SLIDE DOOR POWER SUPPLY DEVICE

To provide a slide door power supply device which can suppress slackness of a wire harness when a slide door is slidably moved.SOLUTION: A slide door power supply device 1 has a power supply harness 2 laid over a vehicle body 100 and a slide door 200, a vehicle body side holding part 3 and a slide door side holding part 4. The slide door side holding part 4 includes a winding mechanism 5 for changing the length of a wound portion of the power supply harness 2 wound around a first winding part 60 and a second winding part 70 around which a part of the power supply harness 2 is wound, and the second winding part 70 is provided with a plate spring 731 for adjusting a distance D between a pivot point P1 in the winding mechanism 5 and a wound part X around which the wound portion of the power supply harness 2 is wound in the second winding part 70, involved in a state change by slide movement of the slide door 200 between a tensile state where tension acting on the power supply harness 2 is tensioned and an alleviation state where the tension acting on the power supply harness 2 is alleviated.SELECTED DRAWING: Figure 7 【課題】スライドドアのスライド移動に際し、ワイヤーハーネスの弛みを抑制できるスライドドア給電装置を提供する。【解決手段】スライドドア給電装置１は、車体１００とスライドドア２００の間に架け渡される給電ハーネス２と、車体側保持部３と、スライドドア側保持部４とを有し、スライドドア側保持部４には、給電ハーネス２の一部が巻き掛けられる第一巻掛部６０及び第二巻掛部７０に巻き掛けられた給電ハーネス２の巻き掛け部分の長さを変化させる巻掛機構５が備えられ、第二巻掛部７０に、給電ハーネス２に作用する張力が緊張した緊張状態と、給電ハーネス２に作用する張力が緩和された緩和状態とのスライドドア２００のスライド移動による状態変化に伴って、巻掛機構５における枢動点Ｐ１と、第二巻掛部７０において給電ハーネス２の巻き掛け部分が巻き掛けられる被巻掛部分Ｘとの距離Ｄを調整する板バネ７３１が設けられている。【選択図】図７