Wheel for railway vehicle
AssigneeNippon Steel Corporation
InventorsTakanori Kato, Yoshinari Yamamura, Shingo Abe, Jun Noguchi, Ruben De La Prida Caballero
Life of this patent
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Abstract
A wheel includes a boss, a rim, and a web. The rim includes a tread and a flange. The web connects the boss and the rim. When the wheel is viewed in its longitudinal section, the web has a linear plate-thickness center line that is inclined such that the plate-thickness center line approaches the flange side as it extends outward in a radial direction. When the wheel is viewed in its longitudinal section, an outer end of the plate-thickness center line is positioned between the flange and a center of the tread in an axial direction of the wheel.
Claims7
A wheel to be used in a railway vehicle, the wheel comprising:
- a boss that forms an inner circumferential portion of the wheel and into which an axle of the railway vehicle is to be inserted;
- a rim that forms an outer circumferential portion of the wheel and includes a tread to come into contact with a top surface of a rail on which the railway vehicle travels and a flange protruding outward from the tread in a radial direction of the wheel, wherein the rim is positioned so as to be outward from the boss in a track-width direction;
- and
- a web that has an annular shape and connects the boss and the rim, wherein
- when the wheel is viewed in a longitudinal section,
- the web has a plate-thickness center line having a linear shape and two ends, the plate-thickness center line being inclined such that the plate-thickness center line approaches a flange side as the plate-thickness center line extends outward in the radial direction, and
- of the two ends of the plate-thickness center line, an outer end that is positioned more outward in the radial direction is positioned between the flange and a center of the tread in an axial direction of the wheel.
Dependencies are inferred from the claim text.