JP2004087280A - Fall-off prevention structure of plug-in breaker - Google Patents

Fall-off prevention structure of plug-in breaker Download PDF

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Publication number
JP2004087280A
JP2004087280A JP2002246249A JP2002246249A JP2004087280A JP 2004087280 A JP2004087280 A JP 2004087280A JP 2002246249 A JP2002246249 A JP 2002246249A JP 2002246249 A JP2002246249 A JP 2002246249A JP 2004087280 A JP2004087280 A JP 2004087280A
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Japan
Prior art keywords
plug
breaker
mounting plate
stopper
retaining
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.)
Pending
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JP2002246249A
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Japanese (ja)
Inventor
Tetsuya Hoshino
星野 哲也
Kengo Matsui
松井 謙吾
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Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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Publication date
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Priority to JP2002246249A priority Critical patent/JP2004087280A/en
Publication of JP2004087280A publication Critical patent/JP2004087280A/en
Pending legal-status Critical Current

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a fall-off prevention structure of a plug-in breaker capable of firmly fitting the plug-in breaker to a fitting plate. <P>SOLUTION: A fitting plate 1 having a hooking part 15, a plurality of conductive bars 2 to 4, and rest blades 12, 13, to plug in for connection to the conductive bars 2 to 4 are arranged on a front face, and at the same time, a plug-in breaker 5 having a hooked part 16 formed for preventing movement of in a height direction of the fitting plate 1 by being hooked to the hooking part 15 with the rest blades 12, 13 in a state plugged into the conductive bars 2 to 4 for connection is provided. A pendent piece 25 is fitted to the fitting plate 1 pending toward a side contrary to a loading side, to which a turning operation part 30 and a fall-off prevention member 27 is fitted having a stopper part 26 freely moving back and forth between a position protruding against the loading side surface of the fitting plate 1 and a position not protruding, the stopper part 26 locked to the plug-in breaker 5 by having the fall-off prevention member 27 turn. <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受刃が導電バーから外れる方向ヘプラグインブレーカが移動するのを防止するプラグインブレーカの抜止め構造に関する。
【0002】
【従来の技術】
従来例として特開2002−150911号に示すものが存在する。
【0003】
このものは、例えば図5に示すように取付板102に形成された爪部104にプラグインブレーカ100の底面に形成された凹部(図示せず)を引掛け、プラグインブレーカ100の後端に配設されたロックレバー107を取付板102に形成された嵌合部108に係止させてプラグインブレーカ100が導電バー111、112から外れる方向に移動するのを防止している。
【0004】
しかしながら、このものにあっては、プラグインブレーカ1の後端に配設されたロックレバー107を取付板102に形成された嵌合部108にスライドさせて係止するものであって、導電バー111、112から外れる方向にプラグインブレーカ100に力が加わると、ロックレバー107がプラグインブレーカ100内に収納される方向に力が加わり易く、もって、ロックレバー107が嵌合部108から外れ易く、プラグインブレーカ100を強固に取着することができないことが懸念される。
【0005】
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付板に強固に取着することができるプラグインブレーカの抜止め構造を提供することにある。
【0006】
【課題を解決するための手段】
請求項1記載のプラグインブレーカの抜止め構造は、引掛部を有した取付板と、この取付板に対して高さ方向に並設した複数の導電バーと、前記取付板に載置され前記取付板に沿って前進させて前記導電バーに差込接続する受刃を前面に配設するとともに、前記受刃を前記導電バーに差込接続した状態で前記引掛部に引掛けられて前記取付板の高さ方向の移動を防止する被引掛部を少なくとも一面に形成したプラグインブレーカとを備え、前記受刃を前記導電バーに差込接続した状態で前記プラグインブレーカに係合して前記受刃が前記導電バーから外れる方向ヘ前記プラグインブレーカが移動するのを防止するプラグインブレーカの抜止め構造であって、
前記取付板に載置側と反対側へ垂下した垂下片を設け、この垂下片には、垂下片に垂直な軸線の回りに回動する回動操作部と、この回動操作部を操作したときに前記取付板の載置側表面に対して突出する位置と突出しない位置との間で進退自在なストッパ部とを有する抜止め部材が取着され、この抜止め部材を回動させて前記ストッパ部を前記プラグインブレーカに係合させることを特徴とするものである。
【0007】
請求項1記載のプラグインブレーカの抜止め構造によれば、抜止め部材が取付板の垂下片を回転中心面として回動するものであるので、取付板に対して出没するスライド方式のものに比べてプラグインブレーカに係止させた状態を安定させることができ、もってプラグインブレーカを取付板に強固に取着することができる。
【0008】
請求項2記載のプラグインブレーカの抜止め構造は、請求項1において、前記回動操作部が、指先でつまんで回動接作可能なつまみ部である請求項1記載のプラグインブレーカの抜け止め構造。
【0009】
請求項2記載のプラグインブレーカの抜止め構造によれば、請求項1と同様な効果のほか、工具を必要とせず指先で操作することができ、もって抜け止めが容易にできる。
【0010】
請求項3記載のプラグインブレーカの抜止め構造は、請求項2において、前記抜止め部材のストッパ部が前記垂下片の内側に配設され、前記取付板に抜止め部材のストッパ部が挿通される挿通孔を設けるとともに、前記垂下片に抜止め部材のつまみ部が挿通される遊挿孔を設けたものである。
【0011】
請求項3記載のプラグインブレーカの抜止め構造によれば、請求項2と同様な効果のほか、プラグインブレーカを導電バーから抜ける方向に力が加わってもストッパ部が取付板の挿通孔に当接してストッパ部が折れにくくなる。
【0012】
請求項4記載のプラグインブレーカの抜止め構造は、請求項1、請求項2または請求項3において、前記垂下片および抜止め部材に、少なくとも前記ストッパ部を前記プラグインブレーカに係止させた位置で前記ストッパ部が移動するのを防止する凹凸係合部を設けたものである。
【0013】
請求項4記載のプラグインブレーカの抜止め構造によれば、請求項1、請求項2または請求項3と同様な効果のほか、ストッパ部が回動して取付板の背面側に下がる恐れを少なくし、プラグインブレーカが不用意に外れるのを防止できる。
【0014】
請求項5記載のプラグインブレーカの抜止め構造は、請求項1、請求項2、請求項3または請求項4において、前記プラグインブレーカの複数を横並びに並設するとともに前記抜止め部材を横並びに並設した状態において、前記抜止め部材は、抜止め部材を回動させた状態で互いに干渉しない長さに形成されたものである。
【0015】
請求項5記載のプラグインブレーカの抜止め構造によれば、請求項1、請求項2、請求項3または請求項4と同様な効果のほか、抜止め部材を並設して個々に回動操作しても隣り合う抜止め部材が干渉することがなく、プラグインブレーカをスムーズに着脱させることができる。
【0016】
【発明の実施の形態】
この発明の一実施の形態を図1から図5により説明する。すなわち、このプラグインブレーカの抜止め構造は、取付板1と、複数の導電バー2〜4と、プラグインブレーカ5とを有する。
【0017】
取付板1はプラグインブレーカ5を載置固定するものであり、例えば金属板により形成し、プラグインブレーカ5を取付ける引掛部15を形成している。取付板1の中央部に沿って長手方向に延びる凹部6を形成し、凹部6にバー支持台7を設置し取付具(図示せず)により取付けている。このバー支持台7は中央に長手方向に延びた仕切り部8を有し、両端に支柱部(図示せず)を設けている。また取付板1はプラグインブレーカ5の両側を位置決めし左右に移動するのを規制するブレーカ位置決め部11を長手方向に一定間隔で複数個例えばたたき出し突起により形成し、その間にプラグインブレーカ5を配置している。引掛部15は取付板1の隣接するブレーカ位置決め部11間のブレーカ設置位置で取付板1の側端近傍に形成している。実施の形態では例えばプラグインブレーカ5の幅方向に相対向して切起こされた一対の切起こし片により形成している。
【0018】
複数の導電バー2〜4はそれぞれ帯板状であり、取付板1に対して高さ方向に並設している。バー支持台7の仕切り部8の両側にそれぞれ導電バー3、4を載置し、複数種類の位置決め部10により位置決めしている。各導電バー3、4の仕切り部8側の側部より仕切り部8に沿って高さの異なる一対のバー片3a、3bおよび一対のバー片4a、4bをブレーカ数に合わせて長手方向に交互に連続的に形成し、短いバー片3a、4aは自己の各バー上へ取付板1と平行になるように折り返し、長いバー片3b、4bは短いバー片3a、4aと反対向きになるように取付板1と平行に折曲しかつ仕切り部8を越えて延出している。また長いバー片3b、4bより高い位置で支柱部間に導電バー2を架設している。各導電バー2〜4の長手方向の端部は主幹ブレーカ(図示せず)の負荷側端子に接続されている。
【0019】
プラグインブレーカ5は取付板1に載置され取付板1に沿って前進させて導電バー2〜4に差込接続する受刃12、13を前面に配設するとともに、受刃12、13を導電バー2〜4に差込接続した状態で引掛部15に引掛けられて取付板1の高さ方向の移動を防止する被引掛部16を形成している。実施の形態では、複数のプラグインブレーカ5が導電バー2〜4の両側でその長手方向に沿って取付板1上に並設される。各プラグインブレーカ5の器台は前後方向を長手方向とし、その前端に入力端子となる受刃12、13をバー挿入溝17内に配設し、後端に出力端子53(図5参照)を配設している。なお図では受刃12を導電バー2に差し込み受刃13を導電バー4に差し込むようにしているが、100V、200Vの仕様に合わせて例えば受刃13を導電バー3に差し込むように受刃13を中位のバー挿入溝17に配設してもよい。
【0020】
被引掛部16はプラグインブレーカ5の少なくとも一面に形成すればよいが、実施の形態ではプラグインブレーカ5の両面に形成している。プラグインブレーカ5の各側面に、プラグインブレーカ5を取付板1に載置することにより引掛部15を進入させる第1凹部19を底面にまたがって形成し、さらにプラグインブレーカ5を前進することにより引掛部15が第1凹部19からプラグインブレーカ5の後方に進入する第2凹部20を形成し、これらにより被引掛部16が形成されている。被引掛部16の位置は取付板1の引掛部15の位置によって相対的に決まるが、プラグインブレーカ5を取付板1に載せ、プラグインブレーカ5を前進して受刃12、13が導電バー2、4に差し込まれる過程で引掛部15が被引掛部16に引っ掛かるように決めている。
【0021】
つぎに、このプラグインブレーカの抜止め構造は、受刃12、13を導電バー2、4に差込接続した状態でプラグインブレーカ5に係止して受刃12、13が導電バー2、4から外れる方向ヘプラグインブレーカ5が移動するのを防止するものである。取付板1はそのブレーカ載置側と反対側へ垂下した垂下片25を設けている。実施の形態では取付板1の凹部6と反対側の側端部を下方に折曲している。この垂下片25には、垂下片25に垂直な軸線の回りに回動する回動操作部30と、この回動操作部30を操作したときに取付板1の載置側表面に対して突出する位置と突出しない位置との間で進退自在なストッパ部26を有する抜止め部材27が取着され、この抜止め部材27を回動させてストッパ部26をプラグインブレーカ5に係止させる。これにより、抜止め部材27が取付板1の垂下片25を回転中心面として回動するものであるので、取付板1に対して出没するスライド方式のものに比べてプラグインブレーカ5に係止させた状態を安定させることができ、もってプラグインブレーカを取付板に強固に取着することができる。
【0022】
回動操作部30は、指先でつまんで回動操作可能なつまみ部としている。そして抜止め部材27のストッパ部26は垂下片25の内側に配設され、取付板1にストッパ部26が挿通される挿通孔31を設けるとともに、垂下片25に抜止め部材27の回動操作部30が挿通される遊挿孔32を設けている。これにより、プラグインブレーカ5を導電バー2、4から抜ける方向に力が加わってもストッパ部26が取付板1の挿通孔31に当接してストッパ部26が折れにくくなる。
さらに垂下片25および抜止め部材27に、少なくともストッパ部26をプラグインブレーカ5に係止させた位置でストッパ部26が移動するのを防止する凹凸係合部34を設けている。
【0023】
実施の形態では、抜止め部材27のストッパ部26を矩形板により形成し、その一端を回動中心の略曲率半径で円弧状に形成し、挿通孔31より突出する他端側をその曲率より大きい半径の円弧状に形成し、中央に例えば角形長孔の連結孔45を形成し、それよりもストッパ部26の一端側に凹凸係合部34の凸部34aを形成している。このストッパ部26を垂下壁25の内面に当接し、遊挿孔32を通して回動操作部30の連結部48を連結孔45に挿着している。回動操作部30は例えば略半円板状であり、その周側の平面部50の中央に連結部48を突出している。連結部48は中央先端に割り48aが入り弾性をもたせかつ先端両側に抜止め爪48bを突設している。回動操作部30の連結部48を遊挿孔32を通して連結孔45に押し込むと抜止め爪48bが連結孔45をくぐり抜けて回動操作部30の挿入側と反対側の孔縁に係止し、同時に平面部50が垂下壁25の表面に当接する。これにより抜止め部材26と回動操作部30で垂下壁25を挟んだ状態で垂下壁25に回動自在に保持される。また垂下壁25の遊挿孔32の周囲の側方および下方の互いに約90°離れた位置に凹凸係合部34の凹部34b、34cを形成し、図5に示すように凸部34aはストッパ部26が取付板1の表面から所定量突出した位置で凹部34cに嵌合し、ストッパ部26の約90度の回動によりがストッパ部26が取付板1の表面から後退した位置で凹部34bに嵌合する。この凹部34b、34cと凸部34aは抜止め部材27の回動によって相嵌合しかつ離脱しやすいようにテーパを付けることができる。また凹部34b、34cを抜止め部材27側に設け凸部34aを垂下壁25側に設けてもよい。
【0024】
図4(a)はストッパ部26を取付板1の表面から後退して抜止め部材27の凸部34aが凹部34bに嵌合した状態であり、この状態でプラグインブレーカ5を取付板1に載せて被引掛部16を引掛部15に引掛るとともに受刃12、13を導電バー2、4に差し込み接続でき、また受刃12、13を導電バー2、4から外し被引掛部16を引掛部15から外してプラグインブレーカ5を取付板1から取り出すこともできる。図4(b)はストッパ部26が取付板1の表面から突出した状態であり、受刃12、13を導電バー2、4に差し込み接続した状態で回動操作部30を強く回すと突部34aが凹部34cから離れ垂下壁25の内面をスライドして凹部34bに嵌合し、ストッパ部26はプラグインブレーカ5の後端面に係止する。このためプラグインブレーカ5はストッパ部26により後退動作が規制され、受刃12、13は導電バー2、4から外れない。また被引掛部16が引掛部15に引っ掛かっているため取付板1から上方に外すことが規制され、さらに位置決め部11によりプラグインブレーカ5が取付板1に沿って左右方向に移動することが規制される。なお、図4(b)の状態から回動操作部30を反対向きに強く回すと上記と反対の動作で図4(a)の状態となる。
【0025】
さらに図5に示すようにプラグインブレーカ5の複数を横並びに並設するとともに抜止め部材27を横並びに並設した状態において、抜止め部材27は、抜止め部材27を少なくとも必要な範囲だけ回動させた状態で互いに干渉しない長さに形成されている。これにより、抜止め部材27を並設して個々に回動操作しても隣り合う抜止め部材27が干渉することがなく、プラグインブレーカをスムーズに着脱させることができる。
【0026】
なお、本実施の形態によれば、ストッパ部26がプラグインブレーカ5の後端に係止されるようになっているが、プラグインプレーカ5の底面に孔(図示せず)を形成し、この孔内にストッパ部26を係止させるようにしても良い。この場合、ストッパ部26がプラグインブレーカ5で隠れるので見栄えが良くなる。また、つまみ部が平板状であって、ストッパ部26が取付板1の表面に対して突出する位置と突出しない位置とで、取付板1の正面、すなわち例えば図5に示すように分電盤の正面から見てつまみ部が横向きと縦向きに異なる形に見えるので、プラグインブレーカ1の取付状態が簡単に分かる。
【0027】
さらに、プラグインブレーカ5の左右方向への移動の規制は位置決め部11に限らず、例えば隣接するブレーカで支持したり他の手段を用いることができる。
【0028】
【発明の効果】
請求項1記載のプラグインブレーカの抜止め構造によれば、抜止め部材が取付板の垂下片を回転中心面として回動するものであるので、取付板に対して出没するスライド方式のものに比べてプラグインブレーカに係止させた状態を安定させることができ、もってプラグインブレーカを取付板に強固に取着することができる。
【0029】
請求項2記載のプラグインブレーカの抜止め構造によれば、請求項1と同様な効果のほか、工具を必要とせず指先で操作することができ、もって抜け止めが容易にできる。
【0030】
請求項3記載のプラグインブレーカの抜止め構造によれば、請求項2と同様な効果のほか、プラグインブレーカを導電バーから抜ける方向に力が加わってもストッパ部が取付板の挿通孔に当接してストッパ部が折れにくくなる。
【0031】
請求項4記載のプラグインブレーカの抜止め構造によれば、請求項1、請求項2または請求項3と同様な効果のほか、ストッパ部が回動して取付板の背面側に下がる恐れを少なくし、プラグインブレーカが不用意に外れるのを防止できる。
【0032】
請求項5記載のプラグインブレーカの抜止め構造によれば、請求項1、請求項2、請求項3または請求項4と同様な効果のほか、抜止め部材を並設して個々に回動操作しても隣り合う抜止め部材が干渉することがなく、プラグインブレーカをスムーズに着脱させることができる。
【図面の簡単な説明】
【図1】本発明の一実施の形態のプラグインブレーカの抜止め構造の断面図である。
【図2】その要部分解斜視図である。
【図3】抜止め部材の分解斜視図である。
【図4】(a)は抜け止め部材の係止解除の状態を説明する断面図、(b)は抜け止め部材の係止状態を説明する断面図である。
【図5】複数のプラグインブレーカを並設した状態の抜止め部材の相互干渉の回避を説明する部分正面図である。
【図6】従来例の分解斜視図である。
【符号の説明】
1  取付板
2〜4  導電バー
5  プラグインブレーカ
12、13  受刃
15  引掛部
16  被引掛部
25  垂下片
26  ストッパ部
27  抜止め部材
30  回動操作部
31  挿通孔
32  遊挿孔
34  凹凸係合部
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a plug-in breaker retaining structure for preventing a plug-in breaker from moving in a direction in which a receiving blade of the plug-in breaker comes off a conductive bar.
[0002]
[Prior art]
A conventional example is disclosed in JP-A-2002-150911.
[0003]
For example, as shown in FIG. 5, a concave portion (not shown) formed on the bottom surface of the plug-in breaker 100 is hooked on a claw portion 104 formed on the mounting plate 102 as shown in FIG. The provided lock lever 107 is engaged with a fitting portion 108 formed on the mounting plate 102 to prevent the plug-in breaker 100 from moving away from the conductive bars 111 and 112.
[0004]
However, in this case, the lock lever 107 provided at the rear end of the plug-in breaker 1 is slid and engaged with the fitting portion 108 formed on the mounting plate 102, and the conductive bar When a force is applied to the plug-in breaker 100 in a direction in which the lock lever 107 is disengaged from the plug-in breaker 100, a force is easily applied in a direction in which the lock lever 107 is housed in the plug-in breaker 100. It is feared that plug-in breaker 100 cannot be firmly attached.
[0005]
The present invention has been made in view of such circumstances, and its purpose is to
An object of the present invention is to provide a plug-in breaker retaining structure capable of firmly attaching a plug-in breaker to a mounting plate.
[0006]
[Means for Solving the Problems]
The plug-in breaker retaining structure according to claim 1, wherein the mounting plate has a hook portion, a plurality of conductive bars arranged in a height direction with respect to the mounting plate, and the mounting plate is mounted on the mounting plate. A receiving blade, which advances along the mounting plate and is inserted and connected to the conductive bar, is disposed on the front surface, and the receiving blade is hooked on the hook portion with the receiving blade inserted and connected to the conductive bar. A plug-in breaker formed on at least one surface with a hooked portion for preventing movement of the plate in the height direction, and engaging the plug-in breaker with the receiving blade inserted and connected to the conductive bar. A plug-in breaker retaining structure for preventing the plug-in breaker from moving in a direction in which a receiving blade is disengaged from the conductive bar,
The mounting plate is provided with a hanging piece that hangs down to the opposite side from the mounting side, and the hanging piece is operated with a turning operation section that turns around an axis perpendicular to the hanging piece and the turning operation section. Sometimes, a stopper member having a stopper portion that can move forward and backward between a position protruding with respect to the mounting side surface of the mounting plate and a position not protruding is attached, and the stopper member is rotated to rotate the stopper member. A stopper is engaged with the plug-in breaker.
[0007]
According to the plug-in breaker retaining structure of the first aspect, the retaining member rotates about the hanging piece of the mounting plate as the rotation center plane. In comparison, the state of being locked to the plug-in breaker can be stabilized, so that the plug-in breaker can be firmly attached to the mounting plate.
[0008]
In the plug-in breaker retaining structure according to claim 2, the plug-in breaker according to claim 1, wherein the rotating operation portion is a knob portion that can be pinched with a fingertip and rotatably contacted. Stop structure.
[0009]
According to the plug-in breaker retaining structure of the second aspect, in addition to the same effects as those of the first aspect, the plug-in breaker can be operated with a fingertip without the need for a tool, so that the retaining can be easily performed.
[0010]
In the plug-in breaker retaining structure according to a third aspect, in the second aspect, the stopper portion of the retaining member is disposed inside the hanging piece, and the stopper portion of the retaining member is inserted through the mounting plate. And a loose insertion hole through which the knob of the retaining member is inserted is provided in the hanging piece.
[0011]
According to the plug-in breaker retaining structure of the third aspect, in addition to the same effects as those of the second aspect, even if a force is applied in the direction of pulling the plug-in breaker out of the conductive bar, the stopper portion is inserted into the insertion hole of the mounting plate. The stopper portion is less likely to break due to the contact.
[0012]
According to a fourth aspect of the present invention, in the plug-in breaker retaining structure according to the first, second, or third aspect, at least the stopper portion is locked to the plug-in breaker by the hanging piece and the retaining member. A concave-convex engaging portion for preventing the stopper from moving at the position is provided.
[0013]
According to the plug-in breaker retaining structure of the fourth aspect, in addition to the same effects as those of the first, second, or third aspect, there is a possibility that the stopper portion pivots and falls to the rear side of the mounting plate. It is possible to prevent the plug-in breaker from accidentally coming off.
[0014]
According to a fifth aspect of the present invention, in the plug-in breaker retaining structure according to the first, second, third, or fourth aspect, a plurality of the plug-in breakers are arranged side by side and the retaining members are arranged side by side. In the state where the stopper members are arranged side by side, the stopper members are formed to have a length that does not interfere with each other when the stopper members are rotated.
[0015]
According to the plug-in breaker retaining structure of the fifth aspect, in addition to the same effects as those of the first, second, third or fourth aspects, the retaining members are arranged side by side and individually rotated. Even when operated, the adjacent retaining members do not interfere, and the plug-in breaker can be smoothly attached and detached.
[0016]
BEST MODE FOR CARRYING OUT THE INVENTION
One embodiment of the present invention will be described with reference to FIGS. That is, the plug-in breaker retaining structure includes the mounting plate 1, the plurality of conductive bars 2 to 4, and the plug-in breaker 5.
[0017]
The mounting plate 1 is for mounting and fixing the plug-in breaker 5, and is formed of, for example, a metal plate, and forms a hook portion 15 for mounting the plug-in breaker 5. A recess 6 extending in the longitudinal direction is formed along the center of the mounting plate 1, and a bar support 7 is installed in the recess 6 and attached by a fixture (not shown). The bar support 7 has a partition 8 extending in the longitudinal direction at the center, and supports (not shown) at both ends. Further, the mounting plate 1 is formed with a plurality of breaker positioning portions 11 for positioning the plug-in breaker 5 on both sides thereof and restricting the plug-in breaker 5 from moving left and right at regular intervals in the longitudinal direction, for example, by projecting protrusions. are doing. The hook portion 15 is formed near the side end of the mounting plate 1 at the breaker installation position between the adjacent breaker positioning portions 11 of the mounting plate 1. In the embodiment, for example, the plug-in breaker 5 is formed by a pair of cut-and-raised pieces cut and raised in the width direction of the plug-in breaker 5.
[0018]
Each of the plurality of conductive bars 2 to 4 has a strip shape and is arranged in parallel with the mounting plate 1 in the height direction. The conductive bars 3 and 4 are placed on both sides of the partition portion 8 of the bar support 7, respectively, and are positioned by a plurality of types of positioning portions 10. A pair of bar pieces 3a, 3b and a pair of bar pieces 4a, 4b having different heights along the partition 8 from the side of the conductive bar 3, 4 on the partition 8 side are alternately arranged in the longitudinal direction according to the number of breakers. The short bar pieces 3a, 4a are folded back onto their own bars so as to be parallel to the mounting plate 1, and the long bar pieces 3b, 4b are oriented in the opposite direction to the short bar pieces 3a, 4a. Is bent in parallel with the mounting plate 1 and extends beyond the partition 8. In addition, the conductive bar 2 is erected between the columns at positions higher than the long bar pieces 3b and 4b. The longitudinal ends of the conductive bars 2 to 4 are connected to load-side terminals of a main breaker (not shown).
[0019]
The plug-in breaker 5 is provided on the mounting plate 1, and the receiving blades 12, 13 which are advanced along the mounting plate 1 to be inserted and connected to the conductive bars 2 to 4 are arranged on the front surface. A hooked portion 16 which is hooked on the hooking portion 15 while being plugged and connected to the conductive bars 2 to 4 to prevent the mounting plate 1 from moving in the height direction is formed. In the embodiment, a plurality of plug-in breakers 5 are juxtaposed on the mounting plate 1 along the longitudinal direction on both sides of the conductive bars 2 to 4. The base of each plug-in breaker 5 has a longitudinal direction in the front-rear direction, receiving blades 12 and 13 serving as input terminals are disposed in the bar insertion groove 17 at the front end, and output terminals 53 are provided at the rear end (see FIG. 5). Is arranged. Although the receiving blade 12 is inserted into the conductive bar 2 and the receiving blade 13 is inserted into the conductive bar 4 in the drawing, the receiving blade 13 is inserted into the conductive bar 3 according to the specifications of 100 V and 200 V, for example. May be arranged in the middle bar insertion groove 17.
[0020]
The hooked portion 16 may be formed on at least one surface of the plug-in breaker 5, but is formed on both surfaces of the plug-in breaker 5 in the embodiment. On each side surface of the plug-in breaker 5, a first concave portion 19 for allowing the hooking portion 15 to enter by placing the plug-in breaker 5 on the mounting plate 1 is formed across the bottom surface, and the plug-in breaker 5 is further advanced. As a result, a second concave portion 20 is formed in which the hook portion 15 enters behind the plug-in breaker 5 from the first concave portion 19, and the hooked portion 16 is formed by these. Although the position of the hooked portion 16 is relatively determined by the position of the hook portion 15 of the mounting plate 1, the plug-in breaker 5 is placed on the mounting plate 1, and the plug-in breaker 5 is moved forward so that the receiving blades 12, 13 are electrically conductive bars. The hook 15 is determined to be hooked on the hook 16 in the process of being inserted into the hooks 2 and 4.
[0021]
Next, in the plug-in breaker retaining structure, the receiving blades 12 and 13 are engaged with the plug-in breaker 5 in a state where the receiving blades 12 and 13 are inserted and connected to the conductive bars 2 and 4 so that the receiving blades 12 and 13 are connected to the conductive bars 2 and The plug-in breaker 5 is prevented from moving in a direction away from the plug-in breaker 4. The mounting plate 1 is provided with a hanging piece 25 hanging down to the side opposite to the breaker mounting side. In the embodiment, the side end of the mounting plate 1 opposite to the recess 6 is bent downward. The hanging piece 25 includes a rotating operation part 30 that rotates around an axis perpendicular to the hanging piece 25, and a projecting part that protrudes from the mounting surface of the mounting plate 1 when the rotating operation part 30 is operated. A stopper member 27 having a stopper portion 26 which can move forward and backward between a position where the stopper member 26 does not project and a position where the stopper member 26 does not project is attached. The stopper member 27 is rotated to lock the stopper portion 26 to the plug-in breaker 5. As a result, the retaining member 27 rotates about the hanging piece 25 of the mounting plate 1 as a rotation center plane, so that the retaining member 27 is locked to the plug-in breaker 5 as compared with the slide type that protrudes and retracts from the mounting plate 1. The plugged-in breaker can be firmly attached to the mounting plate.
[0022]
The turning operation unit 30 is a knob that can be turned by being pinched with a fingertip. The stopper 26 of the retaining member 27 is disposed inside the hanging piece 25, and the insertion plate 31 is provided with an insertion hole 31 through which the stopper 26 is inserted. A loose insertion hole 32 through which the portion 30 is inserted is provided. As a result, even if a force is applied in a direction in which the plug-in breaker 5 is removed from the conductive bars 2 and 4, the stopper portion 26 comes into contact with the insertion hole 31 of the mounting plate 1, so that the stopper portion 26 is not easily broken.
Further, the hanging piece 25 and the retaining member 27 are provided with a concave / convex engaging portion 34 for preventing the stopper portion 26 from moving at least at a position where the stopper portion 26 is locked to the plug-in breaker 5.
[0023]
In the embodiment, the stopper portion 26 of the retaining member 27 is formed of a rectangular plate, one end of which is formed in an arc shape with a substantially radius of curvature about the center of rotation, and the other end protruding from the insertion hole 31 is determined by its curvature. It is formed in an arc shape with a large radius, a connection hole 45 of, for example, a rectangular long hole is formed in the center, and a protrusion 34 a of the concave-convex engagement portion 34 is formed on one end side of the stopper portion 26. The stopper portion 26 is in contact with the inner surface of the hanging wall 25, and the connecting portion 48 of the rotating operation portion 30 is inserted into the connecting hole 45 through the play insertion hole 32. The rotating operation part 30 is, for example, substantially semi-disc-shaped, and has a connecting part 48 protruding at the center of the plane part 50 on the peripheral side. The connecting portion 48 has a split 48a at the center end to have elasticity, and has retaining claws 48b projecting from both sides of the end. When the connecting portion 48 of the rotating operation portion 30 is pushed into the connecting hole 45 through the play insertion hole 32, the retaining claw 48b passes through the connecting hole 45 and is locked on the hole edge of the rotating operating portion 30 on the side opposite to the insertion side. At the same time, the flat portion 50 comes into contact with the surface of the hanging wall 25. Accordingly, the hanging wall 25 is rotatably held by the suspending member 26 and the rotating operation unit 30 with the hanging wall 25 sandwiched therebetween. Further, recesses 34b and 34c of the concave / convex engaging portion 34 are formed at positions about 90 ° apart from each other around the play insertion hole 32 of the hanging wall 25. As shown in FIG. The stopper 26 fits into the recess 34c at a position protruding from the surface of the mounting plate 1 by a predetermined amount, and the stopper 26 is rotated by about 90 degrees so that the stopper 26 retreats from the surface of the mounting plate 1 at the recess 34b. Fits. The concave portions 34b and 34c and the convex portion 34a can be tapered so that they can be fitted and detached easily by the rotation of the retaining member 27. Also, the concave portions 34b and 34c may be provided on the retaining member 27 side, and the convex portion 34a may be provided on the hanging wall 25 side.
[0024]
FIG. 4A shows a state in which the stopper portion 26 is retracted from the surface of the mounting plate 1 and the convex portion 34a of the retaining member 27 is fitted in the concave portion 34b. In this state, the plug-in breaker 5 is attached to the mounting plate 1. The receiving portion 16 is hooked on the hooking portion 15 and the receiving blades 12 and 13 can be inserted and connected to the conductive bars 2 and 4, and the receiving blades 12 and 13 are removed from the conductive bars 2 and 4 and the hooking portion 16 is hooked. The plug-in breaker 5 can be removed from the mounting plate 1 by removing the plug-in breaker 5 from the portion 15. FIG. 4B shows a state in which the stopper portion 26 protrudes from the surface of the mounting plate 1. When the rotary operating portion 30 is strongly turned while the receiving blades 12, 13 are inserted into and connected to the conductive bars 2, 4, the protruding portion is formed. 34a is separated from the concave portion 34c and slides on the inner surface of the hanging wall 25 to fit into the concave portion 34b, and the stopper portion 26 is engaged with the rear end surface of the plug-in breaker 5. Therefore, the backward movement of the plug-in breaker 5 is restricted by the stopper portion 26, and the receiving blades 12, 13 do not come off from the conductive bars 2, 4. Further, since the hooked portion 16 is hooked on the hooking portion 15, it is restricted from being removed upward from the mounting plate 1, and further, the positioning portion 11 is restricted from moving the plug-in breaker 5 in the left-right direction along the mounting plate 1. Is done. When the rotation operation unit 30 is strongly turned in the opposite direction from the state shown in FIG. 4B, the state shown in FIG.
[0025]
Further, as shown in FIG. 5, in a state where a plurality of plug-in breakers 5 are arranged side by side and the retaining members 27 are arranged side by side, the retaining members 27 rotate the retaining members 27 at least to a necessary range. It is formed in a length that does not interfere with each other when it is moved. Accordingly, even if the retaining members 27 are juxtaposed and rotated individually, the adjacent retaining members 27 do not interfere with each other, and the plug-in breaker can be smoothly attached and detached.
[0026]
According to the present embodiment, the stopper 26 is locked to the rear end of the plug-in breaker 5, but a hole (not shown) is formed in the bottom surface of the plug-in breaker 5. Alternatively, the stopper 26 may be locked in this hole. In this case, since the stopper 26 is hidden by the plug-in breaker 5, the appearance is improved. Further, when the knob portion is flat and the stopper portion 26 protrudes from the surface of the mounting plate 1 and at a position where it does not protrude, the front of the mounting plate 1, that is, for example, as shown in FIG. When viewed from the front, the knob portion looks different in the horizontal and vertical directions, so that the mounting state of the plug-in breaker 1 can be easily understood.
[0027]
Further, the regulation of the movement of the plug-in breaker 5 in the left-right direction is not limited to the positioning section 11, and for example, the plug-in breaker 5 can be supported by an adjacent breaker or other means can be used.
[0028]
【The invention's effect】
According to the plug-in breaker retaining structure of the first aspect, the retaining member rotates about the hanging piece of the mounting plate as the rotation center plane. In comparison, the state of being locked to the plug-in breaker can be stabilized, so that the plug-in breaker can be firmly attached to the mounting plate.
[0029]
According to the plug-in breaker retaining structure of the second aspect, in addition to the same effects as those of the first aspect, the plug-in breaker can be operated with a fingertip without the need for a tool, so that the retaining can be easily performed.
[0030]
According to the plug-in breaker retaining structure of the third aspect, in addition to the same effects as those of the second aspect, even if a force is applied in the direction of pulling the plug-in breaker out of the conductive bar, the stopper portion is inserted into the insertion hole of the mounting plate. The stopper portion is less likely to break due to the contact.
[0031]
According to the plug-in breaker retaining structure of the fourth aspect, in addition to the same effects as those of the first, second, or third aspect, there is a possibility that the stopper portion pivots and falls to the rear side of the mounting plate. It is possible to prevent the plug-in breaker from accidentally coming off.
[0032]
According to the plug-in breaker retaining structure of the fifth aspect, in addition to the same effects as those of the first, second, third or fourth aspects, the retaining members are arranged side by side and individually rotated. Even when operated, the adjacent retaining members do not interfere, and the plug-in breaker can be smoothly attached and detached.
[Brief description of the drawings]
FIG. 1 is a sectional view of a plug-in breaker retaining structure according to an embodiment of the present invention.
FIG. 2 is an exploded perspective view of the main part.
FIG. 3 is an exploded perspective view of a retaining member.
4A is a cross-sectional view illustrating a state in which the retaining member is unlocked, and FIG. 4B is a cross-sectional view illustrating a locked state of the retaining member.
FIG. 5 is a partial front view illustrating avoidance of mutual interference of the retaining members in a state where a plurality of plug-in breakers are arranged in parallel.
FIG. 6 is an exploded perspective view of a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Mounting plate 2-4 Conductive bar 5 Plug-in breaker 12, 13 Receiving blade 15 Hook part 16 Hook part 25 Hanging piece 26 Stopper part 27 Detachment member 30 Rotating operation part 31 Insertion hole 32 Play insertion hole 34 Unevenness engagement Department

Claims (5)

引掛部を有した取付板と、この取付板に対して高さ方向に並設した複数の導電バーと、前記取付板に載置され前記取付板に沿って前進させて前記導電バーに差込接続する受刃を前面に配設するとともに、前記受刃を前記導電バーに差込接続した状態で前記引掛部に引掛けられて前記取付板の高さ方向の移動を防止する被引掛部を少なくとも一面に形成したプラグインブレーカとを備え、前記受刃を前記導電バーに差込接続した状態で前記プラグインブレーカに係合して前記受刃が前記導電バーから外れる方向ヘ前記プラグインブレーカが移動するのを防止するプラグインブレーカの抜止め構造であって、
前記取付板に載置側と反対側へ垂下した垂下片を設け、この垂下片には、垂下片に垂直な軸線の回りに回動する回動操作部と、この回動操作部を操作したときに前記取付板の載置側表面に対して突出する位置と突出しない位置との間で進退自在なストッパ部とを有する抜止め部材が取着され、この抜止め部材を回動させて前記ストッパ部を前記プラグインブレーカに係合させることを特徴とするプラグインブレーカの抜止め構造。
A mounting plate having a hook portion, a plurality of conductive bars arranged side by side in a height direction with respect to the mounting plate, and inserted into the conductive bar by being mounted on the mounting plate and advanced along the mounting plate; A receiving part to be connected is arranged on the front surface, and a hooked part that is hooked on the hooking part in a state where the receiving blade is inserted and connected to the conductive bar to prevent the mounting plate from moving in the height direction is provided. A plug-in breaker formed on at least one surface, wherein the plug-in breaker is engaged with the plug-in breaker while the receiving blade is inserted and connected to the conductive bar and the receiving blade is disengaged from the conductive bar. A plug-in breaker retaining structure that prevents
The mounting plate is provided with a hanging piece that hangs down to the opposite side from the mounting side, and the hanging piece is operated with a turning operation section that turns around an axis perpendicular to the hanging piece and the turning operation section. Sometimes, a stopper member having a stopper portion that can move forward and backward between a position protruding with respect to the mounting side surface of the mounting plate and a position not protruding is attached, and the stopper member is rotated to rotate the stopper member. A stopper structure for engaging a plug-in breaker, wherein a stopper portion is engaged with the plug-in breaker.
前記回動操作部は、指先でつまんで回動接作可能なつまみ部である請求項1記載のプラグインブレーカの抜け止め構造。The retaining structure for a plug-in breaker according to claim 1, wherein the rotation operation portion is a knob portion that can be rotated and contacted with a fingertip. 前記抜止め部材のストッパ部は前記垂下片の内側に配設され、前記取付板に抜止め部材のストッパ部が挿通される挿通孔を設けるとともに、前記垂下片に抜止め部材のつまみ部が挿通される遊挿孔を設けた請求項2記載のプラグインブレーカの抜止め構造。The stopper of the retaining member is provided inside the hanging piece, and the mounting plate is provided with an insertion hole through which the stopper of the retaining member is inserted, and the knob of the securing member is inserted into the hanging piece. 3. The retaining structure for a plug-in breaker according to claim 2, wherein a play insertion hole is provided. 前記垂下片および抜止め部材に、少なくとも前記ストッパ部を前記プラグインブレーカに係止させた位置で前記ストッパ部が移動するのを防止する凹凸係合部を設けた請求項1、請求項2または請求項3記載のプラグインブレーカの抜止め構造。3. The hanging member and the retaining member are provided with a concave / convex engaging portion for preventing the stopper from moving at least at a position where the stopper is locked to the plug-in breaker. The retaining structure for a plug-in breaker according to claim 3. 前記プラグインブレーカの複数を横並びに並設するとともに前記抜止め部材を横並びに並設した状態において、前記抜止め部材は、抜止め部材を回動させた状態で互いに干渉しない長さに形成された請求項1、請求項2、請求項3または請求項4記載のプラグインブレーカの抜止め構造。In a state where a plurality of the plug-in breakers are arranged side by side and the retaining members are arranged side by side, the retaining members are formed to have a length that does not interfere with each other when the retaining members are rotated. The plug-in breaker retaining structure according to claim 1, 2, 3, or 4.
JP2002246249A 2002-08-27 2002-08-27 Fall-off prevention structure of plug-in breaker Pending JP2004087280A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002246249A JP2004087280A (en) 2002-08-27 2002-08-27 Fall-off prevention structure of plug-in breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106024460A (en) * 2016-07-04 2016-10-12 河南平高通用电气有限公司 Single pole assembly tool for immobilized and encapsulated post terminal and casting method for immobilized and encapsulated post terminal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106024460A (en) * 2016-07-04 2016-10-12 河南平高通用电气有限公司 Single pole assembly tool for immobilized and encapsulated post terminal and casting method for immobilized and encapsulated post terminal
CN106024460B (en) * 2016-07-04 2019-01-29 河南平高通用电气有限公司 Pole monopole assembles assembly tool and pole pouring procedure

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