JP3451520B2 - Disaster prevention door - Google Patents
Disaster prevention doorInfo
- Publication number
- JP3451520B2 JP3451520B2 JP17409196A JP17409196A JP3451520B2 JP 3451520 B2 JP3451520 B2 JP 3451520B2 JP 17409196 A JP17409196 A JP 17409196A JP 17409196 A JP17409196 A JP 17409196A JP 3451520 B2 JP3451520 B2 JP 3451520B2
- Authority
- JP
- Japan
- Prior art keywords
- door
- edge
- frame
- opening
- upper edge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Description
【発明の詳細な説明】
【０００１】
【発明の属する技術分野】本発明は防災用ドアに係り、
詳しくは、耐震性及び防火性に優れた防災用ドアに関す
るものである。
【０００２】
【従来の技術】通常のドアは四周枠からなる枠体に納ま
っているので、地震等により構造物に水平方向の力が加
わると建物の層間変位により枠体が変形してドアが開放
不能となってしまう畏れがある。実際、昭和５３年の宮
城県沖地震ではドアが開かないことによる被害が発生
し、以後、種々の耐震ドアが提案されている。
【０００３】耐震ドアは層間変位が起きても、解錠・開
扉が可能なように設計され、これまでに提案された耐震
ドアとしては、例えば、扉と戸先側枠及び上下枠とのク
リアランスを大きくとり、かつストライクを変形可能に
したもの、扉と枠のクリアランスを大きくとり、扉及び
枠の周囲にテ−パ−を付けたもの、あるいは、ドアに潜
り戸を設けたもの等がある。
【０００４】
【発明が解決しようとする課題】本発明は、かかる従来
の耐震ドアを踏まえた上で全く新しい視点から創案され
たものであって、十分な耐震性を有するものでありなが
ら、防火性及び防犯性も良好な防災用ドアを提供するこ
とを目的とする。
【０００５】
【課題を解決するための手段】上記課題を解決するため
に本発明が採用した技術手段は、戸先側縦縁、戸尻側縦
縁、上縁、下縁を有する開き戸の扉において、戸先側縦
縁を開口部の壁面より外側面を前方に突出させた枠体の
外側方に延出形成し、かつ扉の上縁が前記枠体の上縁よ
り高位となるように延出形成すると共に、前記扉の少な
くとも戸先側縦縁及び上縁には扉の見込方向に延出する
突片部を形成し、扉の閉鎖時には前記突片部が開口部の
枠体の周面を該枠体が建物の層間変位により変形しても
扉の開放が可能となるようなクリアランスを存して包覆
するようにしたことを特徴とするものである。
【０００６】本発明によると、扉は突片部を介して、開
口部枠体の周面を該枠体が建物の層間変位により変形し
ても扉の開放が可能となるようなクリアランスを存し
て、開口部枠体を包覆するようにしているので、通常の
ドアに比べて開口部枠体の変形による影響を受けにく
い。戸先側縦縁側のクリアランスを１０ｍｍ、上縁側の
クリアランスを２０ｍｍとして実験を行なったところ、
地震災害時に想定される建築物の大変形である層間変位
１／６０程度の変形であっても、通常時同様の開放力で
扉を開閉できることがわかった。
【０００７】また、扉は突片部によって開口部枠体を包
覆しているので、面付け扉でありながら、扉閉鎖時に開
口部と扉との間に防火上有害な直線状の貫通隙間が生じ
ることがなく、甲種防火戸の要件を具備するような構成
になっている。しかも、扉の突片部は開口部と扉の隙間
を塞ぐようになっているので、面付け扉でありながら防
犯性も確保することができる。尚、突片部は少なくとも
戸先側縦縁及び上縁に設けてあればよく、もちろん下縁
あるいは戸尻側縦縁に突片部を設けてもよい。
【０００８】
【発明の実施の形態】図１（ａ）は防災用ドアの概略正
面図及び平面図であって、方形の扉１は、戸先側縦縁
２、戸尻側縦縁３、上縁４、下縁５を有し、戸尻側縦縁
３を吊元側として扉１を開閉することで開口部６を開閉
するようになっている。
【０００９】図１（ｂ）は防災用ドアの側面図、（ｃ）
は防災用ドアの平面図であって、防災用ドアの扉１はい
わゆる面付け扉となっている。扉の吊元側には吊元用縦
部材７が開口部の戸尻側枠体に装着してあり、扉１の戸
尻側はヒンジ８介して縦部材７に回動自在に設けてあ
る。開口部６の四周には枠体９が設けてあるが、枠体９
の扉側に位置する外側面は開口部が設けられた壁体の面
１０より所定寸法前方に突出している。
【００１０】図１（ｂ）、（ｃ）から明らかなように、
戸先側縦縁２は開口部６の壁面１０より外側面を前方に
突出された枠体９の外側方に延出形成され、扉１の上縁
４は前記枠体９の上縁より高位となるように延出形成さ
れていると共に、戸先側縦縁２及び上縁４の開口部側の
面には扉の見込方向に延出する突片部１１、１１が形成
してある。突片部１１は、戸先側縦縁２及び上縁４の辺
の長さ方向に添って連続しており、扉閉鎖時には、開口
部の枠体９を包覆するようになっている。尚、実施例で
は扉１の端縁に突片部１１を設けたものを示したが、要
は、扉の周縁近傍に設けてあればよく、例えば扉の端縁
より一寸内側の見付面から突片部を延出させてもよい。
【００１１】扉閉鎖時において、突片部１１と開口部枠
体９の周面との間には所定のクリアランスＣ、すなわ
ち、建物の層間変位によって枠体９が変形しても、扉１
の開放が可能なクリアランスが形成されている。扉上縁
側のクリアランスＣ１は扉戸先側のクリアランスＣ２よ
りも若干大きめになっているが、これは、建物が層間変
位した場合に、縦方向の変位量のほうが横方向の変位量
よりも大きいことによるものである。実施例のもので
は、扉上縁側のクリアランスＣ１は約２０ｍｍ、扉戸先
側のクリアランスＣ２は約１０ｍｍに設定されており、
地震災害時に想定される建築物の大変形である層間変位
１／６０においても、通常時同様の開放力で扉１の開閉
を行なうことができるようになっている。
【００１２】扉閉鎖時において、扉１に設けた突片部１
１はあいじゃくり状に開口部の枠体９に重合するので、
扉１と開口部枠体９との間に直線状の貫通隙間が生じる
ことがなく有効に火炎の延焼を防ぐことができ、面付け
扉でありながら、「甲種防火戸」の要件をも充足するも
のである。さらに、扉１の突片部１１は開口部２と扉１
との隙間を塞ぐようになっているので、面付け扉であり
ながら防犯性をも確保することができる。尚、実施例で
は、扉下端縁５には突片部を設けなかったが、これは、
少なくとも扉上縁４及び扉戸先側縁２に突片部を設けれ
ば防火性能上十分であると考えられたものであって、も
ちろん、扉下縁５に突片部を形成するようにしてもよ
い。
【００１３】開口部枠体９の扉に臨む面には気密材１２
が設けてあり、開口部閉鎖時に、扉１の見付面が気密材
１２に当接して気密材１２を押圧するようになってい
る。また、実施例にかかる防災用ドアは吊元用縦部材７
と扉１から構成されるので、既存枠を利用して丁番によ
って防災用ドアを施工することができる。
【００１４】図２は、防災用ドアの他の実施例であっ
て、基本的な構成は図１のものと同様であり、同部材に
は同一の符号を附してある。このものでは、扉１の戸尻
側縁５の開口部側の面にも扉の見込方向に延出する突片
部１１を形成し、扉１は戸先側縦縁２、戸尻側縦縁３及
び上縁４の三方において枠体９に重合して包覆するよう
になっている。扉１は別途設けたピボットヒンジ８ａに
よって戸尻側縦縁側を回動支点として開閉するようにし
てある。
【００１５】
【発明の効果】本発明は、戸先側縦縁、戸尻側縦縁、上
縁、下縁を有する開き戸の扉において、戸先側縦縁を開
口部の壁面より外側面を前方に突出させた枠体の外側方
に延出形成し、かつ扉の上縁が前記枠体の上縁より高位
となるように延出形成すると共に、前記扉の少なくとも
戸先側縦縁及び上縁には扉の見込方向に延出する突片部
を形成し、扉の閉鎖時には前記突片部が開口部の枠体の
周面を該枠体が建物の層間変位により変形しても扉の開
放が可能となるようなクリアランスを存して包覆するよ
うにしたことを特徴とするので、以下に述べるような有
利な効果を奏するものである。
（１）扉を枠体周面との間に所定クリアランスを存して
枠体を包覆するようにしたので、層間変位により枠体が
変形しても、通常時同様の開放力で扉の開閉を行なうこ
とができる。
（２）扉は突片部を介して開口部枠体を包覆するように
したので、面付け扉でありながら、防火機能にとって有
害な直線的な貫通隙間が生じることがなく、構造規定上
の防火戸の要件を具備するものである。
（３）扉は突片部を介して開口部枠体を包覆するように
したので、面付け扉でありながら、突片部が開口部と扉
の隙間を塞ぎ、防犯性を確保することができる。
（４）本発明にかかる防災用ドアは、吊元部材と扉を用
意するだけで施工することができるので、既存の枠体を
利用して本願の防災用ドアを設置することができる。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door for disaster prevention,
More specifically, the present invention relates to a disaster prevention door having excellent earthquake resistance and fire resistance. 2. Description of the Related Art Since a normal door is housed in a frame composed of four frames, when a horizontal force is applied to a structure due to an earthquake or the like, the frame is deformed due to interlayer displacement of the building, and the door is closed. There is a fear that it cannot be opened. In fact, the Miyagiken-oki earthquake in 1978 caused damage due to the door not opening, and various seismic doors have been proposed since then. [0003] The aseismic door is designed so that it can be unlocked and opened even if interlayer displacement occurs. Examples of the aseismic doors that have been proposed include, for example, a door, a door-end side frame, and upper and lower frames. Some have a large clearance and deformable strike, some have a large clearance between the door and the frame, and have taper around the door and the frame, or some have a door with a sneaking door. . SUMMARY OF THE INVENTION [0004] The present invention has been made from a completely new viewpoint based on such a conventional earthquake-resistant door. It is an object of the present invention to provide a door for disaster prevention which has good security and security. [0005] In order to solve the above-mentioned problems, the technical means adopted by the present invention is a hinged door having a door edge side vertical edge, a door edge side vertical edge, an upper edge, and a lower edge. In, the doorside vertical
The edge of the frame with the outer side protruding forward from the wall of the opening
It extends outward and the upper edge of the door is the upper edge of the frame.
At the same time, the protruding portion is formed at least at the door edge side vertical edge and the upper edge of the door, and the protruding portion extends in the anticipated direction of the door, and when the door is closed, the protruding portion is formed. Even if the frame deforms the peripheral surface of the frame of the opening due to interlayer displacement of the building.
It is characterized in that it is covered with a clearance that allows the door to be opened . According to the present invention, the door deforms the peripheral surface of the opening frame by the interlayer displacement of the building via the projecting piece.
Even so , since the opening frame is covered with a clearance that allows the door to be opened , the opening frame is less affected by deformation of the opening frame as compared with a normal door. The experiment was conducted with the clearance on the vertical edge side of the door side being 10 mm and the clearance on the upper edge side being 20 mm.
It was found that the door can be opened and closed with the same opening force as usual even with a deformation of about 1/60 of the interlayer displacement which is a large deformation of the building assumed at the time of the earthquake disaster. Further, since the door covers the opening frame with the projecting piece, the door is an imposition door, but when the door is closed, there is a linear through gap between the opening and the door that is harmful to fire protection. No fire occurs, and the configuration is such that the requirements for class A fire doors are satisfied. Moreover, since the protruding portion of the door closes the gap between the opening and the door, it is possible to secure security even though it is an imposition door. The protruding pieces may be provided on at least the vertical edge and the upper edge on the door end side, and may be provided on the lower edge or the vertical edge on the door end side. FIG. 1 (a) is a schematic front view and a plan view of a disaster prevention door. A rectangular door 1 has a vertical edge 2 at a door end, a vertical edge 3 at a door end side, It has an upper edge 4 and a lower edge 5, and the opening 6 is opened and closed by opening and closing the door 1 with the door edge side vertical edge 3 as a hanging side. FIG. 1B is a side view of the disaster prevention door, and FIG.
Is a plan view of a door for disaster prevention, and the door 1 of the door for disaster prevention is a so-called imposition door. On the hanging side of the door, a hanging vertical member 7 is mounted on the door bottom frame of the opening, and the door bottom side of the door 1 is rotatably provided on the vertical member 7 via the hinge 8. . A frame 9 is provided around the periphery of the opening 6.
The outer surface located on the side of the door projects forward by a predetermined distance from the surface 10 of the wall body provided with the opening. As is clear from FIGS. 1B and 1C,
Door end side vertical edge 2 has an outer side surface forward than wall surface 10 of opening 6
The upper edge of the door 1 is formed so as to extend outside the protruding frame 9.
4 is formed so as to extend above the upper edge of the frame 9.
At the same time, projecting pieces 11, 11 are formed on the opening side surfaces of the vertical edge 2 and the upper edge 4 on the door end side in the direction in which the door can be seen. The protruding piece portion 11 is continuous along the length direction of the side of the vertical edge 2 and the upper edge 4 on the door end side, and covers the opening frame 9 when the door is closed. In the embodiment, the projection 1 is provided on the edge of the door 1. However, it is sufficient that the projection 11 is provided near the peripheral edge of the door. The projecting piece may be extended from. [0011] During door closing, a predetermined clearance C between the circumferential surface of the protrusion portion 11 and the opening frame 9, Sunawa
Even if the frame 9 is deformed due to the interlayer displacement of the building, the door 1
The clearance which can open is formed . The clearance C1 on the upper edge side of the door is slightly larger than the clearance C2 on the front side of the door. However, when the building is displaced between layers, the vertical displacement is larger than the horizontal displacement. It is because of that. In the example, the clearance C1 on the upper edge side of the door is set to about 20 mm, the clearance C2 on the front side of the door is set to about 10 mm,
The door 1 can be opened and closed with the same opening force at normal times even at the interlayer displacement 1/60, which is a large deformation of the building assumed at the time of the earthquake disaster. When the door is closed, the projection 1 provided on the door 1
1 overlaps with the frame 9 of the opening in a jagged shape,
There is no linear through-gap between the door 1 and the opening frame 9, which can effectively prevent the spread of flames. Even though it is an imposition door, it satisfies the requirement of "Class A fire door". Is what you do. Further, the projecting piece 11 of the door 1 is
Because it is designed to close the gap with the door, it is possible to secure security even though it is an imposition door. In the embodiment, the projecting piece is not provided on the lower edge 5 of the door.
It is considered that providing a projecting portion at least on the door upper edge 4 and the door edge side edge 2 is considered to be sufficient for fire prevention performance. Of course, a projecting portion is formed on the door lower edge 5. You may. An airtight material 12 is provided on the surface of the opening frame 9 facing the door.
When the opening is closed, the found surface of the door 1 comes into contact with the airtight material 12 to press the airtight material 12. In addition, the disaster prevention door according to the embodiment is a hanging vertical member 7.
And the door 1, it is possible to construct a disaster prevention door by using a hinge using an existing frame. FIG. 2 shows another embodiment of the disaster prevention door. The basic structure is the same as that of FIG. 1, and the same members are denoted by the same reference numerals. In this embodiment, a protruding piece 11 extending in the direction in which the door is projected is also formed on the surface of the door 1 on the opening side of the door edge 5 of the door 1, and the door 1 has a door edge vertical edge 2 and a door edge vertical. At three sides of the edge 3 and the upper edge 4, it overlaps with the frame 9 to cover it. The door 1 is opened and closed by a pivot hinge 8a provided separately, with the vertical edge side of the door bottom as a pivot point. According to the present invention, there is provided a door of a hinged door having a vertical edge on the side of a door , a vertical edge on a side of a door , an upper edge, and a lower edge.
Outside of the frame with the outside surface protruding forward from the wall of the mouth
And the upper edge of the door is higher than the upper edge of the frame.
At the same time, the projecting portion is formed at least at the vertical edge and the upper edge of the door at the door- end side, and the projecting portion extends in the direction in which the door can be seen. When the door is closed, the projecting portion is opened. Even if the peripheral surface of the frame body is deformed due to the interlayer displacement of the building, the door opens.
Since it is characterized in that it is covered with a clearance that allows release , it has the following advantageous effects. (1) Since the door is designed to cover the frame with a predetermined clearance between the door and the peripheral surface of the frame, even if the frame is deformed due to interlayer displacement, the door is normally opened with the same opening force. Can be opened and closed. (2) Since the door covers the opening frame through the protruding piece, there is no linear through-gap which is harmful to the fire prevention function even though it is an imposition door. It has the requirements for fire doors. (3) Since the door covers the opening frame through the projecting portion, the projecting portion closes the gap between the opening and the door, while being an imposition door, ensuring security. Can be. (4) Since the disaster prevention door according to the present invention can be constructed simply by preparing a hanging member and a door, the disaster prevention door of the present application can be installed using an existing frame.
【図面の簡単な説明】
【図１】（ａ）は防災用ドアの概略正面図及び平面図、
（ｂ）は防災用ドアの側面図、（ｃ）は防災用ドアの平
面図である。
【図２】防災用ドアの他の実施例を示し、（ａ）は概略
正面図及び平面図、（ｂ）は側面図、（ｃ）は平面図で
ある。
【符号の説明】
１ 扉２ 戸先側縦縁３ 戸尻側縦縁４ 上縁５ 下縁６ 開
口部９開口部の枠体１１ 突片部Ｃ クリアランスBRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 (a) is a schematic front view and plan view of a disaster prevention door,
(B) is a side view of the door for disaster prevention, and (c) is a plan view of the door for disaster prevention. 2A and 2B show another embodiment of a disaster prevention door, wherein FIG. 2A is a schematic front view and a plan view, FIG. 2B is a side view, and FIG. [Description of Signs] 1 door 2 door-side vertical edge 3 door-side vertical edge 4 upper edge 5 lower edge 6 opening 9 opening frame 11 protrusion piece C clearance
Claims (1)
する開き戸の扉において、戸先側縦縁を開口部の壁面よ
り外側面を前方に突出させた枠体の外側方に延出形成
し、かつ扉の上縁が前記枠体の上縁より高位となるよう
に延出形成すると共に、前記扉の少なくとも戸先側縦縁
及び上縁には扉の見込方向に延出する突片部を形成し、
扉の閉鎖時には前記突片部が開口部の枠体の周面を該枠
体が建物の層間変位により変形しても扉の開放が可能と
なるようなクリアランスを存して包覆するようにしたこ
とを特徴とする防災用ドア。(57) [Claims 1] In a door of a hinged door having a door edge side vertical edge, a door edge side vertical edge, an upper edge, and a lower edge, the door edge side vertical edge is defined as a wall surface of the opening.
Extending outward from the frame with the outer surface protruding forward
And the upper edge of the door is higher than the upper edge of the frame.
At the same time, a projecting piece is formed at least at the door edge side vertical edge and the upper edge of the door so as to extend in the direction in which the door is expected,
When the door is closed, the protruding piece portion covers the peripheral surface of the opening frame.
The door can be opened even if the body deforms due to the interlayer displacement of the building
Disaster prevention door characterized by being covered with a certain clearance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17409196A JP3451520B2 (en) | 1996-06-13 | 1996-06-13 | Disaster prevention door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17409196A JP3451520B2 (en) | 1996-06-13 | 1996-06-13 | Disaster prevention door |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH102165A JPH102165A (en) | 1998-01-06 |
| JP3451520B2 true JP3451520B2 (en) | 2003-09-29 |
Family
ID=15972504
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17409196A Expired - Fee Related JP3451520B2 (en) | 1996-06-13 | 1996-06-13 | Disaster prevention door |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3451520B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018053440A (en) * | 2016-09-26 | 2018-04-05 | 株式会社東京組 | Door structure |
-
1996
- 1996-06-13 JP JP17409196A patent/JP3451520B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018053440A (en) * | 2016-09-26 | 2018-04-05 | 株式会社東京組 | Door structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH102165A (en) | 1998-01-06 |
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