JP2543053Y2 - Switch movable contact assembly structure - Google Patents

Description

【考案の詳細な説明】 （産業上の利用分野） 本考案はスイッチの可動接点組付構造に関するもので
ある。DETAILED DESCRIPTION OF THE INVENTION (Industrial application field) The present invention relates to a structure for assembling a movable contact of a switch.

（従来の技術） 従来、オン，オフ型プッシュスイッチは、第５図に示
すように、ターミナルベース１を有する箱状のケース２
と、該ケース２内に一端が突入され、他端にノブ３を有
するスライダ4aとからなっている。ケース２のターミナ
ルベース１には、一対の固定接点５が固着され、リード
線６が接続されている。スライダ4aには短形断面のくび
れ部７が形成され、このくびれ部７に、可動接点８を有
するＵ字形の可動接点部材9aがコイルばね10により前記
ターミナルベース１の固定接点５に圧接する方向に付さ
れて取り付けられている。また、スライダ4aはコイルば
ね11によりケース２から突出する方向に付勢されるとと
もに、ねじりばね12の先端のハートカムピン13がケース
２の内面に形成した図示しないハートカム溝に係合する
ことにより、押し込み位置で保持されるようになってい
る。(Prior Art) Conventionally, an on / off type push switch is a box-shaped case 2 having a terminal base 1 as shown in FIG.
And a slider 4a having one end protruding into the case 2 and having a knob 3 at the other end. A pair of fixed contacts 5 is fixed to the terminal base 1 of the case 2, and a lead wire 6 is connected thereto. The slider 4a is formed with a constricted portion 7 having a short section. A direction in which a U-shaped movable contact member 9a having a movable contact 8 is pressed against the fixed contact 5 of the terminal base 1 by a coil spring 10 in the constricted portion 7. It is attached to and attached to. The slider 4a is urged by the coil spring 11 in a direction protruding from the case 2, and the heart cam pin 13 at the tip of the torsion spring 12 is engaged with a heart cam groove (not shown) formed on the inner surface of the case 2, It is designed to be held in the pushed position.

かかるプッシュスイッチの可動接点部材9aには、第６
図に示すように、両側部14に縦長の係合穴15が設けられ
ている。また、スライダ４の側面には係合凸部16aが突
設され、底面にはコイルばね収容凹部17が形成されてい
る。The movable contact member 9a of the push switch has a sixth
As shown in the drawing, vertically long engagement holes 15 are provided in both side portions 14. An engagement projection 16a protrudes from the side surface of the slider 4, and a coil spring housing recess 17 is formed on the bottom surface.

そして、コイルばね収容凹部17にコイルばね10を収容
した後、可動接点部材9aをスライダ４に嵌め込んでゆけ
ば、その両側部14が撓んで、スライダ４の係合凸部16a
が係合穴15に嵌入することにより、可動接点部材9aは上
下方向に移動可能に取り付けられる。Then, after the coil spring 10 is accommodated in the coil spring accommodating recess 17, the movable contact member 9 a is fitted into the slider 4.
Is fitted into the engagement hole 15, so that the movable contact member 9a is attached movably in the vertical direction.

（考案が解決しようとする課題） しかしながら、可動接点部材9aは銅等の薄板材料から
なり、僅かな撓みで塑性変形するので、十分な撓み代を
とることができない。このため、係合突部16aを大きく
することができず、外れやすくなっていた。また、可動
接点部材9aの両側部14の先端にバリがあると、差し込み
時に引っ掛かって両側部14が変形することがあった。こ
のような場合、その変形を修正すると、スライダ4aと両
側部14との隙間が狭くなり、摺動抵抗が大きくなってコ
イルばね10による圧接が効かなくなり、導通不良が発生
することがあった。(Problem to be Solved by the Invention) However, since the movable contact member 9a is made of a thin plate material such as copper and is plastically deformed by a slight bending, a sufficient allowance for the bending cannot be obtained. For this reason, the engaging projection 16a could not be enlarged, and it was easy to come off. In addition, if there is a burr at the tip of both sides 14 of the movable contact member 9a, the two sides 14 may be deformed by being caught at the time of insertion. In such a case, if the deformation is corrected, the gap between the slider 4a and the both side portions 14 becomes narrow, the sliding resistance becomes large, the press-contact by the coil spring 10 becomes ineffective, and conduction failure may occur.

本考案はかかる問題点に鑑みてなされたもので、撓み
代が十分にとれ、確実に取り付けることができるととも
に、バリ等があっても支障なく取り付けることができる
スイッチの可動接点組付構造を提供することを目的とす
る。The present invention has been made in view of such a problem, and provides a movable contact assembling structure of a switch that can be securely mounted with a sufficient bending allowance and can be mounted without trouble even if there is a burr or the like. The purpose is to do.

（課題を解決するための手段） 前記目的を達成するため、本考案は、ノブの押圧操作
によりターミナルベース上を摺動するスライダに、ター
ミナルベースの固定接点と圧接し、かつ、接離可能な可
動接点を有するＵ字形の可動接点部材を組み付けたスイ
ッチにおいて、 スライダの側壁に係合凸部を有する弾性腕部を形成す
る一方、可動接点部材の両側部にスライダの係合凸部が
係合する係合穴を形成するとともに、当該係合穴の上方
に係合凸部をガイドするテーパ部を形成したものであ
る。(Means for Solving the Problems) In order to achieve the above object, the present invention provides a slider that slides on a terminal base by pressing a knob and presses and contacts a fixed contact of the terminal base. In a switch in which a U-shaped movable contact member having a movable contact is assembled, an elastic arm portion having an engagement projection is formed on a side wall of the slider, and an engagement projection of the slider is engaged with both sides of the movable contact member. And a tapered portion that guides the engaging projection above the engaging hole.

（実施例） 次に、本考案の一実施例を図面に従って説明する。Next, an embodiment of the present invention will be described with reference to the drawings.

第１図は、本考案に係る構造を備えたスイッチを示
し、スライダ４に弾性腕部18、可動接点部材９にテーパ
部19を設けた以外は第５図に示すスイッチと同一であ
り、対応する部分には同一符号を付して説明を省略す
る。FIG. 1 shows a switch having a structure according to the present invention, which is the same as the switch shown in FIG. 5 except that an elastic arm 18 is provided on the slider 4 and a tapered portion 19 is provided on the movable contact member 9. The same reference numerals are given to the same parts and the description is omitted.

スライダ４の弾性腕部18は、第２図に示すように、く
びれ部７の側面に突設され、先端外方に係合凸部16を有
している。可動接点部材９のテーパ部19は、その両側部
14の上端を外方に開くように折曲して形成されている。As shown in FIG. 2, the elastic arm 18 of the slider 4 protrudes from the side surface of the constricted portion 7 and has an engaging projection 16 on the outer side of the tip. The tapered portion 19 of the movable contact member 9 is formed on both sides thereof.
It is formed by bending the upper end of 14 to open outward.

この可動接点部材９をスライダ４に取り付けるには、
第３図に示すように、スライダ４のコイルばね収容凹部
17にコイルばね10を収容し、可動接点部材９の両側部14
をスライダ４のくびれ部７に差し込む。このとき、可動
接点部材９のテーパ部19は外方に向いているので、係合
凸部16をガイドすることになり、簡単に差し込むことが
できる。また、テーパ部19の先端にバリがあったとして
も、係合凸部16に引っ掛かることはなく、スムーズに取
り付けることができる。To attach the movable contact member 9 to the slider 4,
As shown in FIG. 3, the coil spring receiving recess of the slider 4
The coil spring 10 is accommodated in the movable contact member 17 and both sides 14
Into the neck 7 of the slider 4. At this time, since the tapered portion 19 of the movable contact member 9 faces outward, it guides the engaging convex portion 16 and can be easily inserted. Further, even if there is a burr at the tip of the tapered portion 19, it can be smoothly attached without being caught by the engaging convex portion 16.

可動接点部材９を差し込むにつれて、第４図に示すよ
うに、スライダ４の弾性腕部18と可動接点部材９の両側
部14とが互いに押し合って、弾性腕部18は内方に、両側
部14は外方にそれぞれ撓む。従って、弾性係合部18が内
方に撓む分だけ可動接点部材９は撓み代が小さくなるの
で、係合凸部16が大きくても塑性変形することはない。As the movable contact member 9 is inserted, as shown in FIG. 4, the elastic arm portion 18 of the slider 4 and the side portions 14 of the movable contact member 9 press against each other, and the elastic arm portion 18 moves inward and 14 bend outward respectively. Therefore, the movable contact member 9 has a smaller allowance for bending as much as the elastic engaging portion 18 is bent inward, so that even if the engaging convex portion 16 is large, it is not plastically deformed.

そして、弾性腕部18の係合凸部16が可動接点部材９の
係合穴15に嵌入すると、弾性腕部18及び可動接点部材９
の両側部14がそれらの弾性力により復帰するため、第２
図に示すように、係合凸部16が係合穴15の縁に係合して
確実に取り付けられる。When the engaging projection 16 of the elastic arm 18 is fitted into the engaging hole 15 of the movable contact member 9, the elastic arm 18 and the movable contact
The two side portions 14 of the
As shown in the figure, the engaging projection 16 engages with the edge of the engaging hole 15 and is securely attached.

（考案の効果） 以上の説明から明らかなように、本考案によれば、可
動接点部材をスライダに差し込む際に可動接点部材の両
側部だけでなく、スライダの弾性腕部も撓む。このた
め、スライダの係合凸部が大きくても、可動接点部材の
撓み代が少なく、塑性変形することがないので、確実に
取り付けることができる。(Effects of the Invention) As is apparent from the above description, according to the present invention, not only both sides of the movable contact member but also the elastic arm of the slider bends when the movable contact member is inserted into the slider. For this reason, even if the engagement protrusion of the slider is large, the movable margin of the movable contact member is small, and there is no plastic deformation, so that the slider can be securely attached.

また、可動接点部材のテーパ部により取り付けが簡単
になるうえ、バリがあったとしても、引っ掛かりがなく
スムーズに取り付けることができる等の効果を有してい
る。In addition, the tapered portion of the movable contact member simplifies installation, and even if there is a burr, the movable contact member can be smoothly mounted without being caught.

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

第１図は本考案に係る構造を備えたプッシュスイッチの
一部断面図、第２図は第１図のＩ−Ｉ線断面図、第３
図，第４図は可動接点部材の組付前，組付後の状態を示
す断面図、第５図は従来の構造を備えたプッシュスイッ
チの断面図、第６図は第５図のII−II線断面図である。 １…ターミナルベース、３…ノブ、４…スライダ、５…
固定接点、８…可動接点、９…可動接点部材、14…両側
部、15…係合穴、16…係合凸部、18…弾性腕部、19…テ
ーパ部。FIG. 1 is a partial sectional view of a push switch having the structure according to the present invention, FIG. 2 is a sectional view taken along line II of FIG.
FIGS. 4 and 5 are cross-sectional views showing a state before and after assembling the movable contact member, FIG. 5 is a cross-sectional view of a push switch having a conventional structure, and FIG. FIG. 2 is a sectional view taken along line II. 1: Terminal base, 3: Knob, 4: Slider, 5 ...
Fixed contact, 8: movable contact, 9: movable contact member, 14: both sides, 15: engagement hole, 16: engagement projection, 18: elastic arm, 19: taper.

Claims (1)

(57)【実用新案登録請求の範囲】(57) [Scope of request for utility model registration] 【請求項１】ノブの押圧操作によりターミナルベース上
を摺動するスライダに、ターミナルベースの固定接点と
圧接し、かつ、接離可能な可動接点を有するＵ字形の可
動接点部材を組み付けたスイッチにおいて、 スライダの側壁に係合凸部を有する弾性腕部を形成する
一方、可動接点部材の両側部にスライダの係合凸部が係
合する係合穴を形成するとともに、当該係合穴の上方に
係合凸部をガイドするテーパ部を形成したことを特徴と
するスイッチの可動接点組付構造。1. A switch in which a U-shaped movable contact member having a movable contact which is in press contact with a fixed contact of a terminal base and which can be brought into and out of contact with a slider which slides on the terminal base by a pressing operation of a knob is provided. An elastic arm having an engaging projection is formed on a side wall of the slider, and an engaging hole for engaging the engaging projection of the slider is formed on both sides of the movable contact member. A movable contact assembling structure for a switch, wherein a tapered portion for guiding an engaging projection is formed on the switch.