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Title:
LIQUID SEAL ANTI-VIBRATION DEVICE AND MANUFACTURING METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2011/111354
Kind Code:
A1
Abstract:
The disclosed liquid seal anti-vibration device is provided with: an inner tube (1) and outer tube (2); rubber bodies (3, 4) connecting said inner and outer tubes (1, 2) in a liquid-tight manner at two positions separated in the axis direction; a partition wall (5) which, disposed between the two rubber bodies (3, 4), divides into two parts in the axis direction the space between the inner and outer tubes and which comprises an annular rigid member (5a) and an elastic member (5b); liquid chambers (8, 9) formed by sealing a noncompressible fluid in each of the spaces formed by the partition wall (5); and a restricted passage (7) allowing communication between the two liquid chambers (8, 9) formed by the partition wall (5). The aforementioned partition wall (5) is configured from the annular rigid member (5a), which protrudes from the inner tube (1) towards the outer tube side, and from the elastic member (5b), which connects said annular rigid member (5a) to the outer tube (2). The aforementioned restricted passage (7) is configured from one or multiple passage grooves (5c), which, formed on the outer peripheral surface of the annular rigid member (5a), extend at least one time around the circumference thereof, and from a bounding rigid tube member (6) which, attached to the aforementioned elastic member (5b), seals the openings of the passage grooves (5c) via a seal member (5d) in a liquid-tight manner.

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Inventors:
SAITO AKIHIRO (JP)
SOMEYA KATSUMI (JP)
Application Number:
PCT/JP2011/001298
Publication Date:
September 15, 2011
Filing Date:
March 04, 2011
Export Citation:
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Assignee:
BRIDGESTONE CORP (JP)
SAITO AKIHIRO (JP)
SOMEYA KATSUMI (JP)
International Classes:
F16F13/14
Foreign References:
JPH10141425A1998-05-29
JP2010048282A2010-03-04
JP2006046555A2006-02-16
JP2003533654A2003-11-11
JP2007527488A2007-09-27
Attorney, Agent or Firm:
SUGIMURA, KENJI (JP)
Kenji Sugimura (JP)
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Claims:



 
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