Handling: hand and hoist-line implements – Hook – hoistline – or grab type – Locking device
Patent
1979-05-17
1981-02-24
Cherry, Johnny D.
Handling: hand and hoist-line implements
Hook, hoistline, or grab type
Locking device
414753, B25J 1504, B66C 142
Patent
active
042523613
ABSTRACT:
The actuating unit mounts a workpiece gripping and transporting jaw assembly and has an elongated hanger rod supporting a first mount boss. A pneumatic cylinder is arranged below the rod and secured to the boss and has a conventional piston and piston rod projecting from the cylinder. The improvement which comprises an elongated guide rod between the cylinder and hanger rod slidably positioned through the mount boss projecting forwardly thereof and at one end supporting a jaw mount assembly having a longitudinal bore. A stroke adjuster collar is secured upon the other end of the guide rod and adapted to limit forward movement of the jaw mount assembly. A rod adapter is movably positioned through the bore of the jaw mount assembly which includes a first mount flange on the forward end thereof. A jaw assembly includes a body having an annular mounting flange at one end mounted upon the first mount flange and adjustably secured thereto. A pair of opposed workpiece gripping jaws are pivotally mounted within and project forwardly of the body. A reciprocal plunger is nested within the body axial to and operatively connected to the piston rod and rod adapter. A control mechanism is mounted upon the plunger and operatively engages the jaws for successively closing and opening the jaws corresponding to reciprocal movements of the plunger.
REFERENCES:
patent: 3013835 (1961-12-01), Blatt
patent: 3583752 (1971-06-01), Panissidi
patent: 3635514 (1972-01-01), Blatt
patent: 3714870 (1973-02-01), Blatt
patent: 3734556 (1973-05-01), Misawa
Descoteaux Claude
Wenzel Chester
Cherry Johnny D.
State Manufacturing, Inc.
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