JP7197403B2 - fire door - Google Patents

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JP7197403B2
JP7197403B2 JP2019037185A JP2019037185A JP7197403B2 JP 7197403 B2 JP7197403 B2 JP 7197403B2 JP 2019037185 A JP2019037185 A JP 2019037185A JP 2019037185 A JP2019037185 A JP 2019037185A JP 7197403 B2 JP7197403 B2 JP 7197403B2
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indoor
outdoor
door
aggregate
piece
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JP2020139357A (en
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聡志 木村
靖幸 小林
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YKK AP Inc
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Description

本発明は、建物の玄関ドア、勝手口ドアなどに用いられる防火ドアに関する。 BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire door used as an entrance door, back door, etc. of a building.

従来、枠体にヒンジ部を介して扉体を開閉可能に取り付けた扉が知られている(特許文献1参照)。扉体は、スチール製の扉枠(力骨)と、扉枠を室外側から覆って配置された室外側表面材と、扉枠を室内側から覆って配置された室内側表面材とを備えている。室外側表面材および室内側表面材の縦縁部は見込み方向に折曲され、固定具によって扉枠の見込み面に固定されている。 2. Description of the Related Art Conventionally, a door is known in which a door is attached to a frame through a hinge so that it can be opened and closed (see Patent Literature 1). The door body consists of a steel door frame (strut), an outdoor-side surface material that covers the door frame from the outdoor side, and an indoor-side surface material that covers the door frame from the indoor side. ing. The longitudinal edges of the exterior and interior facings are bent in the prospective direction and secured to the prospective surface of the door frame by fasteners.

特開2016-217004号公報JP 2016-217004 A

例えば特許文献1に記載の扉において、扉体の吊元側における吊元側見込み面に熱膨張耐火材を設置し、火災時に熱膨張する熱膨張耐火材によって吊元側見込み面と枠体の見込み面との間を塞いで防火性を向上させることが考えられる。
しかし、火災時においては扉体の室外側表面材および室内側表面材の双方とも左右方向に熱伸びしようとするが、室外側表面材および室内側表面材の双方の縦縁部が固定具によって扉枠の見込み面に固定されているので、左右方向の熱伸びが抑制されて室外側表面材および室内側表面材に歪みが生じ、見込み方向の熱反り変形が助長されるおそれがある。このように熱反り変形が助長されると、吊元側見込み面および枠体の見込み面の間を熱膨張耐火材によって塞いでも前記熱反り変形によって室内外の貫通孔が形成されるおそれがある。
For example, in the door described in Patent Document 1, a thermal expansion refractory material is installed on the suspension side projection surface on the suspension side of the door body, and the thermal expansion refractory material that thermally expands in the event of a fire is used to form the suspension side projection surface and the frame body. It is conceivable to improve the fire resistance by closing the space between the prospective surface.
However, in the event of a fire, both the outdoor surface material and the indoor surface material of the door will try to thermally expand in the horizontal direction, but the vertical edges of both the outdoor surface material and the indoor surface material will be stretched by the fixtures. Since it is fixed to the prospective surface of the door frame, thermal expansion in the left-right direction is suppressed, distortion occurs in the outdoor-side surface material and the indoor-side surface material, and there is a risk of promoting thermal warp deformation in the prospective direction. If the thermal warp deformation is accelerated in this way, there is a risk that the thermal warp deformation will form through-holes inside and outside the room even if the space between the probable surface on the suspension side and the probable surface of the frame is blocked by the thermal expansion refractory material. .

本発明は、防火性を向上できる防火ドアを提供することを目的とする。 SUMMARY OF THE INVENTION An object of the present invention is to provide a fire door with improved fire protection.

本発明の防火ドアは、建具枠と、前記建具枠の吊元側に開閉可能に取り付けられた扉体とを備え、前記扉体は、芯材と、前記芯材に対して屋外側に設置された屋外表面材と、前記芯材に対して屋内側に設置された屋内表面材とを備え、前記屋外表面材は、前記扉体の屋外面を構成する屋外表面部と、前記屋外表面部の吊元側における縦縁から屋内側に折曲された屋外見込み片部とを有し、前記屋内表面材は、前記扉体の屋内面を構成する屋内表面部と、前記屋内表面部の吊元側における縦縁から屋外側に折曲された屋内見込み片部とを有し、前記芯材と前記屋外見込み片部および前記屋内見込み片部との間には骨材が設置され、前記屋外見込み片部は前記骨材に対して固定され、前記屋内見込み片部は前記骨材にして非固定とされ、前記屋内見込み片部には、前記建具枠の吊元側見込み面と対向する熱膨張耐火材が設置されていることを特徴とする。 A fire door according to the present invention includes a fitting frame and a door body attached to a hanger side of the fitting frame so as to be openable and closable. and an indoor surface material installed on the indoor side with respect to the core material, wherein the outdoor surface material includes an outdoor surface portion constituting the outdoor surface of the door body, and the outdoor surface portion The indoor surface member has an outdoor prospective piece portion bent toward the indoor side from the vertical edge on the hanging side of the door body, and the indoor surface member includes an indoor surface portion that constitutes the indoor surface of the door body and a hanging portion of the indoor surface portion. and an indoor prospective piece portion that is bent from the longitudinal edge on the base side to the outdoor side, and aggregates are installed between the core material and the outdoor prospective piece portion and the indoor prospective piece portion, and the outdoor The prospective piece portion is fixed to the aggregate, the indoor prospective piece portion is unfixed to the aggregate, and the indoor prospective piece portion has a heat source facing the prospective surface on the suspension side of the fitting frame. It is characterized by installation of expansive refractory material.

本発明によれば、防火性を向上できる防火ドアを提供することができる。 ADVANTAGE OF THE INVENTION According to this invention, the fire door which can improve a fireproof property can be provided.

本発明の実施形態に係る玄関ドアを示す外観姿図。BRIEF DESCRIPTION OF THE DRAWINGS The external appearance figure which shows the entrance door which concerns on embodiment of this invention. 図1に示すII-II線に沿った断面図。Sectional drawing along the II-II line shown in FIG. 前記実施形態に係る玄関ドアの要部の作用を示す横断面図。FIG. 4 is a cross-sectional view showing the action of the main part of the entrance door according to the embodiment;

[本実施形態の構成]
以下、本発明の実施形態を図面に基づいて説明する。
図1および図2において、本実施形態に係る防火ドアとしての玄関ドア1は、片開き式の開き戸であり、建物の外壁開口部に固定された建具枠であるドア枠2と、ドア枠2に開閉可能に取り付けられたフラッシュ構造の扉体3(フラッシュパネル)とを備えている。
以下の説明において、玄関ドア1の左右方向をX軸方向とし、玄関ドア1の上下方向をY軸方向とし、玄関ドア1の見込み方向(屋内外方向)をZ軸方向とする。X,Y,Z軸方向は互いに直交している。
[Configuration of this embodiment]
BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings.
In FIGS. 1 and 2, an entrance door 1 as a fire door according to the present embodiment is a one-way hinged door, and includes a door frame 2 which is a fitting frame fixed to an outer wall opening of a building. and a door body 3 (flash panel) having a flush structure attached to the door so as to be openable and closable.
In the following description, the horizontal direction of the entrance door 1 is defined as the X-axis direction, the vertical direction of the entrance door 1 is defined as the Y-axis direction, and the viewing direction (indoor/outdoor direction) of the entrance door 1 is defined as the Z-axis direction. The X-, Y-, and Z-axis directions are orthogonal to each other.

ドア枠2は、上枠21、下枠22および左右の縦枠23,24を備えており、図1において右側に示す縦枠23が吊元側縦枠であり、図1において左側に示す縦枠24が戸先側縦枠である。縦枠23には旗丁番などによって構成されるヒンジ4が取り付けられており、ヒンジ4に扉体3が取り付けられている。上枠21および縦枠24は、アルミ押出形材によって形成された屋外形材および屋内形材をウレタン樹脂等の断熱材によって連結してそれぞれ構成されている(図示省略)。下枠22はアルミ押出形材によって形成されている。
縦枠23(吊元側縦枠)は、図2に示すように、アルミ押出形材によって形成された屋外形材25および屋内形材26と、屋外形材25および屋内形材26を連結したウレタン樹脂等の断熱材27とによって構成されている。
屋外形材25は、ヒンジ4が取り付けられた吊元側見込み面251を有して断面略矩形状に形成されている。屋内形材26はその見込み面から戸先側に延出した戸当り部28を有している。戸当り部28には、扉体3の屋内面が当接する可燃性の戸当り材6が係合した係合溝281が形成されており、係合溝281の底面にはY軸方向に延びたシート状の熱膨張耐火材7が設置されている。
The door frame 2 includes an upper frame 21, a lower frame 22, and left and right vertical frames 23 and 24. The vertical frame 23 shown on the right side in FIG. A frame 24 is a vertical frame on the side of the door. A hinge 4 composed of a flag hinge or the like is attached to the vertical frame 23 , and the door body 3 is attached to the hinge 4 . The upper frame 21 and the vertical frame 24 are respectively constructed by connecting outdoor and indoor shapes made of extruded aluminum with a heat insulating material such as urethane resin (not shown). The lower frame 22 is made of extruded aluminum.
As shown in FIG. 2, the vertical frame 23 (suspension-side vertical frame) connects an outdoor shape 25 and an indoor shape 26 formed of extruded aluminum, and an outdoor shape 25 and an indoor shape 26. It is composed of a heat insulating material 27 such as urethane resin.
The outdoor shape member 25 is formed to have a substantially rectangular cross-section with a protruding side surface 251 to which the hinge 4 is attached. The indoor shape member 26 has a door stop portion 28 extending from its prospective surface toward the door tip. The doorstop portion 28 is formed with an engagement groove 281 in which the combustible doorstop material 6 with which the indoor surface of the door 3 abuts is engaged. A sheet-like thermal expansion refractory material 7 is installed.

扉体3は、図1に示すように縦長矩形状に形成されている。扉体3は、図2に示すように、芯材31と、芯材31に対して屋外側に配置された金属製の屋外表面材32と、芯材31に対して屋内側に配置された屋内表面材33と、屋外表面材32および屋内表面材の間に配置された骨材34,35とを備えている。また、扉体3には、Y軸方向に延びた開口部36が形成され、パネル保持枠37およびパネル保持枠37に保持された採光用のパネル38が開口部36に設置されている。開口部36は、芯材31、屋外表面材32および屋内表面材33を屋内外に貫通して形成されている。
芯材31は、EPS(発泡ビーズ法ポリスチレン)製の断熱材で構成されている。なお、芯材31は、フェノール樹脂系の断熱材を用いてもよいし、ハニカム材(水酸化アルミハニカム、セラミックハニカム、ペーパーハニカム)、フォーム材(イソシアヌレートフォーム、ウレタンフォーム、フェノール樹脂フォーム)等の断熱材が使用されてもよい。
屋外表面材32は、扉体3の屋外面を構成する屋外表面部321と、屋外表面部321の吊元側における縦縁から屋内側に向けてZ軸方向に折曲された屋外見込み片部322とを有している。また、屋外表面材32は、図示しないが、戸先側における縦縁から屋内側に向けてZ軸方向に折曲された屋外見込み片部を有している。
屋内表面材33は、扉体3の屋内面を構成する屋内表面部331と、屋内表面部331の吊元側における縦縁から屋外側に向けてZ軸方向に折曲された屋内見込み片部332とを有しており、屋内見込み片部332には、縦枠23の吊元側見込み面251に間隔を隔てて対向する熱膨張耐火材8が貼り付けられている。熱膨張耐火材8は、扉体3の下側部分に設置されるが、扉体3のY軸方向全長に設置されてもよい。また、屋内表面材33は、図示しないが、戸先側における縦縁から屋外側に向けてZ軸方向に折曲された屋内見込み片部を有している。なお、屋内表面材33は、骨材34,35などにネジ固定されていない(非固定)が骨材35とパネル保持枠37との間に挟み込まれたり、芯材31に接着されたりしてその位置が保たれている。また、戸先側の屋外見込み片部および屋内見込み片部は、扉体3の戸先側に装着された金属製の戸先エッジ材によって覆われている。
骨材34は、スチール等の金属骨材341と、硬質の樹脂骨材342とを備えた複合骨材によって断面略コ字形状に構成されており、扉体3の周囲に沿って四周枠組みされている。なお、戸先側でY軸方向に沿った骨材34には、戸先側の縦枠24に設けられた錠受けに係止されるラッチボルトやデッドボルト等を備える錠ケースが取り付けられている(図示省略)。
骨材35は、断面略コ字状の金属骨材351と、金属骨材351の屋外端部および屋内端部に係合した硬質の樹脂材352とによって構成されており、パネル保持枠37および芯材31の間に配置されている。
The door 3 is formed in a vertically long rectangular shape as shown in FIG. The door 3, as shown in FIG. It comprises an interior surface 33 and aggregates 34, 35 disposed between the exterior surface 32 and the interior surface. An opening 36 extending in the Y-axis direction is formed in the door 3 , and a panel holding frame 37 and a lighting panel 38 held by the panel holding frame 37 are installed in the opening 36 . The opening 36 is formed by penetrating the core material 31, the outdoor surface material 32 and the indoor surface material 33 indoors and outdoors.
The core material 31 is composed of a heat insulating material made of EPS (expanded bead polystyrene). For the core material 31, a phenolic resin-based heat insulating material may be used, a honeycomb material (aluminum hydroxide honeycomb, ceramic honeycomb, paper honeycomb), a foam material (isocyanurate foam, urethane foam, phenolic resin foam), or the like. of insulation may be used.
The outdoor surface material 32 includes an outdoor surface portion 321 that constitutes the outdoor surface of the door 3, and an outdoor projection piece that is bent in the Z-axis direction from the vertical edge on the suspension side of the outdoor surface portion 321 toward the indoor side. 322. In addition, although not shown, the outdoor surface member 32 has an outdoor prospective piece portion that is bent in the Z-axis direction from the vertical edge on the side of the door toward the indoor side.
The indoor surface material 33 includes an indoor surface portion 331 that constitutes the indoor surface of the door 3, and an indoor projection piece that is bent in the Z-axis direction from the vertical edge on the suspension side of the indoor surface portion 331 toward the outdoor side. 332 , and the thermally expandable fireproof material 8 is attached to the indoor prospective piece 332 so as to face the suspension-side prospective surface 251 of the vertical frame 23 with a gap therebetween. The thermal expansion refractory material 8 is installed in the lower portion of the door 3, but may be installed over the entire length of the door 3 in the Y-axis direction. In addition, the indoor surface material 33 has an indoor projection piece (not shown) that is bent in the Z-axis direction from the vertical edge on the side of the door toward the outside. The indoor surface material 33 is not screwed (non-fixed) to the aggregates 34 and 35, but is sandwiched between the aggregates 35 and the panel holding frame 37 or adhered to the core material 31. its position is preserved. Further, the outdoor projection piece and the indoor projection piece on the door tip side are covered with a metal door tip edge member attached to the door tip side of the door body 3. - 特許庁
The aggregate 34 is composed of a composite aggregate including a metal aggregate 341 such as steel and a hard resin aggregate 342, and has a substantially U-shaped cross section. ing. A lock case provided with a latch bolt, a dead bolt, etc. to be engaged with a lock receiver provided on the vertical frame 24 on the door tip side is attached to the aggregate 34 along the Y-axis direction on the door tip side. (illustration omitted).
The aggregate 35 is composed of a metal aggregate 351 having a substantially U-shaped cross section and a hard resin material 352 engaged with the outdoor end and the indoor end of the metal aggregate 351. It is arranged between the core members 31 .

前述した扉体3において、屋外表面材32の屋外表面部321はパネル保持枠37にネジ止めされている。屋外見込み片部322は骨材34に固定具であるリベット9によってリベット止めされている。ここで、リベット9は、図2に示す保持片10を屋外見込み片部322とともに骨材34に共締め固定している。保持片10は、ピース材であって屋外見込み片部322から屋内側に延出しており、屋内見込み片部332との間で熱膨張耐火材8を挟持されている。
屋内表面材33の屋内表面部331は骨材35およびパネル保持枠37によって挟持されている。屋内見込み片部332は骨材34に沿って配置されているが、リベット9によっては骨材34に固定されていない非固定の状態とされている。なお、屋内見込み片部332は、リベット9などによって骨材34に機械的に固定されていないが、火災時における屋内表面材33のX軸方向の熱伸び変形を許容可能な範囲で骨材34に貼り付けられていてもよい。
In the door 3 described above, the outdoor surface portion 321 of the outdoor surface member 32 is screwed to the panel holding frame 37 . The outdoor prospective piece 322 is riveted to the aggregate 34 with rivets 9 as fasteners. Here, the rivet 9 fastens together the holding piece 10 shown in FIG. The holding piece 10 is a piece material and extends from the outdoor prospective piece 322 to the indoor side, and the thermal expansion refractory material 8 is sandwiched between it and the indoor prospective piece 332 .
An indoor surface portion 331 of the indoor surface material 33 is held between the aggregate 35 and the panel holding frame 37 . The indoor prospective piece 332 is arranged along the aggregate 34, but is not fixed to the aggregate 34 by the rivets 9 and is in an unfixed state. Although the indoor projection piece 332 is not mechanically fixed to the aggregate 34 by the rivets 9 or the like, the aggregate 34 is attached to the aggregate 34 within a range that allows the thermal expansion deformation of the indoor surface material 33 in the X-axis direction during a fire. may be attached to the

以下、本実施形態に係る玄関ドア1の要部における作用について説明する。
屋外火災時、熱膨張耐火材8が熱せられて縦枠23の吊元側見込み面251に向かって熱膨張し、縦枠23および屋内見込み片部332の間を塞ぐ。また、熱膨張耐火材7も熱せられて戸当り部28から屋外側に向かってZ軸方向に熱膨張し、縦枠23の断熱材27を覆いつつ熱膨張耐火材8に当たる。なお、戸当り材6は焼失するか、熱膨張する熱膨張耐火材7に押されて脱落する。
また、屋外火災によって屋外表面材32が熱せられてX軸方向に熱伸びしようとするが、パネル保持枠37および骨材34に機械的に固定されているので、この熱伸びが抑制され、Y軸方向における熱反り変形が助長される。一方、屋内表面材33は、骨材34にリベット9などによって固定されていないので、骨材34の位置ズレの影響を受けずに図3に示すように所定位置に留まる。また、屋外表面材32の熱反り変形によって骨材35およびパネル保持枠37が位置ズレするが、屋内表面材33は所定位置に留まるので、屋内表面部331が骨材35およびパネル保持枠37の間から外れる。
屋外火災によって芯材31が発火すると、骨材34および屋内見込み片部332の隙間から縦枠23の吊元側見込み面251および扉体3の吊元側における見込み面の間に通じる経路11を火炎が通って吊元側見込み面251および扉体3の吊元側における見込み面の間に入り込む。このとき、屋内見込み片部332は所定位置を維持しており、この状態で屋内見込み片部332と吊元側見込み面251との間が熱膨張耐火材8によって適切に塞がれているので、ここから屋内側に火炎が入り込むことを防いでいる。
なお、屋外火災によるパネル保持枠37の変形によって当該パネル保持枠37の各所にも隙間が形成されるが、これらの隙間は図示しない熱膨張耐火材の熱膨張によって塞がれる。このため、パネル保持枠37における前記隙間や、パネル保持枠37および屋内表面材33の間などから屋内側に火炎が入り込むことは、前記熱膨張耐火材によって防がれる。
The operation of the main part of the entrance door 1 according to this embodiment will be described below.
During an outdoor fire, the thermal expansion refractory material 8 is heated and thermally expands toward the suspension side protruding surface 251 of the vertical frame 23 to block the space between the vertical frame 23 and the indoor protruding piece 332. - 特許庁The heat-expandable fire-resistant material 7 is also heated and thermally expands in the Z-axis direction from the doorstop 28 toward the outside, and hits the heat-expandable fire-resistant material 8 while covering the heat insulating material 27 of the vertical frame 23 . In addition, the door stop material 6 is destroyed by fire or falls off by being pushed by the thermal expansion refractory material 7 which thermally expands.
In addition, although the outdoor surface material 32 is heated by an outdoor fire and tries to thermally expand in the X-axis direction, this thermal expansion is suppressed because it is mechanically fixed to the panel holding frame 37 and the aggregate 34, and the Y Thermal warpage deformation in the axial direction is encouraged. On the other hand, since the indoor surface material 33 is not fixed to the aggregates 34 by the rivets 9 or the like, it stays in place as shown in FIG. Further, although the aggregate 35 and the panel holding frame 37 are displaced due to thermal warp deformation of the outdoor surface material 32 , the indoor surface material 33 remains in a predetermined position, so that the indoor surface portion 331 of the aggregate 35 and the panel holding frame 37 does not move. get out of the way.
When the core material 31 ignites due to an outdoor fire, a path 11 is formed from the gap between the aggregate 34 and the indoor projection piece portion 332 to the projection side projection surface 251 of the vertical frame 23 and the projection surface of the door body 3 on the suspension side. The flame passes through and enters between the projected surface 251 on the suspension side and the projected surface on the suspension side of the door body 3 . At this time, the indoor prospective piece 332 is maintained at a predetermined position, and in this state, the space between the indoor prospective piece 332 and the hanger-side prospective surface 251 is properly blocked by the thermal expansion refractory material 8. , It prevents the flame from entering the indoor side from here.
Deformation of the panel holding frame 37 due to an outdoor fire causes gaps in various parts of the panel holding frame 37, but these gaps are closed by thermal expansion of the thermal expansion fireproof material (not shown). Therefore, the thermally expandable refractory material prevents flames from entering the room through the gaps in the panel holding frame 37 or between the panel holding frame 37 and the indoor surface material 33 .

[変形例]
前記実施形態では、扉体3に開口部36を設けてパネル保持枠37およびパネル38を設置しているが、開口部36の構成を省略してもよい。
前記実施形態では、屋内見込み片部332との間で熱膨張耐火材8を挟持する保持片10を備えているが、これがなくても熱膨張耐火材8が剥がれ落ちたりしない程度の貼付強度がある場合には、保持片10の構成を省略してもよい。
前記実施形態では、戸当り部28に熱膨張耐火材7を設置して防火性を向上させているが、熱膨張耐火材7を設置しなくても十分に防火可能である場合には、この構成を省略してもよい。
前記実施形態では、上枠21および縦枠23,24は、屋外形材25および屋内形材26を断熱材27で連結した断熱形材として構成されているが、これに限らず、例えばアルミ押出形材によって形成されていてもよい。
前記実施形態では、骨材34は金属骨材341および樹脂骨材342によって構成され、骨材35は金属骨材351および樹脂材352によって構成されているが、全体が金属骨材によって構成されていてもよい。
前記実施形態では、玄関ドア1を防火ドアとして説明したが、これに限らず、勝手口ドアなどの各種のドアであってもよい。
[Modification]
In the above-described embodiment, the opening 36 is provided in the door 3 and the panel holding frame 37 and the panel 38 are installed, but the configuration of the opening 36 may be omitted.
In the above-described embodiment, the holding piece 10 that sandwiches the thermal expansion refractory material 8 between itself and the indoor projection piece portion 332 is provided. In some cases, the configuration of the holding piece 10 may be omitted.
In the above-described embodiment, the thermal expansion fireproof material 7 is installed in the doorstop 28 to improve the fire resistance. Configuration may be omitted.
In the above-described embodiment, the upper frame 21 and the vertical frames 23, 24 are configured as heat-insulating sections in which the outdoor section 25 and the indoor section 26 are connected by the heat-insulating material 27. It may be formed by a profile.
In the above-described embodiment, the aggregate 34 is composed of the metal aggregate 341 and the resin aggregate 342, and the aggregate 35 is composed of the metal aggregate 351 and the resin material 352, but the whole is composed of the metal aggregate. may
Although the entrance door 1 has been described as a fire door in the above embodiment, it is not limited to this, and may be various doors such as a back door.

[本発明のまとめ]
本発明の防火ドアは、建具枠と、前記建具枠の吊元側に開閉可能に取り付けられた扉体とを備え、前記扉体は、芯材と、前記芯材に対して屋外側に設置された屋外表面材と、前記芯材に対して屋内側に設置された屋内表面材とを備え、前記屋外表面材は、前記扉体の屋外面を構成する屋外表面部と、前記屋外表面部の吊元側における縦縁から屋内側に折曲された屋外見込み片部とを有し、前記屋内表面材は、前記扉体の屋内面を構成する屋内表面部と、前記屋内表面部の吊元側における縦縁から屋外側に折曲された屋内見込み片部とを有し、前記芯材と前記屋外見込み片部および前記屋内見込み片部との間には骨材が設置され、前記屋外見込み片部は前記骨材に対して固定され、前記屋内見込み片部は前記骨材にして非固定とされ、前記屋内見込み片部には、前記建具枠の吊元側見込み面と対向する熱膨張耐火材が設置されていることを特徴とする。
本発明の防火ドアによれば、屋内見込み片部が骨材に機械拘束されないので、火災時に屋内表面材が熱せられることによる左右方向の熱伸びを抑制することなく許容でき、屋内表面材が見込み方向の熱反り変形が助長されるおそれを低減できる。このため、熱膨張耐火材によって屋内見込み片部と建具枠の見込み面との間を塞いだ状態を適切に保つことができる。
また、火災時の熱によって各部材が変形、焼失して、骨材と屋内表面材との間に隙間が形成されると、この隙間を火炎が通って扉体の吊元側見込み面と建具枠の見込み面との間に入り込む経路が形成されるおそれがあるが、熱反り変形が小さい屋内見込み片部および建具枠の間が熱膨張耐火材によって塞がれているので、吊元側における扉体および建具枠の間から屋内側に火炎が入り込むことを防ぐことができる。
更に、熱膨張耐火材を屋内見込み片部に設置することで、火災時に吊元側における扉体および建具枠の間を適切に塞ぐことができるので、熱膨張耐火材を屋内見込み片部から屋外見込み片部にわたって設置する必要がなく、熱膨張耐火材を減らしてコスト削減できる。
加えて、熱膨張耐火材を屋外見込み片部ではなく屋内見込み片部に設置するので、熱膨張耐火材を屋外側から視認しづらい位置に配置でき、熱膨張耐火材の設置によって外観意匠を損なうおそれを低減できる。
[Summary of the present invention]
A fire door according to the present invention includes a fitting frame and a door body attached to a hanger side of the fitting frame so as to be openable and closable. and an indoor surface material installed on the indoor side with respect to the core material, wherein the outdoor surface material includes an outdoor surface portion constituting the outdoor surface of the door body, and the outdoor surface portion The indoor surface member has an outdoor prospective piece portion bent toward the indoor side from the vertical edge on the hanging side of the door body, and the indoor surface member includes an indoor surface portion that constitutes the indoor surface of the door body and a hanging portion of the indoor surface portion. and an indoor prospective piece portion that is bent from the longitudinal edge on the base side to the outdoor side, and aggregates are installed between the core material and the outdoor prospective piece portion and the indoor prospective piece portion, and the outdoor The prospective piece portion is fixed to the aggregate, the indoor prospective piece portion is unfixed to the aggregate, and the indoor prospective piece portion has a heat source facing the prospective surface on the suspension side of the fitting frame. It is characterized by installation of expansive refractory material.
According to the fire door of the present invention, since the indoor projection piece is not mechanically restrained by the aggregate, the thermal expansion in the lateral direction due to the heating of the indoor surface material in the event of a fire can be tolerated without being suppressed, and the indoor surface material can be prevented from It is possible to reduce the risk of promotion of directional thermal warp deformation. For this reason, it is possible to appropriately maintain a state in which the space between the indoor prospective piece and the prospective surface of the fitting frame is blocked by the thermal expansion refractory material.
In addition, when each member is deformed and burnt out by the heat of a fire, and a gap is formed between the aggregate and the indoor surface material, the flame passes through this gap, There is a risk that a path may be formed between the projection surface of the frame, but since the space between the indoor projection piece, which has little thermal warping deformation, and the fitting frame is blocked by thermal expansion refractory material, It is possible to prevent flames from entering the indoor side from between the door body and the fitting frame.
Furthermore, by installing the thermal expansion fireproof material in the indoor projection part, it is possible to properly block the gap between the door body and the fitting frame on the hanging side in the event of a fire. There is no need to install over the prospective piece, reducing thermal expansion refractories and reducing costs.
In addition, since the thermal expansion fireproof material is installed not on the outdoor projection part but on the indoor projection part, the thermal expansion fireproof material can be placed in a position that is difficult to see from the outside, and the installation of the thermal expansion fireproof material impairs the exterior design. It can reduce fear.

本発明の防火ドアでは、前記屋外見込み片部とともに前記骨材に固定具によって固定される保持片を備え、前記保持片は、前記屋内見込み片部との間に熱膨張耐火材を挟む配置とされていてもよい。
このような構成によれば、熱膨張耐火材が屋内見込み片部から脱落することを保持片によって抑制でき、また、屋外見込み片部を骨材に固定する固定具を利用して保持片を固定するので、固定具を増やすことなくコストを低く抑えることができる。
In the fire door of the present invention, a holding piece fixed to the aggregate by a fastener is provided together with the outdoor prospective piece, and the holding piece and the indoor prospective piece are arranged to sandwich a thermally expandable refractory material. may have been
According to such a configuration, the holding piece can prevent the thermal expansion refractory material from falling off from the indoor prospective piece, and the holding piece is fixed by using a fixture for fixing the outdoor prospective piece to the aggregate. Therefore, the cost can be kept low without increasing the number of fixtures.

本発明の防火ドアでは、前記建具枠は、上枠、下枠、戸先側縦枠および吊元側縦枠を備え、前記吊元側縦枠には、戸先側に向かって延出した戸当り部が形成され、前記戸当り部には、屋外側に開口した係合溝が形成され、前記係合溝には、前記扉体の屋内面に当接する戸当り材が係合していると共に、前記開口から屋外側に熱膨張する熱膨張耐火材が設置されていてもよい。
このような構成によれば、火災時に、屋内見込み片部に設置された熱膨張耐火材が熱膨張して屋内見込み片部および吊元側縦枠の間を塞ぐ一方、係合溝に設置された熱膨張耐火材が熱膨張して、屋内見込み片部および吊元側縦枠の間を塞ぐ熱膨張耐火材に当たることで、吊元側における扉体および吊元側縦枠の間をより安定して塞ぐことができる。
In the fire door of the present invention, the fitting frame includes an upper frame, a lower frame, a door tip side vertical frame and a suspension side vertical frame, and the suspension side vertical frame extends toward the door tip side. A door stop portion is formed, the door stop portion is formed with an engagement groove that opens to the outside, and the engagement groove is engaged with a door stop material that abuts on the indoor surface of the door body. In addition, a thermal expansion fireproof material that thermally expands from the opening to the outdoor side may be installed.
According to such a configuration, in the event of a fire, the thermal expansion refractory material installed in the indoor projection piece thermally expands to block the space between the indoor projection piece and the suspension side vertical frame, while it is installed in the engagement groove. The thermal expansion refractory material expands thermally and hits the thermal expansion refractory material blocking the gap between the indoor projection piece and the vertical frame on the suspension side, making the gap between the door body and the vertical frame on the suspension side more stable. can be blocked by

1…玄関ドア、10…保持片、2…ドア枠、251…吊元側見込み面、28…戸当り部、281…係合溝、3…扉体、31…芯材、32…屋外表面材、321…屋外表面部、322…屋外見込み片部、33…屋内表面材、331…屋内表面部、332…屋内見込み片部、34,35…骨材、6…戸当り材、7,8…熱膨張耐火材。 DESCRIPTION OF SYMBOLS 1... Entrance door 10... Holding piece 2... Door frame 251... Suspension side projection surface 28... Door stop part 281... Engagement groove 3... Door body 31... Core material 32... Outdoor surface material , 321... Outdoor surface part, 322... Outdoor prospective piece part, 33... Indoor surface material, 331... Indoor surface part, 332... Indoor prospective piece part, 34, 35... Aggregate, 6... Door stop material, 7, 8... Thermal expansion refractory material.

Claims (3)

建具枠と、前記建具枠の吊元側に開閉可能に取り付けられた扉体とを備え、
前記扉体は、芯材と、前記芯材に対して屋外側に設置された屋外表面材と、前記芯材に接着され且つ当該芯材に対して屋内側に設置された屋内表面材とを備え、
前記屋外表面材は、前記扉体の屋外面を構成する屋外表面部と、前記屋外表面部の吊元側における縦縁から屋内側に折曲された屋外見込み片部とを有し、
前記屋内表面材は、前記扉体の屋内面を構成する屋内表面部と、前記屋内表面部の吊元側における縦縁から屋外側に折曲された屋内見込み片部とを有し、
前記芯材と前記屋外見込み片部および前記屋内見込み片部との間には吊元側の骨材が設置され、
前記芯材よりも戸先側には戸先側の骨材が配置され、
前記屋外表面材では、前記屋外見込み片部前記吊元側の骨材に対して固定具で固定され、
前記屋内表面材は前記吊元側の骨材および前記戸先側の骨材して機械的に非固定とされ、
前記屋内見込み片部自体には、前記建具枠の吊元側見込み面と対向する熱膨張耐火材が設置されている
ことを特徴とする防火ドア。
A fitting frame, and a door attached to the hanger side of the fitting frame so as to be able to be opened and closed,
The door body includes a core material, an outdoor surface material installed on the outdoor side with respect to the core material, and an indoor surface material adhered to the core material and installed on the indoor side with respect to the core material. prepared,
The outdoor surface member has an outdoor surface portion that constitutes the outdoor surface of the door body, and an outdoor projection piece that is bent toward the indoor side from a vertical edge on the hanger side of the outdoor surface portion,
The indoor surface member has an indoor surface portion that constitutes the indoor surface of the door body, and an indoor projection piece portion that is bent outward from a vertical edge on the hanger side of the indoor surface portion,
Suspension side aggregates are installed between the core material and the outdoor prospective piece portion and the indoor prospective piece portion,
An aggregate on the door tip side is arranged on the door tip side of the core material,
In the outdoor surface material, the outdoor projection part is fixed to the aggregate on the suspension side with a fixture ,
The indoor surface material is mechanically unfixed to the suspension- side aggregate and the door-end-side aggregate ,
A fire door, wherein a thermally expandable fire-resistant material is installed on the indoor prospective piece itself so as to face the prospective surface on the suspension side of the fitting frame.
建具枠と、前記建具枠の吊元側に開閉可能に取り付けられた扉体とを備え、
前記扉体は、芯材と、前記芯材に対して屋外側に設置された屋外表面材と、前記芯材に対して屋内側に設置された屋内表面材とを備え、
前記屋外表面材は、前記扉体の屋外面を構成する屋外表面部と、前記屋外表面部の吊元側における縦縁から屋内側に折曲された屋外見込み片部とを有し、
前記屋内表面材は、前記扉体の屋内面を構成する屋内表面部と、前記屋内表面部の吊元側における縦縁から屋外側に折曲された屋内見込み片部とを有し、
前記芯材と前記屋外見込み片部および前記屋内見込み片部との間には骨材が設置され、
前記屋外見込み片部は前記骨材に対して固定され、
前記屋内見込み片部は前記骨材に対して非固定とされ、
前記屋内見込み片部には、前記建具枠の吊元側見込み面と対向する熱膨張耐火材が設置され、
前記屋外見込み片部とともに前記骨材に固定具によって固定される保持片を備え、
前記保持片は、前記屋内見込み片部との間に熱膨張耐火材を挟む配置とされている
ことを特徴とする防火ドア。
A fitting frame, and a door attached to the hanger side of the fitting frame so as to be able to be opened and closed,
The door body includes a core material, an outdoor surface material installed on the outdoor side with respect to the core material, and an indoor surface material installed on the indoor side with respect to the core material,
The outdoor surface member has an outdoor surface portion that constitutes the outdoor surface of the door body, and an outdoor projection piece that is bent toward the indoor side from a vertical edge on the hanger side of the outdoor surface portion,
The indoor surface member has an indoor surface portion that constitutes the indoor surface of the door body, and an indoor projection piece portion that is bent outward from a vertical edge on the hanger side of the indoor surface portion,
An aggregate is installed between the core material and the outdoor prospective piece portion and the indoor prospective piece portion,
The outdoor prospective piece is fixed to the aggregate,
The indoor prospective piece is unfixed with respect to the aggregate,
A thermal expansion refractory material is installed in the indoor projection piece portion facing the projection side projection surface of the fitting frame,
A holding piece fixed to the aggregate by a fixture together with the outdoor prospective piece,
A fire door according to claim 1, wherein the holding piece is arranged to sandwich a thermal expansion fireproof material between the holding piece and the indoor projection piece.
請求項1または請求項2に記載の防火ドアにおいて、
前記建具枠は、上枠、下枠、戸先側縦枠および吊元側縦枠を備え、
前記吊元側縦枠には、戸先側に向かって延出した戸当り部が形成され、
前記戸当り部には、屋外側に開口した係合溝が形成され、
前記係合溝には、前記扉体の屋内面に当接する戸当り材が係合していると共に、前記開口から屋外側に熱膨張する熱膨張耐火材が設置されている
ことを特徴とする防火ドア。
A fire door according to claim 1 or claim 2,
The fitting frame includes an upper frame, a lower frame, a door-side vertical frame and a hanger-side vertical frame,
The suspension-side vertical frame is formed with a door stop portion extending toward the door tip side,
The doorstop portion is formed with an engaging groove that opens to the outside,
A doorstop material that abuts on the indoor surface of the door body is engaged with the engagement groove, and a thermal expansion fireproof material that thermally expands from the opening toward the outside is installed. fire door.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014163111A (en) 2013-02-25 2014-09-08 Sankyotateyama Inc Door
JP2017048662A (en) 2015-09-04 2017-03-09 Ykk Ap株式会社 Holding metal fitting and fitting
JP2017133234A (en) 2016-01-28 2017-08-03 日本化学産業株式会社 door
JP2018009330A (en) 2016-07-12 2018-01-18 Ykk Ap株式会社 Door body and fitting

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0913833A (en) * 1995-06-30 1997-01-14 Shimizu Corp Fire preventive metal frame for closable opening part

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014163111A (en) 2013-02-25 2014-09-08 Sankyotateyama Inc Door
JP2017048662A (en) 2015-09-04 2017-03-09 Ykk Ap株式会社 Holding metal fitting and fitting
JP2017133234A (en) 2016-01-28 2017-08-03 日本化学産業株式会社 door
JP2018009330A (en) 2016-07-12 2018-01-18 Ykk Ap株式会社 Door body and fitting

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