Brake Disc For Railroad Vehicle

Abstract: This brake disc (100) comprises a disc body (10) and fins (20). The thickness of the disc body (10) decreases toward the inside in the radial direction. The fins (20) are disposed in a radial formation on the reverse surface (12) of the disc body (10). At least part of each fin (20) has a bolt hole (22) in the radial-direction center thereof. The disc body (10) includes protrusions (13). The protrusions (13) are formed on the reverse surface (12) in portions positioned further outward in the radial direction than the bolt holes (22). Each of the fins (20) includes a top surface (21) and a convex part (25). The convex part (25) protrudes inward in the radial direction beyond an imaginary plane (S1). The imaginary plane (S1) passes through an end part (212) of the top surface (21) and an inner peripheral edge (122) of the reverse surface (12).

Patent Information

Application #

Filing Date

19 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	202317071512-STATEMENT OF UNDERTAKING (FORM 3) [19-10-2023(online)].pdf	2023-10-19
2	202317071512-PROOF OF RIGHT [19-10-2023(online)].pdf	2023-10-19
3	202317071512-POWER OF AUTHORITY [19-10-2023(online)].pdf	2023-10-19
4	202317071512-NOTIFICATION OF INT. APPLN. NO. & FILING DATE (PCT-RO-105-PCT Pamphlet) [19-10-2023(online)].pdf	2023-10-19
5	202317071512-FORM 18 [19-10-2023(online)].pdf	2023-10-19
6	202317071512-FORM 1 [19-10-2023(online)].pdf	2023-10-19
7	202317071512-FIGURE OF ABSTRACT [19-10-2023(online)].pdf	2023-10-19
8	202317071512-DRAWINGS [19-10-2023(online)].pdf	2023-10-19
9	202317071512-DECLARATION OF INVENTORSHIP (FORM 5) [19-10-2023(online)].pdf	2023-10-19
10	202317071512-COMPLETE SPECIFICATION [19-10-2023(online)].pdf	2023-10-19
11	202317071512-FORM 3 [10-04-2024(online)].pdf	2024-04-10