JP2023163315A

JP2023163315A - electric latch lock

Info

Publication number: JP2023163315A
Application number: JP2022074145A
Authority: JP
Inventors: 浩一郎塙; Koichiro Hanawa; 理志田村; Satoshi Tamura
Original assignee: Miwa Lock KK; Miwa Lock Co Ltd
Current assignee: Miwa Lock KK; Miwa Lock Co Ltd
Priority date: 2022-04-28
Filing date: 2022-04-28
Publication date: 2023-11-10

Abstract

To change a locked state of a reversal latch to a released state when closing a door by using a cam mechanism including a cam gear and a slider movable in a horizontal direction in a reversal latch type electric lock.SOLUTION: An electric latch lock comprises: the reversal latch having a tip part that protrudes from a front of a lock box; a reversal stopping member including a locking piece that stops reversal of the reversal latch; an electric motor whose start-up, rotation direction, and stopping is controlled by a control part; power transmission means including a gear that transmits a driving force of the electric motor; a cam gear linked with the power transmission means; a power conversion mechanism composed of an eccentric cam groove formed in the cam gear and an engaging pin engaging with the eccentric cam groove; and a slider in which a rotary motion of the cam gear becomes a linear motion. When the lock is unlocked and the electric motor is started, the slider advances to the reversal latch side via the power transmission means and the power conversion mechanism and releases a stopped state of the locking piece to the reversal latch.SELECTED DRAWING: Figure 1

Description

本発明は電動ラッチ錠に関し、特に、水平方向に回転する開扉の自由端部に取り付けられる電動ラッチ錠に関する。 The present invention relates to a power latch lock, and more particularly to a power latch lock that is attached to the free end of a horizontally rotating opening door.

特許文献１の反転ラッチ式電気錠Ａの解決手段は、反転と後退が可能なようにラッチケース１１内に設けられた反転ラッチ１０と、この反転ラッチ１０の反転及び後退を阻止するロック部２０と、ロック部２０による反転ラッチ１０のロックを解除して保持するロック解除・保持部３０と、カム素子４１ａによる回転をロック部２０の移動に変換するカム機構を含む電気駆動部４０を備えている。そして、上記ラッチケース１１内にラッチの後退による移動を伝達する伝達ロッド１５を設け、入力信号により電気駆動部４０を駆動してカム素子４１ａの回転で反転ラッチ１０の設定状態をロック解除状態とし、扉の開閉動作による反転ラッチ１０の後退動を、上記伝達ロッド１５を介してロック解除・保持部３０に伝達してロック部２０をロック状態に設定するように形成している。 The solution of the reversing latch type electric lock A of Patent Document 1 is a reversing latch 10 provided in a latch case 11 so as to be able to be reversed and retreated, and a lock portion 20 that prevents the reversing latch 10 from being reversed and retreated. , a lock release/holding section 30 that unlocks and holds the reversing latch 10 by the lock section 20, and an electric drive section 40 including a cam mechanism that converts rotation by a cam element 41a into movement of the lock section 20. There is. A transmission rod 15 is provided in the latch case 11 to transmit the movement of the latch when the latch retreats, and an input signal drives the electric drive unit 40 to change the set state of the reversing latch 10 to the unlocked state by rotation of the cam element 41a. , the backward movement of the reversing latch 10 due to the opening/closing operation of the door is transmitted to the lock release/holding section 30 via the transmission rod 15 to set the lock section 20 in the locked state.

上記構成に関して、明細書の段落００２７～段落００３１には、一部省略すると、概ね次のような説明がある。「段落００２７… 電気駆動部４０は、カム部材４１と、このカム部材４１の回転をロック部２０の移動に変換するカム機構と、このカム機構を駆動する電動モータ４２ｍの駆動部４２とから成る。………上記電動モータ４２ｍとマイクロスイッチ４４には、図４に示すように、別途に設けられている電源制御部５０の電池５１から電源が供給され、接続コードにより送信信号が送受信される旨。」また、「段落００２８…マイクロスイッチ４４にはスイッチのオン、オフの信号を入力するための作動片４５が取り付けられており、この作動片４５に対してカム機構のカム素子４１ａの１回転ごとの当りにより作動信号を発生するように設定されている。…図４に示すように、上記電気駆動部４０に対してその動作を制御する制御回路５２と電池５１を含む電源制御部５０が接続されている。…電源制御部５０は、信号送信部５３からの制御信号の入力によって制御される。信号送信部５３の送信形式は、…テンキー等の有線方式、又は遠隔位置からの操作可能な無線方式（非接触）のいずれのものを用いてもよい旨。」また、「段落００３０…反転ラッチ式電気錠Ａは、ホテルの客室の出入り口の扉に設置されたオートロック錠のように、開閉ドアーに取り付けられて利用される。この反転ラッチ式電気錠は、通常はロック状態に保持されているが、入室時に室外から解錠信号を送信してロックを解除し、開閉ドアーを開いて入室した後は施錠されても良いような用途に使用される旨。」さらに、「段落００３１… ロック状態を解除するには、信号送信部５３からロックを解除するための入力信号を送信し、その信号で電源制御部５０から駆動信号を送信して電源を電池５１から電気駆動部４０の電動モータ４２ｍに供給する。そして、電気駆動部４０の電動モータ４２ｍの回転により、ロック部２０に設けた係合端子２４を反転ラッチ１０に係合したロック状態からカム機構によるカム素子４１ａの１回転で離反させ（押し下げ）て、反転ラッチ１０の設定状態をロック解除状態に駆動する。（符号は特許文献１のもの）」。 Regarding the above configuration, paragraphs 0027 to 0031 of the specification generally include the following explanation, with some parts omitted. "Paragraph 0027... The electric drive section 40 includes a cam member 41, a cam mechanism that converts the rotation of the cam member 41 into movement of the lock section 20, and a drive section 42 of an electric motor 42m that drives this cam mechanism. As shown in FIG. 4, power is supplied to the electric motor 42m and the microswitch 44 from a battery 51 of a separately provided power supply control unit 50, and transmission signals are transmitted and received using a connection cord. "Paragraph 0028...The microswitch 44 is attached with an actuation piece 45 for inputting a switch on/off signal, and one of the cam elements 41a of the cam mechanism is connected to the actuation piece 45. It is set to generate an actuation signal by each rotation. As shown in FIG. 4, a power supply control section 50 includes a control circuit 52 for controlling the operation of the electric drive section 40 and a battery 51. ...The power supply control section 50 is controlled by the input of a control signal from the signal transmission section 53.The transmission format of the signal transmission section 53 is...a wired method such as a numeric keypad, or operation from a remote location. Any available wireless method (non-contact) may be used." In addition, "Paragraph 0030...The inverted latch type electric lock A is similar to the automatic lock lock installed on the entrance door of hotel rooms. This reversible latch type electric lock is normally kept in the locked state, but when entering the room, it sends an unlock signal from outside to release the lock and lock the door. It is used for a purpose that may be locked after opening and entering the room.''Furthermore, ``Paragraph 0031... To release the locked state, the signal transmitter 53 transmits an input signal to release the lock.'' Then, in response to the signal, a drive signal is transmitted from the power supply control section 50, and power is supplied from the battery 51 to the electric motor 42m of the electric drive section 40. Then, due to the rotation of the electric motor 42m of the electric drive section 40, the lock section 20 The engagement terminal 24 provided at the reversing latch 10 is separated from the locked state engaged with the reversing latch 10 (pushing down) by one rotation of the cam element 41a by the cam mechanism, and the set state of the reversing latch 10 is driven to the unlocked state. ( (The code is from Patent Document 1).

本願発明の構成要件との関係で、上記構成について付言する。上記反転ラッチ式電気錠Ａは、ソレノイドではなく、駆動モータ４２の駆動力により出力軸が回転すると、前記出力軸に一体的に取付けられ、かつ筒状ボス部４１から半径外方向におにぎり形状に突出するカム素子４１ａが回転する。前記カム素子４１ａが回転すると、略アングル状に形成されたロック部材２１が錠箱の底壁内面と該ロック部材２１の水平状バネ端支持部（ばね受け）２５の間に配設したばね２６のバネ力に抗して下降し、反転ラッチ１０に対する拘束（係合）を解く。 An additional comment will be made regarding the above configuration in relation to the constituent elements of the present invention. The reversible latch type electric lock A is not a solenoid, but is integrally attached to the output shaft when the output shaft is rotated by the driving force of the drive motor 42, and is shaped like a rice ball radially outward from the cylindrical boss portion 41. The protruding cam element 41a rotates. When the cam element 41a rotates, the locking member 21 formed in a substantially angular shape moves against the spring 26 disposed between the inner surface of the bottom wall of the lockbox and the horizontal spring end support portion (spring receiver) 25 of the locking member 21. It descends against the spring force of and releases the restraint (engagement) with the reversing latch 10.

すなわち、例えばリモコンの遠隔操作により、解錠用の識別情報が電源制御部５０の制御回路５２に入り、その識別情報が正しければ、電源制御部５０の制御信号により、電気駆動部４０としての電動モータが起動し、これにより出力軸と一体のカム素子４１ａの回転し、これと連係して略アングル状のロック部材２１が下降して反転ラッチ１０の設定状態をロック解除状態とする。 That is, for example, identification information for unlocking is entered into the control circuit 52 of the power supply control unit 50 by remote control of a remote control, and if the identification information is correct, the electric drive unit 40 is activated by a control signal from the power supply control unit 50. The motor is started, thereby rotating the cam element 41a integrated with the output shaft, and in conjunction with this, the substantially angular locking member 21 is lowered to change the set state of the reversing latch 10 to the unlocked state.

したがって、特許文献１に記載の反転ラッチ式電気錠Ａは、簡素な構成でもって反転ラッチ１０の設定状態をロック解除状態とすることができる。しかしながら、（ａ）電動モータの駆動力を伝達する手段が、筒状ボス部４１から半径外方向におにぎり形状に突出するカム素子４１ａを採用しているために、これと連係して略アングル状のロック部材２１の下方方向への変位量を稼ぐためには、前記カム素子４１ａを大きく形成する必要がある点、（ｂ）前記変位量を大きく稼いだ場合、それに伴い復帰バネ２６のバネ力を大きくする必要があり、そのために、ロック部材２１を前記復帰バネ２６のバネ力に抗して大きく下降させた場合に於いて、反転ラッチ１０のロック解除状態を保持するために、ロック部材２１の係合爪２３と係合可能なロック解除・保持部材（係合凹所３５を有する係合片、その保持ばね３３等）を設ける必要がある点、（ｃ）前記ロック解除・保持部材をロック部材２１の係合爪２３から解放するために、反転ラッチ１０の後端部に設けられたヘッド部（反転ラッチ用バネ受け）１８に水平方向の伝達ロッドを設ける必要がある点、（ｄ）さらに、カム素子４１ａと連係する略アングル状のロック部材２１を用いているために、各部材の配設位置を考慮すると、例えば鋏み揺動可能な上下一対のロッキングバーを容易に採用することができない点等、色々と工夫をする必要があった。（ｅ）さらに、特許文献１には、マイクロスイッチ４４をＯＮ・ＯＦＦする作用片４５が取付けられているが、電動モータに対して回転力を弱めための検出器、ブレーキレバー等が記載され・示唆されていない。 Therefore, the reversing latch type electric lock A described in Patent Document 1 can set the reversing latch 10 in the unlocked state with a simple configuration. However, (a) since the means for transmitting the driving force of the electric motor employs a cam element 41a that protrudes radially outward from the cylindrical boss part 41 in a rice ball shape, the cam element 41a has a substantially angular shape in conjunction with the cam element 41a. In order to increase the amount of downward displacement of the locking member 21, the cam element 41a needs to be made large; (b) when the amount of displacement is increased, the spring force of the return spring 26 increases accordingly; Therefore, in order to maintain the unlocked state of the reversing latch 10 when the lock member 21 is significantly lowered against the spring force of the return spring 26, the lock member 21 must be made larger. (c) It is necessary to provide an unlocking/retaining member (an engaging piece having an engaging recess 35, its retaining spring 33, etc.) that can be engaged with the engaging claw 23 of In order to release the locking member 21 from the engagement pawl 23, it is necessary to provide a horizontal transmission rod in the head portion (reversing latch spring receiver) 18 provided at the rear end of the reversing latch 10; ) Furthermore, since the substantially angular locking member 21 that is linked to the cam element 41a is used, considering the arrangement position of each member, it is easy to use, for example, a pair of upper and lower locking bars that can be scissor-swung. We had to come up with various ideas to address the issues that were not possible. (e) Further, in Patent Document 1, an operating piece 45 that turns the microswitch 44 ON/OFF is attached, but a detector, a brake lever, etc. for weakening the rotational force of the electric motor are also described. Not suggested.

なお、特許文献２には、錠箱内に鋏み揺動可能な上下一対のロッキングバーを設けたラッチ錠が記載されているが、前記ロッキングバーの反転ラッチの阻止（係止）解除は「電動モータ」の駆動力を用いるものではなく、プッシュ・プル式の操作ハンドルの操作力によるものである。 Note that Patent Document 2 describes a latch lock in which a pair of upper and lower locking bars that can be pivoted by scissors are provided in the lock box, but the blocking (locking) release of the reversal latch of the locking bar is performed by "electrically operated" It does not use the driving force of a motor, but uses the operating force of a push-pull operating handle.

特開２００８－１７９９９７号公報Japanese Patent Application Publication No. 2008-179997 特許第５１５０１３４号公報Patent No. 5150134

本発明の主たる目的は、特許文献１の問題点に鑑み、反転ラッチ式電気錠にカムギアを含むカム機構及び水平方向に移動するスライダーを用いることにより、閉扉時、反転ラッチの施錠状態を解除状態にすること。第２の目的は、支軸に揺動可能に設けられたロッキングピース（望ましくは上下一組のロッキングピース）を容易に採用することができること。第３の目的は、特許文献１と同様に、建物の玄関扉、ホテルの客室の出入り口の扉等に設置されたオートロック錠のように、扉を自動的に開閉する場合に適合する電気錠であること。その他の目的（省電力化のために錠前の施錠状態を検知すること、電動モータの完全停止前にブレーキをかけること等）は、従属項によって特定される。 In view of the problem of Patent Document 1, the main object of the present invention is to use a cam mechanism including a cam gear and a slider that moves in the horizontal direction in a reversing latch type electric lock, so that the locked state of the reversing latch can be changed to the unlocked state when the door is closed. to do. The second purpose is to easily employ a locking piece (preferably a pair of upper and lower locking pieces) that is swingably provided on the support shaft. The third purpose is to create an electric lock that is suitable for automatically opening and closing doors, such as auto-lock locks installed on entrance doors of buildings, entrance doors of hotel rooms, etc., as in Patent Document 1. To be. Other purposes (detecting the locked state of a lock for power saving, applying the brake before the electric motor comes to a complete stop, etc.) are specified by dependent claims.

本発明の電動ラッチ錠は、錠箱のフロントから先端部が突出する反転ラッチと、この反転ラッチの反転を阻止するロッキングピースを含む反転阻止部材と、制御部によって起動、回転方向及び停止が制御される電動モータと、この電動モータの駆動力を伝達する歯車を含む動力伝達手段と、この動力伝達手段に連動するカムギアと、このカムギアに形成された偏心カム溝及び該偏心カム溝に係合する係合ピンからなる動力変換機構と、前記カムギアの回転運動が直線運動となるスライダーとを備え、解錠時、前記電動モータが起動すると、前記動力伝達手段及び動力変換機構を介して前記スライダーが前記反転ラッチ側に前進して前記反転ラッチに対するロッキングピースの阻止状態を解くことを特徴とする。 The electric latch lock of the present invention includes a reversing latch whose tip protrudes from the front of the lock box, a reversing prevention member including a locking piece that prevents the reversing latch from reversing, and a control unit that controls starting, rotation direction, and stopping. an electric motor, a power transmission means including a gear that transmits the driving force of the electric motor, a cam gear interlocked with the power transmission means, an eccentric cam groove formed in the cam gear, and an eccentric cam groove that engages with the eccentric cam groove. and a slider in which the rotational movement of the cam gear becomes a linear movement, and when the electric motor starts when the lock is unlocked, the slider The locking piece moves forward toward the reversing latch to release the blocking state of the locking piece against the reversing latch.

上記構成に於いて、カムギアの偏心カム溝は、該カムギアの中心軸筒部の外周面の一部からアンモナイトの外観形状のように周方向に次第に膨らんだ弧状突起部分に沿って形成されており、解錠時、カムギアが中心軸を基準にして一方向に回転すると、前記係合ピンは前記弧状突起部分に沿って前記中心軸筒部から次第に離れて行くことを特徴とする。また反転阻止部材は、少なくとも一つのロッキングピースと、このロッキングピースを回転自在に軸支する固定軸と、この固定軸に設けられ、一端部が錠箱に内壁面に圧接し、一方、他端部が前記ロッキングピースのバネ支持部に支持された戻しバネとから成ることを特徴とする。またスライダーは、少なくとも幅広い板状部分と、この幅広い板状部分の先端部の略中央部に形成された押圧部と、前記幅広い板状部分に形成された係合部とを有し、解錠時、前記押圧部が前記ロッキングピースの軸支部分から略垂直方向に延びるアーム部を直接又は間接的に押し付け、これにより、前記ロッキングピースの軸支部分から水平方向に延びる先端係合部が、前記反転ラッチの係合受け部から離れることを特徴とする。さらに、前記錠箱内に、錠本体の施錠状態及び／又は解錠状態を検出する単数又は複数のスイッチを配設し、前記制御部は、前記スイッチが検知した施錠信号又は解錠信号を取得した後、前記電動モータに供給する電源をＯＦＦにすることを特徴とする。 In the above configuration, the eccentric cam groove of the cam gear is formed along an arcuate protrusion that gradually swells in the circumferential direction from a part of the outer circumferential surface of the central cylindrical portion of the cam gear, resembling the appearance shape of an ammonite. When the lock is unlocked, when the cam gear rotates in one direction with respect to the central shaft, the engagement pin gradually moves away from the central shaft cylinder portion along the arcuate protrusion. The reversal prevention member includes at least one locking piece, a fixed shaft that rotatably supports the locking piece, and is provided on the fixed shaft, one end of which is in pressure contact with the inner wall surface of the lock box, and the other end of the reversal prevention member. and a return spring supported by the spring support part of the locking piece. Further, the slider has at least a wide plate-like portion, a pressing portion formed approximately in the center of the tip of the wide plate-like portion, and an engaging portion formed on the wide plate-like portion, and the slider has an unlocking portion. At this time, the pressing portion directly or indirectly presses the arm portion extending in a substantially vertical direction from the shaft portion of the locking piece, whereby the tip engaging portion extending horizontally from the shaft portion of the locking piece It is characterized by being separated from the engagement receiving part of the latch. Furthermore, one or more switches for detecting a locked state and/or an unlocked state of the lock body are arranged in the lock box, and the control unit acquires a locking signal or an unlocking signal detected by the switch. After that, the electric power supplied to the electric motor is turned off.

好ましい実施形態では、前記錠箱内に、錠本体の施錠状態を検出する第１スイッチ２１と、錠本体の解錠状態を検出する第２スイッチ２２と、電動モータ２８を制動するためのスイッチ２３を配設し、前記制御部は、前記第１スイッチが検知した施錠信号を取得した後、電源をＯＦＦにすることを特徴とする。加えて、前記カムギアに形成した溝の傾斜面或いは段差面を利用して前記第１スイッチ２１及び第２スイッチ２２を選択的にＯＮ・ＯＦＦする施・解錠検知レバーを揺動自在に軸支すると共に、さらに前記施・解錠検知レバーに連系し、前記スイッチ２３を選択的にＯＮ・ＯＦＦするブレーキ検知レバーを揺動自在に軸支し、前記制御部は、前記スイッチが検知した制動用信号を取得した後、前記電動モータにブレーキをかけて該電動モータの回転力を弱めることを特徴とする。 In a preferred embodiment, the lock box includes a first switch 21 for detecting the locked state of the lock body, a second switch 22 for detecting the unlocked state of the lock body, and a switch 23 for braking the electric motor 28. The control unit is characterized in that the control unit turns off the power after acquiring the locking signal detected by the first switch. In addition, a locking/unlocking detection lever for selectively turning on/off the first switch 21 and the second switch 22 is pivotably supported by using an inclined surface or a stepped surface of the groove formed in the cam gear. At the same time, a brake detection lever that is connected to the locking/unlocking detection lever and selectively turns ON/OFF the switch 23 is rotatably supported, and the control section controls the braking detected by the switch. The present invention is characterized in that after acquiring the signal, a brake is applied to the electric motor to weaken the rotational force of the electric motor.

特許文献１の問題点に鑑み、反転ラッチ式電気錠にカムギアを含むカム機構及び水平方向に移動するスライダーを用いることにより、閉扉時、反転ラッチの施錠状態を解除状態にすることができる。また支軸に揺動可能に設けられたロッキングピース（望ましくは上下一組のロッキングピース）を容易に採用することができる。さらに、特許文献１と同様に、建物の玄関扉、ホテルの客室の出入り口の扉等に設置されたオートロック錠のように、扉を自動的に開閉する場合に適合する。なお、実施形態如何によっては、省電力化のために錠前の施錠状態を検知すること、カムギアがオーバーランしないように、例えば電動モータの完全停止前にブレーキをかけることができる等の効果がある。 In view of the problem in Patent Document 1, by using a cam mechanism including a cam gear and a slider that moves in the horizontal direction in the reversing latch type electric lock, the locked state of the reversing latch can be changed to the unlocked state when the door is closed. Further, a locking piece (preferably a set of upper and lower locking pieces) that is swingably provided on the support shaft can be easily employed. Further, similar to Patent Document 1, the present invention is suitable for automatically opening and closing doors, such as auto-lock locks installed on entrance doors of buildings, entrance doors of hotel guest rooms, and the like. In addition, depending on the embodiment, it is possible to detect the locked state of a lock for power saving, and to prevent the cam gear from overrunning, for example, it is possible to apply the brake before the electric motor completely stops. .

図１乃至図１２は本発明の第１実施形態を示す各説明図。
錠箱に設けられた主な構成部材を示した概略説明図（施錠状態）。図１に於いて、中心線Ｏを基準にして錠箱をひっくり返した場合の概略説明図（施錠状態）。要部（複数個のスイッチを含む信号入力部、制御部、電動モータ、動力伝達手段、カムギア）の説明図。要部（動力伝達手段の最終歯車、カムギア、コロを有する係合ピン）の説明図。カムギアの斜視図。要部（電動モータ、取付けベース板、カムギア、カムギアの中心軸）を錠箱の後端部側から見た概略断面説明図。カムギアの偏心カム溝と係合する係合ピンとスライダーとの係合構造を示す概略断面説明図。反転阻止部材（軸、ロッキングビース、ロッキングバネ）の分解説明図（ロッキングビースは一方のみを示す）。スライダーの前進により、反転ラッチに対するロッキングピースの阻止状態が解かれた説明図。信号入力部としての、施・解錠検知レバー及びブレーキ検知レバーの説明図。カムギアが回転した解錠が完了したときの施・解錠検知レバー及びブレーキ検知レバーの姿勢を示す説明図。図１１に於いて、施・解錠検知レバーがカムギアの偏心カム溝よりも外側に形成された弧状溝に形成した傾斜面或いは段差部に誘導された説明図。 1 to 12 are explanatory diagrams showing a first embodiment of the present invention.
A schematic explanatory diagram showing the main structural members provided in the lock box (in a locked state). A schematic explanatory diagram (locked state) when the lock box in FIG. 1 is turned upside down with reference to the center line O. An explanatory diagram of main parts (signal input section including a plurality of switches, control section, electric motor, power transmission means, cam gear). An explanatory diagram of the main parts (the final gear of the power transmission means, the cam gear, the engagement pin with rollers). A perspective view of a cam gear. A schematic cross-sectional explanatory diagram of the main parts (the electric motor, the mounting base plate, the cam gear, and the central axis of the cam gear) viewed from the rear end side of the lock box. FIG. 3 is a schematic cross-sectional explanatory diagram showing an engagement structure between an engagement pin and a slider that engage with an eccentric cam groove of a cam gear. An exploded explanatory view of a reversal prevention member (shaft, locking bead, locking spring) (only one locking bead is shown). FIG. 6 is an explanatory diagram in which the blocking state of the locking piece against the reversal latch is released by the advance of the slider. An explanatory diagram of a locking/unlocking detection lever and a brake detection lever as a signal input section. FIG. 6 is an explanatory diagram showing the postures of the locking/unlocking detection lever and the brake detection lever when the cam gear has rotated and unlocking is completed. An explanatory view of the locking/unlocking detection lever shown in FIG. 11 being guided to an inclined surface or step portion formed in an arcuate groove formed outside the eccentric cam groove of the cam gear.

図１乃至図１２は、本発明の第１実施形態の建具用の反転ラッチ式電気錠（以下、ここでは単に「電動ラッチ錠」という。）である。図１は錠箱３に設けられた主な構成部材を示した概略説明図（施錠状態）、一方、図２は、図１に於いて、中心線Ｏを基準にして錠箱３をひっくり返した場合の概略説明図（施錠状態）である。 1 to 12 show a reversible latch type electric lock for fittings (hereinafter simply referred to as "electric latch lock") according to a first embodiment of the present invention. FIG. 1 is a schematic explanatory diagram (locked state) showing the main components provided in the lock box 3. On the other hand, FIG. FIG. 2 is a schematic explanatory diagram (locked state) when

（１）電動ラッチ錠Ｘの主な構成部材
電動ラッチ錠Ｘは、錠箱３と、該錠箱に設けられた反転ラッチ６と、該反転ラッチを付勢する付勢手段１３と、該反転ラッチと係脱する少なくとも一個の反転阻止部材１２を構成するロッキングピース８Ａ、８Ｂと、望ましくは前記錠箱に設けた電源を利用する電動モータ２８と、この電気錠を制御する制御部２６と、前記電動モータの回転軸（ウオーム）に連動する伝動歯車３２を有する動力伝達手段３１と、前記伝動歯車３２に連動するカムギア３５と、このカムギア３５に形成されたカムミゾ４２及び該カムミゾに係合する係合ピン４５を含み、前記伝動歯車やカムギアの回転運動を直線運動に変換する動力変換手段４１と、前記動力変換手段によって水平方向に位置変位し、前記反転ラッチ６の係止している前記反転阻止部材１２のロッキングピース８Ａ、８Ｂを回転させることにより、反転ラッチの阻止（係止状態）を解くスライダー５０とを備えている。 (1) Main constituent members of the electric latch lock X The electric latch lock Locking pieces 8A and 8B constituting at least one reversal prevention member 12 that engages and disengages from the latch, an electric motor 28 that preferably utilizes a power source provided in the lock box, and a control unit 26 that controls the electric lock. A power transmission means 31 having a transmission gear 32 interlocked with the rotating shaft (worm) of the electric motor, a cam gear 35 interlocked with the transmission gear 32, a cam groove 42 formed on the cam gear 35, and a cam groove engaged with the cam groove. A power converting means 41 including an engagement pin 45 and converting the rotational motion of the transmission gear or cam gear into a linear motion; It includes a slider 50 that releases the blocking (locked state) of the reversal latch by rotating the locking pieces 8A, 8B of the reversal prevention member 12.

そして、好ましくは、上記構成に於いて、錠箱３内に、錠本体の施錠状態を検出する第１スイッチ２１と、錠本体の解錠状態を検出する第２スイッチ２２と、電動モータ２８を制動するためのスイッチ２３を配設し、前記制御部２６は、前記第１スイッチが検知した施錠信号を取得した後、電源をＯＦＦにする。また、前記構成に於いて、カムギア３５に形成した溝の傾斜面或いは段差面を利用して前記第１スイッチ２１及び第２スイッチ２２を選択的にＯＮ・ＯＦＦする施・解錠検知レバーを揺動自在に軸支すると共に、さらに前記施・解錠検知レバーに連系し、前記スイッチ２３を選択的にＯＮ・ＯＦＦするブレーキ検知レバーを揺動自在に軸支し、前記制御部２６は、前記スイッチが検知した制動用信号を取得した後、前記電動モータ２８にブレーキをかけて該電動モータ２８の回転力を弱めるように構成する。 Preferably, in the above configuration, the first switch 21 for detecting the locked state of the lock body, the second switch 22 for detecting the unlocked state of the lock body, and the electric motor 28 are provided in the lock box 3. A switch 23 for braking is provided, and the control unit 26 turns off the power after acquiring the locking signal detected by the first switch. Further, in the above configuration, the locking/unlocking detection lever for selectively turning on/off the first switch 21 and the second switch 22 is rocked by using the inclined surface or stepped surface of the groove formed in the cam gear 35. The control unit 26 is rotatably supported, and also pivotally supports a brake detection lever that is connected to the locking/unlocking detection lever and selectively turns on and off the switch 23. After acquiring the braking signal detected by the switch, the brake is applied to the electric motor 28 to weaken the rotational force of the electric motor 28.

そこで、まず、図１及び図２を参照にして、電動ラッチ錠Ｘの主な構成部材と環境説明をする。１は戸枠、２は水平方向に回転する扉、３は扉２の自由端部に固定された錠箱、４はフロント、５は受座、６は反転ラッチである。 First, the main components and environment of the electric latch lock X will be explained with reference to FIGS. 1 and 2. 1 is a door frame, 2 is a door that rotates in the horizontal direction, 3 is a lock box fixed to the free end of the door 2, 4 is a front, 5 is a catch, and 6 is a reversing latch.

換言すると、Ｘは電動ラッチ錠で、この電動ラッチ錠Ｘは、錠箱３に主な構成部材が設けられた錠本体を有し、この錠本体の反転ラッチ６は、その先端部は前記フロント４から突出し、前記受座５の係合孔に係入している。周知のように、前記扉２は、その基端部が戸枠１の縦枠に蝶番を介して軸支され、水平方向に回転する。また概略的に示した錠箱３は、普通一般に、ケース身と、ケース蓋から構成されている。実施形態の錠箱３は横長状の箱体である。ここでは錠箱３の細部的事項の説明や符号は割愛し、電動ラッチ錠Ｘの主な構成部材について説明する。 In other words, X is an electric latch lock, and this electric latch lock X has a lock body in which the main components are provided in the lock box 3, and the reversing latch 6 of this lock body has its tip end at the front side. 4 and engages in the engagement hole of the seat 5. As is well known, the base end of the door 2 is pivotally supported by the vertical frame of the door frame 1 via a hinge, and rotates in the horizontal direction. The schematically illustrated lock box 3 is generally composed of a case body and a case lid. The lock box 3 of the embodiment is a horizontally elongated box. Here, detailed explanations and symbols of the lock box 3 will be omitted, and the main constituent members of the electric latch lock X will be explained.

（２）ラッチ枠７
符号７は、錠箱３内の前方の中央部に固設された縦断面コ字状のラッチ枠で、このラッチ枠７の上下に位置する水平対向壁には、上下一組のロッキングピース８Ａ、８Ｂの係合先端部８ａ、８ａを受け入れる切欠状の開口が形成されている。また、水平対向壁に直交する垂直壁の内面にはバネ端支持部が突出形成され、該バネ端支持部と前記反転ラッチ６の後端部の間には、該反転ラッチ６をフロント４から突出する方向に常時付勢するラッチバネ１３が設けられている。 (2) Latch frame 7
Reference numeral 7 denotes a latch frame having a U-shaped longitudinal section fixed in the front central part of the lock box 3, and a pair of upper and lower locking pieces 8A are mounted on the horizontally opposing walls located above and below this latch frame 7. , 8B are formed with cutout-shaped openings for receiving the engagement tip portions 8a, 8B. Further, a spring end support portion is formed protruding from the inner surface of the vertical wall perpendicular to the horizontally opposing wall, and between the spring end support portion and the rear end portion of the reversing latch 6, the reversing latch 6 is moved from the front 4. A latch spring 13 is provided which is always biased in the protruding direction.

（３）反転ラッチ６
反転ラッチ６は、その後端部がラッチ枠７内に収まるようにフロント板４のラッチ用開口に配設されている。扉の閉扉時、反転ラッチ６の先端部は、フロント４から突出して受座５の係合孔に係入している。当業者は、この状態を仮施錠と称しているが、ここでは便宜上、「施錠或いは施錠状態」という。 (3) Reversing latch 6
The reversing latch 6 is disposed in the latch opening of the front plate 4 so that its rear end is accommodated within the latch frame 7. When the door is closed, the tip of the reversing latch 6 protrudes from the front 4 and engages in the engagement hole of the catch seat 5. Those skilled in the art refer to this state as temporary locking, but here, for convenience, it will be referred to as "locked or locked state."

ところで、反転ラッチ６の構造に関しては、例えば特開平８－１００５５９号公報、特開平９－３２５２４８号公報、特開平１０－３１１１７３号公報、特開平１１－１４１２０７号公報、特開２００３－７４２４５号公報等に記載されているように、当業者にとって周知事項である。 By the way, regarding the structure of the reversing latch 6, for example, JP-A-8-100559, JP-A-9-325248, JP-A-10-311173, JP-A-11-141207, and JP-A-2003-74245. This is well known to those skilled in the art, as described in et al.

したがって、ここでは、周知事項に関しては簡単に説明する。反転ラッチ６は、平面形状がほぼ菱形に形成され、ラッチングの係止面、受け具を構成する受座５の係合孔に対する傾斜面、ストッパー用突起、上下の係合受け部６ａ、６ａ等を有している。普通一般に、反転ラッチ６は、扉２の開閉時、受け具の係合部に摺接すると、反転ラッチ６の後端部（内端部）に嵌め込まれた平面門形形状のラッチ受け１１及びラッチバネ（圧縮コイルばね）１３を介して反転かつ進退動する。なお、ラッチ受け１１は、反転ラッチ６を水平方向に安定的に案内するガイド機能を有している（例えば特開平１１－１４１２０７号公報の図３に示されているラッチ受け３２）。 Therefore, here, well-known matters will be briefly explained. The reversal latch 6 has a substantially diamond-shaped planar shape, and includes a latching locking surface, an inclined surface of the catch 5 constituting the receiver with respect to the engagement hole, a stopper protrusion, upper and lower engagement receiving portions 6a, 6a, etc. have. Generally, when the reversing latch 6 slides into contact with the engaging part of the receiver when the door 2 is opened or closed, the latch receiver 11 and the planar portal-shaped latch receiver 11 fitted into the rear end (inner end) of the reversing latch 6 are inserted into the rear end (inner end) of the reversing latch 6. It reverses and moves forward and backward via a latch spring (compression coil spring) 13. Note that the latch receiver 11 has a guide function to stably guide the reversing latch 6 in the horizontal direction (for example, the latch receiver 32 shown in FIG. 3 of Japanese Patent Laid-Open No. 11-141207).

（４）反転阻止部材１２
反転阻止部材１２は、施錠時、反転ラッチ６の反転を阻止する機構を構成する部材で、少なくとも一つのロッキングピース（８Ａ、８Ｂのいずれか一方）と、このロッキングピースを回転自在に軸支する固定軸９と、この固定軸に中央部が設けられ、一端部が錠箱に内壁面に圧接し、一方、他端部が前記ロッキングピース（８Ａ、８Ｂのいずれか一方）のバネ支持部に支持された戻しバネ１０とから成る。 (4) Reversal prevention member 12
The reversal prevention member 12 is a member constituting a mechanism that prevents the reversal latch 6 from reversing when the lock is locked, and supports at least one locking piece (either 8A or 8B) and this locking piece rotatably. The fixed shaft 9 is provided with a central portion, one end of which presses against the inner wall surface of the lock box, and the other end of which is in pressure contact with the spring support portion of the locking piece (either 8A or 8B). and a supported return spring 10.

実施形態の反転阻止部材１２は、上下一組のロッキングピース８Ａ、８Ｂを有し、該上下一組のロッキングピース８Ａ、８Ｂは、例えば特許第５１５０１３４号に記載に記載されているように、上下方向のアーム部の先端部の長孔に係合する一つの可動連結軸１５を介して鋏揺動自在に連結されている。上下一組のロッキングピース８Ａ、８Ｂの構成は公知事項なので、ここでは簡単に説明する。符号８ａは略中央部の軸支部分から反転ラッチ６の係合受け部６ａ側へ略水平方向へと延びる係合先端部、符号８ｂは軸支部分から前記係合先端部とは逆方向に延びる係合後端部、符号８ｃは軸支部分から略垂直方向に延びアーム部である。実施形態では、錠本体の解錠時、スライダー５０の先端部に形成した突起状の押圧部５２が、前記ロッキングピース８Ａ、８Ｂのアーム部８ｃの先端部の後面を押し付ける。そうすると、前記可動連結軸１５は前方（反転ラッチ側、図面左側）へ所要量進むことから、上下一組のロッキングピース８Ａ、８Ｂは、固定軸９、９を支点に、上下の係合先端部８ａ、８ａが反転ラッチ６の上下の係合受け部６ａ、６ａから離れる方向へと回転する（鋏み揺動）。 The reversal prevention member 12 of the embodiment has a pair of upper and lower locking pieces 8A, 8B, and the pair of upper and lower locking pieces 8A, 8B are configured to have an upper and a lower locking piece 8B, as described in, for example, Japanese Patent No. 5150134. The scissors are swingably connected via one movable connecting shaft 15 that engages with a long hole in the tip of the arm in the direction. The structure of the upper and lower locking pieces 8A, 8B is well known, so it will be briefly explained here. Reference numeral 8a denotes an engagement tip extending from the shaft portion at the substantially central portion to the engagement receiving portion 6a side of the reversing latch 6 in a substantially horizontal direction, and reference numeral 8b denotes an engagement tip extending from the shaft portion in the opposite direction to the engagement tip. The joint rear end portion, reference numeral 8c, is an arm portion extending substantially perpendicularly from the shaft portion. In the embodiment, when the lock main body is unlocked, the protruding pressing portion 52 formed at the tip of the slider 50 presses the rear surface of the tip of the arm portion 8c of the locking pieces 8A, 8B. Then, the movable connecting shaft 15 moves forward (to the reversing latch side, left side in the drawing) by the required amount, so that the pair of upper and lower locking pieces 8A, 8B move around the fixed shafts 9, 9 at the upper and lower engagement tips. 8a, 8a rotate in a direction away from the upper and lower engagement receivers 6a, 6a of the reversing latch 6 (scissor swinging).

なお、施錠時、電動モータ２８の回転軸３１が解錠時とは反対方向に回転すると、カムギア３５に連動するスライダー５０は反転ラッチから離れる方向に移動する。そうすると、スライダー５０の押圧部５２がアーム部８ｃの先端部の後面から後退するので、ロキングピース８Ａ、８Ｂは、戻しバネ１０のバネ力により施錠方向へと回転し、その結果、上下の係合先端部８ａ、８ａが反転ラッチ６の上下の係合受け部６ａ、６ａに係合する。 Note that when the rotating shaft 31 of the electric motor 28 rotates in a direction opposite to that when the lock is unlocked, the slider 50 interlocked with the cam gear 35 moves in a direction away from the reversing latch. Then, the pressing part 52 of the slider 50 retreats from the rear surface of the tip of the arm part 8c, so the locking pieces 8A, 8B rotate in the locking direction by the spring force of the return spring 10, and as a result, the upper and lower engagement The mating end portions 8a, 8a engage with the upper and lower engagement receiving portions 6a, 6a of the reversing latch 6.

（５）取付けベース部材、主な部材
図１を基準にすると、横長状の錠箱３の内部空間の後部側には、複数個の支軸、軸孔、貫通小孔、矩形開口等を有する扁平枠状或いは扁平箱状の取付けベース部材１９が固定的に設けられている。しかして、前記取付けベース部材１９の中央部寄りの部位には、水平支持板２０が設けられ、該水平支持板２０の上面には、錠本体の施錠状態を検出する第１スイッチ（検知器）２１と、錠本体の解錠状態を検出する第２スイッチ（検知器）２２と、電動モータ２８に制動するためのスイッチ（検知器）２３が併設的に配設されている。なお、前記スイッチ２３は、施解錠完了検知後にカムギア３５がオーバーランすることから、伝動モータ２８の回転力を弱めるために設けたものであるから、必ずしも、本発明の本質的事項ではない。 (5) Mounting base member, main components Based on Fig. 1, the rear side of the internal space of the oblong lock box 3 has a plurality of support shafts, shaft holes, small through holes, rectangular openings, etc. A flat frame-shaped or flat box-shaped mounting base member 19 is fixedly provided. A horizontal support plate 20 is provided at a portion near the center of the mounting base member 19, and a first switch (detector) is provided on the upper surface of the horizontal support plate 20 to detect the locked state of the lock body. 21, a second switch (detector) 22 for detecting the unlocked state of the lock body, and a switch (detector) 23 for braking the electric motor 28 are arranged side by side. Note that the switch 23 is provided to weaken the rotational force of the transmission motor 28 since the cam gear 35 overruns after the completion of locking/unlocking is detected, and is therefore not necessarily an essential feature of the present invention.

前記第１乃至第３のスイッチ２１、２２、２３の上方には、図面左側に位置する施・解錠検知レバー２４と、図面右側に位置し、前記施・解錠検知レバー２４に連動するブレーキ検知レバー２５が設けられている。実施形態では、前記第１乃至第３のスイッチ２１、２２、２３は、取付けベース部材２０に設けられた制御部２６に対して信号線を介して錠本体の状態信号及び電動モータに対する制動信号をメカ的に入力する信号入力部を構成する。 Above the first to third switches 21, 22, and 23, there is a locking/unlocking detection lever 24 located on the left side of the drawing, and a brake that is located on the right side of the drawing and interlocking with the locking/unlocking detection lever 24. A detection lever 25 is provided. In the embodiment, the first to third switches 21, 22, and 23 send state signals of the lock body and braking signals to the electric motor to a control unit 26 provided on the mounting base member 20 via signal lines. Configures a signal input section for mechanical input.

なお、特に図示しないが、前記メカ的な信号入力部の他に、リモコンを用い、無線の届く範囲の遠隔位置から前記制御部２６に施錠開始信号、解錠開始信号等の入力信号を送信することができる。また、図示しないテンキー、ノンタッチキー、カードリーダ、ＲＦＩＤタグ、顔認証手段、音声認識手段等の信号入力部を利用して前記制御部２６に施錠開始信号、解錠開始信号等の入力を送信することができる。したがって、制御部２６に対しては有線又は無線方式により、前記施・解錠用の信号を送信することができる。このような実施形態の場合には、制御部２６は当然に信号送受信部、認証部、記憶部等を有している。 Although not particularly shown, in addition to the mechanical signal input section, input signals such as a locking start signal and an unlocking start signal are transmitted to the control section 26 from a remote location within the range of wireless communication using a remote control. be able to. Further, inputs such as a locking start signal and an unlocking start signal are sent to the control section 26 using a signal input section such as a numeric keypad, non-touch key, card reader, RFID tag, face authentication means, voice recognition means, etc. (not shown). be able to. Therefore, the locking/unlocking signal can be transmitted to the control unit 26 by wire or wirelessly. In such an embodiment, the control section 26 naturally includes a signal transmitting/receiving section, an authentication section, a storage section, and the like.

また実施形態では、前記取付けベース部材２０にバッテリーとしての二次電池（内臓電源）２７が設けられている。さらに、前記二次電池２７により駆動する電動モータ（電気的駆動部）２８が横設されている。電動モータ２８は、前記制御部２６によって、その起動、回転方向及び停止が制御される。なお、電動モータ２８に供給する電源は、外部電源（商用電源）であっても良い。電源が外部電源の場合には、交流電源を整流して電動モータ２８に供給する。 Further, in the embodiment, the mounting base member 20 is provided with a secondary battery (built-in power source) 27 as a battery. Further, an electric motor (electric drive unit) 28 driven by the secondary battery 27 is installed horizontally. The electric motor 28 is controlled by the control section 26 in terms of starting, rotating direction, and stopping. Note that the power supplied to the electric motor 28 may be an external power source (commercial power source). When the power source is an external power source, the AC power source is rectified and supplied to the electric motor 28 .

（６）動力伝達手段３１
次に、図１、図２等を参照にして動力伝達手段３１を説明する。動力伝達手段３１は、電動モータ２８のウオーム（出力軸）２９と、このウオームに噛合する伝動歯車３２とを含み、前記伝動歯車３２は、前記ウオーム２９に噛合する大径歯車３２ａと、この大径歯車の一側面に突出形成され、かつ大径のカムギア３５の外周部に形成された係合歯に噛合する小径歯車（最終歯車）３２ｂとを有している。実施形態の動力伝達手段３１は、例えば扁平枠状の取付けベース部材１９と、これに対向する扁平枠状支持板１８に横設した歯車軸３６に取り付けられている。 (6) Power transmission means 31
Next, the power transmission means 31 will be explained with reference to FIGS. 1, 2, etc. The power transmission means 31 includes a worm (output shaft) 29 of the electric motor 28 and a transmission gear 32 that meshes with the worm, and the transmission gear 32 includes a large diameter gear 32a that meshes with the worm 29, A small diameter gear (final gear) 32b is formed protruding from one side of the diameter gear and meshes with engagement teeth formed on the outer circumference of the large diameter cam gear 35. The power transmission means 31 of the embodiment is attached to, for example, a flat frame-shaped mounting base member 19 and a gear shaft 36 horizontally disposed on a flat frame-shaped support plate 18 facing thereto.

（７）カムギア３５
大径のカムギア３５は、動力伝達手段３１の伝動歯車３２と共働する従動歯車である。すなわち、カムギア３５は動力伝達手段３１に連動して左右に回転することができる。例えば伝動歯車３２が時計方向に回転すると、カムギア３５は反時計方向に回転し、伝動歯車３２が反時計方向に回転すると、カムギア３５は時計方向に回転する。 (7) Cam gear 35
The large diameter cam gear 35 is a driven gear that cooperates with the transmission gear 32 of the power transmission means 31. That is, the cam gear 35 can rotate left and right in conjunction with the power transmission means 31. For example, when the transmission gear 32 rotates clockwise, the cam gear 35 rotates counterclockwise, and when the transmission gear 32 rotates counterclockwise, the cam gear 35 rotates clockwise.

（８）動力変換機構４１
次に、図３、図４等を参照にして動力変換機構４１を説明する。動力変換機構４１は、カムギア３５の一側面に形成された環状或いは環状的な偏心カム溝４２及び該偏心カム溝に係合すると共に、スライダー５０の係合部（例えば係合小孔）５３に連結された係合ピン４５から構成されている。 (8) Power conversion mechanism 41
Next, the power conversion mechanism 41 will be explained with reference to FIGS. 3, 4, etc. The power conversion mechanism 41 engages with an annular or annular eccentric cam groove 42 formed on one side of the cam gear 35 and the eccentric cam groove, and also engages with an engaging portion (for example, an engaging small hole) 53 of the slider 50. It is composed of connected engagement pins 45.

しかして、カムギア３５の偏心カム溝４２は、該カムギア３５の中心軸筒部３５ａの外周面の一部からアンモナイトの外観形状のように周方向に次第に膨らんだ弧状突起部分４３に沿って形成されており、解錠時、カムギア３５が錠箱３内の略中心部に位置するように、例えば錠箱３内の取付けベース部材１９及び扁平枠状支持板１８に横設した中心軸３７を基準にして一方向に回転すると、前記係合ピン４５は前記弧状突起部分４３の弧状面に沿って前記中心軸筒部３５ａから次第に離れて行く。 Thus, the eccentric cam groove 42 of the cam gear 35 is formed along an arcuate projection portion 43 that gradually bulges in the circumferential direction from a part of the outer peripheral surface of the central shaft cylindrical portion 35a of the cam gear 35, like the appearance shape of an ammonite. For example, the center shaft 37 is set horizontally on the mounting base member 19 and the flat frame-shaped support plate 18 inside the lock box 3, so that the cam gear 35 is located approximately at the center inside the lock box 3 when the lock is unlocked. When the engaging pin 45 rotates in one direction, the engaging pin 45 gradually moves away from the central shaft cylindrical portion 35a along the arcuate surface of the arcuate projection portion 43.

実施形態では、前記係合ピン４５の一端部には偏心カム溝４２を滑動する短筒状のコロ４６が設けられ、その他端部は、例えば図２で示すようにスライダー５０の後端部側に適宜に連結されている。したがって、電動ラッチ錠Ｘは、動力伝達手段３１に連動するカムギア３５と、このカムギアの回転運動によって錠箱３の長手方向へと直線運動する板状のスライダー５０とを備えている。 In the embodiment, one end of the engagement pin 45 is provided with a short cylindrical roller 46 that slides on the eccentric cam groove 42, and the other end is provided on the rear end side of the slider 50, for example, as shown in FIG. are linked as appropriate. Therefore, the electric latch lock X includes a cam gear 35 interlocked with the power transmission means 31, and a plate-shaped slider 50 that moves linearly in the longitudinal direction of the lock box 3 by the rotational movement of the cam gear.

（９）スライダー５０
スライダー５０は、少なくとも幅広い板状部分５１と、この幅広い板状部分の先端部の略中央部に突出形成された押圧部５２と、前記幅広い板状部分に形成された係合ピン用の係合小孔５３とを有し、解錠時、前記押圧部５２が前述したロッキングピース８Ａ、８Ｂの軸支部分から略垂直方向に延びるアーム部８ｃの先端部の後面を押し付け、これにより、前記ロッキングピースの軸支部分から水平方向に延びる先端係合部８ａが、反転ラッチ６の係合受け部６ａから離れる。付言すると、電動ラッチ錠Ｘは、解錠時、電動モータ２８が起動すると、動力伝達手段３１及び動力変換機構４１を介してスライダー５０が反転ラッチ６側に所要量前進して前記反転ラッチ６に対するロッキングピース８Ａ、８Ｂの阻止状態を解く。 (9) Slider 50
The slider 50 includes at least a wide plate-like portion 51, a pressing portion 52 protruding from the approximate center of the distal end of the wide plate-like portion, and an engagement pin formed on the wide plate-like portion. When the lock is unlocked, the pressing part 52 presses the rear surface of the tip of the arm part 8c extending substantially vertically from the shaft portion of the locking pieces 8A, 8B, thereby causing the locking piece to open. A tip engaging portion 8a extending horizontally from the shaft portion of the reversing latch 6 separates from the engaging receiving portion 6a of the reversing latch 6. In addition, when the electric latch lock X is unlocked, when the electric motor 28 is started, the slider 50 moves forward by a required amount toward the reversing latch 6 via the power transmission means 31 and the power conversion mechanism 41, and the slider 50 moves toward the reversing latch 6 by a required amount. Release the blocking state of locking pieces 8A and 8B.

スライダー５０の幅広い板状部分５１の適宜箇所には、取付けベース板１９の一端部を折り曲げて形成した案内突片と係合する係合受け部としての矩形状の窓部が形成されている。また図示しないが、錠箱３内の略中央部に、特許文献２に記載に記載されているように、復帰バネ力のバネ力に抗して上下方向に移動する一対の係合作用片を組み込むことができる。そして、前記矩形状の窓部には、図示しない操作部材（例えばフッシュ・プルハンドル）の操作によって上下方向に選択的に移動可能な一対の駆動片が入り込み、これらの駆動片のいずれか一方が移動すると、前記上下のキングピース８Ａ、８Ｂは、前記係合作用片を介して解錠方向へと回転し、該ロッキングピース８Ａ、８Ｂの反転ラッチ６に対する阻止状態を解くことができる。なお、該形状の窓部を形成する上面と該上面と対向する下面には、取付けベース部材１９の案内突片の上端部と下端部が係合するので、スライダー５０は水平移動する際、取付けベース部材１９に安定的に案内される。 Rectangular windows are formed at appropriate locations on the wide plate-like portion 51 of the slider 50 as engagement receiving portions that engage with guide protrusions formed by bending one end of the mounting base plate 19. Although not shown, a pair of engagement pieces that move in the vertical direction against the spring force of the return spring force are provided approximately at the center of the lock box 3, as described in Patent Document 2. can be incorporated. A pair of drive pieces that can be selectively moved in the vertical direction by operating an operation member (for example, a fish pull handle) (not shown) enters the rectangular window, and one of these drive pieces is moved. When moved, the upper and lower king pieces 8A, 8B are rotated in the unlocking direction via the engaging pieces, and the blocking state of the locking pieces 8A, 8B against the reversing latch 6 can be released. Note that the upper end and lower end of the guide protrusion of the mounting base member 19 engage with the upper surface forming the window portion of the shape and the lower surface opposite to the upper surface, so that when the slider 50 moves horizontally, the mounting It is stably guided by the base member 19.

ところで、実施形態では、解錠時、押圧部５２がロッキングピース８Ａ、８Ｂの軸支部分から略垂直方向に延びるアーム部を押し付け（可動連結軸１５を直接押し込んだ場合も含む）、これにより、前記ロッキングピースの軸支部分から水平方向に延びる先端係合部が、前記反転ラッチの係合受け部から離れるが、例えばロッキングピース８Ａ、８Ｂの長孔に係合する可動連結部１５の一端部又は両端部に前記押圧部５２に係合した連結部（係合孔、フック部等）を係合させることにより、ロッキングピース８Ａ、８Ｂを鋏揺動自在に連動するように構成しても良い（設計変更例）。このような実施形態の場合には、必ずしも「ロッキングピース８Ａ、８Ｂ用の戻しバネ１０」を設ける必要はない。 By the way, in the embodiment, when unlocking, the pressing part 52 presses the arm part extending in the substantially vertical direction from the shaft portion of the locking pieces 8A, 8B (including the case where the movable connecting shaft 15 is directly pushed), thereby, the above-mentioned A distal end engaging portion extending horizontally from the shaft portion of the locking piece is separated from the engaging receiving portion of the reversing latch, but is engaged with elongated holes of the locking pieces 8A, 8B, for example, at one end or both ends of the movable connecting portion 15. The locking pieces 8A and 8B may be configured to interlock with each other so that the scissors can swing freely by engaging a connecting portion (an engaging hole, a hook portion, etc.) that engages with the pressing portion 52 (depending on the design). Example of change). In the case of such an embodiment, it is not necessarily necessary to provide "the return spring 10 for the locking pieces 8A, 8B".

（１０）複数個のスイッチ２１、２２、２３
図１で示したように、取付けベース部材１９の中央部寄りの部位には、水平支持板２０が設けられ、該水平支持板２０の上面には、錠本体の施錠状態を検出する第１スイッチ２１と、錠本体の解錠状態を検出する第２スイッチ２２と、電動モータ２８に制動するためのスイッチ２３が併設的に配設されている。実施形態では、前記第１スイッチ２１、第２スイッチ２２及びスイッチ２３は、それぞれ同一構成の押し釦式のスイッチである。 (10) Multiple switches 21, 22, 23
As shown in FIG. 1, a horizontal support plate 20 is provided at a portion near the center of the mounting base member 19, and a first switch for detecting the locked state of the lock body is provided on the upper surface of the horizontal support plate 20. 21, a second switch 22 for detecting the unlocked state of the lock body, and a switch 23 for braking the electric motor 28 are arranged side by side. In the embodiment, the first switch 21, the second switch 22, and the switch 23 are push-button switches having the same configuration.

ところで、錠本体の電動モータ２８の起動用の信号（施錠開始信号、解錠開始信号）は、戸枠１側と錠箱３側にそれぞれ設けた磁気感応型スイッチ、錠箱３に設けたトリガーやリミットスイッチ等の各種スイッチ手段により、「閉扉信号」や「開扉信号」を取得して電動モータ２８を起動することができるが、好ましい実施形態では、リモコン操作、携帯端末、ノナタッチキー、タグ等により、制御部２６は電動モータ２８の施・解錠用の起動信号を取得する。 By the way, the signals for starting the electric motor 28 of the lock body (locking start signal, unlocking start signal) are generated by a magnetically sensitive switch provided on the door frame 1 side and the lock box 3 side, respectively, and a trigger provided on the lock box 3. The electric motor 28 can be started by acquiring a "door closing signal" or "door opening signal" using various switch means such as a limit switch or a limit switch. Accordingly, the control unit 26 obtains a start signal for locking/unlocking the electric motor 28.

しかして、電動モータ２８の起動信号を利用して電動モータ２８を正転又は逆転方向のいずれか一方に起動した場合に於いて、制御部２６は、扉の開閉状態のみならず、錠本体が施錠状態なのか、それとも解錠状態なのかを検知するのが望ましい。また、電動モータ２８の起動した場合に於いて、該電動モータ２８の停止時にカムギア３５がオーバーランしないように「ブレーキ」をかけることが好ましい。そこで、実施形態の電動ラッチ錠Ｘは、錠箱３内の適宜箇所に、錠本体の施錠状態を検出する第１スイッチ２１と、錠本体の解錠状態を検出する第２スイッチ２２のみならず、さらに電動モータ２８に制動するためのスイッチ２３を配設した。 Therefore, when the electric motor 28 is activated in either the forward or reverse direction using the activation signal of the electric motor 28, the control unit 26 not only controls whether the door is open or closed, but also whether the lock body is It is desirable to detect whether the door is locked or unlocked. Furthermore, when the electric motor 28 is started, it is preferable to apply a "brake" to prevent the cam gear 35 from overrunning when the electric motor 28 is stopped. Therefore, the electric latch lock X of the embodiment includes not only the first switch 21 for detecting the locked state of the lock body and the second switch 22 for detecting the unlocked state of the lock body, but also the first switch 21 and the second switch 22 for detecting the unlocked state of the lock body at appropriate locations in the lock box 3. Furthermore, a switch 23 for braking the electric motor 28 is provided.

（１１）施・解錠検知レバー２４とブレーキ検知レバー２５
好ましい実施形態は、図１で示すように、錠本体の施錠状態を検出する第１スイッチ２１と、錠本体の解錠状態を検出する第２スイッチ２２と、電動モータ２８に制動するためのスイッチ２３を水平支持板２０の一側上面に併設的に配設している。 (11) Locking/unlocking detection lever 24 and brake detection lever 25
As shown in FIG. 1, a preferred embodiment includes a first switch 21 for detecting the locked state of the lock body, a second switch 22 for detecting the unlocked state of the lock body, and a switch for braking the electric motor 28. 23 is arranged on the upper surface of one side of the horizontal support plate 20.

そして、前記第１スイッチ２１と第２スイッチ２２の略中間部上方に横軸を設け、該横軸に施・解錠検知レバー２４を揺動自在に軸支する。前記施・解錠検知レバー２４は、図面手前側に前記横軸に嵌合するボス部と、該ボス部から半径外方向に延びる左右一対の押圧用の指先状突起部分（便宜上、左側を第１係合部２４ａ、右側を第２係合部２４ｂとする）とを有し、一方の突起部分（左の第１係合部２４ａ）は図面左側に位置する第１スイッチ２１の丸みを帯びた押し釦の上に位置し、他方の突起部分（右の第２係合部２４ｂ）は中間に位置する第２スイッチ２２の丸みを帯びた押し釦の上に位置する。 A horizontal shaft is provided above a substantially intermediate portion between the first switch 21 and the second switch 22, and a locking/unlocking detection lever 24 is swingably supported on the horizontal shaft. The locking/unlocking detection lever 24 includes a boss portion that fits on the horizontal shaft on the front side in the drawing, and a pair of left and right pressing fingertip-like protrusions extending radially outward from the boss portion (for convenience, the left side is the One engaging part 24a is on the right side, and a second engaging part 24b is on the right side, and one protruding part (first engaging part 24a on the left side) has a rounded shape of the first switch 21 located on the left side of the drawing. The other protruding portion (second engaging portion 24b on the right) is located above the rounded push button of the second switch 22 located in the middle.

そして、施・解錠検知レバー２４には、図１では現れていないが、前記他方の突起部分（右の突起）の背面側にピン状係合部（便宜上、第３係合部２４ｃ）が設けられ、該ピン状係合部（第３係合部２４ｃ）は、カムギア３５の環状的外溝４７に係合する。 Although it does not appear in FIG. 1, the locking/unlocking detection lever 24 has a pin-shaped engagement part (for convenience, a third engagement part 24c) on the back side of the other protrusion (the right protrusion). The pin-shaped engaging portion (third engaging portion 24c) engages with the annular outer groove 47 of the cam gear 35.

ここで、施・解錠検知レバー２４とブレーキ検知レバー２５の連係関係を説明する。後述するように、施・解錠検知レバー２４のピン状第３係合部（図１０で下方に延びるピン）２４ｃは、ブレーキ検知レバー２５の弧状係合部（図１０で左側に弧状或いは鉤状に延びるピン）２５ａに係合する。実施形態では、前記施・解錠検知レバー２４のピン状第３係合部２４ｃは、さらに、カムギア３５の環状的外溝４７にも係合する。 Here, the relationship between the locking/unlocking detection lever 24 and the brake detection lever 25 will be explained. As will be described later, the pin-shaped third engagement portion (the pin extending downward in FIG. 10) 24c of the lock/unlock detection lever 24 is connected to the arc-shaped third engagement portion (the arc-shaped or hooked portion on the left side in FIG. 10) of the brake detection lever 25. (pin) 25a extending in a shape. In the embodiment, the pin-shaped third engaging portion 24c of the locking/unlocking detection lever 24 further engages with the annular outer groove 47 of the cam gear 35.

実施形態では、前記環状的外溝４７を形成する外周面４７ａと該外周面に対向する内周面４７ｂは、途中部分に前記施・解錠検知レバー２４のピン状第３係合部２４ｃを誘導するための外傾斜面４８と該外傾斜面に対向する内傾斜面４９を有し、この外傾斜面４８と内傾斜面４９を境にして、若干外側に位置する第１弧状溝と、該第１弧状溝よりも若干内側に位置する第２弧状溝を形成している。 In the embodiment, the outer circumferential surface 47a forming the annular outer groove 47 and the inner circumferential surface 47b opposite to the outer circumferential surface have a pin-shaped third engaging portion 24c of the locking/unlocking detection lever 24 at an intermediate portion thereof. a first arcuate groove having an outer sloped surface 48 for guiding and an inner sloped surface 49 opposite to the outer sloped surface, and located slightly outside of the outer sloped surface 48 and the inner sloped surface 49; A second arcuate groove is formed slightly inside the first arcuate groove.

さらに、実施形態では、前記第１スイッチ２１及び第２スイッチ２２を選択的にＯＮ・ＯＦＦする施・解錠検知レバー２４を揺動自在に軸支すると共に、前記施・解錠検知レバーに連動するブレーキ検知レバー２５も隣に軸支されている。 Furthermore, in the embodiment, a locking/unlocking detection lever 24 that selectively turns ON/OFF the first switch 21 and the second switch 22 is rotatably supported, and is interlocked with the locking/unlocking detection lever. A brake detection lever 25 is also pivotally supported next to it.

すなわち、実施形態では、施・解錠検知レバー２４のピン状第３係合部２４ｃにブレーキ検知レバー２５の弧状係合部２５ａが連系（係合）するので、前記ピン状第３係合部２４ｃとは反対側に突出する指先状係合部２５ｂが前記スイッチ２３を選択的にＯＮ・ＯＦすることができる。 That is, in the embodiment, since the arc-shaped engagement part 25a of the brake detection lever 25 is connected to (engaged with) the pin-shaped third engagement part 24c of the locking/unlocking detection lever 24, the pin-shaped third engagement part 24c A fingertip-like engaging portion 25b protruding on the opposite side from the portion 24c can selectively turn the switch 23 on and off.

さらに、本願発明の主たる発明課題との関係では、従属的ではあるが、ここで、図１１及び図１２を参照にして、ブレーキ検知レバー２５の弧状係合部２５ａとガムギア３５の係合構成について簡単に説明する。ガムギア３５は、環状的外溝４７の一部に沿って突壁状に形成された弧状突起部分６０を有し、該弧状突起部分６０の外周面及び該弧状突起部分６０の端部に形成した傾斜状の係合面が前記ブレーキ検知レバー２５の弧状係合部２５ａと係脱可能である。このような係合関係の構成を採用することにより、制御部は、最良のタイミングでもって、ブレーキ検知レバー２５からブレーキ用の信号を貰い、ガムギア３５が回り過ぎないようにすることができる。 Furthermore, although it is subordinate in relation to the main inventive problem of the present invention, here, with reference to FIGS. Explain briefly. The gum gear 35 has an arcuate protrusion 60 formed in the shape of a projecting wall along a part of the annular outer groove 47, and an arcuate protrusion 60 formed on the outer peripheral surface of the arcuate protrusion 60 and at the end of the arcuate protrusion 60. The inclined engagement surface can be engaged with and disengaged from the arcuate engagement portion 25a of the brake detection lever 25. By employing such an engagement relationship configuration, the control section can receive a brake signal from the brake detection lever 25 at the best timing and can prevent the gum gear 35 from rotating too much.

なお、施・解錠検知レバー２４とブレーキ検知レバー２５とをオス係合とメス係合部を介して一体的に連係しない場合には、ブレーキ検知レバー２５の横軸に、前記ブレーキ検知レバーを元の位置へと復帰させるための復帰バネを適宜に設けるのが望ましい。 In addition, when the locking/unlocking detection lever 24 and the brake detection lever 25 are not integrally linked via the male engagement part and the female engagement part, the brake detection lever is attached to the horizontal axis of the brake detection lever 25. It is desirable to appropriately provide a return spring for returning to the original position.

〈付記〉
実施形態では、偏心カム溝４２はカムギア３５の一側面に形成された環状或いは環状的な凹所の溝であるが、もちろん、凹所の溝を切欠溝としても良い。また、施錠または解錠を検知するスイッチ２１、２２は、実施形態のようにそれぞれ独立して設けても良いが、例えば１個のスイッチで制御（ＯＮ＝施錠、ＯＦＦ＝解錠とみなして制御し、接点スイッチを使用）することもできる。それ故に、スイッチを単数又は複数のスイッチか否かは任意である。〈Additional notes〉
In the embodiment, the eccentric cam groove 42 is an annular or annular recessed groove formed on one side of the cam gear 35, but the recessed groove may of course be a notched groove. Further, the switches 21 and 22 for detecting locking or unlocking may be provided independently as in the embodiment, but for example, they are controlled by one switch (ON = locked, OFF = unlocked). However, it is also possible to use a contact switch). Therefore, it is arbitrary whether the switch is a single switch or a plurality of switches.

本発明は、建具の開扉の自由端部に取り付け、例えば開扉乃至戸枠にドアクローザ、開扉自動オープン装置等を装着し、開扉を容易に、或いは自動的にオープンする場合に適用される。 The present invention is applied to the case where a door closer, an automatic door opening device, etc. is attached to the free end of a door of a fitting, and the door is opened easily or automatically. Ru.

Ｘ…電動ラッチ錠、
１…戸枠、２…扉、
３…錠箱、４…フロント、
５…受け座、
６…反転ラッチ、
７…ラッチ枠、
８Ａ、８Ｂ…ロッキングピース、
９…固定軸、
１０…戻しバネ、
１１…ラッチ受け、
１２…反転阻止部材、
１５…可動連結軸、
１９…取付けベース板、
２０…水平支持板、
２１…第１スイッチ、２２…第２スイッチ、２３…スイッチ、
２４…施・解錠レバー、２５…ブレーキレバー、
２６…制御部、
２７…電源、２８…電動モータ、
３１…動力伝達手段、３２…歯車、
３５…カムギア、３６…歯車軸、３７…中心軸、
４１…動力変換機構、
４２…偏心カム溝、４３…弧状突起部分、
４５…係合ピン、４６…コロ、
４７…環状的外溝、４８…外傾斜面、４９…内傾斜面、
５０…スライダー、５１…幅広の板状部分、５２…押圧部、
５３…係合部。 X...Electric latch lock,
1...door frame, 2...door,
3...Lock box, 4...Front,
5... Receiver,
6...Reverse latch,
7...Latch frame,
8A, 8B...Rocking piece,
9...Fixed axis,
10...Return spring,
11...Latch receiver,
12...Reversal prevention member,
15...Movable connection shaft,
19...Mounting base plate,
20...Horizontal support plate,
21...first switch, 22...second switch, 23...switch,
24...lock/unlock lever, 25...brake lever,
26...control unit,
27...power supply, 28...electric motor,
31...Power transmission means, 32...Gear,
35...Cam gear, 36...Gear shaft, 37...Center shaft,
41...power conversion mechanism,
42... Eccentric cam groove, 43... Arc-shaped protrusion portion,
45...engaging pin, 46...roller,
47...Annular outer groove, 48...Outer inclined surface, 49...Inner inclined surface,
50... Slider, 51... Wide plate-shaped part, 52... Pressing part,
53...Engagement part.

Claims

A reversing latch whose tip protrudes from the front of the lock box, a reversing prevention member including a locking piece that prevents the reversing latch from reversing, an electric motor whose start, rotation direction, and stop are controlled by a control section, and the electric motor. A power conversion device consisting of a power transmission means including a gear that transmits the driving force of a motor, a cam gear interlocked with this power transmission means, an eccentric cam groove formed in this cam gear, and an engagement pin that engages with the eccentric cam groove. and a slider in which the rotational motion of the cam gear becomes a linear motion, and when the electric motor is activated when the lock is unlocked, the slider advances toward the reversing latch via the power transmission means and the power conversion mechanism. The electric latch lock releases the locking state of the locking piece against the reversing latch.

In the electric latch lock according to claim 1, the eccentric cam groove of the cam gear extends along an arcuate protrusion portion that gradually swells in the circumferential direction from a part of the outer peripheral surface of the central shaft cylindrical portion of the cam gear. When the cam gear rotates in one direction with respect to the central axis when the lock is unlocked, the engaging pin gradually moves away from the central axis cylindrical part along the arcuate protrusion. Electric latch lock.

In the electric latch lock according to claim 1, one or more switches for detecting the locked state and/or unlocked state of the lock body are disposed in the lock box, and the control section is configured to detect the locked state and/or the unlocked state of the lock body. The electric latch lock is characterized in that the electric power supplied to the electric motor is turned off after acquiring a locking signal or an unlocking signal.

In the electric latch lock according to claim 3, a switch for braking the electric motor is provided, and the control section controls the rotational force of the electric motor after acquiring the braking signal detected by the switch. An electric latch lock characterized by applying a brake to the electric motor by weakening the brake.