Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
ANTI-VIBRATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/093367
Kind Code:
A1
Abstract:
An anti-vibration device in which: elastic bodies (31, 32) comprise center elastic bodies (32) arranged separately on both sides in the radial direction sandwiching an inner attachment member (11); a covering member (17) is arranged between the inner attachment member and an outer cylinder (12), the covering member (17) covering, from the outer side in the radial direction, the space between the center elastic bodies, which are adjacent in the circumferential direction, and demarcating from the inner attachment member two liquid chambers (14a, 14b); an orifice passage is formed between the covering member and the outer cylinder, the orifice passage communicating between the two liquid chambers; the two liquid chambers are filled with a liquid having a dynamic viscosity of 50 cSt or more at 40°C; and shunting through-holes (21, 22, 23, 24) are formed in the wall surface of the orifice passage.

Inventors:
KOJIMA Hiroshi (1-1 Kyobashi 3-chome, Chuo-k, Tokyo 40, 〒1048340, JP)
Application Number:
JP2018/041323
Publication Date:
May 16, 2019
Filing Date:
November 07, 2018
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
BRIDGESTONE CORPORATION (1-1 Kyobashi 3-chome, Chuo-ku Tokyo, 40, 〒1048340, JP)
International Classes:
F16F13/14
Foreign References:
JP2016080056A2016-05-16
JPH08193639A1996-07-30
JPH0454342A1992-02-21
JPH04203631A1992-07-24
JP2008151215A2008-07-03
JP2002227913A2002-08-14
JP2008190653A2008-08-21
Attorney, Agent or Firm:
TANAI Sumio et al. (1-9-2, Marunouchi Chiyoda-k, Tokyo 20, 〒1006620, JP)
Download PDF: