Title:
VIBRATION-DAMPING DEVICE
Document Type and Number:
WIPO Patent Application WO/2016/175273
Kind Code:
A1
Abstract:
A vibration-damping device (1) is provided with a partition member (40) and a diaphragm (50), which are mounted to an insulator (30). The partition member (40) is provided with a lower holder (41) which is mounted to the insulator (30) and an elastic diaphragm member (43) which is mounted to the lower holder (41). A first orifice passage (45) is formed in the lower holder (41), and a second orifice passage (46) is formed in the gap between the elastic diaphragm member (43) and the displacement prevention section (41g) of the lower holder (41). When the amplitude of vibration is greater than a predetermined amplitude, the gap between the elastic diaphragm member (43) and the displacement prevention section (41g) is closed by the elastic diaphragm member (43). As a result of this configuration, vibration in different frequency regions can be damped by the two types of the orifice passages (45, 46) without increasing the number of parts.
Inventors:
MURAO HIROSHI (JP)
IIZUKA HIROMI (JP)
IIZUKA HIROMI (JP)
Application Number:
PCT/JP2016/063321
Publication Date:
November 03, 2016
Filing Date:
April 28, 2016
Export Citation:
Assignee:
YAMASHITA RUBBER KK (JP)
International Classes:
F16F13/10
Domestic Patent References:
| WO2012160805A1 | 2012-11-29 | |||
| WO2013161992A1 | 2013-10-31 |
Foreign References:
| JP5184272B2 | 2013-04-17 | |||
| JP2008256035A | 2008-10-23 |
Attorney, Agent or Firm:
ISONO INTERNATIONAL PATENT OFFICE, P. C. (JP)
Patent business corporation Isono international patent trademark office (JP)
Patent business corporation Isono international patent trademark office (JP)
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