EP0915669B1 - Wasserdichtes schuhwerk - Google Patents

Wasserdichtes schuhwerk Download PDF

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Publication number
EP0915669B1
EP0915669B1 EP97931778A EP97931778A EP0915669B1 EP 0915669 B1 EP0915669 B1 EP 0915669B1 EP 97931778 A EP97931778 A EP 97931778A EP 97931778 A EP97931778 A EP 97931778A EP 0915669 B1 EP0915669 B1 EP 0915669B1
Authority
EP
European Patent Office
Prior art keywords
shaft
functional layer
footwear
closing piece
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.)
Expired - Lifetime
Application number
EP97931778A
Other languages
English (en)
French (fr)
Other versions
EP0915669A1 (de
Inventor
Jose Quinta Do Ariero 30 Silva
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.)
WL Gore and Associates GmbH
WL Gore and Associates Inc
Original Assignee
WL Gore and Associates GmbH
WL Gore and Associates Inc
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 WL Gore and Associates GmbH, WL Gore and Associates Inc filed Critical WL Gore and Associates GmbH
Publication of EP0915669A1 publication Critical patent/EP0915669A1/de
Application granted granted Critical
Publication of EP0915669B1 publication Critical patent/EP0915669B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • A43B7/125—Special watertight footwear provided with a vapour permeable member, e.g. a membrane
    • A—HUMAN NECESSITIES
    • A43—FOOTWEAR
    • A43B—CHARACTERISTIC FEATURES OF FOOTWEAR; PARTS OF FOOTWEAR
    • A43B7/00—Footwear with health or hygienic arrangements
    • A43B7/36—Footwear with health or hygienic arrangements with earthing or grounding means

Definitions

  • the invention relates to waterproof footwear with an upper material shaft consisting of an upper material, with a functional layer shaft being arranged inside of the upper material shaft and incorporating a waterproof, functional layer, with an insole and an outsole, wherein the sole-facing end areas of both the upper material shaft and of the functional layer shaft are turned around the circumferential edge of the insole, in case of the sole-facing end area of the upper material shaft in the form of a lasting allowance.
  • the functional layer may in addition to being waterproof also be water vapor permeable.
  • Footwear of this type is conventionally either lined with a sock-like insert consisting of a functional layer material (also known by the technical expression “bootie”) to protect the foot fully from penetrating water, or a construction of the type described in the beginning is used wherein the sole-facing open end of both the upper material shaft and the functional layer shaft are lasted and glued around a last holding the insole in an adhesive lasting process.
  • a functional layer material also known by the technical expression "bootie”
  • the solution with the sock-like functional layer insert makes the footwear reliably waterproof, but may be disadvantageous if for some reason a material different from the functional layer or a material with different properties than the functional layer were preferable in the sole area.
  • German utility model DE-U-9113139 quotes a bicomponent bootie whose shaft part consists of a functional layer and whose sole area consists of a two-dimensionally stretchable plastic film made from a different material than the functional layer material, but one which is desired to be waterproof.
  • the reason for the stretchability is that the foot stretches in two dimensions when walking whereas conventional functional layer materials stretch in one dimension only entailing the danger of excessive loads in the sole area of the bootie.
  • the functional layer constitutes a barrier to the discharge of electrical charges because conventional functional materials, for example microporous polytetrafluoroethylene (PTFE), have a high electrical insulating capacity.
  • PTFE microporous polytetrafluoroethylene
  • the materials located within the lasting allowance of the functional layer shaft can be selected adequately so that properties can be achieved which would have been impossible if a sock-like functional layer insert had been used.
  • antistatic materials may be used, i.e. materials which do not constitute a barrier to the dissipation or discharge of static electrical charges.
  • a lasting process is rather work-intensive and requires a lasting machine to produce the lasting allowance.
  • a lasting allowance is produced both for the upper material shaft and for the functional layer shaft, two lasting processes and two lasting machines are required, which is rather cost-intensive.
  • the object of the present invention is to provide for waterproof footwear of the type described above which offers considerable freedom in sole material selection and which does not require two lasting processes to produce the footwear.
  • the invention provides for waterproof footwear with an upper material shaft made up of an upper material, with a functional layer shaft arranged inside of the upper material shaft and comprising a waterproof functional layer, with an insole and with an outsole, wherein the sole-facing end area of both the upper material shaft and the functional layer shaft is turned around the circumferential edge of the insole between the insole and the outsole, wherein the sole-facing end area of the upper material shaft is connected in the form of a lasting allowance, the sole-facing opening of the functional layer shaft is closed by means of a closing piece which is sewn to the edge of this opening and which extends underneath the insole, and wherein between the closing piece and the lasting allowance of the upper material shaft a sealant is arranged which seals the closing piece itself as well as the seam between the functional layer shaft and the closing piece.
  • the functional layer in addition to being waterproof, is also water vapor permeable.
  • the upper material is also water vapor permeable, which allows comfortable breathable waterproof footwear to be produced.
  • Waterproof footwear is defined to mean that no liquid water leaks through the footwear, with no pressure being applied.
  • the Two Hour Hydro Test is used to test for waterproofness in footwear. This test was performed at ambient temperature and humidity. The footwear was checked to make sure that it was completely dry. A paper towel was folded in half, lengthwise, so that it was double, i.e., had two layers, and was set on a clean benchtop. The paper towel functions as a blotter. The footwear was then set on this paper towel blotter.
  • Waterproof functional layer as used herein is meant a functional layer having water-penetration-resistance (hydrostatic resistance) of 6.8 kPa (1.0 psi) or more.
  • the Low Pressure Hydrostatic Resistance Test (WEP) is used to indicate the waterproofness of the functional layer. It consists essentially of forcing water against one side of a test piece, and observing the other side of the test piece for indications of water penetration through it.
  • the test specimen was clamped and sealed between rubber gaskets in a fixture that holds the test piece.
  • One surface of the test specimen was in contact with the water and the other side faced upward, open to the atmosphere, for close observation. Air was removed from inside the fixture and pressure was applied to the inside surface of the test piece, over an area of 7.62 cm (3.0 inches) diameter, as water was forced against it.
  • the water pressure on the test piece was increased to about 6.9 kPa (1.0 psi) by a pump connected to a water reservoir, as indicated by an appropriate gauge and regulated by an in-line valve.
  • the surface of the test piece was watched closely for the appearance of any water forced through the material. Water seen on the surface is interpreted as a leak.
  • the sample surface is observed for one minute at test pressure, at which time the number of leaks are counted and recorded.
  • Water-vapor-permeable as used herein is meant having a water-vapor-transmission (WVTR) rate of 100 g/m2/24-hours or more.
  • WVTR water vapor transmission rate
  • the WVTR of the sample was calculated from the weight gain of the cup assembly and was expressed in grams of water per square meter of sample surface area per 24 hours.
  • the sole-side opening of the functional layer shaft is closed by means of a closing piece of any sewable material extending underneath the insole and being sewn to the edge of this opening and that between the closing piece and the lasting allowance of the upper material shaft there is a waterproof sealing material which seals both the seam between the functional layer shaft and the closing piece and the closing piece itself.
  • any material may be selected as "closing piece", as long as it can be sewn to the functional layer shaft.
  • an electrically conductive material can be used for an antistatic footwear so that static charges can be dissipated and removed from the footwear.
  • electrically conductive materials are also used for the insole, the sealing material and the outsole.
  • German utility model DE-U-295 05 886 and European patent application EP-A-96 104 891 containing the same disclosure, both of which were published after the priority date of the present patent application, describe footwear which dissipates static electrical charges and has an outsole consisting of an electrically conductive material, a bootie consisting of a functional layer and an insole arranged in between.
  • the insole consists of an electrically conductive material, either fully or only in the foot 's ball area.
  • the bootie too, consists of an electrically conductive material, either fully or only in the sole area or only in the foot's ball area.
  • a functional layer material which has been rendered electrically conductive by embedding electrically conductive particles or the functional layer material is replaced by a different electrically conductive material in the foot's ball or sole area, e.g. by sewing such a material into a bootie hole in the foot's ball or sole area. Since this other material must be waterproof, there is only a limited number of materials to choose from.
  • An inlay sole is arranged inside of the bootie.
  • the functional layer shaft and the closing piece are sewn together by means of a Strobel seam.
  • the sealant may be an adhesive-like material or a film or plate like material, e.g. a material whose adhesive force can be activated by, but not limited to heat, UV or infrared radiation or chemical curing systems. It can be made of any material, which allows the sole region of the footwear to be waterproofed, in particular polymers, preferably polyurethane or polytetraflouroethylene.
  • An electrically conductive sewing material may be used to produce the seam between the closing piece and the functional layer shaft, either in addition to a closing piece consisting of an electrically conductive material or instead of using an electrically conductive material for the closing piece.
  • An adhesive bond may be provided between the end area of the functional layer shaft and/or the closing piece and the insole on the one hand and the lasting allowance of the upper material shaft on the other hand.
  • An outsole may be mounted to the lasting allowance and the sealing material either by injection molding or glueing.
  • the outsole may be made from leather, rubber, thermoplastic elastomers or polyurethanes.Polyurethane is preferable if injection molding is used.
  • the functional layer material may be made of any waterproof material or film, but is preferably microporous expanded PTFE, with a monolithic coating.
  • Materials suitable for the functional layer comprise microporous expanded polytetrafluoroethylene (PTFE) as described in US patent specifications 3,953,566 andn 4,187,390; expanded PTFE provided with hydrophilic impregnating agents and/or layers as described in US patent specification 4,194,041; breathable polyurethane layers; or elastomers, such as copolyetherester and laminates thereof as described in US patent specifications 4,725,481 and 4,493,870.
  • PTFE microporous expanded polytetrafluoroethylene
  • Figure 1 is a schematic view of footwear in accordance with the invention and with an injection molded outsole.
  • Figure 2 is a schemativ view of footwear in accordance with the invention and with an adhesively attached outsole.
  • the embodiment shown in Figure 1 comprises an upper material shaft 11 consisting of an upper material, such as leather.
  • a functional layer shaft 13 which consists of a waterproof, water vapor permeable functional layer, preferably of expanded microporous PTFE.
  • the functional layer may be part of a laminate which comprises at least one textile layer in addition to the functional layer, e.g a textile lining layer located on the inside of the laminate.
  • a backing material is provided on the outside of the functional layer, i.e. a thin textile layer to protect the functional layer towards the upper material layer 11.
  • the footwear comprises an insole 15 which may consist of a cardboard or leather-like material or of plastic, and an outsole 29, which may consist of injection molded polyurethane.
  • the sole-side end 17 of the functional layer shaft is turned around the insole circumference 19 towards the outsole-facing circumferential edge of the insole.
  • An sole-facing opening of the functional layer shaft 13, which remains after this step, is closed by means of a closing piece 21 which is attached to the sole-side edge of the functional layer shaft 13 by means of a Strobel-type seam 23.
  • the sole-facing opening of the functional layer shaft 13 may be closed before the functional layer shaft is pulled over the last (not shown) with the attached insole 15.
  • a sealing material 25 which extends so far that it covers and seals at least the entire closing piece 21 and the Strobel seam 23, making the sole area of the footwear waterproof.
  • the sole-side end 27 of the upper material shaft 11 is lasted around the functional layer shaft to the underside of the sealant material 25 by means of an adhesive lasting process.
  • connection between the insole 15 and the turned around end 17 of the functional layer insert 13 and/or the closing piece 21 may be effected, e.g., by glueing.
  • the closing piece 21 may consist of any desirable material, the only condition being that it must be sewable.
  • any desirable material for example there is a material commercially available from USM Corp. under the trade name of TEXON which is suitable for this purpose, if static charges are to be dissipated via the sole construction.
  • electrically conductive sewing materials are carbon, nickel plated or silver plated threads, such as are sold under the trade name X-STATIC by Saquoit Industries.
  • An example of a suitable sealant material is, e.g., seam sealing tape material as used according to the state of the art for sealing seams in functional layers.
  • the footwear construction shown in Figure 2 is the same as in Figure 1, with the exception, that the outsole is adhesively attached instead of injection molded and made of e.g., prefabricated plastic or leather.

Landscapes

  • Health & Medical Sciences (AREA)
  • Epidemiology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)

Claims (12)

  1. Wasserdichtes Schuhwerk
    mit einem Obermaterialschaft (11),
    mit einem Funktionsschichtschaft (13), der auf der Innenseite des Obermaterialschafts (11) angeordnet ist und eine wasserdichte Funktionsschicht enthält;
    mit einer Brandsohle (15);
    und mit einer Laufsohle (29),
    wobei der sohlenseitige Endbereich (27, 17) des Funktionsschichtschafts (13) derart umgeschlagen ist, dass er parallel zu der Brandsohle (15) ist;
    wobei die sohlenseitige Öffnung des Funktionsschichtschafts (13) mittels eines Schließstücks (21) geschlossen ist, das mit dem Rand dieser Öffnung (23) vernäht ist und das sich parallel zu der Brandsohle (15) erstreckt,
    dadurch gekennzeichnet, dass der sohlenseitige Endbereich sowohl des Obermaterialschafts (11) als auch des Funktionsschichtschafts (13) um den Umfangsrand der Brandsohle (15) herum zwischen Brandsohle (15) und Laufsohle (29) geschlagen ist;
    dass der sohlenseitige Endbereich (27) des Obermaterialschafts (11) in Form eines Zwickeinschlages (27) angebracht ist;
    dass sich das Schließstück (21) unterhalb der Brandsohle (15) erstreckt, und dass zwischen dem Schließstück (21) und dem Zwickeinschlag (27) des Obermaterialschafts (11) ein wasserdichtes Dichtungsmaterial angeordnet ist (25), das sowohl das eigentliche Schließstück (21) als auch die Naht (23) zwischen dem Funktionsschichtschaft (13) und dem Schließstück (21) abdichtet.
  2. Schuhwerk nach Anspruch 1,
    wobei die Funktionsschicht wasserdampfdurchlässig ist.
  3. Schuhwerk nach Anspruch 1 oder 2,
    wobei der Obermaterialschaft (11) wasserdampfdurchlässig ist.
  4. Schuhwerk nach einem der Ansprüche 1 bis 3,
    wobei der Funktionsschichtschaft (13) und das Schließstück (21) mittels einer Strobelnaht (23) miteinander vernäht sind.
  5. Schuhwerk nach einem der Ansprüche 1 bis 4,
    wobei ein kleberartiges Dichtungsmaterial (25) vorgesehen ist.
  6. Schuhwerk nach einem der Ansprüche 1 bis 4,
    wobei ein folien- oder plattenartiges Dichtungsmaterial vorgesehen ist.
  7. Schuhwerk nach einem der Ansprüche 1 bis 6,
    wobei das Schließstück (21) aus einem elektrisch leitfähigen Material besteht.
  8. Schuhwerk nach Anspruch 7,
    wobei die den Funktionsschichtschaft (13) und das Schließstück (21) verbindende Naht (23) mit elektrisch leitfähigem Nähmaterial genäht ist.
  9. Schuhwerk nach einem der Ansprüche 1 bis 8,
    wobei eine Laufsohle (29) auf den Zwickeinschlag (27) des Obermaterialschafts (11) und das Dichtungsmaterial (25) aufgebracht ist.
  10. Schuhwerk nach Anspruch 9,
    wobei die Laufsohle (29) durch Aufspritzen an dem Schuhwerk angebracht ist.
  11. Schuhwerk nach Anspruch 9,
    wobei die Laufsohle (29) aufgeklebt ist.
  12. Schuhwerk nach einem der Ansprüche 1 bis 11,
    wobei die Funktionsschicht aus gerecktem, mikroporösen PTFE besteht.
EP97931778A 1996-07-04 1997-07-04 Wasserdichtes schuhwerk Expired - Lifetime EP0915669B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19627030A DE19627030C2 (de) 1996-07-04 1996-07-04 Wasserdichter, wasserdampfdurchlässiger Schuh
DE19627030 1996-07-04
PCT/EP1997/003550 WO1998001049A1 (en) 1996-07-04 1997-07-04 Waterproof footwear

Publications (2)

Publication Number Publication Date
EP0915669A1 EP0915669A1 (de) 1999-05-19
EP0915669B1 true EP0915669B1 (de) 2003-03-05

Family

ID=7798965

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97931778A Expired - Lifetime EP0915669B1 (de) 1996-07-04 1997-07-04 Wasserdichtes schuhwerk

Country Status (5)

Country Link
EP (1) EP0915669B1 (de)
AT (1) ATE233497T1 (de)
AU (1) AU3541497A (de)
DE (2) DE19627030C2 (de)
WO (1) WO1998001049A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1185183B2 (de) † 2000-04-13 2016-09-28 Geox S.p.A. Herstellungsverfahren eines atmenden schuhes

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2781652B1 (fr) 1998-07-30 2001-02-16 Decathlon Sa Chausson impermeable destine a former la doublure interieure d'un article chaussant, procede de fabrication d'un tel chausson et article chaussant equipe d'un tel chausson
WO2000024282A1 (de) * 1998-10-28 2000-05-04 W.L. Gore & Associates Gmbh Schuhwerk mit abgedichtetem sohlenaufbau und verfahren zu dessen herstellung
EP1124457B1 (de) 1998-10-28 2004-05-12 W.L. GORE & ASSOCIATES GmbH Abgedichteter schuh und verfahren zu dessen herstellung
AU1156500A (en) * 1998-10-28 2000-05-15 W.L. Gore & Associates Gmbh Footwear having a lasting fold sealing and a method for the production thereof
US20020053148A1 (en) * 1998-11-17 2002-05-09 Franz Haimerl Footwear with last area sealing and method for its production
WO2000044252A1 (de) * 1999-01-29 2000-08-03 W.L. Gore & Associates Gmbh Schuhwerk mit abgedichteter funktionsschicht und verfahren zu dessen herstellung
AU6642100A (en) * 1999-08-16 2001-03-13 Gore Enterprise Holdings, Inc. Waterproof breathable footwear with cemented outsoles
DE60004238T2 (de) * 2000-10-06 2004-05-13 W.L. Gore & Associati S.R.L. Schuhwerk mit Abdichtungselement
US6935053B2 (en) * 2003-01-16 2005-08-30 Gore Enterprise Holdings, Inc. Waterproof footwear and methods for making the same
US7055267B2 (en) 2003-04-30 2006-06-06 Bha Technologies, Inc. Waterproof footwear construction
US8643127B2 (en) 2008-08-21 2014-02-04 S3C, Inc. Sensor device packaging
CH715186B1 (de) * 2018-07-19 2022-01-31 On Clouds Gmbh Verfahren zum Herstellen eines Sportschuhs mit einer wasserdichten Sohlenkonstruktion.

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WO1992020249A1 (en) * 1991-05-17 1992-11-26 Phurness Pty. Ltd. An antistatic shoe sole
DE4419802A1 (de) * 1994-06-06 1995-12-07 Akzo Nobel Nv Wasserdichtes Schuhwerk und Verfahren zur Herstellung desselben
DE9415694U1 (de) * 1994-09-28 1994-12-01 Otter Schutz Gesellschaft für Entwicklung und Vertrieb persönlicher Schutzausrüstungen mbH, 45479 Mülheim Sohlenleitfähiger Schuh
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1185183B2 (de) † 2000-04-13 2016-09-28 Geox S.p.A. Herstellungsverfahren eines atmenden schuhes

Also Published As

Publication number Publication date
DE69719514T2 (de) 2003-11-20
DE69719514D1 (de) 2003-04-10
DE19627030A1 (de) 1998-01-15
ATE233497T1 (de) 2003-03-15
EP0915669A1 (de) 1999-05-19
WO1998001049A1 (en) 1998-01-15
AU3541497A (en) 1998-02-02
DE19627030C2 (de) 1998-07-23

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