ROAD TRAIN DRAWBAR Russian patent published in 2010 - IPC B60D1/06 

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Road train comprises ball head consisting of two parts furnished with round ledge made on lower part and recess arranged on upper part. Said parts are coupled by connecting pin with retainer of its position. Ball head lower part circular ledge is furnished with a pair of grooves with through slots. Slots made on lengthwise axle of drawbar interact with a pair of ledges arranged in ball head top part recess. Ball head horizontal surface has semi-spherical recess interacting with ball stop arranged on similar surface of aforesaid ball head lower part.

EFFECT: higher reliability in operating conditions.

3 dwg