| 摘要 |
<p>The telescopic mast comprises a principal mast (MP) in which an auxiliary mast (MA) slides controlled by an actuator. A jib (FL) with a section corresponding to the auxiliary mast slides in the auxiliary mast and is controlled by an actuator. A balancing pole (BA) with a smaller section than the auxiliary mast slides in the auxiliary mast and has its foot articulated to the jib head. A balancing actuator is supported in the jib. A tool holder head (TPO) is articulated to the balancing pole head and a balancing actuator controls the tipping of the tool holder relative to the balancing pole.</p> |
