Handling: hand and hoist-line implements – Hook – hoistline – or grab type – Locking device
Patent
1985-05-30
1986-12-16
Cherry, Johnny D.
Handling: hand and hoist-line implements
Hook, hoistline, or grab type
Locking device
2941191, 901 37, B25J 1508
Patent
active
046292373
ABSTRACT:
A chuck for a robot or the like of a parallel opening/closing type. A piston is slidably supported in a cylinder, slidable in a first direction. A pair of slide pawls are slidably mounted so as to be movable in a second direction, perpendicular to the first direction, for performing opening/closing movement. The pawls are biased in the opening direction. A pair of action levers are rotatably supported on the cylinder, abutting an end of the piston and engaging with respective ones of the pawls. A pair of shafts are provided on the cylinder for guiding fulcrums of the action levers and the slide pawls. Each of the pawls has a reference portion projecting upwardly, two elongated holes, and a slot portion at a center portion thereof for receiving corresponding ones of the action levers. The reference portion of one of the slide pawls, the action levers, and the reference portion of the other one of the slide pawls are supported side by side on these shafts.
REFERENCES:
patent: 3170322 (1965-02-01), Cavanaugh
patent: 4518187 (1985-05-01), Blatt et al.
Cherry Johnny D.
Machine Engineering Co., Ltd.
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