JP2004221033A - Table tap - Google Patents

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Publication number
JP2004221033A
JP2004221033A JP2003010284A JP2003010284A JP2004221033A JP 2004221033 A JP2004221033 A JP 2004221033A JP 2003010284 A JP2003010284 A JP 2003010284A JP 2003010284 A JP2003010284 A JP 2003010284A JP 2004221033 A JP2004221033 A JP 2004221033A
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JP
Japan
Prior art keywords
blade
insertion hole
outer shell
blade insertion
door
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP2003010284A
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Japanese (ja)
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JP4126489B2 (en
Inventor
Takeshi Suzuki
健 鈴木
Masuo Kitamura
満寿雄 北村
Atsushi Kawai
淳 河合
Yoshimitsu Tsukawaki
義光 塚脇
Koji Higashide
浩二 東出
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to JP2003010284A priority Critical patent/JP4126489B2/en
Publication of JP2004221033A publication Critical patent/JP2004221033A/en
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Publication of JP4126489B2 publication Critical patent/JP4126489B2/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a table tap installable in a small space, and capable of preventing intrusion of dust and dirt from a plug blade insertion hole. <P>SOLUTION: The plug blade insertion holes 41a each used for inserting a plug blade of a plug are formed on one side face and the other side face of surfaces in the height direction of an outer shell 1 formed into a box body having the height direction smaller than the width direction (both side direction); nearly rectangular door parts 50 and plate springs 51 are interlaid between socket covers 41 and an inner body 40 to close the opening end inside each insertion hole 41a by the door part 50 when the plug blade is not inserted into the insertion hole 41a; when the plug blade is inserted into the insertion hole 41a, the door part 50 moves against spring force of the plate spring 51 by the pressing force of the plug blade to open the opening end inside the insertion hole 41a. One-side plug blade passes the outside of the door part 50, the other-side plug blade passes a hole 50d, and they are respectively inserted into blade receiving springs 31a through plug blade insertion slots 43. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は、テーブルタップに関するものである。
【0002】
【従来の技術】
従来のテーブルタップとしては図24に示すように、幅方向(両側方向)よりも高さ方向が短い略矩形の函体に形成された合成樹脂製の外殻100を備えて、外郭100の上面(幅方向の面)に設けた2つのコンセント口101には矩形状の栓刃挿入孔101aが1対づつ形成されており、外郭100の一端からはブッシング102を介して電源コード103が導入されており、電源コード103を介して外部の商用電源から給電される。しかしプラグPを接続した場合に、上面に接続したプラグPの出っ張りX2によって狭いスペースに設置することができなかった。
【0003】
そこで、外郭1の高さ方向の面である側面にコンセント口を設けたテーブルタップが提案されていた。(例えば、特許文献1参照。)
【0004】
【特許文献1】
特開2002−237361号公報(3頁左欄第12行〜第13行、図1、図2)
【0005】
【発明が解決しようとする課題】
しかし、上記特許文献1に記載のテーブルタップはプラグを接続した場合でも狭いスペースに設置できるものの、栓刃挿入孔にプラグが挿入されていない場合、ホコリやゴミが外郭の内部に侵入する恐れがあった。
【0006】
本発明は、上記事由に鑑みてなされたものであり、その目的は、狭いスペースに設置できるとともに栓刃挿入孔からのホコリやゴミの侵入を防止したテーブルタップを提供することにある。
【0007】
【課題を解決するための手段】
請求項1の発明は、幅方向よりも高さ方向が短い外郭と、前記外郭の高さ方向の面に設けられてプラグの栓刃が挿入される栓刃挿入孔と、前記外郭に収納されて前記各栓刃挿入孔から内部に挿入された栓刃を受ける刃受けばねを有すると共に外部電源から電線を介して給電される複数の端子板と、前記栓刃挿入孔に挿入される栓刃の押圧力によって前記栓刃挿入孔のいずれかの開口端側に位置する扉部を移動させる挿入孔開閉手段とを備え、前記扉部は、栓刃を前記栓刃挿入孔に挿入していないときには前記栓刃挿入孔を閉じる位置にあり、栓刃を前記栓刃挿入孔に挿入したときには前記栓刃挿入孔を開く位置に移動することを特徴とする。
【0008】
請求項2の発明は、請求項1において、前記挿入孔開閉手段は、前記栓刃挿入孔に挿入された栓刃が当接し、該当接した栓刃の押圧力を前記栓刃挿入孔を開く位置に移動するための力に変換する当接部を有する前記扉部と、プラグに設けた複数の栓刃に挟まれない位置に配置されるとともに前記扉部に圧接して、栓刃を前記栓刃挿入孔に挿入していないときに前記扉部を前記栓刃挿入孔を閉じる位置に移動させる力を付勢する金属ばねとから構成されることを特徴とする。
【0009】
請求項3の発明は、請求項1または2において、前記外郭から引き出された電線の外周を覆って内部の芯線の屈曲による断線を防止するとともに、前記外郭内に固定するための固定部を側面に具備するブッシング部を備えることを特徴とする。
【0010】
請求項4の発明は、請求項3において、前記ブッシング部は前記外郭の外面に係止して取り付けられる面状の弁部を具備することを特徴とする。
【0011】
請求項5の発明は、請求項1乃至4いずれかにおいて、前記外郭は前記栓刃挿入孔を備えていない面に形成した凹部に嵌め込まれた化粧板を具備し、前記ブッシング部はその端部が前記凹部の一端に臨むように取り付けられて前記化粧板の側端の一部を露出させる切り欠きを設けたことを特徴とする。
【0012】
請求項6の発明は、請求項1乃至4いずれかにおいて、前記外郭は前記栓刃挿入孔を備えていない面に形成した溝部を摺動する化粧板を具備し、前記化粧板は構造物に設けた突起に掛止する孔を設けたことを特徴とする。
【0013】
請求項7の発明は、請求項1乃至6いずれかにおいて、前記外郭は函体に形成されて、高さ方向の4つの面のうち3面に栓刃挿入孔を備え、残りの1面に前記外郭から引き出された電線の外周を覆って内部の芯線の屈曲による断線を防止するブッシング部を設けたことを特徴とする。
【0014】
請求項8の発明は、請求項1乃至6いずれかにおいて、前記外郭は函体に形成されて、高さ方向の4つの面のうち2面に栓刃挿入孔を備え、1面に前記外郭から引き出された電線の外周を覆って内部の芯線の屈曲による断線を防止するブッシング部を設け、前記外郭内の残りの1面側に前記刃受けばねへの給電をオン・オフするスイッチを収納したことを特徴とする。
【0015】
請求項9の発明は、請求項1乃至6いずれかにおいて、前記外郭は函体に形成されて、高さ方向の4つの面のうち2面に栓刃挿入孔を備え、1面に前記外郭から引き出された電線の外周を覆って内部の芯線の屈曲による断線を防止するブッシング部を設け、前記外郭内の残りの1面側にトラッキング現象の発生時に前記刃受けばねへの給電を遮断する手段を収納したことを特徴とする。
【0016】
請求項10の発明は、請求項1乃至6いずれかにおいて、前記外郭は函体に形成されて、高さ方向の4つの面のうち2面に栓刃挿入孔を備え、1面に前記外郭から引き出された電線の外周を覆って内部の芯線の屈曲による断線を防止するブッシング部を設け、前記外郭内の残りの1面側に過電流検知時に前記刃受けばねへの給電を遮断する手段を収納したことを特徴とする。
【0017】
【発明の実施の形態】
以下、本発明の実施の形態を図面に基づいて説明する。
【0018】
本実施形態は、図1〜図4に示すように、合成樹脂製のカバー10およびボディ20からなる外殻1を備え、外郭1は幅方向(両側方向)よりも高さ方向が短い略矩形の細長の函体に形成されており、その内部には、プラグの栓刃を受ける3つの刃受けばね31を各々有する2つの端子板30a,30bと、端子板30a、30bを納装する合成樹脂製の中ボディ40とが収納されている。そして、外部の商用電源(図示なし)からの電源コード3の端末が、外殻1の一端側に取着したブッシング60を介して外殻1内部に導入され、端子板30a,30bには電源コード3を介して外部の商用電源から通電される。またカバー10およびボディ20の外面には化粧板5が各々取り付けられている。
【0019】
端子板30a,30bは各々一枚の金属板を折り曲げることで形成され、電源コード3の芯線3a,3aに接続される端子片32,32を長手方向の一端側に各々備える。各端子板30a,30bに各々設けた3つの刃受けばね31は、各々一枚の栓刃を挟み込んで電気的に接触する2つの接触片31aからなり、うち2つの刃受けばね31は各端子板30a,30bの長手方向に沿って外郭1の一方の側面(すなわち高さ方向の面)に向かって配列し、残りの1つの刃受けばね31は外郭1の他端面(すなわち高さ方向の面)に向かって各端子板30a,30bの長手方向の他端側に配されている。
【0020】
中ボディ40は、一面を開口して長辺側と短辺側とを備える略L字型に形成されており、底面には内部に収められる端子板30a,30bを各々絶縁隔離するための複数の隔離壁42が形成されている。略L字型の中ボディ40の長辺側にはプラグの栓刃が挿入される1対2組の栓刃挿入溝43が外郭1の一方の側面に向かって形成され、略L字型の中ボディ40の短辺側には1対の栓刃挿入溝43が外郭1の他端面に向かって形成されており、各栓刃挿入溝43の内側には刃受けばね31が位置している。
【0021】
カバー10およびボディ20は、各々一面を開口した略矩形の函体に形成され、外殻1は、ボディ20にカバー10を各々の周縁部が当接するように取り付け、カバー10に設けた2つのねじ孔11を挿通させた組立ねじ6をボディ20の内底面上に設けた2つの円柱状のリブ21の軸方向に各々形成したねじ孔21aに螺合させることで構成される。
【0022】
外郭1の一方の側面には、表裏に貫通して後述する受口カバー41を露出する略矩形の露出孔が2つ形成されるとともに、外郭1の他端面には、表裏に貫通して受口カバー41を露出する略矩形の露出孔が1つ形成されており、各露出孔の内側には中ボディ40の栓刃挿入溝43が一対づつ各々位置している。
【0023】
受口カバー41は、裏面の上下辺略中央に各々設けた係止片41bを中ボディ40の栓刃挿入溝43の間に位置する切欠部44に係止させることで、中ボディ40の栓刃挿入溝43周辺を覆うように取り付けられる。各受口カバー41には矩形状の栓刃挿入孔41aが1対形成されており、栓刃挿入孔41aは中ボディ40の栓刃挿入溝43を介して刃受けばね31に通じている。
【0024】
図5は本実施形態のテーブルタップの使用状態を示しており、幅方向(両側方向)よりも高さ方向が短い函体に形成された外郭1の高さ方向の面である一方の側面と他端面とにプラグPの栓刃を挿入する栓刃挿入孔41aを設けているので、プラグPの栓刃を挿入した場合でも高さ方向の長さX1を一辺とするスペースがあれば設置でき、狭いスペースでも設置可能となる。
【0025】
また本実施形態のテーブルタップは、受口カバー41と中ボディ40との間に介装された略矩形の扉部50とさらばね51とで挿入孔開閉手段を構成している。この扉部50は、栓刃を栓刃挿入孔41aに挿入していないときには栓刃挿入孔41aを閉じる位置に移動し、栓刃を栓刃挿入孔41aに挿入したときには栓刃挿入孔41aを開く位置に移動するものであり、以下、この挿入孔開閉手段について説明する。
【0026】
図6、図7は受口カバー41への扉部50とさらばね51との取り付けを示しており、受口カバー41はその裏面に略矩形の凹部41dを形成しており、扉部50は、凹部41dの底面上に形成した突片41fが扉部50に穿設した孔50dに挿通した状態で凹部41d内に収納される。さらばね51は金属片の両端部51a,51aを同方向に折曲した形状を有しており、その両端部51aが扉部51の一端側に当接するように凹部41dの一端側に収納される。
【0027】
次に図8(a)は図7を上面から見た断面図であり、栓刃を栓刃挿入孔41aに挿入していないとき扉部50はさらばね51の両端部51aのばね力によって凹部41dの他端側に移動して、孔50dの一端側が突片41fに係止し、栓刃挿入孔41aの内側の開口端は扉部50によって閉じた状態となる。
【0028】
図8(b)は栓刃P1,P2を栓刃挿入孔41aに挿入した時の図である。栓刃P1,P2を栓刃挿入孔41aに挿入していないとき(図8(a)参照)、扉部50の栓刃挿入孔41aに対向する扉部50の両端部は一端側から他端側に向かって奥に傾斜した傾斜部50a,50eを各々形成して栓刃挿入孔41aを閉じている。栓刃P1,P2を栓刃挿入孔41aに挿入すると栓刃P1,P2が傾斜部50a,50eに当接し、傾斜部50a,50eに加えられた栓刃P1,P2の押圧力は、扉部50を押圧力に対して略垂直方向に移動させる力に変換されて、扉部50はさらばね51の両端部51aのばね力に抗して一端側に移動する。そして、扉部50の他端側と孔50dの一端側とが栓刃P1,P2に各々係止して、栓刃挿入孔41aの内側の開口端は開いた状態となり、栓刃挿入孔41aに挿入された栓刃P1は扉部50の他端側外部を通り、栓刃P2は孔50dを通り、さらに栓刃挿入溝43を各々介して、刃受けばね31aに挿入される。
【0029】
栓刃P1,P2を引き抜くと、扉部50はさらばね51の両端部51aのばね力によって凹部41dの他端側に再び移動して、栓刃挿入孔41aの内側の開口端を閉じる。このように栓刃P1,P2を栓刃挿入孔41aに挿入していないときは扉部50が栓刃挿入孔41aの内側開口端を閉じることによって、栓刃挿入孔41aから外郭1内へのホコリやゴミの侵入を防止している。
【0030】
ここで、傾斜部50eのみに栓刃P2が当接した場合は図8(a)の2点鎖線50’に示すように、扉部50は上下方向を軸として回転し、扉部50の表面の他端側に形成された凸部50bが栓刃挿入孔41aの内側の一端側を切り欠いたストッパ部41cに係止して、扉部50の移動が抑制されてプラグPの挿入を防止する。傾斜部50aのみに栓刃P1が当接した場合も図8(a)の2点鎖線50’’に示すように、扉部50は上下方向を軸として回転し、扉部50の表面の一端側に形成された凸部50cが栓刃挿入孔41aの内側の一端側を切り欠いたストッパ部41dに係止する。
【0031】
また図9に示すように、さらばね51は受口カバー41の裏面の凹部41dの一端側に収納されており、栓刃P1,P2の間には他の金属部品もないため、トラッキング現象による絶縁破壊が起こり難い構造となっている。
【0032】
次に図4(a)、図10を用いて外郭1へのブッシング60の取り付けについて説明する。ブッシング60は外郭1から引き出された電源コード3の外周を覆って内部の芯線3aの屈曲による断線を防止するもので、その一端側は筒状を成し、他端側は外郭1に固定するための構造を有して、他端側から一端側にかけて滑らかに細くなっている。外殻1の一端側は電源コード3を導入するための開口を形成されており、ブッシング60はその開口に覆設される。ブッシング60の他端の両側面には、半円弧状の凸部63(固定部)が両側方向に突出しており、凸部63が外郭1の一端側の開口内側の周縁に係止することで外郭1に固定される。
【0033】
また図11、図12に示すように、ブッシング60の他端側上下部には他端方向に延びた矩形状の弁61が形成されている。またカバー10の表面には一端側を開放して形成された凹部14の一端に凹部15を設けており、凹部15の底面上には3つの突起13が形成されている。そして弁61は凹部15に嵌め込まれると共に、弁61に形成された3つの孔61aに突起13を挿通させて、次にカバー10の凹部14,15に化粧板5が嵌め込まれる。ボディ20側も同様である。
【0034】
ここで、ブッシング60の取り付け部を側面から見た拡大断面である図13に示すように弁61は、カバー10と化粧板5との間、およびボディ20と化粧板5との間に各々位置しており、電源コード3を上下方向に折り曲げたときに外郭1とブッシング60との間(S部)に発生するすきまを弁61によって隠すことができ、さらに弁61に形成された3つの孔61aに突起13を挿通して係止させることで、発生するすきまを低減させている。
【0035】
化粧板5はその両側に各2つづつの計4つの係止片5aを備え、他端に1つの係止片5bを備える。またカバー10の凹部14はその両側に各2つの計4つの係止孔10aを備え、他端に1つの係止孔10bを備える。そして、係止片5bを係止孔10bに係止させた状態で係止片5aを係止孔10aに係止させることで、化粧板5をカバー10に取り付けることができる。ボディ20への化粧板5の取り付けも同様である。
【0036】
上述のように取り付けた化粧板5は、図14に示すように一端側をブッシング60、他端側および両側をカバー10の凹部14の壁面に囲まれて位置しており、取り外す際は図15に示すように、化粧板5の一端を臨むブッシング60の他端に化粧板5の側端を露出させる切り欠き62を設け、この切り欠き62にドライバーD等を挿入して矢印方向に回転させることによって、簡単に取り外すことができる。ボディ20からの化粧板5の取り外しも同様である。
【0037】
また、化粧板5として図16に示すようにだるま型の孔5cを他端側に設けたものを用いてもよい。この場合図17に示すように、ボディ2の両端方向には両端を開口した溝部22が形成されて、その一端側にはブッシング60が前記同様に取り付けられている。溝部22はその両側の一端側、略中央、他端側に、各3つの計6つの係止孔20aを備えており、図18に示すように化粧板5の両側の一端側、略中央に備えた係止片5aを、溝部22の略中央と他端側の係止孔20aに各々係止させることで、化粧板5の他端側がボディ20の外部に突出する。
そして孔5cを構造物等に設けた突起に掛止させることで、簡易用フックとして利用することができる。
【0038】
上記実施形態では、外郭1の一方の側面に2つの栓刃挿入孔41aを設け、他端面に1つの栓刃挿入孔41aを設けた3口のテーブルタップについて説明したが、図19に示される外郭1の他方の側面側に空いている内部スペースCを利用して、図20(a)〜(d)に示すように外郭1の他方の側面にも2つの栓刃挿入孔41aを設けて5口のテーブルタップを構成したり、あるいは図21に示すように全ての刃受けばね31aへの給電をオン・オフして、全てのコンセント口を一括してオン・オフできるスイッチSW1を設けたり、あるいは図22に示すようにトラッキング現象の発生時に刃受けばね31aへの給電を遮断するトラッキング防止用ブレーカを収容して外郭1の上面にブレーカリセットスイッチSW2を設けたり、あるいは図23に示すように過電流を検出時に刃受けばね31aへの給電を遮断する過電流検知ブレーカを収容して外郭1の上面に過電流検知ブレーカリセットスイッチSW3を設けるとともに、通電電流が5A時に点灯する電流値表示ランプLa1、10A時に点灯する電流値表示ランプLa2、15A時に点灯する電流値表示ランプLa3を設けてもよい。
【0039】
【発明の効果】
請求項1の発明は、幅方向よりも高さ方向が短い外郭と、前記外郭の高さ方向の面に設けられてプラグの栓刃が挿入される栓刃挿入孔と、前記外郭に収納されて前記各栓刃挿入孔から内部に挿入された栓刃を受ける刃受けばねを有すると共に外部電源から電線を介して給電される複数の端子板と、前記栓刃挿入孔に挿入される栓刃の押圧力によって前記栓刃挿入孔のいずれかの開口端側に位置する扉部を移動させる挿入孔開閉手段とを備え、前記扉部は、栓刃を前記栓刃挿入孔に挿入していないときには前記栓刃挿入孔を閉じる位置にあり、栓刃を前記栓刃挿入孔に挿入したときには前記栓刃挿入孔を開く位置に移動するので、プラグを接続した場合でも狭いスペースに設置できるとともに、プラグを接続していない場合には栓刃挿入孔から内部へのホコリやゴミの侵入を防止することができるという効果がある。
【0040】
請求項2の発明は、請求項1において、前記挿入孔開閉手段は、前記栓刃挿入孔に挿入された栓刃が当接し、該当接した栓刃の押圧力を前記栓刃挿入孔を開く位置に移動するための力に変換する当接部を有する前記扉部と、プラグに設けた複数の栓刃に挟まれない位置に配置されるとともに前記扉部に圧接して、栓刃を前記栓刃挿入孔に挿入していないときに前記扉部を前記栓刃挿入孔を閉じる位置に移動させる力を付勢する金属ばねとから構成されるので、プラグの栓刃の間に金属ばねがなく、トラッキング現象による絶縁破壊が発生し難いという効果がある。
【0041】
請求項3の発明は、請求項1または2において、前記外郭から引き出された電線の外周を覆って内部の芯線の屈曲による断線を防止するとともに、前記外郭内に固定するための固定部を側面に具備するブッシング部を備えるので、ブッシング部の端部に固定部を備えたテーブルタップに比べて、長さを短くすることができるという効果がある。
【0042】
請求項4の発明は、請求項3において、前記ブッシング部は前記外郭の外面に係止して取り付けられる面状の弁部を具備するので、ブッシング部が曲がったときに外郭とブッシングとの間に発生するすきまを弁によって隠すことができ、さらに弁を外郭の外面に係止させることで発生するすきまを低減させることができるという効果がある。
【0043】
請求項5の発明は、請求項1乃至4いずれかにおいて、前記外郭は前記栓刃挿入孔を備えていない面に形成した凹部に嵌め込まれた化粧板を具備し、前記ブッシング部はその端部が前記凹部の一端に臨むように取り付けられて前記化粧板の側端の一部を露出させる切り欠きを設けたので、化粧板を容易に取り外すことができるという効果がある。
【0044】
請求項6の発明は、請求項1乃至4いずれかにおいて、前記外郭は前記栓刃挿入孔を備えていない面に形成した溝部を摺動する化粧板を具備し、前記化粧板は構造物に設けた突起に掛止する孔を設けたので、化粧板を外郭からずらして孔を突起に引っ掛ければ、簡易フックとして利用できるという効果がある。
【0045】
請求項7の発明は、請求項1乃至6いずれかにおいて、前記外郭は函体に形成されて、高さ方向の4つの面のうち3面に栓刃挿入孔を備え、残りの1面に前記外郭から引き出された電線の外周を覆って内部の芯線の屈曲による断線を防止するブッシング部を設けたので、外郭内部のスペースを有効利用して、5口のテーブルタップを構成することができるという効果がある。
【0046】
請求項8の発明は、請求項1乃至6いずれかにおいて、前記外郭は函体に形成されて、高さ方向の4つの面のうち2面に栓刃挿入孔を備え、1面に前記外郭から引き出された電線の外周を覆って内部の芯線の屈曲による断線を防止するブッシング部を設け、前記外郭内の残りの1面側に前記刃受けばねへの給電をオン・オフするスイッチを収納したので、外郭内部のスペースを有効利用して、コンセント口への給電をオン・オフするスイッチを収納できるという効果がある。
【0047】
請求項9の発明は、請求項1乃至6いずれかにおいて、前記外郭は函体に形成されて、高さ方向の4つの面のうち2面に栓刃挿入孔を備え、1面に前記外郭から引き出された電線の外周を覆って内部の芯線の屈曲による断線を防止するブッシング部を設け、前記外郭内の残りの1面側にトラッキング現象の発生時に前記刃受けばねへの給電を遮断する手段を収納したので、外郭内部のスペースを有効利用して、トラッキング現象の発生時にコンセント口への給電を遮断する手段を収納できるという効果がある。
【0048】
請求項10の発明は、請求項1乃至6いずれかにおいて、前記外郭は函体に形成されて、高さ方向の4つの面のうち2面に栓刃挿入孔を備え、1面に前記外郭から引き出された電線の外周を覆って内部の芯線の屈曲による断線を防止するブッシング部を設け、前記外郭内の残りの1面側に過電流検知時に前記刃受けばねへの給電を遮断する手段を収納したので、外郭内部のスペースを有効利用して、過電流検知時にコンセント口への給電を遮断する手段を収納できるという効果がある。
【図面の簡単な説明】
【図1】本発明の実施形態のテーブルタップの分解斜視図である。
【図2】同上の上面側から見た斜視図である。
【図3】同上の下面側から見た斜視図である。
【図4】(a)同上のカバー10を取り外した上面図である。
(b)同上の一方の側面図である。
(c)同上の下面図である。
(d)同上の他方の側面図である。
(e)同上の端面図である。
【図5】同上のプラグを挿入した状態を示す斜視図である。
【図6】受口カバーへの扉部とさらばねとの取り付けを示す分解斜視図である。
【図7】受口カバーへの扉部とさらばねとの取り付けを示す斜視図である。
【図8】(a)図7を上面から見た断面図である。
(b)(a)においてプラグを挿入したときの断面図である。
【図9】受口カバーに扉部とさらばねとを取り付けてプラグを挿入した状態を示す斜視図である。
【図10】本発明の実施形態のテーブルタップの側面断面図である。
【図11】同上の上面側から見た一部分解斜視図である。
【図12】同上の上面側から見た一部分解斜視図である。
【図13】ブッシング取り付け部の一部拡大断面図である。
【図14】本発明の実施形態のテーブルタップの上面側から見た斜視図である。
【図15】図14の一部拡大断面図である。
【図16】本発明の実施形態の別のテーブルタップの上面側から見た斜視図である。
【図17】同上の上面側から見た一部分解斜視図である。
【図18】同上の化粧枠の位置を変更した斜視図である。
【図19】本発明の実施形態のテーブルタップのカバーを取り外して上面側から見た斜視図である。
【図20】(a)本発明の実施形態の5口テーブルタップの上面図である。
(b)同上の一方の側面図である。
(c)同上の他方の側面図である。
(d)同上の端面図である。
【図21】本発明の実施形態のスイッチ付きのテーブルタップの斜視図である。
【図22】本発明の実施形態のトラッキング防止用ブレーカ付きのテーブルタップの斜視図である。
【図23】本発明の実施形態の過電流検知ブレーカ付きのテーブルタップの斜視図である。
【図24】従来のテーブルタップの斜視図である。
【符号の説明】
1 外郭
10 カバー
20 ボディ
30a,30b 端子板
31 刃受けばね
40 中ボディ
41 受口カバー
41a 栓刃挿入孔
43 栓刃挿入溝
50 扉部
51 さらばね
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a table tap.
[0002]
[Prior art]
As shown in FIG. 24, a conventional table tap includes a synthetic resin outer shell 100 formed in a substantially rectangular box whose height direction is shorter than the width direction (both sides). A pair of rectangular blade insertion holes 101a are formed in the two outlets 101 provided on the (widthwise surface), and a power cord 103 is introduced from one end of the outer shell 100 via a bushing 102. Power is supplied from an external commercial power supply via a power cord 103. However, when the plug P was connected, it could not be installed in a narrow space due to the protrusion X2 of the plug P connected to the upper surface.
[0003]
Therefore, a table tap having an outlet provided on a side surface, which is a surface in the height direction of the outer shell 1, has been proposed. (For example, refer to Patent Document 1.)
[0004]
[Patent Document 1]
JP-A-2002-237361 (page 12, left column, lines 12 to 13, FIGS. 1 and 2)
[0005]
[Problems to be solved by the invention]
However, although the table tap described in Patent Document 1 can be installed in a narrow space even when a plug is connected, if the plug is not inserted into the blade insertion hole, there is a possibility that dust and dirt may enter the inside of the outer shell. there were.
[0006]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a table tap that can be installed in a small space and that prevents dust and dust from entering from a blade insertion hole.
[0007]
[Means for Solving the Problems]
The invention according to claim 1 is an outer shell whose height direction is shorter than the width direction, a blade insertion hole provided on a surface in a height direction of the outer shell, into which a plug blade of a plug is inserted, and housed in the outer shell. A plurality of terminal plates having a blade receiving spring for receiving a blade inserted from each of the blade insertion holes and being supplied with power from an external power supply via an electric wire; and a blade inserted into the blade insertion hole. Insertion hole opening / closing means for moving a door portion located on one of the opening end sides of the blade insertion hole by the pressing force of the blade, wherein the door portion does not insert a blade into the blade insertion hole. Sometimes, the blade insertion hole is at a position where the blade insertion hole is closed, and when the blade is inserted into the blade insertion hole, the blade moves to a position where the blade insertion hole is opened.
[0008]
According to a second aspect of the present invention, in the first aspect, the insertion hole opening / closing means contacts the blade inserted in the blade insertion hole and opens the blade insertion hole by pressing the blade in contact with the blade. The door portion having a contact portion that converts to a force for moving to a position, and is disposed at a position that is not sandwiched by a plurality of blades provided on a plug, and is pressed against the door portion to press the blade. A metal spring for urging a force to move the door to a position to close the blade insertion hole when the door is not inserted into the blade insertion hole.
[0009]
According to a third aspect of the present invention, in the first or second aspect, a fixing portion for covering the outer periphery of the electric wire drawn from the outer shell to prevent disconnection due to bending of the inner core wire and fixing the fixing portion to the inside of the outer shell. And a bushing section provided in the above.
[0010]
A fourth aspect of the present invention is characterized in that, in the third aspect, the bushing portion includes a planar valve portion which is fixedly attached to an outer surface of the outer shell.
[0011]
According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the outer shell includes a decorative plate fitted into a concave portion formed on a surface not provided with the blade insertion hole, and the bushing portion has an end portion. Is provided so as to face one end of the concave portion, and a cutout for exposing a part of a side end of the decorative board is provided.
[0012]
According to a sixth aspect of the present invention, in any one of the first to fourth aspects, the outer shell includes a decorative plate that slides in a groove formed on a surface not provided with the blade insertion hole, and the decorative plate is provided on a structure. It is characterized in that a hole is provided for engaging with the provided projection.
[0013]
According to a seventh aspect of the present invention, in any one of the first to sixth aspects, the outer shell is formed in a box, and a blade insertion hole is provided on three of the four surfaces in the height direction, and the remaining one is provided on the other surface. A bushing is provided to cover the outer periphery of the electric wire drawn from the outer shell and to prevent disconnection due to bending of the inner core wire.
[0014]
According to an eighth aspect of the present invention, in any one of the first to sixth aspects, the outer shell is formed in a box, and a blade insertion hole is provided on two of four surfaces in a height direction, and the outer shell is provided on one surface. A bushing portion is provided to cover the outer periphery of the electric wire drawn out of the housing to prevent disconnection due to bending of the inner core wire, and a switch for turning on / off power supply to the blade receiving spring is housed on the remaining one surface side in the outer shell. It is characterized by having done.
[0015]
According to a ninth aspect of the present invention, in any one of the first to sixth aspects, the outer shell is formed in a box, and two of the four surfaces in the height direction have a blade insertion hole, and the outer shell is formed on one surface. A bushing is provided to cover the outer periphery of the electric wire drawn out of the housing to prevent disconnection due to bending of the inner core wire, and to cut off power supply to the blade receiving spring when a tracking phenomenon occurs on the remaining one surface side in the outer shell. The means is housed.
[0016]
According to a tenth aspect of the present invention, in any one of the first to sixth aspects, the outer shell is formed in a box, and a blade insertion hole is provided on two of four surfaces in a height direction, and the outer shell is provided on one surface. A bushing for covering the outer periphery of the electric wire drawn out of the housing to prevent disconnection due to bending of the inner core wire, and means for interrupting power supply to the blade receiving spring when overcurrent is detected on the remaining one surface side in the outer shell Is stored.
[0017]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0018]
As shown in FIGS. 1 to 4, the present embodiment includes an outer shell 1 made of a synthetic resin cover 10 and a body 20, and the outer shell 1 is a substantially rectangular shape whose height direction is shorter than the width direction (both sides). And two terminal plates 30a, 30b each having three blade receiving springs 31 for receiving the plug blades of the plug, and a terminal box 30a, 30b. A resin middle body 40 is housed. Then, a terminal of the power cord 3 from an external commercial power supply (not shown) is introduced into the inside of the outer shell 1 via a bushing 60 attached to one end of the outer shell 1, and power is supplied to the terminal plates 30a and 30b. Power is supplied from an external commercial power supply via the cord 3. Further, decorative plates 5 are attached to outer surfaces of the cover 10 and the body 20, respectively.
[0019]
Each of the terminal plates 30a and 30b is formed by bending a single metal plate, and has terminal pieces 32 and 32 connected to the core wires 3a and 3a of the power cord 3 at one end in the longitudinal direction. The three blade receiving springs 31 provided on each of the terminal plates 30a and 30b are each composed of two contact pieces 31a that sandwich one plug blade and are in electrical contact with each other, of which two blade receiving springs 31 are connected to each terminal. The blades 30 are arranged along one longitudinal direction of the plates 30a and 30b toward one side surface (ie, the surface in the height direction) of the outer shell 1, and the other blade receiving spring 31 is connected to the other end surface of the outer shell 1 (ie, in the height direction). Surface) is disposed on the other end side in the longitudinal direction of each terminal plate 30a, 30b.
[0020]
The middle body 40 is formed in a substantially L-shape having one side opened and a long side and a short side, and a plurality of bottoms for insulating and isolating the terminal plates 30a and 30b housed therein. Is formed. On the long side of the substantially L-shaped middle body 40, one to two sets of blade insertion grooves 43 into which the plug blades of the plug are inserted are formed toward one side surface of the outer shell 1, and are substantially L-shaped. A pair of blade insertion grooves 43 is formed on the short side of the middle body 40 toward the other end surface of the outer shell 1, and the blade receiving spring 31 is located inside each blade insertion groove 43. .
[0021]
The cover 10 and the body 20 are each formed in a substantially rectangular box having an open surface, and the outer shell 1 is provided with two covers provided on the body 10 such that the cover 10 is attached to the body 20 so that the peripheral portions thereof abut. An assembly screw 6 having the screw hole 11 inserted therein is screwed into a screw hole 21 a formed in the axial direction of two cylindrical ribs 21 provided on the inner bottom surface of the body 20.
[0022]
On one side surface of the outer shell 1, two substantially rectangular exposure holes that penetrate the front and back to expose a receiving cover 41, which will be described later, are formed. One substantially rectangular exposure hole exposing the mouth cover 41 is formed, and a pair of blade insertion grooves 43 of the middle body 40 are located inside each of the exposure holes.
[0023]
The receiving cover 41 locks the locking pieces 41 b provided substantially at the centers of the upper and lower sides of the back surface into the cutouts 44 located between the blade insertion grooves 43 of the middle body 40, so that the plug of the middle body 40 is plugged. It is attached so as to cover the periphery of the blade insertion groove 43. A pair of rectangular blade insertion holes 41 a is formed in each receiving cover 41, and the blade insertion holes 41 a communicate with the blade receiving springs 31 through the blade insertion grooves 43 of the middle body 40.
[0024]
FIG. 5 shows a use state of the table tap of the present embodiment, and one side surface which is a surface in the height direction of the outer shell 1 formed in a box whose height direction is shorter than the width direction (both sides). Since the blade insertion hole 41a for inserting the blade of the plug P is provided on the other end surface, even if the blade of the plug P is inserted, it can be installed if there is a space having the length X1 in the height direction as one side. It can be installed even in a narrow space.
[0025]
In addition, the table tap of the present embodiment forms an insertion hole opening / closing means by a substantially rectangular door portion 50 and a flat spring 51 interposed between the receptacle cover 41 and the middle body 40. When the blade is not inserted into the blade insertion hole 41a, the door 50 moves to a position where the blade insertion hole 41a is closed, and when the blade is inserted into the blade insertion hole 41a, the blade insertion hole 41a is moved. It moves to the open position. Hereinafter, the insertion hole opening / closing means will be described.
[0026]
6 and 7 show the attachment of the door 50 and the flat spring 51 to the receiving cover 41. The receiving cover 41 has a substantially rectangular concave portion 41d on the back surface thereof. The projection 41f formed on the bottom surface of the concave portion 41d is housed in the concave portion 41d in a state of being inserted into a hole 50d formed in the door portion 50. The flat spring 51 has a shape obtained by bending both ends 51a of the metal piece in the same direction, and is housed at one end of the concave portion 41d such that the both ends 51a contact one end of the door 51. You.
[0027]
Next, FIG. 8A is a cross-sectional view of FIG. 7 as viewed from above. When the blade is not inserted into the blade insertion hole 41a, the door 50 is recessed by the spring force of both ends 51a of the flat spring 51. After moving to the other end of the hole 41d, one end of the hole 50d is locked to the protruding piece 41f, and the open end inside the blade insertion hole 41a is closed by the door 50.
[0028]
FIG. 8B is a diagram when the blades P1 and P2 are inserted into the blade insertion hole 41a. When the blades P1 and P2 are not inserted into the blade insertion hole 41a (see FIG. 8A), both ends of the door 50 facing the blade insertion hole 41a of the door 50 are changed from one end to the other end. Inclined portions 50a and 50e inclined toward the back are formed to close the blade insertion hole 41a. When the blades P1 and P2 are inserted into the blade insertion holes 41a, the blades P1 and P2 come into contact with the inclined portions 50a and 50e, and the pressing force of the blades P1 and P2 applied to the inclined portions 50a and 50e is equal to the door portion. The door 50 is moved to one end against the force of the springs 51 at both ends 51 a of the flat spring 51, being converted into a force for moving the door 50 in a direction substantially perpendicular to the pressing force. Then, the other end of the door 50 and one end of the hole 50d are respectively engaged with the blades P1 and P2, and the inner open end of the blade insertion hole 41a is open, and the blade insertion hole 41a is opened. The blade P1 is inserted into the blade receiving spring 31a through the other end of the door 50, the blade P2 is passed through the hole 50d, and further through the blade insertion groove 43.
[0029]
When the blades P1 and P2 are pulled out, the door 50 moves again to the other end of the concave portion 41d by the spring force of the both ends 51a of the flat spring 51, and closes the open end inside the blade insertion hole 41a. When the blades P1 and P2 are not inserted into the blade insertion hole 41a in this manner, the door 50 closes the inner opening end of the blade insertion hole 41a, so that the door 50 can be moved from the blade insertion hole 41a into the outer shell 1. Prevents dust and dirt from entering.
[0030]
Here, when the blade P2 abuts only on the inclined portion 50e, as shown by a two-dot chain line 50 'in FIG. The projection 50b formed on the other end of the plug is locked to the stopper 41c which is cut off at one end inside the blade insertion hole 41a, so that the movement of the door 50 is suppressed and the plug P is prevented from being inserted. I do. Even when the blade P1 abuts only on the inclined portion 50a, as shown by a two-dot chain line 50 ″ in FIG. 8A, the door portion 50 rotates about the vertical direction as an axis, and one end of the surface of the door portion 50. The protrusion 50c formed on the side engages with the stopper 41d, which is cut off at one end side inside the blade insertion hole 41a.
[0031]
Further, as shown in FIG. 9, the flat spring 51 is housed at one end of the concave portion 41d on the back surface of the socket cover 41, and there is no other metal part between the blades P1 and P2. It has a structure in which dielectric breakdown hardly occurs.
[0032]
Next, the attachment of the bushing 60 to the outer shell 1 will be described with reference to FIGS. The bushing 60 covers the outer periphery of the power cord 3 drawn out of the outer shell 1 and prevents disconnection due to bending of the inner core wire 3a. One end of the bushing 60 has a cylindrical shape and the other end is fixed to the outer shell 1. For smoothing from the other end to the one end. One end of the outer shell 1 is formed with an opening for introducing the power cord 3, and the bushing 60 is covered by the opening. On both side surfaces of the other end of the bushing 60, a semicircular convex portion 63 (fixed portion) projects in both directions, and the convex portion 63 is locked to a peripheral edge inside the opening on one end side of the outer shell 1. It is fixed to the shell 1.
[0033]
As shown in FIGS. 11 and 12, a rectangular valve 61 extending in the other end direction is formed on the upper and lower portions on the other end side of the bushing 60. In addition, a concave portion 15 is provided at one end of a concave portion 14 formed by opening one end side on the surface of the cover 10, and three projections 13 are formed on the bottom surface of the concave portion 15. Then, the valve 61 is fitted into the concave portion 15, the projection 13 is inserted through three holes 61 a formed in the valve 61, and then the decorative plate 5 is fitted into the concave portions 14 and 15 of the cover 10. The same applies to the body 20 side.
[0034]
Here, as shown in FIG. 13 which is an enlarged cross section of the mounting portion of the bushing 60 when viewed from the side, the valve 61 is positioned between the cover 10 and the decorative plate 5 and between the body 20 and the decorative plate 5. The gap generated between the outer shell 1 and the bushing 60 (S portion) when the power cord 3 is bent in the vertical direction can be hidden by the valve 61, and three holes formed in the valve 61. The clearance generated is reduced by inserting and locking the projection 13 in the 61a.
[0035]
The decorative plate 5 is provided with a total of four locking pieces 5a, two on each side, and one locking piece 5b on the other end. Further, the concave portion 14 of the cover 10 has two locking holes 10a, two on each side, and one locking hole 10b at the other end. The decorative plate 5 can be attached to the cover 10 by locking the locking pieces 5a to the locking holes 10a in a state where the locking pieces 5b are locked to the locking holes 10b. The same applies to the attachment of the decorative board 5 to the body 20.
[0036]
As shown in FIG. 14, the decorative plate 5 attached as described above is positioned so that one end is surrounded by the bushing 60 and the other end and both sides are surrounded by the wall surface of the concave portion 14 of the cover 10. As shown in FIG. 7, a notch 62 for exposing a side end of the decorative plate 5 is provided at the other end of the bushing 60 facing one end of the decorative plate 5, and a driver D or the like is inserted into the notch 62 and rotated in the direction of the arrow. Thereby, it can be easily removed. Removal of the decorative board 5 from the body 20 is the same.
[0037]
Moreover, as shown in FIG. 16, a decorative plate 5 having a daruma-shaped hole 5 c at the other end may be used. In this case, as shown in FIG. 17, a groove 22 having both ends opened is formed in both ends of the body 2, and a bushing 60 is attached to one end of the body 2 in the same manner as described above. The groove portion 22 is provided with a total of six locking holes 20a at one end, approximately at the center, and at the other end on both sides thereof. As shown in FIG. The other end of the decorative plate 5 protrudes out of the body 20 by locking the provided locking pieces 5a in the locking holes 20a at substantially the center of the groove 22 and the other end.
The hole 5c can be used as a hook for simplicity by hooking it on a projection provided on a structure or the like.
[0038]
In the above embodiment, three table taps in which two blade insertion holes 41a are provided on one side surface of the outer shell 1 and one blade insertion hole 41a is provided on the other end surface have been described. 20 (a) to 20 (d), two plug blade insertion holes 41a are provided on the other side surface of the outer shell 1 using the inner space C vacant on the other side surface side of the outer shell 1. The power supply to all the blade receiving springs 31a is turned on / off as shown in FIG. 21, and a switch SW1 that can turn on / off all the outlets at once is provided. Alternatively, as shown in FIG. 22, a breaker reset switch SW2 may be provided on the upper surface of the outer shell 1 by housing a breaker for preventing tracking that shuts off power supply to the blade receiving spring 31a when a tracking phenomenon occurs. As shown in FIG. 23, an overcurrent detection breaker that shuts off power supply to the blade receiving spring 31a when an overcurrent is detected is housed, an overcurrent detection breaker reset switch SW3 is provided on the upper surface of the outer shell 1, and when the energizing current is The current value display lamps La1, which are turned on at 10A, and the current value display lamps La3, which are turned on at 15A, may be provided.
[0039]
【The invention's effect】
The invention according to claim 1 is an outer shell whose height direction is shorter than the width direction, a blade insertion hole provided on a surface in a height direction of the outer shell, into which a plug blade of a plug is inserted, and housed in the outer shell. A plurality of terminal plates having a blade receiving spring for receiving a blade inserted from each of the blade insertion holes and being supplied with power from an external power supply via an electric wire; and a blade inserted into the blade insertion hole. Insertion hole opening / closing means for moving a door portion located on one of the opening end sides of the blade insertion hole by the pressing force of the blade, wherein the door portion does not insert a blade into the blade insertion hole. Sometimes the blade insertion hole is at a position where the blade insertion hole is closed, and when the blade is inserted into the blade insertion hole, the blade moves to a position where the blade insertion hole is opened, so that even when a plug is connected, it can be installed in a narrow space, If the plug is not connected, There is an effect that dust and dirt from entering the part can be prevented.
[0040]
According to a second aspect of the present invention, in the first aspect, the insertion hole opening / closing means contacts the blade inserted in the blade insertion hole and opens the blade insertion hole by pressing the blade in contact with the blade. The door portion having a contact portion that converts to a force for moving to a position, and is disposed at a position that is not sandwiched by a plurality of blades provided on a plug, and is pressed against the door portion to press the blade. A metal spring for urging a force to move the door to a position where the blade insertion hole is closed when not inserted into the blade insertion hole. Therefore, there is an effect that dielectric breakdown due to the tracking phenomenon hardly occurs.
[0041]
According to a third aspect of the present invention, in the first or second aspect, a fixing portion for covering the outer periphery of the electric wire drawn from the outer shell to prevent disconnection due to bending of the inner core wire and fixing the fixing portion to the inside of the outer shell. The bushing provided in the bushing has an effect that the length can be reduced as compared with a table tap having a fixing portion at an end of the bushing.
[0042]
According to a fourth aspect of the present invention, in the third aspect, the bushing portion includes a planar valve portion which is attached to the outer surface of the outer shell by being locked, so that the bushing portion is bent between the outer shell and the bushing. There is an effect that it is possible to reduce the gap generated by locking the valve to the outer surface of the outer shell.
[0043]
According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the outer shell includes a decorative plate fitted into a concave portion formed on a surface not provided with the blade insertion hole, and the bushing portion has an end portion. Is provided so as to face one end of the concave portion, and a cutout for exposing a part of a side end of the decorative board is provided. Therefore, there is an effect that the decorative board can be easily removed.
[0044]
According to a sixth aspect of the present invention, in any one of the first to fourth aspects, the outer shell includes a decorative plate that slides in a groove formed on a surface not provided with the blade insertion hole, and the decorative plate is provided on a structure. Since a hole is provided to be hooked on the provided protrusion, if the decorative plate is shifted from the outer shell and the hole is hooked on the protrusion, there is an effect that it can be used as a simple hook.
[0045]
According to a seventh aspect of the present invention, in any one of the first to sixth aspects, the outer shell is formed in a box, and a blade insertion hole is provided on three of the four surfaces in the height direction, and the remaining one is provided on the other surface. Since a bushing portion is provided to cover the outer periphery of the electric wire drawn from the outer shell and prevent disconnection due to bending of the inner core wire, it is possible to effectively utilize the space inside the outer shell to form a 5-port tap. This has the effect.
[0046]
According to an eighth aspect of the present invention, in any one of the first to sixth aspects, the outer shell is formed in a box, and a blade insertion hole is provided on two of four surfaces in a height direction, and the outer shell is provided on one surface. A bushing is provided to cover the outer periphery of the electric wire drawn out of the housing to prevent disconnection due to bending of the inner core wire, and a switch for turning on / off power supply to the blade receiving spring is housed on the remaining one surface side in the outer shell. Therefore, there is an effect that a switch for turning on / off the power supply to the outlet can be housed by effectively utilizing the space inside the outer shell.
[0047]
According to a ninth aspect of the present invention, in any one of the first to sixth aspects, the outer shell is formed in a box, and two of the four surfaces in the height direction have a blade insertion hole, and the outer shell is formed on one surface. A bushing is provided to cover the outer periphery of the wire drawn out from the wire and prevent disconnection due to bending of the inner core wire, and cut off power supply to the blade receiving spring when a tracking phenomenon occurs on the remaining one surface side in the outer shell. Since the means is housed, there is an effect that the means for shutting off the power supply to the outlet when the tracking phenomenon occurs can be housed by effectively utilizing the space inside the outer shell.
[0048]
According to a tenth aspect of the present invention, in any one of the first to sixth aspects, the outer shell is formed in a box, and a blade insertion hole is provided on two of four surfaces in a height direction, and the outer shell is provided on one surface. A bushing for covering the outer periphery of the electric wire drawn out of the housing to prevent disconnection due to bending of the inner core wire, and means for interrupting power supply to the blade receiving spring when overcurrent is detected on the remaining one surface side in the outer shell Is stored, so that it is possible to effectively utilize the space inside the outer shell and store a means for cutting off the power supply to the outlet when overcurrent is detected.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a power strip according to an embodiment of the present invention.
FIG. 2 is a perspective view of the same as seen from above.
FIG. 3 is a perspective view of the same as seen from the lower surface side.
FIG. 4A is a top view with the cover 10 removed therefrom.
(B) It is one side view same as the above.
(C) It is a bottom view of the same.
(D) It is another side view same as the above.
(E) It is an end elevation same as the above.
FIG. 5 is a perspective view showing a state in which the plug is inserted.
FIG. 6 is an exploded perspective view showing attachment of a door and a flat spring to a receiving cover.
FIG. 7 is a perspective view showing attachment of a door portion and a flat spring to a receiving cover.
8A is a cross-sectional view of FIG. 7 as viewed from above.
(B) It is sectional drawing at the time of inserting a plug in (a).
FIG. 9 is a perspective view showing a state in which a door and a flat spring are attached to a receiving cover and a plug is inserted.
FIG. 10 is a side sectional view of a table tap according to the embodiment of the present invention.
FIG. 11 is a partially exploded perspective view of the same as seen from above.
FIG. 12 is a partially exploded perspective view of the same as viewed from above.
FIG. 13 is a partially enlarged cross-sectional view of a bushing attachment portion.
FIG. 14 is a perspective view of the table tap according to the embodiment of the present invention as viewed from the upper surface side.
15 is a partially enlarged sectional view of FIG.
FIG. 16 is a perspective view of another power strip according to the embodiment of the present invention as viewed from the upper surface side.
FIG. 17 is a partially exploded perspective view of the same as seen from above.
FIG. 18 is a perspective view in which the position of the decorative frame is changed.
FIG. 19 is a perspective view of the power strip according to the embodiment of the present invention, with the cover removed and viewed from above.
FIG. 20 (a) is a top view of a five-port table tap according to the embodiment of the present invention.
(B) It is one side view same as the above.
(C) It is another side view same as the above.
(D) It is an end elevation same as the above.
FIG. 21 is a perspective view of a power strip with a switch according to the embodiment of the present invention.
FIG. 22 is a perspective view of a table tap with a tracking preventing breaker according to the embodiment of the present invention.
FIG. 23 is a perspective view of a table tap with an overcurrent detection breaker according to the embodiment of the present invention.
FIG. 24 is a perspective view of a conventional table tap.
[Explanation of symbols]
1 outer shell 10 cover 20 body 30a, 30b terminal plate 31 blade receiving spring 40 middle body 41 receiving port cover 41a blade insertion hole 43 blade insertion groove 50 door portion 51 flat spring

Claims (10)

幅方向よりも高さ方向が短い外郭と、前記外郭の高さ方向の面に設けられてプラグの栓刃が挿入される栓刃挿入孔と、前記外郭に収納されて前記各栓刃挿入孔から内部に挿入された栓刃を受ける刃受けばねを有すると共に外部電源から電線を介して給電される複数の端子板と、前記栓刃挿入孔に挿入される栓刃の押圧力によって前記栓刃挿入孔のいずれかの開口端側に位置する扉部を移動させる挿入孔開閉手段とを備え、前記扉部は、栓刃を前記栓刃挿入孔に挿入していないときには前記栓刃挿入孔を閉じる位置にあり、栓刃を前記栓刃挿入孔に挿入したときには前記栓刃挿入孔を開く位置に移動することを特徴とするテーブルタップ。An outer shell having a height direction shorter than the width direction, a blade insertion hole provided on a surface in a height direction of the outer shell to insert a plug blade of a plug, and each of the blade insertion holes housed in the outer shell; A plurality of terminal plates, which are provided with a blade receiving spring for receiving a blade inserted therein from the outside and supplied with power from an external power supply via an electric wire, and the blade being pressed by a blade inserted into the blade insertion hole. An insertion hole opening / closing means for moving a door portion located on one of the opening end sides of the insertion hole, wherein the door portion connects the blade insertion hole when the blade is not inserted into the blade insertion hole. A table tap which is at a closed position and moves to a position where the blade insertion hole is opened when the blade is inserted into the blade insertion hole. 前記挿入孔開閉手段は、前記栓刃挿入孔に挿入された栓刃が当接し、該当接した栓刃の押圧力を前記栓刃挿入孔を開く位置に移動するための力に変換する当接部を有する前記扉部と、プラグに設けた複数の栓刃に挟まれない位置に配置されるとともに前記扉部に圧接して、栓刃を前記栓刃挿入孔に挿入していないときに前記扉部を前記栓刃挿入孔を閉じる位置に移動させる力を付勢する金属ばねとから構成されることを特徴とする請求項1記載のテーブルタップ。The insertion hole opening / closing means is configured to contact the blade inserted in the blade insertion hole and convert the pressing force of the blade in contact with the blade into a force for moving the blade insertion hole to the open position. The door portion having a portion, is disposed at a position not sandwiched by a plurality of blades provided in the plug and pressed against the door portion, when the blade is not inserted into the blade insertion hole, The table tap according to claim 1, further comprising: a metal spring for urging a door to move the door to a position where the blade insertion hole is closed. 前記外郭から引き出された電線の外周を覆って内部の芯線の屈曲による断線を防止するとともに、前記外郭内に固定するための固定部を側面に具備するブッシング部を備えることを特徴とする請求項1または2記載のテーブルタップ。A bushing portion, which covers an outer periphery of the electric wire drawn from the outer shell to prevent disconnection due to bending of an inner core wire and has a fixing portion for fixing the inside of the outer shell on a side surface, is provided. Table tap described in 1 or 2. 前記ブッシング部は前記外郭の外面に係止して取り付けられる面状の弁部を具備することを特徴とする請求項3記載のテーブルタップ。The power tap according to claim 3, wherein the bushing portion includes a planar valve portion that is attached to and attached to an outer surface of the outer shell. 前記外郭は前記栓刃挿入孔を備えていない面に形成した凹部に嵌め込まれた化粧板を具備し、前記ブッシング部はその端部が前記凹部の一端に臨むように取り付けられて前記化粧板の側端の一部を露出させる切り欠きを設けたことを特徴とする請求項1乃至4いずれか記載のテーブルタップ。The outer shell includes a decorative plate fitted in a concave portion formed on a surface not provided with the blade insertion hole, and the bushing portion is attached so that an end thereof faces one end of the concave portion, and the bushing portion is attached to the decorative plate. The table tap according to any one of claims 1 to 4, wherein a cutout for exposing a part of the side end is provided. 前記外郭は前記栓刃挿入孔を備えていない面に形成した溝部を摺動する化粧板を具備し、前記化粧板は構造物に設けた突起に掛止する孔を設けたことを特徴とする請求項1乃至4いずれか記載のテーブルタップ。The outer shell includes a decorative plate that slides in a groove formed on a surface not provided with the blade insertion hole, and the decorative plate includes a hole that is engaged with a protrusion provided on a structure. The table tap according to claim 1. 前記外郭は函体に形成されて、高さ方向の4つの面のうち3面に栓刃挿入孔を備え、残りの1面に前記外郭から引き出された電線の外周を覆って内部の芯線の屈曲による断線を防止するブッシング部を設けたことを特徴とする請求項1乃至6いずれか記載のテーブルタップ。The outer shell is formed in a box, and is provided with a blade insertion hole on three of the four surfaces in the height direction, and covers the outer periphery of the electric wire drawn from the outer shell on the remaining one surface to form an inner core wire. The table tap according to any one of claims 1 to 6, further comprising a bushing portion for preventing disconnection due to bending. 前記外郭は函体に形成されて、高さ方向の4つの面のうち2面に栓刃挿入孔を備え、1面に前記外郭から引き出された電線の外周を覆って内部の芯線の屈曲による断線を防止するブッシング部を設け、前記外郭内の残りの1面側に前記刃受けばねへの給電をオン・オフするスイッチを収納したことを特徴とする請求項1乃至6いずれか記載のテーブルタップ。The outer shell is formed in a box, and two of the four surfaces in the height direction have a blade insertion hole, and one surface covers the outer periphery of the electric wire drawn from the outer shell and is formed by bending the inner core wire. The table according to any one of claims 1 to 6, further comprising a bushing for preventing disconnection, and a switch for turning on / off power supply to the blade receiving spring housed on the remaining one surface of the outer shell. Tap. 前記外郭は函体に形成されて、高さ方向の4つの面のうち2面に栓刃挿入孔を備え、1面に前記外郭から引き出された電線の外周を覆って内部の芯線の屈曲による断線を防止するブッシング部を設け、前記外郭内の残りの1面側にトラッキング現象の発生時に前記刃受けばねへの給電を遮断する手段を収納したことを特徴とする請求項1乃至6いずれか記載のテーブルタップ。The outer shell is formed in a box, and two of the four surfaces in the height direction have a blade insertion hole, and one surface covers the outer periphery of the electric wire drawn from the outer shell and is formed by bending the inner core wire. 7. A bushing portion for preventing disconnection, and means for shutting off power supply to the blade receiving spring when a tracking phenomenon occurs is housed on the remaining one surface in the outer shell. The described table tap. 前記外郭は函体に形成されて、高さ方向の4つの面のうち2面に栓刃挿入孔を備え、1面に前記外郭から引き出された電線の外周を覆って内部の芯線の屈曲による断線を防止するブッシング部を設け、前記外郭内の残りの1面側に過電流検知時に前記刃受けばねへの給電を遮断する手段を収納したことを特徴とする請求項1乃至6いずれか記載のテーブルタップ。The outer shell is formed in a box, and two of the four surfaces in the height direction have a blade insertion hole, and one surface covers the outer periphery of the electric wire drawn from the outer shell and is formed by bending the inner core wire. 7. A bushing portion for preventing disconnection, and means for shutting off power supply to the blade receiving spring when an overcurrent is detected is housed on the other surface of the outer shell. Table tap.
JP2003010284A 2003-01-17 2003-01-17 Tabletop Expired - Fee Related JP4126489B2 (en)

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US8259968B2 (en) 2008-04-28 2012-09-04 Tsinghua University Thermoacoustic device
US8249279B2 (en) 2008-04-28 2012-08-21 Beijing Funate Innovation Technology Co., Ltd. Thermoacoustic device
US8452031B2 (en) 2008-04-28 2013-05-28 Tsinghua University Ultrasonic thermoacoustic device
US8270639B2 (en) 2008-04-28 2012-09-18 Tsinghua University Thermoacoustic device
US8259967B2 (en) 2008-04-28 2012-09-04 Tsinghua University Thermoacoustic device
CN101656907B (en) 2008-08-22 2013-03-20 清华大学 Sound box
CN101715155B (en) 2008-10-08 2013-07-03 清华大学 Earphone
CN101715160B (en) 2008-10-08 2013-02-13 清华大学 Flexible sound producing device and sound producing flag
US8300855B2 (en) 2008-12-30 2012-10-30 Beijing Funate Innovation Technology Co., Ltd. Thermoacoustic module, thermoacoustic device, and method for making the same
US8325947B2 (en) 2008-12-30 2012-12-04 Bejing FUNATE Innovation Technology Co., Ltd. Thermoacoustic device
CN101943850B (en) 2009-07-03 2013-04-24 清华大学 Sound-producing screen and projection system using same
CN101990152B (en) 2009-08-07 2013-08-28 清华大学 Thermal sounding device and manufacturing method thereof
CN102006542B (en) 2009-08-28 2014-03-26 清华大学 Sound generating device
CN102023297B (en) 2009-09-11 2015-01-21 清华大学 Sonar system
CN102034467B (en) 2009-09-25 2013-01-30 北京富纳特创新科技有限公司 Sound production device
CN102056064B (en) 2009-11-06 2013-11-06 清华大学 Loudspeaker
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