To smoothly move a cable while protecting the cable.

One end of a cable is connected to a fixed portion and the other end is connected to a moving portion which is moved relative to the fixed portion. When the cable is bent and moved with the movement of the moving portion, a cable holder holds the cable so that the cable is bendable. The cable holder comprises a plate-like member formed of a flexible material in band shape so that it is bent in the widthwise direction and is extended in the lengthwise direction, and a linear member spirally formed of a flexible material. The plate-like member formed in band shape is installed in the extending direction of the cable. The spirally formed linear member is wound around the cable and the plate-like member.