JPS6367725B2 - - Google Patents
Info
- Publication number
- JPS6367725B2 JPS6367725B2 JP19226381A JP19226381A JPS6367725B2 JP S6367725 B2 JPS6367725 B2 JP S6367725B2 JP 19226381 A JP19226381 A JP 19226381A JP 19226381 A JP19226381 A JP 19226381A JP S6367725 B2 JPS6367725 B2 JP S6367725B2
- Authority
- JP
- Japan
- Prior art keywords
- lever
- plate
- vacuum
- rod
- shaft
- 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
- 238000010586 diagram Methods 0.000 description 10
- 230000004888 barrier function Effects 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 238000010008 shearing Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 1
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Description
【発明の詳細な説明】
発明の技術分野
本発明は真空しや断器などの開閉装置の改良に
関する。DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to improvements in switching devices such as vacuum shields and disconnectors.
発明の技術的背景
配電盤等に収納して用いられる真空しや断器は
各相に対応する真空バルブを有する真空バルブ部
と、この各相の真空バルブの可動電極を可動さ
せ、電極の開閉動作を行なわせる操作機構部とに
より概略構成される。このような真空しや断器に
は、その操作機構部の駆動源が手動によるものが
あり、通常これを手動バネ操作型の真空しや断器
と称している。Technical Background of the Invention A vacuum shield disconnector, which is housed in a switchboard or the like, has a vacuum valve section that has vacuum valves corresponding to each phase, and movable electrodes of the vacuum valves for each phase, which move to open and close the electrodes. It is generally composed of an operating mechanism section that performs the following operations. Some of these vacuum shields and disconnectors have a manual drive source for their operation mechanism, and are usually referred to as manual spring-operated vacuum shields and disconnectors.
以下、このような真空しや断器を第１図〜第４
図を参照して説明する。第１図はこの種従来の手
動バネ操作型の真空しや断器を示す概略構成図
で、図中イは正面図で、ロは側面図で、ハは平面
図で、ニは斜視図である。また、第２図及び第３
図は第１の例の真空バルブ及び操作機構部を正面
図方向から見た場合の構成図である。尚、各図に
おいては同一部分には同一符号を付している。第
１図において、VCは真空バルブ部で、この真空
バルブ部VCは略凹形状に形成された絶縁部材よ
りなる絶縁バリヤ１の内部に各相の真空バルブ２
を取付固定している。また、この真空バルブ部
VCの絶縁バリヤ１の上面には、左右に並立して
端子３を設けている。 Below, such a vacuum cutter is shown in Figures 1 to 4.
This will be explained with reference to the figures. Figure 1 is a schematic configuration diagram showing this kind of conventional manual spring-operated vacuum cutter. In the figure, A is a front view, B is a side view, C is a plan view, and D is a perspective view. be. Also, Figures 2 and 3
The figure is a configuration diagram of the vacuum valve and operating mechanism section of the first example when viewed from the front view direction. In each figure, the same parts are given the same reference numerals. In FIG. 1, VC is a vacuum valve part, and this vacuum valve part VC has vacuum valves 2 for each phase inside an insulating barrier 1 made of an insulating member formed in a substantially concave shape.
is installed and fixed. Also, this vacuum valve part
On the upper surface of the VC insulation barrier 1, terminals 3 are provided side by side on the left and right.
この真空バルブ２は、第２図に示すように、円
筒状の真空容器２ａに固定電極２ｂと可動電極２
ｃとを衝合可能に収納した構成である。この真空
バルブ２の可動電極２ｃには、可動ロツド２ｄの
一端部が結合し、この可動ロツド２ｄの他端部
は、軸受２ｅを通して真空容器２ａの外部に導出
している。またこの可動ロツド２ｄの導出端部に
は、ボルト２ｈが取付けられている。このボルト
２ｈには、常開バネ２ｆ及びこれを受ける閉路用
座金２g1及び開路用座金２g2が挿通されている。 As shown in FIG. 2, this vacuum valve 2 consists of a cylindrical vacuum container 2a, a fixed electrode 2b and a movable electrode 2.
It has a structure in which the two parts are housed so that they can collide with each other. One end of a movable rod 2d is connected to the movable electrode 2c of the vacuum valve 2, and the other end of the movable rod 2d is led out of the vacuum vessel 2a through a bearing 2e. Further, a bolt 2h is attached to the leading end of the movable rod 2d. A normally open spring 2f, a circuit-closing washer 2g1 , and a circuit-opening washer 2g2 that receive the normally open spring 2f are inserted into the bolt 2h.
一方、軸４に取付けられた絶縁レバー５は、端
部が球面状に形成された当接部５ａを有し、この
当接部５ａには貫通孔５ｂが設けられこの当接部
５ａは前記閉路用座金２g1と開路用座金２g2との
間で、その貫通孔５ｂに前記ボルト２ｈ挿通され
ている。ここで軸４が回動すると、この軸４に取
付けられた絶縁レバー５は回動し、その当接部５
ａは閉路用座金２g1、開路用座金２g2と当接し
て、可動電極２ａを可動させ開閉動作を行なう。
第１図において、MCは軸４を動作せしめる操作
機構部であり、この操作機構部MCのフレームは
箱状で、前記真空バルブ部VCの絶縁バリヤ１の
側面に取付けられている。ここで、６は操作機構
部MCの駆動源としての回動軸であり、この回動
軸６の一端部には操作ハンドル７が直角に取付け
られている。そして、この操作ハンドル７の回動
は、操作機構部MCの回動軸６を動作し、そして
トグルバネ機構によりシヤフトレバー８を駆動す
る。よつてシヤフトレバー８が駆動されることに
より、シヤフトレバー８の端部に貫通して取付け
られた軸４を回動する。 On the other hand, the insulating lever 5 attached to the shaft 4 has an abutting part 5a having a spherical end, and a through hole 5b is provided in the abutting part 5a. The bolt 2h is inserted into the through hole 5b between the circuit-closing washer 2g1 and the circuit-opening washer 2g2 . When the shaft 4 rotates, the insulating lever 5 attached to the shaft 4 rotates, and its abutting portion 5
A contacts the circuit-closing washer 2g 1 and the circuit-opening washer 2g 2 to move the movable electrode 2a and perform opening/closing operations.
In FIG. 1, MC is an operating mechanism section that operates the shaft 4. The frame of this operating mechanism section MC is box-shaped and is attached to the side surface of the insulation barrier 1 of the vacuum valve section VC. Here, reference numeral 6 denotes a rotation shaft as a drive source of the operating mechanism section MC, and an operation handle 7 is attached to one end of this rotation shaft 6 at right angles. The rotation of the operation handle 7 operates the rotation shaft 6 of the operation mechanism section MC, and drives the shaft lever 8 by the toggle spring mechanism. When the shaft lever 8 is driven, the shaft 4 that is attached to the end of the shaft lever 8 is rotated.
また９はこの真空しや断器が収納して取付けら
れる配電盤等の取付パネルであり、１０はこの真
空しや断器の正面板で、１１はこの真空しや断器
を正面板９を介して取付パネル８に取付ける取付
ネジである。 Further, 9 is a mounting panel of a power distribution board or the like in which this vacuum shield/disconnector is housed and installed, 10 is a front plate of this vacuum shield/disconnector, and 11 is a mounting panel for installing this vacuum shield/disconnector through the front plate 9. These are mounting screws that are attached to the mounting panel 8.
次に、操作機構部MCの詳細について、第３図
を参照して説明する。第３図において、回動軸６
は、その取付パネル９側の軸方向一端部にハンド
ル７を取付けており（第１図参照）、また、同じ
く軸方向端部にはレバー１２の一端部を固定して
いる。このレバー１２の他端部には切込み１２ａ
が設けられている。また、レバー１３の一端部に
は穴１３ａが形成され且つ他端部には切込み部１
３ｂが形成されている。トグルバネ１４の両端部
には係止用環１４ａ，１４ｂが設けられている。
そして、レバー１２の切込み部１２ａとレバー１
３の穴１３ａとトグルバネ１４の環１４ａとは、
同位置に配置され且つピン１５が挿通されてい
る。これにより、レバー１２，１３は、ピン１５
を回動中心として、トグルバネ１４に付勢されつ
つ回動できるようになつている。またレバー１３
の他端部に設けられた切込み部１３ｂは、この操
作機構部MCのフレームに固着したピン１６と嵌
合している。そして、このピン１６はレバー１３
の回動の中心となつている。このレバー１３の中
間部位には、リンク１７の一端部がピン１８によ
り回動自在に取付けられている。そして、このリ
ンク１７の他端部とリンク１９の一端部とは、ピ
ン２０ａにより回動自在に取付けられている。こ
のリンク１７とリンク１９とを枢支するピン２０
ａには、前記トグルバネ１４の他端部の環１４ｂ
が取付けられている。一方、リンク１９の他端部
と、シヤフトレバー８の一端部とは、ピン２０ｂ
により枢支されている。そして、このシヤフトレ
バー８の他端部には、前記真空バルブ部VCの軸
４が直角にして固定されている。 Next, details of the operating mechanism section MC will be explained with reference to FIG. 3. In Fig. 3, the rotation axis 6
has a handle 7 attached to one end in the axial direction on the side of the mounting panel 9 (see FIG. 1), and also has one end of a lever 12 fixed to the end in the axial direction. The other end of this lever 12 has a notch 12a.
is provided. Further, a hole 13a is formed at one end of the lever 13, and a notch 1 is formed at the other end.
3b is formed. Locking rings 14a and 14b are provided at both ends of the toggle spring 14.
Then, the notch 12a of the lever 12 and the lever 1
The hole 13a of No. 3 and the ring 14a of the toggle spring 14 are as follows.
They are arranged at the same position and the pin 15 is inserted through them. As a result, the levers 12 and 13 are moved to the pin 15.
It is designed to be able to rotate while being biased by a toggle spring 14 with the rotation center being . Also lever 13
A notch 13b provided at the other end fits into a pin 16 fixed to the frame of the operating mechanism section MC. And this pin 16 is the lever 13
It is the center of rotation. One end of a link 17 is rotatably attached to an intermediate portion of the lever 13 by a pin 18. The other end of the link 17 and one end of the link 19 are rotatably attached by a pin 20a. A pin 20 that pivots between the link 17 and the link 19
a, a ring 14b at the other end of the toggle spring 14;
is installed. On the other hand, the other end of the link 19 and one end of the shaft lever 8 are connected to the pin 20b.
It is supported by The shaft 4 of the vacuum valve section VC is fixed at a right angle to the other end of the shaft lever 8.
次にこのような構成の操作機構部MCの動作に
ついて説明する。第３図は閉路ON状態を示して
おり、このON状態から操作機構部MCを操作ハ
ンドル７を操作して開路OFF状態にするには次
のようにする。即ち、操作ハンドル７を操作して
回動軸６を反時計方向“イ”に回動すると、この
回動軸６に固定されたレバー１２も同様に反時計
方向“ロ”に回動する。これと共に、レバー１３
は、トグルバネ１４に抗してピン１６を中心に時
計方向“ハ”に回動する。このとき、レバー１３
のピン１５とピン１６とを結ぶ線上が、リンク１
７のピン１８とピン２０ａとを結ぶ線上を超え
る、つまりトグルバネ１４のデツドポイントを超
えると、トグルバネ１４の張力により、リンク１
７は、ピン１８を中心に反時計方向“ニ”に回動
する。よつて、このリンク１７の図示“ニ”方向
への回動に伴つて、リンク１９及びシヤフトレバ
ー８は、図示方向“ホ”に回動する。この場合、
シヤフトレバー８は、真空バルブ部VCに軸支さ
れた軸４を反時計方向“ヘ”に回動する。この軸
４の回動により、第２図に示す絶縁レバー５は、
軸４を中心に運動（紙面の左右方向）し、開路用
座金２g2を圧迫して可動電極２ｃを固定電極２ｂ
から開離する。同様にして開路OFF状態を閉路
ON状態にするには、操作ハンドル７を時計方向
に操作し、よつてこの操作による回動軸６の時計
方向の回動により、シヤフトレバー８を回動し、
よつて軸４及び絶縁レバー５の回動により閉路用
座金２g1を圧迫して可動電極２ｃを固定電極２ｂ
に接合する。 Next, the operation of the operating mechanism section MC having such a configuration will be explained. FIG. 3 shows the closed circuit ON state, and from this ON state, the operating mechanism section MC can be turned into the open circuit OFF state by operating the operating handle 7 as follows. That is, when the operating handle 7 is operated to rotate the rotation shaft 6 in the counterclockwise direction "A", the lever 12 fixed to the rotation shaft 6 is similarly rotated in the counterclockwise direction "B". Along with this, lever 13
rotates clockwise about the pin 16 against the toggle spring 14. At this time, lever 13
The line connecting pins 15 and 16 is link 1
When the line connecting the pin 18 and the pin 20a of 7 is exceeded, that is, the dead point of the toggle spring 14 is exceeded, the tension of the toggle spring 14 causes the link 1 to
7 rotates counterclockwise around the pin 18. Therefore, as the link 17 rotates in the direction "D" in the drawing, the link 19 and the shaft lever 8 rotate in the direction "E" in the drawing. in this case,
The shaft lever 8 rotates the shaft 4, which is pivotally supported by the vacuum valve section VC, in a counterclockwise direction. Due to this rotation of the shaft 4, the insulating lever 5 shown in FIG.
The movable electrode 2c moves around the shaft 4 (in the left-right direction on the page) and presses the opening washer 2g2 to move the movable electrode 2c to the fixed electrode 2b.
Separate from. In the same way, the open circuit OFF state is closed.
To turn on the ON state, operate the operating handle 7 clockwise, and then rotate the shaft lever 8 by rotating the rotating shaft 6 clockwise due to this operation.
Therefore, the rotation of the shaft 4 and the insulating lever 5 presses the circuit closing washer 2g1 , thereby changing the movable electrode 2c to the fixed electrode 2b.
to be joined to.
背景技術の問題点
上記構成の真空しや断器において閉路状態ON
では、第４図に示すように、絶縁レバー５の当接
部５ａとボルト２ｇの作用線との交点は、閉路用
座金２g1の近傍の点Ｘに存在し、当接部５a1が開
路用座金２g2におよぼす作用力の方向は、前記ボ
ルト２ｈの作用線と一致している。そして、絶縁
レバー５が、軸４の中心点Ｄを中心に回動する
と、即ち、開路状態OFFになると絶縁レバー５
の当接部５ａと、ボルト２ｈの作用線との交点
は、点Ｘから点Ｙに変位する。この作用線との交
点の変位に伴つて、閉路状態での作用力P〓1は、
ベクトルP〓2が作用して点Ｘから点Ｙに変位し、
開路状態では作用P〓3となる。一方、開路用座金
２g2に当接する絶縁レバー５の当接部５a2は図の
如く球面に形成されているため、前記ベクトル
P〓2は軸受２ｅを中心に、ボルト２ｈに作用する。
このとき、絶縁レバー５の貫通孔５ｂの内壁端に
ボルト２ｈが接触するまで傾斜し、よつて可動電
極２ｃに連結した可動ロツド２ｄと軸受２ｅとの
はめ合部には間隙ｅが生じる。このため、開路状
態OFFでの固定電極２ｂと可動電極２ｃとの接
点ギヤツプが所定値にならず、しや断特性が低下
し、また可動ロツド２ｄと軸受２ｅの異常な摩
耗、ボルト２ｈの曲り等の不具合が生じ、真空バ
ルブの寿命を低下させる原因となつていた。Problems with the background technology The closed circuit state is ON in the vacuum circuit breaker with the above configuration.
Now, as shown in FIG. 4, the intersection of the contact portion 5a of the insulating lever 5 and the line of action of the bolt 2g exists at a point X near the closing washer 2g1 , and the contact portion 5a1 is open. The direction of the force acting on the washer 2g2 coincides with the line of action of the bolt 2h. When the insulating lever 5 rotates around the center point D of the shaft 4, that is, when the insulating lever 5 becomes OFF, the insulating lever 5
The intersection between the contact portion 5a and the line of action of the bolt 2h is displaced from point X to point Y. With the displacement of the intersection with this line of action, the acting force P〓 1 in the closed circuit state is
The vector P〓 2 acts, displacing from point X to point Y,
In the open circuit state, the effect is P〓 3 . On the other hand, since the contact portion 5a 2 of the insulating lever 5 that contacts the opening washer 2g 2 is formed into a spherical surface as shown in the figure, the above-mentioned vector
P〓 2 acts on the bolt 2h, centering on the bearing 2e.
At this time, the bolt 2h is inclined until it comes into contact with the inner wall end of the through hole 5b of the insulating lever 5, so that a gap e is created at the fitting portion between the movable rod 2d connected to the movable electrode 2c and the bearing 2e. For this reason, the contact gap between the fixed electrode 2b and the movable electrode 2c in the open state OFF does not reach a predetermined value, the shearing characteristics deteriorate, and the movable rod 2d and bearing 2e are abnormally worn, and the bolt 2h is bent. These problems occur, which shortens the life of the vacuum valve.
発明の目的
本発明は上記事情にかんがみてなされたもの
で、しや断特性が良好にし得、且つ開閉器本体を
長寿命化し得る開閉装置を提供することを目的と
する。OBJECTS OF THE INVENTION The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a switchgear that can have good shearing characteristics and extend the life of the switch main body.
発明の実施例
以下本発明の一実施例を図面を参照して説明す
る。第５図は本発明による開閉装置の一実施例で
ある。真空しや断器の絶縁レバー２１を示す構成
図である。第５図に示す絶縁レバー２１は、ボル
ト２ｈの作用線と開路状態OFF時の絶縁レバー
２１の当接部２１ａが直角となるように、この当
接部２１ａに、前記作用線に対して角度αだけ切
込んだ平面を形成した構成としたものである。
尚、本発明による一実施例であるこの真空しや断
器は、絶縁レバー２１を除いては従来の真空しや
断器の構成及び動作と同一なので、その説明は省
略し異なる点のみを説明する。即ち、前記絶縁レ
バー２１を用いた真空しや断器の動作について第
６図及び第３図を参照して説明する。第３図に示
した操作機構部MCの回動軸６を回動し、トグル
バネ１４のデツドポイントを超えているシヤフト
レバー８は軸４を中心に反時計方向に回動する。
この軸４に取付けられた絶縁レバー２１の当接部
２１ａを回動する。開路用座金２g2に接する開路
側の当接部２１a2は、角度αだけ切込みで平面が
形成されているので、この当接部２１a2の平面は
開路用座金２g2の平面に当接する。Embodiment of the Invention An embodiment of the present invention will be described below with reference to the drawings. FIG. 5 shows an embodiment of the opening/closing device according to the present invention. FIG. 2 is a configuration diagram showing an insulating lever 21 of a vacuum shield breaker. The insulating lever 21 shown in FIG. 5 has an angle at the abutting portion 21a with respect to the line of action so that the line of action of the bolt 2h and the abutting portion 21a of the insulating lever 21 in the open state OFF are at right angles. The structure is such that a flat surface is cut by α.
This vacuum shield breaker, which is an embodiment of the present invention, has the same structure and operation as a conventional vacuum shield breaker except for the insulating lever 21, so a description thereof will be omitted and only the differences will be explained. do. That is, the operation of the vacuum shield breaker using the insulating lever 21 will be explained with reference to FIGS. 6 and 3. The shaft lever 8, which is rotated about the rotation shaft 6 of the operating mechanism section MC shown in FIG. 3 and has exceeded the dead point of the toggle spring 14, is rotated counterclockwise about the shaft 4.
The contact portion 21a of the insulating lever 21 attached to this shaft 4 is rotated. The opening-side abutting portion 21a 2 that contacts the opening washer 2g 2 has a flat surface formed by cutting an angle α, so the flat surface of the contacting portion 21a 2 comes into contact with the flat surface of the opening washer 2g 2 .
この時、絶縁レバー２１の当接部２１ａとボル
ト２ｈの作用線との交点は点Ｘから点Ｙに変位す
るが、ボルト２ｈの作用線と、絶縁レバー２１の
平面は直角に交差するため、ボルト２ｈはその軸
線方向のみに応力が作用する。従つて、この開路
用座金２g2の圧迫によりボルト２ｈ及び可動ロツ
ド２ｄが可動しよつて可動電極２ｃは固定電極２
ｂから開離する。尚、本発明は上記実施例に限定
されるものではなく、絶縁レバー２１の当接部２
１ａの形成は、作用力の方向がボルト２ｈの軸方
向に一致する形状である条件で、種々変形して実
施できるものである。 At this time, the intersection between the contact portion 21a of the insulating lever 21 and the line of action of the bolt 2h is displaced from point X to point Y, but since the line of action of the bolt 2h and the plane of the insulating lever 21 intersect at right angles, Stress acts on the bolt 2h only in its axial direction. Therefore, the bolt 2h and the movable rod 2d are moved by the pressure of the opening washer 2g2 , and the movable electrode 2c is moved to the fixed electrode 2.
Separate from b. It should be noted that the present invention is not limited to the above-described embodiment, and the contact portion 2 of the insulating lever 21
The shape of the bolt 1a can be modified in various ways, provided that the direction of the applied force matches the axial direction of the bolt 2h.
発明の効果
以上述べた本発明によれば、しや断器特性が良
好して、且つ開閉器本体が長寿命の開閉装置が提
供できる。Effects of the Invention According to the present invention described above, it is possible to provide a switchgear which has good breaker characteristics and whose main body has a long life.
第１図は従来の可動バネ操作型の真空しや断器
を示す概略の構成図、第２図は第１図に示した真
空しや断器の閉路状態での構成図、第３図は第１
図に示した真空しや断器の操作機構図、第４図は
第１図に示した真空しや断器の開路状態での構成
図、第５図は本発明の一実施例であるしや断器の
絶縁レバーを示す構成図、第６図は本発明の一実
施例である真空しや断器の動作を説明するための
図である。
MC……真空バルブ部、MC……操作機構部、
１……絶縁バリヤー、２……真空バルブ、３……
端子、４……軸、５……絶縁レバー、６……回動
軸、７……操作ハンドル、８……シヤフトレバ
ー、９……取付パネル、１０……正面板、１１…
…取付ネジ、１２，１３……レバー、１４……ト
グルバネ、１５，１６，１８，２０ａ，２０ｂ…
…ピン、１７，１９……リンク、２１……絶縁レ
バー。
Figure 1 is a schematic configuration diagram showing a conventional movable spring-operated vacuum shield disconnector, Figure 2 is a configuration diagram of the vacuum shield disconnector shown in Figure 1 in a closed state, and Figure 3 is a diagram showing the configuration of the vacuum shield disconnector shown in Figure 1. 1st
Figure 4 is a diagram of the operating mechanism of the vacuum shield and disconnector shown in Figure 1, Figure 4 is a configuration diagram of the vacuum shield and disconnector shown in Figure 1 in an open state, and Figure 5 is an embodiment of the present invention. FIG. 6 is a block diagram showing the insulating lever of the vacuum shield and disconnector, and FIG. 6 is a diagram for explaining the operation of the vacuum shield and disconnector which is an embodiment of the present invention. MC...vacuum valve section, MC...operation mechanism section,
1...Insulation barrier, 2...Vacuum valve, 3...
Terminal, 4... Shaft, 5... Insulating lever, 6... Rotating shaft, 7... Operating handle, 8... Shaft lever, 9... Mounting panel, 10... Front plate, 11...
...Mounting screw, 12, 13...Lever, 14...Toggle spring, 15, 16, 18, 20a, 20b...
...Pin, 17, 19...Link, 21...Insulation lever.
Claims (1)
と、真空容器内に固定電極及びこれに接離可能に
可動電極を設けた真空バルブと、この真空バルブ
の真空容器に貫通され前記可動電極と一体的に動
作する棒体と、この棒体に挿通され閉路状態にあ
つて前記可動電極に圧縮力を作用させる常開バネ
と、前記棒体に挿通され前記常開バネの端部を受
ける第１の板体と、この第１の板体に対向して前
記棒体に挿通される第２の板体と、一端部は前記
操作機構部の出力軸に取付けられ、他端部は球面
状に形成されて前記第１の板体および前記第２の
板体に当接する当接部を有し、この当接部には貫
通孔が設けられ、前記第１の板体と前記第２の板
体との間にあつて前記貫通孔に前記棒体が挿通さ
れてなる絶縁レバーとを有してなる開閉装置にお
いて、前記絶縁レバーを、前記棒体の作用線と、
前記真空バルブが開路状態における前記当接部と
が直角となるように、当該当接部に所定角度に切
込んだ平面を形成したものとしたことを特徴とす
る開閉装置。1. An operating mechanism part whose output shaft rotates by a drive source, a vacuum valve having a fixed electrode in a vacuum container and a movable electrode that can be attached to and detached from the fixed electrode, and a vacuum valve that penetrates the vacuum container of the vacuum valve and has the movable electrode a rod that operates integrally with the electrode; a normally open spring that is inserted through the rod and applies a compressive force to the movable electrode when in a closed circuit state; and an end portion of the normally open spring that is inserted through the rod. a second plate that faces the first plate and is inserted through the rod, one end of which is attached to the output shaft of the operating mechanism, and the other end of which is attached to the output shaft of the operating mechanism; It has a contact part that is formed in a spherical shape and comes into contact with the first plate and the second plate, and the contact part is provided with a through hole so that the first plate and the second plate can contact each other. In the opening/closing device, the insulating lever is provided between a second plate and the rod is inserted into the through hole, and the insulating lever is connected to the line of action of the rod;
An opening/closing device characterized in that a plane cut at a predetermined angle is formed in the abutting portion so that the abutting portion is perpendicular to the abutting portion when the vacuum valve is in an open state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19226381A JPS5894728A (en) | 1981-11-30 | 1981-11-30 | Switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19226381A JPS5894728A (en) | 1981-11-30 | 1981-11-30 | Switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5894728A JPS5894728A (en) | 1983-06-06 |
| JPS6367725B2 true JPS6367725B2 (en) | 1988-12-27 |
Family
ID=16288372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19226381A Granted JPS5894728A (en) | 1981-11-30 | 1981-11-30 | Switching device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5894728A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01170825U (en) * | 1988-05-20 | 1989-12-04 |
-
1981
- 1981-11-30 JP JP19226381A patent/JPS5894728A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01170825U (en) * | 1988-05-20 | 1989-12-04 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5894728A (en) | 1983-06-06 |
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