FIELD: machine building.
SUBSTANCE: invention relates to the field of rail vehicles, in particular, to devices for installation of trolleys at movement along curvilinear sections of railways. Car frame rests on two running trolleys. Under the middle part of the frame there installed is an additional control wheel pair with possibility of transverse movement relative to the frame. Wheel pair is kinematically connected with trolley rotary structure. Gear ratio of steering wheel pair to every truck depends on direction of car movement.
EFFECT: reduced wear of wheel-rail system.
1 cl, 2 dwg
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