JPH0552075A - Fire-resistant door - Google Patents

Abstract

PURPOSE:To prevent the occurrence of the through-burning of a door even if a fire is concentrated on the door when the fire breaks out by sticking heat conducting plates to the door made of wood. CONSTITUTION:A frame 6 is assembled with stiles 6a and rails 6b, and heat conducting plates 2 are laminated on a door 1 over four corners of the members constituting the wood door 1 inserted with a panel 7 in the frame 6. The heat conducting plates 2 are made of a metal plate and the like with the heat conductivity higher than that of wood, they are formed into various shapes such as a triangle or a rectangle, and they are stuck on the surface of the door 1 or buried in the members of the door 1. The high heat due to a fire when the fire breaks out is transferred to the plane direction of the door 1 by the heat conducting plates 2, local heat concentration is avoided, and the through-burning of the door 1 and the generation of gaps at the connection sections of the members are prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wood-based fireproof door.

[0002]

2. Description of the Related Art Although metal doors have excellent fire resistance,
Due to the cold appearance peculiar to metal and the heavy weight, doors made of wood have been generally used. And it is generally understood that wood burns easily, but in reality, it can withstand a fire for a short time and is used as a fire-resistant door that shuts off the flame and prevents burning. It is also possible.

[0003]

However, when a flame locally acts on a door made of wood, a local temperature rise occurs due to partial concentration of heat, and the burnout occurs at this location in a short time. May occur, and flame or smoke may enter through the holes created by the burnout, and the flame or smoke may not be blocked. Also, when flame acts on the joints of the members that make up the door, such as the joints between the vertical and horizontal frames that make up the frame of the door, and the joints between the frame and the door face plate, the joints will contract due to the contraction of each member. There is a risk that a gap will be created in the space, and flame or smoke will enter through this gap, making it impossible to block the flame or smoke. Further, although metal parts such as door knobs and hinges are attached to the door, if the metal parts are exposed to heat during a fire, the metal parts become extremely hot and there is a risk that the door will burn through at this part. There was also a problem.

The present invention has been made in view of the above points, and an object of the present invention is to provide a wood-based fireproof door capable of effectively preventing flames and smoke by preventing burnout and the like. It is what

[0005]

A fire resistant door according to the present invention is characterized in that a heat conducting plate 2 is laminated on a door 1 made of wood.

[0006]

[Function] Even if a flame or a high temperature locally acts on the door, the heat is prevented from being dissipated by the heat conducting plate and causing a burnout or a gap between the members constituting the door. You can

[0007]

EXAMPLES The present invention will be described in detail below with reference to examples. Figure 1
Shows an embodiment of the present invention. For example, in the door 1, the frame frame 6 is composed of a vertical frame 6a and a horizontal frame 6b and the frame frame 6 is formed.
It is made by fitting a face plate 7 such as a mirror plate inside, and the frame frame 6 and the face plate 7 are made as a wooden door 1 using wood. Then, the heat conducting plate 2 is stretched by being laminated on the door 1 so as to straddle each member constituting the door 1 such as the vertical frame 6a, the horizontal frame 6b of the frame frame 6 and the face plate 7. In the embodiment shown in FIG. 1, the heat conducting plate 2 is formed in a triangular shape, and the vertical frames 6 are provided at the four corners of the door 1.
It is stretched so as to straddle a, the horizontal frame 6b, and the face plate 7. When the heat conducting plate 2 is stretched on the door 1 in this way,
As shown in (b), the vertical frame 6a, the horizontal frame 6b, and the surface of the face plate 7 may be adhered and laminated on the surface of the door 1,
Alternatively, as shown in FIG. 1C, it may be embedded in the vertical frame 6a, the horizontal frame 6b, or the face plate 7 so as to be stretched inside the door 1. In the embodiment shown in FIG. 1 (b), a concave step portion 8 is provided on the surface of the vertical frame 6a, the horizontal frame 6b, and the face plate 7, and the heat conducting plate 2 is fitted into the concave step portion 8 so that the surface of the door 1 and the heat The surface of the conductive plate 2 is flush with the surface. Moreover, FIG.
In the embodiment of (c), the slits 9 are provided in the vertical frame 6a, the horizontal frame 6b and the face plate 7, and the heat conducting plate 2 is fitted into the notches 9 to mount the heat conducting plate 2 in the door 1. Is done.

FIG. 2 shows another embodiment of the present invention, in which the heat conducting plate 2 is formed in a rectangular shape, and left and right vertical frames 6a and horizontal frames 6b are provided at the upper and lower ends of the door 1, respectively. It is stretched so as to straddle the face plate 7. When the heat conducting plate 2 is stretched on the door 1 in this way, as shown in FIG. 2B, the heat conducting plate 2 is adhered to the surface of the vertical frame 6a, the horizontal frame 6b and the face plate 7 and laminated on the surface of the door 1. Alternatively, as shown in FIG. 2C, it may be embedded in the vertical frame 6a, the horizontal frame 6b, or the face plate 7 so as to be stretched inside the door 1.

FIG. 3 shows still another embodiment of the present invention, in which the heat conducting plate 2 is formed in a "b" shape, and the left and right vertical frames 6a and the upper and lower horizontal frames are provided at the peripheral portion of the door 1, respectively. Frame 6b
It is stretched so as to straddle the face plate 7. When the heat conducting plate 2 is stretched on the door 1 in this manner, as shown in FIG. 3B, the heat conducting plate 2 is adhered to the surfaces of the vertical frame 6a, the horizontal frame 6b and the face plate 7 and laminated on the surface of the door 1. Well, or Figure 3
As in (c), it may be embedded in the vertical frame 6a, the horizontal frame 6b, or the face plate 7 so as to be stretched inside the door 1.

In the embodiment shown in FIG. 4, the left and right vertical frames 6a, the upper and lower horizontal frames 6b, and the middle horizontal frame 6c of the middle step form a frame frame 6 and a frame plate 6 and the like. The face plate 7 is fitted to form the door 1. The heat conducting plate 2 is formed in a "Sun" shape and is stretched so as to straddle the left and right vertical frames 6a, the upper and lower horizontal frames 6b, the middle horizontal frame 6c and the face plate 7. When the heat conducting plate 2 is stretched on the door 1 in this manner, as shown in FIG. 4B, the heat conducting plate 2 is adhered to the surfaces of the vertical frame 6a, the horizontal frame 6b and the face plate 7 and laminated on the surface of the door 1. Alternatively, or as shown in FIG. 4 (c), the vertical frame 6a or the horizontal frame 6
It may be embedded in b or the face plate 7 so as to be stretched inside the door 1.

Further, as shown in FIG. 5, when a metal part such as the door knob 10 or the hinge 11 is attached to the door 1, a heat conducting plate is attached to the door 1 at a position where the metal part such as the door knob 10 or the hinge 11 is attached. 2 is stretched. The heat conducting plate 2 is generally attached to the surface of the door 1 as shown in FIG. 5B so as to be brought into contact with metal parts such as the doorknob 10 and the hinge 11, but inside the door 1 like the doorknob 10. If it can be attached by penetrating into the hole, it is shown in Fig. 5 (c).
As described above, the heat conduction plate 2 may be embedded and attached in the door 1.

The heat conducting plate 2 is not particularly limited as long as it has a higher heat conductivity than that of wood, and various types can be used. For example, a metal plate such as an aluminum plate or an iron plate can be used, and further, a plate-shaped molding material containing a carbonaceous powder and a binder resin can be used as the heat conduction plate 2. ..

The molding material containing the carbonaceous powder and binder resin will be described in detail below. The carbonaceous powder can be generally used as long as it is a carbonaceous powder, and for example, natural graphite, artificial graphite, carbon black, coke powder, charcoal powder, rice husk charcoal can be used. These may be used alone or in combination of two or more. The particle size of the carbonaceous powder is not particularly limited, but is 1 to 1000
About μm is preferable. The carbonaceous powder can be used by blending expanded graphite powder in addition to those listed above. This expanded graphite is obtained by greatly expanding the interlayer of flake graphite in the direction perpendicular to the layer surface. That is, graphite has a crystal structure in which layers of hexagonal net-like planes of carbon are stacked, and various substances can be inserted between the layers. For example, when treated with a mixed solution of concentrated sulfuric acid and an oxidant, the sulfuric acid between the layers is reduced. Infiltrate into graphite intercalation compound, which rapidly
When heated at a temperature of about 00 to 1000 ° C., sulfuric acid and the like are decomposed and gasified, and the pressure causes the graphite layers to expand tens to hundreds of times in the direction perpendicular to the layer surface. This expanded graphite is called expanded graphite (or expanded graphite).
As the expanded graphite, a commercially available powder can be used as it is, but the particle size thereof is preferably about 30 to 800 μm.

The binder resin is not particularly limited, but it is preferable to use a thermosetting resin that is cured by heating or the like, that is, a thermosetting resin having self-curing property, among which a phenol resin, a melamine resin, Furan resin and the like are suitable. This binder resin is adhered to the surface of the carbonaceous powder to prepare a self-hardening composite material, and this self-hardening composite material is used as the molding material.
That is, the initial condensate of carbonaceous powder and thermosetting resin, for example, phenol resin, melamine resin, or furan resin is put into a kneader, and after kneading these with a solvent such as alcohol, the kneaded product is taken out from the kneader. , This is put into an extrusion molding machine, further extruded while being kneaded to dry the extrusion molded product, and by crushing this, a granular material having a thermosetting resin adhered to the surface of the carbonaceous granular material. Can be obtained.

Further, in preparing the self-curing composite material, the thermosetting resin should be attached to the surface of the carbonaceous powder at the same time as the preparation of the initial condensate of the thermosetting resin. You can also This is the method provided by the present applicant as Japanese Patent Application No. 61-191083. For example, when preparing an initial condensate of a phenol resin, phenols and aldehydes are added to a reaction vessel in the presence of a catalyst and carbon. The phenolic resin is uniformly attached to the surface of the carbonaceous powder by reacting it while mixing with the powdery granules, and this is filtered and dried to obtain a self-curing composite material as spherical powders. Is what you can get. A self-curing composite material can be obtained with a melamine resin or a furan resin in the same manner as this method. In the case of melamine resin, a self-hardening composite material can be obtained as a spherical powder or granule as in the case of a phenol resin, but in the case of a furan resin, it cannot be generally prepared into a spherical powder or granule, It will be used after freeze-drying.

In general, carbonaceous powders, especially graphite, are poorly wet with resin, and when the carbonaceous powders and resin are kneaded with a kneader as in the former method to prepare a self-hardening composite material. , It is difficult to uniformly disperse the carbonaceous powder and it is difficult to mix a large amount of carbonaceous powder, but when the thermosetting resin is synthesized as in the latter method, the carbonaceous powder is simultaneously added. There is no such problem when preparing a self-hardening composite material by mixing, and a self-hardening composite material containing a large amount of carbonaceous powder particles can be easily dispersed as well as uniformly dispersing the carbonaceous powder particles. It can be prepared. Therefore, the method of preparing the self-curing composite material is not limited in any way, but the latter method is more preferable. In order to obtain sufficient thermal conductivity, the content of the carbonaceous powdery particles in the molding material is preferably 30% by weight or more. In addition to carbonaceous powders, powders such as alumina and magnesia can be blended if necessary, and fibrous or lightweight aggregates etc. should be added as reinforcements and extenders. You can also

The self-hardening composite material obtained as described above can be used as it is as a molding material, but it is also possible to mix this self-hardening composite material with sand and use it as a molding material. It is preferable to use silica sand as the sand, which is not particularly limited, but the particle size is 1 to 5
It is preferably about 00 μm. The sand may be directly mixed with the self-hardening composite material, but it is preferable that the sand is prepared and used in the form of resin coated sand. The resin coated sand is a sand surface coated with a self-curing thermosetting resin, and it is preferable to use the same resin as the resin of the self-curing composite material as the coating resin. This resin is a molding material. It constitutes a part of the binder resin. When the resin coated sand is prepared by coating sand with a resin, a dry hot coating method, a cold coating method, a semi-hot coating method, a powder solvent method or the like can be used. The dry hot coating method is that solid resin is added to heated sand and mixed, and the solid resin is melted by heating with sand to wet and coat the surface of the sand with the molten resin, after which while maintaining this mixing. Cool down
This is a method of obtaining a granular, resin-coated sand. The cold coating method is a method of obtaining a resin coated sand by dissolving a resin in a solvent such as methanol to form a liquid, adding this to sand, mixing the mixture, and volatilizing the solvent. The semi-hot coating method is a method in which a resin dissolved in the above solvent is added to and mixed with sand heated to about 50 to 90 ° C. to obtain a resin coated sand. The powder solvent method is a method in which a solid resin is crushed, the crushed resin is added to sand, a solvent such as methanol is further added, and this is mixed to obtain a resin coated sand. Although any of the above methods can provide a resin-coated sand that is granular and free-flowing, the dry hot coating method is preferable in terms of workability and the like. Further, as described above, a curing agent, if necessary, at the time of mixing to prepare the resin coated sand, and other various coupling agents such as a silane coupling agent for making the sand and the resin compatible with each other,
Further, a lubricant such as calcium stearate may be added. The plate-shaped heat conduction plate 2 can be prepared by heating and pressing the molding material obtained as described above to cure the binder resin.

Therefore, in a fireproof door made by stretching the heat conducting plate 2 on the door 1, even if a flame locally acts on the surface of the door 1 at the time of a fire, the high temperature due to the flame is generated by the heat conducting plate 2. It is possible to prevent the high temperature from being locally concentrated on the door 1 by being transmitted and dispersed in the surface direction of the door 1.
Therefore, it is prevented that the temperature rises locally due to the local concentration of heat and the burnout occurs in the door 1 at this location, and the invasion of the flame or smoke due to the burnout is prevented for a long time, and It is possible to block smoke for a long time. In particular, the frame 1 of the door 1 and the face material 7 such as the door 1
Even if the flame is concentrated and acts on the joint of the members that make up
Similarly, since the high temperature due to the flame is transmitted and dispersed in the surface direction of the door 1 by the heat conduction plate 2, it is possible to prevent the high temperature from intensively acting on each member at the joint, and to prevent the high temperature of each member at the joint. It is possible to reduce shrinkage, suppress the formation of gaps at the joints of these members for a long time, prevent the entry of flames and smoke from the gaps, and block the flames and smoke for a long time. Can be performed. Further, even if a metal part such as the door knob 10 or the hinge 11 provided on the door 1 is exposed to a high temperature during a fire, the high temperature is transmitted and dispersed in the surface direction of the door 1 by the heat conduction plate 2, so that the metal part is It is possible to prevent the temperature of (1) from becoming abnormally high, and to prevent the door 1 from being burnt out at the metal parts.

[0019]

As described above, according to the present invention, the door made of wood is provided with the heat conducting plate. Therefore, even if the flame locally acts on the door during a fire, the high temperature due to the flame causes the heat conduction. The plates disperse in the surface direction of the door and prevent the door from burning through.Also, even if the flame concentrates on the joints of the members that make up the door, the high temperature due to the flame will be It can be transmitted and dispersed in the surface direction of the door, and it is possible to prevent the formation of gaps at the joints of these members, and even if the metal parts provided on the door are exposed to high temperatures during a fire, this high temperature will be affected by the heat conduction plate. It is possible to prevent the door from being burnt out at the metal parts by being transmitted and dispersed in the surface direction of the door, and to block flames and smoke for a long time.

[Brief description of drawings]

1A and 1B show an embodiment of the present invention, in which FIG. 1A is a front view, FIG. 1B is a sectional view of one aspect, and FIG. 1C is a sectional view of another aspect.

FIG. 2 shows another embodiment of the present invention, (a)
Is a front view, (b) is a sectional view of one aspect, and (c) is a sectional view of another aspect.

FIG. 3 shows another embodiment of the present invention, (a)
Is a front view, (b) is a sectional view of one aspect, and (c) is a sectional view of another aspect.

FIG. 4 shows another embodiment of the present invention, (a)
Is a front view, (b) is a sectional view of one aspect, and (c) is a sectional view of another aspect.

FIG. 5 shows still another embodiment of the present invention,
(A) is a front view, (b) is sectional drawing of one aspect, (c) is sectional drawing of other aspect.

[Explanation of symbols]

 1 door 2 heat conduction plate

Claims (3)

[Claims] 1. A fire resistant door characterized in that a door made of wood is provided with a heat conductive plate. 2. The fire resistant door according to claim 1, wherein a heat conducting plate is stretched across a plurality of members made of a wood material that constitute the door. 3. The fire resistant door according to claim 1 or 2, wherein a heat conducting plate is provided on the door at a location where a metal part such as a door knob or a hinge is provided.