LIQUID-SEALED VIBRATION ISOLATION DEVICE

WIPO Patent Application WO/2007/080705

A1

A liquid-sealed vibration isolation device that suppresses noise without a reduction in vibration isolation characteristics. The liquid-sealed vibration isolation device has a first installation member (1), a second installation member (2), a vibration isolation base body (3), a diaphragm (9), a partition body (12), and an orifice (25). The partition body (12) is constructed from an orifice forming member (16) having an annular shape and provided inside the installation member (2), a rubber wall (15) adhered by vulcanization to an inner peripheral surface (16N) of the orifice forming member (16) and closing between inner peripheral surfaces, and a pair of partition plates (17, 18) for holding the rubber wall in between them in the axis direction (G). One partition plate (18) forms a part of the chamber wall of a first liquid chamber (11A), and the other partition plate (17) forms a part of the chamber wall of a second liquid chamber (11B). The amount of displacement of the pair of the partition plates (17, 18) in the axis direction (G) of the orifice forming member (16) is limited by the rubber wall (15).

HATAKEYAMA SHINGO (JP)
OGASAWARA DAI (JP)
SUZUKI MAKOTO (JP)

PCT/JP2006/322962

July 19, 2007

November 17, 2006

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TOYO TIRE & RUBBER CO (JP)
HATAKEYAMA SHINGO (JP)
OGASAWARA DAI (JP)
SUZUKI MAKOTO (JP)

F16F13/18; F16F13/06; F16F13/10

JP2002310224A	2002-10-23
JP2001027278A	2001-01-30
GB2332498A	1999-06-23
JPS60136638A	1985-07-20
JPS6199745U	1986-06-26
JP2006002868A	2006-01-05
JP2006207672A	2006-08-10

TSUTADA, Akiko et al. (Nissei Bingomachi Bldg. 7-10, Bingomachi 1-chome, Chuo-k, Osaka-shi Osaka 51, JP)

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