Problem to be solved: to provide a fluid pressure actuator capable of having sufficient durability even when used in an environment that is contacted with a nearby object.Solution: the fluid pressure actuator is a cylindrical tube 110 which expands and contracts by the pressure of the fluid, and a stretchable structure in which the fiber cord 121 oriented in the predetermined direction is knitted, and has a sleeve 120 covering the outer peripheral surface of the tube 110.The surface of the fiber cord 121 constituting the sleeve 120 is covered with an elastic material and an elastic material is inserted between the adjacent fiber cord 121.Diagram
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