Handling: hand and hoist-line implements – Grapple – Pivoted jaws
Patent
1987-10-22
1989-02-21
Cherry, Johnny D.
Handling: hand and hoist-line implements
Grapple
Pivoted jaws
294 8232, B25J 1510, B66C 166
Patent
active
048059510
ABSTRACT:
A gripping mechanism for gripping a retraction cone attached to a workpiece includes an outer shroud formed of an outer tubular part and an outer funnel-shaped part; a gripping device which is axially movable within the outer shroud, the gripping device including a tubular sleeve which has wings axially movable with axial slots in the outer tubular part and a plurality of finger elements with hook-shaped ends attached to the wings; an operating device which includes an independently rotatable sleeve threadingly engaged in the tubular sleeve and an inner funnel which is attached to the outer funnel-shaped part and which includes control slots for the finger elements; and a motor for rotating the rotatable sleeve so as to either axially move the tubular sleeve within the outer shroud such that the finger elements move towards the retraction cone for gripping the retraction cone or, after having gripped the retraction cone, in an opposite direction to position the retraction cone within the inner funnel.
REFERENCES:
patent: 509310 (1893-11-01), Heberling
patent: 687165 (1901-11-01), Quinby
patent: 941558 (1909-11-01), Cloak
patent: 2280422 (1942-04-01), Harcos
patent: 4036353 (1977-07-01), Suter
Andersson Rolf J.
Hoglund Kjell
Hoyland Sigbjorn
Husebye Ragnar
Lindland Hans
AB Asea-Atom
Cherry Johnny D.
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