WO2016097606A1 - Outer sole for footwear, comprising damping studs - Google Patents

Outer sole for footwear, comprising damping studs Download PDF

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Publication number
WO2016097606A1
WO2016097606A1 PCT/FR2015/053549 FR2015053549W WO2016097606A1 WO 2016097606 A1 WO2016097606 A1 WO 2016097606A1 FR 2015053549 W FR2015053549 W FR 2015053549W WO 2016097606 A1 WO2016097606 A1 WO 2016097606A1
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WIPO (PCT)
Prior art keywords
pad
sole
damping
length
sole according
Prior art date
Application number
PCT/FR2015/053549
Other languages
French (fr)
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WO2016097606A9 (en
Inventor
Cécile LECLAND
Original Assignee
Damart-Serviposte
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
Priority to FR1462529 priority Critical
Priority to FR1462530A priority patent/FR3029749B1/en
Priority to FR1462532A priority patent/FR3029750B1/en
Priority to FR1462530 priority
Priority to FR1462529A priority patent/FR3029748B1/en
Priority to FR1462532 priority
Application filed by Damart-Serviposte filed Critical Damart-Serviposte
Publication of WO2016097606A1 publication Critical patent/WO2016097606A1/en
Publication of WO2016097606A9 publication Critical patent/WO2016097606A9/en

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Classifications

    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00Soles; Sole and heel units
    • A43B13/14Soles; Sole and heel units characterised by the constructive form
    • A43B13/22Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer
    • A43B13/223Profiled soles
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00Soles; Sole and heel units
    • A43B13/14Soles; Sole and heel units characterised by the constructive form
    • A43B13/22Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer
    • A43B13/24Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer by use of insertions
    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00Soles; Sole and heel units
    • A43B13/14Soles; Sole and heel units characterised by the constructive form
    • A43B13/22Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer
    • A43B13/24Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer by use of insertions
    • A43B13/26Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer by use of insertions projecting beyond the sole surface

Abstract

The invention relates to an outer sole (1) for footwear, having in its heel part (10) several housings (100) which each have an opening (100a) in a lower surface (101) of the sole that is intended to be in contact with the ground, and several damping studs (102) which are positioned in said housings (100) at a rate of at least one damping stud (102) per housing (100) and which, when they are not deformed, protrude partially from said lower surface (101), each damping stud (102) being surrounded around all or part of its periphery by said lower surface (101) and being elastically deformable so as to be able to be compressed at least partially inside the corresponding housing (100). Each damping stud (102) has, at the apex of its protruding part (102a), a surface (102b) for coming into contact with the ground, said surface (102b) being continued around its entire periphery and towards the inside of the stud (102) by a concave curved surface (102c) which is elastically deformable and which allows the damping stud (102) to be squashed with a reduction in the curvature of said concave curved surface (102c).

Description

OUTSOLE SHOE WITH PLOTS OF AMORTIZATION

Technical area

The present invention relates to an outer sole of shoe, as well as equipped with this shoe outsole, the sole and the shoe being more particularly adapted to facilitate walking of a person whose foot has undergone physiological changes and / or anatomical related to aging.

BACKGROUND

Studies on the foot of aging have shown that the natural changes of the foot occurs with age:

- the fatty deposits in the heel stiffens with age.

- deformations, type hallux valgus, toe or claw hammers, appear at the forefoot.

- the arch at the central portion of the foot collapses causing pronation of the foot, and a widening of the foot that can lead to a flat foot.

The fatty deposits at the heel is a biological system for shock absorption when the heel comes into contact with the ground. The stiffening of this fatty deposits in the heel due to a decrease of collagen, a decrease in elasticity of the fibers, as well as a decrease in the presence of water and fat. This stiffening causes a reduction of the natural absorbency of the foot, which detrimentally results in the impact of the heel with the ground by a shock wave propagating along the faster leg.

In addition, a gait analysis seniors helped to highlight the changes with the years of the anatomy and physiology of the foot led to a pose of the foot on the ground (heel / ground attack) more flat .

The deformations at the front of the foot, hallux valgus type, toe claws cause a limitation of the bending angles of the toes, increase the balance disorders, and modify the schema ( "pattern") of travel, this which translates in practice by a place of not more limited and less fluid and a lower capacity for forward propulsion.

It has been proposed in US patent application US 2013/0263469 of an outdoor shoe sole, still commonly referred outsole, suitable for running. The outsole has in its heel portion and in its front portion several housings, each having an opening in a bottom surface of the sole intended to be in contact with the ground, and a plurality of hollow studs deformable which are positioned partially in said housing at a rate of at least one stud per housing, and which protrude with respect to said bottom surface. Each deformable stud is surrounded on all or part of its periphery by said bottom surface, and is elastically deformable so as to be filled at least partially compressed inside the corresponding housing upon contact of the pad with the ground. In this sole, each stud is designed so as to deform upon impact with the ground by driving at least one vertical strain and a horizontal strain (see Fig. 2c) which is accompanied by a shearing effect horizontal the pad.

The outsole of shoe described in US patent application 2013/0263469 US can certainly be adapted for running, but on the other hand is not suitable for a foot that has been distorted by aging. More particularly, the deformation pads, including a horizontal shearing effect, causes instability for the foot when walking. Therefore, the deformation of the studs makes this inappropriate shoe sole for walking of a person whose foot has undergone physiological changes and / or anatomical related to aging.

Summary of the Invention

A first main object of the invention is to provide a new outer shoe sole having in its heel portion of the damping pads projecting and elastically deformable. A more particular object of the invention is to provide a novel shoe outsole having in its heel portion, damping pads projecting and elastically deformable, which facilitate a stable operation with effective shock absorption when heel strike with the ground, said tread being more particularly adapted for the feet which fatty deposits in the heel is stiffened over the years.

This new outsole shoe is particularly, but not exclusively, suitable for a foot having undergone physiological changes and / or anatomical related to aging.

Thus, in a first aspect, the invention relates to a shoe outsole having in its heel portion several housings, each having an opening in a bottom surface of the sole intended to be in contact with the ground, and a plurality of pads damping which are partly positioned in said housing, a proportion of at least one damping pad per unit, and which, when not deformed, partially projecting with respect to said bottom surface, each pad damping being surrounded over all or part of its periphery by said bottom surface, and being elastically deformable so as to be filled at least partially compressed inside the corresponding housing, each damping pad having, in top portion projecting a contact surface with the ground, which extends over its entire periphery and inwardly of the pad area by co urbe concave, which is elastically deformable and which allows crushing of the damping pad with a decrease in the curvature of said concave curved surface.

According to a second aspect, the invention also relates to a shoe outsole having in its heel portion several housings, each having an opening in a bottom surface of the sole intended to be in contact with the ground, and a plurality of pads damping which are partly positioned in said housing, a proportion of at least one damping pad per unit, and which, when not deformed, partially projecting with respect to said bottom surface, each pad of damping being surrounded over all or part of its periphery by said bottom surface, and being adapted to be elastically compressed at least partially inside the corresponding recess without undergoing lateral shear and without undergoing any lateral displacement.

According to a third aspect, the invention also relates to a shoe outsole having in its heel portion several housings, each having an opening in a bottom surface of the sole intended to be in contact with the ground, and a plurality of pads damping which are partly positioned in said housing, a proportion of at least one damping pad per unit, and which, when not deformed, partially projecting with respect to said bottom surface, each pad of damping being surrounded over all or part of its periphery by said bottom surface, and being adapted to be elastically compressed at least partially inside the corresponding recess without undergoing lateral shear and without undergoing any lateral displacement.

According to a fourth aspect, the invention also relates to an outer sole of footwear comprising, in its heel portion, a lower surface intended to be in contact with the ground and a plurality of damping pads which are at least in part projecting relative to said bottom surface, and which are elastically deformable. The heel portion is divided laterally by a median longitudinal axis (M) into an inner heel area (ZI) and an external heel zone (ZE), and the sole comprises one and / or other characteristics (a) and (b):

(A) the maximum longitudinal distance (U), measured longitudinally along the median longitudinal axis (M), between the rear part of the heel area and the centroid of the damping pad which is located in the inner heel area (ZI) and which is, in the direction of the central longitudinal axis (M), the farthest away from said rear portion of the heel area, is less than the maximum longitudinal distance (L e) measured longitudinally along the median longitudinal axis (M), between the rear part of the heel area and the centroid of the damping pad which is located in the outer heel zone (ZE), and that is, in the direction of the central longitudinal axis (M), the further from said rear portion of the heel area;

and or

(B) damping pads, heel in the outer zone (ZE), are distributed such that over the damping pad is remote from the rear portion of the heel area, the greater the lateral distance (LD) between the centroid of such sinking pad of said central longitudinal axis (M) is important.

A second main object of the invention is to provide a novel shoe outsole having in its front part studs projecting and elastically deformable, facilitating propulsion when walking.

A more particular object of the invention is to provide a new outer sole of footwear comprising, in its front part, the studs projecting and elastically deformable, that facilitate propulsion during walking of a person whose foot suffered physiological changes and / or anatomical related to aging, and in particular with its front foot suffered deformations, type hallux valgus, toe or claw hammers.

This new outsole shoe is particularly, but not exclusively, suitable for a foot having undergone physiological changes and / or anatomical related to aging.

Thus, according to a fifth aspect, the invention relates to a sole comprising, in its front portion several pads before, which are elastically deformable, which in the undeformed state are at least partly projecting from a lower surface of the front part intended to be in contact with the ground and which allow to promote the propulsion of the foot forward when they return elastically to their original shape. This sole is characterized by an inner metatarsal phalangeal segment ([CQ]) and an outer segment metatarsal phalangeal ([CO]) which intersect at an intermediate point metatarsal phalangeal (C); a first pad before is positioned on the outer segment metatarsal phalangeal ([CO]) at a point (01) located relative to the intermediate point metatarsal phalangeal (C) at a distance equal to one quarter of the length of segment external metatarsal phalangeal ([CO]); a second pad before is positioned substantially in the longitudinal direction parallel to the central longitudinal axis (M) of the heel portion of the sole, and between the front end of the sole and the first back pad; a third stud is positioned before, on the inner metatarsal phalangeal segment ([CQ]) at a point (Q1) located relative to the intermediate point metatarsal phalangeal (C) at a distance equal to one third of the length of segment inner metatarsal phalangeal ([CQ]); a fourth terminal before is positioned substantially in the longitudinal direction parallel to the central longitudinal axis (M) of the heel portion (10) of the sole, and between the front end of the sole and the third back pad.

The invention also relates to a shoe, particularly suitable for a person whose foot has undergone physiological changes and / or anatomical related to aging, and having an outer abovementioned outsole.

BRIEF DESCRIPTION OF FIGURES

The characteristics and advantages of the invention appear more clearly on reading the detailed description below of a particular embodiment of the invention, wherein particular embodiment is described by way of nonlimiting example and non-exhaustive of the invention, and with reference to the accompanying drawings in which:

- Figure 1 is a side view of an exemplary shoe provided with an outer sole,

- Figure 2 is a bottom view of a particular embodiment of an outsole according to the invention.

- Figure 3 is a cross-sectional view of the heel portion of the outsole of Figure 2, at a rear damping pad and the III-III cutting plane of FIG 2, the stud rear cushion being in the undeformed state.

- Figure 4 is a cross-sectional view of the rear damping pad of Figure 3 and its housing, when the rear cushion pad is deformed upon contact with the ground.

- Figure 5 is a cross sectional view of the front part of the outsole of Figure 2, at a pad before and in the section plane V-Vde Figure 2, the stud before being on non-deformed state.

- Figure 6 is a cross sectional view of the pad before the Figure 5 and its housing, when the back pad is deformed upon contact with the ground.

- Figure 7 is a top view of the outsole of the sole of Figure 2 and a foot positioned relative to said sole.

- Figure 8 is a top view of the outsole of the sole of Figure 2 on which are represented the metatarsal phalangeal outer and inner segments.

detailed description

There is shown in Figure 1 an example of a shoe provided with an outer sole 1, also known as outsole. Referring to Figure 2, which shows a bottom view of a particular variant of outsole 1 according to the invention, the sole 1 can in conventional manner be divided into three parts: a rear portion 10, commonly called heel portion, a central portion 12 corresponding to part of the arch of the foot support, and a front part 1 1 corresponding to the forefoot.

The outsole 1 is particularly adapted to facilitate the operation of a foot having undergone anatomical and physiological changes associated with aging;

Part heel 10

Referring to Figures 2 and 3, the outer sole 1 is provided in its heel portion 10: a first layer of material C1 having a plurality of housing 100 through which each have a 100a opening in a bottom surface 101 of the first layer of material C1; this lower surface 101 of the C1 material layer forms the bottom surface of the sole intended to be in contact with the ground S, and

- a second layer of material C2, which is positioned above the first layer C1, and in which are formed a plurality of damping pads 102, for example by molding; these damping pads 102 are elastically deformable and are positioned in said recesses 100, at a rate of at least one stud 102 by housing 100.

Referring to Figure 2, in the undeformed state, each damping pad 102 is a solid member, formed protruding in relation to the underside 102e of the layer of material and C2 passes through the housing 100 corresponding 100 , partially projecting with respect to said bottom surface 101, and being surrounded on all or part of its periphery by said lower surface 101.

Preferably, the major portion of each damping pad 102 is positioned within the housing 100 corresponding, and only a small part of the pad 101 in the non défomé state protrudes with respect to said bottom surface 101.

In the particular variation of Figure 2, all the cushioning pads 102 are not identical, and in particular do not have the same dimension. In another variant, the damping pads in the heel portion 10 could be identical and have the same dimension.

Referring to Figure 4, each damping pad 102 is elastically deformable so as to be filled at least partially compressed inside the housing 100 corresponding under the effect of a compressive force F (Figure 4) perpendicular to the underside 101 of the sole, particularly upon contact with pressure of the damping pad 102 on a rigid flat surface S such as a hard floor. More specifically, referring to Figures 3 and 4, and unlike the deformable pads of the US application US Application 2013/0263469, each damping pad 102 is adapted to be elastically compressed at least partially within the corresponding housing 100, without undergoing lateral shear and without undergoing lateral displacement, ie without undergoing shear and without undergoing displacement in a plane substantially parallel to the underside 101 of the sole. advantageously thereby obtaining a damping without risk of instability for the foot when walking.

Each damping pad 102 comprises, at the top of its projection portion 102a, a contact surface with the soil 102b, which extends over its entire periphery and inwardly of the pad by a concave curved surface 102c. This concave curved surface 102c is resiliently deformable and allows a compression of the pad 102 with a decrease in the curvature of said concave curved surface 102c in response to a compressive force F (Figure 4) perpendicular to the bottom face 101 of the sole, particularly upon contact with pressure of the damping pad 102 on a rigid flat surface S, such as a hard floor.

This specific deformation of each damping pad 102 resulting from the presence of this concave curved surface 102c elastically deformable allows upon contact of the heel with the ground to effectively absorb the shock without creating instability in the area heel, and so can effectively protect the heel area against shocks when walking.

More particularly, but not necessarily, the damping pads

102 are designed so that said deformation of the concave curved surface 102c (crushing of the pad 102 with a decrease in the curvature of said surface) is obtained at least when the sole undergoes static, relative to a rigid S flat horizontal surface a vertical compression F (that is to say compression at right angles to the underside 101 of the sole) over the entire surface of the sole under a load of at least 60kg, more particularly under a load of between 60Kg and 180kg.

Preferably, in order to improve shock absorption and facilitate compression of each damping pad 102 and crushing with a decrease in the curvature of said concave curved surface 102c, the contact 102b surface with the floor of a damping pad 102 extends over its entire periphery and outwardly of the stud 102 by a convex curved surface 102d (Figures 3 and 4).

More particularly, this convexly curved surface 102d with a damping pad 102 connects the underside of said layer C2 material 102b contact surface with the ground of the damping pad.

More particularly, at least the projecting portion 102a of a damping pad in an undeformed state, which is protruding with respect to said bottom surface 10, form a solid of revolution having a central axis A of symmetry substantially perpendicular said lower surface 101 (figures 1 and 3).

Each damping pad 102 can thus be deformed symmetrically about its central axis A.

In the illustrated particular embodiment, the concave curved surface 102c form a central basin at the top of the stud 102 centered on axis A.

Each damping pad may more particularly be made by molding in an elastomeric material, more particularly a thermoplastic elastomer material (TPE) having an appropriate hardness, and preferably of a thermoplastic elastomer polyurethane (TPU) expanded or unexpanded .

By way of non-limiting example of the invention, each damping pad

102 in the heel portion 10 was made of a thermoplastic polyurethane elastomer (TPU) having a hardness of about 30-55 Shore A, and preferably from about 30 to 35 shore A. Referring to Figure 3, the diameter D1 each damping pad 102 to the undeformed state (largest dimension of the pad in a plane parallel to the underside 101 of the sole) was between 7mm and 12mm. The maximum distance d between the contact surface 102b with the ground S and the underside 101 of the sole was less than 1 mm, more especially substantially equal to 0.5mm. The diameter D2 of the concave curved surface 102c in the undeformed state (Figure 3) was about 4mm.

More specifically, referring to Figure 4, the space in the housing 100 around a damping pad 102 is sufficiently large so that the portion 102a of said damping pad, which protrudes with respect to said bottom surface 101 prior to deformation of the pad, is able to deform elastically in contact with the ground S without undergoing radial compression.

More specifically, referring to Figure 4, the damping pad 102 is elastically deformable so as to be compressed completely within the corresponding housing 100.

More particularly, but not necessarily, the cushioning pads 102 are designed so as to be able to be compressed completely within the housing 100 when the corresponding sole undergoes static, relative to a rigid flat, horizontal surface S, a vertical compression F (that is to say compression at right angles to the underside 101 of the sole) over the entire surface of the sole under a load of at least 60kg, preferably under a load of between 60Kg and 180Kg.

More specifically, referring to Figure 2, the number of damping pads 102 is the same on either side of a median longitudinal axis M of the heel portion 10, which laterally divides the heel portion of the sole 10 into an inner zone ZI heel and an outer heel area ZE. This arrangement enables to contribute to a flat heel strike the ground, which is better suited to walking a foot having undergone anatomical changes and / or physiological aging related.

More particularly, the damping pads 102 are positioned in the inner zone ZI and the outer zone ZE so as to improve the attack flat and to improve the foot roll. They have for this purpose one or the other and / or any of the following positioning of the technical characteristics: (a) the damping pad referenced 102-I is the damping pad which is located in the area inner heel ZI, and is, in the direction of the central longitudinal axis M, is farthest from the rear portion 10a of the heel area 10. the damping pad referenced 102-E is the damping pad, which is located in the outer heel region ZE, which is, in the direction of the central longitudinal axis M, the further from the rear portion 10a of the heel area 10. the maximum longitudinal distance L, measured longitudinally along the central longitudinal axis M between said farthest pad 102-1 and the rear portion 10a of the heel area 10 is less than the maximum longitudinal distance L e longitudinally measured along the central longitudinal axis M, between said pad 102-e the farthest and the rear portion 10a of the heel region 10.

(B) damping pads 102, in the outer heel region ZE, are distributed such that over the damping pad 102 is moved away from the rear portion 10a of the heel zone 10, the more the lateral distance DL between this damping pad 102 of said central longitudinal axis M is important.

(C) said maximum longitudinal distance L is less than 20% of the total length L of the sole, and preferably less than 17% of the total length L of the sole.

(d) said maximum longitudinal distance L E is between 12% and 35% of the total length L of the sole, and preferably between 15% and 30% of the total length L of the sole.

(E) the damping pads, 102 in the outer heel region ZE, are distributed such that the LC line passing through the centers of gravity of these damping pads 102 is a curved line the concavity of which is oriented towards said axis longitudinal median M. the maximum longitudinal distance L, the maximum longitudinal distance Le, and lateral distance DL are measured from the centroid of the corresponding stud, and thereby more especially from the center of the corresponding pad in that it presents central axis of symmetry such that "the particular variant illustrated in the appended figures.

Front part 1 1

The sole 1 also includes in its front portion 1 1 1 before several pads 12, which are elastically deformable, and which in the undeformed state are projecting with respect to the lower surface 1 1 1 of the front part 1 1 for to be in contact with the ground.

More particularly the outsole 1 has in its front part 1 1:

- a first layer of material comprising a plurality of C3 housing 1 10. throught, each having an opening 1 10a in a lower surface 1 1 1 of the first layer of material C3; this lower surface 1 1 1 of the C3 material layer forms the bottom surface of the sole intended to be in contact with the ground S at the front part of the sole, and

- a second layer of material C4, which is positioned above the first layer C3, and in which are formed several studs panel 1 12, for example by molding; these pads panel 1 12 are elastically deformable and are positioned in said slots 1 10, in an amount of at least one pad 1 12 via housing 100.

During walking, when the body weight is transferred to the forefoot, each pad is compressed before contact with the ground (Figure 6). Then when the weight on each block before tablet 1 12 decreases due to the place of the step, said front stud, gets resiliently to its original shape, and due to its low compression set and its convex shape exerts on the ground a force that promotes the propulsion of the foot forward. The studs 12 people panel 1 and the function of promoting the propulsion of the foot forward when they return elastically to their original shape.

More specifically, referring to Figure 5, the top of the projecting portion 12a 1 of a pad before 1 12, in the undeformed state, forms a surface

1 12b contact the pad with the ground which is convex. More particularly, the convex contact surface 12b 1 of a pad before 1 12 is substantially spherical.

More particularly, the protruding portion 12a 1 of a pad before 1 12, which protrudes with respect to said lower surface 1 1 1 when the stud before is not deformed, form a solid of revolution having a central axis of symmetry A substantially perpendicular to said bottom surface 1 1 1.

More particularly, the sole 1 comprises in its front portion 1 1 1 several housings 10, each having an opening 1 10a in the lower surface 1 1 1 of the sole intended to be in contact with the ground. The studs panel 1 12 are positioned in said housing at a rate of at least one pad per unit. Each pad panel 1 12 is surrounded on all or part of its periphery by said lower surface 1 1 1, and is elastically deformable so as to be filled be compressed at least partially within the housing 1 10 being in a contact plot before January 12 with the ground S.

More particularly each pad panel 1 12 is a solid element and / or is adapted to be elastically compressed at least partially within the housing 1 10 being without undergoing lateral shear and without undergoing any lateral displacement.

More specifically, the pads 12 are formed panel 1 project with respect to the bottom face 102e of the layer material of C4, and the entire surface of each pad panel 1 12, in the undeformed state is convex, and preferably substantially spherical.

More particularly, the space in the housing 1 10 about a stud before 1 12 is sufficiently large that the projection 1 12a of said front pad 1 12 which is protruding with respect to said bottom surface 1 1 1 when the panel 1 pad 12 is not deformed elastically deforms in contact with the ground without being subjected to radial compression.

More particularly, each panel 1 pad 12 is elastically deformable so as to be filled completely compressed within the housing 1 10 being. The studs panel 1 12 are more particularly, but not necessarily, designed so as to be able to be compressed completely within the housing 1 when the sole 10 being subjected static with respect to a horizontal surface, a vertical compression over the entire sole surface under a load of at least 60kg, more particularly under a load of between 60Kg and 180Kg.

Each pad panel 1 12 may more particularly be made by molding in an elastomeric material, more particularly a thermoplastic elastomer material (TPE) having an appropriate hardness, and preferably of a thermoplastic elastomer polyurethane (TPU) expanded or unexpanded .

By way of non-limiting example of the invention, each damping pad 1 12 in the front part 1 1 was made of foamed TPU and had a hardness of 50-70 Shore A. The maximum distance d between the surface of contact 1 12b with the ground S and the lower surface 1 1 1 of the sole was less than 1 mm, more especially substantially equal to 0.5mm.

Referring to Figure 5, the diameter D1 (largest dimension of the pad in a plane parallel to the lower surface 1 1 1 of the sole) of a panel 1 pad 12 to the undeformed state was between 5mm and 10mm .

Positioning studs before

Referring to Figure 7, the sole 1 comprises ten pads before 1 12 which are identified more specifically by the reference numerals 1 12A-1 12D. This sole 1 is adapted to serve as outsole to a blunt shoe adapted to fit a standard foot P of length L less than the length L of the sole 1, in view of the rod 2 (Figure 1) shoe.

In the field of the manufacture of footwear, each flange is associated with a length l Lp standard foot. Depending on the type of shoe (round toe square end, pointed end, open sandal), it was found statistically an average relationship between the length L of an outer sole 1 and the length L of standard foot associated therewith . These known reports are provided in the tables below.

L / Lp - shoe or sandal closed in the front and heel Shoe Type L / Lp

round toe 1 .04

square end 1 .03

pointed tip 1 .06

Relation L and Lp - Sandal open at the heel and / or at the front (tip round, square or pointed)

Figure imgf000018_0001
In Figure 8, the limit represented by the dummy lines Lp (9%), Lp (40%) and Lp (75%) are positioned along the longitudinal axis M of the heel portion 10 at a distance respectively from in the rear part T of the P heel of the foot which is equal to 9%, 40% and 75% of Lp foot in length. The central longitudinal axis M of the heel portion 10 corresponds in practice to the longitudinal centerline of the sole at the limit Lp (9%).

The metatarsal phalangeal intermediate point C is the midpoint of the sole width Lp at the limit (75%).

The dummy line segment [CO] (between the intermediate point metatarsal phalangeal C and point O on the outer edge of the sole) is designated in the present text segment metatarsal phalangeal external. The point O is positioned on the outer edge of the sole, so that this segment external metatarsal phalangeal [CO] forms an angle of 62 ° with the longitudinal axis M ", which passes through the intermediate point C metatarsal phalangeal and which is parallel to the central longitudinal axis M of the heel portion 10.

The dummy line segment [CQ] (between the intermediate point C and point Q on the inner margin of the sole) is designated in the present text metatarsal phalangeal internal segment. The point Q is positioned on the inner edge of the sole, so that this segment internal metatarsal phalangeal [CQ] forms an angle of 78 ° with the longitudinal axis M ", which passes through the intermediate point C metatarsal phalangeal and which is parallel to the central longitudinal axis M of the heel portion 10.

Anatomy of the foot, the metatarsal phalangeal joint of the foot joins the head of the metatarsal bone at the base of the first phalanx of toe. Referring to Figure 7, the inner segment metatarsal phalangeal [CQ] corresponds in practice to a line segment connecting metatarsal phalangeal joints of the big toe and the second toe 3 4. The external metatarsal phalangeal segment [CO] corresponds in practice to a line segment connecting metatarsal phalangeal joints of the third toe 5 of the fourth toe 6, and 7 of the fifth toe.

Referring to Figure 8 the point Q1 and Q2 divide the metatarsophalangeal internal phalangie segment [CQ] into three equal parts. Q1 point is thus located relative to the intermediate point metatarsal phalangeal C at a distance equal to one third of the length of the metatarsal inner phalangeal segment [CQ], and the point Q2 is so located relative to the intermediate point metatarsal phalangeal C at a distance equal to two thirds of the length of segment inner metatarsal phalangeal [CQ]. The points O1, 02, O3 and divide the segment external metatarsal phalangeal [CO] in four equal parts. The point 01 is so located relative to the metatarsal phalangeal intermediate point C at a distance equal to one quarter of the length of the outer metatarsal phalangeal segment [CO]; point 02 is located relative to the intermediate point metatarsal phalangeal C at a distance equal to half the length of the outer metatarsal phalangeal segment [CO]; point 03 is located relative to the intermediate point metatarsal phalangeal C at a distance equal to three quarters of the length of the outer metatarsal phalangeal segment [CO].

Referring to Figure 7, the stud before 1 12C is positioned along said metatarsophalangeal inner phalangeal segment [CQ] at the point Q1, and the pad before 1 12E is positioned along said metatarsophalangeal inner phalangeal segment [CQ] at Q2 points. 1 before the stud 12A is positioned along said outer metatarsal phalangeal segment [CO] at the point 01. The pad 1 before 12G is positioned along said outer metatarsal phalangeal segment [CO] at the point 02. The stud before 1121 is positioned along said segment outer metatarsal phalangeal [CO] at the point 03. The terms "positioned level "means that the corresponding points (Q1, Q2, 01, 02, 03) is positioned near or within the area covered by the pad corresponding front (1 12C, 1 12E, 1 12A, 12G 1, 1121) without this corresponding point (Q1, Q2, 01, 02, 03) is necessarily centered with respect to the pad before associated therewith.

This means in practice that when a foot P is positioned in a shoe provided with the outer sole 1, the front pad 1 12C is positioned in the region of the metatarsophalangeal joint of the second toe 4; 12E before the stud 1 is positioned in the region of the metatarsal phalangeal joint of the big toe 3; 12A before the stud 1 is positioned in the region of the metatarsophalangeal joint of the third toe 5; 12G before the stud 1 is positioned in the region of the metatarsophalangeal joint of the fourth toe 6; the pad before 1121 is positioned in the region of the metatarsophalangeal joint of the fifth toe 7.

Referring to Figure 7, the pad 1 before 12B is positioned in a direction substantially parallel to the central longitudinal axis M of the portion 10, between the front end 1 1 a of the sole and the front pad 12A 1, and a DP distance from said first pad before 1 12A more particularly between 5% and 15% of the length of length, and preferably between 6% and 13% of the foot length Lp associated with the soleplate. It is the same pad before 1 12D with respect to the pad before 1 12C, to the pad before 1 12F relative to the pad before 1 12E to the pad before 1 12H with respect to the pad before 1 12G, and the pad before 1 12J with respect to the pad before 1 121. as a result, as well as the pads before 1 12B, 1 12D, 1 12E, 1 12H, 12 J 1 are positioned relative respectively to the pads before 1 12A, 1 12C, 1 12E , 12G 1, 1121 such that the stud before 1 12B is positioned in the region of the inter-phalangeal joint of the third toe 5, the pad 1 before 12D is positioned in the region of the inter-phalangeal joint of the second joint toe 4, the stud before 1 12F is positioned in the region of the inter-phalangeal joint of the big toe 3, the pad 1 before 12H is positioned in the region of the joint of the inter-phalangeal fourth toe 6, and the pad before 1 12J is positioned in the region of the joint of the inter-phalangeal cin quième toe 7.

Referring to Figure 8, the line that extends along the central longitudinal axis M, since the rear portion 10a of the heel portion 10 up to the central point C at the Lp limit (40%), and which extends up to the front end 1 1 a of the sole, by the inclined axis M 'passing through the intermediate point C corresponds to the unwound line of the foot during walking.

When the front foot did not undergo anatomical changes related to aging, the propulsion of the forefoot during foot of the place is done sequentially in a first phase essentially by pressing the 7 and fifth toe to the fourth toe 6 and in a second phase by pressing the big toe 3. the second toe and third toe 4 5 are thus relatively solicited. In contrast, when the forefoot underwent anatomical changes associated with aging (hallux valgus, toe or claw hammers) the foot roll is changed, so that pressing the fifth toe and the fourth 7 toe 6 is lower, and that the supporting socket is made more importantly on the second toe 4 and the third toe pads 5. the panel 1 12A, 1 12B, 1 12C and 1 12D in the second region 4 toe and third toe and 5 are important to facilitate the forward propulsion of the foot at the place of this type of foot. The front pads 12E 1 and 12F 1 in the toe region 3 also play an important role in facilitating the forward propulsion of the foot at the place of this type of foot because the support taken on the toe 3 is also important.

Preferably, as illustrated in the particular embodiment of Figure 7, the pads before 1 12E and 12F 1 in the region of the big toe 3 are advantageously larger than the pads before 1 12A, 1 12B, 1 12C and 1 12D in the region of the toe 4 second and third toe 5, so that the thrust that they exert due to their elasticity and low compression set. Similarly, the seventh pad before 1 12G and the eighth pad before 1 12H in the region of the fourth toe 6 are so big that the studs before 1 12A, 1 12B, 1 12C and 1 12D in the region of the second toe 4 and third toe 5. the ninth pad before 1121 and the tenth blocks before 1 12J are less large that the first one 12A second 1 12B, 1 12C third and fourth pads before 1 12D, and are also less larger than the seventh pad before 1 12G and the eighth pad 1 before 12H.

central portion 12

In the central portion 12, the sole 1 comprises a stiffening insert

120 (Figure 2), still commonly called "shank", which has more particularly the shape of a boomerang, which is positioned mainly in the outer region of the central portion 12.

This insert 120 is for example a plastic part.

This insert 120 connects the heel portion 10 to the front part 1 1 and allows to support the arch, so as to reduce pronation and relieve the load on the forefoot. It allows during foot roll for supporting the plantar arch by making the connection between the heel portion 10 (back of the foot) and the front portion 1 1 (forefoot) of the sole.

Claims

Outsole (1) for footwear comprising, in its heel portion (10) a plurality of housings (100), each having an opening (100a) in a bottom surface (101) of the sole intended to be in contact with the ground, and several damping pads (102) which are partly positioned in said housing (100), in an amount of at least one damping pad (102) through housing (100) and which, when not deformed, are partially projecting with respect to said bottom surface (101), each damping pad (102) being surrounded on all or part of its periphery by said bottom surface (101), and being elastically deformable so as to be filled be compressed least partially within the housing (100) corresponding, each damping pad (102) having, at the top of its projection (12a), a surface (102b) of contact with the ground, which extends over the entire its periphery and towards the within the pad (102) by a concave curved surface (102c) which is elastically deformable and which allows crushing of the damping pad (102) with a decrease in the curvature of said concave curved surface (102c).
Sole according to claim 1, wherein each damping pad (102) is adapted to be elastically compressed at least partially within the housing (100) without undergoing corresponding lateral shear and without undergoing any lateral displacement.
Sole according to any preceding claim, wherein the surface (102b) contacting the soil with a damping pad (102) extends over its entire periphery and outwardly of the stud (102) by a Surface convex curve (102d).
4. The sole according to claim 3, comprising a layer of material (C2) in which the damping pads (102) are formed projecting from the underside (102e) of said layer of material, and wherein said surface convex curve (102d) of a damping pad connects the underside (102e) of said layer of material (C2) to the surface (102b) of contact with the ground of the damping pad.
Outsole (1) for footwear comprising, in its heel portion (10) a plurality of housings (100), each having an opening (100a) in a bottom surface (101) of the sole intended to be in contact with the ground, and several damping pads (102) which are partly positioned in said housing (100), in an amount of at least one damping pad (102) through housing (100) and which, when not deformed, are partially projecting with respect to said bottom surface (101), each damping pad (102) being surrounded on all or part of its periphery by said bottom surface (101) and being adapted to be elastically compressed at least partially inside the housing (100) without undergoing corresponding lateral shear and without undergoing any lateral displacement.
Sole according to claim 5, wherein each damping pad (102) comprises, at the top of its projection (12a), a surface (102b) of contact with the ground, which extends over its entire periphery and towards within the pad (102) by a concave curved surface (102c) which is elastically deformable and which allows crushing of the damping pad (102) with a decrease in the curvature of said concave curved surface (102c).
Sole according to any one of claims 5 or 6, wherein the surface (102b) contacting the soil with a damping pad (102) extends over its entire periphery and outwardly of the stud (102) by a convex curved surface (102d).
8. Sole according to claim 7 comprising a layer of material (C2) in which the damping pads (102) are formed projecting from the underside (102e) of said layer of material, and wherein said surface convex curve (102d) of a damping pad connects the underside (102e) of said layer of material (C2) to the surface (102b) of contact with the ground of the damping pad.
Outsole (1) for footwear comprising, in its heel portion (10) a plurality of housings (100), each having an opening (100a) in a bottom surface (101) of the sole intended to be in contact with the ground, and several damping pads (102) which are partly positioned in said housing (100), in an amount of at least one damping pad (102) through housing (100) and which, when not deformed, are partially projecting with respect to said bottom surface (101), each damping pad (102) being surrounded on all or part of its periphery by said bottom surface (101), and being elastically deformable so as to be filled be compressed least partially within the housing (100) corresponding, each damping pad (102) having, at the top of its projection (12a), a surface (102b) of contact with the ground, which extends over the entire its periphery and towards the within the pad (102) by a concave curved surface (102c), and which extends over its entire periphery and outwardly of the stud (102) by a convex curved surface (102d).
10. Sole according to claim 9 comprising a layer of material (C2) in which the damping pads (102) are formed projecting from the underside (102e) of said layer of material, and wherein said surface convex curve (102d) of a damping pad connects the underside (102e) of said layer of material (C2) to the surface (102b) of contact with the ground of the damping pad. January 1. Sole according to any preceding claim, wherein the major part of a damping pad (102) in the undeformed state, is positioned within the housing (100) corresponding.
12. Sole according to any preceding claim, wherein each damping pad (102) is a solid member.
13. Sole according to any preceding claim, wherein the space in the housing (100) about a damping pad (102) is sufficiently large that the part (102a) of said cushioning pad ( 102), which protrudes with respect to said bottom surface (101) prior to deformation of the pad, is able to deform elastically under the effect of a compressive force (F) perpendicular to the bottom surface (101) of the sole, without undergoing radial compression.
14. Sole according to any preceding claim, wherein at least the protruding part (102a) of a damping pad (102) in the undeformed state, which is protruding with respect to said bottom surface (101) forms a solid of revolution having a central axis of symmetry (a) substantially perpendicular to said bottom surface
(101).
15. Sole according to any preceding claim, wherein each damping pad (102) is elastically deformable so as to be compressed completely within the housing
(100) corresponding.
16. Sole according to any preceding claim, wherein the damping pads (102) are designed so as to be able to be compressed completely within the housing (100) when the corresponding sole undergoes static, relative to a rigid flat, horizontal surface, a vertical compression on the entire surface of the sole under a load of at least 60kg, preferably under a load of between 60Kg and 180Kg.
17. Sole according to any preceding claim, wherein each damping pad (102) is designed such that crushing of the pin (102) with a decrease in the curvature of the concave curved surface (102c) is obtained when at least the sole undergoes static, relative to a rigid flat, horizontal surface S, a vertical compression on the entire surface of the sole under a load of at least 60kg, more particularly under a load of between 60Kg and 180kg.
18. Sole according to any preceding claim, wherein the number of damping pads (102) is the same on either side of a median longitudinal axis (M) of the heel portion (10).
19. Sole according to any preceding claim, wherein the heel portion (10) is divided laterally by a median longitudinal axis (M) into an inner heel area (ZI) and an external heel zone (ZE), and wherein the maximum longitudinal distance (U), measured longitudinally along the median longitudinal axis (M), between the rear part (10a) of the heel area and the centroid of the damping pad (102-1) which is in the inner heel area (ZI) and which is, in the direction of the central longitudinal axis (M), the farthest away from said rear portion (10a) of the heel area, is less than the maximum longitudinal distance (L e ), measured longitudinally along the median longitudinal axis (M), between the rear part (10a) of the heel zone (10) and the barycentre of the damping pad (102-E) which is located in the outer heel zone ( ZE), which is in the di rection of the longitudinal axis (M), the farthest away from said rear portion (10a) of the heel zone (10).
20. Sole according to any preceding claim, wherein the heel portion (10) is divided laterally by a median longitudinal axis (M) into an inner heel area (ZI) and an external heel zone (ZE), and wherein the maximum longitudinal distance (L), measured longitudinally along the median longitudinal axis (M), between the rear part (10a) of the heel area and the centroid of the damping pad (102-1) which is in the inner heel area (ZI) and which is, in the direction of the central longitudinal axis (M), the farthest away from said rear portion (10a) of the heel area, is less than 20% of the total length ( L) of the sole, and more particularly less than 17% of the total length (L) of the sole.
21. Sole according to any preceding claim, wherein the heel portion (10) is divided laterally by a median longitudinal axis (M) into an inner heel area (ZI) and an external heel zone (ZE), and wherein the maximum longitudinal distance (L e) measured longitudinally along the median longitudinal axis (M), between the rear part (10a) of the heel zone (10) and the barycentre of the damping pad (102-e) which is in the outer heel zone (ZE), and that is, in the direction of the central longitudinal axis (M), the farthest away from said rear portion (10a) of the heel zone (10) is between 12% and 35% of the total length (L) of the sole, and more particularly between 15% and 30% of the total length (L) of the sole.
22. Sole according to any preceding claim, wherein the heel portion (10) is divided laterally by a median longitudinal axis (M) into an inner heel area (ZI) and an external heel zone (ZE), and wherein the damping pads (102) in the outer heel zone (ZE), are distributed such that over the damping pad (102) is remote from the rear portion (10a) of the heel area, over the lateral distance (DL) between the barycenter of the damping pad (102) of said central longitudinal axis (M) is important.
23. Sole according to any preceding claim, wherein the heel portion (10) is divided laterally by a median longitudinal axis (M) into an inner heel area (ZI) and an external heel zone (ZE), and wherein the damping pads (102) in the outer heel zone (ZE), are distributed so that the line (C) passing through the centers of gravity of these damping pads (102) is a curved line ( LC) whose concavity is oriented towards said central longitudinal axis (M).
24. Sole according to any preceding claim, wherein each damping pad (102) is made from an elastomer, particularly a thermoplastic elastomer
(TPE), and more particularly still in a thermoplastic polyurethane elastomer (TPU).
25. Sole according to any preceding claim, wherein each damping pad (102) is made of a material having a hardness of about 30 to 55 Shore A, more particularly from 30 to 35 Shore A.
26. Sole according to any preceding claim, wherein the maximum distance d between the lower face (101) of the sole and the contact surface (102b) with the ground of a damping pad (102) the undeformed state is less than 1 mm, more especially substantially equal to 0.5mm.
27. Sole according to any preceding claim, wherein the diameter (D1) of a damping pad (102) in the undeformed state is between 7mm and 12mm.
28. Sole according to any preceding claim, having in its front portion (1 1) several pads before (1 12) which are elastically deformable, and which in the undeformed state is at least partially projecting relative to a lower surface (1 1 1) of the front portion (1 1) intended to be in contact with the ground.
29. Sole according to claim 28 wherein the front pads (1 12) are adapted to resiliently regain their original shape in order to facilitate propulsion of the foot forward.
30. Sole according to any of claims 28 or 29, wherein the apex of the projecting portion (1 12a) of a front pin (1 12) in the undeformed state, forms a surface (1 12b ) contact on the front pad (1 12) with the ground which is convex.
31. Sole according to any one of claims 28 to 30, wherein at least the projecting portion (1 12a) of a stud before, which protrudes with respect to said bottom surface (1 1 1) when the front pad ( 1 12) is not deformed, form a solid of revolution having a central axis of symmetry (a) substantially perpendicular to said bottom surface (1 1 1).
32. Sole according to claim 30, wherein the convex contact surface (1 12b) of a front pin (1 12) is substantially sphéhque.
33. Sole according to any of claims 28 to 32, having in its front portion several housing (1 10), each having an opening (10a 1) in the bottom surface (1 1 1) of the sole intended to be in contact with the ground, and wherein the pads before (1 12) are positioned in said housing at a rate of at least one stud per housing, wherein each front pin (1 12) is surrounded on all or part of its periphery by said bottom surface (1 1 1), and is elastically deformable so as to be filled at least partially compressed inside the housing (1 10) corresponding at a contact of the front pad (1 12) with the ground . 34. Sole according to claim 33, wherein the space in the housing (1 10) around a back pad (1 12) is sufficiently large so that the projecting portion (1 12a) of said back pad, which is projecting from said bottom surface (1 1 1) when the back pad (1 12) is not deformed, is elastically deformed in contact with the ground without being subjected to radial compression.
35. Sole according to any of claims 33 or 34, wherein each front pin (1 12) is elastically deformable so as to be filled completely compressed within the corresponding housing.
36. Sole according to claim 35, wherein the pads before (1 12) are designed so as to be able to be compressed completely within the housing (1 10) corresponding when the sole undergoes static with respect to a horizontal surface planar rigid, vertical compression on the entire surface of the sole under a load of at least 60kg, preferably under a load of between 60Kg and 180Kg.
37. Sole according to any of claims 28 to 36, wherein each front pin (1 12) is adapted to be elastically compressed at least partially within the housing (1 10) corresponding side without undergoing shear and without undergoing any lateral displacement.
38. Sole according to any of claims 28 to 37, wherein each front pin (1 12) is a solid member.
39. Sole according to any of claims 28 to 38, comprising a layer of material (C2) wherein the pads before (1 12) are formed projecting from the underside (102e) of said layer of material, and wherein the entire surface of each front pin (1 12) in the undeformed state is convex, and preferably substantially spherical.
40. Sole according to any one of the preceding claims, characterized by a segment internal metatarsal phalangeal ([CQ]) and an outer segment metatarsal phalangeal ([CO]) which intersect at an intermediate point metatarsal phalangeal (C), sole wherein before a first pad (1 12A) is positioned on the outer segment metatarsal phalangeal ([CO]) at a point (O1) located relative to the intermediate point metatarsal phalangeal (C) at a distance equal to a quarter of the length of the metatarsal phalangeal external segment ([CO]), wherein a second front pad (12B 1) is positioned substantially in the longitudinal direction parallel to the central longitudinal axis (M) of the heel portion (10 ) of the sole, and between the front end (1 1 a) of the sole and the first back pad (1 12A), wherein before a third pad (1 12C) is positioned on the inner metatarsal phalangeal segment
([CQ]) at a point (Q1) located relative to the intermediate point metatarsal phalangeal (C) at a distance equal to one third of the length of the metatarsal phalangeal internal segment ([CQ]), and wherein a fourth back pad (1 12D) is positioned substantially in the longitudinal direction parallel to the central longitudinal axis (M) of the heel portion (10) of the sole, and between the front end (1 1 a) of the sole and the third back pad (1 12C).
41. Sole according to claim 40 which is associated with a foot length (Lp), and wherein the distance (DP) between the first front pad (1 12A) and the second back pad (1 12B) is between 5% and 15% of the length of length, and preferably between 6% and 13% of the length of foot (Lp).
42. Sole according to claim 40 or 41, which is associated with a foot length (Lp), and wherein the distance (DP) between the third pad before
(1 12C) and the fourth back pad (1 12D) is 5% and 15% of the length of Length, and preferably between 6% and 13% of the length of foot (Lp). 43. Sole according to any one of claims 40 to 42, wherein before a fifth pad (1 12E) is positioned on the inner metatarsal phalangeal segment ([CQ]) at a point (Q2) located by relative to the intermediate point metatarsal phalangeal (C) at a distance equal to two thirds of the length of the metatarsal outer phalangeal section ([CQ]), and wherein a sixth back pad (1 12F) is positioned substantially in the longitudinal direction parallel to the central longitudinal axis (M) of the heel portion (10) of the sole, and between the front end (1 1 a) of the sole and the fifth back pad (1 12E). 44. Sole according to claim 43, which is associated with a foot length (Lp), and wherein the distance (DP) between the fifth front pad (1 12E) and the sixth back pad (1 12F) is between 5 % and 15% of the length of foot (Lp), and preferably between 6% and 13% of the length of foot (Lp).
45. Sole according to claim 43 or 44 wherein the fifth back pad (1 12E) and the sixth back pad (1 12F) are larger than the first
(1 12A), second (12B 1), third (1 12C) and fourth (12D 1) pads before.
46. ​​Sole according to any one of claims 43 to 45, wherein a seventh back pad (1 12g) is positioned on the outer segment metatarsal phalangeal ([CO]) at a point (02) located by relative to the metatarsal phalangeal intermediate point (C) at a distance equal to half the external metatarsal phalangeal segment ([CO]). 47. The sole of claim 46, wherein an eighth back pad (1 12H) is positioned substantially in the longitudinal direction parallel to the central longitudinal axis (M) of the heel portion (10) of the sole, and between the front end (1 1 a) of the sole and the seventh back pad (1 12G).
48. Sole according to claim 47, which is associated with a foot length (Lp), and wherein the distance (DP) between the seventh back pad (1 12G) and the eighth back pad (1 12H) is between 5 % and 15% of the length of foot (Lp), and preferably between 6% and 13% of the length of foot (Lp).
49. Sole according to claim 47 or 48, wherein the seventh back pad (1 12G) and the eighth back pad (1 12H) are so big that the first (1 12A), second (12B 1), third ( 1 12C) and fourth (12D 1) before pads
50. Sole according to any one of claims 47 to 49, wherein before a ninth pad (1121) is positioned on the outer segment metatarsal phalangeal ([CO]) at a point (03) located by relative to the metatarsal phalangeal intermediate point (C) at a distance equal to three quarters of the length of the metatarsal phalangeal external segment ([CO]).
51. Sole according to claim 50, wherein a tenth front pad (1 12J) is positioned substantially in the longitudinal direction parallel to the central longitudinal axis (M) of the heel portion (10) of the sole, and between the front end (1 1 a) of the sole and the ninth pad before
(1121).
52. Sole according to claim 50 or 51, which is associated with a foot length (Lp), and wherein the distance (DP) between the ninth front pad (1121) and before the tenth block (1 12J) is between between
5% and 15% of the length of foot (Lp), and preferably between 6% and 13% of the length of foot (Lp).
53. Sole according to claim 51 or 52, wherein before the ninth pad (1121) and before the tenth block (1 12J) are less larger than the first (1 12A), second (12B 1), third (12C 1 ) and fourth (12D 1) pads before, and preferably are also less larger than the seventh back pad (1 12G) and the eighth back pad (1 12H). 54. Sole according to any one of claims 28 to 53, wherein each front pin (1 12) is made from an elastomer, particularly a thermoplastic elastomer (TPE), and more particularly still in a thermoplastic polyurethane elastomer ( TPU).
55. Sole according to any of claims 28 to 54, wherein each front pin (1 12) is made of a material having a hardness between 50 and 70 Shore A.
56. Sole according to any of claims 28 to 55, wherein the maximum distance d between the underside (1 1 1) of the sole and the
5 contact surface (1 12b) with the ground of a front block (1 12) is less than
1 mm, and more specifically substantially equal to 0.5mm.
57. Sole according to any of claims 28 to 56, wherein the diameter (D1) of a front pad in the undeformed state is included entre0 5mm and 10mm.
58. Sole according to any preceding claim, having in its central part (12) a stiffening insert (120) that connects the heel part (10) to the front portion (1 1), and which allows the support of5 arch of the foot.
59. outsole having in its front portion (1 1) before several studs (1 12) which are elastically deformable, which in the undeformed state are at least partly projecting from a lower surface (1 1 1) o of the front portion (1 1) intended to be in contact with the ground and which allow to promote the propulsion of the foot forward when they return elastically to their original shape, which sole is characterized by a metatarsophalangeal segment inner phalangeal ([CQ]) and a metatarsophalangeal outer phalangeal section ([CO]) which intersect at an intermediate point 5 metatarsal phalangeal (C), sole wherein a first back pad (1 12A) is positioned on the segment external metatarsal phalangeal ([CO]) at a point (O1) located relative to the intermediate point metatarsal phalangeal (C) at a distance equal to one quarter of the length of the metatarsal phalangeal external segment ([CO]), in which a second 0 plo t before (12B 1) is positioned substantially in the longitudinal direction parallel to the central longitudinal axis (M) of the heel portion (10) of the sole, and between the front end (1 1 a) of the sole and before the first pad (1 12A), wherein before a third pad (1 12C) is positioned on the inner segment metatarsal phalangeal ([CQ]) at a point (Q1) located relative to the intermediate point metatarsophalangeal phalangeal (C) at a distance equal to one third of the length of segment inner metatarsal phalangeal ([CQ]), and wherein a fourth back pad (1 12D) is positioned substantially in the longitudinal direction parallel to the longitudinal axis median (M) of the heel portion (10) of the sole, and between the front end (1 1 a) of the sole and the third back pad (1 12C).
60. Sole according to claim 59, which is associated with a foot length (Lp), and wherein the distance (DP) between the first front pad (1 12A) and the second back pad (12B 1) is between 5 % and 15% of the length of length, and preferably between 6% and 13% of the length of foot (Lp).
61. Sole according to claim 59 or 60, which is associated with a foot length (Lp), and wherein the distance (DP) between the third front pad (1 12C) and the fourth back pad (1 12D) is 5% and 15% of the length of length, and preferably between 6% and 13% of the length of foot (Lp).
62. Sole according to any one of claims 59 to 61, wherein before a fifth pad (1 12E) is positioned on the inner metatarsal phalangeal segment ([CQ]) at a point (Q2) located by relative to the intermediate point metatarsal phalangeal (C) at a distance equal to two thirds of the length of the metatarsal outer phalangeal section ([CQ]), and wherein a sixth back pad (1 12F) is positioned substantially in the longitudinal direction parallel to the central longitudinal axis (M) of the heel portion (10) of the sole, and between the front end (1 1 a) of the sole and the fifth back pad (1 12E).
63. Sole according to claim 62, which is associated with a foot length (Lp), and wherein the distance (DP) between the fifth front pad (1 12E) and the sixth back pad (1 12F) is between 5 % and 15% of the length of foot (Lp), and preferably between 6% and 13% of this
5 foot length (Lp).
64. Sole according to claim 62 or 63 wherein the fifth back pad (1 12E) and the sixth back pad (1 12F) are larger than the first (1 12A), second (12B 1), third (12C 1) and fourth (12D 1) o pads before.
65. Sole according to any one of claims 62 to 64, wherein a seventh back pad (1 12g) is positioned on the outer segment metatarsal phalangeal ([CO]) at a point (02) located by report AU5 metatarsal phalangeal intermediate point (C) at a distance equal to half the external metatarsal phalangeal segment ([CO]).
66. The sole of claim 65, wherein an eighth back pad (1 12H) is positioned substantially in the longitudinal direction 0 parallel to the central longitudinal axis (M) of the heel portion (10) of the sole, and between front end (1 1 a) of the sole and the seventh back pad (1 12G).
67. Sole according to claim 66, which is associated with a length of 5 feet (Lp), and wherein the distance (DP) between the seventh pad before
(1 12G) and the eighth back pad (1 12H) is between 5% and 15% of the length of foot (Lp), and preferably between 6% and 13% of the length of foot (Lp). 0 68. A sole according to claim 66 or 67, wherein the seventh back pad (1 12G) and the eighth back pad (1 12H) are so big that the first (1 12A), second (12B 1), third (1 12C) and fourth (12D 1) before pads
69. Sole according to any one of claims 66 to 68, wherein before a ninth pad (1121) is positioned on the outer segment metatarsal phalangeal ([CO]) at a point (03) located by relative to the metatarsal phalangeal intermediate point (C) at a distance equal to three quarters of the length of the metatarsal phalangeal external segment ([CO]). 70. The sole of claim 69, wherein a tenth front pad (1 12J) is positioned substantially in the longitudinal direction parallel to the central longitudinal axis (M) of the heel portion (10) of the sole, and between the front end (1 1 a) of the sole and the ninth front pad (1121).
71. Sole according to claim 70, which is associated with a foot length (Lp), and wherein the distance (DP) between the ninth front pad (1121) and the tenth front pad (1 12J) is between between 5 % and 15% of the length of foot (Lp), and preferably between 6% and 13% of the length of foot (Lp).
72. Sole according to claim 70 or 71, wherein before the ninth pad (1121) and before the tenth block (1 12J) are less larger than the first (1 12A), second (12B 1), third (12C 1 ) and fourth (12D 1) pads before, and preferably are also less larger than the seventh back pad (1 12G) and the eighth back pad (1 12H).
73. outer sole of a shoe comprising, in its heel portion (10), a lower surface (101) intended to be in contact with the ground and a plurality of damping pads (102) are at least partially projecting relative to said lower surface (101) and which are elastically deformable, characterized in that the heel portion (10) is divided laterally by a median longitudinal axis (M) into an inner heel area (ZI) and an external heel zone (ZE ), and in that it comprises one and / or other characteristics (a) and (b):
(A) the maximum longitudinal distance (L), measured longitudinally along the median longitudinal axis (M), between the rear part (10a) of the heel area and the centroid of the damping pad (102-1) which is located in the inner heel area (ZI) and which is, in the direction of the central longitudinal axis (M), the farthest away from said rear portion (10a) of the heel area, is less than the maximum longitudinal distance (L e), measured longitudinally along the median longitudinal axis (M), between the rear part (10a) of the heel zone (10) and the barycentre of the damping pad (102-e) which is located in the outer heel area (ZE) and which is, in the direction of the central longitudinal axis (M), the farthest away from said rear portion (10a) of the heel zone (10); and or
(B) damping pads (102) in the outer heel zone (ZE), are distributed such that over the damping pad (102) is remote from the rear portion (10a) of the heel area , the greater the lateral distance (DL) between the barycenter of the damping pad (102) of said central longitudinal axis (M) is important.
74. The sole of claim 73, wherein the maximum longitudinal distance (U), measured longitudinally along the median longitudinal axis (M), between the rear part (10a) of the heel area and the centroid of the damping pad ( 102-1) which is located in the inner heel area (ZI) and which is, in the direction of the central longitudinal axis (M), the farthest away from said rear portion (10a) of the heel area, is less than 20% of the total length (L) of the sole, and more particularly less than 17% of the total length (L) of the sole.
75. Sole according to any one of claims 73 or 74, wherein the maximum longitudinal distance (L e) measured longitudinally along the median longitudinal axis (M), between the rear part (10a) of the heel zone (10 ) and the barycentre of the damping pad (102-E) which is located in the outer heel zone (ZE), and that is, in the direction of the central longitudinal axis (M), the farthest away from said rear part (10a) of the heel zone (10) is between 12% and 35% of the total length (L) of the sole, and more particularly between 15% and 30% of the total length (L) of the sole.
76. Sole according to any one of claims 73 to 75, wherein the damping pads (102) in the outer heel zone (ZE), are distributed so that the line (C) passing through the centers of gravity of these damping pads (102) is a curved line (LC) whose concavity is oriented towards said central longitudinal axis (M).
77. Shoe, in particular adapted to a foot having undergone physiological changes and / or anatomical related to aging, and having an outer outsole (1) described in any one of the preceding claims.
PCT/FR2015/053549 2014-12-16 2015-12-16 Outer sole for footwear, comprising damping studs WO2016097606A1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR1462530A FR3029749B1 (en) 2014-12-16 2014-12-16 outer sole of a shoe having the front portion of the projecting studs and elastically deformable
FR1462532A FR3029750B1 (en) 2014-12-16 2014-12-16 outer shoe sole having in the heel portion of the damping pads projecting and elastically deformable
FR1462530 2014-12-16
FR1462529A FR3029748B1 (en) 2014-12-16 2014-12-16 outer shoe sole having in the heel portion of the damping pads projecting and elastically deformable
FR1462532 2014-12-16
FR1462529 2014-12-16

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15821145.8A EP3232846A1 (en) 2014-12-16 2015-12-16 Outer sole for footwear, comprising damping studs
CN201580068686.0A CN106998854A (en) 2014-12-16 2015-12-16 Outer sole for footwear, comprising damping studs

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WO2016097606A1 true WO2016097606A1 (en) 2016-06-23
WO2016097606A9 WO2016097606A9 (en) 2016-07-28

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Citations (8)

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Publication number Priority date Publication date Assignee Title
DE2659354A1 (en) * 1976-12-29 1978-07-13 Bata Schuhe Ag Golf shoe with sole of foamed polyurethane - has circular projections instead of spikes in central part of sole
US5768802A (en) * 1995-07-12 1998-06-23 Vibram S.P.A. One-piece sports sole-heel unit with increased stability
EP1264556A1 (en) * 2001-06-07 2002-12-11 Mizuno Corporation Sole assembly for sports shoe
EP1557104A1 (en) * 2004-01-23 2005-07-27 Cauchos Ruiz-Alejos, S.A. A shoe sole
EP1600072A1 (en) * 2004-05-28 2005-11-30 Pezzol S.R.L. Sole for shoes
DE102006025990A1 (en) * 2005-06-03 2006-12-14 Treksta Inc. Sole of shoe, comprises four layers with complementary projections and openings
WO2012045512A1 (en) * 2010-10-07 2012-04-12 Glide'n Lock Gmbh Outsole
US20120260535A1 (en) * 2011-04-18 2012-10-18 Nike, Inc. Outsole with Extendable Traction Elements

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2659354A1 (en) * 1976-12-29 1978-07-13 Bata Schuhe Ag Golf shoe with sole of foamed polyurethane - has circular projections instead of spikes in central part of sole
US5768802A (en) * 1995-07-12 1998-06-23 Vibram S.P.A. One-piece sports sole-heel unit with increased stability
EP1264556A1 (en) * 2001-06-07 2002-12-11 Mizuno Corporation Sole assembly for sports shoe
EP1557104A1 (en) * 2004-01-23 2005-07-27 Cauchos Ruiz-Alejos, S.A. A shoe sole
EP1600072A1 (en) * 2004-05-28 2005-11-30 Pezzol S.R.L. Sole for shoes
DE102006025990A1 (en) * 2005-06-03 2006-12-14 Treksta Inc. Sole of shoe, comprises four layers with complementary projections and openings
WO2012045512A1 (en) * 2010-10-07 2012-04-12 Glide'n Lock Gmbh Outsole
US20130263469A1 (en) 2010-10-07 2013-10-10 Glide'n Lock Ag Outsole
US20120260535A1 (en) * 2011-04-18 2012-10-18 Nike, Inc. Outsole with Extendable Traction Elements

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CN106998854A (en) 2017-08-01
EP3232846A1 (en) 2017-10-25

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