Brake Disc For Railroad Vehicle

Abstract: This brake disc (100) comprises an annular disc body (10) and fins (20). The fins (20) are arranged radially on the back surface (12) of the disc body (10). At least some of the fins (20) have a bolt-hole (22) at the center portion in the radial direction of the disc body (10). The disc body (10) includes an inner circumferential part (15). The inner circumferential part (15) is disposed at the inner side in the radial direction as compared to the bolt-holes (22). The thickness of the inner circumferential part (15) decreases toward the inner side in the radial direction. Each of the fins (20) includes a top surface (21) and a protrusion part (25). The protrusion part (25) protrudes toward the inner side in the radial direction as compared to a virtual plane (S1). The virtual plane (S1) passes through an end (212) of the top surface (21) and an inner circumferential edge (123) of the back surface (12).

Patent Information

Application #

Filing Date

20 October 2023

Publication Number

36/2024

Publication Type

INA

Invention Field

MECHANICAL ENGINEERING

Status

Email

Parent Application

Applicants

NIPPON STEEL CORPORATION

6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

Inventors

1. NOGAMI, Hiroshi

c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

2. KATO, Takanori

c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

3. TAMURA, Kenji

c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

4. MIYABE, Naruo

c/o NIPPON STEEL CORPORATION, 6-1, Marunouchi 2-chome, Chiyoda-ku, Tokyo 1008071

5. KANAMORI, Seiji

c/o CENTRAL JAPAN RAILWAY COMPANY, 1-4, Meieki 1-chome, Nakamura-ku, Nagoya-shi, Aichi 4506101

6. KITAZAWA, Yuzuka

c/o CENTRAL JAPAN RAILWAY COMPANY, 1-4, Meieki 1-chome, Nakamura-ku, Nagoya-shi, Aichi 4506101

7. KAMIYA, Masahiro

c/o CENTRAL JAPAN RAILWAY COMPANY, 1-4, Meieki 1-chome, Nakamura-ku, Nagoya-shi, Aichi 4506101

Specification

Documents

Application Documents

#	Name	Date
1	202317071651-STATEMENT OF UNDERTAKING (FORM 3) [20-10-2023(online)].pdf	2023-10-20
2	202317071651-REQUEST FOR EXAMINATION (FORM-18) [20-10-2023(online)].pdf	2023-10-20
3	202317071651-PROOF OF RIGHT [20-10-2023(online)].pdf	2023-10-20
4	202317071651-POWER OF AUTHORITY [20-10-2023(online)].pdf	2023-10-20
5	202317071651-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [20-10-2023(online)].pdf	2023-10-20
6	202317071651-FORM 18 [20-10-2023(online)].pdf	2023-10-20
7	202317071651-FORM 1 [20-10-2023(online)].pdf	2023-10-20
8	202317071651-FIGURE OF ABSTRACT [20-10-2023(online)].pdf	2023-10-20
9	202317071651-DRAWINGS [20-10-2023(online)].pdf	2023-10-20
10	202317071651-DECLARATION OF INVENTORSHIP (FORM 5) [20-10-2023(online)].pdf	2023-10-20
11	202317071651-COMPLETE SPECIFICATION [20-10-2023(online)].pdf	2023-10-20
12	202317071651-FORM 3 [10-04-2024(online)].pdf	2024-04-10