JP2950486B2 - Circuit breaker - Google Patents
Circuit breakerInfo
- Publication number
- JP2950486B2 JP2950486B2 JP12561992A JP12561992A JP2950486B2 JP 2950486 B2 JP2950486 B2 JP 2950486B2 JP 12561992 A JP12561992 A JP 12561992A JP 12561992 A JP12561992 A JP 12561992A JP 2950486 B2 JP2950486 B2 JP 2950486B2
- Authority
- JP
- Japan
- Prior art keywords
- link
- shaft
- handle
- circuit breaker
- width
- 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
Links
Landscapes
- Breakers (AREA)
Description
【発明の属する技術分野】本件の発明は、いわゆる遅入
れ式の回路遮断器の、リンク機構の組立作業性と遮断性
能の改善に及びコストの低減に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in workability and breaking performance of a link mechanism of a so-called slow-insertion type circuit breaker and to a reduction in cost.
【0002】[0002]
【従来の技術】従来、このタイプの回路遮断器の機構は
第4図及び第5図に示すようなものであった。2. Description of the Related Art Conventionally, the mechanism of a circuit breaker of this type is as shown in FIGS.
【0003】図において1は図示しないフレームに固定
されたハンドル軸、2はハンドル軸1に回動自在に軸支
されるハンドル、3はハンドル軸1を中心にしてハンド
ル2に一体的にON側、OFF側に回動する第1のリン
クで、本例ではハンドル2と一体に成形されている。In FIG. 1, reference numeral 1 denotes a handle shaft fixed to a frame (not shown), 2 denotes a handle rotatably supported by the handle shaft 1, and 3 denotes an ON side integrally with the handle 2 about the handle shaft 1. , A first link that turns to the OFF side, and is formed integrally with the handle 2 in this example.
【0004】5は第2のリンクで、第2のリンクは本例
では、第3図に示すが如くコの字に折曲げられ、一端を
軸部6、他端を軸部7としたものを使用しているが、第
8図の如く軸6',7'とリンク部5'を別売品で構成し
たものでも良い。[0005] Reference numeral 5 denotes a second link. In this embodiment, the second link is bent in a U-shape as shown in FIG. 3, and one end has a shaft portion 6 and the other end has a shaft portion 7. However, as shown in FIG. 8, the shafts 6 'and 7' and the link portion 5 'may be formed as optional items.
【0005】第2のリンク5の一端の軸部6は、第1の
リンク3の回動側の端部の軸穴4に回動自在に軸支さ
れ、他端の軸部7は押え板16の軸穴14に軸支される
と共に、図示されないフレームにハンドル軸1に対して
遠近方向に設けられたスライド溝8に摺動自在に組合わ
されている。The shaft 6 at one end of the second link 5 is rotatably supported by the shaft hole 4 at the end on the rotating side of the first link 3, and the shaft 7 at the other end is a holding plate. The shaft is supported by 16 shaft holes 14 and is slidably combined with a slide groove 8 provided on a frame (not shown) in a direction far from the handle shaft 1.
【0006】ここでフレームとは、第9図のように軸受
28や器体29が組合わされた動かないものを総称して
言い、ハンドル軸,スライド溝,ガイド溝等は軸受・器
体のいずれに形成されていても良い。[0006] Here, the frame is a generic term for a non-movable body in which the bearing 28 and the body 29 are combined as shown in FIG. 9. The handle shaft, the slide groove, the guide groove and the like are any of the bearing and the body. May be formed.
【0007】9は押え板16の一端13との係合段部1
2を有し、過電流検出バイメタル10等の異常検出素子
等の付勢により、軸11を中心として前述の係合を引き
外し方向に回動する引き外し杆である。Reference numeral 9 denotes an engagement step portion 1 with one end 13 of the holding plate 16.
2 is a tripping rod which rotates in the direction of disengaging the above-mentioned engagement about the shaft 11 by the urging of an abnormality detecting element such as the overcurrent detecting bimetal 10 or the like.
【0008】16は、押え板で、一端13は前述の通り
引き外し杆9の係合段部に係合し、他端側には前述の軸
穴14と、クロスバー17の押え部15を有している。
なお、図では一端13より軸穴14,押え部15の順で
配置してあるが、押え部15,軸穴14の順に配置され
ていても良い。Reference numeral 16 denotes a holding plate. One end 13 is engaged with the engaging step of the tripping rod 9 as described above, and the shaft hole 14 and the holding portion 15 of the cross bar 17 are provided at the other end. Have.
In the drawing, the shaft hole 14 and the holding portion 15 are arranged in this order from the one end 13, but the holding portion 15 and the shaft hole 14 may be arranged in this order.
【0009】クロスバー17は、可動接点板19と前記
押え板16の押え部15の間に、フレームに設けられた
ガイド溝26内を移動可能に取り付けられ、前記第一の
リンク,第2のリンクの回動に伴い、押え板により可動
接点板19を接点20,21が開離する方向に常時付勢
するばね18に抗して、接点20,21が閉接する方向
に押圧すると共に、その反力により押え板16の押え部
15を持ち上げ付勢し、引き外し杆9の係合段部12を
支点として押え板の軸穴14をてこ状に持ち上げ付勢す
るから、第2のリンク5の軸部7を、スライド溝8に添
ってハンドル軸1の遠い方から近い方に持ち上げ付勢す
ることになる。The crossbar 17 is mounted between the movable contact plate 19 and the holding portion 15 of the holding plate 16 so as to be movable in a guide groove 26 provided in the frame. With the rotation of the link, the movable contact plate 19 is pressed against the spring 18 which constantly biases the movable contact plate 19 in the direction in which the contacts 20 and 21 are separated by the pressing plate in the direction in which the contacts 20 and 21 are closed. The pressing portion 15 of the holding plate 16 is lifted and urged by the reaction force, and the shaft hole 14 of the holding plate is lifted and urged in a lever-like manner with the engaging step 12 of the release rod 9 as a fulcrum. Of the handle shaft 1 from the far side to the near side along the slide groove 8 to be urged.
【0010】23は自由端の一端をフレームに設けられ
たばね掛け部24に掛けられ、他端はハンドル2を図の
反時計方向に回動付勢するハンドルばねである。Reference numeral 23 denotes a handle spring for hanging one end of a free end on a spring hook portion 24 provided on the frame, and the other end for biasing the handle 2 to rotate counterclockwise in the drawing.
【0011】以上のように構成された機構において、第
4図はハンドルOFF接点開から、ハンドルを操作し
て、ハンドルON,接点閉側に完全に移行する途中の状
態で、接点20,21がまさに接触したその瞬間を示し
ている。In the mechanism constructed as described above, FIG. 4 shows a state in which the contacts 20 and 21 are completely shifted from the handle OFF contact opening to the handle ON and contact closing side by operating the handle. It shows the very moment of contact.
【0012】第4図の状態からハンドル2の拘束を解く
と、ハンドルばね23の付勢力によりハンドル2は反時
計方向に回転し、ばね18の付勢力により接点20,2
1が開くと共に、ハンドル軸1と第2のリンク5の軸部
7が近づいてOFF安定する。When the handle 2 is released from the state shown in FIG. 4, the handle 2 rotates counterclockwise by the biasing force of the handle spring 23, and the contacts 20, 2 are biased by the biasing force of the spring 18.
When the handle 1 is opened, the handle shaft 1 and the shaft portion 7 of the second link 5 approach each other, and the OFF state is stabilized.
【0013】次に第4図の状態からハンドル2をON
側、すなわち図の時計方向に回動操作すると、第1のリ
ンク3と第2のリンク5の連結部6が、ハンドル軸1と
軸部7を結ぶ線分、すなわち死点に近づくと共に、軸部
7をスライド溝8に添って押し下げ、係合部12,13
を支点として、押え板16をてこ的に更に押し下げ、ク
ロスバー17も更に押し下げられるが、すでに接点2
0,21は接触しているので、クロスバー17の第4図
から下方への超過移動量は可動接点板19がたわんで吸
収する。Next, the handle 2 is turned on from the state shown in FIG.
When the pivoting operation is performed on the side, that is, in the clockwise direction in the figure, the connecting portion 6 of the first link 3 and the second link 5 approaches the line connecting the handle shaft 1 and the shaft portion 7, that is, approaches the dead center. The portion 7 is pushed down along the slide groove 8, and the engagement portions 12 and 13
With the fulcrum as a fulcrum, the holding plate 16 is further pushed down leverage, and the crossbar 17 is pushed down further.
Since 0 and 21 are in contact with each other, the amount of excessive movement of the crossbar 17 downward from FIG. 4 is absorbed by the movable contact plate 19 being bent.
【0014】更にハンドル2が図の時計方向に回転し、
第1のリンク3と第2のリンク5の連結部6がハンドル
軸1と軸7を結ぶ線分より成る死点を超えると、今度は
軸7はクロスバー17が受ける上方向への反力付勢によ
り、ハンドル軸1に近い方に向かって付勢されるから、
第1のリンク3と、第2のリンク5は第4図とは逆くの
字状により大きく折曲がろうとし、連結部6は図の左方
に更に移動しようとするが、フレームに設けられた第5
図の規制部27により移動を制約され、第5図の状態で
ON保持する。なお本例では規制部27は軸部6を規制
しているが、ハンドル2や第1のリンク3の回転を規制
してもよい。Further, the handle 2 rotates clockwise in the figure,
When the connecting portion 6 of the first link 3 and the second link 5 exceeds a dead point formed by a line segment connecting the handle shaft 1 and the shaft 7, the shaft 7 is now subjected to an upward reaction force received by the crossbar 17. By the bias, it is biased toward the handle shaft 1 closer,
The first link 3 and the second link 5 are likely to bend greatly in an inverted letter shape as shown in FIG. 4, and the connecting portion 6 is going to move further to the left in the figure. The fifth
The movement is restricted by the restricting portion 27 shown in the figure, and is kept ON in the state shown in FIG. In this example, the regulating portion 27 regulates the shaft portion 6, but may regulate the rotation of the handle 2 and the first link 3.
【0015】第5図の状態から、過電流などにより引き
外し杆9が11を中心として図の反時計方向に回動すれ
ば、12と13の係合が外れて押え板のてこ規制がなく
なり、押え板16は軸部7を中心として図の反時計方向
に回動して、クロスバー17は下方押圧規制を解かれて
ばね18により接点20,21は開離すると共に、ハン
ドル2はハンドルばね23により図の反時計方向に回動
してOFFリセットする。In the state shown in FIG. 5, if the tripping rod 9 rotates counterclockwise in FIG. 5 around the eleventh due to an overcurrent or the like, the engagement between the levers 12 and 13 is released and the lever is not restricted by the holding plate. The pressing plate 16 is rotated about the shaft 7 in the counterclockwise direction in the figure, the crossbar 17 is released from the downward pressing restriction, the contacts 20 and 21 are separated by the spring 18, and the handle 2 is The spring 23 rotates counterclockwise in FIG.
【0016】[0016]
【従来の技術の問題点】以上のようないわゆる遅入れ式
の回路遮断器において、フレームのスライド溝8の図の
水平方向の巾Wは、第3図の如く第2のリンク5の、端
部28,29が切断されて、バリや変形によりふくれて
いるから、その部分の溝への挿入の関係から、リンク5
軸部の径W1に対してW2の余裕を持たせてあり、場合に
よってはW2は0.数mm程度必要となっている。2. Description of the Related Art In the circuit breaker of the so-called slow-insertion type as described above, the horizontal width W of the slide groove 8 of the frame in the figure as shown in FIG. Since the portions 28 and 29 are cut and bulged due to burrs and deformation, the link 5 is inserted due to the insertion of the portions into the grooves.
Yes Allow extra of W 2 with respect to the diameter W 1 of the shaft portion, the W 2 in some cases zero. A few millimeters are required.
【0017】さて、第2図の状態における係合段部12
と一端13の係合量は、第4図の状態の機能略図第6図
に示す如く、押え板16は係合段部12とクロスバー1
7上で図の左右に移動可能で、その方向の移動を規制し
ているのはスライド溝8と軸7であり、ばね18が押え
板16を持ち上げようとし、ハンドルをON側にすなわ
ち第1のリンク3をハンドル軸を中心として図の時計方
向に回転させようとすると、第2のリンク5の軸部7
は、スライド溝8の巾Wに対して図の左側いっぱいに押
しやられ、したがって係合段部12と一端13の係合量
kは比較的深くなる。The engagement step 12 in the state shown in FIG.
As shown in FIG. 6, the function of the state shown in FIG.
It is the slide groove 8 and the shaft 7 that can move to the left and right in the figure on the top of FIG. 7 and regulate the movement in that direction. The spring 18 tries to lift the holding plate 16 and the handle is turned to the ON side, that is, the first When the user tries to rotate the link 3 clockwise about the handle shaft, the shaft portion 7 of the second link 5 is rotated.
Is pushed all the way to the left in the figure with respect to the width W of the slide groove 8, so that the engagement amount k between the engagement step portion 12 and the one end 13 becomes relatively deep.
【0018】次に第5図の状態における係合段部12と
一端13の係合量は、第5図の状態の機能略図第7図に
おいて、前述と同様の理由により、しかしながら今度は
第1リンク3と第2のリンク5の連結部6はハンドル軸
1と軸部7を結ぶ線分より成る死点を図の左に超えてお
り、且つ第1のリンク3は、その時計方向への回動を規
制部27により規制されているから、軸7はスライド溝
8の巾方向の図の右側いっぱいに押しやられ、したがっ
て第6図の場合に比べ軸7はずの左方へW2だけ位置ず
れすることになる。Next, the amount of engagement between the engaging step portion 12 and the one end 13 in the state of FIG. 5 is determined by the function schematic diagram of FIG. The connecting portion 6 of the link 3 and the second link 5 exceeds the dead center consisting of a line segment connecting the handle shaft 1 and the shaft portion 7 to the left of the drawing, and the first link 3 moves in the clockwise direction. from being restricted by the restriction portion 27 of the rotation, the shaft 7 is pushed all the way to the right in the width direction of the figure the slide groove 8, thus position by W 2 to the left of the comparison shaft 7 has the case of FIG. 6 It will shift.
【0019】軸部7の位置ずれに従い押え板16も図の
右方へW2だけずれて、係合量も第6図のkからW2だけ
小さくなり、通常0.数mmからせいぜい1mm程度とな
る。The presser plate 16 in accordance with positional displacement of the shaft portion 7 even shifted by W 2 to the right in the figure, the engaging amount is reduced by W2 from k of Figure 6, typically 0. From several mm to at most 1 mm.
【0020】本件発明のような回路遮断器において、異
常時機構が動作して接点を閉から開にして回路を遮断す
る場合には、遮断器が完全にONになった第5図の状態
から、遮断器の負荷側の電路に異常が発生した場合に行
なわれるいわゆるO遮断と呼ばれる場合と、すでに遮断
器の負荷側の電路に異常の原因が発生しており、その状
態で遮断器をOFFからONに投入した場合に行なわれ
るいわゆるCO遮断と呼ばれる、すなわち第4図の状態
から行なわれる場合の2通りがある。In the circuit breaker according to the present invention, when the abnormal state mechanism operates to close the contact and open the circuit to cut off the circuit, the circuit breaker is completely turned on from the state shown in FIG. The so-called O-interruption, which is performed when an abnormality occurs in the circuit on the load side of the circuit breaker, and when the cause of the abnormality has already occurred in the circuit on the load side of the circuit breaker, the circuit breaker is turned off in that state. There are two types of so-called CO cutoff which is performed when the switch is turned on from ON, that is, when the switch is turned on from the state shown in FIG.
【0021】しかし上述の2通りの遮断の状態において
は、従来例の場合前述の如く引き外し杆9と押え板16
の係合量に差があると、以下のようにCO遮断の場合に
はなはだ都合が悪い。However, in the above-mentioned two types of cut-off states, in the case of the conventional example, the tripping rod 9 and the holding plate 16 are provided as described above.
If there is a difference in the amount of engagement between the two, it is very inconvenient in the case of CO cutoff as described below.
【0022】すなわちO遮断のばあいの係合量に比べC
O遮断の場合の係合量が大きいので、CO遮断の場合、
異常検出素子が引き外し杆を引き外し回動付勢しはじめ
て係合が外れるまでの時間が、O遮断に比べ長く必要で
あり、異常を検出してから接点が開きはじめるまでの時
間が長くかかり、その結果遮断性能がO遮断に比べ悪く
なるのである。O遮断の場合の係合量は0.数mm〜1mm
程度しかなく、対してCO遮断の場合更に0.数mm長く
なるのであるからその影響は大きい。That is, C is smaller than the engagement amount in the case of O interruption.
Since the amount of engagement in the case of O cutoff is large, in the case of CO cutoff,
The time from when the abnormality detection element begins to pull the release rod to rotate and urge it to disengage is required longer than when the O is shut off, and it takes a longer time from the detection of an abnormality until the contact starts to open. As a result, the blocking performance is worse than that of O blocking. The amount of engagement in the case of O interruption is 0. Several mm to 1 mm
On the other hand, in the case of CO cut-off, an additional 0. The effect is significant because it is several mm longer.
【0023】上述の不具合を解消しようとすれば、軸部
7の径に対してスライド溝8の巾をぎりぎりまで小さく
とる必要がある。また押え板の軸穴14の径も軸7の径
に対してぎりぎりまで小さくするのが望ましい。In order to solve the above problem, it is necessary to make the width of the slide groove 8 as small as possible with respect to the diameter of the shaft portion 7. It is also desirable that the diameter of the shaft hole 14 of the holding plate be made as small as possible with respect to the diameter of the shaft 7.
【0024】しかしながら軸部7切断部は、前述の第3
図の如く被断面が出ていたり変形しているのが普通であ
り、最低限この切断部が通る寸法でなければならない。
もしくは軸部7の切断部をバレル研磨等で整形する等の
工程を追加してコストをかけた上で、ぎりぎりまで溝の
巾を小さくするかのいずれかとなる。However, the cutting part of the shaft part 7 is the same as that of the third part.
As shown in the figure, the cross section is usually protruded or deformed, and it must be at least a dimension through which the cut portion passes.
Alternatively, after adding a step of shaping the cut portion of the shaft portion 7 by barrel polishing or the like and increasing the cost, the width of the groove is reduced to the last.
【0025】また自動組立など組立作業性を良くするた
めには出来るだけ広い方が望ましく、前述の遮断性能の
不具合とは相反する。In order to improve assembling workability such as automatic assembling, it is desirable that the width is as large as possible, which is inconsistent with the above-mentioned problem of the breaking performance.
【0026】[0026]
【発明の目的】そこで本件の発明はO遮断とCO遮断で
係合部の係合量が変わらずいずれの場合でも遮断性能が
良く、組立作業性が良くて、コストの安い回路遮断器を
提供することを目的としている。SUMMARY OF THE INVENTION Therefore, the present invention provides a circuit breaker that has good breaking performance, good assembly workability, and low cost in any case where the amount of engagement of the engaging portion does not change between O blocking and CO blocking. It is intended to be.
【0027】[0027]
【手段】その為本件の発明は、フレームのスライド溝と
押え板の軸穴を軸挿入巾広部と巾せま機能部の2段構造
とした。Therefore, in the present invention, the slide groove of the frame and the shaft hole of the holding plate have a two-stage structure of a wide shaft insertion portion and a widening function portion.
【0028】[0028]
【作用】組立時は、軸を巾広部から作業性良く挿入し、
機能時は巾せま部で機能して係合量が変化せず、したが
ってO遮断とCO遮断で性能が変化していない。また軸
部もバレル研磨等追加工程が不要となりその分コストが
安くできる。[Function] During assembly, insert the shaft from the wide part with good workability.
At the time of functioning, it functions in the width portion and the amount of engagement does not change, so that the performance does not change by O cutoff and CO cutoff. Also, the shaft portion does not require an additional step such as barrel polishing, so that the cost can be reduced accordingly.
【0029】[0029]
【実施例】第1図〜第2図は本件発明の一実施例であ
る。100は第4図〜第7図におけるスライド溝8に相
当する本件発明に用いるスライド溝であり、第1図は従
来例の第4図に相当する状態の図であり、軸部7はハン
ドル2がOFFからONへ向けて回動し、接点20,2
1がちょうど接触した位置にある。1 and 2 show an embodiment of the present invention. Reference numeral 100 denotes a slide groove used in the present invention corresponding to the slide groove 8 in FIGS. 4 to 7, and FIG. 1 is a view corresponding to FIG. Are turned from OFF to ON, and the contacts 20, 2
1 is in the position just touched.
【0030】スライド溝100は第1図に示す軸部7の
位置を含め、その位置より図の下方では、ほぼ軸径と同
程度のぎりぎりまで巾を狭くしたW'の巾の巾せま部1
02としてあり、軸部7の位置より上では巾せま部10
2への導入部103を有して、軸径に対して切断部の変
形やバリさらに組立作業性を考慮して十分な巾W"とし
た巾広部101としてある。The slide groove 100 includes the position of the shaft portion 7 shown in FIG. 1, and below the position, the width of the width W 'is reduced to almost the same as the shaft diameter.
02, and a width of 10 above the position of the shaft 7
2 has a wide portion 101 having a width W ″ sufficient for the shaft diameter in consideration of deformation of the cut portion, burrs, and ease of assembly.
【0031】また更により良く本件発明を機能させるた
めには、第2図(イ)(ロ)の如く、押え板16の軸穴
200を前述の巾広部101と同様にW"程度巾広穴と
し、下方の一部をV状部201や巾せま部201'のよ
うに形成すると良い。In order to make the present invention function even more well, as shown in FIGS. 2A and 2B, the shaft hole 200 of the holding plate 16 is widened by about W ″ similarly to the above-mentioned wide portion 101. It is good to form a hole, and to form a lower part like V-shaped part 201 and width | variety part 201 '.
【0032】上述のように構成した遮断器は、組立てる
際は、ハンドル軸1にハンドル2、第1のリンク3、ハ
ンドルばね23等を組立てた後、ハンドル2が第1図よ
り反時計方向に回転したOFF位置近くにあるときに、
第2のリンク5の軸部6を第一のリンク3の穴4に、又
軸部7をスライド溝100の巾広部101に入れると共
に、押え板16の軸穴200へも同時に貫通する。When assembling the circuit breaker constructed as described above, after assembling the handle 2, the first link 3, the handle spring 23 and the like on the handle shaft 1, the handle 2 is moved counterclockwise from FIG. When it is near the rotated OFF position,
The shaft 6 of the second link 5 is inserted into the hole 4 of the first link 3, the shaft 7 is inserted into the wide portion 101 of the slide groove 100, and simultaneously penetrates the shaft hole 200 of the holding plate 16.
【0033】この時軸部7を挿入する穴は、前述の如く
巾広部101と巾の広い軸穴200であるので非常に作
業性が良くまたハンドル軸1にハンドル2、第1のリン
ク3を組み付けた後に楽に挿入できる。At this time, since the holes into which the shaft portion 7 is inserted are the wide portion 101 and the wide shaft hole 200 as described above, the workability is very good, and the handle shaft 1 has the handle 2 and the first link 3. Can be easily inserted after assembling.
【0034】上述により組立てられたハンドルOFFの
状態から、ハンドルをON側すなわち図の時計方向に回
転して行くと、軸部7はスライド溝の巾広部101から
導入部を103を経て巾せま部102に降りてくると共
に、押え板16への端部13と係合段部12が係合し、
押え部15がクロスバー17に当接し、軸部7がV状部
201に導かれ当接して、軸部7がV状部201を下方
に押しはじめる。When the handle is turned to the ON side, that is, clockwise in the drawing, from the handle OFF state assembled as described above, the shaft portion 7 is widened from the wide portion 101 of the slide groove via the introduction portion 103. As it descends to the portion 102, the end portion 13 to the holding plate 16 and the engaging step portion 12 engage,
The holding portion 15 contacts the crossbar 17, the shaft portion 7 is guided and abuts on the V-shaped portion 201, and the shaft portion 7 starts pushing the V-shaped portion 201 downward.
【0035】その後軸部7はV状部201に当接し、更
にスライド溝100の巾せま部102に完全に入った状
態で接点20,21が閉接し、更にハンドルをON方向
に回転して行くと軸部7がV状部201に当接したま
ま、スライド溝100内の巾せま部102を下方に移動
し、軸部6がハンドル軸1と軸部7を結ぶ線分により構
成される死点を超え、位置規制部27に当接して接点O
Nを保持する。Thereafter, the shaft portion 7 comes into contact with the V-shaped portion 201, and the contacts 20, 21 are closed in a state where the shaft portion 7 has completely entered the width portion 102 of the slide groove 100, and the handle is further rotated in the ON direction. While the shaft portion 7 is in contact with the V-shaped portion 201, the width portion 102 in the slide groove 100 is moved downward, and the shaft portion 6 is formed by a line segment connecting the handle shaft 1 and the shaft portion 7. The point O
Hold N.
【0036】この時、ハンドル2をON側に操作して接
点20,21が接触し、完全にONになるまで軸部7は
押え板16のV状部201に当接し続け、更にスライド
溝100の巾せま部102内を移動するから、従来の第
4図第5図の例のようにO遮断時とCO遮断時で係合段
部12と一端13の係合量の変化は大きくなることなく
微少で済んで、遮断性能も変化しない。At this time, by operating the handle 2 to the ON side, the contacts 20 and 21 come into contact, and the shaft 7 continues to contact the V-shaped portion 201 of the holding plate 16 until it is completely turned on. 4 and 5, the change in the amount of engagement between the engagement step 12 and the one end 13 at the time of O interruption and at the time of CO interruption as in the conventional example of FIG. 4 and FIG. It is small and does not change the blocking performance.
【0037】[0037]
【効果】異常のように本件発明によれば組立てやすく、
且つO遮断CO遮断のいずれにおいても遮断性能が変化
せず、コストの安い回路遮断器を得ることが出来る。[Effect] According to the present invention, it is easy to assemble as abnormal,
In addition, the interruption performance does not change in any of the O interruption and the CO interruption, and a low-cost circuit breaker can be obtained.
【第1図】 本件発明の一実施例の回路遮断器の機構の
図FIG. 1 is a diagram of a mechanism of a circuit breaker according to an embodiment of the present invention.
【第2図】 本件発明の回路遮断器の実施例の押え板の
図FIG. 2 is a diagram of a holding plate of the embodiment of the circuit breaker of the present invention.
【第3図】 本件発明に使用する第2のリンクの例FIG. 3 shows an example of a second link used in the present invention.
【第4図】 従来例の回路遮断器の機構の図FIG. 4 is a diagram of a mechanism of a conventional circuit breaker.
【第5図】 〃[Fig. 5]
【第6図】 第4図の機能略図FIG. 6 is a functional diagram of FIG. 4;
【第7図】 第5図の機能略図FIG. 7 is a functional diagram of FIG.
【第8図】 別の第2のリンクの例図FIG. 8 is an example diagram of another second link.
【第9図】 フレームの例図 2 ハンドル 23 ハンドル
ばね 3 第1のリンク 100 スライド
溝 5 第2のリンク 101 巾広部 9 引き外し杆 102 巾せま部 16 押え板 200 軸穴 17 クロスバー 201 V状部 20,21 接点[Fig. 9] Fig. 9 shows an example of a frame 2 Handle 23 Handle spring 3 First link 100 Sliding groove 5 Second link 101 Wide section 9 Stripping rod 102 Width section 16 Holding plate 200 Shaft hole 17 Cross bar 201 V Shaped 20, 21 contacts
───────────────────────────────────────────────────── フロントページの続き (72)発明者 古本 哲男 広島市南区大州3丁目1番42号テンパー ル工業株式会社内 (72)発明者 高見 一人 広島市南区大州3丁目1番42号テンパー ル工業株式会社内 審査官 中川 真一 (56)参考文献 特開 昭57−134834(JP,A) (58)調査した分野(Int.Cl.6,DB名) H01H 71/12 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tetsuo Furumoto 3-142 Oshu, Minami-ku, Hiroshima City Inside Templar Industries Co., Ltd. (72) Inventor Kazuto Takami 3-42 Oshu, Minami-ku, Hiroshima City Shinichi Nakagawa, Examiner at No. Templar Industry Co., Ltd. (56) References JP-A-57-134834 (JP, A) (58) Fields investigated (Int. Cl. 6 , DB name) H01H 71/12
Claims (2)
はOFF側に回動する第一のリンク、 第1のリンクの回動端側に一端が軸支され、他端が押え
板に軸支されると共に、該他端側の軸部が、ハンドル軸
に対して遠近方向にフレームに設けられたスライド構内
を摺動する第2のリンク、 押え板との係合部を有し、回路の異常により前記係合部
を引き外し付勢される引き外し杆、 一端が引き外し杆の係合部に係合し、他端側に前記第2
のリンクを軸支する軸穴と、可動接点に連動し常時接点
開方向に弾性付勢されるクロスバーの押え部を有し、ク
ロスバーの付勢力により前記第2のリンクのスライド溝
側の端部を常時前記ハンドル軸に近い方向へ弾性付勢す
る押え板、 常にハンドルをOFF方向に回動付勢するハンドルば
ね、 フレームに設けられた回動規制部とより成り、 前記第一のリンクと、第2のリンクと,各リンクの非連
結側の端部間を圧縮する弾性付勢力とが、該非連結側端
部間を結ぶ線分を死点とするオーバセンタトグルリンク
機構を成し、 ハンドルをOFF側からON方向に回動させて行くと、 第一のリンクと、第2のリンクの連結部が、前記オーバ
センタトグルリンク機構の死点を超える前に接点が閉接
した第1の状態に達し、その後連結部が死点を超えて、
フレームに設けられた規制部により第1のリンクの回動
が規制された第2の状態で、ON保持する回路遮断器に
おいて。前記スライド溝は、第2のリンクの押え板側の
軸部が前記第1の状態にある位置から、その位置を含め
それよりハンドル軸から遠い側では該軸部の径とほぼ同
一程度まで巾を小さくした巾せま部とし、それよりハン
ドル軸に近い側は幅広部とした、2段巾形状としたこと
を特徴とする回路遮断器。1. A handle shaft fixed to a frame, a first link that rotates integrally with the handle toward the ON or OFF side about the handle shaft, one end of which is provided at a rotation end side of the first link. A second link that is supported, the other end of which is pivotally supported by the holding plate, and the shaft portion of the other end slides in a slide yard provided on the frame in a distance direction with respect to the handle shaft; A tripping rod which is urged to trip the engaging portion due to an abnormality in the circuit, one end of which is engaged with the engaging portion of the tripping rod, and the other end of which has the second end.
A shaft hole supporting the link of the second link, and a pressing portion of a crossbar which is always elastically urged in the contact opening direction in conjunction with the movable contact. A pressing plate that constantly biases the end portion in a direction close to the handle shaft; a handle spring that constantly biases the handle in the OFF direction; and a rotation restricting portion provided on a frame; And the second link and the elastic biasing force for compressing between the non-connection-side ends of the links form an over-center toggle link mechanism with a dead point at a line connecting the non-connection-side ends. When the handle is rotated from the OFF side to the ON direction, the first contact point of the link between the first link and the second link closes before the dead center of the over-center toggle link mechanism. 1 is reached, then the connection exceeds the dead point ,
A circuit breaker that is kept ON in the second state in which the rotation of the first link is restricted by the restriction unit provided on the frame. The slide groove has a width from the position where the shaft portion on the holding plate side of the second link is in the first state to a position substantially equal to the diameter of the shaft portion on the side farther from the handle shaft including that position. A circuit breaker characterized in that it has a two-stage width shape in which a width is made smaller and a side closer to the handle shaft is wider than that.
広部並に大きくし、該軸穴のハンドル軸より遠い側は、
V状部もしくは巾せま部としたことを特徴とする、特許
請求の範囲、請求項1に記載した回路遮断器。 【0001】2. The shaft hole of the holding plate is made as large as the wide portion of the slide groove, and the side of the shaft hole farther from the handle shaft is
The circuit breaker according to claim 1, wherein the circuit breaker is a V-shaped portion or a width portion. [0001]
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12561992A JP2950486B2 (en) | 1992-04-17 | 1992-04-17 | Circuit breaker |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12561992A JP2950486B2 (en) | 1992-04-17 | 1992-04-17 | Circuit breaker |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH05299000A JPH05299000A (en) | 1993-11-12 |
JP2950486B2 true JP2950486B2 (en) | 1999-09-20 |
Family
ID=14914560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12561992A Expired - Lifetime JP2950486B2 (en) | 1992-04-17 | 1992-04-17 | Circuit breaker |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2950486B2 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4607306B2 (en) * | 2000-09-28 | 2011-01-05 | テンパール工業株式会社 | Circuit breaker |
JP5217019B2 (en) * | 2008-04-17 | 2013-06-19 | テンパール工業株式会社 | Circuit breaker switching mechanism |
JP5217020B2 (en) * | 2008-04-17 | 2013-06-19 | テンパール工業株式会社 | Circuit breaker switching mechanism |
JP6134959B2 (en) * | 2013-08-22 | 2017-05-31 | 日東工業株式会社 | Circuit breaker for wiring |
EP3314628B1 (en) * | 2015-06-25 | 2020-05-27 | CARLING TECHNOLOGIES, Inc. | Circuit breaker with current limiting and high speed fault capability |
-
1992
- 1992-04-17 JP JP12561992A patent/JP2950486B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH05299000A (en) | 1993-11-12 |
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