JP2006138072A

JP2006138072A - Clutch mechanism for electric lock

Info

Publication number: JP2006138072A
Application number: JP2004326294A
Authority: JP
Inventors: Katsunori Nakamura; 中村勝則
Original assignee: Miwa Lock KK; Miwa Lock Co Ltd
Current assignee: Miwa Lock KK; Miwa Lock Co Ltd
Priority date: 2004-11-10
Filing date: 2004-11-10
Publication date: 2006-06-01
Anticipated expiration: 2024-11-10
Also published as: JP4619096B2

Abstract

<P>PROBLEM TO BE SOLVED: To propose a clutch mechanism capable of forcibly changing into an unlocking state even when a dead bolt projects halfway not only in a fully locked normal state but also in an abnormal state such as service interruption. <P>SOLUTION: A clutch means interposed between a gear transmission means and a tumbler comprises a driving gear and built in a recess of the driving gear to form a recess for thread portion and formed of a noncircular engaging plate cooperating together with the driving arm and the driving gear in the normal state. In the abnormal state, when torque of a fixed value or more is applied to the engaging plate by duplicate key operation through the driving arm, the engaging plate has elastic engaging displacement parts displaceable inward to come off out of an engaged part of the recess. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

本発明は、電気錠のクラッチ機構に関する。 The present invention relates to a clutch mechanism for an electric lock.

特許文献１には、「制御部に制御されて駆動する駆動モータ、この駆動モータの駆動力をダルマに伝達する歯車伝達手段、前記ダルマの駆動力により進退動するデッドボルト、手動の操作力により回転する前記ダルマの駆動力を駆動モータに対して切断可能なクラッチ手段を備えた電気錠のクラッチ機構に於いて、火災や地震が発生した非常時に、錠箱に付設した外部操作部材の操作により、錠箱内に設けた非常解錠手段の作動を介して前記デッドボルトを錠箱内へ後退させる事項」が記載されている。 In Patent Document 1, “a driving motor controlled and driven by a control unit, a gear transmission means for transmitting the driving force of this driving motor to the dharma, a dead bolt that moves forward and backward by the driving force of the dharma, and a manual operating force. In the clutch mechanism of the electric lock provided with the clutch means capable of disconnecting the driving force of the rotating dharma with respect to the drive motor, by an operation of an external operation member attached to the lock box in the event of a fire or an earthquake "Matters for retracting the dead bolt into the lock box through the operation of the emergency unlocking means provided in the lock box" are described.

しかして、前記非常解錠手段は、基本的には、錠箱に直接又は間接的に設けられた棒状の外部操作部材と、錠箱内に回動可能に設けられ、かつ、前記外部操作部材の内端部に一端部が枢着された解除レバーと、この解除レバーの他端部に上端部が係合すると共に、その他端部が解錠用受け歯車にラック部が噛み合うラック板と共働可能に係合連結された長板状の解錠板とから構成されている。 Therefore, the emergency unlocking means is basically a rod-like external operation member provided directly or indirectly in the lock box, and is provided rotatably in the lock box, and the external operation member. A release lever having one end pivotally attached to the inner end thereof, and a rack plate in which the upper end engages with the other end of the release lever and the other end engages with the unlocking receiving gear. It is composed of a long plate-like unlocking plate that is operatively engaged and connected.

上記構成に於いては、非常時に、錠箱の側壁に添設された外部操作部材用の収納箱の表面板等を破壊し、外部操作部材を一定方向へ操作すると、Ｌ形状の解除レバーが傾倒方向へ回転し、その結果、解錠板、ラック板、解錠用受け歯車、ダルマを介してデッドボルトを錠箱内へ後退させることができる。 In the above configuration, when an external operation member is operated in a certain direction by destroying the surface plate of the storage box for the external operation member attached to the side wall of the lock box in an emergency, the L-shaped release lever is As a result, the dead bolt can be retracted into the lock box via the unlocking plate, the rack plate, the unlocking receiving gear, and the dharma.

したがって、特許文献１に記載の発明は、火災や地震の非常時に外部操作部材を操作すると、強制的に電気錠を解錠状態にできるので、劇場、大きなイベント会場等の非常口用の扉に適合している。
特開平８−３０３０７７公報 Therefore, the invention described in Patent Document 1 can be used to force the electric lock to be unlocked when an external operation member is operated in the event of a fire or earthquake, so it is suitable for emergency exit doors such as theaters and large event venues. is doing.
JP-A-8-303077

特許文献１に記載の発明は、特定の場所の非常事態を想定した電気錠であるから、非常時に解錠する場合には、収納箱の表面板等を破壊し、外部操作部材を一定方向へ操作する必要性がある。したがって、例えば停電等の異常時に合鍵を利用して解錠状態にすることができない場合があるという問題点がある。 Since the invention described in Patent Document 1 is an electric lock that assumes an emergency in a specific place, when unlocking in an emergency, the surface plate or the like of the storage box is destroyed and the external operation member is moved in a certain direction. There is a need to operate. Therefore, there is a problem in that it may not be possible to use the key to unlock when there is an abnormality such as a power failure.

本発明の第１の目的は、完全施錠時の正常時のみならず、異常時（例えば停電時）に於いて、仮に中途半端にデッドボルトが突出している場合でも、強制的に解錠状態にできるクラッチ機構を提案することである。第２の目的は、クラッチ機構を利用することで、極力、主要な構成部品を少なくし、例えば駆動歯車のみで、或いは駆動歯車と共働すると共に単独で回転可能な係合板、或いはまた駆動歯車と共働すると共に単独で摩擦回転可能な捕捉板により、第１の目的を達成することである。第３の目的は、駆動歯車の回転位置の信号を耐久性に優れたスイッチにより取得することである。 The first object of the present invention is to force the unlocked state not only when it is normally locked but also when it is abnormal (for example, during a power failure), even if a dead bolt protrudes halfway. It is to propose a possible clutch mechanism. The second object is to reduce the number of main components as much as possible by using a clutch mechanism. For example, an engagement plate that can be rotated independently only by a drive gear, or cooperating with a drive gear, or also a drive gear. The first object is achieved by a trapping plate that is capable of co-rotating and independently frictionally rotated. The third object is to acquire a signal of the rotational position of the drive gear by a switch having excellent durability.

本発明の電気錠のクラッチ機構は、クラッチ手段は、歯車伝達手段とダルマとの間に介在しており、また、駆動歯車と、この駆動歯車の凹所内に駆動アームの係合突起を案内する「にがし部分」を形成するように組み込まれ、かつ、正常時には駆動アーム及び駆動歯車と一緒になって共働する非円形状の係合板とから成り、一方、異常時に於いて、合鍵操作によって前記駆動アームを介して係合板に一定以上のトルクが加わった場合には、該係合板は、前記凹所の被係合部から外れるように内側に変位し得る単数又は複数個の弾性係合変位部を有することを特徴とする。 In the clutch mechanism of the electric lock according to the present invention, the clutch means is interposed between the gear transmission means and the dharma, and guides the engagement protrusion of the drive arm into the drive gear and the recess of the drive gear. It consists of a non-circular engagement plate that is incorporated so as to form a “burning portion” and cooperates with the drive arm and drive gear in the normal state. When a certain torque or more is applied to the engagement plate via the drive arm, the engagement plate is one or more elastic members that can be displaced inward so as to be disengaged from the engaged portion of the recess. It has a joint displacement part.

また、本発明の電気錠のクラッチ機構は、クラッチ手段は、歯車伝達手段とダルマとの間に介在し、かつ、一側上面の周方向に「第１にがし溝」とヒューズ部分を介して該第１にがし溝と連通可能な「第２にがし溝」とを有する駆動歯車部材と、正常時には前記第１にがし溝に他端部の係合突起が係合すると共に、一端部がダルマに枢着された駆動アームとで構成され、一方、異常時に於いて、合鍵操作によってダルマと共働する駆動アームを介して前記ヒューズ部分に一定以上のトルクが加わった場合には、該ヒューズ部分が切れて、或いは外れて駆動アームの前記係合突起が「第２にがし溝」へと滑りながら移動することを特徴とする。 In the clutch mechanism of the electric lock according to the present invention, the clutch means is interposed between the gear transmission means and the dharma, and in the circumferential direction of the upper surface of one side via a “first strip groove” and a fuse portion. A drive gear member having a "second strip groove" that can communicate with the first strip groove, and an engagement protrusion at the other end is engaged with the first strip groove in a normal state. In the case of an abnormality, when a torque exceeding a certain level is applied to the fuse part via the drive arm that cooperates with the dharma by a key operation, Is characterized in that the fuse portion is cut or detached and the engagement projection of the drive arm moves while sliding into the “second tear groove”.

さらに、本発明の電気錠のクラッチ機構は、クラッチ手段は、歯車伝達手段とダルマとの間に介在しており、また、駆動歯車と、正常時にはこの駆動歯車と一緒になって共働するように該駆動歯車に圧接状態に乗っかっていると共に、周方向に「にがし部分」を有し、かつ、単独で摩擦回転可能な弾発性の捕捉板と、前記にがし部分に他端部の係合突起が係合すると共に、一端部がダルマに枢着された駆動アームとで構成され、一方、異常時に於いて、合鍵操作によって前記駆動アームを介して捕捉板に一定以上のトルクが加わった場合には、該捕捉板は、駆動歯車に対して摩擦回転することを特徴とする。 Furthermore, in the clutch mechanism of the electric lock according to the present invention, the clutch means is interposed between the gear transmission means and the dharma, and the drive gear and the drive gear normally operate together with the drive gear. And a resiliently catching plate that is in a state of pressure contact with the drive gear and that has a “burring portion” in the circumferential direction and is capable of frictional rotation alone, and the other end of the biting portion. The engagement protrusion of the part engages and one end part is composed of a drive arm pivotally attached to the dharma. On the other hand, when an abnormality occurs, a torque exceeding a certain level is applied to the capture plate via the drive arm by a key lock operation. When is added, the trapping plate is frictionally rotated with respect to the drive gear.

（１）完全施錠時の正常時のみならず、異常時（例えば停電時）に於いて、合鍵操作により、突出しているデッドボルトを、強制的に解錠状態にすることができる。したがって、解錠用の外部操作部材、或いは錠箱の外に外端部が突出する解錠用の操作部材等を設ける必要がない。
（２）クラッチ機構を構成する駆動歯車を、コペルニクス的発想により「一物品」にすることにより、又は主な部材である駆動歯車部材を「二物品」にして第１の目的を達成することができる。
（３）駆動歯車の回転位置の信号を耐久性に優れたスイッチにより取得することができる。 (1) The projecting dead bolt can be forcibly brought into the unlocked state by a key-locking operation not only in the normal state at the time of complete locking but also in an abnormal time (for example, during a power failure). Therefore, it is not necessary to provide an unlocking operation member or an unlocking operation member whose outer end protrudes outside the lock box.
(2) The drive gear constituting the clutch mechanism is made “one article” based on the Copernicus idea, or the drive gear member as the main member is made “two articles” to achieve the first object. it can.
(3) The rotation position signal of the drive gear can be acquired by a switch having excellent durability.

以下、図１乃至図１１に示す本発明を実施するための最良の形態（これを「第１実施例」とする。）により説明する。まず、「独立請求項」についての主要な特徴点から説明し、次に、新規な加味的事項を説明する。 The best mode for carrying out the present invention shown in FIGS. 1 to 11 (hereinafter referred to as “first embodiment”) will be described below. First, the main features of the “independent claim” will be described, and then, a new consideration will be described.

（１）環境部材
本発明は、「制御部６１に制御されて駆動する駆動モータ４１、この駆動モータの駆動力をダルマ２１に伝達する歯車伝達手段４２、前記ダルマの駆動力により進退動するデッドボルト２、手動の操作力により回転する前記ダルマ２１の駆動力を駆動モータ４２に対して切断可能なクラッチ手段を備えた電気錠のクラッチ機構」を前提するので、まず、環境部材について説明する。 (1) Environmental member The present invention is “a drive motor 41 controlled and driven by the control unit 61, a gear transmission means 42 that transmits the driving force of the driving motor to the dharma 21, and a dead that moves forward and backward by the driving force of the dharma. First, the environmental member will be described since it is premised on the “clutch mechanism of an electric lock provided with clutch means capable of disconnecting the driving force of the bolt 2 and the dharma 21 rotated by manual operation force with respect to the driving motor 42”.

１は錠箱、２は錠箱１のフロント１ｃを基準にして駆動モータ４１の駆動力により進退動するデッドボルトである。デッドボルト２は、駆動モータ４１の駆動力により回転する歯車伝達手段４２、クラッチ機能を有する駆動歯車部材５１、この駆動歯車部材５１に係合する駆動アーム５５、この駆動アーム５５と共働するダルマ２１、ダルマ２１に連結されたクランクアーム８を介して進退動する。 Reference numeral 1 denotes a lock box. Reference numeral 2 denotes a dead bolt that moves forward and backward by the driving force of the drive motor 41 with reference to the front 1c of the lock box 1. The dead bolt 2 includes a gear transmission means 42 that rotates by the driving force of the driving motor 41, a driving gear member 51 having a clutch function, a driving arm 55 that engages with the driving gear member 51, and a dharma that cooperates with the driving arm 55. 21. It moves forward and backward through the crank arm 8 connected to the dharma 21.

錠箱１の上端部の角部分には、配線用取出し口６２が設けられ、該取出し口６２にはプリント基板６３側の接続部分（接続端子）６４が嵌り合う。この接続部分（接続端子）６４には、図示しない制御室側へ案内される外部配線の接続部分６５が脱着自在に接続する。 An extraction port 62 for wiring is provided at a corner portion of the upper end portion of the lock box 1, and a connection portion (connection terminal) 64 on the printed circuit board 63 side fits into the extraction port 62. A connection portion 65 of external wiring guided to the control room (not shown) is detachably connected to the connection portion (connection terminal) 64.

本実施例では、デッドボルト２を案内する案内部材５を基準にして該案内部材５の後端面５ｂと錠箱１の後壁４との間に駆動歯車部材５１を配設するための空間部分４０が設定されている。また、案内部材５の下方には、ダルマ２１を配設するための下部空間５９が設定されている。そして、案内部材５の上方と錠箱１の上壁との間にその余の空間５８が設定されている。 In this embodiment, a space portion for disposing a drive gear member 51 between the rear end surface 5b of the guide member 5 and the rear wall 4 of the lock box 1 with reference to the guide member 5 for guiding the dead bolt 2. 40 is set. A lower space 59 for disposing the dharma 21 is set below the guide member 5. A remaining space 58 is set between the upper portion of the guide member 5 and the upper wall of the lock box 1.

（２）本発明の主要な特徴点−クラッチ機構
本発明の特徴点は、まず、駆動歯車部材５１を、デッドボルトの後方と錠箱１の後壁４との間の空間部分４０に設けたことである。すなわち、デッドボルト２の後端面１４或いは案内部材５の後端面５ｂと錠箱１の後壁４との間に空間部分４０を設け、この空間部分４０に駆動モータ４１の駆動力により制御される歯車伝達手段４２を介して正逆方向に回動可能な駆動モータ側の駆動歯車部材５１を配設したことである。 (2) Main Features of the Present Invention-Clutch Mechanism First, the drive gear member 51 is provided in the space portion 40 between the rear of the dead bolt and the rear wall 4 of the lock box 1. That is. That is, a space portion 40 is provided between the rear end surface 14 of the dead bolt 2 or the rear end surface 5 b of the guide member 5 and the rear wall 4 of the lock box 1, and the space portion 40 is controlled by the driving force of the drive motor 41. The drive gear member 51 on the drive motor side that can be rotated in the forward and reverse directions via the gear transmission means 42 is provided.

次に、この駆動歯車部材５１に対してクラッチ機能を付与すると共に、停電等の異常時に施錠状態或いは中途半端に突出しているデッドボルト２を合鍵操作により強制的に解錠状態にできるように工夫をしていることである。 Next, the drive gear member 51 is provided with a clutch function, and is devised so that the dead bolt 2 protruding in the locked state or halfway can be forcedly unlocked by a key operation when an abnormality such as a power failure occurs. It is doing.

本実施例のクラッチ手段は、駆動歯車５２と、この駆動歯車５２の凹所５２ａ内に駆動アーム５５の係合突起５６を案内する「にがし部分５７」を形成するように組み込まれ、かつ、正常時には駆動アーム５５及び駆動歯車５２と一緒になって共働する非円形状の係合板５３とから構成されている。この係合板５３は、平常時、弾性係合変位部５３ａを介して駆動歯車５２に一体的に係合している。 The clutch means of the present embodiment is incorporated so as to form a driving gear 52 and a “breaking portion 57” for guiding the engaging projection 56 of the driving arm 55 in the recess 52a of the driving gear 52, and In a normal state, it is composed of a non-circular engagement plate 53 that cooperates with the drive arm 55 and the drive gear 52. The engagement plate 53 is integrally engaged with the drive gear 52 through an elastic engagement displacement portion 53a in a normal state.

しかして、本実施例のクラッチ手段は、特に異常時に於いて、合鍵操作によって駆動アーム５５を介して係合板５３に一定以上のトルクが加わった場合には、該係合板５３は、駆動歯車５２の凹所５２ａの内周壁の切欠溝状被係合部５２ｂから外れるように内側に変位し得る弾性係合変位部５３ａを有する。 Thus, the clutch means according to the present embodiment is configured so that the engagement plate 53 is connected to the drive gear 52 when a certain level of torque is applied to the engagement plate 53 via the drive arm 55 by the keying operation, particularly in an abnormal state. It has an elastic engagement displacement portion 53a that can be displaced inward so as to be disengaged from the notched groove-like engaged portion 52b of the inner peripheral wall of the recess 52a.

ここで、図４及び図５を参照にして駆動歯車５２と係合板５３の具体的構成を説明する。なお、符号が多くなるので、部分用語の符号は割愛する。 Here, a specific configuration of the drive gear 52 and the engagement plate 53 will be described with reference to FIGS. 4 and 5. In addition, since the code | symbol increases, the code | symbol of the partial term is omitted.

さて、金属製又は合成樹脂製の駆動歯車５２は、周側にギヤ部が形成されていると共に、その中心部に軸用の貫通孔を有する。駆動歯車５２は貫通孔を貫通（遊挿）する中心軸５４に関着状態に設けられている。一側上面に形成した凹所５２ａは貫通孔と同心円上に設けられている。一方、合成樹脂製の係合板５３は、全体として半円形状に形成され、その筒状中心部に前記中心軸５４を遊挿するようにして前記凹所５２ａ内に組み込まれる。図４で示すように係合板５３が凹所５２ａ内に組み込まれると、係合板５３の弾性係合変位部５３ａの小突起状の係合部５３ｂが駆動歯車５２の被係合部５２ｂに係合するので、係合板５３は駆動歯車５２と合体する（但し、係合板５３は単独で摩擦回転可能）。 Now, the drive gear 52 made of metal or synthetic resin has a gear portion formed on the peripheral side, and has a through-hole for a shaft at the center thereof. The drive gear 52 is attached to a central shaft 54 that penetrates (freely inserts) the through hole. The recess 52a formed on the upper surface of one side is provided concentrically with the through hole. On the other hand, the engaging plate 53 made of synthetic resin is formed in a semicircular shape as a whole, and is incorporated into the recess 52a so that the central shaft 54 is loosely inserted into the cylindrical central portion thereof. As shown in FIG. 4, when the engagement plate 53 is incorporated in the recess 52a, the small protrusion-like engagement portion 53b of the elastic engagement displacement portion 53a of the engagement plate 53 is engaged with the engaged portion 52b of the drive gear 52. Therefore, the engagement plate 53 is united with the drive gear 52 (however, the engagement plate 53 can be independently rotated by friction).

しかして、係合板５３は、「にがし部分５７」を形成する両端部に駆動アーム５５の係合突起５６が選択的に係合する係止面を有する。また、係合板５３は、環状中心部から幅広状に広がった半円部分を有し、この半円部分の中央部寄りの部位から他端部にかけて貫通孔と同心円上に切欠部が形成されている。そのために、係合板５３の弾性係合変位部５３ａは、半円部分の両端部と連設する周方向の細幅の弧状部となっている。この弧状部の略中央部に駆動歯車５２の凹所５２ａの内周壁に形成した単数又は複数個の切欠溝状被係合部５２ｂに係脱可能な小突起状係合部５３ｂが形成されている。そして、半円部分の一方の幅広端部に磁石が固定的に嵌め込まれている。 Thus, the engagement plate 53 has a locking surface to which the engagement protrusion 56 of the drive arm 55 selectively engages at both ends forming the “cutting portion 57”. Further, the engagement plate 53 has a semicircular portion that widens from the annular central portion, and a notch portion is formed concentrically with the through hole from the portion near the center of the semicircular portion to the other end portion. Yes. For this purpose, the elastic engagement displacement portion 53a of the engagement plate 53 is an arc-shaped portion having a narrow width in the circumferential direction that is connected to both end portions of the semicircular portion. A small protrusion-like engaging portion 53b that can be engaged and disengaged with one or a plurality of notched groove-like engaged portions 52b formed on the inner peripheral wall of the recess 52a of the drive gear 52 is formed at a substantially central portion of the arc-shaped portion. Yes. A magnet is fixedly fitted to one wide end of the semicircular portion.

（３）作用−正常時−手動時の動力切断
図１は施錠状態の説明図、図２は電動又は手動を問わず、正常時又は異常時に於いて、デッドボルト２が突出した時、例えば合鍵操作により、デッドボルト２を解錠する場合の説明図である。 (3) Operation-Normal-Power cut during manual operation Fig. 1 is an explanatory diagram of a locked state, and Fig. 2 is a case where a dead bolt 2 protrudes during normal operation or abnormal operation regardless of electric or manual operation. It is explanatory drawing in the case of unlocking the deadbolt 2 by operation.

図示しない合鍵の回転操作により、ダルマ２１が解錠方向（図２の矢印Ａで示す時計方向）へ所定量回転しても、クラッチ機能を有する駆動歯車部材５１はそのまま所定位置に停止し、駆動アーム５５だけがその係合突起５６を介して駆動歯車部材５１の逃がし部分５７を滑っていく。この時、駆動歯車５２と係合板５３は係合状態で合体しており、また係合板５３は駆動アーム５５の係合突起５６から異常な力を受けない。 Even if the dharma 21 is rotated by a predetermined amount in the unlocking direction (clockwise direction indicated by arrow A in FIG. 2) by a rotation operation of a key not shown, the drive gear member 51 having the clutch function is stopped at a predetermined position and driven. Only the arm 55 slides on the relief portion 57 of the drive gear member 51 through the engaging projection 56. At this time, the drive gear 52 and the engagement plate 53 are combined in an engaged state, and the engagement plate 53 does not receive an abnormal force from the engagement protrusion 56 of the drive arm 55.

したがって、駆動歯車部材５１の手動時の動力切断機能により、駆動モータ４１の出力軸のギヤ部或いは第１伝動歯車４３は、ダルマ２１の駆動力の影響を受けず、デッドボルト２がダルマ２１及びクランクアーム８を介して図２の矢印Ｂ方向へと後退する。したがって、停電時にデッドボルト２が完全に突出していても、合鍵操作により、デッドボルト２を解錠することができる。 Therefore, due to the manual power cutting function of the drive gear member 51, the gear portion of the output shaft of the drive motor 41 or the first transmission gear 43 is not affected by the driving force of the dharma 21, and the dead bolt 2 is It retreats in the direction of arrow B in FIG. Therefore, even if the deadbolt 2 protrudes completely at the time of a power failure, the deadbolt 2 can be unlocked by the key lock operation.

（４）作用−異常時−手動時の強制的動力切断
図３及び図４を参照して異常時における手動時の強制的動力切断について説明する。これは本発明の特段の作用である。ここで異常時の代表例は「停電」であり、かつ、駆動歯車部材５１が「原点位置」でない場合である。 (4) Action-Abnormal-Forced Forced Power Disconnection at Manual Referring to FIG. 3 and FIG. This is a special effect of the present invention. Here, a representative example at the time of abnormality is “power failure” and the drive gear member 51 is not “origin position”.

図３は駆動歯車部材５１が中途位置に停止している概略説明図である。図４は係合板５３がその中途位置から停止状態の駆動歯車５２とは別個に解錠位置へと単独回転する場合の概略説明図である。図４は、特に駆動歯車部材５１の係合板５３と駆動アームの係合突起５６の係合位置の関係を示している。 FIG. 3 is a schematic explanatory view in which the drive gear member 51 is stopped at the midway position. FIG. 4 is a schematic explanatory view when the engagement plate 53 is independently rotated from the midway position to the unlocked position separately from the stopped drive gear 52. FIG. 4 particularly shows the relationship between the engagement positions of the engagement plate 53 of the drive gear member 51 and the engagement projection 56 of the drive arm.

さて、正常時には給電が可能であるから、施錠又は解錠のいずれの方向であれ、制御部６１で制御される駆動モータ４１が起動すると、駆動モータ４１の出力軸の第１伝動歯車４３を含む歯車伝達手段４２を介して駆動歯車部材５１が３６０度回転可能である。 Since power can be supplied in a normal state, the first transmission gear 43 of the output shaft of the drive motor 41 is included when the drive motor 41 controlled by the control unit 61 is activated in any direction of locking or unlocking. The drive gear member 51 can rotate 360 degrees via the gear transmission means 42.

今仮に、制御部６１で制御により駆動モータ４１が駆動中（例えば各部材が解錠方向に作動中）に緊急事態が発生して「停電」したと仮定する。そうすると、駆動歯車部材５１の駆動歯車５２は中途でその回転を停止し、駆動モータ４１が再起動しない限り動かない。そこで、合鍵で所要の力を入れてダルマ２１を解錠方向へ回すと、係合板５３は、その弾性係合変位部５３ａが駆動歯車５２の凹所５２ａの被係合部５２ｂから外れるように内側に変位するので、図４で示すように単独で摩擦回転する。 Suppose now that an emergency occurred and a “power failure” occurred while the drive motor 41 was being driven by the control of the control unit 61 (for example, each member was operating in the unlocking direction). Then, the drive gear 52 of the drive gear member 51 stops its rotation halfway and does not move unless the drive motor 41 is restarted. Therefore, when the required force is applied with the key and the dharma 21 is rotated in the unlocking direction, the engagement plate 53 is arranged such that the elastic engagement displacement portion 53a is disengaged from the engaged portion 52b of the recess 52a of the drive gear 52. Since it is displaced inward, it rotates by friction alone as shown in FIG.

（５）制御部の制御による動力伝達機構
制御部の制御による動力伝達機構は、制御部６１に制御される駆動モータ（例えばマイクロモータ）４１、この駆動モータ４１の駆動力により回転する歯車伝達手段４２、この歯車伝達手段４２の伝動力により正逆方向へ回転する駆動歯車部材５１、この駆動歯車部材５１が、所定量回転すると、駆動歯車部材５１の係合板５３の係止面５３ｃ，５３ｃ及びこれらの係止面５３ｃ，５３ｃに選択的に係合する係合突起５６介して所定方向へと移動する駆動アーム５５、この駆動アーム５５と共働するように軸受け２２に設けられたダルマ２１、このダルマ２１に連結され、かつ、デッドボルト２１を押し出す又は引き戻すクランクアーム８とから成る。なお、本実施例の駆動歯車部材５１は、例えば３６０度回転すると、解錠方向では一つの係止面５３ｃは駆動アームを引っ張り、一方、施錠方向では他の係止面５３ｃは駆動アームを押し込む。 (5) Power transmission mechanism controlled by control unit The power transmission mechanism controlled by the control unit includes a drive motor (for example, a micromotor) 41 controlled by the control unit 61, and a gear transmission unit that rotates by the driving force of the drive motor 41. 42, a drive gear member 51 that rotates in the forward and reverse directions by the transmission power of the gear transmission means 42, and when the drive gear member 51 rotates a predetermined amount, the engagement surfaces 53c, 53c of the engagement plate 53 of the drive gear member 51 and A driving arm 55 that moves in a predetermined direction via an engaging projection 56 that selectively engages with the locking surfaces 53c, 53c, a dharma 21 that is provided on the bearing 22 so as to cooperate with the driving arm 55; The crank arm 8 is connected to the dharma 21 and pushes out or pulls out the dead bolt 21. When the driving gear member 51 of the present embodiment rotates 360 degrees, for example, one locking surface 53c pulls the driving arm in the unlocking direction, while the other locking surface 53c pushes the driving arm in the locking direction. .

（６）歯車伝達手段４２
図６及び図７は歯車伝達手段４２の一例を示す。歯車伝達手段４２は、電動力でデッドボルト２を進退動させる場合にその機能を発揮する。歯車伝達手段４２は、複数個の伝動歯車で構成されている。４３は駆動モータ４１の出力軸に設けられたギヤ部或いは第１伝動歯車、４４はこのギヤ部や第１伝動歯車４３に噛合する第２伝動歯車、４５は第２伝動歯車４４に噛合する第３伝動歯車、４６は第３伝動歯車４５に噛合する第４伝動歯車である。 (6) Gear transmission means 42
6 and 7 show an example of the gear transmission means 42. FIG. The gear transmission means 42 exhibits its function when the dead bolt 2 is moved forward and backward by electric force. The gear transmission means 42 includes a plurality of transmission gears. 43 is a gear portion or first transmission gear provided on the output shaft of the drive motor 41, 44 is a second transmission gear meshing with the gear portion and the first transmission gear 43, and 45 is a first gear meshing with the second transmission gear 44. A third transmission gear 46 is a fourth transmission gear that meshes with the third transmission gear 45.

ところで、前記第４伝動歯車４６は、例えば第２伝動歯車４４の中心孔４７に嵌入する軸状嵌合部４８を有し、該軸状嵌合部４８の先端部に駆動歯車部材５１に噛合する小径のギヤ部４６ａが形成されている。また、第４伝動歯車４６の大径のギヤ部４６ｂは、第３伝動歯車４５の一側上面に設けられた小径側のギヤ部４５ｂに噛合している。第３伝動歯車４５の大径側のギヤ部４５ａは第２伝動歯車４４の小径側のギヤ部４４ｂに噛合し、その大径側のギヤ部４４ａが前述した出力軸に設けられたギヤ部４３に噛合している。 By the way, the fourth transmission gear 46 has, for example, a shaft-like fitting portion 48 that fits into the center hole 47 of the second transmission gear 44, and meshes with the drive gear member 51 at the tip of the shaft-like fitting portion 48. A small-diameter gear portion 46a is formed. The large-diameter gear portion 46 b of the fourth transmission gear 46 meshes with the small-diameter side gear portion 45 b provided on the one side upper surface of the third transmission gear 45. The gear portion 45a on the large diameter side of the third transmission gear 45 meshes with the gear portion 44b on the small diameter side of the second transmission gear 44, and the gear portion 44a on the large diameter side is provided on the output shaft described above. Is engaged.

（７）駆動制御ユニットＹ
次に、本発明に関連する事項を順次説明する。図１及び図８には、本発明のその他の特徴部分が開示されている。その特徴部分の１つとして、錠箱１の配線用取出し口６２と連通するその余の空間５８にカセットケース型の駆動制御ユニットＹが取り外し自在に組み込まれている。この駆動制御ユニットのカセットケース３９は、合成樹脂材で扁平容器状に形成され、錠箱１内に組み込んだ時は、ケース身１ａとケース蓋１ｂの対向内壁面にサンドイッチ状に規制支持される。この駆動制御ユニットＹ内には、少なくとも制御部（マイクロコンピュータ）６１を有するプリント基板６３と、前記制御部６１に制御される横型駆動モータ４１とが配設されている。 (7) Drive control unit Y
Next, items related to the present invention will be sequentially described. 1 and 8 disclose other features of the present invention. As one of the characteristic parts, a cassette case type drive control unit Y is detachably incorporated in the remaining space 58 communicating with the wiring outlet 62 of the lock box 1. The cassette case 39 of this drive control unit is formed in a flat container shape with a synthetic resin material, and when assembled in the lock box 1, it is regulated and supported in a sandwich shape on the opposing inner wall surfaces of the case body 1a and the case lid 1b. . In the drive control unit Y, a printed circuit board 63 having at least a control unit (microcomputer) 61 and a horizontal drive motor 41 controlled by the control unit 61 are disposed.

次に、その他の特徴部分として、デッドボルト２の内端部側２ｂに磁石Ｍ１を設け、一方、この磁石Ｍ１の位置に対応して施錠（位置）信号並びに解錠（位置）信号をそれぞれ検出することができる非接触型のスイッチａ，ｂを、プリント基板６３の下縁部に所定間隔離間して個別的に配設したことである。 Next, as another characteristic part, a magnet M1 is provided on the inner end side 2b of the dead bolt 2, and a lock (position) signal and an unlock (position) signal are detected corresponding to the position of the magnet M1, respectively. That is, the non-contact type switches a and b that can be provided are individually disposed at the lower edge portion of the printed circuit board 63 at a predetermined interval.

図１又は図８を基準にすると、フロント１ｃ近傍の前方のスイッチａは、施錠時、デッドボルト２の先端部側２ａが完全に錠箱１から突出した時、デッドボルト２の磁石Ｍ１と対向して該磁石Ｍ１の磁界を感応する磁界感度型スイッチである。したがって、前方のスイッチａは、施錠信号検知用の第１スイッチである。 1 or 8, the front switch a near the front 1c is opposed to the magnet M1 of the dead bolt 2 when the distal end side 2a of the dead bolt 2 completely protrudes from the lock box 1 at the time of locking. Thus, it is a magnetic field sensitivity type switch that senses the magnetic field of the magnet M1. Therefore, the front switch a is a first switch for detecting a locking signal.

一方、プリント基板６３の下縁部の中央部に設けられた後方のスイッチｂは、解錠時、デッドボルト２が完全に錠箱１内に後退した時、前記磁石Ｍ１と対向して該磁石Ｍ１の磁界を感応する磁界感度型スイッチである。したがって、後方のスイッチｂは、解錠信号検出用の第２スイッチである。 On the other hand, the rear switch b provided at the center of the lower edge of the printed circuit board 63 is opposed to the magnet M1 when the dead bolt 2 is completely retracted into the lock box 1 when unlocked. This is a magnetic field sensitive switch that senses the magnetic field of M1. Accordingly, the rear switch b is a second switch for detecting the unlocking signal.

これらの第１及び第２スイッチａ，ｂは、いわゆる非接触型のスイッチであり、磁石Ｍ１の磁界（Ｓ極）の強弱に対してＯＮ／ＯＦすることから、「ホールＩＣの原理」を利用した磁気式検知手段である。例えば日本国の浜松光電株式会社が低磁界で高感度の機能を有する磁気式検知センサ（商品名ＭＲセンサ，型式ＫＧ１００１−５１など）を製造販売している。本実施例は、「ホールＩＣの原理」を利用した磁気式検知手段ａ，ｂをプリント基板６３の下縁部等に複数個所要間隔離間して配設したものである。 These first and second switches a and b are so-called non-contact type switches and are turned on / off with respect to the strength of the magnetic field (S pole) of the magnet M1, so the “Hall IC principle” is used. Magnetic detection means. For example, Hamamatsu Photoelectric Co., Ltd. in Japan manufactures and sells magnetic detection sensors (trade name MR sensor, model KG1001-51, etc.) having a low magnetic field and high sensitivity function. In the present embodiment, a plurality of magnetic detection means a and b utilizing the “Principle of Hall IC” are arranged on the lower edge of the printed circuit board 63 and the like with a predetermined interval.

ところで、本実施例では、前記第１及び第２スイッチａ，ｂのみならず、この種の磁気式検知手段をプリント基板６３にさらに単数又は複数個適宜に配設している。その一つとして、プリント基板６３の前方の縁部には、閉扉時、戸枠側（例えば受け金具）６６に配設した磁石Ｍ２の位置に対応して閉扉信号を検出する非接触型の第３スイッチｃが配設されている。 By the way, in this embodiment, not only the first and second switches a and b but also this kind of magnetic detecting means is further arranged on the printed board 63 as appropriate. As one of them, the front edge of the printed circuit board 63 is a non-contact type first that detects a closing signal corresponding to the position of the magnet M2 disposed on the door frame side (for example, the receiving metal fitting) 66 when the door is closed. Three switches c are provided.

さらに、プリント基板６３の下縁部の後方には、ダルマ２１の駆動力を駆動モータ４１に対して切断可能な駆動歯車部材５１の係合板５３に設けられた磁石Ｍ３の位置に対応して該駆動歯車部材５１の回転位置信号を検出する非接触型の第４スイッチｄが配設されている。この磁石Ｍ３と第４スイッチｄは、本発明の従属的事項であるが、駆動モータ４１の駆動力によりデッドボルト２を進退動させた時に於いて、クラッチ機能を有する駆動歯車部材５１を常に定位置に戻し、「手動（合鍵又はサムターン）」でダルマ２１をスムースに回すことができるようにするためのものである。 Further, behind the lower edge portion of the printed circuit board 63, the driving force of the dharma 21 can be cut with respect to the drive motor 41 in correspondence with the position of the magnet M3 provided on the engagement plate 53 of the drive gear member 51. A non-contact type fourth switch d for detecting a rotational position signal of the drive gear member 51 is provided. The magnet M3 and the fourth switch d are subordinate matters of the present invention. When the dead bolt 2 is moved forward and backward by the driving force of the driving motor 41, the driving gear member 51 having the clutch function is always fixed. The position is returned to the position so that the dharma 21 can be smoothly turned manually (joint key or thumb turn).

したがって、カセットケース３９内の制御部６１は、第１及び第２スイッチａ，ｂが、施錠信号又は解錠信号をそれぞれ検出した時に、クラッチ手段の駆動歯車部材５１が常に定位置に戻るように駆動モータ４１を制御して、例えば駆動歯車部材５１を時計方向又は反時計方向へと回転させると共に、第４スイッチｄが駆動歯車部材５１の磁石Ｍ３の磁界を検出した時に該駆動モータ４１の回転を停止させる。したがって、第４スイッチｄに対して磁石Ｍ３が対向した時が「駆動歯車部材５１の原点位置」である。なお、磁石Ｍ１ないし磁石Ｍ３については、説明の便宜上、図面では黒塗している。 Therefore, the control unit 61 in the cassette case 39 ensures that the drive gear member 51 of the clutch means always returns to the fixed position when the first and second switches a and b detect the locking signal or the unlocking signal, respectively. The drive motor 41 is controlled to rotate the drive gear member 51 clockwise or counterclockwise, for example, and when the fourth switch d detects the magnetic field of the magnet M3 of the drive gear member 51, the drive motor 41 rotates. Stop. Therefore, the time when the magnet M3 faces the fourth switch d is the “origin position of the drive gear member 51”. The magnets M1 to M3 are black in the drawing for convenience of explanation.

（８）案内部材５の特徴事項
本実施例では、錠箱１内の空間部分４０を有効的に活用するために、デッドボルト２１を案内する案内部材５の後端面５ｂを弧状に形成し、駆動歯車部材５１を十分に配設することができるようにしてある。 (8) Features of the guide member 5 In this embodiment, in order to effectively use the space portion 40 in the lock box 1, the rear end surface 5b of the guide member 5 for guiding the dead bolt 21 is formed in an arc shape, The drive gear member 51 can be sufficiently disposed.

（９）その他の事項−デッドボルト
２は錠箱の案内部又は錠箱内に固定的に設けられた案内部材５の案内部６にスライド自在に案内されるデッドボルトで、このデッドボルト２は、フロント１ｃを基準にして水平方向にスライド自在に進退動（突出，後退）する。図１はデッドボルト２の外端部側２ａがフロント１ｃから突出した施錠時の状態、一方、図９はその外端部側２ａがフロント１ｃ側に後退した解錠時の状態である。本実施例のデッドボルト２の端面形状は、左側面視下向きコ字型に形成されている。施錠時、この下向き凹内からカマデッド３の先端部側３ａが突出する。カマデッド３は、本発明の特定（限定）要件ではないが、デッドボルト２の進退動に伴ってその鉤状先端部側３ａがデッドボルト２の外端部側２ａから突出し、又は外端部側２ａ内へと後退する。 (9) Other matters-Dead bolt 2 is a dead bolt that is slidably guided by a guide portion of a lock box or a guide portion 6 of a guide member 5 fixedly provided in the lock box. Then, it moves forward and backward (projects and retracts) slidably in the horizontal direction with reference to the front 1c. FIG. 1 shows a locked state in which the outer end side 2a of the dead bolt 2 protrudes from the front 1c, while FIG. 9 shows a state in an unlocked state in which the outer end side 2a retracts toward the front 1c. The end face shape of the deadbolt 2 of the present embodiment is formed in a U-shape facing downward on the left side. At the time of locking, the tip side 3a of the cammaded 3 protrudes from the downward recess. The kama dead 3 is not a specific (restricted) requirement of the present invention, but as the dead bolt 2 moves forward and backward, the hooked tip side 3a protrudes from the outer end side 2a of the dead bolt 2, or the outer end side Retreat into 2a.

（１０）錠箱又は案内部材の案内部
錠箱１の案内部又は錠箱１内に固定的に設けられた案内部材５の案内部６は、デッドボルト２をスライド自在に案内する。デッドボルト２を案内する手段５は、ケース身１ａとケース蓋１ｂにそれぞれ対向形成した一対の案内部（ガイド溝、ガイド孔など）６でも良いが、本実施例では各部品の組み合わせの効率化や位置決め容易化を考慮し、錠箱１とは別個の部材を用いている。案内部材５は、金属製又は合成樹脂製の単数の（例えば枠状）支持部材、又は２枚のガイド板である。 (10) Guide part of the lock box or guide member The guide part of the lock box 1 or the guide part 6 of the guide member 5 fixedly provided in the lock box 1 guides the dead bolt 2 in a slidable manner. The means 5 for guiding the dead bolt 2 may be a pair of guide portions (guide grooves, guide holes, etc.) 6 formed to face the case body 1a and the case lid 1b, respectively, but in this embodiment, the combination of the parts is made more efficient. In consideration of ease of positioning, a member separate from the lock box 1 is used. The guide member 5 is a single (for example, frame-shaped) support member made of metal or synthetic resin, or two guide plates.

案内部材５は、例えば横長状の板体に形成され、その先端面５ａはフロント１ｃ側に間隙を有さず（本実施例）、又は若干の間隙を有するように配設される。そして、その後端面５ｂとケース身１ａの後壁４との間には、他の部材（前述した電動モータに関係する駆動歯車部材５１，ダルマと関係する駆動アーム５５等）を配設することができる空間部分４０を設定する。 The guide member 5 is formed in, for example, a horizontally long plate body, and the distal end surface 5a thereof is disposed so as not to have a gap on the front 1c side (this embodiment) or to have a slight gap. Further, other members (such as the drive gear member 51 related to the electric motor and the drive arm 55 related to Dharma) described above may be disposed between the rear end face 5b and the rear wall 4 of the case body 1a. The possible space portion 40 is set.

さて、案内部材５の要部について説明する。６はデッドボルト２を複数個の可動ピンを介して押出す又は引き戻すために案内部材５に形成した単数（本実施例）又は複数個の長孔案内部である。この長孔状案内部６は、本実施例では、水平部分６ａと、この水平部分６ａに連通する段差状曲り部分６ｂから成る。 Now, the main part of the guide member 5 will be described. Reference numeral 6 denotes a single (in this embodiment) or a plurality of long hole guide portions formed in the guide member 5 in order to push out or pull back the dead bolt 2 through a plurality of movable pins. In this embodiment, the long hole-shaped guide portion 6 includes a horizontal portion 6a and a step-shaped bent portion 6b communicating with the horizontal portion 6a.

長孔案内部６は、水平部分６ａに段差状曲り部分６ｂを一連に形成した合計２個の可動ピン用の一つの係合長孔である。この長孔案内部６は、デッドボルト２が進退動する際には、デッドボルト２と一体のデッド用第１可動ピン７及びクランクアーム８と一体のクランク用第２可動ピン９を同時に案内する。 The long hole guide portion 6 is one engagement long hole for a total of two movable pins in which stepped bent portions 6b are formed in series on the horizontal portion 6a. The long hole guide portion 6 simultaneously guides the first movable dead pin 7 integral with the dead bolt 2 and the second movable movable pin 9 with the crank arm 8 when the dead bolt 2 moves forward and backward. .

すなわち、図１で示すように、本実施例のデッドボルト２は、デッドカマ用の可動ピン１０及びデッド用第１可動ピン７をそれぞれ有するが、後者のデッド用第１可動ピン７の両端部はデッドボルト２の両側壁にそれぞれ形成した円形の貫通孔１１から突出し、かつ、案内部材５，５の対応する前記水平部分６ａにそれぞれ係合しているために、デッドボルト２が進退動する際には水平部分６ａに案内されて摺動する。 That is, as shown in FIG. 1, the dead bolt 2 of the present embodiment has a dead pin movable pin 10 and a dead first movable pin 7 respectively, but both ends of the latter dead first movable pin 7 are When the dead bolt 2 moves forward and backward because it protrudes from the circular through-holes 11 formed on both side walls of the dead bolt 2 and engages with the corresponding horizontal portions 6a of the guide members 5 and 5, respectively. The slide is guided by the horizontal portion 6a.

一方、クランクアーム８の一端部に横設された第２可動ピン９も、その一端部８ａと他端部８ｂの中間に相当する部分の両側壁にそれぞれ形成した円形の貫通孔から突出し、かつ、案内部材５の対応する段差状曲り部分６ｂにそれぞれ係合しているために、デッドボルト２が進退動する際には段差状曲り部分６ｂに案内されて摺動する。この場合第２可動ピン９は弧状の軌跡を描く。 On the other hand, the second movable pin 9 provided laterally at one end of the crank arm 8 also protrudes from a circular through hole formed on each side wall of the portion corresponding to the middle between the one end 8a and the other end 8b, and Since the respective stepped bent portions 6b of the guide member 5 are engaged with each other, the dead bolt 2 is guided and slid by the stepped bent portion 6b when moving forward and backward. In this case, the second movable pin 9 draws an arcuate locus.

ところで、前述した第１可動ピン７及び第２可動ピン９は、図１で示す施錠時、案内部材５の水平部分６ａに位置すると共に、後方の第２可動ピン９は、水平部分６ａと段差状曲り部分６ｂの共通面に相当する縦方向支持面１３に入り込んでいる。本実施例の案内部６の段差状曲り部分６ｂは、前記縦方向支持面１３から後端面５ｂに向かって形成されている。したがって、施錠時、デッドボルト２が完全に突出した場合には、フック状の先端部にクランクアーム８の第２可動ピン９が落ち込み、該第２可動ピン９は前記縦方向支持面１３に支持（拘束）される。この時、第２可動ピン９はデッドボルト２の弧状に形成された後端面１４と前記縦方向支持面１３との間に挟まった状態となる。したがって、デッドボルト２は錠箱１内へ後退することが不可となる。 By the way, the first movable pin 7 and the second movable pin 9 described above are positioned on the horizontal portion 6a of the guide member 5 at the time of locking shown in FIG. 1, and the rear second movable pin 9 is stepped from the horizontal portion 6a. The vertical support surface 13 corresponding to the common surface of the curved portion 6b is intruded. The step-shaped bent portion 6b of the guide portion 6 of this embodiment is formed from the longitudinal support surface 13 toward the rear end surface 5b. Therefore, when the dead bolt 2 is completely projected at the time of locking, the second movable pin 9 of the crank arm 8 falls into the hook-shaped tip, and the second movable pin 9 is supported by the longitudinal support surface 13. (Restrained). At this time, the second movable pin 9 is sandwiched between the rear end surface 14 formed in the arc shape of the dead bolt 2 and the longitudinal support surface 13. Therefore, the dead bolt 2 cannot be retracted into the lock box 1.

一方、第１可動ピン７及び第２可動ピン９は、解錠時、デッドボルト２が錠箱１内に完全に後退した場合には、前方に位置する第１可動ピン７は案内部材５の水平部分６ａ或いは段差状曲り部分６ｂの前記縦方向支持面（共通支持面）１３に位置するのに対して、後方の第２可動ピン９は、フック状段差状曲り部分６ｂの後端部にクランクアーム８の第２可動ピン９が入り込み、該第２可動ピン９は後端部の弧状係止面１５に支持（拘束）される。この時、第２可動ピン９は段差状曲り部分６ｂの弧状係止面１５に多少落ち込んだ格好となる。 On the other hand, when the first movable pin 7 and the second movable pin 9 are unlocked, and the dead bolt 2 is completely retracted into the lock box 1, the first movable pin 7 located in front of the guide member 5 The second movable pin 9 on the rear side is located at the rear end of the hook-shaped step-shaped bent portion 6b, while it is located on the vertical support surface (common support surface) 13 of the horizontal portion 6a or the step-shaped bent portion 6b. The second movable pin 9 of the crank arm 8 enters, and the second movable pin 9 is supported (restrained) by the arcuate locking surface 15 at the rear end. At this time, the second movable pin 9 looks slightly depressed on the arcuate locking surface 15 of the step-shaped bent portion 6b.

したがって、デッドボルト２が振動等により容易に突出しない。このように、本実施例の案内部材５の長孔案内部６は、複数個の支持面或いは係止面１３，１５を有し、施錠時及び解錠時の両方に於いて、クランクアーム８の第２可動ピン９を支持（拘束）し、前者の場合には、デッドボルト２が錠箱１内へ後退するのを防止し、一方、後者の場合には、デッドボルト２が錠箱１内から突出するのを防止している。 Therefore, the dead bolt 2 does not easily protrude due to vibration or the like. As described above, the long hole guide portion 6 of the guide member 5 of the present embodiment has a plurality of support surfaces or locking surfaces 13 and 15, and the crank arm 8 during both locking and unlocking. The second movable pin 9 is supported (restrained), and in the former case, the dead bolt 2 is prevented from moving back into the lock box 1, whereas in the latter case, the dead bolt 2 is moved to the lock box 1. Protruding from the inside is prevented.

なお、案内部材５は錠箱１又は錠箱内に固定的に配設された固定部材に適宜に固定される。要は、案内部材５は固定部材であり、デッドボルト２を複数個の可動ピン７，９を介して押出す又は引き戻すため長孔案内部（長孔，長いカイド溝など）６を有していれば良い。 The guide member 5 is appropriately fixed to the lock box 1 or a fixed member fixedly disposed in the lock box. In short, the guide member 5 is a fixed member, and has a long hole guide portion (long hole, long guide groove, etc.) 6 for pushing out or pulling back the dead bolt 2 through the plurality of movable pins 7, 9. Just do it.

（１１）デッドボルト２とカマデッド３
デッドボルト２は「端面下向きコ字状」に形成されている。デッドボルト２は、カマデッド３，クランクアーム８との組み合わせの関係上空洞に形成され、例えば適宜箇所に切欠部を形成している。一方、カマデッド３は鉤状に形成され、前述したデッドカマ用可動ピン１０、カマ長孔及び錠箱１のフロント１ｃ側のカマ軸１６を介して所定量回転可能に設けられている。 (11) Dead Bolt 2 and Kama Dead 3
The dead bolt 2 is formed in an “end face downward U-shape”. The dead bolt 2 is formed in a cavity due to the combination with the kama dead 3 and the crank arm 8, and for example, a notch is formed at an appropriate place. On the other hand, the kama dead 3 is formed in a bowl shape, and is provided so as to be able to rotate by a predetermined amount via the dead kama movable pin 10, the kama long hole, and the kama shaft 16 on the front 1 c side of the lock box 1.

ところで、本実施例のデッドボルト２は、普通一般に使用されているデッドボルトの全長と比較すると相当短い（例えば３分の２程度の長さ）。また、デッドボルト２は、その内端部側２ｂにデッド用第１可動ピン７を横設するための貫通孔１１を有しているものの、従来のようにダルマの半径外方向に延びた作動アームが係脱する前後の傾斜突起（ハ又は逆ハの字型の係合突起や係合切欠溝）等を有していない。さらに、内端部側２ｂの後端面１４は、クランクアーム８の第２可動ピン９にスムースに支持されるように湾曲状に形成されている。 By the way, the dead bolt 2 of the present embodiment is considerably shorter (for example, about two-thirds in length) than the total length of the dead bolt that is generally used. Moreover, although the dead bolt 2 has the through-hole 11 for laterally arranging the 1st movable pin 7 for a dead in the inner end side 2b, it is the operation | movement extended in the radial outer direction of Dharma like before. It does not have slanting protrusions (c or inverted C-shaped engaging protrusions or engaging notch grooves) before and after the arm engages and disengages. Further, the rear end surface 14 of the inner end side 2b is formed in a curved shape so as to be smoothly supported by the second movable pin 9 of the crank arm 8.

（１２）ダルマ２１
図１０を参照にしてダルマ２１を説明する。ダルマ２１は、シリンダ錠又はサムターンの回転操作により所定量回転するように錠箱１の軸受け２２に配設されている。ダルマ２１は、錠箱１の中央部、後壁４寄りの部位等に配設することが可能であるが、本実施例では、一つの用途（例えば電気錠）を考慮して錠箱下部の後壁４寄りの部位に配設されている。 (12) Dharma 21
The dharma 21 will be described with reference to FIG. The dharma 21 is disposed on the bearing 22 of the lock box 1 so as to rotate by a predetermined amount by rotating the cylinder lock or thumb turn. The dharma 21 can be disposed in the central portion of the lock box 1, a portion near the rear wall 4, etc. In this embodiment, in consideration of one application (for example, an electric lock), It is disposed at a position near the rear wall 4.

本実施例のダルマ２１の特徴は、従来のようにデッドの逆ハの字型突起や切欠溝に対する半径外方向の作動アームを有さない反面、クランクアーム８の他端部８ｂを、枢軸１７を介して軸支するための第１連結突起２３を有していることである。やや幅広の第１連結突起２３の先端部には、長孔状軸孔２４が形成されており、該軸孔２４及び枢軸１７を介してクランクアーム８の他端部８ｂがダルマ２１に連結されている。 The dharma 21 of the present embodiment is characterized in that it does not have a working arm in the radially outward direction with respect to a dead inverted-shaped protrusion or a notch groove as in the prior art, but the other end 8b of the crank arm 8 is connected to the pivot 17 It has the 1st connection protrusion 23 for pivotally supporting via. A long hole-shaped shaft hole 24 is formed at the distal end portion of the slightly wider first connection protrusion 23, and the other end portion 8 b of the crank arm 8 is connected to the dharma 21 via the shaft hole 24 and the pivot shaft 17. ing.

ダルマ２１には、その余の連結突起も半径外方向に適宜に形成されている。すなわち、２５は第１連結突起２３に対して指を開いたように連設する第２連結突起で、この第２連結突起２５にはダルマ２１のポジション位置（施錠位置と解錠位置）に対応して所定方向に切り換え付勢する付勢手段３１が連結される。 In Dharma 21, the remaining connecting projections are also appropriately formed in the radially outward direction. That is, reference numeral 25 denotes a second connection protrusion that is connected to the first connection protrusion 23 so that a finger is opened. The second connection protrusion 25 corresponds to the position position (locking position and unlocking position) of the dharma 21. Thus, the biasing means 31 for switching and biasing in a predetermined direction is connected.

ところで、付勢手段３１は、デッドボルト２とダルマ２１の間に配設され、棒状の連結杆３２と、この連結杆３２に巻装された付勢バネ３３とを含んでいる。そして、前記連結杆３２の一端部は連結ピン３４を介してダルマ２１の第２連結突起２５に連結されており、その他端部は錠箱１内に固定された柱状の案内手段３５に貫通状態に支持されている。 By the way, the urging means 31 is disposed between the dead bolt 2 and the dharma 21 and includes a rod-shaped connecting rod 32 and an urging spring 33 wound around the connecting rod 32. One end of the connecting rod 32 is connected to the second connecting projection 25 of the dharma 21 via a connecting pin 34, and the other end is passed through a columnar guide means 35 fixed in the lock box 1. It is supported by.

さらに、２６は第１連結突起２３及び第２連結突起２５に対して反対方向にヒレ状に突設された第３連結突起で、この第３連結突起２６は段差状に形成されている。第３連結突起２６には、駆動アーム５５の一端部が枢着される。 Further, reference numeral 26 denotes a third connection protrusion that protrudes in a fin shape in the opposite direction to the first connection protrusion 23 and the second connection protrusion 25, and the third connection protrusion 26 is formed in a stepped shape. One end of the drive arm 55 is pivotally attached to the third connection protrusion 26.

（１３）クランクアーム８
図１１を参照にしてクランクアーム８を説明する。クランクアーム８の一端部８ａは、空洞状のデッドボルト２のデッド用第１可動ピン７に連結されていると共に、クランクアーム８の中間部分に設けられたクランク用第２可動ピン９は案内部材５の案内部６に係合し、かつ、クランクアーム８の他端部８ｂは、ダルマ２１の半径外方向突起する第１連結突起２３に枢着されている。 (13) Crank arm 8
The crank arm 8 will be described with reference to FIG. One end portion 8 a of the crank arm 8 is connected to the first dead movable pin 7 of the hollow deadbolt 2, and the second movable crank pin 9 provided in the middle portion of the crank arm 8 is a guide member. 5, and the other end portion 8 b of the crank arm 8 is pivotally attached to a first connection protrusion 23 protruding outward in the radial direction of the dharma 21.

本実施例のクランクアーム８は、一対のＬ形状の係合片と、これらの係合片を連結する連結板とを有している。本発明には関係がないが、クランクアーム８の端部には単数又は複数個の係合爪が形成されている。 The crank arm 8 of the present embodiment has a pair of L-shaped engaging pieces and a connecting plate that connects these engaging pieces. Although not related to the present invention, one or more engaging claws are formed at the end of the crank arm 8.

前述したように、１２は一端部８ａと他端部８ｂの中間部分に形成された第２可動ピン９が貫通する円形の貫通孔である。この貫通孔１２を基準にすると、前方に相当する一端部８ａには第１可動ピン７用の貫通孔１８が、一方、角度方向の他端部８ｂには付勢手段３１の連結ピン３４用貫通孔１９がそれぞれ形成されている。 As described above, reference numeral 12 denotes a circular through-hole through which the second movable pin 9 is formed at an intermediate portion between the one end 8a and the other end 8b. If this through hole 12 is used as a reference, a through hole 18 for the first movable pin 7 is provided at one end 8a corresponding to the front, and a connecting pin 34 for the biasing means 31 is provided at the other end 8b in the angular direction. Each through hole 19 is formed.

しかして、クランクアーム８の一端部８ａはデッド用第１可動ピン７を介してデッドボルト２に連結状態で枢着され、一方、その他端部８ｂはダルマ２１の第１連結突起２３に枢軸１７を介して連結状態で枢着されている。そして、クランク用第２可動ピン９は案内部材５の案内部６の水平部分６ａに続く段差状曲り部分６ｂに案内される。本実施例のデッドボルト２はクランクアーム８を介して押し出され、又は引き戻される。 Thus, one end portion 8a of the crank arm 8 is pivotally attached to the dead bolt 2 via the first movable pin 7 for dead, while the other end portion 8b is pivoted to the first connecting projection 23 of the dharma 21. It is pivotally attached in a connected state via. Then, the second crank movable pin 9 is guided to the step-shaped bent portion 6 b following the horizontal portion 6 a of the guide portion 6 of the guide member 5. The dead bolt 2 of this embodiment is pushed out or pulled back through the crank arm 8.

第１実施例に於いて、特に図示しないが、係合板５３の弾性係合変位部５３ａに復帰機能を与えるために復帰バネを切欠部に内装しても良い。 In the first embodiment, although not particularly illustrated, a return spring may be provided in the notch portion in order to give a return function to the elastic engagement displacement portion 53a of the engagement plate 53.

次に、この実施例の欄に於いて、本発明の要部の第２実施例、第３実施例及び第４実施例をそれぞれ説明する。なお、第１実施例と同一の部分には、同一の符号又は同様の符号を付し、重複する説明を省略する。 Next, in the column of this embodiment, a second embodiment, a third embodiment, and a fourth embodiment of the main part of the present invention will be described. In addition, the same code | symbol or the same code | symbol is attached | subjected to the part same as 1st Example, and the overlapping description is abbreviate | omitted.

図１２及び図１３に示す本発明の第２実施例は、要部の係合板５３Ａの変形例を示す。この第２実施例の係合板５３Ａが第１実施例と主に異なる点は、該係合板５３Ａは、駆動歯車５２の凹所５２ａの複数個の被係合部５２ｂ，５２ｂから外れるように内側に変位し得る複数個の弾性係合変位部５３ａ，５３ａを有することである。 The second embodiment of the present invention shown in FIGS. 12 and 13 shows a modification of the main portion of the engaging plate 53A. The engagement plate 53A of the second embodiment is mainly different from the first embodiment in that the engagement plate 53A is arranged so as to be disengaged from the plurality of engaged portions 52b and 52b of the recess 52a of the drive gear 52. A plurality of elastic engagement displacement portions 53a, 53a that can be displaced to each other.

しかして、係合板５３Ａの弾性係合変位部５３ａ，５３ａは、駆動歯車５２を貫通する中心軸５４に関着状態に設けられた環状中心部から切欠部を介して反対方向にそれぞれ延設する左右の係合腕部分である。 Thus, the elastic engagement displacement portions 53a, 53a of the engagement plate 53A extend in opposite directions from the annular central portion provided in a state of being engaged with the central shaft 54 penetrating the drive gear 52 through the notch portion. The left and right engaging arm portions.

第２実施例の係合板５３Ａは、弾性係合変位部５３ａ，５３ａの両端部に駆動アーム５５の係合突起５６が選択的に係合する係止面５３ｃ，５３ｃを有すると共に、前記両端部に駆動歯車５２の凹所５２ａの内周壁に形成した切欠溝状の被係合部５２ｂ，５２ｂにそれぞれ係脱可能な小突起状の係合部５３ｂが形成されている。そして、前記弾性係合変位部５３ａ，５３ａは、やや幅広に形成されており、その一つに錠箱１内の所定位置に設けられた磁気感度スイッチｄと対向可能な磁石Ｍ３が設けられている。このように係合板５３Ａを設計変更しても、図１３で示すように、異常時に於いて、合鍵操作によって駆動アームを介して係合板５３Ａに一定以上のトルクが加わった場合には、該係合板の複数個の弾性係合変位部５３ａ，５３ａは、駆動歯車５２の凹所５２の被係合部５２ｂ，５２ｂから外れるように内側に同時に変位するので、第１実施例と実質的に同一の作用・効果を得ることができる。 The engaging plate 53A of the second embodiment has locking surfaces 53c and 53c that selectively engage the engaging protrusions 56 of the drive arm 55 at both ends of the elastic engaging displacement portions 53a and 53a. In addition, engaging portions 53b each having a small protrusion that can be engaged and disengaged are formed in notched groove-like engaged portions 52b and 52b formed in the inner peripheral wall of the recess 52a of the drive gear 52, respectively. The elastic engagement displacement portions 53a and 53a are formed to be slightly wider, and one of them is provided with a magnet M3 that can face the magnetic sensitivity switch d provided at a predetermined position in the lock box 1. Yes. Even when the design of the engagement plate 53A is changed in this way, as shown in FIG. 13, when a torque exceeding a certain level is applied to the engagement plate 53A via the drive arm in the event of an abnormality, as shown in FIG. Since the plurality of elastic engagement displacement portions 53a and 53a of the plywood are simultaneously displaced inward so as to be disengaged from the engaged portions 52b and 52b of the recess 52 of the drive gear 52, they are substantially the same as in the first embodiment. The operation and effect of can be obtained.

図１４及び図１５に示す本発明の第３実施例は、クラッチ手段としての駆動歯車部材５１Ａを「一つの部品」にしたことである。 The third embodiment of the present invention shown in FIGS. 14 and 15 is that the drive gear member 51A as the clutch means is made “one component”.

すなわち、クラッチ手段は、一側上面の周方向に「第１にがし溝５７Ａ」とヒューズ部分６８を介して該第１にがし溝５７Ａと連通可能な「第２にがし溝５７Ｂ」とを有する駆動歯車部材５１Ａと、正常時には前記第１にがし溝５７Ａに他端部の係合突起５６が係合すると共に、一端部がダルマ２１に枢着された駆動アーム５５とで構成されている。 That is, the clutch means has a “second strip groove 57B” that can communicate with the “first strip groove 57A” and the first strip groove 57A through the fuse portion 68 in the circumferential direction of the upper surface of one side. And a drive arm 55 having one end engaged with the dharma 21 and the other end engaging projection 56 engaged with the first tear groove 57A under normal conditions. Has been.

しかして、図１５で示すように、異常時に於いて、合鍵操作によってダルマ２１と共働する駆動アーム５５を介して前記ヒューズ部分６８に一定以上のトルクが加わった場合には、該ヒューズ部分６８が切れるので、駆動アーム５５の前記係合突起５６が「第２にがし溝５７Ｂ」へと滑りながら移動する。この時、駆動歯車部材５１Ａは停止している。 Thus, as shown in FIG. 15, when a certain torque or more is applied to the fuse portion 68 through the drive arm 55 that cooperates with the dharma 21 by a key-locking operation at the time of abnormality, the fuse portion 68 Therefore, the engagement protrusion 56 of the drive arm 55 moves while sliding into the “second peeling groove 57B”. At this time, the drive gear member 51A is stopped.

なお、本実施例のヒューズ部分６８は、例えば外観上「Ｈ形」の嵌め込み小片であり、駆動歯車５１Ａの第１にがし溝５７Ａと第２にがし溝５７Ｂの境界部分に突出形成した対向状態の係止突片６９，６９に係合するが、もちろん、これに限定するものではない。 The fuse portion 68 of the present embodiment is, for example, an “H-shaped” fitting small piece in appearance, and is formed to project from the boundary portion between the first strip groove 57A and the second strip groove 57B of the drive gear 51A. Although it engages with the locking protrusions 69, 69 in the opposed state, of course, it is not limited to this.

ヒューズ部分６８の係合形態に関しては、任意に設計変更可能であり、また、ヒューズ部分６８を予め駆動歯車部材５１Ａに一体成形しても良い。要は異常時に於いて、合鍵操作によってダルマ２１と共働する駆動アーム５５を介して前記ヒューズ部分６８に一定以上のトルクが加わった場合には、該ヒューズ部分６８が切れて（外れる場合も含む）、駆動アーム５５の前記係合突起５６が「第２にがし溝５７Ｂ」へと滑りながら移動可能であれば良い。 With regard to the engagement form of the fuse portion 68, the design can be arbitrarily changed, and the fuse portion 68 may be integrally formed with the drive gear member 51A in advance. The point is that when an abnormal torque is applied to the fuse portion 68 through the drive arm 55 that cooperates with the dharma 21 by a key operation, the fuse portion 68 is blown (including the case where it is disconnected). It is only necessary that the engagement protrusion 56 of the drive arm 55 can move while sliding into the “second peeling groove 57B”.

図１６乃至図１８に示す本発明の第４実施例は、係合板を捕捉板に設計変更してことである。第１実施例の係合板５３は駆動歯車５２の凹所内に組み込まれているが、この第４実施例の駆動歯車部材５１Ｂは、中心軸５４に遊挿され、かつ、一側上面の周囲に複数個の小突起７１を有する駆動歯車５２Ｂと、同じく前記中心軸５４に遊挿され、かつ、正常時にはこの駆動歯車５２Ｂと一緒になって共働するように該駆動歯車５２Ｂの前記小突起７１に乗っかっている弾発性の捕捉板５３Ｂとから構成されている。 The fourth embodiment of the present invention shown in FIGS. 16 to 18 is obtained by changing the design of the engagement plate to the capture plate. The engagement plate 53 of the first embodiment is incorporated in the recess of the drive gear 52. The drive gear member 51B of the fourth embodiment is loosely inserted into the central shaft 54 and around the upper surface of one side. The drive gear 52B having a plurality of small protrusions 71 and the small protrusion 71 of the drive gear 52B so as to be loosely inserted into the central shaft 54 and to cooperate with the drive gear 52B in a normal state. And a resilient capturing plate 53B on the board.

しかして、前記捕捉板５３Ｂは、軸孔７２の同心円上に形成された周方向の「にがし部分５７」を有している。そして、このにがし部分５７に駆動アーム５５の他端部の係合突起５６が係合している。なお、この実施例では、捕捉板５３Ｂは、中心軸５４に螺合する固定手段７４により、常時駆動歯車５２Ｂの小突起７１に圧接するように押さ付けられている。 Thus, the catch plate 53B has a circumferential “peeling portion 57” formed on a concentric circle of the shaft hole 72. Then, the engagement protrusion 56 at the other end of the drive arm 55 is engaged with the biting portion 57. In this embodiment, the catch plate 53B is always pressed against the small protrusion 71 of the drive gear 52B by a fixing means 74 screwed to the central shaft 54.

したがって、第４実施例のクラッチ手段は、駆動歯車５２Ｂと、正常時にはこの駆動歯車と一緒になって共働するように該駆動歯車に圧接状態に乗っかっていると共に、周方向に「にがし部分５７」を有し、かつ、単独で摩擦回転可能な弾発性の捕捉板５３Ｂと、前記にがし部分５７に他端部の係合突起５６が係合すると共に、一端部がダルマに枢着された駆動アーム５５とで構成されている。 Therefore, the clutch means of the fourth embodiment is in pressure contact with the drive gear 52B so that it cooperates with the drive gear 52B in the normal state. A resilient catch plate 53B having a portion 57 "and capable of frictional rotation alone, and an engagement projection 56 at the other end engaged with the biting portion 57, and one end at a dharma The drive arm 55 is pivotally attached.

上記構成に於いて、異常時、合鍵操作によって駆動アーム５５の係合突起５６を介して捕捉板５３Ｂに一定以上のトルクが加わった場合には、該捕捉板５３Ｂは、停止中の駆動歯車５２Ｂに対して摩擦回転する。したがって、このように設計変更しても、第１実施例と実質的に同一の作用・効果を得ることができる。 In the above-described configuration, when an abnormal torque is applied to the catch plate 53B via the engagement projection 56 of the drive arm 55 due to a key combination operation, the catch plate 53B is stopped when the drive gear 52B is stopped. Friction rotation with respect to. Therefore, even if the design is changed in this way, substantially the same operation and effect as the first embodiment can be obtained.

本発明は、主に錠前や建具の業界で利用される。 The present invention is mainly used in the locksmith and joinery industries.

図１乃至図１１は本発明の最良の実施例を示す各説明図。図１２及び図１３は本発明の第２実施例を示す各説明図。図１４及び図１５は本発明の第３実施例を示す各説明図。図１６乃至図１８は本発明の第４実施例を示す各説明図。
本発明の一実施例を示す概略説明図（電動又は手動による施錠時）。主要部の概略説明図（手動による解錠時）。異常時における駆動歯車の位置を示す概略説明図。異常時、係合板が停止状態の駆動歯車とは別個に解錠位置へと単独回転する場合の概略説明図。駆動歯車部材の分解斜視図。歯車伝達機構の斜視からの概略説明図。歯車伝達機構の概略説明図。制御部、スイッチ等の要部を示す概略説明図。本発明の一実施例を示す概略説明図（電動又は手動による解錠時）。ダルマの説明図。クランクアームの説明図。本発明の要部の第２実施例を示す説明図。異常時、係合板が停止状態の駆動歯車とは別個に解錠位置へと単独回転する場合の概略説明図。本発明の要部の第３実施例を示す説明図。異常時、ヒューズ部分が切れた概略説明図。本発明の要部の第４実施例を示す説明図（分解斜視図）。組み合わせ状態の概略説明図。異常時、捕捉板が単独で摩擦回転している状態を示す概略説明図。 FIG. 1 to FIG. 11 are explanatory views showing the best embodiments of the present invention. 12 and 13 are explanatory views showing a second embodiment of the present invention. 14 and 15 are explanatory views showing a third embodiment of the present invention. 16 to 18 are explanatory views showing a fourth embodiment of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS Schematic explanatory drawing which shows one Example of this invention (at the time of electric or manual locking). Schematic explanatory diagram of the main part (when unlocking manually). Schematic explanatory drawing which shows the position of the drive gear at the time of abnormality. The schematic explanatory drawing in the case of rotating independently to the unlocking position separately from the drive gear in a stopped state at the time of abnormality. The disassembled perspective view of a drive gear member. The schematic explanatory drawing from the perspective of a gear transmission mechanism. Schematic explanatory drawing of a gear transmission mechanism. Schematic explanatory drawing which shows principal parts, such as a control part and a switch. BRIEF DESCRIPTION OF THE DRAWINGS Schematic explanatory drawing which shows one Example of this invention (at the time of electric or manual unlocking). Illustration of Dharma. Explanatory drawing of a crank arm. Explanatory drawing which shows 2nd Example of the principal part of this invention. The schematic explanatory drawing in the case of rotating independently to the unlocking position separately from the drive gear in a stopped state at the time of abnormality. Explanatory drawing which shows 3rd Example of the principal part of this invention. The schematic explanatory drawing which the fuse part cut out at the time of abnormality. Explanatory drawing (decomposition perspective view) which shows 4th Example of the principal part of this invention. The schematic explanatory drawing of a combination state. The schematic explanatory drawing which shows the state which the capture board is carrying out friction rotation independently at the time of abnormality.

Explanation of symbols

５１，５１Ａ，５１Ｂ…駆動歯車部材、５２，５２Ｂ…駆動歯車、５２ａ…凹所、５２ｂ…被係合部、５３，５３Ａ…係合板、５３ａ…弾性係合変位部、５３ｂ…係合部、５３ｃ…係止面、５４…中心軸、５５…駆動アーム、５６…係合突起、５７…にがし溝、６８…ヒューズ部分、５７Ａ…第１にがし溝、５７Ｂ…第２にがし溝、６９…係止突片、７１…小突起、５３Ｂ…捕捉板、７２…軸孔、７４…固定手段、ｄ…第４スイッチ（原点位置信号）、Ｍ３…磁石（駆動場車部材）、Ｙ…駆動制御ユニット、５８…その余の空間、６１…制御部、６２…配線用取出し口、６３…プリント基板、４０…空間部分、４１…駆動モータ、４２…歯車伝達機構、５９…下部空間、６４…接続部分、６５…外部配線接続部分、６６…受け金具、ａ…第１スイッチ（施錠位置信号）、ｂ…第２スイッチ（解錠位置信号）、ｃ…第３スイッチ（閉扉信号）、ｄ…第４スイッチ（原点位置信号）、Ｍ１…磁石（デッドボルト）、Ｍ２…磁石（戸枠側）、Ｍ３…磁石（駆動場車）、３９…カセットケース、１…錠箱、２…デッドボルト、３…カマデッド、４…後壁、５５ａ…案内部材、６…案内部、６ａ…水平部分、６ｂ…段差状曲り部分、７…第１可動ピン、８…クランクアーム、８ａ…一端部、８ｂ…他端部、９…第２可動ピン、１０…デッドカマ用可動ピン、１１，１２，１８，１９…貫通孔、１３…縦方向支持面、１４…後端面、１５…弧状係止面、１６…カマ軸、２１…ダルマ、２２…軸受け、２３…第１連結突起、２４…軸孔、２５…第２連結突起、２６…第３連結突起、３１…付勢手段。 51, 51A, 51B ... Drive gear member, 52, 52B ... Drive gear, 52a ... Recess, 52b ... Engagement part, 53, 53A ... Engagement plate, 53a ... Elastic engagement displacement part, 53b ... Engagement part, 53c ... Locking surface, 54 ... Center axis, 55 ... Drive arm, 56 ... Engagement projection, 57 ... Strip groove, 68 ... Fuse portion, 57A ... First strip groove, 57B ... Second strip Groove, 69 ... locking protrusion, 71 ... small protrusion, 53B ... capture plate, 72 ... shaft hole, 74 ... fixing means, d ... fourth switch (origin position signal), M3 ... magnet (drive field vehicle member), Y ... drive control unit, 58 ... extra space, 61 ... control unit, 62 ... wiring outlet, 63 ... printed circuit board, 40 ... space portion, 41 ... drive motor, 42 ... gear transmission mechanism, 59 ... lower space , 64 ... connection part, 65 ... external wiring connection part, 66 ... receiving bracket, a ... first Switch (locking position signal), b ... second switch (unlocking position signal), c ... third switch (door closing signal), d ... fourth switch (origin position signal), M1 ... magnet (dead bolt), M2 ... Magnet (door frame side), M3 ... Magnet (drive field vehicle), 39 ... Cassette case, 1 ... Lock box, 2 ... Dead bolt, 3 ... Cama dead, 4 ... Rear wall, 55a ... Guide member, 6 ... Guide part, 6a ... horizontal portion, 6b ... stepped bent portion, 7 ... first movable pin, 8 ... crank arm, 8a ... one end, 8b ... other end, 9 ... second movable pin, 10 ... dead pin movable pin, 11 , 12, 18, 19 ... through holes, 13 ... vertical support surfaces, 14 ... rear end surfaces, 15 ... arc-shaped locking surfaces, 16 ... come shafts, 21 ... dharma, 22 ... bearings, 23 ... first connecting projections, 24 ... Shaft hole, 25 ... Second connection protrusion, 26 ... Third connection protrusion, 31 ... Biasing means

Claims

The clutch means is interposed between the gear transmission means and the dharma, and forms a drive gear and a “burst portion” for guiding the engagement protrusion of the drive arm in the recess of the drive gear. And a non-circular engaging plate that cooperates with the driving arm and the driving gear in the normal state, while in an abnormal state, the engaging plate is inserted into the engaging plate through the driving arm by a keying operation. The clutch mechanism for an electric lock, characterized in that the engagement plate has an elastic engagement displacement portion that can be displaced inward so as to be disengaged from the engaged portion of the recess when a torque exceeding a certain level is applied. .

2. The electric lock clutch according to claim 1, wherein the engaging plate has a locking surface to which the engaging projection of the driving arm is selectively engaged at both ends forming the “breaking portion”. mechanism.

The elastic engagement displacement portion of the engagement plate according to claim 1 or 2, wherein the elastic engagement displacement portion of the engagement plate is an arcuate portion having a narrow width in the circumferential direction continuously provided at an end portion of the semicircular portion. A clutch mechanism for an electric lock, characterized in that a small protrusion-like engaging portion is formed on a notch groove-like engaged portion formed on an inner peripheral wall of a recess of a drive gear.

2. The clutch mechanism for an electric lock according to claim 1, wherein the engagement plate includes a magnet that can be opposed to a magnetic sensitivity switch provided at a predetermined position in the lock box.

The clutch means is interposed between the gear transmission means and the dharma, and forms a drive gear and a “burst portion” for guiding the engagement protrusion of the drive arm in the recess of the drive gear. And a non-circular engaging plate that cooperates with the driving arm and the driving gear in the normal state, while in an abnormal state, the engaging plate is inserted into the engaging plate through the driving arm by a keying operation. The electric lock having a plurality of elastic engagement displacement portions that can be displaced inward so that the engagement plate is disengaged from the engaged portion of the recess when a torque exceeding a certain level is applied. Clutch mechanism.

6. The elastic engagement displacement portion of the engagement plate according to claim 5, wherein the elastic engagement displacement portion of each of the engagement plates extends in the opposite direction from the annular central portion provided in a state of being attached to the central shaft passing through the drive gear through the notch portion. A clutch mechanism for an electric lock, wherein the clutch mechanism is an engaging arm portion.

6. The engaging plate according to claim 5, wherein the engaging plate has a locking surface for selectively engaging the engaging projection of the driving arm at both ends of the elastic engaging displacement portion, and a recess of the driving gear at the both ends. A clutch mechanism for an electric lock, characterized in that a small protrusion-like engaging portion is formed on a notched groove-like engaged portion formed on an inner peripheral wall.

6. The elastic engagement displacement portion according to claim 5, wherein the elastic engagement displacement portion is formed to be slightly wider, and one of the elastic engagement displacement portions includes a magnet that can be opposed to a magnetic sensitivity switch provided at a predetermined position in the lock box. An electric lock clutch mechanism.

The clutch means is interposed between the gear transmission means and the dharma, and can communicate with the first tear groove through a “first tear groove” and a fuse portion in the circumferential direction of the upper surface of one side. A drive gear member having a “second tear groove” and a drive arm having an engagement protrusion on the other end engaged with the first tear groove and having one end pivotally attached to the dharma in a normal state On the other hand, when a torque exceeding a certain level is applied to the fuse part through a driving arm that cooperates with the dharma by a key operation in the event of an abnormality, the fuse part is blown or disconnected. A clutch mechanism for an electric lock, wherein the engagement protrusion of the drive arm moves while sliding into a "second tear groove".

The clutch means is interposed between the gear transmission means and the dharma, and is in pressure contact with the drive gear so as to cooperate with the drive gear in normal operation together with the drive gear. A resilient catching plate having a “burning portion” in the circumferential direction and capable of frictional rotation alone, and an engaging projection on the other end engaged with the peeling portion, and one end The part is composed of a drive arm pivotally attached to the dharma.On the other hand, in the event of an abnormality, when a certain amount of torque is applied to the capture plate via the drive arm by a key operation, the capture plate is A clutch mechanism of an electric lock characterized by frictionally rotating with respect to a drive gear.