| 摘要 |
<p>The extension arm has telescopic stages that can be retracted and deployed by a piston-cylinder-unit (2). A cylinder tube (4) of the cylinder unit is guided within the telescopic stages from a guiding arrangement (1). The guiding arrangement has guiding profiles (5, 6) that are connected with a cylinder tube and are coupled with the cylinder tube via several distanced bar components (7) in a longitudinal direction (LR) of the cylinder tube. The bar components are relatively movable against the cylinder tube. A fixed bearing (10) is arranged at an end of the cylinder tube.</p> |
