WO2016050658A1 - Non-slip shoe sole - Google Patents

Non-slip shoe sole Download PDF

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Publication number
WO2016050658A1
WO2016050658A1 PCT/EP2015/072193 EP2015072193W WO2016050658A1 WO 2016050658 A1 WO2016050658 A1 WO 2016050658A1 EP 2015072193 W EP2015072193 W EP 2015072193W WO 2016050658 A1 WO2016050658 A1 WO 2016050658A1
Authority
WO
WIPO (PCT)
Prior art keywords
mm
sole
texture
elements
textures
Prior art date
Application number
PCT/EP2015/072193
Other languages
French (fr)
Inventor
Olivier Muhlhoff
Arnaud Larregain
Original Assignee
Compagnie Generale Des Etablissements Michelin
Michelin Recherche Et Technique S.A.
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 FR1402195A priority Critical patent/FR3026277B1/en
Priority to FR14/02195 priority
Application filed by Compagnie Generale Des Etablissements Michelin, Michelin Recherche Et Technique S.A. filed Critical Compagnie Generale Des Etablissements Michelin
Publication of WO2016050658A1 publication Critical patent/WO2016050658A1/en

Links

Classifications

    • AHUMAN NECESSITIES
    • A43FOOTWEAR
    • A43BCHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00Footwear for sporting purposes
    • A43B5/005Footwear for sporting purposes for grinding, i.e. sliding on the sole or a part thereof
    • 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

Abstract

The invention relates to a shoe sole (1) comprising a sole bottom side equipped with a plurality of ground-contact zones (2) and a sole top side designed to support the user's foot, in which at least one of the ground-contact zones is provided with non-slip textures (10).

Description

 ANTI-SLIP SHOE SOLE

TECHNICAL FIELD OF THE INVENTION

The present invention relates to an anti-slip shoe sole. It relates more particularly to a shoe sole intended for use in environments where the floor is particularly slippery.

STATE OF THE PRIOR ART The use of anti-slip soles in the field of footwear is particularly present in activities likely to cause possible risks to the safety of individuals. Falls caused by loss of grip of the shoes on the surfaces borrowed are indeed a common cause of accidents. To overcome this risk, various solutions have been developed to increase the adhesion of soles on different surfaces.

EP2762027 relates to a shoe comprising a sole comprising grooves. The soles generally include a plurality of grooves formed in at least a portion of the outsole, from a lateral side of the sole to an inner side of the sole. The grooves may be linear or curved and extend angularly. The grooves have varying depths depending on whether they are at the perimeter of the sole or the center of the sole. The grooves in the center of the sole have a greater depth than the edge of the sole.

WO201 1 138639 describes a sole and a slipper assembled to form a shoe in which the toes are in separate compartments. The sole is thin and has different elements of sculpture. This sculpture arrangement is an improved version of the body's own skin. The multiple elements of the sole allow a greater range of motion, giving the sensation of being barefoot. The fineness of the sole also improves the environmental sensations perceived by the foot and the body. Such sensations allow the body to make adjustments or corrections that can improve the balance and stability of an individual during a given exercise.

Also US4571852 document relates to a non-slip sole of rubber or similar material. This sole has a lower overall surface which is substantially flat. Because of the spiral shape of the ribs, air, water or other liquid can escape without forming a draft and thus allows the sole to adhere perfectly to the ground, thus making it fully slip-resistant.

The patent application EP1637051, relating to a model of a safety shoe sole, provides a non-slip shoe, which comprises a heel insert consisting of a first elastomer and a sole made of a second elastomer which incorporates partially said bead insert, so that the latter remains exposed in the heel area of said sole. The hardness of the elastomer of the first bead piece is less than that of the second elastomer of the sole. The document also describes a process for producing said anti-slip sole by molding, or by casting an elastomer.

The document EP0383489, referring to the field of cooking, describes an anti-slip sole consisting of hollow lines, intersecting by defining a pattern of crampons with non-linear edges. This sole provides an anti-slip effect adapted to tiled surfaces covered with cooking oils or grease.

The use of particular soles is possibly in the field of sports as provided by the French application FR2402426. This application relates to a sports shoe with a non-slip sole, comprising a bearing surface which is substantially smooth and flat and has a low degree of hardness. This shoe is particularly intended for the practice of sports such as windsurfing or skateboarding. This document indeed considers the adhesion of said sole on a potentially wet surface. This shoe can also be used for smooth surfing sports such as tennis and badminton.

US5725823A discloses a method of forming a shoe sole having a co-molded non-slip insert. The raw materials of unvulcanized rubber sheets of the insert and the main part of the sole are placed in a mold and heated together to be melted, in order to vulcanize the rubber and thus produce a non-slip pattern on the room. The material of the insert is substantially the same as that of the main part of the sole, with the exception of its color. It does, however, have the appearance and texture of a separate insert.

All of these documents therefore treats anti-slip soles respectively used in targeted areas. On the other hand, none of the documents evoked presents a truly effective solution in order to avoid the phenomena of slipping of the sole on a floor covered with a thin film of liquid, or even on an icy floor covered or not with a film of film. water. This risk for the individual is nevertheless present in the practice of different professional activities such as in the medical field, or leisure such as in the nautical environment. In these last types of use, the safety aspect becomes preponderant in front of performances such as durability or longevity.

To overcome these disadvantages, the invention provides different technical means. SUMMARY OF THE INVENTION

First, a first object of the invention is to provide a sole for use on slippery surfaces.

Another object of the invention is to provide soles adapted for activities on icy grounds, such as curling.

Yet another object of the invention lies in providing soles adapted to the nautical environment.

Another object of the invention to provide soles suitable for professional activities, such as in the medical sector and more specifically in the hospital environment, where soils are often slippery.

To do this, the invention provides a shoe sole comprising:

- a bottom of sole, provided with a plurality of areas of contact with the ground;

- A soleplate, adapted to support the user's foot;

 at least one of the zones of contact with the ground being provided with anti-slip textures arranged on a vertex of at least one sculpture,

the zone of contact provided with textures comprising a plurality of elements protruding or hollow with respect to the surface, each element extending substantially perpendicular (θ = 90 °) to the contact surface, the elements in hollow or in protuberance of the texture being integral with said sole, all or part of the protruding elements being strands distributed in the texture at a density of at least one strand per square millimeter (mm 2 ), each strand having an average cross-section between 0.003 mm 2 and 1 mm 2 and / or all or part of the elements in protuberance being lamellae substantially parallel to each other, the pitch of the lamellae in the texture being at most equal to 0.5 mm, each lamella having an average width of between 0.03 mm and 0.25 mm. With such an architecture, the sole has particularly advantageous adhesion characteristics, particularly on some coatings on which the soles of known type are substantially less effective, such as surfaces covered with an ice layer.

Such sole may also have particularly advantageous anti-slip characteristics on wet surfaces. For example, during nautical activities, it is essential to wear shoes adapted to navigation, especially during the anchoring and mooring phases. The floor of the boat can in this case be splashed water, making the bridge slippery. Wearing non-slip shoes is therefore necessary and ensures the safety of the occupants.

The wearing of such soles may also be advantageous in certain professional activities, such as in the health care sector, since plastic flooring linoleum, PVC or other, a hospital environment are often cleaned and therefore humidified for reasons of safety and hygiene, which is likely to cause significant risks of loss of adhesion.

The soles according to the invention can also find applications particularly useful in sliding sports, such as "curling". Thus, during a curling match, especially after a few games and after several intense scans, the surface of the ice has multiple forms of abrasion often covered with ice microparticles that tend to melt. , making the soil particularly slippery. For high quality shoes, often having asymmetrical soles, one of which promotes sliding, and the other the adhesion, the textured areas are present in particular on the sole promoting adhesion, that is to say the right sole for a right-handed man. Furthermore, this type of anti-slip soles has the advantage of being worn only in a minimal way since their use is confined to specific activities on particular soils, very little or non-abrasive. Advantageously, the contact area provided with textures is located on the front portion of the sole.

Alternatively, the contact area provided with textures is located on the heel of the sole.

In another variant, the texture covers the majority, for example at least 80%, of the ground contact surface.

Advantageously, the textures are arranged to provide an anti-slip effect.

Advantageously, at least 30% of the protruding elements of the texture form an angle α greater than 40 ° with respect to a plane tangent to the contact surface and at most 25% of the protruding elements of the texture form. an angle a less than 20 ° with respect to the tangent plane.

Advantageously, a portion of the protruding elements form side parallelepipeds between 0.05 mm and 0.5 mm, with a height of between 0.05 mm and 0.5 mm, the distance between two adjacent parallelepipeds. in the texture being between 0.05 mm and 0.5 mm.

Also advantageously, the protruding elements present in the texture shapes and distances between the variable protruding elements.

According to an alternative embodiment, a part of the hollow elements form openings on the sole and the texture comprises a plurality of openings, said openings being distributed in the texture in a density at least equal to one opening per square millimeter (mm 2 ), these openings having on the sole plate equivalent diameters of between 0.03 mm and 1.2 mm. The invention also provides a shoe comprising a sole such as previously described.

DESCRIPTION OF THE FIGURES [0031] All the details of embodiment are given in the description which follows, supplemented by FIGS. 1 to 8, presented solely for purposes of non-limiting examples, and in which:

 - Figure 1 is a schematic representation of an example of a bottom of a sole according to the invention;

FIG. 2 represents a variant of the embodiment of FIG. 1, of which only certain zones consist of textures;

 - Figure 3 shows a part of the texture of a sole such as that of Figures 1 or 2, according to a first embodiment wherein the texture has protruding elements in the form of strands;

FIG. 4 represents a part of the texture of a sole such as that of FIGS. 1 or 2, according to another second embodiment in which the texture has elements in protuberance in the form of lamellae;

 - Figure 5 shows a portion of the texture of a sole such as that of Figures 1 or 2, according to a third embodiment wherein the texture has parallelepiped shaped protruding elements;

 FIG. 6 represents a part of the texture of a sole such as that of FIGS. 1 or 2, according to a fourth embodiment in which the texture has elements in protuberance whose shapes and the distances between elements in protuberance are variable. ;

FIG. 7 represents a part of the texture of a soleplate such as that of FIGS. 1 or 2, according to a fifth embodiment in which the texture has hollow elements conical in this example; FIG. 8 represents an enlarged view of a cavity of a hollow element of the texture of FIG. 7.

DETAILED DESCRIPTION OF THE INVENTION

In this document, the term "anti-slip sole", a type of sole designed to adhere to the ground, including a wet or glossy floor. This type of sole has anti-slip textures whose friction coefficient on the surfaces described in this document is substantially higher compared to the areas lacking such textures. According to the invention, these characteristics of higher coefficient of friction are effective to isomaterials, and therefore essentially fall under the specific architecture of the textures provided and described below. In fact, it has been found that the very small dimensions of the textures, coupled with the shape characteristics, make it possible to obtain substantially improved behavior of the soles compared to the soles already known.

Figure 1 illustrates a first embodiment of the invention. The underside of the sole 1 comprises a plurality of contact zones 2 in the form of sculptures defined by a vertex 3 configured to be in contact with the ground and sculpture funds 4, adjacent to the vertices, and set back from to these, so as to provide a free space between said funds 4 and the tops 3. In the usual way, the sculptures can be arranged in a virtually infinite number of configurations, in which the profiles and / or dimensions can vary depending on the soles.

In the exemplary embodiment illustrated in FIG. 1, the sculpting peaks 3 are provided with anti-slip textures 10, as described below. Thus, the funds 4 of sculpture and the camber 6 are the only areas devoid of such textures 10. In Figures 1 and 2, the textures 10 are represented by hatching, so as to illustrate the visual effect of strong contrast between the textured areas, at the top 3 of sculpture, and those untextured, sculpture background 4 . More specifically, in Figure 1, the front section of the sole comprises a front sculpture, while the front of the sole, and respectively three and four sculptures on the inner and outer sides. At the heel, three lateral sculptures on each side occupy most of the heel, the rear having a single sculpture across the width. Each of the vertices 3 is delimited by a bottom 4 immediately adjacent to the vertex. The vertices 3 are highlighted by textures 10, thus creating a noticeable visual effect. Therefore, the sole of the shoe can greatly help to enhance and enhance the overall appearance of the shoe. The embodiment of Figure 2 is similar to that of Figure 1 for a portion of the sculptures of the front sector and the rear of the heel. Other heel sculptures include vertices devoid of textures. It is the same for three of the sculptures in the front area, three on the outside and one on the inside. In the example of Figure 2, the camber 6 of the sole is also devoid of textures 10.

Many variants of these embodiments can be implemented without departing from the scope of the invention. In addition, depending on the intended uses and the types of soil involved, different areas of the sole may be provided with sculptures including textures 10. The sculpture backgrounds may also include textures, covering them partially or in full.

Since the carving peaks 3 are in contact with the ground, the textures are potentially subject to wear. However, when the shoes are well used according to the recommendations provided in this document, such as on the deck of a sailboat, on an ice rink possibly covered with a film of water, on a floor PCV hospital, etc. ., where the coefficient abrasion is very low, the level of wear is modest and allows normal use of shoes for a period comparable to that of conventional shoes. The previously mentioned contrast effect is due to the fact that the luminance level of the zones provided with textures 10 (such as the vertices 3) is lower than that of the zones devoid of textures (such as the vertices of the sculpture elements). . Various arrangements or configurations of textures make it possible to produce such an effect, as described below, in relation with FIGS. 3 to 8.

Figures 3 to 8 illustrate examples of textures that can be arranged on the sole according to the invention. [0042] Figure 3 illustrates an embodiment in which the texture comprises a plurality of strands 1 January. The strands 11 are distributed in the texture according to a density of at least one strand per mm 2 , each strand having an average section S of between 0.0005 mm 2 and 1 mm 2 . It is noted that the average section of each strand corresponds to the average of sections S measured at regular intervals from the base of the strand. The strands 106 have a generally conical shape with a section decreasing in the Hb height of these strands.

FIG. 4 illustrates an embodiment in which the texture comprises a plurality of blades 12 parallel to each other, the pitch of the blades 12 in the texture being at most equal to 0.5 mm, each blade 12 having an average width. between 0.02 mm and 0.5 mm. Note that the average width corresponds to the average width I measured at regular intervals in the height Hl of the blade, the height of each blade being between 0.05 and 0.5 mm. In another variant embodiment, the texture comprises a combination of strands 1 1 and / or and blades 12. The invention is not limited to the examples described and shown and various modifications can be made without departing from its scope. Thus, according to another non-limiting embodiment, the blades 12 of Figure 4 may be discontinuous. They have a flat part between them. In addition, they may have section differences between them. In addition, the blades may have curvatures or angles, especially in their length. They can also be of variable length.

In the example of FIG. 5, the textures have a parallelepipedic section 13 of side C between 0.05 mm and 0.5 mm, with a height H p of between 0.05 mm and 0.5 mm, the distance Dp between two adjacent cavities in the texture being between 0.05 mm and 0.5 mm. In a variant, the section of the textures may be circular, polygonal (for example hexagonal). With square or polygonal structures, it is possible to more easily organize the elements relative to each other so as to limit the area of the intermediate zones between the elements.

In the variant of Figure 6, the elements 14 have shapes and variable distances between them. This variant makes the details of the texture less visible.

Figure 7 illustrates a texture according to another non-limiting embodiment. In this variant, the texture is formed by a plurality of cavities 16. The cavities 16 are here in the form of cones which extend in the depth of the surface and open out onto this surface by forming circular openings 15. The cavities 16 have thus a section that decreases in depth. Note that in this variant, the openings 1 1 of the cavities 16 do not touch. The openings 1 1 are separated by intermediate zones 17. In addition, the openings January 1 are evenly distributed so that the distance d between each opening is generally similar.

Figure 8 is an enlarged view of the texture of Figure 7. All or part of the cavities here has at least one wall 18 which, in a sectional view, forms a angle β between 10 ° and 60 ° with respect to a direction Z perpendicular to the texture.

Reference numbers used in the figures

Underside

 Contact areas

 Mountain peak

 Sculpture Fund

 Flank

 instep

 textures

 strands

 blades

 parallelepipeds

 Variable protruding elements

 Circular openings

 cavities

 Intermediate areas

 Wall

Claims

1. Shoe sole (1) comprising:
 - a lower sole, provided with a plurality of contact zones (2) with the ground;
 - A soleplate, adapted to support the user's foot;
- at least one of the contact areas (2) with the ground being provided with anti-slip textures (10) arranged on a vertex (3) of at least one sculpture, characterized in that the contact zone (2) provided of textures comprises a plurality of elements (1 1, 12, 13, 14, 15, 16) protuberance or hollow relative to the surface (2), each element extending substantially perpendicular (0 = 90 °) to the contact surface (2) and in that the hollow elements or protuberance of the texture are integral with said sole and in that all or part of the protruding elements are strands (6) distributed in the texture ( 3) at a density of at least one strand per square millimeter (mm 2 ), each strand having an average cross section of between 0.003 mm 2 and 1 mm 2 and / or all or part of the protruding elements are slats (7) substantially parallel to each other, the pitch of the lamellae in the texture (3) being at most equal to 0 , 5 mm, each lamella having an average width of between 0.03 mm and 0.25 mm.
The sole of claim 1, wherein a contact area (2) provided with textures (10) is located on the front portion of the sole.
3. Sole according to one of claims 1 or 2, wherein a contact zone (2) provided with textures (10) is located on the heel of the sole.
4. Sole according to one of claims 1 to 3, wherein at least 30% of the elements (6, 7) in protrusion of the texture (3) make an angle greater than 40 ° relative to a plane tangent to the contact surface (2) and in that at most 25% of the protruding elements (6, 7) of the texture (3) make an angle a less than 20 ° relative to the tangent plane.
5. Sole according to one of claims 1 to 3, wherein a portion of the protruding elements form parallelepipeds (8) side (C) between 0.05 mm and 0.5 mm, height (Hp) included between 0.05 mm and 0.5 mm, the distance between two adjacent parallelepipeds (8) in the texture being between 0.05 mm and 0.5 mm.
6. Sole according to one of claims 1 to 3, wherein the protruding elements (9) have in the texture (3) forms and distances between elements protruding variable.
The sole according to one of claims 1 to 3, wherein a part of the recessed elements (10) form openings (1 1) on the sole and the texture (3) comprises a plurality of openings (1 1). , said openings (1 1) being distributed in the texture (3) in a density at least equal to one opening per square millimeter (mm 2 ), these openings (1 1) having on the soleplate equivalent diameters (Dt) between 0.03 mm and 1.2 mm.
8. Shoe comprising a sole according to one of claims 1 to 7.
PCT/EP2015/072193 2014-09-30 2015-09-28 Non-slip shoe sole WO2016050658A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR1402195A FR3026277B1 (en) 2014-09-30 2014-09-30 Anti-slip shoe sole
FR14/02195 2014-09-30

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15771917.0A EP3200638A1 (en) 2014-09-30 2015-09-28 Non-slip shoe sole
CN201580053045.8A CN106714607A (en) 2014-09-30 2015-09-28 Non-slip shoe sole

Publications (1)

Publication Number Publication Date
WO2016050658A1 true WO2016050658A1 (en) 2016-04-07

Family

ID=52339180

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2015/072193 WO2016050658A1 (en) 2014-09-30 2015-09-28 Non-slip shoe sole

Country Status (4)

Country Link
EP (1) EP3200638A1 (en)
CN (1) CN106714607A (en)
FR (1) FR3026277B1 (en)
WO (1) WO2016050658A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4130947A (en) * 1976-07-29 1978-12-26 Adidas Fabrique De Chaussures De Sport Sole for footwear, especially sports footwear
EP1985195A1 (en) * 2006-02-10 2008-10-29 Yonex Kabushiki Kaisha Shoe
US20120180340A1 (en) * 2011-01-13 2012-07-19 SR Holdings, LLC Footwear
EP2762027A1 (en) * 2008-05-30 2014-08-06 Nike International Ltd. Outsole having grooves forming discrete lugs

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4571852A (en) * 1982-09-24 1986-02-25 Les Caoutchoucs Acton Ltee Anti-skidding sole
US20020078598A1 (en) * 2000-12-21 2002-06-27 Michael Bell Sole for footwear or footwear attachment having multilevel cleats for indicating wear and providing enhanced traction and flexibility
US9510644B2 (en) * 2010-05-04 2016-12-06 Vibram S.P.A. High foot mobility shoe

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4130947A (en) * 1976-07-29 1978-12-26 Adidas Fabrique De Chaussures De Sport Sole for footwear, especially sports footwear
EP1985195A1 (en) * 2006-02-10 2008-10-29 Yonex Kabushiki Kaisha Shoe
EP2762027A1 (en) * 2008-05-30 2014-08-06 Nike International Ltd. Outsole having grooves forming discrete lugs
US20120180340A1 (en) * 2011-01-13 2012-07-19 SR Holdings, LLC Footwear

Also Published As

Publication number Publication date
CN106714607A (en) 2017-05-24
FR3026277A1 (en) 2016-04-01
EP3200638A1 (en) 2017-08-09
FR3026277B1 (en) 2017-06-02

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