JP4051024B2

JP4051024B2 - Security structure of the lock

Info

Publication number: JP4051024B2
Application number: JP2003419588A
Authority: JP
Inventors: 柴原規人
Original assignee: 美和ロック株式会社
Priority date: 2003-12-17
Filing date: 2003-12-17
Publication date: 2008-02-20
Anticipated expiration: 2023-12-17
Also published as: JP2005179944A

Description

本発明は、非常解錠装置などの錠前の防犯構造に関する。 The present invention relates to a security structure for a lock such as an emergency unlocking device.

特許文献１には、「内側にシリンダーを支持したシリンダー筒と、シリンダーに備えられる回動自在な回動片と錠機構部とを連結するコネクターと、シリンダー筒に回動自在に外挿した筒状の非常開ハンドルと、コネクターに設けられ半径方向へ突出するコネクター直結ピンと、非常開ハンドルの内周に移動自在に設けられ、かつコネクター直結ピンに掛止腕を引っ掛けてシリンダー筒への非係合状態を保持する一方、非常開ハンドルの回転によってコネクター直結ピンへの掛止腕の掛止を解除し、付勢手段によって軸線方向に突出してシリンダー筒に係合する逆転防止板を具備した非常解錠装置」が記載されている。 Patent Document 1 states that “a cylinder cylinder that supports a cylinder on the inside, a connector that connects a rotatable rotating piece and a lock mechanism portion provided on the cylinder, and a cylinder that is rotatably attached to the cylinder cylinder. -Shaped emergency opening handle, connector direct connection pin that is provided on the connector and protrudes in the radial direction, and is provided movably on the inner periphery of the emergency opening handle, and a latch arm is hooked on the connector direct connection pin and is not engaged with the cylinder cylinder. While holding the mating state, the emergency opening handle is provided with an anti-reverse prevention plate that releases the latching arm of the latching arm to the connector direct coupling pin by the rotation of the emergency opening handle and protrudes in the axial direction by the urging means to engage the cylinder cylinder "Unlocking device" is described.

上記構成に於いて、シリンダーと錠箱の錠機構部との間に介在するコネクターは、本来、室内側から合鍵をシリンダーに差し込み、該シリンダーの駆動片（回動片）を解錠方向へ操作することにより、又は非常時、シリンダー筒に外嵌合したサムターン機能を有する筒状操作体（非常開ハンドル）を解錠方向へ回すことにより、錠機構部を構成するダルマ等を介してデッドボルトを解錠するものである。
なお、特許文献１は、筒状操作体用ロック手段の逆転防止板４９の先端係合部分が固定側のシリンダー筒５の後端部に突設したＴ字型状のストッパー１９の手前側の壁面と係合している状態の図面（施錠状態を示す図）が存在しないものの、段落００１９からの詳細説明及び図５等を参照にすると、施錠状態から筒状操作体４１が図５で示す矢印ａ方向（つまり、解錠状態）へ回転すると、逆転防止板４９が付勢バネ５３のバネ力に抗して軸線方向へ移動した後に前記ストッパー１９の向こう側の壁面と係合に係合する旨（固定側のストッパー１９に対する逆転防止板９の係合位置が変わる旨）が記載されている。本発明のロック手段は、このような構成及び作用を有する特許文献１を前提とするものである（符号は特許文献１のものである）。 In the above configuration, the connector interposed between the cylinder and the lock mechanism of the lock box is originally designed to insert the key into the cylinder from the indoor side and operate the drive piece (rotating piece) of the cylinder in the unlocking direction. In the event of an emergency, or by turning a cylindrical operating body (emergency opening handle) having a thumb-turn function that is externally fitted to the cylinder cylinder in the unlocking direction, a dead bolt is connected via a dharma or the like constituting the locking mechanism. Is unlocked.
In Patent Document 1, the front-end engaging portion of the reverse rotation prevention plate 49 of the cylindrical operating body locking means projects from the front side of the T-shaped stopper 19 projecting from the rear end portion of the cylinder cylinder 5 on the fixed side. Although there is no drawing of the state engaged with the wall surface (the figure showing the locked state), referring to the detailed description from paragraph 0019 and FIG. 5 and the like, the cylindrical operating body 41 is shown in FIG. 5 from the locked state. When rotating in the direction of the arrow a (that is, unlocked state), the reverse rotation prevention plate 49 moves in the axial direction against the spring force of the urging spring 53 and then engages with the wall surface on the far side of the stopper 19 for engagement. (The engagement position of the reverse rotation prevention plate 9 with respect to the stopper 19 on the fixed side is changed) is described. The locking means of the present invention is based on Patent Document 1 having such a configuration and action (reference numerals are those of Patent Document 1).

しかしながら、近年、泥棒が、例えば扉の外壁面側からシリンダー筒の付近に切削ドリル等の工具で孔を開け、針金を用いてコネクター直結ピンを解錠方向へ回す侵入手口が懸念されている。そこで、防犯上、その対策を講じる必要性が要望されている。
特開２００３−３０１６４２号公報 However, in recent years, there is a concern that a thief may, for example, make a hole with a tool such as a cutting drill in the vicinity of a cylinder cylinder from the outer wall surface side of the door and turn the connector direct connection pin in the unlocking direction using a wire. Therefore, it is necessary to take countermeasures for crime prevention.
JP2003-301642A

本発明の第１の目的は、扉の外壁面側からシリンダー筒の付近に切削ドリル等の工具で孔を開け、針金を用いて合鍵又は筒状操作体の操作力により解錠方向へ回転するコネクターを解錠方向へ回す泥棒の侵入手口に対処することである。第２の目的は、第１の目的を前提にし、侵入工具による筒状操作体の回転を著しく困難にすることである。 A first object of the present invention is to make a hole with a tool such as a cutting drill in the vicinity of a cylinder cylinder from the outer wall surface side of the door, and to rotate in the unlocking direction using a key or an operating force of a cylindrical operating body using a wire. It is to deal with the intrusion technique of the thief turning the connector in the unlocking direction. The second object is based on the premise of the first object, and makes it difficult to rotate the cylindrical operating body with the intruding tool.

本発明の錠前の防犯構造は、固定側のシリンダー筒３と、このシリンダー筒３に内装されたシリンダー２と、このシリンダー２と錠箱内の錠機構部との間に介在するように前記シリンダー筒に内装され、かつ該シリンダー筒の周方向の案内長孔と係合する可動ピン７を有する可動側のコネクター５と、前記シリンダー筒に回動自在に外挿し、該シリンダー筒の外周に設けたストッパー１８に係合する筒状操作体６用ロック手段を備えると共に、前記可動ピン７と係合する切欠状制御係合部２４を有する筒状操作体６とから成り、前記ロック手段の逆転防止板９が前記ストッパーに係合している施錠状態から前記筒状操作体が解錠状態へ回転すると、逆転防止板９が付勢バネ１０のバネ力に抗して軸線方向へ移動した後に前記ストッパーに対する逆転防止板９の係合位置が変わる錠前の防犯構造であって、前記操作体６のコネクター５を制御する筒状制御部６ａに、可動ピン用切欠状制御係合部２４を遮蔽する筒状防御体１５を外嵌合したことを特徴とする。 The security structure of the lock according to the present invention is such that the cylinder cylinder 3 on the fixed side, the cylinder 2 housed in the cylinder cylinder 3, and the cylinder 2 are interposed between the cylinder 2 and the lock mechanism portion in the lock box. A movable-side connector 5 having a movable pin 7 that is internally mounted in the cylinder and engages with a guide slot in the circumferential direction of the cylinder cylinder, and is rotatably attached to the cylinder cylinder and provided on the outer periphery of the cylinder cylinder was provided with a locking means for the cylindrical operation member 6 that engages with the stopper 18, made of cylindrical operation member 6 and having a notch-like control engagement portion 24 that engages the movable pin 7, reversal of the locking means When the cylindrical operating body rotates from the locked state in which the prevention plate 9 is engaged with the stopper to the unlocked state, the reverse rotation prevention plate 9 moves in the axial direction against the spring force of the biasing spring 10. Against the stopper A crime prevention structure of the lock engagement position of the reverse rotation preventing plate 9 is changed, the cylindrical control portion 6a controls the connectors 5 of the operating body 6, a cylindrical shielding the movable pin notch-like control engagement portion 24 The protective body 15 is externally fitted.

上記構成に於いて、筒状操作体６Ａとシリンター筒１Ａとをストッパー手段３１を介して一体的に固定したことを特徴とする。また、錠前の防犯構造は、操作体を包囲するカバー１２を備え、該カバー１２Ａと筒状操作体６Ａとをストッパー手段３１を介して一体的に固定したことを特徴とする。 In the above-described configuration, the cylindrical operation body 6A and the sinter cylinder 1A are integrally fixed via the stopper means 31. The security structure of the lock includes a cover 12 surrounding the operation body, and the cover 12A and the cylindrical operation body 6A are integrally fixed via a stopper means 31.

（１）泥棒が扉の外壁面側から針金を用いて筒状操作体を解錠方向へ回そうとしても、該操作体の筒状制御部に、その切欠状制御係合部を遮蔽する筒状防御体が外嵌合しているので、コネクターの可動ピンを操作することができない。したがって、防犯効果に優れている。
（２）侵入工具による筒状操作体の回転を著しく困難である。 (1) Even if a thief tries to turn the cylindrical operating body in the unlocking direction using a wire from the outer wall surface side of the door, the cylindrical control section of the operating body shields the notch-shaped control engaging section. Since the protective body is externally fitted, the movable pin of the connector cannot be operated. Therefore, the crime prevention effect is excellent.
(2) It is extremely difficult to rotate the cylindrical operation body with the intrusion tool.

（１）主たる発明と従たる発明
まず、本発明の錠前の一例としての非常解錠装置の防犯構造は、シリンダー２と錠箱１４の錠機構部との間に介在するコネクター５の可動ピン７が扉１３の外壁面１３ａから侵入する工具（例えば針金）によって操作されないように、固定側のシリンダー筒３に外嵌合した筒状操作体（例えば非常開ハンドル）６に筒状防御体１５を外嵌合したことである（主たる発明）。また、回動自在な筒状操作体６Ａが前記工具によって自由に操作されないように、固定部材としてのシリンター筒３Ａ又は／及び箱状カバー１２Ａと筒状操作体６Ａとをストッパー手段３１を介して一体的に連結したことである（従たる発明）。 (1) Main Invention and Subordinate Invention First, the security structure of the emergency unlocking device as an example of the lock of the present invention is the movable pin 7 of the connector 5 interposed between the cylinder 2 and the lock mechanism portion of the lock box 14. Is prevented from being operated by a tool (for example, a wire) entering from the outer wall surface 13 a of the door 13, the cylindrical protective body 15 is attached to the cylindrical operating body (for example, an emergency opening handle) 6 that is externally fitted to the cylinder cylinder 3 on the fixed side. It is that it was fitted outside (main invention). Further, the cylindrical cylinder 3A as a fixing member and / or the box-shaped cover 12A and the cylindrical operator 6A are provided via the stopper means 31 so that the rotatable cylindrical operator 6A is not freely operated by the tool. It is connected integrally (subject invention).

（２）明細書の技術的用語
実施の環境の説明は第１発明のみならず第２発明にもあてはまる。実施の環境は背景技術の特許文献１と同じなので、明細書の技術的用語は特許文献１のそれと同一又は同様の用語を使用する。また、本発明の特定要件に直接関係ない部材については、詳論を極力割愛する。次に本発明の主要部の構成を具体的に説明する。 (2) Technical terms in the description The description of the implementation environment applies not only to the first invention but also to the second invention. Since the implementation environment is the same as that of Patent Document 1 of the background art, the technical terms used in the specification are the same as or similar to those of Patent Document 1. In addition, detailed descriptions of members that are not directly related to the specific requirements of the present invention are omitted as much as possible. Next, the configuration of the main part of the present invention will be specifically described.

（３）発明の実施の環境
図１乃至図１０は本発明の第１実施例である。図１を参照にして本発明の実施の環境を説明する。この非常解錠装置１は、内周壁にシリンダー２を支持したシリンダー筒３と、駆動片４を備えたシリンダー２と錠箱１４内の錠機構部との間に介在する短円柱状のコネクター（回転体）５と、シリンダー筒３に回動自在に外挿した筒状非常開ハンドル（操作体）６と、この非常開ハンドル６の周方向の切欠状制御係合部２４と係合するように前記コネクター５に固定的に設けられたコネクター直結ピン（可動ピン）７と、前記非常開ハンドル６とシリンダー筒３との間に設けられ、かつ非常開ハンドルを解錠方向へ所定量回すとシリンダー筒に係止される逆転防止板９及び付勢バネ１０を備えたロック手段１１と、非常開ハンドル６を全体或いは部分的に包囲するカバー１２と、コネクター５の直結ピン（可動ピン）７が扉１３の外壁面１３ａ或いは錠箱（特にプロテクターの存在しないもの）１４側から侵入する工具（例えば針金）によって操作されないように非常開ハンドル６に外嵌合した筒状防御体１５とから構成されている。以下、これらの構成部材を中心に説明する。 (3) Environment for Implementing the Invention FIGS. 1 to 10 show a first embodiment of the present invention. The environment for implementing the present invention will be described with reference to FIG. This emergency unlocking device 1 includes a cylinder 3 having a cylinder 2 supported on an inner peripheral wall, a short cylindrical connector (between a cylinder 2 having a driving piece 4 and a lock mechanism in a lock box 14 ( (Rotary body) 5, a cylindrical emergency opening handle (operating body) 6 rotatably attached to the cylinder cylinder 3, and a circumferential cut-out control engagement portion 24 of the emergency opening handle 6. When a connector direct connection pin (movable pin) 7 fixed to the connector 5 is provided between the emergency opening handle 6 and the cylinder cylinder 3, and the emergency opening handle is turned by a predetermined amount in the unlocking direction. Locking means 11 having a reverse rotation prevention plate 9 and an urging spring 10 locked to the cylinder cylinder, a cover 12 surrounding the emergency opening handle 6 in whole or in part, and a direct connection pin (movable pin) 7 of the connector 5 Is the outer wall surface 13 of the door 13 Or lock box and a (particularly the absence of protector) tool entering from 14 side (e.g., wire) fitted to the very open handle 6 from being operated by the combined tubular protective member 15. Hereinafter, these components will be mainly described.

（４）非常扉１３、錠箱１４、シリンダー２など
まず、非常用の扉１３の内部には錠機構部を有する錠箱１４が設けられている。錠箱１４の錠機構部は、入力部材（ダルマ）を介してデッドボルトを進退させ、これにより非常扉１３の解錠を可能とする。非常扉１３は、錠箱１４に対して回転不能（固定）となったシリンダー筒３を直接又は間接的に備えている。なお、シリンダー筒３は、非常扉１３又は錠箱１４に固定される。 (4) Emergency door 13, lock box 14, cylinder 2, etc. First, inside the emergency door 13, a lock box 14 having a lock mechanism is provided. The lock mechanism portion of the lock box 14 advances and retracts the dead bolt via an input member (Dharma), thereby enabling the emergency door 13 to be unlocked. The emergency door 13 is directly or indirectly provided with the cylinder cylinder 3 which is not rotatable (fixed) with respect to the lock box 14. The cylinder cylinder 3 is fixed to the emergency door 13 or the lock box 14.

図１で示すように、シリンダー筒３は内周壁にシリンダー２を支持している。シリンダー筒３の先端には、内筒２ａ表出用の孔を穿設してあり、この内筒表出孔からはシリンダー２の内筒２ａが表出する。シリンダー２は、内筒２ａの表出端面にキー挿入孔を有している。また内筒２ａは、合鍵をキー挿入孔に挿入操作することにより回動する。該駆動力はシリンダー２の後端から突出する駆動片４に出力される。駆動片４は、内筒２ａ及び外筒２ｂに対して回動自在である。 As shown in FIG. 1, the cylinder cylinder 3 supports the cylinder 2 on the inner peripheral wall. A hole for exposing the inner cylinder 2a is formed at the tip of the cylinder cylinder 3, and the inner cylinder 2a of the cylinder 2 is exposed from the inner cylinder exposing hole. The cylinder 2 has a key insertion hole on the exposed end surface of the inner cylinder 2a. Further, the inner cylinder 2a rotates by inserting the key into the key insertion hole. The driving force is output to a driving piece 4 protruding from the rear end of the cylinder 2. The drive piece 4 is rotatable with respect to the inner cylinder 2a and the outer cylinder 2b.

（５）シリンダー筒３
シリンダー筒（例えばサムターン取付け筒）３は、本実施例では一端部側が扉１３の内壁面１３ｂから突出し、一方、他端部が錠箱１４の幅広側壁に形成した嵌合孔に嵌合するように扉１３に固定される。 (5) Cylinder tube 3
In the present embodiment, the cylinder cylinder (for example, thumb turn mounting cylinder) 3 protrudes from the inner wall surface 13b of the door 13 at one end side, and fits into a fitting hole formed at the wide side wall of the lock box 14 at the other end. Fixed to the door 13.

シリンダー筒３の構成について、図７の底部側を示す斜視図を基準にして説明する。シリンダー筒３は、長筒状の中空胴部３ａと、この中空胴部３ａの先端部側の開口を一部塞ぐ環状部３ｂとから成る。 The configuration of the cylinder tube 3 will be described with reference to a perspective view showing the bottom side of FIG. The cylinder cylinder 3 is composed of a long cylindrical hollow body 3a and an annular part 3b that partially closes the opening on the distal end side of the hollow body 3a.

しかして、１７，１７は中空胴部３ａの後端部外周壁の一部に対称的に突設された嵌合突起で、これらの嵌合突起１７，１７は、前述した錠箱１４の嵌合孔に嵌合する。１８は前記嵌合突起１７の一つ、或いは中空胴部３ａの後端部外周壁に小突起状に設けられたストッパー部で、このストッパー部１８は、扉１３の開き勝手が「左勝手」又は「右勝手」の場合に於いて、作動したロック手段１１の逆転防止板９の回転を阻止する。 Thus, 17 and 17 are fitting projections symmetrically provided on a part of the outer peripheral wall of the rear end portion of the hollow body 3a, and these fitting projections 17 and 17 are fitted to the lock box 14 described above. Fits into the hole. Reference numeral 18 denotes one of the fitting protrusions 17 or a stopper portion provided in the shape of a small protrusion on the outer peripheral wall of the rear end portion of the hollow body portion 3a. Alternatively, in the case of “right-handed”, the rotation of the reverse rotation prevention plate 9 of the operated lock means 11 is prevented.

１９はストッパー部１８を基準にして中空胴部３ａの後端部外周壁の一部に弧状に形成された案内長孔で、この案内長孔１９は、本実施例では扉１３に対する取付け状態に於いて、中空胴部３ａの底面側に形成されている（図１参照）。本実施例では、案内長孔１９は嵌合突起１７の内壁面の略中央部に突起状に形成されたストッパー部１８の前方直下に位置するように中空胴部３ａの周方向に弧状に形成されている。なお、中空胴部３ａには、左勝手、右勝手を考慮し、ストッパーピン用選択取付け孔を適宜に形成しても良い。その他細部の構成は割愛する。 Reference numeral 19 denotes a guide elongated hole formed in an arc shape in a part of the outer peripheral wall of the rear end portion of the hollow barrel portion 3a with reference to the stopper portion 18, and this guide elongated hole 19 is attached to the door 13 in this embodiment. However, it is formed on the bottom side of the hollow body 3a (see FIG. 1). In this embodiment, the guide long hole 19 is formed in an arc shape in the circumferential direction of the hollow body 3a so as to be located immediately below the stopper portion 18 formed in the shape of a protrusion at the substantially central portion of the inner wall surface of the fitting protrusion 17. Has been. The hollow body 3a may be appropriately formed with a stopper pin selective mounting hole in consideration of the left hand and right hand. Other details are omitted.

（６）コネクター５とコネクター直結ピン７
コネクター５は、駆動片４又は非常開ハンドル６の駆動（操作）力により解錠方向へ回転する回転体である。コネクター５は、半径方向の外側に突出するコネクター可動ピン（直結ピン）７を有する。可動ピン７は、非常開ハンドル６の案内長孔１９と係合するようにコネクター５のメネジ部５ｃに固定的に取付けられる。 (6) Connector 5 and connector direct connection pin 7
The connector 5 is a rotating body that rotates in the unlocking direction by the driving (operating) force of the driving piece 4 or the emergency opening handle 6. The connector 5 has a connector movable pin (direct connection pin) 7 protruding outward in the radial direction. The movable pin 7 is fixedly attached to the female screw portion 5 c of the connector 5 so as to engage with the guide long hole 19 of the emergency opening handle 6.

このコネクター直結ピン７は、シリンダー筒３の案内長孔（ガイド穴）１９を介してシリンダー筒３の外周面から突出する。したがって、合鍵の操作力によりコネクター５が回動すると、コネクター直結ピン７は、ガイド穴１９に沿ってシリンダー筒３の周方向を往復移動する反面、コネクター５は、非常時、非常開ハンドル６を操作すると、コネクター直結ピン７を介して解錠方向へ回転する。 The connector direct connection pin 7 protrudes from the outer peripheral surface of the cylinder tube 3 through a guide long hole (guide hole) 19 of the cylinder tube 3. Therefore, when the connector 5 is rotated by the operation force of the key, the connector direct connection pin 7 reciprocates in the circumferential direction of the cylinder tube 3 along the guide hole 19, whereas the connector 5 has the emergency opening handle 6 in an emergency. When operated, it rotates in the unlocking direction via the connector direct connection pin 7.

コネクター５は、図７で示すように、シリンダー２側の前端面にシリンダー２の駆動片４が嵌入する直径方向の嵌入溝５ａを有する。また、図１０で示すように、コネクター５の後端面に錠箱１４内の錠機構部を構成する図示しないダルマに相対回転不能に係合する十字状の出力軸２２を有している。なお、特に図示しないが、コネクター５は、シリンダー筒３の後端内周に形成した固定溝に嵌着した固定リングによって、シリンダー筒３の後端からの脱落が防止されている。 As shown in FIG. 7, the connector 5 has a fitting groove 5a in the diametrical direction in which the drive piece 4 of the cylinder 2 is fitted on the front end surface on the cylinder 2 side. As shown in FIG. 10, the rear end face of the connector 5 has a cross-shaped output shaft 22 that engages with a dharma (not shown) constituting a lock mechanism in the lock box 14 so as not to be relatively rotatable. Although not particularly shown, the connector 5 is prevented from dropping from the rear end of the cylinder tube 3 by a fixing ring fitted in a fixing groove formed in the inner periphery of the rear end of the cylinder tube 3.

（７）非常開ハンドル：操作体６
シリンダー筒３の外周には、筒状の非常開ハンドル６が外挿されている。非常開ハンドル６の形態は特に問わないが、本実施例では、外周前端の上下面に、略三角板形状の指掛板部が突設されている。この非常開ハンドル６は、図４及び図５で示すようにシリンダー筒３の中空胴部３ａに回転可能に装着される筒状制御部６ａと、この筒状制御部６ａの外端部の外周壁に突設された操作部６ｂとから成る。 (7) Emergency open handle: Operating body 6
A cylindrical emergency opening handle 6 is externally inserted on the outer periphery of the cylinder tube 3. Although the form of the emergency opening handle 6 is not particularly limited, in this embodiment, a substantially triangular plate-shaped finger hanging plate portion protrudes from the upper and lower surfaces of the front end of the outer periphery. As shown in FIGS. 4 and 5, the emergency opening handle 6 includes a cylindrical control unit 6a that is rotatably mounted on the hollow body 3a of the cylinder tube 3, and an outer periphery of the outer end of the cylindrical control unit 6a. It consists of the operation part 6b protrudingly provided on the wall.

しかして、２４は筒状制御部６ａの内端部の外周壁に周方向に沿って一部形成された制御係合部（例えば長孔、切欠部など）で、この制御係合部２４は、図４を基準にすると、上方の左右にはコネクターの可動ピン７用の押圧面２４ａ、２４ａが見える。なお、筒状制御部６ａは、本実施例では１個であるが、反対側の外周壁にも形成しても良い。 Thus, 24 is a control engagement portion (for example, a long hole, a notch portion, etc.) partially formed along the circumferential direction on the outer peripheral wall of the inner end portion of the cylindrical control portion 6a. 4, pressing surfaces 24a and 24a for the movable pin 7 of the connector can be seen on the upper left and right. In addition, although the cylindrical control part 6a is one in a present Example, you may form also in the outer peripheral wall on the opposite side.

また非常開ハンドル６は、内端部の内周壁に逆転防止板９の形状に適合する単数又は複数個の装着溝（案内溝）２６，２６を有する。これらの案内溝２６，２６は、図５で示すように、例えば周方向に一部形成された第１遊嵌合溝と、この第１遊嵌合溝と直交する第２嵌合溝とから成り、逆転防止板９をシリンダー筒３のストッパー部１８に対して係脱する方向にそれぞれ案内する。なお、前記第２嵌合溝は、逆転防止板９の係合爪部が突出できるように内端面まで至っている。 Further, the emergency opening handle 6 has one or a plurality of mounting grooves (guide grooves) 26, 26 adapted to the shape of the reverse rotation preventing plate 9 on the inner peripheral wall of the inner end portion. As shown in FIG. 5, the guide grooves 26 and 26 include, for example, a first free fitting groove partially formed in the circumferential direction and a second fitting groove orthogonal to the first free fitting groove. The reverse rotation prevention plate 9 is guided in a direction to be engaged with and disengaged from the stopper portion 18 of the cylinder tube 3. The second fitting groove extends to the inner end surface so that the engagement claw portion of the reverse rotation prevention plate 9 can protrude.

ところで、非常開ハンドル６の筒状制御部６ａの後端部外周壁は、図１で示すように断面段差状に形成され、この断面段差状の嵌合部に筒状防御体１５が外嵌合する。 By the way, the outer peripheral wall of the rear end portion of the cylindrical control portion 6a of the emergency opening handle 6 is formed in a stepped section as shown in FIG. 1, and the cylindrical protective body 15 is externally fitted to the fitting portion having the stepped section. Match.

（８）ロック手段１１
ロック手段１１は、前述したように、逆転防止板９と、これを常時一方向（非常開ハンドル６の後端側から突出する方向）に付勢する付勢バネ１０とから成る。逆転防止板９は略Ｔ字状に形成され、バー状当接部と掛止腕９ａを有している。また逆転防止板９は、非常開ハンドル６の内周に軸線方向へ移動自在に設けられている。ロック手段１１の構成及び作用は、特許文献１のロック手段の作用（段落０００３）と同じである。

すなわち、非常時には、非常用の扉を開ける必要があるので、ロック手段１１の施錠状態を解く必要があるが、非常事態の解錠時、非常開ハンドル６の回転によってコネクター直結ピンへ７の掛止腕９ａの掛止を解除し、付勢手段１０によってシリンダー筒３の軸線方向に突出する。この点について、付言すると、例えば室内側から筒状操作体（非常開ハンドル）６を解錠方向へと回すと、筒状操作体６の切欠状制御部の切欠端面２４ａ及び該切欠端面２４ａに係合するコネクター直結ピン（可動ピン）７を介してコネクター５も解錠方向に回転する訳であるが、この時、筒状操作体６と共に周方向に回転する逆転防止板９は、回転途中、コネクター直結ピン７を介して付勢バネ１０のバネ力に抗して、かつ案内溝２６を介して固定側のストッパー１８から離れる方向へと後退動してシリンダー筒３への非係合状態を保持し（図８の状態）、さらに筒状操作体６が図９で示すように解錠位置へと至ると、付勢バネ１０のバネ力により固定側のストッパー１８の向こう側の壁面に係合するように前進してストッパーに対する逆転防止板９の係合位置が変わる。 (8) Locking means 11
As described above, the lock unit 11 includes the reverse rotation prevention plate 9 and the urging spring 10 that constantly urges the reverse rotation plate 9 in one direction (direction protruding from the rear end side of the emergency opening handle 6). The reverse rotation prevention plate 9 is formed in a substantially T shape, and has a bar-shaped contact portion and a latch arm 9a. The reverse rotation prevention plate 9 is provided on the inner periphery of the emergency opening handle 6 so as to be movable in the axial direction. The configuration and action of the locking means 11 are the same as the action of the locking means of Patent Document 1 (paragraph 0003).

That is, in an emergency, it is necessary to open the emergency door, so it is necessary to unlock the lock means 11. However, when the emergency is unlocked, the emergency opening handle 6 is rotated so that the connector direct connection pin 7 is hooked. The latching of the retaining arm 9 a is released and the urging means 10 projects in the axial direction of the cylinder tube 3. With regard to this point, for example, when the cylindrical operating body (emergency opening handle) 6 is turned in the unlocking direction from the indoor side, for example, the notch end surface 24a of the notched control portion of the cylindrical operating body 6 and the notch end surface 24a. The connector 5 also rotates in the unlocking direction via the connector direct connection pin (movable pin) 7 to be engaged. At this time, the reverse rotation prevention plate 9 that rotates in the circumferential direction together with the cylindrical operating body 6 is in the middle of rotation. In the non-engaged state with the cylinder cylinder 3 by moving backward against the spring force of the biasing spring 10 via the connector direct connection pin 7 and away from the stopper 18 on the fixed side via the guide groove 26 When the cylindrical operating body 6 reaches the unlocked position as shown in FIG. 9, the spring force of the urging spring 10 causes the wall on the opposite side of the stopper 18 on the fixed side. Move forward to engage and reverse against stopper Engaged position preventing plate 9 is changed.

（９）カバー１２
筒状カバー１２は、本実施例では、非常開ハンドル６の全体に包囲する。筒状カバー１２の外壁面の形態は特に問わないが、外周壁１２ａの断面が水平よりも多少傾斜状であるのが望ましい。また、外周壁１２ａと交差する垂直前壁１２ｂの適宜箇所には、逆転防止板９の施錠又は解除状態を識別する識別標識Ｍが見える表示窓１２ｃが形成されている。 (9) Cover 12
The cylindrical cover 12 surrounds the entire emergency opening handle 6 in this embodiment. Although the form of the outer wall surface of the cylindrical cover 12 is not particularly limited, it is desirable that the cross section of the outer peripheral wall 12a is slightly inclined from the horizontal. In addition, a display window 12c is formed at an appropriate location on the vertical front wall 12b intersecting with the outer peripheral wall 12a so that an identification mark M for identifying the locked or released state of the reverse rotation preventing plate 9 can be seen.

（１０）筒状防御体１５
さて、筒状防御体１５が本発明の要部である。筒状防御体１５は、図４、図６等で示すように筒状に形成され、コネクター５の可動ピン（直結ピン）７が扉１３の外壁面１３ａ或いは錠箱１４側から侵入する工具（例えば針金）によって操作されないように非常開ハンドル６に外嵌合している。 (10) Cylindrical defense 15
Now, the cylindrical defense 15 is a main part of the present invention. The cylindrical defense body 15 is formed in a cylindrical shape as shown in FIGS. 4, 6, etc., and the movable pin (directly connected pin) 7 of the connector 5 enters from the outer wall surface 13 a of the door 13 or the lock box 14 side ( For example, the emergency opening handle 6 is externally fitted so as not to be operated by a wire).

筒状防御体１５の材質は特に問わないが、本実施例では、軸方向にスリット状の切欠部１６が形成されている。筒状防御体１５は、シリンダー筒３の断面段差状の嵌合部に後端面から嵌め込むので、材質自体に多少の弾性力があるのが望ましい。 Although the material of the cylindrical defense body 15 is not particularly limited, in this embodiment, a slit-shaped cutout portion 16 is formed in the axial direction. Since the cylindrical defense body 15 is fitted into the fitting portion having a stepped cross section of the cylinder cylinder 3 from the rear end surface, it is desirable that the material itself has some elasticity.

しかし、弾性力を付与しない場合には、炭素綱を焼き入れ処理して形成された硬質防御部材であっても良い。図１及び図５で示すように、筒状防御体１５を非常開ハンドル６に後端部に嵌め込むと、非常開ハンドル６の切欠状制御部２４は完全に遮蔽される。 However, when the elastic force is not applied, a hard defense member formed by quenching carbon steel may be used. As shown in FIGS. 1 and 5, when the cylindrical protective body 15 is fitted to the rear end portion of the emergency opening handle 6, the cutout control portion 24 of the emergency opening handle 6 is completely shielded.

（１１）第１実施例の効果
したがって、泥棒が、扉の外壁面から侵入する工具（例えば針金）を差し込んで、可動ピン７を介してコネクター５を解錠方向へ回そうとしても、筒状防御体１５が障害となる。なお、非常時、非常解錠装置１の解錠する場合には、カバー１２を破壊し、非常開ハンドル６を解錠方向へ回す。 (11) Effects of the first embodiment Therefore, even if the thief inserts a tool (for example, a wire) that enters from the outer wall surface of the door and tries to turn the connector 5 in the unlocking direction via the movable pin 7, it is cylindrical. The defense 15 becomes an obstacle. In an emergency, when the emergency unlocking device 1 is unlocked, the cover 12 is broken and the emergency opening handle 6 is rotated in the unlocking direction.

（１２）図１１乃至図１３は本発明の第２実施例である。 (12) FIGS. 11 to 13 show a second embodiment of the present invention.

第２実施例は、第１実施例の主要部をそのまま含むので、本明細書に記載する。第２実施例は、前述したように、回動自在な筒状防御体が工具によって自由に操作されないように、固定部材としてのシリンター筒又は／及び箱状カバーと筒状防御体とをストッパー手段３１を介して一体的に連結している。 The second embodiment includes the main part of the first embodiment as it is, and is described in this specification. In the second embodiment, as described above, the cylindrical cylinder as a fixing member and / or the box-shaped cover and the cylindrical protective body are used as stopper means so that the rotatable cylindrical protective body is not freely operated by a tool. They are integrally connected via 31.

したがって、第１実施例の構成と同一の部分には同一又は同様の符号を付し、重複する説明を省略する。そこで、１Ａは錠前、１２Ａはカバー、６Ａは操作体（非常開ハンドル）、３Ａはシリンダー筒、３１はストッパー手段である。 Therefore, the same or similar reference numerals are given to the same parts as those of the first embodiment, and the duplicate description is omitted. Therefore, 1A is a lock, 12A is a cover, 6A is an operating body (emergency opening handle), 3A is a cylinder cylinder, and 31 is a stopper means.

しかして、前記カバー１２Ａの外周壁１２ａ及び非常開ハンドル６Ａの筒状制御部６ａにはストッパー手段３１用の貫通孔３２、３３がそれぞれ形成されていると共に、シリンダー筒３Ａの中空胴部３ａにはストッパー手段３１が螺合するメネジ３４が形成されている。 Through holes 32 and 33 for the stopper means 31 are formed in the outer peripheral wall 12a of the cover 12A and the cylindrical control portion 6a of the emergency opening handle 6A, respectively, and in the hollow barrel portion 3a of the cylinder barrel 3A. Is formed with a female thread 34 into which the stopper means 31 is screwed.

この第２実施例では、図１３で示すように、カバー１２Ａと、非常開ハンドル６Ａと、シリンダー筒３Ａとがストッパー手段３１の一例としてのオネジで一体的に固定されているので、非常開ハンドル６Ａを工具により解錠方向へ回転させることが非常に困難となる。 In the second embodiment, as shown in FIG. 13, the cover 12A, the emergency opening handle 6A, and the cylinder cylinder 3A are integrally fixed by a male screw as an example of the stopper means 31, and therefore the emergency opening handle It becomes very difficult to rotate 6A in the unlocking direction with a tool.

発明の実施の形態で示した第２実施例に於いて、（１）筒状操作体６Ａとシリンター筒３Ａとをストッパー手段３１を介して一体的に固定しても良い。（２）また箱状カバー１２Ａと筒状操作体６Ａとをストッパー手段３１を介して一体的に固定しても良い。 In the second embodiment shown in the embodiment of the invention, may be fixed integrally via the stopper means 31 and (1) the cylindrical operation member 6A and Shirinta cylinder 3 A. (2) The box-shaped cover 12 </ b> A and the cylindrical operation body 6 </ b> A may be integrally fixed via the stopper means 31.

本発明は、非常解錠装置などの錠前の防犯構造であるから、主に錠前や建具業界で利用される。 Since the present invention is a security structure for a lock such as an emergency unlocking device, it is mainly used in the locksmith and joinery industries.

図１乃至図１０は本発明の第１実施例を示す各概略説明図、図１１乃至図１３は本発明の第２実施例を示す各概略説明図。
第１実施例の概略断面説明図。正面視からの概略説明図。正面視からの概略断面説明図。主要部材を含む斜視図。主要部材（操作体を底面部からみた）斜視図。主要部材の組み合わせの斜視図。要部（シリンター筒、コネクター）の斜視図。シリンター筒、可動ピン、ロック手段の概略説明図。操作体を解錠方向へ回した時の説明図。要部（コネクター）の斜視図。第１実施例の概略断面説明図。主要部材を含む斜視図。正面視からの概略断面説明図。 1 to 10 are schematic explanatory views showing a first embodiment of the present invention, and FIGS. 11 to 13 are schematic explanatory views showing a second embodiment of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS Schematic cross-sectional explanatory drawing of 1st Example. Schematic explanatory drawing from the front view. Schematic cross-sectional explanatory drawing from a front view. The perspective view containing a main member. The main member (the operation body is seen from the bottom surface) perspective view. The perspective view of the combination of a main member. The perspective view of the principal part (a sinter cylinder, a connector). Schematic explanatory drawing of a cylinder cylinder, a movable pin, and a lock means. Explanatory drawing when an operation body is turned to the unlocking direction. The perspective view of the principal part (connector). BRIEF DESCRIPTION OF THE DRAWINGS Schematic cross-sectional explanatory drawing of 1st Example. The perspective view containing a main member. Schematic cross-sectional explanatory drawing from a front view.

Explanation of symbols

１．１Ａ…非常解錠装置、２…シリンダー、３．３Ａ…シリンダー筒、５…コネクター、６．６Ａ…非常開ハンドル（操作体）、７…可動ピン（直結ピン）、９…逆転防止板、１０…付勢バネ、１１…ロック手段、１２．１２Ａ…カバー、１３…扉、１３ａ…扉外壁面、１４…錠箱、１７…嵌合突起、１８…ストッパー部、１９…案内長孔、２４…制御係合部、２４ａ…可動ピン７用の押圧面、２６…案内溝、３１…ストッパー手段、３２．３３…貫通孔、３４…メネジ。 1.1A ... Emergency unlocking device, 2 ... Cylinder, 3.3A ... Cylinder cylinder, 5 ... Connector, 6.6A ... Emergency opening handle (operating body), 7 ... Movable pin (directly connected pin), 9 ... Reverse rotation prevention plate DESCRIPTION OF SYMBOLS 10 ... Biasing spring 11 ... Locking means 12.12A ... Cover, 13 ... Door, 13a ... Door outer wall surface, 14 ... Lock box, 17 ... Fitting protrusion, 18 ... Stopper part, 19 ... Guide long hole, 24 ... Control engaging portion, 24a ... Pressing surface for the movable pin 7, 26 ... Guide groove, 31 ... Stopper means, 32.33 ... Through hole, 34 ... Female screw.

Claims

A cylinder cylinder 3 on the fixed side, a cylinder 2 installed in the cylinder cylinder 3, and the cylinder cylinder so as to be interposed between the cylinder 2 and a lock mechanism in the lock box, and the cylinder cylinder A movable connector 5 having a movable pin 7 that engages with a circumferential guide slot, and a cylindrical shape that is rotatably inserted in the cylinder cylinder and engages with a stopper 18 provided on the outer periphery of the cylinder cylinder. It comprises a cylindrical operating body 6 having a locking means for the operating body 6 and having a notched control engaging portion 24 that engages with the movable pin 7, and the reverse rotation preventing plate 9 of the locking means is engaged with the stopper. When the cylindrical operating body rotates from the locked state to the unlocked state, the reverse rotation prevention plate 9 moves in the axial direction against the spring force of the urging spring 10 and then the reverse rotation prevention plate 9 is engaged with the stopper. Alignment position is A crime prevention structure Waru lock, the cylinder control unit 6a for controlling the connector 5 of the operating body 6, to a cylindrical protective member 15 for shielding the movable pin notch-like control engagement portion 24 has an outer engaged The security structure of the lock characterized by

2. The security structure for a lock according to claim 1, wherein the lock is attached to an emergency door .

2. A security structure for a lock according to claim 1, wherein the cylindrical operating body 6A and the sinter cylinder 1A are integrally fixed via the stopper means 31.

The security structure according to claim 1, wherein the security structure of the lock includes a cover 12 surrounding the operating body, and the cover 12A and the cylindrical operating body 6A are integrally fixed via a stopper means 31. Security structure of the lock.