<p>A fixing frame has an attachment hole in which a plurality of wiring units are adapted to be arranged and attached to the fixing frame. The fixing frame includes: a frame portion; a plurality of bent pieces extending from an inner edge of the frame portion of the fixing frame and bent in an insertion direction of the wiring units, the bent pieces serving to restrain movement of the wiring units in an arrangement direction of the wiring units; and a linking piece for interconnecting the bent pieces, the linking piece serving to restrain movement of the wiring units in a removal direction of the wiring units.</p>
