JPH0737210Y2

JPH0737210Y2 - Switch

Info

Publication number: JPH0737210Y2
Application number: JP12228889U
Authority: JP
Inventors: 健二秋元
Original assignee: Toshiba Corp
Current assignee: Toshiba Corp
Priority date: 1989-10-20
Filing date: 1989-10-20
Publication date: 1995-08-23
Anticipated expiration: 2004-10-20
Also published as: JPH0362417U

Description

【考案の詳細な説明】〔考案の目的〕（産業上の利用分野）本考案は可動導体を垂直に駆動する開閉器に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Use) The present invention relates to a switch for vertically driving a movable conductor.

（従来の技術）一般に、開閉器は一対の固定側導体及び可動側導体と、
この両導体間を開閉する可動導体とを備えている。この
開閉器の中には配置構成上可動導体を垂直に駆動させる
ものがある。(Prior Art) Generally, a switch includes a pair of fixed-side conductor and movable-side conductor,
And a movable conductor that opens and closes between the two conductors. Some of the switches cause the movable conductor to be driven vertically due to the arrangement configuration.

この場合、可動導体の操作力は接触部の摩擦力と可動導
体の重量を加味する必要がある。In this case, the operating force of the movable conductor needs to take into consideration the frictional force of the contact portion and the weight of the movable conductor.

また、開動作と閉動作とで操作力が異なり、可動導体の
重量が摩擦力より大きい場合、切動作時に可動導体が自
重により自然落下することになる。Further, when the operating force is different between the opening operation and the closing operation and the weight of the movable conductor is larger than the frictional force, the movable conductor naturally falls due to its own weight during the cutting operation.

このため、開動端にはストッパが設けられている。Therefore, a stopper is provided at the open end.

（考案が解決しようとする課題）このように従来の開閉器にあっては、閉動作時に可動導
体の重量を加えた大きな操作力が必要であり、開動作時
に可動導体が自然落下する虞れがあった。(Problems to be solved by the invention) As described above, in the conventional switch, a large operating force including the weight of the movable conductor is required during the closing operation, and the movable conductor may fall naturally during the opening operation. was there.

本考案は上記点を考慮して成されたもので、安全でかつ
操作力の小さな開閉器を提供することを目的とする。The present invention has been made in view of the above points, and an object thereof is to provide a switch which is safe and has a small operating force.

[Constitution of device]

（課題を解決するための手段）上記目的を達成するために本考案においては、回転によ
り可動導体を昇降させる主軸にぜんまいバネを固着して
いる。(Means for Solving the Problems) In order to achieve the above object, in the present invention, a mainspring spring is fixed to a main shaft that raises and lowers a movable conductor by rotation.

（作用）このように構成することにより、ぜんまいバネが開動作
時に可動導体の落下を防止するように作用し、閉動作時
に操作力を軽減するように作用する。(Operation) With this configuration, the mainspring spring acts to prevent the movable conductor from falling during the opening operation and to reduce the operating force during the closing operation.

（実施例）以下本考案の一実施例を第１図乃至第６図を参照して説
明する。第１図に示す如くSF₂ガス等の絶縁ガスを封入
した容器１内には、１対の固定側導体２及び可動側導体
３が垂直上下に対向して収納されている。さらに、両導
体2,3には、対向して固定側接触部４及び可動側接触部
５が夫々固着されている。(Embodiment) An embodiment of the present invention will be described below with reference to FIGS. 1 to 6. As shown in FIG. 1, a pair of fixed-side conductors 2 and movable-side conductors 3 are vertically opposed and housed in a container 1 in which an insulating gas such as SF ₂ gas is sealed. Further, a fixed side contact portion 4 and a movable side contact portion 5 are fixed to the conductors 2 and 3 so as to face each other.

また、可動側導体３内には、可動側接触部５と常時接触
し、垂直上下に移動し固定側接触部４と接離することで
両導体2,3間を開閉する可動導体６が収納されている。
この可動導体６には内側軸方向に沿ってラック７が固着
されている。In addition, a movable conductor 6 that is in constant contact with the movable side contact part 5 and moves vertically up and down to come in contact with and separate from the fixed side contact part 4 is opened and closed between the conductors 2 and 3 inside the movable side conductor 3. Has been done.
A rack 7 is fixed to the movable conductor 6 along the inner axial direction.

そして、容器１の側面には操作装置８の操作箱９が固着
されている。この操作箱９内には水平に延び手動または
モータ等により回転される主軸10の一側が収納されてい
る。また、操作箱９内の主軸10周りには第２図に示すぜ
んまいバネ11が巻回され、ぜんまいバネ11の内側端が主
軸10に固着されている。このぜんまいバネ11の外側端は
操作箱９内に固着した支持板12に固着されている。The operation box 9 of the operation device 8 is fixed to the side surface of the container 1. The operation box 9 accommodates one side of a main shaft 10 which extends horizontally and is rotated manually or by a motor or the like. A mainspring spring 11 shown in FIG. 2 is wound around the main shaft 10 in the operation box 9, and the inner end of the mainspring spring 11 is fixed to the main shaft 10. The outer end of the mainspring 11 is fixed to a support plate 12 fixed in the operation box 9.

他方、主軸10の他側は容器１内に気密に挿入され絶縁ロ
ッド13を介してラック７と係合するピニオン14が接続さ
れている。On the other hand, the other side of the main shaft 10 is connected to a pinion 14 which is hermetically inserted into the container 1 and engages with the rack 7 via an insulating rod 13.

次に本実施例の構成における作用効果を説明する。開動
作において、主軸10を回転するとピニオン14が回転す
る。そして、ピニオン14に係合するラック７が下降し、
可動導体６が固定側接触部４から離れる。Next, the function and effect of the configuration of this embodiment will be described. In the opening operation, when the main shaft 10 rotates, the pinion 14 rotates. Then, the rack 7 that engages with the pinion 14 descends,
The movable conductor 6 separates from the fixed-side contact portion 4.

いま、固定側接触部４の摩擦力をF₁、可動側接触部５の
摩擦力をF₂、可動導体６の重量をF₃、ぜんまいバネ11の
力をF₄とすると、ストローク中のこれらの力は第３図に
示すようになり、操作力ＦはＦ＝F₁＋F₂−F₃＋F₄となり
第４図に示すようになる。尚、両図中破線は可動導体６
が固定側接触部４から離れた位置を示す。また、ぜんま
いバネ11を設けない場合の操作力F₅を第４図に１点鎖線
で示している。Assuming that the frictional force of the fixed side contact portion 4 is F ₁ , the frictional force of the movable side contact portion 5 is F ₂ , the weight of the movable conductor 6 is F ₃ , and the force of the mainspring 11 is F ₄ , these Is as shown in FIG. 3, and the operating force F is F = F ₁ + F ₂ −F ₃ + F ₄ as shown in FIG. The broken line in both figures is the movable conductor 6.
Indicates a position away from the fixed side contact portion 4. The operating force F ₅ when the mainspring 11 is not provided is shown in FIG. 4 by a chain line.

第４図よりわかるように、ぜんまいバネ11が無い場合の
操作力F₅は全工程で負となり可動導体６が落下する虞れ
がある。これに対し、ぜんまいバネ11を設けた場合、特
にストロークエンド近傍で正となり、可動導体６の自然
落下が防止され、安全な操作が可能となる。As can be seen from FIG. 4, the operating force F ₅ when the mainspring 11 is not present becomes negative in all steps, and there is a risk that the movable conductor 6 will fall. On the other hand, when the mainspring 11 is provided, it becomes positive, especially near the stroke end, so that the movable conductor 6 is prevented from falling naturally and safe operation is possible.

他方、閉動作において、F₁，F₂，F₃，F₄は第５図に示す
ようになり、操作力ＦはＦ＝F₁＋F₂＋F₃−F₄となり第６
図に示すようになる。尚、両図中破線は可動導体６が固
定側接触部４に接する位置を示す。また、ぜんまいバネ
11を設けない場合の操作力F₅を第６図に１点鎖線で示し
ている。On the other hand, in the closing operation, F ₁ , F ₂ , F ₃ , and F ₄ are as shown in FIG. 5, and the operating force F is F = F ₁ + F ₂ + F ₃ −F ₄
As shown in the figure. The broken lines in both figures indicate the positions where the movable conductor 6 contacts the fixed-side contact portion 4. In addition, mainspring
The operating force F ₅ when 11 is not provided is shown by the one-dot chain line in FIG.

第４図よりわかるように、ぜんまいバネ11のバネ力F₄が
全工程にわたり可動導体６の操作に寄与するので、操作
力Ｆを従来の操作力F₅に比べ小さくすることができる。As can be seen from FIG. 4, the spring force F ₄ of the mainspring 11 contributes to the operation of the movable conductor 6 throughout the entire process, so that the operating force F can be made smaller than the conventional operating force F ₅ .

[Effect of device]

以上説明したように本考案においては、主軸にぜんまい
バネを固着しているので、安全でかつ操作力の小さな開
閉器を提供することができる。As described above, in the present invention, since the mainspring is fixed to the main shaft, it is possible to provide a switch which is safe and has a small operating force.

[Brief description of drawings]

第１図は本考案の一実施例を示す開閉器の断面図、第２
図は第１図に示すぜんまいバネの詳細構成図、第３図は
第１図に示す開閉器の開動作時に生じる力を示す図、第
４図は第３図に示す力の合成による操作力を示す図、第
５図は第１図に示す開閉器の閉動作時に生じる力を示す
図、第６図は第５図に示す力の合成による操作力を示す
図である。１…容器、２…固定側導体、３…可動側導体、４…固定
側接触部、５…可動側接触部、６…可動導体、７…ラッ
ク、８…操作装置、９…操作箱、10…主軸、11…ぜんま
いバネ、12…支持板、13…絶縁ロッド、14…ピニオン。FIG. 1 is a sectional view of a switch showing an embodiment of the present invention, and FIG.
1 is a detailed configuration diagram of the mainspring shown in FIG. 1, FIG. 3 is a diagram showing a force generated when the switch shown in FIG. 1 is opened, and FIG. 4 is an operating force resulting from the combination of the forces shown in FIG. FIG. 5 is a diagram showing a force generated during the closing operation of the switch shown in FIG. 1, and FIG. 6 is a diagram showing an operating force resulting from the combination of the forces shown in FIG. DESCRIPTION OF SYMBOLS 1 ... Container, 2 ... Fixed side conductor, 3 ... Movable side conductor, 4 ... Fixed side contact part, 5 ... Movable side contact part, 6 ... Movable conductor, 7 ... Rack, 8 ... Operating device, 9 ... Operation box, 10 … Main shaft, 11… spring spring, 12… support plate, 13… insulating rod, 14… pinion.

Claims

[Scope of utility model registration request]

1. A pair of fixed-side conductors and movable-side conductors which are vertically opposed to each other and housed in a container in which an insulating gas is sealed.
The fixed-side contact portion and the movable-side contact portion, which are fixed to face each of the conductors, are fixed to the fixed-side contact portion, which is housed in the movable-side conductor and is in constant contact with the movable-side contact portion and moves vertically up and down. A movable conductor that comes into contact with and separates from the movable conductor, a rack that is fixed to the movable conductor along the axial direction, a pinion that engages with the rack and moves the rack up and down by rotation, and a main shaft that has one side connected to the pinion and is rotatable And a mainspring which is wound around and fixed to the other side of the main shaft.