Power feeding apparatus for slidable structural body

1. A power feeding apparatus for a slidable structural body, comprising:

a link arm having a base end side which is pivotally provided on one of the slidable structural body and a fixed structural body so as to be pivotally moved in a harness surplus length-absorbing direction of a wire harness;

a harness holding portion provided on a distal end side of the link arm that is opposite the base end side, said harness holding portion retaining a first end portion of a wire harness; and

a harness fixing portion provided on the other of the slidable structural body and the fixed structural body, the harness fixing portion retaining a second end portion of the wire harness,

wherein the link arm is formed so as to be slidably expanded and contracted in a longitudinal direction of the link arm; and

wherein the wire harness is installed to extend from the harness holding portion to the harness fixing portion.

2. The power feeding apparatus for a slidable structural body according to claim 1 , wherein the link arm has a resilient body for urging the link arm in a direction to shorten its length.

3. The power feeding apparatus for a slidable structural body according to claim 2 , wherein the link arm includes a first link arm and a second link arm, and the resilient body urges the first link arm and the second link arm in the shortening direction.

4. The power feeding apparatus for a slidable structural body according to claim 1 , wherein the link arm has a fixing member for fixing the link arm with a length suitable for the sliding structural body.

5. The power feeding apparatus for a slidable structural body according to claim 1 , further comprising a resilient member for urging the link arm pivotally in the harness surplus length-absorbing direction.

6. The power feeding apparatus for a slidable structural body according to claim 1 , further comprising a harness guide provided along the link arm;

wherein a wire portion of the wire harness, while having a surplus length, is installed along the harness guide.

7. The power feeding apparatus according to claim 1 , wherein the link arm includes a first link arm and a second link arm, and the second link arm relatively slides with respect to the first link arm in an extending direction of the first link arm.

8. The power feeding apparatus for a slidable structural body according to claim 1 , wherein the link arm telescopes in a longitudinal direction of the link arm.

9. The power feeding apparatus for a slidable structural body according to claim 7 , wherein the second link arm telescopes relative to the first link arm.

10. The power feeding apparatus for a slidable structural body according to claim 3 , wherein the second link arm telescopes from a distal end of the first link arm.