JPH0557729U - Optical auxiliary switch for switch - Google Patents
Optical auxiliary switch for switchInfo
- Publication number
- JPH0557729U JPH0557729U JP3792U JP3792U JPH0557729U JP H0557729 U JPH0557729 U JP H0557729U JP 3792 U JP3792 U JP 3792U JP 3792 U JP3792 U JP 3792U JP H0557729 U JPH0557729 U JP H0557729U
- Authority
- JP
- Japan
- Prior art keywords
- light
- switch
- movable shaft
- sealed container
- light emitting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Switch Cases, Indication, And Locking (AREA)
- Switches Operated By Changes In Physical Conditions (AREA)
Abstract
(57)【要約】
【目的】長期の使用に耐える開閉器用光式補助スイッチ
を提供する。
【構成】密封容器２０の壁部を気密かつ摺動自在に貫通
した状態で、開閉器の開位置に相応する位置と閉位置に
相応する位置との間を変位する可動軸２１を設ける。密
封容器に発光器３１，３３及び受光器３２，３４を取り
付け、可動軸に反射板２４を取り付ける。可動軸２１が
開閉器の開位置に相応する位置または閉位置に相応する
位置に達した時に発光器３１または３３が発した光を反
射板２４により反射させて受光器３２または３４に与え
る。
(57) [Summary] [Purpose] To provide an optical auxiliary switch for a switch that withstands long-term use. A movable shaft 21 is provided which is displaced between a position corresponding to an open position and a position corresponding to a closed position of a switch in a state where a wall portion of a hermetic container 20 is hermetically and slidably penetrated. The light emitters 31 and 33 and the light receivers 32 and 34 are attached to the sealed container, and the reflection plate 24 is attached to the movable shaft. When the movable shaft 21 reaches the position corresponding to the open position or the closed position of the switch, the light emitted from the light emitting device 31 or 33 is reflected by the reflecting plate 24 and applied to the light receiving device 32 or 34.
Description
【０００１】[0001]
本考案は、遮断器や断路器等の開閉器の開閉状態をモニタするために該開閉器 に付属させる補助スイッチに関するものである。 The present invention relates to an auxiliary switch attached to a switch such as a circuit breaker or a disconnector to monitor the open / closed state of the switch.
【０００２】[0002]
遮断器や断路器等の開閉器には、その開閉状態をモニタするために、開閉器の 主接点の動きに連動して動作する機械式の補助スイッチが設けられている。この 補助スイッチは、開閉器の操作コイルの電流を開閉したり、開閉器と他の機器と のインターロックを構成したりするために用いられるが、機械式の補助スイッチ には次のような問題があることが指摘されている。 開閉時のアークにより接点が損傷し、通電性能が低下する。 接点に塵埃等が挟まることにより導通不良を起こすおそれがある。 多数回の開閉で機械的に損傷する。 インターロックのために多くの接点を設ける必要があるため、大形化し、スペ ースをとる。 A switch such as a circuit breaker or a disconnector is provided with a mechanical auxiliary switch that operates in synchronization with the movement of the main contact of the switch in order to monitor the open / closed state. This auxiliary switch is used to open and close the current in the operating coil of the switch and to form an interlock between the switch and other equipment.However, mechanical auxiliary switches have the following problems. It has been pointed out that there is. The arc during opening and closing damages the contacts and reduces the current-carrying performance. Dust may get caught in the contacts, resulting in poor continuity. Mechanical damage after opening and closing a large number of times. Since it is necessary to provide many contacts for interlocking, it will be large and space consuming.
【０００３】 上記の問題を解決するため、近年、制御回路の無接点化に伴って、補助スイッ チとして光電スイッチ等の光を応用したスイッチを用いることが検討されている 。図４は光センサを利用した補助スイッチの一例を示したもので、同図において １は開閉器の動作と連動する操作軸、２は操作軸１の端部に取付けられたレバー であり、レバー２には、光を反射する反射板３が取り付けられている。レバー２ の側方には、発光部４ａがレバー２に向けられた発光器４と、受光部５ａがレバ ー２に向けられた受光器５とが配置され、開閉器が投入状態または遮断状態にな ったときに発光器４から発射された光が反射板３により反射されて受光器５によ り受光されるようになっている。発光器４が発射した光及び受光器５が受光した 光はそれぞれ光ファイバ６及び７により光電変換部８及び９に与えられて電気信 号に変換され、光電変換部８及び９から得られる電気信号が演算部１０に与えら れる。この演算部で種々の条件判定が行われ、発光部４が光を発生しかつ受光部 ５が光を受光したことが検出されたときに出力部１１からリレー１２に信号が与 えられて、そのａ接点（常開接点）５２ａ及びｂ接点（常閉接点）５２ｂがそれ ぞれ閉状態及び開状態にされる。In order to solve the above problems, in recent years, it has been considered to use a switch to which light is applied, such as a photoelectric switch, as an auxiliary switch along with the non-contact of the control circuit. FIG. 4 shows an example of an auxiliary switch using an optical sensor. In the figure, 1 is an operating shaft that interlocks with the operation of a switch, and 2 is a lever attached to the end of the operating shaft 1. A reflection plate 3 that reflects light is attached to 2. On the side of the lever 2, there are arranged a light emitter 4 whose light emitting portion 4a is directed toward the lever 2 and a light receiver 5 whose light receiving portion 5a is directed toward the lever 2 so that the switch is in a closed state or a closed state. In this case, the light emitted from the light emitting device 4 is reflected by the reflecting plate 3 and received by the light receiving device 5. The light emitted by the light emitter 4 and the light received by the light receiver 5 are given to the photoelectric conversion units 8 and 9 by the optical fibers 6 and 7, respectively, and converted into electric signals, and the electricity obtained from the photoelectric conversion units 8 and 9 is obtained. The signal is given to the arithmetic unit 10. Various conditions are determined by this arithmetic unit, and when it is detected that the light emitting unit 4 emits light and the light receiving unit 5 receives the light, a signal is given from the output unit 11 to the relay 12, The a contact (normally open contact) 52a and the b contact (normally closed contact) 52b are closed and opened, respectively.
【０００４】 上記の光式の補助スイッチは、以下に示すような利点を有する。 （イ）接点５２ａ，５２ｂが開閉器本体の動きに関係しないため、機械的な損傷 がない。 （ロ）信号が光ファイバーにより伝送されるため、電気的なノイズの影響を受け にくい。 （ハ）開閉器側には発光部と受光部とを設置すれば良いため、開閉器をコンパク トに構成できる。 （ニ）単なる開閉器の開閉状態の監視だけでなく、動作時間のモニタなど予測保 全的な機能を付加することができるThe above optical type auxiliary switch has the following advantages. (A) Since the contacts 52a and 52b are not related to the movement of the switch body, there is no mechanical damage. (B) Since signals are transmitted via optical fibers, they are unlikely to be affected by electrical noise. (C) Since the light emitting part and the light receiving part may be installed on the switch side, the switch can be made compact. (D) In addition to simply monitoring the switching status of the switch, it is possible to add predictive safety functions such as operating time monitoring.
【０００５】[0005]
図４に示したように発光器４と受光器５と反射板３とを配置した場合には、長 期の使用により発光器、受光器及び反射板が塵埃の付着等により曇って信号量が 変化するため、信頼性に問題があった。 When the light emitter 4, the light receiver 5 and the reflector plate 3 are arranged as shown in FIG. 4, the light emitter, the light receiver and the reflector plate are clouded due to adhesion of dust or the like due to long-term use, and the signal amount is increased. Since it changed, there was a problem in reliability.
【０００６】 本考案の目的は上記の問題を解決した開閉器用光式補助スイッチを提供するこ とにある。An object of the present invention is to provide an optical auxiliary switch for a switch which solves the above problems.
【０００７】[0007]
本考案に係わる光式補助スイッチは、密封容器と、該密封容器の壁部を気密か つ回転自在または摺動自在に貫通した状態で設けられていて開閉器の動作に連動 して開閉器の開位置に相応する位置と閉位置に相応する位置との間を回転変位ま たは直線変位させられる可動軸と、少なくとも発光部が前記密封容器内に配置さ れて該発光部が前記可動軸に指向させられた発光器と、少なくとも受光部が前記 密封容器内に配置されて該受光部が前記可動軸に指向させられた受光器と、上記 可動軸に設けられていて該可動軸が開位置に相応する位置または閉位置に相応す る位置に達した時に発光器から得られる光を受光器に与える光伝達手段とにより 構成される。 The optical auxiliary switch according to the present invention is provided with a hermetically sealed container and a wall portion of the hermetically sealed container so as to rotatably or slidably penetrate therethrough. A movable shaft which is rotationally or linearly displaced between a position corresponding to the open position and a position corresponding to the closed position; and at least the light emitting portion is disposed in the sealed container, and the light emitting portion is disposed at the movable shaft. A light emitter directed to the movable shaft, at least a light receiver disposed in the sealed container, the light receiver directed to the movable shaft, and the movable shaft provided on the movable shaft. And a light transmitting means for giving the light obtained from the light emitter to the light receiver when the position corresponding to the position or the position corresponding to the closed position is reached.
【０００８】 上記密封容器内には乾燥空気を封入するか、またはＮ2 やＳＦ6 ガス等の不活 性なガスを封入するのが好ましい。It is preferable that the airtight container is filled with dry air or an inert gas such as N 2 or SF 6 gas.
【０００９】[0009]
上記のように発光器及び受光器の少なくとも発光部及び受光部を密封容器内に 配置するとともに、開閉器が開状態または閉状態になったときに発光器から発射 された光を受光器に与える光伝達手段を密封容器内に配置すると、光のやり取り をする部分がすべて密封容器内に配置される。そのため、これらの部分が外気の 影響を受けて劣化するのを防ぐことができ、長期の使用により信号量が減衰する のを防いで信頼性を向上させることができる。 As described above, at least the light emitting part and the light receiving part of the light emitting device and the light receiving device are arranged in a sealed container, and the light emitted from the light emitting device is applied to the light receiving device when the switch is opened or closed. When the light transmitting means is arranged in the sealed container, all the parts for exchanging light are arranged in the sealed container. Therefore, it is possible to prevent these parts from being deteriorated due to the influence of the outside air, and it is possible to prevent the signal amount from being attenuated due to long-term use and improve the reliability.
【００１０】[0010]
図１は本考案の実施例の要部を示したもので、同図において２０は中空部２０ ａを有する密封容器である。密封容器２０の一端の端部壁２０ｂを気密保持構造 で摺動自在に貫通させて可動軸２１が設けられている。図中２２は可動軸２１を 支持するスラスト軸受、２３は可動軸の貫通部の気密を保持るためのＯリング等 のシール手段である。可動軸２１の密封容器内に位置する一端には大径部２１ａ が設けられていて、該大径部２１ａの一部に反射板２４が取り付けられている。 可動軸２１の他端にはネジ部２１ｂが設けられ、該ネジ部２１ｂは、図２に示す ように、リンク２５の一端に連結されている。リンク２５の他端は開閉器の操作 軸２６に取り付けられたレバー２７にピンを介して連結され、開閉器の開閉に伴 って可動軸２１が図１及び図２のＸ−Ｘ´方向に沿って、図１に実線で示した開 位置と、図１に破線で示した閉位置との間を直線移動するようになっている。 FIG. 1 shows a main part of an embodiment of the present invention, in which reference numeral 20 is a hermetic container having a hollow portion 20a. A movable shaft 21 is provided by slidably penetrating an end wall 20b at one end of the hermetic container 20 with an airtight holding structure. In the figure, 22 is a thrust bearing that supports the movable shaft 21, and 23 is a sealing means such as an O-ring for maintaining the airtightness of the penetrating portion of the movable shaft. A large diameter portion 21a is provided at one end of the movable shaft 21 located inside the sealed container, and a reflection plate 24 is attached to a part of the large diameter portion 21a. A screw portion 21b is provided at the other end of the movable shaft 21, and the screw portion 21b is connected to one end of a link 25, as shown in FIG. The other end of the link 25 is connected via a pin to a lever 27 attached to the operating shaft 26 of the switch, and the movable shaft 21 moves in the XX 'direction in FIGS. 1 and 2 as the switch opens and closes. Along the line, a linear movement is made between the open position shown by the solid line in FIG. 1 and the closed position shown by the broken line in FIG.
【００１１】 尚図１において、可動軸２１の実線で示した位置及び破線で示した位置のいず れを開位置とし、いずれを閉位置とするかは任意である。It should be noted that, in FIG. 1, it is arbitrary which one of the position shown by the solid line and the position shown by the broken line of the movable shaft 21 is the open position and which is the closed position.
【００１２】 密閉容器１０の、前記反射板２４が対向する側壁部２０ｃを気密に貫通させて 第１の発光器３１及び第１の受光器３２と、第２の発光器３３及び第２の受光器 ３４とが取り付けられている。第１の発光器３１及び第１の受光器３２は、可動 軸２１が図１に実線で示した開位置にあるときに、それぞれの発光部（光の発射 口）３１ａ及び受光部（受光窓）３２ａの光軸が反射板２４上の一点で等しい入 射角θ及び出射角θ´で交わるように位置決めされている。また第２の発光器３ ３及び第１の受光器３４は、可動軸２１が図１に破線で示した閉位置にあるとき に、それぞれの発光部３３ａ及び受光部３４ａの光軸が反射板２４上の一点で等 しい入射角θ及び出射角θ´で交わるように位置決めされている。A first light emitter 31 and a first light receiver 32, and a second light emitter 33 and a second light receiver are formed by hermetically penetrating a side wall portion 20 c of the hermetically sealed container 10 facing the reflection plate 24. And a container 34 are attached. The first light emitter 31 and the first light receiver 32 respectively have a light emitting portion (light emitting port) 31a and a light receiving portion (light receiving window) when the movable shaft 21 is in the open position shown by the solid line in FIG. ) 32a is positioned so that the optical axis of 32a intersects at the same incident angle θ and outgoing angle θ ′ at one point on the reflection plate 24. Further, the second light emitter 33 and the first light receiver 34 have the optical axes of the light emitting portion 33a and the light receiving portion 34a when the movable shaft 21 is in the closed position shown by the broken line in FIG. It is positioned so that one point on 24 intersects at an equal incident angle θ and an equal outgoing angle θ ′.
【００１３】 従って、開閉器が開状態にあるときには、第１の発光器３１から発射された光 が反射板２４により反射されて第１の受光器３２に与えられる。また開閉器が閉 状態にあるときには第２の発光器３３から発射された光が反射板２４により反射 されて第２の受光器３４に与えられる。すなわち、開閉器が開状態になったとき に第１の受光器３２から受光出力が得られ、開閉器が開状態になったときに第２ の受光器３４から受光出力が得られる。Therefore, when the switch is in the open state, the light emitted from the first light emitter 31 is reflected by the reflecting plate 24 and given to the first light receiver 32. Further, when the switch is in the closed state, the light emitted from the second light emitter 33 is reflected by the reflecting plate 24 and given to the second light receiver 34. That is, when the switch is opened, the light receiving output is obtained from the first light receiver 32, and when the switch is opened, the light receiving output is obtained from the second light receiver 34.
【００１４】 第１の発光器３１及び第２の発光器３３はそれぞれ光ファイバケーブル３５及 び３６を通して発光源４０及び４１に接続され、第１の受光器３２及び第２の受 光器３４はそれぞれ光ファイバケーブル３７及び３８を通して光電変換素子を備 えた光電変換部４２及び４３に接続される。The first light emitter 31 and the second light emitter 33 are connected to light emission sources 40 and 41 through optical fiber cables 35 and 36, respectively, and the first light receiver 32 and the second light receiver 34 are connected to each other. It is connected to photoelectric conversion units 42 and 43 equipped with photoelectric conversion elements through optical fiber cables 37 and 38, respectively.
【００１５】 発光源４０及び４１の光出力はまた光電変換部４４及び４５により電気信号に 変換され、これらの光電変換部４４及び４５から得られる電気信号は、光電変換 部４２及び４３から得られる電気信号とともに演算部４６に与えられている。こ の演算部の出力は出力部４７に与えられ、該出力部４７からリレー４８に信号が 与えられる。The light outputs of the light emitting sources 40 and 41 are also converted into electric signals by the photoelectric conversion units 44 and 45, and the electric signals obtained from these photoelectric conversion units 44 and 45 are obtained from the photoelectric conversion units 42 and 43. It is given to the calculation unit 46 together with the electric signal. The output of this arithmetic unit is given to the output unit 47, and a signal is given from the output unit 47 to the relay 48.
【００１６】 密封容器２０内には、乾燥空気を封入するか、またはＮ2 ガスやＳＦ6 ガス等 の不活性なガスを封入しておくことが好ましい。It is preferable that the airtight container 20 is filled with dry air or an inert gas such as N 2 gas or SF 6 gas.
【００１７】 本実施例では、反射板２４により、可動軸２１が開位置に達した時及び閉位置 に達したときに発光部から得られる光を受光部に与える光伝達手段が構成されて いる。In this embodiment, the reflecting plate 24 constitutes a light transmitting means for giving light obtained from the light emitting portion to the light receiving portion when the movable shaft 21 reaches the open position and the closed position. ..
【００１８】 上記の実施例において、開閉器が開状態にあるときには、可動軸２１が図１に 実線で示した位置にあるため、第１の発光器３１が発射した光を第１の受光器３ ２が受光する。このとき光電変換部４４及び光電変換部４２から同時に演算部４ ６に電気信号が与えられる。演算部４６はこれらの電気信号が同時に存在するこ とから、開閉器が開状態になったことを確認する。このとき出力部４７はリレー ４８に信号を与えないため、リレーのａ接点５２ａ及びｂ接点５２ｂはそれぞれ 開状態及び閉状態にある。In the above-described embodiment, when the switch is in the open state, the movable shaft 21 is in the position shown by the solid line in FIG. 1, so that the light emitted from the first light emitter 31 is transmitted to the first light receiver. 32 receives light. At this time, an electric signal is simultaneously given from the photoelectric conversion unit 44 and the photoelectric conversion unit 42 to the calculation unit 46. Since these electric signals are present at the same time, the calculation unit 46 confirms that the switch has been opened. At this time, since the output unit 47 does not give a signal to the relay 48, the a-contact 52a and the b-contact 52b of the relay are in the open state and the closed state, respectively.
【００１９】 開閉器が閉状態になって、可動軸２１が図１に破線で示した閉位置に変位する と、第２の発光器３３から発射された光が第２の受光器３４により受光されるた め、光電変換部４５と４３とから同時に演算部４６に電気信号が与えられる。こ のとき演算部は両電気信号が同時に存在することから開閉器が閉じたことを確認 し、リレー４８を励磁することを指令する信号を出力する。これにより、出力部 ４７からリレー４８に信号が与えられ、該リレーのａ接点５２ａが閉じ、ｂ接点 ５２ｂが開く。When the switch is closed and the movable shaft 21 is displaced to the closed position shown by the broken line in FIG. 1, the light emitted from the second light emitter 33 is received by the second light receiver 34. Therefore, the electric signals are applied from the photoelectric conversion units 45 and 43 to the calculation unit 46 at the same time. At this time, the arithmetic unit confirms that the switch is closed because both electric signals are present at the same time, and outputs a signal instructing to excite the relay 48. As a result, a signal is given from the output section 47 to the relay 48, the a contact 52a of the relay is closed, and the b contact 52b is opened.
【００２０】 上記の説明では、開閉器が開いたときにリレー４８を非励磁とし、開閉器が閉 じたときにリレー４８を励磁するとしたが、逆に開閉器が開いたときにリレー４ ８を励磁し、開閉器が閉じたときにリレー４８を非励磁とするようにしてもよい 。In the above description, the relay 48 is de-energized when the switch is opened, and the relay 48 is excited when the switch is closed. On the contrary, the relay 48 is opened when the switch is opened. The relay 48 may be de-energized when the switch is closed.
【００２１】 上記の実施例では、可動軸を直線変位させるように構成したが、図３（Ａ）， （Ｂ）に示したように、可動軸を回転変位させるようにしてもよい。図３（Ａ） 及び（Ｂ）に示した例では、密封容器５０の壁部を気密かつ回転自在に貫通させ て可動軸５１が設けられ、該可動軸の容器５０内に位置する部分に円板状の遮光 板５２が取り付けられている。容器５０の相対する壁部を気密に貫通させて発光 器５３及び受光器５４が取り付けられ、これら発光器及び受光器の発光部５３ａ 及び受光部５４ａが遮光板５２を間にして対向配置されている。発光器５３は光 ファイバーケーブルを介して図示しない発光源に接続され、受光器５４は光ファ イバーケーブル５６を介して図示しない光電変換部に接続されている。Although the movable shaft is linearly displaced in the above embodiment, the movable shaft may be rotationally displaced as shown in FIGS. 3 (A) and 3 (B). In the example shown in FIGS. 3 (A) and 3 (B), a movable shaft 51 is provided in such a manner that the wall portion of the hermetically sealed container 50 is rotatably and rotatably penetrated, and a circular portion is provided at a portion of the movable shaft located in the container 50. A plate-shaped light shielding plate 52 is attached. A light emitting device 53 and a light receiving device 54 are attached by hermetically penetrating the opposite wall parts of the container 50, and the light emitting device 53a and the light receiving device 54a of the light emitting device and the light receiving device are arranged to face each other with the light shielding plate 52 in between. There is. The light emitter 53 is connected to a light emission source (not shown) via an optical fiber cable, and the light receiver 54 is connected to a photoelectric conversion unit (not shown) via an optical fiber cable 56.
【００２２】 遮光板５２は、発光器５３及び受光器５４に相応する位置に、ほぼ１８０度の 区間に亘って等角度間隔で並ぶ多数のスリット５２ａが設けられている。The light shielding plate 52 is provided with a large number of slits 52 a arranged at equal angular intervals over a section of approximately 180 degrees at positions corresponding to the light emitter 53 and the light receiver 54.
【００２３】 図３に示した実施例による場合には、可動軸５１が開閉器の開閉動作に伴って 、開閉器の開状態に対応する開位置と開閉器の閉状態に対応する閉位置との間を 往復回転させられる。そして可動軸５１が、例えば開位置にあるときに遮蔽光板 ５１のスリットが設けられていない部分が発光器５３及び受光器５４に対向し、 可動軸が開位置から閉位置側に変位する過程で遮光板のスリット５２ａ，５２ａ ，…が順次発光器５３及び受光器５４に対向して、所定の個数のスリットが発光 器及び受光器に対向したところで可動軸５１が閉位置に達するようになっている 。このように構成しておくと、スリット５２ａが受光器５４に対向する毎に該受 光器から信号が得られるので、この信号の数を計数することにより、開閉器が閉 状態になったことを検出することができる。この実施例では、スリット５２ａが 光伝達手段を構成している。In the case of the embodiment shown in FIG. 3, the movable shaft 51 has an open position corresponding to the open state of the switch and a closed position corresponding to the closed state of the switch as the switch opens and closes. It can be rotated back and forth between. When the movable shaft 51 is in the open position, for example, a portion of the shielded light plate 51 where the slit is not provided faces the light emitter 53 and the light receiver 54, and the movable shaft is displaced from the open position to the closed position. The light shielding plate slits 52a, 52a, ... sequentially face the light emitting device 53 and the light receiving device 54, and when the predetermined number of slits face the light emitting device and the light receiving device, the movable shaft 51 reaches the closed position. There is. With this configuration, a signal is obtained from the light receiver each time the slit 52a faces the light receiver 54. Therefore, by counting the number of the signals, the switch is closed. Can be detected. In this embodiment, the slit 52a constitutes the light transmitting means.
【００２４】 上記の各実施例において、密封容器は必ずしも完全な気密構造を有する容器で なくてもよく、塵埃の進入を阻止できる程度に密封された容器であってもよい。In each of the above-mentioned embodiments, the hermetically sealed container is not necessarily a container having a completely airtight structure, but may be a container hermetically sealed to the extent that dust can be prevented from entering.
【００２５】[0025]
以上のように、本考案によれば、発光器及び受光器の少なくとも発光部及び受 光部を密封容器内に配置するとともに、開閉器が開状態または閉状態になったと きに発光器から発射された光を受光器に与える光伝達手段を密封容器内に配置し たので、これらの部分が外気の影響により劣化するのを防いで、長期に亘って信 号量が減衰するのを防ぐことができ、信頼性を向上させることができる。 As described above, according to the present invention, at least the light emitting part and the light receiving part of the light emitter and the light receiver are arranged in the sealed container, and the light emitter emits light when the switch is opened or closed. Since the light transmission means that gives the reflected light to the receiver is placed inside the sealed container, it is possible to prevent these parts from deteriorating due to the influence of the outside air and prevent the signal amount from being attenuated over a long period of time. Therefore, the reliability can be improved.
【図１】本考案の実施例の要部を示した断面図である。FIG. 1 is a sectional view showing an essential part of an embodiment of the present invention.
【図２】本考案の実施例の構成を示した構成図である。FIG. 2 is a configuration diagram showing a configuration of an embodiment of the present invention.
【図３】（Ａ）は本考案の他の実施例の要部を示した断
面図である。（Ｂ）は同実施例で用いる遮光板の正面図
である。FIG. 3A is a sectional view showing an essential part of another embodiment of the present invention. (B) is a front view of the light shielding plate used in the embodiment.
【図４】従来の光式補助スイッチの構成を示した構成図
である。FIG. 4 is a configuration diagram showing a configuration of a conventional optical auxiliary switch.
２０，５０…密封容器、２１，５１…可動軸、２４…反
射板（光伝達手段）、３１，３３…発光器、３２，３４
…受光器、５２…遮光板、５２ａ…スリット（光伝達手
段）。20, 50 ... Sealed container 21, 51 ... Movable shaft, 24 ... Reflector (light transmitting means), 31, 33 ... Light emitter, 32, 34
... light receiver, 52 ... shading plate, 52a ... slit (light transmitting means).
Claims (1)
つ回転自在または摺動自在に貫通した状態で設けられて
いて開閉器の動作に連動して開閉器の開位置に相応する
位置と閉位置に相応する位置との間を回転変位または直
線変位させられる可動軸と、少なくとも発光部が前記密
封容器内に配置されて該発光部が前記可動軸に指向させ
られた発光器と、少なくとも受光部が前記密封容器内に
配置されて該受光部が前記可動軸に指向させられた受光
器と、前記可動軸に設けられていて該可動軸が前記開位
置に相応する位置または閉位置に相応する位置に達した
時に前記発光部から得られる光を受光部に与える光伝達
手段とを備えてなる開閉器用光式補助スイッチ。1. A hermetically sealed container, and a wall portion of the hermetically sealed container which is hermetically and rotatably or slidably pierced so as to interlock with the operation of the switch to correspond to the open position of the switch. A movable shaft which is rotationally or linearly displaced between a position corresponding to the closed position and a closed position; and a light emitter in which at least the light emitting portion is arranged in the sealed container and the light emitting portion is directed to the movable shaft. A light receiver in which at least a light receiving portion is disposed in the sealed container and the light receiving portion is directed to the movable shaft, and a position which is provided on the movable shaft and corresponds to the open position or a closed position. The optical auxiliary switch for a switch, comprising: a light transmitting means for giving the light obtained from the light emitting portion to the light receiving portion when the position corresponding to the above is reached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3792U JPH0557729U (en) | 1992-01-06 | 1992-01-06 | Optical auxiliary switch for switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3792U JPH0557729U (en) | 1992-01-06 | 1992-01-06 | Optical auxiliary switch for switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0557729U true JPH0557729U (en) | 1993-07-30 |
Family
ID=11463134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3792U Withdrawn JPH0557729U (en) | 1992-01-06 | 1992-01-06 | Optical auxiliary switch for switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0557729U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020152981A1 (en) * | 2019-01-22 | 2020-07-30 | オムロン株式会社 | Switch and operating device |
-
1992
- 1992-01-06 JP JP3792U patent/JPH0557729U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020152981A1 (en) * | 2019-01-22 | 2020-07-30 | オムロン株式会社 | Switch and operating device |
| JP2020119690A (en) * | 2019-01-22 | 2020-08-06 | オムロン株式会社 | Switch and operation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 19960404 |