ROAD TRAIN BOLSTER

摘要

FIELD: transport.SUBSTANCE: invention relates to wheeled vehicles. Road train bolster comprises ball head moving in hemispherical head arranged at trailer hitch. Trailer hitch hemispherical head consists of two parts one being rigidly secured at the hitch and another one sliding at crosswise guides and being spring-loaded by helical contraction spring. Hemispherical head sliding part is rigidly jointed with link arranged with clearance in the bore made in its first part and connected with bell crank retained relative to aforesaid hitch.EFFECT: higher reliability of linkage.2 dwg