JP3672700B2

JP3672700B2 - Screen with sensory device

Info

Publication number: JP3672700B2
Application number: JP21906797A
Authority: JP
Inventors: 明石川
Original assignee: 明石川
Priority date: 1997-07-29
Filing date: 1997-07-29
Publication date: 2005-07-20
Anticipated expiration: 2017-07-29
Also published as: JPH1152490A

Description

【０００１】
【発明の属する技術分野】
本発明は、映像に合わせて流される音声中、超低周波音の再生時に臨場感を向上させる様にした体感装置付スクリーンに関するものである。
【０００２】
【従来の技術】
従来、映画は映像と効果音を含む音声から成り、映像はスクリーンに投影されると共に、映像に合わせた音声が音響再生装置から流され、スクリーンは大型化されると共に、音声も改良が加えられている。
そして、音響再生装置は、音声信号読取・再生回路、アンプ及びスピーカーで基本的に構成され、音声信号読取・再生回路で発生した電子信号を、アンプで高域、中域、低域の周波数帯域ごとに電子信号を分離・増幅し、夫々の帯域毎の周波数の電子信号を高音専用のトゥイーター、中音専用のスコーカー及び低音専用のウーハーのスピーカーに送信し、スピーカーの振動板（コーン紙）を振動させ、振動板の前面にある空気を更に振動させて空気密度の粗密変化を起こし、音波を発生させていた。
【０００３】
かかる方式による音響再生装置にあっては、元々低音をきれいに或いは大音響として再生することが容易でなかったり、低音の緩慢な空気密度の粗密変化が充分に伝幡されない等の理由から、低音を聴取可能であったとしても、身体全体で受け取められず、臨場感に乏しい欠点を有していた。
従って、映像の大型化、大迫力化に比して、音声、臨場感が伴わなかった。
【０００４】
【発明が解決しようとする課題】
本発明は、視聴覚者の周囲の空気が振動することにより発生する体感度を増加させて、映像と音声のマッチングで臨場感、視聴感覚を向上させる様にした体感装置付スクリーンを提供せんとするものである。
【０００５】
【課題を解決するための手段】
本発明は、上記従来技術に基づく、特に低音帯域の音響再生時に臨場感が乏しく、映像に比して音声が付いていけない課題に鑑み、映写装置、音響再生装置に加えて、スクリーンに体感振動装置の振動伝達板を取付け、発振回路の振動を検出する検出手段と、振動伝達板を大振幅で強烈に振動させる振動手段と、検出手段の信号で振動手段を作動させる連動手段とで体感振動装置を構成することによって、発振回路の振動に連動して、体感振動装置の振動伝達板及びスクリーンを大振幅で強烈に振動させ、空気の大きな粗密変化を視聴者に伝幡させ、身体全体で空気振動を体感させ、映像と音声をマッチングさせて臨場感を向上する様にして、上記課題を解決せんとしたものである。
【０００６】
【発明の実施の形態】
以下本発明の一実施例を図面に基づいて説明すると、
図１、３に示す様に、前後振動自在に取付けたスクリーン１の背面側に、音響再生装置（図示せず）と連動作動する体感振動装置２を設け、該体感振動装置２は、音響再生装置と連動する発振回路と成るスピーカー３と、該スピーカー３の振動を検出する検出手段４と、スクリーン１の背面に取付けた振動伝達板５を振動させる振動手段６と、検出手段４と振動手段６を連動させる連動手段７とで構成されている。
【０００７】
詳細を説明すると、図１に示す様に、スクリーン１の適宜位置に取付けた保持部８、8aを天井（図示せず）等に取付けた支持リンク９、9aの下端に取付けて、スクリーン１を前後振動自在に設置し、スクリーン１の背面中央部に振動伝達板５を取付けている。
尚、スピーカー３等を含む体感振動装置２は１基のものをスクリーン１に取付けたものを図示したが、１枚のスクリーン１に２基以上の体感振動装置２を設置しても良く、又体感振動装置２における振動伝達板５を省略して、後述するスクリーン１と伝導材15、32を直結しても良い。
【０００８】
12はスクリーン１の背面側の床面（図示せず）上に設置したモーターであり、該モーター12は常時一方向への回転状態と成し、モーター12の上端に駆動車14となるプーリーを取付けており、駆動車14の直径Ｄを適宜大きさと成している。
【０００９】
図１、２に示す様に、15は振動伝達板５の背面側に水平状態に設置した伝導材であり、該伝導材15は１本ないしは複数本のベルトを略矩形状、略長円状に形成し、略平行状態の長手の一方を往動伝導部16と、他方を復動伝導部17と夫々成し、２本の往復動伝導部16、17の間隔Ｌを駆動車14の直径Ｄより大きな幅を有する様に配置すると共に、２本の往復動伝導部16、17を、駆動車14に接離自在な様に、駆動車14の外側に配置している。
【００１０】
又、伝導材15の前後両端部に、一対の往復動伝導部16、17に間隔Ｌを設ける様に位置設定材18、19を設けており、好ましくは伝導材15の前後両側内側に緩衝性又は滑り性（抵抗がない性質）を具備した材質のもので位置設定材18、19を形成している。
【００１１】
又、伝導材15の前端外側に連結材20を固定すると共に、該連結材20の先端に振動伝達板５を固定し、又伝導材15の後端外側に保持部21を設けると共に、該保持部21を天井等の適宜部材に取付けた支持リンク23で保持し、モーター12で常時駆動されている駆動車14に伝導材15が非作動状態で接触しない様にすると共に、連動手段７の作動時には接触する様に成している。
【００１２】
24はスピーカー３と往復動伝導部16、17を接触させる連動手段７における連動材であり、該連動材24の基端をスピーカー３の振動板25に固定すると共に、往復動伝導部16、17の反対側で、連動材24の他端をスライド軸受26に挿通して、連動材24をスピーカー３の振動板25の振動に応じてスライド移動自在と成している。
【００１３】
又、往復動伝導部16、17の外側において、往復動伝導部16、17に接離自在と成した加圧車27、28を、往復動伝導部16、17の上方に設置された連動材24の下側適所位置に回転自在に取付けている。
【００１４】
又、図３、４に示す第２番目の実施例にあっては、２個のモーター30、30a を同回転方向で夫々設置すると共に、モーター30、30a の上端に所定間隔Ｌ１を有した一対の駆動車31、31a を設置している。
【００１５】
そして、駆動車31、31a の中間に棒状の往復動連動材32を配置し、該往復動連動材32の前端を振動伝達板５に取付けると共に、後端を支持リンク23を介して保持し、往復動連動材32の表裏面が一対の駆動車31、31a のどちらか一方に接離自在と成している。
【００１６】
又、スピーカー３に連結した連動材24には、往復動連動材32の表裏面の一方に接離自在と成した一対の加圧車27、28を回転自在に取付けている。
【００１７】
尚、１、２番目の実施例は共に、復動用の加圧車28は必ずしも必要でなく、伝導材15又は往復動連動材32の復元性で対応しても良い。
【００１８】
次に本発明に係る体感装置付スクリーン（第１、２番目の実施例）の作用について説明すると、
図１、２に示す第１番目の実施例にあっては、モーター12の駆動車14を反時計方向（左回り）に常時回転状態と成し、スピーカー３に凸形の波形の低周波の音声電流（電子信号）が流れると、スピーカー３の振動板25が図中Ａ方向に動き、振動板25に連動材24で連結された一方の加圧車27が伝導材15の往動伝導部16を押圧する。
【００１９】
そして、押圧された往動伝導部16は、その一部が撓んだり、変形し、或いは支持リンク23の支持状態に応じて全体的に伝導材15が傾斜移動して、往動伝導部16は駆動車14の一面に接触押圧される。
【００２０】
この時、駆動車14は反時計方向に回転しているので、往動伝導部16は図中Ａ１の左方向に強烈に移動させられ、往動伝導部16の先端に連結されている振動伝達板５は図中Ａ２の左方向に押し出され、従って、モーター12の駆動力は振動伝達板５を介してスクリーン１の前面側の押し出し方向に転換され、強烈な正圧の空気密度の変化を発生させる。
【００２１】
次の瞬間、凹形の波形の低周波の音声電流が流れると、スピーカー３の振動板25が図中Ｂ方向に動き、連動材24、他方の加圧車28を介して復動伝導部17が押圧されて撓んだり、変形し、復動伝導部17は駆動車14に接触押圧され、又前記の一方の加圧車27の作用は消滅する。
【００２２】
この時、駆動車14は反時計方向に回転しているので、復動伝導部17は図中Ｂ１の右方向に移動させられ、振動伝達板５及びスクリーン１も図中Ｂ２の右方向に瞬時に引き戻され、強烈な負圧の密気密度の変化を発生する。
【００２３】
上記の様な凸形と凹形の波形の音声電流の繰り返しにより、スピーカー３の振動板25と共に、振動伝達板５及びスクリーン１は激しい正負圧、即ち、空気振動を発生する。
【００２４】
尚、スピーカー３は低音用のウーハーで低音の再生を行っているが、スクリーン１、スピーカー３、検出手段４、振動伝達板５、連動手段７等の慣性質量が存在するので、体感振動装置２で音響以外に再生可能な周波数は、スピーカー３よりも低周波を主体としたり、一部の低周波となる。
【００２５】
又、第２番目の実施例にあっては、２個のモーター30、30a の中立位置に存在する往復動連動材32の表裏面に対して、スピーカー３の作動による一対の加圧車27、28の一方が接触押圧することにより、往復動連動材32は２個のモーター30、30a の駆動車31、31a のどちらか一方に接触し、その結果、振動伝達板５及びスクリーン１は押圧されるか、引き戻され、これらが反復連続することにより、強烈な空気振動が発生する。
【００２６】
又、連動材24を駆動させる発振回路をスピーカー３の振動板25と成したが、かかる方式に限定されることなく、スピーカー３へ送信される電子信号で直接駆動されるソレノイドを発振回路と成し、電子信号で直接連動材24を駆動しても良い。
【００２７】
次に、第１、２番目の実施例に代わる効率的な振動構成を有した２種類の実施例について説明する。
図５に示す第３番目の実施例は、図１、２に示す実施例の改良例である。
図１、２に示すものでは、伝導材15に対して連動材24が直交方向に移動するものを示したが、図５に示すものでは、伝導材15に対して発振回路（スピーカー３）に連繋させた連動材24は傾斜方向に移動すると共に、駆動車14と伝導材15の間に関連させて連動材24の一対の従動車127 、128 （第１、２実施例の加圧車27、28と同一構成のもの）を配置し、更に、連動材24の他端を支持するスライド軸受26を支持リンク23で保持している。
【００２８】
そして、駆動車14、従動車127 、128 、伝導材15、往復動伝導部16、17の関連配置としては、駆動車14の中心位置上に連動材24が位置し、駆動車14の外周が回転して往動伝導部16に近づく位置で、駆動車14の外周と往動伝導部16の内面の間に夫々非接触状態で接離自在に一方の従動車127 を配置し、駆動車14を挟んだ対向位置に他方の従動車128 を配置している。
【００２９】
かかる構成により、スピーカー３の振動板25が図中Ａ方向に動くと、連動材24に支持されている一方の従動車127 は駆動車14に接触し、従動車127 は自転すると共に、図中Ａ′方向へ連動材24と共に往動伝導部16の方向へ若干移動し、従動車127 の外周は往動伝導部16の内面に接触し、往動伝導部16は図中Ａ１の右方向に強烈に移動させられ、振動伝達板５及びスクリーン１は図中Ａ２の右方向に引き戻される。
【００３０】
次の瞬間には、図中、Ｂ、Ｂ′、Ｂ１、Ｂ２方向に示す様に、従動車128 が駆動車14及び復動伝導部17に接触して振動伝達板５及びスクリーン１を押し出し、これらが反復連続することにより、強烈な空気振動が発生する。
【００３１】
又、図６に示す第４番目の実施例は、図３、４に示す実施例の改良例である。図３、４に示すものでは、往復動連動材32に対して連動材24が直交方向に移動するものを示したが、図６に示すものでは、往復動連動材32に対して発振回路（スピーカー３）に連繋させた連動材24は傾斜方向に移動すると共に、往復動連動材32と駆動車31、31a の間に関連させて連動材24の一対の従動車127 、128 を配置している。
【００３２】
そして、駆動車14、従動車127 、128 、駆動車31、31a 、往復動連動材32の関連配置としては、往復動連動材32と一対の駆動車31、31a の中心の交差位置上に連動材24が位置し、駆動車31a の外周が回転して往復動連動材32に近づく位置で、駆動車31の外周と往復動連動材32の側面の間に夫々非接触状態で接離自在に一方の従動車127 を配置し、対向位置に他方の従動車128 を配置している。
【００３３】
かかる構成により、スピーカー３の振動板25が図中Ａ方向に動くと、連動材24に支持されている一方の従動車127 は一方の駆動車31a に接触開始すると共に、往復動連動材32方向に近づく。
更なる従動車127 の移動により、従動車127 は自転しながら往復動連動材32に接触し、往復動連動材32は図中Ａ１の左方向に強烈に移動させられ、振動伝達板５及びスクリーン１は図中Ａ２の左方向に押し出される。
【００３４】
上記の状態において、従動車127 が往復動連動材32に近づき、接触し、押圧すると、往復動連動材32は図中Ａ′方向に若干移動して他方の駆動車31にも接触し、上記往復動連動材32の押し出し作用は他方の駆動車31でも行われ、往復動連動材32は２個の駆動車31、31a で強烈に作動させられる。
次の瞬間には、図中、Ｂ、Ｂ′、Ｂ１、Ｂ２方向に示す様に、従動車128 が駆動車31、31a 及び往復動連動材32に接触して振動伝達板５及びスクリーン１を引き戻し、これらが反復連続することにより、強烈な空気振動が発生する。
【００３５】
又、簡易映像ソフト、或いはＴＶ放送、ＬＤ（レーザーディスク）、ＤＭＤ（デジタルマルチディスク）、テレビゲーム等で提供されるものにおける音声信号では、数ヘルツ〜１００ヘルツ程度の超低周波は元来カットされていることが多く、これらの音源では、その他の周波数信号だけで再生、入力、出力されている。
よって、低音聴取が更に困難となったり、体感、臨場感、低周波音場の設定は不可能に近くなっている。
【００３６】
そこで、上述の基本的な振動構成に付加し、映像にマッチングさせる音声信号の択一構成について説明する。
図１に示す様に、発振回路であるスピーカー３への入力信号回路Ｓに周波数変換回路Ｓ１及び増幅回路Ｓ２を介入接続している。
周波数変換回路Ｓ１は周波数を低減させるパルスコンバータであり、音声信号読取・再生回路又はアンプから送信された可聴周波数帯の音声信号が周波数変換回路Ｓ１に入力されると、音声信号の周波数を数分の１〜数百分の１に低減変換し、数ヘルツ〜数百ヘルツの低周波信号を創出し、必要に応じて増幅回路Ｓ２（アンプ）で振幅を増加させ、スピーカー３へ送信する。
【００３７】
かかる構成により、音響再生装置で可聴の低周波の再生と同時に、近似位置で体感振動装置１が作動することとなる。
又、周波数変換回路Ｓ１における周波数の低減率は、例えば数分の１〜数百分の１のものを説明したが、周波数変換回路Ｓ１に選択スイッチＳ３を設けて、低減率の設定を自在と成すことが好ましい。
【００３８】
【発明の効果】
要するに本発明は、スクリーン１を前後振動自在に取付けると共に、スクリーン１の裏面に振動伝達板５を取付け、スクリーン１の背面側に設置した発振回路の振動を検知する検出手段４を設け、一方ボックス内部に設けたモーター12、30、30a の駆動車14、31、31a に接離自在に伝導材15（往復動伝導部16、17)、往復動連動材32を設置すると共に、伝導材15、往復動連動材32の一端を振動伝達板５に固定し、検出手段４の検知により駆動車14、31、31a に伝導材15、往復動連動材32を接触させる連動手段７を設けたので、映像及び音声の再生時に、音響発生装置に連動させた発振回路の振動に応じて、モーター12、30、30a の駆動力で振動伝達板５及びスクリーン１を強烈に振動させることが出来、音響発生装置の音声と共に、スクリーン１で大きな空気振動を発生させて低周波を視聴者に体感させることが出来る。
又、振動伝達板５の駆動はモーター12、30、30a の駆動の切替作動であるために、振動伝達板５及びスクリーン１の振動を強烈な大振幅のものとすることが出来るため、空気の粗密変化の振動を視聴者に感取させることが出来、従って、スクリーン１の映像の動きに合わせて映像面から空気振動が視聴者に到達することにより、非常にリアルかつダイナミックな音場表現が出来、立体映像の時は、更に現実感を増加させることが出来、映像、音声、音場をマッチングさせて、従来の音声だけでは困難であった臨場感を向上させることが出来る。
又、スクリーン１に体感振動装置２を取付けるに際して、振動伝達板５を介在させることにより、大面積のスクリーン１を効率良く振動させることが出来る。
【００３９】
又、検出手段４は、スピーカー３の振動板25に連動材24を取付けて構成したので、発振回路源はスピーカー３の追加設置だけで良く、安価、簡易に体感振動装置２を設定することが出来る。
【００４０】
又、検出手段４は、スピーカー３へ送信される電子信号により駆動されるソレノイドで連動材24を駆動させる様にしたので、検出手段４の駆動部分を小型軽量化することが出来、又スピーカー３の振動板25の振動を検知するよりも、確実に大きな信号を発生することが出来る。
【００４１】
又、常時回転する駆動車14に、接離自在に一対の往復動伝導部16、17を夫々設け、往復動伝導部16、17の一端を振動伝達板５に固定し、連動材24に往復動伝導部16、17に夫々接離自在な一対の加圧車27、28を夫々設けたので、体感振動装置２を構成するこれらの部材は接離可能の条件だけで、連結精度は特に必要でなく、簡易な装置で体感振動装置２を構成することが出来る。
【００４２】
又、実施例の様に、往復動伝導部16、17の連結する両端内部に設けた位置設定材18、19を滑動性を有する材質と成すことにより、駆動車14による伝導材15の移動を過度なものとさせることが無く、破損を防止することが出来、又位置設定材18、19を緩衝性を有する材質と成すことにより、伝導材15（往復動伝導部16、17）の両端内部が駆動車14に衝突することを防止することが出来る。
【００４３】
又、常時回転する駆動車14に、接離自在に一対の往復動伝導部16、17を夫々設け、往復動伝導部16、17の一端を振動伝達板５に固定し、連動材24に設けた一対の従動車127 、128 を、駆動車14の外周が往復動伝動部16、17に近づく方向で、駆動車14と往復動伝動部16、17の間に接離自在に配置したので、第１番目の実施例のものにおける伝導材15を加圧車27、28で移動させるものに比して、駆動車14へ従動車127 、128 が接触した後、従動車127 、128 が往復動伝導部16、17へ接触するため、往復動伝導部16、17への従動車127 、128 の接触力が強大となり、振動伝達板５及びスクリーン１の振動を確実化することが出来る。
【００４４】
又、常時同方向回転する一対の駆動車31、31a に、その表裏面が夫々接離自在な往復動連動材32を設け、該往復動連動材32の一端を振動伝達板５に固定し、連動材24に往復動連動材32の表裏面へ接離自在な一対の加圧車27、28を夫々設けたので、スクリーン１に取付けた振動伝達板５への伝達系は往復動連動材32だけであるために、慣性質量が低減し、追従性が向上して再生周波数の範囲を拡大することが出来る。
【００４５】
又、常時同方向回転する一対の駆動車31、31a に、その表裏面が夫々接離自在な往復動連動材32を設け、該往復動連動材32の一端を振動伝達板５に固定し、連動材24に設けた一対の従動車127 、128 を、駆動車31、31a の外周が往復動連動材32に近づく方向で、駆動車31、31a と往復動連動材32の間に接離自在に配置したので、従動車127 、128 の移動により２個の駆動車31、31a は従動車127 、128 を介して往復動連動材32の表裏両面に駆動力を伝達し、往復動連動材32に対する接触力の強大化と２個の駆動により、振動伝達板５及びスクリーン１の振動を確実化、強烈化することが出来る。
【００４６】
又、発振回路への入力信号回路Ｓに音声信号の周波数を低減して低周波信号を創出する周波数変換回路Ｓ１を設けたので、音源の音声信号に低周波信号がなくても、周波数変換回路Ｓ１で創出する低周波信号で体感振動装置１を作動させることが出来、簡易型の映像・音声ソフトの様な場合でも、音響装置における音声再生に近似させて低周波音場を構築することが出来る。
【００４７】
又、音声信号の周波数の低減率を選択自在と成したので、視聴者の好みに応じて周波数の低減度合を選択でき、低周波音場の構築状況の幅を大きくすることが出来る等その実用的効果甚だ大なるものである。
【図面の簡単な説明】
【図１】本発明に係る体感振動装置付スクリーンの斜視図である。
【図２】図１の要部平面図及び作動説明図である。
【図３】第２番目の実施例のスクリーンの要部斜視図である。
【図４】図３の要部平面図及び作動説明図である。
【図５】第３番目の実施例の要部平面図及び作動説明図である。
【図６】第４番目の実施例の要部平面図及び作動説明図である。
【符号の説明】
１スクリーン
３スピーカー
４検出手段
５振動伝達板
７連動手段
12 モーター
14 駆動車
15 伝導材
16 往動伝導部
17 復動伝導部
24 連動材
25 振動板
27 加圧車
28 加圧車
30、30a モーター
31、31a 駆動車
32 往復動連動材
127 従動車
128 従動車
Ｓ入力信号回路
Ｓ１周波数変換回路[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a screen with a sensation device that improves the sense of reality when playing an extremely low frequency sound in a sound that is played in accordance with an image.
[0002]
[Prior art]
Conventionally, a movie is composed of sound including video and sound effects, and the video is projected on the screen, and the sound corresponding to the video is played from the sound reproducing device, the screen is enlarged, and the sound is also improved. ing.
The sound reproduction device is basically composed of an audio signal reading / reproducing circuit, an amplifier and a speaker, and an electronic signal generated by the audio signal reading / reproducing circuit is converted into high frequency, middle frequency and low frequency bands by the amplifier. The electronic signal is separated and amplified for each band, and the electronic signal of each frequency is sent to the tweeter dedicated to treble, the squawker dedicated to medium sound, and the woofer speaker dedicated to bass, and the speaker diaphragm (cone paper) By vibrating, the air on the front surface of the diaphragm was further vibrated to cause a change in the density of the air density and generate sound waves.
[0003]
In a sound reproducing apparatus using such a method, it is not easy to reproduce the low sound originally or as a large sound, or the low-frequency slow air density change is not sufficiently transmitted. Even if it was audible, it was not received by the whole body, and had a shortcoming that was not realistic.
Therefore, compared with the increase in size and power of the video, there was no voice or presence.
[0004]
[Problems to be solved by the invention]
It is an object of the present invention to provide a screen with a sensation device that increases the body sensitivity generated by vibration of the air around the audiovisual person and improves the sense of presence and viewing sensation by matching video and audio. Is.
[0005]
[Means for Solving the Problems]
The present invention is based on the above-described prior art, and in particular, in view of the problem that the presence of sound is poor at the time of sound reproduction in the low frequency band, and sound cannot be attached as compared with video, in addition to the projection device and the sound reproduction device, bodily sensation vibration is applied to the screen. Sensory vibrations by detecting means for detecting the vibration of the oscillation circuit by attaching the vibration transmission plate of the device, vibration means for vigorously vibrating the vibration transmission plate with large amplitude, and interlocking means for operating the vibration means by the signal of the detection means By constructing the device, the vibration transmission plate and screen of the sensation vibration device are vibrated vigorously with a large amplitude in conjunction with the vibration of the oscillation circuit, and a large change in air density is transmitted to the viewer, The above problem has been solved by improving the sense of reality by experiencing air vibration and matching video and audio.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
As shown in FIGS. 1 and 3, a sensible vibration device 2 that operates in conjunction with a sound reproduction device (not shown) is provided on the back side of a screen 1 that is freely oscillated back and forth. A speaker 3 serving as an oscillation circuit interlocked with the apparatus; a detecting means 4 for detecting vibration of the speaker 3; a vibrating means 6 for vibrating a vibration transmitting plate 5 attached to the back of the screen 1; a detecting means 4 and a vibrating means. And interlocking means 7 for interlocking 6.
[0007]
In detail, as shown in FIG. 1, the holding portions 8 and 8a attached at appropriate positions of the screen 1 are attached to the lower ends of the support links 9 and 9a attached to the ceiling (not shown) or the like. The vibration transmitting plate 5 is attached to the center of the back surface of the screen 1.
Although the sensation vibration device 2 including the speaker 3 and the like is illustrated as having one unit attached to the screen 1, two or more sensation vibration devices 2 may be installed on one screen 1, or The vibration transmission plate 5 in the sensible vibration device 2 may be omitted, and the screen 1 and conductive materials 15 and 32 described later may be directly connected.
[0008]
Reference numeral 12 denotes a motor installed on a floor surface (not shown) on the back side of the screen 1, and the motor 12 is always rotated in one direction, and a pulley serving as a driving vehicle 14 is provided at the upper end of the motor 12. The diameter D of the drive wheel 14 is appropriately sized.
[0009]
As shown in FIGS. 1 and 2, 15 is a conductive material installed horizontally on the back side of the vibration transmitting plate 5, and the conductive material 15 has one or a plurality of belts in a substantially rectangular shape or a substantially oval shape. One of the longitudinal lengths of the substantially parallel state is formed as the forward conducting portion 16 and the other is the backward conducting portion 17. The distance L between the two reciprocating conducting portions 16 and 17 is the diameter of the drive wheel 14. The two reciprocating conductive portions 16 and 17 are arranged outside the driving wheel 14 so as to be able to contact and separate from the driving wheel 14 while having a width larger than D.
[0010]
Position setting materials 18 and 19 are provided at both front and rear ends of the conductive material 15 so as to provide a distance L between the pair of reciprocating conductive portions 16 and 17, Alternatively, the position setting members 18 and 19 are formed of a material having slipperiness (a property without resistance).
[0011]
Further, the connecting material 20 is fixed to the outside of the front end of the conductive material 15, the vibration transmission plate 5 is fixed to the tip of the connecting material 20, and the holding portion 21 is provided outside the rear end of the conductive material 15, and the holding The portion 21 is held by a support link 23 attached to an appropriate member such as a ceiling so that the conductive material 15 does not come into contact with the driving vehicle 14 constantly driven by the motor 12 in the non-operating state, and the interlocking means 7 is operated. Sometimes it comes in contact.
[0012]
Reference numeral 24 denotes an interlocking member in the interlocking means 7 for bringing the speaker 3 and the reciprocating conduction parts 16 and 17 into contact. The base end of the interlocking member 24 is fixed to the diaphragm 25 of the speaker 3 and the reciprocating conduction parts 16 and 17. On the opposite side, the other end of the interlocking member 24 is inserted into the slide bearing 26 so that the interlocking member 24 is slidable according to the vibration of the diaphragm 25 of the speaker 3.
[0013]
Further, on the outside of the reciprocating conductive portions 16 and 17, pressurizing wheels 27 and 28 that are freely contactable with the reciprocating conductive portions 16 and 17 are connected to the interlocking material installed above the reciprocating conductive portions 16 and 17. It is rotatably mounted at the right lower position of 24.
[0014]
In the second embodiment shown in FIGS. 3 and 4, two motors 30 and 30a are installed in the same rotation direction, and a pair having a predetermined interval L1 at the upper ends of the motors 30 and 30a. Driving vehicles 31, 31a are installed.
[0015]
A rod-like reciprocating interlocking member 32 is disposed between the drive wheels 31, 31a, the front end of the reciprocating interlocking member 32 is attached to the vibration transmission plate 5, and the rear end is held via the support link 23. The front and back surfaces of the reciprocating interlocking member 32 are configured to be freely contacted and separated from either one of the pair of driving wheels 31 and 31a.
[0016]
In addition, a pair of pressurizing wheels 27 and 28 that are freely contactable with each other are attached to the interlocking member 24 connected to the speaker 3 on one of the front and back surfaces of the reciprocating interlocking member 32.
[0017]
In both the first and second embodiments, the return pressure wheel 28 is not necessarily required, and the resilience of the conductive material 15 or the reciprocating interlocking material 32 may be used.
[0018]
Next, the operation of the screen with a sensation device according to the present invention (first and second embodiments) will be described.
In the first embodiment shown in FIGS. 1 and 2, the driving wheel 14 of the motor 12 is always rotated counterclockwise (counterclockwise), and the speaker 3 has a low-frequency wave with a convex waveform. When a sound current (electronic signal) flows, the diaphragm 25 of the speaker 3 moves in the direction A in the figure, and one pressurizing wheel 27 connected to the diaphragm 25 by the interlocking member 24 is the forward conducting portion of the conductive material 15. Press 16.
[0019]
Then, a part of the pressed forward conducting portion 16 is bent or deformed, or the conductive material 15 is entirely inclined according to the support state of the support link 23, and the forward conducting portion 16 Is pressed against one surface of the drive wheel 14.
[0020]
At this time, since the driving wheel 14 is rotating counterclockwise, the forward conducting portion 16 is moved strongly in the left direction of A1 in the figure, and the vibration transmission connected to the tip of the forward conducting portion 16 is performed. The plate 5 is pushed in the left direction of A2 in the figure. Therefore, the driving force of the motor 12 is converted to the pushing direction on the front side of the screen 1 through the vibration transmission plate 5, and the change in the air density of intense positive pressure is changed. generate.
[0021]
When a low-frequency sound current having a concave waveform flows at the next moment, the diaphragm 25 of the speaker 3 moves in the direction B in the figure, and the return conducting portion 17 is connected via the interlocking member 24 and the other pressurizing wheel 28. Is pressed and bent or deformed, the return conducting portion 17 is contacted and pressed against the driving wheel 14, and the action of the one pressure wheel 27 disappears.
[0022]
At this time, since the drive wheel 14 rotates counterclockwise, the backward conducting portion 17 is moved to the right of B1 in the figure, and the vibration transmission plate 5 and the screen 1 are instantaneously moved to the right of B2 in the figure. It is pulled back to generate a change in tight density of intense negative pressure.
[0023]
By repeating the sound currents having the convex and concave waveforms as described above, the vibration transmitting plate 5 and the screen 1 together with the vibration plate 25 of the speaker 3 generate intense positive / negative pressure, that is, air vibration.
[0024]
The speaker 3 is a low-frequency woofer and reproduces low sound. However, since there are inertial masses such as the screen 1, the speaker 3, the detecting means 4, the vibration transmitting plate 5, the interlocking means 7, etc., the sensible vibration device 2 is used. The frequency that can be reproduced in addition to sound is mainly lower than the speaker 3 or part of the lower frequency.
[0025]
In the second embodiment, a pair of pressurizing wheels 27 by the operation of the speaker 3 is applied to the front and back surfaces of the reciprocating interlocking member 32 existing at the neutral position of the two motors 30 and 30a. When one of 28 is contact-pressed, the reciprocating interlocking member 32 contacts either one of the two motors 30, 30a driving wheels 31, 31a. As a result, the vibration transmission plate 5 and the screen 1 are pressed. Or are pulled back, and these are continuously repeated to generate intense air vibrations.
[0026]
The oscillation circuit for driving the interlocking member 24 is formed with the diaphragm 25 of the speaker 3. However, the present invention is not limited to this method, and a solenoid that is directly driven by an electronic signal transmitted to the speaker 3 is formed with the oscillation circuit. However, the interlocking member 24 may be directly driven by an electronic signal.
[0027]
Next, two types of embodiments having an efficient vibration configuration instead of the first and second embodiments will be described.
The third embodiment shown in FIG. 5 is an improved example of the embodiment shown in FIGS.
1 and 2, the interlocking member 24 moves in the orthogonal direction with respect to the conductive material 15. However, in the case shown in FIG. 5, the oscillation circuit (speaker 3) is connected to the conductive material 15. The linked interlocking member 24 moves in the inclination direction, and a pair of driven wheels 127 and 128 of the interlocking member 24 are linked between the driving wheel 14 and the conductive member 15 (the pressurizing wheel 27 of the first and second embodiments). , 28), and a slide bearing 26 that supports the other end of the interlocking member 24 is held by a support link 23.
[0028]
The related arrangement of the drive wheel 14, the driven wheels 127 and 128, the conductive material 15, and the reciprocating conductive portions 16 and 17 is such that the interlocking member 24 is located on the center position of the drive wheel 14, and the outer periphery of the drive wheel 14 is One driven vehicle 127 is disposed in a non-contact state between the outer periphery of the drive wheel 14 and the inner surface of the forward drive unit 16 at a position that rotates and approaches the forward drive unit 16, so that the drive vehicle 14 can move freely. The other driven vehicle 128 is arranged at a position opposite to the vehicle.
[0029]
With this configuration, when the diaphragm 25 of the speaker 3 moves in the direction A in the figure, one of the driven vehicles 127 supported by the interlocking member 24 comes into contact with the driving vehicle 14, and the driven vehicle 127 rotates and rotates in the drawing. It moves slightly in the direction of the A 'direction along with the interlocking member 24 in the direction of the forward conducting portion 16, the outer periphery of the driven vehicle 127 contacts the inner surface of the forward conducting portion 16, and the forward conducting portion 16 is in the right direction of A1 in the figure. It is moved intensely, and the vibration transmission plate 5 and the screen 1 are pulled back in the right direction of A2 in the figure.
[0030]
At the next moment, as shown in the directions B, B ', B1, and B2, in the figure, the driven vehicle 128 contacts the drive wheel 14 and the backward conducting portion 17 to push out the vibration transmission plate 5 and the screen 1. When these are repeated continuously, intense air vibrations are generated.
[0031]
The fourth embodiment shown in FIG. 6 is an improved example of the embodiment shown in FIGS. 3 and 4 show that the interlocking member 24 moves in the orthogonal direction with respect to the reciprocating interlocking member 32, but in the example shown in FIG. The interlocking member 24 linked to the speaker 3) moves in the inclination direction, and a pair of driven vehicles 127, 128 of the interlocking member 24 is arranged between the reciprocating interlocking member 32 and the driving vehicles 31, 31a. Yes.
[0032]
The related arrangement of the driving vehicle 14, the driven vehicles 127 and 128, the driving vehicles 31, 31a, and the reciprocating interlocking material 32 is linked to the intersection of the center of the reciprocating interlocking material 32 and the pair of driving vehicles 31, 31a. In the position where the material 24 is located and the outer periphery of the driving wheel 31a rotates and approaches the reciprocating interlocking member 32, the outer periphery of the driving wheel 31 and the side surface of the reciprocating interlocking member 32 can be contacted and separated in a non-contact state, respectively. One driven vehicle 127 is arranged, and the other driven vehicle 128 is arranged at the opposite position.
[0033]
With this configuration, when the diaphragm 25 of the speaker 3 moves in the direction A in the figure, one driven vehicle 127 supported by the interlocking member 24 starts to contact one drive vehicle 31a and the reciprocating interlocking member 32 direction. Get closer to.
By further movement of the driven vehicle 127, the driven vehicle 127 contacts the reciprocating interlocking member 32 while rotating, and the reciprocating interlocking member 32 is moved strongly to the left of A1 in the figure, and the vibration transmitting plate 5 and the screen are moved. 1 is pushed to the left of A2 in the figure.
[0034]
In the above state, when the driven vehicle 127 approaches, contacts, and presses the reciprocating interlocking member 32, the reciprocating interlocking member 32 slightly moves in the direction A ′ in the figure and contacts the other driving vehicle 31. The push-out action of the reciprocating interlocking member 32 is also performed in the other driving vehicle 31, and the reciprocating interlocking member 32 is intensely operated by the two driving vehicles 31 and 31a.
At the next moment, as shown in the directions B, B ', B1, and B2, in the figure, the driven vehicle 128 contacts the driving vehicles 31, 31a and the reciprocating interlocking member 32, and the vibration transmission plate 5 and the screen 1 are moved. By pulling back and repeating these, intense air vibrations are generated.
[0035]
In addition, audio signals in simple video software, TV broadcasts, LD (laser discs), DMD (digital multi-discs), video games, etc., are originally cut at very low frequencies of several hertz to 100 hertz. These sound sources are often played, input, and output using only other frequency signals.
Accordingly, listening to the bass sound becomes more difficult, and setting of the bodily sensation, the realistic sensation, and the low frequency sound field is almost impossible.
[0036]
Therefore, an alternative configuration of an audio signal that is added to the basic vibration configuration described above and matched with the video will be described.
As shown in FIG. 1, a frequency conversion circuit S1 and an amplification circuit S2 are interveningly connected to an input signal circuit S to a speaker 3 that is an oscillation circuit.
The frequency conversion circuit S1 is a pulse converter that reduces the frequency. When an audio signal in an audible frequency band transmitted from an audio signal reading / reproducing circuit or an amplifier is input to the frequency conversion circuit S1, the frequency of the audio signal is reduced to several minutes. The signal is reduced to 1 to several hundreds of 1 to generate a low frequency signal of several hertz to several hundred hertz, and the amplitude is increased by an amplifier circuit S2 (amplifier) as necessary, and transmitted to the speaker 3.
[0037]
With this configuration, the sensible vibration device 1 operates at the approximate position simultaneously with the audible low frequency reproduction by the sound reproducing device.
Moreover, although the frequency reduction rate in the frequency conversion circuit S1 has been described to be, for example, a fraction of 1 to several hundreds, the selection switch S3 is provided in the frequency conversion circuit S1, and the reduction rate can be set freely. Preferably.
[0038]
【The invention's effect】
In short, the present invention attaches the screen 1 so that it can freely vibrate back and forth, attaches a vibration transmission plate 5 to the back surface of the screen 1, and provides detection means 4 for detecting the vibration of the oscillation circuit installed on the back side of the screen 1. A conductive material 15 (reciprocating conductive portion 16, 17) and a reciprocating interlocking material 32 are installed in the drive wheels 14, 31, 31a of the motors 12, 30, 30a provided in the interior of the motor 12, 30, 31a. Since one end of the reciprocating interlocking member 32 is fixed to the vibration transmitting plate 5 and the detecting means 4 detects, the interlocking means 7 for bringing the conductive material 15 and the reciprocating interlocking member 32 into contact with the driving wheels 14, 31, 31a is provided. When the video and audio are played, the vibration transmission plate 5 and the screen 1 can be vibrated vigorously by the driving force of the motors 12, 30 and 30a according to the vibration of the oscillation circuit linked to the sound generator. Along with the sound of the device, a large air vibration on screen It is possible to cause the viewer to experience low frequencies by generating motion.
Further, since the drive of the vibration transmission plate 5 is a drive switching operation of the motors 12, 30, 30a, the vibrations of the vibration transmission plate 5 and the screen 1 can be made to have a strong large amplitude. The vibration of the density change can be perceived by the viewer. Therefore, the air vibration reaches the viewer from the image plane in accordance with the movement of the image on the screen 1, so that a very realistic and dynamic sound field expression can be obtained. In the case of 3D video, it is possible to further increase the sense of reality and match the video, audio, and sound field to improve the sense of reality that was difficult with conventional audio alone.
Further, when the sensible vibration device 2 is attached to the screen 1, the screen 1 having a large area can be efficiently vibrated by interposing the vibration transmitting plate 5.
[0039]
Further, since the detecting means 4 is configured by attaching the interlocking member 24 to the diaphragm 25 of the speaker 3, the oscillation circuit source may be simply set by adding the speaker 3, and the sensible vibration device 2 can be set easily and inexpensively. I can do it.
[0040]
Further, since the detecting means 4 drives the interlocking member 24 with a solenoid driven by an electronic signal transmitted to the speaker 3, the driving portion of the detecting means 4 can be reduced in size and weight. It is possible to generate a large signal more reliably than detecting the vibration of the diaphragm 25.
[0041]
In addition, a drive wheel 14 that rotates constantly is provided with a pair of reciprocating conduction portions 16 and 17 that can be freely contacted and separated. One end of the reciprocating conduction portions 16 and 17 is fixed to the vibration transmission plate 5 and reciprocates with the interlocking member 24. Since a pair of pressurizing wheels 27 and 28 that can be brought into and out of contact with each other are provided on the dynamic conduction portions 16 and 17, respectively, these members constituting the sensible vibration device 2 are only in a condition that they can be brought into and out of contact with each other, and the connection accuracy is particularly required In addition, the sensation vibration device 2 can be configured with a simple device.
[0042]
Further, as in the embodiment, the position setting members 18 and 19 provided inside both ends to which the reciprocating conduction portions 16 and 17 are connected are made of a material having a sliding property, so that the driving member 14 can move the conductive member 15. It can be prevented from being excessive and can be prevented from being damaged, and the position setting members 18 and 19 are made of a material having a cushioning property so that the inside of both ends of the conductive material 15 (reciprocating conductive portions 16 and 17) can be obtained. Can be prevented from colliding with the driving vehicle 14.
[0043]
In addition, a pair of reciprocating conduction portions 16 and 17 are provided on the constantly rotating drive wheel 14 so as to be able to contact and separate, respectively, and one end of the reciprocating conduction portions 16 and 17 is fixed to the vibration transmission plate 5 and provided on the interlocking member 24. Since the pair of driven vehicles 127 and 128 are arranged so as to be freely contactable between the driving vehicle 14 and the reciprocating transmission portions 16 and 17 in a direction in which the outer periphery of the driving vehicle 14 approaches the reciprocating transmission portions 16 and 17, Compared to the case where the conductive material 15 in the first embodiment is moved by the pressurizing wheels 27 and 28, the driven vehicles 127 and 128 are reciprocated after the driven vehicles 127 and 128 come into contact with the driving vehicle 14. Since the conductive parts 16 and 17 are brought into contact with each other, the contact force of the followers 127 and 128 to the reciprocating conductive parts 16 and 17 becomes strong, and the vibration of the vibration transmission plate 5 and the screen 1 can be ensured.
[0044]
Also, a reciprocating interlocking member 32 whose front and back surfaces are freely contactable and separable is provided on a pair of driving wheels 31 and 31a that always rotate in the same direction, and one end of the reciprocating interlocking member 32 is fixed to the vibration transmission plate 5; Since the pair of pressurizing wheels 27 and 28 that can be brought into and out of contact with the front and rear surfaces of the reciprocating interlocking member 32 are provided on the interlocking member 24, the transmission system to the vibration transmitting plate 5 attached to the screen 1 is the reciprocating interlocking member 32. Therefore, the inertial mass is reduced, the followability is improved, and the reproduction frequency range can be expanded.
[0045]
Further, a reciprocating interlocking member 32 whose front and back surfaces are respectively contactable and separable is provided on a pair of driving wheels 31 and 31a that always rotate in the same direction, and one end of the reciprocating interlocking member 32 is fixed to the vibration transmission plate 5; A pair of driven vehicles 127 and 128 provided on the interlocking member 24 can be freely contacted and separated between the driving wheels 31 and 31a and the reciprocating interlocking member 32 in a direction in which the outer periphery of the driving vehicles 31 and 31a approaches the reciprocating interlocking member 32. The two driven vehicles 31, 31a transmit the driving force to both the front and back surfaces of the reciprocating interlocking material 32 via the follower vehicles 127, 128 by the movement of the driven vehicles 127, 128. By virtue of the increased contact force and the two drives, vibrations of the vibration transmission plate 5 and the screen 1 can be ensured and intensified.
[0046]
In addition, since the frequency conversion circuit S1 for generating the low frequency signal by reducing the frequency of the audio signal is provided in the input signal circuit S to the oscillation circuit, the frequency conversion circuit can be used even if the audio signal of the sound source does not have a low frequency signal. The sensible vibration device 1 can be operated by the low frequency signal created in S1, and even in the case of simple video / audio software, a low frequency sound field can be constructed by approximating sound reproduction in an acoustic device. I can do it.
[0047]
Also, since the frequency reduction rate of the audio signal can be freely selected, the frequency reduction degree can be selected according to the viewer's preference, and the range of construction of the low frequency sound field can be increased. The effect is great.
[Brief description of the drawings]
FIG. 1 is a perspective view of a screen with a sensation vibration device according to the present invention.
2 is a plan view of a main part and an operation explanatory diagram of FIG. 1; FIG.
FIG. 3 is a perspective view of a main part of a screen according to a second embodiment.
4 is a plan view of a main part and an operation explanatory diagram of FIG. 3; FIG.
FIGS. 5A and 5B are a main part plan view and an operation explanatory diagram of a third embodiment. FIGS.
FIG. 6 is a plan view of main parts and an operation explanatory diagram of a fourth embodiment.
[Explanation of symbols]
1 Screen 3 Speaker 4 Detection means 5 Vibration transmission plate 7 Interlocking means
12 motor
14 Driving car
15 Conductive material
16 Forward conduction part
17 Reverse transfer section
24 Linkage material
25 Diaphragm
27 Pressurized car
28 Pressurized car
30, 30a motor
31, 31a drive car
32 Reciprocating interlocking material
127 Follower
128 Car S Input signal circuit S1 Frequency conversion circuit

Claims

With attached screens freely longitudinal vibrations to attach the back side to the vibration transmission plate of the screen, a detection means for detecting vibration of an oscillator circuit installed in the rear side of the screen is provided, and motor-drive vehicle is installed on the rear side of the screen With a sensation device characterized in that a conductive material is installed in a freely movable manner, and one end of the conductive material is fixed to the vibration transmission plate, and interlocking means for contacting the conductive material with the driving vehicle by detection of the detection means is provided. screen.

2. The screen with a sensation apparatus according to claim 1, wherein the vibration transmitting plate is omitted and a conductive material is directly connected to the screen.

The screen with a sensation apparatus according to claim 1 or 2, wherein the detection means is configured by attaching an interlocking material to a diaphragm of a speaker.

3. The screen with a sensation apparatus according to claim 1, wherein the detecting means drives the interlocking member with a solenoid driven by an electronic signal transmitted to the speaker.

A pair of reciprocating conduction parts are provided on a constantly rotating drive wheel so that they can be contacted and separated, one end of the reciprocating conduction part is fixed to a vibration transmitting plate, and a pair of reciprocating conduction parts can be connected to and separated from the interlocking member. 5. A screen with a sensation apparatus according to claim 3 or 4, wherein a pressure wheel is provided.

A pair of reciprocating conduction parts are provided on a constantly rotating drive wheel so that they can be contacted and separated, one end of the reciprocation conduction part is fixed to a large diaphragm, and a pair of follower cars provided on the interlocking member is connected to the outer periphery of the drive car. The screen with a sensation device according to claim 3 or 4, wherein the screen is disposed so as to be freely contacted and separated between the drive vehicle and the reciprocating transmission portion in a direction approaching the reciprocating transmission portion.

A pair of driving vehicles that always rotate in the same direction is provided with a reciprocating interlocking material whose front and back surfaces can be freely contacted and separated, and one end of the reciprocating interlocking member is fixed to a vibration transmission plate, The screen with a sensation apparatus according to claim 3 or 4, wherein a pair of pressurizing wheels that can be brought into contact with and separated from the front and back surfaces are provided.

A pair of driven vehicles that always rotate in the same direction are provided with a reciprocating interlocking material whose front and back surfaces can be contacted and separated, and one end of the reciprocating interlocking member is fixed to a large diaphragm, and a pair of followers provided on the interlocking material. The screen with a sensation apparatus according to claim 3 or 4, wherein the vehicle is disposed so as to be freely contacted and separated between the driving vehicle and the reciprocating interlocking material in a direction in which the outer periphery of the driving vehicle approaches the reciprocating interlocking material.

The screen with a sensation apparatus according to claim 1 or 2, wherein a frequency conversion circuit for reducing a frequency of an audio signal to create a low frequency signal is provided in an input signal circuit to an oscillation circuit that operates with a low frequency signal.

The screen with a sensation apparatus according to claim 9, wherein a reduction rate of the frequency of the audio signal is selectable.