Title:
ATTACHMENT STRUCTURE FOR BRAKE DISC FOR RAILROAD CAR, AND BRAKE DISC UNIT USING SAME
Document Type and Number:
WIPO Patent Application WO/2020/071347
Kind Code:
A1
Abstract:
A brake disc for a railroad car fastened to an attached member with a fastening member, wherein fatigue strength of the fastening member is improved. An attachment structure (30) fastens an annular brake disc (10) to an attached member (20), which is a wheel of a railroad car or a disc body. The attachment structure (30) comprises a fastening member (301) and an elastic member (302). The elastic member (302) is disposed between a nut (3011) of the fastening member (301), and the brake disc (10). The elastic member (302) has a cylindrical member body (3024) and a flange (3025). The flange (3025) is connected to the end part on the nut (3011) side, among the two end parts of the member body (3024). The flange (3025) projects outward from the member body (3024) and contacts the outer peripheral part of the nut (3011).
Inventors:
KATO TAKANORI (JP)
SAKAGUCHI ATSUSHI (JP)
MIYABE NARUO (JP)
SAKAGUCHI ATSUSHI (JP)
MIYABE NARUO (JP)
Application Number:
PCT/JP2019/038695
Publication Date:
April 09, 2020
Filing Date:
October 01, 2019
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
F16D65/12; B61H5/00; F16B5/02; F16B43/00
Foreign References:
| JP2007218413A | 2007-08-30 | |||
| JPS52117762U | 1977-09-07 | |||
| JP2014190344A | 2014-10-06 | |||
| JPH0968213A | 1997-03-11 | |||
| US20140248146A1 | 2014-09-04 |
Attorney, Agent or Firm:
ASCEND IP LAW FIRM (JP)
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