Forming tool and method

Details Forming tool and method Forming tool and method

1998-02-18

1999-11-09

Larson, Lowell A.

Wireworking

Crimping

724668, B21F 100

Patent

active

059795107

ABSTRACT:
A pivot punch that has no explicit pivot point. In one embodiment, the tool includes a die, a punch holder pressable along a path toward the die and a punch supported by the punch holder. The punch extends through and is pivotable in an opening in the holder to move the lower part of the punch laterally toward the center of the die. In another embodiment, the upper part of the punch is held tightly in the holder. The lower part of the punch is flexible to move laterally toward the center of the die. A pivot punch that has no explicit pivot point. The punch is flexible and the punch pivot is permitted by the flexibility of the punch.

REFERENCES:
patent: 2911014 (1959-11-01), Van Nest
patent: 3086411 (1963-04-01), De Lancey
patent: 3696846 (1972-10-01), Rotondo et al.
patent: 5135034 (1992-08-01), Miyamoto
patent: 5158121 (1992-10-01), Ishii
patent: 5375630 (1994-12-01), Kim

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