| 摘要 |
<p>The device (1) has a support (2) for an arm (4) that is utilized for gripping, and a counterweight (5) that is utilized for balancing the gripping arm. The counterweight is movable in a balanced manner between a position close to a balancing axis (RE) and a balancing position that is remote from the axis. The counterweight is movable by the action of a displacement unit (8) e.g. translation jack. The displacement unit comprises an end that is attached to the balancing axis, and another that is attached with a body of the counterweight.</p> |
