JP4861064B2

JP4861064B2 - Strike structure

Info

Publication number: JP4861064B2
Application number: JP2006154938A
Authority: JP
Inventors: 理志田村; 健二小川
Original assignee: 美和ロック株式会社
Priority date: 2006-06-02
Filing date: 2006-06-02
Publication date: 2012-01-25
Anticipated expiration: 2026-06-02
Also published as: JP2007321502A

Description

本発明は、解錠時におけるデッドボルトの引き残しによる解錠障害を解消するストライク構造に関し、特に、デッドボルトを進入させる係止板部が外力によって扉枠に接近する方向に変形可能なストライク構造に用いて好適なものである。 TECHNICAL FIELD The present invention relates to a strike structure that eliminates an unlocking failure caused by a dead bolt remaining during unlocking, and in particular, a strike structure in which a locking plate part into which a dead bolt enters can be deformed in a direction approaching a door frame by an external force. It is suitable for use in.

一般に、マンションなどにおいては、ドア枠に錠受を取付け、この錠受にドア側に設けた施解錠装置のデッドボルトを進退係脱させることにより、施錠や解錠を行う。近年では、地震などの災害発生時にドアを確実に開放させて室外への避難を可能とするため、ドアとドア枠の間に所定のクリアランス（１３ｍｍ程度）を設けている。地震発生時には、ドア枠周辺の壁が破壊され、ドア枠が変形してドアに接触する外力が発生するので、錠受は、所定以上の外力が加えられたとき、上記クリアランスが確保される方向に変形可能とする必要がある。このように、所定以上の外力が発生したとき、錠受を変形させると、ドア枠とドアの間に所定の隙間を確保でき、しかも錠受の係止孔に係止されているドア側のデッドボルトを離脱させることもできるので、ドアの開放が補償されて室外への避難が容易となる。 Generally, in condominiums and the like, locking and unlocking are performed by attaching a lock to a door frame and moving the dead bolt of a locking / unlocking device provided on the door side forward and backward. In recent years, a predetermined clearance (about 13 mm) is provided between the door and the door frame in order to allow the door to be surely opened in the event of a disaster such as an earthquake so that evacuation outside the room is possible. When an earthquake occurs, the walls around the door frame are destroyed, and the door frame deforms to generate an external force that contacts the door.Therefore, the lock is secured in the direction in which the clearance is secured when an external force exceeding a predetermined level is applied. It is necessary to make it deformable. In this way, when an external force exceeding a predetermined value is generated, if the lock is deformed, a predetermined gap can be secured between the door frame and the door, and the door side that is locked in the lock hole of the lock can be secured. Since the deadbolt can be removed, the opening of the door is compensated and the evacuation to the outside becomes easy.

従来では、例えば図１０に示すようなドア用錠受１を用いている。この錠受１は、デッドボルトの係止孔３を形成した本体壁部５と、その上下両側に一体に設けた連結片７，７と、これら連結片７を介して本体壁部５と平行な段状に形成され、ドア枠９の内側面に固定する固定片１１，１１とを備えており、これらは鋼板をプレス加工して形成される。そして、ドア枠９の内面に各固定片１１を固定ビスなどで固定して、本体壁部５の係止孔３にドア側のデッドボルトを係脱させることにより施錠や解錠を行う。 Conventionally, for example, a door lock 1 as shown in FIG. 10 is used. The lock holder 1 includes a main body wall portion 5 in which a dead bolt locking hole 3 is formed, connecting pieces 7 and 7 provided integrally on both upper and lower sides thereof, and parallel to the main body wall portion 5 through the connecting pieces 7. It is formed in a stepped shape and includes fixing pieces 11 and 11 that are fixed to the inner side surface of the door frame 9, and these are formed by pressing a steel plate. Then, each fixing piece 11 is fixed to the inner surface of the door frame 9 with a fixing screw or the like, and the door side dead bolt is engaged with or disengaged from the locking hole 3 of the main body wall portion 5 to perform locking or unlocking.

このドア用錠受１によれば、地震発生時に、ドア枠周辺の壁が破壊され、ドア枠が変形してドアに接触する外力が発生すると、本体壁部５が例えばドア木口に表出する錠箱フロントパネルに押しつけられ、連結片７，７の傾斜角度が小さくなる方向に潰れ、ドア用錠受１が大きな力によってドアに接触し、ドアの開放が不能となる事態を回避できる。このような効果は、ドア用錠受１がドアの室内面に取り付けられる面付け錠タイプの場合においても同様に得ることができる。
特開平１１−６２３３７号公報 According to the door lock 1, when an earthquake occurs, the wall around the door frame is destroyed, and when the door frame is deformed and an external force is generated that comes into contact with the door, the main body wall 5 is exposed to, for example, the door mouth. It is possible to avoid a situation in which the door is pressed against the front panel of the lock box and is crushed in a direction in which the inclination angle of the connecting pieces 7 and 7 is reduced, and the door lock 1 is brought into contact with the door by a large force and the door cannot be opened. Such an effect can be similarly obtained even in the case of the imposition lock type in which the door lock 1 is attached to the interior surface of the door.
JP-A-11-62337

ところで、錠箱から進退作動されるデッドボルトは、錠箱内部に設けられる施解錠機構の作動誤差や、扉の開放動作と略同時に行われる解錠操作（デッドボルトの後退操作）等によって、錠箱内へ完全に後退しないまま先端角部が僅かに突出状態で残る所謂「引き残り」の発生する場合がある。このような引き残りが発生すると、従来の係止穴は、所定厚さのステンレス鋼板などの金属板よりなる係止板部に単に穿設した四角穴であるため、デッドボルト先端角部が、係止穴縁部に噛み、扉を開けることも、デッドボルトを後退させることもできなくなり、特に、地震等災害発生時等では、扉の開放が不能となることでパニックに陥る虞もあった。また、このような引き残りによるデッドボルト先端角部と係止穴の縁部との噛み込みが生じると、折角、係止板部が扉枠に接近可能に構成されたストライク構造であっても、係止板部が有効に変形しない問題が生じた。 By the way, dead bolts that are moved forward and backward from the lock box are locked by an operating error of the locking / unlocking mechanism provided inside the lock box, or by an unlocking operation (dead bolt retracting operation) performed almost simultaneously with the door opening operation. There may be a so-called “pull-out” where the corner of the tip remains slightly protruding without being completely retracted into the box. When such a pulling residue occurs, the conventional locking hole is a square hole simply drilled in a locking plate portion made of a metal plate such as a stainless steel plate of a predetermined thickness. It is impossible to bite into the edge of the locking hole, open the door, or retract the deadbolt, especially in the event of a disaster such as an earthquake, the door could not be opened, resulting in a panic . In addition, even when the dead bolt tip corner and the edge of the locking hole are bitten by such a pulling residue, even when the strike structure is configured such that the folding corner and the locking plate are accessible to the door frame There is a problem that the locking plate portion is not effectively deformed.

本発明は上記状況に鑑みてなされたもので、デッドボルト先端角部が、係止穴の縁部に噛み、扉の開放が不能となる事態が防止できるストライク構造を提供し、もって、緊急時の解錠動作に伴う、扉開放性能の信頼性向上を図ることを目的とする。 The present invention has been made in view of the above situation, and provides a strike structure capable of preventing a situation in which a dead bolt tip corner is engaged with an edge of a locking hole and the door cannot be opened. The purpose is to improve the reliability of the door opening performance associated with the unlocking operation.

次に、上記の課題を解決するための手段を、実施の形態に対応する図面を参照して説明する。
本発明の請求項１記載のストライク構造は、扉枠２５に固定され該扉枠２５の框延在方向に沿って長い矩形状で形成されるとともに、扉に設けられた錠箱から進出するデッドボルト４７を進入させる係止穴４９の穿設された係止板部５１が前記框表面から浮上するように嵩上げされ、外力によって前記係止板部５１が前記框に接近する方向に変形可能な対震ストライク１００を有するストライク構造であって、
前記係止板部５１を中央部に有し該係止板部５１の長手方向両端に該係止板部５１を嵩上げ位置に支持する傾斜当接片部５３を連設して板金材によって一体形成されたストライク本体２１と、該ストライク本体２１に固着され前記係止板部５１が嵩上げされることにより形成された係止板部５１両長辺側の開口空間５５を塞ぎ少なくとも一方が前記係止板部５１から前記框に下る傾斜面で形成された樹脂材からなる一対の塞ぎ部材２３ａ，２３ｂと、を具備している。
前記一対の塞ぎ部材２３ａ，２３ｂは、連結部５９を介して一体的に連結されて成形されており、前記ストライク本体２１が前記一対の塞ぎ部材２３ａ，２３ｂの間に固着され、前記デッドボルト４７の先端面４７ａと、該デッドボルト４７の扉開放側の側面４７ｂとに挟まれる先端角部４７ｃの摺接する滑りガイド手段８１が、前記側面に対向する前記係止穴４９の縁部４９ａに設けられ、滑りガイド手段８１が、前記係止穴４９の縁部４９ａから延出させた舌片部８５を該係止穴４９の奥側へ折り曲げた切り起こし片からなることを特徴とする。 Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The strike structure according to claim 1 of the present invention is formed in a long rectangular shape that is fixed to the door frame 25 and extends along the extending direction of the door frame 25 and advances from a lock box provided on the door. A locking plate portion 51 having a locking hole 49 through which the bolt 47 enters is raised so as to float from the surface of the flange, and the locking plate portion 51 can be deformed in a direction approaching the flange by an external force. A strike structure having anti-seismic strike 100 ,
The locking plate portion 51 is provided in the center portion, and inclined contact pieces 53 that support the locking plate portion 51 in the raised position are connected to both ends in the longitudinal direction of the locking plate portion 51 so as to be integrated by a sheet metal material. The formed strike main body 21 and the opening space 55 on both long sides of the lock plate portion 51 formed by raising the lock plate portion 51 fixed to the strike main body 21 are closed, and at least one of the lock plate portions 51 is the engagement member. And a pair of closing members 23a, 23b made of a resin material formed by an inclined surface that descends from the stop plate portion 51 to the flange.
The pair of blocking members 23a and 23b are integrally formed through a connecting portion 59, and the strike main body 21 is fixed between the pair of blocking members 23a and 23b. The sliding guide means 81 that is in sliding contact with the tip corner portion 47c sandwiched between the tip end surface 47a and the door opening side surface 47b of the dead bolt 47 is provided on the edge portion 49a of the locking hole 49 that faces the side surface. The sliding guide means 81 is formed of a cut-and-raised piece obtained by bending a tongue piece 85 extending from the edge portion 49 a of the locking hole 49 to the back side of the locking hole 49 .

この対震ストライク構造では、面積の大きい開口空間５５が強度の小さい樹脂材により塞がれ、開口空間５５を塞ぐ塞ぎ部材２３ａ，２３ｂが容易に変形することで、係止板部５１の扉枠２５に接近する方向の変形を阻害することがない。また、塞ぎ部材２３ａ，２３ｂの一方が傾斜面５７で形成され、ラッチボルトを後退させるための反力が付与可能になるとともに、係止板部５１の変形時には、一方の塞ぎ部材２３ａが傾斜角度を小さくするように変形して平坦に展開され、係止板部５１の変形を阻害することがない。
また、この対震ストライク構造では、一対の塞ぎ部材２３ａ，２３ｂが一体の一部品で成形可能され、部品点数が少なくなる。また、傾斜面５７となる一方の塞ぎ部材２３ａの傾斜面頂部６１が連結部５９を介して他方の塞ぎ部材２３ｂに支持され、すなわち展開するような方向の変形となって、変形時には一方の塞ぎ部材２３ａが傾斜角度を小さくするように確実に変形する。
さらに、このストライク構造では、例えば地震発生時等、緊急に解錠と扉開放とが行われ、仮に僅かにデッドボルト４７の引き残りが発生していても、引き残りデッドボルト４７の先端角部４７ｃが扉開動力によって、扉の開放方向に位置する滑りガイド手段８１に押圧される。これにより、係止板部５１は扉枠２５に接近する方向へ変位が促され、すなわち扉枠２５との間隔を拡げるとともに、デッドボルト４７は錠箱内へ後退する方向へ押し込められることにもなる。したがって、従来のようにデッドボルト先端角部４７ｃが、角状の係止穴の縁部に噛み、扉９１の開放が不能となる事態が発生しない。 In the anti-seismic strike structure, the opening space 55 having a large area is closed by a resin material having a low strength, and the closing members 23a and 23b that close the opening space 55 are easily deformed, so that the door frame of the locking plate portion 51 is formed. The deformation in the direction approaching 25 is not hindered. In addition, one of the blocking members 23a and 23b is formed with an inclined surface 57, and a reaction force for retracting the latch bolt can be applied, and when the locking plate portion 51 is deformed, the one blocking member 23a is inclined at an angle of inclination. It is deformed so as to be small, and is flattened and does not hinder the deformation of the locking plate portion 51.
Further, in this anti-seismic strike structure, the pair of closing members 23a and 23b can be formed as one integral part, and the number of parts is reduced. Further, the inclined surface top portion 61 of the one blocking member 23a that becomes the inclined surface 57 is supported by the other blocking member 23b via the connecting portion 59, that is, the deformation in a direction in which it expands. The member 23a is reliably deformed so as to reduce the inclination angle.
Furthermore, in this strike structure, for example, when an earthquake occurs, the door is urgently unlocked and the door is opened, and even if the dead bolt 47 is slightly pulled, the tip corner of the dead bolt 47 remains. 47c is pressed by the sliding guide means 81 located in the door opening direction by the door opening power. As a result, the locking plate portion 51 is urged to move closer to the door frame 25, that is, the distance from the door frame 25 is increased, and the dead bolt 47 is pushed back into the lock box. Become. Therefore, unlike the conventional case, the dead bolt tip corner portion 47c bites into the edge portion of the square-shaped locking hole, so that the door 91 cannot be opened.

このストライク構造は、前記滑りガイド手段８１が、前記係止穴４９の縁部４９ａから該係止穴４９の奥側へ連設された凸湾曲部８３であることを特徴とする。 This strike structure is characterized in that the sliding guide means 81 is a convex curved portion 83 provided continuously from the edge portion 49 a of the locking hole 49 to the back side of the locking hole 49.

このストライク構造では、引き残りとなったデッドボルト４７の先端角部４７ｃが、凸湾曲部（Ｒ部）８３に押圧されることで、滑りガイド手段８１が傾斜面である場合よりも円滑な先端角部４７ｃの滑りが可能となる。 In this strike structure, the tip end corner portion 47c of the dead bolt 47 which has remained unreacted is pressed against the convex curved portion (R portion) 83, so that the tip end smoother than when the sliding guide means 81 is an inclined surface. The corner 47c can be slid.

このストライク構造は、前記滑りガイド手段８１が、前記係止穴４９の縁部４９ａから該係止穴４９の奥側へ連設された傾斜部８７であることを特徴とする。 This strike structure is characterized in that the sliding guide means 81 is an inclined portion 87 continuously provided from the edge portion 49 a of the locking hole 49 to the back side of the locking hole 49.

このストライク構造では、滑りガイド手段８１の容易な加工形成が可能となるとともに、Ｒ部に比べ長いガイド面が形成可能となる。 In this strike structure, the sliding guide means 81 can be easily processed and formed, and a longer guide surface than the R portion can be formed.

このストライク構造は、前記滑りガイド手段８１が、前記係止穴４９の縁部４９ａから延出させた舌片部８５を該係止穴４９の奥側へ折り曲げた切り起こし片からなることを特徴とする。 In this strike structure, the sliding guide means 81 is formed of a cut-and-raised piece obtained by bending a tongue piece portion 85 extended from the edge portion 49 a of the locking hole 49 to the back side of the locking hole 49. And

このストライク構造では、係止穴４９の縁部４９ａを構成している同一部材を連続させて形成でき、別部材を付設した場合のような接続部や段部が生じず、連続した面をデッドボルト４７の先端角部４７ｃが滑るようになる。 In this strike structure, the same member constituting the edge portion 49a of the locking hole 49 can be continuously formed, and no connection portion or step portion is formed as in the case where another member is attached, and the continuous surface is dead. The tip corner portion 47c of the bolt 47 comes to slide.

本発明に係る請求項１記載のストライク構造によれば、係止板部を中央部に有しその長手方向両端に傾斜当接片部を連設して板金材によって一体形成されたストライク本体と、このストライク本体に固着され係止板部が嵩上げされることにより形成された開口空間を塞ぐ樹脂材からなる一対の塞ぎ部材とを備えたので、面積の大きい開口空間が強度の小さい樹脂材により塞がれ、開口空間を塞ぎ部材が容易に変形することで、係止板部の扉枠に接近する方向の変形を阻害することがない。また、塞ぎ部材の一方が傾斜面で形成されるので、ラッチボルトを後退させるための反力を付与することができるとともに、係止板部の変形時には、傾斜角度を小さくするように変形して略平坦に展開され、係止板部の変形を阻害することがない。この結果、見栄えの向上と、地震発生時におけるクリアランス確保機能の信頼性向上とを同時に達成することができる。
また、上記一対の塞ぎ部材が、連結部を介して一体的に連結されて成形されたので、一対の塞ぎ部材を一体の一部品で成形でき、部品点数を少なくすることができる。また、傾斜面となる一方の塞ぎ部材の傾斜面頂部が連結部を介して他方の塞ぎ部材に支持されるので、変形時には一方の塞ぎ部材が傾斜角度を小さくするように変形して略平坦に展開され、係止板部の変形を阻害しない。
また、デッドボルトの先端角部の摺接する滑りガイド手段を、係止穴の扉開放方向の縁部に設けたので、例えば地震発生時等、緊急に解錠と扉開放とが行われ、仮に僅かにデッドボルトの引き残りが発生していても、引き残りデッドボルトの先端角部が扉開動力によって滑りガイド手段に押圧され、係止板部は扉枠に接近する方向へ変位が促され、すなわち扉枠との間隔が拡がることとなり、扉の開放方向への移動、つまり扉の開放が可能となる。また同時に、デッドボルトが錠箱内へ後退する方向へ押し込められることにもなる。したがって、従来のようにデッドボルト先端角部が、角状の係止穴の縁部に噛み、扉の開放が不能となる事態を防止することができる。この結果、緊急時の解錠動作に伴う、扉開放性能の信頼性を向上させることができる。 According to the strike structure of the first aspect of the present invention, the strike main body integrally formed of the sheet metal member having the locking plate portion at the center portion and the inclined contact piece portions provided continuously at both longitudinal ends thereof; And a pair of blocking members made of a resin material that closes the opening space formed by being fixed to the strike main body and raising the locking plate portion, so that the opening space having a large area is formed by a resin material having a low strength. It is blocked and the opening space is blocked, and the member is easily deformed, so that deformation of the locking plate portion in the direction approaching the door frame is not hindered. In addition, since one of the closing members is formed with an inclined surface, a reaction force for retracting the latch bolt can be applied, and when the locking plate portion is deformed, it is deformed to reduce the inclination angle. It is deployed substantially flat and does not hinder the deformation of the locking plate portion. As a result, it is possible to simultaneously improve the appearance and improve the reliability of the clearance ensuring function when an earthquake occurs.
Further, since the pair of closing members are integrally connected via the connecting portion and formed, the pair of closing members can be formed as a single integral part, and the number of parts can be reduced. In addition, since the top of the inclined surface of the one blocking member that becomes the inclined surface is supported by the other blocking member via the connecting portion, one of the blocking members is deformed so as to reduce the inclination angle during deformation, and becomes substantially flat. Deployed and does not hinder the deformation of the locking plate.
In addition, since the sliding guide means that comes into sliding contact with the tip corner of the dead bolt is provided at the edge of the locking hole in the door opening direction, for example, when an earthquake occurs, the unlocking and door opening are performed urgently. Even if the dead bolt remains slightly, the tip corner of the remaining dead bolt is pressed by the sliding guide means by the door opening power, and the locking plate is urged to move closer to the door frame. That is, the distance from the door frame is increased, and the door can be moved in the opening direction, that is, the door can be opened. At the same time, the dead bolt is pushed in the direction of retracting into the lock box. Accordingly, it is possible to prevent a situation in which the corner of the dead bolt tip bites into the edge of the rectangular locking hole and the door cannot be opened as in the prior art. As a result, the reliability of the door opening performance associated with the unlocking operation in an emergency can be improved.

滑りガイド手段を、係止穴の縁部から係止穴の奥側へ連設された凸湾曲部とすることにより、引き残りとなったデッドボルトの先端角部が、凸湾曲部（Ｒ部）に押圧されることで、滑りガイド手段が傾斜面である場合よりも円滑な先端角部の滑りを実現させることができ、噛み込みを生じ難くできる。 The sliding guide means, by a convex curved portion that is continuously provided from the edge of the locking hole to the far side of the locking hole, the tip angle portion of the dead bolt became pull rest, convexly curved portion (R portion ), It is possible to realize smoother sliding of the tip corner than when the sliding guide means is an inclined surface, and it is possible to prevent biting.

滑りガイド手段を、係止穴の縁部から係止穴の奥側へ連設された傾斜部とすることにより、容易に加工形成することが可能となるとともに、Ｒ部に比べ長いガイド面が容易に形成可能となる。 The sliding guide means, by an inclined portion which is continuously provided from the edge of the locking hole to the far side of the locking hole, it becomes possible to easily processed form, the long guide surface as compared to the R portion It can be easily formed.

滑りガイド手段を、係止穴の縁部から延出させた舌片部を係止穴の奥側へ折り曲げた切り起こし片とすることにより、同一部材を連続させて形成でき、別部材を付設した場合のように接続部がなく、高強度で円滑な滑りを可能にすることができる。 The sliding guide means, by a cut-and-raised piece formed by bending the tongue portion is extended from the edge of the locking hole to the far side of the locking hole can be formed continuously by the same member, attaching a separate member There is no connection as in the case, and it is possible to enable smooth sliding with high strength.

以下、本発明に係るストライク構造の好適な実施の形態を図面を参照して詳細に説明する。
図１は本発明に係るストライク構造の外観斜視図、図２は図１に示したストライク本体及び塞ぎ部材の分解斜視図、図３は図１に示したストライク構造の縦断面図、図４は図３のＡ−Ａ矢視図、図５は図４のストライク本体及び塞ぎ部材を除いた正面図、図６は図４のＢ−Ｂ矢視図、図７は滑りガイド手段が傾斜部となった変形例の断面図である。
本発明に係るストライク構造は、扉に設けられた錠箱から進出するデッドボルトを進入させる係止穴の穿設された係止板部が、扉枠の扉木口に対向する面から浮上するように嵩上げされ、外力によって係止板部が扉枠に接近する方向に変形可能なストライクに適用される。以下にこのような構成を有するストライク１００の例を説明するが、本発明は、以下の例に限定されるものではなく、上記のような変形機能を有するストライクであれば如何なる構成のものに適用されてもよい。 Hereinafter, preferred embodiments of a strike structure according to the present invention will be described in detail with reference to the drawings.
1 is an external perspective view of a strike structure according to the present invention, FIG. 2 is an exploded perspective view of a strike body and a closing member shown in FIG. 1, FIG. 3 is a longitudinal sectional view of the strike structure shown in FIG. 3 is a front view excluding the strike main body and the closing member, FIG. 6 is a view taken along the line BB in FIG. 4, and FIG. It is sectional drawing of the modification which became.
In the strike structure according to the present invention, the locking plate portion in which the locking hole for entering the dead bolt that advances from the lock box provided in the door is lifted from the surface of the door frame facing the door mouth. And applied to a strike that can be deformed in the direction in which the locking plate portion approaches the door frame by an external force. An example of the strike 100 having such a configuration will be described below, but the present invention is not limited to the following example, and any strike configuration having the above-described deformation function can be applied. May be.

本実施の形態によるストライク１００は、図１、図２に示すストライク本体２１と、一対の塞ぎ部材２３ａ，２３ｂとを備える。図３に示すように、扉枠２５には凹状の収容空間２７を有するトロヨケ２９が、上下の固定フランジ部２９ａ，２９ｂを介してビス３１により固定される。このトロヨケ２９の内部には、略相似形に形成された箱状の可動部材３３が、後退間隙３５を有して収容されている。 A strike 100 according to the present embodiment includes a strike main body 21 shown in FIGS. 1 and 2 and a pair of closing members 23a and 23b. As shown in FIG. 3, a trolley 29 having a concave accommodation space 27 is fixed to the door frame 25 with screws 31 via upper and lower fixing flange portions 29a and 29b. A box-like movable member 33 formed in a substantially similar shape is accommodated in the inside of the troquet 29 with a receding gap 35.

可動部材３３の長手方向（図３の上下方向）両端には略箱状に形成された一対の補強部材３７ａ，３７ｂが収容されている。補強部材３７ａ，３７ｂは、可動部材３３の上端及び下端から挿入された固定ビス３９により、可動部材３３の内で固定される。可動部材３３の上部、下部にはビス３９，３９を介して位置規制部材４１，４１が共締めされ、位置規制部材４１，４１は先端をトロヨケ２９の内部天井面、及び底面に当接することで、可動部材３３をトロヨケ２９の上下方向中央に位置規制している。 A pair of reinforcing members 37a and 37b formed in a substantially box shape are accommodated at both ends of the movable member 33 in the longitudinal direction (vertical direction in FIG. 3). The reinforcing members 37 a and 37 b are fixed inside the movable member 33 by fixed screws 39 inserted from the upper end and the lower end of the movable member 33. Position restricting members 41, 41 are fastened to the upper and lower portions of the movable member 33 via screws 39, 39, and the position restricting members 41, 41 are brought into contact with the inner ceiling surface and the bottom surface of the trolley 29. The position of the movable member 33 is restricted to the center in the vertical direction of the trolley 29.

可動部材３３及びそれぞれの補強部材３７ａ，３７ｂの側面には係合穴４３が穿設され、係合穴４３にはトロヨケ２９の両側面から内方に向けて突出した４つの突起４５が挿入されている。これにより、可動部材３３は、後退間隙３５を縮める方向への移動が可能となるとともに、トロヨケ２９からの脱落が規制されている。 Engagement holes 43 are formed in the side surfaces of the movable member 33 and the respective reinforcing members 37a and 37b, and four protrusions 45 projecting inward from both side surfaces of the trowel 29 are inserted into the engagement holes 43. ing. Accordingly, the movable member 33 can move in the direction in which the receding gap 35 is shortened, and is prevented from dropping from the trolley 29.

図１に示したストライク本体２１と塞ぎ部材２３ａ，２３ｂは、扉枠２５の框延在方向に沿って長い矩形状で形成される。ストライク本体２１は、図示しない扉に設けられた錠箱から進出するデッドボルト４７を進入させる係止穴４９の穿設された係止板部５１を有する。ストライク本体２１は、長手方向両端に連設された傾斜当接片部５３，５３によって、係止板部５１が扉枠２５から浮上するように嵩上げされて配置される。係止板部５１と一対の傾斜当接片部５３，５３とは、ステンレス等の板金材によって一体形成される。 The strike main body 21 and the closing members 23 a and 23 b shown in FIG. 1 are formed in a long rectangular shape along the extending direction of the door frame 25. The strike main body 21 has a locking plate portion 51 having a locking hole 49 through which a dead bolt 47 that advances from a lock box provided on a door (not shown) is inserted. The strike main body 21 is disposed so as to be raised so that the locking plate portion 51 floats from the door frame 25 by inclined contact pieces 53 and 53 that are continuously provided at both ends in the longitudinal direction. The locking plate portion 51 and the pair of inclined contact pieces 53, 53 are integrally formed of a sheet metal material such as stainless steel.

一対の塞ぎ部材２３ａ，２３ｂは、ストライク本体２１に固着され、係止板部５１が嵩上げされることにより形成された係止板部両長辺側の開口空間５５を塞ぐ。一対の塞ぎ部材２３ａ，２３ｂの少なくとも一方２３ａは、好ましくは扉の開く方向の面側となる一方は、係止板部５１から扉枠２５に下る傾斜面５７で形成されている。 The pair of blocking members 23a and 23b are fixed to the strike main body 21 and block the opening space 55 on both long sides of the locking plate portion formed by raising the locking plate portion 51. At least one of the pair of closing members 23a, 23b is preferably formed with an inclined surface 57 that descends from the locking plate portion 51 to the door frame 25, which is the surface side in the door opening direction.

この一対の塞ぎ部材２３ａ，２３ｂは、図２に示すように、本実施の形態では一対の連結部５９，５９を介して樹脂材により一体的に連結されて成形される。樹脂材としては、例えばＡＡＳなどの耐候性・耐衝撃性を有する合成樹脂を好適に用いることができる。このように、一対の塞ぎ部材２３ａ，２３ｂを、連結部５９を介して一体的に連結成形することで、一対の塞ぎ部材２３ａ，２３ｂを一体の一部品で成形でき、部品点数を少なくすることができる。また、傾斜面５７となる一方の塞ぎ部材２３ａの傾斜面頂部６１が連結部５９を介して他方の塞ぎ部材２３ｂに支持されるので、変形時には一方の塞ぎ部材２３ａが傾斜角度を小さくするように変形して平坦に展開され、係止板部５１の変形を阻害しない。 As shown in FIG. 2, the pair of blocking members 23 a and 23 b are integrally connected by a resin material via a pair of connecting portions 59 and 59 in the present embodiment. As the resin material, for example, a synthetic resin having weather resistance and impact resistance such as AAS can be suitably used. Thus, by integrally connecting and forming the pair of blocking members 23a and 23b via the connecting portion 59, the pair of blocking members 23a and 23b can be formed as a single integral part, and the number of parts can be reduced. Can do. In addition, since the inclined surface top portion 61 of the one blocking member 23a which becomes the inclined surface 57 is supported by the other blocking member 23b via the connecting portion 59, the one blocking member 23a reduces the inclination angle at the time of deformation. It is deformed and flattened and does not hinder the deformation of the locking plate portion 51.

連結部５９には複数、本実施の形態では２つの凸部６３が突設され、上下一対の両連結部５９にて凸部６３が４つ突設される。ストライク本体２１には各凸部６３が嵌入する複数、本実施の形態では４つの貫通固定孔６５が穿設される。ストライク本体２１と塞ぎ部材２３ａ，２３ｂは、貫通固定孔６５に嵌入させた凸部６３を加締めて一体に固着される。このように、貫通固定孔６５に嵌入させた凸部６３を加締め、塞ぎ部材２３ａ，２３ｂをストライク本体２１に固着することで、ストライク本体２１と塞ぎ部材２３ａ，２３ｂとの固着構造が簡素となるとともに、固定部を点在させることができ、変形時における係止板部５１への拘束力を小さくして、係止板部５１の変形を阻害しないようにできる。 A plurality of, in the present embodiment, two convex portions 63 project from the connecting portion 59, and four convex portions 63 project from the pair of upper and lower connecting portions 59. The strike main body 21 is provided with a plurality of through-fixing holes 65 into which the protrusions 63 are fitted, in the present embodiment. The strike main body 21 and the closing members 23a and 23b are integrally fixed by caulking the convex portion 63 fitted into the through-fixing hole 65. In this way, the convex structure 63 fitted in the through-fixing hole 65 is crimped and the closing members 23a and 23b are fixed to the strike main body 21, thereby simplifying the fixing structure between the strike main body 21 and the closing members 23a and 23b. In addition, the fixing portions can be interspersed, and the restraining force on the locking plate portion 51 during deformation can be reduced so that the deformation of the locking plate portion 51 is not hindered.

また、図２に示すように、ストライク本体２１の外縁２１ａが接する塞ぎ部材２３ａ，２３ｂの縁部には、ストライク本体２１の外縁２１ａの裏面側を当接支持する段部６７が設けられている。このように、ストライク本体２１の外縁２１ａが接する塞ぎ部材２３ａ，２３ｂの縁部に、外縁２１ａを当接支持する段部６７を設けることで、係止板部５１が扉枠２５に接近する方向に変形する際、係止板部５１の変位に追従して外縁２１ａによって段部６７が押圧される。これにより、塞ぎ部材２３ａ，２３ｂが変形し、特に傾斜面５７となった一方の塞ぎ部材２３ａは、傾斜下縁が外方向に滑ることとなって、傾斜角度を小さくするように変形して略平坦に展開され、係止板部５１の変形を阻害しなくなる。 In addition, as shown in FIG. 2, a stepped portion 67 that abuts and supports the back side of the outer edge 21 a of the strike main body 21 is provided at the edge of the closing members 23 a and 23 b that contact the outer edge 21 a of the strike main body 21. . Thus, by providing the stepped portion 67 that abuts and supports the outer edge 21 a at the edge of the closing members 23 a and 23 b with which the outer edge 21 a of the strike body 21 contacts, the direction in which the locking plate portion 51 approaches the door frame 25. When deforming, the stepped portion 67 is pressed by the outer edge 21a following the displacement of the locking plate portion 51. As a result, the blocking members 23a and 23b are deformed, and in particular, the one blocking member 23a which has become the inclined surface 57 is deformed so that the inclined lower edge is slid outward, and the inclined angle is reduced. It is flatly developed and does not hinder the deformation of the locking plate portion 51.

一体に固着されたストライク本体２１と塞ぎ部材２３ａ，２３ｂは、ストライク本体２１に穿設された固定孔６９，６９に、ビス７１，７１が挿入され、このビス７１，７１が補強部材３７ａ，３７ｂに設けられた図３に示すネジ孔７３，７３に螺合することで、可動部材３３に固定される。可動部材３３に固定されたストライク本体２１は、図４に示す係止穴４９が、可動部材３３の図５に示す係止穴７５に一致する。 The strike main body 21 and the blocking members 23a and 23b, which are fixed integrally, have screws 71 and 71 inserted in fixing holes 69 and 69 formed in the strike main body 21, and the screws 71 and 71 are the reinforcing members 37a and 37b. 3 is fixed to the movable member 33 by being screwed into the screw holes 73, 73 shown in FIG. In the strike main body 21 fixed to the movable member 33, the locking hole 49 shown in FIG. 4 coincides with the locking hole 75 shown in FIG. 5 of the movable member 33.

ストライク本体２１が可動部材３３に螺着固定された状態で、図３に示すように、ストライク本体２１の傾斜当接片部５３の下端は、扉枠２５に当接する。また、図６に示すように、塞ぎ部材２３ａ，２３ｂの下端も扉枠２５に当接する。これにより、一体となったストライク本体２１及び可動部材３３は、扉枠２５から離反する方向の移動が突起４５により規制されるとともに、扉枠２５に接近する方向の移動が傾斜当接片部５３及び塞ぎ部材２３ａ，２３ｂによって規制されている。そして、この状態で、可動部材３３は、略半部がトロヨケ２９内に位置し、ストライク本体２１と螺着固定されている側の略半部が扉枠２５より突出して、その突出部分の周囲を、ストライク本体２１の傾斜当接片部５３と塞ぎ部材２３ａ，２３ｂとで覆うようになる。また、この状態では、図３に示すようにデッドボルト４７が進出している状態でストライク本体２１の係止穴４９のみではなく、可動部材３３内にも位置することとなる。 With the strike main body 21 screwed and fixed to the movable member 33, the lower end of the inclined contact piece 53 of the strike main body 21 contacts the door frame 25 as shown in FIG. 3. Further, as shown in FIG. 6, the lower ends of the closing members 23 a and 23 b are also in contact with the door frame 25. Thereby, the movement of the strike main body 21 and the movable member 33 that are integrated with each other in the direction away from the door frame 25 is restricted by the protrusion 45, and the movement in the direction of approaching the door frame 25 is inclined contact piece 53. And it is regulated by the blocking members 23a and 23b. In this state, the movable member 33 has a substantially half portion located in the troyoke 29, and a substantially half portion on the side screwed and fixed to the strike main body 21 protrudes from the door frame 25. Is covered with the inclined contact piece 53 of the strike body 21 and the closing members 23a and 23b. Further, in this state, as shown in FIG. 3, when the dead bolt 47 is advanced, the dead bolt 47 is located not only in the locking hole 49 of the strike main body 21 but also in the movable member 33.

図３に示すように、デッドボルト４７は、略角柱形状であり、先端面４７ａと、扉開放側の側面４７ｂとに挟まれる隅部が先端角部４７ｃとなる。一方、ストライク本体２１には、側面４７ｂに対向する係止穴４９の縁部４９ａに滑りガイド手段８１が設けられている。本実施の形態において、滑りガイド手段８１は、係止穴４９の縁部４９ａから係止穴４９の奥側へ連設された凸湾曲部（Ｒ部）８３となる。凸湾曲部８３は、引き残りとなったデッドボルト４７の先端角部４７ｃが押圧された際、平坦な傾斜面である場合よりも円滑な先端角部４７ｃの滑りを実現させることができ、噛み込みを生じ難くしている。 As shown in FIG. 3, the dead bolt 47 has a substantially prismatic shape, and a corner between the tip surface 47a and the side surface 47b on the door opening side is a tip corner portion 47c. On the other hand, the strike main body 21 is provided with a sliding guide means 81 at an edge portion 49a of the locking hole 49 facing the side surface 47b. In the present embodiment, the sliding guide means 81 is a convex curved portion (R portion) 83 provided continuously from the edge portion 49 a of the locking hole 49 to the back side of the locking hole 49. The convex curved portion 83 can realize smoother sliding of the tip corner portion 47c than the case of a flat inclined surface when the tip corner portion 47c of the dead bolt 47 that has been pulled is pressed. It is hard to produce a confusion.

滑りガイド手段８１は、係止穴４９の縁部４９ａから延出させた図６に示す舌片部８５を、係止穴４９の奥側へ折り曲げた切り起こし片によって形成することができる。このような切り起こし構造とすれば、係止穴４９の縁部４９ａを構成している同一部材を連続させて形成でき、別部材を付設した場合のような接続部や段部が生じない。これにより、滑りガイド手段８１の高強度で円滑な滑りを可能にしている。 The sliding guide means 81 can be formed by a cut and raised piece obtained by bending the tongue piece portion 85 shown in FIG. 6 extended from the edge portion 49 a of the locking hole 49 toward the back side of the locking hole 49. With such a cut-and-raised structure, the same member constituting the edge portion 49a of the locking hole 49 can be formed continuously, and no connection portion or stepped portion as in the case where another member is attached is generated. As a result, the sliding guide means 81 can smoothly slide with high strength.

なお、滑りガイド手段８１は、この他、図７に示すように、係止穴４９の縁部４９ａから係止穴４９の奥側へ連設された傾斜部８７であってもよい。このような傾斜部８７による滑りガイド手段８１とすれば、容易に加工形成することが可能となるとともに、Ｒ部に比べ長いガイド面が容易に形成可能となる。 In addition, as shown in FIG. 7, the sliding guide means 81 may be an inclined portion 87 continuously provided from the edge portion 49 a of the locking hole 49 to the back side of the locking hole 49. By using the sliding guide means 81 with such an inclined portion 87, it is possible to easily form and form a guide surface that is longer than the R portion.

次に、上記のように構成されたストライク構造の作用を説明する。
図８は外力によりストライク本体及び塞ぎ部材が変形した状態の縦端面図、図９は図８のＣ−Ｃ矢視における先端角部当接状態を（ａ）、扉開放状態を（ｂ）に表した動作説明図である。
上記のストライク１００の取り付けられた扉枠２５が、地震等により変形し、扉枠２５と扉木口２６、或いは扉枠２５と扉付設の面付け錠２８との間隔を狭める変形が生じた場合、ストライク１００のストライク本体２１には、扉枠２５に接近する方向の圧力が加わる。 Next, the operation of the strike structure configured as described above will be described.
FIG. 8 is a longitudinal end view of the strike body and the closing member deformed by an external force, and FIG. 9 is a state in which the front end corner abuts in the direction of arrows CC in FIG. It is operation | movement explanatory drawing represented.
When the door frame 25 to which the strike 100 is attached is deformed by an earthquake or the like, and the door frame 25 and the door mouth 26 or the door frame 25 and the imposition lock 28 with the door are deformed is deformed, Pressure in a direction approaching the door frame 25 is applied to the strike main body 21 of the strike 100.

ストライク１００では、このような外力が加わると、先ず、ストライク本体２１の傾斜当接片部５３が傾斜角度を小さくする方向に、すなわち拡がるように、略平坦に展開されて変形する。これにより、扉枠２５からの嵩上げ寸法Ｈが縮められることとなる。 In the strike 100, when such an external force is applied, first, the inclined contact piece 53 of the strike body 21 is expanded and deformed substantially flat so as to decrease the inclination angle, that is, expand. Thereby, the raising dimension H from the door frame 25 will be shortened.

また、この際同時にストライク本体２１と一体となった塞ぎ部材２３ａ，２３ｂも、傾斜面５７の角度が小さくなる方向に、略平坦に変形展開される。また、これらのストライク本体２１及び塞ぎ部材２３ａ，２３ｂの変形変位に応じ、可動部材３３は、凸部６３に対して係合穴４３が移動することで、トロヨケ２９の後退間隙３５を縮める方向に押し込められることとなる。 At this time, the closing members 23a and 23b integrated with the strike body 21 at the same time are also deformed and deployed substantially flat so that the angle of the inclined surface 57 becomes smaller. In addition, the movable member 33 moves in the direction in which the retracting gap 35 of the troyoke 29 is shortened by moving the engagement hole 43 with respect to the convex portion 63 according to the deformation displacement of the strike body 21 and the blocking members 23a and 23b. It will be pushed in.

このように、ストライク１００では、面積の大きい開口空間５５が強度の小さい樹脂材により塞がれ、開口空間５５を塞ぐ塞ぎ部材２３ａ，２３ｂが容易に変形することで係止板部５１の扉枠２５に接近する方向の変形を阻害することがない。また、塞ぎ部材２３ａ，２３ｂの一方が傾斜面５７で形成され、図示しないラッチボルトを後退させるための反力が付与可能になるとともに、係止板部５１の変形時には、一方の塞ぎ部材２３ａが傾斜角度を小さくするように変形して平坦に展開され、係止板部５１の変形を阻害することがない。この結果、見栄えの向上と、地震発生時におけるクリアランス確保機能の信頼性向上とを同時に達成することができる。 As described above, in the strike 100, the opening space 55 having a large area is closed by the resin material having a low strength, and the closing members 23a and 23b that close the opening space 55 are easily deformed, whereby the door frame of the locking plate portion 51 is obtained. The deformation in the direction approaching 25 is not hindered. In addition, one of the blocking members 23a and 23b is formed by the inclined surface 57, so that a reaction force for retracting a latch bolt (not shown) can be applied, and when the locking plate portion 51 is deformed, It is deformed so as to reduce the inclination angle and is flattened and does not hinder the deformation of the locking plate portion 51. As a result, it is possible to simultaneously improve the appearance and improve the reliability of the clearance ensuring function when an earthquake occurs.

一方、地震発生時等において、扉枠２５が未だ変形していない、或いは、未だ大きく変形していない場合であっても、解錠操作と、扉９１の開動とが同時に行われ、引き残りが発生すると、図９（ａ）に示すように、デッドボルト４７の先端角部４７ｃが、滑りガイド手段８１の凸湾曲部８３に当接する。この状態で、扉９１が開動されると、デッドボルト４７の先端角部４７ｃが扉開動力によって凸湾曲部８３を押圧する。これにより、塞ぎ部材２３ａ，２３ｂは扉枠２５に接近する方向へ変位が促され、展開方向に変形することとなる。また、同時に、デッドボルト４７を錠箱内へ後退する方向に押し込む力も発生する。そして、図９（ｂ）に示すように、扉９１は開放となる。 On the other hand, even when the door frame 25 is not yet deformed or has not yet largely deformed in the event of an earthquake, the unlocking operation and the opening of the door 91 are performed at the same time. When this occurs, the tip corner portion 47c of the dead bolt 47 abuts on the convex curved portion 83 of the sliding guide means 81 as shown in FIG. When the door 91 is opened in this state, the tip corner portion 47c of the dead bolt 47 presses the convex curved portion 83 by the door opening power. As a result, the closing members 23a and 23b are urged to move in the direction approaching the door frame 25 and deformed in the deployment direction. At the same time, a force that pushes the dead bolt 47 back in the lock box is also generated. Then, as shown in FIG. 9B, the door 91 is opened.

このように、上記のストライク１００によれば、外力によって係止板部５１が扉枠２５に接近する方向に変形可能なストライク構造において、デッドボルト４７の先端角部４７ｃの摺接する滑りガイド手段８１を、係止穴４９の縁部４９ａに設けたので、例えば地震発生時等、緊急に解錠と扉開放とが行われ、仮に僅かにデッドボルト４７の引き残りが発生していても、引き残りデッドボルト４７の先端角部４７ｃが扉開動力によって滑りガイド手段８１に押圧され、係止板部５１は扉枠２５に接近する方向へ変位が促されることとなる。また、同時に、デッドボルト４７が錠箱内へ後退する方向へ押し込められることにもなる。したがって、従来のようにデッドボルト先端角部４７ｃが、角状の係止穴の縁部に噛み、扉９１の開放が不能となる事態を防止することができる。この結果、扉９１は開放可能となり、緊急時の解錠動作に伴う、扉開放性能の信頼性を向上させることができる。 As described above, according to the strike 100 described above, in the strike structure that can be deformed in the direction in which the locking plate portion 51 approaches the door frame 25 by an external force, the sliding guide means 81 that is in sliding contact with the tip corner portion 47 c of the dead bolt 47. Is provided at the edge 49a of the locking hole 49, so that, for example, when an earthquake occurs, the door is urgently unlocked and the door is opened, and even if the dead bolt 47 remains slightly pulled, The tip end corner portion 47c of the remaining dead bolt 47 is pressed by the sliding guide means 81 by the door opening power, and the locking plate portion 51 is urged to move in the direction approaching the door frame 25. At the same time, the dead bolt 47 is pushed in the direction of retreating into the lock box. Accordingly, it is possible to prevent a situation in which the dead bolt tip corner portion 47c bites into the edge portion of the rectangular locking hole and the door 91 cannot be opened as in the conventional case. As a result, the door 91 can be opened, and the reliability of the door opening performance associated with the unlocking operation in an emergency can be improved.

なお、上記の実施の形態では、ストライク本体２１と塞ぎ部材２３ａ，２３ｂとを凸部６３の加締めにより固着する例を説明したが、ストライク本体２１と塞ぎ部材２３ａ，２３ｂとは、加締め以外に、ビスによる螺着、接着剤による接着、凸部６３を溶融変形させる溶着、或いはストライク本体２１を塞ぎ部材２３ａ，２３ｂによって覆うように被せる被着であってもよい。 In the above embodiment, the strike body 21 and the closing members 23a and 23b are fixed by caulking the convex portion 63. However, the strike body 21 and the closing members 23a and 23b are other than caulking. In addition, screwing with screws, adhesion with an adhesive, welding for melting and deforming the convex portion 63, or deposition for covering the strike body 21 with the closing members 23a and 23b may be used.

また、本発明に係るストライク構造は、錠箱が扉に内設される扉内設錠、或いは錠箱が扉面に表出して取り付けられる面付け錠の何れにも適して同様の効果を奏するものである。 In addition, the strike structure according to the present invention is suitable for both a lock in the door in which the lock box is installed in the door or an imposition lock in which the lock box is exposed and attached to the door surface and has the same effect. Is.

本発明に係るストライク構造の外観斜視図である。1 is an external perspective view of a strike structure according to the present invention. 図１に示したストライク本体及び塞ぎ部材の分解斜視図である。FIG. 2 is an exploded perspective view of a strike main body and a closing member shown in FIG. 1. 図１に示したストライク構造の縦断面図である。It is a longitudinal cross-sectional view of the strike structure shown in FIG. 図３のＡ−Ａ矢視図である。It is an AA arrow line view of FIG. 図４のストライク本体及び塞ぎ部材を除いた正面図である。FIG. 5 is a front view of the strike main body and the closing member of FIG. 4 removed. 図４のＢ−Ｂ矢視図である。It is a BB arrow line view of FIG. 滑りガイド手段が傾斜部となった変形例の断面図である。It is sectional drawing of the modification in which the sliding guide means became the inclination part. 外力によりストライク本体及び塞ぎ部材が変形した状態の縦端面図である。It is a longitudinal end view of the state where the strike body and the closing member are deformed by an external force. 図８のＣ−Ｃ矢視における先端角部当接状態を（ａ）、扉開放状態を（ｂ）に表した動作説明図である。It is operation | movement explanatory drawing which represented the front-end | tip corner | angular part contact state in CC arrow of FIG. 8 to (a), and represented the door open state to (b). 従来の対震ストライクの斜視図である。It is a perspective view of the conventional anti-seismic strike.

２５…扉枠
４７…デッドボルト
４７ａ…先端面
４７ｂ…側面
４７ｃ…先端角部
４９…係止穴
４９ａ…係止穴の縁部
５１…係止板部
８１…滑りガイド手段
８３…凸湾曲部
８５…舌片部
８７…傾斜部
９１…扉
１００…ストライク 25 ... Door frame 47 ... Dead bolt 47a ... End face 47b ... Side face 47c ... End corner 49 ... Locking hole 49a ... Edge of locking hole 51 ... Locking plate part 81 ... Sliding guide means 83 ... Convex curve part 85 ... tongue part 87 ... inclined part 91 ... door 100 ... strike

Claims

A lock that is fixed to the door frame and is formed in a long rectangular shape along the extending direction of the door frame, and is provided with a lock hole that allows a dead bolt that advances from a lock box provided on the door to enter. Strike structure having an anti-seismic strike that is raised so that the plate portion floats from the surface of the heel, and the locking plate portion can be deformed in a direction approaching the heel by an external force ,
Strike integrally formed of a sheet metal material by connecting the locking plate portion in the center and connecting inclined contact pieces that support the locking plate portion in the raised position at both longitudinal ends of the locking plate portion. The body,
The locking plate part formed by raising the locking plate part fixed to the strike body closes the opening space on both long sides of the locking plate part, and at least one is formed by an inclined surface that descends from the locking plate part to the flange. A pair of blocking members made of a resin material made,
Comprising
The pair of blocking members are integrally connected via a connecting portion and molded.
The strike body is fixed between the pair of blocking members;
Wherein the front end surface of the dead bolt, sliding contact sliding guide means of the front end corner portion sandwiched between the side surface of the door opening side of the dead bolt, provided at the edge of the locking hole facing the side sliding guide The strike structure characterized in that the means comprises a cut-and-raised piece obtained by bending a tongue piece extending from the edge of the locking hole to the back side of the locking hole .