EP0401108A1 - Sport shoesole with better propulsion and touchdown - Google Patents

Sport shoesole with better propulsion and touchdown Download PDF

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Publication number
EP0401108A1
EP0401108A1 EP90401429A EP90401429A EP0401108A1 EP 0401108 A1 EP0401108 A1 EP 0401108A1 EP 90401429 A EP90401429 A EP 90401429A EP 90401429 A EP90401429 A EP 90401429A EP 0401108 A1 EP0401108 A1 EP 0401108A1
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EP
European Patent Office
Prior art keywords
teeth
sole
toothing
marginal
sole assembly
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
EP90401429A
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German (de)
French (fr)
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EP0401108B1 (en
Inventor
Jean-Gabriel Barre
Rémy Figureau
Jean-Pierre Branger
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Patrick International SA
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Patrick International SA
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    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/22—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer
    • A43B13/223—Profiled soles

Definitions

  • a sports shoe must fulfill several functions: - facilitate the contact of the foot with the ground; - avoid slipping or on the contrary encourage it; - erase the roughness of the ground; - isolate the foot from climatic aggressions; - be light; - dampen shocks, especially vibrations and their harmonics; - resist wear.
  • the feet alternately leave the ground to ensure propulsion and return to make contact with the ground more or less suddenly and it is the reception.
  • the heel first leaves the ground and the propelling effect is exerted on the metatarsophalangeal joint and develops up to the level of the big toe.
  • the propulsion effort is located substantially in the center of the forefoot and on its inner edge.
  • the present invention therefore aims to promote propulsion and reception by avoiding movable slippage, as well as damping shock and vibration.
  • the sole assembly comprises substantially flush two marginal teeth whose teeth are asymmetrical and oriented opposite one another depending on whether they are located along the outer edge or the inner edge of the sole assembly, each tooth having a leading portion and a trailing portion and the teeth of the outer marginal toothing being oriented attack surface forward, while those of the inner teeth are facing attack surface back.
  • each tooth has a leading part forming a steep flank and a trailing part forming a ridge and a rounded flank, the leading part being made of a relatively adherent soft material and the trailing part being made of a harder material resistant to abrasion.
  • the outer marginal toothing and the metatarsal part of the inner marginal toothing are made of a relatively adherent soft material, while the remaining extreme parts of the inner marginal toothing, the tip, the camber and the back of the heel and the part which connects said teeth between them are made of a less adherent material but whose abrasion resistance is high.
  • the most adherent material is a rubber with low Shore hardness, of the order of 50 A, while the most abrasion-resistant material is a rubber with Shore hardness. higher, of the order of 60 A.
  • the sole assembly may then comprise an intermediate layer of light foam forming a body with an underlying wear layer comprising in particular the marginal teeth, this intermediate layer passing through at least one opening formed in the wear layer between said teeth to form at least one skate.
  • the sole assembly is integral with at least one insert constituted by a specific damping material capable of intervening for a particular range of frequencies.
  • the or each insert consists of a polymer derived from polyisoprene.
  • the or each of at least some of the inserts can be constituted by several elements in superimposed layers and / or several elements in concentric layers nested one inside the other, these elements being in damping materials reacting at different frequencies suitably selected.
  • Inserts may be incorporated in at least some of the marginal teeth which for this purpose have a cutaway on their trailing part, or else in the foam pad or pads passing through the rubber wear layer, in particular at the heel or under a thin veil of the rubber wear layer connecting the marginal teeth.
  • the crests of the external and internal teeth form an upwardly converging dihedron.
  • the sole assembly has an underlying wear layer 1 and a light foam interlayer 2.
  • Layer 1 has substantially outcropping a marginal toothing 3 extending outside the foot and a marginal toothing 4 extending inside.
  • the external toothing 3 has at the front an attack part constituted by steep flanks 5 making it possible to receive without slipping and a trailing part directed towards the rear and constituted by rounded flanks 6 connected to the steep flanks before by ridges 7.
  • the internal toothing 4 is similar, but its steep flanks 8 are located at the rear to stimulate the start-up which can follow without slippage, these steep flanks 8 being connected to rounded front flanks 9 by ridges 10.
  • the internal toothing 8 to 10 can cover the forefoot and the heel, being interrupted at the camber.
  • the underlying wear layer 1 also has a transverse notch 11 at the end and a transverse notch 12 at the back slightly raised from the heel.
  • the underlying wear layer 1 delimits openings 13 and 14 situated at the location of the forefoot and of the heel respectively. , so that the foam of the intermediate layer 2 passes through them forming pads 15 and 16. These pads have on their visible underside flattened curved ridges 17 and 18, ridges which are asymmetrical and reversed from one pad to another ( figure 4).
  • each tooth of the teeth 3 and 4 is hollow and its internal cavity 19 is filled with the foam constituting the intermediate layer 2, which makes it possible to lighten the sole assembly.
  • the wear layer 1 consists of two mutually compatible materials, one being selected to favor its adhesion, while the other is selected to favor its resistance to abrasion .
  • the intermediate layer 2 is made of a material selected for its high damping power, its lightness and its ability to provide the connection between the wear layer 1 and the upper of the shoe, not shown.
  • the adhesive material of the wear layer 1 is a rubber called rubber Ad whose Shore hardness is of the order of 50 A, while the abrasion-resistant material is a rubber called rubber Ab whose Shore hardness is higher and of the order of 60 A.
  • the material of the interlayer 2 is a polyurethane foam.
  • each of the teeth of the outer teeth 3 comprises a leading portion 20 of rubber Ad or other adherent material integral with a trailing portion 21 of rubber Ab or other abrasion resistant material.
  • the leading part 20 is located at the front and the trailing part 21 at the rear.
  • the teeth are identical, in this first embodiment, to those of the external toothing 3, except that the leading parts 20 are located at the rear and the parts leakage 21 at the front.
  • the wear layer 1 is constituted by two parts 23 and 24 made of adhesive material such as rubber Ad and by two pads 25 and 26 made of abrasion resistant material such as rubber Ab.
  • the adherent pads 23 and 24 correspond to the outer marginal toothing 3 and to the metatarsal part of the inner marginal toothing 4; they delimit between them the opening 13, moreover in cooperation with the pads 25 and 26.
  • These abrasion pads 25 and 26 correspond to the extreme remaining parts of the internal toothing 4, with the notched end 11, at the notched rear 12 and to part 27 which separates the openings 13 and 14.
  • the manufacture of the wear layer 1 according to said second embodiment by successive vulcanizations of the two pairs of pads 23, 24 and 25, 26 is easier and just as reliable.
  • the wear layer 1 is constituted by two parts 28 and 29 respectively of adhesive material such as rubber Ad and of abrasion-resistant material such as rubber Ab.
  • the so-called adherent part 28 extends over the entire width of the external toothing 3 from its peripheral edge to the openings 13 and 14.
  • the so-called abrasion-resistant part 29 s extends along the inner toothing 4 and extends along the toe and heel of the sole assembly.
  • the internal toothing 4 is made of abrasion-resistant material Ab at the edge and of material adhering to the openings 13 and 14.
  • this material Ab also constitutes the toe 11, the heel 12 and the part 27 of the layer. 1 around said openings.
  • the border 29 can be extended at 29 ′ at the periphery of the external toothing 3.
  • the foam interlayer 2 makes it possible to absorb shock and vibration satisfactorily.
  • the material constituting all or part of an insert 30 is selected for its ability to absorb vibrations according to a particular range of frequencies.
  • This material can be a polymer derived from polyisoprene such as that sold by the company VIBRACHOC under the name "Viptene”.
  • inserts 30a can be incorporated in the ridges 7, 10 of at least some of the teeth of the teeth 3, 4.
  • Inserts 30b can also be incorporated in the foam pads 15, 16 to be flush their apparent surface or be drowned in the mass.
  • Inserts 30c embedded in the foam of the midsole 2 can also be placed in contact with a thin web 31 (FIG. 11) of the wear layer 1 connecting the teeth 3, 4 with or without opening openings 13, 14.
  • these inserts 30a to 30c can be monolithic and made of the same material as is the case for the insert of FIG. 10 designated by the reference 30.1. They can also be formed by several concentric elementary layers as is the case for the insert designated in FIG. 10 by the reference 30.2. They can also be constituted by several superimposed elementary layers as is the case for the insert designated in FIG. 10 by the reference 30.3. They can also consist of several elementary nesting bowls as is the case for the insert designated in FIG. 11 by the reference 30.4.
  • shock absorbing elements 30.2 to 30.4 are obviously sensitive to different frequency ranges which may or may not overlap at their borders.

Abstract

The sole comprises, substantially flush: - an outer edge toothing (3) whose steep sides (5) are located to the front, and - an inner edge toothing (4) whose steep sides (8) are located to the rear. <IMAGE>

Description

Une chaussure de sport doit satisfaire plusieurs fonctions :
- faciliter le contact du pied avec le sol ;
- éviter les glissements ou au contraire les favoriser ;
- effacer les aspérités du terrain ;
- isoler le pied des agressions climatiques ;
- être légère ;
- amortir les chocs, surtout les vibrations et leurs harmoniques ;
- résister à l'usure.A sports shoe must fulfill several functions:
- facilitate the contact of the foot with the ground;
- avoid slipping or on the contrary encourage it;
- erase the roughness of the ground;
- isolate the foot from climatic aggressions;
- be light;
- dampen shocks, especially vibrations and their harmonics;
- resist wear.

Lors d'un déplacement (marche, course, saut), les pieds quittent alternativement le sol pour assurer la propulsion et reviennent prendre contact avec le sol plus ou moins brutalement et c'est la réception.During a movement (walking, running, jumping), the feet alternately leave the ground to ensure propulsion and return to make contact with the ground more or less suddenly and it is the reception.

Pour assurer la propulsion, le talon quitte en premier le sol et l'effet de propulsion s'exerce au niveau de l'articulation métatarsophalangienne et se développe jusqu'au niveau du gros orteil. Schématiquement, l'effort de propulsion est localisé sensiblement au centre de l'avant pied et sur son bord intérieur. Bien entendu, il est essentiel que l'effort au contact sur sol provoque une propulsion vers l'avant et ne soit pas perdu dans un glissement vers l'arrière.To ensure propulsion, the heel first leaves the ground and the propelling effect is exerted on the metatarsophalangeal joint and develops up to the level of the big toe. Schematically, the propulsion effort is located substantially in the center of the forefoot and on its inner edge. Of course, it is essential that the force in contact with the ground causes a propulsion towards the front and is not lost in a sliding backwards.

Lors de la réception, la reprise de contact avec le sol s'effectue par le talon, mais plus la vitesse de déplacement croît, plus les genoux montent et plus la zone de reprise du contact avec le sol se déplace progressivement vers l'avant en s'effectuant alors sur l'extérieur du pied. Bien entendu, il est essentiel que le contact s'établisse sans glissement vers l'avant.During reception, the resumption of contact with the ground is effected by the heel, but the more the speed of movement increases, the more the knees rise and the more the zone of resumption of contact with the ground gradually moves forward. taking place on the outside of the foot. Of course, it is essential that contact is made without sliding forward.

Par ailleurs, dans tous les cas, l'importance du choc est ressentie au niveau du talon et peut atteindre cinq fois le poids du corps. Il se produit alors des vibrations qui ébranlent le corps humain. La propagation de ces vibrations et leur répétition sont plus ou moins à l'origine de pathologies (tendinites, problèmes dorsaux...) et non des moindres, nécessitant des soins attentifs et répétés, aucun remède durable ne pouvant actuellement les guérir.In addition, in all cases, the importance of the shock is felt at the heel and can reach five times the weight of the body. This produces vibrations that shake the human body. The propagation of these vibrations and their repetition are more or less the cause of pathologies (tendonitis, back problems ...) and not least, requiring careful care and repeated, no lasting remedy can currently cure them.

La présente invention a donc pour but de favoriser la propulsion et la réception en évitant les glissements muisibles, ainsi que d'amortir les chocs et vibrations.The present invention therefore aims to promote propulsion and reception by avoiding movable slippage, as well as damping shock and vibration.

Dans ce but et conformément à l'invention, le semelage comporte sensiblement en affleurement deux dentures marginales dont les dents sont dissymétriques et orientées à l'opposé les unes des autres suivant qu'elles sont situées le long du bord extérieur ou du bord intérieur du semelage, chaque dent présentant une partie d'attaque et une partie de fuite et les dents de la denture marginale extérieure étant orientées surface d'attaque vers l'avant, tandis que celles de la denture intérieure sont orientées surface d'attaque vers l'arrière.For this purpose and in accordance with the invention, the sole assembly comprises substantially flush two marginal teeth whose teeth are asymmetrical and oriented opposite one another depending on whether they are located along the outer edge or the inner edge of the sole assembly, each tooth having a leading portion and a trailing portion and the teeth of the outer marginal toothing being oriented attack surface forward, while those of the inner teeth are facing attack surface back.

Suivant une première forme de réalisation, chaque dent comporte une partie d'attaque formant un flanc abrupt et une partie de fuite formant une crête et un flanc arrondi, la partie d'attaque étant en un matériau mou relativement adhérent et la partie de fuite étant en un matériau plus dur résistant à l'abrasion.According to a first embodiment, each tooth has a leading part forming a steep flank and a trailing part forming a ridge and a rounded flank, the leading part being made of a relatively adherent soft material and the trailing part being made of a harder material resistant to abrasion.

Suivant une deuxième forme de réalisation, la denture marginale extérieure et la partie métatarsienne de la denture marginale intérieure sont en un matériau mou relativement adhérent, tandis que les parties restantes extrêmes de la denture marginale intérieure, le bout, la cambrure et l'arrière du talon ainsi que la partie qui relie lesdites dentures entre elles sont en un matériau moins adhérent mais dont la résistance à l'abrasion est élevée.According to a second embodiment, the outer marginal toothing and the metatarsal part of the inner marginal toothing are made of a relatively adherent soft material, while the remaining extreme parts of the inner marginal toothing, the tip, the camber and the back of the heel and the part which connects said teeth between them are made of a less adherent material but whose abrasion resistance is high.

Dans un cas comme dans l'autre, le matériau le plus adhérent est un caoutchouc ayant une faible dureté Shore, de l'ordre de 50 A, tandis que le matériau résistant le plus à l'abra­sion est un caoutchouc dont la dureté Shore est plus élevée, de l'ordre de 60 A.In either case, the most adherent material is a rubber with low Shore hardness, of the order of 50 A, while the most abrasion-resistant material is a rubber with Shore hardness. higher, of the order of 60 A.

Le semelage peut alors comporter une couche intercalaire en mousse légère faisant corps avec une couche sous-jacente d'usure comportant notamment les dentures marginales, cette couche inter­calaire traversant au moins une ouverture ménagée dans la couche d'usure entre lesdites dentures pour former au moins un patin.The sole assembly may then comprise an intermediate layer of light foam forming a body with an underlying wear layer comprising in particular the marginal teeth, this intermediate layer passing through at least one opening formed in the wear layer between said teeth to form at least one skate.

Suivant une troisième forme de réalisation, le semelage fait corps avec au moins un insert constitué par un matériau amortisseur spécifique susceptible d'intervenir pour une plage particulière de fréquences.According to a third embodiment, the sole assembly is integral with at least one insert constituted by a specific damping material capable of intervening for a particular range of frequencies.

Avantageusement, le ou chaque insert est constitué par un polymère dérivé de polyisoprène.Advantageously, the or each insert consists of a polymer derived from polyisoprene.

Le ou chacun de certains au moins des inserts peut être constitué par plusieurs éléments en couches superposées et/ou plusieurs éléments en couches concentriques emboîtées les unes dans les autres, ces éléments étant en des matériaux amortisseurs réagissant à des fréquences différentes convenablement sélec­tionnées.The or each of at least some of the inserts can be constituted by several elements in superimposed layers and / or several elements in concentric layers nested one inside the other, these elements being in damping materials reacting at different frequencies suitably selected.

Des inserts peuvent être incorporés dans certaines au moins des dents marginales qui présentent à cet effet sur leur partie de fuite un pan coupé, ou bien dans le ou les patins en mousse traversant la couche d'usure en caoutchouc notamment à l'endroit du talon ou encore sous un voile mince de la couche d'usure en caoutchouc reliant les dentures marginales.Inserts may be incorporated in at least some of the marginal teeth which for this purpose have a cutaway on their trailing part, or else in the foam pad or pads passing through the rubber wear layer, in particular at the heel or under a thin veil of the rubber wear layer connecting the marginal teeth.

Par ailleurs, les crêtes des dentures extérieure et intérieure forment un dièdre convergeant vers le haut.In addition, the crests of the external and internal teeth form an upwardly converging dihedron.

Divers autres caractéristiques et avantages de l'inven­tion ressortent d'ailleurs de la description détaillée qui suit.Various other characteristics and advantages of the invention will also emerge from the detailed description which follows.

Des formes de réalisation de l'objet de l'invention sont représentées, à titre d'exemples non limitatifs, sur le dessin annexé.Embodiments of the object of the invention are shown, by way of nonlimiting examples, in the accompanying drawing.

Sur ce dessin :

  • - la figure 1 est une vue de dessous illustrant une première forme de réalisation du semelage conforme à l'invention ;
  • - les figures 2 et 3 sont des élévations latérales prises suivant les lignes II-II et III-III respectivement de la figure 1 ;
  • - la figure 4 est une coupe partielle prise suivant la ligne IV-IV de la figure 1 ;
  • - la figure 5 est une vue analogue à la figure 1 mais simplifiée, pour montrer dans une deuxième forme de réalisation du semelage les parties constituant la couche sous-jacente d'usure ;
  • - la figure 6 est une coupe prise à plus grande échelle suivant la ligne VI-VI de la figure 5 en travers de la partie à adhésion élevée ;
  • - la figure 7 est une coupe partielle longitudinale prise suivant la ligne VII-VII de la figure 1 ;
  • - la figure 8 est une vue analogue à la figure 1, illus­trant une troisième forme de réalisation de semelage de l'inven­tion, dans laquelle des inserts en matériau amortisseur particulier sont incorporés ;
  • - la figure 9 est une vue analogue à la figure 1, illustrant une quatrième forme de réalisation de semelage de l'invention, dans laquelle des inserts en matériau amortisseur particulier sont incorporés ;
  • - la figure 10 est une coupe transversale prise suivant la ligne X-X de la figure 8, représentant plusieurs modes d'exécu­tion des inserts ;
  • - la figure 11 est une vue analogue à la figure 10 montrant dans une quatrième forme de réalisation du semelage, un autre mode d'exécution d'un insert amortisseur.
On this drawing :
  • - Figure 1 is a bottom view illustrating a first embodiment of the sole assembly according to the invention;
  • - Figures 2 and 3 are side elevations taken along lines II-II and III-III respectively of Figure 1;
  • - Figure 4 is a partial section taken along the line IV-IV of Figure 1;
  • - Figure 5 is a view similar to Figure 1 but simplified, to show in a second embodiment of the sole assembly the parts constituting the underlying wear layer;
  • - Figure 6 is a section taken on a larger scale along the line VI-VI of Figure 5 across the part to high adhesion;
  • - Figure 7 is a partial longitudinal section taken along the line VII-VII of Figure 1;
  • - Figure 8 is a view similar to Figure 1, illustrating a third embodiment of the sole assembly of the invention, in which inserts of particular damping material are incorporated;
  • - Figure 9 is a view similar to Figure 1, illustrating a fourth embodiment of the sole assembly of the invention, in which inserts of particular damping material are incorporated;
  • - Figure 10 is a cross section taken along line XX of Figure 8, showing several embodiments of the inserts;
  • - Figure 11 is a view similar to Figure 10 showing in a fourth embodiment of the sole assembly, another embodiment of a damping insert.

Ainsi que cela ressort du dessin, le semelage comporte une couche sous-jacente d'usure 1 et une couche intercalaire légère en mousse 2.As can be seen from the drawing, the sole assembly has an underlying wear layer 1 and a light foam interlayer 2.

La couche 1 comporte sensiblement en affleurement une denture marginale 3 s'étendant à l'extérieur du pied et une denture marginale 4 s'étendant à l'intérieur. La denture extérieure 3 présente à l'avant une partie d'attaque constituée par des flancs abrupts 5 permettant de se recevoir sans glisser et une partie de fuite orientée vers l'arrière et constituée par des flancs arrondis 6 raccordés aux flancs abrupts avant 5 par des crêtes 7. La denture intérieure 4 est analogue, mais ses flancs abrupts 8 sont situés à l'arrière pour impulser sans glissement le démarrage qui peut suivre, ces flancs abrupts 8 étant raccordés à des flancs avant arrondis 9 par des crêtes 10.Layer 1 has substantially outcropping a marginal toothing 3 extending outside the foot and a marginal toothing 4 extending inside. The external toothing 3 has at the front an attack part constituted by steep flanks 5 making it possible to receive without slipping and a trailing part directed towards the rear and constituted by rounded flanks 6 connected to the steep flanks before by ridges 7. The internal toothing 4 is similar, but its steep flanks 8 are located at the rear to stimulate the start-up which can follow without slippage, these steep flanks 8 being connected to rounded front flanks 9 by ridges 10.

Alors que la denture extérieure 5 à 7 s'étend sur prati­quement toute la longueur du semelage, par contre la denture intérieure 8 à 10 peut couvrir l'avant-pied et le talon en étant interrompu au niveau de la cambrure.While the external toothing 5 to 7 extends over practically the entire length of the sole assembly, on the other hand the internal toothing 8 to 10 can cover the forefoot and the heel, being interrupted at the camber.

La couche sous-jacente d'usure 1 comporte également un crantage transversal 11 au bout et un crantage transversal 12 à l'arrière légèrement relevé du talon.The underlying wear layer 1 also has a transverse notch 11 at the end and a transverse notch 12 at the back slightly raised from the heel.

Suivant les première, deuxième et troisième formes de réalisation illustrées pour les figures 1, 5 et 8, la couche sous-jacente d'usure 1 délimite des ouvertures 13 et 14 situées à l'endroit de l'avant-pied et respectivement du talon, afin que la mousse de la couche intercalaire 2 les traverse en formant des patins 15 et 16. Ces patins présentent sur leur dessous apparent des stries incurvées aplatissables 17 et 18, stries qui sont dissymétriques et inversées d'un patin à l'autre (figure 4).According to the first, second and third embodiments illustrated for FIGS. 1, 5 and 8, the underlying wear layer 1 delimits openings 13 and 14 situated at the location of the forefoot and of the heel respectively. , so that the foam of the intermediate layer 2 passes through them forming pads 15 and 16. These pads have on their visible underside flattened curved ridges 17 and 18, ridges which are asymmetrical and reversed from one pad to another ( figure 4).

Comme le montre la figure 6, il peut être avantageux, en raison des sollicitations alternées des dentures extérieure 5 à 7 et intérieure 8 à 10 qui tendent à aplatir le semelage tantôt davantage côté extérieur, tantôt davantage côté intérieur, d'incliner ces dentures pour que l'enveloppe de leurs crêtes 7 et 10 forme un dièdre à faces incurvées convergeant vers le haut.As shown in FIG. 6, it may be advantageous, due to the alternating stresses of the external teeth 5 to 7 and internal teeth 8 to 10 which tend to flatten the sole assembly sometimes more on the outside side, sometimes more on the inside side, to tilt these teeth to that the envelope of their ridges 7 and 10 forms a dihedral with curved faces converging upwards.

Avantageusement et ainsi que cela ressort de la figure 7, chaque dent des dentures 3 et 4 est creuse et sa cavité interne 19 est remplie de la mousse constituant la couche intercalaire 2, ce qui permet d'alléger le semelage.Advantageously and as shown in FIG. 7, each tooth of the teeth 3 and 4 is hollow and its internal cavity 19 is filled with the foam constituting the intermediate layer 2, which makes it possible to lighten the sole assembly.

Ainsi que cela est exposé dans ce qui précède, la couche d'usure 1 est constituée par deux matériaux compatibles entre eux, l'un étant sélectionné pour privilégier son adhérence, tandis que l'autre est sélectionné pour privilégier sa résistance à l'abrasion. La couche intercalaire 2 est en un matériau sélectionné pour son pouvoir d'amortissement élevé, sa légèreté et son aptitude à assurer la liaison entre la couche d'usure 1 et la tige de la chaussure non représentée.As explained in the foregoing, the wear layer 1 consists of two mutually compatible materials, one being selected to favor its adhesion, while the other is selected to favor its resistance to abrasion . The intermediate layer 2 is made of a material selected for its high damping power, its lightness and its ability to provide the connection between the wear layer 1 and the upper of the shoe, not shown.

Dans l'exemple choisi, le matériau adhérent de la couche d'usure 1 est un caoutchouc dit caoutchouc Ad dont la dureté Shore est de l'ordre de 50 A, tandis que le matériau résistant à l'abra­sion est un caoutchouc dit caoutchouc Ab dont la dureté Shore est plus élevée et de l'ordre de 60 A. Dans ce même exemple, le matériau de la couche intercalaire 2 est une mousse de poly­uréthanne.In the example chosen, the adhesive material of the wear layer 1 is a rubber called rubber Ad whose Shore hardness is of the order of 50 A, while the abrasion-resistant material is a rubber called rubber Ab whose Shore hardness is higher and of the order of 60 A. In this same example, the material of the interlayer 2 is a polyurethane foam.

Suivant la première forme de réalisation illustrée par les figures 1 et 7, chacune des dents de la denture extérieure 3 comporte une partie d'attaque 20 en caoutchouc Ad ou autre matériau adhérent faisant corps avec une partie de fuite 21 en caoutchouc Ab ou autre matériau résistant à l'abrasion. S'agissant d'une dent extérieure, la partie d'attaque 20 est située à l'avant et la partie de fuite 21 à l'arrière.According to the first embodiment illustrated by Figures 1 and 7, each of the teeth of the outer teeth 3 comprises a leading portion 20 of rubber Ad or other adherent material integral with a trailing portion 21 of rubber Ab or other abrasion resistant material. In the case of an outer tooth, the leading part 20 is located at the front and the trailing part 21 at the rear.

La fabrication d'une telle couche d'usure 1 selon ladite première forme de réalisation est délicate, étant donné que les vulcanisations successives des caoutchoucs Ad et Ab doivent s'accompagner dans le deuxième moule d'une solidarisation parfaite aux interfaces 22 des parties 20 et 21.The manufacture of such a wear layer 1 according to said first embodiment is delicate, given that the successive vulcanizations of the rubbers Ad and Ab must be accompanied in the second mold by perfect attachment to the interfaces 22 of the parts 20 and 21.

S'agissant maintenant de la denture intérieure 4, les dents sont identiques, dans cette première forme de réalisation, à celles de la denture extérieure 3, à la différence près que les parties d'attaque 20 sont situées à l'arrière et les parties de fuite 21 à l'avant.As regards the internal toothing 4, the teeth are identical, in this first embodiment, to those of the external toothing 3, except that the leading parts 20 are located at the rear and the parts leakage 21 at the front.

Ainsi, la réception et la propulsion du pied chaussé peuvent-elles être assurées dans de très bonnes conditions.Thus, the reception and propulsion of the shod foot can be ensured in very good conditions.

Suivant la deuxième forme de réalisation illustrée par la figure 5, la couche d'usure 1 est constituée par deux parties 23 et 24 en matériau adhérent tel que du caoutchouc Ad et par deux patins 25 et 26 en matériau résistant à l'abrasion tel que du caoutchouc Ab. Les patins adhérents 23 et 24 correspondent à la denture marginale extérieure 3 et à la partie métatarsienne de la denture marginale intérieure 4 ; ils délimitent entre eux l'ouverture 13, en coopération d'ailleurs avec les patins 25 et 26. Ces patins anti-abrasion 25 et 26 correspondent aux parties restantes extrêmes de la denture intérieure 4, au bout cranté 11, à l'arrière cranté 12 et à la partie 27 qui sépare les ouvertures 13 et 14.According to the second embodiment illustrated in FIG. 5, the wear layer 1 is constituted by two parts 23 and 24 made of adhesive material such as rubber Ad and by two pads 25 and 26 made of abrasion resistant material such as rubber Ab. The adherent pads 23 and 24 correspond to the outer marginal toothing 3 and to the metatarsal part of the inner marginal toothing 4; they delimit between them the opening 13, moreover in cooperation with the pads 25 and 26. These abrasion pads 25 and 26 correspond to the extreme remaining parts of the internal toothing 4, with the notched end 11, at the notched rear 12 and to part 27 which separates the openings 13 and 14.

La fabrication de la couche d'usure 1 suivant ladite deuxième forme de réalisation par vulcanisations successives des deux paires de patins 23, 24 et 25, 26 est plus facile et tout aussi fiable.The manufacture of the wear layer 1 according to said second embodiment by successive vulcanizations of the two pairs of pads 23, 24 and 25, 26 is easier and just as reliable.

Suivant la troisième forme de réalisation illustrée par la figure 8, la couche d'usure 1 est constituée par deux parties 28 et 29 respectivement en matériau adhérent tel que du caoutchouc Ad et en matériau résistant à l'abrasion tel que du caoutchouc Ab. La partie dite adhérente 28 s'étend sur toute la largeur de la denture extérieure 3 de son bord périphérique jusqu'aux ouvertures 13 et 14. La partie dite antiabrasion 29 s'étend en bordure de la denture intérieure 4 et se prolonge le long du bout et du talon du semelage. Dans ces conditions, la denture intérieure 4 est en matériau antiabrasion Ab en bordure et en matériau adhérent jusqu'aux ouvertures 13 et 14. D'ailleurs, ce matériau Ab constitue également le bout 11, le talon 12 et la partie 27 de la couche 1 autour desdites ouvertures.According to the third embodiment illustrated in FIG. 8, the wear layer 1 is constituted by two parts 28 and 29 respectively of adhesive material such as rubber Ad and of abrasion-resistant material such as rubber Ab. The so-called adherent part 28 extends over the entire width of the external toothing 3 from its peripheral edge to the openings 13 and 14. The so-called abrasion-resistant part 29 s extends along the inner toothing 4 and extends along the toe and heel of the sole assembly. Under these conditions, the internal toothing 4 is made of abrasion-resistant material Ab at the edge and of material adhering to the openings 13 and 14. Moreover, this material Ab also constitutes the toe 11, the heel 12 and the part 27 of the layer. 1 around said openings.

La fabrication de la couche d'usure 1 suivant ladite troisième forme de réalisation par vulcanisations successives des parties 28 et 29 est encore plus facile et fiable.The manufacture of the wear layer 1 according to said third embodiment by successive vulcanizations of the parts 28 and 29 is even easier and reliable.

Suivant une variante (figure 8 en trait mixte), la bordure 29 peut être prolongée en 29′ à la périphérie de la denture extérieure 3.According to a variant (FIG. 8 in phantom), the border 29 can be extended at 29 ′ at the periphery of the external toothing 3.

Dans ces deuxième et troisième formes de réalisation également, la réception et la propulsion du pied chaussé sont assurées dans d'excellentes conditions.In these second and third embodiments also, the reception and the propulsion of the shod foot are ensured in excellent conditions.

La couche intercalaire en mousse 2 permet d'amortir les chocs et les vibrations de façon satisfaisante.The foam interlayer 2 makes it possible to absorb shock and vibration satisfactorily.

Cependant, le résultat peut être amélioré en incorporant au semelage un ou plusieurs inserts 30 comme cela est illustré sur les figures 8 à 10 pour une troisième forme de réalisation.However, the result can be improved by incorporating one or more inserts 30 into the sole assembly as illustrated in FIGS. 8 to 10 for a third embodiment.

Le matériau constituant tout ou partie d'un insert 30 est sélectionné pour son aptitude à amortir les vibrations suivant une plage particulière de fréquences.The material constituting all or part of an insert 30 is selected for its ability to absorb vibrations according to a particular range of frequencies.

Ce matériau peut être un polymère dérivé de polyisoprène tel que celui commercialisé par la société VIBRACHOC sous la dénomination "Viptène".This material can be a polymer derived from polyisoprene such as that sold by the company VIBRACHOC under the name "Viptene".

Comme le montrent les figures 9 à 11, des inserts 30a peuvent être incorporés dans les crêtes 7, 10 de certaines au moins des dents des dentures 3, 4. Des inserts 30b peuvent aussi être incorporés dans les patins en mousse 15, 16 pour affleurer leur surface apparente ou être noyés dans la masse. Des inserts 30c noyés dans la mousse de la semelle intercalaire 2 peuvent également être disposés au contact d'un voile mince 31 (figure 11) de la couche d'usure 1 reliant les dentures 3, 4 en ménageant ou non des ouvertures 13, 14.As shown in FIGS. 9 to 11, inserts 30a can be incorporated in the ridges 7, 10 of at least some of the teeth of the teeth 3, 4. Inserts 30b can also be incorporated in the foam pads 15, 16 to be flush their apparent surface or be drowned in the mass. Inserts 30c embedded in the foam of the midsole 2 can also be placed in contact with a thin web 31 (FIG. 11) of the wear layer 1 connecting the teeth 3, 4 with or without opening openings 13, 14.

Quelle que soit la situation des inserts précités 30a à 30c, ceux-ci peuvent être monolithiques et constitués par le même matériau comme c'est le cas pour l'insert de la figure 10 désigné par la référence 30.1. Ils peuvent aussi être formés par plusieurs couches élémentaires concentriques comme cela est le cas pour l'insert désigné sur la figure 10 par la référence 30.2. Ils peuvent encore être constitués par plusieurs couches élémentaires superposées comme cela est le cas pour l'insert désigné sur la figure 10 par la référence 30.3. Ils peuvent également être consti­tués par plusieurs cuvettes gigognes élémentaires comme cela est le cas pour l'insert désigné sur la figure 11 par la référence 30.4.Whatever the situation of the aforementioned inserts 30a to 30c, these can be monolithic and made of the same material as is the case for the insert of FIG. 10 designated by the reference 30.1. They can also be formed by several concentric elementary layers as is the case for the insert designated in FIG. 10 by the reference 30.2. They can also be constituted by several superimposed elementary layers as is the case for the insert designated in FIG. 10 by the reference 30.3. They can also consist of several elementary nesting bowls as is the case for the insert designated in FIG. 11 by the reference 30.4.

Ces différents éléments amortisseurs conjugés 30.2 à 30.4 sont évidemment sensibles à des plages de fréquences différentes pouvant ou non se recouvrir à leurs frontières.These different shock absorbing elements 30.2 to 30.4 are obviously sensitive to different frequency ranges which may or may not overlap at their borders.

Claims (16)

1. Semelage pour chaussure de sport améliorant la propul­sion et la réception, caractérisé en ce qu'il comporte sensiblement en affleurement deux dentures marginales (3 et 4) dont les dents sont dissymétriques et orientées à l'opposé les unes des autres suivant qu'elles sont situées le long du bord extérieur ou du bord intérieur du semelage, chaque dent présentant une partie d'attaque (20) et une partie de fuite (21) et les dents de la denture marginale extérieure (3) étant orientées surface d'attaque vers l'avant, tandis que celles de la denture intérieure (4) sont orientées surface d'attaque vers l'arrière.1. Sole for a sports shoe improving propulsion and reception, characterized in that it substantially comprises two marginal teeth (3 and 4) whose teeth are asymmetrical and oriented opposite one another according to whether they are located along the outer edge or the inner edge of the sole assembly, each tooth having a leading portion (20) and a trailing portion (21) and the teeth of the outer marginal toothing (3) being oriented surface of attack forward, while those of the inner teeth (4) are oriented attack surface rearward. 2. Semelage selon la revendication 1, caractérisé en ce que chaque dent comporte une partie d'attaque (20) formant le flanc abrupt (5, 8) et une partie de fuite (21) formant une crête (17, 10) et un flanc arrondi (6, 9), la partie d'attaque étant en un matériau mou relativement adhérent et la partie de fuite étant en un matériau plus dur résistant à l'abrasion.2. sole assembly according to claim 1, characterized in that each tooth has a leading part (20) forming the steep side (5, 8) and a trailing part (21) forming a crest (17, 10) and a rounded side (6, 9), the leading part being made of a relatively adherent soft material and the trailing part being made of a harder material resistant to abrasion. 3. Semelage selon la revendication 1, caractérisé en ce que la denture marginale extérieure (23) et la partie métatar­sienne (24) de la denture marginale intérieure (4) est en un maté­riau mou relativement adhérent, tandis que les parties restantes extrêmes (25, 26) de la denture marginale intérieure (4), le bout (11), la cambrure et l'arrière du talon (12), ainsi que la partie (27) qui relie lesdites dentures entre elles, sont en un matériau moins adhérent, mais dont la résistance à l'abrasion est élevée.3. sole assembly according to claim 1, characterized in that the outer marginal toothing (23) and the metatarsal part (24) of the inner marginal toothing (4) is made of a relatively adherent soft material, while the remaining extreme parts (25 , 26) of the inner marginal toothing (4), the tip (11), the camber and the back of the heel (12), as well as the part (27) which connects said toothing with each other, are made of a less adherent material , but with high abrasion resistance. 4. Semelage selon la revendication 1, caractérisé en ce qu'une bordure (29) en matériau résistant à l'abrasion s'étend à la périphérie du semelage jusqu'au moins les extrémités de la denture marginale extérieure (3), tandis qu'au moins la partie restante de la denture marginale intérieure (4) s'étendant vers l'autre denture est en matériau adhérent.4. sole assembly according to claim 1, characterized in that an edge (29) of abrasion resistant material extends at the periphery of the sole assembly to at least the ends of the outer marginal toothing (3), while 'at least the remaining part of the inner marginal toothing (4) extending towards the other toothing is of adhesive material. 5. Semelage selon l'une quelconque des revendications 2 à 4, caractérisé en ce que le matériau le plus adhérent est un caoutchouc ayant une faible dureté Shore, de l'ordre de 50 A, tandis que le matériau résistant le plus à l'abrasion est un caoutchouc dont la dureté Shore est plus élevée, de l'ordre de 60 A.5. Sole according to any one of claims 2 to 4, characterized in that the most adherent material is a rubber having a low Shore hardness, of the order of 50 A, while the material most resistant to abrasion is a rubber with a higher Shore hardness, around 60 A. 6. Semelage selon la revendication 2 à 4, caractérisé en ce qu'il comporte une couche intercalaire (2) en mousse légère fai­sant corps avec une couche sous-jacente d'usure (1) comportant notamment les dentures marginales (3, 4), cette couche intercalaire traversant au moins une ouverture (13, 14) ménagée dans la couche d'usure (1) entre lesdites dentures pour former au moins un patin (15, 16).6. Sole according to claim 2 to 4, characterized in that it comprises an intermediate layer (2) of light foam integral with an underlying wear layer (1) comprising in particular the marginal teeth (3, 4) , this intermediate layer passing through at least one opening (13, 14) formed in the wear layer (1) between said teeth to form at least one shoe (15, 16). 7. Semelage selon la revendication 6, caractérisé en ce qu'elle comporte deux patins (15, 16) en mousse situés à l'endroit du talon et au moins de l'avant-pied, ces patins étant dentelés (en 17, 18) de façon dissymétrique.7. Sole according to claim 6, characterized in that it comprises two pads (15, 16) in foam located at the location of the heel and at least of the forefoot, these pads being serrated (in 17, 18 ) asymmetrically. 8. Semelage selon la revendication 6 ou 7, caractérisé en ce que les dents des dentures marginales (3, 4) sont creuses (en 19) et remplies de la mousse de la couche intercalaire (2).8. Sole according to claim 6 or 7, characterized in that the teeth of the marginal teeth (3, 4) are hollow (in 19) and filled with the foam of the intermediate layer (2). 9. Semelage selon la revendication 2 à 4, caractérisé en ce qu'il fait corps avec au moins un insert (30) constitué par un matériau amortisseur spécifique susceptible d'intervenir pour une plage particulière de fréquences.9. sole assembly according to claim 2 to 4, characterized in that it is integral with at least one insert (30) constituted by a specific damping material capable of intervening for a particular range of frequencies. 10. Semelage selon la revendication 9, caractérisé en ce que le ou chaque insert est constitué par un polymère dérivé de polyisoprène.10. sole assembly according to claim 9, characterized in that the or each insert consists of a polymer derived from polyisoprene. 11. Semelage selon la revendication 9 ou 10, caractérisé en ce que le ou chacun de certains au moins des inserts est cons­titué par plusieurs couches superposées (30.3) de matériaux amortisseurs réagissant à des fréquences différentes convenablement sélectionnées.11. sole assembly according to claim 9 or 10, characterized in that the or each of at least some of the inserts consists of several superimposed layers (30.3) of damping materials reacting at different frequencies suitably selected. 12. Semelage selon la revendication 9 ou 10, caractérisé en ce que le ou chacun de certains au moins des inserts est cons­titué par plusieurs éléments concentriques (30.2, 30.4) emboîtés les uns dans les autres, ces éléments étant en des matériaux amor­tisseurs réagissant à des fréquences différentes convenablement sélectionnées.12. sole assembly according to claim 9 or 10, characterized in that the or each of at least some of the inserts is constituted by several concentric elements (30.2, 30.4) nested one inside the other, these elements being in damping materials reacting to different frequencies suitably selected. 13. Semelage selon l'une quelconque des revendications 2 et 9 à 12, caractérisé en ce que certaines au moins des dents mar­ ginales présentent sur leur partie de fuite un pan coupé dans lequel est incorporé le ou chaque insert (30a).13. Sole according to any one of claims 2 and 9 to 12, characterized in that at least some of the teeth mar ginal present on their trailing part a cutaway in which is incorporated the or each insert (30a). 14. Semelage selon l'une quelconque des revendications 2, 6, 7 et 9 à 12, caractérisé en ce que le ou les patins en mousse comportent un ou plusieurs inserts (30b) situés notamment à l'endroit du talon.14. Sole according to any one of claims 2, 6, 7 and 9 to 12, characterized in that the foam pad or pads include one or more inserts (30b) located in particular at the heel. 15. Semelage selon l'une quelconque des revendications 2, 6 et 9 à 12, caractérisé en ce que la couche d'usure forme un voile mince (31) sur la couche intercalaire en mousse (2) entre les den­tures marginales (3, 4), un ou plusieurs inserts précités étant insérés dans cette couche intercalaire et disposés au contact du voile mince, notamment à l'endroit du talon.15. Sole according to any one of claims 2, 6 and 9 to 12, characterized in that the wear layer forms a thin veil (31) on the foam interlayer (2) between the marginal teeth (3, 4), one or more aforementioned inserts being inserted in this intermediate layer and arranged in contact with the thin veil, in particular at the location of the heel. 16. Semelage selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les crêtes des dentures extérieure et intérieure forment un dièdre convergeant vers le haut (figure 6).16. Sole according to any one of claims 1 to 4, characterized in that the crests of the outer and inner teeth form a dihedron converging upward (Figure 6).
EP19900401429 1989-05-30 1990-05-30 Sport shoesole with better propulsion and touchdown Expired - Lifetime EP0401108B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8907123A FR2647650B1 (en) 1989-05-30 1989-05-30 SOLE FOR A SPORTS SHOE IMPROVING PROPULSION AND RECEPTION
FR8907123 1989-05-30

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EP0401108A1 true EP0401108A1 (en) 1990-12-05
EP0401108B1 EP0401108B1 (en) 1993-12-29

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EP19900401429 Expired - Lifetime EP0401108B1 (en) 1989-05-30 1990-05-30 Sport shoesole with better propulsion and touchdown

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DE (1) DE69005531T2 (en)
ES (1) ES2049939T3 (en)
FR (1) FR2647650B1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0410163A2 (en) * 1989-07-03 1991-01-30 LOWA-SCHUHFABRIK LORENZ WAGNER GmbH &amp; Co. KG Sole with lamellas
FR2770380A1 (en) * 1997-11-03 1999-05-07 Jean Michel Heckel Non-slip sole for safety boot
US7621058B2 (en) 2001-04-27 2009-11-24 Exten.S Sole with extensible structure
US20180160773A1 (en) * 2016-12-08 2018-06-14 Cels Enterprises, Inc. Shoe outer sole with surface portions for flocking
CN109349723A (en) * 2018-10-26 2019-02-19 鲁晨 The production method of lotus leaf lotus pond embroidered shoes
CN110074511A (en) * 2019-04-26 2019-08-02 温州职业技术学院 One kind having anti abrasive footwear product and its manufacturing method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR78984E (en) * 1960-05-13 1962-10-05 Caty & Cie M Improvements to the underside of shoes
FR1434840A (en) * 1964-06-23 1966-04-08 Semperit Schuhbedarf Ges M B H Contoured rubber sole for shoes
DE2825888A1 (en) * 1977-11-07 1979-06-21 Asics Corp Shoe sole in two differentiated parts - with high and low wear parts sepd. by ridge bonded to each
FR2489104A1 (en) * 1980-08-27 1982-03-05 Dassler Puma Sportschuh SPORT SHOES, IN PARTICULAR TENNIS SHOES
FR2569956A1 (en) * 1984-09-10 1986-03-14 Nocera Vincenzo Shoe with non-slip sole and heel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR78984E (en) * 1960-05-13 1962-10-05 Caty & Cie M Improvements to the underside of shoes
FR1434840A (en) * 1964-06-23 1966-04-08 Semperit Schuhbedarf Ges M B H Contoured rubber sole for shoes
DE2825888A1 (en) * 1977-11-07 1979-06-21 Asics Corp Shoe sole in two differentiated parts - with high and low wear parts sepd. by ridge bonded to each
FR2489104A1 (en) * 1980-08-27 1982-03-05 Dassler Puma Sportschuh SPORT SHOES, IN PARTICULAR TENNIS SHOES
FR2569956A1 (en) * 1984-09-10 1986-03-14 Nocera Vincenzo Shoe with non-slip sole and heel

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0410163A2 (en) * 1989-07-03 1991-01-30 LOWA-SCHUHFABRIK LORENZ WAGNER GmbH &amp; Co. KG Sole with lamellas
EP0410163A3 (en) * 1989-07-03 1992-03-18 Lowa-Schuhfabrik Lorenz Wagner Gmbh & Co. Kg Sole with lamellas
FR2770380A1 (en) * 1997-11-03 1999-05-07 Jean Michel Heckel Non-slip sole for safety boot
EP0930028A1 (en) * 1997-11-03 1999-07-21 Jean-Michel Heckel Sole for safety footwear and shoe comprising such a sole
US7621058B2 (en) 2001-04-27 2009-11-24 Exten.S Sole with extensible structure
US7966751B2 (en) 2001-04-27 2011-06-28 Exten.S Sole with extensible structure
US20180160773A1 (en) * 2016-12-08 2018-06-14 Cels Enterprises, Inc. Shoe outer sole with surface portions for flocking
CN109349723A (en) * 2018-10-26 2019-02-19 鲁晨 The production method of lotus leaf lotus pond embroidered shoes
CN110074511A (en) * 2019-04-26 2019-08-02 温州职业技术学院 One kind having anti abrasive footwear product and its manufacturing method

Also Published As

Publication number Publication date
FR2647650A1 (en) 1990-12-07
ES2049939T3 (en) 1994-05-01
DE69005531D1 (en) 1994-02-10
FR2647650B1 (en) 1992-04-24
EP0401108B1 (en) 1993-12-29
DE69005531T2 (en) 1994-05-05

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