Title:
HYDRAULIC ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2020/129743
Kind Code:
A1
Abstract:
This hydraulic actuator is provided with: an actuator body (100) including a tube (110) and a sleeve (120) covering the outer circumference of the tube (110); and a sealing mechanism (200, 300) for the actuator body (100). The sealing mechanism (200) is provided with: a sealing member (210) inserted in the actuator body (100); a crimping ring (230) restricting the actuator body (100) to the sealing member (210); and a locking ring (220) for locking the sleeve (120) to the sealing member (210). The sealing member (210) has a head section (211), a trunk section (212) inserted in the tube (110), and a sleeve lock accommodating section (213) provided between the head section (211) and the trunk section (212). The sleeve lock accommodating section (213) includes a flange portion (214) and a reduced-diameter portion (217), the diameter of which reduces from the flange portion (214) toward the head section (211) side.
Inventors:
OONO SHINGO
SAKURAI RYO
SAKURAI RYO
Application Number:
PCT/JP2019/048201
Publication Date:
June 25, 2020
Filing Date:
December 10, 2019
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
F15B15/10
Foreign References:
| JPS61157803A | 1986-07-17 | |||
| DE202005019238U1 | 2006-03-02 | |||
| CN2739353Y | 2005-11-09 | |||
| JP2018035930A | 2018-03-08 |
Attorney, Agent or Firm:
MIYOSHI Hidekazu et al. (JP)
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