Patent ID: 8212383

Claim:
A power supply apparatus supplying power from a vehicle body to a sliding door, in which a door-supporting bracket is arranged to move along a guide rail in a guide rail receiving portion of said vehicle body such that said sliding door is capable of opening and closing, comprising: a wiring body to supply power from said vehicle body side to said sliding door; a vehicle body side fixing member provided in a prescribed position of said guide rail receiving portion and that holds said wiring body at a fixed first position such that said wiring body moves inside said guide rail receiving portion and extends exterior to said vehicle body side fixing member at said fixed first position when opening and closing said sliding door, said vehicle body side fixing member including a first bend-forming portion having a non-zero curvature of a first prescribed curvature radius that contacts said wiring body to form a first bend at the curvature in said wiring body when said sliding door is positioned at one of a fully-opened and a fully-closed position; and a door-supporting bracket side fixing member provided in a prescribed position of said door-supporting bracket and that holds said wiring body at a fixed second position such that said wiring body moves inside said guide rail receiving portion when opening and closing said sliding door, said door-supporting bracket side fixing member including a second bend-forming portion having a second prescribed curvature radius that contacts said wiring body to form a second bend in said wiring body when said sliding door is positioned at said fully-opened position and a third bend-forming portion having a third prescribed curvature radius that contacts said wiring body to form a third bend in said wiring body when said sliding door is positioned at said fully-closed position, said third prescribed curvature radius being more than said second prescribed curvature radius and greater than zero, wherein the wiring body contacts the second bend-forming portion and the third bend-forming portion throughout an entire operation of the sliding door.