TWO-AXLE TRAILER Russian patent published in 2006 - IPC B62D63/06 

FIELD: transport engineering; railless vehicles, trailers.

SUBSTANCE: proposed two-axle trailer has frame with rigidly connected upper race of slewing circle engaging through solids of revolution with lower race rigidly installed on frame of run-under bogie, and pneumatic brake system consisting of supply main line connected to brake control devices by pipelines. Pneumatic cylinder is installed on inner surface of upper race of slewing circle from left side in direction of trailer running. Overpiston space of said articulated pneumatic cylinder is connected by pipeline with supply main line of pneumatic brake system, and under-piston space communicates with atmosphere. Compression spring enclosing the rod is arranged in underpiston space. Rod is hinge-connected to one of arms of bell-crank also hinge-mounted on trailer frame, other arm of bell-crank being provided with toothed sector engaging with teeth on inner surface of slewing circle lower race on case of drop of compressed air pressure. Said toothed sector can have curvilinear surface with variable radius of curvature.

EFFECT: improved safety.

2 cl, 3 dwg