Title:
HYDRAULIC ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2024/075346
Kind Code:
A1
Abstract:
This hydraulic actuator comprises: a cylindrical tube that expands and contracts in accordance with the pressure of a fluid; a sleeve that covers an outer circumferential surface of the tube and that, by expansion of the tube, widens the tube in the radial direction while limiting elongation in the axial direction S; a restricting member that is provided radially inward of the sleeve and from one side in the axial direction S to the other side, that resists compression along the axial direction, and that can deform in an intersecting direction X which intersects the axial direction; a first sealing member and a second sealing member which seal ends of the tube on the one direction side and the other direction side in the axial direction S; and a positioning member that is provided to part of the first sealing member and/or the second sealing member in the circumferential direction thereof, and that positions the restricting member such that the restricting member is along the axial direction.
Inventors:
OONO SHINGO (JP)
NOMURA KAZUAKI (JP)
NOMURA KAZUAKI (JP)
Application Number:
PCT/JP2023/023859
Publication Date:
April 11, 2024
Filing Date:
June 27, 2023
Export Citation:
Assignee:
BRIDGESTONE CORP (JP)
International Classes:
F15B15/10
Foreign References:
| JP2021088998A | 2021-06-10 | |||
| JP2021088999A | 2021-06-10 | |||
| JP2007068794A | 2007-03-22 | |||
| US20140314976A1 | 2014-10-23 |
Attorney, Agent or Firm:
TAIYO, NAKAJIMA & KATO (JP)
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