| 摘要 |
<p>In the invention a vertically adjustable turntable (1) comprises two relative to each other movable bodies (2, 4). The inner body (4) comprises threaded elements (7, 8) incorporating a shape guiding a kingpin (9), of which elements one is secured to the body (4) and the other is arranged to be rotatable in relation to the same. The element (8) having a male threading when being rotated locks the kingpin (9) into its position and additionally through the kingpin pulls a device (11) against the turntable.</p> |
