JP4217653B2 - Electrical junction box harness lead-out structure - Google Patents

Electrical junction box harness lead-out structure Download PDF

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JP4217653B2
JP4217653B2 JP2004114178A JP2004114178A JP4217653B2 JP 4217653 B2 JP4217653 B2 JP 4217653B2 JP 2004114178 A JP2004114178 A JP 2004114178A JP 2004114178 A JP2004114178 A JP 2004114178A JP 4217653 B2 JP4217653 B2 JP 4217653B2
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harness lead
rib
protector
harness
lower cover
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JP2005304135A (en
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一弘 池田
邦彦 竹内
雅史 浦
陽介 岡本
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Toyota Auto Body Co Ltd
Yazaki Corp
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Yazaki Corp
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Description

本発明は、電気接続箱のロアカバーにハーネス導出用のプロテクタを連結させる電気接続箱のハーネス導出構造に関するものである。   The present invention relates to a harness lead-out structure for an electric connection box in which a harness lead-out protector is coupled to a lower cover of the electric connection box.

図６は、従来の電気接続箱のハーネス導出構造の一形態を示すものである（特許文献１参照）。   FIG. 6 shows one form of a conventional harness connection structure for an electrical junction box (see Patent Document 1).

この電気接続箱５１は、合成樹脂製のメインカバー５２とアンダカバー５３とアッパカバー（図示せず）とを備えるものであり、メインカバー側の電気部品であるリレーやヒューズやヒュージブルリンクや、接続部品であるコネクタや端子台といった各種部品に接続される各電線をワイヤハーネス５４としてアンダカバー５３の垂直な側壁５５の開口５６から外部に導出させる。   The electrical connection box 51 includes a main cover 52, an under cover 53, and an upper cover (not shown) made of synthetic resin, and relays, fuses, fusible links, etc., which are electrical components on the main cover side, Each electric wire connected to various components such as connectors and terminal blocks, which are connecting components, is led out to the outside from the opening 56 in the vertical side wall 55 of the under cover 53 as a wire harness 54.

ハーネス導出用の開口５６はアンダカバー５３のほぼ両側に二つ設けられ、各開口５６からワイヤハーネス５４が二手に分岐されて導出される。開口５６には合成樹脂製の半割り状のプロテクタ５７の垂直な基板部５８がスライド式に嵌合され、プロテクタ５７に沿ってワイヤハーネス５４が案内されつつ導出方向が規定される。   Two harness lead-out openings 56 are provided on substantially both sides of the under cover 53, and the wire harness 54 is bifurcated and led out from each opening 56. A vertical substrate 58 of a half-shaped protector 57 made of synthetic resin is slidably fitted into the opening 56, and the lead-out direction is defined while the wire harness 54 is guided along the protector 57.

本例のアンダカバー５３はブラケット５９で車両ボディ等に固定される。例えばエンジンルーム等に電気接続箱５１が配置される場合は防水機構が必要で、プロテクタ５７もロアカバー側の半割り状のプロテクタ（図示せず）と接合して略筒状となる（例えば特許文献２参照）。   The under cover 53 of this example is fixed to a vehicle body or the like with a bracket 59. For example, when the electrical junction box 51 is disposed in an engine room or the like, a waterproof mechanism is necessary, and the protector 57 is joined to a half-shaped protector (not shown) on the lower cover side to form a substantially cylindrical shape (for example, Patent Documents). 2).

また、電気接続箱用ではないが、特許文献３には、図７に示すようなハーネスプロテクタが記載されている。このハーネスプロテクタ６１はワイヤハーネス６２をＴ字状に分岐させるものであり、合成樹脂製の一対の略Ｔ字樋状の分割プロテクタ６３を接合させると共に、係止手段６４で係止させて構成される。   Moreover, although it is not for electrical junction boxes, Patent Document 3 describes a harness protector as shown in FIG. The harness protector 61 branches the wire harness 62 in a T shape, and is constructed by joining a pair of substantially T-shaped split protectors 63 made of synthetic resin and locking them by a locking means 64. The

各分割プロテクタ６３の内面には開口部６５の近傍において合成樹脂製のコルゲートチューブ６６に対する係止リブ（図示せず）が設けられ、係止リブがコルゲートチューブ６６の周溝６６ａに係合することでワイヤハーネス６２を固定している。コルゲートチューブ６６は各電線６７を覆って保護すると共に、周状の凹凸６６ａ，６６ｂによって屈曲性を付与している。
特開平８−３２２１２８号公報（第３〜４頁、図１） 特開２０００−１６６０５８号公報（第３〜４頁、図１） 特開平９−２９４３２０号公報（図１０） A locking rib (not shown) for the corrugated tube 66 made of synthetic resin is provided on the inner surface of each divided protector 63 in the vicinity of the opening 65, and the locking rib engages with the circumferential groove 66 a of the corrugated tube 66. The wire harness 62 is fixed. The corrugated tube 66 covers and protects the electric wires 67 and is given flexibility by the circumferential irregularities 66a and 66b.
JP-A-8-322128 (pages 3-4, FIG. 1) JP 2000-166058 A (3rd to 4th pages, FIG. 1) JP-A-9-294320 (FIG. 10)

しかしながら、従来の電気接続箱のハーネス導出構造（図６）にあっては、ワイヤハーネス５４をロアカバー５３の垂直な側壁５５から外部に導出させるために、水滴がハーネス導出用の開口５６からロアカバー内に浸入しやすいという問題があった。また、防水性を高めるにあたっては、ロアカバーのハーネス導出部にプロテクタを容易に且つ確実に固定させることが必要であった。   However, in the conventional harness lead-out structure for the electrical junction box (FIG. 6), in order to lead the wire harness 54 to the outside from the vertical side wall 55 of the lower cover 53, the water droplets enter the lower cover from the harness lead-out opening 56. There was a problem that it was easy to penetrate. Moreover, in order to improve waterproofness, it was necessary to fix a protector easily and reliably to the harness derivation part of a lower cover.

本発明は、上記した点に鑑み、ロアカバーとプロテクタとの嵌合部からの水の浸入を防止し、しかも、プロテクタをロアカバーに容易に且つ確実に固定させることのできる電気接続箱のハーネス導出構造を提供することを目的とする。   In view of the above, the present invention prevents the ingress of water from the fitting portion between the lower cover and the protector, and also allows the protector to be easily and securely fixed to the lower cover. The purpose is to provide.

上記目的を達成するために、本発明の請求項１に係る電気接続箱のハーネス導出構造は、電気接続箱のロアカバーの底壁に管状のハーネス導出部が設けられ、該ハーネス導出部に外側からワイヤハーネス規制用のプロテクタが嵌合され、該プロテクタは、該ハーネス導出部のハーネス導出方向に対して外側に屈曲した屈曲部を有し、且つ底部側のヒンジを支点に該ハーネス導出部の径方向に分割可能で且つ相互に係止可能に形成され、
該ハーネス導出部が外側に全周に渡るリブを有し、該ハーネス導出部に対する該プロテクタの一方の分割嵌合部と他方の分割嵌合部とが内周に、該リブに対する嵌合用のリブを有し、該一方の分割嵌合部は半周に渡る長いリブを有し、該他方の分割嵌合部は中央側に短いリブを有して、該一方の分割嵌合部の該長いリブが先に該ハーネス導出部のリブに嵌合し、次いで該他方の分割嵌合部が回動しつつ該他方の分割嵌合部の短いリブが該ハーネス導出部のリブに嵌合することを特徴とする。 In order to achieve the above object, a harness lead-out structure for an electrical junction box according to claim 1 of the present invention is provided with a tubular harness lead-out portion on the bottom wall of the lower cover of the electrical junction box, and the harness lead-out portion is provided from the outside. A protector for restricting a wire harness is fitted, the protector has a bent portion bent outward with respect to the harness lead-out direction of the harness lead-out portion, and the diameter of the harness lead-out portion with a hinge on the bottom side as a fulcrum Formed to be separable in directions and lockable to each other,
The harness lead-out portion has a rib extending over the entire circumference on the outer side, and one split fitting portion and the other split fitting portion of the protector with respect to the harness lead-out portion are on the inner periphery, and a rib for fitting with the rib The one split fitting portion has a long rib extending over a half circumference, and the other split fitting portion has a short rib on the center side, and the long rib of the one split fitting portion that but that fits into the rib of the harness lead-out portion above, then a short rib divisions fitting portion of said other split fitting portion of said other are being rotated is fitted into the ribs of the harness lead-out portion Features.

上記構成により、プロテクタを分割した状態でロアカバーのハーネス導出部に嵌合することで、ロアカバーへのプロテクタの連結が行われる。ロアカバーのハーネス導出部が外側からプロテクタの嵌合部で覆われ、飛水した水がプロテクタの嵌合部にかかり、ロアカバーのハーネス導出部には直接飛水することがない。また、万一、プロテクタの屈曲部内に水が浸入した場合でも、プロテクタが屈曲しているから、ロアカバーのハーネス導出部へは水が達しにくい。電気接続箱内のワイヤハーネスはロアカバーのハーネス導出部からプロテクタの屈曲部を経て外部に導出される。
また、ロアカバーのハーネス導出部の外周のリブの間の凹溝にプロテクタの両分割嵌合部のリブが嵌合する。これにより、ロアカバーとプロテクタとがしっかりと連結される。
一方の分割嵌合部がロアカバーのハーネス導出部に径方向に平行移動で嵌合され、一方の分割嵌合部の長いリブがロアカバーのハーネス導出部のリブ間の凹溝にスムーズ且つしっかりと確実に係合し、次いで、他方の分割嵌合部が回動されつつロアカバーのハーネス導出部に嵌合され、他方の分割嵌合部の中央側の短いリブがロアカバーのハーネス導出部の周上のリブに干渉することなく、スムーズ且つ確実に凹溝に係合する。これにより、プロテクタの嵌合部がロアカバーのハーネス導出部にスムーズ且つ確実に連結される。 With the above configuration, the protector is connected to the lower cover by being fitted to the harness lead-out portion of the lower cover in a state where the protector is divided. The harness lead-out portion of the lower cover is covered with the fitting portion of the protector from the outside, and the water that has splashed is applied to the fitting portion of the protector and does not directly fly to the harness lead-out portion of the lower cover. Even if water enters the bent portion of the protector, the protector is bent, so that it is difficult for water to reach the harness lead-out portion of the lower cover. The wire harness in the electrical junction box is led out from the harness lead-out part of the lower cover through the bent part of the protector.
Further, the ribs of the split fitting portions of the protector are fitted into the concave grooves between the outer peripheral ribs of the harness lead-out portion of the lower cover. Thereby, a lower cover and a protector are connected firmly.
One split fitting part is fitted to the harness lead-out part of the lower cover by parallel translation in the radial direction, and the long rib of one split fitting part is smoothly and firmly secured in the concave groove between the ribs of the harness lead-out part of the lower cover Then, the other split fitting part is fitted to the harness lead-out part of the lower cover while the other split fitting part is rotated, and the short rib on the center side of the other split fitting part is on the circumference of the harness lead-out part of the lower cover Engage smoothly and reliably with the groove without interfering with the rib. Thereby, the fitting part of a protector is smoothly and reliably connected with the harness derivation | leading-out part of a lower cover.

請求項２に係る電気接続箱のハーネス導出構造は、請求項１記載の電気接続箱のハーネス導出構造において、前記他方の分割嵌合部のリブに、前記ハーネス導出部のリブに対する逃がし用の面取が形成されたことを特徴とする。 The harness lead-out structure for the electrical junction box according to claim 2 is the harness lead-out structure for the electrical junction box according to claim 1 , wherein the rib of the other split fitting portion has a relief surface for the rib of the harness lead-out portion. It is characterized in that a handle is formed.

上記構成により、他方の分割嵌合部をロアカバーのハーネス導出部に嵌合する際に、リブの面取がロアカバーのハーネス導出部のリブに干渉することなくスムーズに凹溝内に係合する。これにより、他方の分割嵌合部の嵌合作業性が一層向上する。   With the above configuration, when the other divided fitting portion is fitted to the harness lead-out portion of the lower cover, the chamfer of the rib smoothly engages in the concave groove without interfering with the rib of the harness lead-out portion of the lower cover. Thereby, the fitting workability | operativity of the other division | segmentation fitting part improves further.

請求項３に係る電気接続箱のハーネス導出構造は、請求項１又は２記載の電気接続箱のハーネス導出構造において、前記一方の分割嵌合部のリブが直角な断面矩形状に形成されたことを特徴とする。 The harness lead-out structure for the electrical junction box according to claim 3 is the harness lead-out structure for the electrical junction box according to claim 1 or 2 , wherein the ribs of the one split fitting portion are formed in a rectangular shape with a right angle. It is characterized by.

上記構成により、一方の分割嵌合部をロアカバーのハーネス導出部に径方向に平行移動で嵌合した際に、一方の分割嵌合部のリブとロアカバーのハーネス導出部の凹溝とが隙間やガタ付きなくしっかりと嵌合し、嵌合強度が高まる。   With the above configuration, when one split fitting portion is fitted to the harness lead-out portion of the lower cover by parallel translation in the radial direction, a gap between the rib of one split fitting portion and the concave groove of the harness lead-out portion of the lower cover Fits firmly without backlash, increasing fitting strength.

請求項１記載の発明によれば、プロテクタによってロアカバーのハーネス導出部への直接の飛水が防止されるから、防水性が高まり、電気的なリークや錆等に対する電気接続箱内の経時的品質が向上する。また、プロテクタを分割してロアカバーに容易に嵌合させることができ、ロアカバーへのプロテクタの組付性すなわち電気接続箱の組立性が向上する。   According to the first aspect of the present invention, since the protector prevents the direct water flow to the harness lead-out portion of the lower cover, the waterproof property is enhanced, and the quality over time in the electric junction box against electrical leakage, rust, etc. Will improve. Further, the protector can be divided and easily fitted to the lower cover, and the assembling property of the protector to the lower cover, that is, the assembling property of the electric junction box is improved.

また、ロアカバーとプロテクタとをリブ同士の嵌合によってしっかりと連結させることができ、ロアカバーからのプロテクタの外れが防止される。 Further, the lower cover and the protector can be firmly connected by fitting the ribs, and the protector is prevented from being detached from the lower cover.

また、プロテクタをロアカバーに簡単且つ確実に連結させることができ、プロテクタの組付性が一層向上すると共に、一方の分割嵌合部の長いリブによって嵌合強度が高まり、ロアカバーからのプロテクタの外れが確実に防止される。 In addition, the protector can be easily and reliably connected to the lower cover, and the assembling property of the protector is further improved, and the fitting strength is increased by the long rib of one split fitting portion, so that the protector is detached from the lower cover. It is surely prevented.

請求項２記載の発明によれば、他方の分割嵌合部をロアカバーのハーネス導出部に一層スムーズに嵌合させることができ、プロテクタの組付性が一層向上する。 According to the second aspect of the present invention, the other divided fitting portion can be more smoothly fitted to the harness lead-out portion of the lower cover, and the assemblability of the protector is further improved.

請求項３記載の発明によれば、一方の分割嵌合部がロアカバーのハーネス導出部にガタ付きなく強固に嵌合し、ロアカバーに対するプロテクタの連結強度が高まり、ロアカバーからのプロテクタの外れが一層確実に防止される。 According to the third aspect of the present invention, the one split fitting portion is firmly fitted to the harness lead-out portion of the lower cover without looseness, the connection strength of the protector to the lower cover is increased, and the protector is more reliably detached from the lower cover. To be prevented.

図１は、本発明に係る電気接続箱のハーネス導出構造の一実施形態を示すものである。   FIG. 1 shows an embodiment of a harness lead-out structure for an electrical junction box according to the present invention.

この電気接続箱１は、合成樹脂製のメインカバー２とロアカバー３とアッパカバー４と、ロアカバー３の底部に設けられた合成樹脂製の分割式のプロテクタ５とを備えたものであり、メインカバー２内に装着された各種電気部品やコネクタ等から導出される各電線（ワイヤハーネス６）は、略Ｔ字状のプロテクタ５で二方向に分岐して外部に導出されている。   The electrical junction box 1 includes a synthetic resin main cover 2, a lower cover 3, an upper cover 4, and a synthetic resin split type protector 5 provided at the bottom of the lower cover 3. Each electric wire (wire harness 6) led out from various electrical components and connectors mounted in 2 is branched in two directions by a substantially T-shaped protector 5 and led out to the outside.

メインカバー２は前後左右の側壁でなる矩形筒状の外周壁８と、外周壁８の内面に直交する枠状の部品装着壁（図示せず）とを備え、外周壁８にロアカバー３の係合部９に対する係止部（内側に爪部を有する可撓性の係止片）１０が設けられ、内側の部品装着壁にはリレーやヒュージブルリンクといった電気部品が直接装着されたり、合成樹脂製のリレーブロックやヒューズブロック等を介して間接的に装着されたり、コネクタブロックを介して複数のコネクタが装着されたりする。   The main cover 2 includes a rectangular cylindrical outer peripheral wall 8 formed of front, rear, left and right side walls and a frame-shaped component mounting wall (not shown) orthogonal to the inner surface of the outer peripheral wall 8. A locking portion (flexible locking piece having a claw portion on the inside) 10 is provided for the joint portion 9, and an electrical component such as a relay or fusible link is directly mounted on the inner component mounting wall, or a synthetic resin It is mounted indirectly via a relay block, a fuse block, etc., or a plurality of connectors are mounted via a connector block.

リレーやヒュージブルリンク等の部品の各端子には端子付き電線が接続され、コネクタの各端子には電線が圧着等で接続され、各電線が集められてロアカバー３をほぼ上下に（正確には漏斗状に集束されつつ）通過し、ロアカバー３の中央部分でワイヤハーネス６としてプロテクタ５から水平な二方向に導出されている。   Wires with terminals are connected to the terminals of components such as relays and fusible links, and the wires are connected to the terminals of the connector by crimping or the like. And is led out from the protector 5 in two horizontal directions as a wire harness 6 at the center portion of the lower cover 3.

プロテクタ５は前後一対のハーネス導出口１１を有して、ワイヤハーネス６を前後（電気接続箱の長手方向）に分岐させている。ハーネス導出口１１は水平な短い管部（屈曲部）１２，１３に設けられ、各管部１２，１３は垂直な短い管部（嵌合部）１４から直交方向に屈曲して続いている。水平な管部１２，１３の全長は接続箱本体１５の前後長よりも短く設定されている。接続箱本体１５はメインカバー２とロアカバー３とアッパカバー４とで構成されている。   The protector 5 has a pair of front and rear harness outlets 11 and branches the wire harness 6 back and forth (longitudinal direction of the electrical junction box). The harness outlet 11 is provided in the horizontal short pipe parts (bent parts) 12 and 13, and each pipe part 12 and 13 is bent from the vertical short pipe part (fitting part) 14 in the orthogonal direction and continues. The total length of the horizontal pipe portions 12 and 13 is set to be shorter than the longitudinal length of the junction box main body 15. The junction box main body 15 includes a main cover 2, a lower cover 3, and an upper cover 4.

プロテクタ５から水平に導出されたワイヤハーネス６は例えば接続箱本体１５の側面１６に沿って上向きに垂直に配索され、アッパカバー４側で再度水平方向に配索される。   For example, the wire harness 6 led out horizontally from the protector 5 is routed vertically upward along the side surface 16 of the junction box main body 15 and is again routed in the horizontal direction again on the upper cover 4 side.

メインカバー２とアッパカバー４とは可撓性のアーム４５と突起２１とで係止されている。メインカバー２のブラケット２２で電気接続箱１が車両ボディ等に固定される。   The main cover 2 and the upper cover 4 are locked by a flexible arm 45 and a protrusion 21. The electrical junction box 1 is fixed to the vehicle body or the like by the bracket 22 of the main cover 2.

プロテクタ５はロアカバー３の底部に配置されているから、上からの水がかかり難く、また、管部１２，１３のハーネス導出口１１は円形でワイヤハーネス６に密着しているから、ハーネス導出口１１からの水の浸入も生じにくい。万一プロテクタ内に水が入っても、プロテクタ底部に設けた小孔２３から水が落下して（排出されて）、上側の接続箱本体１５内への水や塵の侵入は確実に防止される。   Since the protector 5 is disposed at the bottom of the lower cover 3, it is difficult for the water from the top to be applied thereto, and the harness outlet 11 of the pipe portions 12 and 13 is circular and is in close contact with the wire harness 6. Intrusion of water from 11 is difficult to occur. Even if water enters the protector, the water drops (discharges) from the small hole 23 provided at the bottom of the protector, and water and dust can be reliably prevented from entering the upper connection box body 15. The

プロテクタ５はロアカバー３のほぼ中央の下向きの管部（ハーネス導出部）４１に回動自在に連結されている。   The protector 5 is rotatably connected to a downward pipe portion (harness lead-out portion) 41 at the substantially center of the lower cover 3.

図２はロアカバー３を示すものであり、ロアカバー３の底壁３８に管部４１が下向きに突出形成され、管部４１の外周に上下一対のリブ４２が全周に渡って環状に設けられ、上下のリブ４２の間に凹溝４３が全周に渡って形成されている。リブ４２に分割式のプロテクタ５の垂直な管部１４の内周部が係合するようになっている。図２のロアカバー３は図１の短辺側の壁部１９側から見たものである。図２で符号９はメインカバー２に対する係合部を示している。   FIG. 2 shows the lower cover 3, a pipe portion 41 is formed to project downward on the bottom wall 38 of the lower cover 3, and a pair of upper and lower ribs 42 are provided on the outer periphery of the pipe portion 41 in an annular shape over the entire circumference. A concave groove 43 is formed over the entire circumference between the upper and lower ribs 42. The rib 42 is adapted to engage with the inner peripheral portion of the vertical pipe portion 14 of the split protector 5. The lower cover 3 in FIG. 2 is viewed from the side of the wall 19 on the short side in FIG. In FIG. 2, reference numeral 9 indicates an engaging portion for the main cover 2.

図３〜図４は分割式のプロテクタ５を示すものであり、プロテクタ５は底部中央の薄肉のヒンジ２４（図４）を介して開閉自在に連結されている。左右一対の分割プロテクタ２５，２６はほぼ対称に形成され、一方の分割プロテクタ２５の係止枠片２８と他方の分割プロテクタ２６の係合爪２７とで係止される。   3 to 4 show a split type protector 5. The protector 5 is connected to be openable and closable via a thin hinge 24 (FIG. 4) at the center of the bottom. The pair of left and right split protectors 25, 26 are formed substantially symmetrically and are locked by the locking frame piece 28 of one split protector 25 and the engaging claw 27 of the other split protector 26.

図３の如くプロテクタ５の形状は垂直方向の大径で有底の管部１４と水平方向の小径な筒状の管部１２，１３とを直交させたような形状であり、垂直な管部１４の開口内にロアカバー３（図１）が連結され、水平な管部１３の開口内にワイヤハーネス６（図１）が固定される。   As shown in FIG. 3, the shape of the protector 5 is such that the large-bore vertical tube portion 14 and the horizontal small-tube tube portions 12 and 13 are perpendicular to each other. The lower cover 3 (FIG. 1) is connected to the opening 14, and the wire harness 6 (FIG. 1) is fixed to the opening of the horizontal pipe portion 13.

垂直な管部１４には開口端の鍔部（リブ）３２，３２’と開口内の二条のリブ２９，３０、２９’，３０’が対向して周方向に設けられ、水平な管部１３の先端内側には三条のリブ４６が周方向に設けられている。各リブ２９，３０，３２、２９’，３０’，３２’、４６の間には各凹溝３１，３１’，４７がそれぞれ形成されている。 The vertical pipe part 14 is provided with flanges (ribs) 32, 32 'at the opening ends and two ribs 29, 30, 29', 30 'in the opening in the circumferential direction so as to face the horizontal pipe part 13. Three ribs 46 are provided in the circumferential direction on the inner side of the tip. Recessed grooves 31 , 31 ', 47 are formed between the ribs 29, 30, 32, 29', 30 ', 32', 46, respectively.

垂直な管部１４は半割り状の一対の分割管部（分割嵌合部）１４ａ，１４ｂで構成される。一方の分割管部１４ａにはリブ２９，３０が略半円状に長く形成され、他方の分割管部１４ｂにはリブ２９’，３０’が半円よりも短い円弧状に形成されている。   The vertical pipe part 14 is composed of a pair of split pipe parts (split fitting parts) 14a and 14b. The ribs 29 and 30 are formed in a substantially semicircular shape on one divided tube portion 14a, and the ribs 29 'and 30' are formed in an arc shape shorter than the semicircle on the other divided tube portion 14b.

リブ２９，３０は一方の分割管部１４ａの内周面の一端から他端にかけて半周に渡って形成され、リブ２９，３０の一端２９ａ，３０ａと他端２９ｂ，３０ｂは分割管部１４ａの一端と他端とに一致している。また、リブ２９’，３０’は他方の分割管部１４ｂの中央部とその近傍に形成され、他方の分割管部１４ｂの一端及び他端とリブ２９’，３０’の一端２９ａ’，３０ａ’及び他端２９ｂ’，３０ｂ’との間にはそれぞれ分割管部１４ｂの内周面４８のみが位置している。   The ribs 29 and 30 are formed over a half circumference from one end to the other end of the inner peripheral surface of one split pipe portion 14a, and one end 29a and 30a and the other end 29b and 30b of the rib 29 and 30 are one end of the split pipe portion 14a. And the other end. The ribs 29 'and 30' are formed at and near the center of the other divided tube portion 14b, and one end and the other end of the other divided tube portion 14b and one ends 29a 'and 30a' of the ribs 29 'and 30'. Further, only the inner peripheral surface 48 of the dividing pipe portion 14b is located between the other ends 29b 'and 30b'.

他方の分割管部１４ｂにおける上側のリブ２９’にはその下半部にテーパ状の面取２９ｃ’が形成されている。各分割管部１４ａ，１４ｂの開口端の鍔部３２，３２’はそれぞれ各分割管部１４ａ，１４ｂの一端から他端にかけて半円状に形成され、各鍔部３２，３２’の下半部にはテーパ状の面取３２ａ，３２ａ’が形成されている。   A tapered chamfer 29c 'is formed in the lower half of the upper rib 29' of the other divided tube portion 14b. The flange portions 32 and 32 ′ at the open ends of the divided tube portions 14a and 14b are formed in a semicircular shape from one end to the other end of the divided tube portions 14a and 14b, respectively, and the lower half portions of the flange portions 32 and 32 ′. Are formed with tapered chamfers 32a and 32a '.

図５はロアカバー３の管部４１に分割式のプロテクタ５の管部１４を連結する状態（方法）を示すものであり、先ず、半周に渡る長いリブ２９，３０を有する一方の分割管部１４ａがロアカバー３の管部４１の左半部（半周部）に嵌合され、次いで、円弧状の短いリブ２９’，３０’を有する他方の分割管部１４ｂが矢印Ａの如くヒンジ２４（図４）を支点に回動されつつロアカバー３の管部１４の右半部（半周部）に嵌合されて、両分割管部１４ａ，１４ｂが合体する。   FIG. 5 shows a state (method) in which the pipe portion 14 of the split type protector 5 is connected to the pipe portion 41 of the lower cover 3. First, one divided pipe portion 14 a having long ribs 29 and 30 over a half circumference. Is fitted into the left half (half circumference) of the tube portion 41 of the lower cover 3, and the other divided tube portion 14b having the short arc-shaped ribs 29 'and 30' is hinged as shown by the arrow A (FIG. 4). ) And the right half part (half circumference part) of the pipe part 14 of the lower cover 3, and the two divided pipe parts 14 a and 14 b are combined.

ロアカバー３の管部４１に対して、長いリブ２９，３０を有する一方の分割管部１４ａは径方向に平行移動して組み付けられ、短いリブ２９’，３０’を有する他方の分割管部１４ｂは径方向に回動しつつ組み付けられる。他方の分割管部１４ｂのリブ２９’，３０’が短く形成されているから、回動して組み付けた場合に他方の分割管部１４ｂのリブ２９’，３０’がロアカバー３の管部４１のリブ４２に干渉することなく、スムーズに嵌合される。他方の分割管部１４ｂの中間のリブ２９’の回動軌跡はロアカバー３の管部４１のリブ間の凹溝４３に一致するようになっている。   One split tube portion 14a having long ribs 29 and 30 is assembled in parallel with the pipe portion 41 of the lower cover 3 in the radial direction, and the other split tube portion 14b having short ribs 29 'and 30' is assembled. It is assembled while rotating in the radial direction. Since the ribs 29 ′ and 30 ′ of the other divided tube portion 14 b are formed short, the ribs 29 ′ and 30 ′ of the other divided tube portion 14 b are formed on the tube portion 41 of the lower cover 3 when assembled by turning. The ribs 42 are smoothly fitted without interfering with the ribs 42. The turning trajectory of the intermediate rib 29 ′ of the other divided tube portion 14 b coincides with the concave groove 43 between the ribs of the tube portion 41 of the lower cover 3.

他方の分割管部１４ｂの開口端の鍔部３２’はロアカバー３の管部４１の上側のリブ４２の上面側に沿って係合し、他方の分割管部１４ｂの中間のリブ２９’はロアカバー３の管部４１の上下のリブ４２の間の凹溝４３に係合し、他方の分割管部１４ｂの下側のリブ３０’はロアカバー３の管部４１の下側のリブ４２の下側面に沿って係合する。これは一方の分割管部１４ａにおいても同様である。   The flange portion 32 'at the open end of the other divided tube portion 14b is engaged along the upper surface side of the upper rib 42 of the tube portion 41 of the lower cover 3, and the intermediate rib 29' of the other divided tube portion 14b is the lower cover. 3 is engaged with the concave groove 43 between the upper and lower ribs 42 of the pipe portion 41, and the lower rib 30 ′ of the other divided pipe portion 14b is the lower side surface of the rib 42 below the pipe portion 41 of the lower cover 3 Engage along. The same applies to the one split pipe portion 14a.

但し、他方の分割管部１４ｂの中間のリブ２９’には下半部にテーパ状の面取２９ｃ’が形成されているから、回動組付に際して、中間のリブ２０’がロアカバー３の管部４１の下側のリブ４２に干渉することなく、スムーズに嵌合される。この構成及び作用は他方の分割管部１４ｂの開口端の鍔部３２’においても同様である。   However, since the intermediate rib 29 ′ of the other divided tube portion 14b is formed with a tapered chamfer 29c ′ in the lower half portion, the intermediate rib 20 ′ is formed in the tube of the lower cover 3 during the rotation assembly. The fitting is smoothly performed without interfering with the lower rib 42 of the portion 41. This configuration and operation are the same in the flange portion 32 'at the open end of the other divided tube portion 14b.

一方の分割管部１４ａの各リブ２９，３０（特に中間のリブ２９）は面取のない直角な断面矩形状に形成されているから、ロアカバー３の管部４１のリブ４２やリブ間の凹溝４３にしっかりと隙間なく嵌合し、これによって、ロアカバー３の管部４１に対する合体後のプロテクタ５の管部１４の嵌合力が強化され、ロアカバー３からのプロテクタ５の外れが防止される。   Since the ribs 29 and 30 (particularly the intermediate rib 29) of the one divided pipe portion 14a are formed in a rectangular section having a right angle without chamfering, the ribs 42 of the pipe portion 41 of the lower cover 3 and the recesses between the ribs are formed. The groove 43 is firmly fitted with no gap, whereby the fitting force of the tube portion 14 of the protector 5 after the uniting with the tube portion 41 of the lower cover 3 is strengthened, and the protector 5 is prevented from coming off from the lower cover 3.

図３，図４において、プロテクタ５の水平な管部１３内のリブ４６はワイヤハーネス外周の保護チューブであるコルゲートチューブの凹溝４９（図１）に係合してコルゲートチューブを少なくとも軸方向不動に固定する。コルゲートチューブは既存のものである。複数本の電線とそれを覆うコルゲートチューブとでワイヤハーネス６が構成されている。   3 and 4, the rib 46 in the horizontal pipe portion 13 of the protector 5 is engaged with the concave groove 49 (FIG. 1) of the corrugated tube, which is a protective tube on the outer periphery of the wire harness, so that the corrugated tube does not move at least in the axial direction. To fix. The corrugated tube is an existing one. A wire harness 6 is composed of a plurality of electric wires and a corrugated tube covering the wires.

本発明に係る電気接続箱のハーネス導出構造の一実施形態を示す正面図である。It is a front view which shows one Embodiment of the harness derivation | leading-out structure of the electrical junction box which concerns on this invention. 接続箱本体であるロアカバーを示す側面図である。It is a side view which shows the lower cover which is a connection box main body. ハーネス導出用のプロテクタを示す斜視図である。It is a perspective view which shows the protector for harness derivation | leading-out. 同じくプロテクタの展開状態を示す平面図である。It is a top view which similarly shows the expansion | deployment state of a protector. ロアカバーにプロテクタを連結させる状態を示す説明図である。It is explanatory drawing which shows the state which connects a protector to a lower cover. 従来の電気接続箱のハーネス導出構造の一形態を示す分解斜視図である。It is a disassembled perspective view which shows one form of the harness derivation | leading-out structure of the conventional electrical junction box. 従来のハーネスプロテクタの一形態を示す斜視図である。It is a perspective view which shows one form of the conventional harness protector.

符号の説明Explanation of symbols

１ 電気接続箱
３ ロアカバー
５ プロテクタ
１２，１３ 管部（屈曲部）
１４ 管部（嵌合部）
１４ａ 一方の分割管部（分割嵌合部）
１４ｂ 他方の分割管部（分割嵌合部）
２９，３０ リブ
２９’，３０’ リブ
２９ｃ’ 面取
４１ 管部（ハーネス導出部）
４２ リブ
４３ 凹溝 1 Electrical connection box 3 Lower cover 5 Protector 12, 13 Pipe (bent)
14 Pipe part (fitting part)
14a One split pipe part (split fitting part)
14b The other divided pipe part (divided fitting part)
29, 30 Rib 29 ', 30' Rib 29c 'Chamfer 41 Pipe part (harness lead-out part)
42 Rib 43 Groove

Claims (3)

電気接続箱のロアカバーの底壁に管状のハーネス導出部が設けられ、該ハーネス導出部に外側からワイヤハーネス規制用のプロテクタが嵌合され、該プロテクタは、該ハーネス導出部のハーネス導出方向に対して外側に屈曲した屈曲部を有し、且つ底部側のヒンジを支点に該ハーネス導出部の径方向に分割可能で且つ相互に係止可能に形成され、
該ハーネス導出部が外側に全周に渡るリブを有し、該ハーネス導出部に対する該プロテクタの一方の分割嵌合部と他方の分割嵌合部とが内周に、該リブに対する嵌合用のリブを有し、該一方の分割嵌合部は半周に渡る長いリブを有し、該他方の分割嵌合部は中央側に短いリブを有して、該一方の分割嵌合部の該長いリブが先に該ハーネス導出部のリブに嵌合し、次いで該他方の分割嵌合部が回動しつつ該他方の分割嵌合部の短いリブが該ハーネス導出部のリブに嵌合することを特徴とする電気接続箱のハーネス導出構造。 Electrical connection box harness lead-out portion of the tubular bottom wall of the lower cover is provided in the protector for a wire harness regulated from the outside to the harness lead-out portion is fitted, the protector, to harness lead-out direction of the harness lead-out portion A bent portion that is bent outward and can be divided in the radial direction of the harness lead-out portion with the hinge on the bottom side as a fulcrum and can be locked to each other.
The harness lead-out portion has a rib extending over the entire circumference on the outer side, and one split fitting portion and the other split fitting portion of the protector with respect to the harness lead-out portion are on the inner periphery, and a rib for fitting with the rib The one split fitting portion has a long rib extending over a half circumference, and the other split fitting portion has a short rib on the center side, and the long rib of the one split fitting portion that but that fits into the rib of the harness lead-out portion above, then a short rib divisions fitting portion of said other split fitting portion of said other are being rotated is fitted into the ribs of the harness lead-out portion Characteristic electrical junction box harness lead-out structure. 前記他方の分割嵌合部のリブに、前記ハーネス導出部のリブに対する逃がし用の面取が形成されたことを特徴とする請求項１記載の電気接続箱のハーネス導出構造。 Wherein the other of the divided fitting portions ribs, harness lead structure for an electric junction box according to claim 1, wherein the chamfered for relief against the ribs of the harness lead-out portion is formed. 前記一方の分割嵌合部のリブが直角な断面矩形状に形成されたことを特徴とする請求項１又は２記載の電気接続箱のハーネス導出構造。 The harness lead-out structure for an electrical junction box according to claim 1 or 2, wherein the rib of the one split fitting portion is formed in a rectangular shape with a right cross section.
JP2004114178A 2004-04-08 2004-04-08 Electrical junction box harness lead-out structure Expired - Fee Related JP4217653B2 (en)

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