Backup for a clamp crimper

Details Backup for a clamp crimper Backup for a clamp crimper

1989-02-21

1989-12-05

Crane, Daniel C.

Metal deforming

By tool-couple embodying nonplanar tool-face

With complementary tool-faces

81 93, 292435, B21D 706, B23P 1100

Patent

active

048844322

ABSTRACT:
In combination with a manually operated crimper for tightening ear clamps in which the tool has two complementary lever arms with handles at one end and jaw portions at the other end of a backup disk. A disk is positioned in a slot in the arms of the tool and encircles and rotates around the tool pivot pin. An arcuate anvil is positioned at the outer periphery of the disk and forms an outer backup surface. Anvil shoulders at each end of the anvil coact with shoulders on the arms. The disk is rotated and held adjacent the jaw portions as the jaws close for engaging the clamp ear.

REFERENCES:
patent: 838008 (1906-12-01), Chandler et al.
patent: 1038109 (1912-09-01), Flora
patent: 1084935 (1914-01-01), Flora et al.
patent: 1691353 (1928-11-01), Jones
patent: 1693755 (1928-12-01), Hotz
patent: 3257874 (1966-06-01), Madeira
patent: 3475793 (1969-11-01), Oetiker
patent: 4003238 (1977-01-01), Oetiker
patent: 4111022 (1978-09-01), Kruschel
patent: 4724729 (1988-02-01), Oetiker

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