| 摘要 |
According to the invention, a drive unit for trailers or caravans is provided that has a chassis ( 2 ) with crawler sections ( 3 ), a coupling device ( 4 ) and steering and maneuvering devices. The drive unit is coupled to the trailer or caravan and is used to position the trailer or caravan in a controlled and simple manner, without having to worry about the risk of colliding with a neighbor or damaging one's own vehicle.
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