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Title:
VIBRATION-DAMPING DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/027604
Kind Code:
A1
Abstract:
This vibration-damping device is equipped with: a partition member (15) that partitions a liquid chamber (16) inside a first attachment member (11) into a primary liquid chamber (16a), a portion of the wall surface of which is formed by an 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. Fine connecting holes (24) that penetrate the dividing plate parts (18, 19) in the axial direction and have a minimum inner diameter of no greater than 3.6 mm are provided as the connecting holes (22).

Inventors:
NAGASAWA MASAKAZU (JP)
UEKI AKIRA (JP)
ONO SHUHEI (JP)
NAGASHIMA YASUYUKI (JP)
Application Number:
PCT/JP2015/070644
Publication Date:
February 25, 2016
Filing Date:
July 21, 2015
Export Citation:
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Assignee:
BRIDGESTONE CORP (JP)
International Classes:
F16F13/10
Foreign References:
JP2009002478A2009-01-08
JP2006017134A2006-01-19
JP2008291869A2008-12-04
Other References:
See also references of EP 3184852A4
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
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