JPH0913833A - Fire preventive metal frame for closable opening part - Google Patents

Abstract

PURPOSE: To improve fire preventing performance by disposing a fire preventive metal frame at the peripheral edge of a doorway opened and closed with a wooden fire door, and enclosing heat foaming material expanded onto the wooden fire door side, in the fire preventive metal frame. CONSTITUTION: A door stop part 102 protruded behind a wooden fire door 500 is provided at the periphery of an inner peripheral wall 101. In front of the door stop part 102, a door stop cushion rubber storage groove 103 is formed one round with the front side opened. In this case, door stop cushion rubber 105 is enclosed in the door stop cushion rubber storage groove 103, with a clearance to the bottom part of the storage groove 103, and heat foaming material 102 is filled in the clearance. When a fire is generated, the heat foaming material 120 is heated through a fire preventive metal frame 100 so as to foam and expand, thereby pushing out the door stop cushion rubber 105 toward the peripheral edge part side of the wooden fire door 500, and the heat foaming material is expanded in the clearance S1 so as to close the clearance S1. Flames and smoke can thereby be hindered from passing through from the doorway.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fireproof metal frame for an opening / closing opening provided with an opening / closing member such as a fireproof door or window, and more particularly to an opening / closing opening which can improve fireproof performance. Regarding a metal frame for fire protection.

[0002]

2. Description of the Related Art In recent years, a fire door having improved fire protection performance by combining various materials has been proposed by the remarkable technological development of new materials. One of them is a wooden fire door. This wooden fire door is already widely used overseas, especially in Western countries. A test method was established by designating one that has fire protection performance equivalent to or better than Class B fire doors. Therefore, in addition to the conventional steel fire door, it is a target of fire door.

The reason why wooden fire doors have been the subject of fire doors in Japan is the application of a new material, a foam material. 9 and 11 are cross-sectional views showing the main part of the wooden fire door 300. FIG. 9 is a front view of the wooden fire door 300 as shown in FIG. FIG. 11 is a view showing an upper end portion of the side cross section, that is, a C portion of FIG. 7 in a side cross section when cut vertically, and FIG. 11 is a diagram showing the wooden fire door 300 viewed from the front as shown in FIG. It is a figure which shows the opening-and-closing end part of the plane cross section, ie, FIG. 8D part, in a plane cross section when it cut | disconnects laterally like BB.

As shown in FIG. 9, the wooden fire door 300 is arranged between the upper end of the wooden fire door main body 310 and the end face plate 311 and between the lower end of the wooden fire door main body 310 and its end face plate. The heat-foamable material 320 is housed in, and as shown in FIG. 11, the heat-foamable material 320 is housed between both side ends of the wooden fire door body 310 and the end plates 313 and 314. With this configuration, when the wooden fire door 300 is heated due to a fire, FIG.
As shown in FIG.
13 and 314 are in close contact with the frame 410 of the opening / closing opening 400 provided with the wooden fire door 300, and close a small gap between the wooden fire door 300 and the frame 410 of the opening / closing opening 400. This can prevent the passage of flame or smoke.

[0005]

By the way, such a wooden fire door 300 has a property that its thermal conductivity is small because it is made of wood. Therefore, the heating foam 320 expands after a fire occurs. Therefore, there is a slight time difference between the wooden fire door 300 and the frame 410 of the opening / closing opening 400 being closed. The present inventors have conceived the present invention from the viewpoint that the fire protection performance can be further improved by reducing the time difference.

In view of the above circumstances, an object of the present invention is to provide a metal frame for fire protection of an opening / closing opening, which can improve fire protection performance.

[0007]

A fireproof metal frame for an opening / closing opening according to claim 1 is a fireproof metal frame for an opening / closing opening provided around an edge of the opening / closing opening opened / closed by an opening / closing member. In addition, the fire-preventing metal frame contains a heat-foamable material so as to expand toward the opening / closing member side.

According to a second aspect of the present invention, there is provided a fireproof metal frame having an opening / closing opening, wherein the opening / closing member is made of wood.

[0009]

The metal frame for fire protection of the opening / closing opening according to claim 1
When a fire occurs, the heated foam expands toward the opening / closing member, so that the gap between the frame and the opening / closing member can be closed. This can prevent the passage of flame or smoke. Further, since the frame is made of metal, heat can be quickly transferred to the heated foam material. Therefore, the time from the occurrence of a fire to the closing of the gap between the frame and the opening / closing member can be shortened.

Since the fireproof metal frame of the opening / closing opening according to the second aspect operates in the same manner as described above, the gap between the frame and the opening / closing member is closed when a fire occurs, as compared with the conventional wooden fire door. The time to can be reduced.

[0011]

An embodiment of the present invention will be described below with reference to the drawings. As shown in FIG. 6, a doorway 2 that is an opening / closing opening is formed in a wall body 1 of a building, and the doorway 2 has a rectangular shape. A metal frame 100 for fire protection is fitted to the edge of the doorway 2, and a wooden fire door 5 is installed in the metal frame 100 for fire protection.
00 is openably and closably attached via a hinge 3. The wooden fire door 500 is fireproofed.

FIG. 1 is a front view of the wooden fire door 500 shown in FIG. 6, which is a vertical sectional view taken along the line AA in the figure. C
FIG. 3 is a view showing a portion, and FIG. 3 is a plan view of a wooden fire door 500 viewed from the front as shown in FIG. It is a figure which shows an edge part, ie, FIG. 8D part.

As shown in FIGS. 1 and 3, a fire-preventing metal frame 1
00, a door stop 102 protruding rearward of the wooden fire door 500 is provided around the inner wall 101 of the door 00, and a door stop rubber storage groove 103 is opened forward in front of the door stop 102. It is formed around once. In the door-contact rubber storage groove 103, the door-contact rubber 105 is stored with a gap between the door-contact rubber storage groove 103 and the bottom of the door-contact rubber storage groove 103, and in the gap between the door-contact rubber 105 and the bottom of the door-contact rubber storage groove 103. Is filled with the heated foam material 120.
A graphite-based foam material is used as the heating foam material 120 in this embodiment.

Since the fire-prevention metal frame 100 and the like have the above-mentioned structure, when a fire occurs, the foam material 120 is heated through the fire-prevention metal frame 100 shown in FIG. 1 or 3. . Therefore, the heat-foamable material 120 can be heated more quickly than in the case where it is conventionally heated through the wooden material.

When the heated foam material 120 is heated, it foams and expands. Then, the door contact rubber 105 is extruded from the door contact rubber storage groove 103 toward the peripheral edge side of the wooden fire door 500, and the heating foam material 120 causes the peripheral edge portion of the wooden fire door 500 as shown in FIG. 2 or 4. And bulges into a gap S1 between the inner peripheral wall 101 of the fire protection metal frame 100 and closes the gap S1. This can prevent the flame and smoke from passing through the doorway 2.

Further, since the heated foam material 120 is heated more quickly than the conventional case where it is heated through a wooden material, the fire prevention metal frame 100 and the wooden fire door 500 are prevented from a fire. The time until the gap S1 is closed can be shortened more than ever before. Therefore, the fireproof performance can be improved.

In the above embodiment, the heated foam material 120 is housed in the rubber housing groove 103 for the door stop. However, as in the case of the metal frame 100A for fire protection shown in FIG. In FIG. 101, a heating foam material storage groove 130 is circumferentially formed at a position facing the peripheral edge of the wooden fire door 500, and the heating foam material 1 is placed in the heating foam material storage groove 130.
20 may be filled and the groove 130 may be closed by a metal lid 131. With this configuration,
In the event of a fire, the foam material 1 is heated through the fire protection metal frame 100.
20 is heated, the heated foam material 120 expands, and the gap S1 between the peripheral portion of the wooden fire door 500 and the inner peripheral wall 101 of the fire protection metal frame 100 can be closed. Therefore,
The time from the occurrence of a fire to the closing of the gap S1 between the metal frame 100 for fire protection and the wooden fire door 500 can be shortened compared to the conventional case, and the fire protection performance can be improved.

The structure in which the heat-foamable material storage groove 130 shown in FIG. 5 stores the heat-foamable material 120 is suitable for use in a metal frame having a portion without the door stop 102.

In the above embodiment, the wooden fire door 500 is used.
In the doorway 2 provided with the fireproof metal frame 100, 10 of the present invention.
Although the case where 0A is provided has been described, it is not necessarily the doorway 2 provided with the wooden fire door 500, and it is made of metal, plastic such as FRP, glass, ceramic, or any of the above plywood. The door may be a fire door, and further, the door 2 is not required to be provided, and an opening / closing opening may be a window or the like, and an effect similar to the above effect can be exhibited.

[0020]

According to the fireproof metal frame of the opening / closing opening of the first aspect, when a fire occurs, it is possible to prevent the passage of flame or smoke from the gap between the frame and the opening / closing member. it can. Further, since the frame is made of metal, the time from the occurrence of a fire to the closing of the gap between the frame and the opening / closing member is short, so that the fire protection performance can be improved.

According to the fireproof metal frame of the opening / closing opening of the second aspect, the time from the occurrence of a fire to the closing of the gap between the frame and the opening / closing member is reduced as compared with the conventional wooden fire door. Therefore, the fireproof performance can be improved.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a main part of an embodiment of a fire protection metal frame of the present invention.

FIG. 2 is a diagram showing a state in which a heated foam expands from a portion of the fire protection metal frame in FIG.

FIG. 3 is a plan sectional view showing a main part of an embodiment of a fire protection metal frame of the present invention.

FIG. 4 is a diagram showing a state in which the heated foam expands from the portion of the fire protection metal frame in FIG.

FIG. 5 is a sectional view showing another embodiment of the metal frame for fire protection of the present invention.

FIG. 6 is a front view showing a doorway provided with a wooden fire door.

7 is a cross-sectional view taken along the line AA of FIG.

8 is a sectional view taken along line BB of FIG.

FIG. 9 is a side sectional view showing a main part of a conventional wooden fire door.

FIG. 10 is a view showing a state where the heated foam expands from the portion of the wooden fire door of FIG.

FIG. 11 is a plan sectional view showing a main part of a conventional wooden fire door.

FIG. 12 is a view showing a state where the heated foam expands from the portion of the wooden fire door of FIG. 11.

[Explanation of symbols]

 2 ... Door (opening / closing opening) 100 ... Fireproof metal frame 100A ... Fireproof metal frame 120 ... Heat-foamed material 500 ... Wooden fire door (opening / closing member)

Claims (2)

[Claims] 1. A fire-prevention metal frame for an opening / closing opening provided around an edge of the opening / closing opening opened / closed by the opening / closing member, wherein the fire-prevention metal frame is expanded toward the opening / closing member side. A metal frame for fire protection of an opening / closing opening, which is characterized by containing a heated foam material. 2. The fire protection metal frame for the opening / closing opening according to claim 1, wherein the opening / closing member is made of wood.