Powered clamp with parallel jaws

Details Powered clamp with parallel jaws Powered clamp with parallel jaws

1991-03-11

1993-03-02

Marmor, Charles A.

Handling: hand and hoist-line implements

Hook, hoistline, or grab type

Locking device

294 94, 2941191, B25J 1508

Patent

active

051903342

ABSTRACT:
An improved clamping mechanism for removably clamping an object having at least two jaws that clampingly engage surfaces upon the object. This clamping mechanism utilizes a housing that has a chamber and a plurality of passages that lead radially from the chamber through the housing walls. A camming member is disposed within the chamber and is engaged with a plurality of follower members that are partially disposed within the radial passages. An actuating member actuates this camming member axially within the chamber to cam the follower members radially inward or outward, thereby radially displacing the jaws which are attached to the follower members. Since the follower members are shaped to correspond with the radial passages, the follower members slidingly engage with the radial passages. This engagement between the follower members and the passage walls restricts the displacement of the follower members, and thus the jaws, to purely translational displacement, radially inward and outward.

REFERENCES:
patent: 1790761 (1931-02-01), Ortolon
patent: 3863961 (1975-02-01), Dinning
patent: 4273372 (1981-06-01), Sheshtawy
patent: 4865375 (1989-09-01), Laub et al.

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