FREIGHT CAR Russian patent published in 2009 - IPC B62D33/02 B61H1/00 B61H13/02 B60T13/26 

FIELD: transport.

SUBSTANCE: freight car includes a body mounted on bogies interconnected with wheelset axle-boxes and an air brake system comprising a brake pipe, angle cock, air distributor, stand-by tank and air cylinder. The air cylinder interacts through the linkage with brake blocks mounted on hangers. The brake hangers are made in the form of double-arm levers hinged on the bogie. Some arms of the double-arm levers hold the brake block and the other arms are free to move in link slots rigidly fixed on spring-loaded rods of an auxiliary double-acting air cylinder connected by a pipeline with the stand-by tank. The auxiliary double-acting air cylinder body has an opening, where a wire rod is moving, which is connected to the angle cock control handle on one end and fitted with stop on the other end, this stop comes into contact with end faces of pistons of the aforesaid auxiliary air cylinder, when the brake is exhausted.

EFFECT: elimination of possible self-movement of single freight cars and trains, when the brake is exhausted and there are no brake shoes under the wheels.

4 dwg