EP0797937B1 - Schuhsohle mit verformbarem Gewölbe und Schuh mit einer solchen Sohle - Google Patents

Schuhsohle mit verformbarem Gewölbe und Schuh mit einer solchen Sohle Download PDF

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Publication number
EP0797937B1
EP0797937B1 EP97490005A EP97490005A EP0797937B1 EP 0797937 B1 EP0797937 B1 EP 0797937B1 EP 97490005 A EP97490005 A EP 97490005A EP 97490005 A EP97490005 A EP 97490005A EP 0797937 B1 EP0797937 B1 EP 0797937B1
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EP
European Patent Office
Prior art keywords
sole
arched
cavity
sole according
stiffening element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP97490005A
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English (en)
French (fr)
Other versions
EP0797937A1 (de
Inventor
Philippe Freychat
Nicolas Bouche
Christophe Montavon
Eric Caille
Gael Brivet
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.)
Decathlon SE
Original Assignee
Decathlon SE
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 Decathlon SE filed Critical Decathlon SE
Publication of EP0797937A1 publication Critical patent/EP0797937A1/de
Application granted granted Critical
Publication of EP0797937B1 publication Critical patent/EP0797937B1/de
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
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/1455—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form with special properties
    • A43B7/1464—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form with special properties with adjustable pads to allow custom fit
    • A43B7/1469—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form with special properties with adjustable pads to allow custom fit adjustable by selectively fastening or securing into multiple available positions
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/1405—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form
    • A43B7/1455—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form with special properties
    • A43B7/1464—Footwear with health or hygienic arrangements with foot-supporting parts with pads or holes on one or more locations, or having an anatomical or curved form with special properties with adjustable pads to allow custom fit

Definitions

  • the present invention relates to a shoe sole, in particular sports shoe and a shoe equipped with such a sole.
  • the individual's foot When walking, running or jumping, the individual's foot undergoes anatomical changes which are due to existing joints between the twenty-six bones making up the human foot and grouped into four functional groups, namely the posterior tarsus, the anterior tarsus, the metatarsals and phalanges.
  • the movements of the different parts of the feet were studied during each phase of a running cycle or Steps.
  • the foot At the end of the aerial phase, just before the impact of the heel on the ground, the foot is in slight dorsal flexion, inverted, with tibial rotation external . From the impact of the heel on the ground, the foot performs a pronation at the same time as a knee flexion and a internal rotation of the leg.
  • Calcal eversion unlocks the vault plantar and foot can adapt to the ground and absorb the shock wave.
  • the foot is then flat on the ground, supporting the total load of the individual, in eversion and abduction while the opposite member performs a pendulum movement from back to front.
  • the propulsion phase follows which starts from the moment the heel takes off from the ground and lasts until the end of support.
  • the relief of the heel and increasing tension of the sural triceps and plantar fascia trigger foot inversion, plantar flexion and adduction.
  • the foot therefore goes into supination, with external rotation of the leg, which supports the knee and hip extension for pushing.
  • a transient passage with slight pronation allows the trajectory of the foot to be maintained before returning to supination initial preceding the next press.
  • shoes especially sports shoes, may show wear or deformation due to varied and repetitive movements of the different parts of the foot.
  • shoes fitted with such insoles cannot provide the user with all the desirable comfort due to that the relative deformation of the front part with respect to the rear part of the shoe is always caused by the application of the foot which comes in abutment on the upper of the shoe.
  • the comfort of the user is significantly improved compared to the shoe whose sole is not all deformable.
  • the object of the present invention is to provide a sole for shoe which overcomes the aforementioned drawback.
  • the shoe sole of the invention which comprises in a known manner a front part and a part rear intended to respectively accommodate the forefoot and the heel and a intermediate part of reduced width between the front and rear parts.
  • this sole further comprises a vaulted part which is intended to be in contact with the internal arch of the user, arched part which is in progressive elevation from the intermediate, front and rear parts to a given height h , above the plane of the lower faces of said parts.
  • arched and intermediate parts are made of deformable materials so that a crushing of the arched part, reducing the height of the elevation thereof, causes an external pivoting of the front part and an elongation of the sole and that an internal pivoting of the front part causes an elevation of the arched part and a shortening of the sole.
  • the part arched sole forms a sort of bellows which is constantly in contact with the arch of the user and who is able to follow the movements in height thereof, said movements correlatively causing the internal and external pivoting of the part front with respect to the rear part, along a pivot axis which is at level of the intermediate part and which is therefore offset laterally by relative to the longitudinal axis of the sole; it is this offset of the axis which is causing the elongation of the sole during external pivoting and its shortening during internal pivoting.
  • the sole according to the present invention plays an active role in the relative mobility of the front and rear parts thanks to the action of the arch on the deformable arched part of the sole.
  • the difference in height of the arched part between the external pivoting and internal pivoting is around 15mm.
  • the arched part is either a foam microcellular density between 0.15 and 1.3, for example in polyurethane, ethyl vinyl acetate or rubber.
  • the sole has a wear pad which is reported at least under the front and rear parts and preferably under the only front, rear and intermediate parts.
  • on the underside of these can be arranged with wear flanges, in particular in the same deformable material.
  • the front parts, rear, intermediate and arched sole form a whole monobloc made of the same deformable material.
  • this monobloc assembly comprises under the arched part raised notches constituting the protective wear flanges.
  • a shoe comprising a sole, the front part of which has a certain degree of mobility with respect to the rear part and which includes a stiffening element of this sole.
  • this element stiffening is shaped so as to allow the pivoting of the front part with respect to the rear part around a vertical axis located substantially at the level of the calcaneo-cuboid joint, while preventing or limiting front-rear flexion of the sole as well as torsion of its front part with respect to its rear part. According to indications given in this document, it is under these conditions that the shoe provides the user with the best comfort while respecting natural movements of the foot when walking, running or jumping.
  • the stiffening element is a flat, rigid element, having a narrowed shape in the central part and flared at its ends, presenting a longitudinal axis of symmetry, said stiffening element being arranged, thanks to a flexible housing, in a cavity in the sole.
  • This cavity has a shape similar to that of the stiffening element, with a longitudinal axis of symmetry which is arranged along the longitudinal axis of the heel, when the shoe is at rest.
  • the narrowed central part of the stiffening element is relatively adjusted inside the housing while on both sides of the flared ends are reserved free spaces allowing the pivoting of the front and rear parts of the sole with respect to the stiffening element.
  • the sole of the invention may include a stiffening element, flat and rigid, having a narrowed shape in central part and flared at its ends and housed in an excavated cavity in the sole.
  • the central part of the stiffening element is arranged at the intermediate part reduced width of the sole; more the stiffening element and the cavity which serves as a housing have an asymmetrical shape with a flared end which extends widely in the rear part of the sole, a side wall of the cavity substantially along the contour of the part arched sole.
  • the flared end disposed in the rear part of the sole is perfectly adjusted in the cavity, so that free spaces are formed on either side of the element of stiffening only in the flared end of the cavity at the level of the front part of the sole.
  • Either the cavity is closed by a wear pad, which is attached under the front, rear and middle parts of the sole, in which case the stiffening element is not visible.
  • the cavity is closed with transparent plastic and the wear pad has a window at the level of said plastic.
  • the stiffening element can itself be housed in a plastic box, transparent and deformable, having the shape of the cavity and fitted properly therein.
  • the sole can have a wear pad made up of two separate parts, attached respectively under the front part and the rear part, each covering partially the plastic case so as to leave partly visible the stiffening element.
  • the sole 1 for shoe and in particular for shoe of sport which is the subject of the invention is characterized in that it comprises a arched part 2 which is intended to be in contact with the arch of the foot the user and which is made of a deformable material capable of allowing this arch of the foot substantially marrying the different configurations taken by the arch of the foot during the various movements of the foot during different phases of walking, running or jumping and correlatively cause the external and internal pivoting of the part front of the sole with respect to its rear part.
  • the arched part is disposed between the front part 3 and the rear part 4 of the sole 1 intended to accommodate the forefoot and the heel of the user; it is also on the side of the intermediate part 5 which is the part of reduced width I between the front part 3 and the rear part 4 of the sole 1.
  • the arched part is in progressive elevation from the front, rear and intermediate parts to a determined height h above the plane formed by the lower faces 3 a , 4 a and 5 has front parts 3, rear 4 and intermediate 5 sole 1.
  • the whole of the sole 1, constituted by the arched part 2, the front part 3, rear part 4 and intermediate part 5 is a monobloc assembly formed in a deformable material, for example a micro-cellular foam preferably having a density between 0.15 and 1.3 or a rubber.
  • the micro-cellular foam constituting the entire sole 1 was an EVA foam (ethyl vinyl acetate) or possibly polyurethane.
  • the sole 1 is provided with a wear pad 7 covering the lower faces 3 a , 4 a and 5 has front 3, rear 4 and intermediate 5 parts, but not covering the lower face 2 has arched part 2.
  • the wear pad could possibly also cover the underside of the arched part as long as it does not alter substantially the deformability properties which are required in the context of the present invention.
  • This wear pad 7 is, conventionally, in particular in rubber.
  • the protection of the lower face 2 a of the vaulted part 2 can be obtained by forming therein protective flanges 8 which consist of notches formed in the material constituting this vaulted part 2.
  • the intermediate part 5 has a width which is variable in the thickness of the sole, being the smallest ( I ) at the level of the lower face 5 a of the sole.
  • This arrangement appears clearly in FIG. 3.
  • the rounding of the upright 21 opposite to the arched part 2 makes it possible to avoid the phenomena of buckling of the material constituting the intermediate part 5 during pivoting along the axis 6.
  • the sole 1 In order to provide the sole 1 with relative flexural rigidity front, rear, that is to say along a transverse horizontal axis 9, and in torsion of its front part 3 relative to its rear part 4, that is to say around a longitudinal axis 10, the sole 1 is equipped with a stiffening 11 which is housed in a cavity 12 formed in the face lower part of the intermediate part 5 and partially of the front parts 3 and rear 4.
  • the stiffening element 11 is a flat, rigid element, which has a shape narrowed in its central part 13 and which widens towards its ends 14 and 15 respectively in the front 3 and rear 4 parts of the sole.
  • the cavity 12 has a side wall 12 a which runs along and is substantially parallel to the edge 2 a of connection of the arched part 2 with the front 3, intermediate 5 and rear 4 parts.
  • the end walls 12 b of the cavity 12, corresponding to the flared ends of the latter are curved, with a concave shape of constant curve, substantially centered on the pivot axis 6.
  • this pivot axis 6 is located along the narrowest width I of the intermediate part 5 of the sole 1.
  • the cavity 12 and the element stiffening 11 are asymmetrical, with their flared ends which do not are not arranged in the extension of one another but which extend in the front 3 and rear 4 parts so as to occupy a large portion of its width, which promotes rigidity in sole twist 1.
  • the stiffening element 11 is in the example illustrated, adjusted exactly in the cavity 12 at its central part 13 and its flared end 15 opening into the rear part 4 of the sole 1.
  • its flared part 14 opening into the front part 3 of the sole 1 has a less pronounced flare than that of the cavity in so that free spaces 16 and 17 are provided on either side of the stiffening element 11 in the end of the cavity 12 formed in the front part 3 of the sole 1.
  • Figures 4 to 9 illustrate the behavior of the sole 1 which has just been described during natural movements of the foot during different phases of walking, running or jumping.
  • Figures 4 and 7 show the configuration of the sole 1 after the impact of the heel on the ground, when the foot is flat with the full load of the weight of the individual distributed only on this foot, while the opposite member performs his pendulum movement from back to front.
  • there is a crushing of the arch of the foot which correlatively causes the crushing of the arched part 2 of the sole 1, reducing the elevation of the latter to a height h 0 .
  • the flattening of the arched part 2 causes at the same time a relative elongation of the sole 1 whose length L 0 is greater than the length L of the sole at rest illustrated in FIGS. 5 and 8.
  • Figures 6 and 9 illustrate the movement of the foot during the propulsion phase, i.e. when the heel takes off from the ground until the end of the support and entry into the air phase proper. During this phase, there is a plantar flexion, the arch of the foot digging deeper.
  • the heightening of the arched part 2 also causes a reduction in the length L 1 of the sole which is then less than the length L of the sole at rest. This decrease is consistent with the natural configuration of the foot during this phase.
  • a sole is produced which is able to perfectly fit the configuration of the foot during the various movements of the latter on occasion walking, running or jumping, without friction or friction particular.
  • the elevation difference between the crushing and the elevation of the vaulted part is of the order of 15mm.
  • the shoe 18 which is equipped with such a sole 1 has a rod 19 which covers the foot proper from the outline of the sole 1. So that the rod 19 is not an obstacle to the relative displacement of the front 3 and rear 4 parts of the sole 1, it is provided that said rod 19 is equipped with bellows 20, in particular elastic, able to absorb the effects of pivoting according to arrows F and G of the rod 19 caused by the corresponding pivotings of the sole 1.
  • the cavity 12 has been closed by applying the wear pad 7 to the front parts 3, rear 4 and intermediate 5 of the sole 1.
  • This wear pad being usually rubber is not transparent or translucent and the stiffening element 11 is therefore not visible.
  • a transparent plastic plate If you want to make it visible to the user, it is possible to close the cavity 12 by a transparent plastic plate and create a window to the right of said plate, either by implementing a shoe one-piece wear with a recessed opening acting as a window either by implementing a wear pad in two parts, covering one the front part and the other the rear part of the sole, the interval between the two parts forming a wear pad acting as a window.
  • a plastic housing transparent and deformable which is fitted in the cavity 12, as taught in the prior document WO.95 / 06419. The above window will allow the stiffening element to be seen through a face of the case in question.
  • the present invention is not limited to the embodiment which has just been described by way of non-exhaustive example.
  • the deformable sole with arched part can be implemented with or without element of stiffening. Furthermore the conformation and the function of the element of stiffening can also be different from those just described.

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  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Claims (12)

  1. Schuhsohle, insbesondere für einen Sportschuh, die einen vorderen Bereich (3) und einen hinteren Bereich (4), die je den Vorderfuß bzw. die Férse aufnehmen, und einen Mittelbereich (5) verringerter Breite (l) zwischen dem vorderen (3) und dem hinteren Bereich (4) aufweist, dadurch gekennzeichnet, daß sie außerdem einen gewölbten Bereich (2) aufweist, der dazu bestimmt ist, mit der inneren Fußwölbung des Benutzers in Kontakt zu stehen und der ausgehend von den mittleren (5), vorderen (3) und hinteren Bereichen (4) progressiv bis auf eine gegebene Höhe h oberhalb der Ebene der Unterseiten (5a, 3a, 4a) der Bereiche (5, 3, 4) ansteigt, und daß der gewölbte Bereich (2) und der Zwischenbereich (5) aus derart verformbaren Materialien bestehen, daß ein Zusammendrücken des gewölbten Bereichs, das die Höhe (h) dessen Anstiegs verringert, ein Schwenken (F) des vorderen Bereichs (3) nach außen bewirkt, und daß ein Schwenken (G) des vorderen Bereichs (3) nach innen eine Überhöhung des gewölbten Bereichs bewirkt.
  2. Sohle nach Anspruch 1, dadurch gekennzeichnet, daß der Höhenunterschied des gewölbten Bereichs zwischen dem maximalen Schwenken nach außen und dem maximalen Schwenken nach innen etwa 15 mm beträgt.
  3. Sohle nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß der gewölbte Bereich (2) aus einem mikrozellförmigen Schaum besteht, dessen Dichte zwischen 0,15 und 1,3 liegt.
  4. Sohle nach einem der Ansprüche 1 oder 2, dadurch gekennzeichnet, daß der gewölbte Bereich (2) aus Kautschuk ist.
  5. Sohle nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß sie einen Abnutzungsplatte (7) aufweist, die zumindest unter den vorderen (3) und hinteren Bereich (4) angesetzt ist.
  6. Sohle nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß an der Unterseite des gewölbten Bereichs (2) Abnutzungswülste (8) angeordnet sind, die insbesondere aus dem gleichen verformbaren Material sind.
  7. Sohle nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß der vordere (3), der hintere (4), der Zwischen(5) und der gewölbte Bereich (2) eine einstückige Einheit bilden, die aus dem gleichen verformbaren Material hergestellt ist.
  8. Sohle nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß sie ein flaches und steifes Versteifungselement (11) aufweist, das im mittleren Bereich (13) schmaler und an seinen Enden (14, 15) breiter ist und sich in einem Hohlraum (12) befindet, dadurch gekennzeichnet, daß der Mittelbereich (13) des Versteifungselements (11) in Höhe des Zwischenbereichs (5) verringerter Breite (1) angeordnet ist und daß das Versteifungselement (11) und der Hohlraum (12), der ihm als Sitz dient, eine asymmetrische Form mit einem verbreiterten Ende aufweisen, das sich weiträumig im hinteren Teil (4) der Sohle (1) erstreckt, wobei eine Seitenwand (12a) des Hohlraums (12) im wesentlichen am Umfang des gewölbten Bereichs (2) entlang verläuft.
  9. Sohle nach Anspruch 8, dadurch gekennzeichnet, daß das verbreiterte Ende (15) des Versteifungselements (11), das sich im hinteren Bereich (4) der Sohle (1) befindet, perfekt in den Hohlraum (12) eingepaßt ist, so daß Freiräume (16, 17) zu beiden Seiten des Versteifungselements (11) nur in dem verbreiterten Ende des Hohlraums (12) ausgebildet sind, das sich in Höhe des vorderen Bereichs (3) der Sohle (1) befindet.
  10. Sohle nach den Ansprüchen 5 und 8 oder 5 und 9, dadurch gekennzeichnet, daß der Hohlraum (12) von einem transparenten Kunststoff verschlossen wird und die Abnutzungsplatte (7) in Höhe dieses Kunststoffs ein Fenster aufweist.
  11. Sohle nach Anspruch 10, dadurch gekennzeichnet, daß das Versteifungselement in einem transparenten und verformbaren Kunststoffgehäuse angeordnet ist, das die Form des Hohlraums hat und in diesen eingepaßt ist.
  12. Schuh, insbesondere Sportschuh, der mit einer Sohle nach einem der Ansprüche 1 bis 11 ausgestattet ist, dadurch gekennzeichnet, daß er eine Schuhoberseite aufweist, die den eigentlichen Fuß ausgehend vom Umfang der Sohle umgibt und mit seitlichen, insbesondere elastischen Bälgen versehen ist, die im wesentlichen in Höhe des Zwischenbereichs angeordnet sind.
EP97490005A 1996-03-29 1997-03-20 Schuhsohle mit verformbarem Gewölbe und Schuh mit einer solchen Sohle Expired - Lifetime EP0797937B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9604205 1996-03-29
FR9604205A FR2746605B1 (fr) 1996-03-29 1996-03-29 Semelle pour chaussure a voute deformable et chaussure equipee d'une telle semelle

Publications (2)

Publication Number Publication Date
EP0797937A1 EP0797937A1 (de) 1997-10-01
EP0797937B1 true EP0797937B1 (de) 2000-10-11

Family

ID=9490884

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97490005A Expired - Lifetime EP0797937B1 (de) 1996-03-29 1997-03-20 Schuhsohle mit verformbarem Gewölbe und Schuh mit einer solchen Sohle

Country Status (12)

Country Link
EP (1) EP0797937B1 (de)
CN (1) CN1215313A (de)
AR (1) AR006368A1 (de)
AT (1) ATE196833T1 (de)
BR (1) BR9708467A (de)
CZ (1) CZ313498A3 (de)
DE (1) DE69703262D1 (de)
ES (1) ES2152641T3 (de)
FR (1) FR2746605B1 (de)
HU (1) HUP9902422A2 (de)
PL (1) PL329131A1 (de)
WO (1) WO1997036509A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE202006004030U1 (de) 2006-03-14 2006-05-18 Hidde, Axel R., Dr. Ing. Stoßdämpfender pumpender dampfdurchlässiger wasserdichter Schuh
ATE450165T1 (de) * 2006-05-16 2009-12-15 M Christophe Otte STOßDÄMPFENDE SOHLE UND SCHUHWERK MIT STOßDÄMPFENDER SOHLE
WO2021035363A1 (en) * 2019-08-30 2021-03-04 Lululemon Athletica Canada Inc. Segmented sole for footwear

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05199907A (ja) * 1992-01-28 1993-08-10 Asahi Corp 靴 底
FR2688121B1 (fr) * 1992-03-09 1997-11-28 Decathlon Production Chaussure de sport.
JP2864208B2 (ja) * 1993-12-15 1999-03-03 広島化成株式会社 靴 底

Also Published As

Publication number Publication date
FR2746605A1 (fr) 1997-10-03
ATE196833T1 (de) 2000-10-15
AR006368A1 (es) 1999-08-25
HUP9902422A2 (hu) 1999-11-29
BR9708467A (pt) 1999-04-13
EP0797937A1 (de) 1997-10-01
FR2746605B1 (fr) 1998-06-12
CN1215313A (zh) 1999-04-28
CZ313498A3 (cs) 1999-03-17
WO1997036509A1 (fr) 1997-10-09
ES2152641T3 (es) 2001-02-01
PL329131A1 (en) 1999-03-15
DE69703262D1 (de) 2000-11-16

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