JP7024293B2

JP7024293B2 - Door lock device

Info

Publication number: JP7024293B2
Application number: JP2017191470A
Authority: JP
Inventors: 一寿横田; 隆太池田
Original assignee: Itoki Corp
Current assignee: Itoki Corp
Priority date: 2017-09-29
Filing date: 2017-09-29
Publication date: 2022-02-24
Anticipated expiration: 2037-09-29
Also published as: JP2019065563A

Description

本発明は、開閉扉の施錠装置に係わり、更に詳しくはキャビネット筐体等の開口部を開閉する開閉扉の施錠装置に関するものである。 The present invention relates to an opening / closing door locking device, and more particularly to an opening / closing door locking device that opens / closes an opening such as a cabinet housing.

従来からキャビネット筐体等の開口部を開閉する開閉扉、あるいは引出しの前板に施錠具を設け、施錠操作によって突出するデッドボルトを筐体の側框に設けた係合孔に係合させてロックする構造の施錠装置は各種提供されている。ところが、開閉扉を開いた状態、若しくは引出しを引き出した状態で、前記施錠具を施錠操作してデッドボルトが突出すると、そのまま開閉扉を閉じる、若しくは引出しを押し込み格納すれば、デッドボルトが筐体の側框に衝突し、該側框を傷つける、デッドボルトを損傷するなどの問題が生じる。 Conventionally, a lock is provided on the opening / closing door that opens and closes the opening of the cabinet housing, or the front plate of the drawer, and the dead bolt that protrudes by the locking operation is engaged with the engagement hole provided on the side frame of the housing. Various locking devices with a locking structure are provided. However, if the open / close door is open or the drawer is pulled out and the dead bolt protrudes by locking the locking tool, the open / close door is closed or the drawer is pushed in and stored, and the dead bolt becomes a housing. The door collides with the side stile, causing problems such as damaging the side stile and damaging the dead bolt.

尚、鍵穴の周囲に、施錠状態か解錠状態かを色で区別できる表示部を設けた施錠具も存在するが、根本的な解決にはならない。また、施錠具が施錠状態でも、扉を閉じたり、引出しを押し込み格納できる場合には、扉や引出しがロックされてないにも係わらず、ロックされていると誤認識されることもあり、いわゆる擬似ロックの状態が生じるのはセキュリティ上問題である。 There is also a locking tool that has a display unit that can distinguish between the locked state and the unlocked state by color around the keyhole, but this is not a fundamental solution. In addition, even if the lock tool is locked, if the door can be closed or the drawer can be pushed in and stored, it may be mistakenly recognized as locked even though the door or drawer is not locked, so-called. It is a security problem that a pseudo-lock state occurs.

この改善策として、特許文献１、２には、扉や引出し前板に、閉じたときに筐体の側框に接触して没入するように、突出方向へ弾性付勢したエラーガードを設け、開いた状態ではエラーガードが扉や引出し前板から突出すると同時にデッドボルトが解錠状態から施錠状態へ移行しないように当接規制し、閉じた状態ではエラーガードが没入してデッドボルトが解錠状態から施錠状態へ移行することを許容する位置まで変位するように構成した鍵の誤作動防止装置が開示されている。 As a remedy for this, Patent Documents 1 and 2 are provided with an error guard elastically urged in the protruding direction so that the door and the front plate of the drawer come into contact with the side stile of the housing when closed. In the open state, the error guard protrudes from the door and the front plate of the drawer, and at the same time, the contact is restricted so that the dead bolt does not shift from the unlocked state to the locked state. A key malfunction prevention device configured to be displaced to a position that allows a transition from a state to a locked state is disclosed.

しかし、前述の特許文献１、２に記載の鍵の誤作動防止装置は、扉や引出し前板を開いたときには、エラーガードが突出した状態であるため、何らかの状況によりエラーガードが押し込まれると、施錠状態にすることが可能となる。 However, in the key malfunction prevention device described in Patent Documents 1 and 2 described above, the error guard is in a protruding state when the door or the front plate of the drawer is opened. Therefore, if the error guard is pushed in for some reason, It becomes possible to put it in a locked state.

また、３枚連動引戸において、中間引戸のガイド部に拘束されて上下方向に変位する可動体を設け、該可動体に第１連動杆と第２連動杆の一端をそれぞれ枢支部に枢支するとともに、第１連動杆の他端を前側引戸の戸先側の第１枢支部に枢支し且つ第２連動杆の他端を後側引戸の内側側縁の第２枢支部に枢支した連動機構とし、前側引戸の戸先側の端部に設けた施錠具の施錠操作で駆動されるロック部材によって、前記第１枢支部の近傍にて前記第１連動杆の引戸開放方向への回動を規制する施錠機構を採用した場合、引戸が開いた状態で、第１連動杆に干渉せず、施錠具を施錠状態にしてロック部材を施錠位置まで変位させることが可能であると、その状態で引戸を全閉状態に近い状態まで、つまり第１連動杆とロック部材が干渉する位置まで閉じることが可能となり、あたかも施錠状態で引戸が閉じられていると誤認識されることなる。更に、施錠状態で引戸を無理やり強く閉じると、前記ロック部材あるいは第１連動杆が破損する恐れが生じる。 Further, in the three interlocking sliding doors, a movable body that is restrained by the guide portion of the intermediate sliding door and is displaced in the vertical direction is provided, and one end of the first interlocking rod and the second interlocking rod is pivotally supported on the movable body, respectively. At the same time, the other end of the first interlocking rod was pivotally supported by the first pivotal branch on the door end side of the front sliding door, and the other end of the second interlocking rod was pivotally supported by the second pivotal branch on the inner side edge of the rear sliding door. The locking member, which is an interlocking mechanism and is driven by the locking operation of the locking tool provided at the end of the front sliding door on the door end side, rotates the first interlocking rod in the sliding door opening direction in the vicinity of the first pivot. When a locking mechanism that regulates movement is adopted, it is possible to displace the lock member to the locked position with the locking tool locked without interfering with the first interlocking rod with the sliding door open. In this state, the sliding door can be closed to a state close to the fully closed state, that is, to a position where the first interlocking rod and the lock member interfere with each other, and it is erroneously recognized that the sliding door is closed in the locked state. Further, if the sliding door is forcibly closed in the locked state, the lock member or the first interlocking rod may be damaged.

従来、施錠装置の誤作動を防止するために、特許文献１、２のように引出しの前板に、エラーガードが設けられたものもあるが、引戸やシャッター扉にエラーガードが設けられている例はこれまでなかった。 Conventionally, in order to prevent malfunction of the locking device, an error guard is provided on the front plate of the drawer as in Patent Documents 1 and 2, but an error guard is provided on the sliding door and the shutter door. There has never been an example.

実用新案登録第２６０４８４４号公報Utility Model Registration No. 2604844 特許第４４８０２１９号公報Japanese Patent No. 4480219

そこで、本発明が前述の状況に鑑み、解決しようとするところは、施錠具とデッドボルトを内蔵した引戸又はシャッター扉からなる開閉扉に最小限の部品を追加して施錠具の誤操作及び疑似ロックを防止することが可能な開閉扉の施錠装置を提供する点にある。 Therefore, in view of the above-mentioned situation, the present invention tries to solve the problem by adding a minimum number of parts to an opening / closing door consisting of a sliding door or a shutter door having a built-in locking tool and a dead bolt, and erroneous operation of the locking tool and pseudo-locking. The point is to provide a locking device for an opening / closing door capable of preventing the above.

本発明は、前述の課題解決のために、以下に構成する開閉扉の施錠装置を提供する。 The present invention provides a locking device for an opening / closing door configured as follows in order to solve the above-mentioned problems.

（１）
物品収納用の什器に設けられ、閉止状態で筐体の側框又は他の開閉扉である相手部材に戸先側が当接若しくは接近する引戸又はシャッター扉からなる開閉扉に、施錠具と、該施錠具の施錠操作時及び解錠操作時に変位するデッドボルトを備えた開閉扉の施錠装置であって、
エラーガードを前記デッドボルトの変位方向と交差する方向へ移動可能に保持するとともに、前記開閉扉の閉止方向へ弾性付勢し、該エラーガードには前記開閉扉の戸先側から前記開閉扉の裏側方向に突出し、閉止操作時に前記相手部材に当接する作動部と、解錠状態において前記デッドボルトに設けた係合部に係合し、該デッドボルトの変位を規制する規制部とを備え、前記開閉扉の閉止状態において前記相手部材に作動部が当接し、前記エラーガードが弾性付勢力に抗して移動することで、前記規制部と係合部の係合状態が解除されることを特徴とする開閉扉の施錠装置。 (1)
A lock and an opening / closing door made of a sliding door or a shutter door, which is provided in a fixture for storing goods and whose door end side abuts or approaches the side frame of the housing or another other member which is an opening / closing door in a closed state. An opening / closing door locking device equipped with a dead bolt that is displaced during locking and unlocking operations of the locking tool.
The error guard is held so as to be movable in a direction intersecting the displacement direction of the dead bolt, and elastically urged in the closing direction of the opening / closing door. It is provided with an operating portion that protrudes in the back side direction and comes into contact with the mating member during the closing operation, and a regulating portion that engages with the engaging portion provided on the dead bolt in the unlocked state and regulates the displacement of the dead bolt. When the opening / closing door is closed, the operating portion comes into contact with the mating member, and the error guard moves against the elastic urging force to release the engaging state between the restricting portion and the engaging portion. A characteristic lock device for opening and closing doors.

（２）
前記エラーガードが開閉扉の戸先側へ最も移動した状態でも、前記作動部は戸先側の端面と略面一、または戸先側の端面より内側に位置する（１）記載の開閉扉の施錠装置。 (2)
The opening / closing door according to (1), wherein the operating portion is located substantially flush with the end surface on the door end side or inside the end surface on the door end side even when the error guard is most moved to the door end side of the opening / closing door. Locking device.

（３）
前記デッドボルトは前記開閉扉の戸先側の縁部に沿って変位可能に設けられ、該デッドボルトの一部を開閉扉に設けた受部材に摺動可能に保持するとともに、該受部材に前記エラーガードを摺動可能に保持する（１）又は（２）記載の開閉扉の施錠装置。 (3)
The dead bolt is displaceably provided along the edge of the opening / closing door on the door end side, and a part of the dead bolt is slidably held by a receiving member provided on the opening / closing door and is attached to the receiving member. The opening / closing door locking device according to (1) or (2), which holds the error guard in a slidable manner.

（４）
前記開閉扉が、連動杆による連動機構によって３枚の引戸が連動して開閉する３枚連動引戸であり、施錠状態において前記連動杆の回動を規制するロック部材が前記デッドボルトに固定されている（１）～（３）いずれか１に記載の開閉扉の施錠装置。 ( 4 )
The opening / closing door is a three-panel interlocking sliding door in which three sliding doors are interlocked to open and close by an interlocking mechanism by an interlocking rod, and a lock member that regulates the rotation of the interlocking rod in the locked state is fixed to the dead bolt. (1)-( 3 ) The opening / closing door locking device according to any one of 1.

以上にしてなる本発明の開閉扉の施錠装置は、以下に示す効果を奏する。 The above-mentioned locking device for the opening / closing door of the present invention has the following effects.

（１）の構成によれば、開閉扉を開いた状態ではエラーガードの規制部が解錠状態のデッドボルトの係合部に係合して、該デッドボルトの変位を規制しているので、施錠具を誤って操作して施錠状態にすることが不可能であり、一方、開閉扉を閉止状態にすると、エラーガードの作動部が相手部材に当接して弾性付勢力に抗して移動し、規制部と係合部の係合状態が解除されるので、デッドボルトが変位可能となり施錠具を施錠操作して施錠状態にすることができ、施錠具の誤操作及び疑似ロックを防止することができる。そして、筐体の開口部に沿って引戸又はシャッター扉が開閉する施錠具付きキャビネットにエラーガード機構を簡単に導入できる。特に、前記相手部材が筐体の側框であると通常の開閉扉付きキャビネットを構成でき、前記相手部材が他の開閉扉であると、両開きの開閉扉付きキャビネットを構成できる。 According to the configuration of (1), when the open / close door is opened, the regulating portion of the error guard engages with the engaging portion of the dead bolt in the unlocked state to regulate the displacement of the dead bolt. It is impossible to accidentally operate the locking tool to lock it, while when the open / close door is closed, the operating part of the error guard comes into contact with the mating member and moves against the elastic urging force. Since the engagement state between the regulating part and the engaging part is released, the dead bolt can be displaced and the locking tool can be locked to the locked state, preventing erroneous operation of the locking tool and pseudo-locking. can. Then, the error guard mechanism can be easily introduced into the cabinet with a lock that opens and closes the sliding door or the shutter door along the opening of the housing. In particular, if the mating member is a side frame of the housing, a normal cabinet with an opening / closing door can be configured, and if the mating member is another opening / closing door, a cabinet with a double door can be configured.

（２）の構成によれば、開閉扉を開いている状態で作動部に不意に触れて、あるいは他物に当たってデッドボルトが変位して、予期しない状態で規制部と係合部の係合が解除される可能性を低くすることができる。 According to the configuration of (2), the dead bolt is displaced by suddenly touching the operating part or hitting another object while the opening / closing door is open, and the regulating part and the engaging part are engaged in an unexpected state. The possibility of being released can be reduced.

（３）の構成によれば、受部材でデッドボルトを摺動可能に支持するとともに、エラーガードも摺動可能に支持することができ、最小限の部品点数で施錠具の誤操作を防止することができるとともに、疑似ロックも防止できる。 According to the configuration of (3), the dead bolt can be slidably supported by the receiving member, and the error guard can also be slidably supported to prevent erroneous operation of the locking tool with the minimum number of parts. At the same time, pseudo-locking can be prevented.

（４）の構成によれば、連動杆による連動機構によって３枚の引戸が連動して開閉する３枚連動引戸を備えたキャビネットにおいて、施錠具の誤操作及び疑似ロックを防止することができる。 According to the configuration of ( 4 ), in a cabinet provided with three interlocking sliding doors in which three sliding doors are interlocked to open and close by an interlocking mechanism by an interlocking rod, it is possible to prevent erroneous operation of the locking tool and pseudo-locking.

本発明に係るキャビネトの全体斜視図である。It is an overall perspective view of the cabinet which concerns on this invention. 上段キャビネットの全体斜視図である。It is the whole perspective view of the upper cabinet. 上段キャビネットに設けた引戸を内側から見せた縦断背面図である。It is a vertical sectional rear view which showed the sliding door provided in the upper cabinet from the inside. 同じく３枚の引戸の閉止状態を示す部分縦断背面図である。Similarly, it is a partial vertical sectional rear view which shows the closed state of three sliding doors. 同じく３枚の引戸の施錠状態を示す部分縦断背面図である。Similarly, it is a partial vertical sectional rear view which shows the locked state of three sliding doors. ３枚の引戸の閉止状態における連動機構と施錠装置の状態を示す省略斜視図である。It is a schematic perspective view which shows the state of the interlocking mechanism and the locking device in the closed state of three sliding doors. ３枚の引戸の施錠状態における連動機構と施錠装置の状態を示す省略斜視図である。It is a schematic perspective view which shows the state of the interlocking mechanism and the locking device in the locked state of three sliding doors. （ａ）は閉止状態における施錠装置と連動機構の関係を示す部分拡大背面図、（ｂ）は施錠状態における施錠装置と連動機構の関係を示す部分拡大背面図である。(A) is a partially enlarged rear view showing the relationship between the locking device and the interlocking mechanism in the closed state, and (b) is a partially enlarged rear view showing the relationship between the locking device and the interlocking mechanism in the locked state. エラーガード機構の要部分解斜視図である。It is an exploded perspective view of the main part of an error guard mechanism. エラーガード機構の構成部品の分解斜視図である。It is an exploded perspective view of the component of an error guard mechanism. 引戸を開いた状態を示す部分縦断背面図である。It is a partial vertical sectional rear view which shows the state which the sliding door is opened. 引戸をやや開いた状態の筐体の側框と引戸及びエラーガード機構の関係を示す部分横断面図である。It is a partial cross-sectional view which shows the relationship between the side frame of a housing in a state where a sliding door is slightly opened, a sliding door and an error guard mechanism. 引戸の閉止状態の筐体の側框と引戸及びエラーガード機構の関係を示す部分横断面図である。It is a partial cross-sectional view which shows the relationship between the side frame of a housing in a closed state of a sliding door, a sliding door and an error guard mechanism. 片開き式のシャッター扉付きキャビネットの斜視図である。It is a perspective view of the cabinet with a single-door shutter door. 両開き式のシャッター扉付きキャビネットの斜視図である。It is a perspective view of the cabinet with a double door type shutter door. 片開き式のシャッター扉付きキャビネットにおいて、シャッター扉をやや開いた状態における筐体の側框とシャッター扉及びエラーガード機構の関係を示す部分斜視図である。It is a partial perspective view which shows the relationship between the side frame of a housing, a shutter door, and an error guard mechanism in a cabinet with a single-opening type shutter door in a state where the shutter door is slightly opened. 片開き式のシャッター扉付きキャビネットにおいて、シャッター扉の閉止状態における筐体の側框とシャッター扉及びエラーガード機構の関係を示す部分斜視図である。It is a partial perspective view which shows the relationship between the side frame of a housing in a closed state of a shutter door, a shutter door, and an error guard mechanism in a single-opening type cabinet with a shutter door.

次に、添付図面に示した実施形態に基づき、本発明を更に詳細に説明する。本発明は、キャビネット筐体等の開口部を開閉する開閉扉の施錠装置であって、施錠具の誤操作を防止するエラーガード機構Ｂを設けたものである。従って、本発明を適用する開閉扉としては、引戸とシャッター扉であるが、回動扉等の施錠装置を備えた扉類であれば、適用可能である。本実施形態では、主に３枚連動引戸を備えたキャビネットＡについて説明する。 Next, the present invention will be described in more detail based on the embodiments shown in the accompanying drawings. The present invention is a locking device for an opening / closing door that opens / closes an opening of a cabinet housing or the like, and is provided with an error guard mechanism B for preventing erroneous operation of the locking tool. Therefore, the opening / closing door to which the present invention is applied is a sliding door and a shutter door, but any door having a locking device such as a rotating door can be applied. In this embodiment, a cabinet A provided with three interlocking sliding doors will be mainly described.

図１は、３枚連動引戸を備えたキャビネットＡを示し、図２は上段キャビネットＡ１、図１２は下段キャビネットＡ２をそれぞれ示し、図３～図１３は本発明に係る施錠装置の詳細を示し、図中符号１は筐体、２は引戸（開閉扉）、３は引手、４は施錠具、５は連動機構、６は施錠機構、Ｂはエラーガード機構をそれぞれ示している。 1 shows a cabinet A provided with three interlocking sliding doors, FIG. 2 shows an upper cabinet A1, FIG. 12 shows a lower cabinet A2, and FIGS. 3 to 13 show details of a locking device according to the present invention. In the figure, reference numeral 1 is a cabinet, 2 is a sliding door (opening / closing door), 3 is a puller, 4 is a locking tool, 5 is an interlocking mechanism, 6 is a locking mechanism, and B is an error guard mechanism.

本実施形態のキャビネットＡは、上段キャビネットＡ１と下段キャビネットＡ２を上下に積層した構成であるが、下段キャビネットＡ２のみで使用することもある。上段キャビネットＡ１と下段キャビネットＡ２は、前記引手３と施錠具４を設ける位置が異なる以外は略同じ構造であるので、主に上段キャビネットＡ１を用いて構造を説明する。 The cabinet A of the present embodiment has a configuration in which the upper cabinet A1 and the lower cabinet A2 are stacked vertically, but it may be used only in the lower cabinet A2. Since the upper cabinet A1 and the lower cabinet A2 have substantially the same structure except that the positions where the pull tab 3 and the locking tool 4 are provided are different, the structure will be mainly described using the upper cabinet A1.

上段キャビネットＡ１は、筐体１の前面開口部に、複数枚の引戸２，…を、奥行方向に平行に配置した複数のレールを備えた下レール７と上レール８に、それぞれ横方向移動可能に設けて、各引戸２，…を引き違い可能に配置し、それらが連動機構５によって連動して開閉する構造のものである。本実施形態では、前述の３枚の引戸２，…は、手前から奥側へ前側引戸２Ａ、中間引戸２Ｂ、後側引戸２Ｃの順に配置した構成である。通常、前側引戸２Ａは上段キャビネットＡ１を正面から見て、向かって右側に配置され、後側引戸２Ｃは左側に配置されるが、左右逆であっても構わない。 The upper cabinet A1 can move laterally to the lower rail 7 and the upper rail 8 having a plurality of rails in which a plurality of sliding doors 2, ... Are arranged in parallel in the depth direction in the front opening of the housing 1. The sliding doors 2, ... Are arranged so as to be slidable, and they are interlocked by the interlocking mechanism 5 to open and close. In the present embodiment, the above-mentioned three sliding doors 2, ... Are arranged in the order of the front sliding door 2A, the intermediate sliding door 2B, and the rear sliding door 2C from the front to the back. Normally, the front sliding door 2A is arranged on the right side when the upper cabinet A1 is viewed from the front, and the rear sliding door 2C is arranged on the left side, but the left and right sides may be reversed.

また、本実施形態では、図１～図３に示すように、前記前側引戸２Ａ、中間引戸２Ｂ及び後側引戸２Ｃには、周囲の表面板９を除き中央部に透光性パネル１０を配置し、前記連動機構５は該透光性パネル１０より下方位置に設けている。また、図１～図３に示すように、上段キャビネットＡ１にあっては、前記引手３及び施錠具４を下部に設け、図１及び図１２に示すように、下段キャビネットＡ２にあっては、前記引手３及び施錠具４を上部に設けている。これら前記引手３と施錠具４の高さは、使用者が立って楽に操作できる位置に設定されている。 Further, in the present embodiment, as shown in FIGS. 1 to 3, the translucent panel 10 is arranged in the central portion of the front sliding door 2A, the intermediate sliding door 2B, and the rear sliding door 2C except for the surrounding surface plate 9. The interlocking mechanism 5 is provided below the translucent panel 10. Further, as shown in FIGS. 1 to 3, the upper cabinet A1 is provided with the pull tab 3 and the locking tool 4 at the lower part, and as shown in FIGS. 1 and 12, the lower cabinet A2 is provided with the pull tab 3 and the locking tool 4. The pull tab 3 and the locking tool 4 are provided on the upper part. The heights of the pull tab 3 and the locking tool 4 are set to positions where the user can stand and operate easily.

本発明に係る施錠装置は、図３～８に示すように、キャビネット等の筐体１の開口部に設けられ、手前側から奥側へ前側引戸２Ａ、中間引戸２Ｂ、後側引戸２Ｃを順に引き違い可能に配置するとともに、その裏面側において３枚の引戸２を連動機構５で連係させ、前側引戸２Ａと後側引戸２Ｃのどちら側の引戸を開閉しても、中間引戸２Ｂが連動して開閉する構造の３枚連動引戸において、前記連動機構５は、閉止状態における前記中間引戸２Ｂの前記前側引戸２Ａと重なる側の側縁に沿って上下方向のガイド部１１を形成し、該ガイド部１１に拘束されて上下に変位する可動体１２を有し、該可動体１２に第１連動杆１３と第２連動杆１４の一端を共通枢支部１５に枢支するとともに、第１連動杆１３の他端を前側引戸２Ａの戸先側の第１枢支部１６に枢支し且つ第２連動杆１４の他端を閉止状態における後側引戸２Ｃの前記中間引戸２Ｂと重なる側の側縁の第２枢支部１７に枢支した構造であり、適所に設けた施錠具４の施錠操作で駆動されるロック部材１８によって、前記第１連動杆１３又は第２連動杆１４を開放操作時の回転方向とは逆方向へ第１枢支部１６又は第２枢支部１７周りに強制回転させ、何れかの引戸に開放方向の力が作用しても前記可動体１２が開放操作時の動作方向へ変位しない位置に該可動体１２を維持する構造である。あるいは、前記前側引戸２Ａの戸先側の端部に設けた施錠具４の施錠操作で駆動されるロック部材１８によって、前記第１枢支部１６の近傍にて前記第１連動杆１３の該第１枢支部１６周りの回動を規制する構造である。 As shown in FIGS. 3 to 8, the locking device according to the present invention is provided in the opening of the housing 1 such as a cabinet, and the front sliding door 2A, the intermediate sliding door 2B, and the rear sliding door 2C are sequentially arranged from the front side to the back side. The intermediate sliding doors 2B are interlocked regardless of whether the sliding doors on either the front side sliding door 2A or the rear side sliding door 2C are opened or closed by arranging them so that they can be pulled apart and linking the three sliding doors 2 on the back side with the interlocking mechanism 5. In the three-panel interlocking sliding door having a structure that opens and closes, the interlocking mechanism 5 forms a guide portion 11 in the vertical direction along the side edge of the intermediate sliding door 2B on the side overlapping with the front sliding door 2A in the closed state, and the guide portion 11 is formed. It has a movable body 12 that is restrained by the portion 11 and displaced up and down, and one end of the first interlocking rod 13 and the second interlocking rod 14 is pivotally supported by the common pivot portion 15 and the first interlocking rod is supported by the movable body 12. The other end of 13 is pivotally supported by the first pivot portion 16 on the door end side of the front sliding door 2A, and the other end of the second interlocking rod 14 is the side edge of the rear sliding door 2C in the closed state on the side overlapping with the intermediate sliding door 2B. When the first interlocking rod 13 or the second interlocking rod 14 is opened by the lock member 18, which has a structure pivotally supported by the second pivot portion 17 and is driven by the locking operation of the locking tool 4 provided at an appropriate position. The movable body 12 is forced to rotate around the first pivot branch 16 or the second pivot branch 17 in the direction opposite to the rotation direction, and even if a force in the opening direction acts on any of the sliding doors, the movable body 12 moves in the operating direction during the opening operation. The structure is such that the movable body 12 is maintained at a position where it is not displaced. Alternatively, the lock member 18 driven by the locking operation of the locking tool 4 provided at the end of the front sliding door 2A on the door end side causes the first interlocking rod 13 in the vicinity of the first pivot portion 16. 1 It is a structure that regulates rotation around the pivot branch 16.

更に詳しくは、前記連動機構５は、図４に示すように、引戸２の開放操作時に前記可動体１２が上方へ変位するように第１連動杆１３と第２連動杆１４を配置し、引戸２の閉止状態において、前記第１枢支部１６と第２枢支部１７を結ぶ基準線Ｌより前記共通枢支部１５の位置が上位になるように設定して、引戸２の開放操作時に前記第１連動杆１３と第２連動杆１４の回動を許容し、それによって前記可動体１２を上動可能とした非施錠状態とし、前記施錠具４の施錠操作で駆動される前記ロック部材１８の変位で前記第１連動杆１３を下方へ強制回転させて前記中間引戸２Ｂに設けたストッパー１９に前記可動体１２を当止し、引戸２の開放操作時に前記第１連動杆１３の回動を規制し、それによって前記可動体１２を上動不能とした施錠状態とするのである。尚、前記第１枢支部１６、第２枢支部１７及び共通枢支部１５の位置関係を言う場合、その回動中心が基準となる。尚、施錠状態で、前記可動体１２が前記ストッパー１９に常時当止されている必要はなく、引戸２の開放しようとしたときに該可動体１２が下動し始めるとすぐに前記ストッパー１９に当止するようにしても良く、本明細書での「当止」とはこれも含むものである。 More specifically, as shown in FIG. 4, the interlocking mechanism 5 arranges the first interlocking rod 13 and the second interlocking rod 14 so that the movable body 12 is displaced upward when the sliding door 2 is opened. In the closed state of 2, the position of the common pivot portion 15 is set to be higher than the reference line L connecting the first pivot branch 16 and the second pivot portion 17, and the first one is set when the sliding door 2 is opened. Displacement of the lock member 18 driven by the locking operation of the locking tool 4 in an unlocked state in which the movable body 12 is allowed to rotate by allowing the interlocking rod 13 and the second interlocking rod 14 to rotate. The movable body 12 is stopped by the stopper 19 provided on the intermediate sliding door 2B by forcibly rotating the first interlocking rod 13 downward, and the rotation of the first interlocking rod 13 is restricted when the sliding door 2 is opened. As a result, the movable body 12 is locked so that it cannot move upward. When referring to the positional relationship between the first pivotal branch 16, the second pivotal branch 17, and the common pivotal branch 15, the center of rotation thereof is used as a reference. In the locked state, the movable body 12 does not have to be constantly held by the stopper 19, and as soon as the movable body 12 starts to move downward when the sliding door 2 is to be opened, the stopper 19 is pressed. It may be stopped, and the term "stopping" in the present specification includes this as well.

つまり、３枚の前記前側引戸２Ａ、中間引戸２Ｂ及び後側引戸２Ｃが第１連動杆１３と第２連動杆１４でリンク連結されているので、中間引戸２Ｂは前側引戸２Ａ又は後側引戸２Ｃの略半分の移動量になる。そして、前側引戸２Ａ又は後側引戸２Ｃの何れかを開くと、前記可動体１２がガイド部１１に沿って上昇しながら中間引戸２Ｂを開く方向に移動し、３枚の前記前側引戸２Ａ、中間引戸２Ｂ及び後側引戸２Ｃが前後に重なった状態に開くのである。閉じるときは、前述の逆に動作する。 That is, since the three front sliding doors 2A, the intermediate sliding doors 2B, and the rear sliding doors 2C are linked by the first interlocking rod 13 and the second interlocking rod 14, the intermediate sliding doors 2B are the front sliding doors 2A or the rear sliding doors 2C. The amount of movement is about half of that. Then, when either the front sliding door 2A or the rear sliding door 2C is opened, the movable body 12 moves in the direction of opening the intermediate sliding door 2B while rising along the guide portion 11, and the three front sliding doors 2A and the middle The sliding door 2B and the rear sliding door 2C are opened so as to overlap each other in the front-rear direction. When closing, it works in the reverse of the above.

そして、図５に示すように、引戸２の施錠状態において、前記第１枢支部１６と第２枢支部１７を結ぶ基準線Ｌに対して、前記共通枢支部１５の位置が一致するか若しくは下位になるように設定し、引戸２の開放操作時に前記第１連動杆１３と第２連動杆１４の回動を規制するのである。尚、引戸２の施錠状態においては、前記ガイド部１１の下端部に設けた前記ストッパー１９に前記可動体１２が当止している。 Then, as shown in FIG. 5, in the locked state of the sliding door 2, the position of the common pivot portion 15 coincides with or lower than the reference line L connecting the first pivot branch 16 and the second pivot portion 17. The rotation of the first interlocking rod 13 and the second interlocking rod 14 is restricted when the sliding door 2 is opened. In the locked state of the sliding door 2, the movable body 12 is stopped by the stopper 19 provided at the lower end of the guide portion 11.

更に、前記ロック部材１８は、図８に示すように、前記施錠具４の施錠操作で下動し、解錠操作で上動するデッドボルト２０に固定され、前記第１連動杆１３の第１枢支部１６の近傍位置に突設した操作ピン２１を、引戸２の閉止状態において載支する下側作動部２２と、施錠操作時に少なくとも前記共通枢支部１５が前記第１枢支部１６と第２枢支部１７を結ぶ基準線Ｌに一致するまで前記第１連動杆１３を下方へ強制回転させるための上側作動部２３とを備えている。 Further, as shown in FIG. 8, the lock member 18 is fixed to the dead bolt 20 which moves downward by the locking operation of the locking tool 4 and moves up by the unlocking operation, and is the first of the first interlocking rod 13. The operation pin 21 projecting from the vicinity of the pivot portion 16 is mounted on the lower operating portion 22 in the closed state of the sliding door 2, and at least the common pivot portion 15 is the first pivot portion 16 and the second pivot portion 16 during the locking operation. It is provided with an upper actuating portion 23 for forcibly rotating the first interlocking rod 13 downward until it coincides with the reference line L connecting the pivot portions 17.

ここで、前記第１連動杆１３には、図４及び図８（ａ）に示すように、前記第１枢支部１６の近傍に、該第１枢支部１６と共通枢支部１５とを結ぶ直線Ｍより下方へ突出した部分を有し、この下方突出部２４に前記操作ピン２１を前後方向に突設し、引戸２の開閉操作時に、前記第１連動杆１３の第１枢支部１６周りの回動の際に前記操作ピン２１が解錠状態にある前記ロック部材１８の上側作動部２３と干渉せず、引戸２の閉止状態において前記操作ピン２１が解錠状態にある前記ロック部材１８の下側作動部２２の上縁に当止するとともに、上側作動部２３の直下に位置するように設定している。 Here, in the first interlocking rod 13, as shown in FIGS. 4 and 8 (a), a straight line connecting the first pivot portion 16 and the common pivot portion 15 is provided in the vicinity of the first pivot portion 16. It has a portion protruding downward from M, and the operation pin 21 is projected in the front-rear direction on the downward projecting portion 24, and when the sliding door 2 is opened / closed, the circumference of the first pivot portion 16 of the first interlocking rod 13 is reached. The operation pin 21 does not interfere with the upper actuating portion 23 of the lock member 18 which is in the unlocked state during rotation, and the lock member 18 whose operation pin 21 is in the unlocked state when the sliding door 2 is closed. It is set so as to hit the upper edge of the lower actuating portion 22 and to be located directly below the upper actuating portion 23.

更に具体的に説明すれば、前記連動機構５を構成する前記ガイド部１１は、本実施形態では断面略Ｃ字形のガイド溝であり、前記可動体１２はガイド溝内を転動するコロであるが、前記ガイド部１１がガイド棒で前記可動体１２が摺動部材であっても構わない。摺動部材は摩擦抵抗の少ない合成樹脂製ブロックであっても、接触部にベアリングを配置した精密摺動部材であっても構わない。 More specifically, the guide portion 11 constituting the interlocking mechanism 5 is a guide groove having a substantially C-shaped cross section in the present embodiment, and the movable body 12 is a roller that rolls in the guide groove. However, the guide portion 11 may be a guide rod and the movable body 12 may be a sliding member. The sliding member may be a synthetic resin block having a low frictional resistance, or a precision sliding member in which a bearing is arranged at a contact portion.

前記ガイド部１１は、図４及び図６に示すように、中間引戸２Ｂの右側縁（閉止状態において前側引戸２Ａと重なる側の側縁）にガイド溝として形成するが、それには前記表面板９の裏面に、右側縁に沿って案内部材２５を固定して形成する。前記案内部材２５は、上下方向に延びた長尺部材であり、前記中間引戸２Ｂの表面板９の裏面にスポット溶接で固着する固定板２６の上下中間部の側縁に沿って断面略Ｌ字形のガイド片２７を略直角に折曲形成している。そして、前記案内部材２５の固定板２６を中間引戸２Ｂの右側縁に沿って表面板９の裏面に固定し、該中間引戸２Ｂの断面略Ｌ字形の側縁片２８と前記ガイド片２７を、隙間を設けて対向させて配置し、断面略Ｃ字形のガイド溝を構成している。そして、前記ガイド部１１の下端には前記ストッパー１９を固定するとともに、上端にもストッパー２９を固定し、引戸２，…の全開時に前記可動体１２を当止するようにしている。 As shown in FIGS. 4 and 6, the guide portion 11 is formed as a guide groove on the right side edge of the intermediate sliding door 2B (the side edge on the side overlapping the front sliding door 2A in the closed state), and the surface plate 9 is formed therein. The guide member 25 is fixedly formed on the back surface of the sliding door along the right edge. The guide member 25 is a long member extending in the vertical direction, and has a substantially L-shaped cross section along the side edge of the upper and lower intermediate portions of the fixing plate 26 which is fixed to the back surface of the front surface plate 9 of the intermediate sliding door 2B by spot welding. The guide piece 27 is bent at a substantially right angle. Then, the fixing plate 26 of the guide member 25 is fixed to the back surface of the front surface plate 9 along the right side edge of the intermediate sliding door 2B, and the side edge piece 28 having a substantially L-shaped cross section of the intermediate sliding door 2B and the guide piece 27 are combined. A guide groove having a substantially C-shaped cross section is formed by providing a gap and arranging them facing each other. The stopper 19 is fixed to the lower end of the guide portion 11, and the stopper 29 is also fixed to the upper end so that the movable body 12 is stopped when the sliding doors 2, ... Are fully opened.

次に、図３～図８に基づいて、３枚の引戸２，…が閉じた状態でロックするための施錠機構６を詳細に説明する。本実施形態では、前記施錠具４としてシリンダー錠を用い、前記前側引戸２Ａの戸先側縁部の下部裏面に保持部材３０にて固定し、鍵穴は表面板９から表に露出させている。前記施錠具４からは、上下方向に長尺の前記デッドボルト２０が延びており、特に上方の引手３の背面側まで延びて先端部は受部材３１で摺動可能に支持している。そして、前記保持部材３０と受部材３１との間に露出した前記デッドボルト２０に前記ロック部材１８を固定している。尚、前記第１連動杆１３の第１枢支部１６は、前記デッドボルト２０より表面板９側に位置している。前記ロック部材１８は、図８に示すように、ブロック状の部材であり、内側側部には切欠凹部３２が形成されており、該切欠凹部３２の下側が前記下側作動部２２となり、上側が前記上側作動部２３となっている。そして、前記第１連動杆１３の下方突出部２４に後方へ向けて突設した前記操作ピン２１を、引戸２の閉止状態で前記ロック部材１８の切欠凹部３２に受け入れることができるようになっている。ここで、前記保持部材３０は、前記施錠具４の固定部分３０Ａから前記引手３の背後に渡ってアーチ部３０Ｂが形成され、該アーチ部３０Ｂに合成樹脂製の前記受部材３１が嵌着されている。また、前記保持部材３０の固定部分３０Ａは、二部材から構成され前記施錠具４を挟み込んだ状態でネジ止めされている。 Next, the locking mechanism 6 for locking the three sliding doors 2, ... In a closed state will be described in detail with reference to FIGS. 3 to 8. In the present embodiment, a cylinder lock is used as the locking tool 4, and the lock is fixed to the lower back surface of the door end side edge of the front sliding door 2A by a holding member 30, and the keyhole is exposed from the surface plate 9 to the front. The long dead bolt 20 extends in the vertical direction from the locking tool 4, and particularly extends to the back surface side of the upper pull tab 3 and its tip portion is slidably supported by the receiving member 31. Then, the lock member 18 is fixed to the dead bolt 20 exposed between the holding member 30 and the receiving member 31. The first pivot portion 16 of the first interlocking rod 13 is located on the surface plate 9 side of the dead bolt 20. As shown in FIG. 8, the lock member 18 is a block-shaped member, and a notch recess 32 is formed in the inner side portion, and the lower side of the notch recess 32 becomes the lower actuating portion 22 and is upper. The side is the upper actuating portion 23. Then, the operation pin 21 projecting rearward from the downward protrusion 24 of the first interlocking rod 13 can be received in the notch recess 32 of the lock member 18 in the closed state of the sliding door 2. There is. Here, in the holding member 30, an arch portion 30B is formed from the fixing portion 30A of the locking tool 4 to the back of the pull tab 3, and the receiving member 31 made of synthetic resin is fitted to the arch portion 30B. ing. Further, the fixing portion 30A of the holding member 30 is composed of two members and is screwed in a state where the locking tool 4 is sandwiched.

図４及び図８（ａ）に示した引戸２の閉止状態において、前記施錠具４は解錠状態にあり、前記操作ピン２１は前記ロック部材１８の下側作動部２２に載支されて、前記第１連動杆１３はそれ以上第１枢支部１６周りに下方へ回転しないようになっている。つまり、前記第１連動杆１３と第２連動杆１４は上向きに凸の屈曲状態となっており、前記可動体１２は前記ストッパー１９よりも高い位置にある。それから、前記施錠具４を施錠操作すると、前記デッドボルト２０か下動し、前記前記ロック部材１８が下動して前記上側作動部２３が前記操作ピン２１に当たって前記第１連動杆１３を前記第１枢支部１６周りに下方へ強制的に回転させ、前記ストッパー１９に可動体１２が当止した状態で静止し、図５及び図８（ｂ）に示す引戸２の施錠状態となる。尚、前記施錠具４の施錠操作時の初期段階では前記下側作動部２２の下動につれて前記第１連動杆１３と第２連動杆１４及び可動体１２の自重により若干下方へ下がるが、該可動体１２がストッパー１９に当止されるまでは下がらない。 In the closed state of the sliding door 2 shown in FIGS. 4 and 8 (a), the lock tool 4 is in the unlocked state, and the operation pin 21 is mounted on the lower actuating portion 22 of the lock member 18. The first interlocking rod 13 is prevented from rotating further downward around the first pivot portion 16. That is, the first interlocking rod 13 and the second interlocking rod 14 are in an upwardly convex bent state, and the movable body 12 is at a position higher than the stopper 19. Then, when the locking tool 4 is locked, the dead bolt 20 is moved downward, the lock member 18 is moved downward, the upper operating portion 23 hits the operation pin 21, and the first interlocking rod 13 is moved downward. 1 The movable body 12 is forcibly rotated downward around the pivot portion 16 and stands still in a state where the movable body 12 is in contact with the stopper 19, and the sliding door 2 shown in FIGS. 5 and 8 (b) is locked. In the initial stage of the locking operation of the locking tool 4, the lower operating portion 22 moves downward slightly due to the weight of the first interlocking rod 13, the second interlocking rod 14, and the movable body 12. The movable body 12 does not go down until it hits the stopper 19.

ここで、引戸２の閉止状態から施錠状態に移行する間に、前記第１枢支部１６と第２枢支部１７の間隔は若干広がることになる。つまり、前記前側引戸２Ａと後側引戸２Ｃは下部が外側へ押しやられて若干傾斜する必要がある。そのため、本実施形態では、図３及び図９に示すように、前記筐体１の側框３３（相手部材）には、前記前側引戸２Ａと後側引戸２Ｃのそれぞれの戸先側部分を受け入れる凹溝部３４を設けており、該凹溝部３４の上下中央部に一つの戸当り部材３５を設けている。前記戸当り部材３５は、ゴム製で凹溝部３４の底部からの突出高さは３ｍｍに設定しているが、引戸２の寸法に応じて２～５ｍｍ程度で調整する。通常の引戸２の開閉時には前記前側引戸２Ａと後側引戸２Ｃの戸先側端面の上下中央部が前記戸当り部材３５に当接して閉止状態となる。そして、閉止状態から施錠状態へ移行する際に、前記前側引戸２Ａと後側引戸２Ｃの下部がそれぞれ戸当り部材３５を支点として外側へ開き、前記第１連動杆１３と第２連動杆１４による突っ張り動作を許容するのである。 Here, the distance between the first pivot branch 16 and the second pivot portion 17 is slightly widened during the transition from the closed state to the locked state of the sliding door 2. That is, the lower part of the front sliding door 2A and the rear sliding door 2C needs to be pushed outward and slightly inclined. Therefore, in the present embodiment, as shown in FIGS. 3 and 9, the side stile 33 (the mating member) of the housing 1 accepts the front side portions of the front sliding door 2A and the rear sliding door 2C, respectively. A concave groove portion 34 is provided, and one door stop member 35 is provided at the upper and lower central portions of the concave groove portion 34. The door stop member 35 is made of rubber and the height of protrusion from the bottom of the concave groove portion 34 is set to 3 mm, but the height is adjusted to about 2 to 5 mm according to the dimensions of the sliding door 2. When the normal sliding door 2 is opened and closed, the upper and lower center portions of the door end side end faces of the front sliding door 2A and the rear sliding door 2C come into contact with the door stop member 35 and are closed. Then, when shifting from the closed state to the locked state, the lower portions of the front sliding door 2A and the rear sliding door 2C each open outward with the door stop member 35 as a fulcrum, and the first interlocking rod 13 and the second interlocking rod 14 respectively. It allows the tensioning motion.

ここで、前記第１連動杆１３の第１枢支部１６の構造は、前記第１連動杆１３の端部に固定した軸部材３６を、前記保持部材３０のアーチ部３０Ｂに形成した開口３７に嵌着した合成樹脂製の軸受部材３８の軸受部に回動可能に係合させた構造である。尚、前記第２連動杆１４の第２枢支部１７の構造も同様な構造とすることが好ましい。 Here, the structure of the first pivot portion 16 of the first interlocking rod 13 is such that the shaft member 36 fixed to the end portion of the first interlocking rod 13 is inserted into the opening 37 formed in the arch portion 30B of the holding member 30. The structure is rotatably engaged with the bearing portion of the fitted synthetic resin bearing member 38. It is preferable that the structure of the second pivot portion 17 of the second interlocking rod 14 has the same structure.

次に、本発明に係る施錠装置のエラーガード機構Ｂを、図８～図１３に基づいて説明する。前記受部材３１は、板状の前記デッドボルト２０を前記前側引戸２Ａの縁部に沿った方向に摺動可能に支持する部材であるが、該受部材３１には前記デッドボルト２０の変位方向と交差するように、エラーガード３９が組み込まれている。 Next, the error guard mechanism B of the locking device according to the present invention will be described with reference to FIGS. 8 to 13. The receiving member 31 is a member that slidably supports the plate-shaped dead bolt 20 in a direction along the edge of the front sliding door 2A, and the receiving member 31 has a displacement direction of the dead bolt 20. An error guard 39 is incorporated so as to intersect with.

前記受部材３１は、前記保持部材３０のアーチ部３０Ｂに形成した装着孔４０に嵌着して取付ける。具体的には、前記受部材３１は、前記装着孔４０に嵌入する嵌合部４１と装着孔４０の孔縁で前記アーチ部３０Ｂの表面に接合する両鍔部４２，４２を有し、前記嵌合部４１には弾性爪４３，４３を有し、前記装着孔４０の孔縁の裏側に抜け止め係合するようになっている。そして、前記受部材３１の嵌合部４１と反対側には、上下に前記デッドボルト２０の先端部を摺動可能に保持する門形の保持部４４，４４を形成した構造であり、更に該デッドボルト２０の背面側には前記エラーガード３９が前記デッドボルト２０の変位方向と交差する方向へ移動可能に保持するとともに、前記前側引戸２Ａの閉止方向へ圧縮コイルばね４５によって弾性付勢している。また、前記エラーガード３９には前記前側引戸２Ａの戸先側から突出し、閉止操作時に筐体１の側框３３に当接する作動部４６と、解錠状態において前記デッドボルト２０に設けた係合部４７に係合し、該デッドボルト２０の変位を規制する規制部４８とを備えている。 The receiving member 31 is fitted and attached to a mounting hole 40 formed in the arch portion 30B of the holding member 30. Specifically, the receiving member 31 has a fitting portion 41 that fits into the mounting hole 40 and both flange portions 42, 42 that are joined to the surface of the arch portion 30B at the hole edge of the mounting hole 40. The fitting portion 41 has elastic claws 43, 43 so as to prevent and engage with the back side of the hole edge of the mounting hole 40. Further, on the side opposite to the fitting portion 41 of the receiving member 31, a gate-shaped holding portion 44, 44 for slidably holding the tip portion of the dead bolt 20 is formed above and below, and further, the structure is formed. The error guard 39 is movably held on the back side of the dead bolt 20 in a direction intersecting the displacement direction of the dead bolt 20, and is elastically urged by a compression coil spring 45 in the closing direction of the front sliding door 2A. There is. Further, the error guard 39 is engaged with the operating portion 46 which protrudes from the door end side of the front sliding door 2A and comes into contact with the side frame 33 of the housing 1 during the closing operation, and the dead bolt 20 provided in the unlocked state. It is provided with a regulating portion 48 that engages with the portion 47 and regulates the displacement of the dead bolt 20.

更に詳しくは、前記受部材３１の門形の保持部４４，４４の基部内方にはガイド溝４９，４９が対向状態で形成され、該ガイド溝４９，４９に前記エラーガード３９の両側に突設した突条片５０，５０を摺動可能に係合している。また、前記エラーガード３９の背面側に突設した前記圧縮コイルばね４５の一端を係合支持するばね受部５１が、前記嵌合部４１の内部空間で移動可能となっており、前記圧縮コイルばね４５の他端は前記受部材３１の内部に当接されている。更に、前記エラーガード３９が圧縮コイルばね４５の弾性付勢力によって前側引戸２Ａの戸先側へ最も移動した状態で、前記ばね受部５１を当止する突起５２を前記嵌合部４１の内部空間に設けている。尚、前記エラーガード３９が前側引戸２Ａの戸先側へ最も移動した状態でも、前記作動部４６は戸先側の端面から突出しない位置にあり、該作動部４６は前側引戸２Ａの裏面側へ突出している。実際には、前記前側引戸２Ａの戸先側の端面と前記作動部４６の端面は略面一に設定している。前記規制部４８は、前記作動部４６と反対側の端部で、該作動部４６と同じ方向に突出したブロック状部分である。尚、本発明における「略面一」とは、戸先側の端面から作動部４６が若干突出していたとしても、突出寸法が、エラーガード３９の規制部４８とデッドボルト２０の係合部４７の係合寸法以下であればよく、この状態も含まれる概念である。 More specifically, guide grooves 49, 49 are formed in a facing state inside the bases of the gate-shaped holding portions 44, 44 of the receiving member 31, and the guide grooves 49, 49 project to both sides of the error guard 39. The provided ridge pieces 50, 50 are slidably engaged with each other. Further, the spring receiving portion 51 that engages and supports one end of the compression coil spring 45 projecting from the back surface side of the error guard 39 is movable in the internal space of the fitting portion 41, and the compression coil is movable. The other end of the spring 45 is in contact with the inside of the receiving member 31. Further, in a state where the error guard 39 is most moved to the door end side of the front sliding door 2A by the elastic urging force of the compression coil spring 45, the protrusion 52 that stops the spring receiving portion 51 is provided in the internal space of the fitting portion 41. It is provided in. Even when the error guard 39 is most moved to the door end side of the front sliding door 2A, the operating portion 46 is in a position where it does not protrude from the end surface on the door end side, and the operating portion 46 moves to the back surface side of the front sliding door 2A. It is protruding. Actually, the end surface of the front sliding door 2A on the door end side and the end surface of the operating portion 46 are set to be substantially flush with each other. The restricting portion 48 is an end portion opposite to the actuating portion 46 and is a block-shaped portion protruding in the same direction as the actuating portion 46. The term "substantially flush" in the present invention means that even if the operating portion 46 slightly protrudes from the end surface on the door end side, the protruding dimension is the engaging portion 47 between the regulating portion 48 of the error guard 39 and the dead bolt 20. It suffices as long as it is equal to or less than the engagement dimension of, and this state is also included in the concept.

前記前側引戸２Ａが閉止状態で戸先側の端部を受け入れる前記凹溝部３４が前記筐体１の側框３３に設けられているが、該凹溝部３４の奥側は側框３３の一部を内側方へ膨出させて形成した凸条５３で区画されている。また、前記デッドボルト２０は、長尺の板状部材であり、前記係合部４７はその内側側縁に形成した長方形状の切欠部である。 The concave groove portion 34 that receives the end portion on the door tip side in the closed state of the front sliding door 2A is provided on the side stile 33 of the housing 1, but the inner side of the concave groove portion 34 is a part of the side stile 33. Is partitioned by a ridge 53 formed by bulging inward. Further, the dead bolt 20 is a long plate-shaped member, and the engaging portion 47 is a rectangular notch formed on the inner side edge thereof.

そして、本発明は、閉止状態で相手部材（側框３３）に戸先側が当接若しくは接近する開閉扉（引戸２）に、施錠具４と、該施錠具４の施錠操作時及び解錠操作時に変位するデッドボルト２０を備えた開閉扉の施錠装置であって、エラーガード３９を前記デッドボルト２０の変位方向と交差する方向へ移動可能に保持するとともに、前記開閉扉（引戸２）の閉止方向へ弾性付勢し、該エラーガード３９には前記開閉扉（引戸２）の戸先側から突出し、閉止操作時に相手部材（側框３３）に当接する作動部４６と、解錠状態において前記デッドボルト２０に設けた係合部４７に係合し、該デッドボルト２０の変位を規制する規制部４８とを備え、前記開閉扉（引戸２）の閉止状態において前記相手部材（側框３３）に作動部４６が当接し、前記エラーガード３９が弾性付勢力に抗して移動することで、前記規制部４８と係合部４７の係合状態が解除されることを特徴とする。更に、前記デッドボルト２０は前記開閉扉（引戸２）の戸先側の縁部に沿って変位可能に設けられ、該デッドボルト２０の一部を開閉扉（引戸２）に設けた受部材３１に摺動可能に保持するとともに、該受部材３１に前記エラーガード３９を摺動可能に保持する。 Further, in the present invention, the locking tool 4 and the locking operation and unlocking operation of the locking tool 4 and the locking tool 4 on the opening / closing door (sliding door 2) in which the door end side abuts or approaches the mating member (side frame 33) in the closed state. An opening / closing door locking device provided with a dead bolt 20 that is sometimes displaced, the error guard 39 is movably held in a direction intersecting the displacement direction of the dead bolt 20, and the opening / closing door (sliding door 2) is closed. The error guard 39 is elastically urged in the direction, and the operating portion 46 that protrudes from the door end side of the opening / closing door (sliding door 2) and comes into contact with the mating member (side stile 33) during the closing operation, and the above-mentioned in the unlocked state. The mating member (side stile 33) is provided with a regulating portion 48 that engages with an engaging portion 47 provided on the dead bolt 20 and regulates the displacement of the dead bolt 20 in a closed state of the opening / closing door (sliding door 2). The actuating portion 46 comes into contact with the door, and the error guard 39 moves against the elastic urging force, whereby the engaged state between the restricting portion 48 and the engaging portion 47 is released. Further, the dead bolt 20 is displaceably provided along the edge of the opening / closing door (sliding door 2) on the door end side, and a part of the dead bolt 20 is provided on the opening / closing door (sliding door 2). The error guard 39 is slidably held in the receiving member 31.

ここで、説明を省略した前記下段キャビネットＡ２の基本構成は、前記上段キャビネットＡ１と同じであるが、下段キャビネットＡ２では、前記引手３と施錠具４は前側引戸２Ａと後側引戸２Ｃの上部に設け、連動機構５は下部に設けているため、前記施錠具４のデッドボルト２０の下端に長尺の操作杆（図示せず）を連結するとともに、該操作杆の下端を摺動案内し、該操作杆の下部に固定した前記ロック部材１８で前記第１連動杆１３の操作ピン２１を操作している。 Here, the basic configuration of the lower cabinet A2, which is omitted from the description, is the same as that of the upper cabinet A1, but in the lower cabinet A2, the puller 3 and the locking tool 4 are located above the front sliding door 2A and the rear sliding door 2C. Since the interlocking mechanism 5 is provided at the lower part, a long operating rod (not shown) is connected to the lower end of the dead bolt 20 of the locking tool 4, and the lower end of the operating rod is slidably guided. The operation pin 21 of the first interlocking rod 13 is operated by the lock member 18 fixed to the lower part of the operation rod.

図１４は、片開き式のシャッター扉付きキャビネットを示し、本発明の開閉扉としてスラットを複数屈曲可能に連結したシャッター扉５４を採用した適用例である。この場合は、相手部材が前記同様に筐体１の側框３３である。前記シャッター扉５４の戸先側の端部には引手５５を備えるとともに、施錠具４を内蔵した端部スラット５６を設けている。また、図１５は、両開き式のシャッター扉付きキャビネットを示し、本発明の開閉扉としてシャッター扉５４を採用し、相手部材が他のシャッター扉５４である適用例である。 FIG. 14 shows a cabinet with a single-door shutter door, and is an application example in which a shutter door 54 in which a plurality of slats are flexibly connected are adopted as the opening / closing door of the present invention. In this case, the mating member is the side stile 33 of the housing 1 as described above. A pull tab 55 is provided at the end of the shutter door 54 on the door end side, and an end slat 56 containing a locking tool 4 is provided. Further, FIG. 15 shows an application example in which a double-door type cabinet with a shutter door is shown, a shutter door 54 is adopted as the opening / closing door of the present invention, and the mating member is another shutter door 54.

前記端部スラット５６は、図１６に示すように、施錠具４から上下に延びたデッドボルト５７を備え、該施錠具４の操作によって前記デッドボルト５７が上下方向に変位するように配置している。前記デッドボルト５７の上下端部は受部材５８，５８に摺動可能に保持されており、また該受部材５８にはそれぞれエラーガード５９が水平方向へ移動可能に保持されている。前記デッドボルト５７の上下端部には、前記施錠具４の施錠操作時に回動して側方へ突出するフック６０，６０を設けシャッター扉５４、前記筐体１の側框３３には前記フック６０，６０を受け入れて係止する係止孔６１，６１を形成している。そして、前記エラーガード５９は、図示しないばねによってシャッター扉５４の閉止方向へ弾性付勢している。 As shown in FIG. 16, the end slat 56 includes a dead bolt 57 extending up and down from the lock tool 4, and the dead bolt 57 is arranged so as to be displaced in the vertical direction by the operation of the lock tool 4. There is. The upper and lower ends of the dead bolt 57 are slidably held by the receiving members 58 and 58, and the error guard 59 is held by the receiving members 58 so as to be movable in the horizontal direction, respectively. Hooks 60, 60 that rotate and project laterally during the locking operation of the locking tool 4 are provided on the upper and lower ends of the dead bolt 57, and the hooks are provided on the shutter door 54 and the side frame 33 of the housing 1. It forms locking holes 61, 61 that receive and lock 60, 60. The error guard 59 is elastically urged in the closing direction of the shutter door 54 by a spring (not shown).

そして、前記エラーガード５９には、前記シャッター扉５４の戸先側に臨み、閉止操作時に側框３３の突条部３３Ａに当接する作動部６２と、解錠状態において前記デッドボルト５７に設けた係合部６３に係合し（図１６参照）、該デッドボルト５７の変位を規制する規制部６４とを備え、前記シャッター扉５４の閉止状態において前記側框３３の突条部３３Ａに作動部６２が当接し、前記エラーガード５９が弾性付勢力に抗して移動することで、前記規制部６４と係合部６３の係合状態が解除されるようになっている（図１７参照）。ここで、前記シャッター扉５４の端部スラット５６の戸先側の端面と前記作動部６２の端面は略面一に設定している。尚、前記同様に「略面一」とは、戸先側の端面から作動部６２が若干突出していたとしても、突出寸法が、エラーガード５９の規制部６４とデッドボルト５７の係合部６３の係合寸法以下であればよく、この状態も含まれる概念である。 The error guard 59 is provided with an operating portion 62 that faces the door end side of the shutter door 54 and abuts on the ridge portion 33A of the side stile 33 during the closing operation, and the dead bolt 57 in the unlocked state. It is provided with a regulating portion 64 that engages with the engaging portion 63 (see FIG. 16) and regulates the displacement of the dead bolt 57, and is actuated on the ridge portion 33A of the side stile 33 in the closed state of the shutter door 54. When the error guard 59 comes into contact with the 62 and moves against the elastic urging force, the engaged state between the restricting portion 64 and the engaging portion 63 is released (see FIG. 17). Here, the end surface of the end slat 56 of the shutter door 54 on the door end side and the end surface of the actuating portion 62 are set to be substantially flush with each other. Similarly to the above, "substantially flush" means that even if the operating portion 62 slightly protrudes from the end surface on the door end side, the protruding dimension is the engaging portion 63 between the regulating portion 64 of the error guard 59 and the dead bolt 57. It suffices as long as it is equal to or less than the engagement dimension of, and this state is also included in the concept.

尚、相手部材が他のシャッター扉５４である場合には、前記側框３３の代わりに他のシャッター扉５４の端部スラット５６の端面（召し合わせ部）に前記係止孔６１，６１を設ければ良い。 When the mating member is another shutter door 54, the locking holes 61 and 61 are provided on the end surface (combination portion) of the end slat 56 of the other shutter door 54 instead of the side frame 33. Just do it.

Ａキャビネット、
Ａ１上段キャビネット、
Ａ２下段キャビネット、
Ｂエラーガード機構、
１筐体、２引戸（開閉扉）、
２Ａ前側引戸、２Ｂ中間引戸、
２Ｃ後側引戸、３引手、
４施錠具、５連動機構、
６施錠機構、７下レール、
８上レール、９表面板、
１０透光性パネル、１１ガイド部、
１２可動体、１３第１連動杆、
１４第２連動杆、１５共通枢支部、
１６第１枢支部、１７第２枢支部、
１８ロック部材、１９ストッパー、
２０デッドボルト、２１操作ピン、
２２下側作動部、２３上側作動部、
２４下方突出部、２５案内部材、
２６固定板、２７ガイド片、
２８側縁片、２９ストッパー、
３０保持部材、３０Ａ固定部分、
３０Ｂアーチ部、３１受部材、
３２切欠凹部、３３側框（相手部材）、
３４凹溝部、３５戸当り部材、
３６軸部材、３７開口、
３８軸受部材、３９エラーガード、
４０装着孔、４１嵌合部、
４２鍔部、４３弾性爪、
４４保持部、４５圧縮コイルばね、
４６作動部、４７係合部、
４８規制部、４９ガイド溝、
５０突条片、５１ばね受部、
５２突起、５３凸条、
５４シャッター扉、５５引手、
５６端部スラット、５７デッドボルト、
５８受部材、５９エラーガード
６０フック、６１係止孔、
６２作動部、６３係合部、
６４規制部。 A cabinet,
A1 upper cabinet,
A2 lower cabinet,
B error guard mechanism,
1 housing, 2 sliding doors (opening and closing doors),
2A front sliding door, 2B intermediate sliding door,
2C rear sliding door, 3 puller,
4 locker, 5 interlocking mechanism,
6 Locking mechanism, 7 Lower rail,
8 upper rail, 9 surface plate,
10 Translucent panel, 11 Guide part,
12 Movable body, 13 First interlocking rod,
14 Second interlocking rod, 15 Common pivot,
16 1st pivot, 17 2nd pivot,
18 lock member, 19 stopper,
20 dead bolts, 21 operation pins,
22 lower actuating part, 23 upper actuating part,
24 downward protrusion, 25 guide member,
26 fixing plate, 27 guide piece,
28 side edge piece, 29 stopper,
30 holding member, 30A fixed part,
30B arch part, 31 receiving member,
32 notch recess, 33 side stile (counterpart),
34 concave groove, 35 door stop member,
36 shaft member, 37 opening,
38 bearing member, 39 error guard,
40 mounting holes, 41 fittings,
42 collar, 43 elastic claws,
44 holding part, 45 compression coil spring,
46 Acting part, 47 Engaging part,
48 Regulatory Department, 49 Guide Groove,
50 ridge pieces, 51 spring receivers,
52 protrusions, 53 protrusions,
54 shutter door, 55 puller,
56 end slats, 57 dead bolts,
58 receiving member, 59 error guard 60 hook, 61 locking hole,
62 Acting part, 63 Engaging part,
64 Regulatory Department.

Claims

A lock and an opening / closing door made of a sliding door or a shutter door, which is provided in a fixture for storing goods and whose door end side abuts or approaches the side frame of the housing or another other member which is an opening / closing door in a closed state. An opening / closing door locking device equipped with a dead bolt that is displaced during locking and unlocking operations of the locking tool.
The error guard is held movably in a direction intersecting the displacement direction of the dead bolt, and elastically urged in the closing direction of the opening / closing door.
The error guard has an operating portion that protrudes from the door end side of the opening / closing door toward the back side of the opening / closing door and comes into contact with the mating member during the closing operation.
In the unlocked state, it is provided with a regulating portion that engages with the engaging portion provided on the dead bolt and regulates the displacement of the dead bolt.
When the opening / closing door is closed, the operating portion comes into contact with the mating member, and the error guard moves against the elastic urging force to release the engaging state between the restricting portion and the engaging portion. A featured locker for opening and closing doors.

The opening / closing door according to claim 1, wherein the operating portion is located substantially flush with the end surface on the door end side or inside the end surface on the door end side even when the error guard is most moved to the door end side of the opening / closing door. Locking device.

The dead bolt is provided so as to be displaceable along the edge of the opening / closing door on the door end side.
A part of the dead bolt is slidably held by a receiving member provided on the opening / closing door, and at the same time.
The opening / closing door locking device according to claim 1 or 2, wherein the error guard is slidably held on the receiving member.

The opening / closing door is a three-panel interlocking sliding door in which three sliding doors are interlocked to open and close by an interlocking mechanism using an interlocking rod.
The lock device for an open / close door according to any one of claims 1 to 3 , wherein a lock member that regulates the rotation of the interlocking rod in the locked state is fixed to the dead bolt.