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EP0548475B1 - Semelle de chaussure de sport multicouche - Google Patents

Semelle de chaussure de sport multicouche Download PDF

Info

Publication number
EP0548475B1
EP0548475B1 EP92116508A EP92116508A EP0548475B1 EP 0548475 B1 EP0548475 B1 EP 0548475B1 EP 92116508 A EP92116508 A EP 92116508A EP 92116508 A EP92116508 A EP 92116508A EP 0548475 B1 EP0548475 B1 EP 0548475B1
Authority
EP
European Patent Office
Prior art keywords
layer
sole according
sole
stiffener
zone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92116508A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0548475A1 (fr
Inventor
Francois Girard
Jacques Quellais
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Salomon SAS
Original Assignee
Salomon SAS
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=9420602&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0548475(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Salomon SAS filed Critical Salomon SAS
Publication of EP0548475A1 publication Critical patent/EP0548475A1/fr
Application granted granted Critical
Publication of EP0548475B1 publication Critical patent/EP0548475B1/fr
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
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/12—Soles with several layers of different materials

Definitions

  • the present invention relates to the soles of sports shoes produced according to a laminated profile in several layers filling respectively distinct functions, which sole is surmounted by a rod and comprises or not on its rear part, a projecting external heel, as described in the preamble of claim 1 and known from EP-A-458,174.
  • the flexibility in the longitudinal direction of the sole of the shoe is essential, not only to allow an unwinding harmonious foot, when practicing cross-country skiing or hiking Nordic proper but also when taking off the skis for be able to walk freely.
  • soles having the qualities are sought mentioned above but which are also capable of ensuring a certain comfort and cushioning the impact points in contact with the sole on the ground while restoring energy.
  • French Patent No. 2,520,886 relates to an athletic shoe comprising a laminated sole composed of a first layer or sole of contact whose upper part receives a second layer or flexible interlayer in a central plane of which a reinforcement element is inserted at the level of the heel and extending towards the arch.
  • HANWAG a mountain shoe, which offers a sole made up, in a direction of bottom above, an external contact layer on which is superimposed successively a shock absorbing layer then a very first assembly rigid with anti-twist insert.
  • a shoe also known under the trademark "ASOLO” essentially differs in that the cushioning layer is limited to the area of the heel and fits in a corresponding recess in the layer of external contact.
  • such a sole has a stiffening element or shank in rigid, elastically deformable plastic material having a zone of flexion, at least in the metatarsophalangeal zone, in the form of blades spaced transverse, and separated by bridges of lesser thickness and on which is added, by overmolding, a flexible plastic material, elastically deformable.
  • Bridges have openings through which can pass the flexible overmolding material, and are shaped so as to rupture in making the blades rigid, independent of each other during the first use of the sole, their connection then being simply ensured by the material flexible plastic.
  • the present invention relates to a shoe sole of sport made according to a laminated profile in several layers filling respectively separate functions, which sole is surmounted by a rod and includes or not at its rear part, an external heel.
  • the efficiency of the outer or contact layer is improved due to the contact and direct cooperation of the nerve layer with this outer layer the nerve layer then constituting for the contact layer a kind of carcass preventing overall deformation of the contact layer in the way of a radial carcass of a car tire, and allowing the use of rubbers more tender therefore more adherent.
  • the sports shoe 1 shown as a first example of embodiment in Figures 1 and 2 has an outer sole 2, designated in its assembly, on which is mounted a rod 3 having in a manner known per se an opening to allow the passage of the foot 4, this opening being provided a closure system 5 such as a lacing system.
  • the rear part of the sole 2 has a heel 6.
  • the sole 2 is produced according to a laminated profile, as shown in the figure 2, composed of several layers respectively fulfilling functions separate.
  • the comfort layer 8 is made either of a flexible material of density uniform or progressive density increasing from its upper part towards its lower part, in contact with the rigid intermediate nerve 9.
  • the comfort layer 8 is made up of several separate adjacent areas, one first zone 8a of high elasticity corresponding to the heel, a second zone 8b of average elasticity corresponding to the arch favoring circulation of the blood, a third zone 8c of low elasticity favoring the control of the market.
  • the rigidity of the intermediate layer or nerve 9 is of constant value at all points, this value being suitably selected during manufacture according to the destination of the shoe ( Figure 5).
  • This layer 9 can also be constituted by a nerve 9A composed of a plurality of zones 9a, 9b, 9c extending on either side of a twist axis x-x ' and whose stiffness values are different and suitably selected in manufacturing course depending on the destination of the shoe.
  • the nerve 9A can consist of a rigid rear region 9a, a semi-rigid intermediate zone 9b capable of promoting flexion in the zone of metatarsals of foot 4 and a rigid front region 9c in the phalanx area, for shoes particularly intended for walking in high mountains (figure 6).
  • the nerve 9A can consist of a rigid rear region 9a, a flexible intermediate zone 9b, more generally promoting flexion in the zone of metatarsals of the foot 4 and the unfolding of the foot and a front zone 9 c rigid, in the phalanx area, for shoes particularly intended for walking in the middle mountains (Figure 6).
  • the nerve layer 9 in a material composite with different stiffness / bending characteristics depending on the different axes and in particular presenting at the same time a great rigidity to the twist (in a direction perpendicular to the x-x 'axis) and some flexibility in bending along the axis x-x '.
  • the intermediate layer rigid or nerve 9B consists, at least in the metatarsal area, of a succession of rigid inserts 10 arranged alternately perpendicular to the axis of twist x-x 'of said sole, so as to obtain good flexibility in bending while retaining good torsional stiffness, these inserts 10 can be obtained in the same molding operation as the rest of the nerve layer 9B.
  • the inserts 10 constituting the nerve 9B are produced during of the same operation of molding this layer 9B with the contact layer 7.
  • the intermediate layer or nerve 9C has near its front part and its rear part, two recesses in an arc 11a, 11b, substantially corresponding to the ends of the sole and capable of allowing the passage of two stops 12, 13 from the contact layer 7 and on the internal faces which are stuck parts of rod 3.
  • the latter solution also has the advantage that a shoulder 14, 15 perpendicular to the external faces of the stops 12, 13 remain between them and the superior plane of the nerve 9C, so as to obtain an attachment surface intended for the installation of glacier crampons in a high mountain shoe.
  • the stops 12, 13 are also from contact layer 7, but they are the ones that have recesses respectively 12a, 13a for the passage of the nerve layer 9c which does not then presents no recess.
  • FIG. 12 shows a sole 2A in which the comfort layer 8A comprises at its rear part a heel compensated 6A obtained in a single piece with said layer 8A and replacing the outer heel 6 of the shoe 1. Therefore, the contact layer 7 has a substantially uniform thickness over its entire length.
  • the layer comfort consists of reliefs 8B obtained from material on the upper part 7a of the contact layer 7, of shape corresponding to recesses 16 of the intermediate layer or nerve 9D, which they pass through to emerge in a value equal to the thickness of the comfort layer to be obtained.
  • the 9D layer can be also simply overmolded on the contact layer 7 having these reliefs 8B.
  • the reliefs 8B consist of spikes uniformly distributed in the metatarsal and heel area. Of course, they could cover the entire surface of the foot.
  • This solution has the advantage of being able to obtain a three-layer sole according to the invention, from only two materials, the flexibility of the layer 8B comfort to be obtained depending on the density and / or the geometry of the pins component.
  • FIG. 13 shows a particular embodiment of a layer of contact 7A consisting of a plurality of zones, including a first zone peripheral 17 which corresponds to a main area of mechanical grip on the ground, a second central zone before 18 corresponding to a secondary zone holding or grip and a third central rear area 19 neutral.
  • the contact layer 7B is produced by pads attached externally to the nerve 9 in recesses 20 provided for this purpose in the latter and which are of a height less than that of the skates proper.
  • these pads 7B are distributed on either side of the axis of longitudinal torsion, in this case on either side of a central groove of a cross-country ski boot.
  • the rigid intermediate layer 9E is used for mechanical attachment of a fixing loop 21 intended to cooperate with a hinge-type fixing, with or without a reinforcement insert internal metal, said insert and / or loop 21 being overmolded in said rigid intermediate layer 9E, as described in patent application No. 91 04126 filed by the plaintiff.
  • the rigid layer can be used for any other example of mechanical attachment of an interface.
  • the rigid intermediate layer or nerve 9 can be used to a mechanical attachment of a metal insert which cooperates with the fixing of a pedal in a bicycle application, the insert being overmolded in said layer rigid intermediate 9 (example not shown in the drawings).
  • the rigid intermediate layer or nerve 9F allows mechanical attachment of studs (not shown), by screwing. To do this, threaded housings 22 are performed at the lower part of the nerve 9F.
  • the layer of contact 7, 7A, 7B with the ground is rubber having qualities of adhesion and abrasion resistance.
  • contact layer 7, 7A, 7B with the ground can be also a polyurethane or any other thermoplastic material.
  • this can be composed of a loaded or unloaded polyurethane (fiber of glass, carbon, etc.), with a loaded or unfilled polyamide, with a loaded polyethylene or not or any other thermoplastic.
  • each of the layers 7, 8, 9 of the sole 2 can extend or not extend over the entire surface of said sole (cf. for example the mode of realization of Figures 14 and 15).
  • connection of layers 7, 8, 9 to each other constituting the sole 2 is carried out by any means such as bonding, overmolding, ultrasound.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)
EP92116508A 1991-12-24 1992-09-26 Semelle de chaussure de sport multicouche Expired - Lifetime EP0548475B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9116275A FR2685173B1 (fr) 1991-12-24 1991-12-24 Semelle de chaussure de sport multicouche.
FR9116275 1991-12-24

Publications (2)

Publication Number Publication Date
EP0548475A1 EP0548475A1 (fr) 1993-06-30
EP0548475B1 true EP0548475B1 (fr) 1998-01-14

Family

ID=9420602

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92116508A Expired - Lifetime EP0548475B1 (fr) 1991-12-24 1992-09-26 Semelle de chaussure de sport multicouche

Country Status (7)

Country Link
US (2) US6079125A (cs)
EP (1) EP0548475B1 (cs)
AT (1) ATE162050T1 (cs)
CZ (1) CZ288092B6 (cs)
DE (1) DE69224050C5 (cs)
ES (1) ES2113905T3 (cs)
FR (1) FR2685173B1 (cs)

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Also Published As

Publication number Publication date
CZ288092B6 (cs) 2001-04-11
FR2685173B1 (fr) 1995-04-14
ATE162050T1 (de) 1998-01-15
ES2113905T3 (es) 1998-05-16
FR2685173A1 (fr) 1993-06-25
DE69224050C5 (de) 2008-09-25
US6079125A (en) 2000-06-27
USRE40474E1 (en) 2008-09-02
CZ305792A3 (en) 1993-07-14
DE69224050T2 (de) 1998-05-28
DE69224050D1 (de) 1998-02-19
EP0548475A1 (fr) 1993-06-30

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