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:
Jul. 07, 2020
Filed:
Dec. 06, 2016
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Nobuo Shiraishi, Tokyo, JP;
Yusuke Wakabayashi, Tokyo, JP;
Takeshi Kurita, Tokyo, JP;
Takahiro Fujimoto, Tokyo, JP;
Hiroshi Nogami, Tokyo, JP;
Atsushi Sakaguchi, Tokyo, JP;
Takanori Kato, Tokyo, JP;
Yuki Ichikawa, Tokyo, JP;
NIPPON STEEL & SUMITOMO METAL CORPORATION, Tokyo, JP;
Abstract
A brake disc for a railway vehicle is provided in which noise arising from the brake disc during high-speed rotation of a wheel is reduced by a large margin. A brake disc for a railway vehicle includes: a disc plate portion that has a sliding portion on a front face thereof; a plurality of through-holes that pass from the front face to a rear face of the disc plate portion and are arranged in alignment in the circumferential direction of the disc plate portion, the through-holes allowing bolts to pass therethrough for fastening together the disc plate portion and a wheel of the railway vehicle; and a groove provided to link a plurality of through-holes on the front face side of the disc plate portion.