JP5219066B2 - Door guard - Google Patents

Door guard Download PDF

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JP5219066B2
JP5219066B2 JP2007240551A JP2007240551A JP5219066B2 JP 5219066 B2 JP5219066 B2 JP 5219066B2 JP 2007240551 A JP2007240551 A JP 2007240551A JP 2007240551 A JP2007240551 A JP 2007240551A JP 5219066 B2 JP5219066 B2 JP 5219066B2
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arm
door
locking
plate member
vertical plate
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JP2009068304A (en
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卓司 南
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大阪金具株式会社
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Description

本発明は、建物の固定部材又は扉の一方に取り付けられるアーム係止具と、他方に略水平方向に回動するように取り付けられるアームとからなるドアガードに関するものである。   The present invention relates to a door guard comprising an arm locking member attached to one of a fixing member or a door of a building and an arm attached to the other so as to rotate in a substantially horizontal direction.

従来、所定角度以上の開扉を阻止するために、建物の固定部材又は扉の一方に取り付けられるアーム係止具と、他方に略水平方向に回動するように取り付けられるアームとからなるドアガードが汎用されている。   Conventionally, in order to prevent the door from opening more than a predetermined angle, a door guard comprising an arm locking member attached to one of a fixed member of a building or a door and an arm attached to the other so as to rotate in a substantially horizontal direction. It is widely used.

ところで、このドアガードは、通常、先端を大径に形成したアーム係止具と、このアーム係止具が挿通されるＵ字状のアームとで構成するようにしている（例えば、特許文献１及び２参照）。
このうち、Ｕ字状のアームは、ロストワックス法やダイキャスト法による鋳造製品が汎用されているが、製品強度及び製造コストの点で問題があった。 By the way, this door guard is normally configured by an arm locking tool having a large diameter tip and a U-shaped arm through which the arm locking tool is inserted (for example, Patent Document 1 and Patent Document 1). 2).
Among these, U-shaped arms are widely used as cast products by the lost wax method or die-cast method, but there are problems in terms of product strength and manufacturing cost.

登録実用新案第３０２７９５１号公報Registered Utility Model No. 3027951 特開平９−２９１７４２号公報JP 9-291742 A

本発明は、上記従来のドアガードの有する問題点に鑑み、アームの製品強度が大きく、製造コストを低廉化できるドアガードを提供することを第１の目的とする。   In view of the above-described problems of the conventional door guard, it is a first object of the present invention to provide a door guard that has a large arm strength and can be manufactured at low cost.

また、本発明は、扉を開いた状態で、アームのアーム係止具への係止及び係止の解除を可能にすることにより、補助錠の機能を持たせることができるようにしたドアガードを提供することを第２の目的とする。   In addition, the present invention provides a door guard that can function as an auxiliary lock by allowing the arm to be locked to and unlocked from the arm locking tool with the door open. The second purpose is to provide it.

上記第１及び第２の目的を達成するため、本発明のドアガードは、建物の固定部材又は扉の一方に取り付けられるアーム係止具と、他方に略水平方向に回動するように取り付けられるアームとからなるドアガードにおいて、アームを、被枢着部を形成した金属材料からなる横板部材と、扉を所定角度開いたときにアーム係止具が当接するストッパ部を曲げ加工により形成した金属材料からなる縦板部材とを、溶接により一体化して形成するとともに、アーム係止具を、アーム係止具の抜止片がアームの縦板部材を抜け止め状に保持しながら、アームの基端側から先端側に向けて相対移動し、扉が所定角度開いたときにアームの縦板部材のストッパ部がアーム係止具に当接することによってそれ以上の開扉が阻止されるようにし、かつ、アーム係止具の抜止片に、解錠操作することにより抜止片を直接可動にする錠部材を配設し、扉を開いた状態で、アームのアーム係止具への係止及び係止の解除を可能にしたことを特徴とする。 In order to achieve the first and second objects, the door guard of the present invention includes an arm locking tool attached to one of a fixed member of a building or a door and an arm attached to the other so as to rotate in a substantially horizontal direction. In the door guard comprising: a metal material formed by bending an arm, a horizontal plate member made of a metal material forming a pivotally attached portion, and a stopper portion that comes into contact with the arm lock when the door is opened at a predetermined angle The arm plate is integrally formed by welding , and the arm locking device is formed on the base end side of the arm while the retaining plate of the arm locking device holds the arm vertical plate member in a retaining shape. From the front end side, when the door is opened at a predetermined angle, the stopper portion of the vertical plate member of the arm abuts against the arm locking tool to prevent further opening , and arm A locking member that moves the retaining piece directly by unlocking it is arranged on the retaining piece of the stopper, and the arm can be locked and released from the arm locking device with the door open. It is possible to make it possible.

また、同じ目的を達成するため、本発明のドアガードは、建物の固定部材又は扉の一方に取り付けられるアーム係止具と、他方に略水平方向に回動するように取り付けられるアームとからなるドアガードにおいて、アームを、被枢着部を形成した金属材料からなる横板部材と、扉を所定角度開いたときにアーム係止具が当接するストッパ部を曲げ加工により形成した金属材料からなる縦板部材とを、溶接により一体化して形成するとともに、アーム係止具を、アーム係止具の抜止片がアームの縦板部材を抜け止め状に保持しながら、アームの基端側から先端側に向けて相対移動し、扉が所定角度開いたときにアームの縦板部材のストッパ部がアーム係止具に当接することによってそれ以上の開扉が阻止されるようにし、かつ、アーム係止具の抜止片に、選択的に押し操作することにより抜止片を直接可動にする複数個の押釦を配設し、扉を開いた状態で、アームのアーム係止具への係止及び係止の解除を可能にしたことを特徴とする。 In order to achieve the same object, the door guard of the present invention is a door guard comprising an arm locking member attached to one of a fixed member of a building or a door and an arm attached to the other so as to rotate in a substantially horizontal direction. In the above, the arm is a vertical plate made of a metal material formed by bending a horizontal plate member made of a metal material forming a pivotally attached portion, and a stopper portion that comes into contact with the arm locking tool when the door is opened at a predetermined angle. The arm locking member is formed integrally by welding , and the arm locking member is retained from the base end side of the arm to the distal end side while the retaining piece of the arm locking member holds the vertical plate member of the arm in a retaining shape. When the door is opened at a predetermined angle, the stopper of the vertical plate member of the arm abuts against the arm locking device to prevent further opening , and the arm locking device of A plurality of pushbuttons are provided on the stop piece to selectively move the stop piece by selectively pushing, and the arm is locked to the arm lock and the lock is released with the door open. It is possible to make it possible.

本発明のドアガードによれば、建物の固定部材又は扉の一方に取り付けられるアーム係止具と、他方に略水平方向に回動するように取り付けられるアームとからなるドアガードにおいて、アームを、被枢着部を形成した金属材料からなる横板部材と、扉を所定角度開いたときにアーム係止具が当接するストッパ部を曲げ加工により形成した金属材料からなる縦板部材とを、溶接により一体化して形成することにより、アームの製品強度が大きく、製造コストを低廉化できるドアガードを提供することができる。   According to the door guard of the present invention, in the door guard comprising the arm locking tool attached to one of the fixed member of the building or the door and the arm attached to the other so as to rotate in a substantially horizontal direction, the arm is pivoted. A horizontal plate member made of a metal material formed with a contact portion and a vertical plate member made of a metal material formed by bending a stopper portion with which an arm locking tool abuts when the door is opened at a predetermined angle by welding. By forming the door guard, it is possible to provide a door guard that can increase the product strength of the arm and reduce the manufacturing cost.

また、アーム係止具のアームの縦板部材を抜け止め状に保持する抜止片を可動に構成して、扉を開いた状態で、アームのアーム係止具への係止及び係止の解除を可能にすることにより、ドアガードに補助錠の機能を持たせることができる。   In addition, the locking piece that holds the arm vertical plate member of the arm locking device in a retaining shape is configured to be movable so that the arm can be locked and released from the arm locking device with the door open. By making this possible, the door guard can have the function of an auxiliary lock.

また、アーム係止具のアームの縦板部材を抜け止め状に保持する抜止片に、解錠操作することにより抜止片を可動にする錠部材を配設することにより、ドアガードに施錠することができる。   In addition, the door guard can be locked by disposing a locking member that makes the retaining piece movable by unlocking the retaining member that holds the vertical plate member of the arm locking tool in a retaining shape. it can.

また、アーム係止具のアームの縦板部材を抜け止め状に保持する抜止片に、選択的に押し操作することにより抜止片を可動にする複数個の押釦を配設することにより、ドアガードに簡易に施錠することができる。   Further, the door guard is provided with a plurality of push buttons that move the retaining piece by selectively pushing the retaining piece that holds the vertical plate member of the arm locking member in a retaining shape. It can be locked easily.

以下、本発明のドアガードの実施の形態を、図面に基づいて説明する。   Embodiments of the door guard of the present invention will be described below with reference to the drawings.

図１に、本発明のドアガードの第１実施例を示す。
このドアガードは、建物の固定部材又は扉の一方に取り付けられるアーム係止具１と、他方に略水平方向に回動するように取り付けられるアーム２とからなり、このうち、アーム２を、被枢着部２１ａを形成した金属材料からなる横板部材２１と、一端側に扉を所定角度開いたときにアーム係止具１が当接するストッパ部２２ａを曲げ加工により形成するとともに、他端側に先端の幅が漸次狭くなる導入部２２ｂを形成した金属材料からなる縦板部材２２とを、溶接（溶接部Ｗ）により一体化して形成するようにしたものである。 FIG. 1 shows a first embodiment of the door guard of the present invention.
This door guard is composed of an arm locking tool 1 attached to one of a fixed member of a building or a door, and an arm 2 attached to the other so as to rotate in a substantially horizontal direction. The horizontal plate member 21 made of a metal material forming the attachment portion 21a and the stopper portion 22a with which the arm locking tool 1 abuts when the door is opened at a predetermined angle on one end side are formed by bending, and on the other end side. The vertical plate member 22 made of a metal material on which the introduction portion 22b whose tip width is gradually narrowed is integrally formed by welding (welding portion W).

この場合において、アーム２を構成する横板部材２１及び縦板部材２２は、所定厚さの鋼やステンレス鋼の板材からなり、これを所定形状に切断するとともに、縦板部材２２の端部を曲げ加工してストッパ部２２ａを形成した後、スポット溶接等の溶接（溶接部Ｗ）により一体化するようにする。
このように、アーム２を、被枢着部２１ａを形成した金属材料からなる横板部材２１と、扉を所定角度開いたときにアーム係止具１が当接するストッパ部２２ａを曲げ加工により形成した金属材料からなる縦板部材２２とを、溶接（溶接部Ｗ）により一体化して形成することにより、アーム２の製品強度が大きく、製造コストを低廉化できるドアガードを提供することができる。 In this case, the horizontal plate member 21 and the vertical plate member 22 constituting the arm 2 are made of a plate material of steel or stainless steel having a predetermined thickness, cut into a predetermined shape, and the end of the vertical plate member 22 is After forming the stopper portion 22a by bending, it is integrated by welding (welding portion W) such as spot welding.
In this way, the arm 2 is formed by bending the horizontal plate member 21 made of a metal material forming the pivoted portion 21a and the stopper portion 22a with which the arm locking tool 1 abuts when the door is opened at a predetermined angle. By forming the vertical plate member 22 made of the metal material integrally by welding (welding portion W), it is possible to provide a door guard that can increase the product strength of the arm 2 and can reduce the manufacturing cost.

アーム２は、横板部材２１の被枢着部２１ａを、建物の固定部材又は扉に、枢着部材２３を介して、略水平方向に回動するように取り付けられる。
枢着部材２３には、必要に応じて、カバー部材２４を設けることができる。 The arm 2 is attached so that the pivoted portion 21a of the horizontal plate member 21 is pivoted in a substantially horizontal direction via a pivot member 23 to a fixed member or door of the building.
The pivot member 23 may be provided with a cover member 24 as necessary.

アーム係止具１は、アーム２の縦板部材２２を抜け止め状に保持する抜止片１１を備え、建物の固定部材又は扉に取り付けられる。   The arm locking tool 1 includes a retaining piece 11 that holds the vertical plate member 22 of the arm 2 in a retaining shape, and is attached to a fixed member or door of a building.

ところで、本実施例においては、横板部材２１と縦板部材２２とを溶接（溶接部Ｗ）により一体化してアーム２の断面形状を略Ｔ字状に形成するようにしたが、アーム２の断面形状は、これに限定されず、例えば、図２に示す第２実施例のように、アーム２の断面形状を略Ｌ字状に形成するようにすることもできる。   By the way, in the present embodiment, the horizontal plate member 21 and the vertical plate member 22 are integrated by welding (welding portion W) to form the cross-sectional shape of the arm 2 in a substantially T shape. The cross-sectional shape is not limited to this, and for example, the cross-sectional shape of the arm 2 can be formed in a substantially L shape as in the second embodiment shown in FIG.

このように、上記各実施例においては、アーム２の縦板部材２２を抜け止め状に保持する抜止片１１を固定して備えたアーム係止具１を用い、通常位置（閉扉位置）からアーム係止具１側のガード位置にアーム２をセットした状態で開扉することによって、アーム係止具１の抜止片１１はアーム３の縦板部材２２を抜け止め状に保持しながら、アーム２の基端側から先端側に向けて相対移動し、扉が所定角度開いたときにアーム３の縦板部材２２のストッパ部２２ａがアーム係止具１に当接することによってそれ以上の開扉が阻止される。   As described above, in each of the above-described embodiments, the arm locking tool 1 provided with the retaining piece 11 that holds the vertical plate member 22 of the arm 2 in a retaining shape is used, and the arm is moved from the normal position (door closed position). By opening the door with the arm 2 set at the guard position on the side of the locking tool 1, the retaining piece 11 of the arm locking tool 1 holds the vertical plate member 22 of the arm 3 in a retaining shape while holding the arm 2. When the door is opened at a predetermined angle, the stopper portion 22a of the vertical plate member 22 of the arm 3 comes into contact with the arm locking device 1 to open the door further. Be blocked.

そして、上記のように、アーム２の縦板部材２２を抜け止め状に保持する抜止片１１を固定して備えたアーム係止具１（参考例）を用いるほか、アーム２の縦板部材２２を抜け止め状に保持する抜止片１１を可動に構成して、扉を開いた状態で、アーム２のアーム係止具１への係止及び係止の解除を可能に構成することができる。
これにより、外出時等に外側からアーム２のアーム係止具１への係止及び係止の解除ができるため、ドアガードに補助錠の機能を持たせることができる。 Then, as described above , in addition to using the arm locking tool 1 (reference example) provided with the retaining piece 11 that holds the longitudinal plate member 22 of the arm 2 in a retaining shape, the longitudinal plate member 22 of the arm 2 is used. The retaining piece 11 that holds the arm 2 in a retaining shape can be configured to be movable so that the arm 2 can be locked to and unlocked from the arm locking tool 1 with the door open.
As a result, the door guard can be provided with the function of an auxiliary lock because the arm 2 can be locked and released from the arm locking tool 1 from the outside when going out.

より具体的には、図３に示すように、アーム係止具１のアーム２の縦板部材２２を抜け止め状に保持する抜止片１１に、解錠操作することにより抜止片１１を揺動可能にする錠部材１２を配設することにより、ドアガードに施錠するようにすることができる。
なお、このアーム係止具１は、上記第２実施例の断面形状を略Ｌ字状に形成したアーム２用のものである。 More specifically, as shown in FIG. 3, the retaining piece 11 is swung by unlocking the retaining member 11 that holds the vertical plate member 22 of the arm 2 of the arm locking device 1 in a retaining shape. By disposing the locking member 12 to be enabled, the door guard can be locked.
The arm locking tool 1 is for the arm 2 in which the cross-sectional shape of the second embodiment is formed in a substantially L shape.

また、図４に示すように、アーム係止具１のアーム２の縦板部材２２を抜け止め状に保持する抜止片１１に、解錠操作することにより抜止片１１を摺動可能にする錠部材１２を配設することにより、ドアガードに施錠するようにすることができる。
なお、このアーム係止具１は、上記第１実施例の断面形状を略Ｔ字状に形成したアーム２用のものである。 Further, as shown in FIG. 4, a lock that allows the retaining piece 11 to be slidable by unlocking the retaining member 11 that holds the vertical plate member 22 of the arm 2 of the arm locking device 1 in a retaining shape. By disposing the member 12, the door guard can be locked.
The arm locking device 1 is for an arm 2 in which the cross-sectional shape of the first embodiment is formed in a substantially T shape.

また、図５に示すように、アーム係止具１のアーム２の縦板部材２２を抜け止め状に保持する抜止片１１に、選択的に押し操作することにより抜止片１１を揺動可能にする複数個の押釦１３（この場合、すべての押釦１３を押し操作しても抜止片１１は揺動可能とならない）を配設することにより、ドアガードに簡易に施錠することができる。
なお、このアーム係止具１は、上記第１実施例の断面形状を略Ｔ字状に形成したアーム２用のものである。 Further, as shown in FIG. 5, the retaining piece 11 can be swung by selectively pushing the retaining member 11 that holds the vertical plate member 22 of the arm 2 of the arm locking device 1 in a retaining shape. By arranging a plurality of push buttons 13 (in this case, the retaining pieces 11 are not swingable even if all the push buttons 13 are pushed), the door guard can be easily locked.
The arm locking device 1 is for an arm 2 in which the cross-sectional shape of the first embodiment is formed in a substantially T shape.

以上、本発明のドアガードについて、複数の実施例に基づいて説明したが、本発明は上記実施例に記載した構成に限定されるものではなく、各実施例に記載した構成を適宜組み合わせる等、その趣旨を逸脱しない範囲において適宜その構成を変更することができるものである。   As mentioned above, although the door guard of the present invention has been described based on a plurality of embodiments, the present invention is not limited to the configurations described in the above embodiments, such as appropriately combining the configurations described in the embodiments. The configuration can be changed as appropriate without departing from the spirit of the invention.

本発明のドアガードは、アームの製品強度が大きく、製造コストを低廉化できるという特性を有していることから、汎用のドアガードの用途に広く用いることができる。   The door guard of the present invention has characteristics that the product strength of the arm is large and the manufacturing cost can be reduced, so that it can be widely used for general-purpose door guards.

本発明のドアガードの第１実施例を示し、（ａ）は平面図、（ｂ）は正面図、（ｃ）は底面図、（ｄ）は枢着部材の正面図、（ｅ）は枢着部材の底面図、（ｆ）はアーム係止具の正面図、（ｇ）はアームを係止した状態のアーム係止具の側面断面図、（ｈ）はカバー部材の正面図、（ｉ）はカバー部材の側面図である。1 shows a first embodiment of a door guard according to the present invention, (a) is a plan view, (b) is a front view, (c) is a bottom view, (d) is a front view of a pivoting member, and (e) is pivoted. The bottom view of a member, (f) is a front view of an arm locking tool, (g) is a side sectional view of the arm locking tool in a state where the arm is locked, (h) is a front view of the cover member, (i) FIG. 4 is a side view of the cover member. 本発明のドアガードの第２実施例を示し、（ａ）は正面図、（ｂ）はアームをアーム係止具側のガード位置にセットした状態の正面図、（ｃ）は底面図、（ｄ）は枢着部材の正面図、（ｅ）はアーム係止具の側面図である。2 shows a second embodiment of the door guard of the present invention, (a) is a front view, (b) is a front view of the arm set at a guard position on the arm locking tool side, (c) is a bottom view, (d ) Is a front view of the pivot attachment member, and (e) is a side view of the arm locking tool. 抜止片を可動に構成したアーム係止具を示し、（ａ）は係止状態の正面図、（ｂ）は係止解除状態の正面図、（ｃ）は係止状態の側面断面図である。The arm locking tool which comprised the retaining piece movably is shown, (a) is a front view in the locked state, (b) is a front view in the unlocked state, and (c) is a side sectional view in the locked state. . 抜止片を可動に構成したアーム係止具を示し、（ａ）は係止状態の側面図、（ｂ）は係止解除状態の正面図、（ｃ）は係止解除状態の側面断面図である。The arm locking tool which comprised the removal piece movably is shown, (a) is a side view in the locked state, (b) is a front view in the unlocked state, and (c) is a side sectional view in the unlocked state. is there. 抜止片を可動に構成したアーム係止具を示し、（ａ）は係止状態の正面図、（ｂ）は係止解除状態の正面図、（ｃ）は係止状態の側面断面図である。The arm locking tool which comprised the retaining piece movably is shown, (a) is a front view in the locked state, (b) is a front view in the unlocked state, and (c) is a side sectional view in the locked state. .

１ アーム係止具
１１ 抜止片
１２ 錠部材
１３ 押釦
２ アーム
２１ 横板部材
２１ａ 被枢着部
２２ 縦板部材
２２ａ ストッパ部
２２ｂ 導入部
２３ 枢着部材
２４ カバー部材
Ｗ 溶接部 DESCRIPTION OF SYMBOLS 1 Arm locking tool 11 Locking piece 12 Locking member 13 Push button 2 Arm 21 Horizontal plate member 21a Pivoting part 22 Vertical plate member 22a Stopper part 22b Introduction part 23 Pivoting member 24 Cover member W Welding part

Claims (2)

建物の固定部材又は扉の一方に取り付けられるアーム係止具と、他方に略水平方向に回動するように取り付けられるアームとからなるドアガードにおいて、アームを、被枢着部を形成した金属材料からなる横板部材と、扉を所定角度開いたときにアーム係止具が当接するストッパ部を曲げ加工により形成した金属材料からなる縦板部材とを、溶接により一体化して形成するとともに、アーム係止具を、アーム係止具の抜止片がアームの縦板部材を抜け止め状に保持しながら、アームの基端側から先端側に向けて相対移動し、扉が所定角度開いたときにアームの縦板部材のストッパ部がアーム係止具に当接することによってそれ以上の開扉が阻止されるようにし、かつ、アーム係止具の抜止片に、解錠操作することにより抜止片を直接可動にする錠部材を配設し、扉を開いた状態で、アームのアーム係止具への係止及び係止の解除を可能にしたことを特徴とするドアガード。 In a door guard comprising an arm locking member attached to one of a fixed member of a building or a door and an arm attached to the other so as to rotate in a substantially horizontal direction, the arm is made of a metal material forming a pivoted portion. The horizontal plate member and the vertical plate member made of a metal material formed by bending the stopper portion with which the arm locking tool comes into contact when the door is opened at a predetermined angle are integrally formed by welding , and The stopper moves relative to the base end side of the arm from the base end side to the tip end side while the retaining piece of the arm locking member holds the vertical plate member of the arm to prevent it from coming off. When the stopper part of the vertical plate member abuts against the arm locking tool, further opening of the door is prevented , and the locking piece is directly attached to the locking piece of the arm locking tool by the unlocking operation. Move It disposed a lock member, with open doors, characterized in that to allow the release of the locking and the locking of the arm locking means of the arm Door Guard. 建物の固定部材又は扉の一方に取り付けられるアーム係止具と、他方に略水平方向に回動するように取り付けられるアームとからなるドアガードにおいて、アームを、被枢着部を形成した金属材料からなる横板部材と、扉を所定角度開いたときにアーム係止具が当接するストッパ部を曲げ加工により形成した金属材料からなる縦板部材とを、溶接により一体化して形成するとともに、アーム係止具を、アーム係止具の抜止片がアームの縦板部材を抜け止め状に保持しながら、アームの基端側から先端側に向けて相対移動し、扉が所定角度開いたときにアームの縦板部材のストッパ部がアーム係止具に当接することによってそれ以上の開扉が阻止されるようにし、かつ、アーム係止具の抜止片に、選択的に押し操作することにより抜止片を直接可動にする複数個の押釦を配設し、扉を開いた状態で、アームのアーム係止具への係止及び係止の解除を可能にしたことを特徴とするドアガード。 In a door guard comprising an arm locking member attached to one of a fixed member of a building or a door and an arm attached to the other so as to rotate in a substantially horizontal direction, the arm is made of a metal material forming a pivoted portion. The horizontal plate member and the vertical plate member made of a metal material formed by bending the stopper portion with which the arm locking tool comes into contact when the door is opened at a predetermined angle are integrally formed by welding , and The stopper moves relative to the base end side of the arm from the base end side to the tip end side while the retaining piece of the arm locking member holds the vertical plate member of the arm to prevent it from coming off. When the stopper portion of the vertical plate member abuts against the arm locking device, further opening of the door is prevented , and the retaining piece of the arm locking device is selectively pushed to operate the retaining piece. Directly A plurality of push button to dynamic disposed, with open doors, characterized in that to allow the release of the locking and the locking of the arm locking means of the arm Door Guard.
JP2007240551A 2007-09-18 2007-09-18 Door guard Expired - Fee Related JP5219066B2 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0529330Y2 (en) * 1988-03-15 1993-07-27
JP3516237B2 (en) * 1998-12-21 2004-04-05 株式会社奥田製作所 Door guard
JP2002038784A (en) * 2000-07-24 2002-02-06 Hajime Nakajima Door chain with key
JP4181787B2 (en) * 2002-03-26 2008-11-19 美和ロック株式会社 Door guard with lock
JP4222956B2 (en) * 2003-02-28 2009-02-12 リョービ株式会社 Door guard
JP4553755B2 (en) * 2005-03-02 2010-09-29 リョービ株式会社 Door guard

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