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Title:
VIBRATION ISOLATING DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/131043
Kind Code:
A1
Abstract:
The present invention relates to a liquid filled type vibration isolating device (10) which is provided with a dividing member (16) dividing a liquid chamber (19) inside a first attachment member (11) filled with a liquid into a first liquid chamber (14) and a second liquid chamber (15), and in which a restricted passage (24) allowing the first liquid chamber and the second liquid chamber to communicate with one another is formed in the dividing member, wherein: the restricted passage is provided with a first communicating portion (26) opening into the first liquid chamber, a second communicating portion opening into the second liquid chamber, and a main flow passage (25) which allows the first communicating portion and the second communicating portion to communicate with one another; at least one of the first communicating portion and the second communicating portion is provided with a plurality of pores (26a) penetrating through a first separating wall (38) facing the first liquid chamber or the second liquid chamber; and at least one pore from among the plurality of pores has a pore flow passage length that is at least equal to three times the minimum value of the inner diameter of the pore.

Inventors:
UEKI Akira (1-1 Kyobashi 3-chome, Chuo-k, Tokyo 40, 〒1048340, JP)
SATAKE Yuki (1-1 Kyobashi 3-chome, Chuo-k, Tokyo 40, 〒1048340, JP)
BABA Yuta (1-1 Kyobashi 3-chome, Chuo-k, Tokyo 40, 〒1048340, JP)
Application Number:
JP2018/044920
Publication Date:
July 04, 2019
Filing Date:
December 06, 2018
Export Citation:
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Assignee:
BRIDGESTONE CORPORATION (1-1 Kyobashi 3-chome, Chuo-ku Tokyo, 40, 〒1048340, JP)
International Classes:
F16F13/10
Domestic Patent References:
WO2016027606A12016-02-25
WO2018198444A12018-11-01
Foreign References:
JPS63280943A1988-11-17
JPH01224544A1989-09-07
JP2012026510A2012-02-09
Attorney, Agent or Firm:
TANAI Sumio et al. (1-9-2, Marunouchi Chiyoda-k, Tokyo 20, 〒1006620, JP)
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