Apparatus for manufacturing bidirectionally openable slide faste

Details Apparatus for manufacturing bidirectionally openable slide faste Apparatus for manufacturing bidirectionally openable slide faste

1987-11-13

1989-03-07

Weidenfeld, Gil

Metal working

Plural diverse manufacturing apparatus including means for...

Slide fastener or slide fastener element

29408, 29768, B23P 1904, A41H 3706

Patent

active

048094145

ABSTRACT:
In an apparatus for manufacturing a bidirectionally openable slide fastener, a guide unit is disposed between a pair of spaced first and second slider attachment units for holding taut an individual slide fastener length between the guide unit and a chain gripper even when the individual slide fastener length is severed from a slide fastener chain after the threading of a first slider on the first slider attachment unit but before the threading of a second slider on the second slider attachment unit. With this guide unit, the individual slide fastener length is tensioned properly, so that the second slider can be smoothly and reliably threaded over the slide fastener length.

REFERENCES:
patent: 2287507 (1942-06-01), Antonietta
patent: 3570104 (1971-03-01), Jensen
patent: 3945103 (1976-03-01), Fujisaki et al.
patent: 4217685 (1980-08-01), Jeki
patent: 4325982 (1982-04-01), Gillette et al.
patent: 4625398 (1986-12-01), Kando
patent: 4627807 (1986-12-01), Kuse
patent: 4650091 (1987-03-01), Jassa et al.

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