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Title:
METHOD AND WELDING THERMOPLASTIC RESIN BAND AND WELDED BAND
Document Type and Number:
Japanese Patent JPH07172405
Kind Code:
A
Abstract:

PURPOSE: To improve welding strength due to an increase in an welded area by forming a plurality of fused parts lengthwise on a band surface by heating plates while unfused parts are left between the fused parts and making a plurality of welded parts separated by unwelded parts at once by pressing.

CONSTITUTION: Heating plates 6, 7 are inserted into an overlapped part 13 of a band 1, and pressing parts 8, 9 are raised to cut a tightened part of the band 1. Then the pressing parts 8, 9 are raised to push the overlapped part 13 against a slide table 3, so that an overlapped face of the band 1 is fused by heat conduction from the heating plates 6, 7. Only a plurality of fused parts distant in a lengthwise direction of the band 1 are welded on the overlapped face while unwelded parts are left between them. Thus an increase in an welded area allows welding strength to be improved.


Inventors:
FUJII NOBORU
KAWABATA KENJI
TACHIBANA MASAAKI
NIIKURA JUNJI
OOYA TOMOTOSHI
Application Number:
JP1992000112070
Publication Date:
July 11, 1995
Filing Date:
April 03, 1992
Export Citation:
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Assignee:
SEKISUI JUSHI KK
International Classes:
B29C65/00; B29C65/06; B29C65/20; B29C65/74; B65B13/32; (IPC1-7): B65B13/32
Domestic Patent References:
JP48071092B
JPS53125480A1978-11-01
JPS541239A1979-01-08
Attorney, Agent or Firm:
酒井 正美