EP0692203A1 - Sportshoe, in particular skiboot - Google Patents
Sportshoe, in particular skiboot Download PDFInfo
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- EP0692203A1 EP0692203A1 EP95107469A EP95107469A EP0692203A1 EP 0692203 A1 EP0692203 A1 EP 0692203A1 EP 95107469 A EP95107469 A EP 95107469A EP 95107469 A EP95107469 A EP 95107469A EP 0692203 A1 EP0692203 A1 EP 0692203A1
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- Prior art keywords
- shoe
- median plane
- toe
- ski
- sole
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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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- A—HUMAN NECESSITIES
- A43—FOOTWEAR
- A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
- A43B5/00—Footwear for sporting purposes
- A43B5/04—Ski or like boots
- A43B5/0415—Accessories
- A43B5/0417—Accessories for soles or associated with soles of ski boots; for ski bindings
Definitions
- the invention relates to a boot intended to be retained in a releasable manner on a gliding board, and in particular an alpine ski boot. It also relates to a pair of shoes.
- An alpine ski boot is generally retained in abutment against a ski by a front binding element and a rear binding element.
- Each fastening element has a movable retaining jaw against the return force of a spring, in order to release the shoe beyond a determined stress threshold.
- the tips of the shoe which include the end of the sole and the lower part of the upper have a symmetrical shape with respect to a vertical and longitudinal plane.
- This thus defined shape can be associated with different models of fasteners. In addition, it can be indifferently associated with one or the other of the two skis of a pair.
- the stress threshold beyond which the fastening element releasing the shoe is the same as the torsional stress, tends to cause the shoe to exit towards the inside of the foot or towards the outside.
- the knee of a human being is more or less resistant to a torsional stress exerted on the leg, according to the direction thereof.
- the knee is more fragile for an inward rotation of the foot, ie towards the other foot.
- the problem posed by the invention is to propose a shoe which improves the protection of the knee.
- Another object of the invention is to propose a shoe which remains compatible with the fastening elements of the market, in the same way as a standardized shoe.
- Another object of the invention is to propose a shoe which is simple to produce.
- the shoe is made more easily released on one side than the other.
- the shoe escapes the fastening element more easily in one direction of stress than in the other.
- This first direction advantageously corresponds to the direction where the skier's knee is the most fragile.
- the shape of the front toe of the shoe is adapted to make the shoe more easily releasable on one side.
- the friction between a part of the end piece and the fixing element is reduced.
- FIGS 1 and 2 illustrate the state of the art.
- FIG. 3 represents a top view and in partial section of the front of a shoe according to a first embodiment of the invention.
- FIG. 4 illustrates in the same mode of presentation a second mode of implementation of the invention.
- FIG. 5 illustrates an alternative embodiment
- Figure 6 illustrates another alternative embodiment.
- Figures 1 and 2 illustrate the state of the art and represent a shoe 1 with a sole 2 as defined by the ISO 5355 standard.
- the sole 2 has in particular a front end piece 3 and a rear end piece 4.
- the front toe 3 which is more particularly concerned with the invention comprises a lower sole part delimited by a sole surface 5 and an upper part of the upper delimited by an upper surface 6 situated on the upper of the shoe.
- the shape of these two surfaces 5 and 6 is defined by the standard.
- the front toe of the shoe is retained in the front fastening element rather by its sole part, or rather by its upper part, that is to say that the jaw of the element of attachment is in contact either with the sole surface 5, or with the upper of the upper 6.
- the fastening element engages on the upper of the shoe, and in the second case a grip on the sole.
- Figure 2 shows the outline of the front end, seen from above.
- surfaces 5 and 6 are symmetrical with respect to the median vertical plane, the trace of which is shown diagrammatically at 8 in FIG. 2.
- Surface 5, seen from above, has in its central part the shape of an arc of circle of large radius, which is bordered laterally on each side by an arc of a circle of smaller radius.
- the rod surface 6, seen from above, has the shape of an arc of a large radius.
- the jaw of the fastening element retains the shoe by a contact located in these areas, either by a grip on the upper, or by a grip on the sole.
- a lateral stress exerted by the shoe on the jaw beyond the release threshold of the fastening element causes lateral movement of the jaw.
- the toe of the shoe slides along a lateral edge of the jaw, until it completely escapes the latter. The shoe is thus released.
- the shoe is in contact with the jaw only in the standardized area of the front toe, and more precisely only in a right or left part of the upper or sole.
- Figure 3 shows a top view of the front toe of a shoe according to a first embodiment of the invention.
- This figure shows at 15 the sole surface, and at 16 the upper surface of the toe. Also shown in 18 is the trace of the median plane, and in 19a, 19b, 20a, 20b, the tangents to the sole surface and the upper surface, which approximately locate the contact zones between the toe and its element. detention.
- the upper and / or sole surfaces are made asymmetrical with respect to the median plane.
- Figure 3 shows on the left side of the median plane 18, surface portions 15b and 16b of traditional shape.
- the mixed lines 15 'and 16' represent the symmetrical image of the portions 15b and 16b with respect to the median plane 18.
- the surfaces 15 and 16 have a straight portion 15a and 16a, which is substantially set back relative to the corresponding symmetrical portion 15 'and 16'.
- the surfaces 15a and 16a are set back between the zones of tangency with the planes 19a and 20a and the median plane so as not to modify the conditions under which the shoe is retained in the centered position by a retaining element.
- the general curvature of the surfaces 15 or 16 does not exhibit any marked discontinuity in this recessed area.
- the straight portion of the upper or sole surface progressively moves away from the symmetrical portion and then gradually approaches it, between the zone of contact with the tangents 19a and 20a and the trace of the median plane.
- the shoe of Figure 3 behaves as follows. In the centered position, the shoe is retained in a fastening element in the same way as a traditional shoe.
- the shoe requests the fastening element by its straight portion, it will be able to escape more easily from the jaw of the fastening, thanks to its surface of contact with the fastening element which is set back with respect to a shoe. traditional. The release of the shoe is therefore facilitated on one side relative to the other.
- shrinkage is present on both the upper surface and the sole surface, so that easier release is achieved with both standard fasteners to grip on rod than those with grip on sole. It goes without saying that the shrinkage could be present only on the upper surface, or only on the sole surface.
- the other shoe has one or more recesses of the same type, but on the other side of the shoe.
- the two knees of the skier are better protected by an easier release of the boot on the side where the knee is more fragile. It should be noted that this result is achieved without requiring a pairing of the skis with the boots, that is to say that the skier does not need to locate a right ski and a left ski, he can put on each ski indifferently on the right side or on the left side.
- Figure 4 relates to another embodiment of the invention.
- the sole 25 and upper 26 surfaces have a traditional shape.
- attempts have been made to improve the sliding conditions of the end piece, that is to say to reduce the friction between the end piece and the jaw.
- the tip has on the right side of the median plane 28 a recess 21 at the sole, and 22 at the tip.
- the recesses 21 and 22 extend over the height of the standardized zone, over substantially the length of the upper and sole surface portion located on one side of the median plane and they are filled with a plate of low friction material.
- FIG. 5 represents the recesses of the upper and of the sole occupied by a series of vertical rollers or needles shown diagrammatically at 29.
- the portion of the tip with low friction is the external surface 35a, 36a of an insert 33 made of a material having a lower friction than the rest of the tip.
- a ski boot shell is made of polyurethane or polypropylene.
- the insert can be made of this type of material but with the addition of fillers of graphite, polytetrafluoroethylene or silicone oil.
- a two-component insert having on the surface a low friction material embedded in a support material having good mechanical characteristics.
- Another possibility would consist in molding the shell of the shoe or the toe in one piece, and before the injection of depositing at the bottom of the mold, on one side of the toe, a plate of low friction material on which the material of the shell or the end piece would be injected.
Abstract
Description
L'invention concerne une chaussure destinée à être retenue en appui, de façon libérable sur une planche de glisse, et notamment une chaussure de ski alpin. Elle concerne également une paire de chaussures.The invention relates to a boot intended to be retained in a releasable manner on a gliding board, and in particular an alpine ski boot. It also relates to a pair of shoes.
Une chaussure de ski alpin est généralement retenue en appui contre un ski par un élément de fixation avant et un élément de fixation arrière. Chaque élément de fixation présente une mâchoire de retenue mobile contre la force de rappel d'un ressort, afin de libérer la chaussure au-delà d'un seuil de sollicitation déterminé.An alpine ski boot is generally retained in abutment against a ski by a front binding element and a rear binding element. Each fastening element has a movable retaining jaw against the return force of a spring, in order to release the shoe beyond a determined stress threshold.
Autrefois, une chaussure était prévue pour fonctionner avec des éléments de fixation d'un type particulier. Par exemple le brevet US 3,709,509 montre une chaussure dont les embouts présentent une saillie qui coopère avec un évidement correspondant de la mâchoire de l'élément de fixation. De telles chaussures ne pouvaient être utilisées qu'avec des éléments de fixation spécifiques.In the past, a shoe was intended to operate with fasteners of a particular type. For example, US Patent 3,709,509 shows a shoe whose tips have a projection which cooperates with a corresponding recess in the jaw of the fastening element. Such shoes could only be used with specific fasteners.
Plus récemment, une norme définissant la forme des embouts avant et arrière de la chaussure a été adoptée. Dans le système des normes ISO, cette norme est identifiée sous le numéro ISO 5355.More recently, a standard defining the shape of the front and rear tips of the shoe has been adopted. In the ISO standards system, this standard is identified under the number ISO 5355.
Selon cette norme, les embouts de la chaussure qui comprennent l'extrémité de la semelle et la partie inférieure de la tige présentent une forme symétrique par rapport à un plan vertical et longitudinal.According to this standard, the tips of the shoe which include the end of the sole and the lower part of the upper have a symmetrical shape with respect to a vertical and longitudinal plane.
Cette forme ainsi définie peut être associée à différents modèles d'éléments de fixation. En outre, elle peut être indifféremment associée à l'un ou l'autre des deux skis d'une paire.This thus defined shape can be associated with different models of fasteners. In addition, it can be indifferently associated with one or the other of the two skis of a pair.
Ainsi, au cours de la pratique du ski, pour une sollicitation en torsion de la chaussure correspondant à une libération latérale de l'embout avant hors de l'élément de fixation avant, le seuil de sollicitation au-delà duquel l'élément de fixation libère la chaussure est le même que la sollicitation en torsion, tende à faire sortir la chaussure vers l'intérieur du pied ou vers l'extérieur.Thus, during skiing, for a torsional stress on the boot corresponding to lateral release of the front toe from the front fastening element, the stress threshold beyond which the fastening element releasing the shoe is the same as the torsional stress, tends to cause the shoe to exit towards the inside of the foot or towards the outside.
Or, il est connu que le genou d'un être humain est plus ou moins résistant à une sollicitation en torsion exercée sur la jambe, selon le sens de celle-ci. En particulier, le genou est plus fragile pour une rotation du pied vers l'intérieur, c'est à dire vers l'autre pied.However, it is known that the knee of a human being is more or less resistant to a torsional stress exerted on the leg, according to the direction thereof. In particular, the knee is more fragile for an inward rotation of the foot, ie towards the other foot.
Le problème posé par l'invention est de proposer une chaussure qui améliore la protection du genou.The problem posed by the invention is to propose a shoe which improves the protection of the knee.
Un autre but de l'invention est de proposer une chaussure qui reste compatible avec les éléments de fixation du marché, au même titre qu'une chaussure normalisée.Another object of the invention is to propose a shoe which remains compatible with the fastening elements of the market, in the same way as a standardized shoe.
Un autre but de l'invention est de proposer une chaussure qui soit simple à réaliser.Another object of the invention is to propose a shoe which is simple to produce.
Ces buts et d'autres buts qui apparaîtront au cours de la description qui va suivre sont atteints par l'invention telle qu'elle est définie dans la revendication 1.These and other objects which will appear during the following description are achieved by the invention as defined in claim 1.
Ainsi, en prévoyant l'embout de la chaussure avec des caractéristiques mécaniques dissymétriques, on rend la chaussure plus facilement libérable d'un côté que de l'autre. En d'autres termes, la chaussure échappe à l'élément de fixation plus facilement dans un sens de sollicitation que dans l'autre. Ce premier sens correspond avantageusement au sens où le genou du skieur est le plus fragile.Thus, by providing the toe of the shoe with asymmetrical mechanical characteristics, the shoe is made more easily released on one side than the other. In other words, the shoe escapes the fastening element more easily in one direction of stress than in the other. This first direction advantageously corresponds to the direction where the skier's knee is the most fragile.
Selon un premier mode de mise en oeuvre de l'invention, on adapte la forme de l'embout avant de la chaussure pour rendre la chaussure plus facilement libérable d'un côté.According to a first embodiment of the invention, the shape of the front toe of the shoe is adapted to make the shoe more easily releasable on one side.
Selon un autre mode de mise en oeuvre de l'invention, on diminue les frottements entre une partie de l'embout et l'élément de fixation.According to another embodiment of the invention, the friction between a part of the end piece and the fixing element is reduced.
L'invention sera mieux comprise en se référant à la description ci-dessous et aux dessins en annexe qui en font partie intégrante.The invention will be better understood by referring to the description below and to the accompanying drawings which form an integral part thereof.
Les figures 1 et 2 illustrent l'état de la technique.Figures 1 and 2 illustrate the state of the art.
La figure 3 représente en vue de dessus et en coupe partielle l'avant d'une chaussure selon un premier mode de mise en oeuvre de l'invention.FIG. 3 represents a top view and in partial section of the front of a shoe according to a first embodiment of the invention.
La figure 4 illustre dans le même mode de présentation un second mode de mise en oeuvre de l'invention.FIG. 4 illustrates in the same mode of presentation a second mode of implementation of the invention.
La figure 5 illustre une variante de réalisation.FIG. 5 illustrates an alternative embodiment.
La figure 6 illustre une autre variante de réalisation.Figure 6 illustrates another alternative embodiment.
Les figures 1 et 2 illustrent l'état de la technique et représentent une chaussure 1 avec une semelle 2 telle qu'elle est définie par la norme ISO 5355.Figures 1 and 2 illustrate the state of the art and represent a shoe 1 with a sole 2 as defined by the ISO 5355 standard.
La semelle 2 présente notamment un embout avant 3 et un embout arrière 4.The sole 2 has in particular a front end piece 3 and a
L'embout avant 3 qui est plus particulièrement concerné par l'invention comprend une partie inférieure de semelle délimitée par une surface de semelle 5 et une partie supérieure de tige délimitée par une surface supérieure 6 située sur la tige de la chaussure. La forme de ces deux surfaces 5 et 6 est définie par la norme. De façon usuelle, l'embout avant de la chaussure est retenu dans l'élément de fixation avant plutôt par sa partie de semelle, ou bien plutôt par sa partie de tige, c'est-à-dire que la mâchoire de l'élément de fixation est en contact ou bien avec la surface de semelle 5, ou bien avec la surface de tige 6. Dans le premier cas, on a l'habitude de dire que l'élément de fixation opère une prise sur tige de la chaussure, et dans le second cas une prise sur semelle.The front toe 3 which is more particularly concerned with the invention comprises a lower sole part delimited by a
La figure 2 représente le contour de l'embout avant, vu de dessus.Figure 2 shows the outline of the front end, seen from above.
Selon la norme actuellement utilisée, les surfaces 5 et 6 sont symétriques par rapport au plan vertical médian dont la trace est schématisée en 8 dans la figure 2. La surface 5, vue de dessus, présente dans sa partie centrale la forme d'un arc de cercle de grand rayon, qui est bordé latéralement de chaque côté par un arc de cercle de rayon plus petit. La surface de tige 6, vue de dessus a la forme d'un arc de cercle de grand rayon. On a schématisé par les traits fins 9a et 9b des tangentes à la surface de semelle 5, et par les traits fins 10a et 10b des tangentes à la surface de tige. Ces tangentes localisent approximativement les zones où la mâchoire retient l'embout de chaussure selon une direction latérale, lorsque la chaussure est en position centrée sur le ski.According to the standard currently used,
De façon connue, la mâchoire de l'élément de fixation retient la chaussure par un contact localisé dans ces zones, ou bien par une prise sur tige, ou bien par une prise sur semelle. Un sollicitation latérale exercée par la chaussure sur la mâchoire au-delà du seuil de libération de l'élément de fixation provoque le mouvement latéral de la mâchoire. Au cours de ce mouvement, généralement, l'embout de la chaussure glisse le long d'un bord latéral de la mâchoire, jusqu'à échapper complètement à celle-ci. La chaussure se trouve ainsi libérée. Il faut souligner que durant ce mouvement de libération, la chaussure est au contact de la mâchoire seulement dans la zone normalisée de l'embout avant, et plus précisément seulement dans une partie droite ou gauche de la tige ou de la semelle.In known manner, the jaw of the fastening element retains the shoe by a contact located in these areas, either by a grip on the upper, or by a grip on the sole. A lateral stress exerted by the shoe on the jaw beyond the release threshold of the fastening element causes lateral movement of the jaw. During this movement, generally, the toe of the shoe slides along a lateral edge of the jaw, until it completely escapes the latter. The shoe is thus released. It should be emphasized that during this release movement, the shoe is in contact with the jaw only in the standardized area of the front toe, and more precisely only in a right or left part of the upper or sole.
La figure 3 représente en vue de dessus l'embout avant d'une chaussure selon un premier mode de mise en oeuvre de l'invention.Figure 3 shows a top view of the front toe of a shoe according to a first embodiment of the invention.
On a représenté dans cette figure en 15 la surface de semelle, et en 16 la surface de tige de l'embout. On a également représenté en 18 la trace du plan médian, et en 19a, 19b, 20a, 20b, les tangentes à la surface de semelle et la surface de tige, qui localisent approximativement les zones de contact entre l'embout et son élément de retenue.This figure shows at 15 the sole surface, and at 16 the upper surface of the toe. Also shown in 18 is the trace of the median plane, and in 19a, 19b, 20a, 20b, the tangents to the sole surface and the upper surface, which approximately locate the contact zones between the toe and its element. detention.
Selon ce mode de mise en oeuvre de l'invention, les surfaces de tige et/ou de semelle sont rendues dissymétriques par rapport au plan médian.According to this embodiment of the invention, the upper and / or sole surfaces are made asymmetrical with respect to the median plane.
La figure 3 représente sur le côté gauche du plan médian 18, des portions de surface 15b et 16b de forme traditionnelle. Sur le côté droit, les traits mixtes 15' et 16' représentent l'image symétrique des portions 15b et 16b par rapport au plan médian 18.Figure 3 shows on the left side of the
Ainsi que cela est visible dans la figure 3, les surfaces 15 et 16 présentent une portion droite 15a et 16a, qui est sensiblement en retrait par rapport à la portion symétrique 15' et 16' correspondante.As can be seen in FIG. 3, the
De préférence, les surfaces 15a et 16a sont en retrait entre les zones de tangence avec les plans 19a et 20a et le plan médian pour ne pas modifier les conditions dans lesquelles la chaussure est retenue en position centrée par un élément de retenue. De plus, la courbure générale des surfaces 15 ou 16 ne présente pas de discontinuité marquée dans cette zone en retrait.Preferably, the surfaces 15a and 16a are set back between the zones of tangency with the planes 19a and 20a and the median plane so as not to modify the conditions under which the shoe is retained in the centered position by a retaining element. In addition, the general curvature of the
Par exemple, comme cela est représenté dans la figure, la portion droite de surface de tige ou de semelle s'éloigne progressivement de la portion symétrique puis s'en rapproche progressivement, entre la zone de contact avec les tangentes 19a et 20a et la trace du plan médian.For example, as shown in the figure, the straight portion of the upper or sole surface progressively moves away from the symmetrical portion and then gradually approaches it, between the zone of contact with the tangents 19a and 20a and the trace of the median plane.
On a obtenu des résultats significatifs avec une chaussure standard dont une portion de surface 15a, 16a a été limée sur une épaisseur variant progressivement de 0 à 1,5 millimètres. Naturellement, ceci n'est pas limitatif pour l'invention, et la dissymétrie pourrait être plus ou moins prononcée.Significant results have been obtained with a standard shoe, a portion of the surface 15a, 16a of which has been filed down to a thickness varying progressively from 0 to 1.5 millimeters. Naturally, this is not limiting for the invention, and the asymmetry could be more or less pronounced.
La chaussure de la figure 3 se comporte de la façon suivante. En position centrée, la chaussure est retenue dans un élément avant de fixation de la même façon qu'une chaussure traditionnelle.The shoe of Figure 3 behaves as follows. In the centered position, the shoe is retained in a fastening element in the same way as a traditional shoe.
Pour la chaussure de la figure 3, si la chaussure sollicite l'élément de fixation par sa portion gauche, au-delà du seuil de déclenchement de l'élément de fixation, la libération de la chaussure se produira de la même façon que dans le cas d'une chaussure traditionnelle.For the shoe of FIG. 3, if the shoe requests the fastening element by its left portion, beyond the triggering threshold of the fastening element, the release of the shoe will occur in the same way as in the case of a traditional shoe.
Par contre, si la chaussure sollicite l'élément de fixation par sa portion droite, elle pourra échapper plus facilement à la mâchoire de la fixation, grâce à sa surface de contact avec l'élément de fixation qui est en retrait par rapport à une chaussure traditionnelle. La libération de la chaussure est donc facilitée d'un côté par rapport à l'autre.On the other hand, if the shoe requests the fastening element by its straight portion, it will be able to escape more easily from the jaw of the fastening, thanks to its surface of contact with the fastening element which is set back with respect to a shoe. traditional. The release of the shoe is therefore facilitated on one side relative to the other.
De préférence, comme cela est représenté dans la figure 3, le retrait est présent à la fois sur la surface de tige et la surface de semelle, de telle façon qu'un libération plus facile soit obtenue aussi bien avec les éléments de fixation standards à prise sur tige que ceux à prise sur semelle. Il va de soi que le retrait pourrait être présent seulement sur la surface de tige, ou bien seulement sur la surface de semelle.Preferably, as shown in Figure 3, shrinkage is present on both the upper surface and the sole surface, so that easier release is achieved with both standard fasteners to grip on rod than those with grip on sole. It goes without saying that the shrinkage could be present only on the upper surface, or only on the sole surface.
En outre, il va de soi que, de préférence, l'autre chaussure présente un ou des retraits du même type, mais sur l'autre côté de la chaussure. De cette façon, les deux genoux du skieur sont protégés de façon améliorée par une libération de la chaussure plus facile du côté où le genou est plus fragile. Il convient de remarquer que ce résultat est atteint sans nécessiter un appariement des skis avec les chaussures, c'est-à-dire que le skieur n'a pas besoin de repérer un ski droit et un ski gauche, il peut chausser chaque ski indifféremment du côté droit ou du côté gauche.In addition, it goes without saying that, preferably, the other shoe has one or more recesses of the same type, but on the other side of the shoe. In this way, the two knees of the skier are better protected by an easier release of the boot on the side where the knee is more fragile. It should be noted that this result is achieved without requiring a pairing of the skis with the boots, that is to say that the skier does not need to locate a right ski and a left ski, he can put on each ski indifferently on the right side or on the left side.
La figure 4 est relative à un autre mode de mise en oeuvre de l'invention. Selon ce mode de mise en oeuvre, les surfaces de semelle 25 et de tige 26 présentent une forme traditionnelle. Toutefois, sur l'un des côtés 25a, 26a, on a cherché à améliorer les conditions de glissement de l'embout, c'est-à-dire diminuer le frottement entre l'embout et la mâchoire.Figure 4 relates to another embodiment of the invention. According to this embodiment, the sole 25 and upper 26 surfaces have a traditional shape. However, on one of the
Ainsi, selon la figure 4, l'embout présente sur le côté droit du plan médian 28 un évidement 21 au niveau de la semelle, et 22 au niveau de l'embout. Les évidements 21 et 22 s'étendent sur la hauteur de la zone normalisée, sur sensiblement la longueur de la portion de surface de tige et de semelle située d'un côté du plan médian et ils sont comblés par une plaquette de matériau à faible frottement 23, 24, par exemple une plaquette de polytétrafluoréthylène. Cette plaquette présente une épaisseur égale à la profondeur de l'évidement, et elle est assemblée au reste de la coque de la chaussure par tout moyen approprié, et par exemple par collage.Thus, according to Figure 4, the tip has on the right side of the median plane 28 a
Si la chaussure porte sur la mâchoire de l'élément de fixation par l'une des zones 25a, 26a à frottement amélioré, elle sera libérée plus facilement que si elle porte l'une des autres zones 25b, 26b.If the shoe bears on the jaw of the fastening element through one of the
Comme dans le cas précédent, on pourrait avoir une seule plaquette anti-friction située sur la surface de tige ou bien sur la surface de semelle.As in the previous case, there could be a single anti-friction pad located on the upper surface or else on the sole surface.
En variante, la figure 5 représente les évidements de la tige et de la semelle occupés par une série de rouleaux ou d'aiguilles verticaux schématisés en 29.As a variant, FIG. 5 represents the recesses of the upper and of the sole occupied by a series of vertical rollers or needles shown diagrammatically at 29.
Selon une autre variante représentée en figure 6, la portion d'embout à faible frottement est la surface externe 35a, 36a d'un élément rapporté 33 réalisé en un matériau présentant un frottement plus faible que le reste de l'embout. De façon usuelle, une coque de chaussure de ski est réalisée en polyuréthane ou en polypropylène. Dans ce cas, l'élément rapporté peut être réalisé dans ce type de matériau mais avec addition de charges de graphite, de polytétrafluoréthylène ou d'huile de silicone.According to another variant shown in FIG. 6, the portion of the tip with low friction is the external surface 35a, 36a of an
D'autres solutions sont aussi possibles, par exemple un élément rapporté bimatière, présentant en surface un matériau à faible frottement incrusté dans un matériau de support ayant de bonnes caractéristiques mécaniques. Une autre possibilité consisterait à mouler la coque de la chaussure ou l'embout d'une seule pièce, et avant l'injection de déposer en fond de moule, sur un côté de l'embout, une plaquette de matériau à faible frottement sur laquelle le matériau de la coque ou de l'embout serait injecté.Other solutions are also possible, for example a two-component insert, having on the surface a low friction material embedded in a support material having good mechanical characteristics. Another possibility would consist in molding the shell of the shoe or the toe in one piece, and before the injection of depositing at the bottom of the mold, on one side of the toe, a plate of low friction material on which the material of the shell or the end piece would be injected.
De plus, pour les modes de réalisation des figures 4 et 6, au lieu de chercher à diminuer le frottement entre la mâchoire et la chaussure d'un côté de la chaussure, on pourrait chercher à augmenter ce frottement sur l'autre côté de la chaussure.In addition, for the embodiments of FIGS. 4 and 6, instead of seeking to reduce the friction between the jaw and the shoe on one side of the shoe, one could seek to increase this friction on the other side of the shoe.
Naturellement, les différents modes de réalisation qui viennent d'être décrits peuvent être combinés.Naturally, the various embodiments which have just been described can be combined.
En outre, l'invention n'est pas limitée aux modes de réalisation décrits, elle englobe tous les équivalents, variantes et autres constructions, tels que définis dans les revendications.In addition, the invention is not limited to the embodiments described, it encompasses all equivalents, variants and other constructions, as defined in the claims.
Claims (8)
caractérisée par le fait que l'embout avant présente des moyens de retenue (15a, 16a, 23, 24, 29, 33) ayant des caractéristiques mécaniques dissymétriques par rapport au plan médian (18) pour permettre une libération de la chaussure à la suite d'un solicitation en torsion au-delà d'un seuil de sollicitation différent selon le sens de rotation dans lequel s'exerce la sollicitation de torsion.Ski boot intended to be held in abutment on a ski releasably by a front binding element and a rear binding element integral with the ski, comprising a front end piece intended to cooperate with the front binding element, extending from on either side of a median vertical plane (8),
characterized in that the front toe has retaining means (15a, 16a, 23, 24, 29, 33) having asymmetrical mechanical characteristics relative to the median plane (18) to allow release of the shoe as a result of a torsional stress beyond a different stress threshold according to the direction of rotation in which the torsional stress is exerted.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9408941 | 1994-07-13 | ||
| FR9408941A FR2722372B1 (en) | 1994-07-13 | 1994-07-13 | SPORTS SHOES, ESPECIALLY ALPINE SKI SHOES |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0692203A1 true EP0692203A1 (en) | 1996-01-17 |
| EP0692203B1 EP0692203B1 (en) | 1998-12-30 |
Family
ID=9465547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP95107469A Expired - Lifetime EP0692203B1 (en) | 1994-07-13 | 1995-05-17 | Sportshoe, in particular skiboot |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US5615498A (en) |
| EP (1) | EP0692203B1 (en) |
| JP (1) | JPH0852005A (en) |
| AT (1) | ATE175078T1 (en) |
| DE (1) | DE69506958T2 (en) |
| FR (1) | FR2722372B1 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2727029B1 (en) * | 1994-11-21 | 1997-01-24 | Salomon Sa | ASSEMBLY OF SHOE RETAINING ELEMENTS ON SLIDING BOARDS |
| FR2770787B1 (en) | 1997-11-07 | 2000-01-14 | Rossignol Sa | IMPROVEMENT FOR A DEVICE FOR RETAINING A SHOE ON A SKI |
| FR2806925B1 (en) | 2000-03-29 | 2002-05-31 | Salomon Sa | RETAINING ELEMENT OF THE FRONT OF A SHOE ON AN ALPINE SKI |
| FR2866791B1 (en) * | 2004-02-27 | 2006-07-14 | Look Cycle Int | PLATINUM FOR RAPID CONNECTION OF A CYCLING SHOE ON AN AUTOMATIC CYCLE PEDAL |
| US20130255102A1 (en) | 2012-04-02 | 2013-10-03 | Rayford Terrell | Supplemental removable stick on cleat for footwear |
| ITUD20130138A1 (en) | 2013-10-25 | 2015-04-26 | Calzaturificio Dal Bello S R L | SPORTS FOOTWEAR FOR WINTER SPORTS PRACTICE |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1807074A1 (en) * | 1968-11-05 | 1970-05-27 | Augustin Dr Ing Dietmar | Asymmetrical ski safety bindings (toe piece) against turning falls |
| US3709509A (en) | 1970-10-06 | 1973-01-09 | K Hildebrand | Releasable ski binding |
| DE2449514A1 (en) * | 1974-10-17 | 1976-04-29 | Ver Baubeschlag Gretsch Co | Ski boot with projections at heel and toe ends - friction-free release with various types of binding |
| DE2802251A1 (en) * | 1978-01-19 | 1979-07-26 | Ver Baubeschlag Gretsch Co | Safety ski binding with sole grip - swivelling sideways when predetermined force is exceeded and equipped with side jaws having sliding insets |
| US4543738A (en) * | 1982-03-30 | 1985-10-01 | Mower Morton M | Ski boot for concentrating a skier's weight on a ski edge |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT130779B (en) * | 1931-11-09 | 1932-12-10 | Ernst Rittmann | Ski boot. |
| DE804900C (en) * | 1949-07-14 | 1951-05-04 | Mathias Kern | Sports boots |
| CH323595A (en) * | 1954-07-19 | 1957-08-15 | Schuhfabrik Henke & Co Aktieng | Ski boot |
| AT250829B (en) * | 1962-10-27 | 1966-11-25 | Gustavo De Faveri Tron | Straps for shoes, in particular sports shoes |
| DE1916754A1 (en) * | 1969-04-01 | 1970-10-15 | Rieker & Co | Ski boot for safety bindings |
| CH549969A (en) * | 1973-02-21 | 1974-06-14 | Raichle Sportschuh Ag | Ski-shoe having inserted front sole plate - made of material with lower frictional index than material in remaining region of sole face |
| IT1210169B (en) * | 1985-06-05 | 1989-09-06 | Gaber Italia Spa | SKI BOOTS WITH ELECTRIC AND / OR ELECTRONIC SELF-FOOD DEVICES. |
| CH679362A5 (en) * | 1989-08-07 | 1992-02-14 | Lange Int Sa | Ski boot with tongue protruding achilles tendon - shell has extensions superposed on sides of tendon and outside tongue when boot is closed |
| JPH0722082Y2 (en) * | 1990-09-07 | 1995-05-24 | ダイワ精工株式会社 | Ski shoes |
-
1994
- 1994-07-13 FR FR9408941A patent/FR2722372B1/en not_active Expired - Fee Related
-
1995
- 1995-05-17 DE DE69506958T patent/DE69506958T2/en not_active Expired - Fee Related
- 1995-05-17 EP EP95107469A patent/EP0692203B1/en not_active Expired - Lifetime
- 1995-05-17 AT AT95107469T patent/ATE175078T1/en not_active IP Right Cessation
- 1995-07-10 JP JP7173387A patent/JPH0852005A/en not_active Withdrawn
- 1995-07-13 US US08/501,861 patent/US5615498A/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1807074A1 (en) * | 1968-11-05 | 1970-05-27 | Augustin Dr Ing Dietmar | Asymmetrical ski safety bindings (toe piece) against turning falls |
| US3709509A (en) | 1970-10-06 | 1973-01-09 | K Hildebrand | Releasable ski binding |
| DE2449514A1 (en) * | 1974-10-17 | 1976-04-29 | Ver Baubeschlag Gretsch Co | Ski boot with projections at heel and toe ends - friction-free release with various types of binding |
| DE2802251A1 (en) * | 1978-01-19 | 1979-07-26 | Ver Baubeschlag Gretsch Co | Safety ski binding with sole grip - swivelling sideways when predetermined force is exceeded and equipped with side jaws having sliding insets |
| US4543738A (en) * | 1982-03-30 | 1985-10-01 | Mower Morton M | Ski boot for concentrating a skier's weight on a ski edge |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0692203B1 (en) | 1998-12-30 |
| ATE175078T1 (en) | 1999-01-15 |
| FR2722372A1 (en) | 1996-01-19 |
| US5615498A (en) | 1997-04-01 |
| DE69506958D1 (en) | 1999-02-11 |
| DE69506958T2 (en) | 1999-08-12 |
| JPH0852005A (en) | 1996-02-27 |
| FR2722372B1 (en) | 1996-10-04 |
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