Trailer coupling for commercial vehicles has lift fork and coupling bolt in open position engaging through locking seat which is released by pressing down of coupling bolt by calotte entering mouth of coupling

摘要

The trailer coupling for commercial vehicles has a coupling bolt (2), a lift fork for the coupling bolt, and a ball calotte entering the mouth (1) of the coupling. The lift fork and coupling bolt in the open position engage through a locking seat which is released by the pressing down of the coupling bolt by the calotte entering the mouth of the coupling so that the coupling bolt is then raised and its ball head (3) engages in the calotte with a coupling action.