MULTI-LOADING ROAD TRAIN Russian patent published in 2018 - IPC B62D53/04 

FIELD: transport machinery.

SUBSTANCE: invention relates to trackless vehicles. Heavy-duty truck consists of a tractor-trailer and a semi-trailer containing a frame with a ledge rigidly attached to a supporting sheet with a pivot, hingedly connected to the saddle of the trailer coupling of the tractor vehicle. In the supporting sheet of the ledge in its longitudinal plane and the axis of symmetry, a through groove is formed with a pivot movably disposed therein, spring-loaded with respect to it by helical compression coil springs. Body of the hydraulic cylinder is fixed on the ledge of the frame, and its rod is pivotally attached to the pivot. Hydraulic cylinder is connected by pipelines to the hydraulic distributor, rigidly fixed on the frame of the tractor vehicle, and its spool is connected with the teeth of the response, made on the pivot. Hydraulic distributor is connected to a hydraulic station located on a towing vehicle.

EFFECT: increase in the reliability of the running gear of tractors is achieved.

1 cl, 3 dwg