| 摘要 |
<p>The lifting device is for moving two goods carrying platforms between different levels. The platforms are provided to perform a synchronous displacing movement in opposite directions relative to each other in one single path of travel. For the movement of the platforms, transmissions are provided including two elongated flexible traction elements, preferably two chains. The one end of each element is fixed by anchoring to a stationary part of the lifting device and the other end is fixed to one of the performs. A number of pulleys are provided to perform a linear reciprating movement by means of driving mechanism.</p> |
