Braking balance for vehicle moving on conveyor

An automatic brake clutch system for a vehicle supporting a load, guided on a track by a guiding rail and having a relative motion with track components parallel to said guiding rail, the loaded vehicle having a total weight constituted by a first weight and a second weight, and said system providing a braking force proportional to said total weight, whatever said load and its distribution in the vehicle comprising:

• a load carrying platform of the vehicle, bearing on an underframe having said second weight and provided with supporting and guiding means, by a center of articulation and by vertically elastic coupling means at corners with stiffnesses in inverse ratio to their distances from the center of articulation, said load and said load carrying platform having together said first weight;
• braking means located in said underframe, coming into contact at suitable places along the track with said track components in order to brake the relative motion between the vehicle and said track components where said brakign means come into contact thereto, with said braking force proportional to said total weight;
• a first braking assembly, whereon the center of articulation of said load carrying platform is bearing, adapted to transmit said first weight to said braking means;
• and
• a second braking assembly providing to said braking means an adjustable constant force proportional to said second weight.