JPS6326908Y2 - - Google Patents
Info
- Publication number
- JPS6326908Y2 JPS6326908Y2 JP1981141280U JP14128081U JPS6326908Y2 JP S6326908 Y2 JPS6326908 Y2 JP S6326908Y2 JP 1981141280 U JP1981141280 U JP 1981141280U JP 14128081 U JP14128081 U JP 14128081U JP S6326908 Y2 JPS6326908 Y2 JP S6326908Y2
- Authority
- JP
- Japan
- Prior art keywords
- lever
- handle
- rear end
- plate
- base
- 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
Links
- 230000000694 effects Effects 0.000 description 3
- 229920003002 synthetic resin Polymers 0.000 description 3
- 239000000057 synthetic resin Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 1
- 210000001364 upper extremity Anatomy 0.000 description 1
Landscapes
- Breakers (AREA)
Description
【考案の詳細な説明】
産業上の利用分野
この考案は回路しや断器に関するものであり、
例えば安全ブレーカのように比較的小形の回路し
や断器における引外し装置の構造を改良した回路
しや断器に関するものである。[Detailed explanation of the invention] Industrial application field This invention relates to circuits and disconnectors.
The present invention relates to a relatively small circuit or disconnection device such as a safety breaker, in which the structure of the tripping device is improved.
従来の技術
第１図は例えば特公昭51−53274号公報に示さ
れた従来の回路しや断器の開路状態の引外し機構
部を示す部分側断面図である。今、第１図におい
て、ハンドル５を軸６を中心として反時計方向に
回動させ、回路しや断器を閉路させる場合、レバ
ー８の後端部８ｄが引外し杆１２の垂直平面に当
接しながら下降して係合部１２ｂに係合し、回路
しや断器を閉路状態とする。BACKGROUND ART FIG. 1 is a partial side sectional view showing a tripping mechanism of a conventional circuit breaker or circuit breaker in an open state, as disclosed in, for example, Japanese Patent Publication No. 51-53274. Now, in FIG. 1, when the handle 5 is rotated counterclockwise about the shaft 6 to close the circuit or disconnector, the rear end 8d of the lever 8 comes into contact with the vertical plane of the tripping rod 12. While touching, it descends and engages with the engaging portion 12b, thereby closing the circuit and disconnector.
しかしながら、上記のように構成された従来の
回路しや断器において、ハンドル５を非常に速く
反時計方向に回動させるとレバー８の後端部８ｄ
によつて引外し杆１２が右方向に強力に押出さ
れ、レバー８の後端部８ｄが係合部１２ｂの処ま
で下降した時、引外し杆１２が右方へ逃げていて
そのため後端部８ｄが係合部１２ｂと係合できな
い空打ち状態となることがあつた。 However, in the conventional circuit breaker configured as described above, when the handle 5 is rotated counterclockwise very quickly, the rear end 8d of the lever 8
When the tripping rod 12 is pushed out forcefully to the right by the lever 8 and the rear end 8d of the lever 8 descends to the engaging portion 12b, the tripping rod 12 escapes to the right and the rear end 8d could not engage with the engaging portion 12b, resulting in a blank firing state.
この考案は、上記のような従来のものの問題点
を解消するためになされたものであり、ハンドル
の投入操作時において、引外し杆が移動しない回
路しや断器を提供することを目的とする。 This invention has been made in order to solve the problems of the conventional devices as described above, and has as its object to provide a circuit breaker in which the tripping rod does not move when the handle is turned on.
問題点を解決するための手段
この考案に係る回路しや断器は、引外し杆の中
間部に、ハンドルの閉成位置におけるレバーの後
端部と係合する係合部と、引外し杆の上方部に、
ハンドルの開放位置におけるレバーの後端部と係
合する凸部と、この凸部と係合部との間に、ハン
ドルの投入操作時におけるレバーの後端部の移動
により、引外し杆が移動しないようにした凹部を
備えたものである。Means for Solving the Problems The circuit breakers and circuit breakers according to this invention include an engaging portion that engages with the rear end of the lever when the handle is in the closed position, and an engaging portion that engages with the rear end of the lever when the handle is in the closed position. In the upper part of
There is a protrusion that engages with the rear end of the lever when the handle is in the open position, and a tripping rod that moves between the protrusion and the engagement part when the rear end of the lever moves when the handle is turned on. It is equipped with a recessed part to prevent it from happening.
作 用
この考案の回路しや断器は、ハンドルの閉成位
置においてレバーの後端部と係合する引外し杆の
係合部を設け、ハンドルの開放位置においてレバ
ーの後端部と係合する引外し杆の凸部を設け、か
つこの凸部と係合部との間に凹部を設けて、ハン
ドルの投入操作によるレバーの後端部の移動よ
る、引外し杆の振れを防止する。Function The circuit breaker and breaker of this invention is provided with an engaging part of the trip lever that engages with the rear end of the lever when the handle is in the closed position, and which engages with the rear end of the lever when the handle is in the open position. A convex portion of the trip lever is provided, and a recess is provided between the convex portion and the engaging portion to prevent the trip lever from swinging due to movement of the rear end of the lever due to the closing operation of the handle.
実施例
以下この考案の一実施例を図について説明す
る。Embodiment An embodiment of this invention will be described below with reference to the drawings.
第２図はこの考案に係る回路しや断器の一実施
例を示す側断面図である。第３図は第２図の開閉
機構部の組立展開図である。第２図及び第３図に
おいて、ベース１及びカバー２は共に合成樹脂で
成形され、しや断器の外かくを構成するものであ
る。フレーム３は略Ｌ字状に成形され、立板部３
ａは後に詳述するように開閉機構部品の装着に供
され、底板部３ｂは小ねじ４によつてベース１に
累着されている。ハンドル５は内溝５ａにフレー
ム３の上部を収容し、フレーム３の丸穴３ｃに軸
６により回動自在に支承されている。軸６の両端
はハンドル５がフレーム３に組立てられた状態で
カバー２の案内溝（図示せず）に挿入される。コ
字状のピン７は、上腕７ａはハンドル５の先端の
穴５ｂに嵌装され、その下腕７ｂはレバー８の穴
８ｂ及びフレーム３の細長穴３ｄに嵌装されてい
る。レバー８は略コ字状に形成され、両垂下板８
ａにはコ字状のピン７の下腕７ｂを挿通する丸穴
８ｂが設けられ、上面部の中央にはフレーム３の
立板部３ａを遊嵌する細角穴８ｃが設けられ、後
端部８ｄは両丸穴８ｂのほぼ真中を中心として丸
味が成形されている。ハンドルばね９はハンドル
５の内溝５ａに収容され、コイル部に軸６を挿通
し、前足９ａの先端は略半円弧状に成形され、内
溝８ａ内にてコ字状のピン７の上腕７ａに掛止さ
れ、後足９ｂはフレーム３の係止部３ｅに係止さ
れてハンドル５を時計方向に付勢している。なお
前足９ａは上腕７ａに係止されたとき、上腕７ａ
に係止されたとき、上腕７ａを軸６の方向に引き
寄せるようにされている。押え板１０は合成樹脂
で構成され、ベース１の溝１ａにはまり、押しば
ね１１により上方向に付勢され、かつ上部をレバ
ー８により押さえられて上下動するように設置さ
れている。引外し杆１２は合成樹脂で構成され、
第４図に示すようにベース１のＵ字状溝１ｂに支
持軸部１２ａが回動可能に支持されており、その
取付状態を第５図に示すように、レバー８の後端
部８ｄに係合する係合部１２ｂと、後述するバイ
メタル１６に係合する係合部１２ｃと、後述する
板ばね１３の取付用の細溝部１２ｄ及び係止部１
２ｅと、回路しや断器が開状態において引外し杆
１２の前傾防止用の凸部１２ｆを有する。板ばね
１３は第３図及び第５図に示すように略Ｌ字状に
構成され、立板１３ａを引外し杆１２の細溝部１
２ｄに嵌め込み、更に横板１３ｂをベース１の係
止部１ｃに係止して組立てられ、組立て状態にて
わん曲される如くなり、この板ばね１３の弾性に
より引外し杆１２は支持軸部１２ａを支点として
反時計方向に付勢されている。なお板ばね１３は
立板１３ａの先端部に切出し状の突起１３ｃが形
成され、細溝部１２ｄに隣接する係止部１２ｅに
係止され、嵌め込んだ際抜けないようにされてい
る。可動子１４はフレーム３の底板３ｂから延長
した可動子取付部３ｆに一端が固定され、ほぼ中
央部を前述の押え板１０の切込溝１０ａに貫通挿
入され、可動自由端に可動接点１５が固着されて
いる。バイメタル１６は可動子１４と共に可動子
取付部３ｆに固着されており、電流による発熱作
用により先端が第２図において右方向にわん曲す
るもので、わん曲時に先端は引外し杆１２の係合
部１２ｃと係合して、引外し杆１２を板ばね１３
の付勢力に抗して時計方向に回動させるものであ
る。端子装置１７はベース１に装着され、回路し
や断器に接続する電源側の電線（図示せず）を接
続するものである。可撓銅より線１８は、その一
端は端子装置１７に固着され、その他端はバイメ
タル１６に固着されて、両者を接続するものであ
る。端子板１９はベース１に装着されたものであ
る。固定接点２０は端子板１９の可動接点１５に
対応する位置に固着されたものである。端子装置
２１は端子板１９の他端を収容し、回路しや断器
に接続する負荷側の電線（図示せず）を接続する
ものである。 FIG. 2 is a side sectional view showing an embodiment of the circuit breaker according to the invention. FIG. 3 is an exploded view of the opening/closing mechanism shown in FIG. 2. In FIGS. 2 and 3, a base 1 and a cover 2 are both molded from synthetic resin and constitute the outer shell of the sheath cutter. The frame 3 is formed into a substantially L-shape, and the vertical plate portion 3
A is used for attaching opening/closing mechanism parts as will be described in detail later, and the bottom plate part 3b is fixed to the base 1 with machine screws 4. The handle 5 accommodates the upper part of the frame 3 in an inner groove 5a, and is rotatably supported by a shaft 6 in a round hole 3c of the frame 3. Both ends of the shaft 6 are inserted into guide grooves (not shown) of the cover 2 with the handle 5 assembled to the frame 3. The upper arm 7a of the U-shaped pin 7 is fitted into a hole 5b at the tip of the handle 5, and the lower arm 7b is fitted into a hole 8b of the lever 8 and an elongated hole 3d of the frame 3. The lever 8 is formed into a substantially U-shape, with both hanging plates 8
A is provided with a round hole 8b through which the lower arm 7b of the U-shaped pin 7 is inserted, and a narrow square hole 8c is provided in the center of the top surface into which the upright plate portion 3a of the frame 3 is loosely fitted. The portion 8d is rounded approximately at the center of both round holes 8b. The handle spring 9 is housed in the inner groove 5a of the handle 5, the shaft 6 is inserted into the coil part, the tip of the front leg 9a is formed into a substantially semicircular arc shape, and the upper arm of the U-shaped pin 7 is inserted into the inner groove 8a. 7a, and the rear legs 9b are locked to the locking portions 3e of the frame 3 to bias the handle 5 clockwise. Note that when the leg 9a is locked to the upper arm 7a, the upper arm 7a
When the upper arm 7a is locked in the direction of the shaft 6, the upper arm 7a is pulled in the direction of the shaft 6. The presser plate 10 is made of synthetic resin, and is installed so that it fits into the groove 1a of the base 1, is biased upward by a push spring 11, and is moved up and down with its upper portion pressed by a lever 8. The tripping rod 12 is made of synthetic resin,
As shown in FIG. 4, a support shaft 12a is rotatably supported in the U-shaped groove 1b of the base 1, and its attached state is shown in FIG. 5 on the rear end 8d of the lever 8. An engaging portion 12b that engages, an engaging portion 12c that engages with a bimetal 16 (described later), a narrow groove portion 12d for attaching a leaf spring 13 (described later), and a locking portion 1.
2e, and a convex portion 12f for preventing the tripping rod 12 from tilting forward when the circuit breaker is in the open state. As shown in FIGS. 3 and 5, the leaf spring 13 is formed into a substantially L-shape, and is capable of tripping the vertical plate 13a and pushing the narrow groove 1 of the rod 12.
2d, and then the horizontal plate 13b is locked to the locking portion 1c of the base 1 to be assembled, and in the assembled state, it is bent, and due to the elasticity of the leaf spring 13, the tripping rod 12 is attached to the support shaft portion. It is urged counterclockwise using 12a as a fulcrum. Note that the leaf spring 13 has a cut-out projection 13c formed at the tip of the vertical plate 13a, and is locked to a locking portion 12e adjacent to the narrow groove portion 12d, so that it will not come off when fitted. One end of the movable element 14 is fixed to a movable element attachment part 3f extending from the bottom plate 3b of the frame 3, and the approximately central part is inserted through the cut groove 10a of the above-mentioned presser plate 10, and a movable contact 15 is attached to the movable free end. It is fixed. The bimetal 16 is fixed to the movable element attachment part 3f together with the movable element 14, and its tip bends to the right in FIG. 12c, and the tripping rod 12 is engaged with the leaf spring 13.
It rotates clockwise against the urging force of. The terminal device 17 is mounted on the base 1 and is used to connect an electric wire (not shown) on the power supply side to be connected to a circuit or a disconnector. The flexible copper stranded wire 18 has one end fixed to the terminal device 17 and the other end fixed to the bimetal 16 to connect the two. The terminal plate 19 is attached to the base 1. The fixed contact 20 is fixed to the terminal plate 19 at a position corresponding to the movable contact 15. The terminal device 21 accommodates the other end of the terminal plate 19 and connects a load-side electric wire (not shown) to be connected to a circuit or disconnector.
次に以上の如く構成された回路しや断器につい
て動作を説明する。第２図に示す回路しや断器の
閉成状態において、電流は端子装置１７→可撓銅
より線１８→バイメタル１６→可動子１４→可動
接点１５→固定接点２０→端子板１９→端子装置
２１と流れ、バイメタル１６の先端は電流の発熱
作用により第２図において右方向にわん曲する。
今、所定値以上の過電流が流れると、バイメタル
１６の先端は引外し杆１２の係合部１２ｃと係合
し、引外し杆１２を時計方向に回動させる。引外
し杆１２が時計方向に回動すると、引外し杆１２
の係合部１２ｂとレバー８の後端部８ｄの係合が
外れ、レバー８は押え板１０を介した押しばね１
１の作用により、コ字状のピン７の下腕７ｂを支
点として時計方向に回転する。従つて押え板１０
は上方向に移動し、押え板１０の切込溝１０ａに
貫通挿入された可動子１４も上り、可動接点１５
を固定接点２０より開離させる。以上の如くして
過電流が流れたとき、第２図の閉成状態より自動
的にこの回路しや断器を開路する。続いてハンド
ル５はハンドルばね９によつて時計方向に付勢さ
れているので、コ字状のピン７はフレーム３の細
長穴３ｄに沿つて上方に移動し、それによりレバ
ー８の後端部８ｄは引外し杆１２の係合部１２ｂ
との係合が解かれて上方へ上り、凸部１２ｆの付
近で静止する。従つて電流が切れてバイメタル１
６が元の位置に戻ると、引外し杆１２は板ばね１
３の作用により反時計方向に回転され、第６図の
如き状態となる。従つてこの状態よりハンドル５
を反時計方向に回動させれば、コ字状のピン７は
フレーム３の細長穴３ｄに沿つて下方に移動し、
このときレバー８の後端部８ｄと引外し杆１２の
係合部１２ｂが係合し、レバー８はこの係合部１
２ｂを支点として押え板１０を押し、ばね１１に
抗して押し下げ及び第２図の状態となり閉路す
る。 Next, the operation of the circuit and disconnector constructed as described above will be explained. In the closed state of the circuit and breaker shown in FIG. 2, the current flows from terminal device 17 → flexible copper stranded wire 18 → bimetal 16 → mover 14 → movable contact 15 → fixed contact 20 → terminal plate 19 → terminal device 21, and the tip of the bimetal 16 curves to the right in FIG. 2 due to the heat generation effect of the current.
Now, when an overcurrent exceeding a predetermined value flows, the tip of the bimetal 16 engages with the engaging portion 12c of the tripping rod 12, causing the tripping rod 12 to rotate clockwise. When the tripping rod 12 rotates clockwise, the tripping rod 12
The engagement portion 12b of the lever 8 is disengaged from the rear end portion 8d of the lever 8, and the lever 8 is pressed against the pusher spring 1 via the presser plate 10.
1, the U-shaped pin 7 rotates clockwise around the lower arm 7b as a fulcrum. Therefore, the presser plate 10
moves upward, and the movable element 14 inserted through the cut groove 10a of the holding plate 10 also ascends, and the movable contact 15
is opened from the fixed contact 20. As described above, when an overcurrent flows, this circuit or breaker is automatically opened from the closed state shown in FIG. 2. Subsequently, the handle 5 is biased clockwise by the handle spring 9, so the U-shaped pin 7 moves upward along the elongated hole 3d of the frame 3, thereby pushing the rear end of the lever 8. 8d is the engagement part 12b of the tripping rod 12
It disengages and rises upward, and comes to rest near the convex portion 12f. Therefore, the current is cut off and bimetal 1
6 returns to its original position, the tripping rod 12 releases the leaf spring 1
3 rotates counterclockwise, resulting in the state shown in FIG. Therefore, from this state, the handle 5
When rotated counterclockwise, the U-shaped pin 7 moves downward along the elongated hole 3d of the frame 3,
At this time, the rear end portion 8d of the lever 8 and the engaging portion 12b of the tripping rod 12 engage with each other, and the lever 8 engages with the engaging portion 12b of the lever 8.
Using 2b as a fulcrum, press the presser plate 10, push it down against the spring 11, and enter the state shown in FIG. 2 to close the circuit.
次に開路操作の過程における引外し杆１２の凸
部１２ｆの役目を説明する。今、第６図において
ハンドル５を反時計方向に回転すると、コ字状の
リンク７の下腕７ｂが下降を始めるので、押え板
１０とレバー８はその後端部８ｄが係合部１２ｂ
に当るまで回動する。凸部１２ｆは押え板１０と
レバー８の接触点を支点としてレバー８が回動す
る際にレバー８の後端部８ｄが凸部１２ｆに当接
しているときから係合部１２ｂに係合していると
きまで、引外し杆１２が同じ位置にあるようにし
てある。即ち第６図において引外し杆１２が左右
に動かないようにレバー８の後端部８ｄが凸部１
２ｆと係合部１２ｂとの途中に位置しても、引外
し杆１２が同じ位置にあるように凸部１２ｆと係
合部１２ｂとの間に所定の曲線の凹部が形成され
ている。従つて、閉路過程で、ハンドル５を非常
に速く回動させても、従来の如く引外し杆１２が
右方向に強力に押出されることがなく、レバー８
の後端部８ｄが係合部１２ｂの処まで下降した時
に、引外し杆１２が逃げていて係合が出来ないと
云う空打ち状態となることがない。 Next, the role of the convex portion 12f of the trip lever 12 in the process of opening the circuit will be explained. Now, when the handle 5 is rotated counterclockwise in FIG. 6, the lower arm 7b of the U-shaped link 7 starts to descend, so that the rear end 8d of the holding plate 10 and the lever 8 is connected to the engaging part 12b.
Rotate until it hits. The convex portion 12f engages with the engaging portion 12b from when the rear end portion 8d of the lever 8 is in contact with the convex portion 12f when the lever 8 rotates using the contact point between the presser plate 10 and the lever 8 as a fulcrum. The trip lever 12 is kept in the same position until the end of the operation. That is, in FIG. 6, the rear end portion 8d of the lever 8 is connected to the convex portion 1 so that the trip lever 12 does not move from side to side.
A predetermined curved recess is formed between the convex part 12f and the engaging part 12b so that the tripping rod 12 is at the same position even if it is located halfway between the protruding part 12f and the engaging part 12b. Therefore, even if the handle 5 is rotated very quickly during the circuit closing process, the trip lever 12 is not pushed out forcefully to the right as in the conventional case, and the lever 8
When the rear end portion 8d descends to the engaging portion 12b, there is no possibility of a blank firing state in which the tripping rod 12 escapes and engagement is not possible.
第７図は可動子１４の他の取付け状態を示す斜
視図である。即ち、第２図及び第３図に示す実施
例ではフレーム３に可動子取付部３ｆを設け、こ
の可動子取付部３ｆに可動子１４とバイメタル１
６とを取付けたが、第７図に示す実施例のもの
は、フレーム３の底板３ｂに取付けられる取付板
２２を別個に設けこの取付板２２に可動子１４と
バイメタル１６とを取付けたものである。なお、
押え板１０の切欠溝１０ａの代わりに貫通孔を設
けてもよい。 FIG. 7 is a perspective view showing another mounting state of the movable element 14. That is, in the embodiment shown in FIGS. 2 and 3, the frame 3 is provided with a movable element mounting part 3f, and the movable element 14 and the bimetal 1
However, in the embodiment shown in FIG. 7, a mounting plate 22 that is attached to the bottom plate 3b of the frame 3 is provided separately, and the mover 14 and the bimetal 16 are attached to this mounting plate 22. be. In addition,
A through hole may be provided in place of the cutout groove 10a of the holding plate 10.
考案の効果
以上のようにこの考案によれば、ハンドルの閉
成位置においてレバーの後端部と係合する引外し
杆の係合部を設け、ハンドルの開放位置において
レバーの後端部と係合する引外し杆の凸部を設
け、かつこの凸部と係合部との間に凹部を設け
て、ハンドルの投入操作によるレバーの後端部の
移動による、引外し杆の振れを防止することがで
き、精度の高い引外し特性が安価かつ簡単に得ら
れる効果を有する。Effects of the Device As described above, according to this device, an engaging portion of the trip lever is provided which engages with the rear end of the lever when the handle is in the closed position, and which engages with the rear end of the lever when the handle is in the open position. A convex portion of the tripping rod that fits is provided, and a recess is provided between the convex portion and the engaging portion to prevent the tripping rod from swinging due to movement of the rear end of the lever due to the closing operation of the handle. This has the effect that highly accurate tripping characteristics can be obtained easily and at low cost.
第１図は従来の回路しや断器の開路状態の引外
し機構部を示す部分側断面図、第２図はこの考案
に係る回路しや断器の閉路状態の一実施例を示す
側断面図、第３図は第２図の開閉機構部の組立展
開図、第４図はベースの要部を示す斜視図、第５
図は引外し杆の組立状態を示す部分側断面図、第
６図はこの考案に係る回路しや断器の開路状態を
示す側断面図、第７図は可動子の他の実施例を示
す斜視図である。
図において、各図中同一部分には同一符号を付
しており、１はベース、２はカバー、３はフレー
ム、３ａは立板、３ｃは丸穴、３ｄは細長穴、５
はハンドル、５ａは内溝、５ｂは穴、６は軸、７
はコ字状ピン、７ａは上腕、７ｂは下腕、８はレ
バー、８ｂは丸穴、８ｃは細角穴、８ｄは後端
部、１０は押え板、１０ａは切込溝、１１は押し
ばね、１２は引外し杆、１２ｂは係合部、１２ｆ
は凸部、１３は板ばね、１３ａは立板、１３ｂは
横板、１３ｃは突起、１４は可動子、１５は可動
接点、１６はバイメタル、１９は端子板、２０は
固定接点である。
Fig. 1 is a partial side sectional view showing the tripping mechanism of a conventional circuit breaker or breaker in an open state, and Fig. 2 is a side sectional view showing an embodiment of the circuit breaker or breaker according to this invention in a closed state. Figure 3 is an assembled exploded view of the opening/closing mechanism shown in Figure 2, Figure 4 is a perspective view showing the main parts of the base, and Figure 5 is a perspective view showing the main parts of the base.
The figure is a partial side sectional view showing the assembled state of the tripping rod, FIG. 6 is a side sectional view showing the open state of the circuit breaker according to this invention, and FIG. 7 shows another embodiment of the mover. FIG. In the figures, the same parts in each figure are given the same reference numerals: 1 is the base, 2 is the cover, 3 is the frame, 3a is the standing board, 3c is the round hole, 3d is the elongated hole, 5
is the handle, 5a is the inner groove, 5b is the hole, 6 is the shaft, 7
is a U-shaped pin, 7a is an upper arm, 7b is a lower arm, 8 is a lever, 8b is a round hole, 8c is a narrow square hole, 8d is a rear end, 10 is a holding plate, 10a is a cut groove, 11 is a pusher Spring, 12 is a tripping rod, 12b is an engaging portion, 12f
13 is a convex portion, 13 is a leaf spring, 13a is an upright plate, 13b is a horizontal plate, 13c is a protrusion, 14 is a mover, 15 is a movable contact, 16 is a bimetal, 19 is a terminal plate, and 20 is a fixed contact.
Claims (1)
端子板と、 前記固定接点に相対して、一端部に可動接点を
有する可動子と、 前記可動子の中間部を貫通挿入する切込み溝も
しくは孔を有し、前記可動接点を前記固定接点に
対して開閉させる押え板と、 前記押え板と前記ベースとの間に設置され、前
記押え板を前記ベースから開離する方向に押圧す
る押しばねと、 前記可動接点と前記固定接点との手動開閉操作
時に、開閉操作されるハンドルと、 前記ハンドルの閉成操作時に、前記押え板の上
端部を前端部で押圧し、中間部を支点にして前後
方向に回動可能に支持された板状のレバーと、 下端部が前記ベースに回動可能に支持され、中
間部に前記ハンドルの閉成位置時に前記レバーの
後端部と係合する係合部を有し、上方部に、前記
ハンドルの開放位置時に前記レバーの後端部に係
合する凸部を有し、かつ前記凸部と前記係合部間
に、前記ハンドルの投入操作による前記レバーの
移動により、前記レバーの後端部で押圧され、前
記下端部を中心に振れないように設けられた凹部
とを有する引外し杆とを 備えた回路しや断器。[Claims for Utility Model Registration] A terminal plate fixed to a base and having a fixed contact at one end; a mover having a movable contact at one end opposite to the fixed contact; and an intermediate portion of the mover. a holding plate having a cut groove or a hole inserted therethrough and opening and closing the movable contact with respect to the fixed contact; and a holding plate installed between the holding plate and the base to separate the holding plate from the base. a handle that is opened and closed when the movable contact and the fixed contact are manually opened and closed; and a front end that presses the upper end of the presser plate when the handle is closed; a plate-shaped lever supported so as to be rotatable in the front and back direction with the intermediate portion as a fulcrum; a lower end portion rotatably supported on the base; an engaging part that engages with the handle, a convex part that engages with the rear end of the lever when the handle is in the open position, and between the convex part and the engaging part; When the lever is moved by the closing operation of the handle, the lever is pressed by the rear end of the lever and has a recess provided to prevent the lever from swinging around the lower end. vessel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14128081U JPS5844748U (en) | 1981-09-21 | 1981-09-21 | circuit break |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14128081U JPS5844748U (en) | 1981-09-21 | 1981-09-21 | circuit break |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5844748U JPS5844748U (en) | 1983-03-25 |
| JPS6326908Y2 true JPS6326908Y2 (en) | 1988-07-21 |
Family
ID=29934390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14128081U Granted JPS5844748U (en) | 1981-09-21 | 1981-09-21 | circuit break |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5844748U (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6125410U (en) * | 1984-07-20 | 1986-02-15 | 正 後藤 | Stretcher guard attachment device |
| JPS62121268A (en) * | 1985-11-21 | 1987-06-02 | 信達 利晴 | Receiving metal jig for impact resistant stretcher |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5113220A (en) * | 1974-07-24 | 1976-02-02 | Naohisa Nagano | JIKIHETSUDOYOFUERAITOKOANO SEIZOHOHO |
| JPS5153274A (en) * | 1974-11-04 | 1976-05-11 | Matsushita Electric Works Ltd | KAIROSHADANKI |
| JPS5423637U (en) * | 1977-07-19 | 1979-02-16 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50154468U (en) * | 1974-06-07 | 1975-12-22 |
-
1981
- 1981-09-21 JP JP14128081U patent/JPS5844748U/en active Granted
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5113220A (en) * | 1974-07-24 | 1976-02-02 | Naohisa Nagano | JIKIHETSUDOYOFUERAITOKOANO SEIZOHOHO |
| JPS5153274A (en) * | 1974-11-04 | 1976-05-11 | Matsushita Electric Works Ltd | KAIROSHADANKI |
| JPS5423637U (en) * | 1977-07-19 | 1979-02-16 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5844748U (en) | 1983-03-25 |
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