EP3592166A1 - Non-slip sole - Google Patents

Non-slip sole

Info

Publication number
EP3592166A1
EP3592166A1 EP18710536.6A EP18710536A EP3592166A1 EP 3592166 A1 EP3592166 A1 EP 3592166A1 EP 18710536 A EP18710536 A EP 18710536A EP 3592166 A1 EP3592166 A1 EP 3592166A1
Authority
EP
European Patent Office
Prior art keywords
sole
particles
cavities
outsole
insole
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP18710536.6A
Other languages
German (de)
French (fr)
Other versions
EP3592166B1 (en
Inventor
Philippe Souyri
Bozena Voge
Emmanuel Igier
Patricia MARSOLLIER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Compagnie Generale des Etablissements Michelin SCA
Original Assignee
Compagnie Generale des Etablissements Michelin SCA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Compagnie Generale des Etablissements Michelin SCA filed Critical Compagnie Generale des Etablissements Michelin SCA
Publication of EP3592166A1 publication Critical patent/EP3592166A1/en
Application granted granted Critical
Publication of EP3592166B1 publication Critical patent/EP3592166B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/04—Plastics, rubber or vulcanised fibre
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/02—Soles; Sole-and-heel integral units characterised by the material
    • A43B13/12—Soles with several layers of different materials
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/22—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/22—Soles made slip-preventing or wear-resisting, e.g. by impregnation or spreading a wear-resisting layer
    • A43B13/223—Profiled soles
    • A43B13/226—Profiled soles the profile being made in the foot facing surface

Definitions

  • the present invention relates to a non-slip sole. It relates more particularly to a sole having a plurality of cavities occupied by filling particles. The invention also relates to a method of manufacturing such a sole.
  • document FR2843685 discloses an aquatic shoe provided with a rough bottom surface. This surface has a non-slip surface state consisting of an elastic fabric embedded in a thin layer of rubber material.
  • FR 2722376 which relates to a non-slip surface of the type comprising a network of relief sculptures.
  • the described solution consists in that said sculptures are formed of a transverse network of narrow channels extending from one edge to the other discontinuously, a channel being defined by U-shaped lines.
  • Document FR2709929 discloses a non-slip sole having teeth protruding from the sole and resilient studs also protruding extending between the teeth and having a height at rest substantially equal to that of the teeth.
  • the document FR2661322 relates to a rigid sole of polyvinyl chloride (PVC) of the type comprising a sole body provided with at least one insert in contact with the ground and forming a wear surface.
  • the inserts are made of polyvinyl chloride of lower hardness than the polyvinyl chloride of the body of the sole.
  • a first object of the invention to provide a sole provided with friction characteristics conferring good slip characteristics, especially on very smooth floors, on wet floors, or on dry ice or wet.
  • Another object of the invention is to provide a non-slip shoe sole whose non-slip characteristics persist despite the wear of the sole.
  • the invention provides a shoe sole comprising an outsole, an insole and a midsole, extending between the insole and the outsole, the outsole being made of an elastomeric material. having a plurality of cavities filled with cavity-filling particles which are in the solid state at ambient temperature, a plurality of open cavities forming micro-reliefs distributed over the external surface of the outsole in the new state, and during wear of the sole, due to the distribution of the cavities in the mass thereof, new cavities being gradually released.
  • microreliefs generated by the cavities portions present on the surface of the sole provides a mechanical effect increasing the coefficient of friction of the the sole. This effect is particularly beneficial on smooth ground, wet or wet ground, and even on ice (dry or wet).
  • the soles according to the invention form a non-compressible structure, providing many advantages in terms of mechanical behavior.
  • the cavity filling particles are soluble in water. This embodiment allows for a sole whose contact surface with the ground is dotted with microcavities providing a gripping effect with the ground. As soon as the sole wears out, new cavities and particles are released to allow continuity of the adhesion properties related to the cavities.
  • the filling particles are salts. This type of particle has the advantage of great ease of mixing with the elastomeric materials.
  • the filler particles are chosen from the list comprising chlorates or perchlorate, potassium, ammonium or magnesium sulphates and in particular MgSO 4 and more preferably anhydrous magnesium sulphate. .
  • the average diameter of the particles is between 0.01 mm and 1 mm and more preferably between 0.01 mm and 0.3 mm and even more preferably between 0.01 and 0.1 mm.
  • the cavities are distributed in the elastomeric material in a substantially homogeneous manner.
  • the filling particles occupy between 15% and 60% of the volume of the outsole, and more preferably between 25% and 35% of the volume of the outsole.
  • the invention also provides a method of manufacturing a shoe sole as previously described, in which a plurality of filler particles are incorporated in an elastomeric material and mixed with the latter to form a substantially uniform mixture, the resulting mixture is then vulcanized in an outer sole-shaped mold specifically provided for this purpose.
  • FIG 1 is an enlarged schematic representation of an example of a portion of an outsole having cavities and filler particles
  • FIG 2 is a schematic representation of a section of an example of a shoe sole. DETAILED DESCRIPTION OF THE INVENTION
  • outsole means the outsole, that is to say the part of the sole which is in contact with the ground.
  • midsole or “midsole” means the part of the sole which extends substantially under the entire foot, against the outsole, and between the latter and the insole or first.
  • insole or "first” or “first of assembly” means the part of the sole in contact with the foot under which successively extend the midsole and the outsole.
  • Figure 2 illustrates an example of sole 1 of the shoe according to the invention.
  • This sole comprises an outsole 2, an insole 4 and a midsole 3, extending between the insole 4 and the outsole 2.
  • Figure 1 schematically illustrates an enlargement in elevation of a sole sole.
  • a plurality of filling particles 6 occupy part of the volume of the sole. At room temperature, these particles are in the solid state. Each of the cavities is usually occupied by a single particle. Occasionally, several particles may occupy the same cavity. The particles are distributed substantially uniformly in the body of the soleplate.
  • the filling particles 6 occupy between 15% and 60%, and more preferably between 25% and 35% of the volume of the sole.
  • An unfused sole has a plurality of cavities. Those on the outer surface 8 of the sole provide microreliefs, increasing the coefficient of friction of the sole. The edges produced by the cavities Updated open areas on the sole surface contribute to the increased coefficient of friction of the sole.
  • the cavity filling particles 5 are soluble in water. With the progressive wear of the sole, new cavities are gradually released. The particles are then brought into contact with the environment. As soon as the sole is in the presence of water or moisture, the particles are removed by dissolution.
  • the particles are not necessarily soluble in water. These are then evacuated by a mechanical effect. The newly released particles, during contact and soil friction phases, are ejected. Even if some particles remain hooked longer, with the wear of the sole around them, the holding effect diminishes and the particles then leave the remaining cavity portions.
  • the particles When released, the particles are removed from the cavities either by dissolution with a wet medium and / or by tearing due to the friction of the sole with the ground.
  • the microreliefs thus created can then fully enter in contact with the ground.
  • Each cavity then contributes to increasing the coefficient of friction.
  • the high density of cavities released on the surface of the sole contributes to producing a particularly adherent sole.
  • Salts preferably soluble in water, can be used to make the filling particles 6.
  • salts such as chlorates (NaCl) or perchlorate, potassium, ammonium or magnesium sulphates and in particular MgSO 4 and, more preferably, anhydrous magnesium sulphate are used.
  • the mean diameter of the particles 5 is between 0.01 mm and 1 mm and more preferably between 0.01 mm and 0.3 mm and even more preferably between 0.01 and 0.1 mm.
  • the invention also provides a method of manufacturing an outer sole of a shoe as described in the preceding paragraphs.
  • One of the key phases of the process concerns the incorporation of a plurality of filler particles 6 into the green elastomer mixture.
  • the elastomeric material with the added particles is mixed to form a substantially uniform hybrid material.
  • the resulting mixture is then placed in a mold-shaped sole to be vulcanized.
  • the temperatures and vulcanization times are substantially the same as for a conventional sole.
  • the filler particles added to the elastomeric material each occupy a volume that allows, during the vulcanization phase, to generate microcavities. These microcavities are distributed in the outsole. The presence of the particles makes it possible to form cavities without the need to use chemical additives that generate bubbles during the vulcanization phase.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

The invention relates to a shoe sole (1) comprising an outsole (2), an insole (4) and a midsole (3) extending between the insole (4) and the outsole (2), the outsole (2) consisting of an elastomer material comprising a plurality of cavities (5) filled with cavity-filling particles (6) in solid state at room temperature.

Description

SEMELLE ANTIDERAPANTE  NON-SLIP SOLE
DOMAINE TECHNIQUE DE L'INVENTION TECHNICAL FIELD OF THE INVENTION
[0001] La présente invention concerne une semelle antidérapante. Elle concerne plus particulièrement une semelle comportant une pluralité de cavités occupées par des particules de remplissage. L'invention concerne également un procédé de fabrication d'une telle semelle. The present invention relates to a non-slip sole. It relates more particularly to a sole having a plurality of cavities occupied by filling particles. The invention also relates to a method of manufacturing such a sole.
ETAT DE LA TECHNIQUE ANTERIEURE STATE OF THE PRIOR ART
[0002] On connaît aujourd'hui de nombreux types de semelles de chaussures dotées de propriétés antidérapantes. [0002] Many types of shoe soles are known today with anti-slip properties.
[0003] On connaît par exemple le document FR2843685 qui décrit une chaussure aquatique pourvue d'une surface inférieure rugueuse. Cette surface comporte un état de surface antiglisse constitué par un tissu élastique enrobé dans une mince couche de matériau caoutchoutique. For example, document FR2843685 discloses an aquatic shoe provided with a rough bottom surface. This surface has a non-slip surface state consisting of an elastic fabric embedded in a thin layer of rubber material.
[0004] On connaît également le document FR 2722376 qui concerne une surface antidérapante du type comprenant un réseau de sculptures en relief. La solution décrite consiste en ce que lesdites sculptures sont formées d'un réseau transversal de canaux étroits s'étendant d'un bord à l'autre de façon discontinue, un canal étant défini par des lignes en forme de U. Also known is the document FR 2722376 which relates to a non-slip surface of the type comprising a network of relief sculptures. The described solution consists in that said sculptures are formed of a transverse network of narrow channels extending from one edge to the other discontinuously, a channel being defined by U-shaped lines.
[0005] Le document FR2709929 décrit une semelle antidérapante comportant des dents en saillie par rapport à la semelle et des plots élastiques également en saillie s'étendant entre les dents et ayant une hauteur au repos sensiblement égale à celle des dents. Document FR2709929 discloses a non-slip sole having teeth protruding from the sole and resilient studs also protruding extending between the teeth and having a height at rest substantially equal to that of the teeth.
[0006] Le document FR2661322 concerne une semelle rigide en polychlorure de vinyle (PVC) du type comprenant un corps de semelle muni d'au moins un insert en contact avec le sol et formant surface d'usure. Les inserts sont en polychlorure de vinyle de dureté moins élevée que celle du polychlorure de vinyle du corps de la semelle. The document FR2661322 relates to a rigid sole of polyvinyl chloride (PVC) of the type comprising a sole body provided with at least one insert in contact with the ground and forming a wear surface. The inserts are made of polyvinyl chloride of lower hardness than the polyvinyl chloride of the body of the sole.
[0007]Toutes ces solutions ont un point commun : l'efficacité des moyens antidérapants se dégrade au fur et à mesure de l'usure de la semelle. All these solutions have one thing in common: the effectiveness of non-slip means degrades as and when the wear of the sole.
[0008] Il existe donc un besoin pour une semelle ayant des propriétés antidérapantes efficaces et durables, malgré l'usure de la semelle. There is therefore a need for a sole having anti-slip properties effective and durable, despite the wear of the sole.
EXPOSE DE L'INVENTION SUMMARY OF THE INVENTION
[0009] Tout d'abord, un premier objet de l'invention consiste à prévoir une semelle pourvue de caractéristiques de frottement conférant de bonnes caractéristiques antidérapantes, en particulier sur des sols très lisses, sur des sols mouillés, ou sur la glace sèche ou mouillée. First, a first object of the invention to provide a sole provided with friction characteristics conferring good slip characteristics, especially on very smooth floors, on wet floors, or on dry ice or wet.
[0010] Un autre objet de l'invention consiste à prévoir une semelle antidérapante pour chaussure dont les caractéristiques antidérapantes perdurent malgré l'usure de la semelle. Another object of the invention is to provide a non-slip shoe sole whose non-slip characteristics persist despite the wear of the sole.
[0011] Pour ce faire, l'invention prévoit une semelle de chaussure comportant une semelle extérieure, une semelle intérieure et une semelle intercalaire, s'étendant entre la semelle intérieure et la semelle extérieure, la semelle extérieure étant constituée d'un matériau élastomère comportant une pluralité de cavités remplies par des particules de remplissage de cavité qui sont à l'état solide à température ambiante, une pluralité de cavités ouvertes formant des microreliefs répartis sur la surface externe de la semelle extérieure à l'état neuf, et pendant l'usure de la semelle, du fait de la répartition des cavités dans la masse de celle-ci, de nouvelles cavités étant progressivement libérées. To do this, the invention provides a shoe sole comprising an outsole, an insole and a midsole, extending between the insole and the outsole, the outsole being made of an elastomeric material. having a plurality of cavities filled with cavity-filling particles which are in the solid state at ambient temperature, a plurality of open cavities forming micro-reliefs distributed over the external surface of the outsole in the new state, and during wear of the sole, due to the distribution of the cavities in the mass thereof, new cavities being gradually released.
[0012] Les microreliefs générés par les portions de cavités présents en surface de la semelle procure un effet mécanique augmentant le coefficient de frottement de la semelle. Cet effet est particulièrement avantageux sur sol lisse, sur sol humide ou mouillé, et même sur la glace (sèche ou mouillée). The microreliefs generated by the cavities portions present on the surface of the sole provides a mechanical effect increasing the coefficient of friction of the the sole. This effect is particularly beneficial on smooth ground, wet or wet ground, and even on ice (dry or wet).
[0013] Lorsque la semelle est neuve, une pluralité de cavités sont présentes à la surface, augmentant le coefficient de frottement de la semelle. Pendant l'usure, du fait que les cavités sont réparties dans la masse de la semelle, de nouvelles cavités sont libérées progressivement, assurant le maintient du coefficient de frottement favorable. Il se produit ainsi un effet auto-régénérant des cavités qui assure une durabilité des propriétés d'adhérence, malgré l'usure de la semelle. When the sole is new, a plurality of cavities are present on the surface, increasing the coefficient of friction of the sole. During wear, because the cavities are distributed in the mass of the sole, new cavities are released gradually, ensuring the maintenance of the favorable coefficient of friction. There is thus a self-regenerating effect of the cavities which ensures a durability of the adhesion properties, despite the wear of the sole.
[0014] En plus de avantages liés aux performances anti-glissement, contrairement aux semelles mousses qui sont compressibles, les semelles selon l'invention forment une structure non compressible, procurant de nombreux avantages en terme de comportement mécanique. In addition to advantages related to anti-slip performance, unlike foam soles which are compressible, the soles according to the invention form a non-compressible structure, providing many advantages in terms of mechanical behavior.
[0015] Selon un mode de réalisation avantageux, les particules de remplissage de cavité sont solubles à l'eau. Ce mode de réalisation permet de réaliser une semelle dont la surface de contact avec le sol est parsemée de microcavités procurant un effet d'adhérence avec le sol. Dès que la semelle s'use, de nouvelles cavités et particules sont libérées afin de permettre la continuité des propriétés d'adhérence liées aux cavités. According to an advantageous embodiment, the cavity filling particles are soluble in water. This embodiment allows for a sole whose contact surface with the ground is dotted with microcavities providing a gripping effect with the ground. As soon as the sole wears out, new cavities and particles are released to allow continuity of the adhesion properties related to the cavities.
[0016] De manière avantageuse, les particules de remplissage sont des sels. Ce type de particules présente l'avantage d'une grande facilité de mélange avec les matériaux élastomères. [0016] Advantageously, the filling particles are salts. This type of particle has the advantage of great ease of mixing with the elastomeric materials.
[0017] Selon un mode de réalisation avantageux, les particules de remplissage sont choisies parmi la liste comprenant des chlorates ou perchlorate, des sulfates de potassium, d'ammonium, ou de magnésium et en particulier le MgS04 et plus préférentiellement le sulfate de magnésium anhydré. According to an advantageous embodiment, the filler particles are chosen from the list comprising chlorates or perchlorate, potassium, ammonium or magnesium sulphates and in particular MgSO 4 and more preferably anhydrous magnesium sulphate. .
[0018] Selon encore un mode de réalisation avantageux, le diamètre moyen des particules est compris entre 0,01 mm et 1 mm et plus préférentiellement entre 0,01 mm et 0,3mm et encore plus préférentiellement entre 0.01 et 0.1 mm. According to another advantageous embodiment, the average diameter of the particles is between 0.01 mm and 1 mm and more preferably between 0.01 mm and 0.3 mm and even more preferably between 0.01 and 0.1 mm.
[0019] De manière avantageuse, les cavités sont réparties dans le matériau élastomère de façon sensiblement homogène. Advantageously, the cavities are distributed in the elastomeric material in a substantially homogeneous manner.
[0020] Egalement de manière avantageuse, les particules de remplissage occupent entre 15% et 60% du volume de la semelle extérieure, et plus préférentiellement entre 25% et 35% du volume de la semelle extérieure. Also advantageously, the filling particles occupy between 15% and 60% of the volume of the outsole, and more preferably between 25% and 35% of the volume of the outsole.
[0021] L'invention prévoit également un procédé de fabrication d'une semelle de chaussure telle que préalablement décrite, dans lequel une pluralité de particules de remplissage sont incorporées dans un matériau élastomère et mélangées avec ce dernier afin de constituer un mélange sensiblement uniforme, le mélange obtenu étant ensuite vulcanisé dans un moule en forme de semelle extérieure spécifiquement prévu à cet effet. The invention also provides a method of manufacturing a shoe sole as previously described, in which a plurality of filler particles are incorporated in an elastomeric material and mixed with the latter to form a substantially uniform mixture, the resulting mixture is then vulcanized in an outer sole-shaped mold specifically provided for this purpose.
[0022] Ce procédé permet de fabriquer des semelles telles que préalablement décrites de façon simple et économique. This method makes it possible to manufacture insoles such as previously described simply and economically.
DESCRIPTION DES FIGURES DESCRIPTION OF THE FIGURES
[0023]Tous les détails de réalisation sont donnés dans la description qui suit, complétée par les figures 1 et 2, présentées uniquement à des fins d'exemples non limitatifs, et dans lesquelles: All the details of embodiment are given in the description which follows, supplemented by FIGS. 1 and 2, presented solely for purposes of non-limiting examples, and in which:
-la figure 1 est une représentation schématique agrandie d'un exemple d'une portion d'une semelle extérieure comportant des cavités et des particules de remplissage ;  FIG 1 is an enlarged schematic representation of an example of a portion of an outsole having cavities and filler particles;
-la figure 2 est une représentation schématique d'une coupe d'un exemple d'une semelle de chaussure. DESCRIPTION DETAILLEE DE L'INVENTION FIG 2 is a schematic representation of a section of an example of a shoe sole. DETAILED DESCRIPTION OF THE INVENTION
DEFINITIONS DEFINITIONS
[0024] Par « semelle extérieure » on entend la semelle d'usure, c'est-à-dire la partie de la semelle qui est en contact avec le sol. By "outsole" means the outsole, that is to say the part of the sole which is in contact with the ground.
Par « semelle intercalaire » ou « semelle intermédiaire », on entend la partie de la semelle qui s'étend sensiblement sous tout le pied, contre la semelle extérieure, et entre cette dernière et la semelle intérieure ou première. By "midsole" or "midsole" means the part of the sole which extends substantially under the entire foot, against the outsole, and between the latter and the insole or first.
Par « semelle intérieure » ou « première » ou « première de montage », on entend la partie de la semelle en contact avec le pied sous laquelle s'étendent successivement la semelle intercalaire et la semelle extérieure. By "insole" or "first" or "first of assembly" means the part of the sole in contact with the foot under which successively extend the midsole and the outsole.
[0025] La figure 2 illustre un exemple de semelle 1 de chaussure selon l'invention. Cette semelle comprend une semelle extérieure 2, une semelle intérieure 4 et une semelle intercalaire 3, s'étendant entre la semelle intérieure 4 et la semelle extérieure 2. La figure 1 illustre de façon schématique un agrandissement en élévation d'une semelle extérieure seule. [0025] Figure 2 illustrates an example of sole 1 of the shoe according to the invention. This sole comprises an outsole 2, an insole 4 and a midsole 3, extending between the insole 4 and the outsole 2. Figure 1 schematically illustrates an enlargement in elevation of a sole sole.
[0026] Une pluralité de particules 6 de remplissage occupent une partie du volume de la semelle. A température ambiante, ces particules sont à l'état solide. Chacune des cavités est généralement occupée par une particule unique. Occasionnellement, plusieurs particules peuvent occuper une même cavité. Les particules sont réparties sensiblement uniformément dans le corps de la semelle. Les particules 6 de remplissage occupent entre 15% et 60%, et plus préférentiellement entre 25% et 35 % du volume de la semelle. A plurality of filling particles 6 occupy part of the volume of the sole. At room temperature, these particles are in the solid state. Each of the cavities is usually occupied by a single particle. Occasionally, several particles may occupy the same cavity. The particles are distributed substantially uniformly in the body of the soleplate. The filling particles 6 occupy between 15% and 60%, and more preferably between 25% and 35% of the volume of the sole.
[0027] Une semelle non usée comporte une pluralité de cavités. Celles qui sont à la surface externe 8 de la semelle procurent des microreliefs, augmentant le coefficient de frottement de la semelle. Les arrêtes produites par les cavités ouvertes mises à jour à la surface de la semelle contribuent à l'augmentation du coefficient de frottement de la semelle. An unfused sole has a plurality of cavities. Those on the outer surface 8 of the sole provide microreliefs, increasing the coefficient of friction of the sole. The edges produced by the cavities Updated open areas on the sole surface contribute to the increased coefficient of friction of the sole.
[0028]Au fur et à mesure de l'usure, les cavités « en réserve » à l'intérieur de la semelle extérieure sont progressivement libérées. De nouveaux microreliefs apparaissent ainsi régulièrement, procurant un niveau élevé d'adhérence. Ainsi, malgré l'usure, les propriétés avantageuses de la semelle sont conservées sans dégradation des performances jusqu'à ce que la totalité des cavités en réserve aient été consommées. As and when wear, cavities "in reserve" inside the outsole are gradually released. New microreliefs appear regularly, providing a high level of adhesion. Thus, despite the wear, the advantageous properties of the sole are retained without degradation of performance until all the cavities in reserve have been consumed.
[0029]Selon un premier mode de réalisation de l'invention, les particules 6 de remplissage de cavité 5 sont solubles à l'eau. Avec l'usure progressive de la semelle, de nouvelles cavités sont peu à peu libérées. Les particules sont alors mises en contact avec l'environnement. Dès que la semelle est en présence d'eau ou d'humidité, les particules sont évacuées par dissolution. According to a first embodiment of the invention, the cavity filling particles 5 are soluble in water. With the progressive wear of the sole, new cavities are gradually released. The particles are then brought into contact with the environment. As soon as the sole is in the presence of water or moisture, the particles are removed by dissolution.
[0030] Selon un second mode de réalisation, les particules ne sont pas nécessairement solubles à l'eau. Celles-ci sont alors évacuées par un effet mécanique. Les particules nouvellement libérées, lors des phases de contact et de frottement avec le sol, sont éjectées. Même si certaines particules restent accrochées plus longtemps, avec l'usure de la semelle autour d'elles, l'effet de maintien s'amenuise et les particules quittent alors les portions de cavités restantes. According to a second embodiment, the particles are not necessarily soluble in water. These are then evacuated by a mechanical effect. The newly released particles, during contact and soil friction phases, are ejected. Even if some particles remain hooked longer, with the wear of the sole around them, the holding effect diminishes and the particles then leave the remaining cavity portions.
[0031] Ces deux modes de réalisation, qui sont avantageusement combinés, procurent un effet auto-régénérant, libérant progressivement de nouvelles cavités lorsque les particules sont libérées. Cette architecture permet d'assurer la pérennité des propriétés d'adhérence liées aux cavités. These two embodiments, which are advantageously combined, provide a self-regenerating effect, gradually releasing new cavities when the particles are released. This architecture makes it possible to ensure the durability of the adhesion properties related to the cavities.
[0032] Lorsqu'elles sont libérées, les particules sont évacuées des cavités soit par dissolution avec un milieu humide et/ou par un arrachement dû au frottement de la semelle avec le sol. Les microreliefs ainsi créés peuvent alors pleinement entrer en contact avec le sol. Chaque cavité contribue alors à augmenter le coefficient de frottement. La forte densité de cavités libérées à la surface de la semelle contribue à produire une semelle particulièrement adhérente. When released, the particles are removed from the cavities either by dissolution with a wet medium and / or by tearing due to the friction of the sole with the ground. The microreliefs thus created can then fully enter in contact with the ground. Each cavity then contributes to increasing the coefficient of friction. The high density of cavities released on the surface of the sole contributes to producing a particularly adherent sole.
[0033] Des sels, de préférence solubles dans l'eau, peuvent être utilisés pour réaliser les particules 6 de remplissage. On utilise par exemple des sels tels que des chlorates (NaCI) ou perchlorate, des sulfates de potassium, d'ammonium, ou de magnésium et en particulier le MgSO4 et plus préférentiellement le sulfate de magnésium anhydré. Salts, preferably soluble in water, can be used to make the filling particles 6. For example, salts such as chlorates (NaCl) or perchlorate, potassium, ammonium or magnesium sulphates and in particular MgSO 4 and, more preferably, anhydrous magnesium sulphate are used.
[0034]Le diamètre moyen des particules 5 est compris entre 0,01 mm et 1 mm et plus préférentiellement entre 0,01 mm et 0,3mm et encore plus préférentiellement entre 0.01 et 0.1 mm. The mean diameter of the particles 5 is between 0.01 mm and 1 mm and more preferably between 0.01 mm and 0.3 mm and even more preferably between 0.01 and 0.1 mm.
[0035] L'invention prévoit également un procédé de fabrication d'une semelle extérieure de chaussure telle que décrite dans les paragraphes précédents. The invention also provides a method of manufacturing an outer sole of a shoe as described in the preceding paragraphs.
[0036] Une des phases clés du procédé concerne l'incorporation au mélange élastomère cru d'une pluralité de particules 6 de remplissage. Le matériau élastomère avec les particules ajoutées sont mélangés afin de constituer un matériau hybride sensiblement uniforme. One of the key phases of the process concerns the incorporation of a plurality of filler particles 6 into the green elastomer mixture. The elastomeric material with the added particles is mixed to form a substantially uniform hybrid material.
[0037] Le mélange obtenu est ensuite placé dans un moule en forme de semelle pour y être vulcanisé. Les températures et les temps de vulcanisation sont sensiblement les mêmes que pour une semelle conventionnelle. The resulting mixture is then placed in a mold-shaped sole to be vulcanized. The temperatures and vulcanization times are substantially the same as for a conventional sole.
[0038] Les particules de remplissage ajoutées au matériau élastomère occupent chacune un volume qui permet, lors de la phase de vulcanisation, de générer des microcavités. Ces microcavités sont réparties dans la semelle extérieure. La présence des particules permet de former des cavités sans avoir besoin d'utiliser d'additifs chimiques générateurs de bulles lors de la phase de vulcanisation. Numéros de référence employés sur les figures The filler particles added to the elastomeric material each occupy a volume that allows, during the vulcanization phase, to generate microcavities. These microcavities are distributed in the outsole. The presence of the particles makes it possible to form cavities without the need to use chemical additives that generate bubbles during the vulcanization phase. Reference numbers used in the figures
Semelle Sole
Semelle extérieure  Outsole
Semelle intercalaire  Midsole
Semelle intérieure  Insole
Cavités  cavities
Particules  particles
Cavités ouvertes  Open cavities
Surface externe de semelle extérieure  External outsole surface
Talon  Heel
Zone de la tige Stem area

Claims

REVENDICATIONS
1 . Semelle (1 ) de chaussure comportant une semelle extérieure (2), une semelle intérieure (4) et une semelle intercalaire (3), s'étendant entre la semelle intérieure (4) et la semelle extérieure (2), la semelle extérieure (2) étant constituée d'un matériau élastomère comportant une pluralité de cavités (5) remplies par des particules (6) de remplissage de cavité qui sont à l'état solide à température ambiante, caractérisé en ce que une pluralité de cavités ouvertes (7) forment des microreliefs répartis sur la surface externe (8) de la semelle extérieure à l'état neuf, et en ce que pendant l'usure de la semelle, du fait de la répartition des cavités dans la masse de celle-ci, de nouvelles cavités sont progressivement libérées. 1. Shoe sole (1) comprising an outsole (2), an insole (4) and a midsole (3), extending between the insole (4) and the outsole (2), the outsole ( 2) being made of an elastomeric material having a plurality of cavities (5) filled with cavity filling particles (6) which are in the solid state at room temperature, characterized in that a plurality of open cavities (7) ) form microreliefs distributed on the external surface (8) of the outer sole when new, and in that during the wear of the soleplate, due to the distribution of the cavities in the mass of the latter, of new cavities are gradually released.
2. Semelle (1 ) selon la revendication 2, dans laquelle les particules (6) de remplissage de cavité (5) sont solubles à l'eau. 2. Sole (1) according to claim 2, wherein the cavity filling particles (6) (5) are soluble in water.
3. Semelle (1 ) selon l'une des revendications 1 ou 2, dans laquelle les particules (6) sont des sels. 3. Sole (1) according to one of claims 1 or 2, wherein the particles (6) are salts.
4. Semelle (1 ) selon l'une quelconque des revendications 1 à 3, dans laquelle les particules (6) de remplissage sont choisies parmi la liste comprenant des chlorates ou perchlorate, des sulfates de potassium, d'ammonium, ou de magnésium et en particulier le MgS04 et plus préférentiellement le sulfate de magnésium anhydré. The soleplate (1) according to any of claims 1 to 3, wherein the filler particles (6) are selected from the list comprising chlorates or perchlorate, potassium, ammonium, or magnesium sulfates and in particular MgSO 4 and more preferably anhydrous magnesium sulfate.
5. Semelle (1 ) selon l'une quelconque des revendications précédentes, dans laquelle le diamètre moyen des particules (5) est compris entre 0,01 mm et 1 mm et plus préférentiellement entre 0,01 mm et 0,3mm et encore plus préférentiellement entre 0.01 et 0.1 mm. 5. Sole (1) according to any one of the preceding claims, wherein the average diameter of the particles (5) is between 0.01 mm and 1 mm and more preferably between 0.01 mm and 0.3 mm and even more preferably between 0.01 and 0.1 mm.
6. Semelle (1 ) selon l'une quelconque des revendications précédentes, dans laquelle les cavités (5) sont réparties dans le matériau élastomère de façon sensiblement homogène. Insole (1) according to any one of the preceding claims, in which the cavities (5) are distributed in the elastomer material in such a way that substantially homogeneous.
7. Semelle (1 ) selon l'une quelconque des revendications 1 à 6, dans laquelle les particules (6) de remplissage occupent entre 15% et 60% du volume de la semelle extérieure. 7. Sole (1) according to any one of claims 1 to 6, wherein the particles (6) filling occupy between 15% and 60% of the volume of the outsole.
8. Semelle (1 ) selon l'une quelconque des revendications 1 à 7, dans laquelle les particules (6) de remplissage occupent entre 25 % et 35 % du volume de la semelle extérieure. 8. Sole (1) according to any one of claims 1 to 7, wherein the particles (6) filling occupy between 25% and 35% of the volume of the outsole.
9. Procédé de fabrication d'une semelle de chaussure selon l'une des revendications 1 à 8, dans lequel une pluralité de particules (6) de remplissage sont incorporées dans un matériau élastomère et mélangées avec ce dernier afin de constituer un mélange sensiblement uniforme, le mélange obtenu étant ensuite vulcanisé dans un moule en forme de semelle extérieure spécifiquement prévu à cet effet. 9. A method of manufacturing a shoe sole according to one of claims 1 to 8, wherein a plurality of particles (6) of filling are incorporated in an elastomeric material and mixed with the latter to form a substantially uniform mixture the resulting mixture is then vulcanized in an outer sole-shaped mold specifically provided for this purpose.
EP18710536.6A 2017-03-08 2018-03-06 Anti-slip sole Active EP3592166B1 (en)

Applications Claiming Priority (2)

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FR1770223A FR3063603A1 (en) 2017-03-08 2017-03-08 NON-SLIP SOLE
PCT/IB2018/051441 WO2018163067A1 (en) 2017-03-08 2018-03-06 Non-slip sole

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EP3592166B1 EP3592166B1 (en) 2021-05-05

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USD911683S1 (en) * 2017-09-14 2021-03-02 Puma SE Shoe
USD855953S1 (en) * 2017-09-14 2019-08-13 Puma SE Shoe sole element
USD953709S1 (en) 1985-08-29 2022-06-07 Puma SE Shoe
USD850766S1 (en) 2017-01-17 2019-06-11 Puma SE Shoe sole element
CN110913715B (en) 2017-08-11 2022-05-27 彪马欧洲股份公司 Method for producing shoes
USD975417S1 (en) 2017-09-14 2023-01-17 Puma SE Shoe
WO2019206435A1 (en) 2018-04-27 2019-10-31 Puma SE Shoe, in particular a sports shoe
WO2020125963A1 (en) 2018-12-18 2020-06-25 Puma SE Shoe, in particular sports shoe, and method for producing same
USD944504S1 (en) 2020-04-27 2022-03-01 Puma SE Shoe
JP7407301B2 (en) * 2020-10-23 2023-12-28 株式会社アシックス Anti-slip members for fitted items or sports equipment, fitted items and sporting goods

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US20200008518A1 (en) 2020-01-09
EP3592166B1 (en) 2021-05-05
WO2018163067A1 (en) 2018-09-13
FR3063603A1 (en) 2018-09-14
CN110325072A (en) 2019-10-11

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