JP4320540B2 - Switch operating device and switch using the same - Google Patents

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JP4320540B2
JP4320540B2 JP2002312825A JP2002312825A JP4320540B2 JP 4320540 B2 JP4320540 B2 JP 4320540B2 JP 2002312825 A JP2002312825 A JP 2002312825A JP 2002312825 A JP2002312825 A JP 2002312825A JP 4320540 B2 JP4320540 B2 JP 4320540B2
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lever
drive
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switch
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JP2004146311A (en
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浩一 井上
政弘 太田
孝一 立川
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Yaskawa Electric Corp
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Description

【0001】
【発明の属する技術分野】
本発明は、手動もしくは電動の操作により可動接触子を固定接触子に嵌合接触させる開閉器の操作装置に関するものである。
【0002】
【従来の技術】
従来の開閉器の操作装置は、図7ないし図12に示すように構成されている(たとえば特許文献1)。
図7において、50は容器で、この容器50の器壁にブッシング51、52が取付けられている。一方のブッシング51には、固定電極53が設けられ、この固定電極53に固定電極53に固定接触子54が取付けられている。前記固定接触子54を囲んで外周にアーク駆動コイル55を巻装したアークランナ56が設けられている。他方のブッシング52には、可動電極57が設けられ、この可動電極57上を摺動しうるように可動接触子58が設けられている。59は駆動軸で、容器50に回動しうるように支持され、一端を可動接触子58に係合させた絶縁アーム60が取付けられている。61は電磁石で、コイル62、固定鉄心63、可動鉄心64より構成されている。65は可動鉄心64に取付けた連結棒で、リンクレバー66、67を介して駆動軸59に連結している。図8において、68は駆動軸59に取付けられた駆動レバーで、板面にピン69、70およびラッチローラ71が設けられている。72は容器50に回動しうるように取付けた操作軸で、一端を容器50の外部に突出させ、突出した部分にハンドル73を固定している。74は操作軸72に固定した操作レバーで、一端にピン75を取付けこのピン75に駆動ばね76の一端を取付けている。77は操作軸72に回動しうるように取付けたトリップレバーで、板面にピン78を取付け、このピン78に前記駆動ばね76の他端を取付けている。77a、77b、77cは前記トリップレバー77に設けた係合面である。79は容器50にピン80で回動しうるように取付けたラッチレバーで、一端に駆動レバー68に取付けたラッチローラ71に係合する係合部79aを設け、他端にローラ79bが設けられている。81は容器50に回動しうるようにピン82で取付けられたラッチレバーキャッチで、一端に前記ラッチレバー79に設けたローラ79bに係合する係合凹部81aを設けている。83は容器50に固定した釈放用の電磁石で、この電磁石83の可動鉄心側に作動レバー84を取付け、前記電磁石83を閉路したとき作動レバー84がラッチレバー79を反時計方向に回動するように構成している。
つぎに、開閉器を手動操作で閉路する場合について説明する。図8は、開閉器が開路状態のときの操作装置の構成図を示す。この状態からハンドル73を時計方向に回動すると、ハンドル73と一体に操作軸72が時計方向に回動する。前記操作軸72が時計方向に回動すると、この操作軸72と一体に操作レバー74が時計方向に回動する。前記操作レバー74を時計方向に回動すると、この操作レバー74とトリップレバー77との間に張架した駆動ばね76を伸張してばね力を蓄積して、図9に示すように駆動ばね76がデッドポイントに達する。さらに、ハンドル73を時計方向に回動すると、駆動ばね76のばね力によりトリップレバー77が反時計方向に回動し、図10に示すようにトリップレバー77の係合面77aが駆動レバー68のピン69に衝突して駆動レバー68と一体に駆動軸59を時計方向に回動する。前記駆動軸59が反時計万向に回動すると、この駆動軸59に取付けた図7に示す絶縁アーム60により可動接触子58を固定接触子54に接触嵌合して電路を閉路する。この時、ラッチレバーキャッチ81の係合凹部81aがラッチレバー79のローラ79bに係合する。したがって、フッチレバー79の他端の係合部79aが駆動レバー68のラッチローラ71と係合していなかったので、キャッチがかからない。
図10は開閉器が手動操作における閉路状態のときの操作装置の構成図である。つぎに開閉器を手動操作で開路する場合について説明する。開閉器が閉路している図10の状態からハンドル73を反時計方向に回動すると、前記ハンドル73と一体に操作軸72が反時計方向に回動し、この操作軸72に取付けた操作レバー74を反時計方向に回動する。操作レバー74が反時計方向に回動すると操作レバー74に一端を取付け、他端をトリップレバー77に取付けた駆動ばね76を伸張してばね力を蓄積する。図9に示す駆動ばね76がデッドポイントを超えると駆動ばね76のばね力によりトリップレバー77が時計方向に回動し、トリップレバー77が時計方向に回動すると、トリップレバー77の係合面77bが駆動レバー68のピン69に衝突して駆動レバー68を駆動軸59を中心に反時計方向に回動する。前記駆動レバー68が反時計方向に回動すると、トリップレバー77の係合面77cが駆動レバー68のピン70に衝突し、駆動レバー68を駆動軸59を中心にさらに反時計方向に回動して図7に示す駆動軸59に取付けられた絶縁アーム60により可動接触子58を固定接触子54から開離して電路を関路する。
つぎに、開閉器を電磁操作で閉路操作する場合について説明する。図11は開閉器の可動接触子58が固定接触子54から関離した状態を示す開閉器の操作装置の構成図である。この開閉器が開路している状態を示す図8の状態から電磁石61のコイル62に通電すると、電磁石61の可動鉄心64が吸引され、可動鉄心64に連結した連結棒65を介してリンクレバー66、67を作動してリンクレバー67に連結した駆動軸59を時計方向に回動する。前記駆動軸59が時計方向に回動すると、駆動軸59に取付けた絶縁アーム60により可動接触子58を固定接触子54に接触嵌合させて電路を閉路する。前記駆動軸59が回動すると、駆動軸59に取付けた駆動レバー68が回動する。前記駆動レバー68が回動すると、この駆動レバー68の板面に取付けたピン69が係合面77bを介してトリップレバー77を反時計方向に回動して駆動ばね76にばね力を蓄積するとともに、前記駆動レバー68の板面に仮付けたラッチローラ71がラッチレバー79の係合凹部79aに係合して駆動レバー68が係止されて投入が完了する。
図12は開閉器が電磁操作で閉路した状態を示す開閉器の操作装置の構成図である。前記開閉器が電磁操作で閉路した状態から開閉器を電磁操作により開路操作について説明する。開閉器が閉路している図12の状態から釈放用電磁石83を励磁すると、操作レバー84を矢印B方向に移動してラッチレバー79をピン80を中心にして反時計方向に回動して駆動レバー68に設けたラッチローラ71をトリップレバー77の係合部79aから釈放する。
前記駆動レバー68がラッチローラ71から釈放されると、駆動ばね76のばね力によりトリップレバー77が反時計方向に回動し、このトリップレバー77の係合面77bに衝突する駆動レバー68に設けたピン69を介して駆動レバー68を駆動軸59を中心に反時計方向に回動して駆動軸59に取付けた絶縁アーム60により可動接触子58を固定接触子54から開離して電路を開路する(例えば、特許文献1参照)。
【0003】
【特許文献1】
特開平11−329167号公報(図1)
【0004】
【発明が解決しようとする課題】
ところが、従来の開閉器の操作装置は、手動操作の操作機構と電磁操作の操作機構とを同じ構成部品を用いて動作させている。このため、開閉器の操作装置を電磁操作で閉路したとき、この閉路状態を投入用電磁石が無励磁の場合でも保持できるようにキャッチ機構を用いている。しかしながら、手動操作のときこのキャッチ機構が働くと、可動電極の開路動作が不可能になる。このため、この操作機構にレバーを取付けて、手動操作で操作したときキャッチ機構が作用しないようにしている。このため、部品点数が多くなり、操作装置が複雑となり、またコンパクト化に対して満足できない点があった。
そこで、本発明は、部品点数を少なくして、また駆動ばね蓄勢を圧縮ばね機構にして、一本ハンドルによる手動操作および電磁操作で確実に開閉操作でき、コンパクト化を図った開閉器の操作装置を提供することを目的とする。
【0005】
【課題を解決するための手段】
上記問題を解決するため、本発明は、開閉器容器1と、前記容器1に収納した固定接触子5および可動接触子9と、前記容器1に支持され前記可動接触子9を移動させる絶縁アーム11を取付けた駆動軸10と、前記容器1に支持されリンクレバー19を介して前記駆動軸10を回動する電磁石12と、一端が前記容器1より突出し、その突出した部分に一本ハンドル24を取付けて前記容器1に回動しうるように支持された操作軸23と、前記操作軸23に回動しうるように取付けられるとともに、二股状をした係合面28a,28bを有するトリップレバー28と、前記操作軸23に固定した操作レバー25と、前記操作レバー25の反操作軸側に設けたピン26と、前記トリップレバー28の、前記ピン26と前記操作軸23の間の位置に設けたピン29と、前記操作レバー25の前記ピン26に一端を取り付け、前記トリップレバー28の前記ピン29に他端を取り付け、前記操作レバー25と前記トリップレバー28との間に圧架した駆動ばね27と、
への字状をし、前記駆動軸10に取付けられ、かつ、板面の一端にピン21a,21bを、前記トリップレバー28の2つの係合面28a,28b間に位置するようにして、取付けるとともに、他端にラッチローラ22を取付け、前記トリップレバー28によって回動される駆動レバー20と、前記容器1に回動しうるように取付けられ、一端に前記駆動レバー20の前記ラッチローラ22に係合する係合凹部32を有し、他端に突出片33を設けたラッチレバー30と、前記駆動レバー20の前記ラッチローラ22が前記ラッチレバー30の係合凹部32と係合する位置により、前記可動接触子9の接触深さを調整するトリップレバー28のストッパー37と、前記駆動レバー20のピン21に係合する係合面を有し前記操作軸に固定した操作レバー25を係止する、容器1に取付けたストッパー35とを有し、前記可動接触子9が前記固定電極4から離れて開路した手動操作での開路状態においては、前記トリップレバー28のピン29が、前記ピン26と前記操作軸23を結ぶ線よりも、前記ピン26側からみて左側に位置し、前記駆動ばね27のばね力によって、前記トリップレバー28の係合面28aが、前記駆動レバー20のピン21aを押圧して、前記駆動レバー20を反時計方向に回動させようとし、前記可動接触子9が前記固定電極4と接触して閉路した手動操作での閉路状態においては、前記トリップレバー28のピン29が、前記ピン26と前記操作軸23を結ぶ線よりも、前記ピン26側からみて右側に位置し、前記駆動ばね27のばね力によって、前記トリップレバー28の係合面28bが、前記駆動ばね27のばね力によって、前記駆動レバー20のピン21bを押圧して、前記駆動レバー20を時計方向に回動させようとすることを特徴とするものである。
また、開閉器容器1内に、固定接触子5と可動接触子9を収納し、前記可動接触子9の可動を操作装置で行なう開閉器において、前記操作装置を、請求項1に記載の開閉器の操作装置で構成したことを特徴とするものである。
【0006】
【発明の実施の形態】
以下、本発明の実施例を図に基いて説明する。
図1は本発明の実施例を示す開閉器の側断面図、図2は本発明の実施例を示す開閉器の開路状態の操作装置の構成図、図3は本発明の開閉器のデッドポイント位置の操作装置の構成図、図4は本発明の実施例を示す開閉器を手動操作による閉路状態の操作装置構成図、図5は本発明の実施例を示す開閉器の開路状態の操作装置の構成図、図6は本発明の実施例を示す開閉器を電磁操作による閉路状態の操作装置の構成図である。
図において、1は容器で、この容器1の器壁にブッシング2、3が取付けられている。一方のブッシング2には、固定電極4が設けられ、この固定電極4に固定接触子5が取付けられている。前記固定接触子5を囲んで外周にアーク駆動コイル6を巻装したアークランナ7が設けられている。他方のブッシング3には、可動電極8が設けられ、この可動電極8上を摺動しうる可動接触子9が設けられている。10は駆動軸で、容器1に回動しうるように支持されている。11は絶縁アームで、一端を前記駆動軸10に取付け、他端を可動接触子9に係合させ、可動接触子9を固定接触子5に接触、開離するように構成してある。12は電磁石で、コイル13、固定鉄心14、可動鉄心15より構成されている。16は可動鉄心15に取付けた連結棒で、可動接触子9を可動できるようにしている。18はリンクレバーで、一端を前記連結棒16に連結し、他端をリンクレバー19で介して駆動軸10に連結している。20は駆動軸10に取付けられた駆動レバーで、板面にピン21a,21bおよびラッチローラ22取付けてある。23は容器1に回動しうるように取付けた操作軸で、一端を容器1の外部に突出させ、突出した部分に一本ハンドル24を固定している。25は操作軸23に固定した操作レバーで、一端にピン26を取付け、このピン26に駆動ばね27の一端を取付けている。25aは操作レバー25に設けた係合面、28は操作軸23に回動しうるように取付けたトリップレバーで、板面にピン29を取付け、このピン29に前記駆動ばね27の他端を取付けている。28aはトリップレバー28に設けた係合面、30は容器1にピン31により回動しうるように取付けたラッチレバーで、一端に前記駆動レバー20のラッチローラ22に係合する係合凹部32を設け、端に突出片33が設けられている。34は一端を容器1に固定し、他端を前記ラッチレバー30に張架したばね、35は容器1に取付けたトリップレバー28のストッパー36は容器1に取付けた操作レバー25のストッパー、3は釈放用電磁石で、容器1に取付け、フッチレバー30の突出片33を駆動するように設けられている。
つぎに、開閉器を手動操作で閉路する場合について説明する。図2は開閉器が開路している状態の操作装置の構成図である。この状態から一本ハンドル24を時計方向に回動すると、ハンドル24と一体に操作レバー25が時計方向に回動し、操作レバー25に一端を取付けた駆動ばね27を圧縮する。前記駆動ばね27がデッドポイントに達すると図3に示す状態となる。前記ハンドル24をさらに時計方向に回動すると、駆動ばね27のばね力によりトリップレバー28を反時計方向に回動する。前記トリップレバー28が反時計方向に回動すると、トリップレバー28の係合面28aが駆動レバー20のピン21に衝突する。前記係合面28aがピン21を介して駆動レバー20を時計方向に回動する。前記駆動レバー20が時計方向に回動すると、この駆動レバー20と一体に駆動軸10を時計方向に回動して、この駆動軸10に取付けた絶縁アーム11を介して可動接触子9を固定接触子5に接触させて電路を閉路する。この場合、トリップレバー28がストッパー3に係止して、駆動レバー20のラッチローラ22はラッチレバー30の係合凹部32に係合しない。
図4は開閉器の手動操作による閉路状態の操作装置の構成図である。つぎに、開閉器を手動操作で開路する場合について説明する。開閉器が閉路している図4の状態からハンドル24を反時計方向に回動すると、ハンドル24と一体に操作レバー25が反時計方向に回動し操作レバー25に一端を取付けた駆動ばね27を圧縮する。前記駆動ばね27がデッドポイントに達すると図3に示す状態となる。前記ハンドル24をさらに反時計方向に回動すると、駆動ばね27のばね力によりトリップレバー28が時計方向に回動し、トリップレバー28の係合面28が駆動レバー20のピン21に衝接し、トリップレバー28の係合面28がピン21を介して駆動レバー20を反時計方向に回動する。前記駆動レバー20が反時計方向に回動すると、駆動レバー20と一体に駆動軸10が時計方向に回動して、この駆動軸10に取付けた絶縁アーム11を介して可動接触子9を固定接触子5から開離して電路を開路する。
図5は開閉器が開路した状態の操作装置の構成図である。つぎに、開閉器を電磁操作で閉路する場合について説明する。図5に示す開閉器が開路している状態から図1に示す電磁石12を励磁すると、可動鉄心15が固定鉄心14に吸引され、リンクレバー18、19を介して駆動軸10を時計方向に回動する。前記駆動軸10が時計方向に回動すると、この駆動軸10に取付けた絶縁アーム11を介して可動接触子9を固定接触子6に接触、嵌合するとともに、駆動軸10に取付けた駆動レバー20のラッチローラ22がラッチレバー30の係合凹部32に係合して、開閉器の閉路状態を保持する。
図6は開閉器が閉路している状態を示す操作装置の構成図である。つぎに、図6に示す開閉器が閉路している状態から開閉器の開路操作について説明する。釈放用の電磁石3を励磁すると、電磁石3の可動側が突出し、ッチレバー30の突出片33を押圧してピン31を支点にラッチレバー30を反時計方向に回動する。前記ラッチレバー30が反時計方向に回動するとラッチレバー30の係合凹部32が駆動レバー20のラッチローラ22から外れ、駆動レバー20が駆動ばね27のばね力によりトリップレバー28の係合面28aが駆動レバー20のピン21を介して駆動レバー20を反時計方向に回動する。前記駆動レバー20が反時計方向に回動すると、この駆動レバー20に取付けた駆動軸10を介して可動接触子9を固定接触子5から開離して電路を開路する。
図2は開閉器が開路状態の操作装置の構成図である。このように、手動操作の操作機構と電磁操作の機構とを同じ構成部品を用いても、電磁操作による閉路操作による閉路状態を投入用電磁石が無励磁の場合でもキャッチ機構を用いることなく保持できるようにしたので部品点数は少なくなり、また駆動ばね機構に圧縮ばねを用いたことにより、手動操作および電磁操作で確実に開閉操作ができ、従来の操作機構よりコンパクト化が図れるようになる。
【0007】
【発明の効果】
以上述べたように、本発明によれば、開閉器の主接触子を駆動制御する開閉器の操作装置に関し、特に一本ハンドルによる手動投入操作時に投入状態でラッチを取り外し、手動操作および電磁操作で確実に開閉でき、コンパクト化を図ることが可能な開閉器の操作装置と、これを用いた開閉器を提供することができる。
【図面の簡単な説明】
【図1】本発明の実施例を示す開閉器の側断面図である。
【図2】本発明の実施例を示す開閉器の開路状態の操作装置の構成図である。
【図3】本発明の実施例を示す開閉器の操作装置のデッドポイント位置構成図である。
【図4】本発明の実施例を示す開閉器の手動操作による閉路状態の操作状態の操作装置の構成図である。
【図5】本発明の実施例を示す開閉器の手動操作による開路状態の操作装置の構成図である。
【図6】本発明の実施例を示す開閉器を電磁操作による閉路状態の操作装置の構成図である。
【図7】従来の開閉器の側断面図である。
【図8】従来の開閉器の開路状態の操作装置の構成図である。
【図9】従来の開閉器の操作装置のデッドポイント位置の構成図である。
【図10】従来の開閉器の操作装置における手動操作による閉路状態を示す操作装置の構成図である。
【図11】従来の開閉器の操作装置における手動操作による開路状態を示す操作装置の構成図である。
【図12】従来の開閉器の操作装置における電磁操作による閉路状態を示す操作装置の構成図である。
【符号の説明】
1、50 容器
2、3、51、52、53 ブッシング
4 固定電極
5、54 固定接触子
6、55 アーク駆動コイル
7、56 アークランナ
8、57 可動電極
9、58 可動接触子
10、59 駆動軸
11、60 絶縁アーム
12、61、83 電磁石
13、62 コイル
14、63 固定鉄心
15、64 可動鉄心
15a ねじ溝
16、65 連結棒
18、19、66、67 リンクレバー
20、68 駆動レバー
21a、21b、26、29、31、69、70、75、78、80、82 ピン
22、71 ラッチローラ
23、72 操作軸
24 一本ハンドル
25、74 操作レバー
25a 係合面
27、76 駆動ばね
28、77、77a、77b、77c トリップレバー
28a、28b 係合面
30、79 ラッチレバー
32 係合凹部
33 突出片
34 ばね
35、36、37 ストッパー
38 電磁石
73 ハンドル
81 ラッチレバーキャッチ
81a 係合凹面
84 作動レバー
[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an operating device for a switch for fitting a movable contact to a fixed contact by manual or electric operation.
[0002]
[Prior art]
Conventional switch operating devices are configured as shown in FIGS. 7 to 12 (for example, Patent Document 1).
In FIG. 7, reference numeral 50 denotes a container, and bushings 51 and 52 are attached to the vessel wall of the container 50. One bushing 51 is provided with a fixed electrode 53, and a fixed contact 54 is attached to the fixed electrode 53. An arc runner 56 surrounding the stationary contact 54 and having an arc drive coil 55 wound around the outer periphery thereof is provided. The other bushing 52 is provided with a movable electrode 57, and a movable contact 58 is provided so as to be able to slide on the movable electrode 57. A drive shaft 59 is supported by the container 50 so as to be rotatable, and an insulating arm 60 having one end engaged with the movable contact 58 is attached. Reference numeral 61 denotes an electromagnet, which includes a coil 62, a fixed iron core 63, and a movable iron core 64. Reference numeral 65 denotes a connecting rod attached to the movable iron core 64 and is connected to the drive shaft 59 via link levers 66 and 67. In FIG. 8, reference numeral 68 denotes a drive lever attached to the drive shaft 59, and pins 69, 70 and a latch roller 71 are provided on the plate surface. Reference numeral 72 denotes an operation shaft attached to the container 50 so as to be rotatable. One end of the operation shaft projects outside the container 50, and a handle 73 is fixed to the projecting portion. Reference numeral 74 denotes an operation lever fixed to the operation shaft 72, and a pin 75 is attached to one end, and one end of the drive spring 76 is attached to the pin 75. A trip lever 77 is attached to the operation shaft 72 so as to be rotatable. A pin 78 is attached to the plate surface, and the other end of the drive spring 76 is attached to the pin 78. Reference numerals 77 a, 77 b, and 77 c are engagement surfaces provided on the trip lever 77. Reference numeral 79 denotes a latch lever attached to the container 50 so as to be rotatable by a pin 80. An engaging portion 79a for engaging with a latch roller 71 attached to the drive lever 68 is provided at one end, and a roller 79b is provided at the other end. ing. A latch lever catch 81 is attached by a pin 82 so as to be able to rotate on the container 50, and has an engagement recess 81a that engages with a roller 79b provided on the latch lever 79 at one end. Reference numeral 83 denotes a release electromagnet fixed to the container 50. An operating lever 84 is attached to the movable core side of the electromagnet 83 so that the operating lever 84 rotates the latch lever 79 counterclockwise when the electromagnet 83 is closed. It is configured.
Next, a case where the switch is closed manually will be described. FIG. 8 shows a block diagram of the operating device when the switch is in the open state. When the handle 73 is rotated clockwise from this state, the operation shaft 72 is rotated clockwise together with the handle 73. When the operation shaft 72 is rotated in the clockwise direction, the operation lever 74 is rotated in the clockwise direction integrally with the operation shaft 72. When the operation lever 74 is rotated in the clockwise direction, the drive spring 76 stretched between the operation lever 74 and the trip lever 77 is extended to accumulate the spring force, and as shown in FIG. Reaches the dead point. Further, when the handle 73 is rotated clockwise, the trip lever 77 is rotated counterclockwise by the spring force of the drive spring 76, and the engagement surface 77 a of the trip lever 77 is connected to the drive lever 68 as shown in FIG. 10. Colliding with the pin 69, the drive shaft 59 is rotated clockwise together with the drive lever 68. When the drive shaft 59 rotates counterclockwise, the movable contact 58 is brought into contact with the fixed contact 54 by the insulating arm 60 shown in FIG. 7 attached to the drive shaft 59 to close the electric circuit. At this time, the engaging recess 81 a of the latch lever catch 81 engages with the roller 79 b of the latch lever 79. Therefore, since the engaging portion 79a at the other end of the foot lever 79 is not engaged with the latch roller 71 of the drive lever 68, it is not caught.
FIG. 10 is a configuration diagram of the operating device when the switch is in a closed state in manual operation. Next, the case where the switch is opened manually will be described. When the handle 73 is rotated counterclockwise from the state of FIG. 10 in which the switch is closed, the operation shaft 72 rotates counterclockwise integrally with the handle 73, and the operation lever attached to the operation shaft 72 is operated. 74 is rotated counterclockwise. When the operation lever 74 rotates counterclockwise, one end is attached to the operation lever 74 and the drive spring 76 having the other end attached to the trip lever 77 is extended to accumulate the spring force. When the drive spring 76 shown in FIG. 9 exceeds the dead point, the trip lever 77 is rotated clockwise by the spring force of the drive spring 76, and when the trip lever 77 is rotated clockwise, the engagement surface 77b of the trip lever 77 is rotated. Collides with the pin 69 of the drive lever 68 and rotates the drive lever 68 counterclockwise about the drive shaft 59. When the drive lever 68 is rotated counterclockwise, the engagement surface 77c of the trip lever 77 collides with the pin 70 of the drive lever 68, and the drive lever 68 is further rotated counterclockwise around the drive shaft 59. Then, the movable contact 58 is separated from the fixed contact 54 by the insulating arm 60 attached to the drive shaft 59 shown in FIG.
Next, the case where the switch is closed by electromagnetic operation will be described. FIG. 11 is a configuration diagram of the switch operating device showing a state in which the movable contact 58 of the switch is separated from the fixed contact 54. When the coil 62 of the electromagnet 61 is energized from the state shown in FIG. 8 showing the state where the switch is open, the movable iron core 64 of the electromagnet 61 is attracted and connected via the connecting rod 65 connected to the movable iron core 64. , 67 is operated to rotate the drive shaft 59 connected to the link lever 67 clockwise. When the drive shaft 59 rotates clockwise, the movable contact 58 is brought into contact with the fixed contact 54 by the insulating arm 60 attached to the drive shaft 59 to close the electric circuit. When the drive shaft 59 rotates, the drive lever 68 attached to the drive shaft 59 rotates. When the drive lever 68 rotates, the pin 69 attached to the plate surface of the drive lever 68 rotates the trip lever 77 counterclockwise via the engaging surface 77b, and the spring force is accumulated in the drive spring 76. At the same time, the latch roller 71 temporarily attached to the plate surface of the drive lever 68 is engaged with the engagement recess 79a of the latch lever 79, and the drive lever 68 is locked to complete the insertion.
FIG. 12 is a configuration diagram of a switch operating device showing a state in which the switch is closed by electromagnetic operation. The opening operation of the switch by electromagnetic operation will be described from the state in which the switch is closed by electromagnetic operation. When the release electromagnet 83 is excited from the state of FIG. 12 in which the switch is closed, the operation lever 84 is moved in the direction of arrow B, and the latch lever 79 is rotated counterclockwise around the pin 80 and driven. The latch roller 71 provided on the lever 68 is released from the engaging portion 79 a of the trip lever 77.
When the drive lever 68 is released from the latch roller 71, the trip lever 77 rotates counterclockwise by the spring force of the drive spring 76, and is provided on the drive lever 68 that collides with the engagement surface 77b of the trip lever 77. The drive lever 68 is rotated counterclockwise about the drive shaft 59 through the pin 69 and the movable contact 58 is separated from the fixed contact 54 by the insulating arm 60 attached to the drive shaft 59 to open the electric circuit. (For example, refer to Patent Document 1).
[0003]
[Patent Document 1]
JP-A-11-329167 (FIG. 1)
[0004]
[Problems to be solved by the invention]
However, in a conventional switch operating device, a manual operation mechanism and an electromagnetic operation mechanism are operated using the same components. Therefore, when the switch operating device is closed by electromagnetic operation, a catch mechanism is used so that this closed state can be maintained even when the closing electromagnet is not excited. However, if this catch mechanism is activated during manual operation, the movable electrode cannot be opened. For this reason, a lever is attached to this operation mechanism so that the catch mechanism does not act when operated by manual operation. For this reason, the number of parts is increased, the operation device is complicated, and there is a point that the reduction in size is not satisfactory.
Therefore, the present invention reduces the number of components and uses a compression spring mechanism as the drive spring energy storage, which can be reliably opened and closed by manual operation and electromagnetic operation with a single handle, and the operation of the switch that has been made compact An object is to provide an apparatus.
[0005]
[Means for Solving the Problems]
In order to solve the above problem, the present invention provides a switch container 1, a fixed contact 5 and a movable contact 9 housed in the container 1, and an insulating arm that is supported by the container 1 and moves the movable contact 9. 11 and the drive shaft 10 fitted with a magnet 12 to rotate the drive shaft 10 via the link lever 19 is supported by the vessel 1, one end protrudes from the container 1, one handle 24 to the protruding portion And a trip lever having a bifurcated engagement surface 28a, 28b, and an operation shaft 23 supported so as to be able to turn on the container 1 and attached to the operation shaft 23. 28, an operation lever 25 fixed to the operation shaft 23, the pin 26 provided on the counter-operating shaft side of the operating lever 25, the trip lever 28, positions between the pin 26 and the operating shaft 23 A pin 29 provided on the the pin 26 attached to one end of the operating lever 25, the on pin 29 attached to the other end of the trip lever 28, and圧架between the operating lever 25 and the trip lever 28 A drive spring 27;
The pin 21a, 21b is attached to one end of the plate surface so as to be positioned between the two engagement surfaces 28a, 28b of the trip lever 28. together, mounting the latch roller 22 at the other end, a drive lever 20 which is thus rotated to the trip lever 28, the latch roller 22 of the mounted so as to be able to rotate the container 1, the drive lever 20 at one end A latch lever 30 having an engaging recess 32 that engages with the other end, and a protruding piece 33 at the other end, and a position where the latch roller 22 of the drive lever 20 engages with the engaging recess 32 of the latch lever 30. Accordingly, the stopper 37 of the trip lever 28 for adjusting the nip depth of the movable contactor 9, fixed to the operation shaft has an engagement surface for engaging the pin 21 of the drive lever 20 Locking the work lever 25, and a stopper 35 attached to the container 1, in the open state of the manual operation in which the movable contactor 9 is opened away from the fixed electrode 4, the pin of the trip lever 28 29 is located on the left side of the line connecting the pin 26 and the operation shaft 23 as viewed from the pin 26 side, and the engagement surface 28a of the trip lever 28 is driven by the spring force of the drive spring 27. In a closed state in a manual operation in which the pin 21a of the lever 20 is pressed to rotate the drive lever 20 counterclockwise, and the movable contactor 9 contacts the fixed electrode 4 and is closed. A pin 29 of the trip lever 28 is located on the right side of the line connecting the pin 26 and the operation shaft 23 as viewed from the pin 26 side, and the spring force of the drive spring 27 Engaging surface 28b of the lip lever 28, by the spring force of the drive spring 27, presses the pin 21b of the drive lever 20, characterized in that it tries to rotate the driving lever 20 in a clockwise direction Is.
2. The switch according to claim 1, wherein a stationary contact 5 and a movable contact 9 are accommodated in the switch container 1, and the movable contact 9 is moved by the operation device. It is characterized by comprising a device operating device.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described below with reference to the drawings.
1 is a side sectional view of a switch according to an embodiment of the present invention, FIG. 2 is a configuration diagram of an operating device in an open state of the switch according to an embodiment of the present invention, and FIG. 3 is a dead point of the switch according to the present invention. FIG. 4 is a configuration diagram of a position operation device, FIG. 4 is a configuration diagram of an operation device in a closed state by manually operating a switch according to an embodiment of the present invention, and FIG. FIG. 6 is a block diagram of an operating device in which the switch according to the embodiment of the present invention is closed by electromagnetic operation.
In the figure, reference numeral 1 denotes a container, and bushings 2 and 3 are attached to the vessel wall of the container 1. One bushing 2 is provided with a fixed electrode 4, and a fixed contact 5 is attached to the fixed electrode 4. An arc runner 7 surrounding the fixed contact 5 and having an arc drive coil 6 wound around the outer periphery thereof is provided. The other bushing 3 is provided with a movable electrode 8, and a movable contact 9 that can slide on the movable electrode 8 is provided. A drive shaft 10 is supported by the container 1 so as to be able to rotate. 11 is an insulating arm, attached at one end to the drive shaft 10 to engage the other end to the movable contact 9, the contact of the movable contact 9 to the stationary contact 5, is arranged to separable. An electromagnet 12 includes a coil 13, a fixed iron core 14, and a movable iron core 15. Reference numeral 16 denotes a connecting rod attached to the movable iron core 15 so that the movable contact 9 can be moved. A link lever 18 has one end connected to the connecting rod 16 and the other end connected to the drive shaft 10 via a link lever 19. Reference numeral 20 denotes a drive lever attached to the drive shaft 10, and pins 21a and 21b and a latch roller 22 are attached to the plate surface. An operation shaft 23 is attached to the container 1 so as to be rotatable. One end of the operation shaft projects outside the container 1, and a single handle 24 is fixed to the projecting portion. Reference numeral 25 denotes an operation lever fixed to the operation shaft 23, and a pin 26 is attached to one end, and one end of a drive spring 27 is attached to the pin 26. Reference numeral 25a denotes an engagement surface provided on the operation lever 25, and 28 denotes a trip lever attached to the operation shaft 23 so as to be rotatable. A pin 29 is attached to the plate surface, and the other end of the drive spring 27 is attached to the pin 29. It is installed. 28a is an engagement surface provided on the trip lever 28, 30 is a latch lever attached to the container 1 so that it can be rotated by a pin 31, and an engagement recess 32 which engages with the latch roller 22 of the drive lever 20 at one end. the provided, protruding piece 33 is provided at the other end. Reference numeral 34 denotes a spring having one end fixed to the container 1 and the other end stretched around the latch lever 30, 35 a stopper of the trip lever 28 attached to the container 1, and 36 a stopper of the operation lever 25 attached to the container 1, 3 8 is an electromagnet for release, attached to the container 1, is provided to drive the protruding piece 33 of Futchireba 30.
Next, a case where the switch is closed manually will be described. FIG. 2 is a configuration diagram of the operating device in a state where the switch is open. When one handle 24 is rotated clockwise from this state, the operation lever 25 is rotated clockwise together with the handle 24, and the drive spring 27 having one end attached to the operation lever 25 is compressed. When the drive spring 27 reaches the dead point, the state shown in FIG. When the handle 24 is further rotated clockwise, the trip lever 28 is rotated counterclockwise by the spring force of the drive spring 27. When the trip lever 28 rotates counterclockwise, the engagement surface 28 a of the trip lever 28 collides with the pin 21 a of the drive lever 20. It said mating surface 28a to rotate the driving lever 20 in a clockwise direction through the pin 21 a. When the drive lever 20 is rotated clockwise, the drive shaft 10 is rotated clockwise together with the drive lever 20, and the movable contact 9 is fixed via the insulating arm 11 attached to the drive shaft 10. The electric circuit is closed by contacting the contact 5. In this case, the trip lever 28 is engaged with the stopper 3 7, the latch roller 22 of the drive lever 20 is not engaged with the engaging recess 32 of the latch lever 30.
FIG. 4 is a configuration diagram of the operating device in a closed state by manual operation of the switch. Next, a case where the switch is opened manually is described. When the handle 24 is rotated counterclockwise from the state of FIG. 4 in which the switch is closed, the operating lever 25 rotates counterclockwise integrally with the handle 24, and a drive spring 27 having one end attached to the operating lever 25. Compress. When the drive spring 27 reaches the dead point, the state shown in FIG. When the handle 24 is further rotated counterclockwise, the trip lever 28 is rotated clockwise by the spring force of the drive spring 27, and the engagement surface 28 b of the trip lever 28 strikes the pin 21 b of the drive lever 20. contact engagement surface 28 b of the trip lever 28 rotates the driving lever 20 in a counterclockwise direction via the pin 21 b. When the driving lever 20 is rotated counterclockwise, the drive lever 20 and drive shaft 10 together are rotated counterclockwise, the movable contactor 9 through the insulating arm 11 attached to the drive shaft 10 The electric circuit is opened by separating from the fixed contact 5.
FIG. 5 is a configuration diagram of the operating device in a state where the switch is opened. Next, a case where the switch is closed by electromagnetic operation will be described. When the electromagnet 12 shown in FIG. 1 is excited from the state where the switch shown in FIG. 5 is open, the movable iron core 15 is attracted to the fixed iron core 14 and the drive shaft 10 is rotated clockwise via the link levers 18 and 19. Move. When the drive shaft 10 rotates in the clockwise direction, the movable contact 9 is brought into contact with and fitted to the fixed contact 6 via the insulating arm 11 attached to the drive shaft 10 and the drive lever attached to the drive shaft 10. The 20 latch rollers 22 are engaged with the engagement recesses 32 of the latch lever 30 to maintain the closed state of the switch.
FIG. 6 is a configuration diagram of the operating device showing a state in which the switch is closed. Next, the opening operation of the switch will be described from the state where the switch shown in FIG. 6 is closed. When exciting the electromagnet 3 8 for release, the movable side of the electromagnet 3 8 protrude, to rotate the latch lever 30 counterclockwise pin 31 presses the projecting piece 33 of La Tchireba 30 as a fulcrum. When the latch lever 30 rotates counterclockwise, the engagement recess 32 of the latch lever 30 is disengaged from the latch roller 22 of the drive lever 20, and the drive lever 20 is engaged with the engagement surface 28 a of the trip lever 28 by the spring force of the drive spring 27. Rotates the drive lever 20 counterclockwise via the pin 21 of the drive lever 20. When the drive lever 20 rotates counterclockwise, the movable contact 9 is separated from the fixed contact 5 via the drive shaft 10 attached to the drive lever 20 to open the electric circuit.
FIG. 2 is a block diagram of the operating device with the switch open. As described above, even if the same operation parts are used for the manual operation mechanism and the electromagnetic operation mechanism, the closed state by the electromagnetic operation can be maintained without using the catch mechanism even when the closing electromagnet is not excited. As a result, the number of parts is reduced, and by using a compression spring for the drive spring mechanism, the opening / closing operation can be reliably performed by a manual operation and an electromagnetic operation, and a more compact operation than the conventional operation mechanism can be achieved.
[0007]
【The invention's effect】
As described above, according to the present invention, it relates to a switch operating device that drives and controls a main contact of a switch, and in particular, a manual operation and an electromagnetic operation are performed by removing a latch in a closing state during a manual closing operation by a single handle. Therefore, it is possible to provide a switch operating device that can be reliably opened and closed and can be made compact, and a switch using the switch operating device.
[Brief description of the drawings]
FIG. 1 is a side sectional view of a switch showing an embodiment of the present invention.
FIG. 2 is a configuration diagram of an operating device in an open circuit state of a switch showing an embodiment of the present invention.
FIG. 3 is a configuration diagram of a dead point position of the switch operating device according to the embodiment of the present invention.
FIG. 4 is a configuration diagram of an operating device in an operating state in a closed state by manual operation of a switch according to an embodiment of the present invention.
FIG. 5 is a configuration diagram of an operating device in an open state by manual operation of a switch according to an embodiment of the present invention.
FIG. 6 is a configuration diagram of an operating device in which a switch according to an embodiment of the present invention is closed by electromagnetic operation.
FIG. 7 is a side sectional view of a conventional switch.
FIG. 8 is a configuration diagram of a conventional operating device in an open state of a switch.
FIG. 9 is a configuration diagram of a dead point position of a conventional switch operating device.
FIG. 10 is a configuration diagram of an operating device showing a closed state by a manual operation in a conventional switch operating device.
FIG. 11 is a configuration diagram of an operating device showing an open circuit state by a manual operation in a conventional switch operating device.
FIG. 12 is a configuration diagram of an operating device showing a closed state by electromagnetic operation in a conventional switch operating device.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1, 50 Container 2, 3, 51, 52, 53 Bushing 4 Fixed electrode 5, 54 Fixed contact 6, 55 Arc drive coil 7, 56 Arcrunner 8, 57 Movable electrode 9, 58 Movable contact 10, 59 Drive shaft 11 , 60 Insulating arms 12, 61, 83 Electromagnets 13, 62 Coils 14, 63 Fixed iron cores 15, 64 Movable iron cores 15a Thread grooves 16, 65 Connecting rods 18, 19, 66, 67 Link levers 20, 68 Drive levers 21a , 21b 26 , 29 , 31 , 69 , 70 , 75 , 78 , 80 , 82 Pin 22, 71 Latch roller 23, 72 Operation shaft 24 Single handle 25, 74 Operation lever 25a Engagement surface 27, 76 Drive springs 28, 77 , 77a, 77b, 77c Trip lever
28a, 28b Engagement surface 30, 79 Latch lever 32 Engagement recess 33 Projection piece 34 Spring 35, 36, 37 Stopper
38 Electromagnet 73 Handle 81 Latch lever catch 81a Engaging concave surface 84 Actuating lever

Claims (2)

開閉器容器1と、
前記容器1に収納した固定接触子5および可動接触子9と、
前記容器1に支持され前記可動接触子9を移動させる絶縁アーム11を取付けた駆動軸10と、
前記容器1に支持されリンクレバー19を介して前記駆動軸10を回動する電磁石12と、
一端が前記容器1より突出し、その突出した部分に一本ハンドル24を取付けて前記容器1に回動しうるように支持された操作軸23と、
前記操作軸23に回動しうるように取付けられるとともに、二股状をした係合面28a,28bを有するトリップレバー28と、
前記操作軸23に固定した操作レバー25と、
前記操作レバー25の反操作軸側に設けたピン26と、
前記トリップレバー28の、前記ピン26と前記操作軸23の間の位置に設けたピン29と、
前記操作レバー25の前記ピン26に一端を取り付け、前記トリップレバー28の前記ピン29に他端を取り付け、前記操作レバー25と前記トリップレバー28との間に圧架した駆動ばね27と、
への字状をし、前記駆動軸10に取付けられ、かつ、板面の一端にピン21a,21bを、前記トリップレバー28の2つの係合面28a,28b間に位置するようにして、取付けるとともに、他端にラッチローラ22を取付け、前記トリップレバー28によって回動される駆動レバー20と、
前記容器1に回動しうるように取付けられ、一端に前記駆動レバー20の前記ラッチローラ22に係合する係合凹部32を有し、他端に突出片33を設けたラッチレバー30と、
前記駆動レバー20の前記ラッチローラ22が前記ラッチレバー30の係合凹部32と係合する位置により、前記可動接触子9の接触深さを調整するトリップレバー28のストッパー37と、
前記駆動レバー20のピン21に係合する係合面を有し前記操作軸に固定した操作レバー25を係止する、容器1に取付けたストッパー35とを有し、
前記可動接触子9が前記固定電極4から離れて開路した手動操作での開路状態においては、前記トリップレバー28のピン29が、前記ピン26と前記操作軸23を結ぶ線よりも、前記ピン26側からみて左側に位置し、前記駆動ばね27のばね力によって、前記トリップレバー28の係合面28aが、前記駆動レバー20のピン21aを押圧して、前記駆動レバー20を反時計方向に回動させようとし、
前記可動接触子9が前記固定電極4と接触して閉路した手動操作での閉路状態においては、前記トリップレバー28のピン29が、前記ピン26と前記操作軸23を結ぶ線よりも、前記ピン26側からみて右側に位置し、前記駆動ばね27のばね力によって、前記トリップレバー28の係合面28bが、前記駆動ばね27のばね力によって、前記駆動レバー20のピン21bを押圧して、前記駆動レバー20を時計方向に回動させようとすることを特徴とする開閉器の操作装置。
Switch container 1,
A stationary contact 5 and a movable contact 9 housed in the container 1,
A drive shaft 10 to which an insulating arm 11 supported by the container 1 and moving the movable contact 9 is attached;
An electromagnet 12 supported by the container 1 and rotating the drive shaft 10 via a link lever 19;
One end protrudes from the container 1, and an operation shaft 23 supported so that one handle 24 is attached to the protruding part and the container 1 can rotate.
A trip lever 28 which is attached to the operation shaft 23 so as to be rotatable and has bifurcated engagement surfaces 28a, 28b ;
An operation lever 25 fixed to the operation shaft 23;
A pin 26 provided on the non-operation shaft side of the operation lever 25;
A pin 29 provided at a position between the pin 26 and the operation shaft 23 of the trip lever 28;
One end attached to the pin 26 of the operating lever 25 , the other end attached to the pin 29 of the trip lever 28, and a drive spring 27 straddled between the operating lever 25 and the trip lever 28;
The pin 21a, 21b is attached to one end of the plate surface so as to be positioned between the two engagement surfaces 28a, 28b of the trip lever 28. together, mounting the latch roller 22 at the other end, a drive lever 20 which is thus rotated to the trip lever 28,
A latch lever 30 which is attached to the container 1 so as to be pivotable, has an engagement recess 32 which engages with the latch roller 22 of the drive lever 20 at one end, and a protruding piece 33 at the other end;
A stopper 37 of a trip lever 28 for adjusting the contact depth of the movable contact 9 according to the position at which the latch roller 22 of the drive lever 20 engages with the engagement recess 32 of the latch lever 30;
A stopper 35 attached to the container 1, which has an engagement surface that engages with the pin 21 of the drive lever 20 and that locks the operation lever 25 fixed to the operation shaft ;
In the open state in the manual operation in which the movable contact 9 is opened away from the fixed electrode 4, the pin 29 of the trip lever 28 is more than the line connecting the pin 26 and the operation shaft 23. The engagement surface 28a of the trip lever 28 presses the pin 21a of the drive lever 20 and rotates the drive lever 20 counterclockwise by the spring force of the drive spring 27. Trying to move,
In a closed state in a manual operation in which the movable contactor 9 is in contact with the fixed electrode 4 and closed, the pin 29 of the trip lever 28 is more than the line connecting the pin 26 and the operation shaft 23. The engagement surface 28b of the trip lever 28 presses the pin 21b of the drive lever 20 by the spring force of the drive spring 27. An operating device for a switch, characterized in that the drive lever 20 is rotated clockwise .
開閉器容器1内に、固定接触子5と可動接触子9を収納し、前記可動接触子9の可動を操作装置で行なう開閉器において、前記操作装置を、請求項1に記載の開閉器の操作装置で構成したことを特徴とする開閉器。The switch according to claim 1, wherein a stationary contact 5 and a movable contact 9 are housed in a switch container 1, and the movable contact 9 is moved by an operation device. A switch characterized by comprising an operating device.
JP2002312825A 2002-10-28 2002-10-28 Switch operating device and switch using the same Expired - Fee Related JP4320540B2 (en)

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