Fastening apparatus

Details Fastening apparatus Fastening apparatus

1995-05-10

1998-04-14

Watson, Robert C.

Metal working

Means to assemble or disassemble

Overedge assembling means

B23P 1100

Patent

active

057378193

ABSTRACT:
A fastening apparatus includes a spring operable to inwardly bias a pair of die blades toward an anvil. In one aspect of the present invention, the anvil and die blades act in conjunction with a punch to form either an interlocking lanced joint or a contiguous, leakproof, inverted mushroom-shaped joint. In another aspect of the present invention, the anvil has a flat external face. In yet another aspect of the present invention, the spring includes a pair of spring arms joined by a bridge. In still another aspect of the present invention, the spring extends around an external surface of a die body. In a further aspect of the present invention, a discontinuous contact surface of the anvil is provided.

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