Apparatus for finishing slide fastener chain with reinforcing st

Details Apparatus for finishing slide fastener chain with reinforcing st Apparatus for finishing slide fastener chain with reinforcing st

1985-08-13

1987-02-10

Chiesa, Richard L.

Metal working

Means to assemble or disassemble

Slide fastener

29 332, 425142, 425545, 425814, A41H 3706, B21D 5350

Patent

active

046414240

ABSTRACT:
A slide fastener chain with reinforcing strips is fed along a feed path through a finishing apparatus for trimming the reinforcing strips. The finishing apparatus has a chain guide unit, a cutter unit, and a chain tensioner unit. The chain guide unit includes a stop having recesses for accommodating some coupling elements and steps for engaging endmost coupling elements. The chain tensioner unit has a presser gripper for pressing the slide fastener chain against a support base and a presser roller for depressing the slide fastener chain to tension the same for thereby forcibly pushing the endmost coupling elements against the steps. When the slide fastener chain is tensioned by the chain tensioner unit, one of the reinforcing strips is accurately positioned with respect to the cutter unit. The reinforcing strip is then trimmed by central and side cutters which cut off excessive central and side portions completely.

REFERENCES:
patent: 2478880 (1949-08-01), Voity
patent: 3005581 (1961-10-01), Burbank
patent: 3763546 (1973-10-01), Perlman
patent: 4265014 (1981-05-01), Yoshieda et al.
patent: 4307500 (1981-12-01), Kuse
patent: 4443923 (1984-04-01), Takahashi
patent: 4453990 (1984-06-01), Takahashi
patent: 4479290 (1984-10-01), Osaki
patent: 4505659 (1985-03-01), Chijiishi et al.
patent: 4516304 (1985-05-01), Yoshida et al.
patent: 4520544 (1985-06-01), Morita et al.

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