JP4215621B2 - External circuit handle device for circuit breaker - Google Patents

External circuit handle device for circuit breaker Download PDF

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JP4215621B2
JP4215621B2 JP2003386151A JP2003386151A JP4215621B2 JP 4215621 B2 JP4215621 B2 JP 4215621B2 JP 2003386151 A JP2003386151 A JP 2003386151A JP 2003386151 A JP2003386151 A JP 2003386151A JP 4215621 B2 JP4215621 B2 JP 4215621B2
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handle
circuit breaker
rocker
spring
handle device
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JP2005149918A (en
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誠 小笠原
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富士電機アセッツマネジメント株式会社
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Description

本発明は、配線用遮断器，漏電遮断器などを対象とした回路遮断器に適用する外部操作ハンドル装置に関する。   The present invention relates to an external operation handle device applied to a circuit breaker for a circuit breaker for wiring, an earth leakage breaker, and the like.

配電盤，制御盤などに装備した回路遮断器を盤外から開閉操作する付属装置として、従来から外部操作ハンドル装置が広く採用されている。
この外部操作ハンドル装置は、回路遮断器のケース前面に取り付ける本体ベースに、ロータリーハンドル，該ハンドルにターンベースを介して連繋したハンドルアーム付きスライドベースを装備した構成になり、当該ハンドル装置を回路遮断器に組付けた状態で前記スライドベースのハンドルアームを回路遮断器のロッカーハンドルに係合し、ロータリーハンドルの操作により回路遮断器のロッカーハンドルをＯＮ，ＯＦＦ位置に駆動する。
また、上記の外部操作ハンドル装置について、そのＯＮ／ＯＦＦ切換え操作過程でロータリーハンドルがＯＮとＯＦＦ位置の中間で停止してしまう操作性の不具合を改善し、併せて回路遮断器のトリップ動作時には、ロータリーハンドルが停止した位置でトリップ表示ができるようにする手段として、前記スライドベースの左右側縁に形成したカム部を挟んでスライドベースの移動方向と直交する方向からローラ，付勢ばねを介して加圧力を加えるノッチ機構を追加装備した構成が本発明と同一出願人より先に提案されている（特許文献１参照）。 Conventionally, an external operation handle device has been widely used as an accessory device for opening / closing a circuit breaker installed in a switchboard, control panel, etc. from the outside of the panel.
This external operation handle device is equipped with a rotary handle and a slide base with a handle arm connected to the handle via a turn base on the main body base attached to the front of the circuit breaker case. The slide base handle arm is engaged with the rocker handle of the circuit breaker in the state of being assembled to the breaker, and the rocker handle of the circuit breaker is driven to the ON and OFF positions by operating the rotary handle.
In addition, for the above-mentioned external operation handle device, in the ON / OFF switching operation process, the operability problem that the rotary handle stops in the middle between the ON and OFF positions has been improved. As a means for enabling trip display at the position where the rotary handle is stopped, a roller and a biasing spring are used from a direction perpendicular to the moving direction of the slide base with cam portions formed on the left and right side edges of the slide base interposed therebetween. A configuration in which a notch mechanism for applying pressure is additionally provided has been proposed earlier by the same applicant as the present invention (see Patent Document 1).

次に、配線用遮断器（オートブレーカ）に適用した前記の外部操作ハンドル装置を例に、その構成を図５〜図８で説明する。図において、１は回路遮断器、２は回路遮断器１に組付けた外部操作ハンドル装置である。ここで、回路遮断器１は、ケース１ａに固定接触子１ｂ、可動接触子１ｃ、反転動作式のトグルリンク機構からなる開閉機構部１ｄ、該開閉機構部１ｄに連繋してケース１ａの頂部に配したロッカーハンドル１ｅ、および過電流引外し装置１ｆなどを装備した構成になる。
かかる回路遮断器１の開閉動作は周知の通りであり、ロッカーハンドル１ｅを図示のＯＮ位置から左側に倒してＯＦＦ位置に切換えると開閉機構部１ｄが反転動作し、その開閉ばねの付勢を受けて可動接触子１ｃが開極動作する。また、主回路に過電流が流れて過電流引外し装置１ｆが作動すると開閉機構部１ｄがトリップ動作し、これに従動して可動接触子１ｃが開極して電流を自動遮断する。なお、このトリップ動作により、ロッカーハンドル１ｅは開閉機構部１ｄのトグルリンク機構に従動してＯＮ位置からＯＦＦ位置との中間位置（トリップ表示位置）に移動して停止する。 Next, the configuration of the external operation handle device applied to the circuit breaker (auto breaker) will be described with reference to FIGS. In the figure, 1 is a circuit breaker, and 2 is an external operation handle device assembled to the circuit breaker 1. Here, the circuit breaker 1 is connected to the case 1a with a fixed contact 1b, a movable contact 1c, an opening / closing mechanism 1d composed of a reverse link toggle mechanism, and connected to the opening / closing mechanism 1d at the top of the case 1a. A rocker handle 1e and an overcurrent trip device 1f are provided.
The opening / closing operation of the circuit breaker 1 is well known, and when the rocker handle 1e is tilted from the ON position to the left side and switched to the OFF position, the opening / closing mechanism portion 1d reverses and receives the bias of the opening / closing spring. Thus, the movable contact 1c is opened. Further, when an overcurrent flows through the main circuit and the overcurrent tripping device 1f is activated, the opening / closing mechanism 1d is tripped, and the movable contact 1c is opened in accordance with this to automatically cut off the current. By this trip operation, the rocker handle 1e is moved by the toggle link mechanism of the opening / closing mechanism 1d to an intermediate position (trip display position) from the ON position to the stop position and stopped.

一方、前記回路遮断器１に適用する外部操作ハンドル装置２は、先記の特許文献１に詳しく述べられているように、本体ベース３にロータリーハンドル４およびスライドベース５を組付けた構成になり、ここでハンドル４は本体ベース３に軸支して後端にターンベース（クランクアーム）４ａおよびピン（クランクピン）４ｂを備えている。また、スライドベース５は、回路遮断器１のロッカーハンドル１ｅの切換方向と平行な向きにスライド可能に案内支持されており、その板面中央にスライド方向と直交する向きに長穴を開口し、この長穴に前記ターンベース４ａのピン４ｂを嵌合してロータリーハンドル４と連繋している。また、スライドベース５には、外部操作ハンドル装置２を回路遮断器１に組付けた状態で、回路遮断器１のケース１ａから突き出したロッカーハンドル１ｅの把手を前後から挟むようにハンドルアーム５ａを形成している。そして、ロータリーハンドル４を手動操作でＯＮ位置からＯＦＦ位置に回すと、ターンベース４ａのピン４ｂを介してスライドベース５が左方向にスライド移動し、ハンドルアーム５ａを介して回路遮断器１のロッカーハンドル１ｅをＯＦＦ位置に切り換える。なお、６はハンドルカバーである。   On the other hand, the external operation handle device 2 applied to the circuit breaker 1 has a structure in which the rotary handle 4 and the slide base 5 are assembled to the main body base 3 as described in detail in the aforementioned Patent Document 1. Here, the handle 4 is pivotally supported by the main body base 3 and includes a turn base (crank arm) 4a and a pin (crank pin) 4b at the rear end. The slide base 5 is slidably guided and supported in a direction parallel to the switching direction of the rocker handle 1e of the circuit breaker 1, and a long hole is opened at the center of the plate surface in a direction perpendicular to the slide direction. The pin 4b of the turn base 4a is fitted in the elongated hole and is connected to the rotary handle 4. The slide base 5 is provided with a handle arm 5a so that the handle of the rocker handle 1e protruding from the case 1a of the circuit breaker 1 is sandwiched from the front and rear in a state where the external operation handle device 2 is assembled to the circuit breaker 1. Forming. When the rotary handle 4 is manually turned from the ON position to the OFF position, the slide base 5 slides to the left via the pin 4b of the turn base 4a, and the rocker of the circuit breaker 1 via the handle arm 5a. The handle 1e is switched to the OFF position. Reference numeral 6 denotes a handle cover.

また、前記スライドベース５の左右側縁には、特許文献１に開示されているカム部，および該カム部にローラを当接して加圧するレバーからなるノッチ機構を備えている。すなわち、図８で詳示するように、スライドベース５の左右両側縁には傾斜カム面５ｂ-1〜５ｂ-5を組み合わせたカム部が形成されており、このカム部を挟んでスライドベース５の左右両側にはローラ（ベアリング）７ａ，レバー７ｂ，付勢バネ７ｃからなるノッチ機構７をヒンジ軸（ナベ小ネジ）７ｄを介して本体ベース４を装着し、付勢ばね７ｃのバネ力でローラ７ａを前記カム面に側方から押圧している。
上記の構成で、回路遮断器１がトリップ動作すると、スライドベース５が回路遮断器のロッカーハンドル１ｅに押され、これに従動してロータリーハンドル４がＯＮ位置から図６に示すＴＲＩＰ位置に移動して回路遮断器のトリップ動作を表示する。
特開２００３−１６９０１号公報 Further, the left and right side edges of the slide base 5 are provided with a notch mechanism including a cam portion disclosed in Patent Document 1 and a lever that presses a roller against the cam portion. That is, as will be described in detail with reference to FIG. 8, cam portions in which inclined cam surfaces 5 b-1 to 5 b-5 are combined are formed on the left and right edges of the slide base 5, and the slide base 5 is sandwiched between the cam portions. A notch mechanism 7 comprising a roller (bearing) 7a, a lever 7b, and an urging spring 7c is mounted on the left and right sides of the main body base 4 via a hinge shaft (pan head screw) 7d, and the spring force of the urging spring 7c is used. The roller 7a is pressed against the cam surface from the side.
With the above configuration, when the circuit breaker 1 trips, the slide base 5 is pushed by the rocker handle 1e of the circuit breaker, and the rotary handle 4 moves from the ON position to the TRIP position shown in FIG. Display the tripping action of the circuit breaker.
JP 2003-16901 A

ところで、前記した従来構成の外部操作ハンドル装置は、回路遮断器のトリップ動作時におけるＴＲＩＰ表示の機能に不安定さがあり、製品によっては回路遮断器のトリップ動作時にハンドル装置のロータリーハンドルがＯＮ位置とＴＲＩＰ位置との中間に停止してしまってトリップ動作を正しく表示できないといった問題がある。
すなわち、外部操作ハンドル装置２に装備したロータリーハンドル４，スライドベース５，ノッチ機構７などの可動部品に作用する摺動摩擦抵抗は製品によってばらつきがあるほか、回路遮断器１のトリップ動作時にロータリーハンドル４をＯＮ位置からＴＲＩＰ位置に移動させるには、スライドベース５の傾斜カム面５ｂ-1に加圧当接しているノッチ機構７のローラ７ａを側方に押し退ける力が必要であり、これが回路遮断器１のロッカーハンドル１ｅに対して負荷荷重となる。このために、回路遮断器１のトリップ動作時にロッカーハンドル１ｅが外部操作ハンドル装置２のスライドベース５を押す力が弱いと、ロータリーハンドル４はＴＲＩＰ表示位置まで移動されずに、その手前で停止してしまうことになる。 By the way, the external operation handle device of the above-described conventional configuration has instability in the function of TRIP display at the time of trip operation of the circuit breaker, and depending on the product, the rotary handle of the handle device is in the ON position at the time of trip operation of the circuit breaker. There is a problem that the trip operation cannot be correctly displayed because it stops in the middle of the TRIP position.
That is, the sliding frictional resistance acting on the movable parts such as the rotary handle 4, the slide base 5 and the notch mechanism 7 provided in the external operation handle device 2 varies depending on the product, and the rotary handle 4 during the trip operation of the circuit breaker 1 Is required to move the roller 7a of the notch mechanism 7 that is in pressure contact with the inclined cam surface 5b-1 of the slide base 5 to the side, and this is a circuit breaker. A load is applied to one rocker handle 1e. For this reason, if the force with which the rocker handle 1e pushes the slide base 5 of the external operation handle device 2 during the trip operation of the circuit breaker 1 is weak, the rotary handle 4 will not move to the TRIP display position, but will stop before that. It will end up.

そこで、本発明の目的は、前記構成の外部操作ハンドル装置について、回路遮断器のトリップ動作時にハンドル装置のロータリーハンドルの停止位置で確実にトリップ表示ができるように改良した回路遮断器の外部操作ハンドル装置を提供することにある。   Therefore, an object of the present invention is to improve the external operation handle of the circuit breaker improved so that the trip display can be reliably performed at the stop position of the rotary handle of the handle device during the trip operation of the circuit breaker. To provide an apparatus.

上記目的を達成するために、本発明によれば、配電盤，制御盤などに装備した回路遮断器を盤外からのハンドル操作で開閉する外部操作ハンドル装置であって、その本体ベースにロータリーハンドル，該ハンドルにターンベースを介して連繋したハンドルアーム付きのスライドベース，およびスライドベースの左右側縁に形成したカム部を挟んでスライドベースの移動方向と直交する方向からローラ，レバー, 付勢ばねを介して加圧力を加えるノッチ機構を装備した構成になり、当該ハンドル装置を回路遮断器に組付けた状態で前記スライドベースのハンドルアームを回路遮断器のロッカーハンドルに係合し、ロータリーハンドルの操作により回路遮断器のロッカーハンドルをＯＮ，ＯＦＦ位置に駆動するようにしたものにおいて、
回路遮断器のトリップ動作時に前記ロータリーハンドルをＴＲＩＰ表示位置に移動させる助勢手段として、回路遮断器のロッカーハンドルをＯＮ位置からＴＲＩＰ位置方向に押圧付勢する補助バネを備えるものとする（請求項１）。 In order to achieve the above object, according to the present invention, there is provided an external operation handle device for opening and closing a circuit breaker equipped in a switchboard, a control panel and the like by a handle operation from the outside of the panel. A slide base with a handle arm connected to the handle via a turn base, and a roller, a lever, and an urging spring from a direction perpendicular to the moving direction of the slide base with a cam portion formed on the left and right side edges of the slide base. The structure is equipped with a notch mechanism for applying pressure via the handle, and the handle arm of the slide base is engaged with the rocker handle of the circuit breaker while the handle device is assembled to the circuit breaker, and the rotary handle is operated. With the one that drives the rocker handle of the circuit breaker to the ON / OFF position,
As an assisting means for moving the rotary handle to the TRIP display position during the trip operation of the circuit breaker, an auxiliary spring for biasing the rocker handle of the circuit breaker from the ON position toward the TRIP position is provided. ).

ここで、前記の補助バネは、回路遮断器の閉極状態でそのロッカーハンドルをＯＮ位置に保持する力よりも小さなバネ荷重に設定し（請求項２）、その補助バネの具体的態様としてハンドル装置の本体ベース側に線材ばねを張架し、該線材ばねにロッカーハンドルの把手部に押し当てて蓄勢させるようにする（請求項３）。   Here, the auxiliary spring is set to a spring load smaller than a force for holding the rocker handle in the ON position when the circuit breaker is closed (Claim 2). A wire spring is stretched on the main body base side of the apparatus, and the wire spring is pressed against the handle portion of the rocker handle to accumulate energy (Claim 3).

上記の構成によれば、回路遮断器の閉極状態では、外部操作ハンドル装置に備えた補助バネが蓄勢されており、そのバネ力がＯＮ位置に停止しているロッカーハンドルを背後から押圧している。なお、補助バネのバネ荷重はロッカーハンドルのＯＮ位置に保持する力よりも小さく設定されているので、回路遮断器の動作に影響することはない。この状態から主回路に過電流が流れて回路遮断器がトリップ動作した際には、開閉機構部の動作に従動してロッカーハンドルをＴＲＩＰ位置に移動させる力と同じ方向に前記補助バネのバネ力が加わることになる。
これにより、外部操作ハンドル装置の可動部（ロータリーハンドル，スライドベースなど）に作用する摺動摩擦抵抗，およびノッチ機構の加圧力に打ち勝ってロータリーハンドルをＯＮ位置からＴＲＩＰ表示位置へ移動してトリップ表示させることができる。 According to the above configuration, in the closed state of the circuit breaker, the auxiliary spring provided in the external operation handle device is stored, and the spring force presses the rocker handle that is stopped at the ON position from behind. ing. In addition, since the spring load of the auxiliary spring is set to be smaller than the force held at the ON position of the rocker handle, the operation of the circuit breaker is not affected. When an overcurrent flows from this state to the main circuit and the circuit breaker trips, the spring force of the auxiliary spring moves in the same direction as the force that moves the rocker handle to the TRIP position following the operation of the opening / closing mechanism. Will be added.
This overcomes the sliding frictional resistance acting on the movable part (rotary handle, slide base, etc.) of the external operation handle device and the pressure applied by the notch mechanism, and moves the rotary handle from the ON position to the TRIP display position to display a trip display. be able to.

以下、本発明の実施の形態を図１〜図４に示す実施例に基づいて説明する。なお、実施例の図中で図５〜図８に対応する部材には同じ符号を付してその説明は省略する。
すなわち、図示実施例の外部操作ハンドル装置２は、図８に示した従来構成と比べて新たに補助バネ８が追加装備されている。ここで、図示例の補助ばね８は線材ばねであり、その線材の両端に形成した丸フックをスライドベース５の左右両側に配置したノッチ機構７のヒンジ軸（ナベ小ネジ）７ｄに嵌合して架け渡している。そして、図１のＯＮ状態では、図示のＯＮ位置に保持されている回路遮断器のロッカーハンドル１ｅが補助バネ８を右側に撓ませてバネを蓄勢している。
ここで、回路遮断器１がトリップ動作すると、その開閉機構部に従動してロッカーハンドル１ｅがＯＮ位置からＴＲＩＰ位置に向けてスライドベース２のハンドルアーム５ａを左側に押すとともに、同時にいままで蓄勢されていた補助バネ８のバネ力がロッカーハンドル１ｅに加わってロッカーハンドルの移動を助勢する。これにより、スライドベース５は傾斜カム面５ｂ-1に当接しているノッチ機構７のローラ７ａを側方に押し退けて、図３に示すＴＲＩＰ位置まで移動して停止する。また、このスライドベース５の動きに連動してロータリーハンドル４が図６に示すＯＮ位置から反時計方向に回動してＴＲＩＰ位置に停止し、この停止位置でロータリーハンドル４がトリップ表示する。 Embodiments of the present invention will be described below based on the examples shown in FIGS. In addition, in the figure of an Example, the same code | symbol is attached | subjected to the member corresponding to FIGS. 5-8, and the description is abbreviate | omitted.
That is, the external operation handle device 2 of the illustrated embodiment is additionally equipped with an auxiliary spring 8 as compared with the conventional configuration shown in FIG. Here, the auxiliary spring 8 in the illustrated example is a wire rod spring, and round hooks formed at both ends of the wire rod are fitted to hinge shafts (pan head small screws) 7d of a notch mechanism 7 disposed on both the left and right sides of the slide base 5. It is handed over. In the ON state of FIG. 1, the rocker handle 1 e of the circuit breaker held at the ON position shown in the figure deflects the auxiliary spring 8 to the right side to store the spring.
Here, when the circuit breaker 1 trips, the rocker handle 1e pushes the handle arm 5a of the slide base 2 to the left side from the ON position toward the TRIP position following the opening / closing mechanism, and at the same time stores energy up to now. The spring force of the auxiliary spring 8 is applied to the rocker handle 1e to assist the movement of the rocker handle. Thus, the slide base 5 pushes the roller 7a of the notch mechanism 7 in contact with the inclined cam surface 5b-1 to the side, moves to the TRIP position shown in FIG. 3, and stops. Further, in conjunction with the movement of the slide base 5, the rotary handle 4 rotates counterclockwise from the ON position shown in FIG. 6 and stops at the TRIP position. At this stop position, the rotary handle 4 displays a trip.

なお、図４はロータリーハンドル４をＯＦＦ位置に回して回路遮断器１を開極させたＯＦＦ状態を表しており、補助バネ８はロッカーハンドル１ｅと干渉せずにバネ力を放勢した状態に保たれている。
また、図示実施例では補助バネ８としてノッチ機構７のヒンジ軸７ｄの間に架け渡した線材バネを用いているが、これに限定されるものではなく、例えば捩じりコイルバネ（トーションバネ），圧縮バネ，あるいは板バネを用いて回路遮断器１のロッカーハンドル１ｅをＯＮ位置からＴＲＩＰ位置に向けて背後から付勢するようにしてもよい。 FIG. 4 shows an OFF state in which the rotary handle 4 is turned to the OFF position to open the circuit breaker 1, and the auxiliary spring 8 releases the spring force without interfering with the rocker handle 1e. It is kept.
In the illustrated embodiment, a wire spring spanned between the hinge shafts 7d of the notch mechanism 7 is used as the auxiliary spring 8. However, the present invention is not limited to this. For example, a torsion coil spring (torsion spring), The rocker handle 1e of the circuit breaker 1 may be urged from behind from the ON position toward the TRIP position using a compression spring or a leaf spring.

本発明実施例の外部操作ハンドル装置の構成図で、ＯＮ状態を表す背面図The rear view showing the ON state in the configuration diagram of the external operation handle device of the embodiment of the present invention 図１の外部操作ハンドル装置を回路遮断器に組付けた状態の側面図The side view of the state which assembled the external operation handle device of Drawing 1 to the circuit breaker 図１に対応したＴＲＩＰ状態を表す図The figure showing the TRIP state corresponding to FIG. 図１に対応したＯＦＦ状態を表す図The figure showing the OFF state corresponding to FIG. 従来の外部操作ハンドル装置を回路遮断器に組付けた状態の側面図Side view of a state in which a conventional external operation handle device is assembled to a circuit breaker 図５の平面図Plan view of FIG. 図５の内部構造を表す側視断面図Side view sectional view showing the internal structure of FIG. 図５における外部操作ハンドル装置の背面図The rear view of the external operation handle apparatus in FIG.

符号の説明Explanation of symbols

１ 回路遮断器
１ｅ ロッカーハンドル
２ 外部操作ハンドル装置
３ 本体ベース
４ ロータリーハンドル
５ スライドベース
５ａ ハンドルアーム
５ｂ-1〜５ｂ-5 カム部の傾斜カム面
７ ノッチ機構
７ａ ローラ
７ｂ レバー
７ｃ 付勢バネ
８ 補助バネ DESCRIPTION OF SYMBOLS 1 Circuit breaker 1e Rocker handle 2 External operation handle apparatus 3 Main body base 4 Rotary handle 5 Slide base 5a Handle arm 5b-1-5b-5 Inclined cam surface of a cam part 7 Notch mechanism 7a Roller 7b Lever 7c Energizing spring 8 Auxiliary Spring

Claims (3)

配電盤，制御盤などに装備した回路遮断器を盤外からのハンドル操作で開閉する外部操作ハンドル装置であって、その本体ベースにロータリーハンドル，該ハンドルにターンベースを介して連繋したハンドルアーム付きのスライドベース，およびスライドベースの左右側縁に形成したカム部を挟んでスライドベースの移動方向と直交する方向からローラ，レバー，付勢ばねを介して加圧力を加えるノッチ機構を装備した構成になり、当該ハンドル装置を回路遮断器に組付けた状態で前記スライドベースのハンドルアームを回路遮断器のロッカーハンドルに係合し、ロータリーハンドルの操作により回路遮断器のロッカーハンドルをＯＮ，ＯＦＦ位置に駆動するようにしたものにおいて、
回路遮断器のトリップ動作時に前記ロータリーハンドルをＴＲＩＰ表示位置に移動させる助勢手段として、回路遮断器のロッカーハンドルをＯＮ位置からＴＲＩＰ位置方向に付勢する補助バネを備えたことを特徴とする回路遮断器の外部操作ハンドル装置。 An external operation handle device that opens and closes a circuit breaker equipped on a switchboard, control panel, etc. by a handle operation from outside the panel, with a rotary handle on the main body base, and a handle arm connected to the handle via a turn base It is equipped with a slide base and a notch mechanism that applies pressure via rollers, levers, and biasing springs from the direction perpendicular to the direction of movement of the slide base across the cam part formed on the left and right edges of the slide base. With the handle device attached to the circuit breaker, the handle arm of the slide base is engaged with the rocker handle of the circuit breaker, and the rocker handle of the circuit breaker is driven to the ON / OFF position by operating the rotary handle. In what I did,
A circuit breaker comprising an auxiliary spring for urging the rocker handle of the circuit breaker from the ON position toward the TRIP position as an assisting means for moving the rotary handle to the TRIP display position during a trip operation of the circuit breaker External handle device for the container. 請求項１に記載の外部操作ハンドル装置において、補助バネのバネ荷重を、回路遮断器の閉極状態でそのロッカーハンドルをＯＮ位置に保持する開閉機構部のバネ力よりも小さく設定したことを特徴とする回路遮断器の外部操作ハンドル装置。 2. The external operation handle device according to claim 1, wherein the spring load of the auxiliary spring is set to be smaller than the spring force of the opening / closing mechanism portion that holds the rocker handle in the ON position in a closed state of the circuit breaker. An external operation handle device for a circuit breaker. 請求項１または２に記載の外部操作ハンドル装置において、その本体ベース側に線材ばねを張架し、該線材ばねにロッカーハンドルの把手部を押し当てて蓄勢させるようにしたことを特徴とする回路遮断器の外部操作ハンドル装置。 3. The external operation handle device according to claim 1, wherein a wire rod spring is stretched on the main body base side, and a handle portion of a rocker handle is pressed against the wire rod spring to accumulate energy. External operation handle device for circuit breaker.
JP2003386151A 2003-11-17 2003-11-17 External circuit handle device for circuit breaker Expired - Fee Related JP4215621B2 (en)

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