JP3026460B2 - Switch mechanical interlock - Google Patents
Switch mechanical interlockInfo
- Publication number
- JP3026460B2 JP3026460B2 JP3050904A JP5090491A JP3026460B2 JP 3026460 B2 JP3026460 B2 JP 3026460B2 JP 3050904 A JP3050904 A JP 3050904A JP 5090491 A JP5090491 A JP 5090491A JP 3026460 B2 JP3026460 B2 JP 3026460B2
- Authority
- JP
- Japan
- Prior art keywords
- switch
- stopper
- switches
- cam
- mechanical interlock
- 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 - Fee Related
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/26—Interlocking, locking, or latching mechanisms for interlocking two or more switches
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
Description
［発明の目的］ [Object of the invention]
【０００１】[0001]
【産業上の利用分野】本発明は、複数の開閉器が同時に
閉路するのを機械的に阻止する開閉器のメカニカルイン
ターロック（以下ＭＩＬと称する）に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a switch mechanical interlock (hereinafter, referred to as MIL) for mechanically preventing a plurality of switches from closing simultaneously.
【０００２】[0002]
【従来の技術】従来のＭＩＬを図７乃至図８に示す。図
７乃至図８は２台の開閉器が共に開路状態であるメカニ
カルインターロック機構図である。取付パネル３の上に
２台の開閉器１ａ，１ｂを上下に配置し、その側面にＭ
ＩＬ４を配置している。開閉器１ａ，１ｂには回転シャ
フト２ａ，２ｂが具備されており、開閉器１ａ，１ｂが
閉路すると回転シャフト２ａ，２ｂが反時計方向に回転
し、これに連結されたレバー７ａ，７ｂがほぼ垂直位置
までＡ方向に回転する構造になっている。また、インタ
ーロックレバー６は支工板５にピン９で回動自在に係合
されている。レバー７ａ，７ｂの先端部には、ロックピ
ン８ａ，８ｂが付設されている。このときロックピン８
ａ，８ｂとインターロックレバー６は隙間Ｂ，Ｃを有し
ている。図９は開閉器１ａが閉路、開閉器１ｂが開路状
態であり、ロックピン８ａ，８ｂとインターロックレバ
ー６はほぼ隙間０mmの状態で当接している。このとき、
開閉器１ｂにＯＮ指令が出されたとしても開閉器１ａの
閉路保持力が開閉器１ｂの投入力を上回っているため、
開閉器１ｂが投入、閉路するようなことはない。同様に
図８は、開閉器１ａが開路、開閉器１ｂが閉路状態を示
している。2. Description of the Related Art A conventional MIL is shown in FIGS. 7 and 8 are mechanical interlock mechanism diagrams in which both switches are in an open state. Two switches 1a and 1b are arranged vertically on the mounting panel 3, and M
IL4 is arranged. The switches 1a and 1b are provided with rotary shafts 2a and 2b, respectively. When the switches 1a and 1b are closed, the rotary shafts 2a and 2b rotate counterclockwise, and the levers 7a and 7b connected thereto are substantially turned. The structure rotates in the direction A to the vertical position. The interlock lever 6 is rotatably engaged with the support plate 5 with a pin 9. Lock pins 8a, 8b are attached to the distal ends of the levers 7a, 7b. At this time, lock pin 8
a, 8b and the interlock lever 6 have gaps B, C. FIG. 9 shows a state in which the switch 1a is closed and the switch 1b is open, and the lock pins 8a, 8b and the interlock lever 6 are in contact with a gap of almost 0 mm. At this time,
Even if an ON command is issued to the switch 1b, the closing force of the switch 1a exceeds the throw input of the switch 1b.
The switch 1b is not turned on or closed. Similarly, FIG. 8 shows a state where the switch 1a is open and the switch 1b is closed.
【０００３】[0003]
【発明が解決しようとする課題】従来のメカニカルイン
ターロック機構では、開閉器が瞬時に投入動作するため
ロックピン８ａがインターロックレバー６に高速衝突
Ｕ、その反力がピン９を支点として他端に直接的に働
き、ロックピン８ｂに衝撃力が発生した。このため、ロ
ックピン８ａ，８ｂを焼入れするなど強度を増す必要が
あり高価名ものとなった。またインターロックレバー６
の両端に開閉器１ａ，１ｂの投入力が同時に作動しても
ＭＩＬの機能を満足させる必要があるため、インターロ
ックレバー６は衝撃力に打ち勝つよう強固にする必要が
ある。このため補強構造にしたり、断面積を大きくする
などで対応していたが、これに伴い装置全体が大形化し
ていた。本発明の目的は衝撃力の発生をなくすことによ
り機械的強度を増加させる必要がなく、低コストで小形
化できる開閉器のメカニカルインターロックを提供する
ことにある。 ［発明の構成］In the conventional mechanical interlock mechanism, the lock pin 8a collides with the interlock lever 6 at a high speed U, and the reaction force is applied to the pin 9 as a fulcrum. And an impact force was generated on the lock pin 8b. For this reason, it is necessary to increase the strength by quenching the lock pins 8a and 8b, and it has become expensive. Interlock lever 6
It is necessary to satisfy the function of the MIL even if the throwing inputs of the switches 1a and 1b are simultaneously operated at both ends of the switch. To cope with this, a reinforcement structure or an increase in the cross-sectional area has been used, but the whole device has been enlarged accordingly. An object of the present invention is to provide a mechanical interlock for a switch which can be reduced in size at low cost without having to increase mechanical strength by eliminating generation of an impact force. [Configuration of the Invention]
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するため
に本発明は、一辺がＬ字折り曲げ部、他辺が切欠きを有
し、取付ベースに回動自在に付設されるカムストッパ
と、このカムストッパの切欠きに一端が接続し他端に開
閉器の開閉動作に呼応し作動する操作レバーが開閉器動
作伝達手段に当接するように設けられ、取付ベースに回
動自在に付設される作動リンクがそれぞれ一対の開閉器
の開閉動作に連動するように設けられ、前記カムストッ
パのＬ字折り曲げ部のロック面と他方開閉器の前記作動
リンクの先端部のストッパ面が当接し、前記作動リンク
の動作を阻止することで、双方の開閉器が同時に閉路と
なることを防止する構成である。 According to the present invention, there is provided a cam stopper having an L-shaped bent portion on one side and a notch on the other side and rotatably attached to a mounting base. One end is connected to the notch of the cam stopper, and the other end is provided with an operating lever that operates in response to the opening and closing operation of the switch so as to contact the switch operation transmitting means, and is rotatably attached to the mounting base. Is a pair of switches
Is provided to interlock with the opening and closing operation of the cam stopper.
The lock surface of the L-shaped bent portion and the operation of the other switch
When the stopper surface at the end of the link abuts,
Block the operation of both switches so that both switches
This is a configuration for preventing such a situation.
【０００５】[0005]
【作用】このような構成において、開閉器の開閉動作に
呼応して作動する作動リンクは一端がカムストッパの切
欠きに当接し、他端の操作レバーは開閉器動作伝達手段
に当接するように設けられているので、複数の開閉器が
同時に閉路するのを防げるだけでなく、開閉器の投入時
において作動リンクとカムストッパの衝突がなくなり衝
撃力の発生を防止できる。In such a configuration, the operating link which operates in response to the opening / closing operation of the switch is provided such that one end thereof is in contact with the notch of the cam stopper and the operation lever at the other end is in contact with the switch operation transmitting means. As a result, not only can a plurality of switches be closed at the same time, but also the collision between the operating link and the cam stopper when the switches are closed can be prevented, thereby preventing the generation of an impact force.
【０００６】[0006]
【実施例】以下、本発明の実施例を図面を参照して説明
する。図１乃至図４は本発明の開閉器のメカニカルイン
ターロックの構成図である。略Ｌ字形状の取付ベース１
３に、略三角形状をしその一辺がＬ字状（Ｄ部）に折り
曲げられ、他の一辺にはコの字形状の切欠き部（Ｅ部）
を形成し、更に他の一辺をピン１５ａ，１５ｂで取付ベ
ース１３に係合させたカムストッパ１４ａ，１４ｂが回
動自在に付設されている。又、先端にベアリング１８
ａ，１８ｂを具備し、ベアリング１８ａ，１８ｂはカム
ストッパ１４ａ，１４ｂのコの字形状の切欠き部（Ｅ
部）に当接するように係合し、他端には開閉器１１ａ，
１１ｂの開閉動作によりＭ−Ｎ方向に作動する可動シャ
フト１２ａ，１２ｂに呼応し作動する操作レバー１７
ａ，１７ｂを付設し、中心部をピン１９ａ，１９ｂにて
取付ベース１３に係合させた作動リンク１６ａ，１６ｂ
が回動自在に付設されている。Embodiments of the present invention will be described below with reference to the drawings. 1 to 4 are configuration diagrams of a mechanical interlock of a switch according to the present invention. Substantially L-shaped mounting base 1
3, a substantially triangular shape, one side of which is bent into an L-shape (D part), and the other side having a U-shaped notch (E part)
And cam stoppers 14a and 14b having the other side engaged with the mounting base 13 by pins 15a and 15b are rotatably attached. In addition, bearing 18
a, 18b, and the bearings 18a, 18b are provided with U-shaped notches (E) of the cam stoppers 14a, 14b.
Part), and the other end thereof has a switch 11a,
An operating lever 17 that operates in response to the movable shafts 12a and 12b that operate in the MN direction by opening and closing the 11b.
a, 17b are attached, and the center portions are engaged with the mounting base 13 by pins 19a, 19b.
Is rotatably attached.
【０００７】図３に示すように図１の開閉器１１ａ，１
１ｂが共に開路状態から開閉器１１ａが閉路状態になっ
た場合、可動シャフト１２ａがＮ位置からＭ位置に移動
しこれに当接している操作レバー１７ａがピン１９ａを
回転の軸としてＰ方向に作動する。この時、作動リンク
１６ａの反対側に具備されているベアリング１８ａがカ
ムストッパ１４ａのＥ面に沿って作用し、カムストッパ
１４ａは、ピン１５ａを軸として時計回り方向に回動す
る。開閉器１１ａが開路すると可動シャフト１２ａはＭ
位置からＮ位置に移動し、カムストッパ１４ａと作動リ
ンク１６ａはばね２０ａの作用で元の位置に復帰する。
図４は、開閉器１１ｂが動作した場合を示しており、各
部品を図３と相対的に配置しているが、構成・作用は図
３と同様である。As shown in FIG. 3, the switches 11a, 1 of FIG.
When the switch 11a changes from the open state to the closed state, the movable shaft 12a moves from the N position to the M position, and the operating lever 17a in contact with the movable shaft 12a operates in the P direction using the pin 19a as a rotation axis. I do. At this time, the bearing 18a provided on the opposite side of the operation link 16a acts along the E surface of the cam stopper 14a, and the cam stopper 14a rotates clockwise around the pin 15a. When the switch 11a opens, the movable shaft 12a
The cam stopper 14a and the operating link 16a return to their original positions by the action of the spring 20a.
FIG. 4 shows a case where the switch 11b operates, and the respective components are arranged relative to FIG. 3, but the configuration and operation are the same as those in FIG.
【０００８】図５は開閉器１１ａが閉路、開閉器１１ｂ
が開路の状態を示している。この状態で仮に開閉器１１
ｂにＯＮ指令が出され閉路しようとしても、作動リンク
１６ａの先端Ｆ部ストッパ面が、カムストッパ１４ｂの
Ｄ部Ｌ字折曲部のＧ部ロック面に当接し、カムストッパ
１４ｂの動きを阻止するため、カムストッパ１４ｂ及び
作動リンク１６ｂが作動できない。結果これに当接して
いる可動シャフト１２ｂも作動できないことになる。図
６は開閉器１１ｂが閉路、開閉器１１ａが開路の状態を
示しているが作用は図５と同様である。このように、開
閉器１１ａ，１１ｂを相対的に動作させ開閉器１１ａ，
１１ｂが同時に閉路するのを防ぐことができる。FIG. 5 shows that the switch 11a is closed and the switch 11b is closed.
Indicates an open circuit state. In this state, the switch 11 is temporarily
Even if an ON command is issued to b to attempt to close the circuit, the front end F stopper surface of the operating link 16a abuts on the G lock surface of the D-shaped L-shaped bent portion of the cam stopper 14b to prevent the movement of the cam stopper 14b. The cam stopper 14b and the operation link 16b cannot be operated. As a result, the movable shaft 12b which is in contact therewith cannot be operated. FIG. 6 shows a state in which the switch 11b is closed and the switch 11a is open, but the operation is the same as in FIG. As described above, the switches 11a and 11b are relatively operated to operate the switches 11a and 11b.
11b can be prevented from closing at the same time.
【０００９】また、可動シャフト１２ａ，１２ｂと操作
レバー１７ａ，１７ｂの先端に隙間がなく衝撃力の発生
や衝突音の発生がない。又ＭＩＬの構成部品がそれぞれ
の開閉器の動作に合わせ独立に作動するため、他方開閉
器へ与える衝撃力の発生がなく、部品強度の低減や、長
寿命化が図れる。Further, there is no gap between the movable shafts 12a and 12b and the distal ends of the operation levers 17a and 17b, so that there is no generation of impact force and no collision sound. Further, since the components of the MIL operate independently in accordance with the operation of each switch, there is no impact force applied to the switch, so that the component strength can be reduced and the service life can be extended.
【００１０】[0010]
【発明の効果】以上述べたように本発明によれば、取付
ベースにカムストッパを付設し、作動リンクの一端をカ
ムストッパの切欠きに当接させ、他端に開閉器動作伝達
手段に当接するように操作レバーを設けているので、衝
撃力発生をなくし機械的強度を増す必要がなく低コスト
化，長寿命化，小形化が可能となる。As described above, according to the present invention, a cam stopper is attached to the mounting base, one end of the operating link is brought into contact with the notch of the cam stopper, and the other end is brought into contact with the switch operation transmitting means. Since the operating lever is provided at the end, there is no need to increase the mechanical strength by eliminating the generation of an impact force, and it is possible to reduce the cost, extend the service life, and reduce the size.
【図１】 本発明の実施例の構成図。FIG. 1 is a configuration diagram of an embodiment of the present invention.
【図２】 本発明の実施例の部分拡大図。FIG. 2 is a partially enlarged view of the embodiment of the present invention.
【図３】 本発明の実施例の動作を示す図。FIG. 3 is a diagram showing the operation of the embodiment of the present invention.
【図４】 本発明の実施例の動作を示す図。FIG. 4 is a diagram showing the operation of the embodiment of the present invention.
【図５】 本発明の実施例の動作を示す図。FIG. 5 is a diagram showing the operation of the embodiment of the present invention.
【図６】 本発明の実施例の動作を示す図。FIG. 6 is a diagram showing the operation of the embodiment of the present invention.
【図７】 従来の開閉器のメカニカルインターロックの
構成図。FIG. 7 is a configuration diagram of a conventional mechanical interlock of a switch.
【図８】 従来の開閉器のメカニカルインターロックの
構成図。FIG. 8 is a configuration diagram of a conventional mechanical interlock of a switch.
【図９】 従来の開閉器のメカニカルインターロックの
構成図。FIG. 9 is a configuration diagram of a conventional mechanical interlock of a switch.
【図１０】 従来の開閉器のメカニカルインターロック
の構成図。FIG. 10 is a configuration diagram of a conventional mechanical interlock of a switch.
１１ａ，１１ｂ……開閉器、１２ａ，１２ｂ……可動シ
ャフト、１４ａ，１４ｂ……カムストッパ、１６ａ，１
６ｂ……作動リンク、１７ａ，１７ｂ……操作レバー11a, 11b: switch, 12a, 12b: movable shaft, 14a, 14b: cam stopper, 16a, 1
6b ... operating link, 17a, 17b ... operating lever
フロントページの続き (56)参考文献 特開 昭63−126123（ＪＰ，Ａ) 特開 昭48−89358（ＪＰ，Ａ) 実開 昭57−55128（ＪＰ，Ｕ) 実公 昭44−5801（ＪＰ，Ｙ１) (58)調査した分野(Int.Cl.7，ＤＢ名) H01H 9/26 H01H 33/10 H01H 33/46 Continuation of the front page (56) References JP-A-63-126123 (JP, A) JP-A-48-89358 (JP, A) JP-A-57-55128 (JP, U) JP-A-44-5801 (JP) , Y1) (58) Field surveyed (Int. Cl. 7 , DB name) H01H 9/26 H01H 33/10 H01H 33/46
Claims (1)
を有し、取付ベースに回動自在に付設されるカムストッ
パと、このカムストッパの切欠きに一端が当接し他端に
開閉器の開閉動作に呼応し作動する操作レバーが開閉器
動作伝達手段に当接するように設けられ、前記取付ベー
スに回動自在に付設される作動リンクがそれぞれ一対の
開閉器の開閉動作に連動するように設けられ、前記カム
ストッパのＬ字折り曲げ部のロック面と他方開閉器の前
記作動リンクの先端部のストッパ面が当接し、前記作動
リンクの動作を阻止することで、双方の開閉器が同時に
閉路となることを防止することを特徴とした開閉器のメ
カニカルインターロック。1. A cam stopper having an L-shaped bent portion on one side and a notch on the other side and rotatably attached to a mounting base, one end of which contacts the notch of the cam stopper and a switch on the other end. An operation lever that operates in response to the opening / closing operation of the switch is provided so as to contact the switch operation transmission means, and an operation link rotatably attached to the mounting base is a pair of each .
The cam is provided so as to be linked to the opening and closing operation of the switch.
Lock surface of L-shaped bent part of stopper and in front of the other switch
The stopper surface at the end of the operating link abuts,
Blocking the link operation allows both switches to operate simultaneously
A mechanical interlock for a switch that prevents the circuit from closing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3050904A JP3026460B2 (en) | 1991-03-15 | 1991-03-15 | Switch mechanical interlock |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3050904A JP3026460B2 (en) | 1991-03-15 | 1991-03-15 | Switch mechanical interlock |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04286813A JPH04286813A (en) | 1992-10-12 |
| JP3026460B2 true JP3026460B2 (en) | 2000-03-27 |
Family
ID=12871748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3050904A Expired - Fee Related JP3026460B2 (en) | 1991-03-15 | 1991-03-15 | Switch mechanical interlock |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3026460B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104952654B (en) * | 2015-06-30 | 2017-04-12 | 浙江万松电气有限公司 | Interlocking transmission device of automatic change-over switch of double circuit breakers |
-
1991
- 1991-03-15 JP JP3050904A patent/JP3026460B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04286813A (en) | 1992-10-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |