| 摘要 |
<p>The machine has a mast arranged at a console. A gripper i.e. protective wall gripper, is suspended at a holding rope (20). The rope is guided over a rope roll at a winch. The rope bridges a fall height between the gripper and the rope roll. A mechanically adjustable rope fall height varying device (26) is arranged between the winch and the gripper. The rope is guided through the varying device. The varying device is actuated by a hydraulic cylinder (44) so that the fall height of the rope is varied between lengths associated to respective lifting and lowering positions of the gripper.</p> |
