摘要 |
<p>The gripper chucks (11a,11b,12a,12b) are activated by toothed push bars (13,14) by a rotational part (17) of a robot and toothed segments (13a,13b,14a,14b) so that when one (12a,12b) is in operation the other (11a,11b) is parked in a neutral position.</p> |