Title:
DRUM BRAKE DEVICE
Document Type and Number:
WIPO Patent Application WO/2013/031909
Kind Code:
A1
Abstract:
A first expansion lever (33) and a second expansion lever (34) are supported so that the first expansion lever (33) and the second expansion lever (34) can be displaced in a pivoting manner about a pivot shaft (31). The front end of the first expansion lever (33) is engaged with the web (7a) of a brake shoe (4a) so that the front end can press outward radially the web (7a). The front end of the second expansion lever (34) is engaged with the base end of a strut (32) so that the front end can press outward radially the strut (32). The first expansion lever (33) and the second expansion lever (34) are displaced in a pivoting manner in opposite directions by a transmission mechanism (56) which forms a drive device (27a).
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Inventors:
MAEHARA TOSHIFUMI
ISHIKAWA HIROYASU
ISHIKAWA HIROYASU
Application Number:
PCT/JP2012/072046
Publication Date:
March 07, 2013
Filing Date:
August 30, 2012
Export Citation:
Assignee:
AKEBONO BRAKE IND (JP)
MAEHARA TOSHIFUMI
ISHIKAWA HIROYASU
MAEHARA TOSHIFUMI
ISHIKAWA HIROYASU
International Classes:
F16D65/22; F16D51/22; F16D65/14
Foreign References:
| JP2011099458A | 2011-05-19 | |||
| JPS54111276U | 1979-08-04 | |||
| JP2009041733A | 2009-02-26 | |||
| JP2010120601A | 2010-06-03 | |||
| JPH09177841A | 1997-07-11 |
Attorney, Agent or Firm:
HAMADA Yuriko et al. (JP)
Yuriko Hamada (JP)
Yuriko Hamada (JP)
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Claims: