| 摘要 |
<p>The vehicle has a housing (3) suspended from a gantry through a linkage system. The housing and the linkage system move between low position and high position. The high position corresponds to loading position of the housing, and the low position corresponds to unloading position of the housing. A set of locking mechanisms e.g. hooks, is arranged in upper position of the linkage system during loading of the housing. A lifting unit is utilized for lifting the housing without applying external energy.</p> |
