WO1997032497A1 - High transpiring footwear - Google Patents

High transpiring footwear Download PDF

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Publication number
WO1997032497A1
WO1997032497A1 PCT/IT1997/000045 IT9700045W WO9732497A1 WO 1997032497 A1 WO1997032497 A1 WO 1997032497A1 IT 9700045 W IT9700045 W IT 9700045W WO 9732497 A1 WO9732497 A1 WO 9732497A1
Authority
WO
WIPO (PCT)
Prior art keywords
sole
footwear
foot
aqueous vapour
middle sole
Prior art date
Application number
PCT/IT1997/000045
Other languages
French (fr)
Inventor
Gabriele Grandini
Original Assignee
Siport 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 Siport S.P.A. filed Critical Siport S.P.A.
Priority to KR1019970707540A priority Critical patent/KR19990008016A/en
Priority to JP9531637A priority patent/JPH11504560A/en
Publication of WO1997032497A1 publication Critical patent/WO1997032497A1/en

Links

Classifications

    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/06—Footwear with health or hygienic arrangements ventilated
    • A43B7/08—Footwear with health or hygienic arrangements ventilated with air-holes, with or without closures
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/10—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined specially adapted for sweaty feet; waterproof
    • A43B17/102—Moisture absorbing socks; Moisture dissipating socks
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B1/00—Footwear characterised by the material
    • A43B1/14—Footwear characterised by the material made of plastics
    • 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
    • A43B13/125—Soles with several layers of different materials characterised by the midsole or middle layer
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B13/00—Soles; Sole-and-heel integral units
    • A43B13/28—Soles; Sole-and-heel integral units characterised by their attachment, also attachment of combined soles and heels
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B17/00—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined
    • A43B17/08—Insoles for insertion, e.g. footbeds or inlays, for attachment to the shoe after the upper has been joined ventilated
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/0245—Uppers; Boot legs characterised by the constructive form
    • A43B23/025—Uppers; Boot legs characterised by the constructive form assembled by stitching
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/02—Uppers; Boot legs
    • A43B23/0245—Uppers; Boot legs characterised by the constructive form
    • A43B23/0265—Uppers; Boot legs characterised by the constructive form having different properties in different directions
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B23/00—Uppers; Boot legs; Stiffeners; Other single parts of footwear
    • A43B23/07—Linings therefor
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/12—Special watertight footwear

Definitions

  • This invention generally relates to the footwear industry and, more particularly, an improved footwear adapted to facilitate the outward dispersion of the aqueous vapour which is produced by transpiration of the foot within the footwear while walking, while assuring at the same time good waterproofing and thermal insulation from the outside envi onment.
  • the outward dispersion of the aqueous vapour produced within the footwear mainly occurs through the upper and the tongue, while dispersion through the sole is extremely low.
  • the use of glue rather than the more expensive seam for joining the outer sole to the inner sole and the use of soles made of rubber and/or thermoplastic material for thermal insulation and waterproofing purposes make the drainage of the aqueous vapour produced by transpiration a difficult problem to solve.
  • footwear with a rubber sole or the like having a perforated structure are unsatisfactory from this point of view because the holes provided for transpiration become easily plugged up when the soles come in contact with a dusty or dirty ground and, furthermore, they have the drawback of causing the cold air unavoidably contacting the foot bottom surface to be drawn from the outside, causing a bothersome feeling.
  • the object of the invention is to overcome said drawbacks by providing a footwear in which aqueous vapour caused by transpiration from the upper portion and side portion of the foot and, moreover, from the foot bottom surface can be quickly and efficiently dispelled, while preventing at the same time moisture and cold air coming from the outside from penetrating within the footwear.
  • the footwear according to the invention is characterized in that it comprises:
  • a middle sole made of a material that can absorb the aqueous vapour transpiring from the foot bottom surface and dispel it outwardly from the sides thereof
  • a thin strap made of the same material as the upper that encloses the peripheral portion of the middle sole and is provided with inwardly folded edges directed towards the inner of said middle sole
  • the upper of the footwear is internally lined with a two-layer lining, the first layer which contacts the foot being made of a material that easily absorbs the aqueous vapour transpiring from the upper portion and side portion of the foot, and the second layer interposed between the first layer and the upper being made of a material that easily absorbs the aqueous vapour from the first layer and dispels it outwardly through the upper.
  • Fig. 1 is a longitudinal sectional view of a footwear according to the invention
  • Fig. 2 is a cross sectional view along line 11—11 of Fig. 1 of a footwear according to a first embodiment of the invention
  • Fig. 3 is a cross sectional view similar to Fig. 2 of a footwear according to a second embodiment of the invention.
  • the footwear 10 according to the invention described with reference to Fig. 2 has a tubular upper 11.
  • the lower portion of the tubular upper 11, which in this case acts as an inner sole 12, is perforated in order to let the aqueous vapour transpiring from le foot sole to pass through and into the middle sole 15 which is interposed between said tubular upper 11 and the outer sole 14 which is the proper sole of the footwear.
  • the middle sole 15 is made of a material with open and interconnected cells that can easily absorb the aqueous vapour coming from the inside of the footwear 10 and dispel it outwardly from the side, urged in so doing by the pressure exerted by the foot while walking, said middle sole 15 providing at the same time a soft and steady support for the foot.
  • the material of which the middle sole 15 is made is a porous foam of polyurethane having microcells, e.g. the known material which is p commercially available under the trademark PORON and which has up to 35 million of open and interconnected microcells per square meter.
  • the thin strap 16 is aimed at preventing the material forming the middle sole 15 from absorbing moisture coming from the outside, while not jeopardizing the ability to dispel the aqueous vapour outwardly since glue is not used.
  • Th assembly of the footwear 10 is completed by attaching the tubular upper 11 to the middle sole 15 with a joining seam 18 that also passes through the inwardly folded edges of the thin strap 16 and by glueing to such assembly an outer sole 14 which can be made of leather, rubber, thermoplastic material or the like.
  • the footwear 10 of the invention is of the type having a non tubular upper and like the footwear of Fig. 1, it comprises a middle sole 15 made of a foam of polyurethane having microcells the outer peripheral portion of which is enclosed by a thin strap 16 made of the same material as the upper 11 and with its inwardly folded edges directed towards the inner portion of the middle sole 15, said edges being sewed to said middle sole 15 by means of a finishing seam 17.
  • the middle sole 15 is joined to the welts of the upper 11 by means of a joining seam 18 which passes through the thin strap 16 and the inner sole 12, said inner sole 12 being provided with holes which let the aqueous vapour transpiring from the foot bottom surface to pass through and into the middle sole 15.
  • the upper 11 of the footwear is made of leather, fabric or another material that permits transpiration and is treated by conventional means in order to assure weatherproofness without jeopardizing its transpiration capability.
  • the upper is internal " "y lined with a two layer lining, known per s , the first layer which contacts the foot being made of a material that easily absorbs the aqueous vapour transpiring from the upper portion and side portion of the foot, and the second layer which is interposed between the first layer and the upper being made of a material, e.g. a polyester, that easily absorbs the aqueous vapour from the first layer and dispels it outwardly through the upper.
  • the transpiration from the upper portion of the foot is made easier also by providing the tongue with small holes.

Landscapes

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

Abstract

The high transpiring footwear of the type having an upper (11), an inner sole (12) and an outer sole (14), comprises a middle sole (15) made of a material that can absorb the aqueous vapour transpiring from the foot bottom surface and dispel it outwardly from the sides thereof and a thin strap (16) made of the same material as the upper (11) that encloses the peripheral portion of the middle sole (15) and is provided with inwardly folded edges directed towards the inner of said middle sole (15). The thin strap (16) is sewed to the middle sole (15) in order to prevent the material forming it from absorbing moisture coming from the outside, without jeopardizing its ability to dispel the aqueous vapour outwardly, while providing at the same time a soft and steady support for the foot.

Description

HIGH TRANSPIRING FOOTWEAR
DESCRIPTION
This invention generally relates to the footwear industry and, more particularly, an improved footwear adapted to facilitate the outward dispersion of the aqueous vapour which is produced by transpiration of the foot within the footwear while walking, while assuring at the same time good waterproofing and thermal insulation from the outside envi onment.
In the footwear manufactured according to conventional manufacturing methods and by the use of customary materials, the outward dispersion of the aqueous vapour produced within the footwear mainly occurs through the upper and the tongue, while dispersion through the sole is extremely low. As a matter of fact, the use of glue rather than the more expensive seam for joining the outer sole to the inner sole and the use of soles made of rubber and/or thermoplastic material for thermal insulation and waterproofing purposes make the drainage of the aqueous vapour produced by transpiration a
Figure imgf000003_0001
difficult problem to solve.
Consequently, in the conventional footwear, only the aqueous vapour transpiring from the upper portion and side portion of the foot can be dispelled, while the aqueous vapour transpiring in greater amount from the foot sole cannot be dispelled.
To overcome this drawback, soles of rubber and/or thermoplastic material with a perforated structure which permits the aqueous vapour produced by the foot sole to be dispelled have already been made.
However, also footwear with a rubber sole or the like having a perforated structure are unsatisfactory from this point of view because the holes provided for transpiration become easily plugged up when the soles come in contact with a dusty or dirty ground and, furthermore, they have the drawback of causing the cold air unavoidably contacting the foot bottom surface to be drawn from the outside, causing a bothersome feeling.
The object of the invention is to overcome said drawbacks by providing a footwear in which aqueous vapour caused by transpiration from the upper portion and side portion of the foot and, moreover, from the foot bottom surface can be quickly and efficiently dispelled, while preventing at the same time moisture and cold air coming from the outside from penetrating within the footwear.
More particularly, the footwear according to the invention is characterized in that it comprises:
- a middle sole made of a material that can absorb the aqueous vapour transpiring from the foot bottom surface and dispel it outwardly from the sides thereof, - a thin strap made of the same material as the upper that encloses the peripheral portion of the middle sole and is provided with inwardly folded edges directed towards the inner of said middle sole,
- said thin strap being sewed to the middle sole in order to prevent the material forming it from absorbing moisture coming from the outside, without jeopardizing its ability to dispel the aqueous vapour outwardly, while providing at the same time a soft and steady support for the foot. Advantageously, the upper of the footwear is internally lined with a two-layer lining, the first layer which contacts the foot being made of a material that easily absorbs the aqueous vapour transpiring from the upper portion and side portion of the foot, and the second layer interposed between the first layer and the upper being made of a material that easily absorbs the aqueous vapour from the first layer and dispels it outwardly through the upper.
The features and advantages offered by the footwear of the invention will be better understood from the following detailed description of its preferred embodiments, in connection with the accompanying drawings, wherein:
Fig. 1 is a longitudinal sectional view of a footwear according to the invention,
Fig. 2 is a cross sectional view along line 11—11 of Fig. 1 of a footwear according to a first embodiment of the invention, and
Fig. 3 is a cross sectional view similar to Fig. 2 of a footwear according to a second embodiment of the invention.
The footwear 10 according to the invention described with reference to Fig. 2 has a tubular upper 11. The lower portion of the tubular upper 11, which in this case acts as an inner sole 12, is perforated in order to let the aqueous vapour transpiring from le foot sole to pass through and into the middle sole 15 which is interposed between said tubular upper 11 and the outer sole 14 which is the proper sole of the footwear. The middle sole 15 is made of a material with open and interconnected cells that can easily absorb the aqueous vapour coming from the inside of the footwear 10 and dispel it outwardly from the side, urged in so doing by the pressure exerted by the foot while walking, said middle sole 15 providing at the same time a soft and steady support for the foot.
Preferably, but not necessarily, the material of which the middle sole 15 is made is a porous foam of polyurethane having microcells, e.g. the known material which is p commercially available under the trademark PORON and which has up to 35 million of open and interconnected microcells per square meter.
A thin strap 16 made of the same material as the tubular upper 11, with its inwardly folded edges directed towards the inner portion of the middle sole 15 encloses the outer peripheral portion thereof. A finishing seam 17 connects the inwardly folded edges of the thin strap 16 to the middle sole 15.
Besides its clear aesthetical purpose, the thin strap 16 is aimed at preventing the material forming the middle sole 15 from absorbing moisture coming from the outside, while not jeopardizing the ability to dispel the aqueous vapour outwardly since glue is not used.
Th assembly of the footwear 10 is completed by attaching the tubular upper 11 to the middle sole 15 with a joining seam 18 that also passes through the inwardly folded edges of the thin strap 16 and by glueing to such assembly an outer sole 14 which can be made of leather, rubber, thermoplastic material or the like.
In Fig. 3, the footwear 10 of the invention is of the type having a non tubular upper and like the footwear of Fig. 1, it comprises a middle sole 15 made of a foam of polyurethane having microcells the outer peripheral portion of which is enclosed by a thin strap 16 made of the same material as the upper 11 and with its inwardly folded edges directed towards the inner portion of the middle sole 15, said edges being sewed to said middle sole 15 by means of a finishing seam 17.
The middle sole 15 is joined to the welts of the upper 11 by means of a joining seam 18 which passes through the thin strap 16 and the inner sole 12, said inner sole 12 being provided with holes which let the aqueous vapour transpiring from the foot bottom surface to pass through and into the middle sole 15.
The subsequent glueing of an outer sole 14 of leather, rubber, thermoplastic material or the like to such assembly completes the assembly operation of the footwear 10.
In the preferred embodiments, the upper 11 of the footwear is made of leather, fabric or another material that permits transpiration and is treated by conventional means in order to assure weatherproofness without jeopardizing its transpiration capability. Preferably, the upper is internal ""y lined with a two layer lining, known per s , the first layer which contacts the foot being made of a material that easily absorbs the aqueous vapour transpiring from the upper portion and side portion of the foot, and the second layer which is interposed between the first layer and the upper being made of a material, e.g. a polyester, that easily absorbs the aqueous vapour from the first layer and dispels it outwardly through the upper. The transpiration from the upper portion of the foot is made easier also by providing the tongue with small holes. Although the footwear according to the invention has been disclosed and illustrated in connection with two preferred embodiments only, it is apparent that all changes and modifications can be made thereto by those skilled in the art without departing from the scope of this invention.

Claims

1) Footwear having an upper (11), an inner sole (12) and an outer sole (14), characterized in that it comprises: - a middle sole (15) made of a material that can absorb the aqueous vapour transpiring from the foot bottom surface and dispel it outwardly from the sides thereof,
- a thin strap (16) made of the same material as the upper (11) that encloses the peripheral portion of the middle sole (15) and is provided with inwardly folded edges directed towards the inner of said middle sole (15),
- said thin strap (16) being sewed to the middle sole (15) in order to prevent the material forming it from absorbing moisture coming from the outside, without jeopardizing its ability to dispel the aqueous vapour outwardly, while providing at the same time a soft and steady support for the foot.
2) Footwear according to claim 1, characterized in that the material forming the middle sole (15) is a foam of polurethane having open and interconnected microcells.
3) Footwear according to claim 1, characterized in that, in the case of a tubular upper (11), a joining seam (18) passing through the two edges of the thin i ripheral strap (16), the middle sole (15) and the upper (11) is provided, the bottom of the tubular upper (11) acting as an inner sole (12) and being provided with holes for permitting the aqueous vapour to pass therethrough.
4) Footwear according to claim 1, characterized in that, in case of a non tubular upper (11), a joining seam (18) passing through the two edges of the thin peripheral strap (16), the welts of the upper (11) and the inner sole (12) is provided, said inner sole (12) being provided with holes for permitting the aqueous vapour to pass therethrough.
5) Footwear according to claim 1, characterized in that the upper (11) of the footwear is internally lined with a two-layer lining, the first layer which contacts the foot being made of a material that easily absorbs the aqueous vapour transpiring from the upper portion and side portion of the foot, and the second layer interposed between the first layer and the upper (11) being made of a material that easily absorbs the aqueous vapour from the first layer and dispels it outwardly through the upper (11).
PCT/IT1997/000045 1996-03-05 1997-03-04 High transpiring footwear WO1997032497A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1019970707540A KR19990008016A (en) 1996-03-05 1997-03-04 A shoe with a high degree of evaporation action
JP9531637A JPH11504560A (en) 1996-03-05 1997-03-04 High transpiration footwear

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI96U000160 1996-03-05
IT1996MI000160U IT240487Y1 (en) 1996-03-05 1996-03-05 HIGH BREATHABILITY FOOTWEAR

Publications (1)

Publication Number Publication Date
WO1997032497A1 true WO1997032497A1 (en) 1997-09-12

Family

ID=11373074

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IT1997/000045 WO1997032497A1 (en) 1996-03-05 1997-03-04 High transpiring footwear

Country Status (4)

Country Link
JP (1) JPH11504560A (en)
KR (1) KR19990008016A (en)
IT (1) IT240487Y1 (en)
WO (1) WO1997032497A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1118281A2 (en) * 2000-01-20 2001-07-25 Asesorias e Inversiones Santa Francisca Limitada Moisture and temperature regulating insole
EP1201143A1 (en) * 2000-10-31 2002-05-02 Nottington Holding B.V. Breathable and waterproof sole for shoes
EP1312275A3 (en) * 1997-05-09 2003-10-15 Geox S.p.A. Improved vapor - permeable shoe
DE102012219768A1 (en) * 2012-10-29 2014-04-30 Uvex Arbeitsschutz Gmbh Breathable protective work shoe

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE495151C (en) * 1929-02-22 1930-04-02 Hans Schinnagel Process for the production of waterproof footwear and waterproof boots produced by this process
DE3820094A1 (en) * 1988-06-13 1989-12-14 Gore W L & Co Gmbh Watertight inverted-seam sewn footwear
EP0464800A2 (en) * 1990-07-06 1992-01-08 LOWA-SCHUHFABRIK LORENZ WAGNER GmbH & Co. KG Watertight shoe
EP0544270A1 (en) * 1991-11-26 1993-06-02 W.L. Gore & Associates GmbH Waterproof breathable shoe
GB2264626A (en) * 1992-02-21 1993-09-08 Tecnic Shoe Co Ltd The Waterproof footwear

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE495151C (en) * 1929-02-22 1930-04-02 Hans Schinnagel Process for the production of waterproof footwear and waterproof boots produced by this process
DE3820094A1 (en) * 1988-06-13 1989-12-14 Gore W L & Co Gmbh Watertight inverted-seam sewn footwear
EP0464800A2 (en) * 1990-07-06 1992-01-08 LOWA-SCHUHFABRIK LORENZ WAGNER GmbH & Co. KG Watertight shoe
EP0544270A1 (en) * 1991-11-26 1993-06-02 W.L. Gore & Associates GmbH Waterproof breathable shoe
GB2264626A (en) * 1992-02-21 1993-09-08 Tecnic Shoe Co Ltd The Waterproof footwear

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1312275A3 (en) * 1997-05-09 2003-10-15 Geox S.p.A. Improved vapor - permeable shoe
EP1118281A2 (en) * 2000-01-20 2001-07-25 Asesorias e Inversiones Santa Francisca Limitada Moisture and temperature regulating insole
EP1118281A3 (en) * 2000-01-20 2003-03-19 Asesorias e Inversiones Santa Francisca Limitada Moisture and temperature regulating insole
EP1201143A1 (en) * 2000-10-31 2002-05-02 Nottington Holding B.V. Breathable and waterproof sole for shoes
US6655048B2 (en) 2000-10-31 2003-12-02 Geox S.P.A. Breathable and waterproof sole for shoes
DE102012219768A1 (en) * 2012-10-29 2014-04-30 Uvex Arbeitsschutz Gmbh Breathable protective work shoe

Also Published As

Publication number Publication date
IT240487Y1 (en) 2001-04-02
KR19990008016A (en) 1999-01-25
ITMI960160U1 (en) 1997-09-05
JPH11504560A (en) 1999-04-27

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