| 摘要 |
The invention relates to a trailer coupling for motor vehicles, comprising a bearing part (10) mounted on the vehicle and a rotating part (14) mounted on the bearing part and having a spherical neck (16) and a coupling sphere (20). The rotating part can rotate around an axis relatively to the bearing part, between a home position and a working position. The aim of the invention is to create a trailer coupling which is safe in the working position and which can be easily attached. For that purpose, the rotating part (14) has two stop elements (56, 66) placed at a distance from each other. In addition, the bearing part (10) comprises two holding elements (50, 60; 50, 160). In order to place the spherical neck (16) in the working position, one of the holding elements (60, 160) and one of the stop elements (66) co-operate in such a way that the spherical neck (16) rotates in a first direction (58), to which the other holding element (50) and the other stop element (56) are opposed. In addition, the stop elements (56, 66) and the holding elements (50, 60; 50, 160) can be laid against each other in a close-fitting way.
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