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Title:
BRAKE CHAMBER, BOOT MEMBER, AND BUSH MEMBER
Document Type and Number:
WIPO Patent Application WO/2012/141341
Kind Code:
A3
Abstract:
A brake chamber provided with a configuration connecting a housing, which forms an accommodation space for a push plate, and a cylinder, in which a push rod is accommodated. In order to prevent problems caused by the intrusion of extraneous matter into the housing resulting in insufficient strength at the position where the housing and the cylinder are connected, while inhibiting an increase in costs, a brake chamber (1) is provided with: a rod portion (22) in which a push rod (2) is made to advance towards a brake device by a piston action in a cylinder (17) by means of compressed air pressure; and a dust boot (29) which prevents the intrusion of extraneous matter such as mud into the cylinder (17). A seal portion (29c) is formed on the dust boot (29) and acts to prevent the intrusion of extraneous matter to the connection portion of a cap (16) and the cylinder (17) by being in elastic contact with the inner peripheral surface (16b) of the cap (16).

Inventors:
SHIMOMURA, Takeo (JA Kyosai Bldg., 7-9, Hirakawacho 2-chome, Chiyoda-ku Tokyo 93, 〒1020093, JP)
下村 丈夫 (〒93 東京都千代田区平河町2丁目7番9号 JA共済ビル ナブテスコオートモーティブ株式会社内 Tokyo, 〒1020093, JP)
Application Number:
JP2012/060801
Publication Date:
December 06, 2012
Filing Date:
April 16, 2012
Export Citation:
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Assignee:
Nabtesco Automotive Corporation (JA Kyosai Bldg, 7-9 Hirakawacho 2-chome Chiyoda-ku, Tokyo 93, 〒1020093, JP)
ナブテスコオートモーティブ株式会社 (〒93 東京都千代田区平河町2丁目7番9号 JA共済ビル Tokyo, 〒1020093, JP)
SHIMOMURA, Takeo (JA Kyosai Bldg., 7-9, Hirakawacho 2-chome, Chiyoda-ku Tokyo 93, 〒1020093, JP)
International Classes:
B60T13/38; F16J3/04; F16J15/52
Foreign References:
JPS473924B
JPH07190202A1995-07-28
JP2005133945A2005-05-26
JP2005030555A2005-02-03
JP2006123873A2006-05-18
Other References:
See also references of EP 2698297A4
Download PDF:
Claims:



 
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