Metal working – Method of mechanical manufacture – Assembling or joining
Patent
1998-10-13
2000-01-11
Bryant, David P.
Metal working
Method of mechanical manufacture
Assembling or joining
292435, 292835, B21D 3900
Patent
active
060122153
ABSTRACT:
A device for inserting multiple self clenching fasteners into a sheet of material with a press machine is disclosed. The press machine includes a ram and an anvil. In one embodiment, the device comprises a cylindrical member having a first end and a second end, and wherein the first end contains a bore and the second end is mounted to the anvil. The first end of the cylindrical member has formed thereon a shoulder. The device further includes a sleeve disposed about the shoulder and a spring for biasing the sleeve upward in the first position. In one embodiment, the sleeve is biased by the spring at a height above one end of the cylindrical member. The spring may be a urethane band or mechanical spring placed about the cylindrical member. The device further comprises a cylindrical cover attached to the sleeve, with the cylindrical cover being disposed over the compression spring. Also disclosed herein is a method for inserting self clinching fasteners into a sheet of material with a press.
REFERENCES:
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patent: 4596349 (1986-06-01), Herten
patent: 5237733 (1993-08-01), Ladouceur et al.
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Begneaud Manufacturing, Inc.
Bryant David P.
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