Title:
HYDRAULIC ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2023/105925
Kind Code:
A1
Abstract:
This hydraulic actuator includes an actuator main body 100 and a sealing mechanism 200. The sealing mechanism 200 includes a sealing member 210 through which the sealing mechanism 200 is inserted, a clamping ring 230 that is provided on an outer peripheral surface of the sealing mechanism 200 inserted into the sealing member 210 and restrains the sealing mechanism 200, and a securing wire 220 for securing a sleeve to the sealing member 210. The sealing member 210 includes a head portion 211 provided outside of a body portion 212, and middle portion 213 provided between the body portion 212 and the head portion 211. The middle portion 213 includes an expanded portion 214 that is smaller in size in the radial direction of the sealing mechanism 200 than the head portion 211, and bulges outward in the radial direction of the actuator main body 100 more than the body portion 212. The securing wire 220 is compressed and deformed to fill a space formed between the clamping ring 230 and the middle portion 213.
Inventors:
OONO SHINGO
Application Number:
PCT/JP2022/038434
Publication Date:
June 15, 2023
Filing Date:
October 14, 2022
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
F15B15/10; F16L13/14
Domestic Patent References:
| WO2015097895A1 | 2015-07-02 |
Foreign References:
| JP2018035930A | 2018-03-08 | |||
| JP2018108814A | 2018-07-12 | |||
| JP2005315381A | 2005-11-10 |
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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