclined lateral faces, and this rib with trapezoidal cross section connects to the lower part of the ski which has a rectangular cross section, of small height, the short sides of which constitute the edges of the ski Due to the reduced height of these edges, such a cross-country ski slides more easily over snow.
  • the upper longitudinal rib contributes to the lateral guiding of the boot mounted on the cross-country ski which is suitable for this purpose thanks to the provision, in its sole, of a groove having in cross section a shape complementary to that of the rib. ski.
  • the present invention relates to improvements made to such cross-country skiing with the aim of easily adapting its rigidity or its elastic response and improving its technique, without notably increasing its weight.
  • this cross-country ski comprising a longitudinal rib at its upper part is characterized in that it comprises on each side of the longitudinal guide rib and at least in the area where a boot is supported on the ski, an auxiliary profile. attached attached attached to the lateral face of the longitudinal guide rib and of height less than this rib, this auxiliary auxiliary profile having a horizontal upper surface on which the sole of the shoe is supported.
  • auxiliary profiles allow, thanks to a judicious choice of their material and their shape, to easily modify the characteristics of a cross-country ski with a longitudinal guide rib, with regard in particular to its flexibility and its response to stresses.
  • FIG. 1 and 2 a cross-country ski 1 which has, at its upper part, a longitudinal guide rib 2 with a trapezoidal cross section.
  • This trapezoidal cross section is not, however, limiting and it could have any other suitable shape, in particular polygonal or curved.
  • the cross section of the rib 2 is formed by the superposition of two sec elementary isosceles trapezium.
  • the guide rib 2 thus has a horizontal upper face 2a constituting the small base of the upper trapezoidal section. which is extended by two inclined side faces 2b, 2c.
  • This upper trapezoidal section is connected to a lower tapered section whose small upper base corresponds to the large base of the upper trapezoidal section.
  • the lower trapezoidal section comprises two lower inclined side walls 2d, 2e which are less inclined than the upper inclined side walls 2b, 2c.
  • the two lower inclined side walls 2d, 2e are connected to the vertical edges 1a, 1b, of low height, of the ski 1 that extend to the sole 3 of this ski.
  • the cross-country ski 1 is provided, on each side of the longitudinal guide rib 2, with an attached auxiliary profile 4 which is rigid in the case of the embodiment shown in FIGS. 1 and 2.
  • This profile is fixed to the inclined side faces 2d.2c of the rib 2 by any suitable means, for example by gluing.
  • the profile 4 has a cross section in the shape of a right triangle and it includes a horizontal upper face 4a, a vertical external face 4b and an inclined internal face 4c corresponding to the hypotenuse of the right triangle.
  • the triangular cross section of the added auxiliary profile 4 is such that its vertical external face 4b is located in the plane of the edge 1a, 1b of the ski, that its inclined internal face 4c is applied to one of the lower inclined faces 2d, 2e of the rib 2 and that its upper horizontal face 4a is situated in the horizontal plane constituting the plane of separation of the two trapezoidal sections of the rib 2.
  • the rigid auxiliary auxiliary profile 4 can be full as shown in the left part of Figure 2 or hollow as shown in the right part of this figure, provided that in the latter case the wall of the profile is sufficiently thick to provide the desired rigidity.
  • the forecast on both sides of the guide rib 2, of rigid attached auxiliary sections 4 makes it possible to modify at will the overall characteristic of rigidity or elasticity of the cross-country ski 1, according to the wishes.
  • FIG. 2 also shows the sole 5 of a ski boot which is provided, in its lower face, with a longitudinal groove 6 which covers the guide rib 2.
  • This sole 5 is supported on the upper horizontal faces 4a of the profiles rigid added auxiliaries 4 and the bottom of the groove 6 is located slightly above the upper face 2a of the rib 2, owing to the fact that the depth p of this groove 6 is slightly greater than the height h of the upper trapezoidal section 2a, 2b, 2c of the rib 2.
  • the longitudinal guide rib 2 has a cross section having the shape of a single isosceles trapezoid.
  • the inclined side faces 2b, 2c extend downward, with the same slope, until low. distance from the sole 3, and they are, at this point, connected to horizontal wings 2f, 2g of small width, which extend outwards to the edges 1a, 1b.
  • each added auxiliary profile 8 has a cross section in the shape of a rectangular trapezoid defined by a horizontal upper face 8a, a vertical external face 8b situated in the vertical plane of the edge 1a, 1b, a horizontal lower face 8c in contact with the 'lower horizontal wing 2f, 2g and of the same width as the latter, and an inclined internal face 8d, of the same inclination as the inclined lateral faces 2b, 2c of the rib 2, and in contact with the lower part of these faces.
  • Each profile 8 is shown as being rigid in FIG. 5 and it can be either full (left part of FIG. 5) or hollow (right part of FIG. 5).
  • Figures 6 and 7 show an alternative embodiment in which the added auxiliary profiles 9 have the same trapezoidal cross section as the profiles 8 but are made of a flexible and elastic material, which allows their compression by the sole 5 of the shoe as shown in Figure 7.
  • the cross-country ski comprises two additional auxiliary profiles 11, 12 of trapezoidal cross section, which are arranged on either side of the longitudinal guide rib and are connected to one another.
  • the two added auxiliary profiles 11, 12 constitute the extreme lateral parts of a single profile which comprises an upper central part 13 of trapezoidal shape, flared downwards, which covers the upper part of an internal profile 14 also of trapezoidal cross section, flared downward and connecting to the sole 3 of the ski.
  • the two lateral sections 11, 12 respectively have upper horizontal faces 11a, 12a, which are connected to external vertical faces 11b, 12b constituting the edges of the ski and which end in lower horizontal wings 11c, 12c extending towards the inside.
  • the central trapezoidal part upper 13 comprises, for its part, an upper horizontal face 13a and two inclined lateral faces 13b, 13c which are respectively connected to the upper horizontal faces 11a, 12a of the two lateral profiles 11,12.
  • the internal profile 14 of trapezoidal cross section comprises an upper horizontal face 14a on which is pressed the upper horizontal face 13a of the upper trapezoidal central part 13, and two inclined lateral faces 14b, 14c on the upper parts of which the inclined lateral faces are pressed 13b, 13c of the trapezoidal upper central part 13.
  • These inclined lateral faces 14b, 14c end, at their lower ends, by wings 14d, 14e, extending outwards and on which the internal lower wings 11c are pressed.
  • the volumes delimited inside the ski can be left empty or on the contrary they can be filled with a rigid but light material such as foam.
  • FIGS. 9 and 10 illustrate how an elastic added auxiliary profile, such as profile 7, gives way and reacts when a ski boot 15, which is articulated, relative to the cross-country ski 1, about a horizontal axis and transverse 16, pivots about this axis, by lifting the heel when pressing on the ski for advancing the other ski. It can be seen, in FIGS. 9 and 10, that the end 5a of the sole 5 penetrates slightly into the elastic added auxiliary profile 7, during the pivoting of the shoe 15 anticlockwise around the axis 16, and that the elastic deformation of the profile 7 results in a return force f tending to bring the shoe 15 in a horizontal position on the ski.
  • the front part 5a of the sole 5 of the shoe is in abutment against an inclined face of a raised part 7a of the elastic added auxiliary product 7. From this makes the pivoting movement of the shoe 15, anticlockwise shows around the transverse axis 16, results in the depression, by the end of the sole 5a, of the inclined face of the elastic raised part 7a which forms a slight bead 17, strongly exaggerated in FIG. 12, projecting relative to the upper surface, this bead 17 contributing to the elastic return of the boot flat on the ski.
  • the added auxiliary profile can extend only under the boot 15 (FIG. 13) or over practically the entire length of the cross-country ski 1 ( Figure 14) or only over part of this length.
  • the two added auxiliary sections situated respectively on the two sides of the longitudinal guide rib 2 can be of the same type or possibly of different types, for example rigid on one side of the rib 2 and flexible and elastic on the other.

Abstract

PCT No. PCT/FR88/00061 Sec. 371 Date Oct. 5, 1988 Sec. 102(e) Date Oct. 5, 1988 PCT Filed Feb. 4, 1988 PCT Pub. No. WO88/05676 PCT Pub. Date Aug. 11, 1988.The ski comprises at its top part a longitudinal rib usable particularly for the lateral guiding of a shoe. In order to improve the technical qualities of the ski without substantially increasing its weight, the cross-section of the rib is comprised at least in the front part of the central area (A) where the shoe sole is bearing, of the superposition of at least two elementary sections (2,3) having each the shape of a quadrilateral and interconnected by a common side forming the lower side of the upper elementary section and the upper side of the lower elementary section of which the lower side is horizontal, the lateral sides (7,8) of the lower elementary section (3) converging upwards and being more inclined with respect to a vertical and longitudinal plane than those (5,6) of the upper elementary section (2).

Description

La présente invention concerne un ski de fond com­portant une nervure longitudinale en saillie par rapport à sa face supérieure.The present invention relates to a cross-country ski comprising a longitudinal rib projecting from its upper face.

On connait déjà des skis de fond qui comportent une nervure longitudinale sur leur face supérieure. Cette ner­vure longitudinale présente en général une section droite trapézoïdale autrement dit elle est délimitée par une face supérieure horizontale et deux faces latérales inclinées, et cette nervure à section droite trapézoïdale se raccorde à la partie inférieure du ski qui présente une section droite rectangulaire, de faible hauteur, dont les petits côtés constituent les chants du ski Du fait de la hauteur réduite de ces chants, un tel ski de fond glisse plus facilement sur la neige. Par ailleurs la nervure longitudinale supérieure contribue au guidage latéral de la chaussure montée sur le ski de fond laquelle est adaptée à cet effect grâce à la prévision, dans sa semelle, d'une rainure présentant en section droite une forme complémentaire de celle de la ner­vure du ski.Cross-country skis are already known which have a longitudinal rib on their upper face. This longitudinal rib generally has a trapezoidal cross section, in other words it is delimited by a horizontal upper face and two inclined lateral faces, and this rib with trapezoidal cross section connects to the lower part of the ski which has a rectangular cross section, of small height, the short sides of which constitute the edges of the ski Due to the reduced height of these edges, such a cross-country ski slides more easily over snow. Furthermore, the upper longitudinal rib contributes to the lateral guiding of the boot mounted on the cross-country ski which is suitable for this purpose thanks to the provision, in its sole, of a groove having in cross section a shape complementary to that of the rib. ski.

La présente invention concerne des perfectionnements apportés à un tel ski de fond dans le but d'adapter aisément sa rigidité ou sa réponse élastique et d'améliorer sa technique, sans augmenter notablement son poids.The present invention relates to improvements made to such cross-country skiing with the aim of easily adapting its rigidity or its elastic response and improving its technique, without notably increasing its weight.

A cet effet cet ski de fond comportant une nervure longitudinale à sa partie supérieure est caractérisé en ce qu'il comprend de chaque coté de la nervure de guidage longitudinal et au moins dans la zone où une chaussure prend appui sur le ski, un profilé auxiliaire rapporté fixé à la face latérale de la nervure de guidage longitudinale et de hauteur inférieure à cette nervure, ce profilé auxiliaire rapporté présentant une surface supérieure horizontale sur laquelle prend appui la semelle de la chaussure.To this end, this cross-country ski comprising a longitudinal rib at its upper part is characterized in that it comprises on each side of the longitudinal guide rib and at least in the area where a boot is supported on the ski, an auxiliary profile. attached attached to the lateral face of the longitudinal guide rib and of height less than this rib, this auxiliary auxiliary profile having a horizontal upper surface on which the sole of the shoe is supported.

Les profilés auxiliaires rapportés permettent, grâce à un choix judicieux de leur matière et de leur forme, de modifier aisément les caractéristiques d'un ski de fond à nervure de guidage longitudinale, en ce qui concerne notam­ment sa souplesse et sa réponse aux sollicitations.The added auxiliary profiles allow, thanks to a judicious choice of their material and their shape, to easily modify the characteristics of a cross-country ski with a longitudinal guide rib, with regard in particular to its flexibility and its response to stresses.

On décrira ci-après, à titre d'exemples non limita­tifs, diverses formes d'exécution de la présente invention, en référence au dessin annexé sur lequel :

  • La figure 1 est une vue partielle en perspective d'un ski de fond à nervure de guidage longitudinale de cha­que côté de laquelle est fixé un profilé auxiliaire rappor­té.
  • la figure 2 est une vue en coupe verticale et trans­versale, à plus grande échelle, faite suivant la ligne II-II de la figure 1.
  • La figure 3 et 4 sont des vues en coupe verticale et transversale d'un ski de fond dont la nervure de guidage longitudinale est flanquée, de chaque côté, d'un profilé auxiliaire rapporté élastique.
  • La figure 5 à 8 sont des vues en coupe verticale et transversale de diverses variantes d'exécution.
  • Les figures 9 à 12 sont des vues en élévation sché­matiques illustrant l'effet de rappel élastique assuré par chaque profilé auxiliaire rapporté.
  • La figure 13 est une vue en élévation schématique illustrant un ski de fond dans lequel le profilé auxiliaire rapporté s'étend uniquement sous la chaussure de ski.
  • La figure 14 est une vue en élévation schématique d'un ski de fond dans lequel le profilé auxiliaire rapporté s'étend pratiquement sur toute la longueur du ski.
Various embodiments of the present invention will be described below, by way of non-limiting examples, with reference to the appended drawing in which:
  • Figure 1 is a partial perspective view of a cross-country ski with a longitudinal guide rib on each side of which is attached an attached auxiliary profile.
  • FIG. 2 is a view in vertical and transverse section, on a larger scale, taken along the line II-II of FIG. 1.
  • FIGS. 3 and 4 are views in vertical and transverse section of a cross-country ski, the longitudinal guide rib of which is flanked, on each side, by an elastic added auxiliary profile.
  • Figure 5 to 8 are views in vertical and cross section of various alternative embodiments.
  • Figures 9 to 12 are schematic elevational views illustrating the elastic return effect provided by each added auxiliary profile.
  • Figure 13 is a schematic elevational view illustrating a cross-country ski in which the attached auxiliary section extends only under the ski boot.
  • Figure 14 is a schematic elevational view of a cross-country ski in which the attached auxiliary section extends substantially over the entire length of the ski.

Sur les figures 1 et 2 est représenté un ski de fond 1 qui présente, à sa partie supérieure, une nervure de gui­dage longitudinale 2 à section droite trapézoïdale. Cette section droite trapézoïdale n'est toutefois pas limitative et elle pourrait présenter toute autre forme appropriée notamment polygonale ou courbe. Dans la forme d'exécution représentée sur les figures 1 et 2 la section droite de la nervure 2 est contituée par la superposition de deux sec­ tions élémentaires en forme de trapèze isocèle. La nervure de guidage 2 présente ainsi une face supérieure horizontale 2a constituant la petite base de la section trapézoïdale supérieure. laquelle est prolongée par deux faces latérales inclinées 2b, 2c. Cette section trapézoïdale supérieure se raccorde à une section tapézoïdale inférieure dont la peti­te base supérieure correspond à la grande base de la section trapézoïdale supérieure. La section trapézoïdale inférieure comprend deux parois latérales inclinées inférieures 2d, 2e qui sont moins inclinées que les parois latérales inclinées supérieures 2b, 2c. Les deux parois latérales inclinées in­férieures 2d, 2e, se raccordent aux chants verticaux 1a, 1b, de faible hauteur, du ski 1 que s'étendent jusqu'à la semel­le 3 de ce ski.In Figures 1 and 2 is shown a cross-country ski 1 which has, at its upper part, a longitudinal guide rib 2 with a trapezoidal cross section. This trapezoidal cross section is not, however, limiting and it could have any other suitable shape, in particular polygonal or curved. In the embodiment shown in Figures 1 and 2 the cross section of the rib 2 is formed by the superposition of two sec elementary isosceles trapezium. The guide rib 2 thus has a horizontal upper face 2a constituting the small base of the upper trapezoidal section. which is extended by two inclined side faces 2b, 2c. This upper trapezoidal section is connected to a lower tapered section whose small upper base corresponds to the large base of the upper trapezoidal section. The lower trapezoidal section comprises two lower inclined side walls 2d, 2e which are less inclined than the upper inclined side walls 2b, 2c. The two lower inclined side walls 2d, 2e, are connected to the vertical edges 1a, 1b, of low height, of the ski 1 that extend to the sole 3 of this ski.

Suivant l'invention le ski de fond 1 est pourvu, de chaque côté de la nervure de guidage longitudinale 2, d'un profilé auxiliaire rapporté 4 qui est rigide dans le cas de la forme d'exécution représentée sur les figures 1 et 2. Ce profilé est fixé sur les faces latérales inclinées 2d.2c de la nervure 2 par tout moyen approprié, par exemple par col­lage. Le profilé 4 présente une section droite en forme de triangle rectangle et il comprend une face supérieure hori­zontale 4a, une face externe verticale 4b et une face inter­ne inclinée 4c correspondant à l'hypothénuse du triangle rectangle. La section droite triangulaire du profilé auxi­liaire rapporté 4 est telle que sa face externe verticale 4b soit située dans le plan du chant 1a,1b du ski, que sa face interne inclinée 4c s'applique sur l'une des faces inclinées inférieures 2d,2e de la nervure 2 et que sa face horizontale supérieure 4a soit située dans le plan horizontal consti­tuant le plan de séparation des deux sections trapézoïdales de la nervure 2.According to the invention, the cross-country ski 1 is provided, on each side of the longitudinal guide rib 2, with an attached auxiliary profile 4 which is rigid in the case of the embodiment shown in FIGS. 1 and 2. This profile is fixed to the inclined side faces 2d.2c of the rib 2 by any suitable means, for example by gluing. The profile 4 has a cross section in the shape of a right triangle and it includes a horizontal upper face 4a, a vertical external face 4b and an inclined internal face 4c corresponding to the hypotenuse of the right triangle. The triangular cross section of the added auxiliary profile 4 is such that its vertical external face 4b is located in the plane of the edge 1a, 1b of the ski, that its inclined internal face 4c is applied to one of the lower inclined faces 2d, 2e of the rib 2 and that its upper horizontal face 4a is situated in the horizontal plane constituting the plane of separation of the two trapezoidal sections of the rib 2.

Le profilé auxiliaire rapporté 4 rigide peut être plein ainsi qu'il est représenté dans la partie gauche de la figure 2 ou creux comme il est représenté dans la partie droite de cette figure, à condition que dans ce dernier cas la paroi du profilé soit suffisamment épaisse pour assurer la rigidité voulue. La prévision, de part et d'autre de la nervure de guidage 2, de profilés auxiliaires rapportés rigides 4 permet de modifier à volonté la caractéristique d'ensemble de rigidité ou d'élasticité du ski de fond 1, suivant les desiderata.The rigid auxiliary auxiliary profile 4 can be full as shown in the left part of Figure 2 or hollow as shown in the right part of this figure, provided that in the latter case the wall of the profile is sufficiently thick to provide the desired rigidity. The forecast on both sides of the guide rib 2, of rigid attached auxiliary sections 4 makes it possible to modify at will the overall characteristic of rigidity or elasticity of the cross-country ski 1, according to the wishes.

La figure 2 représente également la semelle 5 d'une chaussure de ski qui est pourvue, dans sa face inférieure, d'une rainure longitudinale 6 venant coiffer la nervure de guidage 2. Cette semelle 5 prend appui sur les faces hori­zontales supérieures 4a des profilés auxiliaires rapportés rigides 4 et le fond de la rainure 6 est situé un peu au­dessus de la face supérieure 2a de la nervure 2, du fait que la profondeur p de cette rainure 6 est légèrement supérieure à la hauteur h de la section trapézoïdale supérieure 2a,2b,2c de la nervure 2.FIG. 2 also shows the sole 5 of a ski boot which is provided, in its lower face, with a longitudinal groove 6 which covers the guide rib 2. This sole 5 is supported on the upper horizontal faces 4a of the profiles rigid added auxiliaries 4 and the bottom of the groove 6 is located slightly above the upper face 2a of the rib 2, owing to the fact that the depth p of this groove 6 is slightly greater than the height h of the upper trapezoidal section 2a, 2b, 2c of the rib 2.

Dans la variante d'exécution de l'invention repré­sentée sur les figures 3 et 4 la ski de fond 1 porte. de chaque côté de la nervure de guidage longitudinale 2, un profilé auxiliaire rapporté 7 en matière souple et élasti­que, par exemple en caoutchouc. Par conséquent lorsque le skieur exerce une forte pression sur son ski, au moment de l'appui au sol, le matériau élastique de chaque profilé auxiliaire rapporté 7 est comprimé par la semelle 5 de la chaussure de ski, ainsi est représenté sur la figure 4. Cette compression est rendue possible du fait que la pro­fondeur p de la rainure 6 de la semelle 5 est supérieure à la hauteur h de la section trapézoïdale supérieure 2a, 2b,2c, de la nervure 2, si bien que la semelle 6 peut s'abaisser par rapport à cette nervure, en comprimant les deux profilés auxiliaires rapportés 7. Cette compression se traduit donc ensuite, lorsque le skieur relâche sa pression sur le ski au début de la course d'avance de ce ski, par un retour élas­tique de matériau du profilé 7 à l'état détendu lequel con­tribue ainsi à l'action du pied du skieur.In the alternative embodiment of the invention shown in Figures 3 and 4 the cross-country ski 1 door. on each side of the longitudinal guide rib 2, an auxiliary auxiliary profile 7 made of flexible and elastic material, for example rubber. Consequently when the skier exerts a strong pressure on his ski, at the time of the support on the ground, the elastic material of each added auxiliary profile 7 is compressed by the sole 5 of the ski boot, as is represented in FIG. 4 This compression is made possible because the depth p of the groove 6 of the sole 5 is greater than the height h of the upper trapezoidal section 2a, 2b, 2c, of the rib 2, so that the sole 6 can s lower with respect to this rib, by compressing the two added auxiliary sections 7. This compression therefore results, when the skier releases his pressure on the ski at the start of the advance travel of this ski, by an elastic return of profile material 7 in the relaxed state which thus contributes to the action of the skier's foot.

Dans la variante d'exécution de l'invention repré­sentée sur la figure 5 la nervure de guidage longitudinale 2 a une section droite présentant la forme d'un seul trapèze isocèle. Autrement dit les faces latérales inclinées 2b,2c s'étendent vers le bas, avec la même pente, jusqu'à faible distance de la semelle 3, et elles sont, à cet endroit, rac­cordées à des ailes horizontales 2f,2g de petite largeur, qui s'étendent vers l'extérieur jusqu'aux chants 1a,1b. De ce fait chaque profilé auxiliaire rapporté 8 présente une section droite en forme de trapèze rectangle défini par une face supérieure horizontale 8a, une face externe verticale 8b située dans le plan vertical du chant 1a, 1b, une face inférieure horizontale 8c en contact avec l'aile horizontale inférieure 2f,2g et de même largeur que celle-ci, et une face interne inclinée 8d, de même inclinaison que les face latérales inclinées 2b,2c de la nervure 2, et en contact avec la partie inférieure de ces faces. Chaque profilé 8 est représenté comme étant rigide sur la figure 5 et il peut être soit plein (partie gauche de la figure 5), soit creux (partie droite de la figure 5).In the alternative embodiment of the invention shown in Figure 5 the longitudinal guide rib 2 has a cross section having the shape of a single isosceles trapezoid. In other words, the inclined side faces 2b, 2c extend downward, with the same slope, until low. distance from the sole 3, and they are, at this point, connected to horizontal wings 2f, 2g of small width, which extend outwards to the edges 1a, 1b. As a result, each added auxiliary profile 8 has a cross section in the shape of a rectangular trapezoid defined by a horizontal upper face 8a, a vertical external face 8b situated in the vertical plane of the edge 1a, 1b, a horizontal lower face 8c in contact with the 'lower horizontal wing 2f, 2g and of the same width as the latter, and an inclined internal face 8d, of the same inclination as the inclined lateral faces 2b, 2c of the rib 2, and in contact with the lower part of these faces. Each profile 8 is shown as being rigid in FIG. 5 and it can be either full (left part of FIG. 5) or hollow (right part of FIG. 5).

Les figures 6 et 7 représentent une variante d'exé­cution dans laquelle les profilés auxiliaires rapportés 9 ont la même section droite trapèzoïdale que les profilés 8 mais sont réalisés en une matière souple et élastique, ce qui permet leur compression par la semelle 5 de la chaussure comme il est représenté sur la figure 7.Figures 6 and 7 show an alternative embodiment in which the added auxiliary profiles 9 have the same trapezoidal cross section as the profiles 8 but are made of a flexible and elastic material, which allows their compression by the sole 5 of the shoe as shown in Figure 7.

Dans la variante d'exécution de l'invention repré­sentée sur la figure 8 le ski de fond comprend deux profilés auxiliaires rapportés 11,12 de section droite trapèzoïdale, lesquels sont disposés de part et d'autre de la nervure de guidage longitudinale et sont reliés l'un à l'autre. Plus particulièrement les deux profilés auxiliaires rapportés 11,12 constituent les parties latérales extrêmes d'un seul et même profilé qui comprend une partie centrale supérieure 13 de forme trapézoïdale, évasée vers le bas, laquelle vient coiffer la partie supérieure d'un profilé interne 14 de section droite également trapézoïdale, évasée vers la bas et se raccordant à la semelle 3 du ski. Les deux profilés laté­raux 11,12 comportent respectivement des faces horizontales supérieures 11a,12a, qui se raccordent à des faces verti­cales externes 11b,12b consituant les chants du ski et qui se terminent par des ailes horizontales inférieures 11c,12c s'étendant vers l'intérieur. La partie centrale trapèzoïdale supérieure 13 comprend, elle, une face horizontale supérieu­re 13a et deux faces latérales inclinées 13b,13c qui se raccordent respectivement aux faces horizontales supérieures 11a,12a des deux profilés latéraux 11,12.In the variant embodiment of the invention shown in FIG. 8, the cross-country ski comprises two additional auxiliary profiles 11, 12 of trapezoidal cross section, which are arranged on either side of the longitudinal guide rib and are connected to one another. More particularly, the two added auxiliary profiles 11, 12 constitute the extreme lateral parts of a single profile which comprises an upper central part 13 of trapezoidal shape, flared downwards, which covers the upper part of an internal profile 14 also of trapezoidal cross section, flared downward and connecting to the sole 3 of the ski. The two lateral sections 11, 12 respectively have upper horizontal faces 11a, 12a, which are connected to external vertical faces 11b, 12b constituting the edges of the ski and which end in lower horizontal wings 11c, 12c extending towards the inside. The central trapezoidal part upper 13 comprises, for its part, an upper horizontal face 13a and two inclined lateral faces 13b, 13c which are respectively connected to the upper horizontal faces 11a, 12a of the two lateral profiles 11,12.

Le profilé interne 14 de section droite trapézoïdale comprend une face horizontale supérieure 14a sur laquelle est plaquée la face horizontale supérieure 13a de la partie centrale supérieure trapézoïdale 13, et deux faces latérales inclinées 14b, 14c sur les parties supérieures desquelles sont plaquées les faces latérales inclinées 13b, 13c de la partie centrale supérieure trapèzoïdale 13. Ces faces in­clinées latérales 14b,14c se terminent, à leurs extrémités inférieures, par des ailes 14d,14e, s'étendant vers l'ex­térieur et sur lesquelles sont plaquées les ailes inférieu­res internes 11c,12c des profilés 11,12. Les volumes délimi­tés à l'intérieur du ski peuvent laissés vides ou au contraire ils peuvent être remplis d'un matériau rigide mais léger telle qu'une mousse.The internal profile 14 of trapezoidal cross section comprises an upper horizontal face 14a on which is pressed the upper horizontal face 13a of the upper trapezoidal central part 13, and two inclined lateral faces 14b, 14c on the upper parts of which the inclined lateral faces are pressed 13b, 13c of the trapezoidal upper central part 13. These inclined lateral faces 14b, 14c end, at their lower ends, by wings 14d, 14e, extending outwards and on which the internal lower wings 11c are pressed. , 12c profiles 11,12. The volumes delimited inside the ski can be left empty or on the contrary they can be filled with a rigid but light material such as foam.

Les figures 9 et 10 illustrent la façon dont un profilé auxiliaire rapporté élastique, tel que le profilé 7, cède et réagit lorsque une chaussure de ski 15, qui est articulée, par rapport au ski de fond 1, autour d'un axe horizontal et transversal 16, pivote autour de cet axe, par soulèvement du talon au moment de l'appui sur le ski pour l'avancement de l'autre ski. On voit, sur les figures 9 et 10, que le bout 5a de la semelle 5 pénètre légèrement dans le profilé auxiliaire rapporté élastique 7, lors du pivo­tement de la chaussure 15 dans le sens inverse des aiguilles d'une montre autour de l'axe 16, et que la déformation élas­tique du profilé 7 se traduit par un effort de rappel f tendant à ramener la chausure 15 en position horizontale sur le ski.FIGS. 9 and 10 illustrate how an elastic added auxiliary profile, such as profile 7, gives way and reacts when a ski boot 15, which is articulated, relative to the cross-country ski 1, about a horizontal axis and transverse 16, pivots about this axis, by lifting the heel when pressing on the ski for advancing the other ski. It can be seen, in FIGS. 9 and 10, that the end 5a of the sole 5 penetrates slightly into the elastic added auxiliary profile 7, during the pivoting of the shoe 15 anticlockwise around the axis 16, and that the elastic deformation of the profile 7 results in a return force f tending to bring the shoe 15 in a horizontal position on the ski.

Dans la variante d'exécution de l'invention repré­sentée sur les figures 11 et 12 la partie antérieure 5a de la semelle 5 de la chaussure est en butée contre une face inclinée d'une partie surélevée 7a du prodilé auxiliaire rapporté élastique 7. De ce fait le mouvement de pivotement de la chaussure 15, dans le sens inverse des aiguilles d'une montre autour de l'axe transversal 16, se traduit par l'en­foncement, par le bout de la semelle 5a, de la face inclinée de la partie surélevée élastique 7a laquelle forme un léger bourrelet 17, fortement exagéré sur la figure 12, en saillie par rapport à la surface supérieure, ce bourrelet 17 con­tribuant au rappel élastique de la chaussure à plat sur le ski.In the variant embodiment of the invention shown in FIGS. 11 and 12, the front part 5a of the sole 5 of the shoe is in abutment against an inclined face of a raised part 7a of the elastic added auxiliary product 7. From this makes the pivoting movement of the shoe 15, anticlockwise shows around the transverse axis 16, results in the depression, by the end of the sole 5a, of the inclined face of the elastic raised part 7a which forms a slight bead 17, strongly exaggerated in FIG. 12, projecting relative to the upper surface, this bead 17 contributing to the elastic return of the boot flat on the ski.

Comme on peut le voir sur les figures 13 et 14, le profilé auxiliaire rapporté, qu'il soit élastique ou rigide, peut s'étendre uniquement sous la chaussure 15 (figure 13) soit sur pratiquement toute la longueur du ski de fond 1 (figure 14) ou encore sur une partie seulement de cette longueur.As can be seen in FIGS. 13 and 14, the added auxiliary profile, whether elastic or rigid, can extend only under the boot 15 (FIG. 13) or over practically the entire length of the cross-country ski 1 ( Figure 14) or only over part of this length.

Dans toutes les formes d'exécution de l'invention qui ont été décrites ci-dessus, les deux profilés auxiliai­res rapportés situés respectivement des deux côtés de la nervure de guidage longitudinale 2 peuvent être de même type ou éventuellement de types différents, par exemple rigide d'un côté de la nervure 2 et souple et élastique de l'autre.In all of the embodiments of the invention which have been described above, the two added auxiliary sections situated respectively on the two sides of the longitudinal guide rib 2 can be of the same type or possibly of different types, for example rigid on one side of the rib 2 and flexible and elastic on the other.

Claims (14)

1.- Ski de fond comportant une nervure de guidage longitudinale à sa partie supérieure, caractérisé en ce qu'il comprend, de chaque côté de la nervure de guidage longitudinale (2) et au moins dans la où une chaussure prend appui sur le ski, un profilé auxiliaire rapporté (4,7,8,9;11,12), fixé à la face latérale de la nervure de guidage longitudinale (2) et de hauteur inférieure à cette nervure, ce profilé auxiliaire rapporté (4,7,8,9;11,12) présentant une surface supérieure horizontale (4a;11a;12a) sur laquelle prend appui la semelle de la chaussure.1.- Cross-country ski comprising a longitudinal guide rib at its upper part, characterized in that it comprises, on each side of the longitudinal guide rib (2) and at least in the one where a boot is supported on the ski , an additional auxiliary profile (4,7,8,9; 11,12), fixed to the lateral face of the longitudinal guide rib (2) and of height less than this rib, this additional auxiliary profile (4,7, 8.9; 11.12) having a horizontal upper surface (4a; 11a; 12a) on which the sole of the shoe is supported. 2.- Ski de fond suivant la revendication 1 carac­térisé en ce que chaque profilé auxiliaire rapporté (4,7,8,9) présente une face interne inclinée plaquée contre une face latérale inclinée (2b,2c,2d,2e) de la nervure de guidage longitudinale (2).2. Cross-country ski according to claim 1, characterized in that each additional auxiliary profile (4,7,8,9) has an inclined internal face pressed against an inclined lateral face (2b, 2c, 2d, 2e) of the rib. longitudinal guide (2). 3.- Ski de fond suivant la revendication 2 dans lequel les faces inclinées (2d, 2e) de la nervure (2) se raccordent directement aux chants (1a, 1b) du ski, caractéri­sé en ce que chaque profilé auxiliaire rapporté (4,7) a une section droite en forme de triangle rectangle dont l'hypo­thénuse correspond à la face interne inclinée (4c) du pro­filé.3. Cross-country ski according to claim 2, in which the inclined faces (2d, 2e) of the rib (2) are connected directly to the edges (1a, 1b) of the ski, characterized in that each added auxiliary profile (4, 7) has a cross section in the shape of a right triangle whose hypotenuse corresponds to the inclined internal face (4c) of the profile. 4.- Ski de fond suivant la revendication 2 dans lequel les faces latérales inclinées (2b,2c) de la nervure (2) sont prolongées, à leurs extrémités inférieures, par des ailes horizontales inférieures (2f, 2g) s'étendant vers l'ex­térieur et se raccordant aux chants (1a,1b) du ski, caracté­risé en ce que chaque profilé auxiliaire rapporté (8,9) a une section droite en forme de trapèze rectangle dont la petite base (8c) est en contact avec l'aile horizontale inférieure (2f, 2g) de la nervure (2) et le côté incliné constitue la face interne en contact avec la face latérale inclinée (2b,2c) de la nervure (2).4. Cross-country ski according to claim 2, in which the inclined lateral faces (2b, 2c) of the rib (2) are extended, at their lower ends, by lower horizontal wings (2f, 2g) extending towards the exterior and connecting to the edges (1a, 1b) of the ski, characterized in that each auxiliary auxiliary profile (8,9) has a straight section in the shape of a rectangular trapezium whose small base (8c) is in contact with the lower horizontal wing (2f, 2g) of the rib (2) and the inclined side constitutes the internal face in contact with the inclined lateral face (2b, 2c) of the rib (2). 5.- Ski de fond suivant l'une quelconque des reven­dications précédentes caractérisé en ce que le profilé auxi­liaire rapporté (4,8) est réalisé en un matériau rigide.5. Cross-country ski according to any one of the preceding claims, characterized in that the added auxiliary profile (4,8) is made of a rigid material. 6.- Ski de fond suivant l'une quelconque des reven­dications 1 à 5 caractérisé en ce que le profilé auxiliaire rapporté (7,9) est réalisé en un matériau souple et élasti­que.6. Cross-country ski according to any one of Claims 1 to 5, characterized in that the added auxiliary profile (7, 9) is made of a flexible and elastic material. 7.- Ski de fond suivant l'une quelconque des reven­dications précédentes caractérisé en ce que le profilé auxi­liaire rapporté (4,7,8,9) est plein.7. Cross-country ski according to any one of the preceding claims, characterized in that the added auxiliary profile (4,7,8,9) is full. 8.- Ski de fond suivant l'une quelconque des reven­dications 1 à 7 caractérisé en ce que le profilé auxiliaire rapporté (4,7,8,9) est creux.8. Cross-country ski according to any one of Claims 1 to 7, characterized in that the added auxiliary profile (4,7,8,9) is hollow. 9.- Ski de fond suivant la revendication 1 carac­térisé en ce que les deux profilés auxiliaires rapportés (11,12), disposés de part et d'autre de la nervure de guida­ge longitudinale (2), sont reliés l'un à l'autre.9. Cross-country ski according to claim 1, characterized in that the two added auxiliary sections (11,12), arranged on either side of the longitudinal guide rib (2), are connected to one other. 10.- Ski de fond suivant la revendication 9 carac­térisé en ce que les deux profilés auxiliaires rapportés (11,12) constituent les parties latérales extrêmes d'un seul et même profilé qui comprend une partie centrale supérieure (13) de forme trapézoïdale, évasée vers le bas, laquelle vient coiffer la partie supérieure d'un profilé interne (14) de section droite également trapézoïdale, évasée vers le bas et se raccordant à la semelle (3) du ski.10.- Cross-country ski according to claim 9 characterized in that the two added auxiliary sections (11,12) constitute the extreme lateral parts of a single section which comprises an upper central part (13) of trapezoidal shape, flared downwards, which comes to cover the upper part of an internal profile (14) of also trapezoidal cross-section, flared downwards and connecting to the sole (3) of the ski. 11. Ski de fond suivant la revendication 10 ca­ractérisé en ce que les deux profilés latéraux (11, 12) comportent respectivement des faces horizontales supérieures (11a,12a), qui se raccordent à des faces verticales externes (11b,12b) constituant les chants du ski et qui se terminent par des ailes horizontales inférieures (11c,12c) s'étendant vers l'intérieur, la partie centrale trapézoïdale supérieure (13) comprend une face horizontale supérieure (13a) et deux faces latérales inclinées (13b,13c) qui se raccordent res­pectivement aux faces horizontales supérieures (11a,12a) des deux profilés latéraux (11,12), le profilé interne (14) de section droite trapézoïdale comprend une face horizontale supérieure (13a) de la partie centrale supérieure trapé­zoïdale (13), et deux faces latérales inclinées (14b, 14c) sur les parties supérieures desquelles sont plaquées les faces latérales inclinées (13b, 13c) de la partie centrale supérieure trapézoïdale (13), et ces faces inclinées latéra­les (14b,14c) se terminent, à leurs extrémités inférieures, par des ailes (14d,14e), s'étendant vers l'extérieur et sur lesquelles sont plaquées les ailes inférieures internes (11c,12c) des profiles (11,12).11. Cross-country ski according to claim 10 characterized in that the two lateral profiles (11, 12) respectively have upper horizontal faces (11a, 12a), which are connected to external vertical faces (11b, 12b) constituting the edges of the ski and which end in lower horizontal wings (11c, 12c) extending inwards, the upper trapezoidal central part (13) comprises an upper horizontal face (13a) and two inclined lateral faces (13b, 13c) which are connected respectively to the upper horizontal faces (11a, 12a) of the two lateral profiles (11,12), the internal profile (14) of trapezoidal cross section comprises an upper horizontal face (13a) of the trapezoidal upper central part (13) , and two inclined side faces (14b, 14c) on the upper parts of which are pressed the inclined lateral faces (13b, 13c) of the trapezoidal upper central part (13), and these lateral inclined faces (14b, 14c) end, at their lower ends, with wings (14d, 14e), extending towards the exterior and on which are placed the inner lower wings (11c, 12c) of the profiles (11,12). 12.- Ski de fond suivant l'une quelconque des re­vendications précédentes caractérisé en ce que le profilé auxiliaire rapporté (7) s'étend uniquement sous la zone d'appui de la chaussure (15).12. Cross-country ski according to any one of the preceding claims, characterized in that the added auxiliary profile (7) extends only under the support zone of the boot (15). 13.- Ski de fond suivant l'une quelconque des re­vendications 1 à 1 caractérisé en ce que le profilé auxi­liaire rapporté (7) s'étend sur toute la longueur du ski ou sur une partie de cette longueur.13. Cross-country ski according to any one of claims 1 to 1 characterized in that the added auxiliary profile (7) extends over the entire length of the ski or over a part of this length. 14.- Ski de fond suivant l'une quelconque des re­vendications précédentes caractérisé en ce que le profilé auxiliaire rapporté (4,7,8,9;11,12) présente une face exter­ne verticale (4b;11b;12b;) située dans le plan vertical du chant (1a,1b) du ski.14.- Cross-country ski according to any one of the preceding claims, characterized in that the additional auxiliary profile (4,7,8,9; 11,12) has a vertical external face (4b; 11b; 12b;) located in the vertical plane of the edge (1a, 1b) of the ski.
EP88400257A 1987-02-05 1988-02-04 Cross-country ski Expired - Lifetime EP0278859B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88400257T ATE65030T1 (en) 1987-02-05 1988-02-04 CROSS-COUNTRY SKI.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8701420 1987-02-05
FR878701420A FR2610526B1 (en) 1987-02-05 1987-02-05 CROSS-COUNTRY SKI COMPRISING A LONGITUDINAL RIB PROJECTING IN RELATION TO ITS TOP SIDE

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EP0278859A1 true EP0278859A1 (en) 1988-08-17
EP0278859B1 EP0278859B1 (en) 1991-07-10

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EP88400256A Expired - Lifetime EP0283331B1 (en) 1987-02-05 1988-02-04 Ski having a longitudinal upper rib

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EP (2) EP0278859B1 (en)
AT (2) ATE76319T1 (en)
DE (2) DE3863552D1 (en)
FI (2) FI884576A0 (en)
FR (1) FR2610526B1 (en)
NO (1) NO164881C (en)
WO (2) WO1988005676A1 (en)

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FR2634131A1 (en) * 1988-07-13 1990-01-19 Salomon Sa SHOE AND SOLE, IN PARTICULAR FOR BASE SKIING
WO1990003205A1 (en) * 1988-09-23 1990-04-05 Head Sportgeräte Gesellschaft M.B.H. & Co. Ohg Ski
US4993741A (en) * 1988-11-14 1991-02-19 Salomon S.A. Lateral guidance device for a cross-country ski
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US5249819A (en) * 1988-09-23 1993-10-05 Head Sportgerate Gesellschaft M.B.H. & Co., Ohg Ski having a hollow body of uniform width

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AT405137B (en) * 1995-02-07 1999-05-25 Fischer Gmbh Langlauf ski
FR2834906B1 (en) * 2002-01-24 2004-04-02 Rossignol Sa IMPROVEMENT FOR SNOW SNOWBOARD
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FR2848868B1 (en) * 2002-12-19 2007-01-19 Salomon Sa SLIDING OR ROLLING BOARD
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FR2634131A1 (en) * 1988-07-13 1990-01-19 Salomon Sa SHOE AND SOLE, IN PARTICULAR FOR BASE SKIING
US4959913A (en) * 1988-07-13 1990-10-02 Salomon S.A. Cross-country ski shoe for use with an elastic biasing element
WO1990003205A1 (en) * 1988-09-23 1990-04-05 Head Sportgeräte Gesellschaft M.B.H. & Co. Ohg Ski
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US4993741A (en) * 1988-11-14 1991-02-19 Salomon S.A. Lateral guidance device for a cross-country ski
FR2659025A1 (en) * 1990-03-02 1991-09-06 Salomon Sa Device for returning a ski boot onto a ski
FR2660569A1 (en) * 1990-04-06 1991-10-11 Salomon Sa FIXING FOR BACKGROUND SKIING.
US5224730A (en) * 1990-04-06 1993-07-06 Salomon S.A. Cross country ski binding

Also Published As

Publication number Publication date
NO164881C (en) 1990-11-28
FR2610526B1 (en) 1989-12-01
ATE76319T1 (en) 1992-06-15
WO1988005675A1 (en) 1988-08-11
US5064214A (en) 1991-11-12
FI884576A (en) 1988-10-05
ATE65030T1 (en) 1991-07-15
WO1988005676A1 (en) 1988-08-11
FR2610526A1 (en) 1988-08-12
DE3863552D1 (en) 1991-08-14
US4957304A (en) 1990-09-18
FI884577A (en) 1988-10-05
NO884357D0 (en) 1988-09-30
EP0283331B1 (en) 1992-05-20
NO884357L (en) 1988-11-29
EP0283331A1 (en) 1988-09-21
EP0278859B1 (en) 1991-07-10
FI884576A0 (en) 1988-10-05
FI884577A0 (en) 1988-10-05
DE3871199D1 (en) 1992-06-25
NO164881B (en) 1990-08-20

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