Gripper mechanism having spring-loaded jaws

Details Gripper mechanism having spring-loaded jaws Gripper mechanism having spring-loaded jaws

1989-07-26

1991-10-08

Cherry, Johnny D.

Handling: hand and hoist-line implements

Grapple

Pivoted jaws

294907, 414739, 414932, 901 38, 901 39, B25J 1508, B66C 142

Patent

active

050548360

ABSTRACT:
A gripper for grasping articles in an automatic or semi-automatic handling system includes spring-loaded jaws. No fasteners such as screws, pins, or the like are required to hold the jaws to the gripper assembly. The jaws are moved by way of motor-driven cams. During a grip mode, the cams do not contact the jaws, and the grip is achieved by way of the springs acting against rollers contacting the outside of the jaws. A worm on the motor shaft compresses a spring to buffer the deceleration of the motor. The spring applies a moment to worm gears which mate with the worm on the motor shaft. The gear shaft of each worm gear is operatively coupled to a respective camshaft. In this manner, the cams are locked.

REFERENCES:
patent: 4055943 (1977-11-01), Reischert
patent: 4343077 (1982-08-01), Satoh et al.
patent: 4469362 (1984-09-01), Schaarschmidt et al.
patent: 4473147 (1984-09-01), Bouwman
patent: 4498573 (1985-02-01), Anderson et al.
IBM Technical Disclosure Bulletin, vol. 17, No. 8, Jan. 1975, "Gripper Mechanism" by Sirico.

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