Metal working – Plural diverse manufacturing apparatus including means for... – Slide fastener or slide fastener element
Patent
1993-07-20
1994-11-08
Bilinsky, Z. R.
Metal working
Plural diverse manufacturing apparatus including means for...
Slide fastener or slide fastener element
29 34A, 29410, 29769, 83 78, 83679, B21D 5350
Patent
active
053614712
ABSTRACT:
As it is intermittently supplied, a blank wire having a generally Y-shape cross section is cut into slices of a predetermined thickness by a cutting punch, which is fixed to the frame, and a coacting cutting die, which is reciprocatingly movable in the cutting direction. Then a bulge is formed on the head portion of the cut coupling element by a bulge forming die, which is connected with the forward end in stroke direction of the cutting die, and a coacting bulge forming punch, which is movable upwardly and downwardly. The cutting punch is equipped with preventing means on the upper side of the end of a blade for preventing the cut coupling element from jumping up from the blade, so that a bulge can be formed on the head portion reliably, without giving any damage to peripheral equipments.
REFERENCES:
patent: 1947956 (1934-02-01), Sundback
patent: 2141200 (1938-12-01), Sundback
patent: 2763051 (1956-09-01), Firing
patent: 2804677 (1957-09-01), Poux
patent: 4550477 (1985-11-01), Iai
patent: 4974305 (1990-12-01), Matsuda
Matsuda Yasuhiko
Morioka Koitsu
Bilinsky Z. R.
Yoshida Kogyo K.K.
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