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Title:
PNEUMATIC DISC BRAKE DEVICE FOR RAILROAD VEHICLE
Document Type and Number:
WIPO Patent Application WO/2010/131699
Kind Code:
A1
Abstract:
A pneumatic disc brake device for a railroad vehicle, capable of, even with the use of a brake cylinder having the same diameter as the brake cylinders in conventional devices, generating a braking force which is two times the braking force exerted by the conventional devices. The pneumatic disc brake device for a railroad vehicle is provided with first and second brake levers (1, 2), a pair of braking elements (4) each mounted to one end of each lever through a braking element head (5) so as to face a brake disc, and a brake cylinder (6) disposed between the other end of each of the first and second brake levers. The brake cylinder (6) is composed of a first cylinder (6a) and a second cylinder (6b) which are arranged in series.

Inventors:
SATO Yoshi (5-33, Kitahama 4-chome, Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
Application Number:
JP2010/058088
Publication Date:
November 18, 2010
Filing Date:
May 13, 2010
Export Citation:
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Assignee:
SUMITOMO METAL INDUSTRIES, LTD. (5-33, Kitahama 4-chome Chuo-ku, Osaka-sh, Osaka 41, 〒5410041, JP)
住友金属工業株式会社 (〒41 大阪府大阪市中央区北浜4丁目5番33号 Osaka, 〒5410041, JP)
International Classes:
B61H5/00; F16D55/224; F16D65/18
Foreign References:
JPS4942382U1974-04-13
JP2008296756A2008-12-11
JPH0258129U1990-04-26
JPH0211759U1990-01-25
JP2008296756A2008-12-11
US5813499A1998-09-29
Other References:
See also references of EP 2431251A4
Attorney, Agent or Firm:
HIROSE Shoichi (Tozan Building, 4-2 Nihonbashi Honcho 4-chome, Chuo-k, Tokyo 23, 〒1030023, JP)
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Claims:



 
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