| 摘要 |
<p>The device has linear guides (3) with a sliding carriage (20) on which a chair base (21) is movably supported by the force of a spring (30). The carriage and the chair base are coupled with a damping unit. Two chain blocks include firm ends that are connected to a stationary fastening point (35) and loose ends that are fixed to the carriage. Loose pulleys of the chain blocks are arranged on the same axis of rotation.</p> |
