AUTOMOBILE SEMI-TRAILER Russian patent published in 2019 - IPC B62D63/06 B62D53/00 

FIELD: transportation.

SUBSTANCE: invention relates to towing motor vehicles. Automobile semi-trailer contains frame, suspension and wheels, support device, brake and electrical equipment. Frame is made of beams of the front and spinal parts. Service brake drive is pneumo-hydraulic and is controlled from the tractor cab. Parking brake drive – combined, hydromechanical. Brake equipment of the operating brake is made using a two-wire connection to the tractor and is divided into two independent circuits. Support device includes a hydraulic and helical parts equipped with a bevel gearbox. Support device is equipped with a combined drive, which is made with the possibility of retracting and extending the legs, holding the semi-trailer in a horizontal position when parked without a tractor or coupling /uncoupling with the tractor. Combined drive includes a hydraulic drive, which is designed to work by means of a manual hydraulic pump and electrical equipment. Electrical equipment is made on a single-wire circuit and includes lighting lights, lamps and sockets for connecting a portable lamp and electrical wiring of the tractor.

EFFECT: improved reliability and improved maneuverability and controllability.

1 cl, 2 dwg