JP4350869B2

JP4350869B2 - Electronic cylinder lock trigger mechanism

Info

Publication number: JP4350869B2
Application number: JP2000119960A
Authority: JP
Inventors: 佐代藤原; 健輔本田; 敏範杉本; 洋亮河合
Original assignee: Secom Co Ltd
Current assignee: Secom Co Ltd
Priority date: 2000-04-20
Filing date: 2000-04-20
Publication date: 2009-10-21
Anticipated expiration: 2020-04-20
Also published as: JP2001303814A

Description

【０００１】
【発明の属する技術分野】
この発明は、電子シリンダ錠のトリガー機構（以下単にトリガー機構という）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】
そこで、この発明は、電子シリンダ錠の施解錠操作の開始時期を適切に設定できる新規なトリガー機構を提供することを目的としている。
【００１２】
【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ことを特徴とする。
【００１３】
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ことを特徴とする。
【００１４】
【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及び図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。
【００１５】
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。
【００１６】
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。
【００１７】
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が取付リング１１を介して外筒１の開口部に同軸に装着されている。なお、符号１２は飾りリングである。
【００１８】
上記永久磁石９は、図３に示すように、外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。
【００１９】
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。
【００２０】
すなわち、図１及び図２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を通るようにする。
【００２１】
更にまた、上記優角と劣角の差の１／２、すなわち図３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。
【００２２】
一方、図４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が、このことは本発明の要旨ではないから更に詳細な説明は省略する。
【００２３】
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４及び図５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。
【００２４】
更にまた、図４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。
【００２５】
なお、上記リードスイッチは、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。
【００２６】
また、図１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４参照)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。
【００２７】
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トリガー機構は、合鍵を鍵孔に挿入するときには、図３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に近接する。
【００２８】
そのため、図１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。
【００２９】
ところが、図６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。
【００３０】
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。
【００３１】
図７は請求項２に記載の発明の一実施例によるトリガー機構の主要部を示し、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。
【００３２】
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２１、２１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。
【００３３】
上記非着磁部位２１が内筒軸線を見込む角度は、図３の角度αの２倍とする。
【００３４】
なお、非着磁部位２１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。
【００３５】
図７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ことは明らかであるから、更に詳細な説明は省略する。
【００３６】
【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回路に通電させる、という所期の効果を確実に奏する。
【図面の簡単な説明】
【図１】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水平面による断面図。
【図２】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。
【図３】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４】合鍵の先端をなすコイルモジュールの平面図。
【図５】図４のＶ−Ｖ線による断面図。
【図６】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７】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非着磁部位[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an electronic cylinder lock trigger mechanism (hereinafter simply referred to as a trigger mechanism).
[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 of the normal cylinder lock when an unlocking signal is generated, and the inner cylinder is turned 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]
Accordingly, an object of the present invention is to provide a novel trigger mechanism that can appropriately set the start timing of the locking / unlocking operation of the electronic cylinder lock.
[0012]
[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 to surround;
A semiconductor integrated circuit having a logic circuit and a memory, and a built-in key that incorporates a battery are embedded along the width direction and close to a permanent magnet to intermittently connect the battery and the semiconductor integrated circuit. to and a reed switch, 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, one zone and the other thereof The permanent magnet with respect to the outer cylinder is magnetized so as to have different magnetic poles from each other 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. When the relative angle position is set and the key is inserted into the inner cylinder of the electronic cylinder lock, both ends of the reed switch straddle both ends of one area, so the reed switch is not closed and the key is locked. The reed switch is between different magnetic poles when rotated by a predetermined angle. Reed switch straddling is characterized in that so as to be closed.
[0013]
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 Therefore, 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 .
[0014]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
1 and 2, reference numeral 1 denotes an outer cylinder, reference numeral 2 denotes an inner cylinder, and the inner cylinder 2 is rotatably fitted to the outer cylinder 1 as described above.
[0015]
A clutch plate 4 having a tail piece 3 is rotatably fitted to the inner end of the outer cylinder 1.
[0016]
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.
[0017]
The outer end of the inner cylinder 2 has a small diameter as shown in FIG. 2, and an annular permanent magnet 9 is coaxial with the opening of the outer cylinder 1 via the mounting ring 11 so as to surround the small diameter part. It is attached to. Reference numeral 12 denotes a decorative ring.
[0018]
As shown in FIG. 3, 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 outside, and an inferior angle of looking at the central axis of the inner cylinder. The other area 92 is magnetized to, for example, the N pole, and the other area 92 is magnetized to the S pole.
[0019]
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.
[0020]
That is, as shown in FIGS. 1 and 2, 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 passes through the central axis O of the inner cylinder. To.
[0021]
Furthermore, 1/2 of the difference between the above-mentioned dominant angle and the inferior angle, that is, the angle α in FIG. The ratio between one area 91 of the permanent magnet 9 and the other area 92 is determined so that the operating angle is set.
[0022]
On the other hand, in FIG. 4, reference numeral 14 denotes a coil module that 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. However, this is not the gist of the present invention, and further detailed description is omitted.
[0023]
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 shown by hatching in FIGS.
[0024]
Further, in FIG. 4, reference numeral 17 denotes an outline of the holder. This 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.
[0025]
The reed switch is preferably embedded so as to be as close as possible to the front end 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.
[0026]
Further, in FIG. 1, 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. 4) at the end of the key when the key is inserted. ) Is allowed to pass, but after the start of turning the key, it is for suppressing the removal of the key.
[0027]
In the trigger mechanism according to the embodiment of the present invention as described above, when the key is inserted into the key hole, as shown in FIG. 3, the reed switch 16 has a permanent magnet at a horizontal angular position. Proximity to.
[0028]
Therefore, as shown in FIG. 1, when the joint key 6 is fully inserted into the inner cylinder of the cylinder lock, the leg portion 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.
[0029]
However, as shown in FIG. 6, 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.
[0030]
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.
[0031]
FIG. 7 shows the main part of a trigger mechanism according to an embodiment of the invention as set forth in claim 2, and this embodiment is a section 91 in which the permanent magnet 9 is inferior in angle with respect to the central axis of the inner cylinder. Are divided into other sub-regions 92 having the same angle, and the one sub-region 91 and the other sub-region 92 are magnetized to have different magnetic poles.
[0032]
Further, both ends of these areas 91 and 92 are connected to each other via the non-magnetized portions 21 and 21 having the same angle to see the central axis of the inner cylinder, and further, the above-described subdivided bisector is formed. 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.
[0033]
The angle at which the non-magnetized portion 21 looks into the inner cylinder axis is twice the angle α in FIG.
[0034]
The non-magnetized portion 21 can be configured in such a manner that a magnetic material is not magnetized, or a plastic block, for example, may be bonded with an adhesive.
[0035]
In the trigger mechanism according to the second aspect of the present invention shown in FIG. 7, it is clear that 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. Therefore, further detailed description is omitted.
[0036]
【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. Since the leg part of the reed switch straddles between the different magnetic poles when the key is rotated, the expected effect of energizing the IC circuit in the key when the key is rotated by a certain angle is reliably produced.
[Brief description of the drawings]
FIG. 1 is a horizontal sectional view of an electronic cylinder lock equipped with a trigger mechanism according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view of a vertical surface of an electronic cylinder lock equipped with a trigger mechanism according to an embodiment of the present invention.
FIG. 3 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 a key is inserted into a key hole;
FIG. 4 is a plan view of a coil module forming the tip of a key.
5 is a cross-sectional view taken along line VV in FIG.
FIG. 6 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. 7 is a front view showing a 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 Non-magnetized part

Claims

An annular permanent magnet that is coaxially mounted on the outer end of the outer cylinder of the electronic cylinder lock and is disposed so as to surround the outer end of the inner cylinder that is rotatably fitted to the outer cylinder;
A semiconductor integrated circuit having a logic circuit and a memory, and a built-in key that incorporates a battery are embedded along the width direction and close to a permanent magnet to intermittently connect the battery and the semiconductor integrated circuit. to and a reed switch, 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, one zone and the other thereof The permanent magnet with respect to the outer cylinder is magnetized so as to have different magnetic poles from each other 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. When the relative angle position is set and the key is inserted into the inner cylinder of the electronic cylinder lock, both ends of the reed switch straddle both ends of one area, so the reed switch is not closed and the key is locked. The reed switch is between different magnetic poles when rotated by a predetermined angle. Electronic cylinder lock of the trigger mechanism reed switch straddling is characterized in that so as to be closed.

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. The permanent magnet is divided into 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, and the one area and the other 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, A trigger mechanism for an electronic cylinder lock, wherein a reed switch straddles between different magnetic poles and the reed switch is closed when the key is rotated by a predetermined angle .