| 摘要 |
<p>The device has a foot part (1), several holding devices (2) around a central or symmetry axis, pivotable between fixing and release positions and a clamping device (3) for pivoting the holding devices via a force transfer device (6). Each holding device consists of at least two elements (12) above each other at a distance apart and pivotable approximately parallel to the foot part on a pivot axle (13,13a,13b) joined to the foot part. The elements are joined by connecting studs (16,16a,16b) subject to the force transfer device at the free ends to allow limited independent pivoting.</p> |
