Method of an apparatus for removing coupling elements from a sli

Details Method of an apparatus for removing coupling elements from a sli Method of an apparatus for removing coupling elements from a sli

1988-02-01

1989-05-23

Gorski, Joseph M.

Metal working

Method of mechanical manufacture

Disassembling

29410, 294265, 29770, B21D 5352

Patent

active

048317098

ABSTRACT:
Each of coupling elements mounted on a slide fastener stringer tape has a coupling head and two legs extending from the coupling head and mounted astride of a longitudinal beaded edge of the stringer tape, the legs being integrally interconnected by a connector extending through the stringer tape. The coupling elements are removed from the stringer tape by gripping the stringer tape between a pair of grippers with the coupling elements supported on the grippers, thrusting cutting edges into the coupling head of each coupling element toward the longitudinal beaded edge to break the coupling head, and driving wedge-shaped spreaders into each coupling element through the broken coupling head thereof to spread each coupling element until the connector is forcibly broken, for thereby breaking each coupling element into two pieces off the stringer tape.

REFERENCES:
patent: 3426752 (1969-02-01), Laico
patent: 4062100 (1977-12-01), Heimberger
patent: 4246681 (1981-01-01), Yamada
patent: 4325185 (1982-04-01), Kanzaka
patent: 4413398 (1983-11-01), Fisher

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