Title:
ANTI-VIBRATION DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/080338
Kind Code:
A1
Abstract:
Provided is an anti-vibration device (1) wherein: a main body groove (19), one liquid chamber from among a pair of liquid chambers (14a, 14b), a first communication opening (18) opened in the main body groove, the other liquid chamber from among the pair of liquid chambers, and a second communication opening (20) opened in the main body groove are formed on the outer peripheral surface of a covering member (17); the main body groove is provided with a first groove (19a) and a second groove (19b) disposed so as to extend in the circumferential direction at different positions from each other in the axial direction; the covering member is provided with an injection gate mark part (36) on a partitioning wall (19e) that is formed by injection molding and that, from among the walls defining the main body groove, extends in the circumferential direction and partitions the first groove and second groove in the axial direction; and the injection gate mark part is formed by a liquid pool recess (36a) and a connection groove (36b) that extends in the axial direction from the liquid pool recess and is communicated with one of the first groove or the second groove.
Inventors:
FURUKORI TAKESHI (JP)
KOJIMA HIROSHI (JP)
KOJIMA HIROSHI (JP)
Application Number:
PCT/JP2021/037643
Publication Date:
April 21, 2022
Filing Date:
October 12, 2021
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
B60K5/12; F16F13/14
Domestic Patent References:
| WO2014156867A1 | 2014-10-02 |
Foreign References:
| JP2019086104A | 2019-06-06 | |||
| JP2016080056A | 2016-05-16 |
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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