JP3018999B2 - Mutual locking device for electromagnetic contactor - Google Patents

Mutual locking device for electromagnetic contactor

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Publication number
JP3018999B2
JP3018999B2 JP8231520A JP23152096A JP3018999B2 JP 3018999 B2 JP3018999 B2 JP 3018999B2 JP 8231520 A JP8231520 A JP 8231520A JP 23152096 A JP23152096 A JP 23152096A JP 3018999 B2 JP3018999 B2 JP 3018999B2
Authority
JP
Japan
Prior art keywords
electromagnetic contactor
contact
lock
electromagnetic
locking device
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
Application number
JP8231520A
Other languages
Japanese (ja)
Other versions
JPH1064392A (en
Inventor
民生 林田
Original Assignee
株式会社戸上電機製作所
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 by 株式会社戸上電機製作所 filed Critical 株式会社戸上電機製作所
Priority to JP8231520A priority Critical patent/JP3018999B2/en
Publication of JPH1064392A publication Critical patent/JPH1064392A/en
Application granted granted Critical
Publication of JP3018999B2 publication Critical patent/JP3018999B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は隣合う電磁接触器間
に設置され、両電磁接触器が同時に投入されることを防
止する電磁接触器の相互鎖錠装置に関するものである。
更に詳しくは、安定して作動し、製造時における部品管
理がしやすい電磁接触器の相互鎖錠装置に関するもので
ある。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interlocking device for an electromagnetic contactor, which is provided between adjacent electromagnetic contactors and prevents both electromagnetic contactors from being closed simultaneously.
More specifically, the present invention relates to a mutual locking device of an electromagnetic contactor that operates stably and is easy to manage parts during manufacturing.

【0002】[0002]

【従来技術】例えば、電動機を正逆回転方向に制御運転
する装置において、正回転用と逆回転用の電磁接触器が
同時に投入されることがないように、相互鎖錠装置が使
用されている。この相互鎖錠装置は、一方の電磁接触器
が投入されているときは、他方の電磁接触器はその投入
が機械的に阻止されるだけでなく、電気的にも阻止され
るよう構成されている。
2. Description of the Related Art For example, in a device for controlling and operating a motor in forward and reverse rotation directions, a mutual locking device is used so that electromagnetic contactors for forward rotation and reverse rotation are not simultaneously turned on. . The mutual locking device is configured such that when one electromagnetic contactor is turned on, the other electromagnetic contactor is not only mechanically prevented from being turned on but also electrically stopped. I have.

【0003】このような相互鎖錠装置の一例としては、
実開平3−32329号公報に記載されているものがあ
る。この相互鎖錠装置は、一方の電磁接触器が投入され
て応動部材が作動すると、鎖錠ピンの作用により他方の
電磁接触器の投入が機械的に阻止されると共に、他方の
電磁接触器に係る回路上にある接触子が離隔断路されて
電気的にも投入が阻止される構造である。また、この相
互鎖錠装置における電気的阻止部は、以前の装置のよう
に電磁接触器の補助接点を利用する構造ではなく、相互
鎖錠装置に装備されているので、電磁接触器の補助接点
を、例えばランプ回路等、他の用途に使用できる利点も
ある。
[0003] One example of such a mutual locking device is as follows.
There is one described in Japanese Utility Model Laid-Open No. 3-32929. In this mutual locking device, when one of the electromagnetic contactors is turned on and the responding member is operated, the locking pin prevents the other electromagnetic contactor from being turned on mechanically by the action of the locking pin, and the other electromagnetic contactor is turned on. In this structure, the contacts on such a circuit are separated from each other and electrically blocked from being turned on. In addition, since the electric blocking portion in this mutual locking device is not provided with the structure using the auxiliary contact of the electromagnetic contactor as in the previous device, but is provided in the mutual locking device, the auxiliary contact of the electromagnetic contactor is used. There is also an advantage that can be used for other applications such as a lamp circuit.

【0004】[0004]

【発明が解決しようとする課題】しかし、上記したよう
な従来の電磁接触器の相互鎖錠装置には、次のような課
題があった。 (a)可動接触子を固定接触子から離隔させるために、
半円状に形成された可動接触子の突部を応動部材でその
摺動方向に押し下げ、その際の逃げ力を利用して可動接
触子を離隔方向へ開く構造を採用しているため、押し下
げ初期に大きな力が必要になる。従って、応動部材を作
動させる電磁接触器の可動部にも大きな負担がかかり、
電磁接触器の作動に支障をきたす場合がある。また、可
動接触子が変形しやすい問題もある。
However, the above-mentioned conventional mutual locking device for an electromagnetic contactor has the following problems. (A) To separate the movable contact from the fixed contact,
The protruding part of the movable contact formed in a semicircular shape is pushed down in the sliding direction by a response member, and the movable contact is opened in the separation direction using the relief force at that time, so it is pushed down. A great deal of power is needed initially. Therefore, a large load is also applied to the movable part of the electromagnetic contactor that operates the response member,
It may interfere with the operation of the electromagnetic contactor. There is also a problem that the movable contact is easily deformed.

【0005】(b)ロック時に鎖錠ピンの位置を安定さ
せる付勢部材としてコイルバネを使用しており、製造時
にはコイルバネを引き伸ばして鎖錠ピンに掛けるという
作業性質上、作業がしにくく、コイルバネを紛失しやす
い問題がある。また、その部品管理を行わなければなら
ないが、コイルバネは互いに絡んでしまいやすい等、管
理がしにくい部品の一つである。
(B) A coil spring is used as an urging member for stabilizing the position of the lock pin at the time of locking. At the time of manufacture, the coil spring is stretched and hanged on the lock pin, so that it is difficult to perform the operation. There is a problem that can easily be lost. In addition, the components must be managed, but the coil springs are one of the components that are difficult to manage because they are easily entangled with each other.

【0006】本発明は上記課題を解消するもので、可動
接触子を比較的小さな力で固定接触子と離隔できるよう
にし、電磁接触器の投入時に可動部にかかる負担を軽減
して電磁接触器の作動に支障がないようにした電磁接触
器の相互鎖錠装置を提供することを目的とする。また、
製造時に作業効率を低下させたり部品管理がしにくくな
る要素を含まず、製造及び部品管理がしやすい電磁接触
器の相互鎖錠装置を提供することを目的とする。
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has a structure in which a movable contact can be separated from a fixed contact with a relatively small force, and a load applied to a movable portion when the electromagnetic contactor is turned on is reduced. It is an object of the present invention to provide an interlocking device for an electromagnetic contactor which does not hinder the operation of the electromagnetic contactor. Also,
An object of the present invention is to provide an interlocking device for an electromagnetic contactor that does not include elements that lower the working efficiency during manufacturing and makes it difficult to manage parts, and is easy to manufacture and manage parts.

【0007】[0007]

【課題を解決するための手段】上記目的を達成するため
に講じた本発明の手段は次のとおりである。第1の発明
にあっては、隣合う電磁接触器間に設置され、各電磁接
触器が同時に投入されることを防止する電磁接触器の相
互鎖錠装置であって、この装置は、軸を中心として回動
し、鎖錠部材を有するロックレバーと、電磁接触器の投
入及び解除により作動し、一方が作動状態にあるときに
は上記鎖錠部材をロック位置に位置させ、その作用によ
り他方は作動が阻止されるようにしてある一対の応動部
材と、固定接触子と、当該固定接触子側に付勢され常態
においては上記固定接触子と接触している弾性を有する
可動接触子を有し、上記各電磁接触器に係る回路内にあ
る回路断続部と、を備えており、上記ロックレバーと一
対の応動部材は、それぞれ独立しており、上記ロックレ
バーは軸を中心に揺動し、上記一対の応動部材は、ロッ
クレバーに添った直線動をし、一方の電磁接触器の投入
時には、上記鎖錠部材により非投入側の電磁接触器に対
応する上記回路断続部の上記可動接触子をその付勢力に
抗し上記固定接触子から離隔し断路すると共に、その付
勢力によって上記鎖錠部材をロック位置に固定するよう
にした、電磁接触器の相互鎖錠装置である。
Means of the present invention taken to achieve the above object are as follows. According to a first aspect of the present invention, there is provided an interlocking device for an electromagnetic contactor, which is installed between adjacent electromagnetic contactors and prevents each electromagnetic contactor from being simultaneously turned on. It rotates about the center and operates by turning on and off a lock lever having a lock member and an electromagnetic contactor. When one is in the operating state, the lock member is positioned in the lock position, and the other is operated by the action. Having a movable contact having elasticity, which is urged toward the fixed contact and is in contact with the fixed contact in a normal state, equipped with a circuit interrupter unit within the circuit of the above-mentioned electromagnetic contactor, the locking lever and one
The pair of response members are independent of each other, and
The bar swings about an axis, and the pair of responding members
It performs a linear motion along with the clever, and when closing one of the electromagnetic contactors, the locking member opposes the movable contact of the circuit interrupting portion corresponding to the non-insertion side electromagnetic contactor against the urging force thereof. A mutual locking device for an electromagnetic contactor, wherein the locking member is separated from a fixed contact and is disconnected, and the locking member is fixed to a locked position by the urging force.

【0008】第2の発明にあっては、各電磁接触器が非
投入状態にあるときに上記ロックレバーの上記鎖錠部材
が上記各応動部材の実質的に中心に位置するようにする
位置決め手段を備えている、第1の発明に係る電磁接触
器の相互鎖錠装置である。
According to a second aspect of the present invention, when each of the electromagnetic contactors is in a non-closed state, the locking member of the lock lever is positioned substantially at the center of each of the responsive members. A mutual locking device for an electromagnetic contactor according to the first invention, comprising:

【0009】(作用)ロックレバーは軸を中心として回
動するようになっているので、応動部材が作動したと
き、鎖錠部材は可動接触子に接触するまでは負荷をあま
り生じることなく移動し、可動接触子に接触して付勢力
を受けても鎖錠部材の移動方向と可動接触子の付勢方向
はほぼ同じ方向であるため負荷はそれ程大きくならな
い。従って、可動接触子に無理な力がかからず、変形し
にくい。また、応動部材と連動する電磁接触器の可動部
の作動に支障をきたすことも防止できる。
(Operation) Since the lock lever is adapted to rotate about the axis, when the responsive member operates, the lock member moves without much load until it comes into contact with the movable contact. Even when the movable contact is in contact with and receives an urging force, the load does not increase so much because the moving direction of the locking member and the urging direction of the movable contact are substantially the same. Accordingly, no excessive force is applied to the movable contact, and the movable contact is not easily deformed. Further, it is possible to prevent the operation of the movable portion of the electromagnetic contactor interlocking with the response member from being hindered.

【0010】鎖錠部材をロック位置に固定する付勢部材
として可動接触子を利用しているので、従来装置のよう
にコイルバネ等、他の付勢部材を必要としない。従っ
て、部品点数が減るので、製造時の作業効率が向上し、
部品管理を容易にすることができる。
Since the movable contact is used as an urging member for fixing the lock member at the lock position, another urging member such as a coil spring is not required unlike the conventional device. Therefore, since the number of parts is reduced, work efficiency at the time of manufacturing is improved,
Parts management can be facilitated.

【0011】各電磁接触器が非投入状態にあるときにロ
ックレバーの鎖錠部材が各応動部材の実質的に中心に位
置するようにする位置決め手段を備えているものは、電
磁接触器の取り付け方向等に影響を受けることなく、非
投入時には常時中央に位置しているので誤作動が防止で
きる。
When the electromagnetic contactor is in a non-closed state, the locking means of the lock lever is provided with a positioning means for substantially centering the corresponding responsive member. Without being affected by the direction or the like, the erroneous operation can be prevented because the cradle is always located at the center when the hopper is not turned on.

【0012】[0012]

【発明の実施の形態】本発明の実施の形態を図面に基づ
き更に詳細に説明する。図1は本発明に係る相互鎖錠装
置の実施の形態を示す断面図、図2は相互鎖錠装置の図
1におけるa−a部分に対応した断面図、図3は図2に
おいて一方の応動部材が作動してロックした状態を示す
断面図である。図4は相互鎖錠装置の図1におけるb−
b部分に対応した断面図、図5は図4において一方の応
動部材が作動してロックした状態を示す断面図(可動接
触子23aは図示省略)、図6はケース部材のロックレ
バー軸支部分の要部縦断面図である。
Embodiments of the present invention will be described in more detail with reference to the drawings. FIG. 1 is a cross-sectional view showing an embodiment of a mutual locking device according to the present invention, FIG. 2 is a cross-sectional view corresponding to aa portion in FIG. 1 of the mutual locking device, and FIG. It is sectional drawing which shows the state which the member act | operated and locked. FIG. 4 is a cross-sectional view of the mutual locking device in FIG.
FIG. 5 is a cross-sectional view corresponding to a portion b, FIG. 5 is a cross-sectional view showing a state in which one of the response members is actuated and locked in FIG. 4 (the movable contact 23a is not shown), and FIG. It is a principal part longitudinal cross-sectional view.

【0013】相互鎖錠装置Uは合成樹脂製のケース1を
備えている。ケース1は厚さ方向における中央部分で二
分割される構造であり、同一形状のケース部材1a、1
bからなる。ケース部材1a、1bの中央上部には軸受
部10が設けてある。軸受部10には後述するロックレ
バーの軸が軸支される。軸受部10の下方には案内部1
1が上下方向に設けてある。案内部11の下側には貫通
した案内孔12が上下方向へ設けてある。案内部11に
は後述する応動部材がスライド可能に収容され、案内孔
12には応動部材の操作レバーが挿通される。また、符
号18は案内部材で、後述する応動部材の縦溝を嵌め入
れて案内する。
The mutual locking device U has a case 1 made of synthetic resin. The case 1 has a structure in which the case 1 is divided into two parts at the center in the thickness direction.
b. A bearing 10 is provided at the upper center of the case members 1a and 1b. A shaft of a lock lever described later is pivotally supported on the bearing portion 10. The guide 1 is located below the bearing 10.
1 is provided vertically. A guide hole 12 penetrating below the guide portion 11 is provided in a vertical direction. A responsive member described later is slidably accommodated in the guide portion 11, and an operation lever of the responsive member is inserted into the guide hole 12. Reference numeral 18 denotes a guide member, which guides by fitting a vertical groove of a response member described later.

【0014】案内部11の左右両側には接触子収容部1
3、14が設けてある。接触子収容部13、14の上部
には、回路断続部2を構成する可動側端子20a、20
bが装着してあり、各々の上面には端子ネジ21を介し
て圧着板22が取り付けてある。可動側端子20a、2
0bには可動接触子23a、23bの基部が固着してあ
る。可動接触子23a、23bは、位置決め手段を構成
し、弾性を有する導電板で形成されている。可動接触子
23a、23bの中間部には半長円状に湾曲された荷重
調整部24が設けてあり、先部には接点25が設けてあ
る。
The contact accommodating portions 1 are provided on both left and right sides of the guide portion 11.
3 and 14 are provided. Movable terminals 20 a, 20 constituting the circuit interrupting section 2 are provided above the contact accommodating sections 13, 14.
b is attached, and a crimp plate 22 is attached to each upper surface via terminal screws 21. Movable terminal 20a, 2
The bases of the movable contacts 23a and 23b are fixed to 0b. The movable contacts 23a and 23b constitute positioning means and are formed of an elastic conductive plate. A load adjusting section 24 curved in a semi-elliptical shape is provided at an intermediate portion between the movable contacts 23a and 23b, and a contact 25 is provided at a tip portion.

【0015】なお、可動接触子23aはケース部材1a
側に配置してあり、可動接触子23bはケース部材1b
側に配置してある。また、可動接触子23a、23bの
荷重調整部24の基部はケース部材1a、1bに設けて
ある突起15によって押圧されており、各接点25が後
述する固定接触子260の接点261に圧着するように
してある(図4参照)。また、荷重調整部24湾曲径を
可変することにより、接点圧力を調整することが可能で
ある。
The movable contact 23a is a case member 1a.
The movable contact 23b is disposed on the side of the case member 1b.
It is located on the side. The bases of the load adjusting portions 24 of the movable contacts 23a and 23b are pressed by protrusions 15 provided on the case members 1a and 1b, and each contact 25 is pressed against a contact 261 of a fixed contact 260 described later. (See FIG. 4). The contact pressure can be adjusted by changing the curved diameter of the load adjusting unit 24.

【0016】接触子収容部13、14の外側には端子収
容部16、17が設けてある。端子収容部16、17の
上部には回路断続部2を構成する固定側端子26a、2
6bが装着してあり、各々の上面には端子ネジ27を介
し圧着板28が取り付けてある。固定側端子26a、2
6bの一端側には固定接触子260が下方へ垂下して設
けてあり、その固定接触子260は上記接触子収容部1
3、14の内部の上記可動接触子23a、23bにそれ
ぞれ対向して収容されている。また、固定接触子260
には接点261が設けてある。
Terminal accommodating portions 16 and 17 are provided outside the contact accommodating portions 13 and 14, respectively. Fixed terminals 26a, 2a constituting the circuit intermittent part 2 are provided above the terminal accommodating parts 16, 17, respectively.
6b, and a crimping plate 28 is attached to each upper surface via terminal screws 27. Fixed side terminals 26a, 2
A fixed contact 260 is provided at one end of the contact housing 6b so as to hang downward.
The movable contacts 23a and 23b in the insides 3 and 14 are accommodated so as to face each other. In addition, the fixed contact 260
Is provided with a contact 261.

【0017】上記ケース1の各軸受部10には軸ピン3
1を回動自在に装着してロックレバー3が取り付けてあ
る。ロックレバー3はレバー30の上端部に設けてある
軸ピン31を中心に図1において奥行方向へ揺動するよ
うにしてある。レバー30の先端部には軸ピン31と平
行な鎖錠部材である鎖錠ピン32が設けてある。鎖錠ピ
ン32は軸ピン31と同様に断面円形のロッド状で、軸
ピン31より長く形成してある(図1参照)。また、ロ
ックレバー3の鎖錠ピン32は二枚の弾性を持つ可動接
触子23a、23bの間に小さな隙間dをもって設けて
あり、電磁接触器が非投入時はほぼ中央に位置してい
る。
Each of the bearings 10 of the case 1 has a shaft pin 3
1 is rotatably mounted and a lock lever 3 is mounted. The lock lever 3 swings in the depth direction in FIG. 1 around a shaft pin 31 provided at the upper end of the lever 30. A locking pin 32, which is a locking member parallel to the shaft pin 31, is provided at the tip of the lever 30. The lock pin 32 has a rod-like shape with a circular cross section like the shaft pin 31, and is formed longer than the shaft pin 31 (see FIG. 1). The lock pin 32 of the lock lever 3 is provided with a small gap d between the two elastic movable contacts 23a and 23b, and is located substantially at the center when the electromagnetic contactor is not turned on.

【0018】上記ケース1の各案内部11にはロックレ
バー3を挟むようにして応動部材4a、4bが収容して
ある。応動部材4a、4bにそれぞれ設けてある操作レ
バー40は案内孔12に挿通してある。各応動部材4
a、4bは内面を接触させて相互にスライドできるよう
にしてある。応動部材4a、4bの内面にはロックレバ
ー3の鎖錠ピン32を挿通する横溝41が設けてある。
横溝41の深さは鎖錠ピン32の直径分を収容できる深
さに形成されている。
Responsive members 4a and 4b are accommodated in each guide portion 11 of the case 1 so as to sandwich the lock lever 3. The operation levers 40 provided on the response members 4a and 4b are inserted through the guide holes 12. Each response member 4
Reference numerals a and 4b allow the inner surfaces to come into contact with each other so that they can slide with each other. On the inner surfaces of the response members 4a and 4b, there are provided lateral grooves 41 through which the lock pins 32 of the lock lever 3 are inserted.
The depth of the lateral groove 41 is formed to a depth that can accommodate the diameter of the lock pin 32.

【0019】また、応動部材4a、4bの内面には横溝
41と直角方向に縦溝42が設けてある。縦溝42のう
ち横溝41より上部側にはロックレバー3のレバー30
が収容され、横溝41より下側は上記ケース1の案内部
材18にスライド可能に嵌め込まれる。なお、横溝41
の上部側と鎖錠ピン32の間には鎖錠ピン32の移動を
可能にするため隙間が設けてあり、横溝41の上部側の
縁部にはロックレバー3を押し出すテーパーがついた押
出部410が設けてある(図2参照)。
A vertical groove 42 is provided on the inner surfaces of the response members 4a and 4b in a direction perpendicular to the horizontal groove 41. The lever 30 of the lock lever 3 is located above the horizontal groove 41 in the vertical groove 42.
Is accommodated, and the lower side of the lateral groove 41 is slidably fitted into the guide member 18 of the case 1. The lateral groove 41
A gap is provided between the upper side of the lock groove 32 and the lock pin 32 to enable the movement of the lock pin 32, and an upper edge of the lateral groove 41 has a tapered extruded portion for pushing out the lock lever 3. 410 is provided (see FIG. 2).

【0020】(作 用)図7は相互鎖錠装置の使用状態
を示す説明図、図8は相互鎖錠装置と電磁接触器を組み
合わせた状態の回路図である。図1ないし図8を参照し
て本発明の実施の形態の作用を説明する。まず、図7に
示すように、本発明に係る相互鎖錠装置Uを隣合う電磁
接触器MF、MRの間に設置する。なお、図7は一方の
電磁接触器が投入された状態を示しているが、当初は図
2に示すようにどちらの電磁接触器も投入されていない
状態で設置する。また、相互鎖錠装置Uの可動側端子2
0aと固定側端子26aには図8に示すA回路の電線が
直列接続される。また、可動側端子20bと固定側端子
26bには同じくB回路の電線が直列接続される。
(Operation) FIG. 7 is an explanatory view showing a use state of the mutual locking device, and FIG. 8 is a circuit diagram showing a state where the mutual locking device and the electromagnetic contactor are combined. The operation of the embodiment of the present invention will be described with reference to FIGS. First, as shown in FIG. 7, the mutual locking device U according to the present invention is installed between the adjacent electromagnetic contactors MF and MR. Although FIG. 7 shows a state in which one of the electromagnetic contactors is turned on, initially, as shown in FIG. 2, the apparatus is installed in a state in which neither of the electromagnetic contactors is turned on. Further, the movable side terminal 2 of the mutual locking device U
An electric wire of the circuit A shown in FIG. 8 is connected in series to 0a and the fixed terminal 26a. Similarly, an electric wire of circuit B is connected in series to the movable terminal 20b and the fixed terminal 26b.

【0021】例えば、一方の電磁接触器MRが投入され
たときには、図2、図4に示す状態から応動部材4aが
下方へ作動し、図3、図5、図7に示す状態になる。す
なわち、応動部材4aが下降すると横溝41の上面が鎖
錠ピン32に当たり、押出部410の作用により鎖錠ピ
ン32が応動部材4bの横溝41側に移動すると共にロ
ックレバー3も回動する。更に、応動部材4aが下降す
ると、その内面で鎖錠ピン32を応動部材4bの横溝4
1内部に完全に押込む。これにより、鎖錠ピン32の上
面は応動部材4bの横溝41の上面の近傍に位置し、応
動部材4bの下降が阻止されてロック状態となる。
For example, when one of the electromagnetic contactors MR is turned on, the responsive member 4a operates downward from the state shown in FIGS. 2 and 4, and enters the state shown in FIGS. That is, when the responsive member 4a descends, the upper surface of the lateral groove 41 hits the locking pin 32, and the locking pin 32 moves to the side of the lateral groove 41 of the responsive member 4b by the action of the pushing portion 410, and the lock lever 3 also rotates. Further, when the response member 4a descends, the locking pin 32 is inserted into the inner surface of the response groove 4a of the response member 4b.
1 Push it completely inside. As a result, the upper surface of the lock pin 32 is located near the upper surface of the lateral groove 41 of the response member 4b, and the lowering of the response member 4b is prevented and the locked state is established.

【0022】また、同時に応動部材4bの横溝41内部
に移動した鎖錠ピン32により、可動端子20b側の可
動接触子23bが外側へ押し込まれ、その接点25と固
定側端子26bの固定接触子260の接点261は離隔
されてB回路は断路される(図5参照)。なお、ロック
レバー3は軸ピン31を中心として回動するようになっ
ているので、応動部材4a、4bが作動したとき、鎖錠
ピン32は可動接触子23bに接触するまでは負荷をあ
まり生じることなく移動し、可動接触子23bに接触し
て付勢力を受けても鎖錠ピン32の移動方向と可動接触
子23bの付勢方向はほぼ同じ方向であるため負荷はそ
れ程大きくならない。従って、可動接触子23bに無理
な力がかからず、変形しにくい。また、応動部材4a、
4bと連動する電磁接触器MR、MFの可動部の作動に
支障をきたすことも防止できる。更には、開放時には可
動接触子23bの弾性力により、ロックレバー3は中立
位置へ移動する。
At the same time, the movable contact 23b on the movable terminal 20b side is pushed outward by the locking pin 32 moved into the lateral groove 41 of the responsive member 4b, and the contact 25 and the fixed contact 260 of the fixed terminal 26b are pushed. Are separated from each other and the circuit B is disconnected (see FIG. 5). Since the lock lever 3 rotates about the shaft pin 31, when the response members 4a and 4b operate, the locking pin 32 generates a large load until it comes into contact with the movable contact 23b. Even if the movable contact 23b moves without contact and receives a biasing force by contacting the movable contact 23b, the load does not increase so much because the moving direction of the lock pin 32 and the biasing direction of the movable contact 23b are substantially the same. Therefore, no excessive force is applied to the movable contact 23b, and the movable contact 23b is not easily deformed. In addition, the response member 4a,
The operation of the movable parts of the electromagnetic contactors MR and MF interlocked with 4b can be prevented. Further, at the time of opening, the lock lever 3 moves to the neutral position by the elastic force of the movable contact 23b.

【0023】このように、A回路側の電磁接触器MRが
投入されることによって、B回路側の電磁接触器MFは
機械的にも電気的にも投入が阻止される。また、電磁接
触器MRの投入が解除されると応動部材4aは元の位置
に戻り、例えば上記とは逆に電磁接触器MFが投入され
た場合、電磁接触器MRの投入は機械的にも電気的にも
阻止されることになる。
As described above, when the electromagnetic contactor MR on the A circuit side is turned on, the electromagnetic contactor MF on the B circuit side is prevented from being turned on both mechanically and electrically. In addition, when the closing of the electromagnetic contactor MR is released, the response member 4a returns to the original position. For example, when the electromagnetic contactor MF is closed, the feeding of the electromagnetic contactor MR is performed mechanically. It will also be electrically blocked.

【0024】なお、本明細書で使用している用語と表現
はあくまで説明上のものであって、限定的なものではな
く、上記用語、表現と等価の用語、表現を除外するもの
ではない。また、本発明は図示の実施の形態に限定され
るものではなく、特許請求の範囲の記載内において種々
の変形が可能である。
The terms and expressions used in the present specification are for explanation only, are not restrictive, and do not exclude terms and expressions equivalent to the above-mentioned terms and expressions. Further, the present invention is not limited to the illustrated embodiment, and various modifications are possible within the scope of the claims.

【0025】[0025]

【発明の効果】本発明は上記構成を備え、次の効果を有
する。 (a)ロックレバーは軸を中心として回動するようにな
っているので、応動部材が作動したとき鎖錠部材は可動
接触子に接触するまでは負荷をあまり生じることなく移
動し、可動接触子に接触して付勢力を受けても鎖錠部材
の移動方向と可動接触子の付勢方向はほぼ同じ方向であ
るため負荷はそれ程大きくならない。従って、可動接触
子に無理な力がかからず、変形しにくい。また、応動部
材と連動する電磁接触器の可動部の作動に支障をきたす
ことも防止できる。
The present invention has the above configuration and has the following effects. (A) Since the lock lever is adapted to rotate about the axis, when the responding member is actuated, the locking member moves with little load until it comes into contact with the movable contact. , The load does not increase so much because the moving direction of the locking member and the biasing direction of the movable contact are substantially the same. Accordingly, no excessive force is applied to the movable contact, and the movable contact is not easily deformed. Further, it is possible to prevent the operation of the movable portion of the electromagnetic contactor interlocking with the response member from being hindered.

【0026】(b)鎖錠部材をロック位置に固定する付
勢部材として可動接触子を利用しているので、従来装置
のようにコイルバネ等、他の付勢部材を必要としない。
従って、部品点数がその分少なくなるので、製造時の作
業効率が向上し、部品管理を容易にすることができる。
(B) Since the movable contact is used as an urging member for fixing the lock member at the lock position, there is no need for another urging member such as a coil spring as in the conventional device.
Therefore, the number of parts is reduced by that much, so that the working efficiency at the time of manufacturing is improved and the parts management can be facilitated.

【0027】(c)各電磁接触器が非投入状態にあると
きにロックレバーの鎖錠部材が各応動部材の実質的に中
心に位置するようにする位置決め手段を備えているもの
にあっては、鎖錠部材は電磁接触器の取り付け方向等に
影響を受けることなく、非投入時には常時中央に位置し
ているので誤作動が防止できる。
(C) When the electromagnetic contactor is in a non-closed state, the lock member of the lock lever is provided with positioning means for substantially centering each of the responsive members. Since the lock member is always located at the center when the electromagnetic contactor is not inserted and is not affected by the mounting direction of the electromagnetic contactor, malfunction can be prevented.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明に係る相互鎖錠装置の実施の形態を示す
断面図。
FIG. 1 is a sectional view showing an embodiment of a mutual locking device according to the present invention.

【図2】相互鎖錠装置の図1におけるa−a部分に対応
した断面図。
FIG. 2 is a cross-sectional view of the mutual locking device corresponding to aa portion in FIG.

【図3】図2において一方の応動部材が作動してロック
した状態を示す断面図。
FIG. 3 is a cross-sectional view showing a state in which one of the responsive members is actuated and locked in FIG. 2;

【図4】相互鎖錠装置の図1におけるb−b部分に対応
した断面図。
FIG. 4 is a cross-sectional view of the mutual locking device corresponding to a portion bb in FIG. 1;

【図5】図4において一方の応動部材が作動してロック
した状態を示す断面図。
FIG. 5 is a cross-sectional view showing a state in which one of the response members is actuated and locked in FIG. 4;

【図6】ケース部材のロックレバー軸支部分の要部縦断
面図。
FIG. 6 is a longitudinal sectional view of a main part of a lock lever shaft support portion of a case member.

【図7】相互鎖錠装置の使用状態を示す説明図。FIG. 7 is an explanatory diagram showing a use state of the mutual locking device.

【図8】相互鎖錠装置と電磁接触器を組み合わせた状態
の回路図。
FIG. 8 is a circuit diagram showing a state where the mutual locking device and the electromagnetic contactor are combined.

【符号の説明】[Explanation of symbols]

U 相互鎖錠装置 1 ケース 1a、1b ケース部材 10 軸受部 11 案内部 12 案内孔 18 案内部材 13、14 接触子収容部 15 突起 16、17 端子収容部 2 回路断続部 20a、20b 可動側端子 21 端子ネジ 22 圧着板 23a、23b 可動接触子 d 隙間 24 荷重調整部 25 接点 26a、26b 固定側端子 260 固定接触子 261 接点 27 端子ネジ 28 圧着板 3 ロックレバー 30 レバー 31 軸ピン 32 鎖錠ピン 4a、4b 応動部材 40 操作レバー 41 横溝 410 押出部 42 縦溝 U Mutual locking device 1 Case 1a, 1b Case member 10 Bearing part 11 Guide part 12 Guide hole 18 Guide member 13, 14 Contact receiving part 15 Projection 16, 17 Terminal receiving part 2 Circuit interrupting part 20a, 20b Movable terminal 21 Terminal screw 22 Crimping plate 23a, 23b Movable contact d Gap 24 Load adjuster 25 Contact 26a, 26b Fixed terminal 260 Fixed contact 261 Contact 27 Terminal screw 28 Crimping plate 3 Lock lever 30 Lever 31 Shaft pin 32 Lock pin 4a , 4b Response member 40 Operating lever 41 Horizontal groove 410 Extruded part 42 Vertical groove

───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平9−330640(JP,A) 実開 昭50−139258(JP,U) 実開 昭54−161962(JP,U) 実開 昭63−102151(JP,U) 実開 昭60−15718(JP,U) 実開 昭61−129252(JP,U) 実開 平3−32329(JP,U) 実開 昭59−101347(JP,U) 実公 昭43−6566(JP,Y1) 実公 昭49−25531(JP,Y1) (58)調査した分野(Int.Cl.7,DB名) H01H 50/00 H01H 51/20 H01H 9/26 H01H 9/24 H01H 31/10 H01H 33/52 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-9-330640 (JP, A) Japanese Utility Model Showa 50-139258 (JP, U) Japanese Utility Model Showa 54-161962 (JP, U) Japanese Utility Model Showa 63- 102151 (JP, U) Japanese Utility Model Showa 60-15718 (JP, U) Japanese Utility Model Showa 61-129252 (JP, U) Japanese Utility Model Utility Model 3-32329 (JP, U) Japanese Utility Model Showa 59-101347 (JP, U) Jikken 43-6566 (JP, Y1) Jikken 49-25531 (JP, Y1) (58) Fields investigated (Int. Cl. 7 , DB name) H01H 50/00 H01H 51/20 H01H 9/26 H01H 9/24 H01H 31/10 H01H 33/52

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 隣合う電磁接触器間に設置され、各電磁
接触器が同時に投入されることを防止する電磁接触器の
相互鎖錠装置であって、この装置は、 軸を中心として回動し、鎖錠部材を有するロックレバー
(3) と、 電磁接触器の投入及び解除により作動し、一方が作動状
態にあるときには上記鎖錠部材をロック位置に位置さ
せ、その作用により他方は作動が阻止されるようにして
ある一対の応動部材(4a)(4b)と、 固定接触子(260) と、当該固定接触子(260) 側に付勢さ
れ常態においては上記固定接触子(260) と接触している
弾性を有する可動接触子(23a)(23b)を有し、上記各電磁
接触器に係る回路内にある回路断続部(2) と、 を備えており、上記ロックレバー(3)と一対の応動部材(4a)(4b)は、そ
れぞれ独立しており、 上記ロックレバー(3)は軸を中心に揺動し、上記一対の
応動部材(4a)(4b)は、ロックレバー(3)に添った動きを
し、 一方の電磁接触器の投入時には、上記鎖錠部材により非
投入側の電磁接触器に対応する上記回路断続部(2) の上
記可動接触子(23a)(23b)をその付勢力に抗し上記固定接
触子(260) から離隔し断路すると共に、その付勢力によ
って上記鎖錠部材をロック位置に固定するようにしたこ
とを特徴とする、 電磁接触器の相互鎖錠装置。
An interlocking device for an electromagnetic contactor, which is installed between adjacent electromagnetic contactors and prevents each electromagnetic contactor from being closed at the same time, wherein the device rotates about an axis. Lock lever having a locking member
And (3) operating by turning on and off the electromagnetic contactor. When one of them is in the operating state, the lock member is located at the lock position, and by the action, the other is prevented from operating. The movable members (4a) and (4b), the fixed contact (260), and the elastic movable contact which is urged toward the fixed contact (260) and normally comes into contact with the fixed contact (260). And a circuit interrupter (2) in a circuit associated with each of the electromagnetic contactors, the lock lever (3) and a pair of responsive members (4a) ( 4b)
Respectively are independent, the locking lever (3) is swung about the shaft, the pair
The response members (4a) and (4b) move along the lock lever (3).
And, when one of the electromagnetic contactor is turned, anti the circuit interrupter portion corresponding to the electromagnetic contactor of the non-charged side by the locking member above the movable contact of (2) (23a) and (23b) to the biasing force A mutual locking device for an electromagnetic contactor, characterized in that the locking member is fixed to a locked position by the biasing force while being separated from and disconnected from the fixed contact (260).
【請求項2】 各電磁接触器が非投入状態にあるときに
上記ロックレバー(3) の上記鎖錠部材が上記各応動部材
(4a)(4b)の実質的に中心に位置するようにする位置決め
手段を備えていることを特徴とする、 請求項1記載の電磁接触器の相互鎖錠装置。
2. The lock member of the lock lever (3), when each of the electromagnetic contactors is in a non-closed state, the lock member (3) is in contact with each of the responsive members.
2. The mutual locking device for an electromagnetic contactor according to claim 1, further comprising a positioning means for being located substantially at the center of (4a) and (4b).
JP8231520A 1996-08-12 1996-08-12 Mutual locking device for electromagnetic contactor Expired - Fee Related JP3018999B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8231520A JP3018999B2 (en) 1996-08-12 1996-08-12 Mutual locking device for electromagnetic contactor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8231520A JP3018999B2 (en) 1996-08-12 1996-08-12 Mutual locking device for electromagnetic contactor

Publications (2)

Publication Number Publication Date
JPH1064392A JPH1064392A (en) 1998-03-06
JP3018999B2 true JP3018999B2 (en) 2000-03-13

Family

ID=16924780

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8231520A Expired - Fee Related JP3018999B2 (en) 1996-08-12 1996-08-12 Mutual locking device for electromagnetic contactor

Country Status (1)

Country Link
JP (1) JP3018999B2 (en)

Also Published As

Publication number Publication date
JPH1064392A (en) 1998-03-06

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