EP 0949060 A4 20040825 - LEAK RESISTANT SEAMED STRUCTURE, METHOD OF FORMING SAME, AND HEAT PROCESSING DEVICE FOR SAME

Title (en)

LEAK RESISTANT SEAMED STRUCTURE, METHOD OF FORMING SAME, AND HEAT PROCESSING DEVICE FOR SAME

Title (de)

LECKBESTÄNDIGE GENÄHTE STRUKTUR, VERFAHREN ZU DEREN HERSTELLUNG UND WÄRMEBEHANDLUNGSVORRICHTUNG DAFÜR

Title (fr)

STRUCTURE COUSUE RESISTANTE AUX FUITES, SON PROCEDE DE CREATION ET SON DISPOSITIF DE TRAITEMENT THERMIQUE

Publication

EP 0949060 A4 20040825 (EN)

Application

EP 96938514 A 19961120

Priority

JP 9603403 W 19961120
JP 11275096 A 19960507

Abstract (en)

[origin: EP0949060A1] A seamed structure formed with seams which are soak- and leak-resistant to be suitable for three-dimensionally shaped, processed products such as shoes and the like, and a method of forming the same. The seamed structure has a feature in that a face material and a back material are seamed along seam lines through a hot melt adhevise resin layer, sewing needle holes defining the seam lines are filled with a part of a resin of the hot melt adhesive resin layer, and the face material is water-proof. The seamed structure can be prepared by a method which includes the following processes: (A) a process of preparing a precursor seamed layer structure by sewing the water-proof face material and the back material at least along the seam lines with a specified hot melt adhesive resin sheet between them; (B) while pressing the seamed layer structure by means of surfaces of a specified pressure plate body, applying sufficient high-frequency voltage to melt the hot melt adhesive resin sheet, thus fluidizing only the hot melt adhesive resin sheet and having a part of the resin sheet enter and fill into the sewing needle holes which constitute the seam lines. An embodiment of a method of forming the seamed structure is disclosed together with a high-frequency heating processing device, which is suitable for processing of shoes. <IMAGE>

IPC 1-7

B29D 31/50; A43B 9/02; A43B 9/20; A45C 13/00; A41D 27/24

IPC 8 full level

A43B 9/02 (2006.01); A43D 11/12 (2006.01)

CPC (source: EP)

A43B 9/02 (2013.01); A43B 23/022 (2013.01); A43B 23/025 (2013.01); A43B 23/0295 (2013.01); A43D 11/12 (2013.01)

Citation (search report)

[XA] GB 870453 A 19610614 - COMMUNICATIONS PATENTS LTD
[XA] GB 873347 A 19610726 - BAXTER BROTHERS AND COMPANY LT
[X] US 4604152 A 19860805 - LIUKKO LASSE [FI]
[XA] GB 2071564 A 19810923 - CLARES CARLTON LTD
[X] GB 2289613 A 19951129 - LAW TRADING COMPANY LTD [GB]
[X] US 2528491 A 19501107 - BRADLEY ROBERT W, et al
[A] US 2658213 A 19531110 - HART GEORGE T
[X] PATENT ABSTRACTS OF JAPAN vol. 1996, no. 08 30 August 1996 (1996-08-30)
[X] PATENT ABSTRACTS OF JAPAN vol. 0186, no. 34 (C - 1281) 2 December 1994 (1994-12-02)
See references of WO 9742024A1

Designated contracting state (EPC)

DE FR GB IE IT NL SE

DOCDB simple family (publication)

EP 0949060 A1 19991013; EP 0949060 A4 20040825; JP 3253305 B2 20020204; NO 311914 B1 20020218; NO 985191 D0 19981106; NO 985191 L 19990107; TW 310302 B 19970711; WO 9742024 A1 19971113

DOCDB simple family (application)

EP 96938514 A 19961120; JP 53972797 A 19961120; JP 9603403 W 19961120; NO 985191 A 19981106; TW 85114533 A 19961125