BOGIE FOR RAILWAY VEHICLE, RAILWAY VEHICLE AND RAILWAY SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a bogie for a railway vehicle which is improved in traveling stability and curve passing performance, the railway vehicle and a railway system.SOLUTION: An axle 6 is inclined so as to become high at the outside and low at the inside when viewed from a front face, and a wheel 7 which is rotatably supported by the axle 6 is composed of a cylindrical tread 7a and a flange 7b which continues to an outside end of the tread 7a. A contact angleθin a vertical plane is formed between the tread 7a and rails in a state that the cylindrical tread 7a of the wheel 7 contacts with the rails. A gravity return force is generated by the contact angleθtoward the outside, the steering moment in a direction in which a yaw angle is reduced is generated by the gravity return force, and traveling stability is secured.