Abstract: A biasing unit 2 comprises: a tension spring 22, one end of which is attached to the base member 20, another end of which is attached to the downward swing member 21, and which biases the downward swing member 21 rearward when the downward swing member 21 swings forward; an upward swing member 23 which is attached to an upper section in the base member 20 and swings back and forth with respect to the base member 20 integrally with an upper body support member 4; and a gas spring 24, one end of which is attached to the base member 20, another end of which is attached to the upward swing member 23, and which biases the upward swing member 23 rearward when the upward swing member 23 swings forward.

Abstract: A human body supporting exoskeleton device 10 includes base sections 12, an upper body mounting section 18, leg mounting sections 16, a hip belt 14, actuator containers 38, actuators 20, and wires 48, and the upper body mounting section 18 has an upper body frame 18 that consists of one component located in an upper part of the human body supporting exoskeleton device 10, has the actuator containers 38, and is directly connected to the pair of left and right base sections 12, and a ratio of the weight of the human body supporting exoskeleton device 10 to the urging force in a direction in which the human body P is heaved upright is 6 kgf/kg or more.

Abstract: Provided is an apparatus for functional training of an ankle and toe, which can provide better service results. An apparatus for functional training of an ankle and toe includes a foot platform configured to receive a foot of a user and disposed to face a portion of the foot of the user from rearfoot to forefoot; and an artificial muscle configured to displace the foot platform when operated. The apparatus for functional training of an ankle and toe further includes a toe platform disposed to face a toe of the user when the foot of the user is placed on the foot platform. The toe platform is configured to be displaced with respect to the foot platform when the artificial muscle is operated to displace the foot platform.

Abstract: An arm and lower back support device that is smaller in size, lighter and costs less. An arm and lower back support device (10) is provided with: an upper body frame (18) that is mounted on the back of a user; thigh arms (16) that are mounted on the lower limbs of the user; and arm support arms (20) that are mounted on the upper limbs of the user. In addition, the arm and lower back support device (10) comprises artificial muscles (22) which provide supportive force in the direction raising the upper body of the wearer, by urging the upper body frame (18) toward the thigh arms (16), and provide supportive force in the direction lifting the upper limbs of the user, by urging the arm support arms (20) toward the upper body frame (18).

Abstract: An extension assisting device that can assist mobility of a joint is provided. An extension assisting device has: a thigh arm that engages with a front portion of a thigh of a user; and an artificial muscle that, by being operated, applies force toward a rear side from the thigh arm to the thigh of the user, and displaces the thigh of the user toward the rear side relative to an upper body.