JPH0547266Y2

JPH0547266Y2 -

Info

Publication number: JPH0547266Y2
Application number: JP1986073144U
Authority: JP
Priority date: 1986-05-14
Filing date: 1986-05-14
Publication date: 1993-12-13
Anticipated expiration: 2001-05-14
Also published as: JPS62187087U

Description

【考案の詳細な説明】（産業上の利用分野）この考案は、防火扉のくぐり戸に関するもの
で、詳しくは、通常扉より薄いくぐり戸の下端側
を扉の厚みと同じになるよう後方に張り出して、
両者の下端溝形を同一に揃え重量物である防火扉
の横引運動を円滑に行えるように構成したもので
ある。[Detailed explanation of the invention] (Field of industrial application) This invention relates to a pass-through door for a fire door. Specifically, the lower end of the pass-through door, which is thinner than a normal door, is moved backward so that it is the same thickness as the door. Stick it out,
The lower end groove shapes of both are made the same so that the fire door, which is a heavy object, can be smoothly pulled laterally.

（従来の技術）従来、潜戸の下方でゴム製シール部材つき密閉
部材を手動で昇降させ、床面との隙間から光や音
が洩れないようにした潜戸（実開昭58−137786号
公報）や、くぐり戸下部の親扉部分をなくして通
り抜けを安全にした（実開昭56−65091号公報）
などが提供されたが、前者は扉を横引きする際、
その都度密閉部材を床面より離す煩しさと、防火
扉には不適のゴム製シール部材の装着手段が問題
となり、後者は、扉の厚みより薄いクグリ戸の下
端の溝と親扉の下端の溝が直線上で揃つていない
ため、横引用の案内部材を付設しても円滑な摺動
はできない致命的な難点となつている。(Prior art) Conventionally, a hidden door has a rubber sealing member attached to the bottom of the door that is manually raised and lowered to prevent light and sound from leaking through the gap between the door and the floor (Japanese Utility Model Publication No. 137786/1986). The main door at the bottom of the door was removed to make it safer to pass through (Utility Model Publication No. 56-65091)
etc. were provided, but the former, when pulling the door sideways,
Each time, there were problems with the trouble of separating the sealing member from the floor and the method of attaching the rubber sealing member, which is unsuitable for fire doors. Since the grooves are not aligned in a straight line, smooth sliding cannot be achieved even if a horizontal guide member is attached, which is a fatal drawback.

（考案が解決しようとする問題点）くぐり戸は、防火扉に設けたときは自閉力がな
いと通過により開放された儘では火炎や有毒煙の
進入で危険であり、亦、扉を横引きする場合、く
ぐり戸と扉の下端の溝が直線上で揃つていないと
例えば横引き用案内部材を付設しても正常な摺接
ができないため、防火扉の如き重量物には不適と
なるなど問題点が生じる。(Problem that the invention seeks to solve) When a pass-through door is installed in a fire door, it is dangerous if it does not have self-closing power, allowing flames and toxic smoke to enter once it is opened. When pulling, if the grooves on the lower end of the door and the door are not aligned in a straight line, normal sliding contact will not be possible even if a guide member for horizontal pulling is attached, making it unsuitable for heavy objects such as fire doors. Problems arise, such as:

（考案の目的）この考案は、如上の各問題点を解消し、安全か
つ構造簡単なくぐり戸を防火扉に付設して、市場
に廉価で提供することを究極の目的とする。(Purpose of the invention) The ultimate purpose of this invention is to solve the above-mentioned problems, attach a safe and simple-structured pass-through door to a fire door, and provide it to the market at a low price.

（問題点を解決するための手段）この考案による防火扉のくぐり戸は、自閉用の
弾機つきくぐり戸１の下端側に形成した逆みぞ形
の蟻溝２を、扉Ｄの下縁蟻溝D₁と同一形状にな
るよう後ろ側に張り出して、該くぐり戸１と扉Ｄ
の各蟻溝が直線上で揃うようにしたものである。(Means for Solving the Problem) The fire door of this invention has an inverted groove-shaped dovetail groove 2 formed on the lower end side of the self-closing tunnel door 1 with a bullet, and a dovetail groove 2 formed on the lower edge of the door D. Dovetail D ₁ Extends to the rear so that it has the same shape as D 1, and connects the dovetail door 1 and door D.
The dovetail grooves are aligned on a straight line.

（作用）防火扉を第１，第２図示の矢印方向に動かすと
き、下端側の蟻溝は全幅に亘つてトンネル状で一
直線の通しになつているため、摺接および傾倒防
止用に設けられたローラー部材とは円滑に摺動す
るため、重量物体である防火扉と雖も軽快な前後
進ができる。亦、くぐり戸は室内方向すなわち閉
鎖側に弾機付勢されているため、人や車が第２図
示の仮線側に押し出して通過すれば、その後はオ
ートヒンジによる自閉力によつて緩衝されつつ閉
鎖し防火態勢を保持できる。(Function) When the fire door is moved in the directions of the arrows shown in the first and second figures, the dovetail groove on the lower end side is tunnel-shaped and runs in a straight line over the entire width, so it is provided to prevent sliding contact and tilting. Since the roller member slides smoothly, it can be moved forward and backward with ease even when moving against a heavy fire door. In addition, the tunnel door is biased toward the interior, that is, toward the closing side, so if a person or car passes through it by pushing it toward the tentative line shown in the second figure, it will be buffered by the self-closing force of the auto hinge. It is possible to maintain a fire prevention posture by closing the building while it is being exposed.

（実施例）この考案の実施例を図面によつて説明する。く
ぐり戸１の下部は、第２，第４図示のように扉Ｄ
の下縁蟻溝D₁と同一形状に揃えるため、特に
の字形の蟻溝２となる部分を該くぐり戸の厚みに
より後方に張り出し（膨出）て、扉Ｄの厚みと同
等に揃えている点は、先行技術には無い独特の改
良手段である。(Example) An example of this invention will be described with reference to the drawings. The lower part of the pass door 1 is a door D as shown in the second and fourth illustrations.
In order to align the lower edge dovetail groove D ₁ with the same shape, the part that becomes the letter-shaped dovetail groove 2 is particularly bulged out (bulges) to the rear according to the thickness of the pass-through door, and is made equal to the thickness of the door D. The point is that it is a unique improvement means not found in the prior art.

３は、公知のオートヒンジ（弾機）で、くぐり
戸１を常に室内側の閉鎖方向に付勢しているた
め、人や車の通過後は、緩衝され乍ら自閉して防
火態勢をとることができる。さらに扉Ｄは、くぐ
り戸１と共に下端が逆みぞ形の字状を形成し、
両側の下縁蟻溝D₁とその中間に介在するくぐり
戸１側の蟻溝２とはすべて同一形状で一直線上の
トンネルとなつているため、横引き運動に際し、
例えばローラー付き案内部材G_A，G_B，G_Cなどを
上記蟻溝内に摺接するよう配設しておけば、傾動
による上部吊車のレール脱落によつて生ずる傾倒
事故は防げるうえ、円滑な横引き運動ができる。 3 is a well-known auto-hinge that always biases the door 1 in the direction of closing indoors, so after a person or car passes by, it closes itself while being buffered and provides fire protection. You can take it. Furthermore, the lower end of the door D forms an inverted groove shape together with the pass door 1,
The lower edge dovetail grooves D ₁ on both sides and the dovetail grooves 2 on the side of the pass door 1 interposed between them are all of the same shape and form tunnels in a straight line, so during horizontal pulling movement,
For example, if guide members G _A , G _B , G _C etc. with rollers are arranged so as to slide in the dovetail grooves, it is possible to prevent a tilting accident caused by the rail of the upper suspension wheel falling off due to tilting, and also to ensure smooth lateral movement. Can do pulling movements.

（考案の効果）この考案によれば、扉の下端溝とくぐり戸の下
端溝を同形に揃えた独特の構造により、著しい傾
動が生じて上部の吊車がレールより脱落して起き
る傾倒事故は回避できるうえ、くぐり戸は常に閉
鎖側に付勢されているので防火態勢が万全とな
る。(Effects of the invention) According to this invention, due to the unique structure in which the lower end groove of the door and the lower end groove of the pass-through door are aligned in the same shape, it is possible to avoid tilting accidents that occur when the upper hanging wheel falls off the rail due to significant tilting. Not only that, but the door is always energized to close, ensuring complete fire protection.

そして、くぐり戸の下端張り出しは、単に扉側
の溝形材と同じ物を使用すればよいので、製造コ
ストも極めて廉価である。 Furthermore, since the lower end of the door can be made of the same material as the channel material on the door side, the manufacturing cost is extremely low.

[Brief explanation of the drawing]

第１図は全体の概略使用状態図、第２図は同上
の一部を欠切した斜視図、第３図は扉の横断面
図、第４図は第１図のＡ−Ａ視断面図、第５図は
第１図のＢ−Ｂ視断面図である。図において、１はくぐり戸、２は蟻溝、Ｄは
扉、D₁は下縁蟻溝である。なお、各図中同一符
号は同一または相当部分を示す。 Fig. 1 is a schematic diagram of the entire state of use, Fig. 2 is a partially cutaway perspective view of the same as above, Fig. 3 is a cross-sectional view of the door, and Fig. 4 is a sectional view taken along line A-A in Fig. 1. , FIG. 5 is a sectional view taken along the line BB in FIG. 1. In the figure, 1 is a pass-through door, 2 is a dovetail groove, D is a door, and _D1 is a lower edge dovetail groove. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims

[Scope of utility model registration request]

An inverted groove-shaped dovetail groove 2 formed on the lower end side of the self-closing bullet door 1 is extended to the rear side so as to have the same shape as the lower edge dovetail groove D ₁ of the door D. The dovetail grooves of the door D and the dovetail grooves of the door D are arranged in a straight line.