JPH0810645Y2 - Fireproof ash - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention is directed to a window facing a partition wall of a building or the like in order to prevent the spread of fire due to a fire in a special room such as a fireproof compartment or a computer room. The present invention relates to a fireproof sash provided in an opening such as a door.

(Prior art) Conventionally, the spread of fire in a fireproof compartment of a building or a special room such as a computer room is prevented by a fireproof sash or door provided in a window or other opening facing the partition wall of the room. are doing.

The sashes and doors of the fireproof structure are designed to have a predetermined fireproof performance mainly by steel members, fireproof glass, incombustible materials and the like.

As the fireproof glass used for the sashes and doors, meshed glass, crystallized glass, foamable glass and the like are used.

(Problems to be solved by the invention) However, when a non-combustible metal material such as steel, aluminum or stainless steel is used for the brush or door, it has high thermal conductivity and melts when exposed to flame for a long time. In some cases, the fire will spread to the next room.

Further, the netted glass and the crystallized glass used as the fire-resistant glass can prevent the glass from scattering and falling off, but have poor heat-shielding properties, and are composed by bonding a plurality of glasses with a transparent water glass-based foam material. , The transparency is high at room temperature, the foam material becomes cloudy when heated by a fire or the like, and the foamable glass configured so that the heat insulating effect is generated has good heat shielding performance, but cracks due to heat, There is a fear of falling out.

The present invention has been proposed in view of the above problems of the prior art, and the object of the present invention is to provide an opening or the like facing a partition wall of a building such as a fireproof compartment or a computer room, The point is to provide a sash with a fire resistant structure that withstands a long flame in a fire and has an excellent heat shielding effect.

(Means for Solving the Problem) In order to achieve the above-mentioned object, the fireproof sash according to the present invention has an outer peripheral surface of a main frame formed of a noncombustible material coated with an inorganic fireproof material, and the outer peripheral surface of the same coated material. To the inner surface of the sash frame where the decorative frame is arranged via the air layer, to the outer surface of the intermediate foam glass formed by adhering a plurality of transparent glass plates with a water glass foam material, through the air layer A composite glass in which front and back glass plates are arranged is fitted, and an air pressure adjusting valve is mounted on the glass plate.

(Operation) In the fireproof sash according to the present invention, the outer peripheral surface of the main frame made of non-combustible material is coated with the inorganic refractory material, and the air layer is provided between the fireproof material and the outer peripheral decorative frame. The heated side and the opposite side of the sash frame are effectively shielded.

Further, a water glass-based foam material obtained by temporarily preventing fire by a glass plate disposed on the outside of the composite glass fitted to the inner surface of the sash frame, and further adhering a transparent glass plate in an intermediate glass layer of the composite glass. Foams by heating and blocks heat.

Further, the heat shield effect is further enhanced by the air layer provided between the outer glass plate and the intermediate foam glass.
If the air layer expands too much due to heating at the time of fire, the air pressure of the air layer is adjusted by the air pressure adjusting valve mounted on the glass plate to prevent the intermediate glass layer from being deformed or cracked. It

(Embodiment) The present invention will be described below with reference to the illustrated embodiment.

(A) is a sash frame, and a hollow main frame (1) made of non-combustible material such as fiber reinforced cement material using carbon fiber, glass fiber, aramid fiber, steel fiber, etc. is assembled to the outer dimension of the opening. The main frame (1) is covered with an inorganic refractory material (2) made of a calcium silicate plate or the like on both the inner peripheral surface and both the front and back outer surfaces, and the outer peripheral surface of the refractory material (2) has an air layer in the middle. The decorative frame (4) is covered so that (3) is interposed.

(B) is a composite glass, a plurality of transparent glass plates (5a)
(5b) A mesh glass plate (9) or crystalline glass on both the front and back sides of an intermediate foam glass (7) obtained by adhering (5c) with a water glass foam material (6) through an air layer (8), It is composed by combining float laminated glass, glass plate with wire, etc.
The composite glass (B) is fitted in a groove groove formed on the lower surface of the inorganic refractory material (2).

In the figure, (10) is a non-combustible silicon caulking material, (11)
Is a spacer that maintains the glass interval.

Further, the air layer (8) is formed on the meshed glass plate (9).
An air pressure adjusting valve (C) for adjusting the air pressure of is installed.

The air pressure regulating valve (C) is connected to the air pressure regulating valve chamber (12), which penetrates through the meshed glass plate (9) and faces the air layer (8), and is connected to the chamber (12). The valve rod (14a) of the adjusting valve (14) built in the valve chamber (12) has a T-shaped outer shell that is formed of an exhaust chamber (13) that collides with the meshed glass plate (9). The tip end valve body of the valve rod (14a) (which is slidably inserted in the partition wall with the exhaust chamber (13) and is normally wound by the bullet (14a) wound on the valve rod (14a). 14b) is configured to close the tip air supply opening of the air pressure control valve chamber (12).

Further, an air circulation hole (16) is provided in a partition wall between the air exhaust chamber (13) and the valve chamber (12), and the air exhaust chamber (1
An exhaust hole (17) is provided in 3). (See FIG. 3A) In the figure, (18) and a threaded portion provided on the outer peripheral surface of the valve chamber (12) are screwed to (12a), and the air pressure adjusting valve (C) is attached to the meshed glass plate (9). ) Is a holding plate fixed to.

The air pressure adjusting valve (C) is attached to the upper part of the meshed glass (9) as shown in FIG. 2, but the number of attachments depends on the capacity of the air layer (3) and the adjusting valve (C). It is selected according to the size.

In the illustrated embodiment, as described above, the sash frame (A) is used.
The main frame (1) is made of a non-combustible hollow fiber reinforced cement material with low heat conductivity, the outer periphery of the main frame (1) is covered with an inorganic fireproof material (2), and the fireproof material (2) Since the air layer (3) is provided between the decorative frame (4) and the decorative frame (4), the sash frame (A) portion exhibits a heat shielding effect in case of fire.

Further, in the composite glass (B) portion, the outermost glass glass plate (9) is used for fire protection, and the water glass foam material (6) is foamed by heating in the middle foam glass (7) portion, Shields heat.

Further, the heat shielding effect is exerted by the air layer (8) interposed between the reticulated glass plate (9) and the foam glass (7), but the air in the air layer (8) is excessively heated by heating. When expanded, the air pressure control valve (C) prevents the foamed glass (7) from being deformed or cracked.

That is, in the state shown in FIG. 3A, when the air in the air layer (8) expands due to a fire, the regulating valve (14) causes the bullet (1)
The air in the air layer (8) enters the valve chamber (12) through the tip air supply opening (12a) through the air circulation hole (16) by retreating outward against the urging force of 5). Air layer (8) by entering the exhaust chamber (13) and being discharged from the exhaust hole (17)
The pressure is adjusted to prevent the foam glass (7) from cracking or deforming. (See FIG. 3B) FIGS. 4A and 4B show another embodiment of the air pressure regulating valve (C), in which a shape memory alloy (15 ') is used as an activating member instead of the ammunition machine (15). in use.

In the figure, the same parts as those of the embodiment shown in FIGS. 3A and 3B are designated by the same reference numerals.

(Effect of the Invention) As described above, the fireproof sash according to the present invention includes a sash frame in which an air layer is interposed between the inorganic fireproof material coated on the outer peripheral surface of the main frame made of noncombustible material and the decorative frame. , A fire is formed by the composite glass consisting of a pair of outer glass plates and an intermediate foamed glass arranged with an air layer in the middle, and an air pressure control valve mounted on the glass plate. When the sash has a fire-resistant structure that can withstand the flame for a long period of time by preventing or delaying the heat conduction between the surface to be heated and the surface opposite to the surface at the time, the building section with the fire-resistant sash is arranged. It protects rooms and rooms from disasters caused by fire.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view of a main part of a fireproof sash according to the present invention, FIG. 2 is a front view thereof, and FIGS. 3A and 3B are views of an embodiment of an air pressure adjusting valve, respectively, in normal operation. FIG. 4A and FIG. 4B are vertical side views showing a state, respectively, showing a state of the other embodiment of the air pressure regulating valve in normal operation and in operation. (A) ... brush frame, (B) ... composite glass, (C) ...
… Air pressure control valve, (1) …… Main frame, (2) …… Inorganic refractory material, (3) …… Air layer, (4) …… Decorative frame, (5a)
(5b) (5c) …… Transparent glass plate, (6) …… Water glass foam material, (7) …… Foam glass, (8) …… Air layer,
(9) …… A glass plate with nets.

Claims (3)

[Scope of utility model registration request] Claims: 1. A main frame made of non-combustible material, the outer peripheral surface of which is coated with an inorganic refractory material, and the outer peripheral surface of the main material is covered with a decorative frame via an air layer. On the outer surface of the intermediate foamed glass obtained by adhering the transparent glass plate of the water glass type foam material, the composite glass formed by arranging the front and back one glass plate through the air layer is fitted, and the glass plate is A fire resistant sash that is equipped with an air pressure control valve. 2. The air pressure control valve includes an air pressure control valve chamber that penetrates the glass plate and has a tip facing the air layer, and an exhaust chamber that communicates with a base end of the air control valve chamber. It has a shell main body, and the air regulating valve chamber has a built-in valve which operates in response to the temperature rise of the air layer and is configured to flow out air through the air regulating valve chamber and the exhaust chamber. The fireproof sash according to claim 1. 3. The fireproof sash according to claim 1, wherein the main frame is formed of a fiber reinforced cement material.