JPH0932432A - Fire-proof glass supporting structure - Google Patents

Fire-proof glass supporting structure

Info

Publication number
JPH0932432A
JPH0932432A JP7183019A JP18301995A JPH0932432A JP H0932432 A JPH0932432 A JP H0932432A JP 7183019 A JP7183019 A JP 7183019A JP 18301995 A JP18301995 A JP 18301995A JP H0932432 A JPH0932432 A JP H0932432A
Authority
JP
Japan
Prior art keywords
glass plate
frame
glass
upper frame
fire
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.)
Pending
Application number
JP7183019A
Other languages
Japanese (ja)
Inventor
Hisayoshi Chiba
久義 千葉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AGC Inc
Original Assignee
Asahi Glass Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Asahi Glass Co Ltd filed Critical Asahi Glass Co Ltd
Priority to JP7183019A priority Critical patent/JPH0932432A/en
Publication of JPH0932432A publication Critical patent/JPH0932432A/en
Pending legal-status Critical Current

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  • Securing Of Glass Panes Or The Like (AREA)
  • Special Wing (AREA)

Abstract

PROBLEM TO BE SOLVED: To improve a fire resistance and workability by interposing an elastic incombustible material between an upper frame of a frame and a fire-proof glass, and passing a fitting screw through a fitting hole provided in the upper edge of the glass so as to fit the glass to the upper frame. SOLUTION: A non-combustible sheet 2 as an elastic incombustible material is stuck to the upper frame 1a of a frame 1, and a ceramics tube 5 is inserted into a fitting hole 4 of a glass plate 3 made of the fire-proof glass. The glass plate 3 is fitted to the upper frame 1a through the sheet 2. An upper presser edge 7a is fitted to the upper frame 1a by a presser edge fixing screw 8a, and the back-up material 12 is fitted, and a space between the glass plate 3, the upper frame 1 and the upper presser edge 7a is filled with the incombustible seal 11. The similar execution is performed to the lower frame and the vertical frames. Since the upper edge of the glass plate is fixed to a sash frame so as to secure the function of the glass plate, even in the case of heating in the worst condition, hang-down of the glass plate is prevented, and the filling work of the non-combustible material is eliminated.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、防火区域に使用す
る防火ガラス支持構造に関する。
FIELD OF THE INVENTION The present invention relates to a fireproof glass support structure for use in fireproof areas.

【0002】[0002]

【従来の技術】防火戸には、防火のグレードとして甲種
防火戸と乙種防火戸がある。また、耐火加熱温度曲線に
おいて甲種防火戸は60分に、乙種防火戸は20分に合
格するものである。
2. Description of the Related Art Fire doors include Class A fire doors and Class O fire doors as fire prevention grades. Further, in the fireproof heating temperature curve, Class A fire doors pass 60 minutes, and Class B fire doors pass 20 minutes.

【0003】乙種防火戸に使用するガラス板としては網
入ガラス板があり、乙種防火戸に対する条件での加熱に
おいてガラス板は加熱途中で割れるが、網入ガラス板内
部の金属製の網はほとんど破れないので、網でガラス板
の脱落を防止して火の貫通を防止できる。
As a glass plate used for Class B fire doors, there is a netted glass plate. When heated under the conditions for Class B fire doors, the glass plate breaks during heating, but most metal nets inside the netted glass plate are present. Since it does not break, the net prevents the glass plate from falling off and prevents the penetration of fire.

【0004】しかし、網入ガラス板を甲種防火戸に対す
る条件で加熱すると、加熱時間が長くかつ加熱温度が高
いため、ガラスの軟化点を超える温度で長時間保持され
ることになり、ガラス板は軟化し垂れ下がって脱落して
しまうことがある。
However, when the wire-cored glass plate is heated under the conditions for the type A fire door, the heating time is long and the heating temperature is high. It may soften, sag and fall off.

【0005】また、低膨張強化ガラス板またはソーダラ
イム強化ガラス板を用いた場合、甲種防火戸に対する加
熱条件で割れることはないが、ガラス板が軟化し垂れ下
がってしまうことが知られている。
Further, it is known that when a low expansion tempered glass plate or a soda lime tempered glass plate is used, the glass plate does not crack under the heating conditions for a fire door of type A, but the glass plate softens and hangs down.

【0006】このガラス板の垂れ下がりの防止は、不燃
材をガラスのまわりに充分に詰めることにより実現でき
るが、このかち込み作業に時間がかかるという問題があ
り、また、ガラス板とサッシの溝幅の寸法公差の関係
で、隙間が狭くてかち込み作業ができない場合と、隙間
が広すぎてかち込み作業を行っても、甲種防火戸に対す
る条件で加熱したときにガラス板の垂れ下がりを防止で
きない場合があった。
The prevention of the glass plate from sagging can be realized by sufficiently filling the non-combustible material around the glass, but there is a problem that the cutting work takes a long time, and the groove width between the glass plate and the sash is also a problem. Due to the dimensional tolerances, when the gap is too narrow to allow the stowing work, or when the gap is too wide to prevent the sagging of the glass sheet when heated under the conditions for a Class A fire door. was there.

【0007】[0007]

【発明が解決しようとする課題】本発明の目的は、甲種
防火戸の製造において、ガラス板とサッシの溝幅の多少
の寸法公差に関係することなく、また、不燃材をガラス
のまわりに詰めるかち込み作業によることなく、ガラス
板を確実に枠体に保持してガラス板の脱落を防止し、か
つ、ガラス板を枠体に取り付ける作業を効率よく実現す
ることにある。
DISCLOSURE OF THE INVENTION It is an object of the present invention to pack a non-combustible material around glass in manufacturing an A-class fire door regardless of some dimensional tolerances of the groove widths of the glass plate and the sash. The object is to securely hold the glass plate on the frame body to prevent the glass plate from falling off and to efficiently attach the glass plate to the frame body without performing the pushing operation.

【0008】[0008]

【課題を解決するための手段】本発明は、防火ガラスの
周辺部を枠体と押縁とにより挟み込んで支持するととも
に、防火ガラスと枠体および押縁との隙間に難燃シール
を施してなる防火ガラス支持構造において、前記防火ガ
ラスの上辺には取付孔が明けられており、該防火ガラス
は、前記枠体をなす上枠と防火ガラスとの間に弾性難燃
材を介在させ、かつ取付螺子を前記取付孔に貫通させて
前記上枠に対し取り付けられていることを特徴とする防
火ガラス支持構造を提供する。
DISCLOSURE OF THE INVENTION According to the present invention, a peripheral portion of a fireproof glass is supported by being sandwiched between a frame body and a ridge, and a flame-retardant seal is provided in a gap between the fireproof glass and the frame body and the ridge. In the glass support structure, a mounting hole is formed in the upper side of the fireproof glass, and the fireproof glass has an elastic flame retardant material interposed between the upper frame forming the frame and the fireproof glass, and a mounting screw. Is provided to the upper frame by penetrating through the mounting hole.

【0009】本発明は、該取付孔の内壁面を覆うように
して管状不燃材が前記取付孔に挿入され、前記取付螺子
が該管状不燃材を貫通していることを特徴とする上記防
火ガラス支持構造をも提供する。
According to the present invention, the tubular noncombustible material is inserted into the mounting hole so as to cover the inner wall surface of the mounting hole, and the mounting screw penetrates the tubular noncombustible material. It also provides a support structure.

【0010】管状不燃材としては、セラミックス管のよ
うに管状に成形されたものや、アルミナシリケート系繊
維などの材質のシート状不燃材を丸めて前記取付孔に挿
入したものが使用できる。
As the tubular non-combustible material, a tubular shaped material such as a ceramics tube or a sheet-shaped non-combustible material made of alumina silicate fiber or the like rolled into a fitting hole can be used.

【0011】枠体や押縁や螺子としては熱による変形を
嫌うので、難燃性または不燃性で軟化点の高いものが好
ましく、鉄材やステンレス材などが用いられる。
Since the frame, the ridge and the screw do not like to be deformed by heat, they are preferably flame-retardant or non-combustible and have a high softening point, such as iron or stainless steel.

【0012】防火ガラスとしては低膨張強化ガラス板や
ソーダライム強化ガラス板などのガラス板が用いられ
る。
A glass plate such as a low expansion tempered glass plate or a soda lime tempered glass plate is used as the fireproof glass.

【0013】また、弾性難燃材としてはアルミナシリケ
ート系繊維のシートなどが、難燃シールとしては難燃シ
リコンシーラントなどが用いられる。
A sheet of alumina silicate fiber is used as the elastic flame-retardant material, and a flame-retardant silicone sealant is used as the flame-retardant seal.

【0014】本発明によれば、サッシの枠体に対して不
燃材を介してガラス板が取付螺子により機械的に保持さ
れる。このため、甲種防火戸の条件で加熱されたときに
ガラス板は軟化するが、防火ガラスパネル材の上辺また
は上辺と側辺がサッシ枠に対して機械的に保持されてい
るため、ガラス板は軟化して垂れ下がりはしない。
According to the present invention, the glass plate is mechanically held by the mounting screw through the non-combustible material with respect to the frame body of the sash. For this reason, the glass plate softens when heated under the conditions of Class A fire doors, but the glass plate is mechanically held to the sash frame at the top side or top side and side edges of the fire protection glass panel material. Does not soften and sag.

【0015】本発明はガラス板の熱による垂れ下がりを
防止するので、防火ガラスパネル材の下辺をサッシ枠に
対し保持する必要はない。また、従来技術のようなかち
込み作業がなくなるので作業性は向上する。
Since the present invention prevents the glass plate from sagging due to heat, it is not necessary to hold the lower side of the fireproof glass panel material against the sash frame. In addition, the workability is improved because the squeezing work as in the prior art is eliminated.

【0016】[0016]

【実施例】図1は、本発明の防火ガラス支持構造の1実
施例の要部縦断面図であり、防火ガラスとして用いられ
ているガラス板3が枠体1と押縁7により、挟み込まれ
て支持されている。符号11は難燃シール、符号12は
バックアップ材、符号13はセッティングブロックであ
る。
1 is a longitudinal sectional view of an essential part of an embodiment of a fireproof glass supporting structure of the present invention, in which a glass plate 3 used as fireproof glass is sandwiched by a frame 1 and a rim 7. It is supported. Reference numeral 11 is a flame-retardant seal, reference numeral 12 is a backup material, and reference numeral 13 is a setting block.

【0017】バックアップ材12としてはセラミックス
ファイバ、セッティングブロック13としてはケイ酸カ
ルシウムの板などが用いられる。
A ceramic fiber is used as the backup material 12, and a calcium silicate plate is used as the setting block 13.

【0018】枠体1をなす上枠1a、下枠1bには、押
縁7をなす上部押縁7a、下部押縁7bが押縁固定螺子
8a、8bにより固定されている。符号9a、9bは皿
孔である。
An upper rim 7a and a lower rim 7b, which form a ridge 7, are fixed to the upper frame 1a and the lower frame 1b, which form the frame 1, by ridge fixing screws 8a and 8b. Reference numerals 9a and 9b are countersinks.

【0019】ガラス板3には取付孔4が明けられ、その
取付孔4の内部には管状不燃材としてのセラミックス管
5が挿入され、ガラス板3が不燃材シート2を介して、
前記セラミックス管(管状不燃材)5に貫通された取付
螺子として用いられているビス6により上枠1aに取り
付けられている。
A mounting hole 4 is opened in the glass plate 3, a ceramic tube 5 as a tubular noncombustible material is inserted into the mounting hole 4, and the glass plate 3 is inserted through the noncombustible material sheet 2.
It is attached to the upper frame 1a by a screw 6 used as a mounting screw penetrating the ceramic tube (tubular noncombustible material) 5.

【0020】本実施例では、予め不燃材シート2に孔、
および上枠1aにタップ孔を明けておき、ボルトにより
ガラス板3を不燃材シート2を介して上枠1aに取り付
けてあるが、予め不燃材シート2および上枠1aに孔を
明けておくとともに、上枠1aに明けられた孔の内側に
雌螺子を熔接止めしておいてもよい。
In this embodiment, holes are formed in the noncombustible material sheet 2 in advance.
And the tap hole is opened in the upper frame 1a, and the glass plate 3 is attached to the upper frame 1a via the non-combustible material sheet 2 by bolts. The holes are formed in the non-combustible material sheet 2 and the upper frame 1a in advance. A female screw may be welded to the inside of the hole formed in the upper frame 1a.

【0021】符号10はワッシャである。本実施例では
ワッシャ10が一体になっているタッピングビス6を用
いているが、ワッシャを有しないタッピングビスをワッ
シャと組み合わせて用いてもよい。
Reference numeral 10 is a washer. Although the tapping screw 6 in which the washer 10 is integrated is used in this embodiment, a tapping screw having no washer may be used in combination with the washer.

【0022】図2は、本発明の防火ガラス支持構造の1
実施例の要部横断面図である。ガラス板(防火ガラス)
3が、枠体1をなす縦枠1cと、押縁7をなす側部押縁
7cにより挟み込まれて支持されている。符号8c、9
c、11、12は押縁固定螺子、皿孔、難燃シール、バ
ックアップ材である。
FIG. 2 shows a fireproof glass support structure according to the present invention.
It is a principal part transverse cross section of an Example. Glass plate (fireproof glass)
3 is sandwiched and supported by a vertical frame 1c forming the frame body 1 and a side ridge 7c forming the ridge 7. Reference numerals 8c and 9
Reference numerals c, 11 and 12 are a ridge fixing screw, a countersink, a flame-retardant seal, and a backup material.

【0023】図3は、本発明の防火ガラス支持構造の1
実施例に使用されるガラス板の構成説明図である。図3
(a)に示すように、ガラス板のサイズが小さいときは
ガラス板3に1個の取付孔4が明けられ、ガラス板3が
枠体に1個の取付螺子で取り付けられる。また、図3
(b)に示すように、ガラス板のサイズが大きいときは
ガラス板3に2個以上たとえば3個の取付孔4、4、4
が明けられ、ガラス板3が枠体に3個の取付螺子で取り
付けられる。
FIG. 3 shows a fireproof glass support structure 1 according to the present invention.
It is a structure explanatory view of the glass plate used for an example. FIG.
As shown in (a), when the size of the glass plate is small, one mounting hole 4 is opened in the glass plate 3 and the glass plate 3 is mounted to the frame body with one mounting screw. Also, FIG.
As shown in (b), when the size of the glass plate is large, two or more, for example, three mounting holes 4, 4, 4 are formed in the glass plate 3.
And the glass plate 3 is attached to the frame with three attachment screws.

【0024】図4は、本発明の防火ガラス支持構造の1
実施例における組み立て手順の説明図である。
FIG. 4 is a view of a fireproof glass support structure of the present invention.
It is explanatory drawing of the assembly procedure in an Example.

【0025】図4(a)は第1手順を説明するもので、
図示のように、上枠1aに不燃材シート2を貼り付け
る。また、取付孔4が明けられているガラス板3にセラ
ミックス管5を挿入する。取付孔4の位置は、ガラス板
3の厚みや上枠1aとの寸法合わせなどにより適宜決め
られる。本実施例では、厚さ6.5mmの低膨張強化ガ
ラス板であるガラス板3を用い、A=10mmの位置に
B=8mmの取付孔4が明けられている。また、取付孔
4の孔位置に対応して、不燃材2に孔、上枠1aにタッ
プ孔が明けられている。
FIG. 4A illustrates the first procedure.
As illustrated, the noncombustible material sheet 2 is attached to the upper frame 1a. Further, the ceramic tube 5 is inserted into the glass plate 3 having the mounting hole 4 formed therein. The position of the mounting hole 4 is appropriately determined depending on the thickness of the glass plate 3 and the size of the upper frame 1a. In this embodiment, a glass plate 3 which is a low expansion tempered glass plate having a thickness of 6.5 mm is used, and a mounting hole 4 of B = 8 mm is formed at a position of A = 10 mm. Further, a hole is formed in the non-combustible material 2 and a tap hole is formed in the upper frame 1a corresponding to the hole position of the mounting hole 4.

【0026】図4(b)は第2手順を説明するもので、
図示のように、次に、ワッシャ10を有するビス6によ
り、ガラス板3が不燃材シート2を介して上枠1aに取
り付けられる。
FIG. 4B illustrates the second procedure.
Next, as shown in the drawing, the glass plate 3 is attached to the upper frame 1 a via the non-combustible material sheet 2 with the screw 6 having the washer 10.

【0027】図4(c)は第3手順を説明するもので、
図示のように、次に、押縁固定螺子8aにより上部押縁
7aが上枠1aに取り付けられる。
FIG. 4C illustrates the third procedure.
Next, as shown in the drawing, the upper ridge 7a is attached to the upper frame 1a by the ridge fixing screw 8a.

【0028】図4(d)は第4手順を説明するもので、
図示のように、次に、バックアップ材12が嵌め込ま
れ、ガラス板3と上枠1aおよび上部押縁7aとの隙間
に難燃シール11が施される。下枠や縦枠についても同
様にして処理される。
FIG. 4D illustrates the fourth procedure.
Next, as shown in the drawing, the backup material 12 is fitted, and the flame-retardant seal 11 is provided in the gaps between the glass plate 3 and the upper frame 1a and the upper rim 7a. The lower frame and the vertical frame are processed in the same manner.

【0029】[0029]

【発明の効果】本発明の構成によれば、サッシ枠に対し
てガラスパネルの上辺が機械的に固定されるので、甲種
防火戸の条件で加熱されたときガラス板は軟化するが垂
れ下がりはしない。このため、甲種防火戸にガラス板が
使用でき、ガラス板の透明性を生かして、火災の発見お
よび避難経路の発見などの安全性の向上の面でも効果が
ある。
According to the structure of the present invention, since the upper side of the glass panel is mechanically fixed to the sash frame, the glass plate softens but does not sag when heated under the conditions of a class A fire door. . For this reason, a glass plate can be used for the Class A fire door, and the transparency of the glass plate is used to effectively improve the safety such as the discovery of a fire and the discovery of an evacuation route.

【0030】また、ガラス板の熱による垂れ下がり防止
のために不燃材をガラス板のまわりに詰める方法は、か
ち込み作業に時間がかかったり、かち込み作業ができな
かったり、緩すぎて垂れ下がりを防止できなかったりな
どと問題が多かったが、本発明ではこの問題が解決さ
れ、かち込み作業がなくなるため、作業性も向上する。
The method of packing the non-combustible material around the glass plate in order to prevent the glass plate from sagging due to the heat is such that it takes a long time to perform the cutting operation, the cutting operation cannot be performed, and the sagging is prevented because it is too loose. Although there were many problems such as not being able to do so, the present invention solves this problem and eliminates the need for a squeezing work, thus improving workability.

【0031】[0031]

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の防火ガラス支持構造の1実施例の要部
縦断面図である。
FIG. 1 is a longitudinal sectional view of an essential part of one embodiment of a fireproof glass support structure of the present invention.

【図2】本発明の防火ガラス支持構造の1実施例の要部
横断面図である。
FIG. 2 is a cross-sectional view of a main part of one embodiment of the fireproof glass support structure of the present invention.

【図3】本発明の防火ガラス支持構造の1実施例に使用
されるガラス板の構成説明図であり、(a)はガラス板
のサイズが小さいとき、(b)はガラス板のサイズが大
きいときの構成説明図である。
FIG. 3 is a structural explanatory view of a glass plate used in one embodiment of the fireproof glass support structure of the present invention, (a) shows a small glass plate, and (b) shows a large glass plate. It is a structure explanatory view at the time.

【図4】本発明の防火ガラス支持構造の1実施例におけ
る組み立て手順の説明図であり、(a)、(b)、
(c)、(d)は各々第1、2、3、4手順である。
FIG. 4 is an explanatory view of an assembling procedure in one embodiment of the fireproof glass support structure of the present invention, including (a), (b),
(C) and (d) are the first, second, third, and fourth procedures, respectively.

【符号の説明】[Explanation of symbols]

1:枠体、 1a:上枠、 1b:下枠、 1c:縦枠、 2:不燃材シート(弾性難燃材)、 3:低膨張ガラス板(防火ガラス)、 4:取付孔、 5:セラミックス管(管状不燃材)、 6:ビス(取付螺子)、 7:押縁、 7a:上部押縁、 7b:下部押縁、 7c:側部押縁、 8aと8bと8c:押縁固定螺子、 9aと9bと9c:皿孔、 10:ワッシャ、 11:難燃シール、 12:バックアップ材、 13:セッティングブロック。 1: Frame body, 1a: Upper frame, 1b: Lower frame, 1c: Vertical frame, 2: Incombustible material sheet (elastic flame retardant material), 3: Low expansion glass plate (fireproof glass), 4: Mounting hole, 5: Ceramic tube (tubular non-combustible material), 6: screw (mounting screw), 7: ridge, 7a: upper ridge, 7b: lower ridge, 7c: side ridge, 8a, 8b and 8c: ridge fixing screw, 9a and 9b and 9c: countersink, 10: washer, 11: flame-retardant seal, 12: backup material, 13: setting block.

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】防火ガラスの周辺部を枠体と押縁とにより
挟み込んで支持するとともに、防火ガラスと枠体および
押縁との隙間に難燃シールを施してなる防火ガラス支持
構造において、前記防火ガラスの上辺には取付孔が明け
られており、該防火ガラスは、前記枠体をなす上枠と防
火ガラスとの間に弾性難燃材を介在させ、かつ取付螺子
を前記取付孔に貫通させて前記上枠に対し取り付けられ
ていることを特徴とする防火ガラス支持構造。
1. A fireproof glass support structure comprising a frame and a rim for supporting a peripheral portion of the fireproof glass, and a flame-retardant seal provided in a gap between the fireproof glass and the frame and rim. A mounting hole is formed in the upper side of the fireproof glass, and an elastic flame-retardant material is interposed between the upper frame forming the frame and the fireproof glass, and a mounting screw is passed through the mounting hole. A fireproof glass supporting structure, which is attached to the upper frame.
【請求項2】該取付孔の内壁面を覆うようにして管状不
燃材が前記取付孔に挿入され、前記取付螺子が該管状不
燃材を貫通していることを特徴とする請求項1の防火ガ
ラス支持構造。
2. A fireproof material according to claim 1, wherein a tubular noncombustible material is inserted into the mounting hole so as to cover an inner wall surface of the mounting hole, and the mounting screw penetrates the tubular noncombustible material. Glass support structure.
JP7183019A 1995-07-19 1995-07-19 Fire-proof glass supporting structure Pending JPH0932432A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7183019A JPH0932432A (en) 1995-07-19 1995-07-19 Fire-proof glass supporting structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7183019A JPH0932432A (en) 1995-07-19 1995-07-19 Fire-proof glass supporting structure

Publications (1)

Publication Number Publication Date
JPH0932432A true JPH0932432A (en) 1997-02-04

Family

ID=16128325

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7183019A Pending JPH0932432A (en) 1995-07-19 1995-07-19 Fire-proof glass supporting structure

Country Status (1)

Country Link
JP (1) JPH0932432A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005207226A (en) * 2005-01-26 2005-08-04 Nippon Sheet Glass Co Ltd Assembling structure of fireproof glass, fireproof glass door, and fireproof glass window
JP2015140533A (en) * 2014-01-27 2015-08-03 Ykk Ap株式会社 door
JP2018053540A (en) * 2016-09-28 2018-04-05 株式会社Lixil Fitting and construction method of the fitting
CN109653645A (en) * 2018-12-26 2019-04-19 湖南省金为新材料科技有限公司 A kind of fire prevention system with hollow glass

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005207226A (en) * 2005-01-26 2005-08-04 Nippon Sheet Glass Co Ltd Assembling structure of fireproof glass, fireproof glass door, and fireproof glass window
JP2015140533A (en) * 2014-01-27 2015-08-03 Ykk Ap株式会社 door
JP2018053540A (en) * 2016-09-28 2018-04-05 株式会社Lixil Fitting and construction method of the fitting
CN109653645A (en) * 2018-12-26 2019-04-19 湖南省金为新材料科技有限公司 A kind of fire prevention system with hollow glass

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