The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 11, 2022
Filed:
Dec. 06, 2016
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
East Japan Railway Company, Tokyo, JP;
Nobuo Shiraishi, Tokyo, JP;
Yusuke Wakabayashi, Tokyo, JP;
Takeshi Kurita, Tokyo, JP;
Takanori Kato, Tokyo, JP;
Takahiro Fujimoto, Tokyo, JP;
Hiroshi Nogami, Tokyo, JP;
Atsushi Sakaguchi, Tokyo, JP;
Yuki Ichikawa, Tokyo, JP;
NIPPON STEEL CORPORATION, Tokyo, JP;
Abstract
A brake disc for a railway vehicle includes: a disc plate portion that has a sliding portion of a front face; a plurality of radial fins that are provided on the rear face of a disc plate portion, and that have a shape that extends in the radial direction of the disc plate portion; and a circumferential rib that is provided between each pair of adjacent radial fins, and that has a shape that extends in the circumferential direction of the disc plate portion. A flow path for air is formed between the pair of radial fins, and the flow path for air is narrowed by the circumferential rib. On the circumferential rib, a gradual slope for suppressing fluctuations in an airflow that passes between the pair of radial fins is provided from a base part to a top part.