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EP0887027A1 - Multilayer sole coupled to a reinforcement of the shoe upper - Google Patents

Multilayer sole coupled to a reinforcement of the shoe upper Download PDF

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Publication number
EP0887027A1
EP0887027A1 EP98110786A EP98110786A EP0887027A1 EP 0887027 A1 EP0887027 A1 EP 0887027A1 EP 98110786 A EP98110786 A EP 98110786A EP 98110786 A EP98110786 A EP 98110786A EP 0887027 A1 EP0887027 A1 EP 0887027A1
Authority
EP
European Patent Office
Prior art keywords
layer
foot
sole assembly
region
reinforcing element
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.)
Granted
Application number
EP98110786A
Other languages
German (de)
French (fr)
Other versions
EP0887027B1 (en
Inventor
Frédéric Cretinon
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Salomon SAS
Original Assignee
Salomon SAS
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Filing date
Publication date
Application filed by Salomon SAS filed Critical Salomon SAS
Publication of EP0887027A1 publication Critical patent/EP0887027A1/en
Application granted granted Critical
Publication of EP0887027B1 publication Critical patent/EP0887027B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00Soles; Sole-and-heel integral units
    • A43B13/02Soles; Sole-and-heel integral units characterised by the material
    • A43B13/026Composites, e.g. carbon fibre or aramid fibre; the sole, one or more sole layers or sole part being made of a composite
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00Soles; Sole-and-heel integral units
    • A43B13/02Soles; Sole-and-heel integral units characterised by the material
    • A43B13/12Soles with several layers of different materials
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/08Heel stiffeners; Toe stiffeners
    • A43B23/16Heel stiffeners; Toe stiffeners made of impregnated fabrics, plastics or the like
    • A43B23/17Heel stiffeners; Toe stiffeners made of impregnated fabrics, plastics or the like made of plastics
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00Footwear for sporting purposes
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00Footwear for sporting purposes
    • A43B5/002Mountain boots or shoes
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00Footwear with health or hygienic arrangements
    • A43B7/14Footwear with health or hygienic arrangements with foot-supporting parts
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00Footwear with health or hygienic arrangements
    • A43B7/14Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/18Joint supports, e.g. instep supports

Definitions

  • the present invention relates to shoes, the sole assembly of which is carried out according to a laminated structure with several layers respectively fulfilling distinct functions and relates in particular to the coupling of a reinforcement element of the rod with one of the layers of the sole.
  • the semi-rigid upper layer which constitutes the nerve of the sole, can be requested to vary its position relative to the ground depending on the forces applied to the rod using the lateral supports which form the reinforcing element thereof.
  • This reinforcing element supports consequently the stresses undergone by the rod, in particular during use, and transmits them directly to the sole of the shoe by the semi-rigid upper layer from which it comes, and vice versa.
  • the upper and sole are made interdependent which improves the lateral hold of the user's foot in the shoe, and therefore the stability of the shod foot.
  • the effectiveness of this coupling is reveals randomness, even at least insufficient, to obtain good adhesion and adhesion effective because the rigidity obtained at the wear layer which comes into contact with the ground, i.e. level of the sole-soil interface, is not only a function of the mechanical properties of the layer semi-rigid upper with its reinforcement, but also a function of the mechanical properties of the intermediate rubber layer which is interposed between it and the wear layer.
  • shock absorbing by nature which also adds the thickness of the sole material on the side furthest from the plantar surface of the foot the user, there is a significant dispersion of shocks and stresses at his level, as well as elastic deformations which have a harmful influence on the lateral hold of the foot expected using of the reinforcing element, and therefore on the stability during the impact of the sole assembly with the ground.
  • the precision support of the sole assembly with the ground is also altered.
  • Another disadvantage is that the semi-rigid upper layer is located immediately vis-à-vis the plantar surface of the user's foot.
  • the shoe described and taught differs from the one which has just been exposed previously essentially by the fact that the sole assembly has no shock absorbing upper layer, or comfort layer, between the semi-rigid upper layer which is provided with the reinforcing element and the wear layer which comes into contact with the ground.
  • the shoe comprises, on the one hand, a sole made according to a laminated structure having several layers fulfilling distinct functions respectively, i.e. at least one wear layer and one nerve, and on the other hand, a reinforcing element of its stem which is cut to that of the layers of said sole assembly which constitutes its nerve layer, the latter being directly disposed on the wear layer which comes in contact with the ground.
  • the resulting overall structure thus gives more efficiency to the coupling of the reinforcing element with the upper layer which are preferably made of material injected plastic, therefore provided with a certain rigidity.
  • such a sole assembly that is to say without an absorbing intermediate layer or layer comfort, is particularly unsuitable for ensuring a transfer function capable of attenuating shocks to the user's foot correctly on each contact with the ground, i.e. to amortize.
  • this transfer function with damping is essential in the sole assembly for the smooth running of the foot, which takes place overall in three phases, damping-propulsion-propulsion, and to prevent certain traumas which occur almost generally as a result of the intensity of the shocks and their frequency in sensitive areas of the plantar surface of the foot, like for example the heel area where the overloads are significant.
  • the cushioning function of the sole assembly is particularly important during this first phase of unwinding of the foot, to absorb at least part of the energy of the shock which occurs at this time there by dissipating it in the form of elastic deformation, and thus avoid overloads generating injuries and / or injuries.
  • the shoe according to the invention comprises, on the one hand, a sole assembly produced according to a laminated structure having several layers, ie at least one wear layer and a nerve layer respectively fulfilling distinct functions, and on the other hand, an element of reinforcement of the upper which is cut to that of the layers of said sole assembly which constitutes its nerve layer, this the latter being directly disposed on the wear layer which comes into contact with the ground.
  • the reinforcing element is coupled to the nerve layer of the sole in a region located between the heel and the anterior end of said sole assembly, and in that it extends from this region on at least one side of the stem away from the sole assembly into the region located in vis-à-vis the heel of the latter, and by the fact that a layer of cushioning and elastic comfort is interposed between the upper and said nerve layer of the sole.
  • the reinforcing element extends freely relative to the sides of the stem.
  • the shoe 1 shown by way of example in FIGS. 1 and 2 generally comprises a upper 10 assembled to a sole assembly 2 produced according to a laminated structure, and a reinforcing element 20 of the rod 10 directly coupled to the sole assembly 2.
  • the rod 10 has a opening for the passage of the foot and a tightening-closing system 11 such as a lacing allowing the adaptation of the footwear volume of the shoe 1 to the foot; its assembly with the sole assembly 2 is made, after embedding in the reinforcing element 20, using assembly techniques classics such as those using gluing, welding, seams, crimping, ...
  • the reinforcing element 20 being preferably left free relative to its wall, particularly in the region 21 which corresponds to that, posterior, of the foot of the user, and which is located opposite the heel 22 of the sole assembly 2, but can also be fully integrated into the upper, for example by sewing.
  • the reinforcing element 20 is cut at the nerve layer 4 of the sole assembly 2 in the region 24 situated between the heel 22 and the anterior end 23 of the latter, substantially in correspondence of the arch of the foot of the user because this region is practically not stressed in flexion during the unwinding of the foot; it extends on each side 12, 12 ′, of the rod 10 from from this region 24 away from the sole assembly 2 into the region 21 of the heel 22 thereof, which in turn gives the general shape of a strip having an arcuate branch 20 'directed substantially parallel to the sole assembly 2 in the region 21 of the heel 22.
  • the embodiment according to which the reinforcing element 20 extends freely on the sides 12, 12 ′ of the rod 10 is important when the rod 10 is, for example, mounted glued or sewn to a first mounting sole 28 via flaps 13, 13 ', coming from its sides 12, 12', such as shown in Figure 5, before being assembled to the sole assembly 2.
  • the sides 12, 12 'of the rod 10 are fixed to the first mounting 28 with such firmness that they are obliged to follow almost all the relative displacements of this one compared to the comfort layer 5 on which it is fixed.
  • the relative displacement of the sides 12, 12 ′, with respect to the reinforcing element 20 can advantageously be limited in amplitude, in particular in the posterior region 21 at the location of the heel 22 of the sole assembly 2.
  • the reinforcing element 20 is provided for this purpose with a substantially vertical tab 30 which extends in the direction of the sole assembly 2 opposite the heel 22 of the latter.
  • a free space of value H predetermined by construction, as visible in FIG. 3, remains at rest between the free end 30 'of the tab 30 and the sole assembly 2.
  • the heel 22 flexes freely in the direction of the reinforcing element 20 by absorbing the intensity of the shock resulting from the impact , and this, during the reduction of the free space H. If the intensity of the impact is such that it could not be fully absorbed during this bending of the heel 22, the latter then comes into abutment against the free end 30 ′ of the lug 30 which, due to its rigidity and of its attachment to the reinforcing element 20, blocks it in its bending movement.
  • a sole assembly 2 is therefore obtained, the behavior of which varies, starting from a predetermined threshold of intensity of the shocks which result from the impact of the sole assembly 2 with the ground 26, as much in its damping capacity as in that of its bending.
  • the freedom of reciprocal movement conferred on the sides 12, 12 ′, of the rod 10 and the reinforcement element 20, as illustrated in FIG. 5, preserves the lateral holding and the stability of the foot 50 also when the damping is obtained simply by deformation elastic of the comfort layer 5. Indeed, in this operating case, the foot 50 compresses, by support reaction, the comfort layer 5 as indicated by arrow 29 and relatively lowers by relative to the arcuate branch 20 ′ of the reinforcing element 20 on each side 12, 12 ′, of the rod 10. the reinforcing element 20 therefore fits even more the foot 50 of the user.
  • each arcuate branch 20 ′ of the reinforcing element 20 bypasses the region 34 of the malleoli of the user's foot 50 from below. It is obvious that other achievements are possible, and that, in particular, the arcuate branch 20 ′ of the reinforcing element 20 could bypass region 34 of the malleoli above.
  • the generally strip-like reinforcing element 20 can have, on at least one side 12 or 12 'of the upper 10 of the shoe 1, at least two branches arched 20 'which bypass region 34 of the malleoli, one branch 20' passing below and the other above.
  • the shoe 31 is similar to that of FIGS. 1 to 5 with the difference that attachment means 32, 32 ′, for example lacing hooks, are attached to the element reinforcement 20 to cooperate with the holding and closing system 11.
  • attachment means 32, 32 ′ for example lacing hooks
  • these attachment means are located near the region 35 corresponding to the elbow of the user.
  • the reinforcing element 20 which is cut at the nerve layer 4 of the sole assembly 2 of shoe 1 or 31, shown in broken lines, is provided with another reinforcing element 40, in general form of stirrup, which is pivotally mounted.
  • This other reinforcing element 40 extends over the part upper 41 of upper 10 of shoe 1, 31, surrounding the posterior region 21 of the foot the user.
  • the reinforcing element 20 cut at the nerve layer 4 of the sole assembly 2 is in the form of a strip as described above, that is to say that it has at least one arcuate branch 20 ′ directed substantially parallel to the sole assembly 2 in the region 21 of the heel 22 of the latter, but which also has at least one branch of reinforcement 44 directed towards the front end 23 of the sole assembly 2 (not shown), which branch 44 at least partially surrounds the anterior region of the wearer's foot.
  • the strengthening branch 44 of element 20 thus strengthens the upper of the shoe forward while protecting the foot from side and front impacts like a "rock guard".
  • FIG. 9 an alternative embodiment is illustrated in which the nerve layer 4 of the sole assembly the shoe comprises in selected places cutouts 46, 47, ensuring communication direct between the wear layer 3 and the comfort layer 5 of the sole assembly 2 visible in FIG. 1.
  • These cutouts 46, 47 are intended to reflect the support reactions which result from the contact of the sole 2 with the ground, to make them more noticeable by certain support areas of the foot the user.
  • the reinforcing element 20 cut to the layer nerve 4 of the sole does not extend from one side to the other of the rod as shown in the examples which precede, but only on one side of the upper of the shoe.
  • the reinforcement of the upper of the shoe remains however totally interdependent of the sole assembly as targeted by the invention, and leads to the same results with, obviously, a predominance accentuated on the side of the shoe where the reinforcing element 20 extends.
  • the latter extends to the posterior region 21 located opposite the heel 22 of the sole assembly (not shown) so as to properly fit the foot of the user.
  • the nerve layer to which it is coupled may include a cutout 46 allowing communication direct between the wear layer 3 and the comfort layer 5.
  • the nerve layer 4 of the sole assembly is advantageously obtained in one piece with the reinforcing element 20, whatever the number of branches 20 ′, 44, the constituent.
  • the nerve layer 4 and the reinforcing element 20 can also be carried out independently of each other and then be coupled together in region 24 located between the heel 22 and the front end 23 of the sole assembly 2 by known assembly methods such as riveting, gluing, welding, ... etc.
  • the reinforcing element 20 can be secured to the sides 12, 12 ′, of the rod 10, by example by sewing, gluing, welding, etc., without thereby departing from the scope of the invention; indeed, in such a construction case, the reinforcing element 20 is then used in the manner of a beam bending which contributes to damping by slowing down the lowering of the rod 10 towards the sole assembly 2.
  • the invention relates to shoes in general and can therefore be applied to both classic walking shoes than on sports shoes intended for hiking, mountaineering, running, skiing, etc., as well as on shoes intended to be associated with rolling evolutionary devices such as for example roller skates, inline skates, and / or sliding evolutionary devices such as ice skates or snow skates.
  • rolling evolutionary devices such as for example roller skates, inline skates, and / or sliding evolutionary devices such as ice skates or snow skates.

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  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Epidemiology (AREA)
  • Public Health (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

The boot (1) comprises a sole (2) made in three layers, namely a wear layer (3), a tendon layer (4) and a comfort layer (5). It also has a reinforcing part (20) which is cut out of the tendon layer. The reinforcing part has the shape of an arched band (20') contouring the region (34) corresponding to the malleolus of the user's foot. The reinforcing part is coupled to the tendon layer in a region (24) located between the heel (22) and the front end (23) of the sole. It extends freely on the edges (12,12') of the upper (10) into the rear region. The comfort layer is interposed between the user's foot and the tendon layer. The sole provides excellent lateral hold of the foot without interfering with the shock absorption of the comfort layer and leaves the heel free to flex.

Description

La présente invention est relative aux chaussures dont le semelage est réalisé suivant une structure stratifiée présentant plusieurs couches remplissant respectivement des fonctions distinctes et se rapporte en particulier au couplage d'un élément de renfort de la tige avec l'une des couches du semelage.The present invention relates to shoes, the sole assembly of which is carried out according to a laminated structure with several layers respectively fulfilling distinct functions and relates in particular to the coupling of a reinforcement element of the rod with one of the layers of the sole.

Des chaussures de ce type sont décrites dans le brevet US 5 317 820 et la demande de brevet EP 748 596. Plus précisément, dans l'exemple du brevet US 5 317 820, l'élément de renfort de la tige de la chaussure est coupé à un semelage qui comporte, du bas vers le haut :

  • une couche d'usure en caoutchouc qui vient au contact du sol,
  • une couche intermédiaire, en caoutchouc, présentant un rebord latéral qui s'étend vers l'arrière pour le maintien du talon de l'utilisateur,
  • et une autre couche supérieure semi-rigide, en matériau plastique, qui s'étend en correspondance de la surface plantaire du pied de l'utilisateur.
Shoes of this type are described in US patent 5,317,820 and patent application EP 748,596. More specifically, in the example of US patent 5,317,820, the reinforcing element of the upper of the shoe is cut to a sole assembly which comprises, from bottom to top:
  • a rubber wear layer which comes into contact with the ground,
  • an intermediate layer, made of rubber, having a lateral rim which extends backwards to hold the user's heel,
  • and another semi-rigid upper layer, of plastic material, which extends in correspondence with the plantar surface of the user's foot.

Selon la construction décrite et enseignée, c'est de cette dernière couche supérieure en matériau plastique qu'est issu l'élément de renfort constitué de deux supports latéraux remontants sur les flancs de la tige de la chaussure.According to the construction described and taught, it is this last upper layer of material plastic which comes from the reinforcing element consisting of two lateral supports rising on the sides of the upper of the shoe.

Grâce à cette structure, la couche supérieure semi-rigide, qui constitue le nerf de la semelle, peut être sollicitée à varier de position par rapport au sol en fonction des efforts appliqués sur la tige à l'aide des supports latéraux qui forment l'élément de renfort de celle-ci. Cet élément de renfort soutient par conséquent les efforts subis par la tige, en cours d'usage notamment, et les transmet directement au semelage de la chaussure par la couche supérieure semi-rigide dont il est issu, et vice versa.Thanks to this structure, the semi-rigid upper layer, which constitutes the nerve of the sole, can be requested to vary its position relative to the ground depending on the forces applied to the rod using the lateral supports which form the reinforcing element thereof. This reinforcing element supports consequently the stresses undergone by the rod, in particular during use, and transmits them directly to the sole of the shoe by the semi-rigid upper layer from which it comes, and vice versa.

En fait, en réalisant le couplage de l'élément de renfort avec la couche supérieure semi-rigide, la tige et le semelage sont rendus interdépendants ce qui améliore la tenue latérale du pied de l'utilisateur dans la chaussure, et donc la stabilité du pied chaussé. Cependant, l'efficacité de ce couplage se révèle aléatoire, voire au moins insuffisante, pour obtenir une bonne adhérence et un accrochage efficace car la rigidité obtenue au niveau de la couche d'usure qui vient au contact du sol, soit au niveau de l'interface semelage-sol, est non seulement fonction des propriétés mécaniques de la couche supérieure semi-rigide avec son renfort, mais également fonction des propriétés mécaniques de la couche intermédiaire en caoutchouc qui s'interpose entre elle et la couche d'usure. S'agissant d'une couche intermédiaire en caoutchouc, donc amortissante par nature, qui ajoute par ailleurs de l'épaisseur de matière au semelage du côté le plus éloigné de la surface plantaire du pied de l'utilisateur, il se produit une dispersion importante des chocs et contraintes à son niveau, ainsi que des déformations élastiques qui ont une influence néfaste sur la tenue latérale du pied escomptée à l'aide de l'élément de renfort, et donc sur la stabilité lors de l'impact du semelage avec le sol. La précision des appuis du semelage avec le sol s'en trouve aussi altérée.In fact, by coupling the reinforcing element with the semi-rigid upper layer, the upper and sole are made interdependent which improves the lateral hold of the user's foot in the shoe, and therefore the stability of the shod foot. However, the effectiveness of this coupling is reveals randomness, even at least insufficient, to obtain good adhesion and adhesion effective because the rigidity obtained at the wear layer which comes into contact with the ground, i.e. level of the sole-soil interface, is not only a function of the mechanical properties of the layer semi-rigid upper with its reinforcement, but also a function of the mechanical properties of the intermediate rubber layer which is interposed between it and the wear layer. Being a rubber intermediate layer, therefore shock absorbing by nature, which also adds the thickness of the sole material on the side furthest from the plantar surface of the foot the user, there is a significant dispersion of shocks and stresses at his level, as well as elastic deformations which have a harmful influence on the lateral hold of the foot expected using of the reinforcing element, and therefore on the stability during the impact of the sole assembly with the ground. The precision support of the sole assembly with the ground is also altered.

En outre, un autre inconvénient réside dans le fait que la couche supérieure semi-rigide est située immédiatement en vis-à-vis de la surface plantaire du pied de l'utilisateur.Another disadvantage is that the semi-rigid upper layer is located immediately vis-à-vis the plantar surface of the user's foot.

En effet, dans une telle disposition où les appuis du pied s'effectuent directement sur une surface relativement dure, les compressions répétées que ce dernier subit à l'endroit de ses appuis pendant l'usage de la chaussure occasionnent souvent des sensations douloureuses, voire des micro traumatismes, se traduisant par exemple par des échauffements, des ampoules, des crampes,...etc.Indeed, in such an arrangement where the supports of the foot are carried out directly on a surface relatively hard, the repeated compressions that the latter undergoes at the place of its supports during the use of the shoe often cause painful sensations, even micro trauma, resulting for example in overheating, blisters, cramps, ... etc.

Dans l'exemple de la demande de brevet EP 748 596, la chaussure décrite et enseignée diffère de celle qui vient d'être exposée précédemment essentiellement par le fait que le semelage n'a pas de couche supérieure amortissante, ou couche confort, entre la couche supérieure semi-rigide qui est munie de l'élément de renfort et la couche d'usure qui vient au contact du sol. En fait, la chaussure comporte, d'une part, un semelage réalisé selon une structure stratifiée présentant plusieurs couches remplissant respectivement des fonctions distinctes, soit au moins une couche d'usure et une couche nerf, et d'autre part, un élément de renfort de sa tige qui est coupé à celle des couches dudit semelage qui constitue sa couche nerf, cette dernière étant directement disposée sur la couche d'usure qui vient au contact du sol. La structure globale qui en résulte donne ainsi davantage d'efficacité au couplage de l'élément de renforcement avec la couche supérieure lesquels sont réalisés de préférence en matière plastique injectée, donc pourvus d'une certaine rigidité.In the example of patent application EP 748 596, the shoe described and taught differs from the one which has just been exposed previously essentially by the fact that the sole assembly has no shock absorbing upper layer, or comfort layer, between the semi-rigid upper layer which is provided with the reinforcing element and the wear layer which comes into contact with the ground. In fact, the shoe comprises, on the one hand, a sole made according to a laminated structure having several layers fulfilling distinct functions respectively, i.e. at least one wear layer and one nerve, and on the other hand, a reinforcing element of its stem which is cut to that of the layers of said sole assembly which constitutes its nerve layer, the latter being directly disposed on the wear layer which comes in contact with the ground. The resulting overall structure thus gives more efficiency to the coupling of the reinforcing element with the upper layer which are preferably made of material injected plastic, therefore provided with a certain rigidity.

En effet, dans ce cas de construction il n'y a pas de dispersion des chocs et contraintes entre la couche d'usure qui vient au contact du sol et la couche supérieure qui constitue le nerf de la semelle et qui est munie de l'élément de renfort. Par conséquent, toutes les sollicitations et contraintes qui interviennent entre l'élément de renfort et la couche intermédiaire dont ce dernier est issu sont directement transmises à la couche d'usure qui vient au contact du sol et vice versa. Il y a donc une synergie optimum entre l'élément de renfort de la tige et le semelage qui permet d'améliorer notablement le comportement global de la chaussure en accrochage et en adhérence dynamique avec le sol ainsi qu'en précision et en stabilité, notamment grâce à la rigidité en torsion et en flexion obtenue dans l'interface semelage/sol ainsi réalisée.Indeed, in this construction case there is no dispersion of shocks and stresses between the wear layer which comes into contact with the ground and the upper layer which constitutes the nerve of the sole and which is provided with the reinforcing element. Consequently, all the stresses and constraints which intervene between the reinforcing element and the intermediate layer from which the latter is derived are directly transmitted to the wear layer which comes into contact with the ground and vice versa. So there is a optimum synergy between the reinforcement element of the upper and the sole which improves notably the overall behavior of the shoe in grip and in dynamic grip with the ground as well as in precision and stability, in particular thanks to the torsional and bending rigidity obtained in the sole / soil interface thus produced.

Par contre, un tel semelage, c'est-à-dire sans couche intermédiaire amortissante ou couche confort, se révèle particulièrement inadapté pour assurer une fonction de transfert capable d'atténuer correctement les chocs au niveau du pied de l'utilisateur à chaque contact avec le sol, c'est-à-dire d'amortir. Or, cette fonction de transfert avec amortissement est essentielle dans le semelage pour le bon déroulement du pied, qui s'effectue de manière globale en trois phases, amortissement-appui-propulsion, et pour prévenir certains traumatismes qui surviennent quasi généralement du fait de l'intensité des chocs et de leur fréquence dans des zones sensibles de la surface plantaire du pied, comme par exemple la zone du talon où les surcharges sont importantes.On the other hand, such a sole assembly, that is to say without an absorbing intermediate layer or layer comfort, is particularly unsuitable for ensuring a transfer function capable of attenuating shocks to the user's foot correctly on each contact with the ground, i.e. to amortize. However, this transfer function with damping is essential in the sole assembly for the smooth running of the foot, which takes place overall in three phases, damping-propulsion-propulsion, and to prevent certain traumas which occur almost generally as a result of the intensity of the shocks and their frequency in sensitive areas of the plantar surface of the foot, like for example the heel area where the overloads are significant.

En effet, au cours de certaines pratiques sportives telle que la randonnée lorsque la marche s'effectue en particulier dans le sens de la descente, et telle que la course à pied, le talon de la chaussure percute le sol de façon assez violente au moment de l'impact et les forces de réaction du sol peuvent atteindre des valeurs égales à plusieurs fois le poids du corps de l'utilisateur.Indeed, during certain sports such as hiking when walking takes place in particular in the direction of descent, and such as running, the heel of the shoe struck the ground fairly violently at impact and the reaction forces of the soil can reach values equal to several times the body weight of the user.

On conçoit donc aisément que la fonction d'amortissement du semelage est particulièrement importante pendant cette première phase de déroulement du pied, pour absorber au moins une partie de l'énergie du choc qui se produit à ce moment là en la dissipant sous forme de déformation élastique, et ainsi éviter des surcharges génératrices de lésions et/ou de blessures. It is therefore easy to see that the cushioning function of the sole assembly is particularly important during this first phase of unwinding of the foot, to absorb at least part of the energy of the shock which occurs at this time there by dissipating it in the form of elastic deformation, and thus avoid overloads generating injuries and / or injuries.

De plus, comme dans le cas du semelage de la chaussure exposée précédemment en référence au brevet US 5 317 820, la couche supérieure qui constitue le nerf de la semelle est immédiatement en vis-à-vis de la surface plantaire. Par conséquent, on retrouve les mêmes problèmes d'inconfort dans l'interface pied/semelle.In addition, as in the case of the sole of the shoe previously exposed with reference to the US Patent 5,317,820, the upper layer which constitutes the nerve of the sole is immediately in vis-à-vis the plantar surface. Therefore, we find the same discomfort problems in the foot / sole interface.

La présente invention a pour but de remédier aux inconvénients des chaussures précitées et se propose notamment :

  • de rendre interdépendants le renforcement de la tige et le semelage afin d'améliorer la stabilité du pied en respect de son bon déroulement, la précision des appuis dans l'interface semelage/sol, et l'accrochage sur le sol de la couche d'usure du semelage en le rendant plus incisif,
  • d'amortir les chocs lors de l'impact du semelage avec le sol sans altérer la stabilité du pied,
  • de garantir un niveau de confort optimum dans l'interface pied/semelage sans couper la perception nécessaire des appuis du semelage sur le sol,
  • de restituer une partie de l'énergie utilisée lors de l'amortissement pour stimuler le rebond lors du déroulement du pied, au moins pendant la phase de propulsion.
The purpose of the present invention is to remedy the drawbacks of the aforementioned shoes and is in particular proposed:
  • to make the reinforcement of the upper and the sole assembly interdependent in order to improve the stability of the foot while respecting its smooth running, the precision of the supports in the sole / soil interface, and the attachment of the layer of wear of the sole assembly making it more incisive,
  • to absorb the shocks during the impact of the sole assembly with the ground without altering the stability of the foot,
  • guarantee an optimum level of comfort in the foot / sole assembly without cutting the necessary perception of the sole support on the ground,
  • to restore part of the energy used during cushioning to stimulate rebound when the foot is unrolled, at least during the propulsion phase.

Pour atteindre ces objectifs, la chaussure selon l'invention comporte, d'une part, un semelage réalisé selon une structure stratifiée présentant plusieurs couches, soit au moins une couche d'usure et une couche nerf remplissant respectivement des fonctions distinctes, et d'autre part, un élément de renfort de la tige qui est coupé à celle des couches dudit semelage qui constitue sa couche nerf, cette dernière étant directement disposée sur la couche d'usure qui vient au contact du sol.To achieve these objectives, the shoe according to the invention comprises, on the one hand, a sole assembly produced according to a laminated structure having several layers, ie at least one wear layer and a nerve layer respectively fulfilling distinct functions, and on the other hand, an element of reinforcement of the upper which is cut to that of the layers of said sole assembly which constitutes its nerve layer, this the latter being directly disposed on the wear layer which comes into contact with the ground.

Elle se caractérise par le fait que l'élément de renfort est couplé à la couche nerf du semelage dans une région située entre le talon et le bout antérieur dudit semelage, et en ce qu'il s'étend à partir de cette région sur au moins un flanc de la tige en s'éloignant du semelage jusque dans la région située en vis-à-vis du talon de ce dernier, et par le fait qu'une couche de confort amortissante et élastique s'interpose entre la tige et ladite couche nerf du semelage.It is characterized by the fact that the reinforcing element is coupled to the nerve layer of the sole in a region located between the heel and the anterior end of said sole assembly, and in that it extends from this region on at least one side of the stem away from the sole assembly into the region located in vis-à-vis the heel of the latter, and by the fact that a layer of cushioning and elastic comfort is interposed between the upper and said nerve layer of the sole.

Selon un mode de réalisation avantageux, l'élément de renfort s'étend librement par rapport aux flancs de la tige.According to an advantageous embodiment, the reinforcing element extends freely relative to the sides of the stem.

Par cette construction, la chaussure obtenue présente :

  • un couplage efficace de l'élément de renfort et de la couche nerf du semelage avec la couche d'usure au contact du sol car on rend le renforcement de la tige interdépendant du semelage sans qu'il y ait d'interférence avec une couche intermédiaire amortissante,
  • un très bon amortissement dans l'interface semelage/sol car l'éloignement de l'élément de renfort par rapport au talon du semelage laisse ledit talon libre de fléchir lors des impacts avec le sol, ce qui respecte par ailleurs le bon déroulement du pied pendant la phase d'amortissement,
  • une bonne absorption des chocs car ceux-ci sont disséminés, donc atténués, une première fois au niveau de la couche d'usure, une deuxième fois au niveau de la couche nerf qui, du fait de sa rigidité en torsion et en flexion, les dissémine encore davantage sur quasiment toute sa surface, et une troisième fois au niveau de la couche de confort qui atténue encore leur intensité résiduelle avant qu'ils n'atteignent le pied,
  • un niveau de confort optimum dans l'interface semelage/pied car la surface plantaire du pied repose directement sur une couche amortissante élastique qui assure un contact souple en particulier à l'endroit des appuis du pied,
  • une certaine capacité à stimuler le rebond lors du déroulement du pied car, d'une part, la couche amortissante élastique, par sa nature même, repousse le pied pour reprendre sa forme initiale à la manière d'un renvoi élastique lors du déroulement du pied pendant la phase de propulsion, et d'autre part, du fait de la liberté de flexion du talon du semelage par rapport au renfort de la tige, le retour élastique en position initiale de ce dernier concourt au même effet de rebond.
By this construction, the shoe obtained has:
  • effective coupling of the reinforcement element and the nerve layer of the sole assembly with the wear layer in contact with the ground since the reinforcement of the upper is made interdependent on the sole assembly without any interference with an intermediate layer shock absorbing,
  • very good cushioning in the sole / ground interface because the distance of the reinforcing element from the sole of the sole leaves said heel free to bend during impacts with the ground, which moreover respects the smooth running of the foot during the amortization phase,
  • good shock absorption because they are disseminated, therefore attenuated, a first time at the wear layer, a second time at the nerve layer which, due to its torsional and flexural stiffness, spread even more over almost its entire surface, and a third time at the level of the comfort layer which further attenuates their residual intensity before they reach the foot,
  • an optimum level of comfort in the sole / foot interface because the plantar surface of the foot rests directly on an elastic shock-absorbing layer which ensures a flexible contact in particular at the place of the supports of the foot,
  • a certain capacity to stimulate rebound during the unwinding of the foot because, on the one hand, the elastic shock absorbing layer, by its very nature, repels the foot to resume its initial shape in the manner of an elastic return during the unwinding of the foot during the propulsion phase, and on the other hand, due to the freedom of flexion of the heel of the sole assembly relative to the reinforcement of the upper, the elastic return to the initial position of the latter contributes to the same rebound effect.

L'invention sera du reste mieux comprise et d'autres caractéristiques seront mises en évidence à l'aide de la description qui suit, en référence aux dessins schématiques annexés, illustrant à titre d'exemple non limitatifs, plusieurs modes de réalisation dans lesquels :

  • la figure 1 montre, vue en perspective éclatée, la construction d'une chaussure comportant un élément de renfort de la tige coupé à la couche nerf du semelage selon l'invention,
  • la figure 2 illustre la chaussure de la figure 1 une fois assemblée,
  • les figures 3 et 4 sont des vues en coupe longitudinale de la chaussure de la figure 2, vue selon la ligne III-III, montrant de manière schématique l'amortissement au talon lors de l'impact du semelage avec le sol,
  • la figure 5 est une vue en coupe transversale de la chaussure vue selon la ligne IV-IV de la figure 3 montrant comment l'élément de renfort participe à la tenue latérale et à la stabilité du pied,
  • la figure 6 est une vue en perspective d'une chaussure similaire à celle de la figure 1 à 5 mais dont l'élément de renfort est doté de moyens d'accrochage coopérant avec le système de fermeture de la chaussure,
  • la figure 7 est une vue en perspective illustrant un mode de construction où un élément de renfort supplémentaire est adapté sur celui qui est couplé à la couche nerf du semelage toujours conformément à l'invention,
  • les figures 8, 9 et 10, représentent, vues en perspective, plusieurs constructions possibles du renfort coupé à la couche nerf du semelage.
The invention will moreover be better understood and other characteristics will be highlighted with the aid of the description which follows, with reference to the appended schematic drawings, illustrating by way of nonlimiting example, several embodiments in which:
  • FIG. 1 shows, in exploded perspective view, the construction of a shoe comprising a reinforcement element of the upper cut to the nerve layer of the sole assembly according to the invention,
  • FIG. 2 illustrates the shoe of FIG. 1 once assembled,
  • FIGS. 3 and 4 are views in longitudinal section of the shoe of FIG. 2, seen along line III-III, schematically showing the cushioning at the heel during the impact of the sole assembly with the ground,
  • FIG. 5 is a cross-sectional view of the shoe seen along the line IV-IV of FIG. 3 showing how the reinforcing element contributes to the lateral holding and to the stability of the foot,
  • FIG. 6 is a perspective view of a shoe similar to that of FIG. 1 to 5 but the reinforcement element of which is provided with fastening means cooperating with the closure system of the shoe,
  • FIG. 7 is a perspective view illustrating a method of construction in which an additional reinforcing element is adapted to that which is coupled to the nerve layer of the sole assembly still in accordance with the invention,
  • Figures 8, 9 and 10 show, in perspective, several possible constructions of the reinforcement cut to the nerve layer of the sole.

La chaussure 1 représentée à titre d'exemple sur les figures 1 et 2 comporte, globalement, une tige 10 assemblée à un semelage 2 réalisé suivant une structure stratifiée, et un élément de renfort 20 de la tige 10 couplé directement au semelage 2. De manière connue en soi, la tige 10 présente une ouverture pour le passage du pied et un système de serrage-fermeture 11 tel qu'un laçage permettant l'adaptation du volume chaussant de la chaussure 1 au pied ; son assemblage avec le semelage 2 est réalisé, après enchâssement dans l'élément de renfort 20, en utilisant les techniques d'assemblage classiques telles que celles procédant par des collages, soudages, coutures, sertissages,...etc, l'élément de renfort 20 étant, de préférence, laissé libre par rapport à sa paroi notamment dans la région 21 qui correspond à celle, postérieure, du pied de l'utilisateur, et qui est située en vis-à-vis du talon 22 du semelage 2, mais pouvant être également totalement intégré à la tige par exemple par couture.The shoe 1 shown by way of example in FIGS. 1 and 2 generally comprises a upper 10 assembled to a sole assembly 2 produced according to a laminated structure, and a reinforcing element 20 of the rod 10 directly coupled to the sole assembly 2. In a manner known per se, the rod 10 has a opening for the passage of the foot and a tightening-closing system 11 such as a lacing allowing the adaptation of the footwear volume of the shoe 1 to the foot; its assembly with the sole assembly 2 is made, after embedding in the reinforcing element 20, using assembly techniques classics such as those using gluing, welding, seams, crimping, ... etc, the reinforcing element 20 being preferably left free relative to its wall, particularly in the region 21 which corresponds to that, posterior, of the foot of the user, and which is located opposite the heel 22 of the sole assembly 2, but can also be fully integrated into the upper, for example by sewing.

Ce dernier comporte une structure stratifiée dans laquelle :

  • une couche d'usure 3, possédant des propriétés de souplesse, d'adhérence et de résistance à l'abrasion, est destinée à venir au contact du sol,
  • une couche nerf 4, présentant des propriétés spécifiques de rigidité, est disposée directement sur la couche d'usure 3 pour, d'une part, assurer la dissémination sur quasiment toute sa surface des ondes de choc qui traversent la couche d'usure 3, et d'autre part, conférer au semelage 2 des caractéristiques d'adhérence et d'accrochage du sol,
  • une couche de confort 5, amortissante et élastique, est interposée entre la couche nerf 4 et la tige afin d'atténuer l'intensité des ondes de chocs transmises par la couche nerf 4 afin de procurer un certain niveau de confort à l'endroit des appuis du pied, grâce à sa souplesse, avec un effet de stimulation du rebond lors du déroulement du pied.
The latter has a layered structure in which:
  • a wear layer 3, having properties of flexibility, adhesion and resistance to abrasion, is intended to come into contact with the ground,
  • a nerve layer 4, having specific stiffness properties, is placed directly on the wear layer 3 in order, firstly, to ensure the dissemination over almost its entire surface of the shock waves which pass through the wear layer 3, and on the other hand, give the sole assembly 2 characteristics of adhesion and attachment of the ground,
  • a comfort layer 5, shock absorbing and elastic, is interposed between the nerve layer 4 and the rod in order to attenuate the intensity of the shock waves transmitted by the nerve layer 4 in order to provide a certain level of comfort at the location of the support of the foot, thanks to its flexibility, with a rebound stimulation effect during the unwinding of the foot.

Conformément à l'invention, l'élément de renfort 20 est coupé à la couche nerf 4 du semelage 2 dans la région 24 située entre le talon 22 et le bout antérieur 23 de ce dernier, sensiblement en correspondance de la voûte plantaire du pied de l'utilisateur car cette région n'est pratiquement pas sollicitée en flexion lors du déroulement du pied ; il s'étend sur chaque flanc 12, 12', de la tige 10 à partir de cette région 24 en s'éloignant du semelage 2 jusque dans la région 21 du talon 22 de celui-ci, ce qui lui confère la forme générale d'une bande présentant une branche arquée 20' dirigée sensiblement parallèlement au semelage 2 dans la région 21 du talon 22. Cette caractéristique relative au couplage de l'élément de renfort 20 avec la couche nerf 4 du semelage 2 est combinée avec l'interposition de la couche de confort 5 entre la couche nerf 4 et la tige 10, soit entre le pied de l'utilisateur et ladite couche nerf 4. La combinaison qui en résulte permet de rigidifier latéralement la chaussure sans perturber sa capacité d'amortissement ainsi que le bon déroulement du pied. En effet, tel qu'illustré notamment sur les figures 3 et 4, le talon 22 du semelage 2 reste libre de fléchir comme indiqué par la flèche 27 lors de l'impact du semelage 2 avec le sol 26, car l'élément de renfort 20 s'étend à distance dudit semelage 2 dans la région 21 correspondant à la partie postérieure du pied 50 de l'utilisateur. Par ailleurs, le pied 50 de l'utilisateur garde la possibilité d'être amorti par la couche de confort 5 car il est directement situé dessus.According to the invention, the reinforcing element 20 is cut at the nerve layer 4 of the sole assembly 2 in the region 24 situated between the heel 22 and the anterior end 23 of the latter, substantially in correspondence of the arch of the foot of the user because this region is practically not stressed in flexion during the unwinding of the foot; it extends on each side 12, 12 ′, of the rod 10 from from this region 24 away from the sole assembly 2 into the region 21 of the heel 22 thereof, which in turn gives the general shape of a strip having an arcuate branch 20 'directed substantially parallel to the sole assembly 2 in the region 21 of the heel 22. This characteristic relating to the coupling of the reinforcing element 20 with the nerve layer 4 of the sole assembly 2 is combined with the interposition of the comfort layer 5 between the nerve layer 4 and the rod 10, ie between the user's foot and said nerve layer 4. The resulting combination allows the shoe to be stiffened laterally without disrupt its damping capacity as well as the smooth running of the foot. Indeed, as illustrated in particular in FIGS. 3 and 4, the heel 22 of the sole assembly 2 remains free to flex as indicated by the arrow 27 during the impact of the sole assembly 2 with the ground 26, because the reinforcing element 20 extends at a distance said sole assembly 2 in the region 21 corresponding to the rear part of the foot 50 of the user. By elsewhere, the user's foot 50 retains the possibility of being cushioned by the comfort layer 5 because it is directly located on it.

La réalisation selon laquelle l'élément de renfort 20 s'étend librement sur les flancs 12, 12', de la tige 10 revêt un caractère important lorsque la tige 10 est, par exemple, montée collée ou cousue à une semelle première de montage 28 par l'intermédiaire de rabats 13, 13', venus de ses flancs 12, 12', tel que représenté à la figure 5, avant d'être assemblée au semelage 2. En effet, dans ce type d'assemblage, les flancs 12, 12', de la tige 10 sont fixés à la première de montage 28 avec une telle fermeté qu'ils sont astreints à suivre quasiment tous les déplacements relatifs de celle-ci par rapport à la couche de confort 5 sur laquelle elle est fixée.The embodiment according to which the reinforcing element 20 extends freely on the sides 12, 12 ′ of the rod 10 is important when the rod 10 is, for example, mounted glued or sewn to a first mounting sole 28 via flaps 13, 13 ', coming from its sides 12, 12', such as shown in Figure 5, before being assembled to the sole assembly 2. Indeed, in this type assembly, the sides 12, 12 'of the rod 10 are fixed to the first mounting 28 with such firmness that they are obliged to follow almost all the relative displacements of this one compared to the comfort layer 5 on which it is fixed.

Selon les caractéristiques d'amortissement et/ou de flexibilité souhaitées, le déplacement relatif des flancs 12, 12', par rapport à l'élément de renfort 20 peut avantageusement être limité en amplitude, en particulier dans la région postérieure 21 à l'endroit du talon 22 du semelage 2. dans l'exemple de construction présent, l'élément de renfort 20 est muni à cet effet d'une patte 30 sensiblement verticale qui s'étend en direction du semelage 2 en vis-à-vis du talon 22 de ce dernier. Un espace libre de valeur H prédéterminé par construction, tel que visible sur la figure 3, subsiste au repos entre l'extrémité libre 30' de la patte 30 et le semelage 2.According to the desired damping and / or flexibility characteristics, the relative displacement of the sides 12, 12 ′, with respect to the reinforcing element 20 can advantageously be limited in amplitude, in particular in the posterior region 21 at the location of the heel 22 of the sole assembly 2. in the present construction example, the reinforcing element 20 is provided for this purpose with a substantially vertical tab 30 which extends in the direction of the sole assembly 2 opposite the heel 22 of the latter. A free space of value H predetermined by construction, as visible in FIG. 3, remains at rest between the free end 30 'of the tab 30 and the sole assembly 2.

Ainsi, lors de l'impact du semelage 2 avec le sol 26, tel qu'illustré sur la figure 4, le talon 22 fléchit librement en direction de l'élément de renfort 20 en amortissant l'intensité du choc résultant de l'impact, et ce, pendant la réduction de l'espace libre H. Si l'intensité du choc est telle qu'elle n'a pu être totalement amortie pendant cette flexion du talon 22, ce dernier vient alors en butée contre l'extrémité libre 30' de la patte 30 qui, du fait de sa rigidité et de son attachement à l'élément de renfort 20, le bloque dans son mouvement de flexion. Par ces dispositions on obtient donc un semelage 2 dont le comportement varie, à partir d'un seuil prédéterminé d'intensité des chocs qui résultent de l'impact du semelage 2 avec le sol 26, autant dans sa capacité d'amortissement que dans celle de sa flexion.Thus, during the impact of the sole assembly 2 with the ground 26, as illustrated in FIG. 4, the heel 22 flexes freely in the direction of the reinforcing element 20 by absorbing the intensity of the shock resulting from the impact , and this, during the reduction of the free space H. If the intensity of the impact is such that it could not be fully absorbed during this bending of the heel 22, the latter then comes into abutment against the free end 30 ′ of the lug 30 which, due to its rigidity and of its attachment to the reinforcing element 20, blocks it in its bending movement. By these arrangements, a sole assembly 2 is therefore obtained, the behavior of which varies, starting from a predetermined threshold of intensity of the shocks which result from the impact of the sole assembly 2 with the ground 26, as much in its damping capacity as in that of its bending.

On remarque par ailleurs que la liberté de déplacement réciproque conférée aux flancs 12, 12', de la tige 10 et à l'élément de renfort 20, comme illustré à la figure 5, préserve la tenue latérale et la stabilité du pied 50 également lorsque l'amortissement est obtenu simplement par déformation élastique de la couche de confort 5. En effet, dans ce cas de fonctionnement, le pied 50 comprime, par réaction d'appui, la couche de confort 5 tel qu'indiqué par la flèche 29 et s'abaisse relativement par rapport à la branche arquée 20' de l'élément de renfort 20 sur chaque flanc 12, 12', de la tige 10. l'élément de renfort 20 emboíte donc encore davantage le pied 50 de l'utilisateur. Il est évident que cet effet est d'autant plus sensible que l'élément de renfort 20 s'étend en continu sur la tige 10, d'un flanc 12 à l'autre 12' en contournant la région postérieure 21 du pied de l'utilisateur comme dans le présent exemple. Selon certains détails, chaque branche arquée 20' de l'élément de renfort 20 contourne la région 34 des malléoles du pied 50 de l'utilisateur par dessous. Il est évident que d'autres réalisations sont possibles, et que, notamment, la branche arquée 20' de l'élément de renfort 20 pourrait contourner la région 34 des malléoles par dessus. Encore, l'élément de renfort 20 en forme générale de bande peut comporter, sur au moins un flanc 12 ou 12' de la tige 10 de la chaussure 1, au moins deux branches arquées 20' qui contournent la région 34 des malléoles, une branche 20' passant en-dessous et l'autre au-dessus.It is also noted that the freedom of reciprocal movement conferred on the sides 12, 12 ′, of the rod 10 and the reinforcement element 20, as illustrated in FIG. 5, preserves the lateral holding and the stability of the foot 50 also when the damping is obtained simply by deformation elastic of the comfort layer 5. Indeed, in this operating case, the foot 50 compresses, by support reaction, the comfort layer 5 as indicated by arrow 29 and relatively lowers by relative to the arcuate branch 20 ′ of the reinforcing element 20 on each side 12, 12 ′, of the rod 10. the reinforcing element 20 therefore fits even more the foot 50 of the user. It is obvious that this effect is all the more noticeable as the reinforcing element 20 extends continuously on the rod 10, from a side 12 to the other 12 'bypassing the posterior region 21 of the user's foot as in the present example. According to certain details, each arcuate branch 20 ′ of the reinforcing element 20 bypasses the region 34 of the malleoli of the user's foot 50 from below. It is obvious that other achievements are possible, and that, in particular, the arcuate branch 20 ′ of the reinforcing element 20 could bypass region 34 of the malleoli above. Still, the generally strip-like reinforcing element 20 can have, on at least one side 12 or 12 'of the upper 10 of the shoe 1, at least two branches arched 20 'which bypass region 34 of the malleoli, one branch 20' passing below and the other above.

En figure 6, la chaussure 31 est similaire à celle des figures 1 à 5 à la différence près que des moyens d'accrochage 32, 32', par exemple des crochets de laçage, sont rapportés sur l'élément de renfort 20 pour coopérer avec le système de maintien et de fermeture 11. Pour une question d'efficacité, ces moyens d'accrochage sont situés à proximité de la région 35 correspondant au coude-pied de l'utilisateur. Ainsi, lors du serrage du système de fermeture 11 le talon du pied de l'utilisateur est bien renvoyé dans l'emboítage constitué par toute la partie arrière de la chaussure 31 y compris la partie de l'élément de renfort 20 qui contourne la région postérieure 21.In FIG. 6, the shoe 31 is similar to that of FIGS. 1 to 5 with the difference that attachment means 32, 32 ′, for example lacing hooks, are attached to the element reinforcement 20 to cooperate with the holding and closing system 11. For a question efficiency, these attachment means are located near the region 35 corresponding to the elbow of the user. Thus, when tightening the closure system 11 the heel of the user's foot is returned in the socket formed by the entire rear part of the shoe 31 including the part of the reinforcing element 20 which bypasses the posterior region 21.

D'autres modes de réalisation de l'élément de renfort 20 couplé à la couche nerf 4 du semelage 2 peuvent être envisagés toujours conformément à l'invention.Other embodiments of the reinforcing element 20 coupled to the nerve layer 4 of the sole assembly 2 can still be considered in accordance with the invention.

Ainsi, en figure 7 par exemple, l'élément de renfort 20 qui est coupé à la couche nerf 4 du semelage 2 de la chaussure 1 ou 31, figurée en traits interrompus, est doté d'un autre élément de renfort 40, en forme générale d'étrier, qui est monté pivotant. Cet autre élément de renfort 40 s'étend sur la partie supérieure 41 de la tige 10 de la chaussure 1, 31, entourant la région postérieure 21 du pied de l'utilisateur.Thus, in FIG. 7 for example, the reinforcing element 20 which is cut at the nerve layer 4 of the sole assembly 2 of shoe 1 or 31, shown in broken lines, is provided with another reinforcing element 40, in general form of stirrup, which is pivotally mounted. This other reinforcing element 40 extends over the part upper 41 of upper 10 of shoe 1, 31, surrounding the posterior region 21 of the foot the user.

Selon une autre réalisation représentée en figure 8, l'élément de renfort 20 coupé à la couche nerf 4 du semelage 2 se présente sous la forme d'une bande comme décrite précédemment, c'est-à-dire qu'elle présente au moins une branche arquée 20' dirigée sensiblement parallèlement au semelage 2 dans la région 21 du talon 22 de ce dernier, mais qui est également dotée d'au moins une branche de renforcement 44 dirigée vers le bout antérieur 23 du semelage 2 (non représenté), laquelle branche 44 entoure au moins partiellement la région antérieure du pied de l'utilisateur. La branche de renforcement 44 de l'élément 20 renforce ainsi la tige de la chaussure vers l'avant tout en protégeant le pied des chocs latéraux et frontaux à la manière d'un "pare-pierre".According to another embodiment shown in FIG. 8, the reinforcing element 20 cut at the nerve layer 4 of the sole assembly 2 is in the form of a strip as described above, that is to say that it has at least one arcuate branch 20 ′ directed substantially parallel to the sole assembly 2 in the region 21 of the heel 22 of the latter, but which also has at least one branch of reinforcement 44 directed towards the front end 23 of the sole assembly 2 (not shown), which branch 44 at least partially surrounds the anterior region of the wearer's foot. The strengthening branch 44 of element 20 thus strengthens the upper of the shoe forward while protecting the foot from side and front impacts like a "rock guard".

A la figure 9, il est illustré une variante de réalisation dans laquelle la couche nerf 4 du semelage de la chaussure comporte en des endroits sélectionnés des découpes 46, 47, assurant une communication directe entre la couche d'usure 3 et la couche de confort 5 du semelage 2 visibles en figure 1. Ces découpes 46, 47, sont destinées à répercuter les réactions d'appui qui résultent du contact du semelage 2 avec le sol, pour les rendre plus perceptibles par certaines zones d'appui du pied de l'utilisateur.In FIG. 9, an alternative embodiment is illustrated in which the nerve layer 4 of the sole assembly the shoe comprises in selected places cutouts 46, 47, ensuring communication direct between the wear layer 3 and the comfort layer 5 of the sole assembly 2 visible in FIG. 1. These cutouts 46, 47, are intended to reflect the support reactions which result from the contact of the sole 2 with the ground, to make them more noticeable by certain support areas of the foot the user.

Dans l'exemple de réalisation représenté à la figure 10, l'élément de renfort 20 coupé à la couche nerf 4 du semelage ne s'étend pas d'un flanc à l'autre de la tige comme exposé dans les exemples qui précèdent, mais sur un flanc seulement de la tige de la chaussure. Selon une telle réalisation, le renforcement de la tige de la chaussure reste cependant totalement interdépendant du semelage comme visé par l'invention, et conduit aux mêmes résultats avec, évidemment, une prédominance accentuée du côté de la chaussure où s'étend l'élément de renfort 20. Bien entendu, ce dernier se prolonge jusque dans la région postérieure 21 située en vis-à-vis du talon 22 du semelage (non représenté) de manière à bien emboíter le pied de l'utilisateur. Il peut aussi être muni d'une patte 30 destinée à limiter l'amplitude de flexion du talon 22 lors de l'impact du semelage avec le sol, et la couche nerf à laquelle il est couplé peut comporter une découpe 46 permettant la communication directe entre la couche d'usure 3 et la couche de confort 5.In the embodiment shown in Figure 10, the reinforcing element 20 cut to the layer nerve 4 of the sole does not extend from one side to the other of the rod as shown in the examples which precede, but only on one side of the upper of the shoe. According to such an embodiment, the reinforcement of the upper of the shoe remains however totally interdependent of the sole assembly as targeted by the invention, and leads to the same results with, obviously, a predominance accentuated on the side of the shoe where the reinforcing element 20 extends. Of course, the latter extends to the posterior region 21 located opposite the heel 22 of the sole assembly (not shown) so as to properly fit the foot of the user. It can also be fitted with a tab 30 intended to limit the amplitude of flexion of the heel 22 during the impact of the sole assembly with the ground, and the nerve layer to which it is coupled may include a cutout 46 allowing communication direct between the wear layer 3 and the comfort layer 5.

Selon certains détails de construction, visibles sur les figures 1 à 10, la couche nerf 4 du semelage est avantageusement obtenue d'une seule pièce avec l'élément de renfort 20, quel que soit le nombre de branches 20', 44, le constituant. Evidemment, la couche nerf 4 et l'élément de renfort 20 peuvent aussi être réalisés indépendamment l'un de l'autre et être ensuite couplés entre eux dans la région 24 située entre le talon 22 et le bout antérieur 23 du semelage 2 par des procédés d'assemblage connus tels que rivetage, collage, soudage,...etc.According to certain construction details, visible in FIGS. 1 to 10, the nerve layer 4 of the sole assembly is advantageously obtained in one piece with the reinforcing element 20, whatever the number of branches 20 ′, 44, the constituent. Obviously, the nerve layer 4 and the reinforcing element 20 can also be carried out independently of each other and then be coupled together in region 24 located between the heel 22 and the front end 23 of the sole assembly 2 by known assembly methods such as riveting, gluing, welding, ... etc.

Encore, les réalisations montrées en référence aux figures 1, 2, 6 et 5, présentent l'élément de renfort 20 sensiblement en saillie sur les flancs 12, 12', de la tige 10 de la chaussure 1, 31. Il est cependant envisageable de le noyer dans l'épaisseur de la paroi des flancs 12, 12', et/ou de recouvrir d'un tissu d'habillage le masquant en totalité ou partiellement sur la tige 10.Again, the embodiments shown with reference to Figures 1, 2, 6 and 5, present the element of reinforcement 20 substantially projecting from the sides 12, 12 ′, of the upper 10 of the shoe 1, 31. It is however conceivable to drown it in the thickness of the wall of the sides 12, 12 ′, and / or to cover it a covering fabric masking it in whole or in part on the rod 10.

Par ailleurs, l'élément de renfort 20 peut être solidarisé des flancs 12, 12', de la tige 10, par exemple par couture, collage, soudage,...etc, sans pour cela sortir du cadre de l'invention ; en effet, dans un tel cas de construction, on utilise alors l'élément de renfort 20 à la manière d'une poutre de flexion qui participe à l'amortissement en freinant l'abaissement de la tige 10 en direction du semelage 2.Furthermore, the reinforcing element 20 can be secured to the sides 12, 12 ′, of the rod 10, by example by sewing, gluing, welding, etc., without thereby departing from the scope of the invention; indeed, in such a construction case, the reinforcing element 20 is then used in the manner of a beam bending which contributes to damping by slowing down the lowering of the rod 10 towards the sole assembly 2.

Enfin, l'invention est relative aux chaussures en général et peut donc être appliquée autant sur les chaussures de marche classique que sur les chaussures de sports destinées à la randonnée, l'alpinisme, la course, le ski,...etc, ainsi que sur les chaussures destinées à être associées à des appareils d'évolution roulants tels que par exemple les patins à roulettes, les patins en ligne, et/ou des appareils d'évolution glissants tels que les patins à glace ou les patins à neige.Finally, the invention relates to shoes in general and can therefore be applied to both classic walking shoes than on sports shoes intended for hiking, mountaineering, running, skiing, etc., as well as on shoes intended to be associated with rolling evolutionary devices such as for example roller skates, inline skates, and / or sliding evolutionary devices such as ice skates or snow skates.

Claims (12)

Chaussure (1, 31) comportant, d'une part, un semelage (2) réalisé selon une structure stratifiée présentant plusieurs couches (3, 4, 5), soit au moins une couche d'usure (3) et une couche nerf (4) remplissant respectivement des fonctions distinctes, et d'autre part, un élément de renfort (20) de la tige (10) qui est coupé à celle (4) des couches (3, 4, 5) dudit semelage (2) qui constitue sa couche nerf, cette dernière étant directement disposée sur la couche d'usure (3) qui vient au contact du sol, caractérisée par le fait que l'élément de renfort (20) est couplé à la couche nerf (4) du semelage (2) dans une région (24) située entre le talon (22) et le bout antérieur (23) de ce dernier, et en ce qu'il s'étend, à partir de cette région (24), sur au moins un flanc (12, 12') de la tige (10) en s'éloignant du semelage (2) jusque dans une région postérieure (21), correspondant à la région postérieure du pied de l'utilisateur, située en vis-à-vis du talon (22) de ce dernier, et par le fait qu'une couche de confort (5) amortissante et élastique du semelage (2) est interposée entre la tige (10) et ladite couche nerf (4) du semelage (2).Shoe (1, 31) comprising, on the one hand, a sole assembly (2) produced according to a laminated structure having several layers (3, 4, 5), i.e. at least one wear layer (3) and one nerve layer (4) respectively fulfilling distinct functions, and on the other hand, a reinforcing element (20) of the rod (10) which is cut to that (4) of the layers (3, 4, 5) of said sole assembly (2) which constitutes its layer nerve, the latter being directly disposed on the wear layer (3) which comes into contact with the ground, characterized by the fact that the reinforcing element (20) is coupled to the nerve layer (4) of the sole assembly (2) in a region (24) located between the heel (22) and the anterior end (23) of the latter, and in that it extends from this region (24) on at least one side (12, 12 ') of the rod (10) away from the sole assembly (2) up to a posterior region (21), corresponding to the posterior region of the foot of the user, located opposite the heel (22) of the latter, and by the fact that a comfort layer (5) shock absorbing and elastic sole (2) is interposed between the rod (10) and said nerve layer (4) of the sole assembly (2). Chaussure selon la revendication 1, caractérisée par le fait que le renfort (20) s'étend librement par rapport aux flancs (12, 12') de la tige (10).Shoe according to claim 1, characterized in that the reinforcement (20) extends freely relative to the sides (12, 12 ') of the rod (10). Chaussure selon l'une des revendications 1 ou 2, caractérisée par le fait que sur au moins un flanc (12, 12') de la tige (10) l'élément de renfort (20) se présente sous la forme d'une bande qui comporte au moins une branche arquée (20') contournant la région (34) correspondant aux malléoles du pied de l'utilisateur, et qui se prolonge jusque dans la région postérieure (21) sensiblement parallèlement au semelage (2).Shoe according to one of claims 1 or 2, characterized in that on at least one side (12, 12 ') of the rod (10) the reinforcing element (20) is in the form of a strip which comprises at least one arched branch (20 ') bypassing the region (34) corresponding to the malleoli of the user's foot, and which extends to the posterior region (21) substantially parallel to the sole assembly (2). Chaussure selon l'une des revendications 1 ou 2, caractérisée par le fait que sur au moins un flanc (12, 12') de la tige (10) l'élément de renfort (20) se présente sous la forme d'une bande qui comporte deux branches arquées (20') contournant la région (34) correspondant aux malléoles du pied de l'utilisateur, une branche (20') passant en-dessous de cette région (34), et l'autre branche (20') au-dessus.Shoe according to one of claims 1 or 2, characterized in that on at least one side (12, 12 ') of the rod (10) the reinforcing element (20) is in the form of a strip which has two arched branches (20 ') bypassing the region (34) corresponding to the malleoli of the foot of the user, one branch (20 ') passing below this region (34), and the other branch (20') above. Chaussure selon l'une des revendications 3 ou 4, caractérisée par le fait que l'élément de renfort (20) comporte au moins une branche (20') qui entoure la région (21) postérieure du pied de l'utilisateur.Shoe according to one of claims 3 or 4, characterized in that the reinforcing element (20) has at least one branch (20 ') which surrounds the region (21) posterior to the foot of the user. Chaussure selon l'une des revendications 3, 4 ou 5, caractérisée par le fait que la bande formant l'élément de renfort (20) comporte au moins une branche de renforcement (44) dirigée vers le bout antérieur (23) du semelage (2).Shoe according to one of claims 3, 4 or 5, characterized in that the strip forming the reinforcing element (20) comprises at least one reinforcing branch (44) directed towards the front end (23) of the sole assembly (2). Chaussure selon la revendication 6, caractérisée par le fait qu'au moins une branche de renforcement (44) dirigée vers le bout antérieur (23) du semelage (2) entoure au moins partiellement la région antérieure du pied de l'utilisateur.Shoe according to claim 6, characterized in that at least one branch of reinforcement (44) directed towards the front end (23) of the sole assembly (2) at least partially surrounds the user's front foot region. Chaussure selon l'une des revendications 3 à 7, caractérisée par le fait que l'élément de renfort (20) est muni d'une patte (30) sensiblement verticale s'étendant en direction du semelage (2) dans la région postérieure (21) située en vis-à-vis du talon (22) de ce dernier, un espace libre de valeur (H), prédéterminée par construction, subsistant, au repos, entre l'extrémité libre (30') de la' patte (30) et ledit semelage (2) afin de déterminer la liberté de flexion du talon (22) dudit semelage (2) par rapport à l'élément de renfort (20). Shoe according to one of claims 3 to 7, characterized in that the reinforcing element (20) is provided with a substantially vertical tab (30) extending in the direction of the sole assembly (2) in the posterior region (21) located opposite the heel (22) of the latter, a free space of value (H), predetermined by construction, remaining, at rest, between the free end (30 ') of the' tab (30) and said sole assembly (2) in order to determine the freedom of flexion of the heel (22) of said sole assembly (2) with respect to to the reinforcing element (20). Chaussure selon l'une des revendications 1 à 8, caractérisée par le fait que l'élément de renfort (20) s'étend en continu sur la tige (10) d'un flanc (12) à l'autre (12') en contournant la région postérieure (21) du pied de l'utilisateur.Shoe according to one of claims 1 to 8, characterized in that the reinforcing element (20) extends continuously on the rod (10) from one side (12) to the other (12 ') bypassing the region posterior (21) of the user's foot. Chaussure selon l'une des revendications 1 à 9, caractérisée par le fait que l'élément de renfort (20) est doté de moyens d'accrochage (32, 32') destinés à coopérer avec le système de maintien et de fermeture (11) de la chaussure (31) sur le pied de l'utilisateur.Shoe according to one of claims 1 to 9, characterized in that the reinforcing element (20) is provided with hooking means (32, 32 ') intended to cooperate with the system for holding and closure (11) of the shoe (31) on the foot of the user. Chaussure selon l'une des revendications 1 à 10, caractérisée par le fait que la couche nerf (4) comporte en des endroits sélectionnés des découpes (46, 47) assurant une communication directe entre la couche d'usure (3) et la couche de confort (5).Shoe according to one of claims 1 to 10, characterized in that the nerve layer (4) has cut-outs (46, 47) at selected locations ensuring direct communication between the wear layer (3) and the comfort layer (5). Chaussure selon l'une des revendications 1 à 11, caractérisée par le fait qu'un autre élément de renfort (40), en forme générale d'étrier, est monté pivotant sur l'élément de renfort (20) coupé à la couche nerf (4) et s'étend sur la partie supérieure (41) de la tige (10) de la chaussure (1, 31) en entourant la région postérieure du pied de l'utilisateur.Shoe according to one of claims 1 to 11, characterized in that another element of reinforcement (40), generally in the shape of a stirrup, is pivotally mounted on the reinforcement element (20) cut at the nerve layer (4) and extends over the upper part (41) of the upper (10) of the shoe (1, 31) in surrounding the posterior region of the user's foot.
EP98110786A 1997-06-27 1998-06-12 Multilayer sole coupled to a reinforcement of the shoe upper Expired - Lifetime EP0887027B1 (en)

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FR9708555A FR2765083B1 (en) 1997-06-27 1997-06-27 MULTILAYERED SOLE COUPLED TO SHOE UPPER REINFORCEMENT
FR9708555 1997-06-27

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EP0887027A1 true EP0887027A1 (en) 1998-12-30
EP0887027B1 EP0887027B1 (en) 2002-09-04

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EP (1) EP0887027B1 (en)
AT (1) ATE223163T1 (en)
CA (1) CA2242013A1 (en)
DE (1) DE69807594T2 (en)
ES (1) ES2179403T3 (en)
FR (1) FR2765083B1 (en)

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US20210204651A1 (en) * 2020-01-03 2021-07-08 Nike, Inc. Sole structure for article of footwear
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EP1033088A1 (en) * 1999-03-02 2000-09-06 Salomon S.A. Shoe with anti-vibration solestructure
FR2790371A1 (en) 1999-03-02 2000-09-08 Salomon Sa SHOE WITH ANTI-VIBRATION SOLE
FR2802781A1 (en) * 1999-12-24 2001-06-29 Rossignol Sa WALKING SHOE
FR2898252A1 (en) * 2006-03-07 2007-09-14 Salomon Sa Sports shoe for e.g. running, has outer bottom with outer sole or contact layer made of adherent material, where insert with front and rear part has rigid characteristics arranged partly in contact with upper surface of sole
EP1972224A1 (en) * 2007-03-19 2008-09-24 Salomon S.A. Shoe and its bottom assembly
FR2914156A1 (en) * 2007-03-29 2008-10-03 Salomon Sa Sport shoe for e.g. practicing tennis, has holding/stiffening body structure arranged on lateral sides of flexible upper part, and stiffening frame arranged in lower part of shoe along parallel plane to plane of bottom part
FR2923362A1 (en) * 2007-11-13 2009-05-15 Salomon Sa Soc Par Actions Sim IMPROVED ROD TIGHTENING SHOE
EP2060196A1 (en) * 2007-11-13 2009-05-20 Salomon S.A.S. Boot with improved leg tightening
CN101433388B (en) * 2007-11-13 2012-02-22 萨洛蒙股份有限公司 Boot with improved leg tightening
CN101611950B (en) * 2008-06-25 2014-01-08 萨洛蒙股份有限公司 Shoe with improved bottom assembly
EP2332433A1 (en) * 2008-09-30 2011-06-15 ASICS Corporation Athletic shoe with heel counter for maintaining shape of heel section
EP2332433A4 (en) * 2008-09-30 2013-10-16 Asics Corp Athletic shoe with heel counter for maintaining shape of heel section
FR2976161A1 (en) * 2011-06-09 2012-12-14 Salomon Sas SHOE WITH IMPROVED SHAFT.
CN108835765A (en) * 2017-04-07 2018-11-20 黎明职业大学 A kind of basketball shoes with damping, buffering function
CN108835765B (en) * 2017-04-07 2020-09-18 黎明职业大学 Basketball shoes with shock attenuation buffer function

Also Published As

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FR2765083A1 (en) 1998-12-31
ES2179403T3 (en) 2003-01-16
US6000148A (en) 1999-12-14
EP0887027B1 (en) 2002-09-04
FR2765083B1 (en) 1999-08-27
ATE223163T1 (en) 2002-09-15
DE69807594D1 (en) 2002-10-10
DE69807594T2 (en) 2003-05-22
CA2242013A1 (en) 1998-12-27

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