JP4000829B2

JP4000829B2 - Power supply duct system

Info

Publication number: JP4000829B2
Application number: JP2001343257A
Authority: JP
Inventors: 政人土岐; 健内田
Original assignee: Matsushita Electric Works Ltd
Current assignee: Panasonic Electric Works Co Ltd
Priority date: 2001-11-08
Filing date: 2001-11-08
Publication date: 2007-10-31
Anticipated expiration: 2021-11-08
Also published as: JP2003151703A

Description

【０００１】
【発明の属する技術分野】
本発明は、導体を有するダクト本体と、栓刃を有するプラグとよりなる給電ダクトシステムに関するものである。
【０００２】
【従来の技術】
従来から情報ラックのような取付け部に取付けられる天面部１の両端部から側壁部２を対向延設して対向する側壁部２の先端部間に開口部３が形成されたダクト本体４の両側壁部２の内面部にダクト本体４の長手方向に沿ってそれぞれ導体５を配置し、プラグ７の挿入部の両側にそれぞれ外側に向けて栓刃６を突設し、プラグ７の挿入部をダクト本体４の開口部３内に挿入し、プラグ７を９０°回転して栓刃６をダクト本体４の両側壁部２の内面部に配設した導体５に接触させてプラグ７をダクト本体４に装着するようにした給電ダクトシステムが知られている。
【０００３】
ところで、上記のような給電ダクトシステムにおいては、ＩＥＣ規格に適合させたい場合、図６（ａ）に示すように試験針３０がダクト本体４の開口部３から導体５に接触しない構造にする必要がある。このため、従来にあってＩＥＣ規格に適合させるためには、導体５をダクト本体４の奥深くに配置したり、ダクト本体４の開口部３を狭くしたりする必要がある。しかしながら、導体５をダクト本体４の奥深くに配置するものにおいてはダクト本体４の深さが深くなると共にプラグ７の挿入部の差し込み方向の長さが長くなり、また、ダクト本体４の開口部３を狭くするものにおいては図６（ｂ）、図６（ｃ）に示すようにプラグ７がダクトから大きく突出してしまう構造となる。
【０００４】
例えば、コンピュータルーム等の室内で主に壁際に設置され、情報機器等が設置される情報ラックあるいはシステムラック等と呼ばれるものがあるが、このようなラックに取付ける情報ラック用の給電ダクトシステムを考える場合、非常に使い勝手が悪いものとなってしまうという問題がある。
【０００５】
また、従来にあっては、ダクト本体４は絶縁性及び強度確保のために樹脂材料に金属板を埋め込んで一体成形（いわゆるインサート成形）するものもあるが、このものにおいては、異なる材料のものを分別解体することが困難であった。
【０００６】
【発明が解決しようとする課題】
本発明は上記の点に鑑みてなされたものであり、試験針が開口部から導体に接触しないというＩＥＣ規格の適合性を満たしつつ、ダクト本体の薄型化、開口部の拡大、プラグの挿入部の突出度の低減を図ることができて使い勝手の良く、また、絶縁性、強度を確保できると共に、異なる材料のものを容易に分別解体することができる新規な給電ダクトシステムを提供することを課題とするものである。
【０００７】
【課題を解決するための手段】
上記課題を解決するために本発明に係る給電ダクトシステムは、情報ラックのような取付け部に取付けられる天面部１の両端部から側壁部２を対向延設して対向する側壁部２の先端部間に開口部３が形成されたダクト本体４と、ダクト本体４内に配置され所定長さを有してダクト本体４の長手方向に延設された複数で一組となった導体５と、この導体５にそれぞれ電気的に接触する複数で一組となった栓刃６を有してダクト本体４の開口部３に取着されるプラグ７とを備えた給電ダクトシステムであって、板金製のダクト本体４の天面部１の巾方向の中間部をダクト本体４内に凸曲してダクト本体１内に突出する凸部９を設け、両側の外面に導体５を保持した樹脂製の断面コ字状の導体保持部８を凸部９の略全体にわたって密接状態で被嵌することでダクト本体４の両側壁部２に対向する凸部９の両側面に導体５を位置させ、プラグ７に設けた複数の栓刃６をダクト本体４の巾方向の内側に突出すると共に複数の栓刃６のうちいずれかが他方に対して逆方向となるようにしたことを特徴とするものである。このような構成とすることで、ダクト本体４の巾方向の中間部に配置した各導体５と対向する側壁部２との間の巾がダクト本体４の巾の１／２以下となって狭くなり、この結果、ダクト本体４の奥行きを深くしたりあるいは開口部３の巾を狭くしなくても試験針が開口部３から導体に接触しない構造とでき、しかも、このように開口部３の巾を広くすることが可能なので、プラグ７を挿入して取付ける操作性が向上することになる。また、ダクト本体４の奥行きを深くしてなくてもよいので、ダクト本体４の薄型化が図れ、プラグの挿入部１５の突出度も低減できることになる。また、ダクト本体４の天面部１の巾方向の中間部をダクト本体４内に凸曲してダクト本体１内に突出する凸部９を設け、両側の外面に導体５を保持した断面コ字状の導体保持部８を凸部９の略全体にわたって密接状態で被嵌することでダクト本体４の両側壁部２に対向する凸部９の両側面に導体５を位置させるので、簡単な構成で複数の導体５がそれぞれダクト本体４の巾方向の外側を向き且つ複数の導体５のうちいずれかが他方に対して逆方向となるようにダクト本体４内の巾方向の中間部に配置することができ、また、板金製のダクト本体１の天面部１の中間部を凸曲した凸部９の略全体にわたって樹脂製の導体保持部８を密接状態で被嵌するので、樹脂製の導体保持部８の板金製のダクト本体１への接触面積を大きくすることが可能となり、導体５における発熱を効率良く板金製のダクト本体１に逃がすことができて、熱が滞留することによる樹脂製の導体保持部８の変形を低減できるものである。
【０００８】
また、導体５が樹脂製の導体保持部８に保持され、導体保持部８を板金製のダクト本体４に着脱可能に設けることが好ましい。このような構成とすることで、分別回収する際に、板金製のダクト本体４を合成樹脂製の導体保持部８から分別して回収ができるものである。
【０００９】
また、導体５が導体保持部８に着脱可能に保持してあることが好ましい。このような構成とすることで、分別回収する際に導体５を合成樹脂製の導体保持部８から脱離することで容易に導体５と合成樹脂製の導体保持部８とを分別回収できるものである。
【００１１】
また、ダクト本体４の開口部３の縁部に側壁部２の先端部を内方に折曲して折曲部１０を形成し、プラグ７に、ダクト本体４の開口部３に挿入されるとともに挿入状態でプラグ７を回転することでダクト本体４の折曲部１０に内側から係止する係止部１１を側方に突出し、前記プラグ７に設けた２個で一組となった栓刃６が、２個で一組となった導体５に接触した状態でダクト本体４の長手方向において位置がずれるように設けてあることが好ましい。このような構成とすることで、プラグ７の２個で一組となった栓刃６及び係止部１１をダクト本体４の開口部３内に挿入した状態でプラグ７を回転することで２個で一組となった栓刃６を対をなす導体５に接触させるとともに係止部１１を折曲部１０に内側から係止して装着できるものであり、また、２個で一組となった導体５に接触した状態でダクト本体４の長手方向において位置がずれるように設けてあるので、ダクト本体４への挿入回転による装着時の回転角度を小さくすることができるものである。
【００１２】
また、一方の係止部１１が２個で一組となった栓刃６のうち一方の栓刃６に隣り合うと共に他方の栓刃６に対向し、他の係止部１１が他方の栓刃６に隣りあうと共に一方の栓刃６に対向する位置に設けてあることが好ましい。このような構成とすることで、プラグ７をダクト本体４の開口部３に挿入回転して装着した状態で、プラグ７のダクト本体４への装着が安定するものである。
【００１３】
また、プラグ７にダクト本体４の開口部３への挿入回転装着時にダクト本体４に対するプラグ７の回転を防止するためのロック部１２を設けることが好ましい。このような構成とすることで、プラグ７をダクト本体４の開口部３に挿入回転して装着した状態でロック部１２により回転が防止されるので、装着状態で不用意にプラグ７が回転して栓刃６と導体５との接触が離れたりあるいはプラグ７がダクト本体４から外れたりしないものである。
【００１４】
また、プラグ７に設けたロック部１２をプラグ７の挿入部１５をダクト本体４の開口部３内に挿入する挿入方向と同方向に移動自在とし、該ロック部１２が、プラグ７の挿入部１５をダクト本体４の開口部３内に挿入して回転している状態で折曲部１０の外面に弾接し且つプラグ７の挿入部１５をダクト本体４に挿入して回転して栓刃６が導体５に接触した状態で開口部３内に弾性的に入り込むように弾性付勢してあることが好ましい。このような構成とすることで、プラグ７をダクト本体４の開口部３内に挿入回転して装着するだけでロック部１２が開口部３内に弾性的に入り込んでプラグ７の回転を防止する構成とすることができるものである。
【００１５】
また、開口部３に挿入したロック部１２を開口部３から引き抜くためにロック部１２の弾性付勢方向に抗してロック部１２を移動するための操作部１３をプラグ７に設けることが好ましい。このような構成とすることで、操作部１３を操作することで簡単にロック部１２によるロックを解除することができるものである。
【００１６】
また、プラグ７の外殻形状を、ダクト本体４へのプラグ７挿入時、回転取付け時のいずれの状態においてもダクト本体４の巾内に略収まるように形成することが好ましい。このような構成とすることで、プラグ７の操作スペース、配設スペース等のスペース効率が向上するものである。
【００１７】
【発明の実施の形態】
以下、本発明を添付図面に示す実施形態に基づいて説明する。
【００１８】
ダクト本体４は図３、図４に示すように情報ラックのような取付け部に取付けられる天面部１の両端部から側壁部２を対向延設して対向する側壁部２の先端部間に開口部３を形成した断面略コ字状をしている。ここで側壁部２の先端部は内方に折曲して折曲部１０を形成してあり、この折曲部１０の先端縁が開口部３の両端縁を構成している。両折曲部１０は同一形状ではなくダクト本体４の厚み（折曲部１０の突出方向と直交する方向である奥行き方向の寸法）あるいは突出長さ等が異なっており、添付図面に示す実施形態においては一方の折曲部１０ａは折り返し部を有していて、他方の折り返し部を有さない折曲部１０ｂにくらべて厚みが厚くなっている。
【００１９】
上記のように両折曲部１０を異なる形状としたのは、プラグ７の誤装着を防止するため（図１の紙面において左右逆にプラグ７が取付けられるのを防止するため）であり、両折曲部１０に対応するプラグ７の部分も後述のように左右非対称に形成してあり、このようにプラグ７の取付け方向を規定するのは導体５とプラグ７の極性を合わせるためである。
【００２０】
また、ダクト本体４天面部１の幅方向の中間部分をダクト本体４内に凸曲してダクト本体４内に突出する凸部９を設けてある。上記の構成のダクト本体４は板金製の一体物である。また、ダクト本体４の天面部１の凸部９以外の部分には情報ラックのような取付け部に取付ける際にねじ具のような固着具を挿入するための固着用の孔１４が設けてある。
【００２１】
本発明においては、ダクト本体４内の幅方向の中間部分には複数で一組となった長尺の導体５（以下の添付図面に示す実施形態では導体５は２個で一組となっている。つまり導体５が対になっている例で説明する。）がダクト本体４の長手方向にわたって配置されるが、この複数で一組となった導体５がそれぞれダクト本体４の巾方向の外側を向き且つ複数の導体５のうちいずれかが他方に対して逆方向となるようにダクト本体４内の巾方向の中間部に配置される。
【００２２】
すなわち、添付図面に示す実施形態においては、断面コ字状をした合成樹脂製の長尺の導体保持部８の両側片８ａの各外面にそれぞれ導体保持溝８ｂを長手方向にわたって形成し、断面コ字状をした合成樹脂製の導体保持部８の中央片８ｃの外面に接地用導体保持溝８ｄを設けてある。そして、両側片８ａの各外面に形成した導体保持溝８ｂに長尺の導体５を着脱自在に挿入して保持し、更に中央片８ｃの外面に形成した接地用導体保持溝８ｄに長尺の接地用導体５’を着脱自在に挿入して保持している。上記のように２個で一組となった対をなす導体５、接地用導体５’を着脱自在に保持した合成樹脂製の断面コ字状の導体保持部８をダクト本体４の天面部１の中央の凸部９に密接状態で被嵌して着脱自在に取付けてある。このようにダクト本体４の凸部９に断面コ字状の導体保持部８を密接させることで接触面積を大きくすることができて、導体５による発熱を効率よくダクト本体４に逃がすことができて、熱が滞留することによる導体保持部８の変形を防ぐことができる。また、複数で組となった導体５を保持した断面コ字状の導体保持部８をダクト本体４の天面部１の中央の凸部９に密接状態で着脱自在に被嵌することで、複数で組となった導体５を同時にダクト本体４に同時に取付けることができて取付けが簡略化されるものである。ここで、導体保持部８をダクト本体４に着脱自在とするに当たっては、例えば、断面コ字状をした導体保持部８を弾性を有する合成樹脂により形成して、断面コ字状の導体保持部８を凸部９に弾性的に被嵌することで着脱自在に取付けたり、あるいは、係合手段により着脱自在に取付けたり、あるいはかしめにより着脱自在に取付けたり、あるいは他の任意の着脱取付け手段により取付けたりするものである。
【００２３】
上記のように導体保持部８を凸部９に取付けることで、ダクト本体４の側壁部２に対向する凸部９側面に導体５が位置することになり、この結果、対をなす導体５がそれぞれダクト本体４の巾方向の外側を向き且つ対をなす導体５の向きが互いに逆方向となるように対をなす導体５がダクト本体４内の巾方向の中間部に配置されることになる。そして、導体保持部８の中央片８ｃの外面に着脱自在に保持した長尺の接地用導体５’は開口部３側を向いている。
【００２４】
本発明に使用するプラグ７は図５に示すようなもので、プラグ本体１６の片面から挿入部１５を突出して構成してあり、挿入部１５の突出面部には複数で一組となった栓刃６がダクト本体４に後述のようにしてプラグ７を取付け状態でダクト本体４の巾方向の内側方向に向けて突出するように設けてあり、複数の栓刃６のうちいずれかが他方に対して逆方向となっている。添付図面に示す実施形態では栓刃６は２個で一組となっており、以下は栓刃６が対になっている例で説明する。挿入部１５の突出面部には対をなす栓刃６の外側において栓刃６をカバーするように栓刃カバー片１７が突設してある。つまり、栓刃６は栓刃カバー片１７の内面側に位置している。プラグ７に設けた栓刃６及び栓刃カバー片１７は後述のようにプラグ７をダクト本体４に装着して対をなす栓刃６が対をなす導体５に接触した状態でダクト本体４の長手方向において位置がずれるように設けてある。図５（ｆ）において一点鎖線で示す線イがプラグ７をダクト本体４への装着時におけるダクト本体４の長手方向であり、この線イに対して対をなす栓刃６の位置がずれている（なお、図５（ｆ）において線ロはプラグ７をダクト本体４の開口部３に挿入する時のダクト本体４の長手方向を示している）。また、挿入部１５の突出面部の中央には接地用ピン１８が設けてあって、プラグ７をダクト本体４に装着した際に接地用ピン１８が接地用導体５’に接触するようになっている。
【００２５】
プラグ７の片面から突出した挿入部１５の突出基部の外側面には一対の係止部１１が外側方に向けて突出している。この一対の係止部１１は挿入部１５をダクト本体４の開口部３に挿入する際に挿入部１５と共に開口部３内に挿入でき且つ挿入状態でプラグ７を回転することでダクト本体４の折曲部１０に内側から係止するようになっている。ここで、対となる係止部１１が外側方に向けて突出している。係止部１１は一対設けてあり、一方の係止部１１ａは一方の折曲部１０ａに係止し、他方の係止部１１ｂは他方の折曲部１０ｂに係止するもので、一方の係止部１１ａが対をなす栓刃６のうち一方の栓刃６に隣り合うと共に他方の栓刃６に対向し、他の係止部１１ｂが他方の栓刃６に隣りあうと共に一方の栓刃６に対向する位置に設けてある。
【００２６】
また、プラグ７にはダクト本体４の開口部３への挿入回転装着時にダクト本体４に対するプラグ７の回転を防止するためのロック部１２を設けてある。すなわち、プラグ本体１６の側面部には挿入部１５の突出方向と平行な方向に移動自在に移動体１９が設けてあり、この移動体１９の挿入部１５の突出方向と同方向にロック部１２が突出してあり、移動体１９の外面部が操作部１３となっている。移動自在な移動体１９はばね（図示せず）により挿入部１５の突出方向に向けてばね力を付勢してあり、移動体１９をばね力に抗して移動しようとする外力が加わらない状態では図５に示すようにプラグ本体１６から挿入部１５の突出方向と同方向に向けてロック部１２が突出しており、操作部１３を操作してばね力に抗して移動体１９を挿入部１５の突出方向と反対方向に移動することでロック部１２を挿入部１５の突出方向と反対方向に向けて移動することができるようになっている。
【００２７】
また、プラグ本体１６の外殻形状は後述のようにしてダクト本体４にプラグ７を挿入して回転取付ける際、挿入時、回転時のいずれの状態においてもダクト本体４の巾内に略収まるように形成してある。図５に示す実施形態ではプラグ本体１６は正面視略円形状をしており、その直径はダクト本体４の巾と略等しいか又はダクト本体４の巾よりも小さいものである。ここで、プラグ本体１６は正面視略円形状をしているが、操作部１３の外面の外部への露出部分は正面視直線上となっている。つまり、プラグ本体１６は正面視において円の一部が操作部１３部分において直線となっている。
【００２８】
しかして、本発明において、ダクト本体４にプラグ７を取付けるには以下のようにして行うものである。
【００２９】
すなわち、プラグ７の挿入部１５をダクト本体４の開口部３内に挿入する。この場合、挿入部１５に設けた対となる栓刃６及び対となる係止部１１が開口部３内に挿入する。ここで、図２の破線に示すように操作部１３がダクト本体４の一方の折曲部１０の折曲基部にほぼ沿わせるように位置合わせすることで、挿入部１５に設けた対となる栓刃６及び対となる係止部１１が開口部３内に入れることができるように設定してある。また、操作部１３をダクト本体４の一方の折曲部１０の折曲基部にほぼ沿わせるように位置合わせするとロック部１２が一方の折曲部１０の外面に当接するので、この状態でプラグ７をロック部１２の弾性付勢力に抗して押し込むことで、ロック部１２が折曲部１０の外面に弾性的に押し当てられてプラグ本体１６側に移動する。この状態で図２（ａ）の矢印方向にプラグ７を回動することで、図１のように対をなす栓刃６が対をなす導体５に接触し、また、対をなす係止部１１が対をなす折曲部１０にそれぞれ内側から係止することでダクト本体４にプラグ７が取付けられる。この時、図２（ａ）の矢印のようにプラグ７を回転することで、ロック部１２が折曲部１０の外面に弾性的に押し当てられながら摺動し、上記のように栓刃６が導体５に接触し且つ係止部１１が折曲部１０に係止した状態まで回動するとロック部１２が折曲部１０の先端を越え、ばね付勢力により図１のように開口部３内に弾入して折曲部１０の先端に係止してプラグ７の回り止めのためのロックを行うことになる。また、このプラグ７のダクト本体４への取付け状態で図１に示すように接地用ピン１８が接地用導体５’に接触する。
【００３０】
上記のようにプラグ７の挿入部１５をダクト本体４の開口部３内に挿入回転して栓刃６を導体５に接触するに当たり、対をなす導体５に接触した状態でダクト本体４の長手方向において位置がずれるように設けてあるので、ダクト本体４への挿入回転による装着時の回転角度を小さくして使い勝手を良くすることができるものである。
【００３１】
ここで、図２に示すようにダクト本体４の開口部３へのプラグ７の挿入、回転、装着という各段階でプラグ７がダクト本体４の巾方向にはみ出さないようになっており、これによりプラグ７の操作スペース、配設スペース等のスペース効率が向上し、スペース効率が重要な情報ラック用ダクトシステムとして特に効果的である。
【００３２】
プラグ７の取り外しに当たっては、操作部１３をばねに抗して操作することでロック部１２をプラグ本体１６側に引き込ませてロックを解除し、この状態で上記と逆にプラグ７を回転することで、栓刃６の導体５への接触を解除し且つ係止部１１の折曲部１０への係止を解除して図２の破線の状態とし、この状態でプラグ７を引き抜くことで取り外すことができるものである。
【００３３】
ところで、本発明においては、上記のように、ダクト本体４の巾方向の中間部に対をなす導体５をそれぞれダクト本体４の巾方向の外側を向き且つ対をなす導体５の向きが互いに逆方向となるように配置してあり、プラグ７に設けた対をなす栓刃６をダクト本体４の巾方向の内側に突出すると共に対をなす栓刃６の突出方向が互いに逆方向となるようにして、上記のようにプラグ７をダクト本体４に挿入して回転することで取付けるので、ダクト本体４の巾方向の中間部に配置した対をなす各導体５と対向する側壁部２との間の巾がダクト本体４の巾の１／２以下となって狭くなるものである。したがって、ＩＥＣ規格に適合させるために試験針がダクト本体４の開口部３から導体５に接触しない構造にするに当たって、従来のようにダクト本体４の奥行きを深くしたりあるいは開口部３の巾を狭くしなくても試験針が開口部３から導体に接触しない構造にできるものである。したがって、開口部３の巾を広くすることが可能となり、プラグ７を挿入して取付ける操作性が向上させることができるものである。また、従来のようにダクト本体４の奥行きを深くしてなくてもよいので、ダクト本体４の薄型化が図れ、プラグ７の挿入部１５の突出度も低減できることになる。
【００３４】
本発明の給電ダクトシステムの使用が終わって廃棄する際に分別回収するに当たっては、合成樹脂製の導体保持部８が板金製のダクト本体４に着脱可能となっているので、板金製のダクト本体４を合成樹脂製の導体保持部８から分離して分別回収ができるものであり、また、導体５が導体保持部８に着脱可能に保持してあるので、導体５と合成樹脂製の導体保持部８とを容易に分離して分別回収できるものである。これにより資源の再利用が容易にできるものである。
【００３５】
なお、添付図面においてはダクト本体４の巾方向の中間部分に複数で一組となった導体５として、２個で一組となった導体５を一組設けた例で説明したが、３個以上の導体５で一組としてもよいものである。また、栓刃６も３個以上で一組としてもよいものである。
【００３６】
また、添付図面に示す実施形態においては、ダクト本体４の巾方向の中間部分に複数で一組となった導体５として一組のみ設けた例で説明したが、ダクト本体４の巾方向の中間部分に複数で一組となった導体５として二組以上（つまり複数組）設けてもよいものである。
【００３７】
【発明の効果】
上記のように本発明の請求項１記載の発明にあっては、板金製のダクト本体の天面部の巾方向の中間部をダクト本体内に凸曲してダクト本体内に突出する凸部を設け、両側の外面に導体を保持した樹脂製の断面コ字状の導体保持部を凸部の略全体にわたって密接状態で被嵌することでダクト本体の両側壁部に対向する凸部の両側面に導体を位置させ、プラグに設けた複数の栓刃をダクト本体の巾方向の内側に突出すると共に複数の栓刃のうちいずれかが他方に対して逆方向となるようにしたので、試験針が開口部から導体に接触しないというＩＥＣ規格の適合性を満たしつつ、ダクト本体の薄型化、開口部の拡大、プラグの挿入部の突出度の低減を図ることができるものであり、また、開口部を広くすることが可能となって使い勝手も良くなるものであり、また、ダクト本体の天面部の巾方向の中間部をダクト本体内に凸曲してダクト本体内に突出する凸部を設け、両側の外面に導体を保持した断面コ字状の導体保持部を凸部の略全体にわたって密接状態で被嵌することでダクト本体の両側壁部に対向する凸部の両側面に導体を位置させるので、簡単な構成で複数の導体がそれぞれダクト本体の巾方向の外側を向き且つ複数の導体のうちいずれかが他方に対して逆方向となるようにダクト本体内の巾方向の中間部に配置することができ、また、板金製のダクト本体の天面部の中間部を凸曲した凸部の略全体にわたって樹脂製の導体保持部を密接状態で被嵌するので、樹脂製の導体保持部の板金製のダクト本体への接触面積を大きくすることが可能となり、導体における発熱を効率良く板金製のダクト本体に逃がすことができて、熱が滞留することによる樹脂製の導体保持部の変形を低減できるものである。
【００３８】
また、請求項２記載の発明にあっては、上記請求項１記載の発明の効果に加えて、導体が樹脂製の導体保持部に保持され、導体保持部を板金製のダクト本体に着脱可能に設けてあるので、絶縁性及び強度を確保でき、また、分別回収する際に、板金製のダクト本体を合成樹脂製の導体保持部から容易に分別して回収できるものである。
【００３９】
また、請求項３記載の発明にあっては、上記請求項２記載の発明の効果に加えて、導体が導体保持部に着脱可能に保持してあるので、分別回収する際に導体を合成樹脂製の導体保持部から容易に分離して容易に導体と合成樹脂製の導体保持部とを分別回収できるものである。
【００４１】
また、請求項４記載の発明にあっては、上記請求項１乃至請求項３のいずれかに記載の発明の効果に加えて、ダクト本体の開口部の縁部に側壁部の先端部を内方に折曲して折曲部を形成し、プラグに、ダクト本体の開口部に挿入されるとともに挿入状態でプラグを回転することでダクト本体の折曲部に内側から係止する係止部を側方に突出し、前記プラグに設けた２個で一組となる栓刃が、２個で一組となる導体に接触した状態でダクト本体の長手方向において位置がずれるように設けてあるので、プラグの対をなす栓刃及び係止部をダクト本体の開口部内に挿入した状態でプラグを回転することで対をなす栓刃を対をなす導体に接触させるとともに係止部を折曲部に内側から係止して装着できるものであり、また、対をなす導体に接触した状態でダクト本体の長手方向において位置がずれるように設けてあるので、ダクト本体への挿入回転による装着時の回転角度を小さくすることができるものである。
【００４２】
また、請求項５記載の発明にあっては、上記請求項４記載の発明の効果に加えて、一方の係止部が２個で一組となる栓刃のうち一方の栓刃に隣り合うと共に他方の栓刃に対向し、他の係止部が他方の栓刃に隣りあうと共に一方の栓刃に対向する位置に設けてあるので、プラグをダクト本体の開口部に挿入回転して装着した状態で、プラグのダクト本体への装着が安定するものである。
【００４３】
また、請求項６記載の発明にあっては、上記請求項１乃至請求項５のいずれかに記載の発明の効果に加えて、プラグにダクト本体の開口部への挿入回転装着時にダクト本体に対するプラグの回転を防止するためのロック部を設けてあるので、プラグをダクト本体の開口部に挿入回転して装着した状態でロック部により回転が防止でき、これにより装着状態で不用意にプラグが回転して栓刃と導体との接触が離れたりあるいはプラグがダクト本体から外れたりせず、プラグの取付けが確実に保持できるものである。
【００４４】
また、請求項７記載の発明にあっては、上記請求項６記載の発明の効果に加えて、プラグに設けたロック部をプラグの挿入部をダクト本体の開口部内に挿入する挿入方向と同方向に移動自在とし、該ロック部が、プラグの挿入部をダクト本体の開口部内に挿入して回転している状態で折曲部の外面に弾接し且つプラグの挿入部をダクト本体に挿入して回転して栓刃が導体に接触した状態で開口部内に弾性的に入り込むように弾性付勢してあるので、プラグをダクト本体の開口部内に挿入回転して装着するだけでロック部が開口部内に弾性的に入り込んでプラグの回転を防止する構成とすることができ、プラグの挿入、回転装着操作のみで同時にロックができて操作性が良くなるものである。
【００４５】
また、請求項８記載の発明にあっては、上記請求項７記載の発明の効果に加えて、開口部に挿入したロック部を開口部から引き抜くためにロック部の弾性付勢方向に抗してロック部を移動するための操作部をプラグに設けてあるので、操作部を操作することで簡単にロック部によるロックを解除することができて、操作性が良くなるものである。
【００４６】
また、請求項９記載の発明にあっては、上記請求項１乃至請求項８記載の発明の効果に加えて、プラグの外殻形状を、ダクト本体へのプラグ挿入時、回転取付け時のいずれの状態においてもダクト本体の巾内に略収まるように形成してあるので、プラグの操作スペース、配設スペース等のスペース効率が向上し、特にスペース効率が重要な情報ラック用ダクトシステムにおいて効果が大となるものである。
【図面の簡単な説明】
【図１】本発明のダクト本体へのプラグの取付け状態を示す断面図である。
【図２】（ａ）は同上の正面図であり、（ｂ）は同上の側面図である。
【図３】同上に用いるダクト本体斜視図である。
【図４】（ａ）は同上に用いるダクト本体の側面図であり、（ｂ）は正面図であり、（ｃ）は平面図であり、（ｄ）は背面図である。
【図５】（ａ）は同上に用いるプラグの正面図であり、（ｂ）は下面図であり、（ｃ）は平面図であり、（ｄ）は左側面図であり、（ｅ）は右側面図であり、（ｆ）は背面図である。
【図６】従来例を示し、（ａ）はダクト本体の断面図であり、（ｂ）はプラグ取付け状態の断面図であり、（ｃ）はプラグ取付け状態の正面図である。
【符号の説明】
１天面部
２側壁部
３開口部
４ダクト本体
５導体
６栓刃
７プラグ
８導体保持部
９凸部
１０折曲部
１１係止部
１２ロック部
１３操作部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a power supply duct system including a duct body having a conductor and a plug having a plug blade.
[0002]
[Prior art]
Conventionally, both sides of the duct body 4 in which the side walls 2 are oppositely extended from both end portions of the top surface portion 1 attached to a mounting portion such as an information rack and the opening portions 3 are formed between the front end portions of the opposing side wall portions 2. Conductors 5 are arranged on the inner surface of the wall portion 2 along the longitudinal direction of the duct body 4, plug blades 6 project outwardly on both sides of the insertion portion of the plug 7, and the insertion portion of the plug 7 is provided. The plug 7 is inserted into the opening 3 of the duct body 4, the plug 7 is rotated by 90 °, and the plug blade 6 is brought into contact with the conductors 5 arranged on the inner surface portions of the both side walls 2 of the duct body 4, thereby connecting the plug 7 to the duct body. 4 is known.
[0003]
By the way, in the above power supply duct system, when it is desired to conform to the IEC standard, it is necessary to have a structure in which the test needle 30 does not contact the conductor 5 from the opening 3 of the duct body 4 as shown in FIG. There is. For this reason, in order to conform to the IEC standard in the prior art, it is necessary to arrange the conductor 5 deep in the duct body 4 or to narrow the opening 3 of the duct body 4. However, in the case where the conductor 5 is disposed deep in the duct main body 4, the depth of the duct main body 4 is increased, the length of the insertion portion of the plug 7 in the insertion direction is increased, and the opening 3 of the duct main body 4 is increased. In the case of narrowing, the plug 7 protrudes greatly from the duct as shown in FIGS. 6 (b) and 6 (c).
[0004]
For example, there is an information rack or a system rack that is mainly installed near a wall in a computer room or the like and on which information equipment is installed. Consider a power supply duct system for an information rack that is attached to such a rack. In this case, there is a problem that it becomes very inconvenient.
[0005]
In addition, in the past, the duct body 4 may be integrally molded (so-called insert molding) by embedding a metal plate in a resin material in order to ensure insulation and strength. It was difficult to separate and dismantle.
[0006]
[Problems to be solved by the invention]
The present invention has been made in view of the above points, and while satisfying the conformity of the IEC standard that the test needle does not contact the conductor from the opening, the duct body is thinned, the opening is enlarged, the plug insertion part It is an object to provide a new power supply duct system that can reduce the protrusion degree of the material, is easy to use, can secure insulation and strength, and can easily separate and disassemble different materials. It is what.
[0007]
[Means for Solving the Problems]
  In order to solve the above-described problems, a power supply duct system according to the present invention includes a distal end portion of a side wall portion 2 that is opposed to each other by extending opposite side walls from both end portions of a top surface portion 1 attached to an attachment portion such as an information rack. A duct body 4 having an opening 3 formed therebetween, and a plurality of conductors 5 arranged in the duct body 4 and having a predetermined length and extending in the longitudinal direction of the duct body 4; A power supply duct system having a plurality of plug blades 6 that are in electrical contact with the conductors 5 and a plug 7 attached to the opening 3 of the duct body 4,A sheet metal-made duct body 4 having a convex portion 9 projecting into the duct body 1 by bending the intermediate portion in the width direction of the top surface portion 1 into the duct body 4 and holding the conductors 5 on both outer surfaces. The conductor 5 is positioned on both side surfaces of the convex portion 9 facing the both side wall portions 2 of the duct body 4 by fitting the conductor holding portion 8 having a U-shaped cross section in close contact over substantially the entire convex portion 9,A plurality of plug blades 6 provided on the plug 7 protrude inward in the width direction of the duct body 4 and one of the plurality of plug blades 6 is opposite to the other. It is. By adopting such a configuration, the width between each conductor 5 arranged in the intermediate portion of the duct body 4 in the width direction and the side wall portion 2 facing the width is less than or equal to ½ of the width of the duct body 4. As a result, the structure in which the test needle does not contact the conductor from the opening 3 without increasing the depth of the duct body 4 or reducing the width of the opening 3 can be achieved. Since the width can be increased, the operability for inserting and attaching the plug 7 is improved. Further, since the duct body 4 does not have to be deepened, the duct body 4 can be thinned and the degree of protrusion of the plug insertion portion 15 can be reduced.Further, a cross-sectional U-shape in which an intermediate portion in the width direction of the top surface portion 1 of the duct main body 4 is bent in the duct main body 4 to protrude into the duct main body 1 and the conductors 5 are held on the outer surfaces on both sides. Since the conductor 5 is positioned on both side surfaces of the convex portion 9 facing the both side wall portions 2 of the duct main body 4 by closely fitting the convex conductor holding portion 8 over almost the entire convex portion 9, the simple configuration The plurality of conductors 5 are arranged at the intermediate portion in the width direction in the duct body 4 so that each of the conductors 5 faces the outside in the width direction of the duct body 4 and one of the plurality of conductors 5 is opposite to the other. In addition, since the resin conductor holding portion 8 is closely fitted over the entire convex portion 9 that is bent at the middle portion of the top surface portion 1 of the duct body 1 made of sheet metal, the resin conductor It is possible to increase the contact area of the holding portion 8 to the sheet metal duct body 1 Ri, to be able to escape heat generated in the conductor 5 to efficiently sheet metal duct body 1, in which heat can reduce deformation of the resin of the conductive holder 8 by staying.
[0008]
Moreover, it is preferable that the conductor 5 is held by the resin-made conductor holding portion 8 and the conductor holding portion 8 is detachably provided on the sheet metal duct main body 4. With such a configuration, when separating and collecting, the sheet metal duct main body 4 can be separated and recovered from the synthetic resin conductor holding portion 8.
[0009]
Moreover, it is preferable that the conductor 5 is detachably held by the conductor holding portion 8. By adopting such a configuration, the conductor 5 and the synthetic resin conductor holding portion 8 can be easily separated and collected by separating the conductor 5 from the synthetic resin conductor holding portion 8 at the time of separate collection. It is.
[0011]
Further, the front end of the side wall 2 is bent inward at the edge of the opening 3 of the duct body 4 to form a bent portion 10, and the plug 7 is inserted into the opening 3 of the duct body 4. In addition, by rotating the plug 7 in the inserted state, a locking portion 11 that locks the bent portion 10 of the duct body 4 from the inside protrudes to the side, and the two plugs provided on the plug 7 form a set. It is preferable that the blades 6 are provided so that the positions thereof are shifted in the longitudinal direction of the duct body 4 in a state where the blades 6 are in contact with the conductors 5 that form a pair. By adopting such a configuration, the plug 7 can be rotated by rotating the plug 7 with the plug blade 6 and the locking portion 11 paired with two plugs 7 inserted into the opening 3 of the duct body 4. The pair of plug blades 6 can be brought into contact with the pair of conductors 5 and the engaging portion 11 can be engaged with the bent portion 10 from the inside, and can be attached together. Since the position is shifted in the longitudinal direction of the duct body 4 in contact with the formed conductor 5, the rotation angle at the time of mounting by insertion rotation to the duct body 4 can be reduced.
[0012]
Further, of the plug blades 6 in which one of the two locking portions 11 is a set, the one of the plug blades 6 is adjacent to and opposed to the other plug blade 6, and the other locking portion 11 is the other plug blade 6. It is preferable to be provided at a position adjacent to the blade 6 and facing one of the plug blades 6. With such a configuration, the plug 7 is stably mounted on the duct body 4 in a state where the plug 7 is inserted into the opening 3 of the duct body 4 and rotated.
[0013]
Moreover, it is preferable to provide the lock part 12 for preventing the rotation of the plug 7 with respect to the duct body 4 when the plug 7 is inserted and rotated into the opening 3 of the duct body 4. By adopting such a configuration, the plug 7 is prevented from rotating by being inserted and rotated in the opening 3 of the duct body 4 and mounted by the lock portion 12, so that the plug 7 rotates carelessly in the mounted state. Thus, the contact between the plug blade 6 and the conductor 5 is not separated, or the plug 7 is not detached from the duct body 4.
[0014]
Further, the lock portion 12 provided on the plug 7 is movable in the same direction as the insertion direction in which the insertion portion 15 of the plug 7 is inserted into the opening 3 of the duct body 4, and the lock portion 12 is inserted into the insertion portion of the plug 7. 15 is inserted into the opening 3 of the duct main body 4 and is rotated to elastically contact the outer surface of the bent portion 10, and the insertion portion 15 of the plug 7 is inserted into the duct main body 4 and rotated to plug the blade 6. Is preferably elastically urged so as to elastically enter the opening 3 in a state of contact with the conductor 5. By adopting such a configuration, simply by inserting and rotating the plug 7 into the opening 3 of the duct body 4, the lock portion 12 elastically enters the opening 3 to prevent the plug 7 from rotating. It can be configured.
[0015]
Further, it is preferable to provide the plug 7 with an operation portion 13 for moving the lock portion 12 against the elastic biasing direction of the lock portion 12 in order to pull out the lock portion 12 inserted into the opening portion 3 from the opening portion 3. . With this configuration, the lock by the lock unit 12 can be easily released by operating the operation unit 13.
[0016]
Further, it is preferable that the outer shell shape of the plug 7 is formed so as to be substantially within the width of the duct body 4 when the plug 7 is inserted into the duct body 4 and when it is rotationally mounted. By adopting such a configuration, space efficiency such as an operation space and an arrangement space of the plug 7 is improved.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described based on embodiments shown in the accompanying drawings.
[0018]
As shown in FIGS. 3 and 4, the duct main body 4 is extended between opposite end portions of the top surface portion 1 attached to an attachment portion such as an information rack, and opens between the front end portions of the opposite side wall portions 2. The section 3 is formed in a substantially U-shaped cross section. Here, the front end portion of the side wall portion 2 is bent inward to form a bent portion 10, and the front end edge of the bent portion 10 constitutes both end edges of the opening 3. The two bent portions 10 are not the same shape, but differ in the thickness of the duct body 4 (the dimension in the depth direction, which is a direction perpendicular to the protruding direction of the bent portion 10), the protruding length, and the like. In FIG. 1, one bent portion 10a has a folded portion and is thicker than the bent portion 10b that does not have the other folded portion.
[0019]
The reason why the bent portions 10 are formed in different shapes as described above is to prevent erroneous mounting of the plug 7 (in order to prevent the plug 7 from being attached to the left and right reversed in the plane of FIG. 1). The portion of the plug 7 corresponding to the bent portion 10 is also formed asymmetrically as will be described later, and the mounting direction of the plug 7 is defined in this way in order to match the polarities of the conductor 5 and the plug 7.
[0020]
Further, a convex portion 9 that protrudes into the duct main body 4 by bending an intermediate portion in the width direction of the duct main body 4 in the width direction is provided. The duct main body 4 having the above-described configuration is a single piece made of sheet metal. Further, a portion 14 other than the convex portion 9 of the top surface portion 1 of the duct body 4 is provided with a fixing hole 14 for inserting a fixing tool such as a screw tool when attached to an attachment portion such as an information rack. .
[0021]
In the present invention, a plurality of pairs of long conductors 5 (in the embodiment shown in the following attached drawings, two conductors 5 form a set in the middle portion of the duct body 4 in the width direction. In other words, the conductor 5 is described as an example.) Is arranged along the longitudinal direction of the duct main body 4, but a plurality of sets of conductors 5 are arranged outside the duct main body 4 in the width direction. And the conductor 5 is disposed in the middle portion of the duct body 4 in the width direction so that one of the plurality of conductors 5 is opposite to the other.
[0022]
That is, in the embodiment shown in the accompanying drawings, conductor holding grooves 8b are formed on the outer surfaces of both side pieces 8a of the long conductor holding portion 8 made of synthetic resin having a U-shaped cross section in the longitudinal direction, respectively. A grounding conductor holding groove 8d is provided on the outer surface of the central piece 8c of the letter-shaped synthetic resin conductor holding portion 8. Then, the long conductor 5 is detachably inserted and held in the conductor holding grooves 8b formed on the outer surfaces of the both side pieces 8a, and the long conductor 5d is formed in the grounding conductor holding groove 8d formed on the outer surface of the center piece 8c. A grounding conductor 5 'is detachably inserted and held. A pair of conductors 5 and a grounding conductor 5 ′, which are paired as a pair as described above, are detachably held in a synthetic resin-made U-shaped conductor holding portion 8, and the top surface portion 1 of the duct body 4. The center convex portion 9 is closely fitted and detachably attached. Thus, by bringing the conductor holding portion 8 having a U-shaped cross section into close contact with the convex portion 9 of the duct body 4, the contact area can be increased, and heat generated by the conductor 5 can be efficiently released to the duct body 4. Thus, deformation of the conductor holding portion 8 due to heat retention can be prevented. Further, a plurality of conductor holding portions 8 holding a pair of conductors 5 are detachably fitted in close contact with the convex portion 9 at the center of the top surface portion 1 of the duct body 4 so as to be detachable. The conductors 5 assembled in the above can be attached to the duct body 4 at the same time, and the attachment is simplified. Here, in order to make the conductor holding part 8 detachable from the duct body 4, for example, the conductor holding part 8 having a U-shaped cross section is formed of an elastic synthetic resin so that the conductor holding part having a U-shaped cross section is formed. 8 is detachably attached by elastically fitting the projection 8 to the convex portion 9, or is detachably attached by an engaging means, or detachably attached by caulking, or by any other detachable attachment means. It is something to install.
[0023]
By attaching the conductor holding portion 8 to the convex portion 9 as described above, the conductor 5 is positioned on the side surface of the convex portion 9 facing the side wall portion 2 of the duct body 4, and as a result, the pair of conductors 5 is formed. The paired conductors 5 are disposed in the intermediate portion of the duct body 4 in the width direction so that the respective conductors 5 that face the outside in the width direction of the duct body 4 are opposite to each other. . The long grounding conductor 5 ′ detachably held on the outer surface of the central piece 8 c of the conductor holding portion 8 faces the opening 3 side.
[0024]
The plug 7 used in the present invention is as shown in FIG. 5, and is configured such that the insertion portion 15 protrudes from one side of the plug body 16, and a plurality of plugs are formed on the protruding surface portion of the insertion portion 15. The blade 6 is provided so as to protrude toward the inner side in the width direction of the duct body 4 with the plug 7 attached to the duct body 4 as described later, and one of the plurality of plug blades 6 is on the other side. On the other hand, it is the opposite direction. In the embodiment shown in the accompanying drawings, there are two plug blades 6 as one set, and the following description will be made with an example in which the plug blades 6 are paired. A plug blade cover piece 17 protrudes from the protruding surface portion of the insertion portion 15 so as to cover the plug blade 6 outside the pair of plug blades 6. That is, the plug blade 6 is located on the inner surface side of the plug blade cover piece 17. As will be described later, the plug blade 6 and the plug blade cover piece 17 provided on the plug 7 are mounted on the duct main body 4 and the pair of plug blades 6 are in contact with the pair of conductors 5 as described below. It is provided so that the position is shifted in the longitudinal direction. In FIG. 5 (f), the line A indicated by the alternate long and short dash line is the longitudinal direction of the duct body 4 when the plug 7 is attached to the duct body 4, and the position of the plug blade 6 that makes a pair with respect to the line A is shifted. (In FIG. 5 (f), the line B indicates the longitudinal direction of the duct body 4 when the plug 7 is inserted into the opening 3 of the duct body 4). Further, a grounding pin 18 is provided at the center of the projecting surface portion of the insertion portion 15, and the grounding pin 18 comes into contact with the grounding conductor 5 ′ when the plug 7 is attached to the duct body 4. Yes.
[0025]
A pair of locking portions 11 protrude outward from the outer surface of the protruding base portion of the insertion portion 15 protruding from one surface of the plug 7. The pair of locking portions 11 can be inserted into the opening 3 together with the insertion portion 15 when the insertion portion 15 is inserted into the opening 3 of the duct main body 4, and the plug 7 is rotated in the inserted state, whereby the duct body 4 The bent portion 10 is locked from the inside. Here, a pair of locking portions 11 protrudes outward. A pair of locking portions 11 are provided, one locking portion 11a is locked to one bent portion 10a, and the other locking portion 11b is locked to the other bent portion 10b. One of the plug blades 6 of which the locking portion 11a is paired is adjacent to and opposite to the other plug blade 6, and the other locking portion 11b is adjacent to the other plug blade 6 and one plug blade. It is provided at a position facing the blade 6.
[0026]
  In addition, the plug 7 is provided with a lock portion 12 for preventing the plug 7 from rotating relative to the duct body 4 when being inserted and rotated into the opening 3 of the duct body 4. In other words, the movable body 19 is provided on the side surface of the plug body 16 so as to be movable in a direction parallel to the protruding direction of the insertion portion 15, and the locking portion 12 is arranged in the same direction as the protruding direction of the insertion portion 15 of the movable body 19. Projecting, and the outer surface portion of the moving body 19 is an operation portion 13. The movable body 19 is urged by a spring (not shown) in the direction in which the insertion portion 15 protrudes, and no external force is applied to move the movable body 19 against the spring force. In the state, as shown in FIG.In the same direction as the protruding directionThe lock portion 12 protrudes toward the end, and the operating portion 13 is operated to move the moving body 19 in the direction opposite to the protruding direction of the insertion portion 15 against the spring force, thereby causing the lock portion 12 to protrude from the insertion portion 15. It can move in the direction opposite to the direction.
[0027]
  Further, the outer shell shape of the plug main body 16 is approximately within the width of the duct main body 4 when the plug 7 is inserted into the duct main body 4 and is rotationally mounted as described later. Is formed. As shown in FIG.In the embodimentThe plug body 16 has a substantially circular shape when viewed from the front, and its diameter is substantially equal to or smaller than the width of the duct body 4. Here, although the plug main body 16 has a substantially circular shape when viewed from the front, the exposed portion of the outer surface of the operation unit 13 to the outside is on a straight line when viewed from the front. That is, part of the circle of the plug main body 16 is a straight line in the operation portion 13 portion in front view.
[0028]
In the present invention, the plug 7 is attached to the duct body 4 as follows.
[0029]
That is, the insertion portion 15 of the plug 7 is inserted into the opening 3 of the duct body 4. In this case, a pair of plug blades 6 and a pair of locking portions 11 provided in the insertion portion 15 are inserted into the opening 3. Here, as shown by a broken line in FIG. 2, the operation unit 13 is aligned so as to substantially follow the bent base portion of one bent portion 10 of the duct body 4, thereby forming a pair provided in the insertion portion 15. The stopper blade 6 and the pair of locking portions 11 are set so as to be able to be put into the opening 3. Further, when the operation portion 13 is positioned so as to be substantially along the bent base portion of the one bent portion 10 of the duct body 4, the lock portion 12 comes into contact with the outer surface of the one bent portion 10. 7 is pushed against the elastic urging force of the lock portion 12 so that the lock portion 12 is elastically pressed against the outer surface of the bent portion 10 and moves to the plug body 16 side. In this state, by rotating the plug 7 in the direction of the arrow in FIG. 2A, the pair of plug blades 6 come into contact with the pair of conductors 5 as shown in FIG. The plug 7 is attached to the duct body 4 by engaging the bent portions 10 with which the pair 11 is paired from the inside. At this time, by rotating the plug 7 as indicated by the arrow in FIG. 2A, the lock portion 12 slides while being elastically pressed against the outer surface of the bent portion 10, and the plug blade 6 as described above. 1 is brought into contact with the conductor 5 and when the locking portion 11 is locked to the bent portion 10, the lock portion 12 exceeds the tip of the bent portion 10, and the opening portion 3 as shown in FIG. The plug 7 is inserted and locked to the tip of the bent portion 10 to lock the plug 7 to prevent rotation. In addition, when the plug 7 is attached to the duct body 4, the grounding pin 18 contacts the grounding conductor 5 'as shown in FIG.
[0030]
As described above, the insertion portion 15 of the plug 7 is inserted into the opening 3 of the duct body 4 and rotated to contact the plug blade 6 with the conductor 5. Since it is provided so that the position is shifted in the direction, the rotation angle at the time of mounting by insertion rotation to the duct main body 4 can be reduced to improve usability.
[0031]
Here, as shown in FIG. 2, the plug 7 does not protrude in the width direction of the duct body 4 at each stage of insertion, rotation, and mounting of the plug 7 into the opening 3 of the duct body 4. Therefore, the space efficiency of the operation space, the installation space, etc. of the plug 7 is improved, and it is particularly effective as a duct system for an information rack where space efficiency is important.
[0032]
When removing the plug 7, the operation portion 13 is operated against the spring to pull the lock portion 12 toward the plug body 16, thereby releasing the lock. In this state, the plug 7 is rotated in the reverse direction. Then, the contact of the plug blade 6 with the conductor 5 is released, and the locking of the locking portion 11 with the bent portion 10 is released to make the state of the broken line in FIG. 2, and the plug 7 is pulled out in this state and removed. It is something that can be done.
[0033]
  By the way, in the present invention, as described above, the conductors 5 that make a pair in the intermediate portion in the width direction of the duct body 4 are directed to the outside in the width direction of the duct body 4 and the directions of the paired conductors 5 are opposite to each other. The pair of plug blades 6 provided on the plug 7 protrude inward in the width direction of the duct body 4 and the protruding directions of the pair of plug blades 6 are opposite to each other. Thus, since the plug 7 is inserted into the duct body 4 and rotated as described above, the pair of conductors 5 disposed in the intermediate part in the width direction of the duct body 4 and the side wall part 2 facing each other. The width between them becomes narrower than 1/2 of the width of the duct body 4. Therefore, to IEC standardTo adaptWhen making the structure in which the test needle does not contact the conductor 5 from the opening 3 of the duct body 4, the test needle opens without increasing the depth of the duct body 4 or reducing the width of the opening 3 as in the prior art. The structure can be made so as not to contact the conductor from the portion 3. Therefore, the width of the opening 3 can be increased, and the operability for inserting and attaching the plug 7 can be improved. Further, since the duct body 4 does not have to be deepened as in the prior art, the duct body 4 can be thinned and the degree of protrusion of the insertion portion 15 of the plug 7 can be reduced.
[0034]
When separating and recovering when the power supply duct system of the present invention is used and discarded, the synthetic resin conductor holding portion 8 is detachable from the sheet metal duct body 4, so that the sheet metal duct body is provided. 4 can be separated and collected from the conductor holding portion 8 made of synthetic resin, and the conductor 5 is detachably held on the conductor holding portion 8, so that the conductor 5 and the conductor holding made of synthetic resin are held. The part 8 can be easily separated and collected separately. This facilitates resource reuse.
[0035]
In the attached drawings, a description has been given of an example in which two sets of conductors 5 are provided as a set of a plurality of conductors 5 in the middle portion of the duct body 4 in the width direction. The above conductor 5 may be a set. The plug blade 6 may be a set of three or more.
[0036]
Moreover, in embodiment shown in an accompanying drawing, although demonstrated in the example which provided only one set as the conductor 5 which became a set by plural in the intermediate part of the width direction of the duct main body 4, the intermediate | middle of the width direction of the duct main body 4 was demonstrated. Two or more sets (that is, a plurality of sets) may be provided as a plurality of conductors 5 in a part.
[0037]
【The invention's effect】
  As described above, in the invention according to claim 1 of the present invention,The sheet metal duct body has a U-shaped section with a U-shaped cross section made of resin that has a convex part projecting into the duct body by bending the middle part in the width direction of the top surface of the duct body into the duct body. By placing the conductor holding part in close contact over substantially the entire convex part, the conductor is positioned on both side surfaces of the convex part facing both side wall parts of the duct body,Since the plurality of plug blades provided on the plug protrude inward in the width direction of the duct body and one of the plurality of plug blades is in the opposite direction to the other, the test needle is connected to the conductor from the opening. While satisfying the conformity with the IEC standard of not contacting, it is possible to reduce the thickness of the duct body, enlarge the opening, reduce the degree of protrusion of the plug insertion part, and widen the opening. It becomes possible and is easy to useThere is also a U-shaped conductor holding section that has a convex portion protruding in the duct body by bending the widthwise middle part of the top surface of the duct body into the duct body, and holding the conductor on the outer surface on both sides Since the conductor is positioned on both side surfaces of the convex portion facing both side wall portions of the duct body by fitting the portion in close contact over substantially the entire convex portion, a plurality of conductors can be connected to the width of the duct body with a simple configuration. It can be arranged in the middle part in the width direction in the duct body so that one of the plurality of conductors faces in the opposite direction with respect to the other, and the top surface portion of the sheet metal duct body The resin conductor holding part is fitted in close contact over almost the entire convex part that curves the middle part of the resin, so that the contact area of the resin conductor holding part to the sheet metal duct body can be increased. The heat generated in the conductor is efficiently made of sheet metal To be able to escape to the duct body, in which heat can reduce deformation of the conductor holding portion made of resin by being retained.
[0038]
In addition to the effect of the first aspect of the invention, the conductor is held by the resin conductor holding portion, and the conductor holding portion can be attached to and detached from the duct body made of sheet metal. Therefore, insulation and strength can be ensured, and the sheet metal duct main body can be easily separated and collected from the synthetic resin conductor holding portion when separated and collected.
[0039]
Further, in the invention according to claim 3, in addition to the effect of the invention according to claim 2, since the conductor is detachably held on the conductor holding portion, the conductor is made of synthetic resin when separated and collected. It can be easily separated from the made conductor holding part, and the conductor and the synthetic resin made conductor holding part can be separated and collected easily.
[0041]
  Also,Claim 4In the described invention, the aboveClaims 1 to 3In addition to the effect of the invention according to any one of the above, the end of the side wall is bent inward at the edge of the opening of the duct body to form a bent portion, and the opening of the duct body is formed in the plug. When the plug is rotated in the inserted state, a locking portion that locks from the inside to the bent portion of the duct main body is protruded laterally, and a pair of plug blades provided on the plug has a pair of plug blades. Since the position is shifted in the longitudinal direction of the duct main body in contact with a pair of conductors in two pieces, the plug blade and the locking portion forming a pair of plugs are inserted into the opening of the duct main body. By rotating the plug in the state, the paired plug blades can be brought into contact with the paired conductors, and the locking portion can be locked and attached from the inside to the bent portion, and the paired conductors can be contacted. In such a state, the position is shifted in the longitudinal direction of the duct body. Since, in which it is possible to reduce the rotational angle at the time of mounting by insertion rotation in the duct body.
[0042]
  Also,Claim 5In the described invention, the aboveClaim 4In addition to the effects of the described invention, one of the two locking portions is adjacent to one of the plug blades and is opposed to the other blade, and the other locking portion is the other. Since it is provided at a position adjacent to the plug blade and facing one of the plug blades, the plug can be stably mounted on the duct body while the plug is inserted and rotated in the opening of the duct body. .
[0043]
  Also,Claim 6In the described invention, the above-mentioned claims 1 toClaim 5In addition to the effects of the invention described in any of the above, since the plug is provided with a lock portion for preventing rotation of the plug relative to the duct body when being inserted and rotated into the opening of the duct body, the plug is attached to the duct body. Rotation can be prevented by the lock part when inserted and rotated into the opening, and this causes the plug to rotate inadvertently in the installed state, leaving the contact between the plug blade and the conductor, or disconnecting the plug from the duct body. Without plugging, the plug can be securely attached.
[0044]
  Also,Claim 7In the described invention, the aboveClaim 6In addition to the effect of the invention described above, the lock portion provided on the plug can be moved in the same direction as the insertion direction in which the insertion portion of the plug is inserted into the opening of the duct body, and the lock portion serves as the duct insertion portion. In the state where it is inserted into the opening of the main body and rotating, it elastically contacts the outer surface of the bent portion, and the plug insertion portion is inserted into the duct main body and rotated so that the plug blade contacts the conductor and is elastic in the opening. The plug is inserted and rotated into the opening of the duct body so that the lock can be elastically inserted into the opening to prevent the plug from rotating. It can be locked at the same time only by plug insertion and rotation mounting operation, improving operability.
[0045]
  Also,Claim 8In the described invention, the aboveClaim 7In addition to the effects of the described invention, the plug is provided with an operation portion for moving the lock portion against the elastic biasing direction of the lock portion in order to pull out the lock portion inserted into the opening portion from the opening portion. By operating the operation unit, the lock by the lock unit can be easily released, and the operability is improved.
[0046]
  Also,Claim 9In the described invention, the above-mentioned claims 1 toClaim 8In addition to the effects of the described invention, the outer shell shape of the plug is formed so as to be substantially within the width of the duct body when the plug is inserted into the duct body and when it is rotationally mounted. The space efficiency of the operation space, the installation space, etc. is improved, and the effect is particularly great in an information rack duct system in which space efficiency is particularly important.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a state where a plug is attached to a duct body of the present invention.
FIG. 2A is a front view of the above, and FIG. 2B is a side view of the same.
FIG. 3 is a perspective view of a duct body used for the above.
4A is a side view of a duct main body used in the above, FIG. 4B is a front view, FIG. 4C is a plan view, and FIG. 4D is a rear view.
5A is a front view of the plug used in the above, FIG. 5B is a bottom view, FIG. 5C is a plan view, FIG. 5D is a left side view, and FIG. It is a right view, (f) is a rear view.
6A is a cross-sectional view of a duct body, FIG. 6B is a cross-sectional view of a plug attached state, and FIG. 6C is a front view of the plug attached state.
[Explanation of symbols]
1 Top part
2 Side wall
3 openings
4 Duct body
5 Conductor
6 Stopper blade
7 plug
8 Conductor holding part
9 Convex
10 Folding part
11 Locking part
12 Lock part
13 Operation unit

Claims

A duct main body in which side walls are extended from both ends of the top surface part attached to a mounting part such as an information rack and an opening is formed between the front end parts of the opposing side wall parts, and the duct main body is disposed in the duct main body. A duct body having a plurality of pairs of conductors having a length and extending in the longitudinal direction of the duct body, and a plurality of pairs of plug blades that are in electrical contact with the conductors. A power supply duct system including a plug attached to the opening of the sheet metal, and a convex portion projecting into the duct body by bending the middle portion in the width direction of the top surface portion of the sheet metal duct body into the duct body. Of the convex portion facing the both side wall portions of the duct body by closely fitting the U-shaped conductor holding portion made of resin with the conductor held on the outer surfaces on both sides in close contact over substantially the entire convex portion. on both sides to position the conductor, a plurality of plug pins provided in the plug duct Feed duct system, characterized in that one of a plurality of plug pins are made to be opposite direction relative to the other while projecting to the inside of the width direction of the body.

2. The power supply duct system according to claim 1, wherein the conductor is held by a resin conductor holding portion, and the conductor holding portion is detachably provided on a sheet metal duct main body.

The power supply duct system according to claim 2, wherein the conductor is detachably held on the conductor holding portion.

The tip of the side wall is bent inward at the edge of the opening of the duct body to form a bent portion, and the plug is inserted into the opening of the duct body and the plug is rotated in the inserted state. In the state where the locking portion that locks from the inside to the bent portion of the duct body protrudes from the side, and the two plug blades provided on the plug are in contact with the two conductors. The feed duct system according to any one of claims 1 to 3, characterized in that the position is shifted in the longitudinal direction of the duct body.

One locking portion is adjacent to one plug blade of a pair of plug blades and is opposed to the other plug blade, and the other locking portion is adjacent to the other plug blade and one plug blade The power supply duct system according to claim 4, wherein the power supply duct system is provided at a position facing the blade.

The power supply duct according to any one of claims 1 to 5, wherein the plug is provided with a lock portion for preventing the plug from rotating relative to the duct main body when being inserted and rotated into the opening of the duct main body. system.

The lock part provided on the plug is movable in the same direction as the insertion direction in which the plug insertion part is inserted into the opening of the duct body, and the lock part is rotated by inserting the plug insertion part into the opening of the duct body. Elastically energized so as to elastically enter the opening with the plug blade in contact with the conductor while elastically contacting the outer surface of the bent portion and rotating the plug insertion portion into the duct body. The power supply duct system according to claim 6, wherein

8. The plug is provided with an operation portion for moving the lock portion against an elastic biasing direction of the lock portion in order to pull out the lock portion inserted into the opening portion from the opening portion. Feed duct system.

The outer shell of the plug is formed so as to be substantially within the width of the duct body when the plug is inserted into the duct body and when it is rotationally mounted. The feed duct system described.