| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a steering truck for a railway vehicle capable of attaining reduction of lateral pressure during passing through a curve of the truck by assisting steering force by an actuator without active-controlling the actuator. Ž<P>SOLUTION: The actuator 15 is provided between a truck frame 2 and a steering beam 5, and is provided with an expandable/contactable hydraulic actuator body 18 connected to the truck frame 2 and the steering beam 5; an oil feeding means 19 for assisting expansion/contraction of the actuator body 18 by an oil pressure by feeding an operation oil to the actuator body 18 when the actuator body 18 is expanded/contracted by turning the truck frame 2 relative to the steering beam 5. Therefore, since swinging (turning) of the truck frame 2 is assisted by the actuator 15 and the truck frame 2 is quickly swung (turned) by relatively light force, rotation resistance of the truck (truck frame) 1 is reduced. As a result, the lateral pressure during passing through the curve can be reduced. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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