Title:
SEAL DEVICE FOR HYDRAULIC APPARATUS AND SHOCK ABSORBER
Document Type and Number:
WIPO Patent Application WO/2023/095570
Kind Code:
A1
Abstract:
In the present invention, a seal device (S) for a hydraulic apparatus comprises: an annular main piston split body (outer member) (4); a sub piston split body (inner member) (5) inserted into the main piston split body (outer member) (4); and a seal ring (12) which is accommodated in an annular groove (50) provided in the outer circumference of the sub piston split body (inner member) (5), abuts the main piston split body (outer member) (4), and suppresses a liquid from passing between the main piston split body (outer member) (4) and the sub piston split body (inner member) (5), wherein the seal ring (12) has a self-lubrication property, and has, on an inner circumferential surface (bottom section-facing surface) (13) facing a bottom section (51) of the annular groove (50), a cylindrical surface (13a) centered on an axial line (A).
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Inventors:
KOYAMA MAKAKI (JP)
KANI KIYOSHI (JP)
YASUI TAKESHI (JP)
KANI KIYOSHI (JP)
YASUI TAKESHI (JP)
Application Number:
PCT/JP2022/040865
Publication Date:
June 01, 2023
Filing Date:
November 01, 2022
Export Citation:
Assignee:
KYB CORP (JP)
International Classes:
F16F9/508; F16F9/32; F16J15/10; F16J15/18
Domestic Patent References:
| WO2022130968A1 | 2022-06-23 |
Foreign References:
| JP2012211686A | 2012-11-01 | |||
| JP2013185666A | 2013-09-19 | |||
| JP2017096453A | 2017-06-01 | |||
| CN110985586A | 2020-04-10 | |||
| JPH0583538U | 1993-11-12 |
Attorney, Agent or Firm:
ISHIKAWA Ken (JP)
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