JP4168841B2 - Piezoelectric light emitting fan - Google Patents

Description

【００４９】
［圧電発光応援グッズ］
図１０〜図１３は、人が振ったり叩いたりして応援に使用するものであって空洞部３４、３４ａ、３４ｂを内部に有する本体部３２、３２ａ、３２ｂを備える圧電発光応援グッズ３０の実施形態をそれぞれ示すものである。
【００５０】
図１０は、バット型の圧電発光応援グッズ３０を示すものであり、前記圧電素子１６を振動板３６の一方端側に片寄らせて取り付けて成る圧電振動ユニット３５を、前記本体部３２の空洞部３４内に収納して、当該圧電振動ユニット３５の一方端部（圧電素子１６を片寄らせた側の端部）を固定部３８で固定している。振動板３６は、弾性を有しており、この例では短冊状をしている。この振動板３６を、導電性の金属板で形成して、圧電素子１６等の電気的接続に兼用しても良い。圧電発光応援グッズ３０では、固定部３８と圧電素子１６の端部とは少し離しておくのが好ましい。圧電素子１６に強い屈曲力が加わって損傷するのを防止するためである。他の実施形態においても同様である。
【００５１】
また、前記圧電振動ユニット３５の矢印Ｂに示す振動方向（即ち振動板３６の板厚方向の振動方向）の両側に、当該圧電振動ユニット３５の過大な振動を防止するストッパー４０を当該圧電振動ユニット３５から離してそれぞれ設けている。この離す距離は、圧電発光応援グッズ３０を振ったり叩いたりした瞬間の後に圧電振動ユニット３５が自由振動（慣性振動）する当該振動を阻害しない距離にしている。後述する他の実施形態においても同様である。各ストッパー４０は、この例では空洞部３４内に突出させている。
【００５２】
更に、圧電素子１６から出力される電力によって発光する発光素子１８を、その光が外から見えるように本体部３２に設けている。この発光素子１８の数、構成、配線の仕方等は、前記と同様である。また、発光素子１８の一部分または全部を、本体部３２内に埋め込んでも良い。但し、光は外に出るようにしておく。このようにすると、発光素子１８が外れたり壊れたりしにくくなる。これらの事項は、後述する他の実施形態においても同様である。
【００５３】
この圧電発光応援グッズ３０における作用を説明すると、スポーツの観戦等の応援時に、この圧電発光応援グッズ３０を取っ手３１の部分で手に持って振ったり叩いたりすると、圧電振動ユニット３５が振動し、その振動による力が圧電素子１６に加わって圧電素子１６が発電し、その電力によって発光素子１８が発光する。この発光によって、応援時の連帯感、満足感等を一層高めることができる。
【００５４】
また、この圧電振動ユニット３５では、圧電素子１６を振動板３６の一方端側（固定端側）に片寄らせて取り付けており、圧電素子１６を取り付けている付近が主に屈曲して圧電素子１６に振動力を効率良く加えることができるので、圧電素子１６の発電エネルギーを大きくして発光素子１８の発光量を大きくすることができる。
【００５５】
しかも、人が応援に熱中する等して本体部３２を強く振ったり強く叩いたりしても、その瞬間の圧電振動ユニット３５の過大な振動がストッパー４０によって阻止されるので、圧電振動ユニット３５が壊れにくくなる。
【００５６】
また、圧電発光応援グッズ３０を振ったり叩いたりした瞬間の後は、圧電振動ユニット３５は自由振動するので、振動持続時間が長く、従って視覚的に発光素子１８の発光量が多く見えるという効果も得られる。
【００５７】
図１４に示す実施形態のように、上記振動板３６の圧電素子１６を設けた部分に括れ（くびれ）２６を設けても良い。そのようにすれば、圧電振動ユニット３５が振動する際に、圧電素子１６の部分に応力が集中するので、圧電素子１６の発電エネルギーをより増大させて、発光素子１８の発光量をより増大させることができる。
【００５８】
また、図１０等に示す実施形態のように、圧電振動ユニット３５を構成する振動板３６の他方端である自由端付近に重り４２を設けても良い。そのようにすれば、重り４２の付加によって圧電振動ユニット３５の振動周期が大きくなると共に振動持続時間が増大するので、発光素子１８の発光時間が増大し、それによって視覚的に発光素子１８の発光量が多く見えるという効果が増大する。
【００５９】
図１１は、メガホン型の圧電発光応援グッズ３０を示すものであり、その構造および作用効果は図１０の圧電発光応援グッズ３０とほぼ同様であるので、重複説明を省略する。
【００６０】
図１２は、２分割メガホン型の圧電発光応援グッズ３０を示すものであり、図１０および図１１の実施形態との相違点を主体に説明すると、この圧電発光応援グッズ３０は、空洞部３４ａ、３４ｂをそれぞれ有する二つの本体部３２ａ、３２ｂが軸部４６で矢印Ｃに示すように開閉可能に結合された構造をしている。この圧電発光応援グッズ３０を取っ手３１の部分で手に持って振ったり叩いたりして、両本体部３２ａ、３２ｂを矢印Ｃ方向に移動させて互いに衝突させて音を出して応援に供する。
【００６１】
この実施形態の場合、一方の本体部３２ａの空洞部３４ａ内に、前記圧電振動ユニット３５、ストッパー４０等を設けている。但し、一方の（この例では内側壁面３３ａに近い内側の）ストッパー４０は、突出したものを設けずに、図１３に示す実施形態のように、本体部３２ａの内側壁面３３ａに兼ねさせても良い。また、両本体部３２ａ、３２ｂが閉じたときに圧電振動ユニット３５の先端部が両本体部３２ａ、３２ｂの内側壁面に当たるのを防止するために、この例のように、両内側壁面３３ａ、３３ｂに開口部４４ａ、４４ｂをそれぞれ設けておいても良い。また、発光素子１８は両方の本体部３２ａ、３２ｂに設けても良いし、一方の本体部にのみ設けても良い。
【００６２】
図１３は、拍子体（ひょうしたい）型の圧電発光応援グッズ３０を示すものであり、図１２の実施形態との相違点を主体に説明すると、この圧電発光応援グッズ３０は、二つの本体部３２ａ、３２ｂが固定部３８で結合されており、本体部３２ａ、３２ｂの部材の弾性によって矢印Ｃに示すように開閉する構造をしている。両本体部３２ａ、３２ｂは手型をしていても良い。この圧電発光応援グッズ３０を取っ手３１の部分で手に持って振ったり叩いたりして、両本体部３２ａ、３２ｂを矢印Ｃ方向に移動させて互いに衝突させて音を出して応援に供する。その他の点は図１２の実施形態と同様であるので重複説明を省略する。
【００６３】
図１０に示した圧電発光応援グッズ３０に一定の振動エネルギーを与えた際の圧電素子１６の発電電力量（電圧×電流×時間）を測定した。これを、圧電素子１６が一つのユニモルフ構造の場合（実施例４）、圧電素子１６が二つのバイモルフ構造の場合（実施例５）、更に振動板３６に括れ２６を設けた場合（実施例６）について行った。その発電電力量の比率を表２に示す。後の実施例ほど発電電力量が大きくなることが確かめられた。なお、後述する圧電発光表示グッズ５０においても、表２とほぼ同様の結果が得られた。
【００６４】
【表２】

【００６５】
また、図１０に示した圧電発光応援グッズ３０に一定の衝撃力を与えた後に圧電振動ユニット３５を自由振動させたときの振動持続時間を、重り４２の重量を変えて測定した結果を図２２に示す。重り４２を重くすることによって振動持続時間が増大し、０．２秒〜０．６秒という長い振動持続時間、ひいては発光素子１８の発光時間を実現することも可能であることが分かる。同様の結果が、図１１〜図１３に示した圧電発光応援グッズ３０においても得られることは、容易に理解できよう。
【００６６】
［圧電発光表示グッズ］
図１５は、発光素子が虎の絵柄の目の部分を構成している圧電発光表示グッズの例を示す斜視図である。この圧電発光表示グッズ５０は、表面に虎の絵柄５６が表示されていて当該絵柄５６を避けた所に（この例では側面に）開口部５４を有する容器５２を備えている。そして、圧電素子１６を振動板３６の一方端側に片寄らせて取り付けて成る前述したような圧電振動ユニット３５をこの容器５２内に収納して、容器５２内に設けた固定部３８で圧電振動ユニット３５の一方端部（圧電素子１６を片寄らせた側の端部）を固定すると共に、当該圧電振動ユニット３５の振動板３６の他方端部を開口部５４を通して容器５２外に出して手押し部５８を形成している。更に、圧電素子１６から出力される電力によって発光する複数の（この例では２個の）発光素子１８を、絵柄５６の一部を構成するように、より具体的には虎の目の部分を構成するように配置している。
【００６７】
この圧電発光表示グッズ５０によれば、人が手押し部５８を矢印Ｄに示す板厚方向に押して圧電振動ユニット３５に振動または衝撃を与えることによって、圧電振動ユニット３５が屈曲または自由振動し、その振動等によって圧電素子１６から電力が出力されて、虎の目を構成するように配置されている２個の発光素子１８が発光し点滅するので、即ち虎の目が点滅するので、これが虎の絵柄５６の印象を増強することになり、視覚的な美しさの演出効果を出すことができる。換言すれば、珍しい興味深い表示効果を出すことができ、使って楽しいものとなる。
【００６８】
図１６に、上記２個の発光素子１８を発光ダイオードで構成したときの配線図の例を示す。ここでは、２個の発光ダイオード１８を互いに同方向に直列接続している。このようにすると、上記虎の目が同時に点滅する。
【００６９】
容器５２の表面の絵柄５６や発光素子１８の数等は、図１５の実施形態以外のものでも良い。その例を以下に説明する。
【００７０】
図１７の圧電発光表示グッズ５０は、花火の絵柄５６の一部を構成するように、複数の発光素子を、第１の（内側の）グループを構成する発光素子１８ｍと、第２の（外側の）グループを構成する発光素子１８ｎとに分けて配置した実施形態である。
【００７１】
この圧電発光表示グッズ５０も、手押し部５８を上記のように操作することによって、圧電素子１６から電力が出力されて複数の発光素子１８ｍ、１８ｎが発光し点滅するので、これが花火の絵柄５６の印象を増強することになり、視覚的な美しさの演出効果を出すことができる。換言すれば、珍しい興味深い表示効果を出すことができ、使って楽しいものとなる。
【００７２】
図１９に、上記複数の発光素子１８ｍ、１８ｎを発光ダイオードで構成したときの配線図の例を示す。ここでは、第１のグループを構成する複数の発光ダイオード１８ｍを互いに同方向に直列接続し、第２のグループを構成する複数の発光ダイオード１８ｎを互いに同方向に直列接続し、かつ両発光ダイオード列を互いに逆向きに並列接続している。このような構成を図１７の実施形態に採用すると、内側のグループの発光素子（発光ダイオード）１８ｍと外側のグループの発光素子（発光ダイオード）１８ｎとが交互に点滅するので、絵柄５６の動きの表現を付加することができる。即ち、花火が次々に広がって行くような動きを表現することができる。従って、視覚的な美しさの演出効果をより増大させることができる。
【００７３】
なお、一般的に圧電素子１６の出力インピーダンスは高いので、例えば図１９に示す例のように発光素子（発光ダイオード）１８ｍまたは１８ｎの直列数を増大しても、各発光素子１８ｍ、１８ｎの発光特性を低下させないことが確かめられた。これは、複数の発光素子を並列接続するよりも直列接続する方が、負荷インピーダンスが高くなって、圧電素子１６の出力インピーダンスとの整合が取りやすくなるからである。実験によれば、２直列から２５直列程度まで問題なく適用できることが分かった。
【００７４】
図１８の圧電発光表示グッズ５０は、大文字の送り火の絵柄５６ａ、５６ｂの一部を構成するように、複数の発光素子を、大の文字の絵柄５６ａの一部を構成するグループの発光素子１８ｍと、東山の絵柄５６ｂの一部を構成するグループの発光素子１８ｎとに分けて配置した実施形態である。
【００７５】
この圧電発光表示グッズ５０も、手押し部５８を上記のように操作することによって、圧電素子１６から電力が出力されて発光素子１８ｍ、１８ｎが発光し点滅するので、これが大文字の送り火の絵柄５６ａ、５６ｂの印象を増強することになり、視覚的な美しさの演出効果を出すことができる。換言すれば、珍しい興味深い表示効果を出すことができ、使って楽しいものとなる。
【００７６】
この実施形態の場合も、上記複数の発光素子１８ｍ、１８ｎを発光ダイオードで構成して、図１９に示す接続を採用しても良い。そのようにすると、大の文字の絵柄５６ａのグループの発光素子（発光ダイオード）１８ｍと、東山の絵柄５６ｂのグループの発光素子（発光ダイオード）１８ｎとが交互に点滅するので、絵柄に動きの表現を付加することができる。従って、視覚的な美しさの演出効果をより増大させることができる。
【００７７】
上記各圧電発光表示グッズ５０においても、前述したように、圧電振動ユニット３５の振動板３６の圧電素子１６を設けた部分に括れ２６（図１４参照）を設けておいても良く、そのようにすれば、圧電素子１６の発電エネルギーをより増大させて発光素子１８の発光量をより増大させることができる。以下に述べる各圧電発光表示グッズ６０においても同様である（図２１参照）。
【００７８】
なお、上記各圧電発光表示グッズ５０における複数の発光素子１８、１８ｍ、１８ｎの一部または全部を、それが発光したときに絵柄５６、５６ａ、５６ｂの一部を構成するように見えるように配置しておいても良い。例えば、容器５２の絵柄５６、５６ａ、５６ｂを表示している面を透明または半透明にして、当該面の裏側近傍に発光素子１８、１８ｍ、１８ｎを配置しておいても良い。
【００７９】
図２０は、揺動体に取り付けた圧電発光表示グッズの一実施形態を示す斜視図である。この圧電発光表示グッズ６０は、図１５に示したような圧電振動ユニット３５を容器５２内に収納固定し、その圧電振動ユニット３５を構成する振動板３６の一方端部（手押し部５８に相当する端部）を、自然の力によって揺動する揺動体６２に取り付けた構造をしている。容器５２には、圧電振動ユニット３５の圧電素子１６（図に表れていない。図１５等参照）から出力される電力によって発光する複数の発光素子１８を設けている。この圧電発光表示グッズ６０では、容器５２の表面に絵柄を表示しておくか否か、発光素子１８を当該絵柄の一部を構成するように配置するか否かは、任意である。
【００８０】
揺動体６２は、例えば、風の流れや水の流れ等の自然の力によって揺動するものである。より具体例を挙げれば、木の枝や吹き流し等である。
【００８１】
この圧電発光表示グッズ６０によれば、揺動体６２が風の流れや水の流れ等の自然の力によって、矢印Ｅに示す振動板３６の板厚方向に揺動すると、その揺動に応じて圧電振動ユニット３５に振動力が加わって、その力によって圧電素子１６から電力が出力されて発光素子１８が発光し点滅するので、視覚的な美しさの演出効果を出すことができる。換言すれば、不思議な興味深い表示効果を出すことができる。例えば、蛍が点滅しているような効果を出すことができる。
【００８２】
図２１に示す圧電発光表示グッズ６０のように、上記容器５２を設けずに、圧電振動ユニット３５を構成する振動板３６の一方端部を揺動体６２に取り付け、振動板３６の他方端部付近に発光素子１８を取り付けても良い。このようにすれば、構造を簡素化することができる。この圧電発光表示グッズ６０における作用効果は、図２０のものとほぼ同様であるのでここでは重複説明を省略する。
【００８３】
また、上記各圧電発光表示グッズ６０を構成する複数の発光素子１８を発光ダイオードで構成して、それを図１９に示したように二つのグループに分けて接続しても良く、そのようにすれば、揺動体６２が揺動したときに二つのグループの発光素子１８を交互に発光させることができるので、立体感を醸し出す等のより効果的な演出効果を出すことができる。
【００８４】
【発明の効果】
この発明は、上記のとおり構成されているので、次のような効果を奏する。
【００８６】
請求項１、２に記載の発明によれば、柄を筒状の取っ手内に揺動可能に収納しており、しかも少なくとも柄がプラスチック製のうちわは、扇いだときに、柄が竹製や木製の場合と違って、取っ手内において柄の固定部と中央部との間付近が大きく撓んで変形する。そこに圧電素子の少なくとも一部分が位置するように設けているので、圧電素子の発電エネルギーを大きくして発光素子の発光量を大きくすることができる。
【００８７】
しかも、柄を筒状の取っ手内に揺動可能に収納していて、扇ぐときの柄の振動（揺動）の支点が固定部によって一義的に決まり、取っ手を持つ位置には左右されないので、うちわを扇ぐときの力を圧電素子に効率良く伝えることができる。その結果、圧電素子の発電エネルギーをより増大させて、発光素子の発光量をより増大させることができる。
【００８８】
また、取っ手の開口部は、うちわの振幅を制限するストッパーとして機能するので、人が過大な力で扇いだ場合でも、圧電素子の破損を防止することができる。
【００８９】
請求項３に記載の発明によれば、柄の圧電素子を設けた部分に括れ（くびれ）を設けたことによって、圧電発光うちわを扇ぐ際に、圧電素子の部分に応力が集中するので、圧電素子の発電エネルギーをより増大させて、発光素子の発光量をより増大させることができる、という更なる効果を奏する。
【図面の簡単な説明】
【図１】この発明に係る圧電発光うちわの一実施形態を示す正面図である。
【図２】ユニモルフ構造の圧電素子と発光素子との配線図の例を示す図である。
【図３】バイモルフ構造の圧電素子と発光素子との配線図の例を示す図である。
【図４】この発明に係る圧電発光うちわの他の実施形態を部分的に示す縦断面図であり、図１のＦ−Ｆ断面に相当する。
【図５】うちわの柄に括れを設けた例を部分的に示す正面図である。
【図６】この発明に係る圧電発光うちわの更に他の実施形態を部分的に示す正面図である。
【図７】発光素子として２個の発光ダイオードを設ける場合の配線図の例を示す図である。
【図８】発光素子として４個の発光ダイオードを設ける場合の配線図の例を示す図である。
【図９】発光素子として６個の発光ダイオードを設ける場合の配線図の例を示す図である。
【図１０】バット型の圧電発光応援グッズの一例を示す断面図である。
【図１１】メガホン型の圧電発光応援グッズの一例を示す断面図である。
【図１２】２分割メガホン型の圧電発光応援グッズの一例を示す断面図である。
【図１３】拍子体型の圧電発光応援グッズの一例を示す断面図である。
【図１４】振動板に括れを設けた例を部分的に示す平面図である。
【図１５】発光素子が虎の絵柄の目の部分を構成している圧電発光表示グッズの例を示す斜視図である。
【図１６】図１５の実施形態において発光素子として発光ダイオードを用いる場合の配線図の例を示す図である。
【図１７】発光素子が花火の絵柄の一部を構成している圧電発光表示グッズの例を示す平面図である。
【図１８】発光素子が大文字の送り火の絵柄の一部を構成している圧電発光表示グッズの例を示す平面図である。
【図１９】図１７および図１８の実施形態において発光素子として発光ダイオードを用いる場合の配線図の例を示す図である。
【図２０】揺動体に取り付けた圧電発光表示グッズの一実施形態を示す斜視図である。
【図２１】揺動体に取り付けた圧電発光表示グッズの他の実施形態を示す斜視図である。
【図２２】図１０に示す圧電発光応援グッズを構成する圧電振動ユニットを、重りの重量を変えて自由振動させた際の振動持続時間を測定した結果の一例を示すグラフである。
【符号の説明】
２ 圧電発光うちわ
４ 柄
８ 扇面
１０ 骨
１２ 要領域
１６ 圧電素子
１８ 発光素子
２０ 取っ手
２６ 括れ（くびれ）
３０ 圧電発光応援グッズ
３２、３２ａ、３２ｂ 本体部
３５ 圧電振動ユニット
３６ 振動板
４０ ストッパー
４２ 重り
５０ 圧電発光表示グッズ
５２ 容器
５４ 開口部
５６、５６ａ、５６ｂ 絵柄
５８ 手押し部
６０ 圧電発光表示グッズ
６２ 揺動体[0001]
BACKGROUND OF THE INVENTION
  The present invention relates to a piezoelectric light emitting device having a piezoelectric element that converts mechanical energy into electric energy and a light emitting element that emits light by electric power output from the piezoelectric element, and more specifically, a piezoelectric light emitting device.AlligatorConcerning.
[0002]
[Prior art]
A round fan provided with a piezoelectric element and a light emitting element on a fan surface is described in Patent Document 1.
[0003]
Patent Document 2 discloses a piezoelectric vibration unit in which a piezoelectric element and a weight are provided on a vibration plate, and a shoe in which a light emitting element is provided in a heel part.
[0004]
[Patent Document 1]
JP-A-8-56728 (paragraphs 0011 to 0019, FIG. 3)
[Patent Document 2]
JP 2000-224871 (paragraphs 0028 to 0040, FIG. 1 and FIG. 4)
[0005]
[Problems to be solved by the invention]
In recent years, from the viewpoint of cost reduction and the like, a lot of fan made of plastic (synthetic resin) has been manufactured for the handle and usually for the bone of the fan.
[0006]
It was found that even when the technique described in Patent Document 1 was applied to such a round fan, the light emission amount of the light emitting element was small. This is because when the fan is fanned, the force applied to the piezoelectric element on the fan surface is small, and the power generation energy of the piezoelectric element is small.
[0007]
Accordingly, an object of the present invention is to improve such a point and to provide a piezoelectric light emitting fan having at least a handle made of a plastic fan and having a large light emission amount of a light emitting element.
[0013]
[Means for Solving the Problems]
  Piezoelectric light emitting fan according to the present inventionone ofIs formed by joining a fan face to the tip of the handle, and at least the handle is a plastic fan, and the handle is slidably accommodated in a cylindrical handle having an opening at the tip. The vicinity of the end opposite to the tip is fixed by a fixing portion provided in the handle, and a piezoelectric element for converting mechanical energy into electric energy is provided on the handle, and at least a part of the piezoelectric element is Provided between the fixed part of the handle and the central part, andAboveA light emitting element that emits light by electric power output from the piezoelectric element is provided on the fan surface.
  Another piezoelectric light emitting fan according to the present invention is formed by connecting a fan face to the tip of a handle, and at least the handle is made of plastic, the handle is placed in a cylindrical handle having an opening at the tip. A piezoelectric element that is housed in a swingable manner and is fixed by a fixing portion provided in the handle near the end opposite to the tip of the handle, and a piezoelectric element that converts mechanical energy into electric energy is provided on the handle. Provided, and at least a part of the piezoelectric element is provided between the fixed part and the central part of the handle, and a light emitting element that emits light by electric power output from the piezoelectric element is provided on the fan surface, The opening of the handle functions as a stopper that limits the amplitude of the handle.
[0014]
According to the above configuration, at least when the fan is made of plastic, when the fan is fanned, the area between the fixed part and the central part of the handle is greatly bent in the handle, unlike the case where the handle is made of bamboo or wood. Deform. Since at least a part of the piezoelectric element is positioned there, the power generation energy of the piezoelectric element can be increased to increase the light emission amount of the light emitting element.
[0021]
DETAILED DESCRIPTION OF THE INVENTION
[Piezoelectric fan]
FIG. 1 is a front view showing an embodiment of a piezoelectric light emitting fan according to the present invention. This piezoelectric light emitting fan 2 is basically formed by connecting a fan face 8 to the tip 6 of the handle 4, and at least the handle 4 is a fan made of plastic (synthetic resin). When the handle 4 is made of plastic, the plurality of bones 10 constituting the fan surface 8 and the essential region 12 that joins them together and joins the distal end portion 6 of the handle 4 are usually made of plastic. , 12 need not be plastic. This is because even if it is not plastic, the effects of the present invention are exhibited.
[0022]
In the piezoelectric light emitting fan 2, the handle 4 is provided with a piezoelectric element 16 that converts mechanical energy into electric energy. Moreover, at least a part of the piezoelectric element 16 is provided so as to be positioned between the tip 6 and the center of the handle 4. Further, a light emitting element 18 that emits light by the electric power output from the piezoelectric element 16 is provided on the fan surface 8 so that the light can be seen from the outside.
[0023]
The light emitting element 18 is, for example, a light emitting diode (LED), but may be other than that. The number of the light emitting elements 18 is 1 or more and arbitrary. The same applies to other embodiments described later. The position where the light emitting element 18 is provided on the fan surface 8 may be the required region 12 as in the example of FIG.
[0024]
As shown in FIG. 2 or 3, the piezoelectric element 16 is formed by forming electrodes 162 and 163 on both main surfaces of the piezoelectric substrate 161. The piezoelectric element 16 may be provided on only one side of the handle 4 (or a diaphragm 36 described later) to have a so-called unimorph structure, or may be provided on both surfaces of the handle 4 (or a diaphragm 36 described later) to provide a so-called bimorph. It may be structured. The same applies to other embodiments described later. The unimorph structure has a feature that the structure is simple. The bimorph structure has a feature that the power generation amount can be increased to about twice that of the unimorph structure, and the light emission amount of the light emitting element 18 can be increased. In the embodiment of the present application, a bimorph structure is basically adopted as shown in FIGS. The surface of the piezoelectric element 16 may be covered with a resin or the like so that the piezoelectric element 16 is not exposed. The same applies to other embodiments.
[0025]
An example of a wiring diagram with the light emitting element 18 in the case where the piezoelectric element 16 has a unimorph structure is shown in FIG. 2, and an example in the case of a bimorph structure is shown in FIG. Since these wiring diagrams are common to other embodiments described later except for the light emitting element 18, they will be collectively described here. The connection method in the case of the bimorph structure may be a parallel type in which two piezoelectric elements 16 are connected in parallel as shown in FIG. 3 (and FIGS. 7 to 9 described later), or two piezoelectric elements 16 are connected in series. It may be a series type. However, since even one output voltage of the piezoelectric element 16 is sufficiently high, the parallel type is preferable, and the parallel type is basically adopted in the embodiment of the present application. The specific wiring between the piezoelectric element 16 and the light emitting element 18 may be performed by a known wiring means such as a wiring pattern, a lead wire, or a through hole. Therefore, the structure shown in FIGS. In the figure, illustration is omitted.
[0026]
The operation of the piezoelectric light emitting fan 2 will be described. The piezoelectric light emitting fan 2 is usually fanned by holding the vicinity 14 of the center portion of the handle 4 by hand, like a normal fan. At this time, since at least the handle 4 of the piezoelectric light emitting fan 2 is made of plastic, unlike the case of the handle 4 made of bamboo or wood, the tip 4 of the handle 4 (that is, the connecting portion with the fan surface 8) when fanned. ) The vicinity between 6 and the central portion is greatly bent and deformed. Since the piezoelectric element 16 is provided so that at least a part of the piezoelectric element 16 is positioned there, a larger stress is applied to the piezoelectric element 16 than in the conventional example, and the generated energy of the piezoelectric element 16 (in other words, the amount of generated power; the same applies hereinafter). The light emission amount of the light emitting element 18 can be increased by increasing. Moreover, since the light emitting element 18 blinks in synchronization with the vibration of the fan surface 8, a visually interesting effect can be obtained.
[0027]
The piezoelectric element 16 is preferably provided such that as many portions as possible, preferably almost the entire portion thereof, are located between the tip portion 6 and the central portion of the handle 4. By doing so, it is possible to apply a force to the piezoelectric element 16 more effectively and increase the amount of power generation.
[0028]
Next, the piezoelectric light emitting fan 2 shown in FIG. 4 will be described mainly with respect to differences from the embodiment shown in FIG. The piezoelectric light emitting fan 2 shown in FIG. 4 has the above described handle 4 made of plastic having at least the handle 4 in a cylindrical handle (also referred to as a case) 20 having an opening 22 at the tip. It is housed and has a structure in which the vicinity of the end 7 opposite to the tip 6 of the handle 4 is fixed by a fixing portion 24 provided in the handle 20. A piezoelectric element 16 is provided on the handle 4, and at least a part of the piezoelectric element 16 is provided between the fixing portion (fixed portion by the fixing portion 24) and the central portion of the handle 4. At this time, the fixing portion 24 may hold the end portion of the piezoelectric element 16 as in the example shown in FIG. 4 or may be separated from the end portion of the piezoelectric element 16.
[0029]
The size of the opening 22 in the direction A in which the piezoelectric light emitting fan 2 is fanned, that is, the distance between the tip inner wall 21 of the handle 20 and the handle 4 in the same direction A, the amplitude of the handle 4 is appropriate when the fan 2 is fanned. You just have to set it to be something.
[0030]
Since the light-emitting element 18 is the same as described above, the redundant description is omitted here.
[0031]
The piezoelectric light emitting fan 2 is fanned with the handle 20. At this time, since at least the handle 4 of the piezoelectric light emitting fan 2 is made of plastic, when the fan is fanned, unlike the case of the handle 4 made of bamboo or wood, in the handle 20, The vicinity of the gap is greatly bent and deformed. Since the piezoelectric element 16 is provided so that at least a part of the piezoelectric element 16 is located there, a larger stress is applied to the piezoelectric element 16 than in the conventional example, and the power generation energy of the piezoelectric element 16 is increased to increase the light emission amount of the light emitting element 18. Can be bigger.
[0032]
In addition, the fulcrum of vibration of the handle 4 when the fan is fanned is uniquely determined by the fixing portion 24, and the position where the handle 20 is held is not affected. Therefore, the force when fanning the fan can be efficiently transmitted to the piezoelectric element 16. As a result, the power generation energy of the piezoelectric element 16 can be further increased, and the light emission amount of the light emitting element 18 can be further increased.
[0033]
Moreover, since the opening part 22 of the handle 20 functions as a stopper which restrict | limits the amplitude of a fan, even when a person fans with excessive force, damage to the piezoelectric element 16 can be prevented.
[0034]
In addition, it is preferable that the piezoelectric element 16 is provided so that as many parts as possible, preferably almost the whole, are located between the fixed part and the central part of the handle 4. By doing so, it is possible to apply a force to the piezoelectric element 16 more effectively and increase the amount of power generation.
[0035]
As in the embodiment shown in FIG. 5, a constriction 26 may be provided at the portion where the piezoelectric element 16 of the handle 4 is provided. By doing so, stress is concentrated on the portion of the piezoelectric element 16 when fanning the piezoelectric light emitting fan 2, so that the power generation energy of the piezoelectric element 16 is further increased and the light emission amount of the light emitting element 18 is further increased. Can do.
[0036]
As in the embodiment shown in FIG. 6, the plurality of bones 10 and the main area 12 are integrally formed of a transparent resin, and the light emitting element 18 is provided in the main area 12 to emit light from the light emitting element 18. Light may be introduced into the transparent resin. The transparent resin is, for example, a polycarbonate resin, an acrylic resin, a polyethylene terephthalate resin, or the like. As a means for introducing light emitted from the light-emitting element 18 into the transparent resin, a part or the whole of the light-emitting element 18 may be fitted in or embedded in the transparent resin. By doing so, light emitted from the light emitting element 18 can be efficiently introduced into the transparent resin.
[0037]
The number of light emitting elements 18 is not limited to three as shown in FIG. In addition, it is arbitrary whether or not the handle 4 is integrally formed with the required region 12 and the like with a transparent resin.
[0038]
According to the embodiment of FIG. 6, the light emitted from the light emitting element 18 passes through the transparent resin and is emitted to the outside from the distal end 12a of the main region 12 or the distal end 10a of each bone 10, and the distal end 12a, Since 10a looks shining, the visual beauty effect can be further increased.
[0039]
Moreover, you may form the unevenness | corrugation (concave, convex, or both) in the surface over part or all of the bone | frame 10 and the important area | region 12 which were formed with transparent resin. A pattern or a pattern may be formed with the unevenness. If such irregularities are formed, light is reflected at the irregularities and emitted to the surface, and the irregularities appear to shine, so the visual beauty effect can be further increased.
[0040]
The light emitting element 18 may be composed of a light emitting diode, and two or more light emitting diodes may be provided on the fan surface 8. In that case, as in the example shown in FIG. 7, the two light emitting diodes 18a and 18b may be connected in parallel in opposite directions. If it does in that way, when the piezoelectric light emission fan 2 is fanned, the light emitting diodes 18a and 18b will shine alternately.
[0041]
As in the example shown in FIG. 8, two light emitting diodes 18c and 18d are connected in series in the same direction, two light emitting diodes 18e and 18f are connected in series in the same direction, and both diode arrays are opposite to each other. May be connected in parallel. By doing so, when the piezoelectric light emitting fan 2 is fanned, the light emitting diodes 18c and 18d and the light emitting diodes 18e and 18f alternately shine.
[0042]
As in the example shown in FIG. 9, three light emitting diodes 18g, 18h, 18i are connected in series in the same direction, and three light emitting diodes 18j, 18k, 18l are connected in series in the same direction. May be connected in parallel in opposite directions. By doing so, when the fan 2 is fanned, the groups of the light emitting diodes 18g, 18h, 18i and the group of the light emitting diodes 18j, 18k, 18l shine alternately.
[0043]
In the embodiment in which the plurality of bones 10 and the main region 12 are integrally formed of a transparent resin as shown in FIG. 6, two or more light emitting elements 18 that emit light of different colors may be provided in the main region 12. good. If it does so, since the luminescent color is mixed in various ratios in the area | region 12 and each bone 10 part, many colors can be light-emitted and the effect effect of beauty can be increased. In this case, each of the light emitting elements 18 may be formed of a light emitting diode, and the connection method shown in FIGS.
[0044]
Similarly, in the embodiment shown in FIG. 6, a light emitting element 18 that emits red light, a light emitting element 18 that emits green light, and a light emitting element 18 that emits blue light may be provided in the main region 12. By doing so, since the three colors (the three primary colors) are mixed at various ratios in the main region 12 and the portions of the bones 10, many colors are emitted like rainbow colors, The production effect can be further increased. In this case, each light emitting element 18 may be formed of a light emitting diode, and the connection method shown in FIG. 9 may be employed. For example, if the light emission color of the light emitting diodes 18g and 18j is red, the light emission color of the light emitting diodes 18h and 18k is green, and the light emission color of the light emitting diodes 18i and 18l is blue, the light emitting diode 18g when the piezoelectric light emitting fan 2 is fanned. , 18h, 18i and the three primary color groups of the light emitting diodes 18j, 18k, 18l alternately shine.
[0045]
Further, as a modification of the embodiment shown in FIG. 6, the essential region 12 is formed of a transparent resin, and the fan surface 8 is a sheet made of a soft and elastic material such as paper or a plastic sheet ( A thin plate is formed without using bones, and is attached to the tip of the relevant region 12 (for example, sandwiched and attached), and the light emitting element 18 is provided in the relevant region 12 and emitted from the light emitting element 18. You may comprise so that light may be introduce | transduced in the said transparent resin. If it does so, the light emitted from the light emitting element 18 will pass through the transparent resin which forms the required area | region 12, and will be discharge | released outside from the front-end | tip 12a which carried out the circular arc shape in this example of the required area | region 12, and the said circular arc shape. Since the pointed tip 12a appears to shine, the visual beauty can be further increased. And since the fan surface 8 is formed without using bones in a single sheet and is softer than the main region 12, when the fan is fanned, the fan surface 8 is against the swing of the pattern 4 and the main region 12 portion. Since the swing of 8 comes with a delay, the generated wind is soft and gives a comfortable feeling.
[0046]
The example of the resin for forming the required region 12 described in the embodiment of FIG. 6, formation of irregularities on the surface of the required region 12, how to provide the light emitting elements 18 in the required region 12, and the number of the light emitting elements 18 The configuration, emission color, electrical wiring method, and the like can also be applied to this modification.
[0047]
The amount of generated power (voltage × current × time) of the piezoelectric element 16 when a constant vibration energy was applied to the piezoelectric light emitting fan 2 shown in FIG. 1 was measured. When the piezoelectric element 16 has a single unimorph structure (Example 1), when the piezoelectric element 16 has two bimorph structures (Example 2), and when the handle 4 is further provided with a constriction 26 (Example 3). Went about. Table 1 shows the ratio of the generated power. It was confirmed that the amount of generated power increased as the examples were later.
[0048]
[Table 1]

[0049]
[Piezoelectric emission support goods]
FIGS. 10 to 13 show the implementation of the piezoelectric light emission support goods 30 that are used for cheering by being shaken or hit by a person and have main body portions 32, 32a, 32b having hollow portions 34, 34a, 34b inside. Each form is shown.
[0050]
FIG. 10 shows a bat-type piezoelectric light emission support goods 30, in which a piezoelectric vibration unit 35 in which the piezoelectric element 16 is attached to one end side of a vibration plate 36 is attached to a hollow portion of the main body 32. 34, the piezoelectric vibration unit 35 is fixed at one end (the end on the side where the piezoelectric element 16 is offset) by a fixing portion 38. The diaphragm 36 has elasticity, and in this example, has a strip shape. The vibration plate 36 may be formed of a conductive metal plate and also used for electrical connection of the piezoelectric element 16 and the like. In the piezoelectric light emission support goods 30, it is preferable that the fixing portion 38 and the end portion of the piezoelectric element 16 are slightly separated from each other. This is to prevent the piezoelectric element 16 from being damaged by applying a strong bending force. The same applies to other embodiments.
[0051]
Further, stoppers 40 for preventing excessive vibration of the piezoelectric vibration unit 35 are provided on both sides of the vibration direction indicated by the arrow B of the piezoelectric vibration unit 35 (that is, the vibration direction in the plate thickness direction of the vibration plate 36). 35 apart from each other. This separation distance is set to a distance that does not inhibit the vibration in which the piezoelectric vibration unit 35 freely vibrates (inertial vibration) after the moment when the piezoelectric light emitting support goods 30 are shaken or hit. The same applies to other embodiments described later. Each stopper 40 protrudes into the cavity 34 in this example.
[0052]
Further, the light emitting element 18 that emits light by the electric power output from the piezoelectric element 16 is provided in the main body 32 so that the light can be seen from the outside. The number, configuration, wiring method, and the like of the light emitting elements 18 are the same as described above. Further, a part or all of the light emitting element 18 may be embedded in the main body 32. However, keep the light out. This makes it difficult for the light emitting element 18 to be detached or broken. These matters are the same in other embodiments described later.
[0053]
The operation of the piezoelectric light emission support goods 30 will be described. When the piezoelectric light emission support goods 30 is shaken or hit by the handle 31 when supporting a sporting event or the like, the piezoelectric vibration unit 35 vibrates. A force due to the vibration is applied to the piezoelectric element 16 to generate electric power, and the light emitting element 18 emits light by the electric power. This light emission can further enhance the sense of solidarity, satisfaction, etc. during support.
[0054]
Further, in the piezoelectric vibration unit 35, the piezoelectric element 16 is attached while being offset toward one end side (fixed end side) of the vibration plate 36, and the vicinity where the piezoelectric element 16 is attached is mainly bent and the piezoelectric element 16 is bent. Since a vibration force can be efficiently applied to the piezoelectric element 16, the power generation energy of the piezoelectric element 16 can be increased and the light emission amount of the light emitting element 18 can be increased.
[0055]
In addition, even if a person is enthusiastic about cheering and shakes the main body 32 strongly or hits strongly, excessive vibration of the piezoelectric vibration unit 35 at that moment is prevented by the stopper 40, so that the piezoelectric vibration unit 35 is It becomes hard to break.
[0056]
In addition, after the moment when the piezoelectric light emitting support goods 30 are shaken or struck, the piezoelectric vibration unit 35 vibrates freely, so that the vibration duration is long, so that the amount of light emitted from the light emitting element 18 can be seen visually. can get.
[0057]
As in the embodiment shown in FIG. 14, a constriction 26 may be provided on the portion of the diaphragm 36 where the piezoelectric element 16 is provided. By doing so, when the piezoelectric vibration unit 35 vibrates, stress concentrates on the portion of the piezoelectric element 16, so that the power generation energy of the piezoelectric element 16 is further increased and the light emission amount of the light emitting element 18 is further increased. be able to.
[0058]
Further, as in the embodiment shown in FIG. 10 and the like, a weight 42 may be provided in the vicinity of the free end that is the other end of the vibration plate 36 constituting the piezoelectric vibration unit 35. By doing so, the addition of the weight 42 increases the vibration period of the piezoelectric vibration unit 35 and increases the vibration duration, so that the light emission time of the light emitting element 18 increases, and thereby the light emission of the light emitting element 18 visually. The effect of seeing more is increased.
[0059]
FIG. 11 shows a megaphone-type piezoelectric light emission support goods 30, and the structure and operational effects thereof are substantially the same as those of the piezoelectric light emission support goods 30 of FIG.
[0060]
FIG. 12 shows a two-part megaphone type piezoelectric light emission support goods 30, and the difference from the embodiment of FIGS. 10 and 11 will be mainly described. The piezoelectric light emission support goods 30 includes a hollow portion 34 a, As shown by an arrow C, two main body portions 32a and 32b each having 34b are connected to each other so as to be opened and closed. The piezoelectric light-emitting support goods 30 are held by the handle 31 and shaken or struck, and both main body portions 32a and 32b are moved in the direction of arrow C to collide with each other to produce sound and provide support.
[0061]
In the case of this embodiment, the piezoelectric vibration unit 35, the stopper 40, and the like are provided in the hollow portion 34a of the one main body portion 32a. However, one of the stoppers 40 (in the vicinity of the inner wall surface 33a in this example) may be used as the inner wall surface 33a of the main body 32a as shown in FIG. good. Further, in order to prevent the tip of the piezoelectric vibration unit 35 from hitting the inner wall surfaces of both the main body portions 32a and 32b when both the main body portions 32a and 32b are closed, as in this example, both the inner wall surfaces 33a and 33b are used. Openings 44a and 44b may be provided respectively. Further, the light emitting element 18 may be provided in both the main body portions 32a and 32b, or may be provided only in one of the main body portions.
[0062]
FIG. 13 shows a timepiece-type piezoelectric light emission support goods 30. The difference from the embodiment of FIG. 12 will be mainly described. This piezoelectric light emission support goods 30 has two main body portions. 32a and 32b are connected by a fixed portion 38, and are opened and closed as indicated by an arrow C by the elasticity of the members of the main body portions 32a and 32b. Both main body portions 32a and 32b may be hand-shaped. The piezoelectric light-emitting support goods 30 are held by the handle 31 and shaken or struck, and both main body portions 32a and 32b are moved in the direction of arrow C to collide with each other to produce sound and provide support. The other points are the same as in the embodiment of FIG.
[0063]
The amount of generated power (voltage × current × time) of the piezoelectric element 16 when a certain vibration energy was given to the piezoelectric light emitting support goods 30 shown in FIG. 10 was measured. When the piezoelectric element 16 has one unimorph structure (Example 4), the piezoelectric element 16 has two bimorph structures (Example 5), and when the diaphragm 36 is further provided with a constriction 26 (Example 6). ) Table 2 shows the ratio of the generated power. It was confirmed that the amount of generated power increased as the examples were later. In the piezoelectric light emitting display goods 50 described later, almost the same results as in Table 2 were obtained.
[0064]
[Table 2]

[0065]
Further, FIG. 22 shows the result of measuring the vibration duration when the piezoelectric vibration unit 35 is freely vibrated after giving a certain impact force to the piezoelectric light emitting support goods 30 shown in FIG. 10 while changing the weight of the weight 42. Shown in It can be seen that by increasing the weight 42, the vibration duration time is increased, and it is possible to realize a long vibration duration time of 0.2 to 0.6 seconds, and thus a light emission time of the light emitting element 18. It can be easily understood that similar results can be obtained with the piezoelectric light emitting support goods 30 shown in FIGS.
[0066]
[Piezoelectric display goods]
FIG. 15 is a perspective view showing an example of the piezoelectric light emitting display goods in which the light emitting elements constitute the eyes of the tiger's pattern. This piezoelectric light emitting display goods 50 includes a container 52 having an opening 54 at a place where a tiger pattern 56 is displayed on the surface and avoiding the pattern 56 (in this example, on a side surface). The piezoelectric vibration unit 35 having the piezoelectric element 16 attached to the one end side of the vibration plate 36 so as to be offset is housed in the container 52, and piezoelectric vibration is generated by the fixing portion 38 provided in the container 52. One end of the unit 35 (the end on the side where the piezoelectric element 16 is offset) is fixed, and the other end of the diaphragm 36 of the piezoelectric vibration unit 35 is brought out of the container 52 through the opening 54 to be pushed by the hand. 58 is formed. Further, a plurality of (in this example, two) light-emitting elements 18 that emit light by the electric power output from the piezoelectric element 16 are formed so as to form a part of the pattern 56, more specifically, the tiger's eye part. Arranged to compose.
[0067]
According to the piezoelectric light emitting display goods 50, when a person pushes the hand pressing portion 58 in the thickness direction indicated by the arrow D to apply vibration or impact to the piezoelectric vibration unit 35, the piezoelectric vibration unit 35 bends or freely vibrates. Electric power is output from the piezoelectric element 16 due to vibration or the like, and the two light emitting elements 18 arranged to form the tiger's eyes emit light and blink, that is, the tiger's eyes blink. The impression of the pattern 56 is enhanced, and a visual beauty effect can be produced. In other words, it can produce unusual and interesting display effects that are fun to use.
[0068]
FIG. 16 shows an example of a wiring diagram when the two light emitting elements 18 are formed of light emitting diodes. Here, two light emitting diodes 18 are connected in series in the same direction. In this way, the tiger's eyes blink simultaneously.
[0069]
The pattern 56 on the surface of the container 52, the number of the light emitting elements 18 and the like may be other than the embodiment of FIG. An example of this will be described below.
[0070]
The piezoelectric light-emitting display goods 50 in FIG. 17 include a plurality of light-emitting elements, a light-emitting element 18m constituting a first (inner) group, and a second (outer-side) so as to constitute a part of a firework pattern 56. This is an embodiment in which the light emitting elements 18n constituting the group are separately arranged.
[0071]
In the piezoelectric light emitting display goods 50, by operating the hand pressing portion 58 as described above, electric power is output from the piezoelectric element 16, and the plurality of light emitting elements 18m and 18n emit light and blink. This will increase the impression and produce a visual beauty effect. In other words, it can produce unusual and interesting display effects that are fun to use.
[0072]
FIG. 19 shows an example of a wiring diagram when the plurality of light emitting elements 18m and 18n are formed of light emitting diodes. Here, a plurality of light emitting diodes 18m constituting the first group are connected in series in the same direction, a plurality of light emitting diodes 18n constituting the second group are connected in series in the same direction, and both light emitting diode rows Are connected in parallel in opposite directions. When such a configuration is adopted in the embodiment of FIG. 17, the light emitting elements (light emitting diodes) 18m in the inner group and the light emitting elements (light emitting diodes) 18n in the outer group blink alternately, so that the movement of the pattern 56 An expression can be added. That is, it is possible to express a movement in which fireworks spread one after another. Therefore, the visual beauty effect can be further increased.
[0073]
Since the output impedance of the piezoelectric element 16 is generally high, even if the number of light emitting elements (light emitting diodes) 18m or 18n is increased as in the example shown in FIG. 19, for example, the light emitting elements 18m and 18n emit light. It was confirmed that the characteristics were not deteriorated. This is because the load impedance becomes higher and the matching with the output impedance of the piezoelectric element 16 becomes easier when the plurality of light emitting elements are connected in series than when they are connected in parallel. According to the experiment, it was found that the present invention can be applied without problems from about 2 series to about 25 series.
[0074]
The piezoelectric light-emitting display goods 50 in FIG. 18 have a plurality of light-emitting elements and a group of light-emitting elements 18m that constitute a part of a large-character picture 56a so as to constitute a part of the upper-cased fire design 56a, 56b. And the light-emitting element 18n of the group that constitutes a part of the Higashiyama pattern 56b.
[0075]
In the piezoelectric light emitting display goods 50, by operating the hand pressing portion 58 as described above, electric power is output from the piezoelectric element 16, and the light emitting elements 18m and 18n emit light and blink. This enhances the impression of 56b, and can produce a visual beauty effect. In other words, it can produce unusual and interesting display effects that are fun to use.
[0076]
Also in this embodiment, the plurality of light emitting elements 18m and 18n may be formed of light emitting diodes, and the connection shown in FIG. 19 may be employed. If it does so, since the light emitting element (light emitting diode) 18m of the group of the picture 56a of a large character and the light emitting element (light emitting diode) 18n of the group of the Higashiyama picture 56b will blink alternately, the expression of movement in the pattern Can be added. Therefore, the visual beauty effect can be further increased.
[0077]
Also in each of the piezoelectric light emitting display goods 50, as described above, a constriction 26 (see FIG. 14) may be provided on the portion of the diaphragm 36 of the piezoelectric vibration unit 35 where the piezoelectric element 16 is provided. Then, the power generation energy of the piezoelectric element 16 can be further increased, and the light emission amount of the light emitting element 18 can be further increased. The same applies to each piezoelectric light emitting display goods 60 described below (see FIG. 21).
[0078]
In addition, a part or all of the plurality of light emitting elements 18, 18m, and 18n in each of the piezoelectric light emitting display goods 50 are arranged so that they appear to form part of the designs 56, 56a, and 56b when they emit light. You can keep it. For example, the surface of the container 52 that displays the patterns 56, 56a, and 56b may be transparent or semi-transparent, and the light emitting elements 18, 18m, and 18n may be disposed near the back side of the surface.
[0079]
FIG. 20 is a perspective view showing an embodiment of the piezoelectric light emitting display goods attached to the rocking body. In this piezoelectric light emitting display goods 60, a piezoelectric vibration unit 35 as shown in FIG. 15 is housed and fixed in a container 52, and one end portion (corresponding to a hand pressing portion 58) of a vibration plate 36 constituting the piezoelectric vibration unit 35. The end portion is attached to a rocking body 62 that rocks by natural force. The container 52 is provided with a plurality of light emitting elements 18 that emit light by electric power output from the piezoelectric elements 16 (not shown in the figure, see FIG. 15 and the like) of the piezoelectric vibration unit 35. In the piezoelectric light emitting display goods 60, whether or not to display a pattern on the surface of the container 52 and whether or not to arrange the light emitting element 18 so as to constitute a part of the pattern are arbitrary.
[0080]
The rocking body 62 is rocked by a natural force such as a wind flow or a water flow. More specific examples are tree branches and windsocks.
[0081]
According to the piezoelectric light emitting display goods 60, when the swinging body 62 swings in the plate thickness direction of the vibration plate 36 indicated by the arrow E by natural forces such as a wind flow or a water flow, Since a vibration force is applied to the piezoelectric vibration unit 35 and electric power is output from the piezoelectric element 16 by the force, and the light emitting element 18 emits light and blinks, a visual beauty effect can be obtained. In other words, a mysterious and interesting display effect can be produced. For example, an effect such that a firefly is blinking can be produced.
[0082]
Like the piezoelectric light emitting display goods 60 shown in FIG. 21, without providing the container 52, one end portion of the vibration plate 36 constituting the piezoelectric vibration unit 35 is attached to the oscillator 62, and the vicinity of the other end portion of the vibration plate 36. Alternatively, the light emitting element 18 may be attached. In this way, the structure can be simplified. Since the operational effects of the piezoelectric light emitting display goods 60 are almost the same as those of FIG. 20, a duplicate description is omitted here.
[0083]
Further, the plurality of light emitting elements 18 constituting each of the piezoelectric light emitting display goods 60 may be constituted by light emitting diodes, which may be divided into two groups and connected as shown in FIG. For example, since the two groups of light emitting elements 18 can emit light alternately when the swinging body 62 swings, more effective effects such as a three-dimensional effect can be achieved.
[0084]
【The invention's effect】
Since this invention is comprised as mentioned above, there exist the following effects.
[0086]
  Claim 12According to the invention described inTubularThe handle is swingably housed, and at least when the handle is made of plastic, when the fan is used, the handle is fixed to the center and The vicinity of the gap is greatly bent and deformed. Since at least a part of the piezoelectric element is positioned there, the power generation energy of the piezoelectric element can be increased to increase the light emission amount of the light emitting element.
[0087]
  Moreover, the patternTubularPosition where the handle is held in a handle so that it can swing, and the fulcrum of the handle's vibration (swing) is uniquely determined by the fixing part.InSince it is not influenced, the force when fanning a fan can be efficiently transmitted to the piezoelectric element. As a result, the power generation energy of the piezoelectric element can be further increased, and the light emission amount of the light emitting element can be further increased.
[0088]
Further, since the opening of the handle functions as a stopper that limits the amplitude of the fan, damage to the piezoelectric element can be prevented even when a person flies with an excessive force.
[0089]
  Claim3According to the invention described in the above, since the constriction is provided in the portion where the handle piezoelectric element is provided, stress is concentrated on the portion of the piezoelectric element when fanning the piezoelectric light emitting fan. There is a further effect that the energy can be further increased to further increase the light emission amount of the light emitting element.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of a piezoelectric light emitting fan according to the present invention.
FIG. 2 is a diagram illustrating an example of a wiring diagram between a piezoelectric element having a unimorph structure and a light emitting element.
FIG. 3 is a diagram showing an example of a wiring diagram between a piezoelectric element having a bimorph structure and a light emitting element.
FIG. 4 is a longitudinal sectional view partially showing another embodiment of the piezoelectric light emitting fan according to the present invention, and corresponds to the FF section of FIG. 1;
FIG. 5 is a front view partially showing an example in which a constriction is provided on a round fan handle.
FIG. 6 is a front view partially showing still another embodiment of a piezoelectric light emitting fan according to the present invention.
FIG. 7 is a diagram showing an example of a wiring diagram in the case where two light emitting diodes are provided as light emitting elements.
FIG. 8 is a diagram showing an example of a wiring diagram in the case where four light emitting diodes are provided as light emitting elements.
FIG. 9 is a diagram showing an example of a wiring diagram in the case where six light emitting diodes are provided as light emitting elements.
FIG. 10 is a cross-sectional view showing an example of a bat-type piezoelectric light emission support goods.
FIG. 11 is a cross-sectional view showing an example of a megaphone-type piezoelectric light emission support goods.
FIG. 12 is a cross-sectional view showing an example of a two-part megaphone type piezoelectric light emission support goods.
FIG. 13 is a cross-sectional view showing an example of a timepiece type piezoelectric light emission support goods.
FIG. 14 is a plan view partially showing an example in which a constriction is provided on a diaphragm.
FIG. 15 is a perspective view showing an example of a piezoelectric light emitting display goods in which a light emitting element forms an eye part of a tiger pattern.
16 is a diagram showing an example of a wiring diagram when a light emitting diode is used as a light emitting element in the embodiment of FIG. 15;
FIG. 17 is a plan view showing an example of a piezoelectric light emitting display goods in which light emitting elements constitute a part of a firework pattern.
FIG. 18 is a plan view showing an example of a piezoelectric light emitting display goods in which a light emitting element constitutes a part of a picture of a capital letter fire.
19 is a diagram showing an example of a wiring diagram when a light emitting diode is used as a light emitting element in the embodiment of FIGS. 17 and 18. FIG.
FIG. 20 is a perspective view showing an embodiment of a piezoelectric light emitting display goods attached to a rocking body.
FIG. 21 is a perspective view showing another embodiment of the piezoelectric light emitting display goods attached to the rocking body.
22 is a graph showing an example of the result of measuring the vibration duration when the piezoelectric vibration unit constituting the piezoelectric light emitting support goods shown in FIG. 10 was freely vibrated by changing the weight of the weight.
[Explanation of symbols]
2 Piezoelectric light emitting fan
4 patterns
8 Fans
10 bones
12 key areas
16 Piezoelectric elements
18 Light emitting element
20 Handle
26 Constriction
30 Piezoelectric emission support goods
32, 32a, 32b Main body
35 Piezoelectric vibration unit
36 Diaphragm
40 stopper
42 weight
50 Piezoelectric light emitting display goods
52 containers
54 opening
56, 56a, 56b
58 Pusher
60 Piezoelectric light emitting display goods
62 Oscillator

Claims (3)

The fan is joined to the tip of the handle, and at least the handle is a plastic fan,
The handle is slidably housed in a cylindrical handle having an opening at the tip, and the vicinity of the end opposite to the tip of the handle is fixed by a fixing portion provided in the handle. ,
The handle is provided with a piezoelectric element that converts mechanical energy into electrical energy, and at least a part of the piezoelectric element is provided between a fixed portion and a central portion of the handle,
And piezoelectric emission fan, characterized by being provided with a light emitting element that emits light by electric power output from the piezoelectric element to the fan plane. The fan is joined to the tip of the handle, and at least the handle is a plastic fan,
The handle is slidably housed in a cylindrical handle having an opening at the tip, and the vicinity of the end opposite to the tip of the handle is fixed by a fixing portion provided in the handle. ,
The handle is provided with a piezoelectric element that converts mechanical energy into electrical energy, and at least a part of the piezoelectric element is provided between a fixed portion and a central portion of the handle,
And it has provided a light emitting element that emits light by electric power output from the piezoelectric element to the fan plane,
And opening of the handle, a piezoelectric luminous fan, characterized that you function as a stopper for limiting the amplitude of the handle. The piezoelectric light emitting fan according to claim 1 or 2 , wherein a constriction is provided at a portion where the piezoelectric element of the handle is provided.

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