Device for pivoting pivotable member between closed and open pos

Details Device for pivoting pivotable member between closed and open pos Device for pivoting pivotable member between closed and open pos

1986-03-28

1988-05-10

Spar, Robert J.

Material or article handling

Vertically swinging load support

Grab

414752, 901 7, 901 40, B66C 100

Patent

active

047431598

ABSTRACT:
A device for pivoting a pivotable member about its pivot axis between its closed and open positions includes a pivot arm pivotally supported about an axis parallel and adjacent to the pivot axis of the pivotable member. A free end of the pivot arm has a mechanism attached thereto, which mechanism supports a member which is movable in a direction normal to a circular arc path taken by the free end of the pivot arm. A connector is attached to the movable member and is further connectable to the pivotable member. Upon movement of the pivot arm into correspondence with the pivotable member under action of a pivot arm actuator, the connector is connected to the pivotable member with the movable member positioned at a predetermined position by a positioning device. Once the pivot arm and pivotable member are connected by means of the connector, the positioning device permits the movable member to move in a direction normal to a circular arc path taken by the free end of the pivot arm, thereby allowing the pivot arm and pivotable member to be pivoted together despite misalignment of their pivot axes.

REFERENCES:
patent: 2518207 (1950-08-01), Wagner
patent: 4121382 (1978-10-01), Dietrich et al.
patent: 4308691 (1982-01-01), Horn
patent: 4342535 (1982-08-01), Bartlett et al.
patent: 4423999 (1984-01-01), Choly
patent: 4489640 (1984-12-01), Olson
patent: 4498414 (1985-02-01), Kiba et al.
patent: 4552506 (1985-11-01), Cummins et al.
patent: 4629385 (1986-12-01), Irie

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