| 摘要 |
<p>The device has a crown wheel (4) and the wheel (2), which is supported separately at fork elements (6, 7). The fork elements are arranged on common fork head (14) at moving swivel axes (8,10) rotating in vertical direction to each other. The fork element is held in a stationary position at the swivel axis by a spring unit (9), such that the swivel axis carryout a limited pivotal motion by a force effect and revert again in the stationary position after the exit of the force effect.</p> |
