JP4102640B2

JP4102640B2 - Power supply device for sliding door

Info

Publication number: JP4102640B2
Application number: JP2002301749A
Authority: JP
Inventors: 光伸加藤; 充規角田; 学伊藤; 克二鈴浦; 正広中島; 欣也石田
Original assignee: Aisin Seiki Co Ltd; Toyota Motor Corp; Yazaki Corp; Aisin Corp
Current assignee: Toyota Motor Corp; Yazaki Corp; Aisin Corp
Priority date: 2002-10-16
Filing date: 2002-10-16
Publication date: 2008-06-18
Anticipated expiration: 2022-10-16
Also published as: JP2004136735A

Description

【０００１】
【発明の属する技術分野】
本発明は、自動車のスライドドア側の補機等に常時給電を行うべく、スライドドア開閉時におけるワイヤハーネスの弛みを弾性部材で吸収させつつ弾性部材先端のハーネス支持部材でワイヤハーネスを安定に支持したスライドドア用給電装置に関するものである。
【０００２】
【従来の技術】
図６〜図７は、本出願人が先に提案した自動車のスライドドア用給電装置を示すものである（例えば特許文献１〜４参照）。
【０００３】
このスライドドア用給電装置３１は、ワイヤハーネス４を湾曲した状態に収容する合成樹脂製のプロテクタ３と、プロテクタ３内でワイヤハーネス４を上向きに付勢する金属製の板バネ５と、板バネ５の先端に固定され、ワイヤハーネス４を支持するキャップ（ハーネス支持部材）３２とを備えるものである。プロテクタ３や板バネ５については特許文献１に、キャップ３２については特許文献２にそれぞれ記載されている。
【０００４】
プロテクタ３はベース８とカバー７とで構成される。カバー７はベース８に係止され、その状態でベース８がスライドドア１９の金属製のドアパネル３３に固定される。ドアパネル３３に合成樹脂製のドアトリム（図示せず）が被着され、プロテクタ３はドアパネル３３とドアトリムとの間に位置する。プロテクタ３は垂直な基板部１１と、基板部１１の周囲の周壁１０とを有し、周壁１０の前端側にハーネス導出用の狭い口部１３、基板部１１の下端側に横長スリット状の口部９をそれぞれ有している。
【０００５】
ワイヤハーネス４の一方は前端側の口部１３から導出されてスライドドア１９側の補機やワイヤハーネス（図示せず）にコネクタ３４で接続され、ワイヤハーネス４の他方は下端側の口部９から導出されて渡り部３５を経て車両ボディ２０側（電源側）のワイヤハーネス（図示せず）にコネクタ接続される。ワイヤハーネス４は車両ボディ２０のステップ部３６の近傍でハーネス固定部６によって固定されている。
【０００６】
ワイヤハーネス４は屈曲性の良好な合成樹脂製のコルゲートチューブで被覆されている。コルゲートチューブは断面円形のものに限らず長円形のものも使用される。プロテクタ３のベース８には環状の屈曲規制壁１４が設けられている。板バネ５の基端側は屈曲規制壁１４の外側でベース８の固定部３７に固定されている。
【０００７】
図６のスライドドア１９の全閉直前の状態において、ワイヤハーネス４は板バネ５で持ち上げ方向に付勢され、キャップ３２で支持されて弛み（余長）吸収されつつ、ハーネス固定部６を支点に後方に引っ張られて大きな半径で湾曲する。「後方」とは車両後方の意味である。スライドドア１９は全閉時に車両ボディ２０側に近接する如く、開閉方向とほぼ直交する方向に二次元的に移動する。スライドドア１９を全閉状態から後方に開けるに従って、ワイヤハーネス４は大きく弛もう（垂れ下がろう）とするが、板バネ５の付勢力で持ち上げられて弛みが吸収される。また、板バネ先端のキャップ３２でワイヤハーネス４が安定に支持される。
【０００８】
そして、図７のスライドドア１９の全開近くの状態でワイヤハーネス４は固定部６を支点に前方に引っ張られつつ板バネ５を下向きに撓ませ、小さな半径で湾曲する。ワイヤハーネス４はドア全開時に屈曲規制壁１４によって過大な屈曲が防止される。全開から全閉においても板バネ５の付勢力でワイヤハーネス４の弛みが吸収される。弛みが吸収されることで、スライドドア１９と車両ボディ２０との間へのワイヤハーネス４の挟み込みが防止される。
【０００９】
スライドドア１９は全閉時に車両ボディ２０に密着し、全開時に車両ボディ２０から外側に離間する。ワイヤハーネス４はスライドドア１９の開閉に伴って車両ボディ側の固定部６を支点に前後に揺動しつつ、プロテクタ３内に引き込まれ、あるいはプロテクタ３から引き出されて伸縮する。
【００１０】
【特許文献１】
特開２００１−３５４０８５公報（第９−１１頁、図８−図１３）
【特許文献２】
特願２００１−７６５１５公報（図１−図２）
【特許文献３】
特願２００２−１７０３２公報
【特許文献４】
特願２００２−１２０９８公報
【００１１】
【発明が解決しようとする課題】
しかしながら、上記従来の構造にあっては、例えばワイヤハーネス４を構成する電線の本数が少ない場合やワイヤハーネス４が夏場の熱で暖められたりして、ワイヤハーネス４の剛性が下がった場合や、あるいは車種によってスライドドア１９のスライド量が大きく、ワイヤハーネス４の設定長さが長い場合等においては、図８，図９の如く、スライドドア１９の全閉時には何ら問題はないが、スライドドア１９の全開時に、小径に屈曲したワイヤハーネス４がプロテクタ３の下部開口９の前端３ａ側からではなく、長手方向中間部９ａから垂れるように車両ボディ２０側に導出されて、車両ボディ２０のホイルアーチ部２１に干渉するという懸念があった。図８で破線４’で示す部分がワイヤハーネスの理想の導出経路である。
【００１２】
本発明は、上記した点に鑑み、ワイヤハーネスの剛性が低い場合やスライドドアのスライド量が大きな場合でも、スライドドアの全開時にワイヤハーネスの経路を理想の位置に確保して、ワイヤハーネスと車両ボディとの干渉を防止することのできるスライドドア用給電装置を提供することを目的とする。
【００１３】
【課題を解決するための手段】
上記目的を達成するために、本発明の請求項１に係るスライドドア用給電装置は、ワイヤハーネスを上向きに付勢して弛み吸収させる弾性部材と、該弾性部材の先端に設けられた湾曲状のハーネス支持部材と、該ワイヤハーネスと該弾性部材と該ハーネス支持部材とを収容してスライドドアに縦置きに配置されたプロテクタとを備え、該プロテクタが、車外寄りに配置されたベースと、該ベースよりも丈が短く車室寄りに配置されたカバーとで構成され、該プロテクタの前端側から該ワイヤハーネスが立ち上げられて、該ベースと該カバーとの間の下部開口から車両ボディ側に揺動自在に導出されたスライドドア用給電装置において、前記ハーネス支持部材が、前記ワイヤハーネスを支持する長形の基板部と、該基板部の全長に渡って前記カバーに沿って該基板部の前記車両ボディ寄りに立設された長形の保持壁とで構成され、該ワイヤハーネスが小径に屈曲される前記スライドドアの全開時に、該保持壁の先端が前記下部開口において該プロテクタの前端ないしその近傍に位置して、該ワイヤハーネスを該プロテクタの前端からスライドドア閉じ方向に案内させることを特徴とする。
上記構成により、スライドドアの全開時にワイヤハーネスが弾性部材の付勢力に抗して小径に屈曲され（縮径され）、弾性部材はワイヤハーネスと一体的に屈曲しつつワイヤハーネスを弛み吸収方向（屈曲反対方向）に付勢し、ハーネス支持部材はワイヤハーネスを従来よりも長い長さの範囲で安定に支持（保持）し、ハーネス支持部材の先端延長方向にワイヤハーネスを導出させる。ワイヤハーネスはハーネス支持部材の延長方向に突出（導出）されつつ車両ボディ側に屈曲（湾曲）して配索される。これにより、ワイヤハーネスの配索経路が車両ボディに対して大回りに規定され、車両ボディとワイヤハーネスとの干渉が防止される。
【００１４】
また、プロテクタ内にワイヤハーネスが屈曲した状態に収容保護され、スライドドアの全閉時にワイヤハーネスが後方に引っ張られつつ大径に屈曲（湾曲）し、スライドドアの全開時にワイヤハーネスが前方に引っ張られつつ小径に屈曲（湾曲）する。ハーネス支持部材はスライドドアの全閉時にプロテクタ内に位置し、スライドドアの全開時に弾性部材がワイヤハーネスと一体的に小径に屈曲しつつ弾性部材先端のハーネス支持部材がプロテクタの下部側に回り込んで位置し、ハーネス支持部材の先端部がプロテクタから外部に突出するかしないかの位置でワイヤハーネスをほぼ真直にプロテクタ延長方向（スライドドア閉じ方向）に導出させる。これにより、ワイヤハーネスの配索経路が車両ボディに対して大回りに規定され、車両ボディとワイヤハーネスとの干渉が防止される。ハーネス支持部材はワイヤハーネスに対する補助プロテクタとしても作用し、ワイヤハーネスとプロテクタ内面との摩擦やそれに伴う異音や摩耗等を防止する。
また、スライドドアの全開時にワイヤハーネスが一側方の保持壁の内面に当接して車両ボディ側への導出位置がハーネス支持部材の先端のみに規制される。すなわちハーネス支持部材の長手方向中間部からワイヤハーネスがハーネス支持部材を乗り越えて導出してしまうことが防止される。これにより、スライドドアから車両ボディへのワイヤハーネスの配索経路が一層正確に確保され、ワイヤハーネスと車両ボディとの干渉が一層確実に防止される。保持壁はワイヤハーネスとプロテクタとの摺動摩擦を防止し、異音やワイヤハーネスの摩耗等を防止する。
【００１５】
請求項２に係るスライドドア用給電装置は、請求項１記載のスライドドア用給電装置において、前記ワイヤハーネスが大径に屈曲される前記スライドドアの全閉時に、前記ハーネス支持部材の基端が該ワイヤハーネスの屈曲頂部よりも前方に位置することを特徴とする。
上記構成により、プロテクタ内でワイヤハーネスの屈曲頂部がハーネス支持部材の基部側部分で折れ曲がりなく安定に支持され、ワイヤハーネスがプロテクタ内で滑らかに湾曲して、ワイヤハーネスの弛み（余長）吸収が引っ掛かりなくスムーズに行われる。また、スライドドアの開閉が小さな力でスムーズに行われる。
【００１７】
請求項３に係るスライドドア用給電装置は、請求項１又は２記載のスライドドア用給電装置において、前記ハーネス支持部材の基端側が小径に湾曲され、先端側が大径に湾曲されたことを特徴とする。
上記構成により、ハーネス支持部材が基端側でワイヤハーネスを小径に湾曲させつつ滑らかな湾曲形状で安定に支持してワイヤハーネスの弛み吸収をスムーズに行わせる。また、ハーネス支持部材の先端側でワイヤハーネスを大径に（直線に近い形状で）湾曲させつつ安定に支持して、車両ボディ側に正規の経路で導出させ、ワイヤハーネスと車両ボディとの干渉を防止する。
【００１８】
請求項４に係るスライドドア用給電装置は、ワイヤハーネスを弛み吸収方向に付勢する弾性部材と、該弾性部材の先端に固定されたハーネス支持部材とを少なくとも備えたスライドドア用給電装置において、前記ハーネス支持部材が湾曲状の剛体であり、前記ワイヤハーネスが小径に屈曲されるスライドドアの全開時に、該ハーネス支持部材が該ワイヤハーネスを車両ボディとの干渉なく案内させる長さに延長形成され、該ハーネス支持部材の固定側である基端側が小径に湾曲され、自由端側である先端側が大径に湾曲されたことを特徴とする。
上記構成により、スライドドアの全開時にワイヤハーネスが弾性部材の付勢力に抗して小径に屈曲され（縮径され）、弾性部材はワイヤハーネスと一体的に屈曲しつつワイヤハーネスを弛み吸収方向（屈曲反対方向）に付勢し、ハーネス支持部材はワイヤハーネスを従来よりも長い長さの範囲で安定に支持（保持）し、ハーネス支持部材の先端延長方向にワイヤハーネスを導出させる。ワイヤハーネスはハーネス支持部材の延長方向に突出（導出）されつつ車両ボディ側に屈曲（湾曲）して配索される。これにより、ワイヤハーネスの配索経路が車両ボディに対して大回りに規定され、車両ボディとワイヤハーネスとの干渉が防止される。また、ハーネス支持部材が基端側でワイヤハーネスを小径に湾曲させつつ滑らかな湾曲形状で安定に支持してワイヤハーネスの弛み吸収をスムーズに行わせる。また、ハーネス支持部材の先端側でワイヤハーネスを大径に（直線に近い形状で）湾曲させつつ安定に支持して、車両ボディ側に正規の経路で導出させ、ワイヤハーネスと車両ボディとの干渉を防止する。
【００２０】
【発明の実施の形態】
以下に本発明の実施の形態を図面に基づいて詳細に説明する。
図１〜図２は、本発明に係る自動車のスライドドア用給電装置及びハーネス配索構造の一実施形態を示すものである。
【００２１】
このスライドドア用給電装置１は、合成樹脂製のハーネス支持部材（ハーネス経路矯正バネキャップ）２を従来よりもかなり長く形成し、図１のスライドドアの全閉状態から図２のスライドドアの全開状態に移行させた時に、板バネ（弾性部材）５の先端の長形のハーネス支持部材２が合成樹脂製のプロテクタ３内でワイヤハーネス４を抱えるように支持して、ワイヤハーネス４をプロテクタ３に沿う方向すなわちプロテクタ３の前端３ａから外部に導出させるようにしたことを特徴とするものである。ハーネス支持部材２以外のプロテクタ３や板バネ（弾性部材）５等の構成は従来と同様であるので、従来と同一の作用構成部分には同一の符号を付して詳細な説明を省略する。
【００２２】
図１のスライドドアの全閉状態で、ワイヤハーネス４が後方に引っ張られつつ大径に湾曲した際に、ハーネス支持部材２の基端２ａは湾曲状のプロテクタ３の頂部３ｂすなわちワイヤハーネス４の頂部４ａよりも少し前側（板バネ５側）に位置し、ハーネス支持部材２の先端２ｂはプロテクタ３の後方湾曲部１０ａの高さ方向中間点よりも少し上側に位置する。また、図２のスライドドアの全開状態で、ワイヤハーネス４が前方に引っ張られつつ小径に湾曲した際に、ハーネス支持部材２の基端２ａはプロテクタ３の高さ方向中間点よりも少し下側に位置し、ハーネス支持部材２の先端２ｂはプロテクタ３の前端３ａとほぼ同じ位置ないし前端３ａから少し前方に突出して位置する。ハーネス支持部材２は板バネ５の基部５ａを支点として円弧状ないし二次曲線状の軌跡で回動（揺動）する。
【００２３】
スライドドアの全開及び全閉状態は従来の図６〜図７で説明したのと同様である。図１のスライドドアの全閉状態で、ワイヤハーネス４は板バネ５で上向きに付勢されてプロテクタ３内に収容され（引き込まれ）つつ大径に屈曲し、スライドドアとの間の渡り部（空間）を横断して車両ボディ側のハーネス固定部（固定具）６に続き、ハーネス固定部６を支点に後方に引っ張られている。ハーネス固定部６はワイヤハーネス４の外周のコルゲートチューブを周方向回動自在に支持している。
【００２４】
図１で鎖線７はプロテクタ３のカバー、実線８はベースをそれぞれ示している。ベース８はカバー７よりも下方にやや長く延長され、横長の下部開口９に沿ってカバー７の下端の縦断面湾曲状のハーネスガイド壁７ａが位置している。ベース８は垂直な基板１１と湾曲状の周壁１０と固定用のブラケット１２（図では一カ所のみ示す）とを備えている。プロテクタ３の前端３ａに、ワイヤハーネス４をスライドドア側に導出させる口部１３が位置している。口部１３は周壁１０に沿って上昇するハーネス導出路（図示せず）に連通していてもよい。
【００２５】
前側の周壁１０ｂに沿ってワイヤハーネス４が立ち上げられ、ワイヤハーネス４の内側に板バネ５が位置し、板バネ５の基端５ａがループ状の屈曲規制壁１４の外側でベース８の固定部（図示せず）に固定されている。板バネ５は真直に近い状態で少し内向きに湾曲しつつ立ち上げられ、板バネ５の先端にハーネス支持部材２が装着されている。
【００２６】
ハーネス支持部材２は図３，図４（図１とは表裏反転して描いている）に一実施形態を示す如く、湾曲状の基板部（底板部）１５の一側に高く突出した保持壁１６を有し、基板部１５の他側は外部に開放（開口）され、基板部１５の内面側に断面円弧状の溝部１７が形成され、溝部１７の受け面は一側の保持壁１６と他側の開放部１８に滑らかに続いている。
【００２７】
図４の鎖線４の如くワイヤハーネスが溝部１７で安定に支持され、且つ一側の保持壁１６でハーネス経路が正確に規定される。図１で一側の保持壁１６はカバー７側（寄り）に位置し、他側の開放部１８はベース８側に位置する。保持壁１６はカバー７に若干の隙間を存して対向する。
【００２８】
この構成により、図２のスライドドアの全開状態で保持壁１６がワイヤハーネス４を横長の下部開口９の前端３ａ側に導き、下部開口９の長手方向中間部からのワイヤハーネス４の飛び出しを防止する。これにより、図５の如く、ワイヤハーネス４がプロテクタ３の前端３ａからプロテクタ延長方向（プロテクタ前後方向すなわちスライドドア１９の開閉方向）に導出され、車両ボディ２０のホイルアーチ部２１との干渉が防止される。
【００２９】
なお、ハーネス支持部材２の例えば先端部２ｂとワイヤハーネス４とをテープ巻きやバンド等の固定部材で固定してもよく、それにより図２のハーネス屈曲時のハーネス支持部材２へのワイヤハーネス４の追従性が一層高まる。
【００３０】
また、図４の如くハーネス支持部材２の一側にのみ保持壁１６を設け、他側には保持壁１６を設けないことで、ハーネス支持部材２が幅方向にコンパクト化されている。両側に保持壁１６を設けた場合には、ハーネス支持部材の左右共用化が可能となる（図１は車両左側のスライドドア用給電装置１を示している）。
【００３１】
図２のスライドドアの全開状態でハーネス支持部材２の先端２ｂはカバー７の下端よりも低く、ベース８の下端と同程度ないしベース８の下端よりも少し高く位置し、カバー７の下端側の縦断面湾曲状のハーネスガイド壁７ａに接することなく、ハーネス支持部材２の一側の保持壁１６で前方に向けてほぼ直線的に導出されている。
【００３２】
図３において、ハーネス支持部材２の基部２ａには基板部１５の背面側において板バネ５の先端部を挿入させる真直な挿入孔２２と、挿入孔２２内で板バネ５の先端部を係止する係止突起２３とが設けられている。板バネ５の先端部には係止突起２３に対する係合孔（図示せず）が設けられている。これは一例であり、板バネ５へのハーネス支持部材２の固定手段は種々の形態を適宜設定可能である。
【００３３】
ハーネス支持部材２は基部２ａ側が小径に湾曲し、先端２ｂ側が大径に湾曲して、略バナナ状を呈している。この形状は、図１のスライドドア全閉時におけるワイヤハーネス４の大径な屈曲形状と図２のスライドドア全開時におけるワイヤハーネス４の小径な屈曲形状とに対応している。すなわち、図１でワイヤハーネス４の湾曲頂部４ａに対応してハーネス支持部材２の基部２ａ側の小径湾曲部２４が位置し、ワイヤハーネス４を小径湾曲部２４から先端側の大径湾曲部２５にかけて滑らかに湾曲させる。また、図２でハーネス支持部材２の基部側の小径湾曲部２４に沿ってワイヤハーネス４が小径に湾曲しつつ、先端側の大径湾曲部２５に沿ってプロテクタ３の外部へスムーズに導かれる。
【００３４】
なお、上記実施形態において、弾性部材として板バネ５に代えて棒状のばね部材や螺旋状のばね部材等を用いることも可能である。また、プロテクタ３としてベース８とカバー７とを一体化させたものを使用することも可能である。また、ハーネス支持部材２を合成樹脂ではなくアルミ材等で形成することも可能である。また、ワイヤハーネス４はコルゲートチューブに限らず網状の保護チューブを被着させたものや、全くチューブを被着させずにテープで荒巻きしたものであってもよい。また、車両ボディ側のハーネス固定部６はワイヤハーネス４を周方向に回動させずに単に固定させるものであってもよい。また、車両ボディ２０のホイルアーチ部２１に限らず、突出したあらゆる干渉部に対して本発明の長形のハーネス支持部材２は有効である。また、ハーネス支持部材２の断面円弧状の溝部１７を単に凹状の溝部とすることも可能である。また、カバー７の下端側の縦断面湾曲状のハーネスガイド壁７ａは必要に応じて設ければよく、ハーネス支持部材２の位置によっては不要な場合もあり得る。
【００３５】
【発明の効果】
以上の如く、請求項１記載の発明によれば、スライドドアの全開時にハーネス支持部材がワイヤハーネスを従来よりも長い長さの範囲で安定に支持（保持）し、ハーネス支持部材の先端延長方向にワイヤハーネスを導出させるから、ワイヤハーネスの配索経路が車両ボディに対して大回りに規定され、車両ボディとワイヤハーネスとの干渉が防止される。これにより、ワイヤハーネスの剛性が低い場合やスライドドアのスライド量が大きな場合（ワイヤハーネスの余長が長い場合）でも、ワイヤハーネスの摩耗等が防止され、スライドドアへの常時給電の信頼性が向上する。
【００３６】
また、スライドドアの全開時に弾性部材がワイヤハーネスと一体的に小径に屈曲しつつハーネス支持部材がプロテクタの下部側に回り込み、ハーネス支持部材の先端部がプロテクタから外部に突出するかしないかの位置でワイヤハーネスをほぼ真直にプロテクタ延長方向に導出させるから、ワイヤハーネスの配索経路が車両ボディに対して大回りに規定され、車両ボディとワイヤハーネスとの干渉が確実に防止される。これにより、ワイヤハーネスの摩耗等が防止され、スライドドアへの常時給電の信頼性が一層向上する。
また、スライドドアの全開時にワイヤハーネスが一側方の保持壁に当接して車両ボディ側への導出位置がハーネス支持部材の先端のみに規制されるから、スライドドアから車両ボディへのワイヤハーネスの配索経路が一層正確に確保され、ワイヤハーネスと車両ボディとの干渉が一層確実に防止され、スライドドアへの常時給電の信頼性が一層向上する。
【００３７】
請求項２記載の発明によれば、ワイヤハーネスの屈曲頂部がハーネス支持部材の基部側部分で折れ曲がりなく安定に支持され、ワイヤハーネスがプロテクタ内で滑らかに湾曲して、ワイヤハーネスの弛み（余長）吸収が引っ掛かりなくスムーズに行われる。これにより、スライドドアへの常時給電の信頼性が一層向上すると共に、スライドドアの開閉操作性が向上する。
【００３９】
請求項３記載の発明によれば、ハーネス支持部材が基端側でワイヤハーネスを小径に湾曲させつつ滑らかな湾曲形状で安定に支持してワイヤハーネスの弛み吸収をスムーズに行わせ、しかもハーネス支持部材の先端側でワイヤハーネスを大径に湾曲させつつ安定に支持して、車両ボディ側に正規の経路で導出させ、ワイヤハーネスと車両ボディとの干渉を防止するから、スライドドアの開閉操作性と常時給電の信頼性が一層向上する。
【００４０】
請求項４記載の発明によれば、スライドドアの全開時にハーネス支持部材がワイヤハーネスを従来よりも長い長さの範囲で安定に支持（保持）し、ハーネス支持部材の先端延長方向にワイヤハーネスを導出させるから、ワイヤハーネスの配索経路が車両ボディに対して大回りに規定され、車両ボディとワイヤハーネスとの干渉が防止される。これにより、ワイヤハーネスの剛性が低い場合やスライドドアのスライド量が大きな場合（ワイヤハーネスの余長が長い場合）でも、ワイヤハーネスの摩耗等が防止され、スライドドアへの常時給電の信頼性が向上する。また、ハーネス支持部材が基端側でワイヤハーネスを小径に湾曲させつつ滑らかな湾曲形状で安定に支持してワイヤハーネスの弛み吸収をスムーズに行わせ、しかもハーネス支持部材の先端側でワイヤハーネスを大径に湾曲させつつ安定に支持して、車両ボディ側に正規の経路で導出させ、ワイヤハーネスと車両ボディとの干渉を防止するから、スライドドアの開閉操作性と常時給電の信頼性が一層向上する。
【図面の簡単な説明】
【図１】本発明に係るスライドドア用給電装置及びハーネス配索構造の一実施形態（カバーは鎖線で示す）のスライドドア全閉時の状態を示す正面図である。
【図２】同じくスライドドア全開時の状態を示す正面図である。
【図３】ハーネス支持部材の一実施形態を示す一部を断面とした背面図である。
【図４】同じくハーネス支持部材を示す図３のＡ−Ａ断面図である。
【図５】スライドドア開閉時のプロテクタとワイヤハーネスの配置を示す平面図（上面図）である。
【図６】従来のスライドドア用給電装置及びハーネス配索構造のスライドドア全閉直前の状態を示す分解斜視図である。
【図７】同じくスライドドア全開直前の状態を示す斜視図である。
【図８】従来のスライドドア開閉時のプロテクタとワイヤハーネスの配置を示す平面図（上面図）である。
【図９】従来のスライドドア全開時の問題点を示す正面図である。
【符号の説明】
１スライドドア用給電装置
２ハーネス支持部材
２ａ基端
２ｂ先端
３プロテクタ
３ａ前端
４ワイヤハーネス
４ａ屈曲頂部
５板バネ（弾性部材）
１６保持壁
２０車両ボディ[0001]
BACKGROUND OF THE INVENTION
The present invention stably supports the wire harness with the harness support member at the tip of the elastic member while absorbing the slack of the wire harness at the time of opening and closing the slide door with the elastic member so as to constantly supply power to the auxiliary equipment on the slide door side of the automobile. those related to the power supply apparatus for sliding door.
[0002]
[Prior art]
6 to 7 show a power supply device for a sliding door of an automobile previously proposed by the present applicant (see, for example, Patent Documents 1 to 4).
[0003]
The power supply device 31 for the sliding door includes a protector 3 made of synthetic resin that accommodates the wire harness 4 in a curved state, a metal leaf spring 5 that urges the wire harness 4 upward in the protector 3, and a leaf spring. 5 and a cap (harness support member) 32 that supports the wire harness 4. The protector 3 and the leaf spring 5 are described in Patent Document 1, and the cap 32 is described in Patent Document 2.
[0004]
The protector 3 includes a base 8 and a cover 7. The cover 7 is locked to the base 8, and the base 8 is fixed to the metal door panel 33 of the slide door 19 in this state. A door trim (not shown) made of synthetic resin is attached to the door panel 33, and the protector 3 is positioned between the door panel 33 and the door trim. The protector 3 has a vertical substrate portion 11 and a peripheral wall 10 around the substrate portion 11, a narrow mouth portion 13 for leading out a harness on the front end side of the peripheral wall 10, and a horizontally elongated slit-like mouth on the lower end side of the substrate portion 11. Each has a portion 9.
[0005]
One of the wire harnesses 4 is led out from the mouth portion 13 on the front end side and connected to an auxiliary machine and a wire harness (not shown) on the slide door 19 side by a connector 34, and the other end of the wire harness 4 is the mouth portion 9 on the lower end side. Is connected to a wire harness (not shown) on the vehicle body 20 side (power supply side) through the crossover portion 35. The wire harness 4 is fixed by the harness fixing part 6 in the vicinity of the step part 36 of the vehicle body 20.
[0006]
The wire harness 4 is covered with a corrugated tube made of a synthetic resin having good flexibility. The corrugated tube is not limited to a circular cross section, and an oval tube is also used. An annular bending restriction wall 14 is provided on the base 8 of the protector 3. The base end side of the leaf spring 5 is fixed to the fixing portion 37 of the base 8 outside the bending regulating wall 14.
[0007]
In the state immediately before the sliding door 19 is fully closed in FIG. 6, the wire harness 4 is urged in the lifting direction by the leaf spring 5, supported by the cap 32, and loosened (extra length) is absorbed, while the harness fixing portion 6 is supported as a fulcrum. It is pulled backwards and curved with a large radius. “Rear” means the rear of the vehicle. The sliding door 19 moves two-dimensionally in a direction substantially perpendicular to the opening / closing direction so as to be close to the vehicle body 20 side when fully closed. As the sliding door 19 is opened rearward from the fully closed state, the wire harness 4 is greatly slackened (will hang down), but is lifted by the urging force of the leaf spring 5 to absorb the slack. Further, the wire harness 4 is stably supported by the cap 32 at the tip of the leaf spring.
[0008]
7, the wire harness 4 bends the leaf spring 5 downward while being pulled forward with the fixed portion 6 as a fulcrum, and is bent with a small radius. The wire harness 4 is prevented from being excessively bent by the bending restriction wall 14 when the door is fully opened. Even in the fully open to fully closed state, the slack of the wire harness 4 is absorbed by the urging force of the leaf spring 5. By absorbing the slack, the wire harness 4 is prevented from being caught between the slide door 19 and the vehicle body 20.
[0009]
The slide door 19 is in close contact with the vehicle body 20 when fully closed, and is spaced apart from the vehicle body 20 when fully opened. As the slide door 19 is opened and closed, the wire harness 4 swings back and forth around the vehicle body side fixed portion 6 and retracts or retracts from the protector 3.
[0010]
[Patent Document 1]
JP 2001-354085 A (page 9-11, FIG. 8 to FIG. 13)
[Patent Document 2]
Japanese Patent Application No. 2001-76515 (FIGS. 1 to 2)
[Patent Document 3]
Japanese Patent Application No. 2002-17032 [Patent Document 4]
Japanese Patent Application No. 2002-12098
[Problems to be solved by the invention]
However, in the above-described conventional structure, for example, when the number of wires constituting the wire harness 4 is small, or when the wire harness 4 is warmed by heat in summer, and the rigidity of the wire harness 4 decreases, Alternatively, when the sliding amount of the sliding door 19 is large depending on the vehicle type and the set length of the wire harness 4 is long, there is no problem when the sliding door 19 is fully closed as shown in FIGS. When the wire harness 4 is bent to a small diameter, the wire harness 4 is led out from the front end 3a side of the lower opening 9 of the protector 3 to the vehicle body 20 side so as to hang down from the longitudinal intermediate portion 9a. There was a concern of interfering with the part 21. A portion indicated by a broken line 4 'in FIG. 8 is an ideal lead-out path of the wire harness.
[0012]
In view of the above points, the present invention secures the path of the wire harness at an ideal position when the slide door is fully opened even when the rigidity of the wire harness is low or when the sliding amount of the sliding door is large. An object of the present invention is to provide a sliding door power supply device capable of preventing interference with a body.
[0013]
[Means for Solving the Problems]
In order to achieve the above object, a power supply device for a sliding door according to claim 1 of the present invention includes an elastic member that urges a wire harness upward to absorb slack , and a curved shape provided at the tip of the elastic member. A harness support member , a protector disposed in a vertical position on the slide door that accommodates the wire harness, the elastic member, and the harness support member, the protector being disposed on the outside of the vehicle, A cover that is shorter than the base and disposed closer to the passenger compartment, the wire harness is raised from the front end side of the protector, and the vehicle body side from the lower opening between the base and the cover in power supply apparatus for sliding door that is pivotally guided to the harness support member, the mosquito the a substrate portion of the elongated supporting the wire harness, the entire length of the base plate portion And a long holding wall erected near the vehicle body of the base plate portion, and when the sliding door is bent to a small diameter, the tip of the holding wall is The wire harness is guided from the front end of the protector to the sliding door closing direction at the lower opening and positioned at or near the front end of the protector .
With the above configuration, when the sliding door is fully opened, the wire harness is bent to a small diameter (reduced diameter) against the urging force of the elastic member, and the elastic member is bent integrally with the wire harness and loosens the wire harness in the absorption direction ( The harness support member stably supports (holds) the wire harness in a range longer than the conventional length, and the wire harness is led out in the direction of extending the tip of the harness support member. The wire harness is routed while being bent (curved) toward the vehicle body while protruding (derived) in the extending direction of the harness support member. Thereby, the routing route of the wire harness is defined around the vehicle body, and interference between the vehicle body and the wire harness is prevented.
[0014]
In addition, the protector is housed and protected in a state where the wire harness is bent. When the sliding door is fully closed, the wire harness is pulled backward and bent to a large diameter (curved). When the sliding door is fully opened, the wire harness is pulled forward. While being bent, it bends (curves) to a small diameter. The harness support member is located in the protector when the sliding door is fully closed, and when the sliding door is fully opened, the elastic supporting member is bent to a small diameter integrally with the wire harness and the harness supporting member at the tip of the elastic member wraps around the lower side of the protector. The wire harness is led out in the protector extending direction (sliding door closing direction) almost straight at the position where the tip of the harness supporting member protrudes from the protector or not. Thereby, the routing route of the wire harness is defined around the vehicle body, and interference between the vehicle body and the wire harness is prevented. The harness support member also acts as an auxiliary protector for the wire harness, and prevents friction between the wire harness and the protector inner surface, abnormal noise and wear associated therewith, and the like.
In addition, when the slide door is fully opened, the wire harness contacts the inner surface of the holding wall on one side, and the lead-out position to the vehicle body side is restricted only by the tip of the harness support member. That is, it is prevented that the wire harness gets over the harness support member from the longitudinal middle portion of the harness support member. Thereby, the wiring path of the wire harness from the slide door to the vehicle body is more accurately ensured, and the interference between the wire harness and the vehicle body is more reliably prevented. The holding wall prevents sliding friction between the wire harness and the protector, and prevents abnormal noise and wear of the wire harness.
[0015]
Claim 2 The power supply device for a sliding door according to, in the power supply apparatus for a sliding door according to claim 1, in fully closed the sliding door in which the wire harness is bent to have a larger diameter, the proximal end of the harness support It is located ahead of the bending top of the wire harness.
With the above configuration, the bent top portion of the wire harness is stably supported without bending at the base portion side of the harness support member in the protector, the wire harness is smoothly bent in the protector, and the looseness (extra length) of the wire harness is absorbed. It is performed smoothly without being caught. The sliding door can be opened and closed smoothly with a small force.
[0017]
The power supply device for a sliding door according to a third aspect is the power supply device for the sliding door according to the first or second aspect , wherein a proximal end side of the harness support member is curved to a small diameter and a distal end side is curved to a large diameter. And
With the above configuration, the harness support member stably supports the wire harness with a smooth curved shape while curving the wire harness to a small diameter on the proximal end side, and smoothly absorbs the slack of the wire harness. In addition, the wire harness is supported stably while being bent to a large diameter (in a shape close to a straight line) at the distal end side of the harness support member, and is led out to the vehicle body side through a normal path, so that the wire harness and the vehicle body interfere with each other. To prevent.
[0018]
A power supply apparatus for a sliding door according to claim 4 is an electric power supply apparatus for a slide door that includes at least an elastic member that biases the wire harness in a slack absorption direction and a harness support member that is fixed to the tip of the elastic member. The harness support member is a curved rigid body, and the harness support member is extended to a length that guides the wire harness without interference with the vehicle body when the slide door is bent to a small diameter. The proximal end side, which is the fixed side of the harness support member, is curved to a small diameter, and the distal end side, which is the free end side, is curved to a large diameter.
With the above configuration, when the sliding door is fully opened, the wire harness is bent to a small diameter (reduced diameter) against the urging force of the elastic member, and the elastic member is bent integrally with the wire harness and loosens the wire harness in the absorption direction ( The harness support member stably supports (holds) the wire harness in a range longer than the conventional length, and the wire harness is led out in the direction of extending the tip of the harness support member. The wire harness is routed while being bent (curved) toward the vehicle body while protruding (derived) in the extending direction of the harness support member. Thereby, the routing route of the wire harness is defined around the vehicle body, and interference between the vehicle body and the wire harness is prevented. In addition, the harness support member stably supports the wire harness with a smooth curved shape while curving the wire harness to a small diameter on the proximal end side, and smoothly absorbs the slack of the wire harness. In addition, the wire harness is supported stably while being bent to a large diameter (in a shape close to a straight line) at the distal end side of the harness support member, and is led out to the vehicle body side through a normal path, so that the wire harness and the vehicle body interfere with each other. To prevent.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 to 2 show an embodiment of a power supply device for a sliding door and a harness wiring structure according to the present invention.
[0021]
In this sliding door power supply device 1, a synthetic resin harness support member (harness path correction spring cap) 2 is formed to be considerably longer than the conventional one, and the sliding door of FIG. 1 is fully opened from the fully closed state of FIG. When the state is shifted to the state, the long harness support member 2 at the tip of the leaf spring (elastic member) 5 supports the wire harness 4 in the synthetic resin protector 3 so as to hold the wire harness 4. In other words, it is derived from the front end 3a of the protector 3 to the outside. Since the configurations of the protector 3 and the leaf spring (elastic member) 5 other than the harness support member 2 are the same as the conventional ones, the same reference numerals are given to the same operational components as the conventional ones, and the detailed description is omitted.
[0022]
In the fully closed state of the sliding door of FIG. 1, when the wire harness 4 is bent to a large diameter while being pulled rearward, the base end 2 a of the harness support member 2 is the top portion 3 b of the curved protector 3, that is, the wire harness 4. The front end 2b of the harness support member 2 is located slightly above the midpoint in the height direction of the rear curved portion 10a of the protector 3 and is located slightly forward (the leaf spring 5 side) from the top 4a. In addition, when the wire harness 4 is bent to a small diameter while being pulled forward in the fully open state of the sliding door of FIG. 2, the base end 2 a of the harness support member 2 is slightly below the intermediate point in the height direction of the protector 3. The front end 2b of the harness support member 2 is positioned substantially at the same position as the front end 3a of the protector 3 or slightly forward from the front end 3a. The harness support member 2 rotates (swings) in a circular or quadratic locus using the base 5a of the leaf spring 5 as a fulcrum.
[0023]
The fully open and fully closed state of the slide door is the same as that described with reference to FIGS. In the fully closed state of the sliding door of FIG. 1, the wire harness 4 is urged upward by the leaf spring 5 and is bent into a large diameter while being accommodated (retracted) in the protector 3, and the crossing portion between the sliding door Crossing the (space), following the harness fixing part (fixing tool) 6 on the vehicle body side, the harness fixing part 6 is pulled rearward. The harness fixing part 6 supports the corrugated tube on the outer periphery of the wire harness 4 so as to be rotatable in the circumferential direction.
[0024]
In FIG. 1, the chain line 7 indicates the cover of the protector 3, and the solid line 8 indicates the base. The base 8 extends slightly longer below the cover 7, and a harness guide wall 7 a having a curved longitudinal section at the lower end of the cover 7 is positioned along the horizontally long lower opening 9. The base 8 includes a vertical substrate 11, a curved peripheral wall 10, and a fixing bracket 12 (only one is shown in the figure). At the front end 3a of the protector 3, a mouth portion 13 for leading the wire harness 4 to the slide door side is located. The mouth portion 13 may communicate with a harness lead-out path (not shown) that rises along the peripheral wall 10.
[0025]
The wire harness 4 is raised along the front peripheral wall 10b, the leaf spring 5 is located inside the wire harness 4, and the base end 5a of the leaf spring 5 is fixed to the base 8 outside the loop-shaped bending regulating wall 14. Fixed to a portion (not shown). The leaf spring 5 is raised while being bent slightly inward in a state of being nearly straight, and the harness support member 2 is attached to the tip of the leaf spring 5.
[0026]
The harness support member 2 is a holding wall that protrudes highly to one side of the curved substrate portion (bottom plate portion) 15 as shown in FIGS. 16, the other side of the substrate portion 15 is opened (opened) to the outside, and a groove portion 17 having a circular arc shape is formed on the inner surface side of the substrate portion 15, and the receiving surface of the groove portion 17 is connected to the holding wall 16 on one side. The opening 18 on the other side smoothly follows.
[0027]
As shown by the chain line 4 in FIG. 4, the wire harness is stably supported by the groove portion 17, and the harness path is accurately defined by the holding wall 16 on one side. In FIG. 1, the holding wall 16 on one side is located on the cover 7 side (closer), and the opening 18 on the other side is located on the base 8 side. The holding wall 16 faces the cover 7 with a slight gap.
[0028]
With this configuration, the holding wall 16 guides the wire harness 4 to the front end 3a side of the horizontally long lower opening 9 in the fully opened state of the sliding door of FIG. 2, and prevents the wire harness 4 from jumping out from the middle portion of the lower opening 9 in the longitudinal direction. To do. As a result, as shown in FIG. 5, the wire harness 4 is led out from the front end 3 a of the protector 3 in the protector extending direction (the front-rear direction of the protector, that is, the opening / closing direction of the slide door 19), and interference with the wheel arch portion 21 of the vehicle body 20 is prevented. Is done.
[0029]
For example, the distal end portion 2b of the harness support member 2 and the wire harness 4 may be fixed with a fixing member such as a tape or a band, whereby the wire harness 4 to the harness support member 2 when the harness is bent in FIG. The follow-up performance is further enhanced.
[0030]
Further, as shown in FIG. 4, the harness supporting member 2 is made compact in the width direction by providing the holding wall 16 only on one side of the harness supporting member 2 and not providing the holding wall 16 on the other side. When the holding walls 16 are provided on both sides, the harness support member can be shared between the left and right sides (FIG. 1 shows the sliding door power supply device 1 on the left side of the vehicle).
[0031]
2, the tip 2b of the harness support member 2 is located lower than the lower end of the cover 7, approximately the same as the lower end of the base 8, or slightly higher than the lower end of the base 8. Without being in contact with the harness guide wall 7a having a curved longitudinal section, the harness support member 2 is led out substantially linearly toward the front by the holding wall 16 on one side.
[0032]
In FIG. 3, the base 2 a of the harness support member 2 has a straight insertion hole 22 into which the tip of the leaf spring 5 is inserted on the back side of the substrate portion 15, and the tip of the leaf spring 5 is locked in the insertion hole 22 . A locking projection 23 is provided. An engagement hole (not shown) for the locking projection 23 is provided at the tip of the leaf spring 5. This is an example, and various forms can be appropriately set as the means for fixing the harness support member 2 to the leaf spring 5.
[0033]
The harness support member 2 has a substantially banana shape with the base 2a side curved to a small diameter and the tip 2b side curved to a large diameter. This shape corresponds to the large-diameter bent shape of the wire harness 4 when the sliding door is fully closed in FIG. 1 and the small-diameter bent shape of the wire harness 4 when the sliding door is fully opened in FIG. That is, in FIG. 1, the small-diameter curved portion 24 on the base 2 a side of the harness support member 2 is positioned corresponding to the curved top 4 a of the wire harness 4, and the wire harness 4 is moved from the small-diameter curved portion 24 to the large-diameter curved portion 25 on the distal end side. To bend smoothly. Further, in FIG. 2, the wire harness 4 is smoothly guided to the outside of the protector 3 along the large-diameter curved portion 25 on the distal end side while being curved to a small diameter along the small-diameter curved portion 24 on the base side of the harness supporting member 2. .
[0034]
In the above embodiment, a rod-like spring member, a spiral spring member, or the like can be used as the elastic member instead of the plate spring 5. Further, it is possible to use a protector 3 in which the base 8 and the cover 7 are integrated. It is also possible to form the harness support member 2 from an aluminum material or the like instead of a synthetic resin. Further, the wire harness 4 is not limited to the corrugated tube, but may be one in which a net-like protective tube is attached, or one in which the tube is not attached at all and is roughly wound with a tape. Further, the harness fixing portion 6 on the vehicle body side may be simply fixed without rotating the wire harness 4 in the circumferential direction. The long harness support member 2 of the present invention is effective not only for the wheel arch portion 21 of the vehicle body 20 but also for any protruding interference portion. Further, the groove portion 17 having a circular arc shape in the harness support member 2 may be simply a concave groove portion. Further, the harness guide wall 7a having a curved longitudinal section on the lower end side of the cover 7 may be provided as necessary, and may be unnecessary depending on the position of the harness support member 2.
[0035]
【The invention's effect】
As described above, according to the first aspect of the present invention, when the sliding door is fully opened, the harness support member stably supports (holds) the wire harness in the range of a longer length than the conventional one, and the distal end extension direction of the harness support member Since the wire harness is led out, the wiring route of the wire harness is defined around the vehicle body, and interference between the vehicle body and the wire harness is prevented. As a result, even when the rigidity of the wire harness is low or when the sliding amount of the sliding door is large (when the extra length of the wiring harness is long), the wear of the wiring harness is prevented and the reliability of constant power supply to the sliding door is improved. improves.
[0036]
In addition, when the sliding door is fully opened, the elastic support member is bent to a small diameter integrally with the wire harness, the harness support member goes around the lower part of the protector, and the tip of the harness support member protrudes from the protector. Thus, since the wire harness is led out almost straight in the protector extending direction, the wiring path of the wire harness is defined around the vehicle body, and the interference between the vehicle body and the wire harness is surely prevented. Thereby, wear of the wire harness and the like are prevented, and the reliability of constant power supply to the sliding door is further improved.
In addition, when the sliding door is fully opened, the wire harness comes into contact with the holding wall on one side, and the lead-out position to the vehicle body side is restricted only by the tip of the harness support member. The routing route is more accurately secured, the interference between the wire harness and the vehicle body is more reliably prevented, and the reliability of the constant power supply to the sliding door is further improved.
[0037]
According to invention of Claim 2 , the bending | flexion top part of a wire harness is stably supported without bending in the base part side part of a harness support member, a wire harness curves smoothly within a protector, and slack (extra length of a wire harness) ) Absorption is performed smoothly without being caught. Thereby, the reliability of the constant power supply to the sliding door is further improved, and the opening / closing operability of the sliding door is improved.
[0039]
According to the invention of claim 3 , the harness support member stably supports the wire harness with a smooth curved shape while curving the wire harness to a small diameter on the proximal end side, and smoothly absorbs the slack of the wire harness, and further supports the harness. Opening and closing operability of the sliding door because the wire harness is stably supported while curving to a large diameter on the tip side of the member and led out to the vehicle body side through a regular path to prevent interference between the wire harness and the vehicle body And the reliability of constant power supply is further improved.
[0040]
According to the invention of claim 4 , when the sliding door is fully opened, the harness support member stably supports (holds) the wire harness in a range of a longer length than before, and the wire harness is extended in the direction of extending the tip of the harness support member. Therefore, the wiring route of the wire harness is defined around the vehicle body, and interference between the vehicle body and the wire harness is prevented. As a result, even when the rigidity of the wire harness is low or when the sliding amount of the sliding door is large (when the extra length of the wiring harness is long), the wear of the wiring harness is prevented and the reliability of constant power supply to the sliding door is improved. improves. In addition, the harness support member bends the wire harness to a small diameter on the base end side and stably supports it with a smooth curved shape to smoothly absorb the slack of the wire harness, and the wire harness is supported on the distal end side of the harness support member. It is supported stably while being curved to a large diameter, and is led out to the vehicle body side through a regular route to prevent interference between the wire harness and the vehicle body, further improving the sliding door opening and closing operability and the reliability of constant power supply. improves.
[Brief description of the drawings]
FIG. 1 is a front view showing a state when a sliding door is fully closed according to an embodiment (a cover is shown by a chain line) of a feeding device for a sliding door and a harness routing structure according to the present invention.
FIG. 2 is a front view showing the state when the sliding door is fully opened.
FIG. 3 is a rear view, partly in section, showing one embodiment of a harness support member.
4 is a cross-sectional view taken along the line AA of FIG. 3 showing the harness support member. FIG.
FIG. 5 is a plan view (top view) showing the arrangement of the protector and the wire harness when the sliding door is opened and closed.
FIG. 6 is an exploded perspective view showing a state immediately before the sliding door is fully closed in a conventional sliding door power supply device and harness routing structure.
FIG. 7 is a perspective view showing a state immediately before the sliding door is fully opened.
FIG. 8 is a plan view (top view) showing an arrangement of a protector and a wire harness when a conventional sliding door is opened and closed.
FIG. 9 is a front view showing a problem when the conventional sliding door is fully opened.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Power supply apparatus for sliding doors 2 Harness support member 2a Base end 2b Tip 3 Protector 3a Front end 4 Wire harness 4a Bend top 5 Leaf spring (elastic member)
16 Holding wall 20 Vehicle body

Claims

An elastic member for slack absorbing and urges the wire harness upward, to accommodate the curved harness support member provided at the tip of the elastic member, and the wire harness and the elastic member and the harness support member A protector disposed vertically on the sliding door, the protector comprising a base disposed on the outside of the vehicle and a cover having a shorter length than the base and disposed on the vehicle compartment. In the power supply apparatus for a sliding door, the wire harness is raised from the front end side and is swingably led out from the lower opening between the base and the cover to the vehicle body side .
The harness support member has an elongated substrate portion that supports the wire harness, and an elongated holding wall that is erected near the vehicle body of the substrate portion along the cover over the entire length of the substrate portion. When the sliding door is fully opened and the wire harness is bent to a small diameter, the front end of the holding wall is positioned at or near the front end of the protector in the lower opening, and the wire harness is attached to the protector. A power supply device for a sliding door, characterized in that the sliding door is guided in the closing direction from the front end .

The fully closed of the sliding door the wire harness is bent in a large diameter, the sliding door of claim 1, wherein the proximal end of the harness support member is being located more forward than the bent top portion of the wire harness Power supply device.

The power supply apparatus for a sliding door according to claim 1 or 2, wherein a proximal end side of the harness support member is curved to a small diameter and a distal end side is curved to a large diameter.

In the sliding door power supply apparatus comprising at least an elastic member that urges the wire harness in the slack absorbing direction and a harness support member fixed to the tip of the elastic member,
The harness support member is a curved rigid body, and the harness support member is extended to a length that guides the wire harness without interference with the vehicle body when the slide door is bent to a small diameter. A power supply device for a sliding door, characterized in that a base end side that is a fixed side of the harness support member is curved to a small diameter, and a distal end side that is a free end side is curved to a large diameter.