Feeding structure for sliding structural body

1. A feeding structure for a sliding structural body, comprising:

a protector base arranged in one of the sliding structural body and a stationary structural body;

a link arm pivotally supported by a shaft portion of the protector base;

a harness holder pivotally connected to an end portion of the link arm; and

a wire harness which is laid from one end of the protector base to the harness holder so as to be bent in a substantial S-shape, and laid from the harness holder to the other of the sliding structural body and the stationary structural body so as to be moved therebetween,

wherein the wire harness is formed into the substantial S-shape by a first curved portion laid in a periphery of the shaft portion of the protector base and a second curved portion, which crosses the link arm and extends to the harness holder, succeeding to the first curved portion, the second curved portion being reversely curved with respect to the first curved portion,

wherein the first curved portion is provided about the periphery of shaft portion extending outwardly from the link arm toward one side of the link arm, and the second curved portion extends about a periphery of the end portion of the link arm extending outwardly from the link arm toward another side of the link arm opposite the first side of the link arm, and

wherein upon an opening/closing movement of the sliding structural body, curvatures of the first and second curved portions are changed while keeping the second curved portion reversely curved with respect to the first curved portion.

2. The feeding structure according to claim 1 , wherein the substantial S-shape of the wire harness comprises a straight portion along the one end of the protector base, succeeding to the first curved portion at an end opposed to an end to which the second curved portion succeeds.

3. The feeding structure according to claim 1 , wherein the link arm is pushed by an elastic member in a direction in which a redundant length of wire the harness is absorbed, and

wherein the elastic member is a torsion coil spring arranged around the shaft portion of the protector base.

4. The feeding structure according to claim 2 , wherein a pair of guide walls parallel to each other is arranged on the one end of the protector base to form the straight portion of the wire harness.

5. The feeding structure according to claim 1 , wherein the link arm is pivotally supported by the shaft portion of the protector base at an end of the link arm opposite to the end portion at which the harness holder is connected.

6. The feeding structure according to claim 1 , wherein the substantial S-shape of the wire harness is disposed between the protector base and the link arm.

7. The feeding structure according to claim 1 , wherein the wire harness comprises an electric wire portion and a corrugated tube into which the electric wire portion is inserted, and wherein the harness holder engages the corrugated tube.

8. The feeding structure according to claim 1 , wherein the wire harness extends through the harness holder at a position that is offset from a pivot point at which the harness holder pivots relative to the link arm.

9. The feeding structure according to claim 1 , wherein the harness holder is pivotably connected to the link arm at a shaft portion of the link arm, and wherein the wire harness is separated from the shaft portion of the link arm.