Abstract: A shoulder brace includes a shoulder cuff that can be worn to cover the shoulder of a user, an upper arm cuff that can be worn to cover the elbow joint of the user, a belt that can secure the shoulder cuff to the shoulder of the user, and an actuator that is the McKibben artificial muscle which can optionally expand and contract in entire length. The actuator contains a main actuator to link the vicinity of the acromion on the shoulder cuff and a side face of the upper arm cuff across the shoulder joint, an anterior auxiliary actuator to link a front face of the shoulder cuff and a front face of the upper arm cuff across the shoulder joint, and a posterior auxiliary actuator to link a back face of the shoulder cuff and a back face of the upper arm cuff across the shoulder joint.

Abstract: In an elastic tube as a driving force source of a fluid pressure actuator that is driven by supplying and discharging fluid such as air or liquid, a wear-resistant flocked layer is provided on an entire outer circumferential surface of the elastic tube, and the wear-resistant flocked layer being formed by an electrostatic flocking process in which short fibers made of synthetic resin are flocked to be perpendicular to the outer circumferential surface, and the wear-resistant flocked layer being further formed by the electrostatic flocking process in which the short fibers made of the synthetic fiber are flocked in a number of strips along an axial direction or in a number of dots on the entire outer circumferential surface.

Abstract: In an elastic tube as a driving force source of a fluid pressure actuator that is driven by supplying and discharging fluid such as air or liquid, a wear-resistant flocked layer is provided on an entire outer circumferential surface of the elastic tube, and the wear-resistant flocked layer being formed by an electrostatic flocking process in which short fibers made of synthetic resin are flocked to be perpendicular to the outer circumferential surface, and the wear-resistant flocked layer being further formed by the electrostatic flocking process in which the short fibers made of the synthetic fiber are flocked in a number of strips along an axial direction or in a number of dots on the entire outer circumferential surface.