Abstract: The invention relates to a coupling system for connecting at least one supply line between a towing vehicle and a trailer, the first end of said at least one supply line being attached to the towing vehicle in a fixed manner, and the second end thereof comprising a connector that can be connected to a supply line interface of the trailer. The aim of the invention is to provide a coupling system for the supply lines, by which means a complicated operation between the trailer and the driver's cab of the towing vehicle is avoided. To this end, a coupling system is provided, whereby the supply line interface can be displaced out of a traveling position into an operating position.

Abstract: A line magazine for a supply line on a semimounted trailer with a king pin and a wedge connector pivoted on the king pin is described. The underlying problem of the invention was to provide a line magazine which prevents the supply line from hanging down in a mechanically simple way, while on the other hand it provides a constant pretensioning of the supply line. The problem is solved according to the invention with a line magazine that comprises a housing and a drum disk mounted in the housing and able to rotate, while the drum disk is preloaded by a spring element and the supply line engages by its front segment of line with the wedge connector and is led out from the housing by its rear segment of line in fixed manner.

Abstract: The invention relates to a coupling system for connecting at least one supply line between a towing vehicle and a trailer, the first end of said at least one supply line being attached to the towing vehicle in a fixed manner, and the second end thereof comprising a connector that can be connected to a supply line interface of the trailer. The aim of the invention is to provide a coupling system for the supply lines, by which means a complicated operation between the trailer and the driver's cab of the towing vehicle is avoided. To this end, a coupling system is provided, whereby the supply line interface can be displaced out of a traveling position into an operating position.