Method of and apparatus for cutting off separable slide fastener

Details Method of and apparatus for cutting off separable slide fastener Method of and apparatus for cutting off separable slide fastener

1985-09-25

1987-03-24

Coan, James F.

Cutting

Processes

Plural cutting steps

83210, 83921, B26D 528

Patent

active

046516034

ABSTRACT:
An elongate separable slide fastener chain is cut off into individual separable slide fasteners, the slide fastener chain having a plurality of longitudinally spaced element-free portions with pin-receptive boxes supported respectively thereon. The slide fastener chain is fed under tension in one direction, and then stopped to release the slide fastener chain of its tension. The leading and trailing ends of one of the boxes are clamped to position the slide fastener chain. Then, the slide fastener chain is severed across one of the element-free portions adjacent to the leading end of the box. With this arrangement, the slide fastener chain can be positioned accurately for severance and cut off into separable slide fasteners which are sightly in appearance and equal in length.

REFERENCES:
patent: 3776078 (1973-12-01), Perlman
patent: 4250781 (1981-02-01), Nakamura
patent: 4262569 (1981-04-01), Yoshieda et al.
patent: 4459884 (1984-07-01), Yoshieda et al.
patent: 4524659 (1985-06-01), Yunoki

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