EP0842619A2 - Procédé de fabrication de chaussures de sport à tige souple, comme une chaussure pour planche de neige de similaire, et chaussures fabriquées par ce procédé - Google Patents

Procédé de fabrication de chaussures de sport à tige souple, comme une chaussure pour planche de neige de similaire, et chaussures fabriquées par ce procédé Download PDF

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Publication number
EP0842619A2
EP0842619A2 EP97201774A EP97201774A EP0842619A2 EP 0842619 A2 EP0842619 A2 EP 0842619A2 EP 97201774 A EP97201774 A EP 97201774A EP 97201774 A EP97201774 A EP 97201774A EP 0842619 A2 EP0842619 A2 EP 0842619A2
Authority
EP
European Patent Office
Prior art keywords
footwear
resin
inner boot
soft
fitted
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.)
Withdrawn
Application number
EP97201774A
Other languages
German (de)
English (en)
Other versions
EP0842619A3 (fr
Inventor
Mariano Sartor
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.)
Dolomite SpA
Original Assignee
Dolomite SpA
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 Dolomite SpA filed Critical Dolomite SpA
Publication of EP0842619A2 publication Critical patent/EP0842619A2/fr
Publication of EP0842619A3 publication Critical patent/EP0842619A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/04—Ski or like boots
    • A43B5/0401—Snowboard boots
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B5/00—Footwear for sporting purposes
    • A43B5/04—Ski or like boots
    • A43B5/0405—Linings, paddings or insertions; Inner boots
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/14—Footwear with health or hygienic arrangements with foot-supporting parts
    • A43B7/28—Adapting the inner sole or the side of the upper of the shoe to the sole of the foot

Definitions

  • the present invention relates to a method of manufacturing sports footwear with a soft, yielding upper and to footwear produced by the method, according to the preambles to Claims 1 and 5, respectively.
  • the invention relates to sports footwear and to a method for its manufacture, in which the inner boot is formed (substantially like a cast) directly on the user's foot at the time when the footwear is purchased or when it is first used.
  • the one most suitable for producing inner boots personalized or formed directly on the user's foot is that which provides for the injection of a resin (generally a polyurethane) which can expand inside an injection chamber defined in the inner boot and which can subsequently set.
  • a resin generally a polyurethane
  • This technique is particularly effective in the production of sports footwear with a rigid outer shell which is capable, as such, of withstanding the pressures exerted by the expansion of the resin injected. It cannot be used as effectively, however, for forming inner boots in footwear with soft, yielding uppers since, because these cannot withstand the forces due to the expansion of the injected material, they would deform in a wholly unacceptable manner.
  • the problem upon which the present invention is based, is therefore that of providing a method which enables the aforementioned technique of the injection of expandable resin to be used in the production of an inner boot inside sports footwear with a soft upper.
  • footwear substantially in the form of an ankle boot and having a soft upper 2, for example, footwear of the type generally used for snow-boarding, is indicated 1.
  • the term "footwear with a soft upper” is intended to indicate footwear with an upper or parts thereof having a composition which is particularly deformable and yielding or which, in any case, does not have the characteristics of stiffness which are typical of the compositions of the outer shells of ski boots.
  • the soft, and hence deformable, parts of the footwear 2 are constituted by the side portions 3, 33 thereof, and by the leg portion 4, the toe portion 5 and the heel portion 6 themselves being sufficiently rigid.
  • the footwear also comprises conventional fastening means with laces, generally indicated 7.
  • a double-walled inner boot, indicated 8 is made of a suitable, known, strong and deformable plastics material.
  • An injection chamber is defined between the walls of the inner boot 8 and is substantially impermeable to resin which can be injected into the chamber through a tube 9 which leads to the chamber from outside the footwear when the inner boot 8 is housed therein.
  • a containment structure of the upper 2, separate and structurally independent of the upper 2 and of the inner boot 8, is generally indicated 10.
  • the structure 10 comprises two stiff walls 11, 12, designed and shaped so as substantially to match the respective soft portions 3, 33 of the upper 2.
  • the walls 11, 12 have peripheral, elongate, slot-like holes 11a, 12a forming through-holes for strap-like fastenings, all indicated 13.
  • the inner boot 8 is first fitted on the user's foot and the containment structure 10 is fitted onto it and is tightened by means of the fastenings 13, 13.
  • the next step of the method consists in inserting the inner boot 8, with the respective structure 10, in the upper 2 so that the walls 11, 12 of the containment structure are disposed beside the respective soft (or deformable) portions of the upper 2, particularly the side portions 3, 33, and the leg portion 4 of the upper, and in lacing the footwear tightly onto the foot with the desired tension, with the fastening means 7.
  • an expandable plastics material for example, preferably a two-part polyurethane resin, is injected, in the fluid state, into the injection chamber of the inner boot 8.
  • an expandable plastics material for example, preferably a two-part polyurethane resin
  • the forces generated by the expansion of the material selected are effectively withstood by the rigid containment structure 10.
  • a limited stress consequently reaches the soft portions of the upper 2, which therefore undergoes only partial and acceptable deformation.
  • the footwear 1 Upon completion of the expansion and setting, that is, when the inner boot is formed substantially as a cast on the user's foot, the footwear 1 is first unfastened and the fastenings 13, 13 are then slackened so as to allow the footwear to be removed from the user's foot with the respective inner boot 8 fitted thereon. At this point, the structure 10 is removed and the injected inner boot is fitted back in the footwear thus made available.
  • Figure 3 shows a variant of the method described above in accordance with which the containment structure 10, again comprising a pair of walls 11, 12 and respective strap-like fastenings 13 for connecting them to one another, is fitted and closed externally onto the upper 2 of the footwear 1 into which the user's foot, already provided with the inner boot 8, has previously been fitted, and which has been tightened in the desired manner by the fastening means 7.
  • the stresses which the expanding resin injected into the injection chamber of the inner boot 8 exerts on the soft portions of the upper 2 during the injection step are also fully absorbed by the containment structure 10 without any consequent deformation of the soft portions.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Epidemiology (AREA)
  • Public Health (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
EP97201774A 1996-10-16 1997-06-12 Procédé de fabrication de chaussures de sport à tige souple, comme une chaussure pour planche de neige de similaire, et chaussures fabriquées par ce procédé Withdrawn EP0842619A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT96PD000252A IT1287965B1 (it) 1996-10-16 1996-10-16 Metodo di fabbricazione di una calzatura sportiva a tomaia cedevole morbida quale uno scarpone da snow board o simili e calzatura secondo
ITPD960252 1996-10-16

Publications (2)

Publication Number Publication Date
EP0842619A2 true EP0842619A2 (fr) 1998-05-20
EP0842619A3 EP0842619A3 (fr) 1999-02-03

Family

ID=11391548

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97201774A Withdrawn EP0842619A3 (fr) 1996-10-16 1997-06-12 Procédé de fabrication de chaussures de sport à tige souple, comme une chaussure pour planche de neige de similaire, et chaussures fabriquées par ce procédé

Country Status (2)

Country Link
EP (1) EP0842619A3 (fr)
IT (1) IT1287965B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8302329B2 (en) 2009-11-18 2012-11-06 Nike, Inc. Footwear with counter-supplementing strap
EP2777413A1 (fr) * 2013-03-12 2014-09-17 Sport Zeisler OHG Procédé de fabrication d'une chaussure, chaussure et dispositif d'exécution du procédé
US10278454B2 (en) 2010-09-30 2019-05-07 Nike, Inc. Footwear with internal harness

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1484462A (fr) * 1965-06-25 1967-09-15
US3377721A (en) * 1966-05-04 1968-04-16 Raymond R. Johnson Reinforced ski boot and method of making the same
US3834044A (en) * 1970-03-16 1974-09-10 Anderson & Thompson Ski Co Method of foaming ski boots
IT1259139B (it) * 1992-07-28 1996-03-11 Dolomite Spa Metodo di regolazione ausiliaria del volume libero tra scafo e scarpetta in una calzatura sportiva e calzatura, quale scarpone da sci,scarpa per pattinaggio e simili, con regolazione ausiliaria del volume libero tra lo scafo e scarpetta secondo tale metodo

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8302329B2 (en) 2009-11-18 2012-11-06 Nike, Inc. Footwear with counter-supplementing strap
US8656612B2 (en) 2009-11-18 2014-02-25 Nike, Inc. Footwear with counter-supplementing strap
US10278454B2 (en) 2010-09-30 2019-05-07 Nike, Inc. Footwear with internal harness
EP2777413A1 (fr) * 2013-03-12 2014-09-17 Sport Zeisler OHG Procédé de fabrication d'une chaussure, chaussure et dispositif d'exécution du procédé

Also Published As

Publication number Publication date
IT1287965B1 (it) 1998-09-10
EP0842619A3 (fr) 1999-02-03
ITPD960252A1 (it) 1998-04-16

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