EP0692203B1 - Sportshoe, in particular skiboot - Google Patents

Sportshoe, in particular skiboot Download PDF

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Publication number
EP0692203B1
EP0692203B1 EP95107469A EP95107469A EP0692203B1 EP 0692203 B1 EP0692203 B1 EP 0692203B1 EP 95107469 A EP95107469 A EP 95107469A EP 95107469 A EP95107469 A EP 95107469A EP 0692203 B1 EP0692203 B1 EP 0692203B1
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EP
European Patent Office
Prior art keywords
boot
jaw
tip
sole
ski
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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EP95107469A
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German (de)
French (fr)
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EP0692203A1 (en
Inventor
Christian Challande
Pierre Desarmaux
Pascal Thomas
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Salomon SAS
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Salomon SAS
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Publication of EP0692203A1 publication Critical patent/EP0692203A1/en
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Publication of EP0692203B1 publication Critical patent/EP0692203B1/en
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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 shoe intended to be releasably supported. on a sliding board, and in particular an alpine ski boot. It also concerns a pair of shoes.
  • An alpine ski boot is generally held in abutment against a ski by a front fastener and a rear fastener.
  • Each fastener 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 lower part of the upper have a symmetrical shape with respect to a plane vertical and longitudinal.
  • 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 binding element releases the shoe is the same that the torsional stress tends to make the shoe come out towards the inside of the foot or towards outside.
  • the knee of a human being is more or less resistant to torsional stress exerted on the leg, in the direction of the latter.
  • the knee is more fragile for an inward rotation of the foot, that is to say towards the other foot.
  • the problem posed by the invention is to propose a shoe which improves the knee protection.
  • Another object of the invention is to provide a shoe which remains compatible with the market fasteners, just like a standard shoe.
  • Another object of the invention is to propose a shoe which is simple to produce.
  • the shoe is made more easily releasable on one side than on the other.
  • the shoe escapes the element of fixing more easily in one direction of loading than in the other. This first sense advantageously corresponds to the direction where the skier's knee is the most fragile.
  • the shape of the end piece is adapted front of the shoe to make the shoe more easily releasable on one side.
  • the friction between part of the end piece and the fixing element is provided.
  • Figures 1 and 2 illustrate the state of the art and show a shoe 1 with a sole 2 as defined by standard ISO 5355.
  • the sole 2 has in particular a front end piece 3 and a rear end piece 4.
  • the front end piece 3 which is more particularly concerned with the invention comprises a lower part of sole delimited by a sole surface 5 and an upper part of upper defined by an upper surface 6 located 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 stem part, i.e. the jaw of the fastener is in contact with or the sole surface 5, or with the upper surface 6.
  • Figure 2 shows the outline of the front end, seen from above.
  • surfaces 5 and 6 are symmetrical with respect to the vertical median 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 circle of smaller radius.
  • the rod surface 6, seen from above has the shape of an arc of large radius circle.
  • the jaw of the fastening element retains the shoe by a contact located in these areas, either by a plug on rod, or by a taken on sole.
  • a lateral stress exerted by the shoe on the jaw beyond the release threshold of the fastener causes movement lateral of the jaw.
  • the tip of the shoe slides along a side edge of the jaw, until it escapes completely to this one. The shoe is thus released.
  • the shoe is in contact with the jaw only in the standardized area of the front end, 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 in 15 the sole surface, and in 16 the rod end surface. Also shown in 18 is the trace of the plan median, and in 19a, 19b, 20a, 20b, the tangents to the sole surface and the stem surface, which approximately locate the contact areas between the nozzle and its retaining element.
  • the rod and / or sole are made asymmetrical with respect to the median plane.
  • Figure 3 shows on the left side of the median plane 18, portions of surface 15b and 16b of traditional form.
  • the dashed lines 15 'and 16 ' represent the symmetrical image of the portions 15b and 16b with respect to the plane median 18.
  • surfaces 15 and 16 have a straight portion 15a and 16a, which is substantially set back from the portion symmetrical 15 'and 16' corresponding.
  • the surfaces 15a and 16a are set back between the areas of tangency with planes 19a and 20a and the median plane so as not to modify the conditions under which the shoe is retained in a centered position by a retainer.
  • the general curvature of the surfaces 15 or 16 does not has no marked discontinuity in this recessed area.
  • the right portion of upper or sole surface gradually moves away from the symmetrical portion 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 position centered, the shoe is retained in an element before fixing the same way than 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 binding, thanks to its contact surface with the fastener which is set back from a traditional shoe. The release of the shoe is therefore facilitated on one side compared to each other.
  • the shrinkage is present on both the upper surface and the sole surface, so that a easier release is achieved as well with the fasteners standard to grip on rod than those to grip on sole. It goes without saying that the withdrawal could be present only on the stem surface, or only on the sole surface.
  • the other shoe has one or more withdrawals of the same type, but on the other side of the shoe.
  • the both knees of the skier are better protected by a release of the shoe easier 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 shoes, that is to say that the skier does not need to locate a straight ski and a left ski, it can fit each ski either on the right side or on the side left.
  • Figure 4 relates to another embodiment of the invention.
  • the sole 25 and upper 26 surfaces have a traditional shape.
  • the end piece present 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 standard zone, over substantially the length of the upper and sole surface portion located in a side of the midplane and they are filled with a wafer of low material friction 23, 24, for example a polytetrafluoroethylene plate.
  • This plate has a thickness equal to the depth of the recess, and it is assembled to the rest of the shell of the shoe by any appropriate means, and by example by collage.
  • FIG. 5 shows the recesses of the upper and the sole occupied by a series of vertical rollers or needles shown diagrammatically at 29.
  • the portion of the nozzle at low friction is the external surface 35a, 36a of an insert 33 produced in a material with lower friction than the rest of the tip.
  • a ski boot shell is made of polyurethane or polypropylene.
  • the added element can be made in this type of material but with the addition of graphite, polytetrafluoroethylene fillers or silicone oil.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

The ski boot has a front ferrule which fits a front fixing holding it supported on the ski. This ferrule has a holder (15a,16a) which is dissymmetrical relative to the median plane (18). This allows freeing of the boot following a torsion beyond a threshold which is different according to the direction of rotation which the torsion exerts. The front retaining zone (15) has a dissymmetrical shape relative to the median plane so as to allow disengagement of the fixing more easily from one side than another. The surface of the boot sole and ankle (16) is recessed on one side of the median plane. This recess in the sole and ankle surfaces is located between the contact zone with the fixing jaws and the median plane. The retaining ferrule has a different coefficient of friction on one side of the median plane than the other. <IMAGE>

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 shoe intended to be releasably supported. on a sliding board, and in particular an alpine ski boot. It also concerns 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 held in abutment against a ski by a front fastener and a rear fastener. Each fastener 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 designed to work with fasteners of a particular type. For example, US Patent 3,709,509 shows a shoe whose end caps have a projection which cooperates with a corresponding recess in the jaw of the fastener. Such shoes could only be used with elements specific fixing.

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 end caps of the shoe has been adopted. In the ISO standards system, this standard is identified under the ISO number 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 lower part of the upper have a symmetrical shape with respect to a plane vertical and longitudinal.

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.

On connaít également d'après la demande de brevet publiée sous le numéro DE 24 49 514 une chaussure dont l'embout avant est équipé de moyens de glissement tels que des rouleaux ou des surfaces à faible frottement, pour rendre les conditions de libération de la chaussure indépendantes de l'élément de fixation utilisé. Ces moyens équipent de façon identique les deux bords latéraux de l'embout.We also know from the patent application published under the number DE 24 49 514 a shoe whose front toe is equipped with sliding means such as rollers or low friction surfaces, to make the conditions for releasing the shoe independent of the fastening element used. These means equip identical the two lateral edges of the nozzle.

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 a lateral release of the front end piece from the front fixing element, the stress threshold beyond which the binding element releases the shoe is the same that the torsional stress tends to make the shoe come out towards the inside of the foot or towards 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 torsional stress exerted on the leg, in the direction of the latter. In particular, the knee is more fragile for an inward rotation of the foot, that is to say 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 knee protection.

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 provide a shoe which remains compatible with the market fasteners, just like a standard 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 apparaítront au cours de la description qui va suivre sont atteints par l'invention telle qu'elle est définie dans les revendications indépendantes.These goals and others that will appear during the following description are achieved by the invention as defined in the independent claims.

Ainsi, en prévoyant l'embout de la chaussure avec une forme ou un coefficient de frottement des deux côtés du plan vertical médian, 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 a shape or a coefficient of friction on both sides of the median vertical plane, the shoe is made more easily releasable on one side than on the other. In other words, the shoe escapes the element of fixing more easily in one direction of loading than in the other. This first sense 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 end piece is adapted front of the shoe 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 part of the end piece and the fixing element.

L'invention sera mieux comprise en se référant à la description ci-dessous et aux dessins en annexe qui en font partie intégrante.

  • Les figures 1 et 2 illustrent l'état de la technique.
  • 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.
  • La figure 4 illustre dans le même mode de présentation un second mode de mise en oeuvre de l'invention.
  • La figure 5 illustre une variante de réalisation.
  • La figure 6 illustre une autre variante de réalisation.
    • The invention will be better understood by referring to the description below and to the accompanying drawings which form an integral part thereof.
  • Figures 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.

    • 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 show a shoe 1 with a sole 2 as defined by standard ISO 5355.

    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 rear end piece 4.

    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 end piece 3 which is more particularly concerned with the invention comprises a lower part of sole delimited by a sole surface 5 and an upper part of upper defined by an upper surface 6 located on the upper of the shoe. The shape of these two surfaces 5 and 6 is defined by the standard. Usually, the front toe of the shoe is retained in the front fastening element rather by its sole part, or rather by its stem part, i.e. the jaw of the fastener is in contact with or the sole surface 5, or with the upper surface 6. In the first case, we are used to to say that the fastener operates on the upper of the shoe, and in the second case a grip on the sole.

    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, surfaces 5 and 6 are symmetrical with respect to the vertical median 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 circle of smaller radius. The rod surface 6, seen from above has the shape of an arc of large radius circle. We have schematized by the fine lines 9a and 9b tangents at the sole surface 5, and by the fine lines 10a and 10b of the tangents to the surface rod. These tangents approximately locate the areas where the jaw retains the shoe toe in a lateral direction, when the shoe is in position centered on the ski.

    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 plug on rod, or by a taken on sole. A lateral stress exerted by the shoe on the jaw beyond the release threshold of the fastener causes movement lateral of the jaw. During this movement, generally, the tip of the shoe slides along a side edge of the jaw, until it escapes completely to this one. The shoe is thus released. It should be noted that during this release movement, the shoe is in contact with the jaw only in the standardized area of the front end, 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 in 15 the sole surface, and in 16 the rod end surface. Also shown in 18 is the trace of the plan median, and in 19a, 19b, 20a, 20b, the tangents to the sole surface and the stem surface, which approximately locate the contact areas between the nozzle and its retaining element.

    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 rod and / or sole 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 median plane 18, portions of surface 15b and 16b of traditional form. On the right side, the dashed lines 15 'and 16 'represent the symmetrical image of the portions 15b and 16b with respect to the plane median 18.

    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 Figure 3, surfaces 15 and 16 have a straight portion 15a and 16a, which is substantially set back from the portion symmetrical 15 'and 16' corresponding.

    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 areas of tangency with planes 19a and 20a and the median plane so as not to modify the conditions under which the shoe is retained in a centered position by a retainer. In addition, the general curvature of the surfaces 15 or 16 does not has no marked discontinuity in this recessed area.

    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 right portion of upper or sole surface gradually moves away from the symmetrical portion 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 including one surface portion 15a, 16a has been filed over a gradually varying thickness 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 position centered, the shoe is retained in an element before fixing the same way than 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 figure 3, if the shoe requests the fastening element by its left portion, beyond the triggering threshold of the fixing element, 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 binding, thanks to its contact surface with the fastener which is set back from a traditional shoe. The release of the shoe is therefore facilitated on one side compared to each 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, the shrinkage is present on both the upper surface and the sole surface, so that a easier release is achieved as well with the fasteners standard to grip on rod than those to grip on sole. It goes without saying that the withdrawal could be present only on the stem 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 withdrawals of the same type, but on the other side of the shoe. In this way, the both knees of the skier are better protected by a release of the shoe easier 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 shoes, that is to say that the skier does not need to locate a straight ski and a left ski, it can fit each ski either on the right side or on the side left.

    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 sides 25a, 26a, we have sought to improve the sliding conditions of the tip, that is to say decrease the friction between the tip and the jaw.

    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 FIG. 4, the end piece present 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 standard zone, over substantially the length of the upper and sole surface portion located in a side of the midplane and they are filled with a wafer of low material friction 23, 24, for example a polytetrafluoroethylene plate. This plate has a thickness equal to the depth of the recess, and it is assembled to the rest of the shell of the shoe by any appropriate means, and by example by collage.

    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 by one of the zones 25a, 26a with improved friction, it will be released more easily than if it carries one of the other zones 25b, 26b.

    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, we could have a single anti-friction pad located on the upper surface or 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 shows the recesses of the upper and 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 nozzle at low friction is the external surface 35a, 36a of an insert 33 produced in a material with lower friction than the rest of the tip. In a way usual, a ski boot shell is made of polyurethane or polypropylene. In this case, the added element can be made in this type of material but with the addition of graphite, polytetrafluoroethylene fillers or silicone oil.

    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 a low friction material embedded on a surface support material having good mechanical properties. Another possibility would be to mold the shell of the shoe or the toe of a single piece, and before injection place on the bottom of the mold, on one side of the nozzle, a plate of low friction material on which the shell material or the tip 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 Figures 4 and 6, instead of looking to reduce the friction between the jaw and the shoe on one side of the shoe, we could try 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.Furthermore, the invention is not limited to the embodiments described, it includes all equivalents, variants and other constructions, as defined in the claims.

    Claims (8)

    1. , Alpine ski boot adapted to be maintained in support on a ski in a releasable manner, by a front binding element having a retention jaw and a rear binding element affixed to a ski, comprising a front tip adapted to cooperate with the jaw of the front binding element, and extending on both sides of a common median vertical plane (8), the tip having a sole surface (15, 25, 35), a vamp surface (16, 26, 36) with contact zones provided to cooperate with the jaw of the front binding element, with surface portions (15a-15b, 25a-25b, 35a-35b, 16a-16b, 26a-26b, 36a-36b) located on both sides of the median plane, provided as contact zones with the jaw,
         characterized in that for at least one of the vamp or sole surfaces (15, 25, 35, 16, 26, 36), the form and/or coefficient of friction of the portions (15a-15b, 25a-25b, 35a-35b, 16a-16b, 26a-26b, 36a-36b) is made different on one side with respect to the other side of the median longitudinal plane (8), so as to make it possible to release the boot more easily on one side than the other, to enable the boot to escape more easily from the jaw on side than the other.
    2. Boot according to claim 1, characterized in that its front retention zone (15, 16) has an asymmetrical shape with respect to the median plane, to disengage itself from the binding element more easily on one side than the other.
    3. Boot according to claim 2, where the front tip has a sole surface and a vamp surface, characterized in that the sole surface and/or vamp surface is retracted on one side of the median plane, with respect to the symmetrical image of the other surface portion with respect to this median plane.
    4. Ski boot according to claim 3, where the retention zone has a contact zone adapted to be in contact with the jaw of the front binding element when the boot is retained in the central position with respect to the ski, characterized in that the retraction of the sole surface and/or vamp surface is located between the contact zone and the median plane.
    5. Boot according to claim 1, characterized in that the retention tip has a coefficient of friction which is different on both sides of the vertical median plane.
    6. Boot according to claim 5, where the tip has a sole surface and a vamp surface, characterized in that on one side of the media plane, the sole surface and/or the vamp surface is formed by the external surface of an ant-friction material small plate (23, 24) attached to a recess (21, 22) of the tip.
    7. Boot according to claim 5, characterized in that the tip has an attached element (33) whose coefficient of surface friction is less than that of the rest of the tip.
    8. Pair of alpine ski boots adapted to be maintained in support against a ski in a releasable manner, by a front binding element having a retention jaw and a rear binding element affixed to the ski, where each alpine ski boot comprises a front tip adapted to cooperate with the jaw of the front binding element, and extending on both sides of a common media vertical plane (8), the tip having a sole surface (15, 25, 35), a vamp surface (16, 26, 36) with contact zones provided to cooperate with the jaw of the front binding element, with surface portions (15a-15b, 25a-25b, 35a-35b, 16a-16b, 26a-26b, 36a-36b) located on both sides of the median plane, provided as zones of contact with the jaw,
         characterized in that for each boot, at least one of the vamp or sole surfaces (15, 25, 35, 16, 26, 36), the form and/or coefficient of friction of the portions (15a-15b, 25a-25b, 35a-35b, 16a-16b, 26a-26b, 36a-36b) is made different on one side with respect to the other side of the median longitudinal plane (8), so as to make it possible to release the boot more easily on one side than the other, to enable the boot to escape more easily from the jaw on side than the other, and in that for the two boots, the sides made different are distinct sides of the boot.
    EP95107469A 1994-07-13 1995-05-17 Sportshoe, in particular skiboot Expired - Lifetime EP0692203B1 (en)

    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 EP0692203A1 (en) 1996-01-17
    EP0692203B1 true 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)

    * Cited by examiner, † Cited by third party
    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

    Family Cites Families (14)

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    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
    DE1807074A1 (en) * 1968-11-05 1970-05-27 Augustin Dr Ing Dietmar Asymmetrical ski safety bindings (toe piece) against turning falls
    DE1916754A1 (en) * 1969-04-01 1970-10-15 Rieker & Co Ski boot for safety bindings
    US3709509A (en) 1970-10-06 1973-01-09 K Hildebrand Releasable ski binding
    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
    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
    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

    Also Published As

    Publication number Publication date
    DE69506958T2 (en) 1999-08-12
    US5615498A (en) 1997-04-01
    JPH0852005A (en) 1996-02-27
    DE69506958D1 (en) 1999-02-11
    FR2722372B1 (en) 1996-10-04
    ATE175078T1 (en) 1999-01-15
    FR2722372A1 (en) 1996-01-19
    EP0692203A1 (en) 1996-01-17

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