JP2007278004A - Locking device for steel door - Google Patents

Locking device for steel door Download PDF

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Publication number
JP2007278004A
JP2007278004A JP2006108144A JP2006108144A JP2007278004A JP 2007278004 A JP2007278004 A JP 2007278004A JP 2006108144 A JP2006108144 A JP 2006108144A JP 2006108144 A JP2006108144 A JP 2006108144A JP 2007278004 A JP2007278004 A JP 2007278004A
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Prior art keywords
locking piece
steel door
door
locking
handle
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JP2006108144A
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Japanese (ja)
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Ikuo Sudo
育夫 須藤
Shuji Takahashi
修二 高橋
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SUEHIRO KANAGU KK
Geo Prince Takeshita Co Ltd
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SUEHIRO KANAGU KK
Geo Prince Takeshita Co Ltd
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Priority to JP2006108144A priority Critical patent/JP2007278004A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a locking device for a steel door capable of improving its stability in the closed position and correcting any distortion in a vertical direction of the door, even if it is large and particularly long in a vertical direction and is made of a thin steel sheet, by supporting the door at three or more points in its vertical direction when the door is in a closed position. <P>SOLUTION: This locking device 3 is installed to an end portion at an opposite side of a hinged end side by using hinges formed to a front face of a spatial portion of a steel door 2 installed to its door opening in a freely swingable manner. At a middle position in a height direction of the steel door 2, it has a middle link piece 6 turning around a rotation axis by rotating a handle with one side portion of the handle connected to an axis of rotation of the handle installed to an outer face of the steel door 2. The door also has an upper link piece 10 connected to the middle link piece 6 through an upward coupling rod 8, and a lower link piece 14 connected to the middle link piece 6 through a downward coupling rod 12. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、ガスチャンバーやトランクルームなどの開閉部に設けられるスチール扉の施錠装置に関するものである。   The present invention relates to a locking device for a steel door provided in an opening / closing part such as a gas chamber or a trunk room.

従来、ガスチャンバーやトランクルームなどの開閉部に設けられるスチール扉の施錠装置としては例えば特許文献１に開示されているような扉ロック機構が知られている。この特許文献１には上部ロック機構と下部ロック機構とを扉の略中央に取り付けられた取手から別々に動作させる上部連動機構と下部連動機構とを設けてなる扉ロック機構が開示されている。
特開平９−２７３３４５号公報 Conventionally, as a locking device for a steel door provided in an opening / closing part such as a gas chamber or a trunk room, a door lock mechanism as disclosed in Patent Document 1 is known. This Patent Document 1 discloses a door lock mechanism provided with an upper interlocking mechanism and a lower interlocking mechanism that separately operate an upper lock mechanism and a lower lock mechanism from a handle attached to the approximate center of the door.
Japanese Patent Laid-Open No. 9-273345

上記特許文献１に開示されている扉ロック機構の構成では扉の上端と下端とをそれぞれロック機構により係止させるものであるが、扉が大きい、特に縦方向に長く、扉がスチール製の厚さの薄い板体で作られている場合、扉を上下で２点支持するだけでは扉の閉塞状態において扉の安定性が悪く、扉の上下方向の歪みを修正することができないという問題があった。   In the configuration of the door lock mechanism disclosed in Patent Document 1, the upper end and the lower end of the door are respectively locked by the lock mechanism, but the door is large, particularly long in the vertical direction, and the door is made of steel. If it is made of a thin plate, there is a problem that if the door is only supported at two points at the top and bottom, the door is not stable when the door is closed, and the vertical distortion of the door cannot be corrected. It was.

本発明の目的は、このような課題を解決するものであり、扉が大きい、特に縦方向に長く、スチール製の厚さの薄い板体で作られているものであっても、扉の閉塞状態において扉を上下方向の３点以上で支持し、扉の閉塞状態における扉の安定性を向上させ、また扉の上下方向の歪みを修正することができるようにしたスチール扉の施錠装置を提供することにある。   The object of the present invention is to solve such a problem, even if the door is large, especially in the longitudinal direction and made of a thin steel plate, the door is closed. A steel door locking device that supports the door at three or more points in the vertical direction in the state, improves the stability of the door in the closed state of the door, and can correct the vertical distortion of the door There is to do.

本発明の請求項１に記載のスチール扉の施錠装置は、空間部の前面に形成される開口部に蝶番により開閉自在に取り付けられたスチール扉の前記蝶番による回転枢支側とは反対側の端部に設けられる施錠装置であって、スチール扉の高さ方向の中間部においてスチール扉の外面に取り付けられたハンドルの回転軸に一側部が結合されハンドルの回転によって前記回転軸の回りで回動する中間の係止片と、この中間の係止片の前記回転軸との結合部よりも一側端部側において係止片の下端に枢結ピンにより下端が枢結された上向きの連結ロッドの上端に枢結ピンにより下端が枢結された上側の係止片と、前記中間の係止片の前記回転軸との結合部よりも他側部側における中間の係止片の上端に枢結ピンにより上端が枢結された下向きの連結ロッドの下端に枢結ピンにより上端が枢結された下側の係止片とを備えてなり、前記ハンドル操作により前記各係止片の先端部がスチール扉の前記蝶番による回転枢支側とは反対側の端面に形成された長孔に対し出退するように構成され、各係止片の先端部を前記空間部の側部に形成された係止孔に係止させスチール扉の閉塞状態を保持するように構成してなることを特徴とする。   According to a first aspect of the present invention, there is provided a locking device for a steel door, which is provided on an opening formed on a front surface of a space portion so as to be freely opened and closed by a hinge. A locking device provided at an end, wherein one side portion is coupled to a rotating shaft of a handle attached to an outer surface of the steel door at an intermediate portion in the height direction of the steel door, and the rotating shaft rotates around the rotating shaft. An intermediate locking piece that rotates, and an upper end whose lower end is pivotally connected by a pivot pin to the lower end of the locking piece on one side end side of the coupling portion between the intermediate locking piece and the rotating shaft. The upper locking piece whose lower end is pivotally connected to the upper end of the connecting rod by a pivot pin, and the upper end of the intermediate locking piece on the other side of the connecting portion of the intermediate locking piece with the rotary shaft A downward connecting lock whose upper end is pivoted by a pivot pin. And a lower locking piece whose upper end is pivotally connected by a pivoting pin, and the distal end portion of each locking piece by the handle operation is the rotation pivot side by the hinge of the steel door. The steel door is closed so that the leading end of each locking piece is locked to the locking hole formed on the side of the space portion, and is retracted with respect to the long hole formed on the opposite end surface. It is characterized by comprising so that it may hold | maintain.

請求項２に記載のスチール扉の施錠装置は、上側の係止片の上端に枢結ピンにより下端が枢結された上向きの連結ロッドの上端に枢結ピンにより上端が枢結された係止片を備えてなり、ハンドル操作により各係止片の先端部がスチール扉の前記蝶番による回転枢支側とは反対側の端面に形成された長孔に対し出退するように構成され、各係止片の先端部を空間部の側部に形成された係止孔に係止させスチール扉の閉塞状態を保持するように構成してなることを特徴とする。   The locking device for a steel door according to claim 2, wherein the upper end of the upper locking piece is pivotally connected to the upper end of the upward connecting rod whose lower end is pivotally connected to the upper end of the upper locking piece by the pivot pin. Each of the locking pieces is configured so that the front end of each locking piece is retracted with respect to the long hole formed on the end surface of the steel door opposite to the rotation pivot side by the handle operation. The front end of the locking piece is locked in a locking hole formed in the side of the space, and the closed state of the steel door is maintained.

請求項３に記載のスチール扉の施錠装置は、下側の係止片の下端に枢結ピンにより上端が枢結された下向きの連結ロッドの下端に枢結ピンにより下端が枢結された係止片を備えてなり、ハンドル操作により各係止片の先端部がスチール扉の前記蝶番による回転枢支側とは反対側の端面に形成された長孔に対し出退するように構成され、各係止片の先端部を空間部の側部に形成された係止孔に係止させスチール扉の閉塞状態を保持するように構成してなることを特徴とする。   According to a third aspect of the present invention, there is provided the locking device for the steel door, wherein the lower end of the lower locking piece is pivotally connected to the lower end of the downward connecting rod whose upper end is pivotally connected to the lower end by the pivot pin. It comprises a stop piece, and is configured so that the tip of each locking piece is withdrawn from and retracted from a long hole formed on the end surface of the steel door opposite to the rotation pivot side by the handle, The front end portion of each locking piece is locked in a locking hole formed in the side portion of the space portion, and the closed state of the steel door is maintained.

以上のように、本発明のスチール扉の施錠装置は、互いに連動する少なくとも上、中、下の３つの係止片によりスチール扉を閉塞状態に保持するように構成されているので、閉塞状態におけるスチール扉の安定性を向上させ、また厚さの薄く歪みが生じやすいスチール扉において上下方向の歪みを修正することもできる。   As described above, the locking device for a steel door of the present invention is configured to hold the steel door in a closed state by at least three upper, middle, and lower locking pieces interlocking with each other. The stability of the steel door can be improved, and the vertical distortion can be corrected in the steel door which is thin and easily distorted.

以下、本発明の実施の形態を、図１〜図９を用いて具体的に説明する。
図において、１はボックス本体で、このボックス本体１の前面開口部には蝶番（図示せず）により開閉自在なスチール扉２が取り付けられている。このスチール扉２の前記蝶番による回転枢支側とは反対側の端部に高さ方向の上下両端および中間部でボックス本体１に対して係止する施錠装置３が設けられている。この施錠装置３はスチール扉２の高さ方向の中間部においてスチール扉２の外面に取り付けられたハンドル４の回転軸５に一側部が結合されハンドル４の回転によって前記回転軸５の回りで回動する中間の係止片６と、この係止片６の前記回転軸５との結合部よりも一側端部側において係止片６の下端に枢結ピン７により下端が枢結された上向きの連結ロッド８の上端に枢結ピン９により下端が枢結された上側の係止片１０と、前記係止片６の前記回転軸５との結合部よりも他側部側、詳しくは係止片６と回転軸５との結合部を中心に、係止片６と連結ロッド８との枢結部と対称位置における係止片６の上端に枢結ピン１１により上端が枢結された下向きの連結ロッド１２の下端に枢結ピン１３により上端が枢結された下側の係止片１４とを備えている。さらに詳しくは、前記中間の係止片６はスチール扉２の外面に取り付けられたハンドル４に連結ピン１５により連結された回転軸５の先端が係止片６に形成された星形の孔部１６に嵌入して回転軸５の先端よりビス１７を締め付けることにより回転軸５と結合される。ハンドル４はハンドルケース１８に対して突出していない状態と突出した状態に変位し、ハンドルケース１８から突出した状態のハンドル４を手で握って９０度正逆回転させることにより係止片６も９０度正逆回転して、スチール扉２の前記蝶番による回転枢支側とは反対側の端面に形成された長孔１９に対し係止片６の先端部６ａが出退するようになっている。また、前記上側の係止片１０および下側の係止片１４は共に前記中間の係止片６と大きさや形状が同じに作られており、中間の係止片６と上側の係止片１０は同位置の下端同士を連結ロッド８により連結され、中間の係止片６と下側の係止片１４は同位置の上端同士を連結ロッド１２により連結されている。そして、前記上側の係止片１０および下側の係止片１４はそれぞれ平面形状がコの字形のブラケット２０および２１に前記中間の係止片６の孔部１６と同位置でピン２２および２３により枢結され、前記ブラケット２０および２１をスチール扉２の前記蝶番による回転枢支側とは反対側の端部に上下方向全長に亘って折り曲げて形成された空間部２４内に収めてビス止めした状態において前記３つの係止片６，１０，１４が上方または下方から見て横方向のずれがなく縦方向に並ぶように構成されている。なお、前記ブラケット２０および２１には前記スチール扉２の前記蝶番による回転枢支側とは反対側の端面に形成された長孔１９と上下方向に並ぶように形成された長孔２５および２６と合致するように長孔２７および２８が形成されており、係止片１０および１４の先端部１０ａおよび１４ａがそれぞれ長孔２７，２５および長孔２８，２６に対し出退するようになっている。 Hereinafter, embodiments of the present invention will be specifically described with reference to FIGS.
In the figure, reference numeral 1 denotes a box body, and a steel door 2 that can be opened and closed by a hinge (not shown) is attached to the front opening of the box body 1. A locking device 3 is provided at an end portion of the steel door 2 opposite to the rotation pivot support side by the hinge, and is locked to the box body 1 at both upper and lower ends and an intermediate portion in the height direction. This locking device 3 is connected at one side to a rotating shaft 5 of a handle 4 attached to the outer surface of the steel door 2 at an intermediate portion in the height direction of the steel door 2, and rotates around the rotating shaft 5 by the rotation of the handle 4. The lower end of the locking piece 6 is pivotally connected to the lower end of the locking piece 6 on the one side end side of the connecting piece between the rotating locking piece 6 and the rotating shaft 5 of the locking piece 6 by a pivot pin 7. The upper locking piece 10 whose lower end is pivotally connected to the upper end of the upward connecting rod 8 by a pivoting pin 9 and the other side of the locking piece 6 with respect to the rotary shaft 5. The upper end of the locking piece 6 is pivotally connected to the upper end of the locking piece 6 at a position symmetrical to the pivotal portion of the locking piece 6 and the connecting rod 8 around the coupling portion of the locking piece 6 and the rotating shaft 5. A lower locking piece 14 whose upper end is pivotally connected to the lower end of the downwardly-directed connecting rod 12 by a pivot pin 13. Eteiru. More specifically, the intermediate locking piece 6 is a star-shaped hole formed at the locking piece 6 at the tip of the rotary shaft 5 connected to the handle 4 attached to the outer surface of the steel door 2 by a connecting pin 15. The rotary shaft 5 is coupled with the rotary shaft 5 by tightening the screw 17 from the tip of the rotary shaft 5. The handle 4 is displaced between a state in which it does not protrude relative to the handle case 18 and a state in which it protrudes, and the handle 4 in a state of protruding from the handle case 18 is grasped with a hand and rotated 90 degrees forward and backward. The front end portion 6a of the locking piece 6 is moved back and forth with respect to the long hole 19 formed on the end surface of the steel door 2 opposite to the rotation support side by the hinge. . The upper locking piece 10 and the lower locking piece 14 are both made in the same size and shape as the intermediate locking piece 6. The intermediate locking piece 6 and the upper locking piece The lower end 10 of the same position is connected by the connecting rod 8, and the upper locking piece 6 and the lower locking piece 14 are connected by the connecting rod 12 at the same position. Then, the upper locking piece 10 and the lower locking piece 14 are respectively connected to the brackets 20 and 21 having a U-shaped planar shape on the pins 22 and 23 at the same position as the hole 16 of the intermediate locking piece 6. The brackets 20 and 21 are housed in a space 24 formed by bending the steel door 2 over the entire length in the vertical direction at the end of the steel door 2 opposite to the rotation support side by the hinge. In this state, the three locking pieces 6, 10, and 14 are configured so as to be aligned in the vertical direction with no lateral shift when viewed from above or below. The brackets 20 and 21 have long holes 19 formed on the end surface of the steel door 2 opposite to the rotation pivot side by the hinges and long holes 25 and 26 formed so as to be aligned in the vertical direction. Long holes 27 and 28 are formed so as to coincide with each other, and the distal end portions 10a and 14a of the locking pieces 10 and 14 are extended and retracted from the long holes 27 and 25 and the long holes 28 and 26, respectively. .

上記構成において、３つの係止片６，１０，１４は連結ロッド８，１２により連動することになり、中間の係止片６をハンドル４操作により９０度正逆回転させることにより３つの係止片６，１０，１４は連動して同方向に回転することになる。スチール扉２を取り付けるボックス本体１には閉じられたスチール扉２の前記係止片６，１０，１４が係止する３つの係止孔２９が前記蝶番による枢支側とは反対側の側部に形成され、前記閉じられたスチール扉２の係止片６，１０，１４をハンドル４操作により回転させることにより係止孔２９から外れてスチール扉２を開くことができる。スチール扉２を開かれているときハンドル４はハンドルケース１８から突出して横に向いており、この状態からスチール扉２を閉じてハンドル４を下に回すことにより係止片６，１０，１４を係止孔２９に係止させることができる。スチール扉２が閉じられているときはハンドル４を押し込んでハンドルケース１８から突出していない状態にしておく。そして、この状態において図面では詳細に示されていないが、ハンドル４の下端のキー孔にキーを差し込んでハンドルをロックさせ、スチール扉２の閉塞状態を保持するようになっている。   In the above configuration, the three locking pieces 6, 10, 14 are interlocked by the connecting rods 8, 12, and the intermediate locking piece 6 is rotated 90 degrees forward and backward by operating the handle 4 to thereby lock the three locking pieces 6, 10, 14. The pieces 6, 10, and 14 are rotated in the same direction in conjunction with each other. The box body 1 to which the steel door 2 is attached has three locking holes 29 for locking the locking pieces 6, 10, 14 of the closed steel door 2 on the side opposite to the pivot side by the hinge. The steel door 2 can be opened by being removed from the locking hole 29 by rotating the locking pieces 6, 10, 14 of the closed steel door 2 by operating the handle 4. When the steel door 2 is opened, the handle 4 protrudes from the handle case 18 and faces sideways. From this state, the steel door 2 is closed and the handle 4 is turned downward to disengage the locking pieces 6, 10, 14. The locking hole 29 can be locked. When the steel door 2 is closed, the handle 4 is pushed in so that it does not protrude from the handle case 18. In this state, although not shown in detail in the drawing, a key is inserted into the key hole at the lower end of the handle 4 to lock the handle, and the closed state of the steel door 2 is maintained.

ところで、以上述べた実施の形態では上、中、下の３つの係止片６，１０，１４を中間の係止片６をハンドル４操作により回転させることにより連動させるようになっているが、スチール扉２の高さに応じて上側の係止片１０および下側の係止片１４の少なくとも何れか一方に前記同様連結ロッドを介して係止片を繋ぎ設けることも可能で、これによりスチール扉２を４点以上で係止させることができるようになる。   By the way, in the embodiment described above, the upper, middle, and lower three locking pieces 6, 10, and 14 are interlocked by rotating the intermediate locking piece 6 by operating the handle 4, Depending on the height of the steel door 2, it is also possible to connect a locking piece to at least one of the upper locking piece 10 and the lower locking piece 14 via a connecting rod as described above. The door 2 can be locked at four or more points.

さらに、本実施の形態ではボックス本体１の前面開口部を開閉するスチール扉２の施錠装置３を例に挙げたが、この他に例えば集合住宅の各戸の通路側に面する壁面に形成される収納用の空間部の前面に形成される開口部を開閉するために設けられるスチール扉の施錠装置などにも適用できる。   Furthermore, in the present embodiment, the locking device 3 of the steel door 2 that opens and closes the front opening of the box body 1 is taken as an example. The present invention can also be applied to a steel door locking device provided to open and close an opening formed in the front surface of the storage space.

本発明の一実施の形態における施錠装置の斜視図である。It is a perspective view of the locking device in one embodiment of the present invention. 同施錠装置をスチール扉に取り付けた状態をスチール扉の内側から見た斜視図である。It is the perspective view which looked at the state which attached the locking device to the steel door from the inside of a steel door. 図２のＡ部拡大斜視図である。It is the A section expansion perspective view of FIG. 図２のＢ部拡大斜視図である。It is the B section enlarged perspective view of FIG. 図２のＣ部拡大斜視図である。It is the C section expansion perspective view of FIG. 同施錠装置を備えたスチール扉を前方から見た施錠状態の斜視図である。It is the perspective view of the locked state which looked at the steel door provided with the locking device from the front. 図６のＸ−Ｘ矢視図である。It is a XX arrow line view of FIG. 同施錠装置を備えたスチール扉を前方から見た施錠解除状態の斜視図である。It is the perspective view of the lock release state which looked at the steel door provided with the locking device from the front. 図８のＹ−Ｙ矢視図である。It is a YY arrow line view of FIG.

符号の説明Explanation of symbols

１ ボックス本体
２ スチール扉
３ 施錠装置
４ ハンドル
５ 回転軸
６ 中間の係止片
６ａ 先端部
７ 枢結ピン
８ 連結ロッド
９ 枢結ピン
１０ 上側の係止片
１０ａ 先端部
１１ 枢結ピン
１２ 連結ロッド
１３ 枢結ピン
１４ 下側の係止片
１４ａ 先端部
１５ 連結ピン
１６ 孔部
１７ ビス
１８ ハンドルケース
１９ 長孔
２０，２１ ブラケット
２２，２３ ピン
２４ 空間部
２５，２６ 長孔
２７，２８ 長孔
２９ 係止孔 DESCRIPTION OF SYMBOLS 1 Box main body 2 Steel door 3 Locking device 4 Handle 5 Rotating shaft 6 Middle locking piece 6a Tip part 7 Pivoting pin 8 Connecting rod 9 Pivoting pin 10 Upper locking piece 10a Tip part 11 Pivoting pin 12 Connecting rod 13 pivoting pin 14 lower locking piece 14a tip 15 connecting pin 16 hole 17 screw 18 handle case 19 long hole 20, 21 bracket 22, 23 pin 24 space 25, 26 long hole 27, 28 long hole 29 Locking hole

Claims (3)

空間部の前面に形成される開口部に蝶番により開閉自在に取り付けられたスチール扉の前記蝶番による回転枢支側とは反対側の端部に設けられる施錠装置であって、スチール扉の高さ方向の中間部においてスチール扉の外面に取り付けられたハンドルの回転軸に一側部が結合されハンドルの回転によって前記回転軸の回りで回動する中間の係止片と、この中間の係止片の前記回転軸との結合部よりも一側端部側において係止片の下端に枢結ピンにより下端が枢結された上向きの連結ロッドの上端に枢結ピンにより下端が枢結された上側の係止片と、前記中間の係止片の前記回転軸との結合部よりも他側部側における中間の係止片の上端に枢結ピンにより上端が枢結された下向きの連結ロッドの下端に枢結ピンにより上端が枢結された下側の係止片とを備えてなり、前記ハンドル操作により前記各係止片の先端部がスチール扉の前記蝶番による回転枢支側とは反対側の端面に形成された長孔に対し出退するように構成され、各係止片の先端部を前記空間部の側部に形成された係止孔に係止させスチール扉の閉塞状態を保持するように構成してなることを特徴とするスチール扉の施錠装置。 A locking device provided at the end of the steel door, which is attached to the opening formed in the front surface of the space portion by a hinge so as to be freely opened and closed, on the side opposite to the rotation pivot side by the hinge, the height of the steel door An intermediate locking piece whose one side is coupled to a rotating shaft of a handle attached to the outer surface of the steel door at an intermediate portion of the direction and rotates around the rotating shaft by the rotation of the handle, and the intermediate locking piece The lower end of the locking piece is pivotally connected to the upper end of the upward connecting rod whose lower end is pivotally connected to the lower end of the locking piece by the pivot pin on one side end side of the coupling portion with the rotating shaft. Of the downward connecting rod whose upper end is pivotally connected by a pivot pin to the upper end of the intermediate locking piece on the other side of the connecting portion of the intermediate locking piece and the rotating shaft of the intermediate locking piece. Lower engagement with the upper end pivoted to the lower end by a pivot pin And a distal end portion of each locking piece is configured to protrude and retreat with respect to a long hole formed on the end surface of the steel door opposite to the rotation pivot side by the hinge. The locking of the steel door is characterized in that the front end of each locking piece is locked in a locking hole formed in the side of the space to hold the closed state of the steel door apparatus. 上側の係止片の上端に枢結ピンにより下端が枢結された上向きの連結ロッドの上端に枢結ピンにより上端が枢結された係止片を備えてなり、ハンドル操作により各係止片の先端部がスチール扉の前記蝶番による回転枢支側とは反対側の端面に形成された長孔に対し出退するように構成され、各係止片の先端部を空間部の側部に形成された係止孔に係止させスチール扉の閉塞状態を保持するように構成してなることを特徴とする請求項１記載のスチール扉の施錠装置。 The upper end of the upper locking piece is provided with a locking piece whose upper end is pivoted by a pivoting pin at the upper end of an upward connecting rod whose lower end is pivoted by a pivoting pin. The front end of each locking piece is configured to be withdrawn from and retracted from a long hole formed on the end surface of the steel door opposite to the rotation support side by the hinge, and the front end of each locking piece is placed on the side of the space. 2. The steel door locking device according to claim 1, wherein the steel door is locked in the formed locking hole so as to hold the closed state of the steel door. 下側の係止片の下端に枢結ピンにより上端が枢結された下向きの連結ロッドの下端に枢結ピンにより下端が枢結された係止片を備えてなり、ハンドル操作により各係止片の先端部がスチール扉の前記蝶番による回転枢支側とは反対側の端面に形成された長孔に対し出退するように構成され、各係止片の先端部を空間部の側部に形成された係止孔に係止させスチール扉の閉塞状態を保持するように構成してなることを特徴とする請求項１または２記載のスチール扉の施錠装置。 The lower end of the lower locking piece is provided with a locking piece whose lower end is pivoted by a pivoting pin at the lower end of a downward connecting rod whose upper end is pivoted by a pivoting pin. The tip of each piece is configured to protrude and retreat with respect to a long hole formed on the end surface of the steel door opposite to the rotation pivot side by the hinge, and the tip of each locking piece is connected to the side of the space. The steel door locking device according to claim 1 or 2, characterized in that the steel door is locked in a locking hole formed in the structure to hold the closed state of the steel door.
JP2006108144A 2006-04-11 2006-04-11 Locking device for steel door Pending JP2007278004A (en)

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JP2010222907A (en) * 2009-03-25 2010-10-07 Koyo Sangyo Co Ltd Lock system of cremorne handle
WO2015002036A1 (en) * 2013-07-03 2015-01-08 Ｎｅｃプラットフォームズ株式会社 Door locking device and electronic equipment
FR3066221A1 (en) * 2017-05-09 2018-11-16 Comec JOINERY INCLUDING AN OPENING DEVICE AND LOCKING DEVICE OF THE OPENING DEVICE, AND ASSEMBLY COMPRISING SUCH A CARPENTRY
CN111075276A (en) * 2019-12-26 2020-04-28 王欣 Explosion-proof door assembly
WO2021240794A1 (en) * 2020-05-29 2021-12-02 東芝三菱電機産業システム株式会社 Lock mechanism

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JP2010222907A (en) * 2009-03-25 2010-10-07 Koyo Sangyo Co Ltd Lock system of cremorne handle
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CN111075276A (en) * 2019-12-26 2020-04-28 王欣 Explosion-proof door assembly
WO2021240794A1 (en) * 2020-05-29 2021-12-02 東芝三菱電機産業システム株式会社 Lock mechanism
CN114072565A (en) * 2020-05-29 2022-02-18 东芝三菱电机产业系统株式会社 Locking mechanism
JP7038890B1 (en) * 2020-05-29 2022-03-18 東芝三菱電機産業システム株式会社 Lock mechanism
CN114072565B (en) * 2020-05-29 2023-02-28 东芝三菱电机产业系统株式会社 Locking mechanism

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