WO2017144743A1 - Semelle de chaussure - Google Patents

Semelle de chaussure Download PDF

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Publication number
WO2017144743A1
WO2017144743A1 PCT/ES2016/070720 ES2016070720W WO2017144743A1 WO 2017144743 A1 WO2017144743 A1 WO 2017144743A1 ES 2016070720 W ES2016070720 W ES 2016070720W WO 2017144743 A1 WO2017144743 A1 WO 2017144743A1
Authority
WO
WIPO (PCT)
Prior art keywords
midsole
sole
base
footwear
strips
Prior art date
Application number
PCT/ES2016/070720
Other languages
English (en)
Spanish (es)
Inventor
Antonio OCHOA DOMÍNGUEZ
Álvaro OCHOA DOMÍNGUEZ
Original Assignee
Calzados Laro, 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
Application filed by Calzados Laro, S.A. filed Critical Calzados Laro, S.A.
Publication of WO2017144743A1 publication Critical patent/WO2017144743A1/fr

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
    • A43B13/12—Soles with several layers of different materials

Definitions

  • the present invention relates to a sole of footwear formed by a base of hard material and a midsole of bonded textile material, jute type.
  • the midsole is attached to the cut or upper part of the footwear, by means of a sewing called sewn. Its main feature is that the base is solidly attached to the midsole and is configured in strips alternated with free spaces, so that foot perspiration is favored.
  • a second phase in this evolution has been the use of soles with various types of materials and different densities to improve the performance of footwear, especially in terms of the lightness and comfort of footwear, evolution that was supported by scientific studies on the anatomy and the phenomena related to the dynamics in the march of the human being.
  • materials of expanded type and with high energy absorption capacity and shock absorption when walking are used as polyurethane-type polymers (PU) expanded, ethylene vinyl acetate (EVA) or mixtures of rubbers with certain elastomeric properties.
  • PU polyurethane-type polymers
  • EVA ethylene vinyl acetate
  • materials such as those described above are used, but of greater density and better mechanical properties, especially in terms of resistance to wear, tear or slippage.
  • jute as a material for the sole, has been restricted mainly to fashion footwear, being mainly used for its good properties of perspiration and evacuation of heat and sweat, as well as for its lightness and adaptation to the foot.
  • the mechanical and resistance properties of this material are not very high and contact with the ground causes a rapid and accentuated friction wear.
  • jute is placed in the footwear as a midsole, in contact with the foot, that is, as an intermediate part between the cut and the base, thus avoiding the direct contact of jute with the ground and, therefore, wear.
  • the bases or plants that are placed are usually made of rubber.
  • One of the ways of joining the base to the midsole is through a mold that provides heat and pressure, where a mixture of uncrosslinked rubber is placed.
  • the rubber then, undergoes a polymerization process, favoring the creation of bonds due to the presence of sulfur, called vulcanized.
  • vulcanized sulfur
  • rubber becomes a thermoset, elastomeric material, with a definitive shape according to the design of the mold being used.
  • the rubber or other resistant polymer material plant is fixed to the jute by gluing using adhesives.
  • the quality and standardization of the vulcanization and / or bonding process determine the consistency of the joint and, therefore, the final durability of the sole.
  • the sole that joins the jute occupies the entire plant or base, surface in contact with the ground, which virtually reduces the total transpiration capacity of jute at the plantar level and remarkably increases the weight and stiffness of the sole, making walking and flexion difficult when walking.
  • the present invention substantially improves this perspiration process and the final design, so that the polymer material that is fixed and shaped in the sole does not occupy the entire surface of the plant, only the main support areas in contact with the ground. Therefore, the perspiration capacity of jute is maintained at the plantar level, providing, in addition, greater flexibility and less stiffness or resistance to torsion of the sole due to a design in the form of channels and discontinuous strips, all of which resulting in an increase in comfort for the user. DESCRIPTION OF THE INVENTION
  • the present invention relates to a sole of footwear formed by a midsole of textile material and a base of elastomeric material.
  • the midsole material is jute, hemp, esparto or the like
  • the base material is a polyurethane, an ethylene vinyl acetate or a mixture of rubbers, among others, selecting the material based on mechanical properties desired in terms of strength, stiffness or weight, for example.
  • the base is solidly attached to the midsole so that a sole of two materials is formed: one with good mechanical properties, used in the base, and another with good properties for direct contact with the foot at the level of perspiration, used in the midsole
  • the base is configured by strips of material that alternate with free zones, so that part of the midsole is in direct contact with the outside to allow perspiration of the foot.
  • the connection of the sole to the midsole can be carried out by different methods, pursuing the main characteristic that the union is uniform and permanent, without detaching parts of the base.
  • a type of joint considered is by direct injection in a liquid state of the sole on the midsole and later formed by cooling. This process allows the sole material to intermingle with the fibers of the midsole material to, once solidified, create a lasting bond.
  • Another type of union is through a process of vulcanizing the base on the midsole through a mold that provides heat and pressure, producing an effect similar to that of the direct injection.
  • connection of the sole to the midsole is by adhesive.
  • connection of the sole to the midsole is by mechanical means, such as screws, staples, nails or the like.
  • the design of the strips of material of the base can be configured in the form of a single continuous strip, several discontinuous strips, sections of different geometries or a combination of any of the above.
  • variable geometry of the strips of material of the base can be used to create widenings of the required size in which to implement designs or logos, thus having a wide flexibility in terms of configuration.
  • FIG. 1 represents a side view of the shoe sole of the invention.
  • the present invention relates to a sole intended to be implemented in fashionable footwear formed by a base (1) of elastomeric material and a midsole (2) of bonded textile material, jute type, which joins the cut or upper part of the footwear by means of a sewing called embossed.
  • Figure 1 shows the sole of the invention formed by the union of a base (1) with a midsole (2). It can be seen that the base (1) has a thickness that prevents direct contact of the midsole (2) with the floor, providing a stiffness to the footwear that results in greater durability.
  • the part of the plant or base (1) which is the material that is in contact with the ground when walking and during walking, consists of a series of discontinuous strips (3) or inserts These strips (3) are made of high strength elastomer or polymer material, polyurethane (PU), thermopolyurethane (TPU) or thermoplastic (TR).
  • PU polyurethane
  • TPU thermopolyurethane
  • TR thermoplastic
  • the discontinuous strips (3) of the base (1) are attached to the midsole jute (2), by procedures such as direct injection of the polymer, vulcanized of the polymer, by means of adhesive, by mechanical means, such as staples, screws or sprigs , among others.
  • the choice of the method of union is based on finding a union that is durable and consistent, so that it is the polymer material that comes into direct contact with the ground during the march, instead of jute. This prevents the rapid deterioration of footwear by direct contact of jute with the ground.
  • the base (1) of polymer material, located on the floor and, therefore, in contact with the ground, is not formed by a monobloc or continuous material that occupies the entire sole of the foot and the entire surface of the jute of the midsole (2) in its lower part.
  • the base (1) is formed by a series of discontinuous strips (3) that provide an evident improvement in the properties and functionalities of the sole and footwear as a whole.
  • PU polyurethane
  • TPU thermopolyurethane
  • TR thermoplastic
  • fixation of the polymer and its formulation provide a durable bonding system and a technical material with high mechanical performance, with high resistance to friction and wear on contact with the ground when walking.

Landscapes

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

Abstract

L'invention concerne une semelle de chaussure formée d'une semelle intercalaire en matière textile et d'une base en matière élastomère, dans laquelle, de préférence, la matière de la semelle intercalaire est sélectionnée parmi la jute, le chanvre, la sparte ou similaire, à la recherche d'une matière présentant des propriétés satisfaisantes pour le contact direct avec le pied au niveau de la transpiration, et la matière de base est sélectionnée parmi un polyuréthane, un éthylène-acétate de vinyle, ou un mélange de caoutchoucs, entre autres, à la recherche d'une matière présentant des propriétés mécaniques satisfaisantes souhaitées en termes de résistance, rigidité ou poids, par exemple, la base étant solidement reliée à la semelle intercalaire et formée de franges de matière qui alternent avec des zones libres qui permettent la transpiration du pied.
PCT/ES2016/070720 2016-02-22 2016-10-11 Semelle de chaussure WO2017144743A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ES201630211U ES1152408Y (es) 2016-02-22 2016-02-22 Suela de calzado
ESU201630211 2016-02-22

Publications (1)

Publication Number Publication Date
WO2017144743A1 true WO2017144743A1 (fr) 2017-08-31

Family

ID=55440525

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/ES2016/070720 WO2017144743A1 (fr) 2016-02-22 2016-10-11 Semelle de chaussure

Country Status (2)

Country Link
ES (1) ES1152408Y (fr)
WO (1) WO2017144743A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1170744A (en) * 1965-10-05 1969-11-12 Clarks Ltd Improvements relating to Footwear
ES168814U (es) * 1971-05-11 1971-09-16 Troyas Oses Luis Dispositivo para la venta automatica de impresos.
EP2345339A2 (fr) * 2010-01-18 2011-07-20 Hannes Giesswein Chaussure en matériau textile et semelle en latex
WO2015101929A1 (fr) * 2014-01-03 2015-07-09 Vibram S.P.A. Semelle résistant à la perforation et son procédé de fabrication
US20150257475A1 (en) * 2014-03-13 2015-09-17 Nike, Inc. Article of Footwear For Athletic And Recreational Activities

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1170744A (en) * 1965-10-05 1969-11-12 Clarks Ltd Improvements relating to Footwear
ES168814U (es) * 1971-05-11 1971-09-16 Troyas Oses Luis Dispositivo para la venta automatica de impresos.
EP2345339A2 (fr) * 2010-01-18 2011-07-20 Hannes Giesswein Chaussure en matériau textile et semelle en latex
WO2015101929A1 (fr) * 2014-01-03 2015-07-09 Vibram S.P.A. Semelle résistant à la perforation et son procédé de fabrication
US20150257475A1 (en) * 2014-03-13 2015-09-17 Nike, Inc. Article of Footwear For Athletic And Recreational Activities

Also Published As

Publication number Publication date
ES1152408U (es) 2016-03-10
ES1152408Y (es) 2016-05-31

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