ROAD TRAIN Russian patent published in 2009 - IPC B62D53/08 B62D13/04 

FIELD: transport.

SUBSTANCE: invention relates to trackless vehicles. Proposed road train consists of tractor truck and semitrailer coupled by bolster made up of weight-bearing swivel connection arranged on tractor truck frame and spindle pin rigidly attached to semitrailer frame shoulder bearing sheet. Weight-bearing swivel connection surface facing aforesaid bearing sheet hemispherical ledge with its shape mating that of recess arranged on disk mounted on aforesaid sheet to make angular turns therein. Bearing sheet one side accommodates spindle pin and another side accommodates gear wheel in mesh with toothed rack arranged on two-way hydraulic cylinder casing. Hydraulic cylinder rod ends are attached to frame shoulder. Note here that hydraulic cylinder chambers communicate, via pipelines with chambers of the other hydraulic cylinder with its rods also jointed to the frame. Second hydraulic cylinder casing is furnished with toothed rack in mesh with another gear wheel rigidly fitted on rotary mobile truck that support semitrailer rear wheels.

EFFECT: higher maneuverability and reduced resistance on curved route sections.

5 dwg