JP2593242B2 - Auxiliary switch - Google Patents
Auxiliary switchInfo
- Publication number
- JP2593242B2 JP2593242B2 JP2319264A JP31926490A JP2593242B2 JP 2593242 B2 JP2593242 B2 JP 2593242B2 JP 2319264 A JP2319264 A JP 2319264A JP 31926490 A JP31926490 A JP 31926490A JP 2593242 B2 JP2593242 B2 JP 2593242B2
- Authority
- JP
- Japan
- Prior art keywords
- shaft
- contact
- pair
- fixed
- movable
- 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 - Lifetime
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Contacts (AREA)
Description
【発明の詳細な説明】 「産業上の利用分野」 本発明は、電力用遮断器内に設けられ、遮断器の開閉
操作に連動して開閉操作される補助開閉器に関するもの
である。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an auxiliary switch provided in a power circuit breaker and operated to open and close in conjunction with opening and closing operations of the circuit breaker.
「従来の技術」 従来、遮断器に補助開閉器を敷設する場合、その操作
用シャフトが操作盤等の盤面に平行となる横向きにして
補助開閉器としている。この一般的な操作開閉器からな
る補助開閉器は、例えば第９図に示すように、複数の開
閉ユニット101と、連結された１群の開閉ユニット101の
左右両端に配置される側面板102・103と、両側面板102
・103に回転可能に支持されたシャフト104とを備え、前
記シャフト104の一端部105を一方の側面板102から外方
に突出させて外部の遮断器に連動連結している。2. Description of the Related Art Conventionally, when an auxiliary switch is laid on a circuit breaker, the auxiliary switch is set so that its operating shaft is oriented sideways parallel to a panel surface of an operation panel or the like. As shown in FIG. 9, for example, as shown in FIG. 9, the auxiliary switch including the general operation switch includes a plurality of switch units 101 and side plates 102 arranged on both right and left ends of a connected group of switch units 101. 103 and both side plates 102
A shaft 104 rotatably supported by the shaft 103; one end 105 of the shaft 104 is protruded outward from one side plate 102 to be interlocked with an external circuit breaker;
各開閉ユニット101は、例えば第10図に示すように、
側面板102・103に通し、ボルト106を介して連結される
ほぼ四辺形の絶縁ケース107と、前記シャフト104に固定
されるカム108と、該絶縁ケース107に固定される少なく
とも１対（ここでは２対）の固定接点109と、該絶縁ケ
ース107にバネ110を介して浮動支持され、シャフト104
及びカム108を回転させることにより上下に対をなす固
定接点109に同時に接離して両固定接点109間を断続する
少なくとも１対（ここでは２対）の可動接点111とを備
える。そして、これらの固定接点109と可動接点111とが
互いに接触する接触面Ｐは、例えば第14図に示すように
可動接点111の進退方向（同図上、左右方向）に直角に
している。Each opening and closing unit 101 is, for example, as shown in FIG.
A substantially quadrangular insulating case 107 that is passed through the side plates 102 and 103 and connected via bolts 106, a cam 108 fixed to the shaft 104, and at least one pair (here, a pair) fixed to the insulating case 107 2 pairs) of fixed contacts 109, and floating support of the insulating case 107 via a spring 110, and a shaft 104
And at least one pair (here, two pairs) of movable contacts 111 which are connected to and separated from the fixed contacts 109 forming a pair at the same time by rotating the cam 108 to intermittently connect the fixed contacts 109. The contact surface P where the fixed contact 109 and the movable contact 111 come into contact with each other is, for example, at right angles to the direction in which the movable contact 111 moves forward and backward (left and right in FIG. 14), as shown in FIG.
また、この従来例では、各開閉ユニット101の表面の
上下両側に、該開閉ユニット101の内部に設けた各固定
接点109に個別的に接続した外部配線接続用の各端子金
具112を設けている。Further, in this conventional example, terminal fittings 112 for external wiring connection individually connected to fixed contacts 109 provided inside the opening / closing unit 101 are provided on both upper and lower sides of the surface of each opening / closing unit 101. .
そして、各端子金具112には外部配線接続用の小ネジ113
が螺合される。この小ネジ113の軸心はシャフト104の軸
心に対して傾斜した方向に向けてある。Each terminal fitting 112 has a small screw 113 for external wiring connection.
Is screwed. The axis of the machine screw 113 is oriented in a direction inclined with respect to the axis of the shaft 104.
更に、例えば第11図に示すように、各絶縁ケース107
には該絶縁ケース107の各端子金具112の番号、即ち、端
子番号を記入した番号板114を填め込む凹孔115が形成さ
れる。Further, for example, as shown in FIG.
Is formed with a recess 115 into which a number plate 114 in which the number of each terminal fitting 112 of the insulating case 107, that is, the terminal number is written, is inserted.
また更に、第９図に示すように、前記シャフト104は
一方の側面板102に１対の軸受116を介して回転自在に支
持される。そして、第９図及び第12図に示すように、両
軸受116の間でシャフト104に形成された周溝117に止輪1
18を外嵌し、両軸受116間にこの止輪118を挟入すること
により、シャフト104が軸心方向に移動することを防止
している。Further, as shown in FIG. 9, the shaft 104 is rotatably supported by one of the side plates 102 via a pair of bearings 116. As shown in FIGS. 9 and 12, the retaining ring 1 is inserted into a circumferential groove 117 formed in the shaft 104 between the two bearings 116.
The outer ring 18 is inserted and the retaining ring 118 is sandwiched between the two bearings 116 to prevent the shaft 104 from moving in the axial direction.
「発明が解決しようとする課題」 従来、補助開閉器として前記操作開閉器を使用する場
合、盤面方向からみて前後に２つの端子金具112が並ぶ
ため、盤面に近い前方の端子金具112への配線作業が困
難になる。[Problem to be Solved by the Invention] Conventionally, when the above-mentioned operation switch is used as an auxiliary switch, two terminal fittings 112 are arranged in front and rear when viewed from the board surface direction, so that wiring to the front terminal fitting 112 near the board surface is performed. Work becomes difficult.
そこで、第13図に示すように、中継端子台119を設
け、この中継端子台119の一側に各端子金具112にそれぞ
れ対応する中継端子金具120を設け、各端子金具112とそ
れに対応する各中継端子金具120とを導線121で接続す
る。Therefore, as shown in FIG. 13, a relay terminal block 119 is provided, and a relay terminal block 120 corresponding to each terminal block 112 is provided on one side of the relay terminal block 119, and each terminal block 112 and each corresponding block are provided. The relay terminal fitting 120 is connected with the conducting wire 121.
この場合には、外部配線の接続作業を補助開閉器の一
側方から行えるので、全ての外部配線を容易に接続する
ことができる。In this case, since the connection work of the external wiring can be performed from one side of the auxiliary switch, all the external wirings can be easily connected.
しかしながら、この場合には中継端子台119、各中継
端子金具120および導線121を付加する必要があり、部品
点数が増加し、コストダウンを図る上で不利になるとい
う問題が残される。However, in this case, it is necessary to add the relay terminal block 119, the respective relay terminal fittings 120, and the conducting wires 121, and the number of components increases, which is disadvantageous in reducing costs.
また、補助開閉器として前記操作開閉器を使用する場
合、固定接点109と可動接点111とが互いに接触する接触
面Ｐを可動接点111の進退方向に直角にしているので、
例えば第14図に示すように、シャフト104及びカム108を
回転させる操作初期にこれらから可動接点110に衝撃力
Ｆが加えられ、この衝撃力Ｆによって可動接点111が摺
動し固定・可動両接点が磨耗し易いという問題がある。
また、その結果、操作時の衝撃力による可動接点111の
摺動に伴って生ずる接点のチャタリング現象（接点の予
期せぬ導通・不導通を繰り返す現象）も増加することに
なる。When the operation switch is used as an auxiliary switch, the contact surface P where the fixed contact 109 and the movable contact 111 come into contact with each other is perpendicular to the direction in which the movable contact 111 moves forward and backward.
For example, as shown in FIG. 14, an impact force F is applied to the movable contact 110 from the initial stage of rotating the shaft 104 and the cam 108, and the movable contact 111 slides due to the impact force F, and the fixed and movable contact However, there is a problem that it is easily worn.
As a result, the chattering phenomenon of the contacts (the phenomenon of unexpectedly repeating conduction / non-conduction of the contacts) caused by the sliding of the movable contact 111 due to the impact force during operation also increases.
また更に、シャフト104の軸心方向への移動を防止す
る止輪118を外嵌する周溝117が外部の操作力を入力する
端部に近い位置に形成されているので、遮断器の動作初
期の大きな衝撃力によるシャフト104の曲がりや折損を
防止するため、シャフト104の径を大きくする必要があ
り、軽量化及び小型化を図る上で不利であるという問題
がある。Further, since the circumferential groove 117 for externally fitting the retaining ring 118 for preventing the shaft 104 from moving in the axial direction is formed at a position close to the end for inputting an external operating force, the initial operation of the circuit breaker is started. In order to prevent bending or breakage of the shaft 104 due to a large impact force, it is necessary to increase the diameter of the shaft 104, which is disadvantageous in reducing the weight and size.
本発明は、前記の事情を鑑みてなされたものであり、
前記の諸問題を解消することを目的とするものである。The present invention has been made in view of the above circumstances,
An object is to solve the above-mentioned problems.
「課題を解決するための手段」 本発明は、まず、部品点数を増加させることなく補助
開閉器の一側面から全ての配線作業を容易にできるよう
にするため、開閉ユニットの内部の各固定接点に個別的
に接続した外部配線接続用の各端子金具を絶縁体ケース
の一側部に配置する、という手段を講じている。"Means for Solving the Problems" The present invention firstly provides each fixed contact inside the switching unit in order to facilitate all wiring work from one side of the auxiliary switch without increasing the number of parts. Means for arranging each terminal fitting for external wiring connection individually connected to one side of the insulator case.
また、本発明は、遮断器の操作の衝撃力による固定・
可動両接点の磨耗を減少させるため、固定接点と可動接
点とが互いに他方に接触する接触面を可動接点の進退方
向に対して直角な方向よりもシャフト及びカムの回転軸
心方向に傾斜させて開閉作動時に接触面の面方向に作用
する衝撃力を緩和させる、という手段を講じている。In addition, the present invention provides a method of fixing and operating a circuit breaker by an impact force.
In order to reduce the wear of the movable contact, the contact surface where the fixed contact and the movable contact come into contact with each other is inclined in the direction of the rotation axis of the shaft and the cam, rather than in a direction perpendicular to the direction in which the movable contact moves. Measures are taken to reduce the impact force acting in the direction of the contact surface during the opening and closing operation.
また、本発明においては、シャフトを小径にして補助
開閉器の軽量化及び小型化を図るため、シャフトの操作
力を入力する側と異なる端部に止輪を外嵌する周溝を形
成する、いう手段を講じている。Further, in the present invention, in order to reduce the weight of the auxiliary switch by reducing the diameter of the shaft and reduce the size of the auxiliary switch, a peripheral groove for externally fitting a retaining ring is formed at an end different from the side on which the operating force of the shaft is input. We take measures to say.
「作用」 本発明において、各端子金具を絶縁体ケースの一側部
に配置しているので、全ての外部配線を絶縁体ケースの
一側部から接続することができる。[Operation] In the present invention, since each terminal fitting is arranged on one side of the insulator case, all external wiring can be connected from one side of the insulator case.
また、本発明において、固定接点と可動接点とが互い
に他方に接触する接触面を可動接点の進退方向に対して
直角な方向よりもシャフト及びカムの回転軸心方向に傾
斜させて開閉作動時に接触面の面方向に作用する衝撃力
によるすべりを防止する場合には、固定・可動両接点の
磨耗が減少する。Also, in the present invention, the contact surface where the fixed contact and the movable contact come into contact with each other is inclined in the direction of the rotation axis of the shaft and the cam, rather than in a direction perpendicular to the direction of advance and retreat of the movable contact, so as to make contact during opening and closing operations. When slippage due to an impact force acting in the surface direction of the surface is prevented, abrasion of both the fixed and movable contacts is reduced.
また、本発明において、シャフトの他端部に止輪を外
嵌する周溝を形成する場合には、周溝の形成箇所がシャ
フトの操作力を入力する一端部と反対側の他端部にある
ので、周溝の形成箇所におけるシャフトの曲げモーメン
トを殆ど０に減少させることができる。Further, in the present invention, when a circumferential groove for externally fitting the retaining ring is formed at the other end of the shaft, the location of the circumferential groove is formed at the other end opposite to the one end for inputting the operating force of the shaft. Therefore, the bending moment of the shaft at the location where the circumferential groove is formed can be reduced to almost zero.
「実施例」 以下、本発明の一実施例に係る補助開閉器を第１図な
いし第８図、第15図基づき詳細に説明する。Hereinafter, an auxiliary switch according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 8 and FIG.
本発明の一実施例に係る補助開閉器Ａは例えば第２図
ないし第４図に示すように、複数の開閉ユニット１・１
…と、連結された１群の開閉ユニット１・１…の左右両
端に配置される側面板２・３と、両側面板２・３に回転
可能に支持されたシャフト４とを備えている。そして、
補助開閉器Ａは、第２図に示すように、そのシャフト４
が遮断器Ｍの器匣31の前面板31aと平行となる横向きに
して器匣31内に配置され、器匣31の底面板31bに固定さ
れた取付枠32に次の要領で固定している。An auxiliary switch A according to an embodiment of the present invention includes a plurality of switch units 1.1 as shown in FIGS.
, And a pair of opening / closing units 1.1 connected to the left and right ends, and a shaft 4 rotatably supported by both side plates 2.3. And
The auxiliary switch A has a shaft 4 as shown in FIG.
Are disposed in the housing 31 in a horizontal orientation parallel to the front plate 31a of the housing 31 of the circuit breaker M, and are fixed to the mounting frame 32 fixed to the bottom plate 31b of the housing 31 in the following manner. .
取付枠32は平面視において前面が開かれたコ字形に形
成され、その左右両側壁32a・32bにはそれらの前縁から
シャフト４を挿入するＵ字溝33が形成される。The mounting frame 32 is formed in a U-shape whose front surface is opened in a plan view, and U-shaped grooves 33 for inserting the shaft 4 from the front edges thereof are formed in the left and right side walls 32a and 32b.
これに対して両側面板２・３には、第３図及び第４図
に示すように、シャフト４の前後で左右各外側に突出す
るネジ棒５・５…が設けられ、このネジ棒５・５…及び
シャフト４の左端部4aを取付枠32の各Ｕ字溝33に前方か
ら挿入し、ネジ棒５・５…に取付枠32の左右各側壁32a
・32bの左右各外側からナットを螺締することにより補
助開閉器Ａが取付枠32に固定される。On the other hand, as shown in FIGS. 3 and 4, the both side plates 2 and 3 are provided with screw rods 5 projecting to the left and right outside before and after the shaft 4, respectively. 5 and the left end 4a of the shaft 4 are inserted into the respective U-shaped grooves 33 of the mounting frame 32 from the front, and the right and left side walls 32a of the mounting frame 32 are inserted into the threaded rods 5, 5,.
The auxiliary switch A is fixed to the mounting frame 32 by screwing nuts from the left and right outer sides of 32b.
なお、この実施例では１つの取付枠32に２個の補助開
閉器Ａを上下２段に並べて取り付けているが、１つの取
付枠32に取り付ける補助開閉器Ａの数は１つ以上であれ
ばよく、３つ以上であってもよい。In this embodiment, two auxiliary switches A are mounted on one mounting frame 32 side by side in two upper and lower stages, but the number of auxiliary switches A mounted on one mounting frame 32 is one or more. Well, there may be three or more.
各補助開閉器Ａの前記シャフト４の左端部4aは左方の
側面板２及び取付枠32の左側壁32aから左外方に突出さ
せてあり、その左端に固定したレバー34と、このレバー
34の遊端に連結したリンク35を介して該シャフト４を遮
断器Ｍの操作具に連動連結している。The left end 4a of the shaft 4 of each auxiliary switch A projects leftward and outward from the left side plate 2 and the left side wall 32a of the mounting frame 32, and a lever 34 fixed to the left end thereof,
The shaft 4 is operatively connected to the operating device of the circuit breaker M via a link 35 connected to the free end of the circuit breaker M.
前記開閉ユニット1a・1b…は、例えば第１図に示すよ
うに、側面板２・３に上下１対の通しボルト6a・6bを介
して連結される絶縁ケース７と、前記シャフト４に固定
されるカム８と、該絶縁ケース７に固定される２対の固
定接点9a・9b…と、該絶縁ケース７にバネ10a・10b…を
介して浮動支持され、シャフト４及びカム８を回転させ
ることにより上下に対をなす固定接点9a・9b…に同時に
接離して両固定接点9a・9b…間を断続する２対の可動接
点11a・11b…とを備える。The opening / closing units 1a, 1b are fixed to the shaft 4 and an insulating case 7 connected to the side plates 2, 3 via a pair of upper and lower through bolts 6a, 6b, for example, as shown in FIG. , And two pairs of fixed contacts 9a, 9b fixed to the insulating case 7, and floatingly supported by the insulating case 7 via springs 10a, 10b to rotate the shaft 4 and the cam 8. , And two pairs of movable contacts 11a, 11b... Which contact and separate the fixed contacts 9a, 9b.
前記絶縁ケース７は、ほぼ四辺形の空間12を取り囲む
絶縁壁13と、絶縁壁13の上下両側中央部に形成したボス
部14・14と、絶縁壁13の上下両側部から両外側に張り出
させたリードフレーム保持部15とを備えている。The insulating case 7 includes an insulating wall 13 surrounding a substantially quadrangular space 12, bosses 14 and 14 formed at the center of the upper and lower sides of the insulating wall 13, and both sides projecting from the upper and lower sides of the insulating wall 13. And a lead frame holding portion 15 which is provided.
リードフレームの保持部15の上側部と下側部にはそれ
ぞれ２本のリードフレーム16・16・17・17が嵌め込まれ
る。各リードフレーム16・16・17・17の後端部16a・16a
・17a・17aは、絶縁壁13の上壁部13aあるいは下壁部13b
を貫通して前記空間12内に突入させてある。各リードフ
レーム16・16・17・17が空間12に向かって絶縁壁13を貫
通する位置は、空間12の中心を通過する前記シャフト４
を中心に対称（第１図上、左右対称）に位置させてあ
り、かつ、絶縁壁13を貫通して空間12内に突入した各リ
ードフレーム16・16・17・17の後端部16a・16a・17a・1
7aは、絶縁壁13の上壁部13aあるいは下壁部13bに直角な
方向よりシャフト４の中心方向に傾斜させてある。Two lead frames 16, 16, 17, 17 are fitted into the upper and lower portions of the holding portion 15 of the lead frame, respectively. Rear end 16a / 16a of each lead frame 16, 16, 17, 17
17a, 17a is the upper wall 13a or the lower wall 13b of the insulating wall 13
And penetrates into the space 12. The position where each lead frame 16, 16, 17, 17 penetrates the insulating wall 13 toward the space 12 is determined by the position of the shaft 4 passing through the center of the space 12.
The rear ends 16a of the lead frames 16, 16, 17, 17 penetrating the insulating wall 13 and protruding into the space 12 are positioned symmetrically with respect to the center (in FIG. 1, left-right symmetric). 16a ・ 17a ・ 1
7a is inclined toward the center of the shaft 4 from a direction perpendicular to the upper wall 13a or the lower wall 13b of the insulating wall 13.
そして、各リードフレーム16・16・17・17の後端部16
a・16a・17a・17aのシャフト４と反対側の面に固定接点
９・９…が固定される。第５図に示すように、各固定接
点９の先端面9aは、各リードフレーム16（あるいは17）
の後端部16a（あるいは17a）と平行に形成された平面で
構成される。Then, the rear end 16 of each lead frame 16, 16, 17, 17
The fixed contacts 9, 9... are fixed to the surfaces of the shafts a, 16a, 17a, 17a on the side opposite to the shaft 4. As shown in FIG. 5, the distal end surface 9a of each fixed contact 9 is connected to each lead frame 16 (or 17).
And a plane formed in parallel with the rear end 16a (or 17a).
各リードフレーム16・16・17・17のうち、後端部16a
・16aがシャフト４の前方に位置するリードフレーム16
・16の前端部は上下とも中心軸方向に折り曲げられてそ
れぞれ端子金具16b・16bを構成している。また、各リー
ドフレームの16・16・17・17のうち、後端部17a・17aが
シャフト４の後方に位置するリードフレーム17・17の前
端部は上下とも中心軸方向に折り曲げられてそれぞれ端
子金具17b・17bを構成している。これらのリードフレー
ムの16,16,17,17は絶縁ケース７に設けられた図示しな
い突起に嵌め込んで保持するように構成している。Rear end 16a of each lead frame 16, 16, 17, 17
・ Lead frame 16 in which 16a is located in front of shaft 4
The front end of 16 is bent in the direction of the central axis both up and down to form terminal fittings 16b. Also, of the lead frames 16, 16, 17, 17, the front ends of the lead frames 17, 17 whose rear ends 17a, 17a are located behind the shaft 4, are bent in the center axis direction both up and down, and each terminal is Metal fittings 17b, 17b are configured. These lead frames 16, 16, 17, 17 are configured to be fitted and held by projections (not shown) provided on the insulating case 7.
そして、各端子金具16b,16b,17b,17bにはそれぞれ配
線固定用の小ネジ18a,18b…が前方から螺合される。Then, small screws 18a, 18b,... For fixing the wiring are screwed into the respective terminal fittings 16b, 16b, 17b, 17b from the front.
前記可動接点11a,11b…は、それぞれ絶縁壁13の前壁
部13cあるいは後壁部13dに受け止められる圧縮コイルバ
ネからなる１対のバネ10a,10b…により最寄りの固定接
点9a,9b…に向かって付勢される可動板19a,19b…の上下
両端部の固定接点9a,9b…側の面に固定される。そし
て、各可動板19a,19bの中央部にはカムフォロア20a,20b
が連結される。The movable contacts 11a, 11b,... Are moved toward the nearest fixed contacts 9a, 9b,... By a pair of springs 10a, 10b, which are compression coil springs received by the front wall 13c or the rear wall 13d of the insulating wall 13, respectively. Are fixed to the fixed contact 9a, 9b... Surfaces at the upper and lower ends of the movable plates 19a, 19b. A cam follower 20a, 20b is provided at the center of each movable plate 19a, 19b.
Are linked.
このカムフォロア20a,20bは各可動板19a・19bからシ
ャフト４の回転軸心に向かって延出され、絶縁ケース７
に設けられた図示しない突起に案内されて直線的に移動
する。カムフォロア20はバネ10a,10b…の圧力でシャフ
ト４に外嵌して固定したカム８の周面に押し当てられ
る。これにより、カムフォロア20a,20bがカム８のカム
トップ部8aに当接する時には可動板19a,19bを介して可
動接点11a,11b…をバネ10a,10b…に抗して固定接点9a,9
b…から離隔させ、上下対をなす固定接点9a,9bの間を遮
断するとともに、カムフォロア20a,20bがカム８のカム
ボトム部8bに当接する時には可動接点11a,11b…をバネ1
0a,10b…の付勢力で固定接点9a,9b…に押し付けて、上
下対をなす固定接点9a,9bの間を閉じるようにしてい
る。The cam followers 20a and 20b extend from each of the movable plates 19a and 19b toward the rotation axis of the shaft 4,
And is linearly guided by a projection (not shown) provided on the base. The cam follower 20 is pressed against the outer peripheral surface of the cam 8 fixed to the shaft 4 by the pressure of the springs 10a, 10b. Thereby, when the cam followers 20a, 20b come into contact with the cam top portion 8a of the cam 8, the movable contacts 11a, 11b... Are fixed via the movable plates 19a, 19b against the springs 10a, 10b.
are separated from the fixed contacts 9a and 9b forming a pair, and when the cam followers 20a and 20b come into contact with the cam bottom portion 8b of the cam 8, the movable contacts 11a, 11b.
.. Are pressed against the fixed contacts 9a, 9b... By the urging force of 0a, 10b.
ここで、第５図に示すように、各可動接点11の先端面
11aを中央部が先端側に僅かに凸出する曲面に形成され
ている、またリードフレームの後端部16a、17aが傾斜し
ているため固定接点９と可動接点11とが互いに他方に接
触する接触面Ｐ（この場合、固定接点９の先端面9aはこ
の接触面Ｐに含まれる）を可動接点11の進退方向（前後
方向）に対して直角な方向よりもシャフト８及びカム８
の回転軸心方向に傾斜するようにしている。Here, as shown in FIG. 5, the distal end surface of each movable contact 11
The fixed contact 9 and the movable contact 11 come into contact with each other due to the central portion of the lead frame 11a having a curved surface slightly projecting toward the front end, and the rear ends 16a and 17a of the lead frame being inclined. The contact surface P (in this case, the distal end surface 9a of the fixed contact 9 is included in the contact surface P) has the shaft 8 and the cam 8 more than the direction perpendicular to the moving direction of the movable contact 11 (front-back direction).
In the direction of the rotation axis.
第１図に示すように、前記リードフレーム保持部15は
その左面を覆う端壁15aを有し、第１図、第４図、第６
図及び第７図に示すように、この端壁15aの前縁には底
面が中央凸部15aの前面と面一のＴ字溝からなる記号板
挿通部21が形成され、左右両側板２・３のうちの一方
（両方でもよいが、この実施例では右側板３）に記号板
挿通部21の底面と面一で、しかも、その上下方向の幅及
び位置を同じくする記号板載置面22が形成される。この
記号板載置面22のほぼ中央にはピン形状の突起23が形成
される。一方、帯板状の記号板24は各絶縁ケース１及び
前記の側面板３の前面にわたって、各絶縁ケース１の記
号板挿通部21に順次挿通されるとともに、記号板載置面
22にその一端部が載置される。この記号板24の一端部に
は前記突起23に対応する孔25を形成し、記号板24を補助
開閉器Ａに装着した状態で、この孔25に突起23を嵌入さ
せて記号板24を所定の位置に係止できるようにしてい
る。As shown in FIG. 1, the lead frame holding portion 15 has an end wall 15a that covers the left surface thereof.
As shown in FIG. 7 and FIG. 7, a sign plate insertion portion 21 is formed at the front edge of the end wall 15a. The symbol plate insertion portion 21 has a T-shaped groove whose bottom surface is flush with the front surface of the central projection 15a. One of the three (or both, but in this embodiment, the right plate 3) is flush with the bottom surface of the symbol plate insertion portion 21 and has the same width and position in the vertical direction. Is formed. A pin-shaped projection 23 is formed substantially at the center of the symbol plate mounting surface 22. On the other hand, the strip-shaped symbol plate 24 is sequentially inserted into the symbol plate insertion portion 21 of each insulating case 1 over the front surface of each of the insulating cases 1 and the side plates 3, and the symbol plate mounting surface.
One end is placed on 22. A hole 25 corresponding to the projection 23 is formed at one end of the symbol plate 24. With the symbol plate 24 attached to the auxiliary switch A, the projection 23 is fitted into the hole 25 to fix the symbol plate 24 to a predetermined position. It can be locked in the position.
また、前記シャフト４は、第４図及び第８図に示すよ
うに、非円形（ここでは４角）の断面を有する軸で構成
され、左右両側面板２・３にそれぞれ１対の軸受26・26
…を介して回転自在に支持される。シャフト４の右端部
4bは側面板３及び軸受26・26…よりも外側に突出させて
あり、その右端部4bに止輪27を外嵌するための周溝28が
形成される。そして、この周溝28に嵌合させた止輪27を
軸受26あるいは右側面板３に受け止めさせることにより
シャフト４の軸長手方向の変位を防止している。As shown in FIGS. 4 and 8, the shaft 4 is constituted by a shaft having a non-circular (here, square) cross section, and a pair of bearings 26. 26
Are rotatably supported via. Right end of shaft 4
4b is projected outwardly from the side plate 3 and the bearings 26, 26,..., And a peripheral groove 28 for externally fitting the retaining ring 27 is formed at the right end 4b. The retaining ring 27 fitted into the peripheral groove 28 is received by the bearing 26 or the right side plate 3 to prevent the shaft 4 from being displaced in the axial longitudinal direction.
なお、第２図に示すように、遮断器Ｍの器匣31の前面
板31aには、補助開閉器Ａの前方に位置して扉36で開閉
される窓37が設けられる。As shown in FIG. 2, a window 37 which is located in front of the auxiliary switch A and is opened and closed by a door 36 is provided on the front plate 31a of the casing 31 of the circuit breaker M.
次に、本発明の作用について説明する。 Next, the operation of the present invention will be described.
この補助開閉器Ａにおいては、前記各端子金具16b.16
b,17b,17bを絶縁体ケース１の前側部に配置しているの
で、前記各端子金具16b.16b,17b,17b全ての外部配線を
絶縁体ケース１の前側から接続することができ、遮断機
Ｍの機匣31の扉36を開くことにより、容易に補助開閉器
Ａの前方から外部配線の補助開閉器Ａへの接続作業及び
接続状態の点検作業等を行うことができる。In this auxiliary switch A, the terminal fittings 16b.16
Since b, 17b and 17b are arranged on the front side of the insulator case 1, all the external wiring of each of the terminal fittings 16b, 16b, 17b and 17b can be connected from the front side of the insulator case 1 and cut off. By opening the door 36 of the casing 31 of the machine M, the work of connecting the external wiring to the auxiliary switch A from the front of the auxiliary switch A, the check of the connection state, and the like can be easily performed.
また、この補助開閉器Ａにおいては、固定接点9a,9b
…と可動接点11a,11b…とが互いに他方に接触する接触
面Ｐを可動接点11a,11b…の進退方向に対して直角な方
向よりもシャフト４及びカム８の回転軸心方向に傾斜さ
せてあるので、開閉作動時にカム８から可動接点11a,11
b…に伝達される衝撃力Ｆが接触面Ｐに直角な成分FVと
接触面Ｐの面方向の成分FPとに分力されるので、接触面
Ｐの面方向に働く衝撃力Ｆ′、即ち、面方向の成分FPを
可動接点11a,11b…に伝達される衝撃力Ｆよりも減少さ
せることができる。また、バネ10による荷重により可動
接点11,11に伝達される力FQが接触面Ｐの面方向の成分
Ｆ″となり面方向に働く衝撃力の成分の減少を図ること
ができる。従って、固定接点9a,9b…及び可動接点11a,1
1b…の磨耗を減少させて耐久性を高めることができる。In this auxiliary switch A, the fixed contacts 9a, 9b
And the contact surface P where the movable contacts 11a, 11b are in contact with each other are inclined more in the direction of the rotation axis of the shaft 4 and the cam 8 than in the direction perpendicular to the direction in which the movable contacts 11a, 11b. There is a movable contact 11a, 11
Since b ... impact force F transmitted to is force component in the component F P in the planar direction of the contact plane P and perpendicular components F V to the contact plane P, the impact force F acting in the surface direction of the contact surface P ' , i.e., the plane direction of the component F P and the movable contact 11a, than the impact force F transmitted to 11b ... can be reduced. In addition, the force FQ transmitted to the movable contacts 11, 11 due to the load by the spring 10 becomes the component F ″ in the surface direction of the contact surface P, and the component of the impact force acting in the surface direction can be reduced. 9a, 9b ... and movable contacts 11a, 1
1b ... wear can be reduced to increase durability.
また、右方の側面板３及び絶縁体ケース１・１…にわ
たって一連に延びる帯板状の記号板24を設け、絶縁体ケ
ース１・１…の前側面に記号板挿通部21を形成するとと
もに、右方の側面板３の前側面に前記記号板挿通部21の
底面と面一状に記号板載置面22を形成し、前記記号板24
の右端部に固定用の孔25を形成し、前記記号板載置面22
にこの孔25に嵌脱される固定用の突起23を形成している
ので、右方の側面板３の記号板載置面22から順に各絶縁
体ケース１・１…の記号板挿通部21・21…に記号板24を
滑り込ませ、最後に記号板24の右端部に形成した孔25を
記号載置面22の突起23に嵌合させることにより、記号板
24を補助開閉器Ａに簡単に装着することができるととも
に、記号板24の右端部を記号板載置面22から浮き上がら
せてその右端部に形成した孔25を記号板載置面22の突起
23から離脱させ、番号板24を右方向に引き抜くことによ
り、記号板24を補助開閉器Ａから簡単に取り外すことが
できる。In addition, a strip-shaped symbol plate 24 extending continuously over the right side plate 3 and the insulator cases 1... Is provided, and a symbol plate insertion portion 21 is formed on the front side surface of the insulator cases 1. On the front side surface of the right side plate 3, a sign plate mounting surface 22 is formed flush with the bottom surface of the sign plate insertion portion 21;
A hole 25 for fixing is formed at the right end of the symbol plate mounting surface 22.
Since the fixing projections 23 are formed in the holes 25 so as to be fitted into and removed from the holes 25, the symbol plate insertion portions 21 of the insulator cases 1, 1,...・ The symbol plate 24 is slid into 21... Finally, the hole 25 formed at the right end of the symbol plate 24 is fitted into the projection 23 of the symbol mounting surface 22, so that the symbol plate is
24 can be easily mounted on the auxiliary switch A, and the right end of the symbol plate 24 is raised from the symbol plate mounting surface 22 so that a hole 25 formed in the right end thereof is formed as a projection on the symbol plate mounting surface 22.
The sign plate 24 can be easily removed from the auxiliary switch A by disengaging the number plate 23 and pulling out the number plate 24 to the right.
また、第16図に示すようにシャフト４の右端部4bに止
輪27を外嵌する周溝28を、シャフト４に操作力を入力す
る左端部4aと反対側の右端部4bに形成しているので、周
溝28の形成箇所におけるシャフト４の曲げモーメントを
０にして、周溝28の位置でシャフト４が曲がったり、折
損したりすることを防止できる。また、第15図に示すよ
うに、可動接点11の先端面11aを固定接点９の先端面9a
と同様に可動接点11の進退方向に対して直角な方向より
もシャフト104及びカム８の回転軸心方向に傾斜させ、
衝撃力の緩和と接触面の片へり（片磨耗）をなくし、接
点の耐久性を持たせることができる。As shown in FIG. 16, a peripheral groove 28 for externally fitting the retaining ring 27 to the right end 4b of the shaft 4 is formed in the right end 4b opposite to the left end 4a for inputting an operating force to the shaft 4. Therefore, the bending moment of the shaft 4 at the position where the circumferential groove 28 is formed is set to zero, and the shaft 4 can be prevented from being bent or broken at the position of the circumferential groove 28. As shown in FIG. 15, the distal end surface 11a of the movable contact 11 is
Similarly to the above, the movable contact 11 is tilted in the direction of the rotation axis of the shaft 104 and the cam 8 from the direction perpendicular to the direction of movement of the movable contact 11,
It is possible to reduce the impact force and eliminate one edge (one side wear) of the contact surface, thereby providing the durability of the contact.
「発明の効果」 以上のように、本発明の補助開閉器は、複数の電流開
閉部を有する開閉ユニットが１つまたは複数互いに連結
される開閉ユニット体と、前記開閉ユニット体の両端に
配置される側面板と、前記両側面板に回転可能に支持さ
れるシャフトとを備え、各開閉ユニットが、前記側面板
に連結される絶縁ケースと、前記シャフトに固定される
カムと、一端部に固定接点を有し前記絶縁ケースに固定
される少なくとも１対のリードフレームと、前記絶縁ケ
ースにバネを介して浮動支持され、前記シャフトの回転
に伴う前記カムの回転により前記シャフトと直角方向に
進退し対をなす前記固定接点に同時に接離して前記固定
接点と断続する少なくとも１対の可動接点とを備え、前
記シャフトが外部の開閉装置の開閉動作に連動して回転
するように構成する補助開閉器であって、前記１対の可
動接点における可動板を浮動支持するバネを２個のバネ
で構成し、個々のバネを各可動接点の直下に配置し、前
記固定接点と可動接点とが互いに接触する１対の接触面
を可動接点の進退方向に対して直角な方向から傾斜させ
且つ上記１対の接触面はその延長線上で交差させたの
で、補助開閉器の外部から加わる振動時、および開閉作
動時に、可動接点に作用する衝撃力（可動接点の進退方
向に直角方向の力Ｆ）が接触面に直角な成分と接触面の
面方向の成分Ｆ′とに分力されて緩和され、しかれ可動
板で連結された両バネのうち、一方は圧縮荷重が大き
く、他方は一方より圧縮荷重が小さくなるため、それら
の圧縮荷重差が固定接点から可動接点を滑らそうとする
力の制止力となり、さらにバネ10による荷重により可動
接点11,11に伝達される衝撃力（可動接点の進退方向の
力FQ）が接触面Ｐの面方向の制限Ｆ″と小さくなり、接
触面の面方向に働く衝撃力を可動接点に伝達される衝撃
力よりも減少させることができ、固定接点および可動接
点の磨耗とチャタリングを減少させて耐久性と信頼性を
高めることができる。[Effects of the Invention] As described above, the auxiliary switch of the present invention is provided with a switching unit body in which one or more switching units having a plurality of current switching units are connected to each other, and is disposed at both ends of the switching unit body. Side plates, and a shaft rotatably supported by the both side plates, wherein each opening / closing unit includes an insulating case connected to the side plates, a cam fixed to the shaft, and a fixed contact at one end. At least one pair of lead frames fixed to the insulating case; and a pair of lead frames floatingly supported by the insulating case via a spring, and advancing and retreating in a direction perpendicular to the shaft by rotation of the cam accompanying rotation of the shaft. And at least one pair of movable contacts intermittently connected to and separated from the fixed contact, wherein the shaft rotates in conjunction with an opening and closing operation of an external opening and closing device. An auxiliary switch configured as described above, wherein a spring for floatingly supporting the movable plate in the pair of movable contacts is constituted by two springs, and each spring is disposed immediately below each movable contact, The pair of contact surfaces where the and the movable contact come into contact with each other are inclined from a direction perpendicular to the direction of movement of the movable contact, and the pair of contact surfaces intersect on an extension of the pair. The impact force (force F in the direction perpendicular to the moving direction of the movable contact) acting on the movable contact at the time of vibration applied from above and at the time of opening and closing operation is divided into a component perpendicular to the contact surface and a component F 'in the surface direction of the contact surface. Of the two springs connected by the movable plate, one of them has a large compressive load and the other has a smaller compressive load than the other, so the difference in the compressive load slides the movable contact from the fixed contact. It becomes the stopping force of the power to try and further The impact force transmitted to the movable contacts 11, 11 due to the load of the contact 10 (the force FQ in the forward and backward directions of the movable contact) becomes smaller than the limit F ″ in the surface direction of the contact surface P, and the impact force acting in the surface direction of the contact surface Can be made smaller than the impact force transmitted to the movable contact, and wear and chattering of the fixed contact and the movable contact can be reduced, thereby improving durability and reliability.
また、各リードフレームの他端部を絶縁ケースの軸に
並行な一側部にそれぞれ延在させ、その他端部にそれそ
れ外部配線接続用の端子金具を設けたので、各端子金具
全ての外部配線を絶縁ケースの一側部から接続すること
ができ、容易に補助開閉器の一方から外部配線の補助開
閉器への接続作業および接続状態の点検作業を行うこと
ができ、さらに、リードフレームであるので、その一端
部に固定接点を設け、その一端部を折り曲げることも容
易であり、その他端部を絶縁ケースの一側部に延長し配
置することも容易である。Also, the other end of each lead frame is extended to one side parallel to the axis of the insulating case, and the other end is provided with terminal fittings for external wiring connection. The wiring can be connected from one side of the insulation case, and the work of connecting the external wiring to the auxiliary switch from one side of the auxiliary switch and checking the connection can be easily performed. Therefore, it is easy to provide a fixed contact at one end and to bend one end thereof, and it is also easy to extend and arrange the other end to one side of the insulating case.
また、シャフトは両側面板にそれぞれ軸受を介して回
転可能に支持され，前記シャフトの一端部を外部の開閉
装置に連結しその開閉装置の開閉動作に連動して開閉ユ
ニット内に設けた可動接点と固定接点とを接離させると
共に、前記シャフトに前記シャフトの他端部の前記軸受
より外側に周溝を形成し、前記シャフトが前記軸受に対
して軸方向に移動するのを防止するように前記周溝に止
輪を外嵌したので、周溝の形成箇所におけるシャフトの
曲げモーメントが０となり、周溝の位置でシャフトが曲
がったり、破損したりすることが防止できるとともに、
シャフトを小径にして補助開閉器の軽量化および小型化
をはかることができ、さらに、可動接点に作用する衝撃
力の緩和と相まって、補助開閉器に加わる衝撃的振動に
耐える補助開閉器を構成できる。The shaft is rotatably supported on both side plates via bearings. One end of the shaft is connected to an external switching device, and a movable contact provided in the switching unit in conjunction with the opening and closing operation of the switching device. Along with contacting and separating the fixed contact, a circumferential groove is formed on the shaft outside the bearing at the other end of the shaft so that the shaft is prevented from moving in the axial direction with respect to the bearing. Since the retaining ring is fitted over the peripheral groove, the bending moment of the shaft at the location where the peripheral groove is formed becomes zero, and the shaft can be prevented from being bent or damaged at the position of the peripheral groove,
The auxiliary switch can be reduced in weight and size by reducing the diameter of the shaft, and in addition to the reduction of the impact force acting on the movable contact, an auxiliary switch that can withstand the shock vibration applied to the auxiliary switch can be configured. .
第１図は本発明の一実施例に係る補助開閉器の絶縁ケー
スの側面図、第２図はその補助開閉器を装着した遮断器
の要部の斜視図、第３図はその補助開閉器の平面図、第
４図はその補助開閉器の正面図、第５図はその固定・可
動両接点に作用する衝撃力の方向を示す力線図、第６図
はその補助開閉器の正面要部の斜視図、第７図はその記
号板の着脱要領を示す縦断側面図、第８図はそのシャフ
トの正面図、第９図は従来の補助開閉器の正面図、第10
図は従来の補助開閉器の絶縁ケースの側面図、第11図は
従来の補助開閉器の正面要部の斜視図、第12図はそのシ
ャフトの正面図、第13図は従来の補助開閉器の変形例の
側面図、第14図は従来の補助開閉器の固定・可動両接点
に作用する衝撃力の方向を示す力線図、第15図は衝撃力
の緩和と接触面の片へり（磨耗）をなくした固定・可動
接点の側面図、第16図はシャフトにかかる曲げモーメン
ト図である。 Ａ……補助開閉器 Ｍ……遮断器 Ｐ……接触面 １……開閉ユニット ２……左側面板 ３……右側面板 ４……シャフト 4a……シャフト４の左端部 4b……シャフト４の右端部 ７……絶縁体ケース ８……カム ９……固定接点 10……バネ 11……可動接点 16b……端子金具 17b……端子金具 24……記号板 21……記号板挿通部 22……記号板載置面 23……突起 27……止輪 27……周溝1 is a side view of an insulating case of an auxiliary switch according to one embodiment of the present invention, FIG. 2 is a perspective view of a main part of a circuit breaker to which the auxiliary switch is mounted, and FIG. 3 is the auxiliary switch. , FIG. 4 is a front view of the auxiliary switch, FIG. 5 is a force diagram showing the direction of an impact force acting on the fixed and movable contacts, and FIG. 6 is a front view of the auxiliary switch. FIG. 7 is a longitudinal side view showing how to attach and detach the symbol plate, FIG. 8 is a front view of the shaft, FIG. 9 is a front view of a conventional auxiliary switch, FIG.
Fig. 11 is a side view of an insulating case of a conventional auxiliary switch. Fig. 11 is a perspective view of a main part of a conventional auxiliary switch. Fig. 12 is a front view of a shaft thereof. Fig. 13 is a conventional auxiliary switch. FIG. 14 is a force diagram showing the direction of the impact force acting on both the fixed and movable contacts of the conventional auxiliary switch, and FIG. 15 is a diagram illustrating the relaxation of the impact force and one edge of the contact surface ( 16 is a side view of the fixed / movable contact with no wear, and FIG. 16 is a view of a bending moment applied to the shaft. A ... Auxiliary switch M ... Circuit breaker P ... Contact surface 1 ... Switching unit 2 ... Left side plate 3 ... Right side plate 4 ... Shaft 4a ... Left end of shaft 4 4b ... Right end of shaft 4 Part 7 ... Insulator case 8 ... Cam 9 ... Fixed contact 10 ... Spring 11 ... Movable contact 16b ... Terminal fitting 17b ... Terminal fitting 24 ... Symbol plate 21 ... Symbol plate insertion part 22 ... Sign plate mounting surface 23 Projection 27 Retaining ring 27 Groove
───────────────────────────────────────────────────── フロントページの続き (72)発明者 細見 守 兵庫県尼崎市塚口本町８丁目１番１号 三菱電機株式会社伊丹製作所内 (72)発明者 吉積 敏昭 兵庫県尼崎市塚口本町８丁目１番１号 三菱電機株式会社伊丹製作所内 (72)発明者 米沢 毅 兵庫県尼崎市塚口本町８丁目１番１号 三菱電機株式会社伊丹製作所内 (72)発明者 杉山 勉 兵庫県尼崎市塚口本町８丁目１番１号 三菱電機株式会社伊丹製作所内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Mamoru Hosomi 8-1-1, Tsukaguchi Honcho, Amagasaki-shi, Hyogo Mitsubishi Electric Corporation Itami Works (72) Inventor Toshiaki Yoshizumi 8-1-1, Tsukaguchi-Honcho, Amagasaki-shi, Hyogo No. 1 Mitsubishi Electric Corporation Itami Works (72) Inventor Takeshi Yonezawa 8-1-1, Tsukaguchi Honcho, Amagasaki City, Hyogo Prefecture Mitsubishi Electric Corporation Itami Works (72) Inventor Tsutomu Sugiyama 8-Chome Honmachi Tsukaguchi Amagasaki City, Hyogo Prefecture No. 1 Mitsubishi Electric Corporation Itami Works
Claims (4)
１つまたは複数互いに連結される開閉ユニット体と、前
記開閉ユニット体の両端に配置される側面板と、前記両
側面板に回転可能に支持されるシャフトとを備え、各開
閉ユニットが、前記側面板に連結される絶縁ケースと、
前記シャフトに固定されるカムと、一端部に固定接点を
有し前記絶縁ケースに固定される少なくとも１対のリー
ドフレームと、前記絶縁ケースにバネを介して浮動支持
される１対が可動板で連結され、前記シャフトの回転に
伴う前記カムの回転により前記シャフトと直角方向に進
退し対をなす前記固定接点に同時に接離して前記固定接
点と断続する少なくとも１対の可動接点とを備え、前記
シャフトが外部の開閉装置の開閉動作に連動して回転す
るように構成する補助開閉器であって、前記１対の可動
接点における可動板を浮動支持するバネを２個のバネで
構成し、個々のバネを各可動接点の直下に配置し、前記
固定接点と可動接点とが互いに接触する１対の接触面を
可動接点の進退方向に対して直角な方向から傾斜させ且
つ上記１対の接触面はその延長線上で交差させた補助開
閉器。An open / close unit having one or more open / close units having a plurality of current open / close sections is connected to each other, side plates disposed at both ends of the open / close unit, and rotatably supported by the both side plates. An opening and closing unit, each opening and closing unit, an insulating case connected to the side plate,
A cam fixed to the shaft, at least one pair of lead frames having fixed contacts at one end and fixed to the insulating case, and a pair of floating plates supported on the insulating case via a spring by a movable plate; Coupled with the fixed contact forming a pair at right and left directions with the rotation of the cam along with the rotation of the shaft, and at least one pair of movable contacts intermittently connected to and separated from the fixed contact forming a pair. An auxiliary switch configured so that a shaft rotates in conjunction with an opening / closing operation of an external switching device, wherein a spring for floatingly supporting a movable plate in the pair of movable contacts includes two springs, Are disposed immediately below each movable contact, and a pair of contact surfaces where the fixed contact and the movable contact come into contact with each other are inclined from a direction perpendicular to the direction of movement of the movable contact, and the pair of contacts Auxiliary switchgear crossed on that extension line.
シャフトに並行な一側部にそれぞれ延在させ、その他端
部にそれぞれ外部配線接続用の端子金具を設けた請求項
１記載の補助開閉器。2. The auxiliary according to claim 1, wherein the other end of each lead frame extends to one side parallel to the shaft of the insulating case, and the other end has terminal fittings for connecting external wiring. Switch.
の１対と可動接点の１対とを有する電流開閉部をシャフ
トを間にしてそれぞれ互いに対向配置し、各リードフレ
ームの他端部を絶縁ケースのシャフトに並行な一側部に
それぞれ延在させ、その他端部にそれぞれ外部配線接続
用の端子金具を設けた請求項１記載の補助開閉器。3. A current switching unit having a pair of fixed contacts and a pair of movable contacts provided at one end of a lead frame is arranged to face each other with a shaft interposed therebetween, and the other end of each lead frame is connected to the other. 2. The auxiliary switch according to claim 1, wherein the auxiliary switch is extended on one side parallel to the shaft of the insulating case, and provided with terminal fittings for connecting external wiring at the other end.
て回転可能に支持され、前記シャフトの一端部を外部の
開閉装置に連結しその開閉装置の開閉動作に連動して開
閉ユニット内に設けた可動接点と固定接点とを接離させ
ると共に、前記シャフトに前記シャフトの他端部の前記
軸受より外側に周溝を形成し、前記シャフトが前記軸受
に対して軸方向に移動するのを防止するように前記周溝
に止輪を外嵌した請求項１ないし３のいずれか１項記載
の補助開閉器。4. A shaft is rotatably supported on both side plates via bearings, and one end of the shaft is connected to an external opening / closing device and provided in the opening / closing unit in conjunction with the opening / closing operation of the opening / closing device. The movable contact and the fixed contact are brought into contact with and separated from each other, and a circumferential groove is formed on the shaft at the other end of the shaft outside the bearing to prevent the shaft from moving in the axial direction with respect to the bearing. The auxiliary switch according to any one of claims 1 to 3, wherein a retaining ring is externally fitted to the peripheral groove as described above.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2319264A JP2593242B2 (en) | 1990-11-24 | 1990-11-24 | Auxiliary switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2319264A JP2593242B2 (en) | 1990-11-24 | 1990-11-24 | Auxiliary switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04190529A JPH04190529A (en) | 1992-07-08 |
| JP2593242B2 true JP2593242B2 (en) | 1997-03-26 |
Family
ID=18108261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2319264A Expired - Lifetime JP2593242B2 (en) | 1990-11-24 | 1990-11-24 | Auxiliary switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2593242B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5475540B2 (en) * | 2010-04-27 | 2014-04-16 | 株式会社東芝 | Vacuum breaker operation mechanism |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4517072Y1 (en) * | 1967-07-08 | 1970-07-14 | ||
| JPS5423110A (en) * | 1977-07-19 | 1979-02-21 | Matsushita Electric Ind Co Ltd | Production of decorative board with curved surface |
| JPS5755153B2 (en) * | 1977-09-27 | 1982-11-22 |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5621148Y2 (en) * | 1976-12-17 | 1981-05-19 | ||
| JPS6213310Y2 (en) * | 1979-03-14 | 1987-04-06 | ||
| JPH0130777Y2 (en) * | 1980-09-17 | 1989-09-20 | ||
| JPS6030778Y2 (en) * | 1981-10-27 | 1985-09-14 | 日本電気ホームエレクトロニクス株式会社 | Display plate mounting device for display members |
-
1990
- 1990-11-24 JP JP2319264A patent/JP2593242B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4517072Y1 (en) * | 1967-07-08 | 1970-07-14 | ||
| JPS5423110A (en) * | 1977-07-19 | 1979-02-21 | Matsushita Electric Ind Co Ltd | Production of decorative board with curved surface |
| JPS5755153B2 (en) * | 1977-09-27 | 1982-11-22 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04190529A (en) | 1992-07-08 |
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