MUMBAI, India, Aug. 17 -- Intellectual Property India has published a patent application (202617084320 A) filed by Nippon Steel Corporation; East Japan Railway Company; and Fine Sinter Co. , Ltd. on July 09, 2026, for Disk Brake Device For Railway Vehicle.
Inventors include Shiotani, Yuiko; Kato, Takanori; Ichikawa, Yuki; Kitamura, Kenichi; Yoshikawa, Kazuhiro; Fujita, Shinpei; Nakano, Takeshi; Nishikawa, Makoto; Tomita, Kaname; and Shimazoe, Isao.
The application for the patent was published on August 14, 2026, under issue no. 33/2026.
Abstract: Provided is a disc brake device for a railway vehicle capable of suppressing warpage of a brake disc. A disc brake device (1) is provided with a brake disc (2) and a brake lining (4). The brake disc (2) is fastened to s wheel by a plurality of bolts (6) inserted into a plurality of bolt holes (21). The brake lining (4) includes a plurality of sliding member sets (41). Each of the sliding member sets (41) includes an inner circumferential sliding member (42i) and an outer circumferential sliding member (42o). When a projection area (PA) of the inner circumferential sliding member (42i) and the outer circumferential sliding member (42o) formed on a sliding surface (22) of the brake disc (2) is divided into inner circumferential projection areas (PAi) and outer circumferential projection areas (PAo) with a virtual circle (PC) passing through the center of each bolt hole (21) as a boundary, the area of the outer circumferential projection areas (PAo) is larger than the area of the inner circumferential projection areas (PAi).
Disclaimer: Curated by HT Syndication.
