Ronny Lynn Land

US Patent:

45441936, Oct 1, 1985

Filed:

Apr 6, 1983

Appl. No.:

6/482600

Inventors:

Jimmy L. Dunn - Hurst TX
Lonnie D. Gilstrap - Arlington TX
Ronny L. Land - Benbrook TX
Frank C. Romeo - Fort Worth TX

International Classification:

B25J 1502

US Classification:

294 864

Abstract:

A robot gripper for grasping objects. The gripper has a pair of fingers slidably mounted on a hand so the fingers may be moved in opposite directions along parallel axes. Each finger has a rack attached, and each rack is, in turn, drivingly engaged by a pinion. The pinions are rotatably mounted in the hand, and each has a link pivotally connected to the outer perimeter of the pinion. The other ends of the links are attached together and to the piston rod of a fluid cylinder. As the piston rod is moved, the links rotate the pinions in opposite directions, driving the racks and fingers together or apart, to selectively grasp or release objects.