JP4186612B2

JP4186612B2 - Composite operation type electronic parts

Info

Publication number: JP4186612B2
Application number: JP2002362039A
Authority: JP
Inventors: 耕治尾野; 順佐藤; 幸夫橋本
Original assignee: Panasonic Corp; Matsushita Electric Industrial Co Ltd
Current assignee: Panasonic Corp; Panasonic Holdings Corp
Priority date: 2002-12-13
Filing date: 2002-12-13
Publication date: 2008-11-26
Anticipated expiration: 2022-12-13
Also published as: JP2004193048A

Description

【０００１】
【発明の属する技術分野】
本発明は、各種電子機器の入力操作部に使用されて、操作軸の回転操作、傾倒操作および押圧操作により操作される複合操作型電子部品に関するものである。
【０００２】
【従来の技術】
従来のこの種の複合操作型電子部品について、図１０〜図１３を用いて説明する。
【０００３】
図１０は従来の複合操作型電子部品の正面断面図、図１１は分解斜視図である。
【０００４】
同図において、１は上底面中央に円形の開口部１Ａを有する金属板製のコの字形のカバーで、その上底面内側に開口部１Ａの周囲下面を覆うように配された球状凹部体１Ｂ、およびこれに重ねて配された樹脂製の四角形の枠体２およびその下面を塞ぐように配された第一接点基板３などを抱持して箱型ケースを形成している。
【０００５】
枠体２の中間壁部には中央孔４Ａおよび四つの貫通孔４Ｂ〜４Ｅが設けられ、第一接点基板３上には、上記各孔４Ａ〜４Ｅに対応した位置に、中央固定接点３Ａおよび中心から等距離で９０°の角度間隔の周辺固定接点３Ｂ〜３Ｅが設けられている。
【０００６】
そして、枠体２と第一接点基板３の間には、ラバーシート５および第二接点基板６が挟持され、ラバーシート５には、各頂点部下面に可動接点５Ｆおよび５Ｇ〜５Ｊ（５Ｈ，５Ｊは図示せず）を有するドーム状部５Ａおよび５Ｂ〜５Ｅが、固定接点３Ａおよび３Ｂ〜３Ｅに対応した位置に設けられて、中央押圧スイッチ７Ａおよび周辺押圧スイッチ７Ｂ〜７Ｅ（７Ｃ，７Ｅは図示せず）を形成している。
【０００７】
また、第二接点基板６は、上記のドーム状部５Ｂ〜５Ｅを対応する四つの貫通孔にはめ込んで、第一接点基板３との間にラバーシート５を挟み込むと共に、弾性金属薄板からなる弾性接点８Ａおよび８Ｂを有している。
【０００８】
さらに、９は樹脂製の回転体で、中央に正六角形の貫通孔９Ａを有し、下面には信号接点板１０がインサート成形により固定されており、枠体２の中間壁部の貫通孔４Ａおよび第二接点基板６の中央孔６Ａによって回転可能に保持されて、弾性接点８Ａおよび８Ｂが信号接点板１０に弾接することにより回転部品部を形成している。
【０００９】
そして、１１は棒状の操作軸で、その下端は中心部の水平断面が正六角形である多角形球体１１Ａとなって、回転体９中央の正六角形の貫通孔９Ａに上下動および傾倒可能であるが共回りするように係合すると共に、中央押圧スイッチ７Ａのドーム状部５Ａの上面に当接しており、一方、上方に伸びた円形の軸部１１Ｂが駆動体１２の中央孔１２Ａを貫通してカバー１の開口部１Ａから上方に突出している。
【００１０】
また、駆動体１２は、平板部の上面中央に、操作軸１１下端の多角形球体１１Ａと同中心である球状突部１２Ｂを有しており、この球状突部１２Ｂがカバー１の開口部１Ａ周囲下面に位置する球状凹部体１Ｂの球状凹部部分に対し回転傾倒可能に当接するように、中央孔１２Ａを貫通した操作軸１１の軸部１１Ｂ中間のフランジ部１１Ｃにより支持されている。
【００１１】
さらに、駆動体１２の平板部の下方には、四つの突起１３Ａ〜１３Ｄ（１３Ｄは図示せず）が設けられ、その下端部がそれぞれ周辺押圧スイッチ７Ｂ〜７Ｅのドーム状部５Ｂ〜５Ｅの上面に当接して、駆動体１２および操作軸１１を中立位置に保っている。
【００１２】
次に、このように構成される複合操作型電子部品の動作について説明する。
【００１３】
まず、図１０に示す中立位置において、操作軸１１の軸部１１Ｂを水平回転させると、下端の多角形球体１１Ａと共回りするように係合している回転体９が回転させられ、その下面の信号接点板１０上を弾性接点８Ａ，８Ｂが弾接摺動して、回転部品部としての電気信号を発生する。
【００１４】
そして、操作軸１１の軸部１１Ｂに横方向の押し力を加えて、図１２に矢印Ｘで示す方向に傾倒させると、操作軸１１は下端の多角形球体１１Ａを中心として右方向に回動し、これに伴って軸部１１Ｂの中間に係合している駆動体１２がＺ方向に回動して傾倒し、下方の突起１３Ａが周辺押圧スイッチ７Ｂのドーム状部５Ｂを下方に押して弾性変形させ、可動接点５Ｇが固定接点３Ｂに接触して周辺押圧スイッチ７ＢをＯＮさせる。
【００１５】
この後、軸部１１Ｂに加えた押し力を除くと、ドーム状部５Ｂがその弾性復元力によって元の形状に復帰すると共に、突起１３Ａを押し戻して、操作軸１１を元の図１０の中立位置に復帰させる。
【００１６】
また、軸部１１Ｂに下向きの押し力を加えて、図１３に矢印Ｖで示すように下方へ押圧すると、操作軸１１下端の多角形球体１１Ａの下面が中央押圧スイッチ７Ａのドーム状部５Ａを下方に押して弾性変形させて、可動接点５Ｆが固定接点３Ａに接触して中央押圧スイッチ７ＡをＯＮさせ、軸部１１Ｂに加えた押し力を除くと元の図１０の中立位置に復帰するものであった。
【００１７】
なお、この出願の発明に関連する先行技術文献情報としては、例えば、特許文献１、特許文献２が知られている。
【００１８】
【特許文献１】
特開平１０−２４１５０１号公報
【特許文献２】
特開２０００−４８６８１号公報
【００１９】
【発明が解決しようとする課題】
しかしながら上記従来の複合操作型電子部品は、操作軸１１の回転操作時に、駆動体１２の突起１３Ａ〜１３Ｄと枠体２の貫通孔４Ｂ〜４Ｅとの隙間分だけ、駆動体１２が回転方向に動いて操作する人の手に回転ムラを感じたり、また、操作軸１１の多角形球体１１Ａが上下動および傾倒可能に係合する回転体９の多角形の貫通孔９Ａとの係合部に僅かなギャップが設けられているが、このギャップが原因となって操作軸１１の回転操作時にアソビ角を生じ、操作する人の手にガタツキとして感じることがあるという課題があった。
【００２０】
本発明は、このような従来の課題を解決するものであり、操作軸の回転操作時に、操作する人の手に回転ムラやガタツキ等の不快感を感じ難い複合操作型電子部品を提供することを目的とする。
【００２１】
【課題を解決するための手段】
上記目的を達成するために本発明は、以下の構成を有するものである。
【００２２】
本発明の請求項１に記載の発明は、周囲下面が球状凹部となった円形開口部を上底面の中央に有し、回転部品部および中央押圧スイッチを下底面の中央に有し、下底面の中心から９０°の角度間隔に四つの周辺押圧スイッチを有すると共に、球状凹部の外方に、対向する二つの周辺押圧スイッチを結ぶいずれか一方の中心線に沿って、上底面から下方に突出する二つのボスを有する箱型ケースと、中心に円形貫通孔を有する上面中央の球状突部が箱型ケースの円形開口部周囲下面の球状凹部に対し回転および傾倒可能に当接して係合すると共に、この球状突部の外方に、二つのボスがそれぞれ係合する二つの長孔を有し、更に周辺押圧スイッチの押圧部にそれぞれ当接する四つの突起を外周下面に有し、かつ球状突部下面の円形貫通孔の周囲が、外周が壁部となっている多角形の平面部である駆動体と、回転部品部の回転体の多角形の貫通孔に傾倒および上下動可能であるが共回りするように係合して、下面が中央押圧スイッチの押圧部に当接する、水平断面が多角形である多角形球体を下端に有し、この球体から上方に伸びた円形の軸部が上記駆動体の円形貫通孔と回転および上下動自在に係合して上方に突出すると共に、軸部の中間に設けられたフランジ部の上面が、中央押圧スイッチによる上方への付勢力により、外形が上記駆動体の平面部と同形状である柔軟性を有する摩擦板を挟み付けて上記駆動体の平面部に弾接している操作軸からなる複合操作型電子部品としたものであり、箱型ケースの上底面から突出したボスが駆動体の二つの長孔に係合しているので、操作軸の回転操作時に駆動体が回転方向に動くことが少なく、また、回転操作時には、フランジ部の上面と駆動体の多角形の平面部が柔軟性を有する同形状の摩擦板を介して弾接触し、かつ摩擦板は平面部外周の壁部に回転しないようにはめ込まれているので、安定した回転トルクで滑らかに回転し、操作軸の多角形球体と回転体の多角形の貫通孔との係合部のギャップによるガタツキを操作する人の手に感じ難くなり、不快感を感じないで回転型部品部を動作させることができ、更に、操作軸を傾倒操作して周辺押圧スイッチを、押圧操作して中央押圧スイッチをそれぞれスムーズに動作させることができる複合操作型電子部品を実現できるという作用効果を有する。
【００２３】
請求項２に記載の発明は、請求項１記載の発明において、箱型ケースの上底面から突出した二つのボスと駆動体の二つの長孔との係合部が、中心線に沿う方向にはボスの両側に大きな隙間があり、中心線に直角方向ではボスの根元側では僅かな隙間で先端側に向けて次第に大きな隙間となっているものであり、操作軸の回転操作時には、二つのボス根元側の僅かな隙間の部分で駆動体が回転方向に動くことを規制し、操作軸を二つのボスを結ぶ中心線の方向に傾倒操作する場合には、ボス両側の大きな隙間の方向に、長孔内でボスが動いて駆動体を傾倒させ、二つのボスを結ぶ中心線に直角な方向に傾倒操作する場合には、ボスの根元側を支点として、次第に隙間が大きくなった先端側が動いて駆動体を傾倒させることができるという作用効果を有する。
【００２４】
請求項３に記載の発明は、請求項１記載の発明において、操作軸のフランジ部の上面が摩擦板を挟み付けて駆動体の平面部に弾接するように、中央押圧スイッチと共に上記フランジ部を上方に付勢するばね体を、フランジ部下方の操作軸の周囲に配設したものであり、請求項１に記載の発明による作用に加えて、中立位置における走査軸の上下方向位置が安定すると共に、操作軸の回転操作時における摩擦板の摩擦力が大きくなって、回転トルクおよび回転感触をより安定した状態とすることができるという作用効果を有する。
【００２５】
請求項４に記載の発明は、請求項１記載の発明において、回転部品部と中央押圧スイッチが一体化されて、個別の電子部品として予め形成されたものであり、本複合操作型電子部品を構成する各機能部品の中でもっとも複雑な部分を予め組み立てて検査をしておくことができるので、複合操作型電子部品全体としての組立てが容易になるという作用効果を有する。
【００２６】
【発明の実施の形態】
以下、本発明の実施の形態について、図１〜図９を用いて説明する。
【００２７】
なお、従来の技術の項で説明した構成と同一構成の部分には同一符号を付して、詳細な説明を省略する。
【００２８】
（実施の形態１）
実施の形態１を用いて、本発明の特に請求項１〜３に記載の発明について説明する。
【００２９】
図１は本発明の第１の実施の形態による複合操作型電子部品の正面断面図、図２は分解斜視図であり、同図に示すように、基本的な構成は従来の技術の項で説明したものと同じである。
【００３０】
すなわち、１は上底面中央に円形の開口部１Ａを有する金属板製のコの字形のカバーで、その上底面内側に開口部１Ａの周囲下面を覆う球状凹部体２１を、両側面間に樹脂製の四角形の枠体２およびその下面を塞ぐように配された第一接点基板３を抱持して箱型ケースを形成している。
【００３１】
そして、枠体２の中間壁部には中央孔４Ａおよび四つの貫通孔４Ｂ〜４Ｅが設けられ、第一接点基板３上には、各孔４Ａ〜４Ｅに対応して、中央固定接点３Ａおよび中心から等距離で９０°の角度間隔の周辺固定接点３Ｂ〜３Ｅ（３Ｃ，３Ｅは図示せず）が設けられていると共に、枠体２と第一接点基板３の間には、ラバーシート５および第二接点基板６が挟持され、ラバーシート５には、各頂点部下面に可動接点５Ｆおよび５Ｇ〜５Ｊ（５Ｈ，５Ｊは図示せず）を有するドーム状部５Ａおよび５Ｂ〜５Ｅ（５Ｃ，５Ｅは図示せず）が、中央固定接点３Ａおよび周辺固定接点３Ｂ〜３Ｅに対応した位置に設けられて、中央押圧スイッチ７Ａおよび周辺押圧スイッチ７Ｂ〜７Ｅ（７Ｃ，７Ｅは図示せず）を形成している。
【００３２】
また、第二接点基板６は、上記のドーム状部５Ｂ〜５Ｅに対応する四つの貫通孔にはめ込んで、第一接点基板３との間にラバーシート５を挟み込むと共に、弾性金属薄板からなる弾性接点８Ａおよび８Ｂを有しており、枠体２の中間壁部の中央孔４Ａおよび第二接点基板６の中央孔６Ａにより回転可能に保持された樹脂製の回転体９の下面にインサート成形固定された信号接点板１０に、上記弾性接点８Ａおよび８Ｂが弾接して回転部品部を形成している。
【００３３】
なお、枠体２の下方に配設された第二接点基板６、ラバーシート５、第一接点基板３と回転体９およびこれらの部材により構成される各押圧スイッチ並びに回転部品部は、従来の技術の場合と全く同じであるので、図２において、これらの部材は一体に組み合わせた状態で示している。
【００３４】
そして、２２は棒状の操作軸で、その下端は中心部の水平断面が正六角形である多角形球体２２Ａとなって、回転体９中央の正六角形の貫通孔９Ａに上下動および傾倒可能であるが共回りするように係合すると共に、中央押圧スイッチ７Ａのドーム状部５Ａの上面に当接して上方への付勢がされており、上方に伸びた円形の軸部２２Ｂが駆動体２３の中央孔２３Ａを貫通してカバー１の開口部１Ａから上方に突出している。
【００３５】
また、駆動体２３は、平板部２３Ｃの上面中央に、操作軸２２下端の多角形球体２２Ａと同中心である球状突部２３Ｂを有しており、この球状突部２３Ｂがカバー１の開口部１Ａ周囲下面の球状凹部体２１の球状凹部部分に対し回転および傾倒可能に当接するようにして、中央孔２３Ａを貫通した軸部２２Ｂ中間の大径のフランジ部２２Ｃにより上方へ付勢・支持され、更に、駆動体２３の平板部２３Ｃの下方には、四つの突起２４Ａ〜２４Ｄ（２４Ｄは図示せず）が設けられ、その下端部がそれぞれ周辺押圧スイッチ７Ｂ〜７Ｅのドーム状部５Ｂ〜５Ｅの上面に当接することにより、駆動体２３および操作軸２２を中立位置に保っていることも従来の技術の場合と同様である。
【００３６】
しかし、駆動体２３の球状突部２３Ｂ外方の平板部２３Ｃには、中心に対し対向する二つの突起２４Ａと２４Ｃすなわち二つの周辺押圧スイッチ７Ｂと７Ｄを結ぶ中心線に沿って二つの長孔２５Ａ，２５Ｂが設けられ、箱型ケースの上底面を形成する球状凹部体２１の平面部から下方に突出した二つのボス２６Ａ，２６Ｂが係合していると共に、操作軸２２の軸部２２Ｂ中間のフランジ部２２Ｃ上面と駆動体２３の球状突部２３Ｂ下面の平面部２３Ｄとの間には、平板リング状の摩擦板２７が挟み付けられている。
【００３７】
これら二つの長孔２５Ａ，２５Ｂと二つのボス２６Ａ，２６Ｂとの係合部分および摩擦板２７の装着部分の状態を、図１のＰ−Ｐ線における断面図である図３に示す。
【００３８】
同図に示すように、二つのボス２６Ａ，２６Ｂは円形断面の棒体で、長孔２５Ａ，２５Ｂの長手方向の略中央部に係合しており、二つの周辺押圧スイッチ７Ｂ，７Ｄを結ぶ中心線に沿う方向には両側に大きな余裕があり、中心線に直角な方向では僅かな隙間となっている。
【００３９】
そして、二つのボス２６Ａ，２６Ｂの直径は、図１に示すように、長孔２５Ａ，２５Ｂの上端に係合する部分から根元側は一定の大きさで、ここから先端側に向けて次第に細くなっている。
【００４０】
また、平板リング状の摩擦板２７は、ゴム板やフェルトまたは弾性樹脂板等の柔軟性を有する材料で形成され、図３に示すように、六角形の外径が駆動体２３の平面部２３Ｄ周囲の六角形の壁部内にはめ込まれると共に、中心の円形孔を操作軸２２の軸部２２Ｂが貫通している。
【００４１】
本実施の形態による複合操作型電子部品は以上のように構成されるものであり、次にその動作について説明する。
【００４２】
まず、図１に示す中立位置において、操作軸２２の軸部２２Ｂを水平回転させると、下端の多角形球体２２Ａと共回りするように係合している回転体９が回転させられ、その下面の信号接点板１０上を弾性接点８Ａ，８Ｂが弾接摺動して、回転部品部としての電気信号を発生する。
【００４３】
この時、操作軸２２は中央押圧スイッチ７Ａのドーム状部５Ａによって上方への付勢力を受けているので、大径のフランジ部２２Ｃの上面は摩擦板２７を介して駆動体２３の平面部２３Ｄに弾接触しながら回転するが、摩擦板２７は外径が平面部２３Ｄの周囲の壁部にはめ込まれているので回転せず、フランジ部２２Ｃの上面と摩擦板２７の間で滑ることにより安定した回転トルクを生じて滑らかに回転する。
【００４４】
これにより、操作軸２２の多角形球体２２Ａと回転体９の貫通孔９Ａとの係合部のギャップによるガタツキを、操作する人の手に感じ難くなっている。
【００４５】
また、操作軸２２のフランジ部２２Ｃ上面と摩擦板２７の間の摩擦力によって駆動体２３も回転しようとするが、平板部２３Ｃの二つの長孔２５Ａ，２５Ｂに球状凹部体２１から突出した二つのボス２６Ａ，２６Ｂが僅かな隙間で係合しているので、駆動体２３は回転方向には動かない。
【００４６】
従って、この複合操作型電子部品を操作する人の手に不快感を感じないで回転部品部を操作することができる。
【００４７】
次に、操作軸２２の軸部２２Ｂに横方向の押し力を加えて、図４に矢印Ｘで示す方向に傾倒操作すると、操作軸２２は下端の多角形球体２２Ａを中心として右方向に回動し、これに伴い軸部２２Ｂの中間に係合している駆動体２３がＺ方向に回動して傾倒し、これにより下方の突起２４Ａが周辺押圧スイッチ７Ｂのドーム状部５Ｂを下方に押して弾性変形させ、可動接点５Ｇが周辺固定接点３Ｂに接触して周辺押圧スイッチ７ＢをＯＮさせる。
【００４８】
この後、軸部２２Ｂに加えた押し力を除くと、ドーム状部５Ｂがその弾性復元力によって元の形状に復帰すると共に、突起２４Ａを押し戻して、駆動体２３および操作軸２２を元の図１の中立位置に復帰させる。
【００４９】
この時、駆動体２３の平板部２３Ｃの長孔２５Ａ，２５Ｂに係合した二つのボス２６Ａ，２６Ｂは、それぞれの長孔２５Ａ，２５Ｂ内の大きな余裕のある方向において、その係合位置がボス２６Ａは先端側へボス２６Ｂは根元側へと移動しながら、駆動体２３の突起２４Ａが周辺押圧スイッチ７Ｂのドーム状部５Ｂの上面を的確に押すようにガイドする。
【００５０】
また、軸部２２Ｂに上記のＸ方向とは直角な横方向に押し力を加えて傾倒操作する場合には、図１に示す中立位置において長孔２５Ａ，２５Ｂとボス２６Ａ，２６Ｂがそれぞれ係合している状態において、図５の側面部分断面図に示すように、駆動体２３すなわち長孔２５Ａ，２５Ｂが傾いて、周辺押圧スイッチ７Ｃまたは７Ｅ（図示せず）をＯＮさせる。
【００５１】
この場合、二つのボス２６Ａ，２６Ｂの先端側が細くなっているので、駆動体２３の長孔２５Ａ，２５Ｂは無理なく傾くことができ、この方向への傾倒操作時にも、駆動体２３の突起２４Ｂまたは２４Ｄが周辺押圧スイッチ７Ｃまたは７Ｅのドーム状部５Ｃまたは５Ｅの上面を的確に押すことができる。
【００５２】
更に、操作軸２２の軸部２２Ｂに下向きの押し力を加えて、図６に矢印Ｖで示すように下方へ押圧操作すると、操作軸２２下端の多角形球体２２Ａの下面が中央押圧スイッチ７Ａのドーム状部５Ａを下方に押して弾性変形させて、可動接点５Ｆが中央固定接点３Ａに接触して中央押圧スイッチ７ＡをＯＮさせ、軸部２２Ｂに加えた押し力を除くと、ドーム状部５Ａがその弾性復元力によって元の形状に復帰すると共に、操作軸２２を上方へ押し戻して、元の図１の中立位置に復帰させる。
【００５３】
この操作軸２２の押圧操作時に、駆動体２３は下方の四つの突起２４Ａ〜２４Ｄが周辺押圧スイッチ７Ｂ〜７Ｅのドーム状部５Ｂ〜５Ｅの上面に当接・支持されていて、下方へは動かない。
【００５４】
そして、図７は以上に説明した複合操作型電子部品の他の構成を示す正面断面図である。
【００５５】
すなわち、図１の正面断面図に示したものに対し、このものは操作軸２８のフランジ部２８Ａ下方の軸部２８Ｂの周囲に、フランジ部２８Ａを上方に付勢するばね体としてのコイルばね２９が配設されている。
【００５６】
このコイルばね２９は、フランジ部２８Ａ下面と枠体３０の中間壁３０Ａとの間に挿入され、フランジ部２８Ａ上面が摩擦板２７を挟み付けて駆動体３１の平面部３１Ａに強く弾接するように配設されたものであり、このような構成とすることによって、図１に示したものよりも中立位置における操作軸２８すなわち軸部２８Ｂの上下方向位置が安定すると共に、操作軸２８の回転操作時における摩擦板２７の摩擦力が大きくなって、回転トルクおよび回転感触をより安定した状態とすることができる。
【００５７】
以上のように本実施の形態によれば、箱型ケースの上底面から突出したボス２６Ａ，２６Ｂが駆動体２３の二つの長孔２５Ａ，２５Ｂに係合しているので、操作軸２２の回転操作時に駆動体２３が回転方向に動くことが少なく、またこの回転操作時に、フランジ部２２Ｃ上面と駆動体２３の多角形の平面部２３Ｄが柔軟性を有する同形状の摩擦板２７を介して弾接触し、かつ摩擦板２７は平面部２３Ｄ外周の壁部に回転しないようにはめ込まれているので、安定した回転トルクで滑らかに回転し、操作軸２２の多角形球体２２Ａと回転体９の多角形の貫通孔９Ａとの係合部のギャップによるガタツキが操作する人の手に感じ難くなり、不快感を感じないで回転型部品部を動作させることができ、更に、操作軸２２を傾倒操作して周辺押圧スイッチ７Ｂ〜７Ｅを、押圧操作して中央押圧スイッチ７Ａをそれぞれスムーズに動作させることができる複合操作型電子部品を実現できるものである。
【００５８】
（実施の形態２）
実施の形態２を用いて、本発明の特に請求項４に記載の発明について説明する。
【００５９】
なお、実施の形態１と同一構成の部分には同一符号を付して詳細な説明を省略する。
【００６０】
図８は本発明の第２の実施の形態による複合操作型電子部品の正面断面図であり、同図に示すように、本実施の形態による複合操作型電子部品は上記の実施の形態１によるものに対し、個別の電子部品として予め形成されたものを、各機能部品部として使用している点が異なっている。
【００６１】
すなわち、実施の形態１において軸部２２Ｂすなわち操作軸２２により直接操作される回転部品部と中央押圧スイッチを、本出願人が提案している特開２０００−４８６８１号公報に開示した図９の正面断面図に示すような、中間にフランジ部３２Ｂを有する操作軸３２の断面が正六角形の多角形球体３２Ａを、信号接点板を保持した回転体３３中央の六角形の貫通孔３３Ａに上下動および傾倒可能であるが共回りするように挿通して、その下端部を回転体３３の下方に配設された押圧スイッチ部３４の駆動板３５上面に当接させた、プッシュスイッチ付きの個別の回転型電子部品３６として予め形成し、性能検査も実施しておく。
【００６２】
そして、図８に示すように、この個別の回転型電子部品３６を四つの個別押圧スイッチ３７と共にプリント配線基板３８上の所定の位置に配設し、その上部に周囲下面が球状凹部となった円形開口部３９Ａおよび下方へ突出した二つのボス３９Ｂを有するケース３９で覆い、その内側に、実施の形態１の場合と同様の駆動体４０および摩擦板２７を配設するものである。
【００６３】
このようにして形成された本実施の形態による複合操作型電子部品は、その構成要素である各機能部品部の中でもっとも複雑である回転部品部を、中央押圧スイッチと組み合わせて予め組み立てて検査をしておくので、複合操作型電子部品全体としての組立てが容易になると共に、実施の形態１によるものと同様の動作をすることができるものにできる。
【００６４】
なお、以上の実施の形態１および２の説明において、操作軸２２の多角形球体２２Ａまたは操作軸３２の多角形球体３２Ａの断面形状および、これらが係合する回転体９の貫通孔９Ａまたは回転体３３の貫通孔３３Ａはいずれも正六角形であるとしたが、これは正八角形等であってもよい。
【００６５】
【発明の効果】
以上のように本発明によれば、箱型ケースの上底面から突出したボスが駆動体の二つの長孔に係合していて、操作軸の回転操作時に駆動体が回転方向に動くことが少なく、また、回転操作時には、フランジ部の上面と駆動体の多角形の平面部が柔軟性を有する同形状の摩擦板を介して弾接触し、かつ摩擦板は平面部外周の壁部に回転しないようにはめ込まれているので、安定した回転トルクで滑らかに回転し、操作軸の多角形球体と回転体の貫通孔との係合部のギャップによるガタツキが操作する人の手に感じ難くなり、不快感を感じないで回転型部品部を動作させると共に、操作軸を傾倒操作して周辺押圧スイッチを、押圧操作して中央押圧スイッチをそれぞれスムーズに動作させる複合操作型電子部品を実現できるという有利な効果が得られる。
【図面の簡単な説明】
【図１】本発明の第１の実施の形態による複合操作型電子部品の正面断面図
【図２】同分解斜視図
【図３】同図１のＰ−Ｐ線における断面図
【図４】同傾倒操作時の正面断面図
【図５】同図４の場合に対して直角な方向に傾倒操作する場合のボス中心線における側面部分断面図
【図６】同押圧操作時の正面断面図
【図７】同他の構成の複合操作型電子部品の正面断面図
【図８】本発明の第２の実施の形態による複合操作型電子部品の正面断面図
【図９】同個別の回転型電子部品の正面断面図
【図１０】従来の複合操作型電子部品の正面断面図
【図１１】同分解斜視図
【図１２】同傾倒操作時の正面断面図
【図１３】同押圧操作時の正面断面図
【符号の説明】
１カバー
１Ａ開口部
２，３０枠体
３第一接点基板
３Ａ中央固定接点
３Ｂ〜３Ｅ周辺固定接点
４Ａ，６Ａ，２３Ａ中央孔
４Ｂ〜４Ｅ，９Ａ，３３Ａ貫通孔
５ラバーシート
５Ａ〜５Ｅドーム状部
５Ｆ〜５Ｊ可動接点
６第二接点基板
７Ａ中央押圧スイッチ
７Ｂ〜７Ｅ周辺押圧スイッチ
８Ａ，８Ｂ弾性接点
９，３３回転体
１０信号接点板
２１球状凹部体
２２，２８，３２操作軸
２２Ａ，３２Ａ多角形球体
２２Ｂ，２８Ｂ軸部
２２Ｃ，２８Ａ，３２Ｂフランジ部
２３，３１，４０駆動体
２３Ｂ球状突部
２３Ｃ平板部
２３Ｄ，３１Ａ平面部
２４Ａ〜２４Ｄ突起
２５Ａ，２５Ｂ長孔
２６Ａ，２６Ｂ，３９Ｂボス
２７摩擦板
２９コイルばね
３０Ａ中間壁
３４押圧スイッチ部
３５駆動板
３６回転型電子部品
３７個別押圧スイッチ
３８プリント配線基板
３９ケース
３９Ａ円形開口部[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a composite operation type electronic component that is used in an input operation unit of various electronic devices and is operated by rotating, tilting, and pressing an operation shaft.
[0002]
[Prior art]
This type of conventional composite operation type electronic component will be described with reference to FIGS.
[0003]
FIG. 10 is a front sectional view of a conventional composite operation type electronic component, and FIG. 11 is an exploded perspective view.
[0004]
In the figure, reference numeral 1 denotes a U-shaped cover made of a metal plate having a circular opening 1A at the center of the upper bottom surface, and a spherical concave body 1B arranged on the inner side of the upper bottom surface so as to cover the lower surface around the opening 1A. In addition, a box-shaped case is formed by holding the resin-made square frame 2 and the first contact board 3 disposed so as to close the lower surface thereof.
[0005]
A central hole 4A and four through holes 4B to 4E are provided in the intermediate wall portion of the frame body 2. On the first contact substrate 3, the central fixed contact 3A and the center fixed contact 3A and the positions corresponding to the holes 4A to 4E are provided. Peripheral fixed contacts 3B to 3E are provided at an equal distance from the center and at an angular interval of 90 °.
[0006]
A rubber sheet 5 and a second contact board 6 are sandwiched between the frame 2 and the first contact board 3, and the rubber sheet 5 has movable contacts 5F and 5G to 5J (5H, Domes 5A and 5B to 5E having 5J (not shown) are provided at positions corresponding to the fixed contacts 3A and 3B to 3E, and the central pressing switch 7A and the peripheral pressing switches 7B to 7E (7C and 7E are (Not shown).
[0007]
In addition, the second contact board 6 is configured to fit the dome-shaped portions 5B to 5E in the corresponding four through holes to sandwich the rubber sheet 5 between the first contact board 3 and an elastic metal thin plate. It has contacts 8A and 8B.
[0008]
Further, 9 is a resin-made rotating body having a regular hexagonal through hole 9A in the center, and a signal contact plate 10 fixed to the lower surface by insert molding, and the through hole 4A in the intermediate wall portion of the frame 2 The elastic contact points 8A and 8B are elastically held by the central hole 6A of the second contact board 6 and elastically contact the signal contact plate 10 to form a rotating part.
[0009]
Reference numeral 11 denotes a rod-like operation shaft, and the lower end thereof is a polygonal sphere 11A having a regular hexagonal horizontal cross section at the center, and can be moved up and down and tilted into a regular hexagonal through hole 9A at the center of the rotating body 9. Are engaged with each other and are in contact with the upper surface of the dome-shaped portion 5A of the central pressing switch 7A, while the circular shaft portion 11B extending upward penetrates through the central hole 12A of the driving body 12. Projecting upward from the opening 1 A of the cover 1.
[0010]
Further, the drive body 12 has a spherical protrusion 12B having the same center as the polygonal sphere 11A at the lower end of the operation shaft 11 at the center of the upper surface of the flat plate portion, and the spherical protrusion 12B is the opening 1A of the cover 1. It is supported by a flange portion 11C in the middle of the shaft portion 11B of the operation shaft 11 that penetrates the central hole 12A so as to come into contact with the spherical concave portion of the spherical concave portion 1B located on the lower peripheral surface so as to be capable of rotating and tilting.
[0011]
Further, four protrusions 13A to 13D (13D not shown) are provided below the flat plate portion of the driving body 12, and lower ends thereof are upper surfaces of the dome-shaped portions 5B to 5E of the peripheral press switches 7B to 7E, respectively. The driving body 12 and the operation shaft 11 are kept in the neutral position.
[0012]
Next, the operation of the composite operation type electronic component configured as described above will be described.
[0013]
First, when the shaft portion 11B of the operation shaft 11 is horizontally rotated in the neutral position shown in FIG. 10, the rotating body 9 engaged so as to rotate together with the polygonal sphere 11A at the lower end is rotated, and the lower surface thereof. The elastic contacts 8A and 8B slide elastically on the signal contact plate 10 to generate an electrical signal as a rotating part.
[0014]
Then, when a lateral pressing force is applied to the shaft portion 11B of the operation shaft 11 and tilted in the direction indicated by the arrow X in FIG. 12, the operation shaft 11 rotates rightward around the polygonal sphere 11A at the lower end. Accordingly, the driving body 12 engaged in the middle of the shaft portion 11B rotates and tilts in the Z direction, and the lower protrusion 13A pushes the dome-shaped portion 5B of the peripheral pressing switch 7B downward to be elastic. The movable contact 5G comes into contact with the fixed contact 3B to turn on the peripheral pressing switch 7B.
[0015]
Thereafter, when the pressing force applied to the shaft portion 11B is removed, the dome-shaped portion 5B is restored to its original shape by the elastic restoring force, and the projection 13A is pushed back to move the operation shaft 11 back to the original neutral position in FIG. Return to.
[0016]
Further, when a downward pressing force is applied to the shaft portion 11B and pressed downward as indicated by an arrow V in FIG. 13, the lower surface of the polygonal sphere 11A at the lower end of the operation shaft 11 pushes the dome-shaped portion 5A of the central pressing switch 7A. When it is pushed downward and elastically deformed, the movable contact 5F comes into contact with the fixed contact 3A to turn on the central pressing switch 7A, and when the pressing force applied to the shaft portion 11B is removed, it returns to the original neutral position in FIG. there were.
[0017]
As prior art document information related to the invention of this application, for example, Patent Document 1 and Patent Document 2 are known.
[0018]
[Patent Document 1]
Japanese Patent Laid-Open No. 10-241501
[Patent Document 2]
JP 2000-48681 A
[0019]
[Problems to be solved by the invention]
However, in the conventional composite operation type electronic component, when the operation shaft 11 is rotated, the drive body 12 is rotated in the rotation direction by the gap between the protrusions 13A to 13D of the drive body 12 and the through holes 4B to 4E of the frame body 2. The rotating hand 9 feels uneven rotation in the hand of the person who moves and operates, and the polygonal sphere 11A of the operation shaft 11 engages with the polygonal through hole 9A of the rotating body 9 that can be moved up and down and tilted. Although a slight gap is provided, there is a problem in that the gap causes a play angle when the operation shaft 11 is rotated, which may cause a rattle in the hand of the operator.
[0020]
The present invention solves such a conventional problem, and provides a composite operation type electronic component in which it is difficult to feel uncomfortable feelings such as uneven rotation and rattling in the hand of an operator when rotating an operation shaft. With the goal.
[0021]
[Means for Solving the Problems]
In order to achieve the above object, the present invention has the following configuration.
[0022]
The invention according to claim 1 of the present invention has a circular opening whose peripheral lower surface is a spherical recess at the center of the upper bottom surface, has a rotating part portion and a central pressing switch at the center of the lower bottom surface, Four peripheral press switches at an angular interval of 90 ° from the center of the center, and projecting downward from the upper bottom surface along one of the center lines connecting the two peripheral press switches facing each other outside the spherical recess A box-shaped case having two bosses and a spherical protrusion at the center of the top surface having a circular through hole at the center is a circular opening of the box-shaped case Abutting so as to be able to rotate and tilt against the spherical recess on the lower surface In addition to engaging, there are two elongated holes on the outside of this spherical protrusion, each engaging two bosses, and four protrusions on the lower surface of the outer periphery, each abutting against the pressing part of the peripheral pressing switch. In addition, the periphery of the circular through hole on the lower surface of the spherical protrusion is tilted and moved up and down to the polygonal through hole of the rotating body of the rotating body part and the polygonal flat part whose outer periphery is a wall part. Although it is possible to engage with each other, the lower surface abuts against the pressing part of the central pressing switch, the lower end has a polygonal sphere with a polygonal horizontal section, and a circle extending upward from this sphere The shaft part of the shaft is engaged with the circular through-hole of the drive body so as to rotate and move up and down and protrude upward, and the upper surface of the flange part provided in the middle of the shaft part is attached upward by the central pressing switch. Due to the force, the outer shape is the same shape as the flat part of the drive body. A composite operation type electronic component composed of an operation shaft that is in elastic contact with the flat portion of the drive body with a friction plate sandwiched between the two bosses of the drive body. Since it is engaged with the long hole, the drive body is less likely to move in the rotational direction when the operation shaft is rotated, and the upper surface of the flange portion and the polygonal flat surface portion of the drive body are flexible during the rotation operation. The friction plate is in contact with the same shape of the friction plate, and the friction plate is fitted in the wall portion on the outer periphery of the flat portion so that it does not rotate. The rotary part can be operated without feeling uncomfortable, making it difficult for the person who operates the rattle due to the gap between the engaging part and the polygonal through-hole of the rotating body to operate, and to operate the operating shaft. Tilt up and press the peripheral press switch It has the effect that the composite operation type electronic component can be operated smoothly, respectively can be realized a central push switch to work.
[0023]
According to a second aspect of the present invention, in the first aspect of the present invention, the engaging portions of the two bosses protruding from the upper bottom surface of the box-shaped case and the two long holes of the driving body are in a direction along the center line. There is a large gap on both sides of the boss, and in the direction perpendicular to the center line, there is a slight gap on the base side of the boss and a gradually larger gap toward the tip side. When the driver is restricted from moving in the rotational direction at the slight gap on the boss root side, and the operation shaft is tilted in the direction of the center line connecting the two bosses, the direction of the large gap on both sides of the boss When the boss moves in the long hole and tilts the drive body and tilts in the direction perpendicular to the center line connecting the two bosses, the tip side where the gap gradually increases with the base side of the boss as a fulcrum The effect of being able to move and tilt the driver Having.
[0024]
According to a third aspect of the present invention, in the first aspect of the present invention, the flange portion is arranged together with the central pressing switch so that the upper surface of the flange portion of the operating shaft sandwiches the friction plate and elastically contacts the flat portion of the driving body. The spring body biased upward is disposed around the operation shaft below the flange portion, and in addition to the action of the invention according to claim 1, the vertical position of the scanning shaft at the neutral position is stabilized. At the same time, the frictional force of the friction plate at the time of rotating the operation shaft is increased, and there is an effect that the rotational torque and the rotation feeling can be made more stable.
[0025]
According to a fourth aspect of the present invention, in the first aspect of the present invention, the rotating component portion and the central pressing switch are integrated and formed in advance as individual electronic components. Since the most complicated portion of each functional component to be constructed can be assembled and inspected in advance, it has the effect of facilitating the assembly of the composite operation type electronic component as a whole.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to FIGS.
[0027]
In addition, the same code | symbol is attached | subjected to the part of the structure same as the structure demonstrated in the term of the prior art, and detailed description is abbreviate | omitted.
[0028]
(Embodiment 1)
The invention according to the first to third aspects of the present invention will be described using the first embodiment.
[0029]
FIG. 1 is a front sectional view of a composite operation type electronic component according to a first embodiment of the present invention, FIG. 2 is an exploded perspective view, and as shown in FIG. Same as described.
[0030]
That is, 1 is a U-shaped cover made of a metal plate having a circular opening 1A at the center of the upper bottom, and a spherical recess 21 covering the lower surface around the opening 1A on the inner side of the upper bottom is resin between both sides. A box-shaped case is formed by holding a rectangular frame body 2 made of metal and a first contact board 3 arranged so as to close the lower surface thereof.
[0031]
A central hole 4A and four through holes 4B to 4E are provided in the intermediate wall portion of the frame body 2, and the central fixed contact 3A and the corresponding holes 4A to 4E are provided on the first contact board 3 in correspondence with the holes 4A to 4E. Peripheral fixed contacts 3B to 3E (3C and 3E are not shown) are provided at an equal distance of 90 ° from the center, and a rubber sheet 5 is provided between the frame 2 and the first contact board 3. And the second contact substrate 6 are sandwiched, and the rubber sheet 5 has dome-shaped portions 5A and 5B-5E (5C, 5E is provided at a position corresponding to the central fixed contact 3A and the peripheral fixed contacts 3B to 3E to form the central press switch 7A and the peripheral press switches 7B to 7E (7C and 7E are not shown). is doing.
[0032]
The second contact board 6 is fitted into the four through holes corresponding to the dome-shaped parts 5B to 5E, and the rubber sheet 5 is sandwiched between the second contact board 3 and the elastic contact made of an elastic metal thin plate. It has contacts 8A and 8B, and is insert-molded and fixed to the lower surface of the resin-made rotating body 9 rotatably held by the center hole 4A of the intermediate wall portion of the frame body 2 and the center hole 6A of the second contact board 6. The elastic contact points 8A and 8B are elastically contacted with the signal contact plate 10 thus formed to form a rotating part.
[0033]
The second contact board 6, the rubber sheet 5, the first contact board 3 and the rotating body 9, and the pressing switch constituted by these members and the rotating component unit disposed below the frame body 2 are the conventional ones. Since it is exactly the same as in the case of the technology, in FIG. 2, these members are shown in a combined state.
[0034]
Reference numeral 22 denotes a rod-shaped operation shaft, and a lower end thereof is a polygonal sphere 22A having a horizontal section at the center which is a regular hexagon, and can move up and down and tilt in a regular hexagonal through hole 9A at the center of the rotating body 9. Are engaged so as to rotate together, and the upper surface of the dome-shaped portion 5A of the central pressing switch 7A is in contact with the upper surface of the dome-shaped portion 5A to be biased upward. It passes through the central hole 23A and protrudes upward from the opening 1A of the cover 1.
[0035]
Further, the drive body 23 has a spherical protrusion 23B having the same center as the polygonal sphere 22A at the lower end of the operation shaft 22 at the center of the upper surface of the flat plate portion 23C, and this spherical protrusion 23B is an opening of the cover 1. 1A is urged and supported upward by a large-diameter flange portion 22C in the middle of the shaft portion 22B penetrating the central hole 23A so as to be able to rotate and tilt against the spherical concave portion of the spherical concave portion 21 on the lower surface around 1A. Further, four protrusions 24A to 24D (24D not shown) are provided below the flat plate portion 23C of the driving body 23, and the lower ends thereof are dome-shaped portions 5B to 5E of the peripheral pressure switches 7B to 7E, respectively. As in the case of the prior art, the driving body 23 and the operation shaft 22 are kept in a neutral position by abutting on the upper surface of the actuator.
[0036]
However, the flat plate portion 23C outside the spherical protrusion 23B of the driving body 23 has two elongated holes along the center line connecting the two protrusions 24A and 24C opposed to the center, that is, the two peripheral pressing switches 7B and 7D. 25A and 25B are provided, and the two bosses 26A and 26B projecting downward from the flat surface portion of the spherical recess 21 forming the upper bottom surface of the box-type case are engaged with each other, and the middle of the shaft portion 22B of the operation shaft 22 is engaged. A flat plate ring-shaped friction plate 27 is sandwiched between the upper surface of the flange portion 22C and the flat surface portion 23D of the lower surface of the spherical protrusion 23B of the driving body 23.
[0037]
FIG. 3, which is a cross-sectional view taken along the line P-P in FIG. 1, shows a state where the two elongated holes 25 A, 25 B and the two bosses 26 A, 26 B are engaged and the friction plate 27 is attached.
[0038]
As shown in the figure, the two bosses 26A and 26B are rods having a circular cross section, and are engaged with the substantially central portions in the longitudinal direction of the long holes 25A and 25B, and connect the two peripheral pressing switches 7B and 7D. There is a large margin on both sides in the direction along the center line, and there is a slight gap in the direction perpendicular to the center line.
[0039]
As shown in FIG. 1, the diameters of the two bosses 26A and 26B have a constant size from the portion engaging with the upper ends of the long holes 25A and 25B, and gradually become narrower from here to the tip side. It has become.
[0040]
The flat ring-shaped friction plate 27 is formed of a flexible material such as a rubber plate, a felt, or an elastic resin plate, and the hexagonal outer diameter is a flat portion 23D of the driver 23 as shown in FIG. The shaft portion 22B of the operation shaft 22 passes through the center circular hole while being fitted into the surrounding hexagonal wall portion.
[0041]
The composite operation type electronic component according to the present embodiment is configured as described above. Next, the operation thereof will be described.
[0042]
First, in the neutral position shown in FIG. 1, when the shaft portion 22B of the operation shaft 22 is horizontally rotated, the rotating body 9 engaged so as to rotate together with the polygonal sphere 22A at the lower end is rotated, and the lower surface thereof The elastic contacts 8A and 8B slide elastically on the signal contact plate 10 to generate an electrical signal as a rotating part.
[0043]
At this time, since the operating shaft 22 is urged upward by the dome-shaped portion 5A of the central pressing switch 7A, the upper surface of the large-diameter flange portion 22C is connected to the flat portion 23D of the driver 23 via the friction plate 27. The friction plate 27 does not rotate because the outer diameter of the friction plate 27 is fitted in the wall portion around the flat portion 23D, and is stable by sliding between the upper surface of the flange portion 22C and the friction plate 27. It rotates smoothly with the generated torque.
[0044]
This makes it difficult for the operating person to feel the backlash due to the gap between the engaging portions of the polygonal sphere 22A of the operating shaft 22 and the through hole 9A of the rotating body 9.
[0045]
Further, the driving body 23 also tries to rotate by the frictional force between the upper surface of the flange portion 22C of the operation shaft 22 and the friction plate 27, but the two projecting from the spherical recess body 21 into the two long holes 25A and 25B of the flat plate portion 23C. Since the two bosses 26A and 26B are engaged with each other with a slight gap, the driving body 23 does not move in the rotational direction.
[0046]
Therefore, the rotating component part can be operated without feeling uncomfortable in the hand of the person who operates the composite operation type electronic component.
[0047]
Next, when a lateral pressing force is applied to the shaft portion 22B of the operating shaft 22 and the tilting operation is performed in the direction indicated by the arrow X in FIG. 4, the operating shaft 22 rotates clockwise about the polygonal sphere 22A at the lower end. Accordingly, the driving body 23 engaged in the middle of the shaft portion 22B rotates and tilts in the Z direction, so that the lower protrusion 24A moves the dome-shaped portion 5B of the peripheral pressing switch 7B downward. The movable contact 5G comes into contact with the peripheral fixed contact 3B to turn on the peripheral pressing switch 7B.
[0048]
Thereafter, when the pressing force applied to the shaft portion 22B is removed, the dome-shaped portion 5B is restored to its original shape by its elastic restoring force, and the protrusion 24A is pushed back, so that the driving body 23 and the operating shaft 22 are restored. 1 Return to the neutral position.
[0049]
At this time, the two bosses 26A and 26B engaged with the long holes 25A and 25B of the flat plate portion 23C of the driving body 23 are positioned in the direction where there is a large margin in the long holes 25A and 25B. 26A guides the boss 26B to the tip side, and the protrusion 24A of the driving body 23 guides the upper surface of the dome-shaped portion 5B of the peripheral pressing switch 7B to be accurately pushed while moving to the base side.
[0050]
When the tilting operation is performed by applying a pressing force to the shaft portion 22B in a lateral direction perpendicular to the X direction, the long holes 25A and 25B and the bosses 26A and 26B are engaged in the neutral position shown in FIG. In this state, as shown in the side partial sectional view of FIG. 5, the driving body 23, that is, the long holes 25A and 25B is inclined to turn on the peripheral pressing switch 7C or 7E (not shown).
[0051]
In this case, since the tip ends of the two bosses 26A and 26B are narrowed, the long holes 25A and 25B of the drive body 23 can be inclined without difficulty, and the protrusion 24B of the drive body 23 can be tilted in this direction. Alternatively, 24D can accurately press the upper surface of the dome-shaped portion 5C or 5E of the peripheral pressing switch 7C or 7E.
[0052]
Further, when a downward pressing force is applied to the shaft portion 22B of the operating shaft 22 and a downward pressing operation is performed as indicated by an arrow V in FIG. 6, the lower surface of the polygonal sphere 22A at the lower end of the operating shaft 22 is moved to the center pressing switch 7A. When the dome-shaped portion 5A is pushed downward and elastically deformed, the movable contact 5F comes into contact with the central fixed contact 3A to turn on the central pressing switch 7A, and when the pressing force applied to the shaft portion 22B is removed, the dome-shaped portion 5A becomes While returning to the original shape by the elastic restoring force, the operating shaft 22 is pushed back upward to return to the original neutral position in FIG.
[0053]
During the pressing operation of the operating shaft 22, the driving body 23 has the lower four protrusions 24A to 24D in contact with and supported by the upper surfaces of the dome-shaped portions 5B to 5E of the peripheral pressing switches 7B to 7E, and moves downward. Absent.
[0054]
FIG. 7 is a front sectional view showing another configuration of the composite operation type electronic component described above.
[0055]
That is, in contrast to what is shown in the front sectional view of FIG. 1, this is a coil spring 29 as a spring body that biases the flange portion 28A upward around the shaft portion 28B below the flange portion 28A of the operation shaft 28. Is arranged.
[0056]
This coil spring 29 is inserted between the lower surface of the flange portion 28A and the intermediate wall 30A of the frame body 30 so that the upper surface of the flange portion 28A sandwiches the friction plate 27 and elastically contacts the flat portion 31A of the drive body 31. With such a configuration, the vertical position of the operation shaft 28, that is, the shaft portion 28B, in the neutral position is more stable than that shown in FIG. The frictional force of the friction plate 27 at the time increases, and the rotational torque and the rotational feel can be made more stable.
[0057]
As described above, according to the present embodiment, since the bosses 26A and 26B protruding from the upper bottom surface of the box-type case are engaged with the two long holes 25A and 25B of the drive body 23, the operation shaft 22 is rotated. During the operation, the drive body 23 rarely moves in the rotation direction. During this rotation operation, the upper surface of the flange portion 22C and the drive body 23 Polygonal The flat portion 23D has flexibility. Same shape Bullet contact through the friction plate 27, And since the friction plate 27 is fitted so as not to rotate on the outer peripheral wall portion of the flat portion 23D, Smooth rotation with stable rotational torque Shi The ratchet due to the gap between the engaging part of the polygonal sphere 22A of the operating shaft 22 and the polygonal through hole 9A of the rotating body 9 becomes difficult to feel to the hand of the manipulating person, and the rotating part part without feeling uncomfortable Further, it is possible to realize a composite operation type electronic component that can smoothly operate the peripheral pressing switches 7B to 7E by tilting the operating shaft 22 and smoothly operating the central pressing switch 7A by pressing the operating shaft 22. Is.
[0058]
(Embodiment 2)
A second embodiment of the present invention, particularly the invention described in claim 4, will be described.
[0059]
In addition, the same code | symbol is attached | subjected to the part of the same structure as Embodiment 1, and detailed description is abbreviate | omitted.
[0060]
FIG. 8 is a front sectional view of a composite operation type electronic component according to the second embodiment of the present invention. As shown in FIG. 8, the composite operation type electronic component according to this embodiment is the same as that of the first embodiment. The difference is that what is formed in advance as individual electronic components is used as each functional component portion.
[0061]
That is, in Embodiment 1, the shaft 22B, that is, the rotating part directly operated by the operation shaft 22 and the central pressing switch are shown in FIG. 9 disclosed in Japanese Patent Laid-Open No. 2000-48681 proposed by the present applicant. As shown in the cross-sectional view, the operation shaft 32 having the flange portion 32B in the middle is moved up and down a polygonal sphere 32A having a regular hexagonal cross section into a hexagonal through hole 33A in the center of the rotating body 33 holding the signal contact plate. Individual rotation with a push switch, which can be tilted but is inserted so as to rotate together, with its lower end abutting against the upper surface of the drive plate 35 of the pressure switch 34 disposed below the rotating body 33. The mold electronic component 36 is formed in advance and a performance inspection is also performed.
[0062]
Then, as shown in FIG. 8, the individual rotary electronic components 36 are arranged at predetermined positions on the printed wiring board 38 together with the four individual pressing switches 37, and the peripheral lower surface becomes a spherical concave portion at the upper part thereof. It is covered with a case 39 having a circular opening 39A and two bosses 39B projecting downward, and a drive body 40 and a friction plate 27 similar to those in the first embodiment are disposed inside.
[0063]
The composite operation type electronic component according to the present embodiment formed in this way is assembled and inspected in advance by combining the rotating component portion, which is the most complex among the functional component portions, which are constituent elements, with the central push switch. Therefore, it is possible to easily assemble the composite operation type electronic component as a whole and to perform the same operation as that according to the first embodiment.
[0064]
In the above description of the first and second embodiments, the cross-sectional shape of the polygonal sphere 22A of the operation shaft 22 or the polygonal sphere 32A of the operation shaft 32 and the through-hole 9A or rotation of the rotating body 9 with which these engage. Although the through holes 33A of the body 33 are all regular hexagons, they may be regular octagons or the like.
[0065]
【The invention's effect】
As described above, according to the present invention, the boss protruding from the upper bottom surface of the box-type case is engaged with the two long holes of the drive body, and the drive body can move in the rotation direction when the operation shaft is rotated. And when rotating, the upper surface of the flange and the drive body Polygonal The flat part has flexibility Same shape Bullet contact through the friction plate, And since the friction plate is inserted into the wall portion on the outer periphery of the flat portion so as not to rotate, Smooth rotation with stable rotational torque Shi The backlash caused by the gap between the engagement part between the polygonal sphere of the operating shaft and the through hole of the rotating body is less likely to be felt by the hand of the operator, and the rotating part is operated without feeling uncomfortable, and the operating shaft An advantageous effect is obtained in that a composite operation type electronic component can be realized in which the peripheral press switch is smoothly operated by tilting and the central press switch is smoothly operated by pressing.
[Brief description of the drawings]
FIG. 1 is a front sectional view of a composite operation type electronic component according to a first embodiment of the present invention.
FIG. 2 is an exploded perspective view of the same.
3 is a cross-sectional view taken along line P-P in FIG.
FIG. 4 is a front sectional view of the tilting operation.
5 is a partial cross-sectional side view of the boss center line when tilting in a direction perpendicular to the case of FIG. 4;
FIG. 6 is a front sectional view at the time of the pressing operation.
FIG. 7 is a front sectional view of a composite operation type electronic component having the other configuration.
FIG. 8 is a front sectional view of a composite operation type electronic component according to a second embodiment of the present invention.
FIG. 9 is a front sectional view of the individual rotary electronic component.
FIG. 10 is a front sectional view of a conventional composite operation type electronic component.
FIG. 11 is an exploded perspective view of the same.
FIG. 12 is a front sectional view of the tilting operation.
FIG. 13 is a front sectional view of the same pressing operation.
[Explanation of symbols]
1 Cover
1A opening
2,30 frame
3 First contact board
3A Center fixed contact
3B-3E Peripheral fixed contact
4A, 6A, 23A Center hole
4B-4E, 9A, 33A Through hole
5 Rubber sheet
5A-5E Dome-shaped part
5F-5J movable contact
6 Second contact board
7A Center push switch
7B-7E Peripheral pressing switch
8A, 8B elastic contact
9,33 Rotating body
10 Signal contact plate
21 Spherical recess
22, 28, 32 Operation axis
22A, 32A polygonal sphere
22B, 28B Shaft
22C, 28A, 32B Flange
23, 31, 40 Driver
23B Spherical protrusion
23C flat plate
23D, 31A Plane section
24A-24D Protrusion
25A, 25B long hole
26A, 26B, 39B Boss
27 Friction plate
29 Coil spring
30A Intermediate wall
34 Press switch
35 Drive plate
36 Rotating electronic components
37 Individual push switch
38 Printed circuit board
39 cases
39A Circular opening

Claims

A circular opening having a spherical recess on the lower surface is provided at the center of the upper bottom surface, and a rotating component portion and a central pressing switch are provided at the center of the lower bottom surface. A box shape having a peripheral press switch and two bosses projecting downward from the upper bottom surface along either one of the center lines connecting the two peripheral press switches facing each other outside the spherical recess A spherical protrusion at the center of the upper surface having a circular through-hole at the center is in contact with and engages with a spherical recess on the lower surface around the circular opening of the box-type case so as to be rotatable and tiltable. On the outer side, the two bosses have two long holes to be engaged with each other, and further have four protrusions on the lower surface of the outer periphery, which respectively contact the pressing parts of the four peripheral pressing switches, and the spherical protrusions. The above circular penetration on the bottom The periphery of the hole can be tilted and moved up and down in the polygonal through-hole of the rotating part of the rotating part part and the driving body which is a polygonal flat part whose outer periphery is a wall part. The lower surface has a polygonal sphere with a horizontal cross section that is in contact with the pressing portion of the central pressing switch at the lower end, and the circular shaft portion extending upward from the sphere has the driving shaft. The upper surface of the flange portion provided in the middle of the shaft portion is projected upward by engaging with the circular through hole of the shaft, and the outer shape of the upper surface of the flange portion provided by the central pressing switch is increased. It comprises an operating shaft that is elastically in contact with the flat surface portion of the drive body with a flexible friction plate having the same shape as the flat surface portion of the drive body interposed therebetween, so that the friction plate does not rotate into the wall portion. Composite operation type electronic component characterized by being embedded .

There are large gaps on both sides of the boss in the direction along the center line between the two bosses protruding from the top bottom surface of the box-type case and the two long holes of the drive body, and in the direction perpendicular to the center line 2. The composite operation type electronic component according to claim 1, wherein a small gap is formed on the base side of the boss, and the gap is gradually increased toward the tip side of the boss.

A spring body that urges the flange portion upward together with a central pressing switch so that the upper surface of the flange portion of the operation shaft sandwiches the friction plate and elastically contacts the flat portion of the drive body. The composite operation type electronic component according to claim 1, which is disposed around.

The composite operation type electronic component according to claim 1, wherein the rotary component portion and the central pressing switch are integrated and formed in advance as individual electronic components.