JP4393124B2

JP4393124B2 - switch

Info

Publication number: JP4393124B2
Application number: JP2003199771A
Authority: JP
Inventors: 友彦谷村; 晃齊藤
Original assignee: 日本開閉器工業株式会社
Priority date: 2003-07-22
Filing date: 2003-07-22
Publication date: 2010-01-06
Anticipated expiration: 2023-07-22
Also published as: JP2005044521A

Description

【０００１】
【発明の属する技術分野】
本発明は、操作部を上下動して電路の切換を行うスイッチに係り、特に照光面を持ち、視認性を向上させ、様々な操作感触ニーズに対応させ、機器の薄型化、小型化に対応する照光式スイッチに関する。
【０００２】
【従来の技術】
図６は従来の照光式スイッチの断面図であり、接触機構部の上方に発光素子１３を配備した事例である。
図７は別の従来の照光式スイッチの断面図であり、接触機構部と発光素子２０は個別に配備した事例である。
【０００３】
【発明が解決しようとする課題】
図６の従来の照光式スイッチにあっては、端子１２を突出させたベース１１とバネ用燐青銅等の弾性板を湾曲状に形成してクリックアクション特性を得る可動接片１０とで接触機構部を構成し、接触機構部の上方に発光素子１３を配備しているため、発光素子１３の接続のために大きな配置スペースが必要であった。また操作部７の横ブレを防止するためには、操作部７の高さも必要であり、スイッチ本体を構成するハウジング８の高さや均一な照光面を確保するための大きさとも一定以上の省スペース化は困難であった。
また、図７の従来の照光式スイッチにあっては、省スペース化のためにベース１７と可動接片１６で構成される接触機構部と照光部を独立して配置したものの照光部を構成するレンズ１９と発光素子２０を側面に配備したため、スイッチの長さが大きくなるという難点があった。
本発明は、上記問題点を解決し、操作部の下方に設けた接触機構部に内蔵される接点の下方に発光素子を配備し、透光部材で形成された操作部を照光して視認性を高めるとともに省スペース化に対応した照光式スイッチを提供することを目的とする。
【０００４】
【課題を解決するための手段】
本発明は、上記目的を達成するために、複数の端子を突出したベースとカバーからなるスイッチ本体内に接触機構部を配設し、前記カバーの略中央部に形成した貫通穴から前記スイッチ本体の上方に突出した頭部と、該頭部の下方に弾性部材で略ドーム状に形成した反転部を一体的に形成した操作部からなるスイッチにおいて、前記操作部を透光性部材で形成し、前記接触機構部を構成する前記反転部内の略中央部に接点を設け、該接点の下方の周囲の前記反転部内に一乃至複数の発光素子を配備し、前記カバーの前記貫通穴から下方に向けて傾斜面を環状に形成し、前記スイッチ本体内に漏えいする前記発光素子からの光を前記傾斜面で反射させて前記反転部の上方に位置する前記頭部を均一照光可能に構成したものである。
また、スイッチ本体を構成するカバーを透光性部材で形成し、前記接触機構部の下方の周囲の前記反転部内に配備した発光素子の光が前記透光性部材にて形成した前記カバーを照光するように構成したものである。
さらに、接触機構部を構成する接点の下方の周囲の前記反転部内に複数配備する発光素子のうちいずれかを、電流制限用素子とする。
【０００５】
【発明の実施の形態】
本発明によれば、複数の端子を突出したベースとカバーからなるスイッチ本体内に接触機構部を配設し、前記カバーの略中央部に形成した貫通穴から前記スイッチ本体の上方に突出した頭部と、該頭部の下方に弾性部材で略ドーム状に形成した反転部を一体的に形成した操作部からなるスイッチにおいて、前記操作部を透光性部材で形成し、前記接触機構部を構成する前記反転部内の略中央部に接点を設け、該接点の下方の周囲の前記反転部内に一乃至複数の発光素子を配備し、前記カバーの前記貫通穴から下方に向けて傾斜面を環状に形成し、前記スイッチ本体内に漏えいする前記発光素子からの光を前記傾斜面で反射させて前記反転部の上方に位置する前記頭部を均一照光可能に構成したので、発光素子の光は、接触機構部を構成する接点に遮蔽されて影を作ることなく、反転部と一体的に形成された頭部を照光させるという優れた特徴を持つ。
【０００６】
【実施例】
以下、本発明の実施例について、図面を参照しながら詳細に説明する。
図１は本発明のスイッチの実施例を表す対角断面図、図２はその中央断面図、図３はその分解斜視図、図４はその照光状態を示す要部断面図である。
加えて、図５は発光素子の配置方法を表す要部斜視図である。
【０００７】
これらの図において、スイッチ本体部分を構成するベース６の内側の底面部６ｂに段部を形成した穴６ｃと凹部６ｄを設けて接触機構部を構成するプリント基板３を配置し、このプリント基板上に設けられた電極３ａに対向して配置されている操作部２の裏面には電極３ａと接触して導伝経路を形成する接点２ｄを配設している。
また、プリント基板３には端子穴３ｂと投光穴３ｃを設け、位置決め用に鍔部４ａを設けた端子４を複数装着するとともに、投光穴３ｃには電極３ａの下方から発光素子５を一乃至複数配備する構成としている。
【０００８】
操作部２は、ゴム弾性部材をドーム状に形成して反転部２ｂを構成し、この反転部２ｂは押圧しない状態で接点２ｄと電極３ａとを所定の間隔に保持し、押圧した状態で接点２ｄを電極３ａから解離させる方向に作用するとともに、急速な変形によるクリックアクション特性を発生させる構造としてクリック反転力と復帰力とを付勢し、この反転部２ｂの上方に押下力を伝達するブロック状の頭部２ａを一体に形成している。
【０００９】
スイッチ本体を構成するカバー１の略中央部には貫通穴１ａを設け、上下動する操作部２の頭部２ａを、この貫通穴１ａで横ガタを極力少なくし、滑らかな上下動作を可能とする構造とし、この貫通穴１ａから下方に向けて傾斜面１ｂを環状に配設して反転部２ｂの変形に対応した空間と成し、カバー１の底面部にはボス１ｆと突起１ｇを配してベース６と組合わされた時、ベース６内に配置するプリント基板３の上下ガタを抑えるとともに、反転部２ｂの下方に配置した段部２ｃをプリント基板上での位置決めとして作用させる。
また、カバー１の下方には植設された舌下部１ｄと、この舌下部１ｄに穿設された角穴１ｅが形成されている。
【００１０】
ベース６に端子４と発光素子５を取り付けたプリント基板３を組入れた後、接触機構部を構成する操作部２をプリント基板３の上に載置し、頭部２ａをカバー１の貫通穴１ａに挿入しつつ、カバー１の舌下部１ｄに設けた角穴１ｅをベース６の凸部６ａに掛止して本発明のスイッチが完成する
このように構成された本発明のスイッチは、図４に示すように、操作部２を透光性部材で形成すると接点２ｄの下方の周囲の反転部２ｂ内に配設した発光素子５から投光される光は、反転部２ｂ内部から放射し、接点２ｄの上方に位置して本来発光素子５の光が遮光されて影を形成するところに、カバー１の内面に環状に配設された傾斜面１ｂに反射された光が、略中央部に位置する操作部２の頭部２ａに集光され、操作部２を均一に照光させることができる。
【００１１】
さらに、発光素子５が接点２ｄの下方の周囲の反転部２ｂ内に配備されているため、照光式スイッチの薄型化、小型化に対応することができるとともに、発光素子５から光が投光されて操作部２が照光面を構成してシステムオペレーターへの正確な情報伝達が可能となる。
【００１２】
均一照光の光源として発光素子５はＬＥＤタイプにより高輝度化とトータルの消費電力の削減を図り、メンテナンス性の高いスイッチを提供するとともに、弾性部材の材質硬度を変更し、異なるクリック特性の反転部２ｂを形成して操作感触の向上を図り、様々なニーズに対応することができる。
【００１３】
また、本実施例においては操作部２を主に照光する事例を記述したが、スイッチ本体を構成するカバー１を透光性部材で形成することにより、従来にない照光形態を有するスイッチを提供することが出来る。（図示せず）
特に、カバー１の上面を曲面１ｃとし、発光素子５から投光された光が内部の傾斜面１ｂに当って屈折し、曲面１ｃに当ってスイッチ本体から放射されるため作業状態などの情報を的確に認知する視認性を確保することができる。
【００１４】
図５は接触機構部の下方に位置するプリント基板３の裏面に２個の発光素子５を配備した事例を表す要部斜視図である。２個の発光素子５のうち一方をチップ抵抗にすることにより電流制限用抵抗内蔵型スイッチや、回路パターンを変更して色別の２個の発光素子５を配備して２色照光式スイッチを構成することが可能であるが、本発明はこのような応用事例を排除する物ではない。
また、発光素子５の固定方法にはハンダ付けや耐熱性の導電接着剤及びスポット溶接や機械的接合など様々な方法がある。
【００１５】
【発明の効果】
以上、詳細に説明したように、本発明によれば、次のような効果を奏することができる。
（１）複数の端子を突出したベースとカバーからなるスイッチ本体内に接触機構部を配設し、前記カバーの略中央部に形成した貫通穴から前記スイッチ本体の上方に突出した頭部と、該頭部の下方に弾性部材で略ドーム状に形成した反転部を一体的に形成した操作部からなるスイッチにおいて、前記操作部を透光性部材で形成し、前記接触機構部を構成する前記反転部内の略中央部に接点を設け、該接点の下方の周囲の前記反転部内に一乃至複数の発光素子を配備し、前記カバーの前記貫通穴から下方に向けて傾斜面を環状に形成し、前記スイッチ本体内に漏えいする前記発光素子からの光を前記傾斜面で反射させて前記反転部の上方に位置する前記頭部を均一照光可能に構成したので、照光面を持つ操作部を均一に照光させて、視認性を向上させ、照光式スイッチを採用する機器の作業状態を確実に認知させることができる。
（２）複数の端子を突出したベースとカバーからなるスイッチ本体内に接触機構部を配設し、前記カバーの略中央部に形成した貫通穴から前記スイッチ本体の上方に突出した頭部と、該頭部の下方に弾性部材で略ドーム状に形成した反転部を一体的に形成した操作部からなるスイッチにおいて、前記操作部を透光性部材で形成し、前記接触機構部を構成する前記反転部内の略中央部に接点を設け、該接点の下方の周囲の前記反転部内に一乃至複数の発光素子を配備し、前記カバーの前記貫通穴から下方に向けて傾斜面を環状に形成し、前記スイッチ本体内に漏えいする前記発光素子からの光を前記傾斜面で反射させて前記反転部の上方に位置する前記頭部を均一照光可能に構成したので、発光素子を接触機構部の下方の周囲の前記反転部内に配設して、発光素子の配置スペースを最小にし、機器の省スペース化に貢献することが出来る。
（３）スイッチ本体を構成するカバーを透光性部材で形成し、前記接触機構部の下方の周囲の前記反転部内に配備した発光素子の光が前記透光性部材にて形成した前記カバーを照光する構成にしたので、従来にない照光形態を有する照光式スイッチを提供することができる。
（４）接触機構部を構成する接点の下方の周囲の前記反転部内に複数配備する発光素子のうちいずれかを、電流制限用素子としたので、１種類のスイッチで発光体の制御方法を自由に選択することができる。
（５）操作部は略ドーム型に形成された反転部と、該反転部と一体的に形成された頭部から構成され、該反転部の下方に段部を形成してベースの底面部との位置決めとし、カバーの底面部に植設されたボスと突起で弾性部材の固定が確実におこなわれ、カバーの略中央部に設けた貫通穴により押下時のグラツキが少なく、極めて良好な操作感を維持することができる。
【図面の簡単な説明】
【図１】本発明のスイッチの実施例を表す対角断面図である。
【図２】本発明のスイッチの実施例を表す中央断面図である。
【図３】本発明のスイッチの実施例を表す分解斜視図である。
【図４】本発明のスイッチの照光部を示す要部断面図である。
【図５】本発明のスイッチの発光素子の配置方法を表す要部斜視図である。
【図６】従来の押しボタンスイッチの事例を表す断面図である。
【図７】従来の押しボタンスイッチの別の事例を表す断面図である。
【符号の説明】
１、９カバー
１ａ貫通穴
１ｂ傾斜面
１ｃ曲面
１ｄ舌下部
１ｅ角穴
１ｆボス
１ｇ突起
２、７、１４操作部
２ａ頭部
２ｂ反転部
２ｃ段部
２ｄ接点
３プリント基板
３ａ電極
３ｂ端子穴
３ｃ投光穴
４、１２、１８端子
４ａ鍔部
５、１３、２０発光素子
６、１１、１７ベース
６ａ凸部
６ｂ底面部
６ｃ穴
６ｄ凹部
８、１５ハウジング
１０、１６可動接片
１９レンズ[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a switch that moves an operation part up and down to switch an electric circuit, and in particular, has an illumination surface, improves visibility, responds to various operational touch needs, and responds to thinner and smaller equipment. The present invention relates to an illuminated switch.
[0002]
[Prior art]
FIG. 6 is a cross-sectional view of a conventional illuminated switch, and shows an example in which a light emitting element 13 is provided above the contact mechanism.
FIG. 7 is a cross-sectional view of another conventional illuminated switch, in which the contact mechanism portion and the light emitting element 20 are provided separately.
[0003]
[Problems to be solved by the invention]
In the conventional illuminated switch shown in FIG. 6, a contact mechanism is formed by a base 11 from which a terminal 12 is projected and a movable contact piece 10 which is formed by bending an elastic plate such as a phosphor bronze for a spring to obtain a click action characteristic. Since the light emitting element 13 is arranged above the contact mechanism portion, a large arrangement space is required for connection of the light emitting element 13. In addition, the height of the operation unit 7 is also required to prevent the operation unit 7 from being laterally shaken, and the height of the housing 8 constituting the switch body and the size for ensuring a uniform illumination surface are both less than a certain level. Space making was difficult.
Further, the conventional illumination type switch shown in FIG. 7 constitutes an illumination unit in which the contact mechanism unit composed of the base 17 and the movable contact piece 16 and the illumination unit are arranged independently for space saving. Since the lens 19 and the light emitting element 20 are provided on the side surface, there is a problem that the length of the switch is increased.
The present invention solves the above-mentioned problems, arranges a light emitting element below a contact built in a contact mechanism provided below the operation unit, and illuminates the operation unit formed of a translucent member for visibility. An object of the present invention is to provide an illumination type switch that enhances the space and saves space.
[0004]
[Means for Solving the Problems]
In order to achieve the above object, the present invention provides a contact main body in a switch main body comprising a base and a cover projecting a plurality of terminals, and the switch main body from a through hole formed in a substantially central portion of the cover. A switch comprising a head part protruding upward and an operation part formed integrally with a reversing part formed in an approximately dome shape by an elastic member below the head part, wherein the operation part is formed of a translucent member. The contact mechanism portion is provided with a contact at a substantially central portion in the reversing portion, and one or a plurality of light emitting elements are disposed in the reversing portion around the lower portion of the contact portion, and downward from the through hole of the cover. an inclined surface toward formed annularly, and the head uniformly illuminated capable configuration is reflected by the inclined surface of the light located above the front Symbol reversing section from the light emitting element leaks to the switch body Is.
Further, a cover constituting the switch body is formed of a translucent member, and light of a light emitting element disposed in the reversing portion around the lower part of the contact mechanism unit illuminates the cover formed of the translucent member. It is comprised so that it may do.
Furthermore, either one of the light emitting elements of a plurality deployed in the inverted portion of the periphery of the lower contacts constituting the contact mechanism unit, the current limiting element.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
According to the present invention, a contact mechanism is disposed in a switch body including a base and a cover projecting a plurality of terminals, and a head projecting above the switch body from a through hole formed in a substantially central portion of the cover. And an operating part integrally formed with a reversing part formed in an approximately dome shape with an elastic member below the head, the operating part is formed of a translucent member, and the contact mechanism part is A contact is provided at a substantially central portion in the reversing portion, and one or a plurality of light emitting elements are provided in the reversing portion around the lower portion of the contact, and an inclined surface is annularly formed downward from the through hole of the cover. formed in, the so light from the light-emitting elements are configured to allow the head uniform illumination located above the front Symbol reversing portion is reflected by the inclined surface leakage to the switch body, the light emitting element Are the contacts that make up the contact mechanism. Without creating shadows are shielded, with excellent feature that is illuminated inverted portion are integrally formed with the head.
[0006]
【Example】
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a diagonal sectional view showing an embodiment of the switch of the present invention, FIG. 2 is a central sectional view thereof, FIG. 3 is an exploded perspective view thereof, and FIG.
In addition, FIG. 5 is a main part perspective view showing a light emitting element arrangement method.
[0007]
In these drawings, a printed circuit board 3 constituting a contact mechanism portion is provided by providing a hole 6c having a stepped portion and a recessed portion 6d on a bottom surface portion 6b inside a base 6 constituting a switch body portion. A contact point 2d is formed on the back surface of the operation unit 2 disposed opposite to the electrode 3a provided in the contact portion 2a to form a conduction path in contact with the electrode 3a.
The printed circuit board 3 is provided with a terminal hole 3b and a light projecting hole 3c, and a plurality of terminals 4 each provided with a flange 4a are mounted for positioning, and the light emitting element 5 is inserted into the light projecting hole 3c from below the electrode 3a. One or more deployments are configured.
[0008]
The operation portion 2 forms a rubber elastic member in a dome shape to constitute a reversing portion 2b. The reversing portion 2b holds the contact 2d and the electrode 3a at a predetermined interval without being pressed, and is in a pressed state. thereby acts to dissociate the contacts 2 d from the electrode 3a, and a click reversing force and the restoring force urges the structure for generating the click action characteristics due to rapid deformation, transmitting a pressing force above the inversion portion 2b The block-shaped head portion 2a is integrally formed.
[0009]
A through hole 1a is provided in the substantially central portion of the cover 1 constituting the switch body, and the head 2a of the operation unit 2 that moves up and down is reduced as much as possible by the through hole 1a, thereby enabling smooth vertical movement. The inclined surface 1b is annularly arranged downward from the through hole 1a to form a space corresponding to the deformation of the reversing portion 2b, and a boss 1f and a projection 1g are arranged on the bottom surface of the cover 1. When combined with the base 6, the upper and lower backlash of the printed circuit board 3 disposed in the base 6 is suppressed, and the stepped portion 2c disposed below the reversing portion 2b acts as positioning on the printed circuit board.
Further, a tongue lower portion 1d that is planted and a square hole 1e that is drilled in the tongue lower portion 1d are formed below the cover 1.
[0010]
After the printed circuit board 3 having the terminals 4 and the light emitting elements 5 attached to the base 6 is assembled, the operation unit 2 constituting the contact mechanism unit is placed on the printed circuit board 3, and the head 2 a is placed in the through hole 1 a of the cover 1. The switch of the present invention is completed by hooking the square hole 1e provided in the lower tongue portion 1d of the cover 1 to the convex portion 6a of the base 6 while being inserted into the cover 1. FIG. As shown in FIG. 4, when the operation unit 2 is formed of a translucent member, light emitted from the light emitting element 5 disposed in the reversing unit 2b around the contact 2d is emitted from the reversing unit 2b. The light reflected from the inclined surface 1b that is annularly disposed on the inner surface of the cover 1 is formed at a substantially central portion where the light of the light emitting element 5 is originally shielded to form a shadow, located above the contact 2d. The light is condensed on the head 2a of the operation unit 2 and the operation unit 2 is uniformly illuminated. Can do.
[0011]
Furthermore, since the light emitting element 5 is disposed in the surrounding reversing portion 2b below the contact 2d , it is possible to cope with the reduction in thickness and size of the illuminated switch, and light is projected from the light emitting element 5. Thus, the operation unit 2 constitutes an illumination surface, and accurate information transmission to the system operator becomes possible.
[0012]
The light emitting element 5 as a light source for uniform illumination increases the brightness and reduces the total power consumption by the LED type, provides a switch with high maintainability, changes the material hardness of the elastic member, and inverts parts with different click characteristics 2b can be formed to improve the operational feel and meet various needs.
[0013]
Moreover, although the example which mainly illuminates the operation part 2 was described in the present Example, the switch which has the illumination form which is not before is provided by forming the cover 1 which comprises a switch main body with a translucent member. I can do it. (Not shown)
In particular, since the upper surface of the cover 1 is a curved surface 1c, the light projected from the light emitting element 5 is refracted by hitting the inner inclined surface 1b and radiated from the switch body by hitting the curved surface 1c. Visibility to recognize accurately can be secured.
[0014]
FIG. 5 is a main part perspective view showing an example in which two light emitting elements 5 are arranged on the back surface of the printed circuit board 3 located below the contact mechanism. Two one Ri current use or built-in resistor switch limited by the fact that the chip resistance of the light emitting element 5, by deploying two light emitting elements 5 for each color by changing the circuit pattern 2 color illumination Although it is possible to construct a type switch, the present invention does not exclude such an application.
Further, there are various methods for fixing the light emitting element 5, such as soldering, heat-resistant conductive adhesive, spot welding, and mechanical joining.
[0015]
【The invention's effect】
As described above in detail, according to the present invention, the following effects can be obtained.
(1) A contact mechanism is disposed in a switch body including a base and a cover projecting a plurality of terminals, and a head projecting above the switch body from a through hole formed in a substantially central portion of the cover ; In the switch comprising an operation part integrally formed with a reversing part formed in an approximately dome shape with an elastic member below the head, the operation part is formed of a translucent member, and constitutes the contact mechanism part A contact is provided at a substantially central portion in the reversing portion, one or a plurality of light emitting elements are provided in the reversing portion around the lower portion of the contact, and an inclined surface is formed in an annular shape downward from the through hole of the cover. the so light from the light-emitting elements are configured to allow the head uniform illumination located above the front Symbol reversing portion is reflected by the inclined surface leakage to the switch body, an operation portion having an illumination surface Uniform illumination to improve visibility Is, it is possible to reliably recognize the working state of the apparatus employing the illumination switch.
(2) A contact mechanism is disposed in a switch body composed of a base and a cover protruding a plurality of terminals, and a head protruding above the switch body from a through hole formed in a substantially central portion of the cover ; In the switch comprising an operation part integrally formed with a reversing part formed in an approximately dome shape with an elastic member below the head, the operation part is formed of a translucent member, and constitutes the contact mechanism part A contact is provided at a substantially central portion in the reversing portion, one or a plurality of light emitting elements are provided in the reversing portion around the lower portion of the contact, and an inclined surface is formed in an annular shape downward from the through hole of the cover. the so light from the light-emitting elements are configured to allow the head uniform illumination located above the front Symbol reversing portion is reflected by the inclined surface leakage to the switch body, a light emitting element contact mechanism of the inversion portion of the periphery of the lower And setting, by the arrangement space of the light emitting elements to a minimum, it is possible to contribute to space saving of the apparatus.
(3) The cover in which the cover constituting the switch body is formed of a translucent member, and the light of the light emitting element disposed in the reversing portion around the lower part of the contact mechanism unit is formed of the translucent member. Since it is set as the structure which illuminates, the illumination type switch which has the illumination form which is not in the past can be provided.
(4) Since any one of a plurality of light emitting elements arranged in the reversing part around the contact point constituting the contact mechanism part is a current limiting element , the method of controlling the light emitter can be freely controlled with one type of switch. Can be selected.
(5) The operation portion is composed of a reversing portion formed in a substantially dome shape and a head portion formed integrally with the reversing portion, and a step portion is formed below the reversing portion to form a bottom surface portion of the base. The elastic members are securely fixed by the bosses and protrusions planted on the bottom of the cover, and the through-hole provided in the approximate center of the cover reduces the glitch when pressed down, resulting in a very good operation feeling. Can be maintained.
[Brief description of the drawings]
FIG. 1 is a diagonal sectional view showing an embodiment of a switch of the present invention.
FIG. 2 is a central sectional view showing an embodiment of the switch of the present invention.
FIG. 3 is an exploded perspective view showing an embodiment of the switch of the present invention.
FIG. 4 is a cross-sectional view of a main part showing an illumination part of the switch of the present invention.
FIG. 5 is a perspective view of a main part showing a method for arranging light emitting elements of the switch of the present invention.
FIG. 6 is a cross-sectional view illustrating an example of a conventional push button switch.
FIG. 7 is a cross-sectional view showing another example of a conventional push button switch.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1, 9 Cover 1a Through-hole 1b Inclined surface 1c Curved surface 1d Lower tongue 1e Square hole 1f Boss 1g Protrusion 2, 7, 14 Operation part 2a Head 2b Reversing part 2c Step part 2d Contact 3 Printed circuit board 3a Electrode 3b Terminal hole 3c Throw Light hole 4, 12, 18 Terminal 4a Gutter 5, 13, 20 Light emitting element 6, 11, 17 Base 6a Convex 6b Bottom 6c Hole 6d Concave 8, 15 Housing 10, 16 Movable contact piece 19 Lens

Claims

複数の端子を突出したベースとカバーからなるスイッチ本体内に接触機構部を配設し、前記カバーの略中央部に形成した貫通穴から前記スイッチ本体の上方に突出した頭部と、該頭部の下方に弾性部材で略ドーム状に形成した反転部を一体的に形成した操作部からなるスイッチにおいて、前記操作部を透光性部材で形成し、前記接触機構部を構成する前記反転部内の略中央部に接点を設け、該接点の下方の周囲の前記反転部内に一乃至複数の発光素子を配備し、前記カバーの前記貫通穴から下方に向けて傾斜面を環状に形成し、前記スイッチ本体内に漏えいする前記発光素子からの光を前記傾斜面で反射させて前記反転部の上方に位置する前記頭部を均一照光可能に構成したことを特徴とするスイッチ。A contact mechanism portion is disposed in a switch body composed of a base and a cover projecting a plurality of terminals, a head projecting above the switch body from a through hole formed in a substantially central portion of the cover, and the head In the switch composed of an operation part integrally formed with an inversion part formed in an approximately dome shape by an elastic member below the operation part, the operation part is formed of a translucent member, and the inside of the inversion part constituting the contact mechanism part A contact is provided in a substantially central part, one or a plurality of light emitting elements are provided in the reversing part around the lower part of the contact, an inclined surface is formed in an annular shape downward from the through hole of the cover, and the switch switch, characterized in that the light from the light emitting element that leaked was the head uniformly illuminated capable configuration located above the front Symbol reversing portion is reflected by the inclined surface into the body.

前記スイッチ本体を構成するカバーを透光性部材で形成し、前記接触機構部の下方の周囲の前記反転部内に配備した発光素子の光が前記透光性部材にて形成した前記カバーを照光する請求項１記載のスイッチ。A cover constituting the switch body is formed of a translucent member, and light of a light emitting element disposed in the reversing portion around the contact mechanism portion illuminates the cover formed of the translucent member. The switch according to claim 1.

前記接触機構部を構成する接点の下方の周囲の前記反転部内に複数配備する発光素子のうちいずれかを、電流制限用素子とした請求項１及び請求項２記載のスイッチ。 Either a switch according to claim 1 and claim 2, wherein the current limiting element of the light-emitting element in which a plurality deployed in the inverted portion of the periphery of the lower contacts constituting the contact mechanism.