| 摘要 |
<p>A height-adjustable actuation device comprises a drive for height adjustment of the actuation device; a casing having a longitudinal axis; a hollow spindle arranged in the casing for displacement of a first lid arranged on the hollow spindle along the longitudinal axis; an internal spindle arranged inside the hollow spindle for displacement of a second lid arranged on the internal spindle along the longitudinal axis, with the hollow spindle and the internal spindle being non-rotatably connected to each other in terms of a rotation about the longitudinal axis, and with the hollow spindle and the internal spindle being displaceable relative to each other along the longitudinal axis.</p> |
