Metal working – Method of mechanical manufacture – Of a slide fastener
Patent
1997-11-24
1998-09-15
Echols, P. W.
Metal working
Method of mechanical manufacture
Of a slide fastener
29770, 83921, A41H 3706, B21D 5350
Patent
active
058061630
ABSTRACT:
In forming an element-free space portion in a continuous fastener chain, legs of a number of metallic fastener elements, which legs exist on one side of the fastener chain are cut by a pair of cutting blades, and then coupling heads of the fastener elements and the legs extending from the coupling heads and existing on the other side of the fastener chain are removed from cores of fastener tapes while being clamped by a punch and a die. Therefore, it is possible to remove the fastener element portions from the fastener tapes without damaging the cores and not to require so high precision in positioning the fastener elements at a cutting station, thus the structure of a slide fastener chain manufacturing machine can be simple and hence the rate of production is improved.
REFERENCES:
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patent: 4627318 (1986-12-01), Hochlehnert et al.
patent: 4638542 (1987-01-01), Akiyama et al.
patent: 4738016 (1988-04-01), Samberg
patent: 5103540 (1992-04-01), Hirasawa
patent: 5177855 (1993-01-01), Shimai
patent: 5212863 (1993-05-01), Matsumoto
patent: 5335404 (1994-08-01), Ozaki et al.
Fujii Osamu
Kuse Kazuki
Morita Toyoo
Shimai Hideo
Echols P. W.
YKK Corporation
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