JP2000282762A - Fire-resisting member for fire-resisting sash - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fire-resisting member for a fire-resisting sash capable of preventing the passing through of fire flame during a fire and also maintain the strength of wired glass with time. SOLUTION: In a fire-resisting member 8 to be equipped between a wired glass plate 2 and a style 21 around the glass or a frame 11, a non-combustible fiber member 18 is covered by a non-water-permeable material 28, and water content invading the wired glass plate 2, its surrounding style 21 or frame 11 as a result of storm or dew condensation cannot be absorbed by a fiber member 18 because the moisture is blocked by non-water-permeable material 28, thereby maintaining dry condition for fiber member 18 without corroding wires 2a in the wired glass plate 2.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fire-resistant sash for preventing a flame from burning out between a glass plate and a frame around the glass plate in a fire.

[0002]

2. Description of the Related Art In applying a sash to a building,
Fire protection performance against fires is required by the Building Standards Law and the same ordinance, etc., and the fire from inside the building is kept to a minimum and is not emitted outside. In order to do this, the use of "A-class or B-class fire doors" is required at specified locations within the quasi-fire protection area. In the fire test of the type B fire door, as shown in FIG. 3, the specimen A ′ (sash) was fixed to the wall opening 100 of the high-temperature furnace, and the flame 101 was radiated for 800 minutes in 20 minutes.
° C, and no flame is generated on the back side of the heating surface.
It is necessary to prepare two specimens and clear one specimen A ', and also to clear the other specimen A' with the heated surface and the impact surface replaced. By the way, in the sash, a glass plate is fitted into the upper, lower, left and right frames via beads made of an elastic material, and the opening and closing windows configured to open and close this frame in the upper, lower, left and right frames, and in the upper, lower, left and right frames There is a fitting-killing window or the like configured so that a glass plate cannot be opened and closed by directly fitting a glass plate through a bead made of an elastic material. Conventionally, a fire prevention sash uses fire prevention glass such as netted glass for a glass plate.Also, even if the beads are carbonized and deteriorated by the fire prevention test and fall off, the flame does not burn around the glass plate. A fire-resistant member is provided between the glass plate of the opening and closing window and a frame around the window or between the glass plate and the frame of the above-mentioned fitted-in window. As described in "Japanese Law Publication"), non-combustible fiber members such as ceramic fibers are sandwiched between a glass plate and a surrounding frame or frame.

[0003]

However, the above-mentioned conventional refractory member absorbs the moisture (night dew, etc.) that has entered between the glass plate and the surrounding frame or frame due to dew condensation or wind and rain. The absorbed water may corrode the metal net constituting the netted glass.
That is, even if a small amount of water enters the frame, the refractory member is made of fibrous material, so that it easily absorbs and accumulates water,
There is a concern that the contact with the moisture may corrode the mesh of the meshed glass and weaken the strength of the glass plate.

The present invention has been made in view of the above-mentioned conventional circumstances, and its object is to prevent the flame from escaping in the event of a fire and to reduce the strength of the netted glass over time. An object of the present invention is to provide a refractory member for a fire sash that can be maintained.

[0005]

According to a first aspect of the present invention, there is provided a fireproof member provided between a netted glass sheet and a frame or frame around the glass sheet. The gist of the present invention is that the conductive fiber member is covered with a water-impermeable material. In claim 1, the impermeable material is
Means a sheet-like or film-like member that does not allow moisture to permeate, specifically, a resin sheet or an aluminum foil can be used, as long as it can cover the entire outer peripheral surface of the fiber member. Or may be divided into a plurality. The means for coating the outer periphery of the fiber member with the water-impermeable material may be such that the non-water-permeable material is adhered to the outer periphery of the fiber member via an adhesive, The parts may be overlapped and adhered. The gist of the present invention is that the fiber member is covered with the non-water-permeable material in a compressed state, and the non-water-permeable material is made of a thermoplastic member. Here, the means for covering the fiber member with the non-water-permeable material in a compressed state is, for example, wrapping the fiber member with a non-water-permeable material while compressing, or forming the non-water-permeable material into a bag shape After filling the fiber member inside, or after wrapping the fiber member with a non-water-permeable material, a suction nozzle is inserted into the non-water-permeable material to suck the air inside, and the refractory member is vacuum-packed. Can be achieved. Claim 2
In the non-water-permeable material, it is said that the non-water-permeable material is made of a thermoplastic member, and the non-water-permeable material made of a sheet-like or film-like member that does not allow moisture to permeate when the sash receives flame radiation. This means that it is formed of a member that melts, and can be achieved by, for example, forming the non-water-permeable material with a thermoplastic resin film.

According to the above technical means, the present invention has the following effects. (Claim 1) A non-water-permeable material is used to prevent moisture that has entered between the meshed glass plate and the surrounding frame or frame due to condensation or wind and rain from being absorbed by the fiber member, and the fiber member is dried. To maintain. In addition, the moisture that has invaded between the glass plate and the surrounding frame or frame is originally a very small amount, so if it does not accumulate in the fiber member as in the case of a conventional fire-resistant member, it naturally evaporates or Since the water drops easily from a small gap between the sash members or is drained by providing a small hole in a frame or a frame, the net of the net glass is not corroded. (Claim 2) Further, since the non-water-permeable material is made of a thermoplastic member, when the sash receives a flame, the non-water-permeable material is melted by the heat and the fiber member expands. Closes the space between the netted glass plate and the surrounding frame or frame tightly without any gap.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a fire protection sash A to which the fireproof member according to the present invention is applied, and FIG. 2 shows the fireproof sash. The fire protection sash A has a double glass structure including sash bars 1 such as upper and lower right and left frames 11, upper and lower left and right frames 21, and ridges 31, an outer netted glass plate 2 and an inner glass plate 3, and a fireproof member 8. And is fixed to the opening 10 of the building.

[0008] The sash bar 1 is a pultruded member obtained by reinforcing an FRP material with glass fiber or carbon fiber.
1, each of the frame 21 and the ridge 31 is formed in a long shape having a predetermined sectional shape. The material of these sash bars 1 is F made of an unsaturated polyester resin as a matrix.
RP to which a flame retardant aid is added. There are various types of flame retardant aids. In the present embodiment, aluminum hydroxide that does not generate toxic gas during combustion is added. In addition, the material of the sash bar 1 is not limited to the above-mentioned FRP, but may be a metal material such as aluminum.

The outer meshed glass plate 2 is fireproof glass having a metal mesh 2a inside, and the inner glass plate 3
Is a common plate glass (float glass) having no net 2a. These two glass plates 2 and 3 are inserted into the upper, lower, left and right frames 21 at a predetermined interval by interposing the spacer 6 therebetween, and the setting provided at both ends in the lower frame 21 is provided. It is placed on a block (not shown) and fixed by pressing the upper and lower sides from the room X side with a ridge 31. At this time, the outer surfaces of these two glass plates 2 and 3 and the frame 21 and the inner surface and the ridge 31
Bead 7 made of flame-retardant chloroprene rubber
, It is elastically pressed down without any gap.

The refractory member 8 is formed by covering the outer periphery of the fiber member 18 with a water-impermeable material 28, and between the peripheral ends of the two glass plates 2 and 3 and the inner surface of the frame 21 on each of the upper, lower, left and right sides. To prevent the flame from passing through even if the bead 7 is carbonized and dropped during a fire.

By the way, the above-mentioned two glass plates 2, 3
The space between the peripheral end of the frame and the inner surface of the frame 21 is generally referred to as a “glass swallowing part”, regardless of whether the refractory member 8 is inserted or not, for the following two purposes. Is provided.
One of the purposes is to prevent the glass plate from breaking when an earthquake occurs, that is, when an earthquake occurs, the window frame is deformed in a parallelogram shape. However, glass plates 2, 3
May be broken by receiving an external force from the surrounding frame 21 because it remains a square. Therefore, the glass swallow unit
The space absorbs the distortion of the frame 21 so that the glass plates 2 and 3 do not receive external force. The other purpose is to prevent the end of the glass plate or the lower frame 21 due to condensation or wind and rain.
The water that has penetrated into the inside is received by the glass swallowing section and drained from a plurality of small holes a formed at appropriate intervals on the bottom surface of the glass swallowing section (inside the lower frame 21). is there.

The fiber member 18 is a member having a rectangular cross section formed by forming ceramic fibers corresponding to the respective lengths of the upper, lower, left and right frames 21. The gap between the end portion and the inner surfaces of the upper, lower, left and right frames 21 is elastically closed. The material of the fiber member 18 is not limited to the ceramic fiber, but may be another material as long as it is nonflammable and elastic, such as glass wool.

The impermeable material 28 is formed of a resin sheet that does not allow moisture to permeate. As shown in FIG. 2, a long portion 28a around which the body portion of the fiber member 18 is wound, and a both-end closing portion 28b for closing both end portions of the fiber member 18, are formed by the long portion 28a and the both-end closing portion 28b. May be integrated or divided. This impermeable material 28
Is adhered to the inside through an adhesive so as to cover the entire outer peripheral surface of the fiber member 18 to prevent moisture from permeating into the fiber member 18 from the outside.

Airtight members 9 made of flame-retardant silicone rubber are provided on each of the indoor X side and the outdoor Y side between the upper, lower, left and right frames 21 and the upper, lower, left and right frames 11. The airtight members 9, 9 are airtightly double between the frame 21 and the frame 11.

Next, the operation of the refractory member 8 having the above configuration will be described. With the fire-resistant sash A fixed to the opening 10 of the building, the fire-resistant member 8 is formed in the space between the outer netted glass plate 2 and the inner glass plate 3 and the surrounding frame 21 by wind and rain or condensation. The impregnated moisture is prevented from being absorbed by the fiber member 18 by the water impermeable material 28. Since the moisture generated by the condensation is originally a very small amount and does not accumulate in the fiber member 18, it naturally evaporates, flows down from a minute gap between the members of the fire protection sash A, or lowers. It easily disappears such as being drained from a small hole a formed in the frame 21 of the frame 21 and does not cause corrosion of the net 2a in the netted glass plate 2. In addition, when the fire protection sash A was used as the specimen A ′ and the fire test of the type B fire door described above was performed, the fire protection sash A was fixed to the wall opening 100 of the high temperature furnace as shown in FIG. However, even if the beads 7 are carbonized and fall off due to carbonization, the refractory member 8 blocks the flame 101, so that the flame 101 does not burn out on the back side of the heating surface. The refractory member 8 prevents the flame 101 from being burned out by the nonflammable fiber member 18 even if the non-permeable member 28 is burned off.

Further, the fire prevention sash A is an example in which the fireproof member 8 according to the present invention is applied to a hinged door. However, like the fire prevention sash B shown in FIG. 3 is inserted directly into the upper, lower, left and right frames 11 ', and
The fireproof member 8 according to the present invention is attached to the fitting window held down by 1
May be applied, and in this case, the same operation as described above is achieved. In this fire prevention sash B, the frame 11 'is formed in a shape in which the frame 11 and the frame 21 in the fire prevention sash A are integrated,
The other parts have basically the same configuration as that of the fire protection sash A. Therefore, the same reference numerals are given to the same parts, and redundant description will be omitted.

Next, a description will be given of a refractory member 8 'according to another embodiment of the present invention. As shown in FIG. 5, the fire protection sash C to which the fire protection member 8 'is applied is configured by replacing the fire protection member 8 of the above fire protection sash A with a fire protection member 8'. Therefore, duplicate description will be omitted.

The refractory member 8 'is formed by wrapping a fibrous member 18' of the same material as that used for the refractory member 8 with a non-permeable member 28 'while compressing the fiber member 18'.
In the space between the frame 3 and the frame 21 therearound, a gap is formed around the frame.

The water impermeable material 28 'is made of a thermoplastic resin film that is melted by heat generated when the sash receives a flame.

Since the fireproof member 8 'has a gap H between the two glass plates 2 and 3 inside the lower frame 21 during normal use of the fireproof sash C, dew condensation occurs. The water generated by the above-described method easily flows downward, and therefore, the net 2a of the netted glass plate 2 is hardly corroded. Then, the water that has flowed downward is released from the small holes a in the bottom surface of the frame 21. In the event of a fire, the impermeable material 28 'is melted by heat and the fiber member 18' expands, so that the space between the meshed glass plate 2 and the surrounding frame 21 is tightly closed without any gap, and the flame More reliably prevent burnout.

In the fire sashes A to C of the above-described embodiment,
Although it was a double glass structure composed of netted glass and float glass, the present invention is not limited to this structure, and a double glass structure in which both glass plates are both netted glass, or
A sash having a single glass structure made of one screened glass may be used. That is, if at least one glass plate is a netted glass, this one glass plate can withstand the thermal shock of a flame and the impact of a sand bag,
For example, if one of the two glass plates is a float glass, even if the float glass is broken by a thermal shock, the other netted glass withstands the thermal shock of a flame on the glass surface and the impact of a sand bag. .

[0022]

Since the present invention is configured as described above, it has the following effects. (Claim 1) A water-impermeable material is used to prevent moisture generated due to dew condensation or the like from entering between the glass plate with the mesh and a frame around the mesh plate, so that the fiber member is kept dry. Therefore, the net of glass with a net does not corrode. Therefore, it is possible to provide a fireproof sash refractory member capable of preventing the flame from burning out at the time of fire and maintaining the strength of the netted glass over time. (Claim 2) Further, the fiber member is covered with the non-water-permeable material in a compressed state, and the non-water-permeable material is formed of a thermoplastic member. The impervious material melts and the fiber member expands, and the expanded fiber member closes the space between the meshed glass plate and the surrounding frame or frame tightly without any gaps. Dropout can be more reliably prevented. Moreover, by compressing the fiber member, in the space between the netted glass plate and the surrounding frame or frame, if a gap is formed around the refractory member, during normal use of the sash, Since the water generated due to dew condensation or the like is easily flowed downward due to the gap, the net of the netted glass plate is hardly corroded.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an example of a fire protection sash to which a fireproof member according to the present invention is applied.

FIG. 2 is a perspective view showing an example of a refractory member according to the present invention.

FIG. 3 is a longitudinal sectional view showing a fire prevention test of a sash.

FIG. 4 is a longitudinal sectional view showing another example of a fire protection sash to which a fireproof member according to the present invention is applied.

FIG. 5 is a longitudinal sectional view showing another example of a fire protection sash to which a fireproof member according to the present invention is applied.

[Explanation of symbols]

 2: Glass plate with net 8: Fire resistant member 11: Frame 21: Frame 18: Textile member 28: Non-permeable material A, B: Fire sash

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Hiroto Takahashi 2-1 Egan-shi vs. Geese Hokkaido Electric Power Company Research Institute (72) Inventor Kazuhiro Nishida Ebetsu-shi vs. Geese 2-1 Hokkaido Electric Power Company General Research In-house (72) Inventor Yutada Hyakushima 2-13-15 East Coast South, Chigasaki-shi, Kanagawa (72) Inventor Kazuhiro Matsuki 2-5-4 Toranomon, Minato-ku, Tokyo Dot Corporation (72) Invention Person Fukurahiko Ogura 3-6-202 Kagurazaka, Shinjuku-ku, Tokyo F-term (in reference) 2E039 BA08

Claims (2)

[Claims] 1. A fireproof member for a fireproof sash, wherein a fireproof member is provided between a netted glass sheet and a frame or frame around the fireproof member. . 2. The fireproof sash according to claim 1, wherein the fiber member is covered with the non-permeable member in a compressed state, and the non-permeable member is made of a thermoplastic member. Fire resistant material.