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WO2010084367A1 - Semelle amortissante pour article chaussant et son procédé de production - Google Patents

Semelle amortissante pour article chaussant et son procédé de production Download PDF

Info

Publication number
WO2010084367A1
WO2010084367A1 PCT/IB2009/000105 IB2009000105W WO2010084367A1 WO 2010084367 A1 WO2010084367 A1 WO 2010084367A1 IB 2009000105 W IB2009000105 W IB 2009000105W WO 2010084367 A1 WO2010084367 A1 WO 2010084367A1
Authority
WO
WIPO (PCT)
Prior art keywords
sole
fact
rubber
lower mould
holes
Prior art date
Application number
PCT/IB2009/000105
Other languages
English (en)
Inventor
Marco Bramani
Original Assignee
Vibram S.P.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 Vibram S.P.A. filed Critical Vibram S.P.A.
Priority to PCT/IB2009/000105 priority Critical patent/WO2010084367A1/fr
Publication of WO2010084367A1 publication Critical patent/WO2010084367A1/fr

Links

Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/14—Soles; Sole-and-heel integral units characterised by the constructive form
    • A43B13/18—Resilient soles
    • A43B13/20—Pneumatic soles filled with a compressible fluid, e.g. air, gas
    • A43B13/206—Pneumatic soles filled with a compressible fluid, e.g. air, gas provided with tubes or pipes or tubular shaped cushioning members
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
    • B29D35/122—Soles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D35/00—Producing footwear
    • B29D35/12—Producing parts thereof, e.g. soles, heels, uppers, by a moulding technique
    • B29D35/128—Moulds or apparatus therefor

Definitions

  • the invention relates to a shock-absorbing sole for footwear and a process for realising the sole, and, more in detail, a rubber sole having a shock- absorbing effect featuring holes in the thickness thereof of various sizes, shapes and positions, possibly filled with another softer material, and a process for realising the holes in a rubber sole.
  • soles Some types of sole have been known for some time having devices incorporated in the thickness of the sole suitable for effectively absorbing shocks sustained by the foot in the impact thereof with the ground, as well as being adapted to colour the sole of the shoe originally or variously conformed such as to satisfy the aesthetic tastes of the consumer.
  • soles are present on the market which internally feature shock-absorbing cushions made of various materials, colours and shapes and filled with fluids or gels of various natures. In this way an effective absorption of the traumas to which the foot is subject is obtained, and what is more the sole of the footwear is aesthetically attractive.
  • the technical aim of the present invention is to improve on the prior art in the sector of manufacturing soles for footwear.
  • one object of the present invention is to realise a sole featuring, in its thickness, holes that enable a reduction in the mechanical stress suffered throughout the foot and in particular in the rear part of the heel.
  • a further object of the present invention is to realise a sole that is distinguished by a greater absorbing capacity of the forces of impact on the foot and the shocks to which it is subjected.
  • a further object of the present invention is to realise a sole which features holes suitable for offering new levels of comfort.
  • a further object of the present invention is to realise a sole which features holes suitable for offering new perspectives in aesthetics and design.
  • a further object of the present invention is to increase the flexibility of the sole in the rear part of the heel, or also over the entire sole.
  • a further object of- the present invention is to provide an original style choice.
  • a further object of the present invention is to realise a sole which is suited to both sports footwear and casual footwear, and more generally which is suitable for all types of footwear.
  • a further object of the present invention is to enable an arrangement of holes in both the tread and the heel .
  • a further object of the present invention is to be able to make holes in soles of various materials, among which rubber, plastic materials etc.
  • a further object of the present invention consists in providing especially light soles of great thickness.
  • a still further object of the present invention is to realise a compression-moulding process of soles for footwear which is simple and quick.
  • a further object of the present invention is to provide a process for realising a sole for footwear which features special aesthetic aspects and high levels of comfort.
  • a further object of the present invention is to realise a compression-moulding process which enables use of innovative materials that are also different from those normally used for footwear soles with holes.
  • a further object of the present invention is to contemporaneously obtain moulding and vulcanising processes of the material the sole is made of.
  • a further object of the present invention is to reduce the manufacturing costs of the sole.
  • figure 1 is a lateral view of the sole of the present invention featuring holes in a thickness thereof
  • figure 2 is a lateral view of a further embodiment of the sole of the present invention, featuring holes in the thickness thereof
  • figure 3 is a perspective view of the lower mould for the compression-moulding process of the sole in accordance with the present invention
  • figure 4 is a further perspective view of the lower mould of figure 3, during the stage of filling the mould with a first portion of material to be moulded
  • figure 5 is a perspective view of the same lower mould, during the stage of insertion of the bars for the moulding process of the invention
  • figure 6 is a perspective view of the lower mould with the bars completely inserted therein
  • figure 7 is a perspective view of the lower mould during the covering stage of the bars with a second portion of material to be moulded
  • figure 8 is a perspective view illustrating the stage of extraction
  • reference number 1 denotes a shock-absorbing sole of the present invention.
  • the sole 1 features, in its thickness 2, one or more through-holes 3 passing through the thickness 2, in a substantially transversal direction T with respect to the sole 1.
  • the holes 3 can be present in the rear zone 4 of the sole 1, in a front zone or a central zone, or can be distributed along the whole longitudinal axis L of the sole 1.
  • the holes 3 can be aligned along a same plane, as in figure 1, or can follow the profile shape of the sole 1, as in figure 2.
  • the sole 1 is made of a substantially elastically yielding material which is particularly similar to natural or synthetic rubber, or mixtures of rubber and its derivatives.
  • it can be of a natural rubber, a synthetic rubber, a styrole rubber, a styrene-butadiene rubber, a poly- butadiene rubber, a nitryl rubber, a butylic rubber, a foam rubber and various mixtures of rubber or similar materials.
  • the holes 3 can advantageously be made in both the tread 5 of the sole 1 and in the heel, which can be made of polyurethane, ethyl-vinyl-acetate, etc. It is further specified that it is possible to realise the holes 3 in soles made of various materials, among which rubber, plastic materials, polymers and so on.
  • the holes 3 can be advantageously filled with a further component, made of rubber or another material, having the same characteristics of the material that the sole 1 is made of, or featuring other characteristics, e.g. the filling material can be more yielding than the surrounding material.
  • the holes 3 can have any transversal section, e.g. round, oval, square or another shape.
  • the holes 3 can internally have the same colouring as the surrounding sole 1, or can have different colours .
  • the holes 3 can be made in the soles of various types of footwear, either sporting or casual and more generally all types of footwear.
  • the production process for obtaining the sole 1, which the present invention relates to is in particular a compression-moulding process, developed in relation to the type of material the sole 1 is composed of.
  • the process, illustrated in figures 3 to 9 is performed at a temperature comprised between 140-190 0 C, and preferably at a temperature of between 160° and 180°.
  • the temperature can vary according to the material used, the composition thereof and the size of the object to be produced.
  • the process for realising the sole 1 of the present invention actuates the stages as set down herein below.
  • a lower mould is prepared, denoted by 10 in the figures, which follows the geometry of the lower portion of the sole 1 to be made, and thus defines a sort of moulding chamber.
  • the lower mould 10 has lateral openings 10a which correspond, both in the dimensions thereof, and in the positioning thereof, to the holes 3 which must be realised in the sole 1.
  • one or more bars are also used, denoted by 11, intended to realise the holes 3 in the thickness 2 of the sole 1.
  • the bars 11 are preferably made of metal, or in another material suitable for the purpose, and have respective external diameters which are equal to those of the holes 3 to be obtained in the sole 1.
  • a first portion, denoted by number 12, of the rubber material to be used for realising the sole 1 is deposited internally of the lower mould 10.
  • the first portion 12 is preferably shaped as a substantially rectangular sheet, or another shape, having dimensions and thickness which are chosen according to the sole to be realised.
  • the bars 11 are inserted internally of the lower mould 10, via the lateral openings 10a, in a substantially transversal direction T with respect to the sole 1 and across the whole width of the sole 1 (as illustrated in figure 6) .
  • a stage of the process then follows in which a second portion 13 of the rubber material for realising the sole 1 is deposited internally of the lower mould (10) , which second portion 13 is also made of a sheet of a substantially rectangular shape or another specially selected shape; the second portion 13 wholly or partially covers the bars 11 positioned internally of the lower mould 10 and passing through the thickness 2 of the sole 1.
  • the lower mould 10 is closed with an upper mould (not illustrated in the figures) which corresponds to the lower portion of the sole 1 (i.e. the tread 5), and the compression- moulding process begins, at high temperature, between 140-190 0 C, and preferably between 160° and 180°, for a variable time from 1 to 30 minutes and sufficient, on the basis of the material used, for obtaining the sole 1.
  • the rubber expands internally of the mould by compression and heating, and takes on the desired shape of the sole 1, featuring the holes 3 which form thanks to the presence of the bars 11.
  • the rubber-heating modes can vary in relation to the type of plant used: in more detail, the moulds can be heated before or after the positioning of the material and by means of jets of hot steam, hot water, electric resistance elements or any other heating devices, generally used for this purpose.
  • the lower mould 10 and the upper mould are distanced from one another, such as to open the moulding chamber (figure 8), and the bars 11 that have formed the holes 3 are extracted laterally (figure 9) . At the end of the process the sole 1 is thus completely formed.
  • the rubber material is cooled.
  • the cooling process can be done following the methods in general use.
  • the material used for realising the sole can be rubber or another material suited to the production of a sole with holes obtained by means of the above-described process.
  • the sole of the present invention made of a rubber- type material and provided with the above-described holes, enables impact stresses on the foot to be considerably reduced, thanks to the elastic properties of the material and the special conformation of the sole. In this way the user's comfort when using the footwear is considerably improved, as well as the flexibility of the sole and the lightness thereof.
  • a further advantage obtained with the present invention consists in the capacity to keep these elastic properties over a longer period of time, reducing the ageing of the sole and thus the shoe itself .
  • the sole of the invention is distinguished by particularly pleasing and innovative aesthetic characteristics, obtained with decidedly lower production costs with respect to traditional technologies .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Abstract

L'invention concerne une semelle (1), et en particulier, une semelle en caoutchouc dotée de trous (3), lesdits trous traversant l'épaisseur (2) de la semelle (1) dans une direction sensiblement transversale (T) à la semelle (1), ainsi qu'un procédé d'obtention de la semelle (1) et des trous (3) au moyen d'un procédé de moulage par compression.
PCT/IB2009/000105 2009-01-22 2009-01-22 Semelle amortissante pour article chaussant et son procédé de production WO2010084367A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/IB2009/000105 WO2010084367A1 (fr) 2009-01-22 2009-01-22 Semelle amortissante pour article chaussant et son procédé de production

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2009/000105 WO2010084367A1 (fr) 2009-01-22 2009-01-22 Semelle amortissante pour article chaussant et son procédé de production

Publications (1)

Publication Number Publication Date
WO2010084367A1 true WO2010084367A1 (fr) 2010-07-29

Family

ID=41314550

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2009/000105 WO2010084367A1 (fr) 2009-01-22 2009-01-22 Semelle amortissante pour article chaussant et son procédé de production

Country Status (1)

Country Link
WO (1) WO2010084367A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTV20110043A1 (it) * 2011-03-25 2012-09-26 Thermoshoe Di Baldin E C S N C "metodo per la realizzazione di calzature, particolarmente per uso ospedaliero"
WO2018095502A1 (fr) * 2016-11-22 2018-05-31 Puma SE Chaussure, notamment chaussure de sport, et son procédé de fabrication
WO2019214815A1 (fr) * 2018-05-08 2019-11-14 Puma SE Procédé de fabrication d'une semelle de chaussure, en particulier de chaussure de sport
IT202100013616A1 (it) * 2021-05-25 2022-11-25 Diadora Spa Suola per calzature e metodo di realizzazione di tale suola
US11744322B2 (en) 2018-05-08 2023-09-05 Puma SE Sole of a shoe, particularly an athletic shoe
US12109775B2 (en) 2021-12-22 2024-10-08 Puma SE Method for producing a sole of a shoe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2100492A (en) * 1933-10-23 1937-11-30 Converse Rubber Company Pneumatic sheet material and method of making
US2983056A (en) * 1959-05-12 1961-05-09 Steven A Murawski Pneumatic foot wear
FR2088626A5 (fr) * 1970-04-20 1972-01-07 Paritzky Ets
US20040211088A1 (en) * 2003-04-25 2004-10-28 Volkart Lauro Alvicio Sport shoe with impact absorber system
US20080034615A1 (en) * 2004-09-30 2008-02-14 Asics Corporation Shock Absorbing Device For Shoe Sole

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2100492A (en) * 1933-10-23 1937-11-30 Converse Rubber Company Pneumatic sheet material and method of making
US2983056A (en) * 1959-05-12 1961-05-09 Steven A Murawski Pneumatic foot wear
FR2088626A5 (fr) * 1970-04-20 1972-01-07 Paritzky Ets
US20040211088A1 (en) * 2003-04-25 2004-10-28 Volkart Lauro Alvicio Sport shoe with impact absorber system
US20080034615A1 (en) * 2004-09-30 2008-02-14 Asics Corporation Shock Absorbing Device For Shoe Sole

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITTV20110043A1 (it) * 2011-03-25 2012-09-26 Thermoshoe Di Baldin E C S N C "metodo per la realizzazione di calzature, particolarmente per uso ospedaliero"
WO2018095502A1 (fr) * 2016-11-22 2018-05-31 Puma SE Chaussure, notamment chaussure de sport, et son procédé de fabrication
WO2019214815A1 (fr) * 2018-05-08 2019-11-14 Puma SE Procédé de fabrication d'une semelle de chaussure, en particulier de chaussure de sport
CN112135727A (zh) * 2018-05-08 2020-12-25 彪马欧洲股份公司 用于生产鞋尤其运动鞋的鞋底的方法
CN112135727B (zh) * 2018-05-08 2023-02-03 彪马欧洲股份公司 用于生产鞋尤其运动鞋的鞋底的方法
US11744322B2 (en) 2018-05-08 2023-09-05 Puma SE Sole of a shoe, particularly an athletic shoe
US11926115B2 (en) 2018-05-08 2024-03-12 Puma SE Method for producing a sole of a shoe, in particular of a sports shoe
IT202100013616A1 (it) * 2021-05-25 2022-11-25 Diadora Spa Suola per calzature e metodo di realizzazione di tale suola
EP4094618A1 (fr) * 2021-05-25 2022-11-30 Diadora S.p.A. Semelle d'usure pour chaussure et procédé de fabrication d'une telle semelle d'usure
US12109775B2 (en) 2021-12-22 2024-10-08 Puma SE Method for producing a sole of a shoe

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