| 摘要 |
<p>A displacement apparatus comprising a first rail (2) and a second rail (4), extending substantially parallel thereto, while on the first rail a first driving gear (8) with a first motor (12) is provided and on the second rail a second driving gear (10) with a second motor (20) is provided, the first and the second rail comprising at least one inclined portion, and control means being provided for the two motors, which control means are arranged for controlling the first and the second motor in a force-controlled manner at least on a portion of the at least one inclined part of the first and the second rail. <IMAGE></p> |
