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Title:
VIBRATION CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2019218966
Kind Code:
A
Abstract:
To provide a vibration control device capable of curbing a reduction in attenuation characteristics.SOLUTION: A vibration control device 10 comprises: a cylinder body 12 which is connected to either one of a vibration generation section or a vibration receiving section; a support body 16 which is connected to the other of the vibration generation section or the vibration receiving section; an elastic body 14 which fits the support body 16 with the cylinder body 12; a main liquid chamber 33 storing liquid; a sub-liquid chamber 50 which is installed between a diaphragm 46 separating an interior space of the cylinder body and an orifice forming member 32 and allows the liquid to flow between the main liquid chamber 33 and the sub-liquid chamber through an orifice passage 54; a first gas chamber 62 which is positioned opposite to the sub-liquid chamber 50 through the diaphragm 44; a second gas chamber 70 which is isolated from the first gas chamber 62; a solenoid valve 72 (switching section) which is arranged inside the second gas chamber 70 and opens or closes the communication between the first gas chamber 62 and the second gas chamber 70 through electric control; and a cover 64 which forms a portion of a bulkhead of the second gas chamber 70, is made of an elastic body and undergoes elastic deformation according to fluctuation in pressure in the second gas chamber 70.SELECTED DRAWING: Figure 1

Inventors:
KOJIMA HIROSHI
MAENO KAZUHIRO
TAKASHIMA SHINKICHI
YOSHIDA TAKETO
Application Number:
JP2018114753A
Publication Date:
December 26, 2019
Filing Date:
June 15, 2018
Export Citation:
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Assignee:
BRIDGESTONE CORP
SUBARU CORP
International Classes:
F16F13/26; F16F13/10; F16F13/20
Domestic Patent References:
JP2017040364A2017-02-23
JP2010255819A2010-11-11
JPH0874923A1996-03-19
Attorney, Agent or Firm:
Atsushi Nakajima
Kato Kazunori
Hiroshi Fukuda