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Patent Searching and Data


Title:
LIQUID SEALING BUSH
Document Type and Number:
WIPO Patent Application WO/2021/039890
Kind Code:
A1
Abstract:
In this liquid sealing bush: main sealing protruding portions (23) which extend around the entire length in the circumferential direction and which are in pressure contact with an inner circumferential surface (11is) of an outer tube (11) are provided separately on an outer circumferential surface (13os) of an intermediate tube (13) in positions sandwiching a liquid chamber (15) and an orifice passage (16) from both sides in the axial direction; outside sealing protruding portions (22) which extend around the entire length in the circumferential direction and which are in pressure contact with the inner circumferential surface (11is) of the outer tube (11) are provided separately on the outer circumferential surface (13os) of the intermediate tube (13) in positions sandwiched by the two main sealing protruding portions (23) in the axial direction, and sandwiching the liquid chamber (15) and the orifice passage (16) from both sides in the axial direction; and a recessed portion (24) which is recessed inward in the radial direction and which penetrates through in the axial direction is formed in a part of at least one of the two outside sealing protruding portions (22) that is separated from the liquid chamber (15) in the circumferential direction.

Inventors:
HOSODA MASAKI (JP)
OTSU KAZUTAKA (JP)
Application Number:
PCT/JP2020/032320
Publication Date:
March 04, 2021
Filing Date:
August 27, 2020
Export Citation:
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Assignee:
BRIDGESTONE CORP (JP)
International Classes:
F16F1/38; F16F13/10; F16F13/14
Foreign References:
JP2001208124A2001-08-03
JPH08121527A1996-05-14
JPH0754910A1995-02-28
JP2019154531A2019-09-19
JP2019154532A2019-09-19
JP2019154537A2019-09-19
JPH07269644A1995-10-20
Attorney, Agent or Firm:
TANAI Sumio et al. (JP)
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