LIQUID-SEALED VIBRATION-ISOLATING DEVICE

Title:

LIQUID-SEALED VIBRATION-ISOLATING DEVICE

Document Type and Number:

WIPO Patent Application WO/2006/061874

Kind Code:

A1

Abstract:

A liquid-sealed vibration-isolating device, comprising a main orifice part, a first auxiliary orifice part (6), and a second auxiliary orifice part (46). A first rubber valve (18A) is vulcanized/molded in the first orifice groove (30) of a first orifice groove formation part, and a second rubber valve (18B) is vulcanized/molded in the second orifice groove (31) of a second orifice groove formation part. When fluid pressures in a first fluid chamber (4A) and a second fluid chamber (4B) are less than a set value, the first rubber valve (18A) and the second rubber valve (18B) are kept in a closed state, and when the fluid pressures are increased to the set value, the first rubber valve (18A) or the second rubber valve (18B) is opened. Swelled parts (17A) and (17B) of circular arc shape in cross section are formed at the top parts of the first rubber valve (18A) and the second rubber valve (18B). The swelled part (17A) of the first rubber valve (18A) is swelled from the membrane face of the first rubber valve on the upstream side of the first orifice groove (30) to the outside of the membrane face, and the swelled part (17B) of the second rubber valve (18B) is swelled from the membrane face of the second rubber valve on the upstream side of the second orifice groove (31) to the outside of the membrane face.

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Inventors:

KATO AKIHIKO (JP)
TOI MASAYUKI (JP)

Application Number:

PCT/JP2004/018133

Publication Date:

June 15, 2006

Filing Date:

December 06, 2004

Export Citation:

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Assignee:

TOYO TIRE & RUBBER CO (JP)
KATO AKIHIKO (JP)
TOI MASAYUKI (JP)

International Classes:

F16F13/14

Domestic Patent References:

WO2003033936A1

2003-04-24

Foreign References:

JPS348017Y1	1959-05-27
JPS4518Y1	1970-01-06
JPH0742460U	1995-08-04
JPS4720288B1	1972-06-09
JPS59175757U	1984-11-24

Attorney, Agent or Firm:

Muronozono, Kazuto (6-14 Higashinakajima 1-chome, Higashiyodogawa-ku, Osaka-sh, Osaka 33, JP)

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