JP4461958B2 - Circuit breaker - Google Patents

Circuit breaker Download PDF

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Publication number
JP4461958B2
JP4461958B2 JP2004246506A JP2004246506A JP4461958B2 JP 4461958 B2 JP4461958 B2 JP 4461958B2 JP 2004246506 A JP2004246506 A JP 2004246506A JP 2004246506 A JP2004246506 A JP 2004246506A JP 4461958 B2 JP4461958 B2 JP 4461958B2
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handle
operation handle
state
lock member
circuit breaker
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JP2006066184A (en
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初男 水野
憲一郎 志水
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Panasonic Corp
Panasonic Electric Works Co Ltd
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Panasonic Corp
Matsushita Electric Works Ltd
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Description

本発明は、回路遮断器に関するものである。   The present invention relates to a circuit breaker.

従来、上面に開口孔を有するケースと、開口孔内に沈むように倒伏するオン状態と開口孔より起立するオフ状態との間を回動自在にケース内に設けられた操作ハンドルと、操作ハンドルのオン状態で操作ハンドルの先端に手指を掛けるための凹部を開口孔に連続してケースに形成した回路遮断器があった（特許文献１参照）。   Conventionally, a case having an opening hole on the upper surface, an operation handle provided in the case so as to be freely rotatable between an on state where it lies down so as to sink into the opening hole and an off state standing from the opening hole, There has been a circuit breaker in which a concave portion for placing a finger on the tip of an operation handle in an on state is formed in a case continuously with an opening hole (see Patent Document 1).

本回路遮断器によれば、操作ハンドルを手指で倒しまたは起立してオンまたはオフに操作することができるとともに、電路の異常電流を検出してトリップ動作することで操作ハンドルがオフ側に回動し、操作ハンドルがケースの開口孔より起立してトリップ表示される。これにより異常電流が流れることにより生じるトリップ状態を容易に確認することができる。異常から正常に復旧した後はオフ状態の操作ハンドルを再びオン操作することができる。   According to this circuit breaker, the operation handle can be turned on or off by tilting or standing with a finger, and the operation handle can be turned off by detecting an abnormal current in the electric circuit and performing a trip operation. The operation handle stands up from the opening hole of the case and is displayed as a trip. Thereby, it is possible to easily confirm a trip state caused by an abnormal current flowing. After normal recovery from the abnormality, the operation handle in the off state can be turned on again.

つぎに、操作ハンドルをオンロックする場合、ハンドルロック部材をオン状態の操作ハンドル上に被せるようにケースに取付けていた。
特開2001−307577 Next, when the operation handle is on-locked, the handle lock member is attached to the case so as to cover the operation handle in the on state.
JP2001-307577

しかし、ハンドルロック部材を操作ハンドルに被せるように取付けた場合、オンロックはできるものの、操作ハンドルがハンドルロック部材によってオン位置にあるままに規制されて起立することができないので、ハンドルロック部材を外さない限り、トリップ状態が分からないという課題があった。   However, when the handle lock member is mounted on the operation handle, it can be locked on, but the operation handle cannot be stood up while being restricted by the handle lock member. There was a problem that the trip state was not known unless there was.

したがって、本発明の目的は、操作ハンドルをオンロックさせることができ、しかもトリップ表示が行える回路遮断器を提供することである。   Accordingly, an object of the present invention is to provide a circuit breaker that can lock an operation handle and can perform a trip display.

本発明の回路遮断器は、ケースが上面に開口孔を有する。操作ハンドルは前記開口孔内に沈むように倒伏するオン状態と前記開口孔より起立するオフ状態との間を回動自在に前記ケース内に設けられている。そして前記操作ハンドルの前記オン状態で前記操作ハンドルの先端に手指を掛けるための凹部を前記開口孔に連続して前記ケースに形成している。ハンドルロック部材は前記オン状態の前記操作ハンドルの先端の延長方向の直前に接近するように前記凹部に取付けられて前記操作ハンドルの先端に前記手指が掛かるのを阻止する。   As for the circuit breaker of this invention, a case has an opening hole in the upper surface. The operation handle is provided in the case so as to be rotatable between an on state where the operation handle lies so as to sink into the opening hole and an off state where the operation handle stands up from the opening hole. A recess is formed in the case continuously with the opening hole for placing a finger on the tip of the operation handle when the operation handle is in the ON state. A handle lock member is attached to the recess so as to approach immediately before the extension direction of the tip of the operation handle in the on state, and prevents the finger from being hooked on the tip of the operation handle.

上記構成において、前記ケースが複数横並びに並設され、１つの前記ハンドルロック部材が前記複数のケースの凹部に跨がって取付けられている。   In the above configuration, a plurality of cases are arranged side by side, and one handle lock member is attached across the recesses of the plurality of cases.

本発明の回路遮断器によれば、操作ハンドルがオン状態のときに操作ハンドルをオフ操作しようとしてもハンドルロック部材によって操作ハンドルの先端に手指を掛けることができないので操作ハンドルを操作することができず、オフ操作することができない。しかも、異常電流によってトリップした場合にはハンドルロック部材に関係なく操作ハンドルがオフ側に回動するので、トリップしたことを一目で判断できる。さらに、異常電流が停止し正常な状態に復旧後は再びオン状態に操作することが可能である。   According to the circuit breaker of the present invention, it is possible to operate the operation handle because it is impossible to put a finger on the tip of the operation handle by the handle lock member even if the operation handle is turned off when the operation handle is in the on state. It cannot be turned off. In addition, when the trip is caused by an abnormal current, the operation handle rotates to the off side regardless of the handle lock member, so it can be determined at a glance that the trip has occurred. Furthermore, after the abnormal current is stopped and restored to a normal state, it can be operated again in the on state.

また、ハンドルロック部材を複数のケースの凹部に跨がって取付けることにより一度に複数の回路遮断器をハンドルロックさせることができる。   Moreover, a plurality of circuit breakers can be handle-locked at a time by attaching the handle lock member across the recesses of the plurality of cases.

本発明の第１の実施の形態を図１から図４により説明する。すなわち、本回路遮断器は、ケース１の上面に枠状の突部３を形成しその内側に開口孔４を形成し、開口孔４内に操作ハンドル２を設けている。また開口孔４に連続して突部３内に手指の先端を挿入するための凹部５を形成している。凹部５は後述するオン状態の操作ハンドル２の先端２ａと先端２ａの延長方向に対向する突部３の端壁との間の隙間により形成されている。さらに凹部５の両側で突部３にケース１の外面に開く切欠６を形成するとともに、切欠６の下側の突部３の内壁面に係止凹部７を形成している。ケース１の一端部には主幹回路遮断器に接続された分岐用バー（図示せず）を接続するための複数の溝８を形成し、溝８内に分岐用バーに接触する入力側導電部材９を設けている。ケース１の他端部には負荷側接続端子１０が設けられている。またケース１の内部には操作ハンドル２のオンオフ操作で可動接触子（図示せず）を開閉し、電路の異常電流を検出して可動接触子をトリップ開極し操作ハンドル２をオフ位置へ起立するように動作する開閉・トリップ機構（図示せず）が収納されている。   A first embodiment of the present invention will be described with reference to FIGS. That is, this circuit breaker has a frame-like protrusion 3 formed on the upper surface of the case 1, an opening hole 4 is formed inside thereof, and an operation handle 2 is provided in the opening hole 4. In addition, a recess 5 for inserting the tip of a finger into the protrusion 3 is formed continuously with the opening hole 4. The concave portion 5 is formed by a gap between a distal end 2a of the operation handle 2 in an ON state, which will be described later, and an end wall of the protruding portion 3 facing the extending direction of the distal end 2a. Further, notches 6 that open to the outer surface of the case 1 are formed in the protrusion 3 on both sides of the recess 5, and a locking recess 7 is formed on the inner wall surface of the protrusion 3 below the notch 6. A plurality of grooves 8 for connecting a branching bar (not shown) connected to the main circuit breaker is formed at one end of the case 1, and an input side conductive member that contacts the branching bar in the groove 8. 9 is provided. A load-side connection terminal 10 is provided at the other end of the case 1. Further, inside the case 1, a movable contact (not shown) is opened and closed by turning on and off the operation handle 2, an abnormal current in the electric circuit is detected, the trip of the movable contact is opened, and the operation handle 2 is raised to the off position. An open / close / trip mechanism (not shown) that operates as described above is housed.

操作ハンドル２は、開閉・トリップ機構に連結され、オン状態で開口孔４内に面一に沈むように倒伏し、かつ、オフ状態で開口孔４より起立するように回動自在にケース１内に設けられている。操作ハンドル２のオン状態では開口孔４内に操作ハンドル２が沈み込んでいるため、操作ハンドル２をオフ操作する場合、凹部５に手指を入れながら操作ハンドル２の先端２ａに手指を掛けて起こすようにする以外にオフ操作することは困難である。   The operation handle 2 is connected to an opening / closing / trip mechanism, lies down so as to be flush with the opening hole 4 in the on state, and is rotatable in the case 1 so as to stand up from the opening hole 4 in the off state. Is provided. When the operation handle 2 is turned on, the operation handle 2 sinks into the opening hole 4. Therefore, when the operation handle 2 is turned off, the finger is placed on the tip 2 a of the operation handle 2 while putting the finger into the recess 5. It is difficult to perform an off operation other than the above.

ハンドルロック部材１１は、ほぼ凹部５を塞ぐ板状であり、操作ハンドル２側の両側より切欠６に係合するための突起１２を形成し、また裏面の両側に引掛凹部７に引っ掛ける引掛爪１３を突設している。ハンドルロック部材１１は凹部５の切欠６に突起１２を含む両側が係合するように押し込むと引掛爪１３が引掛凹部７に引っ掛って係止する。この状態で、ハンドルロック部材１１が凹部１５を塞いで操作ハンドル２の先端２ａの延長方向の直前に接近するように配置されるとともに、図３に示すようにハンドルロック部材１１の表面は突部３の上面と面一になる。これにより、ハンドルロック部材１１が凹部５を塞ぐように凹部５に取付けられて操作ハンドル２の先端２ａに手指が係るのを阻止し、ハンドルロック部材１１があることによって操作ハンドル２をオフ操作することができずにオンロックされることとなる。   The handle lock member 11 has a plate shape that substantially closes the recess 5, has protrusions 12 that engage with the notches 6 from both sides on the operation handle 2 side, and a hook claw 13 that hooks on the hook recess 7 on both sides of the back surface. Is protruding. When the handle lock member 11 is pushed into the notch 6 of the recess 5 so that both sides including the protrusion 12 are engaged, the hooking claw 13 is hooked on the hook recess 7 and locked. In this state, the handle lock member 11 closes the concave portion 15 and is disposed so as to approach immediately before the distal end 2a of the operation handle 2 extends, and the handle lock member 11 has a protruding surface as shown in FIG. 3 is flush with the top surface. As a result, the handle lock member 11 is attached to the recess 5 so as to close the recess 5 to prevent the finger from touching the tip 2a of the operation handle 2, and the operation handle 2 is turned off by the presence of the handle lock member 11. It will be locked on without being able to.

図４は開閉・トリップ機構のトリップ動作状態である。ハンドルロック部材１１は操作ハンドル２の上面を覆っていないため、開閉・トリップ機構がトリップ動作すると操作ハンドル２はオフ位置へ回動することができ、操作ハンドル２が起立することによりトリップ表示を行うことができる。また異常から正常な状態に復旧後は操作ハンドル２をハンドルロック部材１１が取り付けられたままでオン操作することができる。   FIG. 4 shows a trip operation state of the opening / closing / trip mechanism. Since the handle lock member 11 does not cover the upper surface of the operation handle 2, when the opening / closing / trip mechanism trips, the operation handle 2 can be turned to the off position, and the operation handle 2 stands up to display a trip display. be able to. Further, after the abnormality is restored to the normal state, the operation handle 2 can be turned on with the handle lock member 11 attached.

本発明の第２の実施の形態を図５から図８により説明する。すなわち、第１の実施の形態の回路遮断器からなる複数の回路遮断器のケース１が横並びに並設されている。ハンドロック部材１１は複数のケース１に設けられた各凹部５に跨がって配設される長さを有し、その両側に突起１２および引掛爪１３を有する。ハンドルロック部材１１は各ケース１の凹部５および切欠６にまたがり、ハンドルロック部材１１の突起１２を含む両側は複数並んだケース１の最外側の切欠６に係合し、引掛爪１３もケース１の最外側の引掛凹部５に引っ掛かって係止し、ハンドルロック部材１１の上面が突部３の上面に面一になっている。その他は第１の実施の形態と共通している。第２の実施の形態によれば、一度のハンドルロック部材１１を取付ける操作で複数の回路遮断器をハンドルロックすることができるので便利である。   A second embodiment of the present invention will be described with reference to FIGS. That is, a plurality of circuit breaker cases 1 including the circuit breaker according to the first embodiment are arranged side by side. The hand lock member 11 has a length that extends over the recesses 5 provided in the plurality of cases 1, and has protrusions 12 and hooking claws 13 on both sides thereof. The handle lock member 11 spans the recess 5 and the notch 6 of each case 1, and both sides including the projection 12 of the handle lock member 11 engage with the outermost notch 6 of the case 1, and the hooking claw 13 is also in the case 1. The upper surface of the handle lock member 11 is flush with the upper surface of the projection 3. Others are common to the first embodiment. According to the second embodiment, a plurality of circuit breakers can be handle-locked by a single operation of attaching the handle lock member 11, which is convenient.

本発明の第１の実施の形態のハンドルロック部材を外したオン状態の回路遮断器の斜視図である。It is a perspective view of the circuit breaker of the ON state which removed the handle lock member of a 1st embodiment of the present invention. ハンドルロック部材を取付けたオン状態の回路遮断器の斜視図である。It is a perspective view of the circuit breaker of the ON state which attached the handle lock member. ハンドルロック部材を係止した状態の部分断面図である。It is a fragmentary sectional view in the state where a handle lock member was latched. トリップ状態の斜視図である。It is a perspective view of a trip state. 第２の実施の形態のハンドルロック部材を外したオン状態の回路遮断器の斜視図である。It is a perspective view of the circuit breaker of the ON state which removed the handle lock member of a 2nd embodiment. ハンドルロック部材を取付けたオン状態の回路遮断器の斜視図である。It is a perspective view of the circuit breaker of the ON state which attached the handle lock member. ハンドルロック部材を係止した状態の部分断面図である。It is a fragmentary sectional view in the state where a handle lock member was latched. トリップ状態の斜視図である。It is a perspective view of a trip state.

符号の説明Explanation of symbols

１ ケース
２ 操作ハンドル
３ 突部
４ 開口孔
５ 凹部
１１ ハンドルロック部材

DESCRIPTION OF SYMBOLS 1 Case 2 Operation handle 3 Protrusion part 4 Opening hole 5 Recessed part 11 Handle lock member

Claims (2)

上面に開口孔を有するケースと、前記開口孔内に沈むように倒伏するオン状態と前記開口孔より起立するオフ状態との間を回動自在に前記ケース内に設けられた操作ハンドルと、前記操作ハンドルの前記オン状態で前記操作ハンドルの先端に手指を掛けるための凹部を前記開口孔に連続して前記ケースに形成した回路遮断器において、前記オン状態の前記操作ハンドルの先端の延長方向の直前に接近するように前記凹部に取付けられて前記操作ハンドルの先端に前記手指が掛かるのを阻止するハンドルロック部材を設けたことを特徴とする回路遮断器。   A case having an opening hole on an upper surface thereof, an operation handle provided in the case so as to be rotatable between an on state where the body lies down so as to sink into the opening hole and an off state which stands up from the opening hole, and the operation In the circuit breaker in which the concave portion for placing a finger on the tip of the operation handle in the on state of the handle is formed in the case continuously to the opening hole, immediately before the extension direction of the tip of the operation handle in the on state A circuit breaker provided with a handle lock member which is attached to the recess so as to be close to the handle and prevents the finger from being applied to the tip of the operation handle. 前記ケースが複数横並びに並設され、１つの前記ハンドルロック部材が前記複数のケースの前記凹部に跨がって取付けられている請求項１記載の回路遮断器。


2. The circuit breaker according to claim 1, wherein a plurality of the cases are arranged side by side, and one handle lock member is attached across the recesses of the plurality of cases.


JP2004246506A 2004-08-26 2004-08-26 Circuit breaker Expired - Fee Related JP4461958B2 (en)

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Publication number Priority date Publication date Assignee Title
JP4845189B2 (en) * 2006-03-22 2011-12-28 河村電器産業株式会社 Circuit breaker handle lock mechanism
JP4936427B2 (en) * 2006-03-22 2012-05-23 河村電器産業株式会社 Circuit breaker handle lock mechanism
JP5309236B2 (en) * 2012-03-02 2013-10-09 株式会社日立産機システム Switch

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JPS6247044U (en) * 1985-09-10 1987-03-23
JPH0631618Y2 (en) * 1987-12-11 1994-08-22 富士電機株式会社 Switch handle lock device
JP2530712Y2 (en) * 1990-03-12 1997-03-26 富士電機株式会社 Open / close display of multi-pole switch
JP4201456B2 (en) * 2000-03-21 2008-12-24 オリジン電気株式会社 Power supply
JP2003297213A (en) * 2002-03-29 2003-10-17 Kawamura Electric Inc Handle lock of circuit breaker

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