COUPLING SYSTEM FOR A TOWING VEHICLE

A coupling system for a towing vehicle, including a measuring element, wherein the coupling system has a fifth-wheel coupling plate on which a conically widened insertion region that is located in the longitudinal axis (x) of said plate and is intended for the introduction of a trailer-side coupling means and an adjoining locking region are formed, and at least two bearing blocks that engage laterally on the fifth-wheel coupling plate are provided, wherein the measuring element is situated in a mounting region of the coupling system such that operating forces (F, F) acting in the longitudinal axis (x) and/or a transverse axis (y) are determined thereby. A coupling system of which the measuring element is subjected to significantly lower wear effect. A bearing shell and a measuring shell are situated between at least one of the bearing blocks and the fifth wheel coupling plate, the mounting region being formed from the measuring shell.