JP3847548B2

JP3847548B2 - Branching device

Info

Publication number: JP3847548B2
Application number: JP2000322450A
Authority: JP
Inventors: 茂鷲崎
Original assignee: Kyodo Ky Tec Corp
Current assignee: Kyodo Ky Tec Corp
Priority date: 2000-10-23
Filing date: 2000-10-23
Publication date: 2006-11-22
Anticipated expiration: 2020-10-23
Also published as: JP2002135951A

Description

【０００１】
【発明の属する技術分野】
本発明はバスダクトを分岐する分岐装置に関するものである。
【０００２】
【従来の技術】
従来、バスダクトの導体から電流を分岐する分岐装置に関する技術として、例えば実公昭６０−３９９９４号に開示されている技術がある。この技術は、プラグイン器具に、バスダクトの内部導体に差込接続するクリップと、前記クリップを挾みその両側にＵ状固定金具、およびクリップよりも長尺で且つ基部側縁に切欠部を有する金属取付板とを固定し、前記取付板を差込み係止するバスダクトの取付孔の下方板面に前記取付板と接触するアースクリップを設けてなるものである。
【０００３】
また、分岐装置の取付金具に関する技術として、例えば実公昭５９−２０７８４号に開示されている技術がある。この技術は、プラグイン器具に一体に取りつけられる取付板の両側板部にスタッドボルトが外方に向かって突出固定され、このスタッドボルトにはばねの弾発力によって左右内方に突出させられる固定フックが係合され、かつこの固定フックにはプラグイン器具をダクトに取りつけた状態のときに縁部に圧接してプラグイン器具に向かう方向の移動を制限するための係止斜面と、プラグイン器具を近接させたときにダクトの両側に接触することにより前記弾発力に抗して固定フックを外側方に移動させて縁部および係止斜面が接触するまで導くための傾斜した摺動面とが具備されている分岐装置の取付金具である。
【０００４】
【発明が解決しようとする課題】
しかし、実公昭６０−３９９９４号では、取付板を取付孔に係合する構成によって、ある程度取り付け作業の容易化、その確実性の向上を図っているものの、図に示されているように取付板が箱体に隠れた位置に設けられているため、取り付け作業者が取付板と取付孔を係合する場合に目視することが出来ず、カンに頼って取付板と取付孔を係合する作業を行うこととなり、また実公昭５９−２０７８４号には取付板と取付孔が存在せず、上記と同様に目視不可能な状態でクリップをプラグイン用開口部に挿入する作業を行うこととなる。そのため、取り付け作業が未だに困難であると共に、その確実性が低く、加えて後者の場合にはクリップ部とバスダクトが衝突してクリップ部が破損する事態が生ずるという不具合がある。
【０００５】
また、実公昭６０−３９９９４号では、取付板の形状が図示されている形状である場合に、図４のように取付板が下方に位置するような方向で固定する場合には問題ないが、バスダクトの電気幹線路を形成する建造物の関係上、分岐装置を全て図４に示す方向に固定するということは難しい。そして、前記取付板を図４の上下を逆にした向き、即ち取付板が上方に位置するような方向で固定する場合等は、困難な作業を経て取付孔に取付板を挿入したにも係わらず、簡単に取付板が取付孔から滑り落ちてしまう。そのため、取付孔に取付板を挿入した後も緊張した状態で取り付け作業を行うこと等が必要であり、かかる点からも多大な労力を必要とする。
【０００６】
さらに、実公昭６０−３９９９４号では、プラグイン器具を回動して取り付けを行い、ある程度取り付け作業の容易化を図っているが、取付板が設けられていない側の取り付け及び取り外し作業には、やはり工具を使用してボルトやナット等の締着具の締付け及び締外しを行い、プラグイン器具を取り付け及び取り外すことになる。かかる点からも未だ多大な労力を費やすことになる。
【０００７】
また、実公昭５９−２０７８４号の技術を取り付け作業に使用する場合、図に示されているように固定フックの底辺が側板部の底辺より高い位置にあるか或いは同一であり、係止斜面やコイルばねの付勢力でプラグイン器具が圧接固定されることから、取り付け作業がある程度容易化される。しかしながら、取り付け作業の際にはプラグイン器具を圧接固定した後、さらに蝶ナットを締める必要があると共に、取り外し作業の際には蝶ナットを緩める必要があり、例えばプラグイン器具を一度取り外して更に別の場所に取りつける場合には、蝶ナットの締め付けや緩める作業が必要であって、未だ多大な労力を費やすことが必要である。
【０００８】
本発明は、上記問題点を全て解消するものであって、その取り付け作業及び取り外し作業を容易に且つ確実に行うことができると共に、かかる作業に要する労力を飛躍的に低減することができる分岐装置を提供することを目的とするものである。
【０００９】
【課題を解決するための手段】
本発明の分岐装置は、箱体と、該箱体の取付面から突出して設けられた分岐用端子と、該取付面に若しくは該取付面前端の略近傍に設けられた係止部材とを有し、バスダクトの係止孔に該係止部材を挿入し、該係止部材を中心に回動しながら取り付けられる分岐装置であって、該取付面の垂直方向視で、該係止部材の少なくとも一部が該箱体の外周から突出した位置に設けられており、該係止部材には、その前方辺に該係止孔に引掛可能な係止用フック部が突出形成され、その後方辺の略先端に該取付面と略直角方向に延びる支持辺が形成され、該後方辺の略後端に略円弧凸状の案内辺が形成されていることを特徴とする。例えば本発明は、分岐用ボックスの底面の前方又は側面の前方など底面近傍に固定されて設けられた係止部材の少なくとも一部が、分岐用ボックスの周壁から突出した位置に形成されており、前記係止部材をバスダクトの係止孔に挿入し、前記係止孔に挿入された係止部材を中心に回動することで取り付けられる構成の分岐装置で、係止部材を分岐用ボックスに固定される基部と、基部の両側端縁を略直角に屈曲延設してなる係止片を有する構成とし、係止片の前方辺に係止孔に引掛可能な係止用フック部を設け、その後方辺にはボックス底面と略直交方向に伸びる支持辺を設け、基部の後方側辺と支持辺との間に略円弧状の案内辺を設けるものとする。
【００１０】
また、本発明の分岐装置は、箱体と、該箱体の取付面から突出して設けられた分岐用端子と、該取付面に若しくは該取付面前端の略近傍に設けられた係止部材とを有し、バスダクトの係止孔に該係止部材を挿入し、該係止部材を中心に回動しながら取り付けられる分岐装置であって、該係止部材には、その後方辺の略先端に該取付面と略直角方向に延びる支持辺が形成され、該後方辺の略後端に略円弧凸状の案内辺が形成されていることを特徴とし、更に、前記係止部材には、その前方辺に前記係止孔に引掛可能な係止用フック部が突出形成されていることを特徴とする。また、本発明のバスダクトユニット或いは接続ユニットは、箱体と、該箱体の取付面から突出して設けられた分岐用端子と、該取付面に若しくは該取付面前端の略近傍に設けられた係止部材とを有し、該係止部材の後方辺の略先端に該取付面と略直角方向に延びる支持辺が形成され、該後方辺の略後端に略円弧凸状の案内辺が形成されている分岐装置が、該係止部材を中心に回動しながら取り付けられるバスダクトユニット或いは接続ユニットであって、該バスダクトユニット或いは接続ユニットに該係止部材が挿入されて該回動中心となる係止孔が設けられていることを特徴とする。
【００１１】
さらに本発明の分岐装置は、上記分岐装置に於いて、前記取付面後端の略近傍にバネ部材によって左右から内方に付勢される固定フックが設けられ、該固定フックを係合してバスダクトに固定されることを特徴とする。例えば本発明の分岐装置は、ボックス底面の後方又は側面の後方からボックス下方に伸びる脚片を有する固定部材を設け、前記固定部材は脚片などの箇所でバスダクトのハウジングと固定可能な構成とし、更にその固定部材は、前記脚片の両外側面に設けたバネ部材の弾発力により左右に移動可能な固定フックを配設してなるものとする。
【００１２】
さらに本発明の分岐装置は、上記分岐装置に於いて、前記取付面後端の略近傍に脚片が突出して設けられ、該脚片の外方で前記バネ部材が支持され、前記固定フックは該脚片の外側で該バネ部材により内方に付勢される構成であり、該付勢方向に対する略垂直面で該固定フックの一部が該脚片から突出していることを特徴とするものである。例えば固定フックの底辺の一部が脚片の底辺よりも下方に位置する構成とする。また、本発明の分岐装置は、箱体と、該箱体の取付面から突出して設けられた分岐用端子と、該取付面の略近傍に突出して設けられた脚片と、該脚片の外方で支持されるバネ部材と、該脚片の外側で該バネ部材によって内方に付勢される固定フックとを有し、該付勢方向に対する略垂直面で該固定フックの一部が該脚片から突出している分岐装置としてもよい。
【００１３】
【作用】
本発明の分岐装置では、取付面の垂直方向視で、係止部材の少なくとも一部が箱体の外周から突出した位置に設けられているので、目視可能な状態で係止孔と係止部材を挿入することが可能であり、分岐装置のバスダクトへの取り付け作業を作業者一人で容易に行うことができる。
【００１４】
さらに係止部材を、その前方辺に前記係止孔に引掛可能な係止用フック部が突出形成され、その後方辺の略先端に前記取付面と略直角方向に延びる支持辺が形成され、該後方辺の略後端に略円弧凸状の案内辺が形成された構成とすることにより、例えば係止部材が上方に位置する向きで分岐装置を垂直布設されたバスダクトに固定する場合、分岐装置の重さを支持辺或いは案内辺で受け止めることが可能であり、更に支持辺が分岐装置の底面等に直交する方向に伸びて形成されていること等により、分岐装置が滑り落ちることを防止することができる。また例えば係止部材が下方に位置する向きで分岐装置を垂直布設されたバスダクトに固定する場合、前記係止用フック部が係止孔に引っ掛かる構成であることから、分岐装置の重さを係止用フック部で受け止めることが可能であり、滑り落ちることを防止できる。また例えば布設されたバスダクトの下方から分岐装置を固定する場合であっても、係止孔に係止用フック部を引っ掛けることで、ある程度の分岐装置の重さを係止用フック部で受け止めることが可能である。従って、分岐装置の取り付け作業を一層容易且つ確実に行うことができる。
【００１５】
さらに取付面の後端近傍にバネ部材によって左右から内方に付勢される固定フックを設け、固定フックを係合して分岐装置を固定する構成により、工具を使用せず、ワンタッチで取りつけることが可能となり、分岐装置の取り付け作業をより一層容易に行うことができる。
【００１６】
さらに固定フックの付勢方向と略垂直面で固定フックの一部が脚片から突出する構成によって、例えば下方に突出した固定フックを手等で外方に移動させることにより、容易に分岐装置を取り外すことができる。また、取り外し時に工具等を使用せず、且つ固定フックに係るバネの弾発力を変更せずに取り外し作業を行うことが可能なので、新たに取り付けする場合に、バネ部材の弾発力の調整をせずにワンタッチで取り付けることができる。
【００１７】
【発明の実施の形態】
以下、本発明の分岐装置の具体的な実施形態を図に於ける実施例に基づいて説明する。図１乃至図３は本発明の第１実施例の分岐装置を示し、図１は第１実施例の分岐装置を示す図、図２は前記分岐装置に於ける係止部材を示す図、図３は前記分岐装置に於ける固定部材を示す図である。
【００１８】
分岐装置１は、図１に示すようにボックス形であり、その箱体２には底面２ａから周壁である側壁２ｂ、前壁２ｃ、後壁２ｄが立設し、その上面には開閉可能な蓋体２ｅが設けられている。箱体底面２ａの略前端には係止部材３が設けられ、箱体底面２ａの略後端には固定部材４が設けられ、底面２ａの略前端で係止部材３の設置位置より中側に分岐用端子５が設置されている。箱体２内には、分岐用端子５を固定する端子台６と、ブレーカー７と、端子台６とブレーカー７を電気的に接続する可撓性導線８が設置され、図には省略するが、可撓性導線８からブレーカー７を介して箱体２の外に電源を分岐する構成となっている。
【００１９】
係止部材３は、図２に示す形状であり、平板状の基部３１と、基部３１の両端縁を略直角に屈曲延設してなる係止片３２・３２を有し、略コ字形の金具などの締着具を用いて基部３１が箱体底面２ａに固定され、前記固定状態で係止片３２・３２が下方向に延びる構成である。係止片３２の前方辺は基部３１の前方側辺３１ａから下方に延設され、前記係止片前方辺には前方へ屈曲して突出するように係止用フック部３２ａが形成され、図２（ｂ）、（ｄ）に示すように係止用フック部３２ａの先端から右斜め下方向に傾斜する傾斜辺３２ｂが形成されている。係止片前方辺の傾斜辺３２ｂの最下端からは、底辺３２ｃが図２（ｂ）、（ｄ）に於ける基部３１の長手方向と平行に後方へ向かって延設されている。底辺３２ｃの後端からは、係止片後方辺として、支持辺３２ｄが略直角に上方へ延設され、支持辺３２ｄの上端からは後方に膨らむ略円弧状の案内辺３２ｅが延設され、案内辺３２ｅの上端からは、箱体支持辺３２ｆが図２（ｂ）、（ｄ）に於ける基部３１の長手方向と平行に後方へ延設され、箱体支持辺３２ｆの後端から上方に略直角に延設されて基部３１の後方側辺３１ｂに到達する形状である。
【００２０】
前記係止部材３は、図２（ｃ）に示すように基部３１の上方から平面視した場合、係止用フック部３２ａが基部３１から前方へ突出した形状となっている。そして、図１に示すように、基部３１の一部が箱体前壁２ｃから突出する位置で、係止部材３が箱体２の前方側の底面２ａに固定される構成である。従って、後述するバスダクトへの取り付け作業時に、バスダクトの係止孔と係止片３２を目視しながら取り付け作業が行うことが可能であり、一人の人員で容易に取り付け作業を行うことができるようになっている。
【００２１】
固定部材４は、箱体２の後方側の底面２ａに固定されるものであって、図３に示すように断面略コ字形であり、平板状の基部４１と、基部４１の両側端から下方に突出形成された脚片４２とを有し、基部４１が箱体底面２ａに締着具等で固定される構成である。前記脚片４２には、その両内側面から外方に向かって各々ボルト４３・４３が挿通され、各ボルト４３には脚片４２外側に位置する軸部に固定フック４４とバネ部材４５が填められ、ボルト４３の略先端にはナット４６をバネ部材４５を圧縮状態にしながら螺合されており、脚片４２の外側面とナット４６間に固定フック４４と所定の付勢力を有する圧縮状態のバネ部材４５を介在させている。
【００２２】
固定フック４４は、バネ部材４５の弾力性によって脚片４２から外方への力を加えることにより多少外方へ移動可能な構成であると共に、外方への力がない場合或いは除去した場合には、所定の付勢力を有するバネ部材４５により固定フック４４に常時脚片４２方向へ付勢する力が加わっているので、固定フック４４は脚片４２に当接する或いは脚片４２方向に移動して当接することになる。なおボルト４３にはナット４６を締め付ける位置決め部材としてスリーブを挿通してもよく、前記スリーブでより容易にナットの位置決めやその位置決めによるバネ部材４５の弾発力の調整を行うことが可能となる。
【００２３】
固定部材４の固定フック４４は、図３に示すような形状であり、脚片４２に当接する基部面４４１と、基部面４４１の両側端縁を内方に略直角に屈曲延設させた屈曲片４４２とを有する平面視略コ字形の部材である。屈曲片４４２には、基部４１の長手方向と平行に上側固定片４４２ａと下側固定片４４２ｂが所定間隔を置いて形設され、上側固定片４４２ａと下側固定片４４２ｂ間で後述する固定対象であるバスダクトの第２補強部の上下両端を支持する構成であり、下側固定片４４２ｂの先端からは下方で且つ外方へ傾斜する傾斜辺４４２ｃが形成され、前記傾斜辺４４２ｃで前記第２補強部を上側固定片４４２ａと下側固定片４４２ｂ間に案内するようになっている。
【００２４】
上側固定片４４２ａは脚片４２の長手方向に所定幅を有して形成され、前記所定幅によって分岐装置１の底面２ａとバスダクトの上面との間に空間部が形成可能であり、前記空間部内に、例えば係止部材３や固定部材４の基部３１、４１と分岐装置１の底面２ａとを固定するボルトの頭など締着具の一部を介在させることができ、バスダクトの上面が傷つくことを未然に防止可能な構成である。なお分岐装置１の底面２ａにも同様に、前記空間部を形成するための弾性体からなる凸部２ｆが設けられている。
【００２５】
更に固定フック４４の屈曲片４４２は脚片４２よりも長く形成されており、固定フック４４の最下端縁である底辺４４２ｄは、脚片４２の最下端縁である底辺４２ａよりも低い位置になる構成であり、図３（ｂ）に示す側面視では、脚片４２が固定フック４４の屈曲片４４２に完全に隠れるようになっている。前記構成により、固定フック４４の底辺４４２ｄに手などで外方への力を加えて固定フック４４を容易に移動し、固定部材４をバスダクトから取り外すことが可能となり、後述するバスダクトに取り付けられた状態から分岐装置１を取り外す作業の容易性を向上することができる。
【００２６】
次に、分岐装置１をバスダクトに取り付ける場合について説明する。図４は第１実施例の分岐装置とバスダクトの分離状態を示す側面図、図５は前記分岐装置の係止部材挿入状態を示す側面図、図６は前記分岐装置の取付状態を示す側面図、図７は固定部材とバスダクトの分離状態を示す一部断面正面図、図８は図７の固定部材の固定前段階を示す一部断面正面図、図９は図７の固定部材の固定状態を示す一部断面正面図である。
【００２７】
分岐装置１を取り付ける本例のバスダクト１０は、接続すべきバスダクトユニット１１・１１を別体の接続ユニット１２を介して相互に接続する構成であり、バスダクトユニット１１には、絶縁被覆された３相の絶縁被覆導体１１１が並設され、絶縁被覆導体１１１の幅方向両側に平面視略方形のパイプスペーサ１１２が配置されており、絶縁被覆導体１１１及びパイプスペーサ１１２を断面略コ字形の側板１１３・１１３で一括して狭持し、側板１１３に挿通したボルト１１４ａ、ナット１１４ｂ等の締着具を緊締して固定されている。前記側板１１３の両上下端縁には、狭持している絶縁被覆導体１１１から外方へ向かって第１補強部１１３ａが略直角に延設され、第１補強部の端縁には互いに向きあう方向に第２補強部１１３ｂが略直角に延設されており、バスダクトユニット１１やバスダクト１０自体の強度を保っている。
【００２８】
接続ユニット１２（図１７参照）には、接続すべきバスダクトユニット１１・１１の同相導体１１１・１１１間を電気的に接続する導電性接続部材１２１と、導電性接続部材１２１を含む異相の導体１１１・１１１間及び導電性接続部材１２１を含む最外側の導体１１１と接続側板１２３間を絶縁する絶縁セパレータ１２２と、これらを外方から狭持する接続側板１２３と、接続側板１２３の外方に配置された押圧部材１２４とが設けられており、これらを絶縁スリーブ１２５に挿通してなる締着具１２６で緊締してバスダクトユニット１１・１１を相互に接続する構成であり、接続前には締着具１２６によって仮締着された状態となっている。
【００２９】
接続ユニット１２でバスダクトユニット１１・１１を接続してバスダクト１０を構成する場合、接続すべきバスダクト１１・１１の導体１１１・１１１端部を同相の導電性接続部材１２１・１２１間に挿入し、バスダクト側板１１３と接続側板１２３とをボルトナット等の締着具で固定し、その後、仮締着している締着具１２６を緊締し、更に対応開放面である上下面に接続上下板１２７・１２７を配置してバスダクト１１・１１にビス止めする等で固定し、前記開放面を塞ぐことにより、バスダクト１１・１１相互の接続が完了する。なお、少なくとも分岐装置１の取付側の接続上下板１２７には、図６に示すように、係止片３２の係止孔１２７ａと分岐用端子５の挿通孔１２７ｂが穿設されている。
【００３０】
上記バスダクト１０から分岐を取る場合は、図４に示すように、接続ユニット１２の近傍に分岐装置１を配置し、図５に示すように、分岐装置１の取付側の接続上下板１２７に設けられた係止孔１２７ａに係止部材３の係止片３２を挿入する。前記挿入作業では、箱体２自体を傾けた状態で挿入し、且つ係止片３２の突出した係止用フック部３２ａが係止孔１２７ａの縁に引っ掛かるように挿入する。係止用フック部３２ａを係止孔１２７ａの縁に引っ掛かけた状態で、図６に示すように、傾いた箱体２を係止用フック部３２ａと係止孔１２７ａの縁を中心にバスダクト１０に添わせる状態まで回動し、その状態で固定部材４によってワンタッチで固定する。なお係止孔１２７ａに挿入した係止片３２は、接続側板１２３の外方に位置するように係止孔１２７ａが開口形成されているため、バスダクト１０の通電に影響しない。
【００３１】
固定部材４による固定に於いて、図７に示すように、固定部材４が固定される前は、固定フック４４と脚片４２が当接した状態となっている。そして、図８に示すように、固定部材４が固定される前段階として、バスダクトユニット１１の第１補強部１１３ａから第２補強部１１３ｂへ至る屈曲部近傍や第２補強部１１３ｂが固定フック４４の傾斜辺４４２ｃを付勢し、固定フック４４を外方に押す力が徐々に加わり、固定フック４４は徐々に外方へ移動する。そして、図９に示すように、第２補強部１１３ｂの下端縁より固定フック４４の下側固定片４４２ｂが下方に位置する状態となると、固定フックを外方へ付勢する力が無くなって固定フック４４が脚片４２の方向へ移動する。
【００３２】
前記移動により、第２補強部１１３ｂの高さより僅かに大きな寸法を有する固定フック４４の上側固定片４４２ａと下側固定片４４２ｂとの間に挟まれて第２補強部１１３ｂが位置し、箱体２の上方へ動く力を第２補強部１１３ｂと下側固定片４４２ｂとの係止によって制止し、分岐装置１の箱体２はバスダクト１０に固定される。
【００３３】
上記の如く分岐装置１をバスダクト１０に固定して取り付けた状態で、分岐装置１の分岐用端子５は接続上下板１２７に設けられた端子５を挿通する挿通孔１２７ｂを介して挿通され、バスダクト１０の接続ユニット１２の同相の導電性接続部材１２１・１２１間に填り込み、分岐用端子５とバスダクト１０の導体１１１は電気的に接続された状態となる（図示せず）。
【００３４】
上記構成により、テコの原理を利用してより小さな力で分岐装置１を取り付けることが可能となる等、バスダクト１０に分岐装置１を取り付ける作業を容易に行うことができる。更に固定部材４が第２補強部１１３ｂに当接する構成によって、工具を使用せずにワンタッチで確実に分岐装置１を固定することが可能となり、取り付け作業をより一層容易にすることができる。
【００３５】
更に図９に示すように、固定フック４４の底辺４４２ｆが脚片４２の底辺４２ａよりも下方に位置するように形成されているため、底辺４４２ｆから手などを入れて固定フック４４に外方へ力を加えることで、固定フック４４を外方へ移動し、分岐装置１を固定している下側固定片４４２ｂと第２補強部１１３ｂの下端縁を離すことが可能であり、容易に取り外しを行うことができる。前記取り外し作業も工具を使用せずに容易に行うことができ、また取外作業でバネ部材４５の弾発力の調整変更も行う必要がない。そして、例えば別の場所で取り外した分岐装置１により分岐を取る場合であっても、バネ部材４５の弾発力の調整変更を行っていないため、そのまま調整せずに容易に取り付けを行うことができる。
【００３６】
また上記構成のバスダクト１０及び分岐装置１に関して、例えば係止部材３が上方に位置する向きで分岐装置１を垂直支持されたバスダクト１０に取り付ける場合は、図１０及び図１１に示すように、分岐装置１の滑り落ちを防止することができる。即ち、バスダクト１０の係止孔１２７ａに係止部材３の係止片３２を挿入する際に、分岐装置１自体を上記同様に傾けた状態で挿入する。この挿入により、係止用フック部３２ａが係止孔１２７ａの上端縁に係合可能な状態で、更には係止片３２の下方に設けられた支持辺３２ｄと案内辺３２ｅが係止孔１２７ａの下端縁に載る状態となることによって、分岐装置１がバスダクトから滑り落ちることを防止することができる。従って、水平布設したバスダクト１０に分岐装置１を取り付ける場合と同様に、分岐装置１が重い場合であっても、係止片３２のみ挿入さえすれば、後の取り付け作業はワンタッチで行うことができ、分岐装置１の取付作業を飛躍的に容易化することができる。
【００３７】
以上、本発明の分岐装置１の第１実施例について説明したが、本発明は上記実施例に限定されるものではなく、以下のような拡張及び変形を行うことが可能である。
【００３８】
例えば第１実施例は、分岐装置１の底面２ａの前方向で、且つ前壁２ｃから突出する位置に係止部材３が固設されている例であるが、これに限定されるものではなく、例えばバスダクト１０の幅等に応じて、図１２に示すように両側壁２ｂ・２ｂから突出する位置に係止部材３を設けてもよく、又図１３に示すように、係止部材３は底面２ａではなく側壁２ｂ等に固定するようにしても良く、取り付け作業時に目視可能な位置であれば適宜である。なお図１３の係止部材３は、係止片３２の上方の一部が基部３１’となっており、基部３１’が分岐装置１の側壁２ｂに締着具等で固定される。
【００３９】
更に、係止部材３やその係止片３２、固定部材４やその固定フック４４等の形状及び構成は上記実施例に限定されるものではない。例えば突起状の係止用フック部３２ａを有する係止片３２など、係止部材３は図１４に例示するような様々な形状の係止部材３やその係止片３２であってもよく、好適には係止部材３は少なくとも係止用フック部３２ａと支持辺３２ｄ、案内辺３２ｅを有する構成であれば良い。また固定部材４の形状も、屈曲片４４２の先端の一部が略半円形に切り欠かれたものや傾斜辺になっているものなど、図１５及び図１６に例示するような様々な形状とすることが可能であり、好適には固定フック４４の底辺４４２ｆの一部が脚片４２の底辺４２ａよりも下方に突出した位置に設けられた構成であれば良い。
【００４０】
更に、分岐装置１の形状、大きさ、箱体２内の構造、或いはバスダクト１０の構造、バスダクトユニット１１や接続ユニット１２の構造等は上記実施例に限定されず、また分岐する場所も上記実施例の接続ユニット１２の上部に限定されるものではない。また、分岐装置１は接続ユニット１２を有しない、接続すべきバスダクトユニット１１・１１の導体１１１・１１１端部を互いに重ね合わせて締着具により接続する構成のバスダクト１０にも対応可能であり、この場合にはバスダクトユニット１１の１つ或いは２つなど複数に分岐装置１を取り付けることになる。更には絶縁被覆されたバスダクト１０ではなく、導体間を一定距離離間して空気で絶縁する空気絶縁型バスダクトにも、本発明の分岐装置は取付可能で対応することができる。
【００４１】
また、上記実施例では係止孔１２７ａがバスダクト１０の接続ユニット１２の接続上下板１２７に設けられた構成としたが、バスダクトユニット１１で分岐を行う場合は、第１補強部１１３ａに係止部材３の係止孔を開口することで対応することが可能となる。
【００４２】
更に、固定部材４の固定箇所は上記実施例に限定されず、接続ユニット１２上に固定部材４を固定しても良く、例えば図１７に示すように、バスダクト側板１１３に形成された第２補強部１１３ｂの代わりに、接続上下板１２７の屈曲した上下端縁に固定フック４４の上側固定片４４２ａと下側固定片４４２ｂを当接して固定するようにしても良い。なお接続ユニット１２に固定部材４を固定する場合として、例えば接続ユニット１２が長い場合、分岐装置１が短い場合、或いは接続ユニット１２以外のバスダクトユニット１１で分岐を取った場合などが考えられる。
【００４３】
【発明の効果】
本発明の分岐装置を使用することにより、その取り付け作業及び取り外し作業を容易に且つ確実に行うことができると共に、かかる作業に要する労力を飛躍的に低減することとができる効果を奏する。例えば取り付け及び取り外し作業を工具を使わずにワンタッチで確実に行うことが可能であり、また分岐装置の取り付け及び取り外し作業時に分岐装置の重量を殆ど支える必要がなくなること等により、確実な取り付け及び取り外し作業を少ない人員で容易に行うことができる。
【図面の簡単な説明】
【図１】（ａ）本発明の第１実施例の分岐装置を示す平面図。
（ｂ）第１実施例の分岐装置を示す側面図。
【図２】（ａ）第１実施例の分岐装置に於ける係止部材の正面図。
（ｂ）同図（ａ）の係止部材の右側面図。
（ｃ）同図（ａ）の係止部材の平面図。
（ｄ）同図（ａ）の係止部材のＡ−Ａ矢視断面図。
【図３】（ａ）第１実施例の分岐装置に於ける固定部材の一部断面正面図。
（ｂ）同図（ａ）の固定部材の右側面図。
（ｃ）同図（ａ）の固定部材の平面図。
（ｄ）同図（ａ）の固定部材の固定フックを示す断面正面図。
（ｅ）同図（ａ）の固定部材の固定フックを示す断面右側面図。
【図４】第１実施例の分岐装置とバスダクトの分離状態を示す側面図。
【図５】第１実施例の分岐装置とバスダクトの係止部材挿入状態を示す側面図。
【図６】第１実施例の分岐装置とバスダクトの取付状態を示す側面図。
【図７】第１実施例の分岐装置に於ける固定部材とバスダクトの分離状態を示す一部断面正面図。
【図８】第１実施例の分岐装置に於ける固定部材とバスダクトの固定前段階を示す一部断面正面図。
【図９】第１実施例の分岐装置に於ける固定部材とバスダクトの固定状態を示す一部断面正面図。
【図１０】第１実施例の分岐装置と垂直布設されたバスダクトの係止部材挿入状態を示す側面図。
【図１１】図１０の係止部材挿入箇所の拡大側面図。
【図１２】（ａ）第２実施例の分岐装置を示す平面図。
（ｂ）第２実施例の分岐装置を示す側面図。
【図１３】（ａ）第３実施例の分岐装置を示す平面図。
（ｂ）第３実施例の分岐装置を示す側面図。
【図１４】（ａ）係止部材の第１変形例を示す側面図。
（ｂ）係止部材の第２変形例を示す側面図。
（ｃ）係止部材の第３変形例を示す側面図。
（ｄ）係止部材の第４変形例を示す側面図。
【図１５】（ａ）固定部材の第１変形例を示す一部断面正面図。
（ｂ）固定部材の第１変形例を示す右側面図。
【図１６】（ａ）固定部材の第２変形例を示す一部断面正面図。
（ｂ）固定部材の第２変形例を示す右側面図。
【図１７】第１実施例の分岐装置に於ける固定部材とバスダクトの接続ユニットの固定状態を示す一部断面正面図。
【符号の説明】
１分岐装置
２箱体
３係止部材
３１、３１’ 基部
３２係止片
３２ａ係止用フック部
３２ｂ傾斜辺
３２ｄ支持辺
３２ｅ案内辺
４固定部材
４１基部
４２脚片
４４固定フック
４４２ａ上側固定片
４４２ｂ下側固定片
４５バネ部材
５分岐用端子
１０バスダクト
１１バスダクトユニット
１１３ｂ第２補強部
１２接続ユニット
１２７接続上下板
１２７ａ係止孔[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a branching device that branches a bus duct.
[0002]
[Prior art]
Conventionally, as a technique related to a branching device that branches current from a conductor of a bus duct, there is a technique disclosed in Japanese Utility Model Publication No. 60-39994, for example. This technique has a clip that plugs into a plug-in device and is inserted into and connected to the inner conductor of a bus duct, a U-shaped fixing bracket on both sides of the clip, and a cutout at the base side edge that is longer than the clip. An earth clip that contacts the mounting plate is provided on the lower plate surface of the mounting hole of the bus duct that fixes the metal mounting plate and inserts and locks the mounting plate.
[0003]
In addition, as a technique related to the mounting bracket of the branch device, there is a technique disclosed in, for example, Japanese Utility Model Publication No. 59-20784. In this technology, stud bolts are fixed to both sides of the mounting plate that is attached to the plug-in device. The stud bolts are fixed outwardly and protruded inward by the spring force of the spring. The hook is engaged, and when the plug-in device is attached to the duct, the fixed hook is pressed against the edge to restrict movement in the direction toward the plug-in device, An inclined sliding surface for guiding the edge until the edge and the locking slope come into contact with each other by moving the fixing hook outward against the elastic force by contacting both sides of the duct when the instrument is brought close Are mounting brackets of the branching device.
[0004]
[Problems to be solved by the invention]
However, in Japanese Utility Model Publication No. 60-39994, although the mounting plate is engaged with the mounting hole, the mounting operation is facilitated to some extent and the reliability thereof is improved. However, as shown in FIG. Since it is provided in a position hidden in the box, it cannot be visually observed when the mounting operator engages the mounting plate and the mounting hole, and the operation of engaging the mounting plate and the mounting hole by relying on the can In addition, in Japanese Utility Model Publication No. 59-20784, there is no mounting plate and mounting hole, and the work for inserting the clip into the plug-in opening is performed in the same manner as above. . Therefore, the mounting operation is still difficult and the reliability thereof is low. In addition, in the latter case, there is a problem that the clip portion collides with the bus duct and the clip portion is damaged.
[0005]
Moreover, in Japanese Utility Model Publication No. 60-39994, when the shape of the mounting plate is the shape shown in the figure, there is no problem when the mounting plate is fixed in the direction of being positioned downward as shown in FIG. It is difficult to fix all the branching devices in the direction shown in FIG. 4 because of the structure that forms the electric trunk line of the bus duct. When the mounting plate is fixed upside down in FIG. 4, that is, in a direction in which the mounting plate is positioned upward, the mounting plate is inserted into the mounting hole through a difficult operation. Therefore, the mounting plate easily slides down from the mounting hole. For this reason, it is necessary to perform attachment work in a tensioned state after inserting the attachment plate into the attachment hole, and much labor is required from this point.
[0006]
Furthermore, in Japanese Utility Model Publication No. 60-39994, the plug-in device is rotated and attached to facilitate the attachment work to some extent. However, in the attachment and removal work on the side where the attachment plate is not provided, A tool is also used to tighten and unfasten fasteners such as bolts and nuts, and plug-in devices are attached and removed. From this point, too much labor is still spent.
[0007]
Further, when the technique of Japanese Utility Model Publication No. 59-20784 is used for attachment work, as shown in the figure, the bottom side of the fixing hook is higher than or equal to the bottom side of the side plate portion, Since the plug-in device is pressed and fixed by the urging force of the coil spring, the mounting operation is facilitated to some extent. However, it is necessary to tighten the wing nut after the plug-in device is pressed and fixed at the time of installation work, and at the same time to loosen the wing nut at the time of removal work. When installing in another place, it is necessary to tighten and loosen the wing nut, and it is still necessary to spend a great deal of labor.
[0008]
The present invention solves all of the above-mentioned problems, and can easily and reliably perform the attaching operation and the removing operation, and can greatly reduce the labor required for the operation. Is intended to provide.
[0009]
[Means for Solving the Problems]
The branching device of the present invention is a box, a branching terminal provided protruding from the mounting surface of the box,Provided on the mounting surface or in the vicinity of the front end of the mounting surfaceA branching device having a locking member, inserting the locking member into a locking hole of the bus duct, and being mounted while rotating about the locking member, as viewed in the vertical direction of the mounting surface, At least a part of the locking member protrudes from the outer periphery of the boxThe locking member is formed with a locking hook portion that can be hooked in the locking hole on the front side of the locking member, and extends substantially perpendicular to the mounting surface at the front end of the locking side. A support side is formed, and a substantially arc-shaped guide side is formed at a substantially rear end of the rear side.It is characterized by that. For example, in the present invention, at least a part of the locking member that is fixed in the vicinity of the bottom surface such as the front of the bottom of the branch box or the front of the side surface is formed at a position protruding from the peripheral wall of the branch box, A branching device configured to be attached by inserting the locking member into a locking hole of a bus duct and turning the locking member inserted into the locking hole.The locking member has a base fixed to the branching box, and a locking piece formed by bending and extending both side edges of the base at a substantially right angle, and hooked to the locking hole on the front side of the locking piece. A hook portion for locking is provided, a support side extending in a direction substantially orthogonal to the bottom surface of the box is provided on the rear side, and a substantially arcuate guide side is provided between the rear side side of the base and the support side. To do.
[0010]
Further, the branching device of the present invention includes a box, a branching terminal provided so as to protrude from the mounting surface of the box, and a locking member provided on the mounting surface or in the vicinity of the front end of the mounting surface. A branching device that is inserted into the locking hole of the bus duct and pivoted about the locking member, the branching device being attached to the locking member substantially at the rear side A support side extending in a direction substantially perpendicular to the mounting surface is formed, a substantially arc-shaped guide side is formed at a substantially rear end of the rear side, and the locking member further includes: A locking hook portion that can be hooked into the locking hole is formed on the front side so as to protrude. The bus duct unit or the connection unit of the present invention includes a box, a branching terminal provided so as to protrude from the mounting surface of the box, and a connection provided on the mounting surface or in the vicinity of the front end of the mounting surface. A support side extending substantially perpendicular to the mounting surface is formed at a substantially leading end of the rear side of the locking member, and a substantially arc-shaped guide side is formed at a substantially rear end of the rear side. The branching device is a bus duct unit or connection unit that is mounted while rotating around the locking member, and the locking member is inserted into the bus duct unit or connection unit to become the rotation center A locking hole is provided.
[0011]
Furthermore, the branching device according to the present invention is provided with a fixing hook that is biased inward from the left and right by a spring member in the vicinity of the rear end of the mounting surface in the branching device, and engages the fixing hook. It is fixed to the bus duct. For example, the branching device of the present invention is provided with a fixing member having a leg piece extending from the rear of the bottom of the box or the rear of the side to the lower side of the box, and the fixing member can be fixed to the bus duct housing at a location such as the leg piece, Further, the fixing member is provided with fixing hooks that can be moved to the left and right by the elastic force of spring members provided on both outer side surfaces of the leg pieces.
[0012]
Further, the branching device of the present invention is the above branching device, wherein a leg piece is provided to protrude substantially in the vicinity of the rear end of the mounting surface, the spring member is supported on the outer side of the leg piece, and the fixing hook is It is configured to be urged inward by the spring member on the outside of the leg piece, and a part of the fixed hook protrudes from the leg piece in a plane substantially perpendicular to the urging direction. It is. For example, it is assumed that a part of the bottom side of the fixed hook is positioned below the bottom side of the leg piece.Further, the branching device of the present invention includes a box, a branch terminal provided so as to protrude from the attachment surface of the box, a leg piece provided so as to protrude substantially in the vicinity of the attachment surface, A spring member supported outward, and a fixing hook biased inward by the spring member outside the leg piece, and a portion of the fixing hook is substantially perpendicular to the biasing direction. A branching device protruding from the leg piece may be used.
[0013]
[Action]
In the branching device of the present invention, at least a part of the locking member is provided at a position protruding from the outer periphery of the box body when the mounting surface is viewed in the vertical direction. Can be inserted, and the work of attaching the branching device to the bus duct can be easily performed by one worker.
[0014]
Furthermore, a locking hook portion that can be hooked on the locking hole is projected and formed on the front side of the locking member, and a support side that extends in a direction substantially perpendicular to the mounting surface is formed at a substantially leading end of the rear side. By adopting a configuration in which a substantially arc-shaped guide side is formed at a substantially rear end of the rear side, for example, when the branching device is fixed to a vertically installed bus duct in a direction in which the locking member is positioned above, The weight of the device can be received by the support side or the guide side, and further, the support side is formed to extend in a direction perpendicular to the bottom surface of the branch device, etc., thereby preventing the branch device from sliding down. be able to. In addition, for example, when the branching device is fixed to a vertically installed bus duct in such a direction that the locking member is positioned below, the weight of the branching device is related to the structure in which the locking hook portion is caught in the locking hole. It can be received by the stopping hook portion, and can be prevented from slipping down. For example, even when the branch device is fixed from below the laid bus duct, a certain amount of weight of the branch device can be received by the locking hook portion by hooking the locking hook portion into the locking hole. Is possible. Therefore, the branching device can be attached more easily and reliably.
[0015]
In addition, a fixing hook that is urged inward from the left and right by a spring member is provided near the rear end of the mounting surface, and the branching device is fixed by engaging the fixing hook. Thus, the branching device can be attached more easily.
[0016]
Further, the structure in which a part of the fixed hook protrudes from the leg piece in a plane substantially perpendicular to the urging direction of the fixed hook, for example, by moving the fixed hook protruding downward by hand or the like, the branch device can be easily moved. Can be removed. In addition, it is possible to perform removal work without using a tool or the like at the time of removal and without changing the spring force of the fixed hook. Can be attached with a single touch without having to
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, specific embodiments of the branching device of the present invention will be described based on the examples in the drawings. 1 to 3 show a branching device according to a first embodiment of the present invention. FIG. 1 shows a branching device according to the first embodiment. FIG. 2 shows a locking member in the branching device. 3 is a view showing a fixing member in the branching device.
[0018]
As shown in FIG. 1, the branching device 1 has a box shape. A side wall 2b, a front wall 2c, and a rear wall 2d, which are peripheral walls, are erected from a bottom surface 2a of the box body 2, and can be opened and closed on the upper surface. A lid 2e is provided. A locking member 3 is provided at a substantially front end of the box bottom surface 2a, a fixing member 4 is provided at a substantially rear end of the box bottom surface 2a, and a middle side from the installation position of the locking member 3 at a substantially front end of the bottom surface 2a. A branching terminal 5 is provided in FIG. In the box 2, a terminal block 6 for fixing the branching terminal 5, a breaker 7, and a flexible conductive wire 8 for electrically connecting the terminal block 6 and the breaker 7 are installed. The power source is branched from the flexible conductor 8 to the outside of the box 2 through the breaker 7.
[0019]
The locking member 3 has a shape shown in FIG. 2 and includes a flat base 31 and locking pieces 32 and 32 formed by bending and extending both end edges of the base 31 at a substantially right angle. The base 31 is fixed to the box bottom surface 2a using a fastener such as a metal fitting, and the locking pieces 32, 32 extend downward in the fixed state. The front side of the locking piece 32 extends downward from the front side 31a of the base 31, and a locking hook portion 32a is formed on the front side of the locking piece so as to bend and protrude forward. As shown in 2 (b) and 2 (d), an inclined side 32b is formed, which is inclined obliquely downward to the right from the tip of the locking hook portion 32a. From the lowermost end of the inclined side 32b on the front side of the locking piece, a bottom side 32c extends rearward in parallel with the longitudinal direction of the base 31 in FIGS. 2 (b) and 2 (d). From the rear end of the bottom side 32c, a support side 32d extends upward at a substantially right angle as a locking piece rear side, and from the upper end of the support side 32d, a substantially arcuate guide side 32e bulging rearward extends. From the upper end of the guide side 32e, a box support side 32f extends rearward in parallel with the longitudinal direction of the base 31 in FIGS. 2B and 2D, and extends upward from the rear end of the box support side 32f. The shape extends substantially at right angles to the rear side 31b of the base 31.
[0020]
As shown in FIG. 2C, the locking member 3 has a shape in which a locking hook portion 32 a projects forward from the base portion 31 when viewed from above the base portion 31. And as shown in FIG. 1, it is the structure by which the latching member 3 is fixed to the bottom face 2a of the front side of the box 2 in the position where a part of base 31 protrudes from the box front wall 2c. Therefore, during the mounting operation to the bus duct, which will be described later, the mounting operation can be performed while visually observing the locking holes and the locking pieces 32 of the bus duct, so that one person can easily perform the mounting operation. It has become.
[0021]
The fixing member 4 is fixed to the bottom surface 2a on the rear side of the box 2 and has a substantially U-shaped cross section as shown in FIG. The base 41 is fixed to the box bottom surface 2a with a fastener or the like. Bolts 43 and 43 are respectively inserted into the leg pieces 42 from the inner side surfaces of the leg pieces 42, and a fixing hook 44 and a spring member 45 are fitted to the shafts located outside the leg pieces 42. The nut 43 is screwed onto the substantially distal end of the bolt 43 while the spring member 45 is in a compressed state. The fixed hook 44 and a predetermined urging force between the outer surface of the leg piece 42 and the nut 46 are in a compressed state. A spring member 45 is interposed.
[0022]
The fixed hook 44 is configured to be able to move slightly outward by applying an outward force from the leg piece 42 by the elasticity of the spring member 45, and when there is no outward force or when it is removed. Since the spring member 45 having a predetermined urging force always applies a force to the fixed hook 44 in the direction of the leg piece 42, the fixed hook 44 abuts on the leg piece 42 or moves in the direction of the leg piece 42. Will come into contact. Note that a sleeve may be inserted into the bolt 43 as a positioning member for tightening the nut 46, and the sleeve can be positioned more easily and the elastic force of the spring member 45 can be adjusted by the positioning.
[0023]
The fixing hook 44 of the fixing member 4 has a shape as shown in FIG. 3, and is a bent portion in which a base surface 441 that contacts the leg piece 42 and both side edges of the base surface 441 are bent and extended inward at substantially right angles. This is a substantially U-shaped member in plan view having a piece 442. In the bent piece 442, an upper fixing piece 442a and a lower fixing piece 442b are formed at a predetermined interval in parallel with the longitudinal direction of the base portion 41, and a fixing object described later between the upper fixing piece 442a and the lower fixing piece 442b. The second reinforcing portion of the bus duct is configured to support both upper and lower ends, and an inclined side 442c that is inclined downward and outward is formed from the tip of the lower fixing piece 442b, and the second side is formed by the inclined side 442c. The reinforcing portion is guided between the upper fixed piece 442a and the lower fixed piece 442b.
[0024]
The upper fixed piece 442a is formed to have a predetermined width in the longitudinal direction of the leg piece 42, and a space portion can be formed between the bottom surface 2a of the branching device 1 and the upper surface of the bus duct by the predetermined width. In addition, for example, a part of a fastener such as a bolt head for fixing the base portions 31 and 41 of the locking member 3 or the fixing member 4 and the bottom surface 2a of the branching device 1 can be interposed, and the upper surface of the bus duct is damaged. This is a configuration that can prevent the above. Similarly, the bottom surface 2a of the branching device 1 is provided with a convex portion 2f made of an elastic body for forming the space portion.
[0025]
Further, the bent piece 442 of the fixed hook 44 is formed longer than the leg piece 42, and the bottom side 442 d that is the lowermost end edge of the fixed hook 44 is positioned lower than the bottom side 42 a that is the lowermost end edge of the leg piece 42. The leg piece 42 is completely hidden by the bent piece 442 of the fixing hook 44 in the side view shown in FIG. With the above configuration, the fixing hook 44 can be easily moved by applying an outward force to the bottom 442d of the fixing hook 44 by hand or the like, and the fixing member 4 can be removed from the bus duct. The ease of the operation | work which removes the branch apparatus 1 from a state can be improved.
[0026]
Next, a case where the branch device 1 is attached to the bus duct will be described. 4 is a side view showing a separation state of the branching device and the bus duct according to the first embodiment, FIG. 5 is a side view showing a locking member insertion state of the branching device, and FIG. 6 is a side view showing a mounting state of the branching device. 7 is a partially sectional front view showing a separation state of the fixing member and the bus duct, FIG. 8 is a partially sectional front view showing a stage before fixing of the fixing member of FIG. 7, and FIG. 9 is a fixing state of the fixing member of FIG. It is a partial cross section front view which shows.
[0027]
The bus duct 10 of the present example to which the branching device 1 is attached has a configuration in which the bus duct units 11 and 11 to be connected are connected to each other via a separate connection unit 12, and the bus duct unit 11 has a three-phase insulating coating. Insulation-coated conductors 111 are arranged side by side, and substantially square pipe spacers 112 in a plan view are arranged on both sides of the insulation-coated conductor 111 in the width direction. The insulation-coated conductors 111 and the pipe spacers 112 are side plates 113. The bolts 114a, nuts 114b, and the like, which are held together at 113 and inserted into the side plate 113, are fastened and fixed. First and second reinforcing portions 113a extend substantially perpendicular to the upper and lower edges of the side plate 113 outwardly from the sandwiched insulation-coated conductor 111, and face each other at the edges of the first reinforcing portion. The second reinforcing portion 113b extends in a substantially perpendicular direction in the direction to meet, and the strength of the bus duct unit 11 and the bus duct 10 itself is maintained.
[0028]
The connection unit 12 (see FIG. 17) includes a conductive connection member 121 that electrically connects the in-phase conductors 111 and 111 of the bus duct units 11 and 11 to be connected, and a different-phase conductor 111 including the conductive connection member 121. An insulating separator 122 that insulates between the outermost conductor 111 including the conductive connection member 121 and the connection side plate 123, a connection side plate 123 that sandwiches these from the outside, and an outer side of the connection side plate 123 The pressing member 124 is provided, and the bus duct units 11 and 11 are connected to each other by being fastened by a fastening tool 126 formed by inserting them into the insulating sleeve 125. Before the connection, the fastening is performed. It is temporarily fastened by the tool 126.
[0029]
When connecting the bus duct units 11 and 11 with the connecting unit 12 to form the bus duct 10, the ends of the conductors 111 and 111 of the bus ducts 11 and 11 to be connected are inserted between the conductive connecting members 121 and 121 having the same phase. The side plate 113 and the connection side plate 123 are fixed with a fastening tool such as a bolt and nut, and then the fastening tool 126 that is temporarily fastened is fastened. Further, the connection upper and lower plates 127 and 127 are connected to the upper and lower surfaces that are the corresponding open surfaces. Are fixed to the bus ducts 11 and 11 by screws or the like, and the open surface is closed to complete the connection between the bus ducts 11 and 11. As shown in FIG. 6, at least the connection upper and lower plates 127 on the attachment side of the branching device 1 are provided with a locking hole 127 a of the locking piece 32 and an insertion hole 127 b of the branching terminal 5.
[0030]
When taking a branch from the bus duct 10, as shown in FIG. 4, the branch device 1 is arranged in the vicinity of the connection unit 12, and as shown in FIG. 5, provided on the connection upper and lower plates 127 on the attachment side of the branch device 1. The locking piece 32 of the locking member 3 is inserted into the formed locking hole 127a. In the insertion operation, the box 2 itself is inserted in an inclined state, and the locking hook portion 32a protruding from the locking piece 32 is inserted so as to be caught by the edge of the locking hole 127a. As shown in FIG. 6, with the hook portion 32a for hooking being hooked on the edge of the hooking hole 127a, the tilted box body 2 is centered on the edge of the hook portion 32a for locking and the hooking hole 127a. It rotates to the state where it is attached to the bus duct 10, and is fixed by the one-touch by the fixing member 4 in that state. In addition, since the locking hole 127a is formed so that the locking piece 32 inserted in the locking hole 127a is located outside the connection side plate 123, it does not affect the energization of the bus duct 10.
[0031]
In the fixing by the fixing member 4, as shown in FIG. 7, the fixing hook 44 and the leg piece 42 are in contact with each other before the fixing member 4 is fixed. As shown in FIG. 8, as a stage before the fixing member 4 is fixed, the vicinity of the bent portion from the first reinforcing portion 113 a to the second reinforcing portion 113 b of the bus duct unit 11 or the second reinforcing portion 113 b is the fixing hook 44. The inclined side 442c is urged and a force pushing the fixed hook 44 outward is gradually applied, and the fixed hook 44 gradually moves outward. As shown in FIG. 9, when the lower fixing piece 442b of the fixing hook 44 is positioned below the lower end edge of the second reinforcing portion 113b, there is no force to urge the fixing hook outward, and the fixing portion 44 is fixed. The hook 44 moves in the direction of the leg piece 42.
[0032]
By the movement, the second reinforcing portion 113b is located between the upper fixing piece 442a and the lower fixing piece 442b of the fixing hook 44 having a size slightly larger than the height of the second reinforcing portion 113b, and the box body 2 is restrained by the engagement of the second reinforcing portion 113b and the lower fixing piece 442b, and the box 2 of the branching device 1 is fixed to the bus duct 10.
[0033]
In the state where the branch device 1 is fixedly attached to the bus duct 10 as described above, the branch terminal 5 of the branch device 1 is inserted through the insertion hole 127b through which the terminal 5 provided in the connection upper and lower plates 127 is inserted. The connection terminals 121 and 121 having the same phase of the ten connection units 12 are inserted between the branch terminals 5 and the conductors 111 of the bus duct 10 (not shown).
[0034]
With the above configuration, the branch device 1 can be easily attached to the bus duct 10 such that the branch device 1 can be attached with a smaller force by utilizing the principle of leverage. Furthermore, with the configuration in which the fixing member 4 abuts against the second reinforcing portion 113b, the branching device 1 can be reliably fixed with one touch without using a tool, and attachment work can be further facilitated.
[0035]
Further, as shown in FIG. 9, since the bottom side 442f of the fixed hook 44 is formed so as to be positioned below the bottom side 42a of the leg piece 42, a hand or the like is put into the fixed hook 44 outward from the bottom side 442f. By applying force, it is possible to move the fixing hook 44 outward, and to separate the lower fixing piece 442b that fixes the branching device 1 from the lower end edge of the second reinforcing portion 113b. It can be carried out. The removal operation can be easily performed without using a tool, and it is not necessary to adjust and change the resilience of the spring member 45 in the removal operation. For example, even when branching is performed by the branching device 1 removed at another location, the adjustment of the elasticity of the spring member 45 is not changed, so that the mounting can be easily performed without adjustment. it can.
[0036]
Further, with respect to the bus duct 10 and the branching device 1 having the above-described configuration, for example, when the branching device 1 is attached to the vertically supported bus duct 10 in the direction in which the locking member 3 is positioned upward, as shown in FIGS. It is possible to prevent the device 1 from slipping down. That is, when the locking piece 32 of the locking member 3 is inserted into the locking hole 127a of the bus duct 10, the branching device 1 itself is inserted in the inclined state as described above. By this insertion, the locking hook portion 32a can be engaged with the upper end edge of the locking hole 127a, and the support side 32d and the guide side 32e provided below the locking piece 32 are further connected to the locking hole 127a. It becomes possible to prevent the branching device 1 from slipping down from the bus duct. Therefore, as in the case where the branch device 1 is attached to the horizontally laid bus duct 10, even if the branch device 1 is heavy, if only the locking piece 32 is inserted, the subsequent attachment work can be performed with one touch. The attachment work of the branch device 1 can be greatly facilitated.
[0037]
The first embodiment of the branching device 1 of the present invention has been described above. However, the present invention is not limited to the above-described embodiment, and the following expansion and modification can be performed.
[0038]
For example, the first embodiment is an example in which the locking member 3 is fixed in the forward direction of the bottom surface 2a of the branch device 1 and at a position protruding from the front wall 2c, but is not limited thereto. For example, depending on the width of the bus duct 10 or the like, the locking member 3 may be provided at a position protruding from the both side walls 2b and 2b as shown in FIG. 12, and as shown in FIG. It may be fixed to the side wall 2b or the like instead of the bottom surface 2a, as long as it is a position that can be visually observed during the mounting operation. In the locking member 3 in FIG. 13, a part of the upper side of the locking piece 32 is a base portion 31 ′, and the base portion 31 ′ is fixed to the side wall 2 b of the branching device 1 with a fastener or the like.
[0039]
Further, the shapes and configurations of the locking member 3 and the locking piece 32, the fixing member 4 and the fixing hook 44 thereof are not limited to the above embodiment. For example, the locking member 3 such as a locking piece 32 having a protruding locking hook portion 32a may be a locking member 3 having various shapes as illustrated in FIG. Preferably, the locking member 3 may have at least a locking hook portion 32a, a support side 32d, and a guide side 32e. Also, the shape of the fixing member 4 may be various shapes such as those illustrated in FIGS. 15 and 16, such as those in which a part of the tip of the bent piece 442 is cut out into a substantially semicircular shape or an inclined side. Preferably, a configuration in which a part of the bottom side 442f of the fixing hook 44 is provided at a position protruding downward from the bottom side 42a of the leg piece 42 may be used.
[0040]
Further, the shape and size of the branching device 1, the structure in the box 2, the structure of the bus duct 10, the structure of the bus duct unit 11 and the connection unit 12, etc. are not limited to the above embodiment, and the branching place is also implemented in the above embodiment. It is not limited to the upper part of the connection unit 12 in the example. Further, the branching device 1 does not have the connection unit 12 and can also correspond to the bus duct 10 having a configuration in which the ends of the conductors 111 and 111 of the bus duct units 11 and 11 to be connected are overlapped and connected by a fastener, In this case, the branch device 1 is attached to one or two of the bus duct units 11. Furthermore, the branching device of the present invention can be mounted and dealt with not only in the insulation-covered bus duct 10 but also in an air-insulated bus duct that is insulated by air with a certain distance between conductors.
[0041]
In the above embodiment, the locking hole 127a is provided in the connection upper and lower plates 127 of the connection unit 12 of the bus duct 10. However, when the bus duct unit 11 is branched, the locking member is connected to the first reinforcing portion 113a. It is possible to cope by opening the three locking holes.
[0042]
Further, the fixing location of the fixing member 4 is not limited to the above embodiment, and the fixing member 4 may be fixed on the connection unit 12. For example, as shown in FIG. 17, the second reinforcement formed on the bus duct side plate 113. Instead of the portion 113b, the upper fixing piece 442a and the lower fixing piece 442b of the fixing hook 44 may be contacted and fixed to the bent upper and lower edges of the connection upper and lower plates 127. Note that the fixing member 4 may be fixed to the connection unit 12, for example, when the connection unit 12 is long, when the branching device 1 is short, or when a branch is taken by the bus duct unit 11 other than the connection unit 12.
[0043]
【The invention's effect】
By using the branching device of the present invention, it is possible to easily and reliably perform the attaching operation and the removing operation, and it is possible to dramatically reduce the labor required for the operation. For example, it is possible to reliably perform installation and removal work with one touch without using a tool, and it is not necessary to support the weight of the branching device at the time of installing and removing the branching device. Work can be done easily with a small number of people.
[Brief description of the drawings]
FIG. 1A is a plan view showing a branching apparatus according to a first embodiment of the present invention.
(B) The side view which shows the branch apparatus of 1st Example.
FIG. 2A is a front view of a locking member in the branching device of the first embodiment.
(B) The right view of the securing member of the figure (a).
(C) The top view of the locking member of the figure (a).
(D) AA arrow sectional drawing of the locking member of the figure (a).
FIG. 3A is a partially sectional front view of a fixing member in the branching device of the first embodiment.
(B) The right view of the fixing member of the same figure (a).
(C) The top view of the fixing member of the figure (a).
(D) Sectional front view which shows the fixing hook of the fixing member of the figure (a).
(E) The cross-sectional right view which shows the fixing hook of the fixing member of the figure (a).
FIG. 4 is a side view showing a separation state of the branch device and the bus duct of the first embodiment.
FIG. 5 is a side view showing a state in which the branching device of the first embodiment and the engaging member insertion state of the bus duct are inserted.
FIG. 6 is a side view showing a mounting state of the branch device and the bus duct according to the first embodiment.
FIG. 7 is a partial cross-sectional front view showing a separation state of the fixing member and the bus duct in the branching device of the first embodiment.
FIG. 8 is a partially sectional front view showing a stage before fixing of the fixing member and the bus duct in the branching device of the first embodiment.
FIG. 9 is a partial cross-sectional front view showing a fixed state of the fixing member and the bus duct in the branching device of the first embodiment.
FIG. 10 is a side view showing a state in which a locking member is inserted into a bus duct vertically laid with the branching device according to the first embodiment;
11 is an enlarged side view of the locking member insertion portion of FIG. 10;
FIG. 12A is a plan view showing a branching device according to a second embodiment;
(B) The side view which shows the branch apparatus of 2nd Example.
FIG. 13A is a plan view showing a branching device according to a third embodiment;
(B) The side view which shows the branch apparatus of 3rd Example.
FIG. 14A is a side view showing a first modification of the locking member.
(B) The side view which shows the 2nd modification of a locking member.
(C) The side view which shows the 3rd modification of a locking member.
(D) The side view which shows the 4th modification of a locking member.
FIG. 15A is a partial cross-sectional front view showing a first modification of the fixing member.
(B) The right view which shows the 1st modification of a fixing member.
FIG. 16A is a partial cross-sectional front view showing a second modification of the fixing member.
(B) The right view which shows the 2nd modification of a fixing member.
FIG. 17 is a partial cross-sectional front view showing the fixed state of the connecting unit between the fixing member and the bus duct in the branching device of the first embodiment.
[Explanation of symbols]
1 Branching device
2 box
3 Locking member
31, 31 'base
32 Locking piece
32a Locking hook
32b Inclined side
32d support side
32e Guide side
4 Fixing member
41 Base
42 leg pieces
44 Fixed hook
442a Upper fixed piece
442b Lower fixed piece
45 Spring member
5 Terminal for branching
10 Bus duct
11 Bus duct unit
113b 2nd reinforcement part
12 Connection unit
127 Connection upper and lower plate
127a Locking hole

Claims

A bus duct locking hole having a box, a branching terminal protruding from the mounting surface of the box, and a locking member provided on the mounting surface or in the vicinity of the front end of the mounting surface A branching device that is inserted while the locking member is inserted and rotated around the locking member,
When the mounting surface is viewed in the vertical direction, at least a part of the locking member is provided at a position protruding from the outer periphery of the box ,
The locking member is formed with a locking hook portion that can be hooked in the locking hole on the front side thereof, and a support side that extends in a direction substantially perpendicular to the mounting surface is formed at a substantially leading end of the rear side. A branching device having a substantially arc-shaped guide side formed at a substantially rear end of the rear side .

A bus duct locking hole having a box, a branching terminal protruding from the mounting surface of the box, and a locking member provided on the mounting surface or in the vicinity of the front end of the mounting surface A branching device that is inserted while the locking member is inserted and rotated around the locking member,
The locking member has a support side extending substantially perpendicular to the mounting surface at a substantially leading end of the rear side, and a substantially arc-convex guide side formed at a substantially rear end of the rear side. A branching device characterized by.

The engagement in the locking member, branching unit of claim 2, wherein said locking hole to allow the hook locking hook portion is formed to project in front sides.

A leg piece that protrudes substantially in the vicinity of the rear end of the mounting surface, a spring member supported outside the leg piece, and a fixing that is biased inward by the spring member outside the leg piece The branching device according to claim 1 , wherein a part of the fixed hook protrudes from the leg piece in a substantially vertical plane with respect to the urging direction .

A box, a branching terminal provided protruding from the mounting surface of the box, a leg piece provided protruding substantially in the vicinity of the mounting surface, and a spring member supported outside the leg piece A fixed hook that is biased inwardly by the spring member on the outside of the leg piece, and a part of the fixed hook protrudes from the leg piece in a substantially vertical plane with respect to the biasing direction. Feature branching device.

A box, a branching terminal provided so as to protrude from the mounting surface of the box, and a locking member provided on the mounting surface or in the vicinity of the front end of the mounting surface. A branching device in which a support side extending in a direction substantially perpendicular to the mounting surface is formed at a substantially leading end of the rear side, and a substantially arc-shaped guide side is formed at a substantially rear end of the rear side, the branching device includes the locking member. A bus duct unit which is mounted while rotating around a center, wherein the bus duct unit is provided with a locking hole into which the locking member is inserted to be the center of rotation.

A box, a branching terminal provided so as to protrude from the mounting surface of the box, and a locking member provided on the mounting surface or in the vicinity of the front end of the mounting surface. A branching device in which a support side extending in a direction substantially perpendicular to the mounting surface is formed at a substantially leading end of the rear side, and a substantially arc-shaped guide side is formed at a substantially rear end of the rear side, the branching device includes the locking member. A connection unit which is attached while being rotated around a center, wherein the engagement member is inserted into the connection unit and an engagement hole serving as the rotation center is provided.