JPS5942722A - Both-side cut-off type contact switching device - Google Patents

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【発明の詳細な説明】 （利用分野） 本発明は両［１１１にそれぞれ接点を１Ｉｉｔ／えた可
動接点板を可動台の水平移行によって離合させると共に
、而もコイルバネにて接点用を付与する両切型接点開閉
装置に関する・ （従来技術の問題点） この柚接点開閉装囮はその接点圧をコイルバネにて付与
している。Detailed Description of the Invention (Field of Application) The present invention has two movable contact plates each having 111 contacts each, which are separated by horizontal movement of the movable base, and a double contact plate which is provided with contact points using coil springs. Concerning type contact switching device (problems with conventional technology) This yuzu contact switching device applies contact pressure using a coil spring.

ところで、このコイルバネが接点圧として作用する最も
理想的な状態は、先ず可＃ｌ接点が固定接点に接合した
瞬時から、大きな荷車として作用し、接点圧を＾めるこ
とにある。By the way, the most ideal state in which this coil spring acts as a contact pressure is that from the moment the #l contact is connected to the fixed contact, it acts as a large cart and reduces the contact pressure.

又、その小さな荷重から大きな荷重への変化はバネの撓
み針（縮まる距離）が小さいほどよい。Also, the change from a small load to a large load is better as the deflection needle (the distance that the spring is shortened) is smaller.

なぜならは可動台の移動距離を極力短くして小型化が実
現できることによる。This is because the moving distance of the movable base can be shortened as much as possible to achieve miniaturization.

従ってバネの撓み量を小さく１−で接点圧、即ち大きな
補出を得るにはバネ定数を大きくすれはよい。例えば線
径を太くしてバネを強くする等が考えられる。Therefore, in order to obtain contact pressure, that is, large compensation, with a small amount of deflection of the spring (1-), it is better to increase the spring constant. For example, it is possible to increase the wire diameter and make the spring stronger.

ところで、撓み量が小さいと、それだけ余裕がなくなり
、′０Ｊ動台、バネ等の製作上ρバラツキから窓孔から
脱落することがあった。By the way, if the amount of deflection is small, there will be less margin, and due to variations in ρ in the manufacturing of the '0J moving base, springs, etc., it may fall out of the window hole.

（目　朗り 本発明は上記の点にトみてなしたものであって、即ち、
コイルバネは撓み量の大きなものを用い、接点接合後あ
る時点からバネ荷重を大きくし、もって組立はその撓み
柘、の大なることによる余裕で可動台、バネ等の装作上
のバラツキによっても脱落せず、且つバネイｄ工由が大
きくなることによって大きな接点圧か得られることを目
的とする。(The present invention has been made in view of the above points, namely,
A coil spring with a large amount of deflection is used, and the spring load is increased from a certain point after the contacts are connected, so that the assembly has a margin due to the large amount of deflection, so that it will not fall off due to variations in the mounting of the movable base, springs, etc. The purpose is to obtain a large contact pressure by increasing the size of the spring d.

（実施例） 以下本発明を実施例の図面に基すいて説明すると、１は
可１ｌＬｌ）接点板で、両端に各々可ｄ（ＩＩ接点２を
有している。６はこの各々の可動接点２と離合する固定
接点４を有する固定接点板、５は＝ｊ動接接点板１差し
込れる両側貫通の窓孔６を有する絶縁物製の水平移行型
の−ｔｉＪ動台、７は窓孔６に収納されるコイルバネで
、一端をＴｊＪ動接動板点板１他端を窓孔６の一方側壁
６ａに弾圧している。８はコイルバネ７の中程の条７ａ
と条７ａとの間に介在した中間片であって、第１図及び
第２図の実施例に於ては可動接点板１から突出しており
、第６図は可動台５から突出している。(Example) The present invention will be described below based on the drawings of the embodiment. 1 is a contact plate having movable contacts 2 at both ends. 6 is a movable contact of each of the contact plates. 2 is a fixed contact plate having a fixed contact 4 separated from it, 5 is a horizontal transition type -tiJ moving base made of an insulator having a window hole 6 penetrating both sides into which the moving contact plate 1 is inserted, and 7 is a window hole. A coil spring housed in 6 has one end pressed against the TjJ movable contact plate point plate 1 and the other end pressed against one side wall 6a of the window hole 6. 8 is a coil spring 7 in the middle of the strip 7a.
1 and 2, it protrudes from the movable contact plate 1 in the embodiment shown in FIGS. 1 and 2, and it protrudes from the movable base 5 in FIG.

（動　作） 次に本発明両切型接点開閉装置の動作を説明すると、第
２図（イ）はｉｊＪｊ台５が矢印の左方向、に移行して
−ｉＪ動接点２か接合した瞬時であって、この時コイル
バネ７は全長Ｔに旦って可動接点板１を弾圧している。(Operation) Next, to explain the operation of the double-break type contact switching device of the present invention, FIG. At this time, the coil spring 7 is pressing against the movable contact plate 1 over the entire length T.

続いて、同図（２））の如く更に可動台５が進行すると
コイルバネ７の中程の条７ａが中間片８に当たり、バネ
７が可動接点板１に作用する有効長はその中間片８に当
った長さｔとなり、ビ）に比し短い。従ってバネ荷車は
大きくなる。Subsequently, as the movable base 5 moves further as shown in FIG. The length of the hit is t, which is shorter than B). Therefore, the spring cart becomes larger.

第４図の特性図がそれを表わし、縦軸をバネ荷動ｐとし
・横軸を撓みｈ１δとすれは、中間片８に当った点を分
岐点として急激に立上っている。The characteristic diagram in FIG. 4 shows this, and the vertical axis is the spring load p, and the horizontal axis is the deflection h1δ, which rises rapidly with the point where it hits the intermediate piece 8 as a branching point.

（効果） 本発明は上記の如く、コイルバネ７の中程の条　　□７
ａ間に中間片８を介在させたから、接点接合後のある時
点から中間片８にてバネ７の有効長を接点接合のシ：？
時から短くし、従ってバネ荷車を大きくすることが出来
ると共に、而もその接合後のある時点まではバネ有効長
を長くとれ、撓み量が大きく余裕があり、バネ７か用ｄ
ｕ１台５から脱落することもない効果かある。(Effect) As described above, the present invention provides the middle section of the coil spring 7.
Since the intermediate piece 8 is interposed between a, the effective length of the spring 7 is changed by the intermediate piece 8 from a certain point after the contact is joined.
It is possible to shorten the spring cart from time to time, thereby increasing the size of the spring cart, and the effective length of the spring can be made long until a certain point after the connection, and the amount of deflection is large and there is a margin, and the spring 7 or d
It also has the effect of not falling off from u1 unit 5.

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

図面は本発明の一実施例を示し、第１図は正面図、第２
図はＩＮ閉動作図、第６図は異なる実施例何区、第４図
はバネ特性図である。 １：Ｔ３」動接点板、２：可動接点、６：固定接点板・
４：固定接点、５：ｂ」動台、６：窓孔、７：バネ、８
：中間片 特許出願人 松下市、工株式会社 代理人弁理士　竹　光　敏　丸 （ばか２名） 第３図 第４図 −、Ｇ　（たわみ堡）The drawings show one embodiment of the present invention, with the first figure being a front view and the second figure being a front view.
The figure shows an IN closing operation diagram, FIG. 6 shows different sections of different embodiments, and FIG. 4 shows a spring characteristic diagram. 1: T3” moving contact plate, 2: moving contact, 6: fixed contact plate・
4: Fixed contact, 5: b" moving base, 6: Window hole, 7: Spring, 8
: Intermediate piece patent applicant Matsushita City, Ko Co., Ltd. agent patent attorney Toshimaru Takemitsu (2 idiots) Figure 3 Figure 4-, G (Deflection fort)

Claims (1)

【特許請求の範囲】[Claims] 両端にｏＪ動接点を有した可動接点板と、この各々の可
動接点に対峙した固定接点を有した固定接点板と、この
可動接点板が差し込まれる両切ｊ貫通の窓孔を有した絶
縁物製の水平移行型の可動台と、ｎ１１記窓孔に収納さ
れ、且つ一端をＨＩＴｍＪ接点板に、他端を窓孔の一方
側壁に弾圧したコイルバネと、このコイルバネの中程の
条と条との間に介在した中間片とでなしたことを特徴と
しだ両切型接点開閉装置。A movable contact plate having OJ moving contacts at both ends, a fixed contact plate having fixed contacts facing each of the movable contacts, and an insulator having a window hole extending through both ends into which the movable contact plate is inserted. A horizontally moving type movable platform manufactured by J.D. Co., Ltd., a coil spring housed in the window hole n11 and having one end pressed against the HITmJ contact plate and the other end pressed against one side wall of the window hole, and a strip in the middle of this coil spring. A double-cut type contact switching device characterized by being made with an intermediate piece interposed between the two.