COUPLING HEAD ARRANGEMENT FOR CONNECTING A TRAILER TO A TOWING VEHICLE

摘要

The invention relates to a coupling head arrangement for pneumatically connecting an air brake system of a trailer (1) to a towing vehicle (2) by means of a supply line (3) and a service line (5), which use a correspondingly formed pair of coupling heads (2, 2'; 4, 4') for the supply line (3) and the service line (5). The trailer coupling heads (2, 4) contain a pneumatic connection (17) extending transversely between the supply line (3) and the service line (5) in order to pressurize the service line (5) after the towing vehicle coupling head (2') of the supply line (3) has been coupled to the corresponding trailer coupling head (2) thereof.