EP0395538A1 - Sole for a sports shoe - Google Patents

Sole for a sports shoe Download PDF

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Publication number
EP0395538A1
EP0395538A1 EP90420160A EP90420160A EP0395538A1 EP 0395538 A1 EP0395538 A1 EP 0395538A1 EP 90420160 A EP90420160 A EP 90420160A EP 90420160 A EP90420160 A EP 90420160A EP 0395538 A1 EP0395538 A1 EP 0395538A1
Authority
EP
European Patent Office
Prior art keywords
sole
notches
openings
relatively rigid
filling elements
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
EP90420160A
Other languages
German (de)
French (fr)
Other versions
EP0395538B1 (en
Inventor
Pierre Dufour
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.)
TaylorMade Golf Co Inc
Original Assignee
Salomon SAS
TaylorMade Golf Co Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Salomon SAS, TaylorMade Golf Co Inc filed Critical Salomon SAS
Publication of EP0395538A1 publication Critical patent/EP0395538A1/en
Application granted granted Critical
Publication of EP0395538B1 publication Critical patent/EP0395538B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • A43B13/24—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer by use of insertions
    • 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
    • A43B13/18—Resilient soles
    • A43B13/187—Resiliency achieved by the features of the material, e.g. foam, non liquid materials
    • A43B13/188—Differential cushioning regions

Definitions

  • the present invention relates to a walking sole for a sports shoe, in particular a golf shoe, as well as a shoe provided with such a sole.
  • Shoe soles are already known, the edges of which are provided with transverse notches with respect to the longitudinal axis of the shoe in order to facilitate relative torsion of the front part of the sole with respect to its rear part.
  • patent FR-A-2,553,636 describes a shoe whose midsole has, along the front part of its outer edge, notches in which are housed elements made of a material of higher hardness than that of the material constituting the layer of the midsole. This latter provision essentially aims at improving the flexibility and damping characteristics in the direction of the course of the step during walking, running or jumping.
  • patent application FR-A-2 608 387 by the applicant describes a walking sole for a sports shoe which has notches provided in the front part of at least one of the lateral edges of the sole extending along the anterior zone thereof supported by the forefoot of the shoe wearer, these notches, which are filled with a material having a higher degree of elasticity than that of the material constituting the sole said, delimiting between them flexible tongues transversely.
  • the present invention relates to improvements made to such a walking sole so as to give it both great flexibility in the longitudinal direction and a certain transverse rigidity beyond the notches, towards the central part of the sole.
  • this walking sole for a sports shoe in particular a golf shoe, comprising a main part made of relatively rigid molded plastic material, having, in the front part of one less of its lateral edges, which extends along the anterior zone of the sole on which the forefoot of the shoe wearer rests, a succession of substantially transverse notches, spaced from each other, opening into the edge of the sole and extending towards the central part thereof, these notches being filled with a material which has a higher degree of elasticity than that of the material constituting the main part of the sole and which forms individual elastic filling elements housed in the respective notches , these notches delimiting between them at least one flexible tongue transversely around a line located near the internal ends of the notches, is ca characterized in that it has, associated with at least one of its notches, at least one elongated opening in a substantially transverse direction, aligned with this notch provided in the lateral edge, at a distance from the latter, and an element made of elastic material filling the elongated opening
  • each of the flexible tongues carries at least one crampon intended to sink into the ground, this crampon being permanently fixed to the sole, during the molding thereof, or being fixed, after molding of the sole, in a fastening member provided for molding on the flexible tongue.
  • the invention also relates to a shoe for sport, in particular a golf shoe, provided with a walking sole as specified above.
  • the tread according to the invention which is designated as a whole by the reference 1 in Figure 1, comprises a front part which is adapted so as to have a certain longitudinal flexibility at the place where the forefoot is supported of the shoe wearer, while retaining a certain transverse rigidity.
  • the outsole 1 has, in its front part and at least along its outer side edge 1a, a combination of two materials having different degrees of elasticity.
  • the walking sole 1 comprises two parts A and B made of plastic materials having different degrees of elasticity.
  • the walking sole 1 is molded for the most part A from a relatively rigid plastic material and it has, along the front part of its outer lateral edge 1 a , an overmolded part B made from an essentially elastic plastic material or having a degree of elasticity significantly higher than that of the plastic constituting the main part A of the sole.
  • the relatively elastic plastics material of the overmolded ply B fills a succession of notches 2 which are spaced from one another and which are formed during the molding of the main part A of the sole. These notches 2 open in the outer side edge 1a of the part A and they extend in substantially transverse directions to the median longitudinal plane of the sole.
  • the notches 2 may be delimited by parallel faces or converging towards the longitudinal median plane, to thereby have a substantially trapezoidal shape with large located external base in the plane of the outer side edge 1a, and small internal base 2a , constituting the inner end of the slot 2.
  • in the grooves 2 are thus formed of individual elastic filler elements 3 which can be connected to each other along the outer side edge 1a of the tread 1, as represented in FIG. 1, by a border 4 produced by overmolding at the same time as the individual elastic filling elements 3.
  • the overmolded part B made of elastic material is made up, in the non-limiting embodiment shown in FIG. 1 on the one hand by the solid border 4, which in fact forms part of the outer side edge 1a of the walking sole 1, and on the other hand by the individual elastic filling elements 3 which form kinds of teeth closely engaged in the notches 2 of the part A of substantially rigid plastic.
  • the notches 2 of the part A of the walking sole delimit between them tongues 5 forming part of the main molded part, of relatively rigid material A, and which are flexible transversely around a flexion line X passing near the ends internal 2a notches 2.
  • the main part in matters relatively rigid A of the sole has elongated openings 6 which extend in the extension of all the notches 2 or some of them.
  • each notch 2 is associated an opening 6 which is distant from the notch 2 by being separated by a bridge 7 of relatively rigid material A constituting the main part of the sole.
  • the openings 6 can have any shape and in particular a trapezoidal shape substantially extending the trapezoidal shape of the notches 2.
  • each bridge 7 of relatively rigid material A extends between the small base 2a constituting the internal end of a notch 2 and the large base 6a of a trapezoidal opening 6 whose small base 6b is turned towards the inner lateral edge 1b of the sole 1, the converging sides of the opening 6 being substantially aligned with the converging sides of the notch 2.
  • Each opening 6 is filled with elastic plastic material overmolded so as to contain an elastic filling element 8, this elastic material possibly being the same as material B or a different material.
  • the external filling elements 3 and internal 8 are formed of the same elastic material B and they are connected to each other by a part 9 of overmolded plastic material B forming an "arch "over the bridge 7 of material A.
  • the entire sole formed by the plastics A and B can be covered with a layer of filling material C, as shown in FIG. 2, this material C extending between the outer side edge 1a in a relatively elastic material B, and the inner side edge 1b, relatively rigid material A, from the sole.
  • Material C has elasticity characteristics different from those of plastics A and B and not having a decisive influence on the bending behavior of the sole, which remains essentially determined by the nature of plastics A and B.
  • the layer of elastic plastic material B has a greater thickness than in the case of the embodiment shown in FIG. 2 and it extends over the entire width and the thickness of 1 a complete sole 1, between its outer lateral edge 1a and the inner lateral edge 1b, of rigid material A, playing the role of the layer of filling material C.
  • the layer of elastic plastic material B extends only partially in the transverse direction, practically above the notches 2, bridges 7 and openings 6. From the internal ends 6b of the openings 6 the thickness of the complete sole consists entirely of the relatively rigid plastic A.
  • Figures 5 and 6 show an alternative embodiment of the sole which comprises a front stair nose 10 and a flex groove 11 between the external notches 2 and the internal openings 6.
  • This flex groove 11 which is substantially parallel to the edge lateral lateral 1 a , is formed in the lower face of the relatively rigid plastic part A and in particular in the bridges 7 and it is open downwards, as is can see in Figure 6.
  • the flexure groove 11 is, on the other hand, formed in the upper face of the bridges 7 and it then opens upwards.
  • FIGS. 4,5 and 6 also show that the sole 1 carries studs 12 which are fixed to the flexible tongues 5 and also along the inner edge 1b of the front part of the sole 1.
  • FIG. 8 illustrate alternative embodiments in which junction contours are provided on the periphery of the notches 2 and openings 6.
  • the junction contours 13 and 14, respectively surrounding the filling elements 3.8 housed in the notches 2 and the openings 6, are hollowed out in the relatively rigid plastic A constituting the main part of the sole.
  • these contours 13,14 are formed in the hollow around the periphery of the filling elements 3,8 housed respectively in the notches 2,6.
  • FIG. 11 represents an alternative embodiment of the invention in which the filling elements 3, formed in the lateral notches 2, are not connected to each other by a border 4, as in the case of the shape of execution shown in Figure 1.
  • the elastic filling elements 3, housed in the respective lateral notches 2, are independent of each other.
  • the filling elements 8 of elastic material which are housed in the openings 6, can be connected to the filling elements 3 housed in the notches 2, as has been described in the previous examples. According to a variant, these filling elements 8 can be completely separated from the filling elements 3, as shown in FIG. 12, and they can then be made of a material different from that constituting the filling elements 3.
  • the relatively elastic plastic B which forms the filling elements 3 and 8 at least partially covers the edges of the notches 2 and the openings 6.
  • the filling elements 3.8 have upper parts, situated respectively above the notches 2 and the openings 6, of greater width than their lower parts housed closely in the notches 2 and the openings 6, forming lateral projecting parts 3a, as it is shown in FIG. 14 in the case of a filling element 3 housed in a notch 2.

Abstract

The present invention relates to an outsole for a sports shoe, particularly a golf shoe, comprising a main part in relatively rigid moulded plastic material, having, in the front part of at least one of its lateral edges (1a), which extends along the front zone of the sole on which the metatarsus of the wearer of the shoe bears, a succession of notches (2). This shoe is characterised in that it has, associated with at least one of its notches (2), at least one opening (6) elongated in a substantially transverse direction, in line with this notch (2) provided in the lateral edge (1a), at a distance from the latter, and an element (8) in elastic material filling the elongated opening (6). <IMAGE>

Description

La présente invention concerne une semelle de marche pour une chaussure de sport, notamment une chaussure de golf, ainsi qu'une chaussure pourvue d'une telle semelle.The present invention relates to a walking sole for a sports shoe, in particular a golf shoe, as well as a shoe provided with such a sole.

On connaît déjà des semelles de chaussures dont les bords sont pourvus d'entailles transversales par rapport à l'axe longitudinal de la chaussure afin de faciliter une torsion relative de la partie antérieure de la semelle par rapport à sa partie postérieure. Par exemple le brevet FR-A-2 553 636 décrit une chaussure dont la semelle intermédiaire présente, le long de la partie antérieure de son bord extérieur, des entailles dans lesquelles sont logés des éléments réalisés en un matériau de dureté plus élevée que celle du matériau constituant la couche de la semelle intermédiaire. Cette dernière disposition vise essentiellement à améliorer les caractéristiques de flexibilité et d'amortissement dans le sens du déroulement du pas lors de la marche, la course ou le saut. Par ailleurs la demande de brevet FR-A-2 608 387 de la demanderesse décrit une semelle de marche pour une chaussure de sport qui présente des entailles prévues dans la partie antérieure de l'un au moins des bords latéraux de la semelle s'étendant le long de la zone antérieure de celle-ci sur laquelle prend appui l'avant-pied du porteur de la chaussure, ces entailles, qui sont remplies d'un matériau ayant un degré d'élasticité supérieur à celui du matériau constituant la semelle proprement dite, délimitant entre elles des languettes flexibles transversalement.Shoe soles are already known, the edges of which are provided with transverse notches with respect to the longitudinal axis of the shoe in order to facilitate relative torsion of the front part of the sole with respect to its rear part. For example, patent FR-A-2,553,636 describes a shoe whose midsole has, along the front part of its outer edge, notches in which are housed elements made of a material of higher hardness than that of the material constituting the layer of the midsole. This latter provision essentially aims at improving the flexibility and damping characteristics in the direction of the course of the step during walking, running or jumping. Furthermore, patent application FR-A-2 608 387 by the applicant describes a walking sole for a sports shoe which has notches provided in the front part of at least one of the lateral edges of the sole extending along the anterior zone thereof supported by the forefoot of the shoe wearer, these notches, which are filled with a material having a higher degree of elasticity than that of the material constituting the sole said, delimiting between them flexible tongues transversely.

La présente invention concerne des perfectionnements apportés à une telle semelle de marche de manière à lui donner à la fois une grande souplesse dans le sens longitudinal et une certaine rigidité transversale au-delà des entailles, vers la partie centrale de la semelle.The present invention relates to improvements made to such a walking sole so as to give it both great flexibility in the longitudinal direction and a certain transverse rigidity beyond the notches, towards the central part of the sole.

A cet effet cette semelle de marche pour une chaussure de sport, notamment une chaussure de golf, comportant une partie principale en matière plastique moulée relativement rigide, présentant, dans la partie antérieure de l'un moins de ses bords latéraux, qui s'étend le long de la zone antérieure de la semelle sur laquelle prend appui l'avant-pied du porteur de la chaussure, une succession d'entailles sensiblement transversales, espacées les unes des autres, débouchant dans le bord de la semelle et s'étendant vers la partie centrale de celle-ci, ces entailles étant remplies d'une matière qui a un degré d'élasticité supérieur à celui de la matière constituant la partie principale de la semelle et qui forme des éléments de remplissage élastiques individuels logés dans les entailles respectives, ces entailles délimitant entre elles au moins une languette flexible transversalement autour d'une ligne située à proximité des extrémités internes des entailles, est caractérisée en ce qu'elle présente, associée à au moins une de ses entailles, au moins une ouverture allongée dans une direction sensiblement transversale, alignée avec cette entaille prévue dans le bord latéral, à distance de cette dernière, et un élément en matière élastique remplissant l'ouverture allongée.To this end, this walking sole for a sports shoe, in particular a golf shoe, comprising a main part made of relatively rigid molded plastic material, having, in the front part of one less of its lateral edges, which extends along the anterior zone of the sole on which the forefoot of the shoe wearer rests, a succession of substantially transverse notches, spaced from each other, opening into the edge of the sole and extending towards the central part thereof, these notches being filled with a material which has a higher degree of elasticity than that of the material constituting the main part of the sole and which forms individual elastic filling elements housed in the respective notches , these notches delimiting between them at least one flexible tongue transversely around a line located near the internal ends of the notches, is ca characterized in that it has, associated with at least one of its notches, at least one elongated opening in a substantially transverse direction, aligned with this notch provided in the lateral edge, at a distance from the latter, and an element made of elastic material filling the elongated opening.

Suivant une caractéristique complémentaire de l'invention chacune des languettes flexibles porte au moins un crampon destiné à s'enfoncer dans le sol, ce crampon étant fixé définitivement à la semelle, lors du moulage de celle-ci, ou étant fixé, après moulage de la semelle, dans un organe d'accrochage prévu au moulage sur la languette flexible.According to an additional characteristic of the invention, each of the flexible tongues carries at least one crampon intended to sink into the ground, this crampon being permanently fixed to the sole, during the molding thereof, or being fixed, after molding of the sole, in a fastening member provided for molding on the flexible tongue.

L'invention a également pour objet une chaussure de sport, notamment une chaussure de golf, pourvue d'une semelle de marche telle que ci-dessus spécifiée.The invention also relates to a shoe for sport, in particular a golf shoe, provided with a walking sole as specified above.

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

  • La figure 1 est une vue de dessous d'une semelle de marche pour une chaussure de sport, dans le cas où les éléments de remplissage des entailles latérales sont reliés les uns aux autres par une bordure en matière élastique.
  • La figure 2 est une vue en coupe verticale faite suivant la ligne II-II de la figure 1.
  • Les figures 3 et 4 sont des vues en coupe verticale, semblables à celle de la figure 2, dans le cas de variantes de réalisation de la semelle.
  • la figure 5 est une vue de dessous schématique d'une variante d'exécution de la partie antérieure d'une semelle de marche suivant l'invention.
  • La figure 6 est une vue en coupe verticale faite suivant la ligne VI-VI de la figure 5.
  • La figure 7 est une vue en coupe verticale analogue à celle de la figure 6 et montrant une variante d'exécution.
  • La figure 8 est une vue de dessous schématique partielle d'une autre variante d'exécution de la partie antérieure d'une semelle de marche suivant l'invention.
  • La figure 9 est une vue en coupe verticale faite suivant la ligne IX-IX de la figure 8.
  • La figure 10 est une vue en coupe verticale analogue à celle de la figure 9 et montrant une variante d'exécution.
  • La figure 11 est une vue de dessous d'une autre variante d'exécution d'une semelle de marche suivant l'invention.
  • La figure 12 est une vue en coupe verticale faite suivant la ligne XII-XII de la figure 11.
  • La figure 13 est une vue de dessous d'une autre variante d'exécution de la semelle.
  • La figure 14 est une vue en coupe verticale faite suivant la ligne XIV-XIV de la figure 13.
Various embodiments of the present invention will be described below, by way of non-limiting examples, with reference to the appended drawing in which:
  • Figure 1 is a bottom view of a walking sole for a sports shoe, in the case where the filling elements of the side cuts are connected to each other by an edge of elastic material.
  • Figure 2 is a vertical sectional view taken along line II-II of Figure 1.
  • Figures 3 and 4 are views in vertical section, similar to that of Figure 2, in the case of alternative embodiments of the sole.
  • Figure 5 is a schematic bottom view of an alternative embodiment of the front part of a tread according to the invention.
  • Figure 6 is a vertical sectional view taken along line VI-VI of Figure 5.
  • Figure 7 is a vertical sectional view similar to that of Figure 6 and showing an alternative embodiment.
  • Figure 8 is a partial schematic bottom view of another alternative embodiment of the front part of a tread according to the invention.
  • Figure 9 is a vertical sectional view taken along line IX-IX of Figure 8.
  • Figure 10 is a vertical sectional view similar to that of Figure 9 and showing an alternative embodiment.
  • Figure 11 is a bottom view of another alternative embodiment of a tread following the invention.
  • Figure 12 is a vertical sectional view taken along line XII-XII of Figure 11.
  • Figure 13 is a bottom view of another alternative embodiment of the sole.
  • Figure 14 is a vertical sectional view taken along line XIV-XIV of Figure 13.

La semelle de marche suivant l'invention qui est désignée dans son ensemble par la référence 1 sur la figure 1, comprend une partie antérieure qui est adaptée de manière à présenter une certaine souplesse longitudinale à l'endroit où prend appui l'avant-pied du porteur de la chaussure, tout en conservant une certaine rigidité transversale. A cet effet la semelle de marche 1 présente, dans sa partie antérieure et au moins le long de son bord latéral extérieur 1a, une association de deux matériaux ayant des degrés d'élasticité différents. Plus particulièrement la semelle de marche 1 comprend deux parties A et B réalisées en des matières plastiques ayant des degrés d'élasticité différents. La semelle de marche 1 est moulée dans sa plus grande partie A en une matière plastique relativement rigide et elle présente, le long de la partie antérieure de son bord latéral extérieur 1a, une partie surmoulée B en une matière plastique essentiellement élastique ou ayant un degré d'élasticité nettement supérieur à celui de la matière plastique constituant la partie principale A de la semelle. La matière plastique relativement élastique de la nappe surmoulée B remplit une succession d'entailles 2 qui sont espacées les unes des autres et qui sont formées lors du moulage de la partie principale A de la semelle. Ces entailles 2 débouchent dans le bord latéral extérieur 1a de cette partie A et elles s'étendent suivant des directions sensiblement transversales, vers le plan longitudinal médian de la semelle. Les entailles 2 peuvent être délimitées par des faces parallèles ou encore convergentes en direction du plan longitudinal médian, de manière à avoir ainsi une forme sensiblement trapézoïdale à grande base externe située dans le plan du bord latéral extérieur 1a, et à petite base interne 2a, constituant l'extrémité interne de l'entaille 2. Dans les entailles 2 sont ainsi formés des éléments de remplissage élastiques individuels 3 qui peuvent être reliés les uns aux autres le long du bord latéral extérieur 1a de la semelle 1, comme il est représenté sur la figure 1, par une bordure 4 réalisée par surmoulage en même temps que les éléments de remplissage élastiques individuels 3. Autrement dit la partie surmoulée B en matériau élastique est constituée, dans la forme d'exécution non limitative représentée sur la figure 1, d'une part par la bordure continue 4, qui forme en fait une partie du bord latéral extérieur 1a de la semelle de marche 1, et d'autre part par les éléments de remplissage élastiques individuels 3 qui forment des sortes de dents engagées étroitement dans les entailles 2 de la partie A en matière plastique sensiblement rigide.The tread according to the invention which is designated as a whole by the reference 1 in Figure 1, comprises a front part which is adapted so as to have a certain longitudinal flexibility at the place where the forefoot is supported of the shoe wearer, while retaining a certain transverse rigidity. For this purpose the outsole 1 has, in its front part and at least along its outer side edge 1a, a combination of two materials having different degrees of elasticity. More particularly the walking sole 1 comprises two parts A and B made of plastic materials having different degrees of elasticity. The walking sole 1 is molded for the most part A from a relatively rigid plastic material and it has, along the front part of its outer lateral edge 1 a , an overmolded part B made from an essentially elastic plastic material or having a degree of elasticity significantly higher than that of the plastic constituting the main part A of the sole. The relatively elastic plastics material of the overmolded ply B fills a succession of notches 2 which are spaced from one another and which are formed during the molding of the main part A of the sole. These notches 2 open in the outer side edge 1a of the part A and they extend in substantially transverse directions to the median longitudinal plane of the sole. The notches 2 may be delimited by parallel faces or converging towards the longitudinal median plane, to thereby have a substantially trapezoidal shape with large located external base in the plane of the outer side edge 1a, and small internal base 2a , constituting the inner end of the slot 2. in the grooves 2 are thus formed of individual elastic filler elements 3 which can be connected to each other along the outer side edge 1a of the tread 1, as represented in FIG. 1, by a border 4 produced by overmolding at the same time as the individual elastic filling elements 3. In other words the overmolded part B made of elastic material is made up, in the non-limiting embodiment shown in FIG. 1 on the one hand by the solid border 4, which in fact forms part of the outer side edge 1a of the walking sole 1, and on the other hand by the individual elastic filling elements 3 which form kinds of teeth closely engaged in the notches 2 of the part A of substantially rigid plastic.

Les entailles 2 de la partie A de la semelle de marche délimitent entre elles des languettes 5 faisant partie de la partie principale moulée, en matière relativement rigide A, et qui sont flexibles transversalement autour d'une ligne de flexion X passant à proximité des extrémités internes 2a des entailles 2.The notches 2 of the part A of the walking sole delimit between them tongues 5 forming part of the main molded part, of relatively rigid material A, and which are flexible transversely around a flexion line X passing near the ends internal 2a notches 2.

Suivant l'invention la partie principale en matière relativement rigide A de la semelle présente des ouvertures allongées 6 qui s'étendent dans le prolongement de toutes les entailles 2 ou de certaines d'entre elles. Dans la forme d'exécution représentée sur la figure 1 à chaque entaille 2 est associée une ouverture 6 qui est distante de l'entaille 2 en en étant séparée par un pont 7 de matière relativement rigide A constituant la partie principale de la semelle. Les ouvertures 6 peuvent avoir n'importe quelle forme et notamment une forme trapézoïdale prolongeant sensiblement la forme trapézoïdale des entailles 2. Autrement dit chaque pont 7 de matière relativement rigide A s'étend entre la petite base 2a constituant l'extrémité interne d'une entaille 2 et la grande base 6a d'une ouverture trapézoïdale 6 dont la petite base 6b est tournée vers le bord latéral intérieur 1b de la semelle 1, les côtés convergents de l'ouverture 6 étant sensiblement alignés avec les côtés convergents de l'entaille 2.According to the invention the main part in matters relatively rigid A of the sole has elongated openings 6 which extend in the extension of all the notches 2 or some of them. In the embodiment shown in Figure 1 with each notch 2 is associated an opening 6 which is distant from the notch 2 by being separated by a bridge 7 of relatively rigid material A constituting the main part of the sole. The openings 6 can have any shape and in particular a trapezoidal shape substantially extending the trapezoidal shape of the notches 2. In other words each bridge 7 of relatively rigid material A extends between the small base 2a constituting the internal end of a notch 2 and the large base 6a of a trapezoidal opening 6 whose small base 6b is turned towards the inner lateral edge 1b of the sole 1, the converging sides of the opening 6 being substantially aligned with the converging sides of the notch 2.

Chaque ouverture 6 est remplie de matière plastique élastique surmoulée de manière à contenir un élément de remplissage élastique 8, cette matière élastique pouvant être la même que la matière B ou une matière différente. Comme on peut le voir sur la figure 2 les éléments de remplissage externes 3 et internes 8 sont formés de la même matière élastique B et ils sont reliés l'un à l'autre par une partie 9 de matière plastique surmoulée B formant une "arche" par dessus le pont 7 de matière A. L'ensemble de la semelle formée par les matières plastiques A et B peut être recouvert d'une couche d'un matériau de remplissage C, comme il est représenté sur la figure 2, ce matériau C s'étendant entre le bord latéral extérieur 1a, en matière relativement élastique B, et le bord latéral intérieur 1b, en matière relativement rigide A, de la semelle. Le matériau C a des caractéristiques d'élasticité différentes de celles des matières plastiques A et B et n'ayant pas une influence déterminante sur le comportement en flexion de la semelle qui reste essentiellement déterminé par la nature des matières plastiques A et B.Each opening 6 is filled with elastic plastic material overmolded so as to contain an elastic filling element 8, this elastic material possibly being the same as material B or a different material. As can be seen in Figure 2 the external filling elements 3 and internal 8 are formed of the same elastic material B and they are connected to each other by a part 9 of overmolded plastic material B forming an "arch "over the bridge 7 of material A. The entire sole formed by the plastics A and B can be covered with a layer of filling material C, as shown in FIG. 2, this material C extending between the outer side edge 1a in a relatively elastic material B, and the inner side edge 1b, relatively rigid material A, from the sole. Material C has elasticity characteristics different from those of plastics A and B and not having a decisive influence on the bending behavior of the sole, which remains essentially determined by the nature of plastics A and B.

Dans la variante d'exécution représentée sur la figure 3 la couche de matière plastique élastique B a une épaisseur plus importante que dans le cas de la forme d'exécution représentée sur la figure 2 et elle s'étend sur toute la largeur et l'épaisseur de 1a semelle complète 1, entre son bord latéral extérieur la et le bord latéral intérieur 1b, en matière rigide A, en jouant la rôle de la couche de matériau de remplissage C.In the variant shown in FIG. 3, the layer of elastic plastic material B has a greater thickness than in the case of the embodiment shown in FIG. 2 and it extends over the entire width and the thickness of 1 a complete sole 1, between its outer lateral edge 1a and the inner lateral edge 1b, of rigid material A, playing the role of the layer of filling material C.

Dans la variante d'exécution représentée sur la figure 4 la couche de matière plastique élastique B, d'épaisseur égale à celle de la semelle complète, ne s'étend que partiellement dans le sens transversal, pratiquement au-dessus des entailles 2, des ponts 7 et des ouvertures 6. A partir des extrémités internes 6b des ouvertures 6 l'épaisseur de la semelle complète est constituée en totalité par la matière plastique relativement rigide A.In the variant shown in FIG. 4, the layer of elastic plastic material B, of thickness equal to that of the complete sole, extends only partially in the transverse direction, practically above the notches 2, bridges 7 and openings 6. From the internal ends 6b of the openings 6 the thickness of the complete sole consists entirely of the relatively rigid plastic A.

Les figures 5 et 6 représentent une variante d'exécution de la semelle qui comporte un nez de marche antérieur 10 et une rainure de flexion 11 entre les entailles externes 2 et les ouvertures internes 6. Cette rainure de flexion 11 qui est sensiblement parallèle au bord latéral externe 1a, est ménagée dans la face inférieure de la partie en matière plastique relativement rigide A et en particulier dans les ponts 7 et elle est ouverte vers le bas, comme on peut le voir sur la figure 6. Dans la variante représentée sur la figure 7, la rainure de flexion 11 est, par contre, ménagée dans la face supérieure des ponts 7 et elle s'ouvre alors vers le haut. Les figures 4,5 et 6 montrent également que la semelle 1 porte des crampons 12 qui sont fixés aux languettes flexibles 5 et également le long du bord intérieur 1b de la partie antérieure de la semelle 1.Figures 5 and 6 show an alternative embodiment of the sole which comprises a front stair nose 10 and a flex groove 11 between the external notches 2 and the internal openings 6. This flex groove 11 which is substantially parallel to the edge lateral lateral 1 a , is formed in the lower face of the relatively rigid plastic part A and in particular in the bridges 7 and it is open downwards, as is can see in Figure 6. In the variant shown in Figure 7, the flexure groove 11 is, on the other hand, formed in the upper face of the bridges 7 and it then opens upwards. FIGS. 4,5 and 6 also show that the sole 1 carries studs 12 which are fixed to the flexible tongues 5 and also along the inner edge 1b of the front part of the sole 1.

Les figures 8,9 et 10 illustrent des variantes d'exécution dans lesquelles des contours de jonction sont prévus sur le pourtour des entailles 2 et des ouvertures 6. Sur la figure 9 les contours de jonction 13 et 14, entourant respectivement les éléments de remplissage 3,8 logés dans les entailles 2 et les ouvertures 6, sont formés en creux dans la matière plastique relativement rigide A constituant la partie principale de la semelle. Par contre dans la variante d'exécution représentée sur la figure 10, ces contours 13,14 sont formés en creux dans le pourtour des éléments de remplissage 3,8 logés respectivement dans les entailles 2,6.Figures 8,9 and 10 illustrate alternative embodiments in which junction contours are provided on the periphery of the notches 2 and openings 6. In Figure 9 the junction contours 13 and 14, respectively surrounding the filling elements 3.8 housed in the notches 2 and the openings 6, are hollowed out in the relatively rigid plastic A constituting the main part of the sole. In contrast, in the variant shown in FIG. 10, these contours 13,14 are formed in the hollow around the periphery of the filling elements 3,8 housed respectively in the notches 2,6.

La figure 11 représente une variante d'exécution de l'invention dans laquelle les éléments de remplissage 3, formés dans les encoches latérales 2, ne sont pas reliés les uns aux autres par une bordure 4, comme dans le cas de la forme d'exécution représentée sur la figure 1. Autrement dit les éléments de remplissage élastiques 3, logés dans les entailles latérales respectives 2, sont indépendants les uns des autres. Les éléments de remplissage 8 en matière élastique qui sont logés dans les ouvertures 6, peuvent être reliés aux éléments de remplissage 3 logés dans les entailles 2, comme il a été décrit dans les exemples précédents. Suivant une variante ces éléments de remplissage 8 peuvent être totalement séparés des éléments de remplissage 3, comme il est représenté sur la figure 12, et ils peuvent être alors constitués en une matière différente de celle constituant les éléments de remplissage 3.FIG. 11 represents an alternative embodiment of the invention in which the filling elements 3, formed in the lateral notches 2, are not connected to each other by a border 4, as in the case of the shape of execution shown in Figure 1. In other words the elastic filling elements 3, housed in the respective lateral notches 2, are independent of each other. The filling elements 8 of elastic material which are housed in the openings 6, can be connected to the filling elements 3 housed in the notches 2, as has been described in the previous examples. According to a variant, these filling elements 8 can be completely separated from the filling elements 3, as shown in FIG. 12, and they can then be made of a material different from that constituting the filling elements 3.

Dans la variante d'exécution représentée sur les figures 13 et 14, la matière plastique B relativement élastique qui forme les éléments de remplissage 3 et 8, recouvre au moins partiellement les bords des entailles 2 et des ouvertures 6. Autrement dit les éléments de remplissage 3,8 présentent des parties supérieures, situées respectivement au-dessus des entailles 2 et des ouvertures 6, de plus grande largeur que leurs parties inférieures logées étroitement dans les entailles 2 et les ouvertures 6, en formant des parties latérales en saillie 3a, comme il est représenté sur la figure 14 dans le cas d'un élément de remplissage 3 logé dans une entaille 2.In the variant shown in FIGS. 13 and 14, the relatively elastic plastic B which forms the filling elements 3 and 8 at least partially covers the edges of the notches 2 and the openings 6. In other words, the filling elements 3.8 have upper parts, situated respectively above the notches 2 and the openings 6, of greater width than their lower parts housed closely in the notches 2 and the openings 6, forming lateral projecting parts 3a, as it is shown in FIG. 14 in the case of a filling element 3 housed in a notch 2.

Claims (19)

1.- Semelle de marche pour une chaussure de sport, notamment une chaussure de golf, comportant une partie principale en matière plastique moulée relativement rigide, présentant, dans la partie antérieure de l'un moins de ses bords latéraux (1a), qui s'étend le long de la zone antérieure de la semelle sur laquelle prend appui l'avant-pied du porteur de la chaussure, une succession d'entailles (2) sensiblement transversales, espacées les unes des autres, débouchant dans le bord (1a) de la semelle et s'étendant vers la partie centrale de celle-ci, ces entailles (2) étant remplies d'une matière (B) qui a un degré d'élasticité supérieur à celui de la matière (A) constituant la partie principale de la semelle et qui forme des éléments de remplissage élastiques individuels (3) logés dans les entailles (2) respectives, ces entailles (2) délimitant entre elles au moins une languette (5) flexible transversalement autour d'une ligne (X) située à proximité des extrémités internes (2a) des entailles (2) caractérisée en ce qu'elle présente, associée à au moins une de ses entailles (2), au moins une ouverture (6) allongée dans une direction sensiblement transversale, alignée avec cette entaille (2) prévue dans le bord latéral (1a), à distance de cette dernière, et un élément en matière élastique (8) remplissant l'ouverture allongée (6).1.- Walking sole for a sports shoe, in particular a golf shoe, comprising a main part made of relatively rigid molded plastic, having, in the front part of one of its side edges (1a), which s 'extends along the anterior zone of the sole on which the forefoot of the shoe wearer bears, a succession of notches (2) substantially transverse, spaced from one another, opening into the edge (1a) of the sole and extending towards the central part thereof, these notches (2) being filled with a material (B) which has a higher degree of elasticity than that of the material (A) constituting the main part of the sole and which forms individual elastic filling elements (3) housed in the respective notches (2), these notches (2) delimiting between them at least one tongue (5) flexible transversely around a line (X) located near the ends s internal (2a) notches (2) characterized in that it has, associated with at least one of its notches (2), at least one opening (6) elongated in a substantially transverse direction, aligned with this notch (2 ) provided in the lateral edge (1a), at a distance from the latter, and an element of elastic material (8) filling the elongated opening (6). 2.- Semelle de marche suivant la revendication 1 caractérisée en ce qu'une entaille latérale (2) est séparée de l'ouverture (6) alignée avec elle par un pont (7) de matière relativement rigide (A) constituant la partie principale de la semelle.2.- outsole according to claim 1 characterized in that a lateral notch (2) is separated from the opening (6) aligned with it by a bridge (7) of relatively rigid material (A) constituting the main part of the sole. 3.- Semelle de marche suivant la revendication 2 caractérisée en ce que chaque entaille (2) a une forme sensiblement trapézoïdale à grande base externe située dans le plan du bord extérieur (1a) de la semelle et à petite base interne (2a), constituant l'extrémité interne de l'entaille (2), et chaque ouverture (6) a une forme sensiblement trapézoïdale prolongeant la forme trapézoïdale de l'entaille (2), la petite base (2a) constituant l'extrémité interne d'une entaille (2) étant séparée, par le pont (7) de matière relativement rigide (A) de la grande base (6a) d'une ouverture trapézoïdale (6) dont la petite base (6b) est tournée vers le bord intérieur (1b) de la semelle (1), les côtés convergents de l'ouverture (6) étant sensiblement alignés avec les côtés convergents de l'entaille (2).3. A walking sole according to claim 2 characterized in that each notch (2) has a substantially trapezoidal shape with a large external base situated in the plane of the external edge (1a) of the sole and with a small internal base (2a), constituting the internal end of the notch (2), and each opening (6) has a substantially trapezoidal shape extending the trapezoidal form of the notch (2), the small base (2a) constituting the internal end of a notch (2) being separated by the bridge (7) of relatively rigid material (A) from the large base (6a) of a trapezoidal opening (6) whose small base (6b) faces the inner edge (1b ) of the sole (1), the converging sides of the opening (6) being substantially aligned with the converging sides of the notch (2). 4.- Semelle de marche suivant l'une quelconque des revendications 2 et 3 caractérisée en ce qu'elle comporte une rainure de flexion (11) entre les entailles (2) et les ouvertures (6).4. A tread according to any one of claims 2 and 3 characterized in that it comprises a flexure groove (11) between the notches (2) and the openings (6). 5.- Semelle de marche suivant la revendication 4 caractérisée en ce que la rainure de flexion (11) est ménagée dans la face inférieure du pont (7) de matière relativement rigide (A) s'étendant entre les entailles (2) et les ouvertures (6).5. A tread according to claim 4 characterized in that the flex groove (11) is formed in the underside of the bridge (7) of relatively rigid material (A) extending between the notches (2) and the openings (6). 6.- Semelle de marche suivant la revendication 4 caractérisée en ce que la rainure de flexion (11) est ménagée dans la face supérieure du pont (7) de matière relativement rigide (A) s'étendant entre les entailles (2) et les ouvertures (6).6. A tread according to claim 4 characterized in that the flex groove (11) is formed in the upper face of the bridge (7) of relatively rigid material (A) extending between the notches (2) and the openings (6). 7.- Semelle de marche suivant l'une quelconque des revendications 4 à 6 caractérisée en ce que la rainure de flexion (11) est parallèle au bord latéral (1a).7. A tread according to any one of claims 4 to 6 characterized in that the groove of bending (11) is parallel to the lateral edge (1a). 8.- Semelle de marche suivant l'une quelconque des revendications précédentes caractérisée en ce que les éléments de remplissage (3,8) logés respectivement dans les entailles (2) et les ouvertures (6) sont entourés par des contours de jonction (13,14) qui sont formés en creux dans la matière plastique relativement rigide (A) les entourant.8. A tread according to any one of the preceding claims characterized in that the filling elements (3,8) housed respectively in the notches (2) and the openings (6) are surrounded by junction contours (13 , 14) which are hollowed out in the relatively rigid plastic material (A) surrounding them. 9.- Semelle de marche suivant l'une quelconque des revendications 1 à 7 caractérisée en ce que les éléments de remplissage (3,8) logés respectivement dans les entailles (2) et les ouvertures (6) sont entourés par des contours de jonction (13,14) qui sont formés en creux dans le pourtour de ces éléments de remplissage (3,8).9. A tread according to any one of claims 1 to 7 characterized in that the filling elements (3,8) housed respectively in the notches (2) and the openings (6) are surrounded by junction contours (13,14) which are formed in the hollow around the periphery of these filling elements (3,8). 10.- Semelle de marche suivant l'une quelconque des revendications précédentes caractérisée en ce que les éléments de remplissage (3,8) présentent des parties supérieures, situées respectivement au-dessus des entailles (2) et des ouvertures (6), de plus grande largeur que leurs parties inférieures logées étroitement dans les entailles (2) et les ouvertures (6), en formant des parties latérales en saillie (3a) recouvrant au moins partiellement les bords des entailles (2) et des ouvertures (6).10. A tread according to any one of the preceding claims characterized in that the filling elements (3,8) have upper parts, located respectively above the notches (2) and openings (6), greater width than their lower parts housed closely in the notches (2) and the openings (6), forming lateral projecting parts (3a) at least partially covering the edges of the notches (2) and the openings (6). 11.- Semelle de marche suivant l'une quelconque des revendications précédentes caractérisée en ce que les éléments de remplissage (3,8) logés respectivement dans les entailles (2) et les ouvertures (6) sont constitués de la même matière plastique relativement élastique (B).11. A tread according to any one of the preceding claims characterized in that the filling elements (3,8) respectively housed in the notches (2) and the openings (6) are made of the same relatively elastic plastic material. (B). 12.- Semelle de marche suivant la revendication 11 caractérisée en ce que les éléments de remplissage (3,8) logés respectivement dans une entaille (2) et une ouverture (6) sont reliés l'un à l'autre par une partie (9) de matière plastique surmoulée (B) formant "arche" par-dessus le pont (7) de matière plastique relativement rigide (A) s'étendant entre l'entaille (2) et l'ouverture (6).12. A tread according to claim 11 characterized in that the filling elements (3,8) housed respectively in a notch (2) and an opening (6) are connected to each other by a part (9) of overmolded plastic material (B) forming an "arch" over the bridge (7) of relatively rigid plastic material (A) extending between the notch (2 ) and the opening (6). 13.- Semelle de marche suivant l'une quelconque des revendications 1 à 10 caractérisée en ce que les éléments de remplissage (3,8) logés respectivement dans les entailles (2) et les ouvertures (6) sont constitués de matières élastiques différentes.13.- outsole according to any one of claims 1 to 10 characterized in that the filling elements (3,8) housed respectively in the notches (2) and the openings (6) are made of different elastic materials. 14.- Semelle de marche suivant l'une quelconque des revendications précédentes caractérisée en ce que l'ensemble de la semelle formée par la partie principale en matière plastique relativement rigide (A) et les éléments de remplissage (3,8) en matière relativement élastique (B) est recouvert d'une couche d'un matériau de remplissage (C) s'étendant entre le bord latéral extérieur (1a), en matière relativement élastique (B), de la semelle et le bord latéral intérieur (1b), en matière relativement rigide (A), de la semelle.14. A walking sole according to any one of the preceding claims characterized in that the whole sole formed by the main part of relatively rigid plastic (A) and the filling elements (3, 8) of relatively material elastic (B) is covered with a layer of filling material (C) extending between the outer lateral edge (1a), of relatively elastic material (B), of the sole and the inner lateral edge (1b) , in relatively rigid material (A), of the sole. 15.-Semelle de marche suivant l'une quelconque des revendications 1 à 13 caractérisée en ce que la couche de matière plastique (B) relativement élastique a une épaisseur correspondant à l'épaisseur de la semelle complète (1) et elle s'étend sur toute la largeur de cette semelle.15. A walking sole according to any one of claims 1 to 13 characterized in that the plastic layer (B) relatively elastic has a thickness corresponding to the thickness of the complete sole (1) and it extends over the entire width of this sole. 16.- Semelle de marche suivant l'une quelconque des revendications 1 à 13 caractérisée en ce que la couche de matière plastique (B) relativement élastique, d'épaisseur égale à celle de là semelle complète, s'étend partiellement, dans le sens transversal, au-dessus des entailles (2), des ponts (7) de matière relativement rigide (A) et des ouvertures (6) et à partir des extrémités internes (6b) des ouvertures (6) l'épaisseur de la semelle complète est constituée en totalité par la matière plastique relativement rigide (A).16.- outsole according to any one of claims 1 to 13 characterized in that the plastic layer (B) relatively elastic, of thickness equal to that of the complete sole, extends partially, in the direction transverse, above the notches (2), bridges (7) of relatively rigid material (A) and openings (6) and from the internal ends (6b) of the openings (6) the thickness of the complete sole consists entirely of the relatively rigid plastic material (A). 17.- Semelle de marche suivant l'une quelconque des revendications précédentes caractérisée en ce que les éléments de remplissage élastiques (3) logés dans les entailles (2) sont reliés les uns aux autres, le long du bord latéral extérieur de la semelle (1), par une bordure (4) réalisée par surmoulage en même temps que les éléments de remplissage élastiques individuels (3).17. A walking sole according to any one of the preceding claims characterized in that the elastic filling elements (3) housed in the notches (2) are connected to each other, along the outer lateral edge of the sole ( 1), by an edge (4) produced by overmolding at the same time as the individual elastic filling elements (3). 18.- Semelle de marche suivant l'une quelconque des revendications précédentes caractérisée en ce que chacune des languettes flexibles (5) porte au moins un crampon (12) destiné à s'enfoncer dans le sol.18. A tread according to any one of the preceding claims characterized in that each of the flexible tongues (5) carries at least one spike (12) intended to sink into the ground. 19.- Chaussure de sport, notamment une chaussure de golf, pourvue d'une semelle de marche suivant l'une quelconque des revendications 1 à 18.19. A sports shoe, in particular a golf shoe, provided with a walking sole according to any one of claims 1 to 18.
EP90420160A 1989-04-25 1990-03-29 Sole for a sports shoe Expired - Lifetime EP0395538B1 (en)

Applications Claiming Priority (2)

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FR8905475 1989-04-25
FR8905475A FR2646060B1 (en) 1989-04-25 1989-04-25 STEP SOLE FOR A SPORTS SHOE, ESPECIALLY A GOLF SHOE AND SHOE PROVIDED WITH SUCH A SOLE

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EP0395538A1 true EP0395538A1 (en) 1990-10-31
EP0395538B1 EP0395538B1 (en) 1993-01-13

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EP (1) EP0395538B1 (en)
JP (1) JPH02295502A (en)
DE (1) DE69000752T2 (en)
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FR2646060A1 (en) 1990-10-26
US5024007A (en) 1991-06-18
EP0395538B1 (en) 1993-01-13
DE69000752T2 (en) 1993-06-17
DE69000752D1 (en) 1993-02-25
JPH02295502A (en) 1990-12-06
FR2646060B1 (en) 1991-08-16

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