Slide wiring device

1. A slide wiring device comprising:

a metal rail;

a slider slidably arranged on the metal rail;

a wire harness in which a plurality of electric wires are armored by an armoring member made of a resin, the wire harness being coupled to the slider and configured to move in the metal rail along with movement of the slider; and

a resin rail that is arranged inside the metal rail, and is configured to confine movement of the armoring member,

wherein the armoring member is configured to move on the resin rail along with the movement of the slider.

2. The slide wiring device according to claim 1 ,

wherein the armoring member includes an engaging portion that protrudes to the resin rail side,

the resin rail includes an engaged portion that engages with the engaging portion,

the engaged portion is a groove portion into which the engaging portion is inserted, and

the groove portion includes, at its end portion, an entry-facilitating portion that widens toward the end portion, in a longitudinal direction, of the groove portion, and that is configured to facilitate entry of the engaging portion into the groove portion.

3. The slide wiring device according to claim 2 ,

wherein the groove portion has a bottom wall, and side walls that rise up from side edges of the bottom wall,

each side wall has a through hole penetrating the side wall at a position close to the bottom wall, and

the through hole has a bottom surface inclined downward toward the outside of the side wall.

4. The slide wiring device according to claim 1 ,

wherein the metal rail has, on its inner bottom surface, a fixing member for fixing the metal rail to a vehicle body, and

the resin rail includes a pedestal that is arranged on the inner bottom surface and has a height greater than the height of the fixing member, the resin rail confining the movement of the armoring member above the pedestal.