JPH07238749A - Fire-resistant sash - Google Patents

Abstract

PURPOSE:To obtain a fire-resistant sash which prevents the increase of ambient temperature due to the thermal conduction from a building body in a fire and has a function absorbing the thermal expansion due to foaming in the intermediate layer of a fire-resistant glass arranged therein. CONSTITUTION:A frame body 2 provided with a recessed groove 2a in which the peripheral sides of a plate material 1 is inserted, at the inner peripheral face thereof, is composed of a frame core material 3 made of a steel with a nearly H-shaped section, an inorganic heat-insulating material 4 covering with the recessed groove 2a provided at the periphery of the core material 3, a first exterior material 5A covering from one opened edges of recessed groove 2a at the outer periphery of the inorganic heat insulating material to one side face, and a second exterior material 5B covering from the other opened edge of the recessed groove at the outer periphery of the inorganic heat insulating material 4 to the other side face. The plate material 1 is a superposed glass in which an intermediate layer 1c formed by a solution chiefly made of sodium silicate or the like for instance is interposed between plate materials 1a, 1b made of an ordinary plate glass.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a frame body used when arranging a plate material such as a plate glass in an opening of a general building, and particularly suitable for a fire resistant glass when the plate material is a refractory glass. It is about sex sashes.

[0002]

2. Description of the Related Art Conventionally, a fitting groove is formed on the inner peripheral surface of a metal frame at the opening of the wall surface of a general building, and the outer peripheral edge of the plate glass is inserted into the fitting groove. Although it is inserted to form a lighting window, if a fire occurs in the room,
It is dangerous because the plate glass melts due to flame or temperature rise in the surrounding atmosphere, or it breaks due to wind pressure and the fragments scatter around, and especially when glass is used for the lighting window. However, there is a problem that the resin layer burns to promote the spread of fire.

Under these circumstances, a laminated refractory glass provided with an intermediate layer containing sodium silicate as a main component has been developed. The middle layer of this refractory glass maintains transparency in normal times, but when heat is applied, it foams and forms a heat insulating layer, so it prevents the spread of fire and prevents the scattering of glass fragments in the event of a fire. There is.

However, if this type of refractory glass is also disposed in the above-mentioned ordinary frame, heat conduction from the metal frame causes the temperature of the surrounding atmosphere to rise,
Further, when the refractory glass is firmly fixed, there is a problem that when heat is applied over time, the risk that vapor will accumulate in the intermediate layer and destroy the plate glass of the outer layer cannot be avoided. there were.

[0005]

SUMMARY OF THE INVENTION The present invention has been made in view of the above reasons, and provides a fireproof sash having a heat shield function for preventing a temperature rise in the surrounding atmosphere due to heat conduction from a frame portion in the event of a fire. In addition, the present invention provides a refractory sash having a function of absorbing thermal expansion due to foaming of the intermediate layer of the refractory glass when the refractory glass is arranged.

[0006]

According to a first aspect of the present invention, there is provided a fireproof sash according to the first aspect of the invention, which is a frame body which is provided at an opening of a general building and has an inner peripheral surface provided with a concave groove into which a peripheral edge of a plate material is fitted. The body is composed of a frame core made of a steel material having a substantially H-shaped cross section, an inorganic heat insulating material which is provided by covering the outer periphery of the frame core material with the groove, and one opening edge of the groove on the outer periphery of the inorganic heat insulating material. The first exterior material that covers one side surface, and the second exterior material that covers the other side surface from the other opening edge of the concave groove on the outer periphery of the inorganic heat insulating material. The structure is the refractory sash according to claim 1, wherein a stress absorbing material made of a flexible inorganic heat insulating material is filled between the peripheral edge of the plate material fitted into the groove and the inner wall surface of the groove. .

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention which has achieved such an object will be described with reference to the drawings of the following embodiments.

FIG. 1 is a schematic sectional view of a fireproof sash according to claim 1 of the present invention, FIG. 2 is a schematic sectional view of a fireproof sash according to claim 2 of the present invention, and FIG. It is a schematic front view of a fireproof sash.

The refractory sash of the present invention is a general-purpose sash used for an opening of a general building as shown in FIG. The plate material 1 constituting the fireproof sash may be plate glass such as a single-layer float glass, a polishing plate material, a mold plate material, and a reinforced glass plate, but preferably a laminated structure fireproof glass plate is used. By using refractory glass, the refractory function is more effective, and in each of the embodiments of the present invention, the plate material 1 provided is a laminated refractory glass.

As shown in FIGS. 1 and 2, the plate member 1
Is a laminated glass which is adhered between a plate material 1a and a plate material 1b made of normal plate glass via an intermediate layer 1c formed of a solution containing sodium silicate as a main component, and the intermediate layer 1c. Not only does it have a fireproof function due to the foaming action during heating, but it also has the advantages of having a soundproofing function during normal times and being excellent in mechanical strength such as penetration resistance.

As shown in FIG. 1, a fireproof sash according to claim 1 of the present invention is a frame body 2 having an inner peripheral surface provided with a concave groove 2a into which the peripheral edge of the plate 1 is fitted. The frame body 2 includes a frame core material 3 made of a steel material having a substantially H-shaped cross section, an inorganic heat insulating material 4 which covers the outer periphery of the frame core material 3 with the groove 2a, and the inorganic heat insulating material 4. From the opening edge of the concave groove 2a on the outer periphery to the first exterior material 5A covering from one opening edge to one side surface, and from the other opening edge of the concave groove of the outer periphery of the inorganic heat insulating material 4 to the other side surface The gist is that it is composed of the second exterior material 5B that is covered over.

That is, the frame body 2 according to claim 1 is composed of a frame core material 3, an inorganic heat insulating material 4, a first exterior material 5A and a second exterior material 5B as shown in FIG. The thing
Among them, the frame core material 3 is formed as a member having a substantially H-shaped cross section by bonding a long steel material formed by a tapping screw 7 or the like to the side surface of a long steel material having a U-shaped cross section. It is a thing. As each of the steel materials, for example, iron or the like having high strength is used.

The inorganic heat insulating material 4 is made of a ceramic board or the like, and covers the outer periphery of the frame core material 3 in the state where the groove 2a into which the plate material 1 is fitted is formed. Incidentally, as in the embodiment, it is possible to use an inorganic heat insulating material 4 made of different material such as cement board on the bottom surface of the concave groove 2a.

The first exterior material 5A and the second exterior material 5B
Is composed of a pair of members having an L-shaped cross section, such as stainless steel and aluminum. 5B is covered in a state where the opening edge of the concave groove 2a for fitting the plate material 1 into the outer periphery of the inorganic heat insulating material 4 is formed.

That is, the first exterior material 5A and the second exterior material 5B are made of a metal material having the shape retaining function of the frame and the decorative function of the appearance. The first exterior material 5A is covered from one opening edge of the previously provided recessed groove 2a to one side surface of the inorganic heat insulating material 4 which is the indoor side, and the recessed groove previously provided in the inorganic heat insulating material 4 Two
By covering the second exterior material 5B from the other opening edge of a to the one side surface of the inorganic heat insulating material 4 which is the outdoor side,
Each exterior material 5A. Since the contact of 5B is blocked at any place through the inorganic material having a high heat insulating effect, it is possible to generate a heat shielding effect indoors or outdoors.

After the plate material 1 is fitted into the groove 2a of the frame body 2, the opening edge of the groove 2a and the plate material 1 of the groove 2a.
A fire-resistant sealant 8 is applied between and. At this time, the edges of the first exterior material 5A and the second exterior material 5B are insulated so as not to come into contact with the plate material 1.

The fireproof sash according to claim 2 of the present invention is the fireproof sash according to claim 1, as shown in FIG. 2, in which the plate material 1 fitted in the groove 2a is inserted. The gist is that the stress absorbing material 6 made of a flexible inorganic heat insulating material is filled between the peripheral edge and the inner wall surface of the concave groove 2a.

That is, the refractory sash described in claim 2 is fitted into the concave groove 2a formed in the inner peripheral surface of the frame body 2 on the basis of the same constitution as the refractory sash described in claim 1. Plate material 1, more specifically, a plate material 1 forming an outer layer of the plate material 1.
a. The stress absorbing material 6 made of a flexible inorganic heat insulating material such as ceramic fiber is filled between the peripheral edge of the groove 1b and the inner wall surface of the groove 2a.

[0019]

The function of the groove 2 of the frame body 2 which constitutes the fireproof sash of the present invention
As in the embodiment shown in FIGS. 1 and 2, it is preferable to dispose a plate material 1 made of fireproof glass having a laminated structure in a.

When a fire or the like occurs in the interior of the daylighting window constructed as described above, first, heat is applied to one plate member 1a on the indoor side of the plate member 1 to foam the intermediate layer 2 to form a heat insulating layer. To be done. At this time, heat is also applied to the first exterior material 5A which is the outermost layer on the indoor side of the frame body 2, but the heat is conducted to the second exterior material 5B which is the outdoor side by the plate material 1 and the inorganic heat insulating material 4 so much. Never.

Next, since the intermediate layer 1c is foamed to form a heat insulating layer, the plate materials 1a. 1b are respectively extruded outwardly, so that the plate material 1 becomes thicker,
a. Since the stress absorbing material 6 made of a flexible inorganic heat insulating material such as ceramic fiber is filled between the peripheral edge of the groove 1a and the inner wall surface of the groove 2a, the plate material 1 having a width substantially equal to that of the groove 2a is filled. The thermal expansion is alleviated.

[0022]

As described above, in the fireproof sash of the present invention, the steel material is covered with the inorganic heat insulating material without being exposed, and the metal material covering the steel material is in contact with the plate material via the sealant. Since there is no heat insulation between the indoor side and the outdoor side, and it has excellent heat insulation, it is not only between the peripheral edge of the plate material inserted into the groove and the inner wall surface of the groove. Since the flexible inorganic heat insulating material is filled, when the refractory glass is provided, the thermal expansion due to the foaming of the intermediate layer of the refractory glass can be absorbed to prevent the breakage of the plate material. Therefore, by arranging the fireproof sash and the fireproof glass of the present invention in the opening of a general building, it is an epoch-making and meaningful invention that can enhance the fireproof property and the safety synergistically.

[0023]

[Brief description of drawings]

FIG. 1 is a schematic sectional view of a fireproof sash according to claim 1 of the present invention.

FIG. 2 is a schematic sectional view of a refractory sash according to claim 2 of the present invention.

FIG. 3 is a schematic front view of the fireproof sash of the present invention.

[0024]

[Explanation of symbols]

 1 plate material 1a plate material 1b plate material 1c middle layer 2 frame body 2a concave groove 3 frame core material 4 inorganic heat insulating material 5A exterior material 5B exterior material 6 stress absorbing material 7 tapping screw 8 sealant

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Kenji Ogura 2-6-15 Shiba Park, Minato-ku, Tokyo

Claims (2)

[Claims] Claim: What is claimed is: 1. A frame body, which is disposed in an opening of a general building and has an inner peripheral surface provided with a concave groove into which a peripheral edge of a plate material is fitted, wherein the frame body is made of a steel material having a substantially H-shaped cross section. Core material,
An inorganic heat insulating material that covers the outer periphery of the frame core material by providing the concave groove, and a first exterior material that covers from one opening edge of the concave groove of the outer periphery of the inorganic heat insulating material to one side surface, A refractory sash, comprising a second exterior material covering from the other opening edge of the concave groove on the outer periphery of the inorganic heat insulating material to the other side surface. 2. The refractory sash according to claim 1, wherein a stress made of a flexible inorganic heat insulating material is provided between the peripheral edge of the plate member fitted into the groove and the inner wall surface of the groove. A fireproof sash that is filled with an absorbent material.