| 摘要 |
An article transfer apparatus is provided in which a transfer arm, having a pair of pivotable grippers on each of its ends, is fixedly mounted upon one end of a shaft, extending radially therefrom, the shaft being supported so as to be rotatable and axially movable by actuators. The apparatus further comprises a wedge member movable axially of the shaft for simultaneously operating the pairs of grippers, the wedge member being supported to be floatable radially of the shaft, so that reliable gripping actions are effected on both pairs of grippers. |
