Tool head

Details Tool head Tool head

1996-03-15

1998-03-24

Jones, David

Metal deforming

With means to drive tool

Including pneumatic- or fluid-actuated tool support

7240914, B21J 918, B21D 706

Patent

active

057300224

ABSTRACT:
A tool head comprising a fixed jaw (20), a movable jaw (21) journalled for movement towards and away from the fixed jaw, a pressure plunger-cylinder means (12-18) for driving the movable jaw, an electric control circuit (36-38, 40, 41, 51) for operating the plunger-cylinder means, and connecting means (52-55, 57) for connecting the plunger-cylinder means (12-18) and the control circuit to an electrical power and pressure-medium supply source separate from the tool head through the medium of a flexible conduit. The movable jaw (21) is guided for movement relative to the plunger-cylinder means (12-18) and is spring-biassed (22) from a retracted position in which it supports against the plunger-cylinder means towards an outwardly projected position in which it is located adjacent the fixed jaw (20). The movable jaw (21) is coordinated with means (25-27, 29, 31, 32, 35) which can be actuated manually outside the region of the jaws such as to move the movable jaw (21) away from the fixed jaw (20) against the action of the biassing spring (22).

REFERENCES:
patent: 2897703 (1959-08-01), Fischer et al.
patent: 2962074 (1960-11-01), Dupre et al.
patent: 4475374 (1984-10-01), Sakai et al.
patent: 4942757 (1990-07-01), Pecora

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