LIQUID-SEALED VIBRATION CONTROL EQUIPMENT

Title:

LIQUID-SEALED VIBRATION CONTROL EQUIPMENT

Document Type and Number:

WIPO Patent Application WO/2010/035365

Kind Code:

A1

Abstract:

A partition body (40) for partitioning two liquid chambers (36A, 36B) consists of an orifice formation member (44), an elastic wall (46) closing the gap between the inner circumferential surface (44A) of the formation member and the wall, and a pair of partition plates (48, 50) clamping the elastic wall in the central axis direction (X) thereof. The pair of partition plates are provided with a clamp portion (60) for clamping the elastic wall (46) on the radial outer (Ko) side of a coupling portion (56). The clamp portion consists of a first clamp portion (64) on the radial outer side and a second clamp portion (66) on the radial inner side, and the first clamp portion (64) is provided with a high-compression clamp portion (68) having a higher compression rate than the second clamp portion (66). Consequently, strange noise is reduced while both the attenuation performance in low frequency regions and the low-action spring performance in high frequency regions are satisfied without lowering the assembling capability of the partition body.

Inventors:

OGASAWARA DAI (JP)
HATAKEYAMA SHINGO (JP)

Application Number:

PCT/JP2009/001004

Publication Date:

April 01, 2010

Filing Date:

March 05, 2009

Export Citation:

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Assignee:

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

International Classes:

F16F13/10; F16F13/14

Foreign References:

JP2007162952A	2007-06-28
JP2007211972A	2007-08-23
JP2007271004A	2007-10-18
JP2007154904A	2007-06-21
JP2006342834A	2006-12-21
JP2006207672A	2006-08-10
JP2007211971A	2007-08-23

Other References: