JP2001132352A - Supporting structure for fireproof glass pane - Google Patents
Supporting structure for fireproof glass paneInfo
- Publication number
- JP2001132352A JP2001132352A JP31719099A JP31719099A JP2001132352A JP 2001132352 A JP2001132352 A JP 2001132352A JP 31719099 A JP31719099 A JP 31719099A JP 31719099 A JP31719099 A JP 31719099A JP 2001132352 A JP2001132352 A JP 2001132352A
- Authority
- JP
- Japan
- Prior art keywords
- glass plate
- heat
- glass pane
- frame material
- fireproof
- 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
Links
Landscapes
- Special Wing (AREA)
- Joining Of Glass To Other Materials (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、熱により軟化し、
枠材、特に枠材上辺から脱落するようなガラス板、例え
ばソーダ石灰シリカ系高強化ガラス等の防火ガラス板を
枠材に支持することにより、火災時に建屋内または外に
発生した火煙の他方の建屋外または内への吹出しを防止
する防火ガラス板の支持構造に関する。The present invention relates to a method for softening by heat,
By supporting the frame material, especially a glass plate that falls off from the upper side of the frame material, for example, a fire-resistant glass plate such as soda-lime-silica-based high-strength glass, on the frame material, the other of the smoke generated inside or outside the building during a fire The present invention relates to a support structure for a fireproof glass plate for preventing blowing out of or inside a building.
【０００２】[0002]
【従来技術および解決すべき課題】ソーダ石灰シリカ系
ガラス板を著しく強化させることにより、それを加熱し
た際の熱応力に抗して堅牢性を維持し、破断して火煙が
一方から他方側へ吹出すような不具合を防止することが
できる。2. Description of the Related Art A soda-lime-silica glass sheet is significantly strengthened so as to maintain its robustness against thermal stress when it is heated, and to break to cause smoke from one side to the other side. It is possible to prevent a problem such as blowing to the outside.
【０００３】但し極く特殊のガラス組成物を除けば、ソ
ーダ石灰シリカ系ガラスをはじめとする通常のガラス組
成物はその軟化点が750℃以下程度であり、これに対し
建設省告示による甲種防火戸における加熱温度(加熱炉
内温度)−時間は925℃−60分であるため、前記加熱によ
る破断、破損を免れたとしても軟化点付近またはそれ以
上の高温加熱に際してはガラス板が軟化して枠材から脱
落し、該部からの火煙の吹出しを防止することはできな
い。[0003] However, except for a very special glass composition, ordinary glass compositions such as soda-lime-silica glass have a softening point of about 750 ° C or less. Heating temperature in the door (heating furnace temperature)-time is 925 ℃ -60 minutes, so the glass plate is softened during high temperature heating near or above the softening point even if the breakage due to the heating was avoided, even if the breakage was avoided. It cannot be prevented from dropping from the frame material and blowing out the smoke from the portion.
【０００４】高温加熱しても前記ガラス板の枠材からの
脱落を防ぐうえで、予めガラス板周縁部に貫通孔を設
け、該貫通孔に支持ピンを挿通して枠材に係止させ、脱
落を防ぐ設計工夫は公知であるが、貫通孔を設けた場合
のガラスの均一強化は困難であり、加熱過程で破断を招
き易く、また貫通孔を設ける工程自体手間、時間を要
し、コストを高騰する。In order to prevent the glass plate from falling off the frame material even when heated at a high temperature, a through hole is provided in advance in the peripheral portion of the glass plate, a support pin is inserted into the through hole, and the glass plate is engaged with the frame material. Although a design method for preventing the falling-off is known, it is difficult to uniformly strengthen the glass when the through-hole is provided, easily breaks in the heating process, and the process itself of providing the through-hole requires time, time, and cost. Soaring.
【０００５】また、枠材のガラス板周縁部を嵌入する凹
所には加熱膨張性充填材を介在させ、加熱時その膨張に
よりガラス板周縁部を挟圧する手段も公知であるが、前
記充填材自体軟化性材料であるため、軟化したガラス板
の脱落を防止するのは困難である。There is also known a means in which a heat-expandable filler is interposed in a concave portion of the frame material into which the glass plate peripheral edge is fitted, and the glass plate peripheral edge is pressed by expansion when heated. Since the material itself is a softening material, it is difficult to prevent the softened glass plate from falling off.
【０００６】特開昭61−14384号公報には、枠材凹所と
ガラス板周縁部の一側面との間に熱により拡張する物質
を配置し、その拡張作用によりシール部材を介してガラ
ス板周縁部を押圧する構成で、前記拡張する物質として
発泡性膨脹材、バネ材料、バイメタル片、ガス圧を利用
した拡張材等が開示されている。上記開示例はガラス板
を平面で押圧するものであり、充分な押圧、保持作用を
得るうえではそれなりの設計、工夫が必要であって、ま
た、その分コストを高騰する。In Japanese Patent Application Laid-Open No. 61-14384, a substance which expands by heat is arranged between a recess of a frame material and one side surface of a peripheral portion of a glass plate. There are disclosed a foaming expandable material, a spring material, a bimetal piece, an expanding material using gas pressure, and the like as the expanding material, which is configured to press a peripheral portion. In the above disclosed example, the glass plate is pressed with a flat surface, and to obtain a sufficient pressing and holding action, a certain design and contrivance are required, and the cost increases accordingly.
【０００７】特開平７−324557号公報には枠材凹所に配
した断面Ω型バイメタル製の挟持部材の先端域でガラス
板周縁部を挟圧する構成が、特開平８−158749号公報に
は枠材凹所に接して配した金属製保持部材の先端部でガ
ラス板周縁縁部を挟圧する構成が開示されている。それ
らはバネ作用でガラス板を挟圧するものであるが、高温
においては脆化し易く、充分な保持力を維持するのが困
難と思料されるが、また加熱されたときに位置ずれを生
じ易い。Japanese Patent Application Laid-Open No. Hei 7-324557 discloses a configuration in which a peripheral portion of a glass plate is pressed at the distal end region of a holding member made of a bimetallic cross section disposed in a frame material recess. There is disclosed a configuration in which a distal end of a metal holding member disposed in contact with a frame material recess presses a peripheral edge of a glass plate. Although they press the glass plate by the action of a spring, they are easily embrittled at high temperatures, and it is considered difficult to maintain a sufficient holding force. However, they tend to be displaced when heated.
【０００８】特開平７−259447号公報には、枠材および
押縁からなる凹所にガラス板周縁部を保持するもので、
ガラス板の一方の側面は受け不燃材を介して枠材に保持
され、他方の側面は押え不燃材、押え金属板を介して押
縁に螺合した押え螺子の圧力で保持される構成が開示さ
れているが、押え螺子は熱を受ける間、ガラス板の厚み
変動等に応じて進退可能に設けるものではなく、軟化し
薄厚となったガラスを保持する作用はない。Japanese Patent Application Laid-Open No. 7-259447 discloses a technique in which a glass plate peripheral portion is held in a recess formed by a frame material and a ridge.
A configuration is disclosed in which one side surface of a glass plate is held by a frame material via a receiving non-combustible material, and the other side surface is held by a pressing non-combustible material, the pressure of a pressing screw screwed to a pressing edge via a pressing metal plate. However, the holding screw is not provided so as to be able to advance and retreat in response to a change in the thickness of the glass plate while receiving heat, and has no function of holding the softened and thin glass.
【０００９】本発明は、上記従来技術の不具合を解消
し、容易な手段で防火ガラス板を充分保持できる防火ガ
ラス板の支持構造を提供することを目的とする。SUMMARY OF THE INVENTION It is an object of the present invention to provide a supporting structure for a fireproof glass plate which can solve the above-mentioned problems of the prior art and can sufficiently hold the fireproof glass plate by easy means.
【００１０】[0010]
【課題を解決するための手段】本発明は、防火扉または
防火窓における耐熱性枠材に防火ガラス板を支持する構
造において、対向する一対の把持片を断面略Π型とした
把持金具を、枠材のガラス板取付け凹所に付設し、前記
ガラス板周縁部を把持金具の前記把持片により把持さ
せ、両把持片とガラス板取付け凹所の両縦辺間は耐熱性
充填材を介在させてなり、前記一方または双方の凹所の
耐熱性充填材が加熱膨張性材料である防火ガラス板の支
持構造である。According to the present invention, there is provided a structure for supporting a fire-resistant glass plate on a heat-resistant frame material of a fire door or a fire window. Attached to the glass plate mounting recess of the frame material, the peripheral edge of the glass plate is gripped by the gripping piece of the gripping metal, and a heat resistant filler is interposed between both gripping pieces and both vertical sides of the glass plate mounting recess. The heat-resistant filler in one or both of the recesses is a support structure for a fireproof glass plate in which a heat-expandable material is used.
【００１１】更に把持金具における把持片のガラス板接
触域に突起を付設したものである。なお、枠材における
ガラス板取付け凹所を封止するための耐熱性封止材を配
設するのが好ましい。[0011] Further, a projection is provided on the holding plate of the holding piece in the contact area of the glass plate. It is preferable to provide a heat-resistant sealing material for sealing the glass plate mounting recess in the frame material.
【００１２】[0012]
【発明の実施の形態】本発明は、先述の如くソーダ石灰
シリカ系ガラス等を高強化した防火ガラス板であって、
軟化点が建設省告示による甲種防火戸における加熱温度
(925℃）に到らないガラス板に好適に採用できるもの
であるが、勿論軟化点の高い硼珪酸系ガラス、あるいは
これを強化したガラス、石英ガラス、結晶化ガラス、そ
れらガラスの複層ガラス、ガラス板間に水性ゲルを内在
した複層タイプのガラスでいわゆるゲル入り防火ガラス
等においても適用できるものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a fire-resistant glass plate in which soda-lime-silica glass or the like is highly strengthened as described above,
Heating temperature of Class A fire door with softening point notified by Ministry of Construction
(925 ° C.), which can be suitably used for a glass plate, but of course, a borosilicate glass having a high softening point, or glass reinforced with this, quartz glass, crystallized glass, or a multi-layer glass of such glass It is a multi-layer type glass in which an aqueous gel is interposed between glass plates and can be applied to so-called gel-containing fireproof glass and the like.
【００１３】本発明は、鉄鋼等の前記加熱温度に耐え、
変形し難い耐熱性枠材を用い、特に防火ガラス板の上辺
を支持するうえで好適に採用され、例えば防火ガラス板
の下辺や両縦辺においては、枠材のガラス板取付け凹所
と前記各辺の間にシリコーン等の難燃性材料で接着また
は粘着し、シールすればよいが、勿論前記各辺において
も本発明の把持金具により把持する手段を構ずることが
できる。[0013] The present invention withstands the heating temperature of steel or the like,
Using a heat-resistant frame material that is not easily deformed, it is particularly suitably used to support the upper side of the fire-resistant glass plate.For example, on the lower side and both vertical sides of the fire-resistant glass plate, the glass plate mounting recess of the frame material and The sides may be adhered or adhered with a flame-retardant material such as silicone, and sealed. However, it is needless to say that a means for holding each side by the holding metal fitting of the present invention can also be provided.
【００１４】以下図面に基づき本発明を説明する。図１
は、本発明の防火ガラス板の支持構造における枠材と防
火ガラス板の係わりを示す側断面図である。枠材１は枠
材本体１−aと押縁１−bとからなり、これらで形成する
ガラス板取付け凹所８の両縦辺１−c、１−dの間に、例
えば高強化ソーダ石灰系ガラスからなる防火ガラス板２
の端縁部（図においては上辺部）が挿入され、取付けら
れる。具体的にはガラス板取付け凹所８の内に断面略Π
型の耐熱金属製（例えば鋼製）把持金具３を配置し、該
把持金具の両把持片３−aにより防火ガラス板周縁部を
把持する。The present invention will be described below with reference to the drawings. FIG.
FIG. 3 is a side sectional view showing the relationship between the frame material and the fire prevention glass plate in the support structure for a fire prevention glass plate of the present invention. The frame material 1 is composed of a frame material main body 1-a and a pressing edge 1-b, and a high-strength soda-lime-based material is provided between the two vertical sides 1-c and 1-d of the glass plate mounting recess 8 formed by these. Fire protection glass plate 2 made of glass
(The upper side in the figure) is inserted and attached. Specifically, the cross-section is substantially within the glass plate mounting recess 8.
A mold heat-resistant metal (for example, steel) grip 3 is arranged, and the peripheral edge of the fireproof glass plate is gripped by both grip pieces 3-a of the grip.
【００１５】把持金具３をガラス板取付け凹所８の内に
配置する例としては、該ガラス板取付け凹所８の頂辺１
−eには貫通孔（スリット）６を設け、これに把持金具
３の支持辺３−bを挿通し、支持辺３−bの先端域（上端
域）にはピン挿通孔７−aを設けてスナップピン７を挿
通し、更にスナップピン７はガラス板取付け凹所の頂辺
１−eの外側辺に載置、係止することにより、把持金具
の把持片３−aをガラス板取付け凹所８の内に吊持する
のが好適である。勿論配置手段はこれに限らず、把持金
具３の支持辺３−bを頂辺１−eにビス止めしたり、金属
材質にもよるが溶接、半田付けその他の固着手段により
配置、固定できる。As an example of arranging the grip 3 in the glass plate mounting recess 8, the top 1 of the glass plate mounting recess 8 is used.
At -e, a through hole (slit) 6 is provided, through which the support side 3-b of the grip 3 is inserted, and a pin insertion hole 7-a is provided at the tip end area (upper end area) of the support side 3-b. Then, the snap pin 7 is inserted, and the snap pin 7 is placed and locked on the outer side of the top side 1-e of the glass plate mounting recess. It is suitable to hang it in the place 8. Of course, the arrangement means is not limited to this, and the support side 3-b of the grip metal 3 can be screwed to the top side 1-e, or can be arranged and fixed by welding, soldering or other fixing means depending on the metal material.
【００１６】把持金具の両把持片３−aとガラス板取付
け凹所の両縦辺１−c、１−dの間は耐熱性充填材４を介
在させ、前記一方または双方の耐熱性充填材４が加熱膨
張性材料からなる（図においては左右双方の凹所の耐熱
性充填材４が加熱膨張性材料である）。加熱膨脹性材料
は、珪酸ソーダゲル成形体をはじめとする有機、無機質
水性ゲル成形体、ひる石等の膨張性石粒、膨脹黒鉛、そ
の他発泡成分入り難燃性樹脂材等公知の加熱膨脹性材料
が使用できる。なお、一方の耐熱性充填材４を加熱膨張
性材料とした場合、他方の耐熱性充填材は加熱膨張性材
料でなくてもよく、例えば無機繊維製シート、マット片
等からなり、これをシリコーン接着剤等によりガラス板
取付け凹所８における縦辺１−c（または１−d）と防火
ガラス板２とに接着し固定してもよい。A heat-resistant filler 4 is interposed between the two gripping pieces 3-a of the grip metal and the two vertical sides 1-c and 1-d of the glass plate mounting recess, and one or both of the heat-resistant fillers are provided. 4 is made of a heat-expandable material (in the figure, the heat-resistant filler 4 in both the left and right recesses is a heat-expandable material). Heat-expandable materials include known heat-expandable materials such as sodium silicate gel molded products, organic and inorganic aqueous gel molded products, expandable stones such as vermiculite, expanded graphite, and other flame-retardant resin materials containing a foaming component. Can be used. When one of the heat-resistant fillers 4 is made of a heat-expandable material, the other heat-resistant filler may not be a heat-expandable material, and may be made of, for example, an inorganic fiber sheet or a mat piece. The fire protection glass plate 2 may be bonded to the vertical side 1-c (or 1-d) of the glass plate mounting recess 8 with an adhesive or the like.
【００１７】更に枠材におけるガラス板取付け凹所８を
封止するために耐熱性封止材５を配設するのが好まし
い。耐熱性封止材５としてはシリコーン系高分子材料が
推奨できるが、これに限定するものではない。耐熱性封
止材５は通常使用時において水分や塵の侵入を防ぎ、ま
た枠材１（ガラス板取付け凹所８）と防火ガラス板２の
接着を強固とする。Further, it is preferable to provide a heat-resistant sealing material 5 for sealing the glass plate mounting recess 8 in the frame material. As the heat-resistant sealing material 5, a silicone polymer material can be recommended, but is not limited thereto. The heat-resistant sealing material 5 prevents the intrusion of moisture and dust during normal use, and makes the bonding between the frame 1 (the glass plate mounting recess 8) and the fireproof glass plate 2 strong.
【００１８】図２は把持金具３の斜視図であり、把持金
具の両把持片３−aとガラス板２との接触域に突起を配
設した例であり、突起として突条ａを横設することによ
り、ガラス板２が熱軟化し枠体よりずれ落ちるようなケ
ースにおいても突条ａの先端がガラス板面に貫入してこ
れを支持する。突起や突条は各把持片に複数配すればガ
ラス板の把持がより確実となる。また、図２に示す例
は、把持金具における両把持片３−a、支持片３−bを軸
ｂを中心に回動可能とし、従って支持片３−bを支持し
た状態で両把持片３−aの先端側は軸ｂを基に蝶番式に
互いに近接、離隔可能に配したものである。これに限ら
ず、両把持片３−aをП型、∩型、∧型等に一体化した
バネ状屈曲片（屈折片）としてもよい。それらは加熱膨
張性材料の膨張圧により容易に撓むように設計する。FIG. 2 is a perspective view of the holding fixture 3, showing an example in which a projection is provided in a contact area between the two holding pieces 3-a of the holding fixture and the glass plate 2, and a ridge a is horizontally provided as the projection. By doing so, even in a case where the glass plate 2 is thermally softened and slips off the frame, the tip of the ridge a penetrates the glass plate surface and supports it. If a plurality of projections and ridges are arranged on each gripping piece, the gripping of the glass plate becomes more reliable. In the example shown in FIG. 2, both grip pieces 3-a and support pieces 3-b of the grip metal are rotatable about the axis b, and thus, both grip pieces 3 are supported in a state where the support pieces 3-b are supported. The tip side of -a is hinged on the axis b so as to be close to and separated from each other. However, the present invention is not limited thereto, and the both grip pieces 3-a may be spring-shaped bent pieces (refraction pieces) integrated into a П shape, a ∩ shape, a ∧ shape, or the like. They are designed to flex easily due to the expansion pressure of the heat-expandable material.
【００１９】図３は防火ガラス板と把持金具の位置関係
を示す正面図（他の部材は省いてある）であり、把持金
具３は防火ガラス板２の上辺を複数箇所、図においては
３箇所において支持している。破線ｃで囲った部分は防
火ガラス板２の枠材１に挿入されていない領域を示し、
破線ｃ−一点鎖線ｄの間の領域９は耐熱性封止材による
封止領域を示す。なお、防火ガラス板２の下辺は枠材上
に複数箇所設置した珪酸カルシウム等よりなるセッティ
ングブロック上に載置されるものであり、セッティング
ブロックの図示は省略する。また先述の如く、防火ガラ
ス板の縦辺、下辺においても把持金具で把持し、ガラス
板を把持することができる。FIG. 3 is a front view showing the positional relationship between the fire prevention glass plate and the gripping metal (other members are omitted). We support in. A portion surrounded by a broken line c indicates a region of the fireproof glass plate 2 that is not inserted into the frame material 1,
A region 9 between the dashed line c and the one-dot chain line d indicates a sealing region with the heat-resistant sealing material. Note that the lower side of the fire prevention glass plate 2 is placed on a setting block made of calcium silicate or the like provided at a plurality of positions on the frame material, and illustration of the setting block is omitted. Further, as described above, the vertical and lower sides of the fireproof glass plate can also be gripped by the gripping metal to hold the glass plate.
【００２０】[0020]
【実施例】実施例 ： 幅500mm、高さ1000mm、厚み約６m
mのソーダ石灰系フロートガラスを糸面取り加工し、端
面および糸面を研磨したうえで熱強化炉において加熱急
冷し、表面圧縮応力がほぼ196MPAの均一に高強化された
防火ガラス板２を得た。これを上記実施形態で示した鋼
製枠１のガラス板取付け凹所８に取付け、ガラス板上辺
３箇所を鋼製把持金具３で把持し、把持金具の各把持片
３−aと縦辺１−c、および縦辺１−dの間は膨張黒鉛含
有シリコーン樹脂４を配在し、またガラス板２の全周と
枠材のガラス板取付け凹所８の間はシリコーン製封止材
５により封着した。[Example] Example : Width 500mm, height 1000mm, thickness about 6m
m soda-lime-based float glass is chamfered, polished on the end face and the thread face, and then heated and quenched in a heat strengthening furnace to obtain a fire-resistant glass plate 2 having a surface compressive stress of approximately 196MPA, which is uniformly strengthened. . This is attached to the glass plate mounting recess 8 of the steel frame 1 shown in the above-described embodiment, and three upper sides of the glass plate are gripped by the steel gripping metal fittings 3. -C, and between the vertical sides 1-d, an expanded graphite-containing silicone resin 4 is disposed, and a silicone sealing material 5 is provided between the entire periphery of the glass plate 2 and the glass plate mounting recess 8 of the frame material. Sealed.
【００２１】上記実施例の防火ガラス板を建設省告示に
準ずる防火試験装置の開口部にセットし、甲種防火戸の
加熱基準に基づき60分−925℃に加熱した。加熱中ガラ
ス板が破損、破断し、火炎が貫通することもなく、ま
た、封着部からの火煙の発生も認められなかった。な
お、加熱過程終段においてガラス板が軟化し、板面の湾
曲も認められたが、ガラス板が枠材から脱落するような
兆候もなかった。The fireproof glass plate of the above example was set in the opening of a fire test apparatus according to the notification of the Ministry of Construction, and heated to -925 ° C. for 60 minutes based on the heating standard of Class A fire door. During the heating, the glass plate was broken or broken, the flame did not penetrate, and no generation of smoke from the sealing portion was observed. At the end of the heating process, the glass plate was softened and the plate surface was curved, but there was no sign of the glass plate falling off the frame material.
【００２２】加熱終了し放冷後、規定に則り規定重量の
重錘をガラス板外側面に衝突させたが、ガラス板の破断
や枠材からの脱離もなく、甲種防火戸として適用できる
ものであることが分かった。After the heating and cooling down, a weight having a specified weight was caused to collide with the outer surface of the glass sheet in accordance with the rules, but the glass sheet was not broken or detached from the frame material and could be used as a class A fire door. It turned out to be.
【００２３】比較例 ： 実施例同様の防火ガラス板、枠
材を用い、ガラス板を把持金具で把持することなく、実
施例同様に封着したうえで、防火試験に供した。 Comparative Example : The same fireproof glass plate and frame material as in the example were used, and the glass plate was sealed in the same manner as in the example without being held by a holding metal fitting, and then subjected to a fireproof test.
【００２４】実施例同様に加熱したところ、加熱開始後
30分−840℃においてガラス板の上辺が枠材からずれ落
ち、該部から加熱炉外への火炎の噴出が認められ、試験
を中止した。本比較例においては甲種防火戸として不適
格である。When heating was performed in the same manner as in the example,
At −840 ° C. for 30 minutes, the upper side of the glass plate slipped off the frame material, and a flame was ejected from the portion to the outside of the heating furnace, and the test was stopped. In this comparative example, it is ineligible as Class A fire door.
【００２５】[0025]
【発明の効果】本発明によれば、容易な手段により火災
時においても防火ガラス板を充分保持できるものであ
り、特に熱軟化したガラス板を枠材から離脱することな
く支持するうえで好適である。According to the present invention, the fire prevention glass plate can be sufficiently held even in the event of a fire by a simple means, and is particularly suitable for supporting the thermally softened glass plate without detaching from the frame material. is there.
【図１】本発明の防火ガラス板の支持構造における枠材
と防火ガラス板の係わりを示す側断面図である。FIG. 1 is a side sectional view showing the relationship between a frame material and a fireproof glass plate in a support structure for a fireproof glass plate of the present invention.
【図２】把持金具の一例を示す斜視図である。FIG. 2 is a perspective view showing an example of a grip.
【図３】防火ガラス板と把持金具の位置関係を示す正面
図である。FIG. 3 is a front view showing a positional relationship between a fire prevention glass plate and a grip metal.
１ 枠材 １−a 枠材本体 １−b 押縁 １−c、１−d 縦辺 ２ 防火ガラス板 ３ 把持金具 ３−a 把持片 ３−b 支持片 ４ 耐熱性充填材 ５ 耐熱性封止材 ６ 貫通孔（スリット） ７ スナップピン ７−a ピン貫通孔 ８ ガラス板取付け凹所 ａ 突起（突条） DESCRIPTION OF SYMBOLS 1 Frame material 1-a Frame material main body 1-b Pressing edge 1-c, 1-d Vertical side 2 Fireproof glass plate 3 Holding metal fitting 3-a Holding piece 3-b Supporting piece 4 Heat resistant filler 5 Heat resistant sealing material 6 Through hole (slit) 7 Snap pin 7-a Pin through hole 8 Glass plate mounting recess a Projection (projection)
Claims (3)
に防火ガラス板を支持する構造において、対向する一対
の把持片を断面略Π型とした把持金具を、枠材のガラス
板取付け凹所に付設し、前記ガラス板周縁部を把持金具
の前記把持片により把持させ、両把持片とガラス板取付
け凹所の両縦辺間は耐熱性充填材を介在させてなり、前
記一方または双方の凹所の耐熱性充填材が加熱膨張性材
料であることを特徴とする防火ガラス板の支持構造。1. A structure in which a fire-resistant glass plate is supported by a heat-resistant frame material of a fire door or a fire window, a holding metal fitting having a pair of opposed holding pieces having a substantially Π-shaped cross section is provided with a glass plate mounting recess of the frame material. The glass plate peripheral edge portion is gripped by the gripping piece of the gripping metal, and a heat-resistant filler is interposed between both gripping pieces and both vertical sides of the glass plate mounting recess. A support structure for a fireproof glass sheet, wherein the heat-resistant filler in the recess is a heat-expandable material.
域に突起を付設したことを特徴とする請求項１記載の防
火ガラス板の支持構造。2. The support structure for a fireproof glass plate according to claim 1, wherein a projection is provided in a contact area of the glass piece of the gripping piece of the gripping metal.
するための耐熱性封止材を配設したことを特徴とする請
求項１記載の防火ガラス板の支持構造。3. The support structure for a fireproof glass plate according to claim 1, wherein a heat-resistant sealing material for sealing the glass plate mounting recess in the frame member is provided.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31719099A JP2001132352A (en) | 1999-11-08 | 1999-11-08 | Supporting structure for fireproof glass pane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31719099A JP2001132352A (en) | 1999-11-08 | 1999-11-08 | Supporting structure for fireproof glass pane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001132352A true JP2001132352A (en) | 2001-05-15 |
Family
ID=18085468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31719099A Pending JP2001132352A (en) | 1999-11-08 | 1999-11-08 | Supporting structure for fireproof glass pane |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001132352A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010133083A (en) * | 2008-12-02 | 2010-06-17 | Howa Mach Ltd | Glazed fire door |
| JP6174227B1 (en) * | 2016-12-01 | 2017-08-02 | 株式会社日鋼サッシュ製作所 | Fire door |
-
1999
- 1999-11-08 JP JP31719099A patent/JP2001132352A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010133083A (en) * | 2008-12-02 | 2010-06-17 | Howa Mach Ltd | Glazed fire door |
| JP6174227B1 (en) * | 2016-12-01 | 2017-08-02 | 株式会社日鋼サッシュ製作所 | Fire door |
| JP2018091000A (en) * | 2016-12-01 | 2018-06-14 | 株式会社日鋼サッシュ製作所 | Fire door |
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