Force-sensing fifth wheel

The present invention relates to a measurement device for measuring loads between a number of load-carrying units and a load-receiving unit of a truck. The invention relates to measuring not only loads in a downward orientated direction, but also measuring loads in obliquely orientated directions in relation to the downward orientated direction. The oblique directions measured are preferably a first direction and a second direction, both being perpendicular to the downward orientated direction and preferably being mutually perpendicular. By also measuring loads in these perpendicular directions, a more precise and reliable measurement is obtained of the load between the number of load-carrying units and the load-receiving unit, because also loads other than in the downward orientated direction are measured and taken into consideration. The invention is especially applicable for measuring loads in connection with truck and optionally trailers of the trucks not having a self-supporting chassis frame, the so-called semi-trailers or trucks having a semi-selfsupporing chassis frame.