JPH1069836A - Push-on switch - Google Patents
Push-on switchInfo
- Publication number
- JPH1069836A JPH1069836A JP22345697A JP22345697A JPH1069836A JP H1069836 A JPH1069836 A JP H1069836A JP 22345697 A JP22345697 A JP 22345697A JP 22345697 A JP22345697 A JP 22345697A JP H1069836 A JPH1069836 A JP H1069836A
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- dish
- contact
- metal plate
- cover member
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2227/00—Dimensions; Characteristics
- H01H2227/026—Separate dome contact
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H2227/00—Dimensions; Characteristics
- H01H2227/026—Separate dome contact
- H01H2227/0261—Separate dome contact with an aperture in contact making centre of dome
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、プッシュオン式ス
イッチに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a push-on type switch.
【０００２】[0002]
【従来の技術】従来図４に示すように、基板１上に固定
接点２，２を形成し、基板１上に固定接点２の上部に所
定の間隔をあけて可動接点３を保持する弾性を有する材
料からなるドーム部４ａを備えたカバー部材４を固定し
てなるプッシュオン式スイッチが提案されている。この
スイッチでは、ドーム部４ａの上から押圧力が与えられ
ると、ドーム部４ａが変形して可動接点３が固定接点
２，２に接触し固定接点間の電気的導通が行われる。そ
してドーム部４ａに付与した押圧力が解除されると、ド
ーム部４ａは自らの弾性力で元の状態に復帰して固定接
点２，２間の電気的導通が遮断される。2. Description of the Related Art Conventionally, as shown in FIG. 4, fixed contacts 2 and 2 are formed on a substrate 1 and elasticity for holding a movable contact 3 at a predetermined interval above the fixed contacts 2 on the substrate 1 is provided. There has been proposed a push-on switch in which a cover member 4 having a dome portion 4a made of a material having the same is fixed. In this switch, when a pressing force is applied from above the dome portion 4a, the dome portion 4a is deformed, and the movable contact 3 comes into contact with the fixed contacts 2 and 2, and electrical conduction between the fixed contacts is performed. When the pressing force applied to the dome portion 4a is released, the dome portion 4a returns to its original state by its own elastic force, and the electrical conduction between the fixed contacts 2 is interrupted.
【０００３】[0003]
【発明が解決しようとする課題】従来の、プッシュオン
式スイッチにおいては、単に可動接点３と固定接点２，
２とが面接触するだけであるため、クリック感が殆ど無
いという問題があった。そのため従来のスイッチでは、
クリック感が無いために、操作者が繰り返してスイッチ
操作を行ってしまうという問題があった。In a conventional push-on type switch, a movable contact 3 and a fixed contact 2 are simply used.
However, there is a problem that there is almost no click feeling because the surface 2 only makes surface contact. Therefore, in a conventional switch,
There is a problem that the operator repeatedly performs the switch operation because there is no clicking feeling.
【０００４】本発明の目的は、簡単な構成で明確なクリ
ック感を得ることができるプッシュオン式スイッチを提
供することにある。[0004] It is an object of the present invention to provide a push-on switch capable of obtaining a clear click feeling with a simple configuration.
【０００５】[0005]
【課題を解決するための手段】本発明においては、上記
従来の問題点を解決するために、中央部接点２０ａ及び
端部接点２０ｂを絶縁性基板１０上に形成し、外周縁の
一部が端部接点と当接しかつ基板から離れる方向に向か
って突出するように湾曲した反転動作可能な皿状部３０
ａを有するタクト金属板３０を基板１０上に配置した。
そしてタクト金属板３０の表面と接触して該表面を覆う
ように絶縁カバー部材４０を基板１０に固定する。本発
明では、特に絶縁カバー部材として可撓性を有するポリ
エステル等の合成樹脂からなる絶縁カバー部材を用い
る。In the present invention, in order to solve the above-mentioned conventional problems, a center contact 20a and an end contact 20b are formed on an insulating substrate 10, and a part of an outer peripheral edge is formed. An inverting dish-shaped portion 30 which is curved so as to abut on the end contact and protrude away from the substrate.
The tact metal plate 30 having “a” was placed on the substrate 10.
Then, the insulating cover member 40 is fixed to the substrate 10 so as to come into contact with and cover the surface of the tact metal plate 30. In the present invention, an insulating cover member made of a synthetic resin such as flexible polyester is used as the insulating cover member.
【０００６】本発明においては、反転動作可能な皿状部
を有するタクト金属板を用いて端部接点と中央部接点と
を電気的に導通させるので、明確なクリック感を得るこ
とができる。また本発明によれば、絶縁カバー部材を基
板に固定することにより、タクト金属板の位置決めと移
動を阻止するため、タクト金属板の位置決めと移動の阻
止のために位置決め部材を別に用いる必要がなく、部品
点数を少なくすることができる。特に本発明のように、
可撓性を有するポリエステル等の合成樹脂からなる絶縁
カバー部材を用いると、ゴム製の絶縁カバー部材を用い
た場合よりも、操作者の指に伝わるクリック感が良好に
なる上、絶縁カバー部材の薄形化を図ることができて、
結果としてプッシュオン式スイッチの薄形化を図ること
ができる。In the present invention, since the end contact and the center contact are electrically connected by using a tact metal plate having a dish-shaped portion capable of reversing operation, a clear click feeling can be obtained. According to the present invention, since the insulating cover member is fixed to the substrate to prevent the positioning and movement of the tact metal plate, it is not necessary to use a separate positioning member for positioning and preventing the movement of the tact metal plate. Thus, the number of parts can be reduced. In particular, as in the present invention,
When an insulating cover member made of a synthetic resin such as polyester having flexibility is used, the click feeling transmitted to the operator's finger becomes better than when a rubber insulating cover member is used. It can be made thinner,
As a result, the thickness of the push-on type switch can be reduced.
【０００７】[0007]
【発明の実施の形態】以下図面を参照して、本発明の実
施例を詳細に説明する。Embodiments of the present invention will be described below in detail with reference to the drawings.
【０００８】図１は本発明をメンブレンスイッチに適用
した場合の実施例の断面図を示している。同図におい
て、１０は絶縁性を有する基板であり、用途に応じて可
撓性を有するフレキシブル基板も用いられる。基板１０
の上には、図２に示すように銅箔または銀塗料若しくは
カーボン等の導電性塗料を用いて中央部接点２０ａ，端
部接点２０ｂ，ジャンパー線２０ｃ等が形成されてい
る。導電性塗料としては、エポキシ樹脂系，フェノール
樹脂系，メラミン樹脂系，ポリイミド樹脂系の塗料に
銀，カーボン等の導電性粉末を含有させた樹脂系導電性
塗料を用いるのが好ましい。また中央部接点２０ａは、
基板１０を貫通して設けられたスルーホール導体２０ｅ
に電気的に接続されており、スルーホール導体２０ｅの
他端には電極２０ｆが形成されている。ジャンパー線２
０ｃの上にはエポキシ樹脂等の適宜の材料を用いてオー
バコート２０ｄが施されている。なお図面においては、
理解を容易にするために接点２０ａ及び２０ｂの厚みを
誇張して描いている。FIG. 1 is a sectional view of an embodiment in which the present invention is applied to a membrane switch. In FIG. 1, reference numeral 10 denotes a substrate having an insulating property, and a flexible substrate having flexibility may be used depending on the application. Substrate 10
As shown in FIG. 2, a central contact 20a, an end contact 20b, a jumper wire 20c, and the like are formed using a conductive paint such as copper foil, silver paint, or carbon. As the conductive paint, it is preferable to use an epoxy resin-based, phenolic resin-based, melamine resin-based, or polyimide resin-based paint containing a conductive powder such as silver or carbon. The central contact 20a is
Through-hole conductor 20e provided through substrate 10
The electrode 20f is formed at the other end of the through-hole conductor 20e. Jumper wire 2
An overcoat 20d is formed on 0c using an appropriate material such as an epoxy resin. In the drawings,
For easy understanding, the thickness of the contacts 20a and 20b is exaggerated.
【０００９】図１及び図３において、３０は基板１０か
ら離れる方向に向かって突出するように湾曲した反転動
作可能な皿状部３０ａと、この皿状部３０ａの外周縁に
連続して形成されたフランジ部３０ｂとからなるタクト
金属板である。タクト金属板３０は、皿状部３０ａの外
周縁及びフランジ部３０ｂが端部接点２０ｂと常時接触
するようにして基板１０上に載置されている。なお位置
決めを容易にするためにフランジ部３０ｂの端部を端部
接点２０ｂに半田付けすることもできるが、この場合に
は皿状部３０ａの変形を害しない程度に半田付けを行
う。In FIG. 1 and FIG. 3, reference numeral 30 denotes a dish-shaped portion 30a which is curved so as to protrude in a direction away from the substrate 10 and which can be inverted, and is formed continuously on the outer peripheral edge of the dish-shaped portion 30a. It is a tact metal plate comprising a flange 30b. The tact metal plate 30 is placed on the substrate 10 such that the outer peripheral edge of the dish-shaped portion 30a and the flange portion 30b always contact the end contact 20b. The end of the flange portion 30b can be soldered to the end contact 20b to facilitate positioning, but in this case, the soldering is performed to such an extent that the deformation of the dish portion 30a is not hindered.
【００１０】皿状部３０ａの外周縁即ちフランジ部３０
ｂと皿状部３０ａとの接続部には、湾曲面または丸み３
０ｅが形成されている。また皿状部３０ａの中央部分に
は貫通孔３０ｃが形成されており、この貫通孔３０ｃの
内側周縁部にも湾曲面または丸み３０ｄが付けられてい
る。この貫通孔３０ｃの内側周縁部の丸み３０ｄは、例
えば貫通孔が形成されたタクト金属板３０を治具に固定
し、先端が尖ったポンチを貫通孔に挿入して突き上げて
絞り加工することにより形成される。更に皿状部３０ａ
のフランジ部３０ｂに近い位置には、周方向に延びる細
長い貫通孔３０ｆ及び３０ｇが形成されている。これら
の貫通孔３０ｆ及び３０ｇを形成する場合には、皿状部
３０ａを成形する前にタクト金属板の材料となる平板状
金属板の所定の位置に、あらかじめ貫通孔３０ｆ及び３
０ｇを打ち抜き加工により形成しておく。これらの貫通
孔３０ｃ，３０ｆ及び３０ｇは、皿状部３０ａが基板１
０に向かう方向の押圧力によって変形させられた際に皿
状部３０ａと基板１０との間に形成された空間内の空気
を該空間から逃がす機能を有している。The outer peripheral edge of the dish 30a, that is, the flange 30
b and the connecting portion between the dish portion 30a have a curved surface or roundness 3
0e is formed. Further, a through hole 30c is formed in the center of the dish-shaped portion 30a, and a curved surface or roundness 30d is also provided on the inner peripheral portion of the through hole 30c. The roundness 30d of the inner peripheral portion of the through hole 30c is obtained by, for example, fixing the tact metal plate 30 having the through hole formed therein to a jig, inserting a punch having a sharp end into the through hole, pushing up, and performing drawing. It is formed. Furthermore, the dish-shaped portion 30a
At the position near the flange portion 30b, elongated through holes 30f and 30g extending in the circumferential direction are formed. When forming these through-holes 30f and 30g, before forming the dish-shaped portion 30a, the through-holes 30f and 30g are previously placed at predetermined positions on a flat metal plate which is a material of the tact metal plate.
0 g is formed by punching. The through-holes 30c, 30f and 30g are formed by
When it is deformed by the pressing force in the direction toward zero, it has a function of releasing air in a space formed between the dish-shaped portion 30a and the substrate 10 from the space.
【００１１】４０は、絶縁性及び可撓性を有する、例え
ばポリエステル，ポリエチレンテレフタレート等からな
る合成樹脂製の絶縁カバー部材である。この絶縁カバー
部材４０はタクト金属板の表面と接触して該表面を覆う
ように少なくとも基板１０に接着剤を用いて固定されて
いる。フランジ部３０ｂ及び皿状部３０ａと絶縁カバー
部材４０とは接着されておらず、本実施例では皿状部３
０ａが変形していない状態において絶縁カバー部材４０
と皿状部３０ａとの間には一部にわずかな間隙または空
間ｇが形成されている。Reference numeral 40 denotes an insulating cover member made of synthetic resin made of, for example, polyester, polyethylene terephthalate, or the like, having insulating properties and flexibility. The insulating cover member 40 is fixed to at least the substrate 10 using an adhesive so as to come into contact with and cover the surface of the tact metal plate. The flange portion 30b and the dish-shaped portion 30a are not bonded to the insulating cover member 40, and in this embodiment, the dish-shaped portion 3
In the state in which the insulating cover member 40a is not deformed,
A slight gap or space g is formed in a part between the plate-shaped portion 30a.
【００１２】なお図１には、１つのスイッチのみを示し
ているが、基板１０の上には図１に示した構造のスイッ
チが複数個所定の間隔をあけて設けられている。本実施
例のスイッチは、絶縁カバー部材４０の上から直接指で
押圧することもできるが、必要に応じて、絶縁カバー部
材４０の上に、一点鎖線で示したように可撓性を有する
平板状の押圧部材５０を設けることもできる。Although only one switch is shown in FIG. 1, a plurality of switches having the structure shown in FIG. 1 are provided on the substrate 10 at predetermined intervals. The switch of this embodiment can be pressed directly with a finger from above the insulating cover member 40, but if necessary, a flexible flat plate as shown by a dashed line on the insulating cover member 40. It is also possible to provide a pressing member 50 in the shape of a circle.
【００１３】スイッチ動作を行う場合には、皿状部３０
ａの中央部分を絶縁カバー部材４０の上から指で押圧す
る。押圧力を加えてゆく段階で、皿状部３０ａと基板１
０との間に形成された空間内の空気が、主として貫通孔
３０ｆ及び３０ｇから間隙ｇ内に抜けていくため、皿状
部３０ａは容易に変形する。そして皿状部３０ａが変形
すると操作者の指先には明確なクリック感が伝わる。ま
た操作者が指を離すと、皿状部３０ａは反転動作を行っ
て図１に示した状態に復帰する。この際に、間隙ｇ内の
空気は貫通孔３０ｃ，３０ｆ及び３０ｇを通って皿状部
３０ａと基板１０との間に形成された空間内に戻るた
め、皿状部３０ａは迅速に元の状態に復帰する。When the switch operation is performed, the dish-shaped portion 30
The center part of a is pressed with a finger from above the insulating cover member 40. At the stage of applying the pressing force, the plate 30a and the substrate 1
Since the air in the space formed between 0 and 0 mainly passes through the through holes 30f and 30g into the gap g, the dish-shaped portion 30a is easily deformed. When the dish 30a is deformed, a clear click feeling is transmitted to the fingertip of the operator. When the operator releases his / her finger, the dish-shaped portion 30a performs a reversing operation and returns to the state shown in FIG. At this time, the air in the gap g passes through the through holes 30c, 30f and 30g and returns to the space formed between the dish 30a and the substrate 10, so that the dish 30a is quickly returned to its original state. Return to.
【００１４】また上記実施例においては、皿状部３０ａ
とフランジ部３０ｂとの間及び貫通孔３０ｃの内側周縁
部に丸み３０ｄ及び３０ｅを形成してあるので、押圧操
作が行われてタクト金属板３０が変形した場合でも、皿
状部３０ａの外周縁及び貫通孔３０ｃの周縁部によっ
て、端部接点２０ｂ及び中央部接点２０ａが削られて導
電不良が発生するのを防止することができる。In the above embodiment, the dish-shaped portion 30a
The rounded portions 30d and 30e are formed between the outer peripheral edge of the dish-shaped portion 30a even when the pressing operation is performed and the tact metal plate 30 is deformed. In addition, it is possible to prevent the end contact 20b and the center contact 20a from being scraped by the peripheral portion of the through hole 30c, thereby preventing the occurrence of poor conductivity.
【００１５】本実施例では、タクト金属板の皿状部に、
押圧力が付与されて該皿状部が変形したときに、皿状部
と基板との間に形成された空間内の空気を皿状部と絶縁
カバー部材との間に形成される空間内に逃がす貫通孔ま
たは切欠部を形成したので、皿状部と基板との間に形成
された空間内の空気が障害となること無く、大きな押圧
力を加えずにタクト金属板の皿状部をスムーズに変形さ
せることができる。In this embodiment, the dish-shaped part of the tact metal plate is
When the pressing force is applied to deform the dish, the air in the space formed between the dish and the substrate is moved into the space formed between the dish and the insulating cover member. A through hole or cutout is formed so that the air in the space formed between the dish and the board does not hinder the dish, and the dish-shaped part of the tact metal plate is smoothly applied without applying a large pressing force. Can be transformed into
【００１６】上記実施例においては、タクト金属板３０
としてフランジ部３０ｂを有するものを用いているが、
皿状部３０ａだけを有するタクト金属板を用いることも
できる。この場合には、皿状部の外周縁に適宜の形状の
切欠部を形成して皿状部と基板との間に形成された空間
内の空気抜きを行えばよい。また空気抜きのための貫通
孔または切欠部の位置は、タクト金属板の変形動作に支
障を与えない場所であればどこでもよく、上記実施例に
限定されるものではない。In the above embodiment, the tact metal plate 30
Is used having a flange portion 30b as
A tact metal plate having only the dish portion 30a may be used. In this case, a notch of an appropriate shape may be formed on the outer peripheral edge of the dish-shaped portion, and air may be vented from the space formed between the dish-shaped portion and the substrate. Further, the position of the through hole or the notch for venting air may be anywhere as long as it does not hinder the deformation operation of the tact metal plate, and is not limited to the above embodiment.
【００１７】[0017]
【発明の効果】本発明によれば、反転動作可能な皿状部
を有するタクト金属板を用いて端部接点と中央部接点と
を電気的に導通させるので、明確なクリック感を得るこ
とができる。特に本発明のように、可撓性を有するポリ
エステル等の合成樹脂からなる絶縁カバー部材を用いる
と、ゴム製の絶縁カバー部材を用いた場合よりも、操作
者の指に伝わるクリック感が良好になる上、絶縁カバー
部材の薄形化を図ることができて、結果としてプッシュ
オン式スイッチの薄形化を図ることができる。According to the present invention, since the end contact and the center contact are electrically connected by using a tact metal plate having a dish-shaped portion capable of reversing operation, a clear click feeling can be obtained. it can. In particular, when an insulating cover member made of a synthetic resin such as polyester having flexibility is used as in the present invention, the click feeling transmitted to the operator's finger is better than when a rubber insulating cover member is used. In addition, the thickness of the insulating cover member can be reduced, and as a result, the push-on switch can be reduced in thickness.
【図１】本発明の一実施例を示す断面図である。FIG. 1 is a sectional view showing an embodiment of the present invention.
【図２】図１の実施例で用いる基板の一態様を示す部分
斜視図である。FIG. 2 is a partial perspective view showing one embodiment of a substrate used in the embodiment of FIG.
【図３】図１の実施例で用いるタクト金属板の平面図で
ある。FIG. 3 is a plan view of a tact metal plate used in the embodiment of FIG.
【図４】図４は従来のスイッチの構成を示す断面図であ
る。FIG. 4 is a cross-sectional view showing a configuration of a conventional switch.
１０ 絶縁性基板 ２０ａ 中央部接点 ２０ｂ 端部接点 ３０ タクト金属板 ３０ａ 皿状部 ３０ｂ フランジ部 ３０ｃ，３０ｆ，３０ｇ 貫通孔 ４０ 絶縁カバー部材 DESCRIPTION OF SYMBOLS 10 Insulating board 20a Center contact 20b End contact 30 Tact metal plate 30a Dish 30b Flange 30c, 30f, 30g Through hole 40 Insulating cover member
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小原 陽三 富山県上新川郡大沢野町下大久保3158番地 北陸電気工業株式会社内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yozo Ohara 3158 Shimookubo, Osawano-cho, Kamishinkawa-gun, Toyama Prefecture Hokuriku Electric Industry Co., Ltd.
Claims (1)
縁性基板と、 外周縁の一部が前記端部接点と当接するように前記基板
上に配置されかつ該基板から離れる方向に向かって突出
するように湾曲した反転動作可能な皿状部を有するタク
ト金属板と、 前記タクト金属板の表面と接触して該表面を覆い前記絶
縁性基板に固定された可撓性を有するポリエステル等の
合成樹脂からなる絶縁カバー部材とを具備することを特
徴とするプッシュオン式スイッチ。An insulating substrate on which a center contact and an end contact are formed; and an insulating substrate disposed on the substrate so that a part of an outer peripheral edge is in contact with the end contact, and facing away from the substrate. A tact metal plate having a dish-shaped portion capable of reversing operation curved so as to protrude, and a flexible polyester or the like fixed to the insulative substrate by contacting the surface of the tact metal plate and covering the surface. And an insulating cover member made of a synthetic resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9223456A JP3046785B2 (en) | 1997-08-20 | 1997-08-20 | Push-on switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9223456A JP3046785B2 (en) | 1997-08-20 | 1997-08-20 | Push-on switch |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9255182A Division JP3046788B2 (en) | 1997-09-19 | 1997-09-19 | Push-on switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1069836A true JPH1069836A (en) | 1998-03-10 |
| JP3046785B2 JP3046785B2 (en) | 2000-05-29 |
Family
ID=16798443
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9223456A Expired - Lifetime JP3046785B2 (en) | 1997-08-20 | 1997-08-20 | Push-on switch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3046785B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002519754A (en) * | 1998-06-24 | 2002-07-02 | ビズテック インコーポレイテッド | Wearing device with flexible display |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3023354B2 (en) | 1998-04-22 | 2000-03-21 | 株式会社ワコール | Clothing having a body shape adjustment function or muscle support function |
-
1997
- 1997-08-20 JP JP9223456A patent/JP3046785B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002519754A (en) * | 1998-06-24 | 2002-07-02 | ビズテック インコーポレイテッド | Wearing device with flexible display |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3046785B2 (en) | 2000-05-29 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20000215 |