| 摘要 |
A moving fitting (16, 18, 20) is used to switch the support wheel arrangement and/or the support wheel belonging to it from a position where the wheel props up the trailer, and a position where the wheel is no longer in contact with the floor, so that the trailer can be towed. A lock (22, 28) fixes the moving fitting into position and is linked by an electrical connection to a coupling (34) for plugging into the electricity system of the towing vehicle. Applying a voltage to the lock releases the lock so that the support wheel is moved. |
