VIBRATION-DAMPING DEVICE - BRIDGESTONE CORP

Title:

VIBRATION-DAMPING DEVICE

Document Type and Number:

WIPO Patent Application WO/2016/027598

Kind Code:

A1

Abstract:

This vibration-damping device is equipped with: a first attachment member (11) and a second attachment member (12); an elastic body (13) linking these two attachment members; a partition member (15) that partitions a liquid chamber (16) inside the first attachment member (11) into a primary liquid chamber (16a), a portion of the wall surface of which is formed by the elastic body (13), and an auxiliary liquid chamber (16b); and a movable member (23) housed within a housing chamber (20) provided in the partition member (15), with this movable member being housed so as to be capable of deforming or being displaced in the axial direction of the first attachment member (11). The partition member (15) is provided with a plurality of connecting holes (22) that extend inward in the axial direction from the portion in the partition member (15) exposed to the primary liquid chamber (16a) or the auxiliary liquid chamber (16b), and that open toward the movable member (23). The partition member (15) also is provided with dividing plate parts (18, 19), the front and back surfaces of which are oriented in the axial direction, and which divide the housing chamber (20) and the primary liquid chamber (16a) or the auxiliary chamber (16b) in the axial direction, and have a convex shape in the axial direction. The connecting holes (22) penetrate the dividing plate parts (18, 19) in the axial direction.

Inventors:

NAGASAWA MASAKAZU (JP)
UEKI AKIRA (JP)
ONO SHUHEI (JP)
NAGASHIMA YASUYUKI (JP)

Application Number:

PCT/JP2015/070426

Publication Date:

February 25, 2016

Filing Date:

July 16, 2015

Export Citation:

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Assignee:

BRIDGESTONE CORP (JP)

International Classes:

F16F13/10

Foreign References:

JP2013210093A	2013-10-10
US4915365A	1990-04-10
JPS6024957U	1985-02-20
JPS612938A	1986-01-08

Other References: