摘要 |
<p>The device has a drive vehicle (2), and a catering module (3) coupled with the drive vehicle. The drive vehicle is a motor operated midget vehicle with two wheels (4). The catering module is a unit that is coupled with the drive vehicle over a movable bearing (8) and is drivable by the catering module. The unit has a wheel (5) and a supporting and locking device (6).</p> |