【０００１】[0001]
【産業上の利用分野】本発明はテレビゲーム装置やポー
タブル型電子ゲーム装置に用いられるコントロールキー
装置に関し、特に表示キャラクター等の移動方向を指定
するための方向性コントロールキーに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control key device used in a video game device or a portable electronic game device, and more particularly to a directional control key for designating a moving direction of a display character or the like.
【０００２】[0002]
【従来の技術】本出願人による実開平４ー５９４７２号
において、実公平３−１３９５１号で開示されている従
来の方向性コントロールキーの問題点を改善したコント
ロールキー機構を提案した。前記した実公平３−１３９
５１号において、キートップと一体的に形成された底面
中央の先端部が半球状となっており、キートップの下側
に電極が形成された基板を備え、そして該半球状の先端
部と該基板との間に常に微小間隔が存在するように該キ
ートップ下面が弾力性の保持部材に載置されたものが公
知となっている。尚、テレビゲームはテレビジョンに画
像と音声を出力して楽しむ電子ゲームに対する通称で、
ビデオゲームとも呼ばれる。2. Description of the Related Art In Japanese Utility Model Application Laid-Open No. 4-59472, the applicant of the present application has proposed a control key mechanism which solves the problems of the conventional directional control keys disclosed in Japanese Utility Model Publication No. 3-13951. Actual fair 3-139
In No. 51, the tip at the center of the bottom formed integrally with the key top is hemispherical, and a substrate having an electrode formed on the lower side of the key top is provided, and the hemispherical tip and the It is known that the lower surface of the key top is placed on an elastic holding member so that a minute gap is always present between the key top and the substrate. It should be noted that the video game is a popular name for electronic games that are enjoyed by outputting images and sounds to a television.
Also called a video game.
【０００３】キートップの上面の押圧操作部をある方向
に押圧すると、キートップが可動保持部材の弾力性に抗
して下がり底面中央の先端部が基板に当接し、該先端部
が支点となりシーソ式に押圧方向に傾動し、押圧力を受
けた側の可動保持部の下面に形成されている導電ゴム
（可動接点）を対応する電極に接触させることにより電
気的に短絡させる。When the pressing operation portion on the upper surface of the key top is pressed in a certain direction, the key top is lowered against the elasticity of the movable holding member and the tip of the center of the bottom surface contacts the substrate, and the tip serves as a fulcrum. Expressionally, the conductive rubber (movable contact) formed on the lower surface of the movable holding portion on the side that receives the pressing force and contacts the corresponding electrode is electrically short-circuited.
【０００４】[0004]
【発明が解決しようとする課題】前記した従来の方向性
キーでは、キートップの押圧時に、キートップの底面の
先端部が基板に直接当接するので、先端部の押圧による
衝撃が基板に加わる。さらに該先端部がキートップの傾
動する度に該基板との間に摩擦が生じる。方向性キーの
使用頻度が多いので、キートップ操作の都度加わる衝撃
や摩耗により、基板が破損する原因となり耐久性に難点
があった。In the conventional directional key described above, when the key top is pressed, the tip of the bottom surface of the key top directly abuts on the substrate, so that the substrate is impacted by the pressing of the tip. Further, friction is generated between the tip end portion and the substrate each time the key top tilts. Since the directional key is frequently used, the impact and abrasion applied each time the key top is operated causes the substrate to be damaged, resulting in a difficulty in durability.
【０００５】さらにキートップの操作頻度が特定方向に
集中していると、キートップの先端部の摩耗が特定方向
に偏って形状がいびつになるため、全方向一律の操作性
が維持できなくなる。またキートップの先端部や基板が
摩耗してしまうと先端部と基板との間隔に開きが生じて
しまい、先端部の支点としての高さが低くなり、当初の
操作性が期待できなくなる。さらに、支点となる先端部
がキートップと一体的に形成されているので、先端部を
構成する材料の選択に制限があり、摩耗に強い材料を使
用することが困難であり、かつ操作性を向上させるため
に必要な高精度の加工に制約があった。Further, if the frequency of operation of the key tops is concentrated in a specific direction, the wear of the tips of the key tops is biased in the specific direction and the shape becomes distorted, so that uniform operability in all directions cannot be maintained. Further, if the tip portion of the key top or the substrate is worn, the gap between the tip portion and the substrate is opened, and the height of the tip portion as a fulcrum becomes low, so that the initial operability cannot be expected. Furthermore, since the tip that serves as a fulcrum is formed integrally with the key top, there is a limit to the selection of the material that constitutes the tip, and it is difficult to use a material that is resistant to wear, and operability is reduced. There was a constraint on the high-precision machining required for improvement.
【０００６】上記した従来技術の問題点を解決するため
に本願出願人による実開平４−５９４７２号において、
ハウジングの開口部より露出する押圧操作部と支点体に
当接する底面部を有するキートップ部材と、該キートッ
プ部材の下方に配置された、複数の接点を有する回路基
板と、該回路基板上に載置された、可動接点を含む弾性
体と、該弾性体の中央の支点保持部に保持された支点体
を有するコントロールキー機構を提案した。In order to solve the above-mentioned problems of the prior art, in Japanese Utility Model Laid-Open No. 4-59472 filed by the present applicant,
A key top member having a pressing operation portion exposed from the opening of the housing and a bottom surface portion abutting on the fulcrum body, a circuit board having a plurality of contacts arranged below the key top member, and a circuit board on the circuit board. A control key mechanism has been proposed which has an elastic body including a movable contact placed thereon and a fulcrum body held by a fulcrum holding portion at the center of the elastic body.
【０００７】前記するコントロールキーにおいて支持体
は球体とし、支点体に当接するキートップ部材の底面部
は平面部となっている。球体は弾性体に嵌合して保持さ
れているがキートップ部底面に繰り返し当接する間に、
弾性体の押さえが効かなくなり球体がズレて、キートッ
プを押した場合に隣の接点も入ってしまうことがあり、
さらに改良が必要であった。In the above-mentioned control key, the support is a sphere, and the bottom surface of the key top member that abuts the fulcrum is a flat surface. The sphere is fitted and held by the elastic body, but during repeated contact with the bottom surface of the key top part,
The pressing of the elastic body will not work and the sphere will shift, and if you press the key top, the next contact may also enter,
Further improvements were needed.
【０００８】従って本発明のひとつの目的は、耐摩耗
性、耐久性の向上したコントロールキー装置を提供する
ことにある。本発明の他の目的は、操作性の向上したコ
ントロールキー装置を提供することにある。本発明のさ
らに他の目的は、製作が容易なコントロールキー装置を
提供することにある。本発明のさらに他の目的は、メリ
ハリの効いた操作感の得られるコントロールキー装置を
提供することにある。本発明のさらに他の目的は支点体
のズレを抑制したコントロールキー装置を提供すること
にある。Therefore, one object of the present invention is to provide a control key device having improved wear resistance and durability. Another object of the present invention is to provide a control key device with improved operability. Still another object of the present invention is to provide a control key device which is easy to manufacture. It is still another object of the present invention to provide a control key device that provides a sharp and comfortable operation feeling. Still another object of the present invention is to provide a control key device in which displacement of the fulcrum body is suppressed.
【０００９】[0009]
【課題を解決するための手段】本発明の一態様によるコ
ントロールキー装置は、開口部を有するハウジングと、
少なくとも一対の電極部を有する基板と、前記電極部間
の中間部分に位置して前記基板上に設置された支点体
と、前記電極部のそれぞれに対応して前記基板上に弾性
部材により支持され可動的に設置された可動接点部と、
キートップ部とを有し、前記キートップ部は前記開口部
からハウジング上部に露出する押圧操作部と、前記可動
接点部のそれぞれに対応して形成された接点押圧部と、
前記支点体に対向して位置する中央部とを有し、前記支
点体は前記中央部に対向して凸球面部を有し、前記中央
部は前記凸球面部に対応する凹球面部を有し、前記キー
トップ部は、前記押圧操作部に押圧力が加えられていな
いとき、前記中央部が前記支点体から微小間隔をおいて
離間して位置するように前記弾性部材の弾性力により保
持されており、前記押圧操作部に加えられた押圧力に応
答して前記弾性部材の弾性力に抗して所定方向に傾動
し、下降した可動接点部が対応する電極部を導通させ、
押圧力が解除されたとき前記弾性部材の弾性力によって
上側に付勢されて前記中央部が前記支点体から微小間隔
をおいて離間する位置に復帰するように構成されてなる
ことを特徴とする。A control key device according to one aspect of the present invention includes a housing having an opening,
A substrate having at least a pair of electrode members, and the fulcrum member disposed onsaid substrate is positioned in the middle portion between the electrode portions, it is supported by an elastic member on said substrate in correspondence to each of the electrode portions A movable contact part that is movably installed,
A key top portion, the key top portion is a pressing operation portion exposed from the opening to the upper part of the housing, and a contact pressing portion formed corresponding to each of the movable contact portions,
And a central portion located opposite to said fulcrum member, the fulcrum member has a convex spherical surfaceportion opposite the central portion, the central portion have a concave sphericalsurface portion corresponding to the convex sphericalportionAnd the key
The top part has no pressing force applied to the pressing operation part.
When the center part is slightly spaced from the fulcrum,
The elastic force of the elastic member is used to keep them apart.
It is held and responds to the pressing force applied to the pressing operation section.
In response, it tilts in a predetermined direction against the elastic force of the elastic member.
Then, the movable contact part that descends makes the corresponding electrode part conductive,
When the pressing force is released by the elastic force of the elastic member
It is biased to the upper side and the central part is slightly spaced from the fulcrum.
It is characterizedin that it is configured to return to a position where it is separated by a gap.
【００１０】また、本発明の他の態様によるコントロー
ルキー装置は、開口部を有するハウジングと、互いに直
交する直線上に、直交点に対し対称の位置に配置された
一対ずつの電極部を有する基板と、前記直交点上に位置
して前記基板上に配置された支点体と、前記電極部のそ
れぞれに対応して前記基板上に弾性部材により支持され
可動的に設置された可動接点部と、キートップ部とを有
し、前記キートップ部は前記開口部からハウジング上部
に露出する押圧操作部と、前記可動接点部のそれぞれに
対応して形成された接点押圧部と、前記支点体に対応す
る位置に形成された中央部とを有し、前記支点体は前記
中央部に対向して突出するように配置されており、前記
中央部は前記支点体に対応して凹球面部を有しており、
前記キートップ部は、前記押圧操作部に押圧力が加えら
れていないとき、前記中央部が前記支点体から微小間隔
をおいて位置するように前記弾性部材の弾性力により支
持されており、前記押圧操作部から押圧力が加えられた
とき、前記押圧力に応じて傾動し、前記接点部のいずれ
か一つまたは隣り合う二つが対応するそれぞれの前記電
極部に接触して導通させ、前記押圧力が解除されたとき
前記弾性部材の弾性力によって上側に付勢されて前記中
央部が前記支点体から微小間隔をおいて離間する位置に
復帰するように構成されてなることを特徴とする。本発
明のさらに他の態様によるコントロールキー装置におい
て、前記支点体は前記電極部間の中間部分に位置する弾
性部材を介して前記基板によって支持されていることを
特徴とする。Further, a control key device according to another aspect of the present invention is a substrate having a housing having an opening and a pair of electrodes arranged on a straight line orthogonal to eachother at symmetricalpositions with respectto an orthogonal point. A fulcrum body located on theorthogonal point and disposed on the substrate, and a movable contact portion movably installed on the substrate corresponding to each of the electrode portions, the movable contact portion being supported by an elastic member. A key operation part, the key operation part being exposed from the opening to the upper part of the housing, the contact operation part formed corresponding to each of the movable contact parts, and the fulcrum body. and a central portion which is formed at a position, the fulcrum memberis disposed so as to project opposite to said central portion, said central portion has a concave sphericalportionin correspondence with the fulcrum member And
The key top section is providedwith a pressing force applied to the pressing operation section.
When not installed, the central part is slightly spaced from the fulcrum.
Is supported by the elastic force of the elastic member so that
When the pressing force is applied from the pressing operation part,the tilting is carried out according to the pressing force, and any one of the contact parts or two adjacent ones comeinto contactwith the corresponding electrode parts.When the pressing force is released
The elastic force of the elastic member urges the upper side to
At the position where the central part is separated from the fulcrum body with a minute gap
It is characterizedin that it is configured to return .Starting
In a control key device according to yet another aspect of Ming
The fulcrum is located at an intermediate position between the electrode parts.
Supported by the substrate via a flexible member
Characterize.
【００１１】本発明のさらに他の態様によるコントロー
ルキー装置においては、少なくとも一対の電極部を有
する基板と、前記電極部のそれぞれに対応して形成され
弾性的に支持される可動接点部と、前記可動接点部間の
中間位置に設けられた穴部とを有し、前記可動接点部が
対応する前記電極部から微小間隔をおいて離間して可動
的に配置されるように前記基板上に載置された弾性部材
と、前記弾性部材の前記穴部より突出するように配置さ
れた凸球面部を有する部材と、押圧操作部と、前記可動
接点部のそれぞれに対応して配置され該可動接点部上に
載置された接点押圧部と、前記凸球面部に対応して設け
られた凹球面部とを有するキートップ部と、前記基板、
前記弾性部材、前記凸球面部を有する部材及び前記キー
トップ部とを収容し、前記キートップ部の所定位置から
の離脱を防止する手段を有するハウジングとを有し、前
記押圧操作部は前記ハウジングの外部に露出しており、
前記キートップ部は、前記押圧操作部に押圧力が加えら
れていないとき、前記凹球面部が前記凸球面部から微小
間隔をおいて位置するように前記弾性部材の弾性力によ
り支持されており、前記押圧操作部に押圧力が加えられ
たとき前記押圧力に応じて傾動し、前記押圧力を受けた
側の前記接点押圧部が対応する前記可動接点部を押し下
げて対応する前記電極部を導通させ、前記押圧力が解除
されたとき前記弾性部材の弾性力によって上側に付勢さ
れて前記凹球面部が前記凸球面部から微小間隔をおいて
離間する位置に復帰するように構成されてなることを特
徴とする。A control key device according to still another aspect of the present invention hasat least a pair of electrode portions.
Tobe formed corresponding to each ofthe substrate and theelectrode portion.
Between the movable contact portion that is elastically supported and the movable contact portion
The movable contact portion has a hole provided at an intermediate position,
Movable with a minute gap from the corresponding electrode
Elastic member mounted on the substrate so as to be arranged in a uniform manner
Andso as to project from the hole of the elastic member.
A member having a convex spherical surface portion, apressing operation portion, and the movable
Is arranged corresponding to each of the contact points, on the movable contact point
Provided in correspondence with the mounted contact pressing part and the convex spherical surface part
A key top part having a concave spherical surface part, and thesubstrate,
The elastic member, the member having the convex spherical surface portion, and the key
The top part is accommodated, and from the predetermined position of the key top part
And a housing having a means for preventing disengagement,before
The pressing operation portion is exposed to the outside of the housing,
The key top section is provided with a pressing force applied to the pressing operation section.
If not, the concave spherical surface is slightly smaller than the convex spherical surface.
Due to the elastic force of the elastic member,
Is supported by a pressing force applied to the pressing operation section.
When tilted, it tilts according to the pressing force and receives the pressing force.
Push down the corresponding movable contact part with the contact pressing part on the side
To make the corresponding electrode part conductive and release the pressing force.
When pushed, it is urged upward by the elastic force of the elastic member.
And the concave spherical surface is slightly spaced from the convex spherical surface.
It is characterizedin that it is configured to return to the separated position .
【００１２】本発明のさらに他の態様によるコントロー
ルキー装置は、少なくとも一対の電極部を有する基板
と、前記電極部のそれぞれに対応して形成され弾性的に
支持される可動接点部と、前記可動接点部間の中間位置
に設けられた支点保持部とを有し、前記可動接点部が対
応する前記電極部から微小間隔をおいて離間して可動的
に配置されるように前記基板上に搭載された弾性部材
と、前記支点保持部によって前記基板上の所定位置に保
持され、露出している部分は凸球面部を有し、埋設され
た部分は弾性部材を介して前記基板によって支持されて
いる支点体と、押圧操作部と、前記可動接点部のそれぞ
れに対応して配置され該可動接点部上に載置された接点
押圧部と、前記支点体に対応して設けられた凹球面部と
を有するキートップ部と、前記基板、前記弾性部材、前
記支点体及び前記キートップ部を収容し、前記キートッ
プ部の所定位置からの離脱を防止する手段を有するハウ
ジングとを有し、前記押圧操作部は前記ハウジングの外
部に露出しており、前記キートップ部は前記押圧操作部
に押圧力が加えられたとき前記押圧力に応じて傾動し、
前記押圧力を受けた側の前記接点押圧部が対応する前記
可動接点部を押し下げるように構成されてなることを特
徴とする。According to still another aspect of the present invention, there is provided a control key device, a substrate having at least a pair of electrode portions, movable contact portions formed corresponding to each of the electrode portions and elastically supported, and the movable portion. A fulcrum holding part provided at an intermediate position between the contact parts, and the movable contact part is mounted on the substrate so as to be movably arranged with a minute gap from the corresponding electrode part. an elastic member that is said is coercive <br/> liftinga predetermined position on the substrate by the fulcrum, the exposed portionsarehave a convex sphericalportion, is embedded
Is supported by the substrate via an elastic member.
A fulcrum memberwhile creating, pushing operation section and the contact point placed on the moving contact portion are arranged corresponding to respective movable contact
And thepressing part, and a key top portion having aconcave spherical portion provided correspondingto the fulcrum member, the substrate, the elastic member, accommodating the fulcrum member and the key top portion, predetermined the key top portion A housing having means for preventing separation from the position, the pressing operation section is exposed to the outside of the housing, and the key top section presses the pressing operation section when a pressing force is applied to the pressing operation section.Tilts according to pressure,
The contact pressing portion on the side receiving the pressing force is configured to press down the corresponding movable contact portion.
【００１３】本発明のさらに他の態様によるコントロー
ルキー装置において、前記キートップ部は該キートップ
部本体の周側位置に設けられた周側部を有し、前記ハウ
ジングの前記離脱防止手段は前記ハウジングの上部裏面
において前記押圧操作部を取り囲み、前記周側部に当接
するように形成されていることを特徴とする。本発明の
さらに他の態様によるコントロールキー装置において、
前記支点体はスチール製の球体であり、前記球体の一部
は弾性部材内に埋設されて前記基板上に保持されている
ことを特徴とする。In a control key device according to yet another aspect of the present invention, the key top portion has a peripheral side portion provided at a peripheral side position of the key top portion main body, and the detachment preventing means of the housing is It is characterized in that it is formed so as to surround the pressing operation portion on the upper back surface of the housing and to come into contact with the peripheral side portion. In a control key device according to still another aspect of the present invention,
The fulcrum is a steel sphere, and a part of the sphere is embedded in an elastic member and held on the substrate.
【００１４】[0014]
【作用】前記の構成において、キートップ部を一つの押
圧操作部において押圧すると、当該押圧操作部に対応す
る接点押圧部が可動接点部を弾性部材の弾性力に抗し押
下げ、可動接点部は基板上の電極に当接し回路を閉じて
導通しスイッチ動作を行う。キートップ部の中央部にあ
るいは複数の押圧操作部に同時に押圧力が加わると、キ
ートップ部は凹面部が支点体の凸面部に沿って滑りなが
ら押圧力のより強い側に傾動し、傾動下降した側の接点
押圧部が対応する可動接点部を押し下げスイッチ動作を
行う。相対する押圧操作部に同時に拮抗した押圧力が加
わると支点体がストッパーの役目をし、相対する左右方
向あるいは上下方向の電極部が同時に導通するのを防止
する。[Function] In the above-mentioned structure, the key top portion ispressed byone
Pressing on thepressure operating unitcorresponds to the pressing operating unit.
Press <br/> lowerdown the contact pressing portion against the movable contact portion in the elastic force of the elastic memberthat, the movable contact portion closes the contact circuit to electrodes on the substrate
Conducts and switches. At the center of the key top
When pressing force is applied to multiple pressing operation parts at the same time , the concave part of the key top part slides along the convex part of thefulcrum body while tilting to the side withstronger pressing force, and the contact pressing part on thetilted and lowered side. There performing press underGuess switch operation corresponding movable contact portion.A pressing force that opposes at the same time is applied to the opposing pressing operation parts.
In case of dislocation, the fulcrum body acts as a stopper, and the opposite left and right sides
Prevents simultaneous conduction of the electrode parts in the vertical or vertical direction
I do.
【００１５】そしてキートップ部から手を離し、押圧を
解除すると、接点押圧部に押圧されていた弾性体の復元
力により、可動接点部が電極から離れ回路を開き、キー
トップ部が元の位置に戻る。また、ハウジングに押圧操
作部を取り囲むようにして設けられた離脱防止手段によ
ってキートップ部はハウジング内の所定一に保持され
る。このようにして上下左右方向の操作を行うことがで
きる。When the hand is released from the key top portion and the pressure is released, the movable contact portion separates from the electrode and opens the circuit due to the restoring force of the elastic body pressed by the contact pressing portion, and the key top portion returns to its original position. Return to. Further, the key top portion is held at a predetermined position in the housing by the separation preventing means provided in the housing so as to surround the pressing operation portion. In this way, the up / down and left / right operation can be performed.
【００１６】キートップ部材を押すと、キートップの凹
面部が支点体の凸球面に面で接し押圧力として加わり、
押圧力は該支点体から弾性部材を介して基板で受ける。
この際に弾性部材にて押圧の際の衝撃力を吸収するとと
もに、凹面部が支点体のズレを抑える。キートップの凹
面部が支点体の凸球面に面接触し、接触面積が増えるの
でキートップの底面は摩耗に対する抵抗性が高まる。前
記構成において支点体をスチール製の球体にすることに
より、さらに摩耗に対する抵抗性が高まり、長期間の使
用においてキートップと基板との間に一定の距離を保
ち、キートップが下降したとき相対する電極部が同時に
導通するのを防ぐ。When the key top member is pushed, the concave surface portion of the key top comes into contact with the convex spherical surface of the fulcrum body by a surface and acts as a pressing force,
The pressing force is received by the substrate from the fulcrum through the elastic member.
At this time, the elastic member absorbs the impact force at the time of pressing, and the concave portion suppresses the displacement of the fulcrum body. The concave surface portion of the key top comes into surface contact with the convex spherical surface of the fulcrum body, and the contact area increases, so that the bottom surface of the key top has increased resistance to abrasion. In the above structure, the steel sphere is used as the fulcrum to further increase the resistance to abrasion and maintain a constant distance between the key top and the substrate during long-term use.
When the key top descends, the opposing electrode parts
Prevents continuity.
【００１７】[0017]
【実施例】以下、図面に基づき本発明の構成を説明す
る。図１は本発明のコントロールキー装置の上側ハウジ
ングを外した平面図であり、図２は図１のＡ−Ａ線のハ
ウジング付きの断面図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below with reference to the drawings. 1 is a plan view of the control key device of the present invention with an upper housing removed, and FIG. 2 is a sectional view taken along line AA of FIG. 1 with a housing.
【００１８】キートップ部材２はキートップ本体が短円
柱形で上面がハウジング１の開口部11より露出し、露出
面には短円柱上面中央の上下左右位置に十字形に形成さ
れた押圧操作部2a、2a、2a、2aが設けてある。十字形の押
圧操作部は円柱上面から若干突出するように形成されて
いる。キートップ部材２の底部には、互いに直交する直
線上に直交点を中心点として対称に配置された上下左右
それぞれの位置に突出した接点押圧部21、21が一体的に
突出して形成されている。図２では左右位置を示し、図
１における上下位置に対応するところは示されていない
が、左右位置と同様に上下位置にも接点押圧部21、21が
キートップ部材２の底面から突出して形成されている。
突出した平面中央底面には底浅の凹球面22が形成されて
いる。該凹球面22は支点体としての支点球体３の上部分
を切り取った内面に対応する形状となっている。The key top member 2 has a key top body of a short cylinder shape and an upper surface exposed through an opening 11 of the housing 1. On the exposed surface, a pressing operation portion is formed in a cross shape at upper, lower, left and right positions of the center of the upper surface of the short cylinder. 2a, 2a, 2a, 2a are provided. The cross-shaped pressing operation portion is formed so as to slightly project from the upper surface of the column. On the bottom portion of the key top member 2, contact pressing portions 21, 21 are formed integrally and projecting vertically and horizontally at symmetrical positions on the straight lines orthogonal to each other with the orthogonal points as the center points. . In FIG. 2, the left and right positions are shown, and the positions corresponding to the upper and lower positions in FIG. 1 are not shown. Has been done.
A shallow concave spherical surface 22 is formed on the central bottom surface of the projecting plane. The concave spherical surface 22 has a shape corresponding to the inner surface obtained by cutting out the upper portion of the fulcrum sphere 3 as a fulcrum body.
【００１９】キートップ部材２には短円柱形のキートッ
プ本体の下方周側に沿って、前記短円柱の径より大きい
円形の周縁鍔2bが鍔状に形成され、周縁鍔2bのそれぞれ
には係止片2c、2c、2c、2cが周縁鍔2bの外縁に沿って前記
十字形の押圧操作部の延長する方向に突出して設けられ
ている。キートップ部材２は、ハウジング１内に収納さ
れ、キートップ上面部が開口部11に遊嵌されている。On the key top member 2, along the lower circumferential side of the short cylinder-shaped key top body, a circular peripheral brim 2b larger than the diameter of the short cylinder is formed in a brim shape, and each of the peripheral brims 2b is formed. Locking pieces 2c, 2c, 2c, 2c are provided so as to project along the outer edge of the peripheral flange 2b in the direction in which the cross-shaped pressing operation portion extends. The key top member 2 is housed in the housing 1, and the upper surface of the key top is loosely fitted in the opening 11.
【００２０】ハウジング１の裏側には開口部11に沿って
二重の円環壁12、13が垂下されている。内側の円環壁12
の径はキートップ本体の円柱部の径より若干大きく、周
縁鍔2bより経が小さく、浅い円環である。キートップ部
材２が押圧されて下がる際のガイドとなるとともに、周
縁鍔2bの上面が円環壁12の縁に当接することによりキー
トップ部材２が開口部11から抜けでないようにしてい
る。外側の円環壁13の径は周縁鍔2bの径より大きく、係
止片2cの先端から反対側の係止片2cの先端までの径より
は若干小さく、円環壁13の前記係止片2cに対応する位置
には一定高さ位置から深さ方向に切欠13aが設けられて
いる。切欠13a内に係止片2cが位置し、キートップ部材
２が開口部に沿って回動しないようになっている。この
ようにして円環壁12、13は周縁鍔2b、係止片2cと連携し
て、キートップ部材２がハウジング１内の所定位置から
離脱するのを防止している。On the back side of the housing 1, double annular walls 12 and 13 are suspended along the opening 11. Inner ring wall 12
The diameter of is slightly larger than the diameter of the cylindrical portion of the keytop body, is smaller than the diameter of the peripheral flange 2b, and is a shallow ring. The key top member 2 serves as a guide when the key top member 2 is pressed and goes down, and the upper surface of the peripheral flange 2b contacts the edge of the annular wall 12 so that the key top member 2 does not come off from the opening 11. The diameter of the outer annular wall 13 is larger than the diameter of the peripheral flange 2b, and slightly smaller than the diameter from the tip of the locking piece 2c to the tip of the opposite locking piece 2c. A notch 13a is provided at a position corresponding to 2c in the depth direction from a constant height position. The locking piece 2c is located in the notch 13a so that the key top member 2 does not rotate along the opening. In this way, the annular walls 12 and 13 cooperate with the peripheral flange 2b and the locking piece 2c to prevent the key top member 2 from being separated from the predetermined position in the housing 1.
【００２１】接点押圧部21、21はそれぞれ対応する弾性
体５の可動支持部51、51の真上に載置され、キートップ
部材２の中央真下位置には支点球体３が位置しており、
支点球体３は回路基板４上に載置された弾性体５の中央
にある有底の略短円筒型の支点保持部52に支持されてい
る。支点球体３の下部は支点保持部52の穴に嵌合埋設さ
れ、該穴より露出する支点球体３の上部はキートップ部
材の底面に設けられた凹球面22に対応する凸球面を形成
する。キートップ部材２に押圧力が加わっていない状態
では凹球面22と支点球体３との間に微小間隔をおく位置
にキートップが弾性体５の可動支持部51、51によって支
持される。支点球体３としてスチール製の球体がよく、
これは真球に制作することが容易であるからである。ま
た弾性体はゴム材によって構成されている。The contact pressing portions 21 and 21 are placed right above the movable supporting portions 51 and 51 of the corresponding elastic body 5, and the fulcrum sphere 3 is located directly below the center of the key top member 2.
The fulcrum sphere 3 is supported by a fulcrum holding portion 52 having a substantially short cylindrical shape and having a bottom in the center of the elastic body 5 placed on the circuit board 4. The lower part of the fulcrum sphere 3 is fitted and embedded in the hole of the fulcrum holding part 52, and the upper part of the fulcrum sphere 3 exposed from the hole forms a convex spherical surface corresponding to the concave spherical surface 22 provided on the bottom surface of the key top member. When no pressing force is applied to the key top member 2, the key tops are supported by the movable support portions 51, 51 of the elastic body 5 at a position where a minute space is provided between the concave spherical surface 22 and the fulcrum sphere 3. A steel sphere is often used as the fulcrum sphere 3,
This is because it is easy to make a true sphere. The elastic body is made of a rubber material.
【００２２】弾性体５の可動支持部51、51はキートップ
部材の接点押圧部21、21に対応する位置に台形円柱を中
空に袴状に形成されており、該台形円柱の頭部に設けら
れた短円柱下面は従来技術と同様に各々独立した導電性
のゴム接点である可動接点部51a、51aが設けられてい
る。弾性体５は接点押圧部21、21に対応して上面から見
て上下左右位置に４つの可動支持部51、51を有し、さら
に中央には支点保持部52を一体にして形成してある。The movable supporting portions 51, 51 of the elastic body 5 are formed by forming a trapezoidal cylinder in a hollow hakama shape at a position corresponding to the contact pressing portions 21, 21 of the key top member, and are provided on the head of the trapezoidal cylinder. The lower surface of the short cylinder is provided with movable contact portions 51a, 51a which are independent conductive rubber contacts as in the prior art. The elastic body 5 has four movable supporting portions 51, 51 at upper, lower, left and right positions as viewed from the upper surface corresponding to the contact pressing portions 21, 21, and a fulcrum holding portion 52 is integrally formed at the center. .
【００２３】キートップ部材２は弾性体５の可動支持部
51、51、51、51を保持している袴部51b、51bの弾性力に
より上側に付勢され回路基板４上に載置されている。キ
ートップ部材２の下方にあたるハウジング１の底面から
垂設した基台14と該基台14を囲む支持壁15に回路基板４
が水平配置されている。弾性体５はハウジングの円環壁
13の下端により回路基板４に当接して固定されている。
回路基板４上には、キートップ部材２の上下左右方向の
接点押圧部21、21、21、21にそれぞれ対向して４つの電極4
aが配置されている。The key top member 2 is a movable support portion of the elastic body 5.
The hank parts 51b, 51b holding the parts 51, 51, 51, 51 are urged upward by the elastic force and placed on the circuit board 4. The circuit board 4 is mounted on the base 14 vertically extending from the bottom surface of the housing 1 below the key top member 2 and the support wall 15 surrounding the base 14.
Are arranged horizontally. The elastic body 5 is an annular wall of the housing.
The lower end of 13 abuts and is fixed to the circuit board 4.
On the circuit board 4, there are four electrodes 4 facing the contact pressing portions 21, 21, 21, 21 of the key top member 2 in the vertical and horizontal directions.
a is located.
【００２４】図３にキートップ部材を下側から見上げた
斜視図を示すと、接点押圧部21、21、21、21は十字状壁に
なっている。キートップ部材２の中央真下は凹球面22
で、支点球体３の上部分の凸球面に対応する形状であ
る。凹球面22のあるキートップ部分は高さ方向に肉厚で
あり、キートップ部材２の耐摩耗性を高めるために材質
をナイロン製にすると良いが、成形時に局部的に厚さ方
向に収縮してしまうことがある。FIG. 3 is a perspective view of the key top member looking up from below, showing that the contact pressing portions 21, 21, 21, 21 are cruciform walls. Below the center of the key top member 2 is a concave spherical surface 22
Then, the shape corresponds to the convex spherical surface of the upper portion of the fulcrum sphere 3. The key top portion having the concave spherical surface 22 is thick in the height direction, and it is preferable to use nylon as the material in order to enhance the wear resistance of the key top member 2. However, during molding, the key top portion locally shrinks in the thickness direction. It may happen.
【００２５】通常ナイロン樹脂では成形時の温度、湿
度、成形機の冷却水の影響から収縮が起こる。これらの
条件を一定に保ち昼夜を問わず製造することは困難で、
特に肉厚部分の収縮が顕著に表れてしまう。これではコ
ントロールキーを組み立ててみると、支点球体とキート
ップ下面との空隙が一定限度を越えてしまう部品が続出
する。しかし本発明の構成にするとキートップ部材２が
押された場合に、支点球体３に対して凹球面22で面接触
するので局部的な収縮による成形誤差は解消される。In general, a nylon resin shrinks due to the temperature, humidity, and cooling water of the molding machine during molding. It is difficult to keep these conditions constant and manufacture it day and night,
In particular, the contraction of the thick portion is remarkably exhibited. In this case, when the control key is assembled, there are many parts in which the gap between the fulcrum sphere and the lower surface of the key top exceeds a certain limit. However, according to the configuration of the present invention, when the key top member 2 is pushed, the concave spherical surface 22 makes surface contact with the fulcrum sphere 3, so that a molding error due to local shrinkage is eliminated.
【００２６】以下にキートップの操作方法を説明する。
ハウジングから露出したキートップ部材２の上面の上下
左右に設けられた押圧操作部2a、2a、2a、2aの何れか一
方を押圧すれば、キートップ部材２は、押圧した側の弾
性体５の可動支持部51の短円柱頭部を保持している袴部
51bの弾性力に抗して押下がる。するとキートップ部材
の凹球面22が支点球体３との微小距離を縮めて支点球体
３の上部凸球面と接触し当接する。The operation method of the key top will be described below.
By pressing any one of the pressing operation portions 2a, 2a, 2a, 2a provided on the upper, lower, left, and right sides of the upper surface of the key top member 2 exposed from the housing, the key top member 2 is pressed by the elastic body 5 on the pressed side. Hakama holding the short cylinder head of the movable support 51
Depresses against the elastic force of 51b. Then, the concave spherical surface 22 of the key top member contracts a minute distance from the fulcrum sphere 3 and comes into contact with and abuts on the upper convex spherical surface of the fulcrum sphere 3.
【００２７】前記凹球面22が支点球体３に当接すると、
キートップ部材２の傾動は支点球体３を支点として凹球
面22が支点球体３の凸球面に接触滑行し押圧した側に傾
動する。この一連の動きはキートップ部材２の押圧方向
と反対側の周縁鍔2bの係止片2cが外側の円環壁の切欠13
aを上側に移動しつつ傾動し、キートップ部材の凹球面2
2が支点球体３に当接して支点球体３が支点となり、キ
ートップ部材２はさらに傾動し、押圧した側のキートッ
プ部材の接点押圧部21は可動支持部51をさらに押下げ、
該可動支持部の真下の可動接点部51aを基板上の電極4a
に当接させ、回路を閉じる。When the concave spherical surface 22 contacts the fulcrum sphere 3,
The key top member 2 is tilted such that the concave spherical surface 22 slides in contact with and slides on the convex spherical surface of the fulcrum sphere 3 with the fulcrum sphere 3 as a fulcrum. In this series of movements, the engaging piece 2c of the peripheral brim 2b on the side opposite to the pressing direction of the key top member 2 is provided with the notch 13 on the outer annular wall.
While tilting a while moving a upward, the concave spherical surface of the key top member 2
2 contacts the fulcrum sphere 3, and the fulcrum sphere 3 serves as a fulcrum, the key top member 2 further tilts, and the contact pressing portion 21 of the pressed key top member further pushes down the movable support portion 51,
The movable contact portion 51a directly below the movable support portion is connected to the electrode 4a on the substrate.
A) and close the circuit.
【００２８】そしてキートップ部材２から手を離し、キ
ートップ部材２の押圧を解除すると、接点押圧部21に押
圧されていた弾性体５の袴部51bの復元力により可動接
点部51aが基板上の電極から離れて回路を開き、キート
ップ部材２が元の位置に戻る。このようにしてそれぞれ
上下左右方向の操作を行うことができる。When the key top member 2 is released and the key top member 2 is released from the pressure, the movable contact portion 51a is placed on the substrate by the restoring force of the hakama portion 51b of the elastic body 5 pressed by the contact pressing portion 21. The circuit is opened apart from the electrodes of the key top member 2 and the key top member 2 returns to its original position. In this way, the up / down / left / right operation can be performed.
【００２９】次に、キートップ部材２を上下方向または
左右方向を同時に、つまりキートップを真上から水平に
した状態で押す操作をすると、キートップ部材の凹球面
22が支点球体３に凹面で当接し、それより下方へは該キ
ートップ部材２は下降することができない。この状態で
は支点体はキートップ部材２の下降を止めるストッパー
として働き、キートップ部材２はいずれの方向に傾動せ
ず水平に保たれ、いずれの接点押圧部21も可動接点部51
aを電極4aに当接することはできない。従って回路基板
４上の上下方向の電極または左右方向の電極を同時に導
通することができないようになっている。Next, when the key top member 2 is pushed vertically or horizontally at the same time, that is, when the key top is pushed horizontally from directly above, the concave spherical surface of the key top member is depressed.
22 abuts on the fulcrum sphere 3 with a concave surface, and the key top member 2 cannot descend below it. In this state, thefulcrum body is a stopper that stops the key top member 2 from descending.
The key top member 2 is kept horizontal without tilting in any direction, and any contact pressing portion 21 is movable contact portion 51.
It is not possible to make a contact with the electrode 4a. Therefore, the vertical electrodes or the horizontal electrodes on the circuit board 4 cannot be conducted at the same time.
【００３０】斜め方向の操作を行うには、例えばキート
ップ部材２の左上方向を押圧すればキートップ部材２は
押した位置、つまり左側及び上側の弾性体５の袴部51b
の弾性力に抗し下がり、キートップ部材の底面の凹球面
22が支点球体３に当接し、該支点球体３を支点としてキ
ートップ部材２が左上方向に傾動し、その押圧位置に対
応する左側及び上側の弾性体の可動支持部51、51が押圧
され、それぞれに内設した可動接点部51a、51aが回路基
板４のそれぞれの電極4a,4aに接触し導通が行なわれ、
キャラクター等の画面動作を左上斜め方向に移動する。To perform an operation in an oblique direction, for example, if the upper left direction of the key top member 2 is pressed, the key top member 2 is at the pressed position, that is, the skirt portion 51b of the left and upper elastic bodies 5.
The concave spherical surface on the bottom of the key top member
22 contacts the fulcrum sphere 3, the key top member 2 tilts in the upper left direction with the fulcrum sphere 3 as a fulcrum, and the movable support portions 51, 51 of the left and upper elastic bodies corresponding to the pressing positions are pressed, The movable contact portions 51a, 51a provided therein contact the respective electrodes 4a, 4a of the circuit board 4 to conduct electricity,
Move the screen movement of characters, etc. diagonally to the upper left.
【００３１】これに準じて、同じように右上斜め方向、
左下斜め方向及び右下斜め方向に操作することができ
る。支点球体３をスチール製にすると真球度の精度が出
しやすく、支点としてキートップの何れの方向にも同一
の操作性が得られる。In accordance with this, the upper right diagonal direction,
It can be operated in the lower left diagonal direction and the lower right diagonal direction. If the fulcrum sphere 3 is made of steel, the accuracy of the sphericity can be easily obtained, and the same operability can be obtained as a fulcrum in any direction of the key top.
【００３２】[0032]
【発明の効果】本発明は以上説明したように構成されて
いるので、以下に記載されるような効果を奏する。キー
トップ部材の底面中央が凹球面になっており、キートッ
プ部材上面の押圧操作部を押すと、支点球体が凹球面で
受けられるので、弾性体で保持された支点球体がズレる
ことがなく隣のキーが入るのを防止することができる。
支点球体がズレることがないので、弾性体の押さえに抗
して弾性体の支点保持部の破損を防ぐことができる。ま
た、支点球体にはキートップの凹球面で当接するので、
点接触ではなく面接触であるので耐摩耗性が向上し、耐
用寿命が長くなるのである。Since the present invention is configured as described above, it has the following effects. The center of the bottom surface of the key top member is a concave spherical surface, and when you press the pressing operation part on the top surface of the key top member, the fulcrum sphere can be received by the concave spherical surface, so the fulcrum sphere held by the elastic body will not move The key of can be prevented.
Since the fulcrum sphere does not shift, it is possible to prevent the fulcrum holding portion of the elastic body from being damaged against the pressing of the elastic body. Also, since the concave spherical surface of the key top makes contact with the fulcrum sphere,
Since surface contact is used instead of point contact, wear resistance is improved and service life is extended.
【００３３】さらにキートップ部材をナイロン材等の成
形時に伸縮する材質を用いた場合に、キートップ部材の
底面中央が凹球面になっていると、支点球体に当接する
際には凹球面全体で当接するので成形時に部分的多少寸
法足らずに成形されても全体的には寸法足らずになるこ
とはない。よって、支点球体の支点としての高さが一定
となりキートップ操作において非常に安定し、何れの方
向に押圧操作しても一律の操作感覚が得られる。また、
非押圧時は支点体とキートップ下面（凹球面）の間には
微小間隔があるので、押圧動作時キートップ動作に遊び
が適度に与えられメリハリの効いた操作感が得られる。
さらにまた、支点体の高さが一定に保たれるのでキート
ップが下降したとき相対する電極部が同時に導通するの
を防ぐ。Further, when the key top member is made of a material that expands and contracts during molding such as nylon material, if the center of the bottom surface of the key top member is a concave spherical surface, the entire concave spherical surface is used when it comes into contact with the fulcrum sphere. Since they are in contact with each other, even if the dimension is partially less than the dimension at the time of molding, the dimension does not become insufficient as a whole. Therefore, the height of the fulcrum sphere as a fulcrum is constant, and it is very stable in the key top operation, and a uniform operation feeling can be obtained regardless of the pressing operation in any direction. Also,
When not pressed between the fulcrum member and the key top bottom surface (concave spherical surface) minute interval theretake any action, because feeling play worked sharp given reasonably obtain the pressing actionTokiki Toppu operation.
Furthermore, since the height of the fulcrum body is kept constant,
When the battery is lowered, the opposite electrode parts will conduct simultaneously.
prevent.
【００３４】さらに本発明の構成によってキートップの
成形加工が容易になり、大量生産に向き、不良品が少な
くなる。さらに支点球体（支点体）はキートップと分離
した部品であるので、部品の摩耗時に交換が最少限度に
行うことができ簡単である。Further, according to the structure of the present invention, the molding process of the key tops is facilitated, which is suitable for mass production and the number of defective products is reduced. Further, since the fulcrum sphere (fulcrum body) is a part separated from the key top, it is easy to replace the part when it is worn out, and it is simple.
【図１】本発明のコントロールキー装置の上側ハウジン
グを外した平面図である。FIG. 1 is a plan view of a control key device of the present invention with an upper housing removed.
【図２】図１のＡ−Ａ線のハウジング付きの断面図であ
る。FIG. 2 is a sectional view taken along line AA of FIG. 1 with a housing.
【図３】キートップ部材を下側から見上げた斜視図であ
る。FIG. 3 is a perspective view of the key top member as seen from below.
１．ハウジング 11. 開口部 12. 円環壁 13. 円環壁 13a.切欠 14. 基台 15. 支持壁 ２. キートップ部材 2a. 押圧操作部 2b. 周縁鍔 2c. 係止片 21. 接点押圧部 22. 凹球面 ３. 支点球体 ４. 回路基板 ５．弾性体 51. 可動支持部 51a.可動接点部 51b.袴部 52. 支点保持部 1. Housing 11. Opening 12. Annular wall 13. Annular wall 13a. Notch 14. Base 15. Support wall 2. Key top member 2a. Push operation part 2b. Perimeter collar 2c. Locking piece 21. Contact pressing part 22. Concave spherical surface 3. Support sphere 4. Circuit board 5. Elastic body 51. Movable support part 51a. Movable contact part 51b. Hakama part 52. Support point holding part
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6277089AJP2500487B2 (en) | 1994-10-17 | 1994-10-17 | Control key device |
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6277089AJP2500487B2 (en) | 1994-10-17 | 1994-10-17 | Control key device |
| Publication Number | Publication Date |
|---|---|
| JPH07169371A JPH07169371A (en) | 1995-07-04 |
| JP2500487B2true JP2500487B2 (en) | 1996-05-29 |
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6277089AExpired - LifetimeJP2500487B2 (en) | 1994-10-17 | 1994-10-17 | Control key device |
| Country | Link |
|---|---|
| JP (1) | JP2500487B2 (en) |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4896003A (en) | 1989-06-30 | 1990-01-23 | Hsieh Man Ching | Multi-position electrical switch |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6366811A (en)* | 1986-09-05 | 1988-03-25 | オムロン株式会社 | Directive switch |
| JPS6352234U (en)* | 1986-09-25 | 1988-04-08 |
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4896003A (en) | 1989-06-30 | 1990-01-23 | Hsieh Man Ching | Multi-position electrical switch |
| Publication number | Publication date |
|---|---|
| JPH07169371A (en) | 1995-07-04 |
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