Patent ID: 9744821
Date: 2017-08-29
CPC Classifications: B60D

Claim:
1. Trailer coupling comprising: a cross member which is mountable on a rear region of a vehicle body, a pivot bearing unit arranged on the cross member, by means of which a ball neck carrying a coupling ball is pivotally mounted about a pivot axis between a working position and a rest position, a contact unit arranged on the ball neck for establishing an electrical connection to a unit which is fixable on the ball neck, a cable harness guided from the contact unit to the cross member and provided for connecting to a vehicle electrical supply system, a transition portion of the cable harness which is movable relative to the ball neck and relative to the pivot bearing unit from the ball neck to an attachment point connected fixedly to the cross member forms at least one loop which extends over an end face of the pivot bearing unit extending transversely to the pivot axis and which varies in shape when transferring from the working position to the rest position or vice versa, and wherein between the ball neck and the attachment point, the transition portion is guided relative to the pivot bearing unit by a guide unit, and is configured to run freely to the ball neck on one side of the guide unit and to run freely to the attachment point on the other side of the guide unit.