| 摘要 |
The invention relates to a trailer coupling for connecting a traction vehicle to a trailer, a coupling part (2) mounted at the back of the vehicle being adapted to receive a coupling end part (3) fixed to the trailer, and a locking mechanism (20, 13) being adapted to fix the coupling end part (3) to the coupling part (2) so as to secure the mechanical connection of the vehicle to the trailer. The coupling end part (3) has an essentially wedge-shaped main portion (4), and the coupling part (2) has a receiving space (9) which is adapted to the shape of said main portion (4). Further, the coupling comprises separately operable means (30) for connecting fluid lines as well as electric wires (16, 17) of the vehicle and the trailer respectively, said means (30) being arranged to be operable, when the mechanical connection is secured by means of the locking mechanism (20, 13), in order to secure connection of said electric wires and fluid lines through suitably positioned holes in respectively the receiving space (9) and the main portion (4) of the coupling end part. The connection of electric wires and fluid lines takes place according to the invention in a sequential process, which eliminates the risk of the connectors being damaged.
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