Apparatus for installing sliders on a gapped slide fastener chai

Details Apparatus for installing sliders on a gapped slide fastener chai Apparatus for installing sliders on a gapped slide fastener chai

1988-07-05

1989-11-28

Briggs, William

Metal working

Plural diverse manufacturing apparatus including means for...

Slide fastener or slide fastener element

29408, 29768, B21D 5367, A44B 1941

Patent

active

048828246

ABSTRACT:
Apparatus grips and pulls zipper chain along from supply to a desired finite length, installing slider on the way. When next gap in chain is detected by a finger which inserts itself into gap and abruptly stops further advance of tape, a cutter closes to cut chain to length. Puller is driven by air cylinder, and back pressure is applied soon after puller starts. This reduces pulling force and eliminates tearing of zipper tape as tape is abruptly stopped.

REFERENCES:
patent: 3530563 (1970-09-01), Maeda
patent: 3714698 (1973-02-01), Fukuroi
patent: 4131993 (1979-01-01), Azzara
patent: 4494293 (1985-01-01), Kawakami
patent: 4520544 (1985-06-01), Morita et al.
patent: 4625398 (1986-12-01), Kando
patent: 4631818 (1986-12-01), Sassa et al.
patent: 4756079 (1988-07-01), Kando
patent: 4771522 (1988-09-01), Osaki

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