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Title:
AUXILIARY FILM WELDING APPARATUS OF SLIDE FASTENER CHAIN
Document Type and Number:
Japanese Patent JPS6437905
Kind Code:
A
Abstract:
PURPOSE: To stop the feed of a slide fastener chain or the raising of an amble when the feed of an auxiliary film fails by providing a sensitive roller driven and rotated in pressure contact with a lengthy auxiliary film extending to a feed roller on a holder. CONSTITUTION: An auxiliary film feed sensing part 16 provided on a holder 9 has a sensitive roller 48 pressed onto a lengthy auxiliary film 27. A control element detecting sensor 52 senses that the lengthy auxiliary film 27 is supplied in a prescribed quantity when the sensitive roller 48 is driven to detect a control element 51 to instruct the stop of a cylinder 33 and also instruct the drive of cylinders 11, 25. When the control element 51 is not detected even when the sensitive roller 48 is rotated to stop the feed, a shortage of feed is caused, and the stop of the feed of the chain 1 of a traveling passage is also instructed. When a feed roller 31 is normally rotated, but the control element 51 is not detected when the lengthy auxiliary film 27 is fed onto the amble 14 of a vertical hole 24 in a prescribed quantity, the feed of the chain 1 is stopped.

Inventors:
MIYAZAKI KUNIO
Application Number:
JP19597887A
Publication Date:
February 08, 1989
Filing Date:
August 04, 1987
Export Citation:
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Assignee:
YOSHIDA KOGYO KK
International Classes:
A44B19/34; A44B19/42; A44B19/60; B29C65/08; (IPC1-7): A44B19/60
Domestic Patent References:
JPS58188402A1983-11-02
JPS609817B21985-03-13
JPS6097367A1985-05-31