JP2004238799A

JP2004238799A - Internal unlocking device of door structure

Info

Publication number: JP2004238799A
Application number: JP2003025840A
Authority: JP
Inventors: Shiro Segawa; 志朗瀬川
Original assignee: Takigen Manufacturing Co Ltd
Current assignee: Takigen Manufacturing Co Ltd
Priority date: 2003-02-03
Filing date: 2003-02-03
Publication date: 2004-08-26
Anticipated expiration: 2023-02-03
Also published as: CN100557180C; KR20040070423A; TW200415294A; TWI224166B; HK1067680A1; KR100571700B1; CN1519452A; JP4009538B2

Abstract

<P>PROBLEM TO BE SOLVED: To provide an internal unlocking device by which one can get out of a door to the outside in an emergency in a door structure through which one can usually get in the door from the outside or get out to the outside. <P>SOLUTION: In the internal unlocking device for a door structure, a handle is formed in the door to latch on the frame body like a support or unlatch. In the inside of the door, a base board rotating up and down by the vertical movement of the hook of the handle and an operating board latched at the front end are provided through a spring. By laterally moving the operating board in an emergency, one can escape out of the door by unlatching from the frame body. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
本発明は、平面ハンドルやレバーハンドルなど外側ハンドルを扉の外側から廻して、躯体や筐体又は支柱などの本体から掛金を外すことで、扉を開閉する戸構造において、扉の内側からでも緊急脱出できる戸構造の内部解錠装置に関する。
【０００２】
【従来の技術】
従来のレバーハンドルは、特開２００３−３７００号公報及び特開平９−３２３８２号公報などや、添付図面の図７乃至図１０のように、扉面と略同一面としての平面ハンドルを原則として扉の外側からハンドルを操作して（鍵付と鍵なしがある）、扉の内側に入るものであった。この平面ハンドルとは別に、特開平６−３４６６４１号公報などの扉の外側から突出したレバーハンドルなど扉面から突出したハンドルを操作して扉内に入るものも存在した。
【０００３】
上記平面ハンドルにおける従来例を、添付の図７乃至図１０により説明する。これらの図のうち図７は錠前としての平面ハンドル５０の縦断面図であり、図８は図７の平面ハンドル５０を扉５１に取り付けて、その掛金５９を支柱など固定側の本体５２に掛けている状態の斜視図である。図９は図７の状態からフック５３を下げた状態を示し、図１０は図９の平面ハンドル５０を扉に取り付けて本体から掛金５９を外した状態を現わす。
図７では、平面ハンドル５０の筐体５４にビス孔５５，５６を有し、これらに図８に示すビス５７，５８を入れて扉５１に取り付ける。そこで、平面ハンドル５０が扉５１の縦長溝６５と本体５０の縦長溝６６に掛金５９が掛けわたされて、扉５１を本体５０にロックしている状態を説明する。ハンドル６０は鍵によりプレートを筐体５４に引っ掛けることで（図示せず）、スプリング６１の反発力に抗してハンドル６０は、筐体５４内に収められている。この状態では鍵を回転してプレートを廻すことで、プレートを筐体５４より外してもハンドル６０はバネ６２が筐体５４に前後方向に枢着している（図示せず）押ボタン６７を時計方向に付勢されることで、切欠部６３において、ハンドル６０はその軸６４に取り付けたスプリング６１に抗した状態を保持して動かない。
【０００４】
つぎに、上記図７と図８で、固定したハンドル６０を図９と図１０に示すように、ハンドル６０を跳ね上げて軸６１で時計方向に回転したフック５３により、掛金５９を本体５２の縦長溝６６から外すことで扉５１を本体５２から開放する。
これをより具体的に説明すると、鍵を開けて錠を筐体５４から外した後のハンドル６０は図７と図８の状態にあるが、この状態で押ボタン６７をバネ６２の反発力に抗して図９に示す矢印方向に押すことで、押ボタン６７がバネ６２の軸６８を中心に廻るために上記切欠部６３で係合していたハンドル６０は押ボタン６７から外れ、スプリング６１により軸６４を中心にしてハンドル６０は跳ね上がる。このハンドル６０の跳ね上がりによってフック５３は軸６４を中心に時計方向に回転して下がる。このフック５３が下がることで、平面ハンドルの筐体５４に枢着している掛金５９はビス７０を中心にビス７１が雲形の穴部６９内の下方位置に至るまで時計の回転方向に回転することで、掛金５９は本体５２の縦長溝６６から外れて、扉５１はハンドル６０が飛び出た方に開くことができる。
【０００５】
【特許文献１】
特開２００３−３７００号公報
【特許文献２】
特開平９−３２３８２号公報
【特許文献３】
特開平６−３４６６４１号公報
【０００６】
【発明が解決しようとする課題】
しかしながら、上記従来のものは分電盤や金庫など外側から解錠してから容易に内部へ入ることができるものの、内側に人が入っているのに誤って鍵を掛けてしまったり、自動的に扉が閉った場合には、内側から錠前を分解するなど工具を使用して外へ出られなくはないものの、工具を持っていなかったり、内部が暗くて外へ脱出困難になり、なによりも火災など緊急時に速やかに脱出することができないという欠点があった。
【０００７】
本発明は、上記問題点を解決しようとするものであり、その第１の目的は誤って扉が閉った場合に、暗室でも簡単な操作により外部へ容易に脱出できる戸構造の内部解錠装置を提供せんとする。
本発明の他の目的は、常態では室の外部からは解錠して内部に入れるが、不幸にも錠が施こされて、火災が発生するなど非常時において、室の内部から外部へ速やかに出ることが可能な戸構造の内部解錠装置を提供せんとするものである。
【０００８】
本発明は、上記目的に鑑みてなされたものであり、その要旨は扉の外側のハンドルを操作して掛金を筐体や躯体又は支柱など固定側の本体に掛けたり外したりする戸構造において、前記扉の内側に操作ピンで枢着した基体と、該基体に設けたガイド板に沿って摺動自在に配置した前記掛金を先部に有する操作板と、該操作板と前記基体もしくはガイド板に介在したスプリングと、前記基体には前記掛金を前記本体から掛けたり外したりするために前記外側ハンドルに連設して上下動するフック部材と、該フック部材とともに前記基体に設けた雲形穴内に設けて前記掛金を本体に掛ける位置から外す位置まで前記基体と操作板の回動距離を規制する作用ピンとからなり、
常時では前記外側ハンドルを扉の外側から操作することで前記フック部材の上下動により前記基板と操作板を前記操作ピンを中心に回動することで前記掛金を前記本体に掛けたり外したりするとともに、非常時では扉の内側から前記操作板を前記スプリングに抗して摺動させることにより前記掛金を前記本体から外して扉を押し出すようにしたことを特徴とする戸構造の内部解錠装置にある。
本発明では扉の内側表面に本発明の戸構造の内部解錠装置が設けられているために、外側で鍵が掛っているなど内側から外側に脱出できない場合、操作板をスプリングに抗して摺動させるだけで掛金を本体から外すことができるようにした。
【０００９】
本発明の上記発明と別の実施形態として、扉の外側ハンドルを操作して掛金を筐体や躯体又は支柱など固定側の本体に掛けたり外したりする戸構造において、前記扉の内部に操作ピンで枢着した基体と、該基体に設けたガイド板に沿って摺動自在に配置した前記掛金を先部に有する操作板と、該操作板と前記基体もしくはガイド板に介在したスプリングと、該スプリングに抗して前記操作板を横移動して前記掛金を前記本体より外すために、前記操作板に当接して横移動させる移動杆を前記扉の内側ハンドルに設けたことにより、
常時では前記ハンドルを扉の外側から操作することで前記フック部材の上下動により前記基板と操作板を前記操作ピンを中心に回動することで前記掛金を前記本体に掛けたり外したりするとともに、非常時では扉の内側から前記操作板を前記スプリングに抗して引っ張ることにより前記掛金を前記本体から外して扉を押し出すようにしたことを特徴とする戸構造の内部解錠装置がある。
本発明によれば、本発明の主要部である基体とガイド板に沿って摺動する掛金を有する操作板とを、扉の板厚内に納めてこれを内側ハンドルに取り付けたカム部により前記操作板を横移動することで掛金を本体から外すようにした。
【００１０】
【作用】
扉の外側から扉を開いて内側に入る戸構造の内部解錠装置において、扉の外側から錠が掛っていても操作板を直接引っ張ることで掛金を本体から外すことができる。また、操作板が扉内に設けられて直接引っ張り操作ができない場合でも、扉内側のハンドルに設けた操作杆により、掛金をスプリングに抗して横移動することで本体から外す。
【００１１】
【実施例１】
図１は、本発明の一実施例である戸構造の内部解錠装置を現わす一部透視の斜視図で、図２は非常時に扉の内側より解錠する操作を説明する斜視図であり、図３は解錠状態の斜視図である。
図１において、１は本発明の装置の基体であり、ビス１６，１７で扉１１に表面を面一に埋設されている平面ハンドル９の裏側には、ピンとしてのビス７により基体１が枢着されている。基体１は、その上下に位置する左右に平行に折り曲げたガイド板２，２’で全体をチャンネル状にしている。上下のガイド板２，２’にはそれぞれ２本のガイドピン１８，１８’が設けられ、各ピンはチャンネル状のガイド板２，２’付きの基体１中に左右に摺動する操作板３の上下に設けた摺動板１９，１９’に設けた上下２つの横長孔２０，２０’内を規制されて左右に摺動可能にしている。
【００１２】
また、操作板３には雲形穴６が開けられて、この穴には従来例としての図７や図８に見られるハンドル６０と一体に設けて上下動するフック部５と、ビスとしての作用ピン８が遊嵌状態で突出している。
また、基板１の内部と後述する操作板３と一体に設けた掛金１５とは反対側の摺動板１９には、引っ張りスプリング４の両端を固定している孔２２，２３付き突起２０と２１を設けている。
さらに、操作板の一側部（図面上右側）には扉１１と縦長溝１２及びこの縦長溝１２と対応する位置に支柱など固定側の本体１３に設けた縦長溝１４を貫通して扉を本体に固定している。
【００１３】
ついで、上記構成から成る本発明の戸構造の内部解錠装置について以下に説明する。
通常の態様では扉１１の外側にある平面ハンドルのハンドル６０を、叙述した従来技術において記載したように跳ね上げることで、ハンドル上部に設けたフック部５を雲形穴６内の上方から下方に下ろし、雲形穴に当ってからさらに押し下げることで操作板３を、操作ピン７を軸として雲形穴の上方辺に作用ピン８が当るまで押し下げる（図１と図３）。このように、常態では鍵がある場合とない場合にかかわらずハンドルを跳ね上げることで、扉１１を本体１３から開いて扉内に入る。もちろん、この場合に扉内から外側に出るには扉が開いたままの状態にあるので問題は生じない。
しかし、内に人が入っていることを知らずにあるいは自然状態で扉を閉めてハンドルを下ろして錠を掛けられた場合、今までは図８の状態でそのまま外に出られなかったが、本発明では図２に示すように、扉の内側から操作板３の引き金としての突起部１０を引っ張りスプリング４に抗して矢印の方向に引くことで掛金１５は本体１３にある縦長溝１４から抜き出ることにより、そのまま扉１１を外側に押し出すことで容易に扉を本体から開いてから外方に脱出できる。
【００１４】
【実施例２】
図５は本発明の別の実施態様の戸構造の内部解除装置であり、常態における扉１１’を本体１３’に掛金１５を掛けた状態の一部破断斜視図であり、図６は扉の内部から扉を開いて脱出可能にする状態を示す一部破断斜視図である。
図５と図６において、前記実施例と同じ構造を以下に説明する。
平面ハンドル９は扉１１’に表面を面一に埋設し、その表面にチャンネル状の基体１が枢着されている（枢着位置は図示されていない）。また、基体１のガイド板２，２’の内側には摺動板１９，１９’を設けた操作板３が左右に摺動可能に配置している。また、基体１と操作板３との間には、実施例１と同様に、引っ張りスプリング４が配置されて、操作板３をスプリング４を伸ばして、図６に示すように矢印方向に引っ張ることで、操作板の先端に位置する掛金は扉１１’と本体１３のそれぞれの縦長溝１２，１４を貫通して、扉１１を全体に固定している。
【００１５】
本実施例が実施例１と違う構造を以下に列挙する。まず、平面ハンドル９の内側にある基体１と操作板３などは実施例１では扉１１の内側に露出して配置しているが、本実施例はこれらを扉１１’内に埋設している。したがって、操作板３に設けた突起部１０は扉１１’内にあって、これを扉１１’の内側から操作できない。
【００１６】
そこで、本発明の目的である扉１１’が掛金１５により本体１３に止められた状態で閉っている場合において、扉１１’の内側から掛金１５を外す構造としては、二重扉１１’の内側外面にビス２４により止めた平板２５にレバーハンドル２６を貫通して設け、その先端の扉１１’内に縦断面鍵状の作動杆としてのカム２７を付設した点にある。
このレバーハンドル２６としてのハンドルや作動杆としてのカム２７は、通常の状態、すなわち扉１１’の外側のハンドル９を操作して扉を開閉して出入する場合は図７乃至図１０と変わらないが、人が扉内に入っている場合に掛金１５が掛っている非常時には図６に示す操作が必要である。この操作は扉１１’の内側に突出しているレバーハンドル２６を時計方向に回転させることで、作動杆２７を廻して、これを操作板３の突起部１０に当接し、作動杆としてのカム２７の先端の円弧部２８に沿って操作板３をスプリング４の引張力に抗して左方に横移動することで掛金１５を本体１３の縦長孔１４から外して、扉１１’を図面上向こう側に押しやることで開け、外側に脱出できる。
なお、図４は実施例２の要部を示す戸構造の内部解除装置の分解図である。
【００１７】
【発明の効果】
以上述べたように、本発明ではハンドルの内側に基体と操作板とその両者間にスプリングを設け、扉の内側からこのスプリングの引張力に抗して前記操作板を横方向に移動することで、緊急時に掛金を本体から外すことにより、扉の内側に閉じ込められた人を脱出可能にした。
【図面の簡単な説明】
【図１】扉内における本発明装置の一部透視状態の斜視図。
【図２】図１を緊急時において扉内より脱出する操作説明の一部透視状態の斜視図。
【図３】図１における通常時の扉開放状態を現わす斜視図。
【図４】上記図１乃至図３とは別の実施例である本発明装置の分解図。
【図５】図４を用いた一部透視状態の斜視図。
【図６】図５を緊急時において扉内より脱出する操作説明の一部透視状態の斜視図。
【図７】従来の平面ハンドルの縦断面図。
【図８】図７を用いた扉の掛金が本体に掛けられた状態の斜視図。
【図９】図７から平面ハンドルのハンドルを跳ね上げた状態を示す縦断面図。
【図１０】図９における扉の掛金が本体から外れた状態の斜視図。
【符号の説明】
１基体
２，２’ ガイド板
３操作板
４スプリング
５フック部
６雲形穴
７操作ピン
８作用ピン
１１，１１’ 扉
１３本体
１４本体の縦長孔
１５掛金[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a door structure that opens and closes a door by turning an outer handle such as a plane handle or a lever handle from the outside of the door and removing a latch from a main body such as a frame, a housing, or a support. The present invention relates to an internal unlocking device having a door structure that can escape.
[0002]
[Prior art]
A conventional lever handle is, as a rule, a flat handle that is substantially flush with the door surface, as shown in JP-A-2003-3700 and JP-A-9-32382, and as shown in FIGS. The handle was operated from outside (with or without a key) and entered the inside of the door. Apart from this flat handle, there has also been one that enters the door by operating a handle protruding from the door surface, such as a lever handle protruding from the outside of the door as disclosed in JP-A-6-346641.
[0003]
A conventional example of the flat handle will be described with reference to FIGS. 7 is a longitudinal sectional view of the flat handle 50 as a lock, and FIG. 8 is a view in which the flat handle 50 of FIG. 7 is attached to the door 51, and a latch 59 is hung on a fixed body 52 such as a column. FIG. 9 shows a state where the hook 53 is lowered from the state shown in FIG. 7, and FIG. 10 shows a state where the flat handle 50 shown in FIG. 9 is attached to the door and the latch 59 is removed from the main body.
7, the casing 54 of the flat handle 50 has screw holes 55 and 56, and screws 57 and 58 shown in FIG. Accordingly, a state in which the latch 59 is hooked on the vertical groove 65 of the door 51 and the vertical groove 66 of the main body 50 to lock the door 51 to the main body 50 will be described. The handle 60 is held in the housing 54 against the repulsion of the spring 61 by hooking the plate to the housing 54 with a key (not shown). In this state, by rotating the key and rotating the plate, even if the plate is removed from the housing 54, the handle 60 allows the spring 62 to pivotally engage the housing 54 in the front-rear direction (not shown). By being urged clockwise, the handle 60 does not move in the notch 63 while maintaining a state against the spring 61 attached to the shaft 64.
[0004]
Next, in FIGS. 7 and 8, as shown in FIGS. 9 and 10, the fixed handle 60 is flipped up, and the hook 59 is rotated clockwise about the shaft 61 by using the hook 53. The door 51 is opened from the main body 52 by removing the door 51 from the vertically long groove 66.
More specifically, the handle 60 after opening the lock and removing the lock from the housing 54 is in the state shown in FIGS. 7 and 8. In this state, the push button 67 is pressed by the repulsive force of the spring 62. When the push button 67 is pressed in the direction of the arrow shown in FIG. 9, the push button 67 rotates around the axis 68 of the spring 62. Thereby, the handle 60 jumps up about the shaft 64. By the upward movement of the handle 60, the hook 53 rotates clockwise about the shaft 64 and moves down. When the hook 53 is lowered, the latch 59 pivotally attached to the casing 54 of the flat handle rotates in the clockwise direction around the screw 70 until the screw 71 reaches a lower position in the cloud-shaped hole 69. As a result, the latch 59 is disengaged from the longitudinal groove 66 of the main body 52, and the door 51 can be opened in a direction where the handle 60 protrudes.
[0005]
[Patent Document 1]
JP 2003-3700 A [Patent Document 2]
JP-A-9-32382 [Patent Document 3]
JP-A-6-346641
[Problems to be solved by the invention]
However, although the above-mentioned conventional ones can be easily unlocked from the outside such as a distribution board or a safe and then enter the inside, even if there is a person inside, they are locked by mistake, If the door is closed, it is necessary to disassemble the lock from the inside using tools such as disassembling the lock, but it is difficult to escape outside without the tools or the dark interior. There is a drawback that it is not possible to escape quickly in an emergency such as a fire.
[0007]
SUMMARY OF THE INVENTION The present invention has been made to solve the above problem, and a first object of the present invention is to unlock the inside of a door structure which can easily escape to the outside by a simple operation even in a dark room when the door is accidentally closed. No equipment will be provided.
Another object of the present invention is that the lock is normally unlocked from the outside of the room and inserted into the inside, but unfortunately the lock is applied, and in the event of an emergency such as a fire, the room can be quickly moved out of the room to the outside. It is intended to provide an internal unlocking device having a door structure capable of exiting from a door.
[0008]
The present invention has been made in view of the above-mentioned object, and the gist of the present invention is to provide a door structure in which a handle is operated on a handle on the outside of a door to hang or remove a latch on a fixed-side main body such as a housing, a frame, or a support, A base pivotally attached to the inside of the door with an operation pin, an operation plate having a latch at a front end thereof slidably disposed along a guide plate provided on the base, and the operation plate and the base or the guide plate A spring member interposed between the outer handle and a hook member that moves up and down in order to hang or release the latch from the main body on the base, and a hook-shaped hole provided in the base together with the hook member. An operating pin for restricting the rotation distance of the base and the operation plate from the position where the latch is provided to the position where the latch is hung on the main body, and
Normally, by operating the outer handle from the outside of the door, the board and the operation plate are rotated around the operation pins by the vertical movement of the hook member, so that the latch is hooked on and removed from the main body. In an emergency, the latch is removed from the main body by sliding the operation plate from the inside of the door against the spring from the inside of the door to push out the door. is there.
In the present invention, since the internal unlocking device of the door structure of the present invention is provided on the inner surface of the door, if the lock cannot be escaped from the inside to the outside, such as when locked on the outside, the operation plate is opposed to the spring. The latch can now be removed from the body simply by sliding it.
[0009]
As another embodiment different from the above invention of the present invention, in a door structure in which an outer handle of a door is operated to hang or remove a latch on a fixed-side main body such as a housing, a frame, or a support, an operation pin is provided inside the door. A base plate pivotally mounted at the base, an operation plate having a latch at a front end thereof slidably disposed along a guide plate provided on the base, a spring interposed between the operation plate and the base or the guide plate, In order to laterally move the operation plate against a spring and remove the latch from the main body, a moving rod that abuts the operation plate and moves laterally is provided on the inner handle of the door,
Normally, by operating the handle from the outside of the door, the base member and the operation plate are rotated about the operation pins by the vertical movement of the hook member, and the latch is hooked or removed from the main body. In an emergency, there is an internal unlocking device of a door structure wherein the latch is removed from the main body by pushing the operation plate against the spring from the inside of the door to push out the door.
According to the present invention, the main body of the present invention and the operation plate having the latch which slides along the guide plate are accommodated in the thickness of the door by the cam portion which is attached to the inner handle. The latch is removed from the main body by moving the operation plate sideways.
[0010]
[Action]
In an internal unlocking device having a door structure in which the door is opened from the outside of the door and enters the inside, the latch can be removed from the main body by directly pulling the operation plate even if the lock is locked from the outside of the door. Further, even when the operation plate is provided in the door and cannot be directly pulled, the latch is removed from the main body by moving the latch laterally against the spring by the operation rod provided on the handle inside the door.
[0011]
Embodiment 1
FIG. 1 is a partially transparent perspective view showing an internal unlocking device having a door structure according to one embodiment of the present invention, and FIG. 2 is a perspective view illustrating an operation of unlocking from the inside of a door in an emergency. FIG. 3 is a perspective view of the unlocked state.
In FIG. 1, reference numeral 1 denotes a base of the apparatus of the present invention. On the back side of a flat handle 9 buried in the door 11 with screws 16 and 17 flush with the surface, the base 1 is pivoted by a screw 7 as a pin. Is being worn. The base 1 is formed into a channel as a whole by guide plates 2 and 2 ′ which are bent in parallel to the left and right positioned above and below the base 1. The upper and lower guide plates 2 and 2 'are provided with two guide pins 18 and 18', respectively. Each of the pins is an operation plate 3 which slides left and right in the base 1 with the channel-shaped guide plates 2 and 2 '. The upper and lower sliding plates 19 and 19 'are provided in upper and lower two oblong holes 20 and 20' so as to be slidable left and right.
[0012]
A cloud-shaped hole 6 is formed in the operation plate 3, and a hook portion 5 which is provided integrally with a handle 60 as shown in FIGS. The pin 8 protrudes in a loosely fitted state.
A projection 20 and 21 with holes 22 and 23 for fixing both ends of the extension spring 4 are provided on the slide plate 19 on the opposite side to the latch 15 provided integrally with the operation plate 3 to be described later. Is provided.
Further, a door 11 and a longitudinal groove 12 and a longitudinal groove 14 provided on a fixed-side main body 13 such as a support column at a position corresponding to the longitudinal groove 12 penetrate a door (a right side in the drawing) on one side portion (right side in the drawing) of the operation plate. It is fixed to the body.
[0013]
Next, the internal unlocking device for a door structure of the present invention having the above configuration will be described below.
In a normal mode, the handle 60 of the flat handle on the outside of the door 11 is flipped up as described in the related art described above, thereby lowering the hook portion 5 provided on the upper portion of the handle from above in the cloud-shaped hole 6 to below. Then, the operating plate 3 is further pushed down after hitting the cloud-shaped hole until the operating pin 8 hits the upper side of the cloud-shaped hole around the operating pin 7 (FIGS. 1 and 3). In this manner, the door 11 is opened from the main body 13 and enters the door by flipping up the handle regardless of whether the key is present or not. Of course, in this case, there is no problem in exiting from the inside of the door because the door is kept open.
However, if the door is closed and the handle is lowered and locked without knowing that a person is inside or in a natural state, the person could not go out as it was in the state of FIG. In the invention, as shown in FIG. 2, the latch 15 is pulled out from the longitudinal groove 14 in the main body 13 by pulling the projection 10 as the trigger of the operation plate 3 from the inside of the door in the direction of the arrow against the tension spring 4. By coming out, the door 11 can be easily opened from the main body by pushing the door 11 outward, and then the door 11 can escape outward.
[0014]
Embodiment 2
FIG. 5 is a partially exploded perspective view showing a door structure 11 according to another embodiment of the present invention, in which a door 11 ′ is hooked on a main body 13 ′ with a latch 15 in a normal state, and FIG. It is a partially broken perspective view showing the state where it is possible to escape by opening the door from the inside.
5 and 6, the same structure as the above embodiment will be described below.
The flat handle 9 is buried flush with the surface of the door 11 ', and the channel-like base 1 is pivotally mounted on the surface thereof (the pivot position is not shown). On the inner side of the guide plates 2 and 2 'of the base 1, an operation plate 3 provided with sliding plates 19 and 19' is disposed so as to be slidable left and right. Further, a tension spring 4 is disposed between the base 1 and the operation plate 3 as in the first embodiment, and the operation plate 3 is extended and the tension is pulled in the arrow direction as shown in FIG. The latch located at the tip of the operation plate passes through the vertically elongated grooves 12 and 14 of the door 11 'and the main body 13, and fixes the door 11 as a whole.
[0015]
The structure of this embodiment different from that of the first embodiment will be described below. First, the base body 1 and the operation plate 3 inside the flat handle 9 are disposed so as to be exposed inside the door 11 in the first embodiment, but in the present embodiment, they are embedded in the door 11 '. . Therefore, the projection 10 provided on the operation plate 3 is inside the door 11 ', and cannot be operated from inside the door 11'.
[0016]
Therefore, when the door 11 ′, which is the object of the present invention, is closed in a state where the door 11 ′ is stopped by the main body 13 by the latch 15, the latch 15 is removed from the inside of the door 11 ′. A lever handle 26 is provided to penetrate a flat plate 25 fixed by screws 24 on the inner outer surface, and a cam 27 as a key-shaped operating rod having a vertical cross section is provided in the door 11 'at the tip thereof.
The handle as the lever handle 26 and the cam 27 as the operating rod are the same as those shown in FIGS. 7 to 10 in a normal state, that is, when the door 9 is opened and closed by operating the handle 9 outside the door 11 ′. However, the operation shown in FIG. 6 is necessary in an emergency when the latch 15 is engaged when a person is inside the door. This operation is performed by rotating a lever handle 26 projecting inward of the door 11 ′ clockwise to rotate the operating rod 27 and abut the projection 10 of the operating plate 3, and the cam 27 as the operating rod is turned. The latch 15 is removed from the elongated hole 14 of the main body 13 by laterally moving the operation plate 3 to the left against the pulling force of the spring 4 along the arc portion 28 at the tip of the door 11, and the door 11 ′ faces upward in the drawing. Push it to the side to open it and escape to the outside.
FIG. 4 is an exploded view of an internal release device of a door structure showing a main part of the second embodiment.
[0017]
【The invention's effect】
As described above, in the present invention, a spring is provided between the base and the operation plate and between the base and the operation plate inside the handle, and the operation plate is laterally moved from inside the door against the pulling force of the spring. By removing the latch from the main body in an emergency, a person trapped inside the door can escape.
[Brief description of the drawings]
FIG. 1 is a perspective view of a device of the present invention inside a door in a partially transparent state.
FIG. 2 is a perspective view of a partially see-through state for explaining an operation of escaping from a door in an emergency in FIG. 1;
FIG. 3 is a perspective view showing a normal door open state in FIG. 1;
FIG. 4 is an exploded view of the apparatus of the present invention, which is another embodiment different from FIGS. 1 to 3;
FIG. 5 is a perspective view of FIG. 4 in a partially transparent state.
FIG. 6 is a perspective view of FIG. 5 in a partially transparent state for explanation of an operation to escape from inside the door in an emergency.
FIG. 7 is a longitudinal sectional view of a conventional flat handle.
FIG. 8 is a perspective view of the state where the latch of the door is hooked on the main body using FIG. 7;
FIG. 9 is a longitudinal sectional view showing a state where the handle of the flat handle is flipped up from FIG. 7;
FIG. 10 is a perspective view showing a state in which the latch of the door in FIG. 9 is detached from the main body.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Base 2, 2 'Guide plate 3 Operation plate 4 Spring 5 Hook part 6 Cloud-shaped hole 7 Operation pin 8 Working pin 11, 11' Door 13 Main body 14 Vertical hole 15 of main body Latch

Claims

In a door structure for operating a handle on the outside of a door to hang or remove a latch from a fixed body such as a housing, a frame, or a support, a base pivotally attached to the inside of the door with an operation pin, and a base provided on the base An operation plate having a latch at its front end slidably disposed along the guide plate, a spring interposed between the operation plate and the base or the guide plate, and the latch being hung on the base from the main body. A hook member connected to the outer handle and moved up and down to remove the base member, and the base member and the operation plate provided in a cloud-shaped hole provided in the base member together with the hook member so that the latch is removed from a position where the latch is hung on the main body. And an action pin that regulates the rotation distance of
Normally, by operating the outer handle from outside the door, the hook member is vertically moved by rotating the board and the operation plate around the operation pin, so that the latch is hooked on or removed from the main body. In an emergency, the operation plate is slid from the inside of the door against the spring so that the latch is removed from the main body and the door is pushed out, whereby the door is unlocked.

In a door structure in which a latch is hooked on or removed from a fixed-side main body such as a housing, a skeleton, or a column by operating an outer handle of a door, a base pivotally attached to the inside of the door with an operation pin, and the base is provided on the base. An operation plate having the latch at the front end slidably disposed along the guide plate, a spring interposed between the operation plate and the base or the guide plate, and laterally moving the operation plate against the spring. In order to remove the latch from the main body, by providing a moving rod that abuts the operation plate and moves laterally on the inner handle of the door,
Normally, by operating the handle from the outside of the door, the board and the operation plate are rotated around the operation pins by the up and down movement of the hook member, and the latch is hooked or removed from the main body. An internal unlocking device for a door structure, wherein in an emergency, the latch is removed from the main body by pushing the operation plate against the spring from the inside of the door and the door is pushed out.

The internal unlocking device for a door structure according to claim 1 or 2, wherein a protrusion is provided on the operation plate on the side opposite to the latch.

The internal unlocking device for a door structure according to any one of claims 1 to 3, wherein the door and the main body are provided with a vertically long locking groove capable of rotating and reciprocating the latch.