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US 2019/0316608 A1Published application
Hydraulic actuator
AssigneeBridgestone Corporation
InventorsAtsushi NAKAYAMA, Yasunori TARUTANI, Shingo OHNO, Yasuo FUKUSHIMA
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AssigneeBridgestone Corporation
InventorsAtsushi NAKAYAMA, Yasunori TARUTANI, Shingo OHNO, Yasuo FUKUSHIMA
Estimating the term…
Provided is a hydraulic actuator having a tube with improved durability, the hydraulic actuator (10), having an actuator main body (100) constituted of a cylindrical tube (110) capable of expanding/contracting by hydraulic pressure and a cylindrical sleeve (120) formed by cords woven to be disposed in predetermined directions, wherein: the tube (110) has a laminated structure including two or more rubber layers, the rubber layers being constituted of at least one polar rubber layer (111) containing, with respect to a rubber component(s), ≥50 mass % of a polar rubber of which SP value is ≥8.7 and at least one non-polar rubber layer (112) containing, with respect to a rubber component(s), <50 mass % of a polar rubber of which SP value is ≥8.7.
A hydraulic actuator, having an actuator main body constituted of a cylindrical tube capable of expanding/contracting by hydraulic pressure and a sleeve for covering an outer peripheral surface of the tube, the sleeve having a cylindrical structure formed by cords woven to be disposed in predetermined directions, wherein:
Dependencies are inferred from the claim text.