TWO-LINK ROAD TRAIN Russian patent published in 2014 - IPC B62D53/00 

FIELD: transport.

SUBSTANCE: proposed road train consists of trailer with pole provided with coupler to interact with traction hook arranged at tractor frame. Tractor frame supports hydraulic cylinder secured in lengthwise mirror plane. Barrel is fitted on hydraulic cylinder and arranged to displace in guide support secured at the frame. Said barrel accommodates spring-loaded traction hook interacting with trailer coupling pole. Said barrel is provided with expansion spring secured at tractor frame. Hydraulic cylinder above-piston chamber is communicated via pipeline with hydraulic system of control over steering wheels of said tractor.

EFFECT: higher stability of towed link.

2 dwg