JPH0810923Y2 - Multi-pole circuit breaker - Google Patents

Multi-pole circuit breaker

Info

Publication number
JPH0810923Y2
JPH0810923Y2 JP1990013853U JP1385390U JPH0810923Y2 JP H0810923 Y2 JPH0810923 Y2 JP H0810923Y2 JP 1990013853 U JP1990013853 U JP 1990013853U JP 1385390 U JP1385390 U JP 1385390U JP H0810923 Y2 JPH0810923 Y2 JP H0810923Y2
Authority
JP
Japan
Prior art keywords
connecting piece
circuit breaker
unit circuit
pole unit
trigger lever
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.)
Expired - Lifetime
Application number
JP1990013853U
Other languages
Japanese (ja)
Other versions
JPH03104943U (en
Inventor
正一 斉田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nitto Kogyo Corp
Original Assignee
Nitto Kogyo Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nitto Kogyo Corp filed Critical Nitto Kogyo Corp
Priority to JP1990013853U priority Critical patent/JPH0810923Y2/en
Publication of JPH03104943U publication Critical patent/JPH03104943U/ja
Application granted granted Critical
Publication of JPH0810923Y2 publication Critical patent/JPH0810923Y2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【考案の詳細な説明】 (産業上の利用分野) 本考案は、単極ユニット回路遮断器を連結駒を介在さ
せて複数個並列させた多極型回路遮断器に関するもので
ある。
DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a multi-pole type circuit breaker in which a plurality of single-pole unit circuit breakers are arranged in parallel with a connecting piece interposed.

(従来の技術) 回路に過電流が流れたときに可動接触子を引き外し機
構により固定接触子から開離させる機能を備えた単極ユ
ニット回路遮断器を、極数に応じて複数個並列させた多
極型回路遮断器は従来から知られている。
(Prior Art) A plurality of single-pole unit circuit breakers having a function of separating the movable contact from the fixed contact by a trip mechanism when an overcurrent flows in the circuit are arranged in parallel according to the number of poles. A multi-pole type circuit breaker is conventionally known.

このような多極型回路遮断器においては、何れかの単
極ユニット回路遮断器が作動した場合に他の全ての単極
ユニット回路遮断器をこれに連動させて作動させる必要
があり、このために連結駒を相互間に取り付けているの
が普通である。ところが従来の連結駒はその側面に形成
された突起を単極ユニット回路遮断器のケースに形成さ
れた孔に差し込むことによりケースに枢着されているの
で、単極ユニット回路遮断器のケースとその内部に収納
された引き外し機構との間の位置の誤差が大きくなる
と、引き外し機構が作動してもケースに支持された連結
駒に引き外し機構の動きが正確に伝達されず、他の単極
ユニット回路遮断器の作動が遅れたり、はなはだしい場
合には他の単極ユニット回路遮断器が作動しないおそれ
があった。
In such a multi-pole type circuit breaker, when one of the single-pole unit circuit breakers operates, it is necessary to operate all other single-pole unit circuit breakers in conjunction with it. It is usual to attach connecting pieces to each other. However, since the conventional connecting piece is pivotally attached to the case by inserting the protrusion formed on the side surface into the hole formed in the case of the single pole unit circuit breaker, the case of the single pole unit circuit breaker and its If the position error between the trip mechanism stored inside is large, even if the trip mechanism operates, the movement of the trip mechanism is not accurately transmitted to the connecting piece supported by the case, and the other unit does not move. There is a risk that the operation of the pole unit circuit breaker will be delayed or that the other single pole unit circuit breakers will not work if it is not working.

(考案が解決しようとする課題) 本考案は上記したような従来の問題を解決し、単極ユ
ニット回路遮断器の組立時に不可避的に生ずるケースと
その内部に収納された部品との間の位置の誤差に影響さ
れることなく、何れかの単極ユニット回路遮断器が作動
した場合に他の全ての単極ユニット回路遮断器をこれに
連動させて瞬時に作動させることができる多極型回路遮
断器を提供するために完成されたものである。
(Problems to be Solved by the Invention) The present invention solves the above-mentioned conventional problems, and the position between the case and the components housed therein is inevitable when the single-pole unit circuit breaker is assembled. A multi-pole circuit that, when any of the single-pole unit circuit breakers is activated, can operate all other single-pole unit circuit breakers instantly by interlocking with this, without being affected by the error It was completed to provide a circuit breaker.

(課題を解決するための手段) 上記の課題を解決するためになされた本考案は、単極
ユニット回路遮断器を連結駒を介在させて複数個並列さ
せた多極型回路遮断器において、トリガレバーの端面に
突起を形成し、この突起に連結駒の側面の凹部を嵌合さ
せて連結駒を支持させるとともに、クレドルに突設した
ピンが押圧する連結駒の側面のトリガジョイントを、隣
接する単極ユニット回路遮断器のトリガレバーに臨ませ
たことを特徴とするものである。
(Means for Solving the Problems) The present invention made to solve the above problems is a trigger for a multi-pole type circuit breaker in which a plurality of single-pole unit circuit breakers are arranged in parallel with a connecting piece interposed. A protrusion is formed on the end face of the lever, and the concave portion on the side surface of the connecting piece is fitted into this protrusion to support the connecting piece, and the trigger joint on the side surface of the connecting piece pressed by the pin protruding from the cradle It is characterized in that it faces the trigger lever of the unit circuit breaker.

(実施例) 以下に本考案を図示の実施例によって更に詳細に説明
する。
(Example) Hereinafter, the present invention will be described in more detail with reference to an illustrated example.

第1図〜第3図は3個の単極ユニット回路遮断器(2
0)を並列させた実施例の示す図であり、第1図はオン
状態、第2図はトリップ状態を示し、第3図は断面図を
示している。まず単極ユニット回路遮断器(20)につい
て説明すると、(1)はハンドル、(2)はこのハンド
ル(1)に上端を枢着されたフィンガ、(3)はその下
端に固着された可動接点、(4)はケース(5)に固定
された固定接点板に固着された固定接点、(6)はハン
ドル(1)の安定位置を決定するクレドル、(7)はク
レドル(6)の下端を係止しているトリガレバー、
(8)はこのトリガレバー(7)の下端と係合して過電
流時にトリガレバー(7)を作動させるバイメタルであ
る。そしてバイメタル(8)が過電流により変形する
と、トリガレバー(7)が上端のピン(9)を中心とし
て反時計方向に動き、クレドル(6)の下端がトリガレ
バー(7)から外れてバネ(10)の力により第2図の位
置まで動き、これに連動してハンドル(1)がトリップ
位置まで回転するとともに可動接点(3)が固定接点
(4)から開離することは従来の回路遮断器と同様であ
る。
1 to 3 show three single pole unit circuit breakers (2
FIG. 1 is a diagram showing an embodiment in which (0) is arranged in parallel, FIG. 1 shows an ON state, FIG. 2 shows a trip state, and FIG. 3 shows a sectional view. First, the single-pole unit circuit breaker (20) will be described. (1) is a handle, (2) is a finger whose upper end is pivotally attached to this handle (1), and (3) is a movable contact fixed to its lower end. , (4) is a fixed contact fixed to a fixed contact plate fixed to the case (5), (6) is a cradle that determines a stable position of the handle (1), and (7) is a lower end of the cradle (6). Trigger lever locked,
Reference numeral (8) is a bimetal which engages with the lower end of the trigger lever (7) and operates the trigger lever (7) when an overcurrent occurs. When the bimetal (8) is deformed by overcurrent, the trigger lever (7) moves counterclockwise around the pin (9) at the upper end, and the lower end of the cradle (6) comes off the trigger lever (7) and the spring ( It moves to the position shown in Fig. 2 by the force of 10), and in conjunction with this, the handle (1) rotates to the trip position and the movable contact (3) separates from the fixed contact (4). It is the same as the container.

本考案においては、このような単極ユニット回路遮断
器(20)のトリガレバー(7)の上部端面の両側に第3
図、第4図に示されるような突起(11)が形成してあ
り、この突起(11)に連結駒(12)が取付けられてい
る。すなわち連結駒(12)は第5図に示されるように板
体の両側面に凹部(13)と断面がく字状のトリガジョイ
ント(14)を突設したものであり、この凹部(13)をト
リガレバー(7)の突起(11)に嵌合させることによ
り、トリガレバー(7)に支持されている。また単極ユ
ニット回路遮断器(20)のケース(5)には連結駒(1
2)を差し込むための透孔(15)が透設されており、ト
リガレバー(7)に支持させた連結駒(12)はその反対
側が隣接する単極ユニット回路遮断器(20)のケース
(5)の透孔(15)からその内部に延びる構造となって
いる。そして連結駒(12)の反対側のトリガジョイント
(14)は、第1図および第2図に示すように隣接する単
極ユニット回路遮断器(20)のトリガレバー(7)のバ
イメタル(8)とは反対側の側面に臨んでいる。
According to the present invention, the third end is provided on both sides of the upper end face of the trigger lever (7) of the circuit breaker (20) for a single pole unit.
A projection (11) as shown in FIGS. 4 and 5 is formed, and a connecting piece (12) is attached to this projection (11). That is, as shown in FIG. 5, the connecting piece (12) is formed by projecting a recess (13) and a trigger joint (14) having a V-shaped cross section on both sides of the plate, and the recess (13) is formed. It is supported by the trigger lever (7) by being fitted into the protrusion (11) of the trigger lever (7). The case (5) of the single pole unit circuit breaker (20) has a connecting piece (1
A through hole (15) for inserting the 2) is provided therethrough, and the connecting piece (12) supported by the trigger lever (7) has a case (20) that is adjacent to the opposite side of the connecting piece (12). The structure extends from the through hole (15) of 5) to the inside. The trigger joint (14) on the opposite side of the connecting piece (12) is a bimetal (8) of the trigger lever (7) of the adjacent single pole unit circuit breaker (20) as shown in FIGS. 1 and 2. It faces the side opposite to.

なお、クレドル(6)の側面にはピン(16)が突設さ
れており、第2図に示すようにクレドル(6)が作動し
たときにこのピン(16)が連結駒(12)のトリガジョイ
ント(14)の左側に当たり、連結駒(12)を凹部(13)
を中心として反時計方向に強制的に回転させる構造とな
っている。また第6図に示すように、両側の単極ユニッ
ト回路遮断器(20)のケース(5)に形成された透孔
(15)には、透孔(15)の3辺に係合する爪(17)付き
の蓋(18)を弾性的に嵌合させ、透孔(15)を塞いであ
る。
A pin (16) is provided on the side surface of the cradle (6) so that when the cradle (6) operates, the pin (16) triggers the connecting piece (12). It hits the left side of the joint (14) and the connecting piece (12) is recessed (13).
The structure is forcibly rotated counterclockwise around. Further, as shown in FIG. 6, the through hole (15) formed in the case (5) of the single pole unit circuit breaker (20) on both sides has a claw that engages with three sides of the through hole (15). The through hole (15) is closed by elastically fitting the lid (18) with the (17).

(作用) このように構成された本考案の多極型回路遮断器は、
独立に製造された単極ユニット回路遮断器(20)を極数
に応じて複数個並列に組み合わせて使用されるものであ
り、その組み合わせの際に連結駒(12)を相互間に介在
させて隣接する単極ユニット回路遮断器を連結してい
る。
(Operation) The multi-pole type circuit breaker of the present invention configured as described above is
A plurality of independently produced single-pole unit circuit breakers (20) are combined in parallel according to the number of poles, and a connecting piece (12) is interposed between them in the combination. Adjacent single pole unit circuit breakers are connected.

そしていずれかの単極ユニット回路遮断器(20)のト
リガレバー(7)が過電流によりピン(9)を中心とし
て反時計方向に動かされると、クレドル(6)の下端が
トリガレバー(7)から外れてバネ(10)の力により第
2図の位置まで動き、トリップ状態となって可動接点
(3)が固定接点(4)から開離することとなる。これ
と同時にトリガレバー(7)の端面の突起(11)に凹部
(13)を嵌合させて支持された連結駒(12)は、クレド
ル(6)のピン(16)により反時計方向に強制的に回転
され、連結駒(12)のトリガジョイント(14)が隣接す
る単極ユニット回路遮断器(20)のトリガレバー(7)
を反時計方向に強制的に回転させる。この結果、隣接す
る単極ユニット回路遮断器(20)も同時に作動して回路
を遮断することとなり、全部の極につき回路が遮断され
ることとなる。
When the trigger lever (7) of one of the single-pole unit circuit breakers (20) is moved counterclockwise around the pin (9) due to overcurrent, the lower end of the cradle (6) is moved to the trigger lever (7). 2 and moves to the position shown in FIG. 2 by the force of the spring (10), and the movable contact (3) is separated from the fixed contact (4) in a trip state. At the same time, the connecting piece (12) supported by fitting the recess (13) into the projection (11) on the end face of the trigger lever (7) is forced counterclockwise by the pin (16) of the cradle (6). Lever (7) of the single-pole unit circuit breaker (20) that is rotated in a horizontal direction and the trigger joint (14) of the connecting piece (12) is adjacent
Forcibly rotate counterclockwise. As a result, the adjacent single-pole unit circuit breakers (20) also operate at the same time to cut off the circuit, and the circuit is cut off for all the poles.

このように本考案の多極型回路遮断器の作動も従来の
多極型回路遮断器と基本的に変わるところはないが、本
考案においては連結駒(12)がトリガレバー(7)の突
起(11)に支持されており、その動きはケース(5)と
は無関係であるから、ケース(5)とその内部部品との
間に多少の位置の誤差があったとしても、連結駒(12)
にはその影響が全く及ばない。この結果、本考案の連結
駒(12)はケース(5)に連結駒(12)を支持させてい
た従来のものに比較して、連結駒(12)に対するクレド
ル(6)からの運動の伝達をより正確に行うことができ
る。このため、本考案においては他の単極ユニット回路
遮断器(20)の作動に遅れや、作動不良等を確実に防止
することができる。
As described above, the operation of the multi-pole type circuit breaker of the present invention is basically the same as that of the conventional multi-pole type circuit breaker, but in the present invention, the connecting piece (12) is the protrusion of the trigger lever (7). Since it is supported by (11) and its movement is unrelated to the case (5), even if there is some positional error between the case (5) and its internal parts, the connecting piece (12 )
Is not affected at all. As a result, the connecting piece (12) of the present invention transmits the motion from the cradle (6) to the connecting piece (12) as compared with the conventional one in which the case (5) supports the connecting piece (12). Can be done more accurately. Therefore, in the present invention, it is possible to surely prevent the delay of the operation of the other single-pole unit circuit breaker (20) and the malfunction thereof.

(考案の効果) 本考案は以上に説明したように、連結駒をトリガレバ
ーに支持させたのでケースとその内部に収納された部品
との間の位置の誤差に影響されることがなく連結駒を正
確に動かすことができ、過電流によって何れかの単極ユ
ニット回路遮断器が作動した場合には他の全ての単極ユ
ニット回路遮断器をこれに連動させて瞬時に作動させる
ことができるものである。よって本考案は従来の問題点
を一掃した多極型回路遮断機として、その実用的価値は
極めて大きいものである。
(Effect of the Invention) As described above, according to the present invention, since the connecting piece is supported by the trigger lever, the connecting piece is not affected by the positional error between the case and the parts housed therein. That can be moved accurately, and if any one-pole unit circuit breaker is activated due to overcurrent, all other one-pole unit circuit breakers can be instantly activated by interlocking with it. Is. Therefore, the present invention has an extremely great practical value as a multi-pole type circuit breaker that eliminates the conventional problems.

【図面の簡単な説明】[Brief description of drawings]

第1図は本考案の実施例をオン状態で示す一部切欠正面
図、第2図はオフ状態で示す一部切欠正面図、第3図は
断面図、第4図は分解斜視図、第5図は連結駒を示す斜
視図、第6図は全体の外観を示す斜視図である。 (7):トリガレバー、(11):突起、(12):連結
駒、(13):凹部、(14):トリガジョイント、(2
0):単極ユニット回路遮断器
1 is a partially cutaway front view showing an embodiment of the present invention in an ON state, FIG. 2 is a partially cutaway front view shown in an OFF state, FIG. 3 is a sectional view, FIG. 4 is an exploded perspective view, FIG. 5 is a perspective view showing the connecting piece, and FIG. 6 is a perspective view showing the overall appearance. (7): Trigger lever, (11): Protrusion, (12): Connecting piece, (13): Recess, (14): Trigger joint, (2
0): Single pole unit circuit breaker

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】単極ユニット回路遮断器(20)を連結駒
(12)を介在させて複数個並列させた多極型回路遮断器
において、トリガレバー(7)の端面に突起(11)を形
成し、この突起(11)に連結駒(12)の側面の凹部(1
3)を嵌合させて連結駒(12)を支持させるとともに、
クレドル(6)に突設したピン(16)が押圧する連結駒
(12)の側面のトリガジョイント(14)を、隣接する単
極ユニット回路遮断器(20)のトリガレバー(7)に臨
ませたことを特徴とする多極型回路遮断器。
1. A multi-pole type circuit breaker in which a plurality of single-pole unit circuit breakers (20) are arranged in parallel with a connecting piece (12) interposed, and a projection (11) is provided on an end face of a trigger lever (7). The projection (11) is formed with a concave portion (1) on the side surface of the connecting piece (12).
3) is fitted to support the connecting piece (12) and
The trigger joint (14) on the side of the connecting piece (12) pressed by the pin (16) protruding from the cradle (6) faces the trigger lever (7) of the adjacent single-pole unit circuit breaker (20). A multi-pole type circuit breaker characterized in that
JP1990013853U 1990-02-15 1990-02-15 Multi-pole circuit breaker Expired - Lifetime JPH0810923Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990013853U JPH0810923Y2 (en) 1990-02-15 1990-02-15 Multi-pole circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990013853U JPH0810923Y2 (en) 1990-02-15 1990-02-15 Multi-pole circuit breaker

Publications (2)

Publication Number Publication Date
JPH03104943U JPH03104943U (en) 1991-10-30
JPH0810923Y2 true JPH0810923Y2 (en) 1996-03-29

Family

ID=31517243

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990013853U Expired - Lifetime JPH0810923Y2 (en) 1990-02-15 1990-02-15 Multi-pole circuit breaker

Country Status (1)

Country Link
JP (1) JPH0810923Y2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2866152B1 (en) * 2004-02-10 2006-03-17 Schneider Electric Ind Sas MULTIPOLE CIRCUIT BREAKER WITH UNIPOLAR CUT-OFF BLOCKS
JP5328619B2 (en) * 2009-06-05 2013-10-30 日東工業株式会社 Circuit breaker for multipolar wiring

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56114246A (en) * 1980-02-15 1981-09-08 Fuji Electric Co Ltd Breaker

Also Published As

Publication number Publication date
JPH03104943U (en) 1991-10-30

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