JP4350870B2

JP4350870B2 - Inner cylinder rotation control mechanism of electronic cylinder lock

Info

Publication number: JP4350870B2
Application number: JP2000124862A
Authority: JP
Inventors: 佐代藤原; 健輔本田; 敏範杉本; 和久畠山
Original assignee: Secom Co Ltd
Current assignee: Secom Co Ltd
Priority date: 2000-04-25
Filing date: 2000-04-25
Publication date: 2009-10-21
Anticipated expiration: 2020-04-25
Also published as: JP2001303816A

Description

【０００１】
【発明の属する技術分野】
この発明は、電子シリンダ錠の内筒回転制御機構（以下単に回転制御機構という）に関する。
【０００２】
【従来の技術】
近年、電子シリンダ錠なる新規な錠前が提案され、実用されつつある。この電子シリンダ錠は所謂電気錠とは異なる。
【０００３】
すなわち、電気錠はテンキー装置等により入力された暗証番号を予め登録されている暗証番号と電気的に比較し、合致する場合解錠信号を発生させ、この解錠信号を受信した比較的大電力を要する電磁アクチュエータがデッドボルト或いはストライクを直接機械的に制御する。
【０００４】
一方、電子シリンダ錠は、合鍵自体に論理回路やメモリーを有する半導体集積回路（以下単にＩＣという）及び電池を組込み、この合鍵をシリンダ錠に挿入することによりＩＣに蓄積された暗証符号を錠前側の制御回路に無線で送給し、予め登録されている暗証符号と合致したとき解錠信号を発生させるまでは電気錠の作動と同様である。
【０００５】
しかしながら、電子シリンダ錠が電気錠と異なるのは、電子シリンダ錠が解錠信号発生時に通常のシリンダ錠の内筒に相当するものをテールピースに接続し、合鍵を手で回すことにより内筒を回動してデッドボルト或いはストライクを制御する点にある。
【０００６】
そのため、電子シリンダ錠は、通常のシリンダ錠では一体に結合されている内筒とテールピースとの間にクラッチ機構が介在している。合鍵がシリンダ錠に挿入されていないときには、このクラッチ機構が作動せず内筒が外筒内を空回りする。一方、合鍵がシリンダ錠に挿入され、解錠信号を発生すると、クラッチ機構が作動して内筒とテールピースとが連結されるので、クラッチ機構及びテールピースを介してデッドボルト等の錠止部材を制御することができる。
【０００７】
なお、ここで合鍵とは、所謂予備の鍵ではなく、電子シリンダ錠を解錠すべく構成された装置をいうものとする。
【０００８】
【発明が解決しようとする課題】
本出願人は、先に、特願平１１−０９９９１０号を以て、電子シリンダ錠用の新規なクラッチ機構を提案した。
【０００９】
このクラッチ機構は、本発明の要旨ではないので簡単に説明すると、外筒の内端部にクラッチプレートを、このクラッチプレートの外側に、内端部外周に小径段部を形成した内筒を、夫々外筒の中心軸線の回りを回動自在に嵌装し、更に、内筒をその中心軸線に垂直な隔壁で区画して外側に合鍵を受入れる外方空間を、内側にクラッチ機構を収納する内方空間を夫々形成したものにおいて、クラッチプレートの内面にテールピースを突設すると共に外面周辺部にクラッチ孔を開口させ、一方、内筒の内方空間に、内端部をクラッチ孔に係入可能に臨ませ、内筒の中心軸線方向に延在する棒状のスライドラッチを長さ方向に移動可能に案内すると共に、これをクラッチプレートに近接する方向に付勢し、このスライドラッチに内筒の半径方向でかつ外方に突在する第１制御ピンと、反対方向に突在する第２制御ピンとを夫々突設し、第１制御ピンを、内筒の内端部にその母線方向に沿って開口したガイド溝に摺動可能に挿通させて、その先端を内筒の上記小径段部と外筒内周面との間の空間に臨ませ、他方、外筒内周面の内筒小径段部に臨む部分に固定され、薄肉円筒の一部をなすと共に、円周方向において傾斜するカム面を有するカムを設け、内筒を一方向に回転させたときこのカムと第１制御ピンの先端との間に生じる楔作用により第１制御ピンをその付勢力に抗して外方に押動できるようにすると共に、内筒を他方向に回転させたときその付勢力により第１制御ピンをクラッチプレートのクラッチ孔に係入させるようにし、更に、内筒の内方空間において、上記第２制御ピンに関しスライドラッチとは反対側に、第２制御ピンと平行な回転出力軸を有し、この回転出力軸をスライドラッチ側に向けた、ラッチング作動をする電磁アクチュエータを配設し、この電磁アクチュエータの回転出力軸に、施錠時第２制御ピンを係止する鈎部と、第２制御ピンが係入できる凹部と、傾斜端縁とを連設したフック体を装着し、施錠時第２制御ピンを凹部に係入させた状態で、第２制御ピンに関して鈎部が回転出力軸と反対側になるような角度位置にフック体を置き、解錠時鈎部が第２制御ピンの移動軌跡から外れるような角度位置にフック体を置き、施錠するとき、内筒を一方向に回して第２制御ピンを外方に移動させ、第２制御ピンとフック体の傾斜端縁との間に生じる楔作用により、フック体を施錠角度位置に戻すようにしたことを特徴とするものである。
【００１０】
このクラッチ機構は、その構造上の特性として、合鍵を電子シリンダ錠の内筒に挿入してから施解錠の為所定の方向に一定の角度、例えば約１５〜６度回動させたときにフック体が電磁アクチュエータにより回転可能となるので、このタイミングにおいて合鍵に内蔵されたＩＣ回路に通電するトリガー機構が必要である。
【００１１】
また、上記クラッチ機構を制御する電磁アクチュエータに給電するため、合鍵に内蔵された電池の電力を交番電流に変換し、これも合鍵に内蔵された第１コイルを介して、電子シリンダ錠の内筒に内蔵された第２コイルに電磁誘導を利用して無線で電力を供給する。
【００１２】
このとき、電池の容量の都合上、合鍵からの無線による給電を数回に分けて行わなければならず、例えば０．２〜３秒は内筒を固定する必要がある。
【００１３】
換言すれば、トリガー機構が作動して直に電磁アクチュエータへの給電が始るとして、トリガー機構作動後少なくとも０．３〜４秒内筒を固定しなければ電子シリンダ錠内のクラッチ機構が作動しない。
【００１４】
一方、シリンダ錠の内筒に合鍵を差込んだ状態で力一杯に合鍵を回すと、約０．２秒で施解錠操作が終了する、すなわち内筒が回ってしまう。
【００１５】
そこで、この発明は、電子シリンダ錠の施解錠操作の開始するための角度位置を適切に設定でき、しかもその開始角度位置を必要な時間固定して、内筒の電磁アクチュエータへの電力供給を確実に行うことができる回転制御機構を提供することを目的としている。
【００１６】
【課題を解決するための手段】
上記の目的を達成するため、請求項１に記載の発明は、電子シリンダ錠の外筒の外端部に同軸に装着され、外筒に回動可能に嵌合した内筒の外端部を包囲するように配設された環状の永久磁石と、論理回路やメモリーを有する半導体集積回路及び電池を組込んだ合鍵の先端部にその幅方向に沿って延在するように、かつ永久磁石に近接するように埋設され、電池と半導体集積回路を断続するリードスイッチとを有し、上記永久磁石を、内筒の中心軸線を見込む角度が優角である一の区域と、劣角である他の区域とに分割し、これら一の区域と他の区域とを相互に異磁極になるように着磁すると共に、優角及び劣角の２等分線が合鍵挿入角度位置における鍵孔の幅方向に直角になるように、外筒に対する永久磁石の相対角度位置を設定し、以て、合鍵を電子シリンダ錠の内筒に差込んだとき、リードスイッチの両端が一の区域の両端部に跨がるのでリードスイッチが閉成されず、合鍵を所定の角度回動させたときリードスイッチが異磁極間に跨がってリードスイッチが閉成されるようにしたものにおいて、上記リードスイッチが閉成された後、シリンダ錠外筒のクラッチ機構の電磁アクチュエータへの給電時間を確保する目的で、永久磁石の裏面に対向する内筒段部に内筒の中心軸線に平行なクリック体収納孔を形成し、このクリック体収納孔にクリックばね及びクリック体を収納して、クリック体を永久磁石の裏面に弾接させるように付勢する一方、内筒が合鍵挿入角度位置から上記優角と劣角の差のほぼ半分の角度所定の方向に回動したとき、クリック体と整合する永久磁石の裏面の部分に、クリック体が落込むクリック凹部を形成し、クリック体とクリック凹部との弾接を利用して合鍵を一時的に停止させるようにしたことを特徴とする。
【００１７】
また、請求項２に記載の発明は、電子シリンダ錠の外筒の外端部に同軸に装着され、外筒に回動可能に嵌合した内筒の外端部を包囲するように配設された環状の永久磁石と、論理回路やメモリーを有する半導体集積回路及び電池を組込んだ合鍵の先端部にその幅方向に沿って延在するように、かつ永久磁石に近接するように埋設され、電池と半導体集積回路を断続するリードスイッチとを有し、上記永久磁石を、内筒の中心軸線を見込む角度が劣角である一の区域と、同じ角度の劣角である他の区域とに分割し、これら一の区域と他の区域とを相互に異磁極になるように着磁すると共に、これらの区域の両端を内筒の中心軸線を見込む角度が同じ角度の非着磁部位を介して相互に接続し、上記劣角の２等分線が合鍵挿入角度位置における鍵孔の幅方向に直角になるように、外筒に対する永久磁石の相対角度位置を設定し、以て、合鍵を電子シリンダ錠の内筒に差込んだとき、リードスイッチの両端が非着磁部位に跨がるのでリードスイッチが閉成されず、合鍵を所定の角度回動させたときリードスイッチが異磁極間に跨がってリードスイッチが閉成されるようにしたものにおいて、上記リードスイッチが閉成された後、シリンダ錠外筒のクラッチ機構の電磁アクチュエータへの給電時間を確保する目的で、永久磁石の裏面に対向する内筒段部に内筒の中心軸線に平行なクリック体収納孔を形成し、このクリック体収納孔にクリックばね及びクリック体を収納して、クリック体を永久磁石の裏面に弾接させるように付勢する一方、内筒が合鍵挿入角度位置から上記非着磁部位が内筒の中心軸線を見込む角度のほぼ半分の角度所定の方向に回動したとき、クリック体と整合する永久磁石の裏面の部分に、クリック体が落込むクリック凹部を形成し、クリック体とクリック凹部との弾接を利用して合鍵を一時的に停止させるようにしたことを特徴とする。
【００１８】
【実施例】
以下、この発明の実施例を図面を参照して説明する。
図１乃至図２において符号１は外筒を、符号２は内筒を夫々示し、内筒２は外筒１に対し回動可能に嵌合していることは前記した通りである。
【００１９】
外筒１の内端部には、テールピース３を有するクラッチプレート４が回動可能に嵌合している。
【００２０】
一方、内筒２のほぼ中央に設けられた内筒軸線に垂直な区画板５により、合鍵６が挿入される外方空間７と内方空間８とに区画され、外方空間７には挿入された合鍵６と情報のやり取りをする電磁コイルなどが収納され、内方空間には解錠信号発生時内筒２とクラッチプレート４とを連結するクラッチ機構が収納されているが、これらは本発明の要旨ではないので更に詳細な説明は省略する。
【００２１】
上記内筒２の外端部は図２に示すように小径となっており、この小径部を包囲するように、環状の永久磁石９が外筒１の開口部に同軸に装着されている。
【００２２】
図示の実施例では、図１に示すように、永久磁石９の外周面の２ヵ所に突設された係合突部１０、１０を、外筒１の開口端縁部内周面に形成された係合凹部１１、１１に夫々前方から填め合わせることにより、永久磁石９の回り止めを施している。なお、符号１２は飾りリングである。
【００２３】
上記永久磁石９は、図４に示すように、前方から見たとき内筒の中心軸線Ｏを見込む角度が優角である一の区域９１と、内筒の中心軸線を見込む角度が劣角である他の区域９２とに分割されており、一の区域９１は例えばＮ極に、他の区域９２はＳ極に夫々着磁されている。
【００２４】
また、優角及び劣角の２等分線が合鍵挿入角度位置における鍵孔の幅方向に直角になるように、外筒に対する永久磁石の相対角度位置を設定されている。
【００２５】
すなわち、図２及び図３に示すように、内筒の鍵孔１３が合鍵挿入角度位置において水平であるとき、上記優角及び劣角の２等分線が内筒の中心軸線Ｏを鉛直に通るようにする。
【００２６】
更にまた、上記優角と劣角の差の１／２、すなわち図４における角度αがほぼこの発明によるトリガー機構の作動角度、すなわち、後述するリードスイッチ１６が作動して合鍵内のＩＣ回路が通電される作動角度になるように、永久磁石９の一の区域９１と他の区域９２との割合を定める。
【００２７】
一方、図５において符号１４は合鍵６の主要部をなすコイルモジュールを示し、このコイルモジュール１４の先端には第１コイル１５が埋設されており、このコイルは内筒の外方空間内に設けられた付番しない第２コイルと信号のやり取り、及びクラッチ機構への動力供給を行う。
【００２８】
また、このコイルモジュール１４の基部には、その幅方向に延在するようにして、リードスイッチ１６が埋設され、図５及び図６にハッチングで示すように、シリコンゴムで封止されている。
【００２９】
更にまた、図５において符号１７はホルダーの外形線を示し、このホルダー１７は例えばプラスチック製で、コイルモジュール１４の基部を先端に埋め込むようにして、これと一体に結合されており、例えば電池の収納室などが形成されている。
【００３０】
なお、上記リードスイッチ１６は、合鍵６を内筒の鍵孔１３に挿入したときなるべく前記永久磁石９に近接するように、上記ホルダー１７の先端面に近接するように埋設すると良い。
【００３１】
また、図１及び図２において符号１８は飾りリング１２の前面に開口した円形孔に連設された切欠を示し、この切欠１８は、合鍵挿入時合鍵の先端部側端縁の突起１９(図５参照)の通過を許容するが、合鍵を回し始めた後は合鍵の抜去を抑制するためのものである。
【００３２】
一方、図１に示すように、永久磁石９の裏面に対向する内筒の段部２１に内筒の中心軸線に平行なクリック体収納孔２２が形成されており、このクリック体収納孔２２内に圧縮コイルばねとしてのクリックばね２３及びクリック体２４（図示の実施例ではクリックボール）が収納されている。
【００３３】
そして、上記クリックばね２３の弾力により、クリック体は永久磁石９の裏面に弾接される方向に付勢されている。
【００３４】
他方、永久磁石９を裏面から見たとき、時計盤面に換算して１２時の角度位置、及びその左右の角度α(図４参照)の角度位置で、半径方向の位置をクリック体２４のそれと同一にして、合計３個のクリック凹部２５、２５が開口している。
【００３５】
このクリック凹部２５は、外筒１に固定された永久磁石に対し、内筒の合鍵挿入角度位置、及び施錠方向及び解錠方向における内筒２のクリック位置を定めるものである。
【００３６】
すなわち、内筒が合鍵挿入角度位置、及び時計方向及び反時計方向に角度α回動したとき、クリック体２４がこれらのクリック凹部２５、２５の何れかに落ち込み、内筒をその角度位置に準安定的に係止する。
【００３７】
なお、図示の実施例ではクリック凹部２５は有底の円形孔であるが、これは例えば永久磁石９の半径方向に延在する断面Ｖ字形の溝であっても良い。
【００３８】
上記のように構成された請求項１に記載の発明の一実施例による回転制御機構は、合鍵を鍵孔に挿入するときには、図４に示すように、リードスイッチ１６は水平な角度位置で永久磁石９に近接する。
【００３９】
そのため、図２に示すように合鍵６を一杯にシリンダ錠の内筒に挿入したとき、リードスイッチ１６の脚部は一の区域９１の両端部に跨り、リードスイッチ内の可動接片は同磁極であるから、リードスイッチ１６は閉成しない。
【００４０】
ところが、図７に示すように合鍵を所定の角度α時計方向に回動させると、リードスイッチ１６も同じ角度時計方向に回動し、その結果リードスイッチ１６の脚部が異磁極間に跨る。
【００４１】
すると、リードスイッチ１６内の可動接片が相互に異磁極になるから、これらは相互に吸引されてリードスイッチが閉成され、その結果合鍵内のＩＣ回路が通電されて前記した暗証符号の照合及び内筒内の電磁アクチュエータへの通電が行われる。
【００４２】
同時に、クリック体２４が図１の右側のクリック凹部２５に落ち込み、永久磁石を介して内筒２が準安定的に外筒１に係止される結果、人間の心理として内筒２をその角度位置に必要にして充分な時間、例えば０．４〜０．５秒停止させる。
【００４３】
そのため、合鍵内の前記第１コイルと内筒内の図示しない第２コイルとの間で行われる、複数回にわたる電磁誘導を利用した電磁アクチュエータへの電力供給のための時間を確実に確保することができる。
【００４４】
なお、図７に示すように時計方向への内筒の回動が施錠に対応しているとすると、反時計方向への角度αの回動時リードスイッチ１６が閉成されると共に、図１の左側のクリック凹部２５にクリック体２２が落ち込み、上記したと同様にして解錠のための電磁アクチュエータへの電力供給が確実に行われることは言うまでもない。
【００４５】
図８請求項２に記載の発明の一実施例による回転制御機構におけるトリガー機構のの主要部を示し、この実施例は、永久磁石９を、内筒の中心軸線を見込む角度が劣角である一の区域９１と、同じ角度の劣角である他の区域９２とに分割し、これら一の区域９１と他の区域９２とを相互に異磁極になるように着磁してある。
【００４６】
また、これらの区域９１、９２の両端を内筒の中心軸線を見込む角度が同じ角度の非着磁部位２６、２６を介して相互に接続し、更にまた、上記劣角の２等分線が合鍵挿入角度位置における鍵孔の幅方向に直角になるように、外筒に対する永久磁石の相対角度位置を設定したものである。
【００４７】
上記非着磁部位２６が内筒軸線を見込む角度は、図４の角度αの２倍とする。
【００４８】
なお、非着磁部位２６は磁性材料を着磁しない、という態様で構成することもできるし、また、例えばプラスチック製のブロックを接着剤で結合しても良い。
【００４９】
なお、この請求項２に記載の発明による回転制御機構のクリック装置(図１参照)の構成は、前記した請求項１に記載の発明のそれと同一である。
【００５０】
図８に示す請求項２に記載の発明によるトリガー機構は、合鍵をαだけ時計方向に回動させるとリードスイッチ１６の脚部が異磁極間に跨り、リードスイッチが閉成されると共に、クリック装置か作動して内筒２をそのクリック角度位置にしばらく係止する結果、クラッチ機構の電磁アクチュエータへの給電が確実に行われることは明らかであるから、更に詳細な説明は省略する。
【００５１】
【発明の効果】
以上の説明から明らかなように、この発明は、電子シリンダ錠の外筒開口部に環状の永久磁石を装着し、一方、合鍵にリードスイッチを埋設し、合鍵を鍵孔に挿入後一定の角度回動させたときリードスイッチの脚部が異磁極間に跨るようにすると共に、内筒段部と永久磁石の裏面との間にクリック装置を設け、リードスイッチが作動するときの角度位置を準安定的に係止するようにしたから、合鍵を一定角度回動させたとき合鍵内のＩＣ回路に通電させ、電磁アクチュエータへの給電時間を確実に確保する、という所期の目的を確実に達成する。
【図面の簡単な説明】
【図１】この発明の一実施例による回転制御装置を装備した電子シリンダ錠の構成部材を展開して示す外観斜視図で、永久磁石についてはその裏面も示す。
【図２】この発明の一実施例による回転制御機構を装着した電子シリンダ錠の水平面による断面図で、図面を明瞭にするためクリック装置を省略して示す。
【図３】この発明の一実施例によるトリガー機構を装着した電子シリンダ錠の鉛直面による断面図で、図面を明瞭にするためクリック装置を省略して示す。
【図４】請求項１に記載の発明によるトリガー機構の要部を示す正面図で、合鍵を鍵孔に挿入した状態を示す。
【図５】合鍵の先端をなすコイルモジュールの平面図。
【図６】図４のＶＩ−ＶＩ線による断面図。
【図７】請求項１に記載の発明によるトリガー機構の要部を示す正面図で、合鍵を鍵孔に挿入した後所定の角度合鍵を回した状態を示す。
【図８】請求項２に記載の発明によるトリガー機構の要部を示す正面図で、合鍵を鍵孔に挿入した状態を示す。
【符号の説明】
１外筒
２内筒
６合鍵
９永久磁石
１３鍵孔
１４コイルモジュール
１６リードスイッチ
２１段部
２２クリック体収納孔
２３クリックばね
２４クリック体
２５クリック凹部
２６非着磁部位[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an inner cylinder rotation control mechanism (hereinafter simply referred to as a rotation control mechanism) of an electronic cylinder lock.
[0002]
[Prior art]
In recent years, a new lock called an electronic cylinder lock has been proposed and put into practical use. This electronic cylinder lock is different from a so-called electric lock.
[0003]
That is, the electric lock electrically compares the password entered by the numeric keypad with a password registered in advance, generates an unlock signal if they match, and receives the unlock signal with relatively high power. Electromagnetic actuators that require a direct mechanical control of deadbolts or strikes.
[0004]
On the other hand, an electronic cylinder lock incorporates a semiconductor integrated circuit (hereinafter simply referred to as an IC) having a logic circuit and a memory and a battery in the key itself, and by inserting this key into the cylinder lock, the code stored in the IC is locked. The operation is the same as the operation of the electric lock until the unlocking signal is generated when it is wirelessly sent to the control circuit, and when it matches the pre-registered code.
[0005]
However, the electronic cylinder lock is different from the electric lock in that the electronic cylinder lock is connected to the tail piece that corresponds to the inner cylinder of a normal cylinder lock when an unlocking signal is generated, and the inner cylinder is moved by turning the key by hand. It is in the point which rotates and controls a dead bolt or strike.
[0006]
Therefore, in the electronic cylinder lock, a clutch mechanism is interposed between the inner cylinder and the tail piece that are integrally coupled with each other in the normal cylinder lock. When the key is not inserted into the cylinder lock, the clutch mechanism does not operate and the inner cylinder is idled in the outer cylinder. On the other hand, when the key is inserted into the cylinder lock and an unlock signal is generated, the clutch mechanism is activated and the inner cylinder and the tail piece are connected, so that a locking member such as a dead bolt is connected via the clutch mechanism and the tail piece. Can be controlled.
[0007]
Here, the combined key is not a so-called spare key, but refers to a device configured to unlock the electronic cylinder lock.
[0008]
[Problems to be solved by the invention]
The present applicant has previously proposed a novel clutch mechanism for an electronic cylinder lock with Japanese Patent Application No. 11-099910.
[0009]
Since this clutch mechanism is not the gist of the present invention, a brief description will be given.A clutch plate is formed on the inner end of the outer cylinder, and an inner cylinder having a small diameter step portion formed on the outer periphery of the inner end is formed on the outer side of the clutch plate Each of the outer cylinders is fitted so as to be rotatable around the central axis of the outer cylinder, and the inner cylinder is partitioned by a partition perpendicular to the central axis, and an outer space for receiving a key is accommodated on the outer side, and a clutch mechanism is accommodated on the inner side. In each of the inner spaces formed, a tail piece protrudes from the inner surface of the clutch plate and a clutch hole is opened around the outer surface. On the other hand, the inner end of the inner cylinder is engaged with the clutch hole. The rod-shaped slide latch extending in the direction of the central axis of the inner cylinder is guided so as to be movable in the length direction, and is urged in the direction close to the clutch plate so that the slide latch In the radial direction of the tube A first control pin projecting outward and a second control pin projecting in the opposite direction, and the first control pin is opened at the inner end of the inner cylinder along the generatrix direction It is slidably inserted into the groove so that its tip faces the space between the small-diameter step portion of the inner cylinder and the inner peripheral surface of the outer cylinder, while facing the inner cylinder small-diameter step portion of the inner peripheral surface of the outer cylinder. A cam having a cam surface which is fixed to the portion and forms a part of a thin cylinder and is inclined in the circumferential direction is provided between the cam and the tip of the first control pin when the inner cylinder is rotated in one direction. The first control pin can be pushed outward against the urging force by the wedge action generated at the same time, and when the inner cylinder is rotated in the other direction, the first control pin is moved to the clutch plate by the urging force. In the inner space of the inner cylinder, the second control pin is engaged with the clutch hole. On the opposite side of the slide latch, an electromagnetic actuator that has a rotation output shaft parallel to the second control pin and performs the latching operation with the rotation output shaft directed toward the slide latch is disposed. The output shaft is attached with a hook body in which a hook portion that locks the second control pin at the time of locking, a recess in which the second control pin can be engaged, and an inclined edge, and the second control pin at the time of locking is attached. With the hook engaged with the recess, the hook body is placed at an angular position with respect to the second control pin so that the hook is opposite to the rotation output shaft, and the hook is released from the movement locus of the second control pin when unlocked. When the hook body is placed and locked at such an angular position, the inner cylinder is rotated in one direction to move the second control pin outward, and a wedge action is generated between the second control pin and the inclined end edge of the hook body. To return the hook body to the locking angle position. It is characterized by this.
[0010]
This clutch mechanism has, as a structural characteristic, a hook when a key is inserted into an inner cylinder of an electronic cylinder lock and then rotated in a predetermined direction, for example, about 15 to 6 degrees for locking and unlocking. Since the body can be rotated by the electromagnetic actuator, a trigger mechanism for energizing the IC circuit built in the key at this timing is necessary.
[0011]
Further, in order to supply power to the electromagnetic actuator that controls the clutch mechanism, the power of the battery built in the key is converted into an alternating current, and this is also converted into an inner cylinder of the electronic cylinder lock via the first coil built in the key. The electric power is supplied to the second coil built in the radio by using electromagnetic induction.
[0012]
At this time, due to the capacity of the battery, wireless power supply from the key must be performed in several times. For example, the inner cylinder needs to be fixed for 0.2 to 3 seconds.
[0013]
In other words, assuming that power supply to the electromagnetic actuator starts immediately after the trigger mechanism operates, the clutch mechanism in the electronic cylinder lock does not operate unless the inner cylinder is fixed for at least 0.3 to 4 seconds after the trigger mechanism operates. .
[0014]
On the other hand, if the key is fully rotated with the key inserted into the inner cylinder of the cylinder lock, the locking / unlocking operation is completed in about 0.2 seconds, that is, the inner cylinder is rotated.
[0015]
Therefore, the present invention can appropriately set the angle position for starting the locking and unlocking operation of the electronic cylinder lock, and can fix the start angle position for a necessary time to ensure the power supply to the electromagnetic actuator of the inner cylinder. It is an object of the present invention to provide a rotation control mechanism that can be performed in a simple manner.
[0016]
[Means for Solving the Problems]
In order to achieve the above object, the invention according to claim 1 is characterized in that the outer end portion of the inner cylinder that is coaxially mounted on the outer end portion of the outer cylinder of the electronic cylinder lock and is rotatably fitted to the outer cylinder. An annular permanent magnet arranged so as to surround , a semiconductor integrated circuit having a logic circuit and a memory, and a leading end of a combined key incorporating a battery extend along the width direction of the permanent magnet. A reed switch that is embedded so as to be close to each other, and that connects and disconnects the battery and the semiconductor integrated circuit. The one area and the other area are magnetized so as to have different magnetic poles, and the bisector of the major angle and the minor angle is the width of the keyhole at the joint key insertion angle position. as a right angle to the direction, to set the relative angular position of the permanent magnet relative to the outer tube, Te following When the key is inserted into the inner cylinder of the electronic cylinder lock, the reed switch does not close because both ends of the reed switch straddle both ends of one area. In the case where the reed switch is closed across different magnetic poles , the power supply time to the electromagnetic actuator of the clutch mechanism of the cylinder lock cylinder is secured after the reed switch is closed Then, a click body accommodation hole parallel to the central axis of the inner cylinder is formed in the inner cylinder step portion opposed to the back surface of the permanent magnet, and the click body and the click body are accommodated in the click body accommodation hole so that the click body is made permanent. While the inner cylinder is urged to elastically contact with the back surface of the magnet, the inner cylinder is aligned with the click body when the inner cylinder is rotated in a predetermined direction by an angle that is approximately half the difference between the superior angle and the subordinate angle. Back of magnet In part, clicking member forms a落込free click recess, by utilizing the elastic contact between the clicking member and click recesses, characterized in that so as to temporarily stop the duplicate key.
[0017]
Further, the invention according to claim 2 is disposed so as to surround the outer end portion of the inner cylinder that is coaxially mounted on the outer end portion of the outer cylinder of the electronic cylinder lock and is rotatably fitted to the outer cylinder. An annular permanent magnet , embedded in a semiconductor integrated circuit having a logic circuit and a memory, and a leading end of a combined key incorporating a battery, are embedded so as to extend along the width direction and close to the permanent magnet. And a reed switch for intermittently connecting the battery and the semiconductor integrated circuit, and the permanent magnet is connected to one area where the angle of looking at the central axis of the inner cylinder is an inferior angle and another area which is an inferior angle of the same angle The one area and the other area are magnetized so as to have different magnetic poles, and non-magnetized parts having the same angle with respect to the central axis of the inner cylinder are considered at both ends of these areas. Are connected to each other, and the inferior bisector is the key hole at the key insertion angle position. So as to be perpendicular to the width direction, to set the relative angular position of the permanent magnet relative to the outer tube, following Te, when forme difference a duplicate key to the inner cylinder of the electronic cylinder lock, both ends of the reed switch extending over the non-magnetized portion position It wants not closed the reed switch, so in what reed switch when the master key by a predetermined angle rotation is so reed switch is closed straddling between different magnetic poles, the reed switch is closed After that, for the purpose of securing the power supply time to the electromagnetic actuator of the clutch mechanism of the cylinder lock outer cylinder, the click body accommodation hole parallel to the central axis of the inner cylinder is formed in the inner cylinder step portion facing the back surface of the permanent magnet. The click body and the click body are housed in the click body housing hole and urged so that the click body is elastically contacted to the back surface of the permanent magnet, while the inner cylinder is not demagnetized from the key insertion angle position. Of the inner cylinder When pivoted to approximately half of the angle given direction angle anticipating cardiac axis, the permanent magnet that is consistent with clicking member on the back surface of the part, clicking member forms a落込free click recess, the clicking member and click recesses It is characterized in that the key combination is temporarily stopped by using elastic contact .
[0018]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
1 and 2, reference numeral 1 indicates an outer cylinder, reference numeral 2 indicates an inner cylinder, and the inner cylinder 2 is rotatably fitted to the outer cylinder 1 as described above.
[0019]
A clutch plate 4 having a tail piece 3 is rotatably fitted to the inner end of the outer cylinder 1.
[0020]
On the other hand, a partition plate 5 provided substantially at the center of the inner cylinder 2 and perpendicular to the inner cylinder axis is partitioned into an outer space 7 and an inner space 8 into which the key 6 is inserted, and is inserted into the outer space 7. An electromagnetic coil for exchanging information with the combined key 6 is stored, and a clutch mechanism for connecting the inner cylinder 2 and the clutch plate 4 when an unlocking signal is generated is stored in the inner space. Since it is not the gist of the invention, further detailed explanation is omitted.
[0021]
The outer end portion of the inner cylinder 2 has a small diameter as shown in FIG. 2, and an annular permanent magnet 9 is coaxially attached to the opening of the outer cylinder 1 so as to surround the small diameter portion.
[0022]
In the illustrated embodiment, as shown in FIG. 1, the engaging protrusions 10 and 10 protruding at two locations on the outer peripheral surface of the permanent magnet 9 are formed on the inner peripheral surface of the opening edge of the outer cylinder 1. The permanent magnets 9 are prevented from rotating by being fitted to the engaging recesses 11 and 11 from the front. Reference numeral 12 denotes a decorative ring.
[0023]
As shown in FIG. 4, the permanent magnet 9 has one area 91 in which the angle of looking at the central axis O of the inner cylinder is a dominant angle when viewed from the front, and an angle at which the angle of looking at the central axis of the inner cylinder is subordinate. For example, one area 91 is magnetized to the N pole and the other area 92 is magnetized to the S pole.
[0024]
In addition, the relative angular position of the permanent magnet with respect to the outer cylinder is set so that the bisector of the major angle and the minor angle is perpendicular to the width direction of the key hole at the key insertion angle position.
[0025]
That is, as shown in FIGS. 2 and 3, when the key hole 13 of the inner cylinder is horizontal at the key insertion angle position, the bisector of the superior angle and the minor angle makes the central axis O of the inner cylinder vertical. Let it pass.
[0026]
Furthermore, ½ of the difference between the superior angle and the inferior angle, that is, the angle α in FIG. 4 is almost the operating angle of the trigger mechanism according to the present invention, that is, the reed switch 16 described later is operated, and the IC circuit in the key is The ratio between one area 91 of the permanent magnet 9 and the other area 92 is determined so that the operating angle is energized.
[0027]
On the other hand, in FIG. 5, reference numeral 14 denotes a coil module which forms the main part of the key 6, and a first coil 15 is embedded at the tip of the coil module 14, and this coil is provided in the outer space of the inner cylinder. Signals are exchanged with the second coil that is not numbered, and power is supplied to the clutch mechanism.
[0028]
A reed switch 16 is embedded in the base portion of the coil module 14 so as to extend in the width direction, and is sealed with silicon rubber as indicated by hatching in FIGS.
[0029]
Further, in FIG. 5, reference numeral 17 denotes an outline of the holder. The holder 17 is made of, for example, plastic, and is integrally coupled with the base of the coil module 14 so as to be embedded at the tip. A storage room or the like is formed.
[0030]
The reed switch 16 is preferably embedded so as to be as close as possible to the tip surface of the holder 17 so as to be as close as possible to the permanent magnet 9 when the key 6 is inserted into the key hole 13 of the inner cylinder.
[0031]
1 and 2, reference numeral 18 denotes a notch continuously provided in a circular hole opened on the front surface of the decorative ring 12, and this notch 18 is a protrusion 19 (see FIG. 5) is allowed to pass through, but is for suppressing removal of the key after starting to rotate the key.
[0032]
On the other hand, as shown in FIG. 1, a click body accommodation hole 22 parallel to the central axis of the inner cylinder is formed in a step portion 21 of the inner cylinder facing the back surface of the permanent magnet 9. A click spring 23 and a click body 24 (click balls in the illustrated embodiment) are housed as compression coil springs.
[0033]
The click body is urged by the elasticity of the click spring 23 in the direction in which it is elastically contacted with the back surface of the permanent magnet 9.
[0034]
On the other hand, when the permanent magnet 9 is viewed from the back side, it is converted into the clock face and at the 12 o'clock angular position and the angular position of the left and right angle α (see FIG. 4), the radial position is the same as that of the click body 24. A total of three click recesses 25, 25 are opened in the same manner.
[0035]
The click recess 25 determines the key insertion angle position of the inner cylinder and the click position of the inner cylinder 2 in the locking direction and the unlocking direction with respect to the permanent magnet fixed to the outer cylinder 1.
[0036]
That is, when the inner cylinder is rotated by the key insertion angle position and the angle α in the clockwise and counterclockwise directions, the click body 24 falls into one of these click recesses 25 and 25, and the inner cylinder is adjusted to the angular position. Locks stably.
[0037]
In the illustrated embodiment, the click recess 25 is a bottomed circular hole, but it may be a groove having a V-shaped cross section extending in the radial direction of the permanent magnet 9, for example.
[0038]
In the rotation control mechanism according to the embodiment of the invention described in claim 1 configured as described above, when the key is inserted into the keyhole, as shown in FIG. 4, the reed switch 16 is permanently at a horizontal angular position. Proximity to the magnet 9.
[0039]
Therefore, as shown in FIG. 2, when the joint key 6 is fully inserted into the inner cylinder of the cylinder lock, the leg of the reed switch 16 straddles both ends of one area 91, and the movable contact piece in the reed switch has the same magnetic pole. Therefore, the reed switch 16 is not closed.
[0040]
However, as shown in FIG. 7, when the key is rotated clockwise by a predetermined angle α, the reed switch 16 is also rotated clockwise by the same angle, and as a result, the leg portion of the reed switch 16 straddles between different magnetic poles.
[0041]
Then, since the movable contact pieces in the reed switch 16 become different magnetic poles, they are attracted to each other and the reed switch is closed. As a result, the IC circuit in the key is energized to verify the above-mentioned secret code. And energization to the electromagnetic actuator in the inner cylinder is performed.
[0042]
At the same time, the click body 24 falls into the click recess 25 on the right side of FIG. 1, and the inner cylinder 2 is metastablely locked to the outer cylinder 1 via the permanent magnet. The position is stopped for a sufficient time required for the position, for example, 0.4 to 0.5 seconds.
[0043]
Therefore, it is possible to reliably secure time for power supply to the electromagnetic actuator using electromagnetic induction performed a plurality of times, which is performed between the first coil in the key and the second coil (not shown) in the inner cylinder. Can do.
[0044]
As shown in FIG. 7, if the rotation of the inner cylinder in the clockwise direction corresponds to the locking, the reed switch 16 is closed at the time of the rotation of the angle α in the counterclockwise direction. It goes without saying that the click body 22 falls into the click recess 25 on the left side and the power supply to the electromagnetic actuator for unlocking is reliably performed in the same manner as described above.
[0045]
FIG. 8 shows the main part of the trigger mechanism in the rotation control mechanism according to an embodiment of the invention described in claim 2, and in this embodiment, the angle at which the permanent magnet 9 looks at the central axis of the inner cylinder is inferior. The area 91 is divided into one area 91 and another area 92 that is a subordinate angle of the same angle, and the one area 91 and the other area 92 are magnetized so as to have different magnetic poles.
[0046]
Further, both ends of these areas 91 and 92 are connected to each other via non-magnetized portions 26 and 26 having the same angle to see the central axis of the inner cylinder. The relative angular position of the permanent magnet with respect to the outer cylinder is set so as to be perpendicular to the width direction of the key hole at the key insertion angle position.
[0047]
The angle at which the non-magnetized portion 26 looks at the inner cylinder axis is twice the angle α in FIG.
[0048]
The non-magnetized portion 26 can be configured in such a manner that the magnetic material is not magnetized, or a plastic block may be bonded with an adhesive.
[0049]
The configuration of the rotation control mechanism click device (see FIG. 1) according to the second aspect of the invention is the same as that of the first aspect of the invention.
[0050]
In the trigger mechanism according to the second aspect of the present invention shown in FIG. 8, when the key is rotated clockwise by α, the leg portion of the reed switch 16 straddles between the different magnetic poles, and the reed switch is closed and clicked. Since it is clear that the power supply to the electromagnetic actuator of the clutch mechanism is surely performed as a result of the operation of the device and locking the inner cylinder 2 at the click angle position for a while, further detailed description is omitted.
[0051]
【The invention's effect】
As is apparent from the above description, the present invention has an annular permanent magnet attached to the outer cylinder opening of the electronic cylinder lock, while a reed switch is embedded in the key, and the key is inserted into the key hole at a certain angle. When turning, the leg part of the reed switch straddles between the different magnetic poles, and a click device is provided between the inner cylinder step part and the back surface of the permanent magnet so that the angular position when the reed switch operates Since the lock is stable, when the key is rotated by a certain angle, the IC circuit in the key is energized to ensure the power supply time to the electromagnetic actuator. To do.
[Brief description of the drawings]
FIG. 1 is an external perspective view showing an exploded view of components of an electronic cylinder lock equipped with a rotation control device according to an embodiment of the present invention.
FIG. 2 is a horizontal cross-sectional view of an electronic cylinder lock equipped with a rotation control mechanism according to an embodiment of the present invention, with the click device omitted for clarity.
FIG. 3 is a vertical sectional view of an electronic cylinder lock equipped with a trigger mechanism according to an embodiment of the present invention, with a click device omitted for clarity.
FIG. 4 is a front view showing the main part of the trigger mechanism according to the first aspect of the present invention, and shows a state in which the key is inserted into the key hole.
FIG. 5 is a plan view of a coil module forming the tip of a key.
6 is a cross-sectional view taken along line VI-VI in FIG.
FIG. 7 is a front view showing a main part of the trigger mechanism according to the first aspect of the present invention, and shows a state in which the key is turned at a predetermined angle after the key is inserted into the key hole.
FIG. 8 is a front view showing the main part of the trigger mechanism according to the second aspect of the present invention, and shows a state in which the key is inserted into the key hole.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Outer cylinder 2 Inner cylinder 6 Joint key 9 Permanent magnet 13 Key hole 14 Coil module 16 Reed switch 21 Step part 22 Click body accommodation hole 23 Click spring 24 Click body 25 Click recessed part 26 Non-magnetized part

Claims

An annular permanent magnet, which is coaxially mounted on the outer end of the outer cylinder of the electronic cylinder lock and is rotatably fitted to the outer cylinder, is disposed so as to surround the outer end of the inner cylinder , a logic circuit, A semiconductor integrated circuit having a memory and a reed switch that is embedded in the leading end portion of a combined key incorporating the battery so as to extend along the width direction and close to the permanent magnet, and intermittently connects the battery and the semiconductor integrated circuit. has the door, the permanent magnet, and one zone angle anticipating a central axis of the inner cylinder is reflex angle, divided into the other zone is a minor angle, and these one zone and another zone The relative angular position of the permanent magnet with respect to the outer cylinder is magnetized so as to have different magnetic poles, and the bisector of the major angle and the minor angle is perpendicular to the width direction of the key hole at the key insertion angle position. set, more than Te, when you elaborate the difference between the duplicate key to the inner cylinder of the electronic cylinder lock, lead Since both ends of the switch straddle both ends of one area, the reed switch is not closed, and when the key is rotated by a predetermined angle, the reed switch straddles between different magnetic poles and the reed switch is closed. In this case, after the reed switch is closed , the inner cylinder step portion facing the back surface of the permanent magnet is placed in the inner cylinder step portion for the purpose of securing the power supply time to the electromagnetic actuator of the clutch mechanism of the cylinder lock outer cylinder . A click body accommodation hole parallel to the central axis of the cylinder is formed, and a click spring and a click body are housed in the click body accommodation hole, and the click body is urged to elastically contact the back surface of the permanent magnet. When the cylinder is rotated in a predetermined direction from the key insertion angle position, which is approximately half the difference between the superior angle and the subordinate angle, a click recess into which the click body falls on the back surface portion of the permanent magnet aligned with the click body Forming Electronic cylinder lock of the inner cylinder rotation control mechanism, characterized in that so as to temporarily stop the master key by using the elastic contact between the clicking member and click recesses.

An annular permanent magnet, which is coaxially mounted on the outer end of the outer cylinder of the electronic cylinder lock and is rotatably fitted to the outer cylinder, is disposed so as to surround the outer end of the inner cylinder , a logic circuit, A semiconductor integrated circuit having a memory and a reed switch that is embedded in the leading end portion of a combined key incorporating the battery so as to extend along the width direction and close to the permanent magnet, and intermittently connects the battery and the semiconductor integrated circuit. has the door, the permanent magnets, the inner cylinder and one zone angle anticipating a central axis which is minor angle, divided into the other zone is a minor angle of the same angle, one zone and the other thereof The areas are magnetized so as to have different magnetic poles, and both ends of these areas are connected to each other via non-magnetized parts having the same angle as the center axis of the inner cylinder, So that the bisector is perpendicular to the width direction of the keyhole at the key insertion angle position. For setting the relative angular position of the permanent magnet, than Te, when forme difference a duplicate key to the inner cylinder of the electronic cylinder lock is not the reed switch closes both ends of the reed switch so want extend over non-magnetized portion position, When the reed key is rotated by a predetermined angle, the reed switch straddles between different magnetic poles so that the reed switch is closed. After the reed switch is closed, the clutch of the cylinder lock outer cylinder is closed. For the purpose of securing the power supply time to the electromagnetic actuator of the mechanism, a click body accommodation hole parallel to the central axis of the inner cylinder is formed in the inner cylinder step portion facing the back surface of the permanent magnet, and a click spring is formed in the click body accommodation hole. The click body is housed and urged so that the click body is brought into elastic contact with the back surface of the permanent magnet, while the inner cylinder is approximately at an angle at which the non-magnetized portion looks at the central axis of the inner cylinder from the key insertion angle position. Half When rotated in an angle predetermined direction, the rear surface portion of the permanent magnet that is consistent with clicking member, clicking member forms a落込free click recesses, temporary master key by using the elastic contact between the clicking member and click recesses An inner cylinder rotation control mechanism for an electronic cylinder lock, wherein the inner cylinder rotation control mechanism is characterized in that it is stopped .