Patent ID: 6070864
Filing Date: 2000-06-06
Classification: B23Q

Abstract:
A workpiece positioning apparatus comprising:a housing;a motor assembly mounted on the housing and having an output shaft rotational about an output shaft axis;a driving member positioned within the housing, driven by the output shaft, and defining a driving crank arm;means defining a pivot shaft journaled in the housing for rotation about an axis laterally spaced from and parallel to the rotational axis of the output shaft;a driven member positioned within the housing, drivingly connected to the pivot shaft, and defining a driven crank arm;a rod assembly positioned within the housing, pivotally connected at one end thereof to the driving crank arm, and pivotally connected at another end thereof to the driven crank arm; anda workpiece engaging member fixedly mounted on the pivot shaft, positioned exteriorly of the housing, and movable pivotally in response to actuation of the motor about the rotational axis of the pivot shaft between a working position and a retracted position.