Handling: hand and hoist-line implements – Grapple – Slideable jaws
Patent
1986-12-19
1988-04-05
Marbert, James B.
Handling: hand and hoist-line implements
Grapple
Slideable jaws
294 864, 414730, B66C 166, B25J 1508
Patent
active
047354526
ABSTRACT:
An article gripper assembly comprising a support member, a movable base member movable back and forth in a predetermined direction with respect to the support member, a pair of finger members movable toward and away from each other with respect to the base member in opposite directions parallel with the predetermined direction, a rotatable member rotatable about an axis fixed with respect to the base member and substantially perpendicular to the predetermined direction, link members coupling the rotatable member operatively to the finger members for converting rotation of the rotatable member in one direction about the axis of rotation of the rotatable member into movement of the finger members toward each other with respect to the base member and rotation of the rotatable member in the opposite direction about the axis of rotation of the rotatable member into movement of the finger members away from each other with respect to the base member, a pair of centering members fixedly positioned with respect to the support member, and a centering unit rotatable with the rotatable member about the axis of rotation of the rotatable member and engageable with the centering members, the centering unit having about the axis of rotation of the rotatable member and engageable with the centering members, the centering unit having about the axis of rotation of the rotatable member at least two different angular positions in each of which the centering unit is engaged by the centering members so that the base member is locked to the support member.
REFERENCES:
patent: 4605255 (1986-08-01), Olson
patent: 4616971 (1976-10-01), Matrone
patent: 4661037 (1987-04-01), Seugino et al.
Honeycutt Gary C.
Marbert James B.
Merrett N. Rhys
Sharp Mel
Texas Instruments Incorporated
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