To improve a locking mechanism of a wire harness routed from a car body to a door.

A case including an insertion hole and a drawing hole of the wire harness routed from the car body to the door is fixed to the car body. The wire harness is meandered in a U-shape in the case. The wire harness is energized and is pulled to an inside of the case by interposing an elastic member between the case and the wire harness, and the wire harness pulled from the drawing hole is locked with the door. An electric wire group for constituting the wire harness is inserted in a net tube. In positions locked with the door and/or the elastic member, a board type cramp or a band type cramp is attached on an outer peripheral surface of the net tube, and hot melt type adhesive is filled between the board or band part and the net tube to fix the cramp to the net tube.