JPS6210915Y2 - - Google Patents

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Publication number
JPS6210915Y2
JPS6210915Y2 JP1980163202U JP16320280U JPS6210915Y2 JP S6210915 Y2 JPS6210915 Y2 JP S6210915Y2 JP 1980163202 U JP1980163202 U JP 1980163202U JP 16320280 U JP16320280 U JP 16320280U JP S6210915 Y2 JPS6210915 Y2 JP S6210915Y2
Authority
JP
Japan
Prior art keywords
spring
vacuum switch
bell crank
arm
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
Application number
JP1980163202U
Other languages
Japanese (ja)
Other versions
JPS5784639U (en
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 filed Critical
Priority to JP1980163202U priority Critical patent/JPS6210915Y2/ja
Publication of JPS5784639U publication Critical patent/JPS5784639U/ja
Application granted granted Critical
Publication of JPS6210915Y2 publication Critical patent/JPS6210915Y2/ja
Expired legal-status Critical Current

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Description

【考案の詳細な説明】 本考案は真空スイツチの開閉機構特に負荷時タ
ツプ切換器用切換開閉器におけるように、常開
(常に開極しようとする)状態に構成された真空
スイツチをベルクランクを介してカムで開閉する
開閉機構の改良に関するものである。
[Detailed description of the invention] The present invention is a vacuum switch opening/closing mechanism, in particular, a vacuum switch configured to be in a normally open state (always trying to open), such as in a changeover switch for a tap changer on load, via a bell crank. This invention relates to an improvement in the opening/closing mechanism that opens and closes with a cam.

この式の開閉機構としては、例えば、第1図に
示すものが良く知られている。図中、1は固定接
触子棒11と可動接触棒12とを有する真空スイ
ツチ、2は可動接触子棒12上に設けられた第1
の係合つば121と第2の係合つば122との間
に遊挿されたばね受、3は真空スイツチ1の閉極
時の接触荷重を補足するために、第1の係合つば
121とばね受2との間に挿入された接圧用押ば
ね、4は真空スイツチ1を常開状態にするため
に、静止物9とばね受2との間に挿入された開極
用押ばね、5は固定ピン6に枢着されたベルクラ
ンク、7は外周面に凹凸を有する板カム、8はカ
ム軸である。ベルクランク5は固定ピン6を中心
として、互いにほぼ直角を成す第1の腕51と第
2の腕52とを有し、第1の腕51はベルクラン
ク5の反時計方向の動きでばね受2と係合して上
方向に駆動する。また、第2の腕52はその先端
に設けられたカムフオロワー521が、カム7に
追随できるよう配置されている。
As an example of this type of opening/closing mechanism, the one shown in FIG. 1 is well known. In the figure, 1 is a vacuum switch having a fixed contact bar 11 and a movable contact bar 12, and 2 is a first vacuum switch provided on the movable contact bar 12.
A spring receiver 3 is loosely inserted between the engaging flange 121 and the second engaging flange 122 of the vacuum switch 1. 4 is a contact pressure spring inserted between the spring receiver 2, 4 is an opening pressure spring inserted between the stationary object 9 and the spring receiver 2, and 5 is an opening pressure spring to keep the vacuum switch 1 in a normally open state. A bell crank is pivotally connected to a fixing pin 6, 7 is a plate cam having irregularities on its outer peripheral surface, and 8 is a cam shaft. The bell crank 5 has a first arm 51 and a second arm 52 that are substantially perpendicular to each other around the fixed pin 6, and the first arm 51 is rotated by a counterclockwise movement of the bell crank 5. 2 and drive upward. Further, the second arm 52 is arranged so that a cam follower 521 provided at its tip can follow the cam 7.

ベルクランク5の斜視図を第2図に示す。開極
ばね4は真空スイツチ1の自閉力よりも大きいば
ね力を有しており、このばね力はばね受2を介し
て、可動接触子棒12とベルクランク5とに伝達
され、これにより可動接触子棒12は下降方向
の、また、ベルクランク5は時計回転方向の駆動
力を受ける。抗力として真空自閉力しかもたない
可動接触子棒12は、開極ばね4のばね力に抗す
ることができないから、ベルクランク5がこのば
ね力を支承する位置、すなわちカムフオロワー5
21がカム7に接触してベルクランク5がそれ以
上時計方向に回転しなくなる位置まで下降してい
る。すなわち、真空スイツチ1はベルクランク5
でばね受2を支承しない限り常に開極しようとす
る、いわゆる常開状態にある。
A perspective view of the bell crank 5 is shown in FIG. The opening spring 4 has a spring force greater than the self-closing force of the vacuum switch 1, and this spring force is transmitted to the movable contact rod 12 and the bell crank 5 via the spring receiver 2, thereby The movable contact rod 12 receives a driving force in a downward direction, and the bell crank 5 receives a driving force in a clockwise direction. Since the movable contact rod 12, which has only vacuum self-closing force as a drag force, cannot resist the spring force of the opening spring 4, the bell crank 5 is located at the position where this spring force is supported, that is, the cam follower 5.
21 comes into contact with the cam 7 and the bell crank 5 has descended to the position where it no longer rotates clockwise. That is, the vacuum switch 1 is connected to the bell crank 5.
Unless the spring support 2 is supported, the terminal is in a so-called normally open state in which it always attempts to open.

而して、カムフオロワー521がカム7の凹部
にあるとき(図はこのときの状態を示している)
はベルクランク5は時計方向回転の極限に、従つ
て可動接触子棒12は下降方向の極限にあり、真
空スイツチ1は最大に開極している。これよりカ
ム7が回転して、その凸部がカムフオロワー52
1に向えば、ベルクランク5は反時計方向回転を
始め、これによりばね受2が開極用押ばね4を圧
縮しながら上昇を始め、可動接触子棒12も真空
自閉力により上昇を始める。可動接触子棒12が
固定接触子棒11に当接すれば、そのあとはばね
受2のみが接圧ばね3をも圧縮しながら上昇させ
られる。カムフオロワー521がカムの凸部頂上
に達すれば、ベルクランク5の反時計方向への動
きは停止し、ばね受2の上昇も停止して真空スイ
ツチの閉極動作を終える。真空スイツチ1は真空
自閉力と接圧用押ばね3のばね力とを合せた接触
荷重での閉極状態を維持する。
Thus, when the cam follower 521 is in the recess of the cam 7 (the figure shows this state)
In this case, the bell crank 5 is at its extreme clockwise rotation, the movable contact bar 12 is at its downward extreme, and the vacuum switch 1 is at its maximum opening. The cam 7 rotates from this, and its convex portion becomes the cam follower 52.
1, the bell crank 5 starts to rotate counterclockwise, and as a result, the spring receiver 2 starts to rise while compressing the contact opening push spring 4, and the movable contact rod 12 also starts to rise due to the vacuum self-closing force. . When the movable contact bar 12 comes into contact with the fixed contact bar 11, only the spring receiver 2 is then raised while also compressing the contact pressure spring 3. When the cam follower 521 reaches the top of the convex portion of the cam, the counterclockwise movement of the bell crank 5 stops, the rise of the spring receiver 2 also stops, and the closing operation of the vacuum switch is completed. The vacuum switch 1 maintains a closed state under a contact load that is a combination of the vacuum self-closing force and the spring force of the contact pressure spring 3.

しかしながら、このような従来の開閉機構は真
空スイツチの高さ、ばね部の高さ、ベルクランク
の高さが直列的な配列になつているため、装置が
大形化することが避けられなかつた。
However, in such a conventional opening/closing mechanism, the height of the vacuum switch, the height of the spring part, and the height of the bell crank are arranged in series, which inevitably increases the size of the device. .

本考案は、このような欠点を除去するために成
されたもので、ばね受から真空スイツチの側へ突
出した腕にベルクランクの第1の腕を係合着力す
ることにより、ばね部の高さとベルクランクの高
さとが並列的配列になるようにして、全体を小形
化した真空スイツチの開閉機構を提供するもので
ある。
The present invention has been developed to eliminate such drawbacks, and the height of the spring portion is increased by engaging and attaching the first arm of the bell crank to the arm protruding from the spring holder toward the vacuum switch. To provide an opening/closing mechanism for a vacuum switch whose overall size is reduced by arranging the height of the vacuum switch and the height of the bell crank in parallel.

以下、本考案の一実施例を示す第3図〜第5図
により本考案の詳細について説明する。図におい
て、1,11,12,121,122,3,4,
5,51,52,521,6,7,8,は第1図
と同様である。13はばね受で、開極ばね4の外
側を真空スイツチ1の側へ突出した支持腕131
を有したU字形を成しており、その支持腕131
の先端に係合ピン132を備えている。そして、
ベルクランク5の第1の腕51の先端に設けられ
た係合溝511にこの係合ピン132が係合され
ることによつて、ベルクランク5のばね受13へ
の係合着力が成されている。14はこの機構ベー
スに着脱可能なユニツトベース、15,16はこ
のユニツトベース14に起立した絶縁枠と、その
端部に取付られた保持板であり、真空スイツチ1
は、この保持板16に取付けられている。17は
真空スイツチの可動接触子棒12の下端を、ガイ
ドするとともに、可動接触子棒12が所定のスト
ローク下降したときに、係合つば122に当接し
て可動接触子棒12のそれ以上の下降を阻止する
ストツパ、18はこのストツパ17をユニツトベ
ース14に固定する枠体である。181はばね受
の係合ピン132が左右に振れないで、上下する
よう案内するガイド溝である。
Hereinafter, details of the present invention will be explained with reference to FIGS. 3 to 5 showing one embodiment of the present invention. In the figure, 1, 11, 12, 121, 122, 3, 4,
5, 51, 52, 521, 6, 7, 8, are the same as in FIG. Reference numeral 13 denotes a spring holder, and a support arm 131 projects from the outside of the opening spring 4 toward the vacuum switch 1.
It has a U-shape with a supporting arm 131.
An engagement pin 132 is provided at the tip. and,
By engaging the engagement pin 132 with the engagement groove 511 provided at the tip of the first arm 51 of the bell crank 5, the engagement force of the bell crank 5 to the spring receiver 13 is achieved. ing. Reference numeral 14 indicates a unit base that can be attached to and detached from this mechanism base, and 15 and 16 indicate an insulating frame that stands up on this unit base 14 and a holding plate attached to its end.
is attached to this holding plate 16. 17 guides the lower end of the movable contact bar 12 of the vacuum switch, and when the movable contact bar 12 descends by a predetermined stroke, it comes into contact with the engaging collar 122 and prevents the movable contact bar 12 from further descending. The stopper 18 is a frame body that fixes the stopper 17 to the unit base 14. 181 is a guide groove that guides the engagement pin 132 of the spring receiver so that it moves up and down without swinging left and right.

以上の説明のように、本案の開閉機構はカムフ
オロワーのばね受への着力点が少し移動はしてい
るが、それ以外の構成要素の組合せ等には何ら実
質的な変化がないから、第1図の従来の実施例の
説明と同様にして作動しうること、すなわち、カ
ムフオロワーがカムの凹部にあれば真空スイツチ
が開極し、凸部にあれば閉極しうることは改めて
説明するまでもない。
As explained above, in the opening/closing mechanism of the present invention, although the point of force applied to the spring receiver of the cam follower has moved slightly, there is no substantial change in the combination of other components. It goes without saying that the vacuum switch can operate in the same manner as described in the conventional embodiment shown in the figure, that is, if the cam follower is in the concave part of the cam, the vacuum switch is opened, and if it is in the convex part, the vacuum switch can be closed. do not have.

本考案の開閉機構によれば、ベルクランクのば
ね受への係合着力点が真空スイツチの側へ引上げ
られて、ベルクランクの高さとばね部の高さが並
列配置となるから、装置全体の高さが縮小できる
という効果が生ずる。
According to the opening/closing mechanism of the present invention, the engagement force point of the bell crank to the spring receiver is pulled up to the vacuum switch side, and the height of the bell crank and the height of the spring part are arranged in parallel, so that the entire device is The effect is that the height can be reduced.

実施例では接圧用押ばねを備えた場合について
説明したが、接触荷重が真空自閉力のみで足りる
場合にはこれを省いても良い。また、接圧用押ば
ねを可動接触子棒とばね受との間に挿入したが、
代りに可動接触子棒と静止物との間に挿入しても
よい。この場合には開極用押ばねのばね力を真空
スイツチの自閉力と接圧用押ばねのばね力との合
計よりも大きくする必要がある。
In the embodiment, a case has been described in which a pressure spring for contact pressure is provided, but this may be omitted if the contact load is only a vacuum self-closing force. In addition, a pressure spring for contact pressure was inserted between the movable contact rod and the spring receiver, but
Alternatively, it may be inserted between the movable contact rod and a stationary object. In this case, it is necessary to make the spring force of the opening pressure spring larger than the sum of the self-closing force of the vacuum switch and the spring force of the contact pressure spring.

また、実施例では、真空スイツチ、ばね受接圧
用押ばね開極用押ばねを機構ベース9に着脱可能
なユニツトベース14上に組立てて、これらを簡
単に一括交換できるように構成されているが、交
換の必要性がない場合にはユニツトベース14を
省いて、これらを機構ベース9に直接取付するよ
うにしてもよい。この場合には、ユニツトベース
14の下方のストツパ17を除くこともできる
し、カムフオロワーの第1の腕の一端開放形係合
溝を係合穴にすることもできる。係合穴の場合に
は枠体に係合ピン用ガイド溝を設ける必要もなく
なる。
In addition, in the embodiment, the vacuum switch, the spring receiving contact pressure spring, and the contact opening pressure spring are assembled on the unit base 14 which is detachable from the mechanism base 9, so that they can be easily replaced all at once. If there is no need for replacement, the unit base 14 may be omitted and these may be directly attached to the mechanism base 9. In this case, the stopper 17 below the unit base 14 can be omitted, or the engagement groove with one end open in the first arm of the cam follower can be used as an engagement hole. In the case of an engagement hole, there is no need to provide an engagement pin guide groove in the frame.

また、実施例ではU字形の一体成形ばね受を使
用しているが、代りにばね受13とベルクランク
5の第1の腕51とを第6図に示すようにリンク
19で連結するようにしてもよい。しかし、U字
形ばね受は鉄板を曲げる等して簡単に製作できる
し、部品点数も少ないからこの方が実用的であ
る。
Further, in the embodiment, a U-shaped integrally molded spring bearing is used, but instead, the spring bearing 13 and the first arm 51 of the bell crank 5 are connected by a link 19 as shown in FIG. You can. However, a U-shaped spring holder can be easily manufactured by bending an iron plate, and has fewer parts, so it is more practical.

また、ばね受に設けられた係合ピンは、外向き
に取付けることもできるが、カシメ取付する場合
は、内向きの方が有利である。
Further, the engagement pin provided on the spring receiver can be attached outward, but in the case of caulking attachment, it is more advantageous to have the engagement pin facing inward.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来の方法による真空スイツチの開閉
機構の構成図、第2図は第1図の部分的斜視図、
第3図は本考案による真空スイツチの開閉機構の
一実施例を示す構成図、第4図は第3図の−
線の断面図、第5図は第3図の−線の断面
図、第6図は本考案による真空スイツチの開閉機
構の他の実施例を示す構成図である。 図において、1は真空スイツチ、11は固定接
触子棒、12は可動接触子棒、121は第1の係
合つば、122は第2の係合つば、3,4はば
ね、5はベルクランク、7は板カム、9は静止
物、13はばね受、131は支持腕である。な
お、各図中同一符号は同一又は相当部分を示す。
Fig. 1 is a configuration diagram of a vacuum switch opening/closing mechanism according to the conventional method, Fig. 2 is a partial perspective view of Fig. 1,
FIG. 3 is a configuration diagram showing an embodiment of the vacuum switch opening/closing mechanism according to the present invention, and FIG.
FIG. 5 is a sectional view taken along the - line in FIG. 3, and FIG. 6 is a configuration diagram showing another embodiment of the vacuum switch opening/closing mechanism according to the present invention. In the figure, 1 is a vacuum switch, 11 is a fixed contact bar, 12 is a movable contact bar, 121 is a first engagement collar, 122 is a second engagement collar, 3 and 4 are springs, and 5 is a bell crank. , 7 is a plate cam, 9 is a stationary object, 13 is a spring receiver, and 131 is a support arm. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

【実用新案登録請求の範囲】 (1) 可動及び固定接触子棒と、上記可動接触子棒
の上記固定接触子棒に近い側に設けられた第1
の係合つばと、この第1の係合つばから所定の
距離をあけて設けられた第2の係合つばとを有
し静止物に固着された真空スイツチ、上記第2
の係合つばと係合され上記第1の係合つばの方
向に延在した支持腕を有するばね受、上記支持
腕の先端部と連結された第1の腕とこの第1の
腕と所定の角度を有しカムフオロワーが設けら
れた第2の腕とを有するベルクランク、上記カ
ムフオロワーと当接し上記ベルクランクを駆動
するカム、上記第1の係合つばと上記ばね受間
に介在する第1のばね、上記真空スイツチと上
記ばね受間に介在する第2のばねを備えた真空
スイツチの開閉機構。 (2) 真空スイツチ、ばね受、第1のばね及び第2
のばねは一体組立てされ、ベルクランクの第1
の腕と着脱可能に構成されていることを特徴と
する実用新案登録請求の範囲第1項記載の真空
スイツチの開閉機構。
[Scope of Claim for Utility Model Registration] (1) A movable and fixed contact bar, and a first contact bar provided on the side of the movable contact bar near the fixed contact bar.
a vacuum switch fixed to a stationary object, the vacuum switch having an engaging collar and a second engaging collar provided at a predetermined distance from the first engaging collar;
a spring receiver having a support arm that is engaged with the engagement collar and extends in the direction of the first engagement collar; a first arm that is connected to the distal end of the support arm; a bell crank having a second arm having a cam follower at an angle of A vacuum switch opening/closing mechanism comprising a spring and a second spring interposed between the vacuum switch and the spring receiver. (2) Vacuum switch, spring holder, first spring and second spring
The spring is assembled in one piece and is attached to the first bell crank.
The opening/closing mechanism for a vacuum switch according to claim 1, which is configured to be detachably attached to the arm of the user.
JP1980163202U 1980-11-13 1980-11-13 Expired JPS6210915Y2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1980163202U JPS6210915Y2 (en) 1980-11-13 1980-11-13

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1980163202U JPS6210915Y2 (en) 1980-11-13 1980-11-13

Publications (2)

Publication Number Publication Date
JPS5784639U JPS5784639U (en) 1982-05-25
JPS6210915Y2 true JPS6210915Y2 (en) 1987-03-14

Family

ID=29521997

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1980163202U Expired JPS6210915Y2 (en) 1980-11-13 1980-11-13

Country Status (1)

Country Link
JP (1) JPS6210915Y2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1114868A (en) * 1965-10-21 1968-05-22 Ass Elect Ind Improvements in or relating to electrical on-load tap-changers

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1114868A (en) * 1965-10-21 1968-05-22 Ass Elect Ind Improvements in or relating to electrical on-load tap-changers

Also Published As

Publication number Publication date
JPS5784639U (en) 1982-05-25

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