Abstract: A motion assisting device assists a movement of a wearer raising an upper body and includes a first assisting unit and a second assisting unit. The first assisting unit and the second assisting unit are attached to a left side surface and a right side surface of the wearer, respectively, and each include a power unit that swings a leg rod and applies, to the leg rod, a force in accordance with the swinging movement of the leg rod. The power unit is connected to a back surface frame that is a rigid body and connects the first assisting unit and the second assisting unit. A back plate of an upper body fixing member is connected to the back surface frame by a coupling member. The back plate is swingable at least in an up-down direction and a left-right direction with respect to the back surface frame.

Abstract: The durability of a wire rope is improved. The wire rope includes a rope body having at least one strand each formed with a plurality of element wires twisted with each other; a lubricant interposed between the plurality of element wires of the at least one strand; and a resin layer coating the outer periphery of the rope body along with the lubricant, the lubricant containing a sulfur-containing organic molybdenum compound.

Abstract: A motion assisting device includes a cord-like body that is wound around the outer peripheral surfaces of a first pulley and a second pulley. An elastic body energizing force in accordance with a rotation angle of the first pulley is provided to the first pulley at a first rotation axis, which is a rotation axis of the first pulley. Along with the rotation of the first pulley by energizing force of the elastic body, the cord-like body is wound around the first pulley and unwound from the second pulley, whereby the second pulley is rotated. Along with the rotation of the second pulley, a small gear rotating together with the second pulley with a second rotation axis as a center and a large gear fittable to the small gear rotate, and the large gear rotates a lower limb rod through a transmission mechanism.