JPH0728672Y2 - Circuit breaker - Google Patents

Circuit breaker

Info

Publication number
JPH0728672Y2
JPH0728672Y2 JP3304888U JP3304888U JPH0728672Y2 JP H0728672 Y2 JPH0728672 Y2 JP H0728672Y2 JP 3304888 U JP3304888 U JP 3304888U JP 3304888 U JP3304888 U JP 3304888U JP H0728672 Y2 JPH0728672 Y2 JP H0728672Y2
Authority
JP
Japan
Prior art keywords
lever
mechanism frame
circuit breaker
trip
opening
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
JP3304888U
Other languages
Japanese (ja)
Other versions
JPH01137049U (en
Inventor
良明 松本
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric 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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP3304888U priority Critical patent/JPH0728672Y2/en
Publication of JPH01137049U publication Critical patent/JPH01137049U/ja
Application granted granted Critical
Publication of JPH0728672Y2 publication Critical patent/JPH0728672Y2/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〕 この考案は回路遮断器、特にトリップ時のレバーの衝突
による機構フレームの変形を防止するものである。
DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention is intended to prevent the deformation of the mechanism frame due to the collision of the circuit breaker, especially the lever at the time of trip.

〔従来の技術〕[Conventional technology]

従来の回路遮断器を第3図乃至第6図について説明す
る。第3図はオン状態を示す縦断側面図、第4図はトリ
ップ時の可動子開離状態を示す一部破断側面図、第5図
は第4図の部分拡大斜視図、第6図は第5図の縦断側面
図である。図において、(1)はベース(1a)とカバー
(1b)とからなる遮断器ケース、(2)はベース(1a)
に固定した固定子で、固定接点(2a)を有している。
(3)はベース(1a)に固定される機構フレームで、両
側板(3a),(3a)と両側板連結部(3b)を有してい
る。(4)は機構フレーム(3)の突部(3c)を支点と
して回動する操作ハンドル、(5)は機構フレーム
(3)に取付けられた開閉操作機構で、上リンク(5a)
と下リンク(5b)と引きばね(5c)などからなってい
る。(6)は開閉操作機構(5)により作動される可動
子で、可動接点(6a)を有している。(7)は機構フレ
ーム(3)に回転可能に支持されるトリップバーで、駆
動部(7a)を有している。(8)は機構フレーム(3)
に回転可能に支持される掛金で、駆動部(7a)と係合す
る作動片(8a)を有すると共に機構フレーム(3)の上
端に係止した状態で図示しないバネにより常時時計方向
に付勢されている。(9)は機構フレーム(3)に回転
可能に支持されるラッチで、掛金(8)に係脱可能に係
合している。(10)はひねりばねからなる併用ばねで、
コイル部(10a)が機構フレーム(3)に係止される状
態で一方のアーム部(10b)がトリップバー(7)の係
合突片(7b)に係合されかつ他方のアーム部(10c)が
ラッチ(9)に係止される。(11)は機構フレーム
(3)にレバーピン(12)により回転可能に支持される
レバーで、トリップ時にラッチ(9)から解放されて開
閉操作機構(5)を開放作動する。(13)は電磁引外し
機構の電磁石で、そのプランジャー(図示せず)がトリ
ップバー(7)に係合している。(14)は熱動引外し機
構のバイメタルで、その調整ねじ(14a)がトリップバ
ー(7)に当接している。
A conventional circuit breaker will be described with reference to FIGS. FIG. 3 is a vertical sectional side view showing an ON state, FIG. 4 is a partially cutaway side view showing a movable element opening state at the time of trip, FIG. 5 is a partially enlarged perspective view of FIG. 4, and FIG. It is a vertical side view of FIG. In the figure, (1) is a circuit breaker case consisting of a base (1a) and a cover (1b), and (2) is a base (1a).
It is a stator fixed to and has a fixed contact (2a).
(3) is a mechanism frame fixed to the base (1a) and has both side plates (3a), (3a) and both side plate connecting portions (3b). (4) is an operation handle that rotates around the protrusion (3c) of the mechanism frame (3) as a fulcrum, and (5) is an opening / closing operation mechanism attached to the mechanism frame (3), which is an upper link (5a).
And lower link (5b) and tension spring (5c). (6) is a mover operated by the opening / closing operation mechanism (5) and has a movable contact (6a). (7) is a trip bar rotatably supported by the mechanism frame (3), and has a drive section (7a). (8) is a mechanical frame (3)
A latch that is rotatably supported by the actuator has an operating piece (8a) that engages with the drive section (7a), and is always urged clockwise by a spring (not shown) in a state of being locked to the upper end of the mechanism frame (3). Has been done. Reference numeral (9) is a latch rotatably supported by the mechanism frame (3), which is removably engaged with the latch (8). (10) is a combined spring consisting of a twist spring,
One arm portion (10b) is engaged with the engaging protrusion (7b) of the trip bar (7) while the coil portion (10a) is locked to the mechanism frame (3), and the other arm portion (10c). ) Is locked in the latch (9). Reference numeral (11) is a lever rotatably supported by the mechanism frame (3) by a lever pin (12), which is released from the latch (9) at the time of trip and opens and closes the opening / closing operation mechanism (5). (13) is an electromagnet of the electromagnetic tripping mechanism, and its plunger (not shown) is engaged with the trip bar (7). (14) is a bimetal of the thermal tripping mechanism, and its adjusting screw (14a) is in contact with the trip bar (7).

第3図に示すオン状態では、併用ばね(10)によりトリ
ップバー(7)がストッパー(15)に当接したリセット
位置に付勢されると共に、ラッチ(9)が掛金(8)と
係合する方向に付勢されている。また、この時ラッチ
(9)にレバー(11)が係合されている。
In the ON state shown in FIG. 3, the combined spring (10) urges the trip bar (7) to the reset position where it abuts the stopper (15), and the latch (9) engages with the latch (8). Is urged to At this time, the lever (11) is engaged with the latch (9).

このような回路遮断器では、操作ハンドル(4)の操作
により開閉操作機構(5)を介して可動子(6)が作動
され、両接点(2a),(6a)が開閉する。そして、第3
図に示すオン状態において過電流が流れると、バイメタ
ル(14)が加熱されて湾曲し調整ねじ(14a)で押圧さ
れてトリップバー(7)が併用ばね(10)に抗して回動
するし、あるいは第3図に示すオン状態において大電流
が流れると電磁石(13)のプランジャーが吸引付勢され
てトリップバー(7)が併用ばね(10)に抗して回動す
るので、このトリップバー(7)の時計方向の回動によ
り、駆動部(7a)が作動片(8a)を押して掛金(8)が
バネに抗して反時計方向に回転すると、第4図に示すよ
うにラッチ(9)が掛金(8)から外れて併用ばね(1
0)により反時計方向に回転し、レバー(11)がラッチ
(9)から外れて開閉操作機構(5)を開放作動し、可
動子(6)が開離する。
In such a circuit breaker, the mover (6) is operated by the operation of the operation handle (4) via the opening / closing operation mechanism (5), and the contacts (2a), (6a) are opened and closed. And the third
When an overcurrent flows in the ON state shown in the figure, the bimetal (14) is heated and curved and pressed by the adjusting screw (14a), and the trip bar (7) rotates against the combined spring (10). Alternatively, when a large current flows in the ON state shown in FIG. 3, the plunger of the electromagnet (13) is attracted by force and the trip bar (7) rotates against the combined spring (10). When the bar (7) rotates clockwise, the drive part (7a) pushes the actuating piece (8a) and the latch (8) rotates counterclockwise against the spring, as shown in FIG. (9) is disengaged from the latch (8) and the combined spring (1
The lever (11) is disengaged from the latch (9) to open the open / close operation mechanism (5), and the mover (6) is opened.

〔考案が解決しようとする課題〕[Problems to be solved by the device]

上記のような従来の回路遮断器では、トリップ時のレバ
ー(11)の回転は第4図乃至第6図に示すようにレバー
(11)の一部(11a)が機構フレーム(3)の両側板連
結部(3b)に衝突して受け止められるので、このレバー
(11)による衝撃力が両側板連結部(3b)の厚み方向
(矢印(16)で示す方向)に掛かり、機構フレーム
(3)が変形するという問題点があった。
In the conventional circuit breaker as described above, when the lever (11) is rotated during a trip, a part (11a) of the lever (11) is located on both sides of the mechanism frame (3) as shown in FIGS. Since it collides with and is received by the plate connecting portion (3b), the impact force of this lever (11) is applied in the thickness direction (the direction indicated by the arrow (16)) of the plate connecting portions (3b) on both sides, and the mechanism frame (3). There was a problem that was deformed.

この考案はかかる問題点を解決するためになされたもの
で、レバーの衝撃力が機構フレームの両側板連結部の幅
方向に掛かるようにすることにより簡単な構造で機構フ
レームのレバーの衝撃力による変形が防止できる回路遮
断器を得ることを目的とする。
The present invention has been made to solve such a problem, and the impact force of the lever is applied in the width direction of both side plate connecting portions of the mechanism frame, so that the impact force of the lever of the mechanism frame has a simple structure. An object is to obtain a circuit breaker capable of preventing deformation.

〔課題を解決するための手段〕[Means for Solving the Problems]

この考案に係る回路遮断器は、レバーに突起を設け、レ
バーの回転による衝撃力が前記突起により機構フレーム
の両側板連結部の幅方向に掛かるようにしたものであ
る。
In the circuit breaker according to the present invention, the lever is provided with a projection, and the impact force due to the rotation of the lever is applied by the projection in the width direction of the side plate connecting portion of the mechanism frame.

〔作用〕[Action]

この考案においては、トリップ時にレバーの突起が機構
フレームの両側板連結部に衝突して受け止められるの
で、レバーによる衝撃力は両側板連結部の幅方向に掛か
る。
In this invention, since the protrusion of the lever collides with and is received by both side plate connecting portions of the mechanism frame during a trip, the impact force of the lever is applied in the width direction of the both side plate connecting portions.

〔考案の実施例〕[Example of device]

この考案の一実施例を第1図、第2図について説明す
る。第1図は要部の部分拡大図で第5図と同じ図、第2
図は第1図の縦断側面図であり、前記従来のものと同一
または相当部分には同一符号を付して説明を省略する。
図において、(17)はレバー(11)に設けた突起で、ト
リップ時にレバー(11)が回転したときその下面(17
a)が機構フレーム(3)の両側板連結部(3b)の上面
(301)に衝突するようになっている。
An embodiment of this invention will be described with reference to FIGS. FIG. 1 is a partially enlarged view of the main part, which is the same as FIG.
The drawing is a vertical side view of FIG. 1, and the same or corresponding parts as those of the conventional device are designated by the same reference numerals and the description thereof will be omitted.
In the figure, (17) is a protrusion provided on the lever (11), and when the lever (11) rotates during a trip, its lower surface (17)
The a) collides with the upper surface (301) of the side plate connecting portion (3b) of the mechanism frame (3).

このようにレバー(11)に突起(17)を設けておくと、
トリップ時にレバー(11)が回転するときその下面(17
a)がフレーム両側板連結部(3b)の上面(301)に衝突
するので、レバー(11)による衝撃力は両側板連結部
(3b)の幅方向(矢印(18)で示す方向)に掛かる。よ
って、機構フレーム(3)は変形しない。
When the protrusion (17) is provided on the lever (11) in this way,
When the lever (11) rotates during a trip, its lower surface (17
Since a) collides with the upper surface (301) of the frame both side plate connecting part (3b), the impact force by the lever (11) is applied in the width direction of the both side plate connecting part (3b) (direction shown by arrow (18)). . Therefore, the mechanism frame (3) does not deform.

〔考案の効果〕[Effect of device]

以上のように、この考案によればレバーの衝撃力が機構
フレームの両側板連結部の幅方向に掛かるので、レバー
に突起を設けるという簡単な構造で機構フレームのレバ
ーの衝撃力による変形が防止できるという効果がある。
As described above, according to this invention, since the impact force of the lever is applied in the width direction of the both side plate connecting portions of the mechanism frame, the deformation of the mechanism frame due to the impact force of the lever is prevented by the simple structure of providing the protrusion on the lever. The effect is that you can do it.

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

第1図はこの考案の一実施例を示す要部の部分拡大図、
第2図は第1図の縦断側面図、第3図は従来のものを示
すオン状態の縦断側面図、第4図はトリップ状態を示す
一部破断側面図、第5図は第4図の部分拡大斜視図、第
6図は第5図の縦断側面図である。 図において、(1)は遮断器ケース、(2a),(6a)は
両接点、(3)は機構フレーム、(3a),(3a)はフレ
ーム両側板、(3b)はフレーム両側板連結部、(5)は
開閉操作機構、(11)はレバー、(13),(14)は自動
引外し装置、(17)は突起である。 なお、各図中同一符号は同一または相当部分を示す。
FIG. 1 is a partially enlarged view of an essential part showing an embodiment of the present invention,
2 is a vertical side view of FIG. 1, FIG. 3 is a vertical side view of a conventional one in an ON state, FIG. 4 is a partially cutaway side view showing a trip state, and FIG. FIG. 6 is a partially enlarged perspective view, and FIG. 6 is a vertical side view of FIG. In the figure, (1) is a circuit breaker case, (2a) and (6a) are both contacts, (3) is a mechanical frame, (3a) and (3a) are both side plates of the frame, (3b) is a connecting part of both side plates of the frame. , (5) is an opening / closing operation mechanism, (11) is a lever, (13) and (14) are automatic trip devices, and (17) is a protrusion. In the drawings, the same reference numerals indicate the same or corresponding parts.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 【請求項1】両接点を開閉させる開閉操作機構と、この
開閉操作機構を両側板間に保持しかつ遮断器ケースに設
置される機構フレームと、この機構フレームに回転可能
に支持されかつトリップ時に自動引外し装置から解放さ
れて前記開閉操作機構を開放動作させるレバーとを備
え、トリップ時における前記レバーの回転を前記機構フ
レームの両側板連結部で受け止めるようにした回路遮断
器において、 前記レバーに突起を設け、前記レバーの回転による衝撃
力が前記突起により前記両側板連結部の幅方向に掛かる
ようにしたことを特徴とする回路遮断器。
1. An opening / closing operation mechanism for opening and closing both contacts, a mechanism frame which holds the opening / closing operation mechanism between both side plates and is installed in a breaker case, and a mechanism frame rotatably supported by the mechanism frame and at the time of trip. A circuit breaker comprising: a lever that is released from an automatic tripping device to open the opening / closing operation mechanism, and the rotation of the lever at the time of trip is received by both side plate connection parts of the mechanism frame. A circuit breaker, wherein a projection is provided, and an impact force due to the rotation of the lever is applied by the projection in the width direction of the both side plate connecting portions.
JP3304888U 1988-03-11 1988-03-11 Circuit breaker Expired - Lifetime JPH0728672Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3304888U JPH0728672Y2 (en) 1988-03-11 1988-03-11 Circuit breaker

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3304888U JPH0728672Y2 (en) 1988-03-11 1988-03-11 Circuit breaker

Publications (2)

Publication Number Publication Date
JPH01137049U JPH01137049U (en) 1989-09-19
JPH0728672Y2 true JPH0728672Y2 (en) 1995-06-28

Family

ID=31259684

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3304888U Expired - Lifetime JPH0728672Y2 (en) 1988-03-11 1988-03-11 Circuit breaker

Country Status (1)

Country Link
JP (1) JPH0728672Y2 (en)

Also Published As

Publication number Publication date
JPH01137049U (en) 1989-09-19

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