| 摘要 |
<p>The lifting device (1) has an arm (3), which is swivel mounted around an axis of rotation (SA) and a guide roller is also present. The free end of the arm is led to a rope, which can be coiled, on motor propelled drum (16). The device is foldable when not in use and the column (2) as well as arm in folded state are neighboring to each other in horizontal or vertical direction of axis of rotation.</p> |
