JP2004358054A - Piezoelectric light-emitting fan, piezoelectric light-emitting cheering goods, and piezoelectric light-emitting display goods - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a piezoelectric light-emitting fan where at least a handle is made of plastic and the light-emitting quantity of a light-emitting element is large. <P>SOLUTION: As for this piezoelectric light-emitting fan 2, in the fan which is obtained by connecting a fan surface 8 to the distal end part 6 of the handle 4 and at least the handle 4 is made of plastic, the handle 4 is provided with a piezoelectric element 16 for transducing mechanical energy to electric energy, and at least a part of the piezoelectric element 16 is positioned between the distal end part 6 and the center part of the handle 4. The light-emitting element 18 light-emitting by power outputted from the piezoelectric element 16 is provided on the fan surface 8. As for the fan the handle 4 of which is made of plastic at least, a vicinity between the distal end part and the center part of the handle 4 is bent much and deformed when it fans as against the case of a fan whose handle is made of bamboo or wood. Since at least a part of the piezoelectric element 16 is positioned there, the light-emitting quantity of the light-emitting element 18 can be increased by increasing the power generation energy of the piezoelectric element 16. <P>COPYRIGHT: (C)2005,JPO&NCIPI

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。
【００８５】
請求項１に記載の発明によれば、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、柄の先端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。
【００８６】
請求項２に記載の発明によれば、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、扇ぐときの柄の振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。
【００９０】
請求項４に記載の発明によれば、発光素子から発した光は、透明樹脂中を通過して、要領域の先端または各骨の先端から外部に放出され、当該先端が光って見えるので、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、という更なる効果を奏する。
【００９１】
請求項５に記載の発明によれば、発光素子から発した光は、要領域を形成する透明樹脂中を通過して要領域の先端から外部に放出され、当該先端が光って見えるので、視覚的な美しさをより増大させることができ、かつ要領域に比べて扇面が柔らかいため、うちわを扇いだ際に、柄および要領域部分のスイングに対して、扇面のスイングが遅れて付いてくるので、発生する風が柔らかく、心地よい感覚を与える、という更なる効果を奏する。
【００９２】
請求項６に記載の発明によれば、要領域および各骨の部分において発光色が様々な割合で混合されるので、多くの色を発光させて、美しさの演出効果を増大させることができる、という更なる効果を奏する。
【００９３】
請求項７に記載の発明によれば、要領域および各骨の部分において３色（３原色）の発光色が様々な割合で混合されるので、虹色のように多くの色を発光させて、美しさの演出効果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。
【００９４】
請求項８に記載の発明によれば、当該圧電発光応援グッズを手に持って振ったり叩いたりすると、圧電振動ユニットが振動し、その振動による力が圧電素子に加わって圧電素子が発電し、その電力によって発光素子が発光する。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。
【００９５】
また、この圧電振動ユニットでは、圧電素子を振動板の一方端側（固定端側）に片寄らせて取り付けており、圧電素子を取り付けている付近が主に屈曲して圧電素子に振動力を効率良く加えることができるので、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。
【００９６】
しかも、人が応援に熱中する等して本体部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の過大な振動がストッパーによって阻止されるので、圧電振動ユニットが壊れにくくなる。
【００９７】
また、圧電発光応援グッズを振ったり叩いたりした瞬間の後は、圧電振動ユニット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の発光量が多く見えるという効果も得られる。
【００９８】
請求項９に記載の発明によれば、振動板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、圧電振動ユニットが振動する際に、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。
【００９９】
請求項１０に記載の発明によれば、重りの付加によって圧電振動ユニット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、発光素子の発光時間が増大し、それによって視覚的に発光素子の発光量が多く見えるという効果が増大する、という更なる効果を奏する。
【０１００】
請求項１１に記載の発明によれば、人が手押し部を押して圧電振動ユニットに振動または衝撃を与えることによって、その振動等に応じて圧電素子から電力が出力されて、絵柄の一部を構成するように配置されている複数の発光素子が発光するので、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、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。
【０１０１】
請求項１２に記載の発明によれば、揺動体が風の流れや水の流れ等の自然の力によって揺動すると、その揺動に応じて圧電振動ユニットに力が加わって、圧電素子から電力が出力されて発光素子が発光するので、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。
【０１０２】
請求項１３に記載の発明によれば、振動板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、圧電振動ユニットが振動する際に、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]
TECHNICAL FIELD 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. More specifically, the present invention relates to a piezoelectric light emitting fan, a piezoelectric light emitting support goods, and a piezoelectric light emitting device. Related to luminescent display goods. Here, the goods mean accessories, miscellaneous goods, toys and the like.
[0002]
[Prior art]
A fan having a piezoelectric element and a light emitting element provided 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 shoes in which a light emitting element is provided in a heel portion.
[0004]
[Patent Document 1]
JP-A-8-56728 (paragraphs 0011 to 0019, FIG. 3)
[Patent Document 2]
JP-A-2000-224871 (paragraphs 0028 to 0040, FIGS. 1 and 4)
[0005]
[Problems to be solved by the invention]
In recent years, from the viewpoint of cost reduction and the like, a large number of fans made of plastic (synthetic resin) have been produced for the handle, and more usually for the bone of the fan surface.
[0006]
It has been found that even when the technology described in Patent Document 1 is applied to such a fan, the light emission amount of the light emitting element is small. This is because the force applied to the piezoelectric element on the fan surface when the fan is blown is small, and the power generation energy of the piezoelectric element is small.
[0007]
Accordingly, it is an object of the present invention to improve such a point and to provide a piezoelectric light emitting fan having at least a handle made of plastic and having a large light emission amount of a light emitting element.
[0008]
In addition, although an attempt was made to apply the technology described in Patent Document 2 to a support product used for support by shaking or hitting a person, it was found that the piezoelectric vibration unit was easily broken. This is because a very large force is applied to the piezoelectric vibration unit at the moment when the support goods are shaken or beaten strongly, and the piezoelectric vibration unit vibrates excessively.
[0009]
Therefore, it is another object of the present invention to improve such a point and to provide a piezoelectric emission supporting goods in which the piezoelectric vibration unit is hard to break.
[0010]
It is still another object of the present invention to provide a piezoelectric light-emitting display product having a piezoelectric element and a light-emitting element and capable of producing a visual beauty effect.
[0011]
[Means for Solving the Problems]
One of the piezoelectric light emitting fan according to the present invention is formed by connecting a fan surface to a tip portion of a handle, and at least the handle is made of plastic, and the handle is provided with a piezoelectric element that converts mechanical energy into electrical energy. Moreover, at least a portion of the piezoelectric element is provided so as to be located between the tip and the center 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. (Corresponding to claim 1).
[0012]
According to the above-described configuration, at least the fan of the plastic made of plastic is deformed by being largely bent near the tip and the center of the handle when the fan is fanned, unlike the case of bamboo or wooden. Since at least a part of the piezoelectric element is provided there, the power generation energy of the piezoelectric element can be increased and the light emission amount of the light emitting element can be increased.
[0013]
Another one of the piezoelectric light emitting fans according to the present invention is formed by connecting a fan surface to a tip portion of a handle. At least the handle is made of a plastic fan, and the handle is formed in a cylindrical handle having an opening at the tip. And fixed near the end of the handle opposite to the tip with a fixed portion provided in the handle, and the handle is provided with a piezoelectric element for converting mechanical energy into electric energy, and At least a portion of the piezoelectric element is provided so as to be located between the fixed portion and the central portion of the handle, and a light emitting element that emits light by power output from the piezoelectric element is provided on the fan surface. (Corresponding to claim 2).
[0014]
According to the above-described configuration, at least the fan of the handle made of plastic is different from the case where the handle is made of bamboo or wooden when the fan is fanned, and the vicinity between the fixed portion of the handle and the central portion is largely bent in the handle. Deform. Since at least a part of the piezoelectric element is provided there, the power generation energy of the piezoelectric element can be increased and the light emission amount of the light emitting element can be increased.
[0015]
One of the piezoelectric light emission support goods according to the present invention is used for support by shaking or hitting by a person, and converts mechanical energy into electric energy in a support goods having a main body having a cavity therein. A piezoelectric vibrating unit having a piezoelectric element to be biased and attached to one end of the vibrating plate is accommodated in a cavity of the main body, and one end of the piezoelectric vibrating unit is fixed, and the vibration direction of the piezoelectric vibrating unit is fixed. On both sides of the body, stoppers for preventing excessive vibration of the piezoelectric vibration unit are provided separately from the piezoelectric vibration unit, and a light emitting element that emits light by power output from the piezoelectric element is provided on the main body. (Corresponding to claim 8).
[0016]
According to the above configuration, since the excessive vibration of the piezoelectric vibration unit at the moment when the main body is strongly shaken or hit is prevented by the stopper, the piezoelectric vibration unit is hardly broken.
[0017]
One of the piezoelectric light emitting display goods according to the present invention includes a piezoelectric element for converting mechanical energy into electric energy in a container having a pattern displayed on a surface thereof and having an opening at a place avoiding the pattern. A piezoelectric vibration unit, which is mounted to be offset to one end side, is housed, and one end of the piezoelectric vibration unit is fixed by a fixing portion provided in the container, and the other end of the vibration plate of the piezoelectric vibration unit is fixed. The part is drawn out of the container through the opening to form a hand-pressed part, and a plurality of light-emitting elements that emit light by power output from the piezoelectric element are arranged so as to constitute a part of the picture. (Corresponding to claim 11).
[0018]
According to the above configuration, when a person presses the hand pushing portion to apply vibration or impact to the piezoelectric vibration unit, power is output from the piezoelectric element according to the vibration or the like, and the device is arranged so as to constitute a part of the picture. Since the plurality of light emitting elements emit light, an effect of visual beauty can be obtained.
[0019]
Another one of the piezoelectric light emitting display goods according to the present invention is a piezoelectric vibration unit in which a piezoelectric element for converting mechanical energy into electric energy is attached to a diaphragm, and a light emitting element that emits light by electric power output from the piezoelectric element. Wherein one end of the vibration plate of the piezoelectric vibration unit is attached to a rocking body that rocks by natural force (corresponding to claim 12).
[0020]
According to the above configuration, when the oscillating body oscillates by a natural force such as a flow of a wind or a flow of water, a force is applied to the piezoelectric vibrating unit in accordance with the oscillation, and electric power is output from the piezoelectric element to emit light. Since the element emits light, it is possible to produce a visual beauty effect.
[0021]
BEST MODE FOR CARRYING OUT THE INVENTION
[Piezoelectric fan]
FIG. 1 is a front view showing an embodiment of a piezoelectric light emitting fan according to the present invention. The piezoelectric light emitting fan 2 is basically formed by connecting a fan surface 8 to a tip portion 6 of a handle 4, and at least the handle 4 is made of a plastic (synthetic resin) fan. When the handle 4 is made of plastic, the plurality of bones 10 constituting the fan surface 8 and the necessary area 12 where the bones 10 are united and connected to the tip 6 of the handle 4 are usually made of plastic. , 12 need not necessarily be plastic. This is because the effects of the present invention can be obtained even if the material is not plastic.
[0022]
In the piezoelectric light emitting fan 2, the handle 4 is provided with a piezoelectric element 16 for converting mechanical energy into electric energy. Moreover, at least a part of the piezoelectric element 16 is provided so as to be located between the distal end portion 6 of the handle 4 and the central portion. Further, a light emitting element 18 that emits light by 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 another element. The number of the light emitting elements 18 is one or more. 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 in the necessary area 12 as in the example of FIG.
[0024]
The piezoelectric element 16 is formed by forming electrodes 162 and 163 on both main surfaces of a piezoelectric substrate 161 as shown in FIG. The piezoelectric element 16 may be provided on only one surface of the handle 4 (or a vibration plate 36 described later) to have a so-called unimorph structure, or may be provided on both surfaces of the handle 4 (or a vibration plate 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 amount of power generation 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 invention, a bimorph structure is basically adopted as shown in FIGS. Note that 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]
FIG. 2 shows an example of a wiring diagram with the light emitting element 18 when the piezoelectric element 16 has a unimorph structure, and FIG. 3 shows an example when it has a bimorph structure. These wiring diagrams are common to other embodiments to be described later, except for the light emitting element 18, and will be described here collectively. 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, etc.), or two piezoelectric elements 16 are connected in series. It may be a serial 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 invention. Since the specific wiring between the piezoelectric element 16 and the light emitting element 18 may be performed by known wiring means such as a wiring pattern, a lead wire, a through hole, etc., the structure shown in FIG. 1, FIG. 4, FIG. The illustration is omitted in the figure.
[0026]
The operation of the piezoelectric light emitting fan 2 will be described. In general, the piezoelectric light emitting fan 2 holds the central portion 14 of the handle 4 by hand and fans like the normal fan. At this time, since at least the handle 4 is made of plastic, unlike the case where the handle 4 is made of bamboo or wood, the piezoelectric light emitting fan 2 has a tip portion (that is, a connection portion with the fan surface 8) unlike a case where the handle 4 is made of bamboo or wooden. ) The vicinity between 6 and the central portion is greatly bent and deformed. Since at least a part of the piezoelectric element 16 is provided 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 (in other words, the generated power amount; the same applies hereinafter). And the light emission amount of the light emitting element 18 can be increased. Further, 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]
In addition, it is preferable that the piezoelectric element 16 is provided so that as much as possible, and preferably almost the entirety, of the piezoelectric element 16 is located between the tip 6 and the center of the handle 4. By doing so, a force can be more effectively applied to the piezoelectric element 16 and the amount of power generation can be increased.
[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 includes a plastic fan 4 having at least the handle 4 made of a plastic as described above in a cylindrical handle (also referred to as a case) 20 having an opening 22 at the end. The handle 4 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. The piezoelectric element 16 is provided on the handle 4, and at least a part of the piezoelectric element 16 is provided between the fixed portion of the handle 4 (the fixed portion of the fixed portion 24) and the central portion. At this time, the fixing portion 24 may press the end of the piezoelectric element 16 as in the example shown in FIG. 4 or may be separated from the end 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 is such that the amplitude of the handle 4 when the fan 2 is fanned is appropriate. What is necessary is just to set it up.
[0030]
The light-emitting element 18 is the same as described above, and the description thereof will not be repeated.
[0031]
The piezoelectric light emitting fan 2 holds the handle 20 and fans. At this time, since at least the handle 4 is made of plastic, unlike the case where the handle 4 is made of bamboo or wooden, the piezoelectric light emitting fan 2 has a fixed portion and a central portion of the handle 4 inside the handle 20 when the fan is fanned. The area around is greatly bent and deformed. Since at least a part of the piezoelectric element 16 is provided there, a large stress is applied to the piezoelectric element 16 as compared with the conventional example, so that the power generation energy of the piezoelectric element 16 is increased and the light emission amount of the light emitting element 18 is reduced. Can be larger.
[0032]
In addition, the fulcrum of the vibration of the handle 4 when the fan 4 is fanned is uniquely determined by the fixing portion 24, and the position where the handle 20 is held is not affected, so that the force when the fan is fanned can be transmitted to the piezoelectric element 16 efficiently. 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]
In addition, the opening 22 of the handle 20 functions as a stopper for limiting the amplitude of the fan, so that even if a person blows with an excessive force, the piezoelectric element 16 can be prevented from being damaged.
[0034]
It is preferable that the piezoelectric element 16 be provided so that as many parts as possible, and preferably substantially the entirety thereof, are located between the fixed part of the handle 4 and the central part. By doing so, a force can be more effectively applied to the piezoelectric element 16 and the amount of power generation can be increased.
[0035]
As in the embodiment shown in FIG. 5, a constriction (constriction) 26 may be provided in a portion of the handle 4 where the piezoelectric element 16 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 be.
[0036]
As in the embodiment shown in FIG. 6, the plurality of bones 10 and the required area 12 are integrally formed of a transparent resin, and the light emitting element 18 is provided in the required area 12, and emitted 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 or embedded in the transparent resin. By doing so, the light emitted from the light emitting element 18 can be efficiently introduced into the transparent resin.
[0037]
Note that the number of light emitting elements 18 is not limited to three as shown in FIG. Whether or not the pattern 4 is formed integrally with the necessary area 12 and the like with a transparent resin is optional.
[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 tip 12a of the necessary region 12 or the tip 10a of each bone 10, and the tip 12a, Since 10a looks shiny, it is possible to further increase the effect of visual beauty.
[0039]
Also, unevenness (concave, convex, or both) may be formed on the surface of a part or all of the bone 10 and the necessary region 12 formed of the transparent resin. A pattern or a pattern may be formed by the unevenness. When such irregularities are formed, light is reflected on the irregularities and emitted to the surface, and the irregularities appear to shine, so that the effect of visual beauty can be further increased.
[0040]
The light emitting element 18 may be constituted by a light emitting diode, and two or more light emitting diodes may be provided on the fan surface 8. In this case, two light emitting diodes 18a and 18b may be connected in parallel in opposite directions, as in the example shown in FIG. In this case, when the piezoelectric light emitting fan 2 is fanned, the light emitting diodes 18a and 18b emit light 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. May be connected in parallel. In this case, when the piezoelectric light emitting fan 2 is fanned, the light emitting diodes 18c and 18d and the light emitting diodes 18e and 18f emit light alternately.
[0042]
As shown in FIG. 9, three light emitting diodes 18g, 18h, and 18i are connected in series in the same direction, three light emitting diodes 18j, 18k, and 18l are connected in series in the same direction. May be connected in parallel in opposite directions. In this case, when the piezoelectric light emitting fan 2 is fanned, the group of the light emitting diodes 18g, 18h, 18i and the group of the light emitting diodes 18j, 18k, 18l alternately emit light.
[0043]
In the embodiment shown in FIG. 6 in which the plurality of bones 10 and the necessary region 12 are integrally formed of a transparent resin, the required region 12 may be provided with two or more light emitting elements 18 that emit light of different colors. good. In this case, since the luminescent colors are mixed at various ratios in the area of the necessary region 12 and the portions of the bones 10, it is possible to emit many colors and increase the effect of producing beauty. In this case, each light emitting element 18 may be configured by a light emitting diode, and the connection method shown in FIGS. 7 to 9 may be adopted.
[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 necessary region 12. In this case, since the three colors (three primary colors) are mixed at various ratios in the necessary area 12 and the portion of each bone 10, many colors such as rainbow colors are emitted, and the beauty is enhanced. The effect can be further increased. In this case, each light emitting element 18 may be configured by a light emitting diode, and the connection method shown in FIG. 9 may be adopted. For example, if the light emitting colors of the light emitting diodes 18g and 18j are red, the light emitting colors of the light emitting diodes 18h and 18k are green, and the light emitting colors of the light emitting diodes 18i and 18l are blue, when the piezoelectric light emitting fan 2 is fanned, the light emitting diode 18g , 18h, and 18i, and the three primary color groups of the light emitting diodes 18j, 18k, and 18l alternately emit light.
[0045]
As a modification of the embodiment shown in FIG. 6, the main area 12 is formed of a transparent resin, and the fan surface 8 is formed of one sheet using a soft and elastic material such as paper or a plastic sheet. It is formed without using a bone with a thin plate and attached to the tip of the required area 12 (for example, sandwiched and attached), and the light emitting element 18 is provided in the required area 12 and emitted from the light emitting element 18. Light may be introduced into the transparent resin. In this case, the light emitted from the light emitting element 18 passes through the transparent resin forming the required area 12 and is emitted to the outside from the tip 12a of the required area 12 which has an arc shape in this example. Since the tip 12a which has been made looks shining, the visual beauty can be further increased. In addition, since the fan surface 8 is formed of one sheet without using a bone and is softer than the necessary region 12, when the fan is fanned, the fan surface 8 does not respond to the swing of the handle 4 and the necessary region 12 portion. Since the swing of No. 8 comes with a delay, the generated wind is soft and gives a comfortable feeling.
[0046]
As described in the embodiment of FIG. 6, examples of the resin forming the necessary region 12, formation of irregularities on the surface of the necessary region 12, how to provide the light emitting elements 18 in the necessary region 12, The configuration, emission color, electric wiring method, and the like can 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. This is the case when the piezoelectric element 16 has one 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). I went about. Table 1 shows the ratio of the generated power. It was confirmed that the amount of generated electric power was larger in later examples.
[0048]
[Table 1]

[0049]
[Piezoluminescence support goods]
FIGS. 10 to 13 show an embodiment of a piezoelectric luminous support goods 30 which is used for support by shaking or hitting by a person and includes main bodies 32, 32a, 32b having cavities 34, 34a, 34b therein. It shows each form.
[0050]
FIG. 10 shows a bat-shaped piezoelectric light emitting support goods 30 in which a piezoelectric vibrating unit 35 in which the piezoelectric element 16 is attached to one end of a vibrating plate 36 is mounted so as to be offset from the cavity of the main body 32. The piezoelectric vibrating unit 35 is housed in one end (an end on the side where the piezoelectric element 16 is offset), and is fixed by a fixing portion 38. The diaphragm 36 has elasticity, and has a strip shape in this example. The vibrating plate 36 may be formed of a conductive metal plate and used also 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 of the piezoelectric element 16 are slightly separated from each other. This is to prevent the piezoelectric element 16 from being damaged by 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 of the piezoelectric vibration unit 35 in the vibration direction indicated by arrow B (that is, the vibration direction in the thickness direction of the vibration plate 36). 35 are provided apart from each other. The separation distance is set to a distance which does not hinder the free vibration (inertial vibration) of the piezoelectric vibration unit 35 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 projects in the cavity 34 in this example.
[0052]
Further, the light emitting element 18 that emits light by electric power output from the piezoelectric element 16 is provided on 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, let the light go outside. This makes it difficult for the light emitting element 18 to come off or break. These items are the same in other embodiments described later.
[0053]
The operation of the piezoelectric light emitting support goods 30 will be described. When the user holds the piezoelectric light emitting support goods 30 with the hand of the handle 31 and shakes or hits it at the time of watching sports or the like, the piezoelectric vibration unit 35 vibrates, The force by the vibration is applied to the piezoelectric element 16 to generate electric power, and the electric power causes the light emitting element 18 to emit light. This light emission can further enhance the sense of solidarity, satisfaction, and the like when cheering.
[0054]
Further, in the piezoelectric vibration unit 35, the piezoelectric element 16 is mounted so as to be shifted to one end side (fixed end side) of the vibration plate 36, and the vicinity where the piezoelectric element 16 is mounted is mainly bent and the piezoelectric element 16 is bent. Since the vibration force can be efficiently applied to the piezoelectric element 16, it is possible to increase the power generation energy of the piezoelectric element 16 and increase the light emission amount of the light emitting element 18.
[0055]
In addition, even if the user vigorously shakes or hits the main body portion 32 due to enthusiasm for support or the like, excessive vibration of the piezoelectric vibration unit 35 at that moment is prevented by the stopper 40. It is hard to break.
[0056]
Further, after the moment when the piezoelectric light emission support goods 30 are shaken or hit, the piezoelectric vibration unit 35 freely vibrates, so that the vibration duration is long, and therefore, the light emission amount of the light emitting element 18 can be seen visually. can get.
[0057]
As in the embodiment shown in FIG. 14, a constriction (constriction) 26 may be provided in a portion of the vibration plate 36 where the piezoelectric element 16 is provided. In this case, 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 near the free end which is the other end of the vibration plate 36 constituting the piezoelectric vibration unit 35. In this case, 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 is increased, thereby visually emitting light of the light emitting element 18. The effect of seeing a large amount increases.
[0059]
FIG. 11 shows a megaphone-type piezoelectric light-emitting support goods 30. The structure and operation and effect are substantially the same as those of the piezoelectric light-emitting support goods 30 of FIG.
[0060]
FIG. 12 shows a two-piece megaphone-type piezoelectric light-emitting support goods 30. The differences from the embodiment of FIGS. 10 and 11 will be mainly described. Two main bodies 32a and 32b each having a main body 34b are connected to each other by a shaft 46 so as to be openable and closable as shown by an arrow C. The piezoelectric light emitting support goods 30 are shaken or hit with the hand at the handle 31 to move the two main body parts 32a and 32b in the direction of arrow C to collide with each other to produce sound and to provide support.
[0061]
In the case of this embodiment, the piezoelectric vibration unit 35, the stopper 40, and the like are provided in the cavity 34a of the one main body 32a. However, one of the stoppers 40 (in this example, on the inner side close to the inner wall surface 33a) does not have a protruding portion, and may also serve as the inner wall surface 33a of the main body 32a as in the embodiment shown in FIG. good. Further, in order to prevent the front end portion of the piezoelectric vibration unit 35 from hitting the inner wall surfaces of the two main body portions 32a and 32b when the both main body portions 32a and 32b are closed, as shown in this example, both inner wall surfaces 33a and 33b are used. May be provided with openings 44a and 44b, respectively. Further, the light emitting element 18 may be provided on both the main bodies 32a and 32b, or may be provided on only one of the main bodies.
[0062]
FIG. 13 shows a piezo-luminous support goods 30 of the rhythmic body (hail-to-be) type. Mainly the differences from the embodiment of FIG. 12 will be described. 32a and 32b are connected by a fixing portion 38, and have a structure that opens and closes as shown by an arrow C by the elasticity of members of the main body portions 32a and 32b. Both body parts 32a, 32b may be hand-shaped. The piezoelectric light emitting support goods 30 are shaken or hit with the hand at the handle 31 to move the two main body parts 32a and 32b in the direction of arrow C to collide with each other to produce sound and to provide support. Other points are the same as those of the embodiment of FIG.
[0063]
The amount of generated power (voltage × current × time) of the piezoelectric element 16 when a constant vibration energy was given to the piezoelectric light emission support goods 30 shown in FIG. 10 was measured. This is the case when the piezoelectric element 16 has one unimorph structure (Example 4), when the piezoelectric element 16 has two bimorph structures (Example 5), and when the constriction 26 is provided on the diaphragm 36 (Example 6). ). Table 2 shows the ratio of the generated power. It was confirmed that the amount of generated electric power was larger in later examples. It should be noted that substantially the same results as in Table 2 were obtained in the piezoelectric light emitting display goods 50 described later.
[0064]
[Table 2]

[0065]
FIG. 22 shows the results of measuring the vibration duration when the piezoelectric vibration unit 35 is freely vibrated after applying a constant impact force to the piezoelectric light emission support goods 30 shown in FIG. 10 while changing the weight of the weight 42. Shown in It can be seen that the vibration duration is increased by making the weight 42 heavier, and it is also possible to realize a long vibration duration of 0.2 seconds to 0.6 seconds, and eventually a light emission time of the light emitting element 18. It can be easily understood that the same result can be obtained in the piezoelectric emission support goods 30 shown in FIGS.
[0066]
[Piezoluminescence 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 pattern. The piezoelectric light emitting display goods 50 are provided with a container 52 having a tiger pattern 56 displayed on the surface thereof and having an opening 54 at a place avoiding the pattern 56 (in this example, on the side surface). The above-described piezoelectric vibration unit 35 having the piezoelectric element 16 mounted to be offset to one end of the vibration plate 36 is housed in the container 52, and the piezoelectric vibrating unit 35 is provided with a piezoelectric vibrating unit 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 vibration plate 36 of the piezoelectric vibration unit 35 is put out of the container 52 through the opening 54 to be manually pushed. 58 are formed. Further, a plurality of (two in this example) light emitting elements 18 that emit light by the electric power output from the piezoelectric element 16 are connected to the tiger's eye part more specifically so as to constitute a part of the picture 56. They are arranged to make up.
[0067]
According to the piezoelectric light emitting display goods 50, when a person pushes the hand pushing portion 58 in the thickness direction shown 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 so as to form the tiger's eye emit light and blink, that is, the tiger's eye blinks. This enhances the impression of the picture 56, and can provide a visual beauty effect. In other words, you can create unusual and interesting display effects, which are fun to use.
[0068]
FIG. 16 shows an example of a wiring diagram when the two light-emitting elements 18 are constituted by light-emitting diodes. Here, two light emitting diodes 18 are connected in series in the same direction. In this case, the tiger's eyes blink simultaneously.
[0069]
The number of the patterns 56 and the number of the light emitting elements 18 on the surface of the container 52 may be other than the embodiment shown in FIG. An example will be described below.
[0070]
The piezoelectric light-emitting display goods 50 of FIG. 17 includes a plurality of light-emitting elements constituting a first (inner) group and a second (outer) light-emitting element so as to constitute a part of a firework pattern 56. This is an embodiment in which the light emitting elements 18n forming a group are separately arranged.
[0071]
By operating the hand pressing portion 58 as described above, power is output from the piezoelectric element 16 and the plurality of light emitting elements 18m and 18n emit light and blink. This enhances the impression and can produce a visual beauty effect. In other words, you can create unusual and interesting display effects, which 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 constituted by light emitting diodes. Here, the plurality of light emitting diodes 18m forming the first group are connected in series in the same direction, the plurality of light emitting diodes 18n forming the second group are connected in series in the same direction, and both light emitting diode columns are connected. 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 of the inner group and the light-emitting elements (light-emitting diodes) 18n of the outer group alternately blink, so that the movement of the picture 56 Expressions can be added. In other words, it is possible to express a movement in which fireworks spread one after another. Therefore, the effect of producing visual beauty 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 in series is increased, for example, as shown in FIG. It was confirmed that the characteristics were not deteriorated. This is because connecting a plurality of light emitting elements in series rather than connecting them in parallel increases the load impedance and facilitates matching with the output impedance of the piezoelectric element 16. According to an experiment, it was found that the application from 2 series to about 25 series can be applied without any problem.
[0074]
The piezoelectric light emitting display goods 50 shown in FIG. 18 include a plurality of light emitting elements which constitute a part of the large letter picture pattern 56a so as to constitute a part of the capital letter bonfire pictures 56a and 56b. In this embodiment, the light emitting elements 18n of a group constituting a part of the pattern 56b of Higashiyama are arranged separately.
[0075]
By operating the hand pressing portion 58 as described above, 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, you can create unusual and interesting display effects, which are fun to use.
[0076]
Also in the case of this embodiment, the plurality of light emitting elements 18m and 18n may be constituted by light emitting diodes and the connection shown in FIG. 19 may be adopted. In this case, the light-emitting elements (light-emitting diodes) 18m of the group of the picture 56a of large characters and the light-emitting elements (light-emitting diodes) 18n of the group of the picture 56b of Higashiyama blink alternately, so that the movement is expressed in the picture. Can be added. Therefore, the effect of producing visual beauty can be further increased.
[0077]
In each of the above-described piezoelectric light emitting display goods 50, as described above, the constriction 26 (see FIG. 14) may be provided at the portion where the piezoelectric element 16 of the vibration plate 36 of the piezoelectric vibration unit 35 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 of the piezoelectric light emitting display goods 60 described below (see FIG. 21).
[0078]
It should be noted that some or all of the plurality of light emitting elements 18, 18m, 18n in each of the piezoelectric light emitting display goods 50 are arranged so that when they emit light, they appear to form part of the patterns 56, 56a, 56b. You may leave it. For example, the surface of the container 52 displaying the patterns 56, 56a, 56b may be transparent or translucent, and the light emitting elements 18, 18m, 18n may be arranged 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 the 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 (corresponding to a hand pressing portion 58) of a vibration plate 36 constituting the piezoelectric vibration unit 35. (End) 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 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, it is optional whether or not a pattern is displayed on the surface of the container 52 and whether or not the light emitting element 18 is arranged so as to constitute a part of the pattern.
[0080]
The oscillating body 62 oscillates by a natural force such as a flow of a wind or a flow of water. More specific examples include tree branches and streamers.
[0081]
According to the piezoelectric light emitting display goods 60, when the rocking body 62 rocks in the thickness direction of the diaphragm 36 shown by the arrow E by natural force such as a flow of wind or water, the rocking body 62 responds to the rocking. When a vibration force is applied to the piezoelectric vibration unit 35, the power is output from the piezoelectric element 16 and the light-emitting element 18 emits light and blinks, so that a visual beauty effect can be obtained. In other words, a strange and interesting display effect can be obtained. For example, an effect as if a firefly is blinking can be obtained.
[0082]
As in the case of the piezoelectric light emitting display goods 60 shown in FIG. 21, one end of the vibration plate 36 constituting the piezoelectric vibration unit 35 is attached to the rocking body 62 without providing the container 52, and the vicinity of the other end of the vibration plate 36 is provided. The light emitting element 18 may be attached to the light emitting element. By doing so, the structure can be simplified. The operation and effect of the piezoelectric light emitting display goods 60 are substantially the same as those of FIG.
[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, and may be divided into two groups as shown in FIG. 19 and connected. For example, when the swinging body 62 swings, the light emitting elements 18 of the two groups can emit light alternately, so that a more effective effect such as a three-dimensional effect can be obtained.
[0084]
【The invention's effect】
The present invention is configured as described above, and has the following effects.
[0085]
According to the invention as set forth in claim 1, at least the fan of the handle is made of plastic, unlike when the handle is made of bamboo or wooden when the fan is fanned, the vicinity between the tip and the center of the handle is large. It bends and deforms. Since at least a part of the piezoelectric element is provided there, the power generation energy of the piezoelectric element can be increased and the light emission amount of the light emitting element can be increased.
[0086]
According to the invention as set forth in claim 2, at least the fan of the handle is made of plastic, unlike when the handle is made of bamboo or wood, between the fixing portion of the handle and the center portion in the handle when the fan is blown. The vicinity is greatly bent and deformed. Since at least a part of the piezoelectric element is provided there, the power generation energy of the piezoelectric element can be increased and the light emission amount of the light emitting element can be increased.
[0087]
In addition, since the fulcrum of the vibration of the handle when fanning is uniquely determined by the fixing portion and the position where the handle is held is not affected, the force at which the fan is fanned 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]
In addition, since the opening of the handle functions as a stopper that limits the amplitude of the fan, even if a person blows with an excessive force, the piezoelectric element can be prevented from being damaged.
[0089]
According to the third aspect of the present invention, by providing the constriction (constriction) in the portion where the pattern piezoelectric element is provided, stress concentrates on the piezoelectric element portion when fanning the piezoelectric light emitting fan. There is an additional effect that the power generation energy of the element can be further increased and the light emission amount of the light emitting element can be further increased.
[0090]
According to the invention described in claim 4, the light emitted from the light emitting element passes through the transparent resin, is emitted to the outside from the tip of the required area or the tip of each bone, and the tip looks shining, The further effect that the effect of visual beauty can be further increased.
[0091]
According to the fifth aspect of the invention, the light emitted from the light emitting element passes through the transparent resin forming the required area and is emitted to the outside from the tip of the required area. Because the fan surface is softer than the required area, and when the fan is blown, the swing of the fan surface is delayed with respect to the swing of the pattern and the required area Therefore, the generated wind is soft and gives a comfortable sensation.
[0092]
According to the invention described in claim 6, since the luminescent colors are mixed at various ratios in the necessary region and each bone portion, it is possible to emit many colors and increase the effect of producing beauty. The further effect is achieved.
[0093]
According to the seventh aspect of the present invention, three colors (three primary colors) are mixed at various ratios in the necessary area and each bone portion, so that many colors such as iridescent light are emitted. It is possible to further enhance the effect of beauty.
[0094]
According to the invention as set forth in claim 8, when the piezoelectric emission support goods are shaken or hit with the hand, the piezoelectric vibration unit vibrates, and the force due to the vibration is applied to the piezoelectric element, and the piezoelectric element generates power. The light emitting element emits light by the power. This light emission can further enhance the sense of solidarity, satisfaction, and the like when cheering.
[0095]
Further, in this piezoelectric vibration unit, the piezoelectric element is mounted so as to be shifted to one end side (fixed end side) of the vibration plate, and the vicinity where the piezoelectric element is mounted mainly bends to efficiently apply the vibration force to the piezoelectric element. Since it can be added well, it is possible to increase the power generation energy of the piezoelectric element and increase the light emission amount of the light emitting element.
[0096]
In addition, even if the user shakes or hits the main body part strongly for enthusiasm for support or the like, excessive vibration of the piezoelectric vibration unit at that moment is prevented by the stopper, so that the piezoelectric vibration unit is not easily broken.
[0097]
Further, after the moment when the piezoelectric light emission support goods are shaken or hit, the piezoelectric vibration unit freely vibrates, so that the vibration duration is long, and therefore, the effect that the light emission amount of the light emitting element can be visually visually observed is large.
[0098]
According to the ninth aspect of the present invention, since the constriction (constriction) is provided in the portion of the diaphragm where the piezoelectric element is provided, stress concentrates on the portion of the piezoelectric element when the piezoelectric vibration unit vibrates. Further, there is an additional effect that 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.
[0099]
According to the tenth aspect of the present invention, the addition of the weight increases the vibration period of the piezoelectric vibration unit and the vibration duration, so that the light-emitting time of the light-emitting element is increased, and thereby the light-emitting element is visually recognized. There is an additional effect that the effect that a large amount of light is seen increases.
[0100]
According to the eleventh aspect of the present invention, when a person presses the hand pressing portion to apply vibration or impact to the piezoelectric vibration unit, power is output from the piezoelectric element according to the vibration or the like, and a part of the picture is formed. Since the plurality of light emitting elements arranged to emit light emit light, it is possible to produce a visual beauty effect. In other words, you can create unusual and interesting display effects, which are fun to use.
[0101]
According to the twelfth aspect of the present invention, when the oscillating body swings by a natural force such as a flow of a wind or a flow of water, a force is applied to the piezoelectric vibrating unit in accordance with the swing, and power is output from the piezoelectric element. Is output and the light-emitting element emits light, so that a visual beauty effect can be obtained. In other words, a strange and interesting display effect can be obtained.
[0102]
According to the thirteenth aspect of the present invention, since the constriction (constriction) is provided at the portion of the vibration plate where the piezoelectric element is provided, the stress is concentrated on the portion of the piezoelectric element when the piezoelectric vibration unit vibrates. Further, there is an additional effect that 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.
[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 of a piezoelectric element and a light emitting element having a unimorph structure.
FIG. 3 is a diagram showing an example of a wiring diagram of a bimorph structure piezoelectric element 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 a section FF in FIG. 1;
FIG. 5 is a front view partially showing an example in which a handle of a fan is provided with a constriction.
FIG. 6 is a front view partially showing still another embodiment of the piezoelectric light emitting fan according to the present invention.
FIG. 7 is a diagram illustrating an example of a wiring diagram when two light emitting diodes are provided as light emitting elements.
FIG. 8 is a diagram illustrating an example of a wiring diagram when four light emitting diodes are provided as light emitting elements.
FIG. 9 is a diagram illustrating an example of a wiring diagram in a 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-shaped piezoelectric light emission support good.
FIG. 11 is a cross-sectional view showing an example of a megaphone-type piezoelectric light emitting support goods.
FIG. 12 is a cross-sectional view showing an example of a two-piece megaphone type piezoelectric light emitting support goods.
FIG. 13 is a cross-sectional view illustrating an example of a time-shape type piezoelectric 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 product in which a light emitting element forms an eye portion of a tiger pattern.
16 is a diagram illustrating an example of a wiring diagram in the case where a light emitting diode is used as a light emitting element in the embodiment of FIG.
FIG. 17 is a plan view illustrating an example of a piezoelectric light emitting display product in which a light emitting element forms a part of a picture of a firework.
FIG. 18 is a plan view showing an example of a piezoelectric light emitting display product in which a light emitting element forms a part of a picture of a bonfire in a capital letter.
FIG. 19 is a diagram showing an example of a wiring diagram in the case where a light emitting diode is used as a light emitting element in the embodiments of FIGS. 17 and 18;
FIG. 20 is a perspective view showing one embodiment of a piezoelectric light emitting display good attached to an oscillator.
FIG. 21 is a perspective view showing another embodiment of the piezoelectric light emitting display goods attached to the rocking body.
FIG. 22 is a graph showing an example of a result of measuring a vibration duration when the piezoelectric vibration unit constituting the piezoelectric light emission support goods shown in FIG. 10 is freely vibrated while changing the weight of the weight.
[Explanation of symbols]
2 Piezoelectric fan
4 patterns
8 Fan surface
10 bones
12 required areas
16 Piezoelectric element
18 Light-emitting element
20 handles
26 Constriction
30 Piezoelectric Lighting 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 Push section
60 Piezoelectric display goods
62 rocking body

Claims (13)

A fan surface is connected to the tip of the handle, and at least the handle is made of plastic fan, and the handle is provided with a piezoelectric element for converting mechanical energy into electric energy, and at least a part of the piezoelectric element is a tip of the handle. A piezoelectric light emitting fan provided so as to be located between a portion and a central portion, and a light emitting element which emits light by electric power output from the piezoelectric element is provided on the fan surface. The handle is formed by connecting a fan surface to the tip of the handle, and at least the handle is made of plastic fan, and the handle is stored in a cylindrical handle having an opening at the tip, and is opposite to the tip of the handle. The end near the side is fixed by a fixing portion provided in the handle, and the handle is provided with a piezoelectric element for converting mechanical energy into electric energy, and at least a part of the piezoelectric element is located at the center with the fixing portion of the handle. A piezoelectric light-emitting fan provided so as to be located between the fan-shaped surface and a light-emitting element that emits light by electric power output from the piezoelectric element. 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. It has a plurality of bones constituting the fan surface and a necessary region for collecting them together and joining them to the tip of the handle, and the bones and the necessary regions are integrally formed of a transparent resin, and 4. The piezoelectric light emitting fan according to claim 1, wherein the light emitting element is provided in the necessary area, and light emitted from the light emitting element is introduced into the transparent resin. The fan surface has an important area to be joined to the tip of the handle, which is formed of a transparent resin, and the fan surface is formed by a single sheet using an elastic material such as paper or a plastic sheet. The light emitting element is formed in the required area, and the light emitting element is provided in the required area, and light emitted from the light emitting element is introduced into the transparent resin. The piezoelectric light emitting fan described in 1, 2, or 3. The piezoelectric light emitting fan according to claim 4, wherein two or more light emitting elements that emit light of different colors are provided in the main area. 7. The piezoelectric light emitting fan according to claim 4, wherein the light emitting element that emits red light, the light emitting element that emits green light, and the light emitting element that emits blue light are provided in the main area. In a support product that is used for support by shaking or hitting by a person and includes a main body having a cavity therein, a piezoelectric element that converts mechanical energy into electric energy is biased toward one end of the diaphragm. The piezoelectric vibrating unit is mounted in the cavity of the main body, and one end of the piezoelectric vibrating unit is fixed. Excessive vibration of the piezoelectric vibrating unit is provided on both sides in the vibration direction of the piezoelectric vibrating unit. A piezoelectric emission supporting goods, characterized in that a stopper for blocking is provided separately from the piezoelectric vibration unit, and a light emitting element which emits light by electric power output from the piezoelectric element is provided in the main body. The piezoelectric emission support goods according to claim 8, wherein a constriction is provided in a portion of the vibration plate where the piezoelectric element is provided. 10. The piezoelectric emission support goods according to claim 8, wherein a weight is provided near a free end which is the other end of the diaphragm. A piezoelectric vibrating unit in which a piezoelectric element for converting mechanical energy into electric energy is attached to one side of a vibration plate in a container having a pattern displayed on its surface and having an opening at a place avoiding the pattern. The piezoelectric vibrating unit is fixed at one end by a fixing portion provided in the container, and the other end of the vibrating plate of the piezoelectric vibrating unit is moved out of the container through the opening to push the hand. And a plurality of light emitting elements that emit light by electric power output from the piezoelectric element are arranged so as to constitute a part of the picture. A piezoelectric vibrating unit having a piezoelectric element for converting mechanical energy into electric energy attached to the diaphragm, and a light emitting element for emitting light by electric power output from the piezoelectric element; one end of the diaphragm of the piezoelectric vibrating unit Is mounted on a rocking body that rocks by natural force. The piezoelectric light emitting display product according to claim 11, wherein a constriction is provided at a portion of the diaphragm where the piezoelectric element is provided.

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