JP2004098915A

JP2004098915A - Feeding device for sliding door

Info

Publication number: JP2004098915A
Application number: JP2002265115A
Authority: JP
Inventors: Mitsunori Tsunoda; 角田　充規; Toru Aoki; 青木　透; Akira Tsubaki; 椿　章; Tsukasa Sekino; 関野　司
Original assignee: Yazaki Corp
Current assignee: Yazaki Corp
Priority date: 2002-09-11
Filing date: 2002-09-11
Publication date: 2004-04-02
Anticipated expiration: 2022-09-11
Also published as: JP4077284B2

Abstract

<P>PROBLEM TO BE SOLVED: To reduce the cost of a protector for absorbing harness slack that is arranged so as to regularly feed electricity to a sliding door of each vehicle model. <P>SOLUTION: This feeding device 1 for sliding door comprises the protector 2 for housing a wire harness in a curved shape, and an elastic member 13 for energizing the wire harness. The protector 2 is divided to common function parts 5 and 7 for housing the elastic member 13 and exclusive function parts 6 and 8 other than it. The distortion track of the tip side of the elastic member 13 is located on the inside of the common function parts 5 and 7. The common function parts 5 and 8 have a substantially annular harness curvature regulating wall 12. The exclusive function parts 6 and 8 has a rectangular opening 27 for leading the harness and a curved sectional harness guide part 23. The exclusive function parts 6 and 8 are formed of a high-rigid shape or material. The protector 2 is formed of a base 3 and a cover 4 which are mutually lockable. The common function parts 5 and 7 are detachably fixed to the exclusive function parts 6 and 8 through fixing means. <P>COPYRIGHT: (C)2004,JPO

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に常時給電を行うべくスライドドア開閉時のワイヤハーネスの弛みを吸収させるプロテクタ等を備え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（特許文献１参照）。
【０００３】
このスライドドア用給電装置５１は、ワイヤハーネス５２を湾曲した状態に収容する合成樹脂製のプロテクタ５３と、プロテクタ５３内に設けられ、ワイヤハーネス５２を上向き（弛み反対方向）に付勢する金属製の板ばね（弾性部材）５６とを備えるものである。
【０００４】
プロテクタ５３はベース５４とカバー５５とで構成されている。ベース５４とカバー５５は係止突起と係合枠片といった係止手段（図示せず）で係止され、ベース５４が自動車のスライドドア５７の金属製のドアパネル５８にボルト５９や係止クリップ等で固定される。ドアパネル５８には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５３はドアパネル５８とドアトリムとの間に位置する。
【０００５】
ベース５４とカバー５５は垂直な基板６０，６１と、基板６０，６１の周囲（上側と前後）に形成された周壁６２，６３とを備え、ベース５４とカバー５５の組付状態で両周壁６２，６３が上下に重なり、両基板６０，６１の間にハーネス移動（屈曲）用の空間が構成され、プロテクタ５３の前端にハーネス導出用の狭い開口６４が構成され、プロテクタ５３の下端にハーネス導出用の横長スリット状の開口６５が構成される。板ばね５６の基部はベース５４に固定され、板ばね５６の先端（自由端）側はワイヤハーネス５２を支持している。ベース５４にワイヤハーネス５２の屈曲径を規定するための略環状の屈曲規制壁（図示せず）を設けることもある。
【０００６】
ワイヤハーネス５２の一方は前端側の開口６４寄りでテープ巻き等で固定されつつ開口６４から導出されてスライドドア側の補機やワイヤハーネス（図示せず）にコネクタ６６で接続され、ワイヤハーネス５２の他方は下端側の開口６５から導出されて渡り部（空間）６７を経て車両ボディ６８側に配索され、ステップ６９の近傍のハーネス固定部７０で固定されて、車両ボディ側のワイヤハーネス（図示せず）にコネクタ接続される。
【０００７】
図６のスライドドア５７の全閉状態で、ワイヤハーネス５２は後方に引っ張られつつ板ばね５６で上向きに付勢されて大きな半径で湾曲する。全閉状態からスライドドア５７を後方にスライドさせて図７の如く半開（全開に近い）にした位置で、ワイヤハーネス５２は小さな半径で湾曲しつつ大きく垂れ下がろうとするが、板ばね５６が上向きに付勢して垂れ下がりを防止する。スライドドア５７を全開から全閉にする際にも上記同様の作用でワイヤハーネス５２の垂れ下がりが防止される。これにより、スライドドア５７と車両ボディ６８との間へのワイヤハーネス５２の挟み込みが防止される。スライドドア５７の開閉に伴ってワイヤハーネス５２は前後に揺動する。なお、図７でカバー５５は図示を省略している。
【０００８】
【特許文献１】
特開２００１−３５４８５公報（第９−１１頁、図８−図１３）
【０００９】
【発明が解決しようとする課題】
しかしながら、上記従来のスライドドア用給電装置５１にあっては、スライドドア５７の種類ごとにスライドドア５７の内部スペースやスライド量を考慮して給電装置５１を一品一様に専用部品として設計しているために、他車のスライドドアへの流用が極めて困難で、多くの設計工数や部品コストがかかるという問題があった。また、プロテクタ５３内においてワイヤハーネス５２の収容や板ばね５６による余長（弛み）吸収やワイヤハーネス５２の摺動や屈曲制限といった種々の機能を持たせているために、構造が大型化しやすく、その場合にスライドドア内の他の部品等に干渉して組付が困難になったり、それを防ぐべく設計に多くの工数を要するといった問題があった。
【００１０】
本発明は、上記した点に鑑み、他種のスライドドアへの流用性を高めて設計工数や部品コストを低減させることができ、しかも構造の肥大化を防止してスライドドアへの装着性を向上させることが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。
【００１１】
【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、ワイヤハーネスを湾曲状に収容するプロテクタと、プロテクタ内で該ワイヤハーネスを弛み反対方向に付勢する弾性部材とを備えるスライドドア用給電装置において、前記弾性部材を収容する共通機能部とそれ以外の専用機能部とに前記プロテクタを分割したことを特徴とする。
上記構成により、車種（スライドドアの種類）ごとに共通機能部を共用することで、少なくとも弾性部材を固定する部分（固定機能）や弾性部材を撓ませる空間（ハーネス余長吸収機能）が共用化され、部品点数が削減される。また、車種（スライドドアの種類）ごとに専用機能部を別々に使用することで、ワイヤハーネスの余長（弛み長さ）の相違に対応して車種ごとに余長部をプロテクタ内に確実に収容（余長を確実に吸収）させることができる。また、共通機能部の大きさは一定で、専用機能部のみの大きさを車種ごとの余長に応じて変更すればよいから、共通機能部をコンパクトに形成することができ、プロテクタ全体の小型化が可能となる。
【００１２】
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、前記弾性部材の先端側の撓み軌跡が前記共通機能部の内側に位置することを特徴とする。
上記構成により、共通機能部の搬送時や共通機能部に専用機能部を合体させる際に弾性部材の先端が外部に露出することがなく、弾性部材が干渉等から安全に保護される。また、スライドドアの開閉時にワイヤハーネスが伸縮して弾性部材が撓んだ際に、弾性部材の先端が共通機能部と専用機能部との接合（合体）部分に接する（引っ掛かる）ことがなく、弾性部材のスムーズな撓み動作が可能となる。
【００１３】
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、前記共通機能部が弾性部材固定部に隣接して略環状のハーネス屈曲規制壁を備えることを特徴とする。
例えばスライドドアを強い力で全開にしてワイヤハーネスが小径に屈曲した際に、ワイヤハーネスがハーネス屈曲規制壁に接してそれ以上の縮径（屈曲）が阻止され、ワイヤハーネスへの強い曲げストレスが防止される。このようなハーネス屈曲規制壁を共通機能部に設けることで、車種ごとにハーネス屈曲規制機能が共用化され、部品点数及び設計工数の削減とハーネス屈曲規制壁の一定化によるプロテクタのコンパクト化が可能となる。
【００１４】
請求項４に係るスライドドア用給電装置は、請求項１〜３の何れか１項に記載のスライドドア用給電装置において、前記専用機能部が、前記プロテクタの全長に渡って形成されたハーネス導出用の長形の開口と、該開口に沿う断面湾曲状のハーネスガイド部とを備えることを特徴とする。
上記構成により、スライドドアの開閉に伴ってワイヤハーネスが開口から導出されつつハーネスガイド部に沿ってスライドドア開閉方向に揺動する。ハーネスガイド部が専用機能部に形成されているから、ワイヤハーネスの揺動が引っ掛かりなくスムーズに行われる。専用機能部と共通機能部との継ぎ目（接合部）がある場合はワイヤハーネスが継ぎ目に引っ掛かってスムーズに揺動しにくくなる。
【００１５】
請求項５に係るスライドドア用給電装置は、請求項１〜４の何れか１項に記載のスライドドア用給電装置において、前記専用機能部が高剛性の形状又は材質で形成されたことを特徴とする。
上記構成により、ハーネス余長吸収空間を有する専用機能部が剛性アップされることで、ワイヤハーネスを湾曲状に収容して余長を吸収する際に、ワイヤハーネスに押圧されて専用機能部にかかる力が確実に受け止められて、専用機能部の変形等が防止される。また、長形の開口に沿ってワイヤハーネスが揺動しつつ断面湾曲状のハーネスガイド部に摺接する際に、専用機能部に外向きの押圧力が作用するが、この力が確実に受け止められて専用機能部の変形等が防止される。
【００１６】
請求項６に係るスライドドア用給電装置は、請求項１〜５の何れか１項に記載のスライドドア用給電装置において、前記プロテクタが、係止可能なベースとカバーとで構成され、該ベースとカバーとが前記共通機能部と前記専用機能部とをそれぞれ有することを特徴とする。
上記構成により、プロテクタがベースの共通機能部と専用機能部、カバーの共通機能部と専用機能部というように四部品構成となり、ベースの共通機能部と専用機能部同士、カバーの共通機能部と専用機能部同士をそれぞれ接合させておき、ベース内にワイヤハーネスを収容した後、カバーを被せてプロテクタを構成させることができる。四部品構成により、ワイヤハーネスの組付性や弾性部材の組付性が向上する。
【００１７】
請求項７に係るスライドドア用給電装置は、請求項１〜６の何れか１項に記載のスライドドア用給電装置において、前記共通機能部と前記専用機能部とが固定手段で着脱可能に固定されたことを特徴とする。
上記構成により、共通機能部と専用機能部とを容易に固定及び固定解除でき、組付性及びメンテナンス性が高まる。
【００１８】
請求項８に係るスライドドア用給電装置は、請求項７記載のスライドドア用給電装置において、前記カバーの共通機能部と専用機能部とが爪部と差込部との係合で固定され、前記ベースの共通機能部と専用機能部とが薄肉の突板部同士の噛み合いで固定されたことを特徴とする。
上記構成により、爪部を差込部に挿入することでカバーの共通機能部と専用機能部とが少なくとも板厚方向に不動に固定され、突板部同士を板厚方向に接合し（噛み合わせ）、ベースとカバーとを係止させることで、各共通機能部と各専用機能部とがガタ付きなくしっかりと固定される。ベースはスライドドアのドアパネルに接するが、薄肉の突板部同士をベースの板厚の範囲内で接合させることで、出っ張りがなくなり、ドアパネルに密着してしっかりと固定される。
【００１９】
【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３は、本発明に係るスライドドア用給電装置の一実施形態の概要を示すものである。
【００２０】
図１の如くスライドドア用給電装置１は、合成樹脂製のベース３とカバー４とで成るプロテクタ２がそれぞれ共通機能部５，７と専用機能部６，８とに分割されたことを特徴とする。プロテクタ２の略前半に共通機能部５，７が位置し、プロテクタ２の略後半に専用機能部６，８が位置している。共通機能部５，７は車種（スライドドアの種類）ごとに共通で使用され、専用機能部６，８は車種別に専用で使用される。
【００２１】
ベース３の共通機能部５は垂直な基板９と基板９の周囲の前下がりの周壁１０とを有し、基板９に板ばね固定部（弾性部材固定部）１１と略環状のハーネス屈曲規制壁１２とが設けられ、板ばね固定部１１に金属製の板ばね（弾性部材）１３の基部が固定されている。
【００２２】
板ばね固定部１１は、一例として基板９と一体に形成された突出壁（符号１１で代用）に板ばね挿入用のスリット１４と、スリット１４を覆う金属製又は合成樹脂製の固定板（図示せず）とを設けて成るものである。板ばね１３に形成された切欠部（図示せず）に固定板が係合し、固定板が小ねじ又は溶着等の固定手段（図示せず）で突出壁（１１）に固定され、それによって板ばね１３の基部が長手方向不動に固定される。
【００２３】
板ばね１３の先端部には合成樹脂製のハーネス支持用のキャップ１５が設けられている。キャップ１５はワイヤハーネス（図示せず）を安定に支持するための凹溝と、板ばね１３に挿入されるスリット部（図示せず）と、スリット部内で板ばね１５の例えば孔部（図示せず）に係合する係止突起（図示せず）とを有している。
【００２４】
板ばね固定部１１の内側に隣接して略環状のハーネス屈曲規制壁１２が基板９と一体に樹脂成形されている。ハーネス屈曲規制壁１２の不要な（ワイヤハーネスに接しない）下端側の部分は切欠されて無駄が省かれている。屈曲規制壁１２によってワイヤハーネスの屈曲最小径が規制され、ワイヤハーネスの過大な屈曲（曲げストレス）が阻止される。
【００２５】
板ばね１３の上面に沿ってワイヤハーネス（図示せず）が湾曲状に配索される。ワイヤハーネスは周壁１０側の固定部（図示せず）にテープ巻きやバンド止め等の手段で固定される。ワイヤハーネスが引っ張られることで板ばね１３が板厚方向に撓む。この際、板ばね１３の先端すなわちハーネス支持キャップ１５の先端は図２の鎖線Ｂの如く共通機能部５の内側で円弧状の軌跡を描き、共通機能部５の外側に突出（露出）しないことが好ましく、これにより共通機能部５の搬送途中等で板ばね１３が外部と干渉することなく安全に保護される。板ばね１３は周壁１０と屈曲規制壁１２との間の空間内を上下に湾曲状に撓む。
【００２６】
車種に応じてスライドドアのスライド量が異なり、ワイヤハーネスの余長（弛み量）も異なるため、板ばね１３は長さ違いのものに変更される場合もあり得る。ワイヤハーネスの余長の長いものには二枚の板ばねを重ね合わせて用いることも可能である（これについては別件で提案する）。
【００２７】
上記の如くベース３の共通機能部５に板ばね１３の固定機能と板ばね撓ませ機能とワイヤハーネスの固定機能とワイヤハーネスの屈曲規制機能とを持たせている。
【００２８】
図２の如くベース３の共通機能部５にベース３の専用機能部６が合体し、後述の固定手段で固定される。図１の如くベース３の専用機能部６は、共通機能部５の基板９に同一平面で続く垂直な基板１６と、共通機能部５の周壁１０に同一面で続く後下がりの傾斜状の周壁１７とを備えている。
【００２９】
基板１６の前部側には直角に交わる端面１８，１９が形成され、下側の水平な端面１９は細幅の突出板部２０の上端を構成している。突出板部２０は基板主体部（符号１６で代用）と同一平面で前向きに突出形成され、基板１６の一部を成す。この直交する端面１８，１９に前記共通機能部５の後端と下端とが接合される。例えば突出板部２０の前端側において周壁１０の下端側にハーネス導出用の開口（スライドドア側にワイヤハーネスを導出させる口部）２１が構成される。周壁１０の一部を切欠してハーネス導出用の口部２１を形成してもよい。
【００３０】
ベース３の専用機能部６は車種（スライドドアの種類）ごとにワイヤハーネスの余長に応じて弛み部を完全に収容できる容積（大きさ）・形状に形成される。スライドドアのスライド量が小さく、ワイヤハーネスの余長が短い場合は、専用機能部６は前後に短く、及び／又は上下に短く（高さが低く）形成され、ワイヤハーネスの余長が長い場合は、専用機能部６は前後に長く、及び／又は上下に短く形成される。
【００３１】
図１において、ベース３の共通機能部５と専用機能部６とに対応（対向）して、カバー４の共通機能部７と専用機能部８とが形成されている。ベース３の専用機能部６よりもカバー４の専用機能部８の方が少し上下方向に短く形成され、カバー４の専用機能部８の基板２２の下端側の部分は外向きに湾曲形成され、ワイヤハーネスを車両ボディ側に向けて湾曲状に滑らかに屈曲させるハーネスガイド部（ハーネスガイド壁）２３として作用する。
【００３２】
カバー４の共通機能部７はベース３の共通機能部５とほぼ同じ大きさに形成されている。カバー４の共通機能部７と専用機能部８とは基板２２，２４と周壁２５，２６とを有し、各基板２２，２４及び各周壁２５，２６は段差なく同一面に接合して後述の固定部で固定される。
【００３３】
カバー４の共通機能部７の基板２２に前記ハーネス屈曲規制壁１２に重なる略環状の補強壁ないし屈曲規制壁（図示せず）を設けたり、補強壁に沿う開口（図示せず）を設けることも可能である。また、ベース３側の周壁１０と共に周壁２５の前端側にハーネス導出用の口部２１を設けることも可能である。
【００３４】
カバー４の共通機能部７は専用機能部８に合体固定され、カバー４はベース３に組付係止される。カバー４の基板２２，２４とベース３の基板９，１６との間にワイヤハーネス移動（摺動）用の空間が形成され、プロテクタ２の下端側にハーネス導出用の横長スリット状の開口２７が形成される。開口２７からワイヤハーネスが車両ボディ側に配索される。
【００３５】
図３は、ベース３及びカバー４の各共通機能部５，７と各専用機能部６，８との固定手段の一形態（図２のＡ−Ａ相当断面図）を示すものである。
【００３６】
カバー４の共通機能部７の基板２２の接合端部側の外側面に縦断面鉤状の差込部２８が突設され、カバー４の専用機能部８の基板２４の接合端部に段差状に突板部２９と爪部３０とが突設され、爪部３０が差込部２８の内側に挿入されて、差込部２８と基板端部２２ａとで挟まれるように保持される。これにより、カバー４の共通機能部７と専用機能部８とが板厚方向（内向き及び外向き）に不動に固定される。
【００３７】
それと同時に、ベース３の共通機能部５の基板９の接合端部の外面側に基板９の半分の肉厚の薄肉の突板部３１が延長形成され、ベース３の専用機能部６の基板１６の接合端部の内面側に同様の薄肉の突板部３２が延長形成され、両突板部３１，３２が相互に噛み合って（板厚方向に接合して）、共通機能部５の内向きの移動と専用機能部６の外向きの移動とがそれぞれ阻止される。
【００３８】
カバー４の共通機能部７とベース３の共通機能部５とは例えば係止突起と係合枠部といった係止手段（図示せず）で相互に係止され、カバー４の専用機能部８とベース３の専用機能部６とは同様の係止手段で相互に係止されるから、上記固定手段２８，３０，３１，３２によって各共通機能部５，７と各専用機能部６，８とは板厚方向に不動に固定される。
【００３９】
カバー４の外側に差込部２８や爪部３０を突出させたのは、カバー４とスライドドアのドアトリムとの間にある程度の空間があって差込部２８や爪部３０がドアトリムに干渉しないからであり、ベース３の固定部（突板部）３１，３２を基板９，１６の板厚の範囲で形成して接合部を平坦にしたのは、固定部３１，３２とドアパネルとの干渉を避けるためである。これらの制限がなければ、ベース３に差込部２８や爪部３０を突設し、カバー４に薄肉の突板部３１，３２を延長形成してもよい。固定部の構造は本形態に限らず、種々の形態を適宜設定可能である。
【００４０】
図４は、ベース３とカバー４の各専用機能部６，８の剛性を高めるべく、例えば基板２４に矩形状の凹部３３と凸部３４を互い違いに形成した実施形態を示すものである。ベース３とカバー４の各専用機能部６，８はスライドドアの開閉に伴うワイヤハーネスの移動（伸縮及び揺動）、特にスライドドアの全閉時及び全閉時近くにおけるワイヤハーネスの引張等によって大きな力を受ける。また、スライドドアの開閉に伴ってワイヤハーネスがハーネスガイド部２３（図１）に沿って前後に揺動する際に、ハーネスガイド部２３に外向きの大きな力が作用する。
【００４１】
これらの力によって専用機能部６，８が変形等しないように、上記凹凸３３，３４を設けたり、専用機能部６，８を合成樹脂材ではなく金属材で形成したりすることが可能である。特にカバー４側の専用機能部８の剛性を増すことがこれらに対して有効である。
【００４２】
凹凸３３，３４は基板２４の板厚の範囲ないしそれに近い範囲で浅く形成することが省スペース化の点で好ましい。勿論、共通機能部５，７にも凹凸３３，３４を設けることは可能である。凹凸３３，３４に代えてリブを格子状に形成することも可能である。専用機能部６，８を金属材で形成する場合はアルミ等の軽量材を用いることが好ましい。金属材に補強用の凹凸３３，３４を形成してもよい。専用機能部６，８と共通機能部５，７とを分割したことで、専用機能部６，８のみの剛性を容易に高めることができる。
【００４３】
図５はスライドドア用給電装置のプロテクタの詳細な構造例を示すものである。上記給電装置１と同様の作用部分（構造はやや異なる）には同一の符号を付して詳細な説明を省略する。
【００４４】
図５のスライドドア用給電装置のプロテクタ２において、符号７はカバーの共通機能部、８はカバーの専用機能部、５はベースの共通機能部、６はベースの専用機能部をそれぞれ示す。
【００４５】
ベース３はカバー４よりも下方にやや長く延長され、カバー４の下端部は横長スリット状のハーネス導出用の開口２７に沿う断面湾曲状のハーネスガイド部２３となっている。カバー４の専用機能部８は略三角形状の主体部分（符号２４で代用）と、下端側の前方に延長された部分４２とで構成され、ハーネスガイド部２３は主体部分２４から延長部４２に連続して形成されている。
【００４６】
また、共通機能部５，７の周壁２５の前下がりの傾斜部にはハーネス導出用の開口２１とベース側のハーネス固定部４３とが設けられている。下側の開口２７からワイヤハーネスが車両ボディ側に配索され、前側の開口２１からワイヤハーネスがスライドドア側に配索される。ハーネス固定部４３にはテープ巻き等でワイヤハーネスが固定される。
【００４７】
ベース３の共通機能部５には略環状のハーネス屈曲規制壁１２が設けられ、屈曲規制壁１２の内側でカバー４の共通機能部７に開口４４が設けられ、屈曲規制壁１２の前側に隣接してベース３の共通機能部５に板ばね固定部１１が設けられ、板ばね固定部１１の垂直なスリット１４内に板ばね（図示せず）の基部が挿着される。ベース５の基板９やカバー４の延長部４２には固定用（ボルト挿通用）の孔部４５が設けられている。ベース３の共通機能部５や専用機能部６の各周壁の傾斜部側にはブラケット４６が突設されている。プロテクタ２はブラケット４６や孔部４５でスライドドアのドアパネルに固定される。
【００４８】
カバー４の共通機能部７は後端部と下端部とで専用機能部８に嵌合している。すなわち、共通機能部７の基板２２の後端部と下端部の各表面に袋状の複数（本形態で各一対）の差込部２８が突設され、専用機能部８の直交する前向き及び上向きの各端部に段差状に突板部２９が延長形成され、突板部２９の先端（前端及び上端）に複数（各一対）の爪部３０が同一平面に突設され、各爪部３０が各差込部２８に挿入され、且つ共通機能部７の後端部と下端部が専用機能部８の各突板部２９の内側に進入することで、カバー４の共通機能部７が専用機能部８に縦横及び板厚方向（三次元方向）の位置ずれやガタ付きなくしっかりと固定されている。
【００４９】
各爪部３０の突出方向は縦横の９０゜方向であり、二次元方向の各爪部３０を同時に且つ簡単に各差込部２８に挿入させるべく、後端側の差込部２８は後端と上端が開放され、下端側の差込部２８は下端と後端が開放されて、それぞれ開口２８ａとなっている。また、ベース３及びカバー４の共通機能部５，７の上端（頂部）４７は平坦に形成されている。それにより、カバー４の共通機能部７を前方から後方にスライドさせてワンタッチで専用機能部８に嵌合させることができる。
【００５０】
ベース３の共通機能部５と専用機能部６とは前後に分割可能であり、共通機能部５の後端の薄肉の突板部３１と専用機能部６の前端の薄肉の突板部３２とが基板９，１６の板厚の範囲で交互に噛み合って固定されている。
【００５１】
ベース３とカバー４の共通機能部５，７同士や専用機能部６，８同士は周壁１０，１７，２５，２６に設けた係止突起や係合枠部といった係止手段（図示せず）で係止可能である。また、専用機能部６，８の基板１６，２４（特にカバー４のハーネスガイド部２３を含む部分）には図４のような剛性形状を採用可能であり、専用機能部６，８又は８のみを金属材で形成して剛性を高めることも可能である。
【００５２】
また、図５の構成とは逆に、カバー４の専用機能部８に突板部２９や爪部３０を設け、カバー４の共通機能部７に差込部２８を設けることも可能である。また、樹脂成形が可能であれば、ワイヤハーネスや板ばね１３の装着性は落ちるものの、プロテクタ２をベース３とカバー４に分離せず、表裏の共通機能部５，７や専用機能部６，８を一体に形成することも可能である。
【００５３】
【発明の効果】
以上の如く、請求項１記載の発明によれば、車種（スライドドアの種類）ごとに共通機能部を共用することで、部品点数が削減され、部品コストの低減や設計工数の削減が可能となる。また、専用機能部のみの大きさを車種ごとのハーネス余長に応じて変更すればよいから、共通機能部をコンパクトに形成でき、プロテクタ全体の小型化が可能となり、これにより、車載性（スライドドアへの組付性）が向上する。
【００５４】
請求項２記載の発明によれば、組付時等に共通機能部内で弾性部材が干渉等から安全に保護されると共に、スライドドアの開閉時に弾性部材が共通機能部と専用機能部との接合部分に引っ掛かることなくスムーズに撓んで、余長吸収が確実に行われる。
【００５５】
請求項３記載の発明によれば、ハーネス屈曲規制壁を共通機能部に設けることで、車種ごとにハーネス屈曲規制機能が共用化され、部品点数及び設計工数の削減とハーネス屈曲規制壁の形状の一定化によるプロテクタのコンパクト化が可能となる。
【００５６】
請求項４記載の発明によれば、ハーネスガイド部が専用機能部に形成されているから、スライドドアの開閉に伴うワイヤハーネスの揺動が引っ掛かりなくスムーズに行われる。
【００５７】
請求項５記載の発明によれば、ハーネス余長吸収空間や断面湾曲状のハーネスガイド部を有する専用機能部が剛性アップされることで、ワイヤハーネスの押圧力等に対する専用機能部の変形等が阻止され、ワイヤハーネスの余長吸収が確実に行われ、スライドドアへの給電の信頼性が向上する。
【００５８】
請求項６記載の発明によれば、プロテクタがベースの共通機能部と専用機能部、カバーの共通機能部と専用機能部という四部品構成となり、プロテクタへのワイヤハーネスの組付性や弾性部材の組付性が向上する。
【００５９】
請求項７記載の発明によれば、共通機能部と専用機能部とを容易に固定及び固定解除でき、組付性及びメンテナンス性が高まる。
請求項８記載の発明によれば、ワンタッチで簡単にプロテクタを組み立てて且つしっかりと固定することができる。
【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の一実施形態の概要を示す分解斜視図である。
【図２】同じくベース側の共通機能部と専用機能部の組立状態を示す正面図である。
【図３】同じくベース側とカバー側の各機能部の固定構造を示す図２のＡ−Ａ相当断面図である。
【図４】専用機能部の剛性構造の一形態を示す斜視図である。
【図５】スライドドア用給電装置のプロテクタの詳細構造例を示す正面図である。
【図６】従来のスライドドア用給電装置を示す分解斜視図である。
【図７】同じくスライドドア用給電装置のドア開け時の作用を示す斜視図である。
【符号の説明】
１　　　　　スライドドア用給電装置
２　　　　　プロテクタ
３　　　　　ベース
４　　　　　カバー
５，７　　　共通機能部
６，８　　　専用機能部
１１　　　　弾性部材固定部
１２　　　　ハーネス屈曲規制壁
１３　　　　板ばね（弾性部材）
２３　　　　ハーネスガイド部
２７　　　　長形の開口
２８　　　　差込部（固定手段）
３０　　　　爪部（固定手段）
３１，３２　薄肉の突板部（固定手段）
３３，３４　凹凸（高剛性形状）[0001]
TECHNICAL FIELD OF THE INVENTION
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power supply device for a slide door including a protector for absorbing slack of a wire harness when the slide door is opened and closed so as to constantly supply power to the slide door of an automobile.
[0002]
[Prior art]
FIGS. 6 and 7 show a power supply device for a sliding door of an automobile previously proposed by the present applicant (see Patent Document 1).
[0003]
The power supply device 51 for a slide door includes a protector 53 made of a synthetic resin for accommodating the wire harness 52 in a curved state, and a metal provided in the protector 53 to urge the wire harness 52 upward (in a direction opposite to the slackness). And a leaf spring (elastic member) 56.
[0004]
The protector 53 includes a base 54 and a cover 55. The base 54 and the cover 55 are locked by locking means (not shown) such as locking projections and engaging frame pieces, and the base 54 is fixed to a metal door panel 58 of a sliding door 57 of an automobile by bolts 59 and locking clips. Fixed at. A door trim (not shown) made of a synthetic resin is attached to the door panel 58, and the protector 53 is located between the door panel 58 and the door trim.
[0005]
The base 54 and the cover 55 include vertical substrates 60 and 61 and peripheral walls 62 and 63 formed around the substrates 60 and 61 (upper side and front and rear). , 63 are vertically overlapped, a space for harness movement (bending) is formed between the substrates 60 and 61, a narrow opening 64 for leading out the harness is formed at the front end of the protector 53, and a harness leading out at the lower end of the protector 53. Opening 65 in the form of a horizontal slit. The base of the leaf spring 56 is fixed to the base 54, and the distal end (free end) of the leaf spring 56 supports the wire harness 52. The base 54 may be provided with a substantially annular bending regulating wall (not shown) for defining the bending diameter of the wire harness 52.
[0006]
One of the wire harnesses 52 is fixed to the opening 64 on the front end side by tape winding or the like and is led out of the opening 64 and connected to an auxiliary machine or a wire harness (not shown) on the slide door side by a connector 66. The other is drawn out from the opening 65 on the lower end side, is routed to the vehicle body 68 side via the crossover portion (space) 67, is fixed by the harness fixing portion 70 near the step 69, and is connected to the wire harness ( (Not shown).
[0007]
When the slide door 57 of FIG. 6 is fully closed, the wire harness 52 is urged upward by the leaf spring 56 while being pulled backward, and is bent with a large radius. At the position where the slide door 57 is slid backward from the fully closed state to a half open state (close to a fully open state) as shown in FIG. 7, the wire harness 52 tends to hang down while bending with a small radius, but the leaf spring 56 is Bias upward to prevent sagging. Even when the slide door 57 is fully opened to fully closed, the wire harness 52 is prevented from hanging down by the same operation as described above. This prevents the wire harness 52 from being pinched between the slide door 57 and the vehicle body 68. The wire harness 52 swings back and forth with the opening and closing of the slide door 57. In FIG. 7, the cover 55 is not shown.
[0008]
[Patent Document 1]
JP 2001-35485 A (pages 9-11, FIGS. 8-13)
[0009]
[Problems to be solved by the invention]
However, in the conventional power supply device 51 for a sliding door, the power supply device 51 is designed as a dedicated component uniformly for each type of the sliding door 57 in consideration of the internal space and the sliding amount of the sliding door 57. Therefore, there is a problem that it is extremely difficult to divert to a slide door of another vehicle, and a lot of design man-hours and parts costs are required. In addition, since the protector 53 has various functions such as accommodation of the wire harness 52, absorption of excess length (slack) by the leaf spring 56, and restriction of sliding and bending of the wire harness 52, the structure is easily enlarged. In such a case, there is a problem that the assembling becomes difficult due to interference with other parts or the like in the sliding door, and that many man-hours are required for designing in order to prevent the interference.
[0010]
In view of the above points, the present invention can improve the versatility to other types of sliding doors, reduce the design man-hours and component costs, and prevent the structure from being enlarged, thereby improving the mounting property to the sliding door. An object of the present invention is to provide a power supply device for a sliding door that can be improved.
[0011]
[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 comprises a protector for accommodating a wire harness in a curved shape, and an elastic member for loosening the wire harness in the protector and for urging the wire harness in the opposite direction. Wherein the protector is divided into a common function unit for accommodating the elastic member and a special function unit other than the common function unit.
With the above configuration, a common function portion is shared for each vehicle type (slide door type), so that at least a portion for fixing the elastic member (fixing function) and a space for flexing the elastic member (harness surplus length absorbing function) are shared. Thus, the number of parts is reduced. In addition, by using a dedicated function unit separately for each vehicle type (sliding door type), it is possible to ensure that the extra length portion in the protector for each vehicle type corresponds to the difference in the extra length (slack length) of the wire harness. It can be accommodated (reliable absorption of extra length). In addition, the size of the common function unit is constant, and the size of the dedicated function unit only needs to be changed according to the extra length for each vehicle model. Therefore, the common function unit can be formed compact, and the overall size of the protector can be reduced. Is possible.
[0012]
According to a second aspect of the present invention, in the power supply device for a slide door according to the first aspect, a bending trajectory on a distal end side of the elastic member is located inside the common function part.
With the above configuration, the distal end of the elastic member is not exposed to the outside when the common function unit is transported or the dedicated function unit is combined with the common function unit, and the elastic member is safely protected from interference or the like. Further, when the wire harness expands and contracts and the elastic member flexes when the slide door is opened and closed, the distal end of the elastic member does not contact (join) the joint (union) portion between the common function portion and the dedicated function portion, The elastic member can smoothly bend.
[0013]
The power supply device for a slide door according to claim 3 is the power supply device for a slide door according to claim 1 or 2, wherein the common function unit includes a substantially annular harness bending restriction wall adjacent to the elastic member fixing unit. Features.
For example, when the sliding door is fully opened with a strong force and the wire harness is bent to a small diameter, the wire harness contacts the harness bending restriction wall and further reduction (bending) is prevented, so that strong bending stress to the wire harness is reduced. Is prevented. By providing such a harness bending control wall in the common function section, the harness bending control function is shared for each vehicle type, and the number of parts and design man-hours can be reduced, and the protector can be downsized by keeping the harness bending control wall constant. It becomes.
[0014]
The power supply device for a sliding door according to claim 4 is the power supply device for a slide door according to any one of claims 1 to 3, wherein the dedicated function unit is a harness lead-out formed over the entire length of the protector. And a harness guide having a curved cross section along the opening.
With the above configuration, the wire harness swings in the sliding door opening / closing direction along the harness guide portion while being drawn out of the opening with the opening / closing of the sliding door. Since the harness guide portion is formed in the dedicated function portion, the swing of the wire harness is smoothly performed without being caught. When there is a joint (joint) between the dedicated function unit and the common function unit, the wire harness is caught by the joint, making it difficult to swing smoothly.
[0015]
The power supply device for a sliding door according to claim 5 is the power supply device for a slide door according to any one of claims 1 to 4, wherein the dedicated function unit is formed of a highly rigid shape or material. And
With the above configuration, the rigidity of the dedicated function unit having the harness excess length absorption space is increased, so that when the wire harness is housed in a curved shape and the excess length is absorbed, the wire harness is pressed by the wire harness and applied to the dedicated function unit. The force is reliably received, so that the deformation of the dedicated function unit is prevented. In addition, when the wire harness swings along the long opening and slides on the harness guide portion having a curved cross section, an outward pressing force acts on the dedicated function portion, but this force is reliably received. As a result, the deformation of the dedicated function section is prevented.
[0016]
A power supply device for a sliding door according to claim 6 is the power supply device for a sliding door according to any one of claims 1 to 5, wherein the protector includes a lockable base and a cover. And a cover having the common function unit and the dedicated function unit, respectively.
With the above configuration, the protector has a four-part configuration such as a common function part and a special function part of the base, a common function part and a special function part of the cover, and a common function part and a special function part of the base, and a common function part of the cover. The dedicated functional units may be joined to each other, the wire harness may be housed in the base, and then the cover may be covered to form the protector. The four-part configuration improves the assemblability of the wire harness and the assemblability of the elastic member.
[0017]
The power supply device for a sliding door according to claim 7 is the power supply device for a sliding door according to any one of claims 1 to 6, wherein the common function unit and the dedicated function unit are detachably fixed by fixing means. It is characterized by having been done.
According to the above configuration, the common function unit and the dedicated function unit can be easily fixed and released, and the assembling property and the maintenance property are improved.
[0018]
The power supply device for a slide door according to claim 8 is the power supply device for a slide door according to claim 7, wherein the common function portion and the dedicated function portion of the cover are fixed by engagement of a claw portion and an insertion portion, The common function portion and the dedicated function portion of the base are fixed by meshing between thin projecting plate portions.
With the above configuration, by inserting the claw portion into the insertion portion, the common function portion and the dedicated function portion of the cover are fixed immovably at least in the plate thickness direction, and the projecting plate portions are joined to each other in the plate thickness direction (engagement). By locking the base and the cover, each common function unit and each dedicated function unit are firmly fixed without play. The base is in contact with the door panel of the sliding door, but by joining the thin-walled protruding portions within the range of the thickness of the base, there is no protrusion, and the base is tightly fixed to the door panel.
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
1 to 3 show an outline of an embodiment of a power supply device for a sliding door according to the present invention.
[0020]
As shown in FIG. 1, the power supply device 1 for a slide door is characterized in that a protector 2 composed of a synthetic resin base 3 and a cover 4 is divided into common function units 5, 7 and dedicated function units 6, 8, respectively. I do. The common function units 5 and 7 are located substantially in the first half of the protector 2, and the dedicated function units 6 and 8 are located substantially in the second half of the protector 2. The common function units 5 and 7 are commonly used for each vehicle type (type of slide door), and the special function units 6 and 8 are exclusively used for each vehicle type.
[0021]
The common function part 5 of the base 3 has a vertical substrate 9 and a peripheral wall 10 descending forward around the substrate 9. The substrate 9 has a leaf spring fixing part (elastic member fixing part) 11 and a substantially annular harness bending restriction wall. The base of a metal leaf spring (elastic member) 13 is fixed to the leaf spring fixing portion 11.
[0022]
As an example, the leaf spring fixing portion 11 includes a slit 14 for inserting a leaf spring on a protruding wall (substituted by reference numeral 11) formed integrally with the substrate 9, and a metal or synthetic resin fixing plate (see FIG. (Not shown)). The fixing plate engages with a notch (not shown) formed in the leaf spring 13, and the fixing plate is fixed to the protruding wall (11) by fixing means (not shown) such as small screws or welding. The base of the leaf spring 13 is fixed immovably in the longitudinal direction.
[0023]
A harness support cap 15 made of a synthetic resin is provided at the tip of the leaf spring 13. The cap 15 has a groove for stably supporting a wire harness (not shown), a slit (not shown) inserted into the leaf spring 13, and a hole (not shown) of the leaf spring 15 in the slit. (See FIG. 1).
[0024]
A substantially annular harness bending restriction wall 12 is resin-molded integrally with the substrate 9 adjacent to the inside of the leaf spring fixing portion 11. Unnecessary (not in contact with the wire harness) lower end side portion of the harness bending restriction wall 12 is cut away to reduce waste. The minimum bending diameter of the wire harness is restricted by the bending restriction wall 12, and excessive bending (bending stress) of the wire harness is prevented.
[0025]
A wire harness (not shown) is arranged in a curved shape along the upper surface of the leaf spring 13. The wire harness is fixed to a fixed portion (not shown) on the side of the peripheral wall 10 by means such as tape winding or banding. When the wire harness is pulled, the leaf spring 13 bends in the thickness direction. At this time, the tip of the leaf spring 13, that is, the tip of the harness support cap 15 draws an arc-shaped trajectory inside the common function part 5 as shown by a chain line B in FIG. 2 and does not protrude (expose) outside the common function part 5. It is preferable that the leaf spring 13 is safely protected without interfering with the outside while the common function unit 5 is being conveyed. The leaf spring 13 bends vertically in the space between the peripheral wall 10 and the bending regulating wall 12.
[0026]
Since the sliding amount of the sliding door differs depending on the vehicle type and the surplus length (slack amount) of the wire harness also differs, the leaf spring 13 may be changed to one having a different length. It is also possible to use two leaf springs stacked on each other for a long wire harness (this will be proposed separately).
[0027]
As described above, the common function portion 5 of the base 3 has the function of fixing the leaf spring 13, the function of bending the leaf spring, the function of fixing the wire harness, and the function of restricting the bending of the wire harness.
[0028]
As shown in FIG. 2, the dedicated function unit 6 of the base 3 is combined with the common function unit 5 of the base 3 and fixed by fixing means described later. As shown in FIG. 1, the dedicated function unit 6 of the base 3 includes a vertical substrate 16 continuing on the same plane as the substrate 9 of the common function unit 5, and a rearwardly inclined inclined peripheral wall continuing on the same surface as the peripheral wall 10 of the common function unit 5. 17 are provided.
[0029]
End faces 18 and 19 that intersect at right angles are formed on the front side of the substrate 16, and the lower horizontal end face 19 forms the upper end of the narrow width projecting plate part 20. The protruding plate portion 20 is formed so as to protrude forward on the same plane as the substrate main portion (substituted by reference numeral 16), and forms a part of the substrate 16. The rear end and the lower end of the common function part 5 are joined to the orthogonal end faces 18 and 19. For example, at the front end side of the protruding plate portion 20, an opening for harness derivation (a port portion for deriving a wire harness to the slide door side) 21 is formed at the lower end side of the peripheral wall 10. A part of the peripheral wall 10 may be cut out to form a harness outlet port 21.
[0030]
The dedicated function portion 6 of the base 3 is formed in a volume (size) and shape capable of completely accommodating the slack portion according to the surplus length of the wire harness for each vehicle type (type of slide door). When the sliding amount of the sliding door is small and the surplus length of the wire harness is short, the special function unit 6 is formed short before and after and / or short vertically (low in height), and when the surplus length of the wire harness is long. The dedicated function part 6 is formed to be long in the front and back and / or short in the up and down direction.
[0031]
In FIG. 1, a common function unit 7 and a special function unit 8 of the cover 4 are formed so as to correspond (oppose) to the common function unit 5 and the special function unit 6 of the base 3. The dedicated function portion 8 of the cover 4 is formed to be slightly shorter in the vertical direction than the dedicated function portion 6 of the base 3, and the lower end portion of the substrate 22 of the dedicated function portion 8 of the cover 4 is formed to be curved outward, The wire harness acts as a harness guide portion (harness guide wall) 23 for smoothly bending the wire harness toward the vehicle body in a curved shape.
[0032]
The common function part 7 of the cover 4 is formed to have substantially the same size as the common function part 5 of the base 3. The common function unit 7 and the dedicated function unit 8 of the cover 4 have substrates 22 and 24 and peripheral walls 25 and 26, and the substrates 22, 24 and the peripheral walls 25 and 26 are joined to the same surface without any step, and will be described later. It is fixed at the fixing part.
[0033]
The substrate 22 of the common function unit 7 of the cover 4 is provided with a substantially annular reinforcing wall or a bending restricting wall (not shown) overlapping the harness bending restricting wall 12 or an opening (not shown) along the reinforcing wall. Is also possible. Further, it is also possible to provide a harness leading-out port 21 on the front end side of the peripheral wall 25 together with the peripheral wall 10 on the base 3 side.
[0034]
The common function unit 7 of the cover 4 is fixedly united with the dedicated function unit 8, and the cover 4 is assembled and locked to the base 3. A space for moving (sliding) the wire harness is formed between the substrates 22 and 24 of the cover 4 and the substrates 9 and 16 of the base 3, and a horizontally long slit-like opening 27 for leading out the harness is provided at the lower end of the protector 2. It is formed. A wire harness is routed from the opening 27 to the vehicle body side.
[0035]
FIG. 3 shows an embodiment (a sectional view corresponding to AA in FIG. 2) of a fixing means for fixing the common function units 5 and 7 and the dedicated function units 6 and 8 of the base 3 and the cover 4.
[0036]
A hook-shaped insertion section 28 having a hook-like longitudinal section is provided on the outer surface of the common function section 7 of the cover 4 on the side of the joint end of the substrate 22, and a step-like shape is formed on the joint end of the substrate 24 of the dedicated function section 8 of the cover 4. The protruding plate portion 29 and the claw portion 30 are protrudingly provided, and the claw portion 30 is inserted inside the insertion portion 28 and held so as to be sandwiched between the insertion portion 28 and the substrate end portion 22a. Thereby, the common function part 7 and the special function part 8 of the cover 4 are fixed immovably in the plate thickness direction (inward and outward).
[0037]
At the same time, a thin projecting plate portion 31 having a half thickness of the substrate 9 is formed on the outer surface side of the joint end portion of the substrate 9 of the common function portion 5 of the base 3 so as to extend. A similar thin protruding plate portion 32 is formed on the inner surface side of the joining end portion so as to extend, and the two protruding plate portions 31 and 32 mesh with each other (join in the plate thickness direction) to move the common function portion 5 inward. The outward movement of the special purpose function unit 6 is prevented.
[0038]
The common function part 7 of the cover 4 and the common function part 5 of the base 3 are mutually locked by locking means (not shown) such as a locking projection and an engagement frame, and the common function part 8 of the cover 4 Since the dedicated function section 6 of the base 3 is mutually locked by the same locking means, the common function sections 5 and 7 and the dedicated function sections 6 and 8 are fixed by the fixing means 28, 30, 31 and 32. Is fixed in the thickness direction.
[0039]
The reason why the insertion portion 28 and the claw portion 30 are projected outside the cover 4 is that there is some space between the cover 4 and the door trim of the sliding door, and the insertion portion 28 and the claw portion 30 do not interfere with the door trim. The reason why the fixing portions (projection plate portions) 31 and 32 of the base 3 are formed in the range of the thickness of the substrates 9 and 16 to make the joint portions flat is that interference between the fixing portions 31 and 32 and the door panel occurs. To avoid. If these restrictions are not applied, the insertion portion 28 and the claw portion 30 may protrude from the base 3 and the thin protruding plate portions 31 and 32 may be formed on the cover 4 to be extended. The structure of the fixing portion is not limited to this embodiment, and various modes can be appropriately set.
[0040]
FIG. 4 shows an embodiment in which, for example, rectangular concave portions 33 and convex portions 34 are alternately formed on the substrate 24 in order to increase the rigidity of the dedicated function portions 6 and 8 of the base 3 and the cover 4. The dedicated function parts 6 and 8 of the base 3 and the cover 4 are moved by the movement (expansion and contraction and swinging) of the wire harness accompanying the opening and closing of the slide door, particularly by pulling the wire harness when the slide door is fully closed and near the fully closed state. Receive great power. Also, when the wire harness swings back and forth along the harness guide 23 (FIG. 1) with opening and closing of the slide door, a large outward force acts on the harness guide 23.
[0041]
It is possible to provide the irregularities 33 and 34 and to form the dedicated function portions 6 and 8 with a metal material instead of a synthetic resin material so that the dedicated function portions 6 and 8 are not deformed by these forces. . In particular, it is effective to increase the rigidity of the dedicated function section 8 on the cover 4 side.
[0042]
It is preferable to form the projections and depressions 33 and 34 shallow in the range of the thickness of the substrate 24 or in a range close thereto, from the viewpoint of saving space. Of course, it is also possible to provide the common function units 5 and 7 with the irregularities 33 and 34. Instead of the irregularities 33 and 34, the ribs can be formed in a lattice shape. When the special function parts 6 and 8 are formed of a metal material, it is preferable to use a lightweight material such as aluminum. Irregularities 33 and 34 for reinforcement may be formed on the metal material. By dividing the dedicated function units 6, 8 and the common function units 5, 7, the rigidity of only the dedicated function units 6, 8 can be easily increased.
[0043]
FIG. 5 shows a detailed structural example of a protector of the power supply device for a sliding door. The same operation parts (the structure is slightly different) as those of the power supply device 1 are denoted by the same reference numerals, and the detailed description is omitted.
[0044]
In the protector 2 of the power supply device for a sliding door shown in FIG. 5, reference numeral 7 denotes a cover common function unit, 8 denotes a cover special function unit, 5 denotes a base common function unit, and 6 denotes a base special function unit.
[0045]
The base 3 is extended slightly below the cover 4, and the lower end of the cover 4 is a harness guide portion 23 having a curved cross section along a horizontally long slit-like opening 27 for leading out a harness. The dedicated function portion 8 of the cover 4 is composed of a substantially triangular main portion (substituted by reference numeral 24) and a portion 42 extending forward at the lower end side, and the harness guide portion 23 is connected from the main portion 24 to the extension portion 42. It is formed continuously.
[0046]
In addition, a harness leading-out opening 21 and a base-side harness fixing portion 43 are provided in the front lowering inclined portion of the peripheral wall 25 of the common function portions 5 and 7. A wire harness is routed from the lower opening 27 to the vehicle body, and a wire harness is routed from the front opening 21 to the slide door. The wire harness is fixed to the harness fixing portion 43 by tape winding or the like.
[0047]
The common function part 5 of the base 3 is provided with a substantially annular harness bending restriction wall 12, an opening 44 is provided in the common function part 7 of the cover 4 inside the bending restriction wall 12, and is adjacent to the front side of the bending restriction wall 12. The leaf spring fixing portion 11 is provided on the common function portion 5 of the base 3, and the base of the leaf spring (not shown) is inserted into the vertical slit 14 of the leaf spring fixing portion 11. The base 9 of the base 5 and the extension 42 of the cover 4 are provided with holes 45 for fixing (for inserting bolts). A bracket 46 protrudes from the common function part 5 and the dedicated function part 6 of the base 3 on the inclined side of each peripheral wall. The protector 2 is fixed to a door panel of a sliding door by a bracket 46 and a hole 45.
[0048]
The common function part 7 of the cover 4 is fitted to the special function part 8 at the rear end and the lower end. That is, a plurality of (in this embodiment, a pair of) bag-shaped insertion portions 28 are protrudingly provided on the respective surfaces of the rear end portion and the lower end portion of the substrate 22 of the common function portion 7, and the orthogonally forward facing and A protruding plate portion 29 is formed to extend stepwise at each end facing upward, and a plurality (each pair) of claw portions 30 project from the front end (front end and upper end) of the protruding plate portion 29 on the same plane. The common function part 7 of the cover 4 is inserted into each insertion part 28 and the rear end and the lower end of the common function part 7 enter the inside of each protruding plate 29 of the special function part 8. 8 is firmly fixed without any displacement or backlash in the vertical and horizontal directions and the thickness direction (three-dimensional direction).
[0049]
The protruding direction of each claw portion 30 is 90 ° in the vertical and horizontal directions. In order to allow each claw portion 30 in the two-dimensional direction to be simultaneously and easily inserted into each of the insertion portions 28, the rear end side insertion portion 28 is provided at the rear end. The upper end is opened, and the lower end side of the insertion portion 28 is opened at the lower end and the rear end to form openings 28a. The upper ends (tops) 47 of the common function portions 5 and 7 of the base 3 and the cover 4 are formed flat. Thereby, the common function part 7 of the cover 4 can be slid from the front to the rear, and can be fitted to the special function part 8 with one touch.
[0050]
The common function part 5 and the special function part 6 of the base 3 can be divided into front and rear, and a thin veneer part 31 at the rear end of the common function part 5 and a thin veneer part 32 at the front end of the special function part 6 are formed on the substrate. 9 and 16 are alternately meshed and fixed in the range of the plate thickness.
[0051]
The common function parts 5, 7 and the special function parts 6, 8 of the base 3 and the cover 4 are connected to each other by locking means (not shown) such as locking projections or engaging frame parts provided on the peripheral walls 10, 17, 25, 26. Can be locked. In addition, the rigid shape as shown in FIG. 4 can be adopted for the substrates 16 and 24 (particularly, the portion including the harness guide portion 23 of the cover 4) of the dedicated function units 6, 8, and only the dedicated function unit 6, 8, or 8 is used. May be formed of a metal material to increase the rigidity.
[0052]
In addition, contrary to the configuration of FIG. 5, it is also possible to provide the protruding plate portion 29 and the claw portion 30 in the dedicated function portion 8 of the cover 4 and provide the insertion portion 28 in the common function portion 7 of the cover 4. Further, if resin molding is possible, the mountability of the wire harness and the leaf spring 13 is reduced, but the protector 2 is not separated into the base 3 and the cover 4 and the front and back common function units 5 and 7 and the dedicated function unit 6 8 can also be formed integrally.
[0053]
【The invention's effect】
As described above, according to the first aspect of the present invention, the number of parts can be reduced by sharing the common function unit for each vehicle type (sliding door type), so that the cost of parts and the number of design steps can be reduced. Become. Also, since only the size of the dedicated function unit needs to be changed according to the surplus length of the harness for each vehicle type, the common function unit can be formed compactly, and the entire protector can be downsized. Door).
[0054]
According to the second aspect of the present invention, the elastic member is safely protected from interference or the like in the common function portion at the time of assembly or the like, and the elastic member joins the common function portion and the dedicated function portion when the slide door is opened and closed. It bends smoothly without being caught on the part, and the extra length is reliably absorbed.
[0055]
According to the third aspect of the present invention, by providing the harness bending restriction wall in the common function part, the harness bending restriction function is shared for each vehicle type, the number of parts and the number of design steps are reduced, and the shape of the harness bending restriction wall is reduced. It is possible to make the protector more compact by making it constant.
[0056]
According to the fourth aspect of the present invention, since the harness guide portion is formed in the dedicated function portion, the swing of the wire harness accompanying opening and closing of the slide door is smoothly performed without being caught.
[0057]
According to the fifth aspect of the present invention, since the rigidity of the dedicated function portion having the harness excess absorption space and the harness guide portion having a curved cross section is increased, the deformation of the dedicated function portion against the pressing force of the wire harness and the like can be prevented. As a result, the extra length of the wire harness is reliably absorbed, and the reliability of power supply to the slide door is improved.
[0058]
According to the invention as set forth in claim 6, the protector has a four-part configuration including a common function part and a dedicated function part of the base, and a common function part and a dedicated function part of the cover, and the assemblability of the wire harness to the protector and the elastic member. The assemblability is improved.
[0059]
According to the seventh aspect of the present invention, the common function unit and the dedicated function unit can be easily fixed and released, and the assembling property and the maintenance property are improved.
According to the eighth aspect of the present invention, the protector can be easily assembled with one touch and firmly fixed.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing an outline of an embodiment of a power supply device for a sliding door according to the present invention.
FIG. 2 is a front view showing an assembled state of a common function unit and a dedicated function unit on the base side.
FIG. 3 is a sectional view corresponding to AA in FIG. 2 showing a fixing structure of each functional unit on the base side and the cover side.
FIG. 4 is a perspective view showing one form of a rigid structure of a dedicated function unit.
FIG. 5 is a front view showing a detailed structural example of a protector of the power supply device for a sliding door.
FIG. 6 is an exploded perspective view showing a conventional power supply device for a sliding door.
FIG. 7 is a perspective view showing the operation of the power supply device for a sliding door when the door is opened.
[Explanation of symbols]
1 Power supply device for sliding door
2 Protector
3 base
4 Cover
5, 7 Common function section
6,8 Dedicated function section
11 Elastic member fixing part
12 Harness bending control wall
13 leaf spring (elastic member)
23 Harness guide
27 Long opening
28 insertion part (fixing means)
30 Claws (fixing means)
31, 32 Thin veneer (fixing means)
33, 34 Unevenness (high rigidity shape)

Claims

In a power supply device for a slide door including a protector for accommodating a wire harness in a curved shape, and an elastic member for urging the wire harness in the protector in the opposite direction, a common function unit for accommodating the elastic member and other components A power supply device for a sliding door, wherein the protector is divided into a dedicated function unit.

The power supply device for a slide door according to claim 1, wherein a bending locus on a tip side of the elastic member is located inside the common function unit.

The power supply device for a slide door according to claim 1, wherein the common function unit includes a substantially annular harness bending restriction wall adjacent to the elastic member fixing unit.

The said special function part is provided with the long opening of the harness derivation formed over the full length of the said protector, and the harness guide part of the cross-section curved along this opening, The Claims 1-3 characterized by the above-mentioned. The power supply device for a sliding door according to any one of the above.

The power supply device for a slide door according to any one of claims 1 to 4, wherein the dedicated function unit is formed of a highly rigid shape or material.

The said protector is comprised by the base and cover which can be locked, and this base and cover have the said common function part and the said special function part, respectively, The Claim 1 characterized by the above-mentioned. The power supply device for a slide door according to claim 1.

The power supply device for a slide door according to any one of claims 1 to 6, wherein the common function unit and the dedicated function unit are detachably fixed by fixing means.

The common function part and the special function part of the cover are fixed by the engagement of the claw part and the insertion part, and the common function part and the special function part of the base are fixed by the engagement between the thin projecting plate parts. The power supply device for a sliding door according to claim 7, wherein: