| 摘要 |
<p>A trough-shaped table bed rests on a base, and between the base and the table bed underside are roller elements. The roller elements consists of round bars (5) aligned parallel to the table bed longitudinal axis. As a fixing device, one of the bars has a stop which limits it rotation and can be brought into the region at its roller path. The stop is a sheath section (6) which grips around the bar (5) and has radial projections (7, 8). The bar and sheath section can be engaged and disengaged from each other.</p> |
