JP2004147376A - Distribution board - Google Patents

Distribution board Download PDF

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Publication number
JP2004147376A
JP2004147376A JP2002306742A JP2002306742A JP2004147376A JP 2004147376 A JP2004147376 A JP 2004147376A JP 2002306742 A JP2002306742 A JP 2002306742A JP 2002306742 A JP2002306742 A JP 2002306742A JP 2004147376 A JP2004147376 A JP 2004147376A
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Japan
Prior art keywords
main body
locked
plug
breaker
base
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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.)
Pending
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JP2002306742A
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Japanese (ja)
Inventor
Tetsuya Hoshino
星野 哲也
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Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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Priority to JP2002306742A priority Critical patent/JP2004147376A/en
Publication of JP2004147376A publication Critical patent/JP2004147376A/en
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  • Distribution Board (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a distribution panel capable of reducing the fears of breakage of a latching member at the time of removing plug-in breakers. <P>SOLUTION: This distribution panel comprises a base 1 having a hooked portion 7, a plurality of dielectric bars 2 to 4, the latching member 6 of which the base end is attached at the dielectric bar 4 on the uppermost stage among the dielectric bars 2 to 4 and of which the top end has a latching portion 22 protruding in a widthwise direction of the dielectric bars 2 to 4, receiver blades 16, 17 on one side, and a portion 18 to be hooked on the other side. A plurality of plug-in breakers 5 having a portion 23 to be latched which is detachably latched at the latching portion 22 with the dielectric bars 2 to 4 inserted in the receiver blades 16, 17 are provided at a top surface on one side. The latching member 6 is constituted of the latching portion 22, a body 25 having a through hole 27 on the base end side, an operation body 26 having a rotation operating part 26a inserted in the through hole 27, and a body driving portion 26b forming a pressing piece 37 which removes the latching portion 22 from the portion 23 to be latched. <P>COPYRIGHT: (C)2004,JPO

Description

【0001】
【発明の属する技術分野】
本発明は、プラグインブレーカの先端に引掛けてプラグインブレーカが導電バーから外れる方向へ移動するのを防止する係止部材を有する分電盤に関する。
【0002】
【従来の技術】
この種の分電盤としては、例えば図9および図10に示すように、ベース100に引掛部101を形成するとともに、3つの導電バー102〜104のうちの最上段の導電バー104に係止部105を有する係止部材106を取着し、一方側に受刃107、108を設けるとともに他方側に被引掛部109を設けたプラグインブレーカ110を導電バー102〜104の幅方向から取着し、プラグインブレーカ110の一方側上面に形成された被係止部111を係止部105に係止させるとともにベース100の引掛部101を被引掛部109に引掛けてプラグインブレーカ110が導電バー102〜104から離れる方向の移動を規制している。
【0003】
ここで係止部材106は、合成樹脂成形品からなり、一端が支点となる連結片により一体に支持された弾性突出片112が形成されており、この弾性突出片112の先端部が正規位置に配置されるプラグインブレーカ110の一方側上面に臨むように突出しており、その先端部両側にはプラグインブレーカ110の一方側上面に並設した2つの突起状の被係止部111に係止する係止部105を側方に突出形成している。また連結片を間にして弾性突出片12と反対側に操作片114を延出している。そして、プラグインブレーカ110をベース100から外すには、係止部材106の弾性突出片112の基端側に連設された操作片114をドライバ(図示せず)で下方に押圧し、弾性突出片112の基端が連結された連結片を回動支点として回動させてその先端部を上方へ移動させ、先端部の係止部105をプラグインブレーカ110の被係止部111から離脱させることにより行う(特許文献1参照)。
【0004】
【特許文献1】
特開2001−136611号公報(第4頁第6列第3行目〜第23行目、第5頁第8列第4行目〜第18行目、図1、図7、図12)
【0005】
【発明が解決しようとする課題】
上述した分電盤にあっては、プラグインブレーカ110をベース100から外す場合、係止部材106の弾性突出片112の基端に連設された操作片114をドライバで下方に押圧し、弾性突出片112の基端が連結された連結片を回動支点として回動させてその先端部を上方へ移動させて行っているので、操作片114へのドライバ押圧量と実際に変位する係止部10のある先端部の量とが一致せず、ドライバで操作片114を更に押圧すると回動支点である連結片が捩じれて破損してしまうという問題があった。
【0006】
本発明は、かかる事由に鑑みて成されたものであり、その目的とするところは、プラグインブレーカを取り外す際、係止部材が破損する恐れを少なくできる分電盤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記載の分電盤は、引掛部を有したベースと、このベースに対して高さ方向に並設した複数の導電バーと、これらの導電バーのうちの最上段の導電バーに基端が取着されて先端に前記導電バーの幅方向へ突出する係止部を設けた係止部材と、一方側に前記導電バーを差込接続する受刃を設けるとともに他方側に前記引掛部に引掛けられる被引掛部を設け、更に一方側上面には前記受刃に前記導電バーを差し込んだ状態で前記係止部に係脱可能に係止されて前記受刃が前記導電バーから外れる方向の移動を防止する被係止部が設けられて前記導電バーの延出方向に沿って横並びに前記ベースに並設される複数のプラグインブレーカと、を備えた分電盤において、
前記係止部材は、先端に前記係止部を有するとともに基端側に貫通孔を有して前記導電バーに取着される本体と、この本体とは別体であって前記本体の前記貫通孔に挿通された回動操作部を有するとともに前記回動操作部に連設されて前記本体と前記導電バーとの間に介在し、前記回動操作部の回動操作によって前記本体と前記導電バ−との間で回動する本体駆動部を有した操作体とで構成され、前記本体駆動部には、前記本体の基端および先端間の裏面に臨んだ状態で前記係止部を前記被係止部から外す方向に付勢して前記係止部を前記被係止部から外す押圧片が形成されたことを特徴とするものである。
【0008】
請求項1記載の分電盤によれば、本体とは別体の操作体を回動操作することによって操作体に形成された押圧片が本体の基端および先端間の裏面に臨んで係止部を被係止部から外す方向に押圧付勢し、係止部を被係止部から外すことができるので、本体の基端から先端間への押圧量でそのまま係止部を被係止部から外すことができる。従って、従来に比べて係止部材が破損し難いものとなる。
【0009】
請求項2記載の分電盤は、請求項1において、前記係止部に前記被係止部が係止された状態で、前記プラグインブレーカの−方側端面に当接する押出し片を前記本体に設けたものである。
【0010】
請求項2記載の分電盤によれば、請求項1と同様な効果のほか、操作体が回転すると、本体の押出し片がプラグインブレーカの一方側端面に当接してプラグインブレーカを取り外す方向の力を蓄積し、そのまま操作体を回転させて係止部から被係止部が外れると蓄積された力でプラグインブレーカを簡単に取り外すことができ、そのためプラグインブレーカの取り外し作業が容易となる。
【0011】
請求項3記載の分電盤は、請求項1において、前記係止部に前記被係止部が係止された状態で、前記プラグインブレーカの一方側端面に当接する押出し片を前記本体駆動部に形成したものである。
【0012】
請求項3記載の分電盤によれば、請求項1と同様な効果のほか、操作体が回転すると、本体駆動部の押出し片がプラグインブレーカの一方側端面に当接してプラグインブレーカを取り外す方向の力を蓄積し、そのまま操作体を回転させて係止部から被係止部が外れると蓄積された力でプラグインブレーカを簡単に取り外すことができ、そのためプラグインブレーカの取り外し作業が容易となる。
【0013】
【発明の実施の形態】
この発明の第1の実施の形態を図1から図6に基づいて説明する。この分電盤は、ベース1と、複数の導電バー2〜4と、プラグインブレーカ5と、係止部材6を有する。
【0014】
ベース1は引掛部7を有するものである。ベース1上には中央部8を間にして向かい合わせにプラグインブレーカ5を載置するとともにその複数を横方向に並設している。ベース1は樹脂製の固定ベース1aと金属製の取付ベース1bを有し、取付ベース1b側が分電盤の箱形のボディの内底部に取着される。引掛部7はベース1の両側縁で中央部8と反対向きに突出する逆L字形に形成している。
【0015】
複数の導電バー2〜4は、ベース1に対して高さ方向に最下段、中段および最上段の3段に並設している。実施の形態においては、両端部が支持部材(図示せず)に支持されて、ベース1の中央部8上に導電バー2〜4が段設されている。
【0016】
複数のプラグインブレーカ5は、上記したように、導電バー2〜4の延出方向に沿って横並びにベース1に並設される。各プラグインブレーカ5の一方側(前側)に導電バー2〜4を差込接続する受刃16、17を設けるとともに他方側(後側)に引掛部7に引掛けられる被引掛部18を設けている。導電バー2〜4を差し込ませるためプラグインブレーカ5の一方側に導電バー2〜4に対向する複数の溝20を形成し、受刃16は最上段の溝20内に配置し、受刃17は図1の右側のプラグインブレーカ5は最下段の溝20内に配置している。受刃17は中段の溝20に移動可能に構成されており、図1の左側のプラグインブレーカ5は中段の溝20に受刃17が配設され、導電バー3に接触している。また実施の形態の被引掛部18は引掛部7の形状に略合わせて、プラグインブレーカ5の側方と下方に開口する略逆L字形溝により凹状に形成している。したがって、プラグインブレーカ5は、ベース1に載置しながら被引掛部18の凹みに引掛部7を嵌めて前方に移動することにより係止し、導電バー2〜4に受刃16、17を差し込んだとき完全な係止状態となり、ベース1から垂直に離れる方向の移動が規制され、反対に後方(他方側)に移動することにより被引掛部18から外れることができる。更に一方側上面には受刃16、17に導電バー2〜4を差し込んだ状態で後述の係止部22に係脱可能に係止されて受刃16、17が導電バー2〜4から外れる方向の移動を防止する被係止部23が設けられている。被係止部23は、プラグインブレーカ5毎に一対並設され、係止部22に当接する当接開始となる最先端側から徐々に上方へ突出する傾斜状に形成されている。このため、被係止部23に係止部22が係止するとき斜面23aに沿って係止部22を乗り越えることができるので、係止部22に被係止部23を係止し易くなり、プラグインブレーカ5を取り付ける作業が容易となる。
【0017】
係止部材6は、本体25と、操作体26とで構成されている。本体25は先端に係止部22を有するとともに基端側に導電バー側に向く貫通孔27を有して最上段の導電バー4に取着される。実施の形態では係止部材6は合成樹脂製であり、例えば図5に示すように本体25は導電バー4の延出方向に延びる基部25aと、設置されるプラグインブレーカ5の各々に基部25aの両側から延出する略T字形の本体部25bからなっており、係止部22はその両肩部に形成されている。実施の形態では相対向する一対のプラグインブレーカ5毎に基部25a上に貫通孔27を形成し、貫通孔27ごと一対の本体部25bが基部25aの両側に形成されている。導電バー4に取付孔28を形成し、取付孔28に圧入する支柱29を基部25aより垂下している。支柱29の先端には取付孔28に貫通する細径部29aを有し、細径部29aの先端に頭部29bを形成するとともに中央に割溝29bを形成し、取付孔28に圧入することにより割溝29cが狭まって頭部29bを取付孔28に貫通し、復元して抜止めとなる。これで本体25は導電バー4上の支柱29の高さに固定されている。
【0018】
操作体26は、本体25とは別体であって本体25の貫通孔27に挿通された回動操作部26aを有するとともに回動操作部26aに連設されて本体25と導電バー4との間に介在し、回動操作部26aの回動操作によって本体25と導電バ−4との間で回動する本体駆動部26bを有する。操作体26の本体駆動部26bは円柱状であり、下面が導電バー4に載置され、上面が本体25の下面に当接している。回動操作部26aは本体駆動部26bよりも細径の円柱状であり、本体駆動部26bの上面に一体的に連結されており、回動操作部26aの上面はドライバ等の操作具の差し込み溝26cを形成している。また本体駆動部26bには、本体25の基端および先端間の裏面に臨んだ状態で係止部22を被係止部23から外す方向に付勢して係止部22を被係止部23から外す押圧片30が形成されている。押圧片30は、本体駆動部26bの上面の回動操作部26aの周辺に本体25の基端部を押し上げるための突部により形成している。本体25の各係止部22は各プラグインブレーカ5に対して個別に係止解除できるように押圧片30の位置が設定されている。
【0019】
したがって、本体25に被係止部23を係止するときは本体25の先端がプラグインブレーカ5の上面に載るようにプラグインブレーカ5をスライドし、係止部22に被係止部23の傾斜面23aをスライドして係止部22を被係止部23に乗り越えさせ例えば図1および図2の状態に係止する。このとき押圧片30は本体部25bから離れている。つぎに、例えば図1の一方(右側)の係止部22を被係止部23から外すときは、図4に示すように差し込み溝26cをドライバー等により回動し押圧片30が本体部25bの下面に入るようにする。これにより押圧片30の突出量分本体部25bの基端と先端との間の部分が押し上げられて係止部22が被係止部23から外れる方向に移動して外れる。
【0020】
このように、本体25とは別体の操作体26を回動操作することによって、操作体26に形成された押圧片30が本体25の基端および先端間の裏面に臨んで係止部22を被係止部23から外す方向に押圧付勢し、係止部22を被係止部23から外すことができるので、本体25の基端から先端間への押圧量でそのまま係止部22を被係止部23から外すことができる。従って、係止部材6が破損し難いものとなる。この点、特開2001−136611号は係止部材全体が弾性体で形成されており、軸支点の一方側の基端部を押圧すれば軸支点の他端側の係止部が被係止部から外れる方向に移動するので、基端部の押圧量と係止部が被係止部から離れた量とが必ずしも一致せず、係止部を被係止部から外すために基端部を更に押圧すれば軸支点部分から破損してしまう恐れがあった。
【0021】
また、本体25には、係止部22に被係止部23が係止された状態で、プラグインブレーカ5の−方側端面5aに当接する押出し片37を設けている。実施の形態の押出し片37は本体部25bの下面に突出した断面三角形状の突起になっている。例えば図3の左側の本体25のように係止部22が被係止部23に係止した状態で押出し片37はプラグインブレーカ5の一方側端面5aに当接する。図3の右側の本体25のように回動操作部26aで本体25を押し上げるにつれ押出し片37が一方側端面5aを押すが、係止部22が被係止部23から外れるまでは押圧したままで本体25が弾性変形することにより押圧力を蓄え、係止部22が被係止部23から外れると押出し片37がプラグインブレーカ5を押し出す作用によりプラグインブレーカ5が導電バー2〜4から外れることができ、同時に引掛部7からも被引掛部18が外れる方向に移動し、プラグインブレーカ5は単にベース1上に載置されただけの状態となる。
【0022】
このように、操作体26が回転すると、本体25の押出し片37がプラグインブレーカ5の一方側端面5aに当接してプラグインブレーカ5を取り外す方向の力を蓄積し、そのまま操作体26を回転させて係止部22から被係止部23が外れると蓄積された力でプラグインブレーカ5を簡単に取り外すことができ、そのためプラグインブレーカ5の取り外し作業が容易となる。
【0023】
図6は分電盤の蓋体を外した状態であり、ベース1が分電盤の箱形のボディ43の内底部に取着され、ベース1上にプラグインブレーカ5が横2列に配置され、その列の端部で導電バー2〜4の端部が主幹ブレーカ44に接続されている。複数の本体25が端部に設けた連結部25cにより相互に連結されている。45は通線用のノックアウト部である。
【0024】
この発明の第2の実施の形態を図7および図8により説明する。第1の実施の形態において、係止部22に被係止部23が係止された状態で、プラグインブレーカ5の一方側端面5aに当接する押出し片37を本体駆動部26bに形成している。実施の形態の押出し片37は押圧片30の近傍の周面より突出する断面略三角形突条であり、軸方向の全長にわたって延びている。したがって、回動操作部26aを回動すると押圧片30で本体25を押し上げるのとほぼ同時に押出し片37がプラグインブレーカ5の一方側端面5aである前面に接触した状態からその前面を後方に押圧し、係止部22が被係止部23から外れると同時にプラグインブレーカ5を後方に押動し、取り外し容易となる。なお、押出し片37と押圧片30は一定の関係で配置し、第1の実施の形態と同様に各プラグインブレーカ5を個別に係止解除できるように位置を設定するのが好ましい。その他は、第1の実施の形態と同様である。
【0025】
【発明の効果】
請求項1記載の分電盤によれば、本体とは別体の操作体を回動操作することによって操作体に形成された押圧片が本体の基端および先端間の裏面に臨んで係止部を被係止部から外す方向に押圧付勢し、係止部を被係止部から外すことができるので、本体の基端から先端間への押圧量でそのまま係止部を被係止部から外すことができる。従って、従来に比べて係止部材が破損し難いものとなる。
【0026】
請求項2記載の分電盤によれば、請求項1と同様な効果のほか、操作体が回転すると、本体の押出し片がプラグインブレーカの一方側端面に当接してプラグインブレーカを取り外す方向の力を蓄積し、そのまま操作体を回転させて係止部から被係止部が外れると蓄積された力でプラグインブレーカを簡単に取り外すことができ、そのためプラグインブレーカの取り外し作業が容易となる。
【0027】
請求項3記載の分電盤によれば、請求項1と同様な効果のほか、操作体が回転すると、本体駆動部の押出し片がプラグインブレーカの一方側端面に当接してプラグインブレーカを取り外す方向の力を蓄積し、そのまま操作体を回転させて係止部から被係止部が外れると蓄積された力でプラグインブレーカを簡単に取り外すことができ、そのためプラグインブレーカの取り外し作業が容易となる。
【図面の簡単な説明】
【図1】この発明の第1の実施の形態のプラグインブレーカの設置状態の部分断面図である。
【図2】その部分斜視図である。
【図3】一方の係止部が被係止部から外れた状態の部分図である。
【図4】その部分斜視図である。
【図5】導電バー上の係止部材の分解斜視図である。
【図6】分電盤の蓋体を外した状態の平面図である。
【図7】第2の実施の形態の操作体の斜視図である。
【図8】一方の係止部が外れた状態のプラグインブレーカの部分断面図である。
【図9】従来例のプラグインブレーカの取付状態の部分断面図である。
【図10】従来例の係止部材とプラグインブレーカの一部を示す斜視図である。
【符号の説明】
1  ベース
2  導電バー
3  導電バー
4  導電バー
5  プラグインブレーカ
5a  一方側端面
6  係止部材
7  引掛部
10  係合部
11  係合部
16  受刃
17  受刃
18  被引掛部
22  係止部
23  被係止部
23a  斜面
25  本体
26  操作体
26a  回動操作部
26b  本体駆動部
30  押圧片
37  押出し片
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a power distribution board having a locking member that is hooked on a tip of a plug-in breaker to prevent the plug-in breaker from moving in a direction away from a conductive bar.
[0002]
[Prior art]
As shown in FIG. 9 and FIG. 10, for example, as this type of distribution board, a hook portion 101 is formed on a base 100, and is engaged with the uppermost conductive bar 104 of the three conductive bars 102 to 104. A plug-in breaker 110 provided with receiving members 107 and 108 on one side and a hooked part 109 on the other side is mounted in the width direction of the conductive bars 102 to 104. Then, the locked portion 111 formed on the upper surface on one side of the plug-in breaker 110 is locked to the locking portion 105, and the hook 101 of the base 100 is hooked to the hook 109, so that the plug-in breaker 110 becomes conductive. The movement in the direction away from the bars 102 to 104 is restricted.
[0003]
Here, the locking member 106 is made of a synthetic resin molded product, and is formed with an elastic protruding piece 112 integrally supported by a connecting piece whose one end serves as a fulcrum. It protrudes so as to face the upper surface on one side of the plug-in breaker 110 to be arranged, and is locked on two protruding locked portions 111 juxtaposed on the upper surface on one side of the plug-in breaker 110 on both sides of the tip. The locking portion 105 is formed to protrude laterally. An operation piece 114 extends on the opposite side of the elastic protruding piece 12 with the connecting piece therebetween. To remove the plug-in breaker 110 from the base 100, the operating piece 114 connected to the base end of the elastic projecting piece 112 of the locking member 106 is pressed downward by a driver (not shown), and The connecting piece, to which the base end of the piece 112 is connected, is rotated about a turning fulcrum to move the distal end thereof upward, and the locking portion 105 at the distal end is disengaged from the locked portion 111 of the plug-in breaker 110. (See Patent Document 1).
[0004]
[Patent Document 1]
JP-A-2001-136611 (page 4, column 6, line 3 to line 23, page 5, column 8, line 4 to line 18, FIGS. 1, 7, and 12)
[0005]
[Problems to be solved by the invention]
In the above-mentioned distribution board, when the plug-in breaker 110 is detached from the base 100, the operation piece 114 connected to the base end of the elastic projection piece 112 of the locking member 106 is pressed downward by a driver, and Since the connecting piece, to which the base end of the protruding piece 112 is connected, is rotated and the distal end thereof is moved upward, the amount of driver pressing on the operation piece 114 and the actual displacement are locked. There is a problem that the amount of the tip portion of the portion 10 does not match, and when the operating piece 114 is further pressed by the driver, the connecting piece, which is the rotation fulcrum, is twisted and damaged.
[0006]
The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a distribution board which can reduce the risk of breakage of a locking member when removing a plug-in breaker.
[0007]
[Means for Solving the Problems]
The distribution board according to claim 1 is based on a base having a hook portion, a plurality of conductive bars juxtaposed in a height direction with respect to the base, and a topmost conductive bar among the conductive bars. A locking member having an end attached and having a locking portion projecting in the width direction of the conductive bar at the tip, a receiving blade for inserting and connecting the conductive bar on one side, and the hooking portion on the other side The receiving bar is detachably locked to the locking portion while the conductive bar is inserted into the receiving blade on the upper surface on one side, and the receiving blade comes off the conductive bar. A plurality of plug-in breakers provided side by side along the extension direction of the conductive bar and provided with a locked portion for preventing movement in the direction of the conductive bar,
The locking member has the locking portion at the distal end and has a through hole at the base end side and is attached to the conductive bar. The main body is separate from the main body, and the main body is separate from the main body. A rotating operation portion inserted into the hole, and connected to the rotating operation portion, interposed between the main body and the conductive bar, and the main body and the conductive member are rotated by the rotating operation portion; An operating body having a main body driving portion that rotates between a bar and the main body driving portion. The main body driving portion includes the locking portion in a state facing a back surface between a base end and a front end of the main body. A pressing piece is formed, which is urged in a direction in which the locking portion is released from the locked portion to release the locking portion from the locked portion.
[0008]
According to the distribution board according to the first aspect, the pressing piece formed on the operating body by rotating the operating body separate from the main body is locked facing the back surface between the base end and the front end of the main body. The locking part can be released from the locked part by pressing and urging it in the direction to release the part from the locked part, so the locking part is locked as it is by the amount of pressing from the base end to the tip of the main body Can be removed from the part. Therefore, the locking member is less likely to be damaged as compared with the related art.
[0009]
The distribution board according to claim 2, wherein in the state in which the locked portion is locked by the locking portion, the pushing piece that abuts on the negative end surface of the plug-in breaker is the main body. It is provided in.
[0010]
According to the distribution board described in claim 2, in addition to the same effect as in claim 1, when the operating body rotates, the pushing piece of the main body comes into contact with one end surface of the plug-in breaker to remove the plug-in breaker. The plug-in breaker can be easily removed with the accumulated force by rotating the operating body and releasing the locked part from the locking part, which makes it easy to remove the plug-in breaker. Become.
[0011]
According to a third aspect of the present invention, in the power distribution panel according to the first aspect, in a state in which the locked portion is locked by the locking portion, the pushing piece abutting on one end surface of the plug-in breaker is driven by the main body. It is formed in the part.
[0012]
According to the distribution board of the third aspect, in addition to the same effect as the first aspect, when the operating body rotates, the pushing piece of the main body driving section abuts on one end surface of the plug-in breaker to activate the plug-in breaker. Accumulate the force in the removal direction, rotate the operating body as it is, and when the locked part comes off from the locking part, the accumulated force can easily remove the plug-in breaker, so the plug-in breaker removal work It will be easier.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
A first embodiment of the present invention will be described with reference to FIGS. This distribution board includes a base 1, a plurality of conductive bars 2 to 4, a plug-in breaker 5, and a locking member 6.
[0014]
The base 1 has a hook 7. On the base 1, plug-in breakers 5 are placed facing each other with a central portion 8 therebetween, and a plurality of the plug-in breakers 5 are arranged side by side in the horizontal direction. The base 1 has a fixed base 1a made of resin and a mounting base 1b made of metal, and the side of the mounting base 1b is attached to the inner bottom of a box-shaped body of the distribution board. The hook 7 is formed in an inverted L-shape that protrudes in opposite directions to the center 8 at both side edges of the base 1.
[0015]
The plurality of conductive bars 2 to 4 are arranged side by side in the height direction with respect to the base 1 in three stages: a lowermost stage, a middle stage, and an uppermost stage. In the embodiment, both ends are supported by a support member (not shown), and conductive bars 2 to 4 are provided stepwise on the central portion 8 of the base 1.
[0016]
As described above, the plurality of plug-in breakers 5 are arranged side by side with the base 1 along the extending direction of the conductive bars 2 to 4. On one side (front side) of each plug-in breaker 5, receiving blades 16 and 17 for inserting and connecting the conductive bars 2 to 4 are provided, and on the other side (rear side), a hooked portion 18 to be hooked on the hooking section 7 is provided. ing. A plurality of grooves 20 facing the conductive bars 2 to 4 are formed on one side of the plug-in breaker 5 for inserting the conductive bars 2 to 4, and the receiving blade 16 is disposed in the uppermost groove 20. The plug-in breaker 5 on the right side of FIG. 1 is disposed in the lowermost groove 20. The receiving blade 17 is configured to be movable in the middle groove 20, and the plug-in breaker 5 on the left side of FIG. 1 has the receiving blade 17 disposed in the middle groove 20 and is in contact with the conductive bar 3. In addition, the hooked portion 18 of the embodiment is formed in a concave shape by a substantially inverted L-shaped groove that opens to the side and below the plug-in breaker 5 substantially in conformity with the shape of the hooking portion 7. Therefore, the plug-in breaker 5 is locked by fitting the hook 7 into the recess of the hooked portion 18 and moving it forward while placing the plug-in breaker 5 on the base 1. When it is inserted, it is in a completely locked state, and its movement in the direction perpendicularly away from the base 1 is regulated. On the other hand, it can be detached from the hooked portion 18 by moving backward (the other side). Furthermore, on the upper surface on one side, the conductive blades 2 and 4 are inserted into the receiving blades 16 and 17, and the receiving bars 16 and 17 are detachably locked by the later-described locking portions 22 so that the receiving blades 16 and 17 are disengaged from the conductive bars 2 and 4. A locked portion 23 for preventing movement in the direction is provided. A pair of locked portions 23 are provided in parallel for each plug-in breaker 5 and are formed in an inclined shape that gradually projects upward from the most distal end where the contact with the locking portion 22 starts. For this reason, when the locking portion 22 is locked to the locked portion 23, the locking portion 22 can get over the locking portion 22 along the slope 23a, so that the locked portion 23 can be easily locked to the locking portion 22. The work of mounting the plug-in breaker 5 becomes easy.
[0017]
The locking member 6 includes a main body 25 and an operation body 26. The main body 25 has the locking portion 22 at the distal end and has a through hole 27 on the base end side facing the conductive bar side, and is attached to the uppermost conductive bar 4. In the embodiment, the locking member 6 is made of a synthetic resin. For example, as shown in FIG. 5, the main body 25 includes a base 25a extending in the direction in which the conductive bar 4 extends, and a base 25a attached to each of the plug-in breakers 5 installed. And a substantially T-shaped main body portion 25b extending from both sides thereof, and the locking portions 22 are formed on both shoulders thereof. In the embodiment, a through-hole 27 is formed on the base 25a for each pair of opposing plug-in breakers 5, and a pair of main bodies 25b are formed on both sides of the base 25a for each through-hole 27. A mounting hole 28 is formed in the conductive bar 4, and a column 29 press-fit into the mounting hole 28 is suspended from the base 25 a. At the tip of the support post 29, there is a small-diameter portion 29a penetrating through the mounting hole 28. A head 29b is formed at the tip of the small-diameter portion 29a, and a split groove 29b is formed at the center. As a result, the split groove 29c is narrowed and the head 29b penetrates through the mounting hole 28, and is restored to prevent the head 29b from being removed. Thus, the main body 25 is fixed at the height of the column 29 on the conductive bar 4.
[0018]
The operating body 26 is separate from the main body 25, has a rotating operation portion 26a inserted through a through hole 27 of the main body 25, and is connected to the rotating operating portion 26a to connect the main body 25 to the conductive bar 4. There is a main body driving unit 26b interposed between the main body 25 and the conductive bar-4 by the turning operation of the turning operation unit 26a. The main body driving portion 26b of the operation body 26 has a columnar shape, the lower surface is placed on the conductive bar 4, and the upper surface is in contact with the lower surface of the main body 25. The turning operation part 26a has a cylindrical shape with a smaller diameter than the main body driving part 26b, and is integrally connected to the upper surface of the main body driving part 26b, and the upper surface of the turning operation part 26a is for inserting an operating tool such as a driver. A groove 26c is formed. The main body driving portion 26b is urged in a direction in which the locking portion 22 is disengaged from the locked portion 23 in a state facing the back surface between the base end and the front end of the main body 25 so that the locking portion 22 is locked. A pressing piece 30 to be removed from 23 is formed. The pressing piece 30 is formed by a protrusion for pushing up the base end of the main body 25 around the rotation operation section 26a on the upper surface of the main body driving section 26b. The position of the pressing piece 30 is set so that each locking portion 22 of the main body 25 can be unlocked individually with respect to each plug-in breaker 5.
[0019]
Therefore, when the locked portion 23 is locked to the main body 25, the plug-in breaker 5 is slid so that the tip of the main body 25 rests on the upper surface of the plug-in breaker 5, and the locked portion 23 By sliding the inclined surface 23a, the locking portion 22 is moved over the locked portion 23 and locked in the state shown in FIGS. 1 and 2, for example. At this time, the pressing piece 30 is separated from the main body 25b. Next, for example, when one of the locking portions 22 (right side) in FIG. 1 is removed from the locked portion 23, the insertion groove 26c is rotated by a driver or the like as shown in FIG. So that it enters the lower surface of. As a result, the portion between the base end and the front end of the main body portion 25 b is pushed up by the amount of the protrusion of the pressing piece 30, and the locking portion 22 moves in a direction to be disengaged from the locked portion 23 and comes off.
[0020]
In this manner, by rotating the operation body 26 separate from the main body 25, the pressing piece 30 formed on the operation body 26 faces the back surface between the base end and the front end of the main body 25, and the locking portion 22. Can be released from the locked portion 23 to release the locking portion 22 from the locked portion 23. Can be removed from the locked portion 23. Therefore, the locking member 6 is hardly damaged. In this regard, Japanese Patent Application Laid-Open No. 2001-136611 discloses that the entire locking member is formed of an elastic body, and when the base end on one side of the pivot is pressed, the locking on the other end of the pivot is locked. Since the base member moves in the direction away from the locked portion, the amount of pressing of the base portion does not always match the amount of the locking portion separated from the locked portion, and the base portion is moved to remove the locking portion from the locked portion. If the pressure is further pressed, there is a possibility that the shaft may be damaged from the fulcrum.
[0021]
Further, the main body 25 is provided with an extruded piece 37 that comes into contact with the negative end surface 5a of the plug-in breaker 5 in a state where the locked portion 23 is locked to the locking portion 22. The extruded piece 37 of the embodiment is a projection having a triangular cross section projecting from the lower surface of the main body 25b. For example, the pushing piece 37 abuts on one end surface 5a of the plug-in breaker 5 in a state where the locking portion 22 is locked to the locked portion 23 as in the main body 25 on the left side of FIG. As the main body 25 is pushed up by the rotating operation part 26a as in the main body 25 on the right side of FIG. 3, the pushing piece 37 presses the one side end face 5a, but remains pressed until the locking part 22 comes off the locked part 23. The main body 25 elastically deforms to store the pressing force, and when the locking portion 22 is disengaged from the locked portion 23, the pushing piece 37 pushes the plug-in breaker 5 so that the plug-in breaker 5 is disengaged from the conductive bars 2 to 4. The plug-in breaker 5 can be detached, and at the same time, moves in the direction in which the hooked portion 18 also comes off the hooking portion 7, and the plug-in breaker 5 is simply placed on the base 1.
[0022]
As described above, when the operating body 26 rotates, the pushing piece 37 of the main body 25 abuts on one end surface 5a of the plug-in breaker 5 to accumulate the force in the direction of removing the plug-in breaker 5, and the operating body 26 rotates as it is. When the locked portion 23 is released from the locking portion 22, the plug-in breaker 5 can be easily removed with the accumulated force, so that the plug-in breaker 5 can be easily removed.
[0023]
FIG. 6 shows a state in which the lid of the distribution board is removed. The base 1 is attached to the inner bottom of the box-shaped body 43 of the distribution board, and the plug-in breakers 5 are arranged on the base 1 in two horizontal rows. The ends of the conductive bars 2 to 4 are connected to the main breaker 44 at the ends of the row. The plurality of main bodies 25 are mutually connected by a connecting portion 25c provided at an end. Numeral 45 is a knockout part for a traffic line.
[0024]
A second embodiment of the present invention will be described with reference to FIGS. In the first embodiment, an extruded piece 37 that abuts on one end surface 5a of the plug-in breaker 5 is formed in the main body driving portion 26b in a state where the locked portion 23 is locked by the locking portion 22. I have. The pushing piece 37 of the embodiment is a substantially triangular ridge in cross section projecting from the peripheral surface near the pressing piece 30 and extends over the entire length in the axial direction. Therefore, when the rotary operation portion 26a is rotated, the pushing piece 30 pushes the main body 25 up at substantially the same time as the pushing piece 30 pushes the front face from the state in which the pushing piece 37 comes into contact with the front face which is the one side end face 5a of the plug-in breaker 5. Then, at the same time when the locking portion 22 is disengaged from the locked portion 23, the plug-in breaker 5 is pushed rearward to facilitate removal. In addition, it is preferable that the pushing piece 37 and the pressing piece 30 are arranged in a fixed relationship, and the position is set so that each plug-in breaker 5 can be individually unlocked similarly to the first embodiment. Others are the same as the first embodiment.
[0025]
【The invention's effect】
According to the distribution board according to the first aspect, the pressing piece formed on the operating body by rotating the operating body separate from the main body is locked facing the back surface between the base end and the front end of the main body. The locking part can be released from the locked part by pressing and urging it in the direction to release the part from the locked part, so the locking part is locked as it is by the amount of pressing from the base end to the tip of the main body Can be removed from the part. Therefore, the locking member is less likely to be damaged as compared with the related art.
[0026]
According to the distribution board described in claim 2, in addition to the same effect as in claim 1, when the operating body rotates, the pushing piece of the main body comes into contact with one end surface of the plug-in breaker to remove the plug-in breaker. The plug-in breaker can be easily removed with the accumulated force by rotating the operating body and releasing the locked part from the locking part, making it easy to remove the plug-in breaker. Become.
[0027]
According to the distribution board of the third aspect, in addition to the same effect as the first aspect, when the operating body rotates, the pushing piece of the main body driving section abuts on one end surface of the plug-in breaker to activate the plug-in breaker. Accumulate the force in the removal direction, rotate the operating body as it is, and when the locked part comes off from the locking part, the accumulated force can easily remove the plug-in breaker, so the plug-in breaker removal work It will be easier.
[Brief description of the drawings]
FIG. 1 is a partial cross-sectional view of a plug-in breaker according to a first embodiment of the present invention in an installed state.
FIG. 2 is a partial perspective view thereof.
FIG. 3 is a partial view showing a state in which one locking portion is disengaged from a locked portion.
FIG. 4 is a partial perspective view of the same.
FIG. 5 is an exploded perspective view of a locking member on a conductive bar.
FIG. 6 is a plan view of the distribution board with a cover removed.
FIG. 7 is a perspective view of an operation body according to the second embodiment.
FIG. 8 is a partial cross-sectional view of the plug-in breaker in a state where one locking portion is released.
FIG. 9 is a partial sectional view of a conventional plug-in breaker in an attached state.
FIG. 10 is a perspective view showing a part of a conventional locking member and a plug-in breaker.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Base 2 Conductive bar 3 Conductive bar 4 Conductive bar 5 Plug-in breaker 5a One end face 6 Locking member 7 Hooking part 10 Engaging part 11 Engaging part 16 Receiving blade 17 Receiving blade 18 Hooked part 22 Hooked part 23 Locking part 23a Slope 25 Main body 26 Operating body 26a Rotating operating part 26b Main body driving part 30 Pressing piece 37 Pushing piece

Claims (3)

引掛部を有したベースと、このベースに対して高さ方向に並設した複数の導電バーと、これらの導電バーのうちの最上段の導電バーに基端が取着されて先端に前記導電バーの幅方向へ突出する係止部を設けた係止部材と、一方側に前記導電バーを差込接続する受刃を設けるとともに他方側に前記引掛部に引掛けられる被引掛部を設け、更に一方側上面には前記受刃に前記導電バーを差し込んだ状態で前記係止部に係脱可能に係止されて前記受刃が前記導電バーから外れる方向の移動を防止する被係止部が設けられて前記導電バーの延出方向に沿って横並びに前記ベースに並設される複数のプラグインブレーカと、を備えた分電盤において、
前記係止部材は、先端に前記係止部を有するとともに基端側に貫通孔を有して前記導電バーに取着される本体と、この本体とは別体であって前記本体の前記貫通孔に挿通された回動操作部を有するとともに前記回動操作部に連設されて前記本体と前記導電バーとの間に介在し、前記回動操作部の回動操作によって前記本体と前記導電バ−との間で回動する本体駆動部を有した操作体とで構成され、前記本体駆動部には、前記本体の基端および先端間の裏面に臨んだ状態で前記係止部を前記被係止部から外す方向に付勢して前記係止部を前記被係止部から外す押圧片が形成されたことを特徴とする分電盤。
A base having a hook portion, a plurality of conductive bars arranged side by side in the height direction with respect to the base, and a base end attached to the uppermost conductive bar of the conductive bars and An engaging member provided with an engaging portion protruding in the width direction of the bar, and a receiving blade to be inserted and connected to the conductive bar on one side and a hooked portion to be hooked on the engaging portion on the other side are provided, Further, on the upper surface on one side, a locked portion that is detachably locked to the locking portion with the conductive bar inserted into the receiving blade to prevent the receiving blade from moving in the direction away from the conductive bar. A plurality of plug-in breakers provided side by side along the extending direction of the conductive bar and side by side with the base,
The locking member has the locking portion at the distal end and has a through hole at the base end side and is attached to the conductive bar. The main body is separate from the main body, and the main body is separate from the main body. A rotating operation portion inserted into the hole, and connected to the rotating operation portion, interposed between the main body and the conductive bar, and the main body and the conductive member are rotated by the rotating operation portion; An operating body having a main body driving portion that rotates between a bar and the main body driving portion. The main body driving portion includes the locking portion in a state facing a back surface between a base end and a front end of the main body. A distribution panel, wherein a pressing piece is formed to urge the locking portion to be released from the locked portion so as to release the locking portion from the locked portion.
前記係止部に前記被係止部が係止された状態で、前記プラグインブレーカの−方側端面に当接する押出し片を前記本体に設けた請求項1記載の分電盤。2. The distribution board according to claim 1, wherein an extruded piece that abuts on a negative end surface of the plug-in breaker is provided on the main body in a state where the locked portion is locked by the locking portion. 3. 前記係止部に前記被係止部が係止された状態で、前記プラグインブレーカの一方側端面に当接する押出し片を前記本体駆動部に形成した請求項1記載の分電盤。2. The distribution board according to claim 1, wherein an extruded piece that abuts on one end surface of the plug-in breaker is formed in the main body driving unit in a state where the locked portion is locked by the locking portion. 3.
JP2002306742A 2002-10-22 2002-10-22 Distribution board Pending JP2004147376A (en)

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JP2013230013A (en) * 2012-04-26 2013-11-07 Tempearl Ind Co Ltd Removing structure of circuit breaker
JP2017099284A (en) * 2017-01-27 2017-06-01 テンパール工業株式会社 Removal structure of circuit breaker
JP2017099283A (en) * 2017-01-27 2017-06-01 テンパール工業株式会社 Removal structure of circuit breaker

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006081297A (en) * 2004-09-09 2006-03-23 Tempearl Ind Co Ltd Home distribution board
JP4545532B2 (en) * 2004-09-09 2010-09-15 テンパール工業株式会社 Residential distribution board
JP2010226881A (en) * 2009-03-24 2010-10-07 Kawamura Electric Inc Device for removing breaker of distribution board
JP2013223392A (en) * 2012-04-19 2013-10-28 Tempearl Ind Co Ltd Removing structure of circuit breaker
JP2013230013A (en) * 2012-04-26 2013-11-07 Tempearl Ind Co Ltd Removing structure of circuit breaker
JP2017099284A (en) * 2017-01-27 2017-06-01 テンパール工業株式会社 Removal structure of circuit breaker
JP2017099283A (en) * 2017-01-27 2017-06-01 テンパール工業株式会社 Removal structure of circuit breaker

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