KR20110100187A - A fire door - Google Patents

Abstract

The present invention relates to a fire door, the inner panel and the outer panel; A non-combustible panel interposed between the inner and outer panels; The non-combustible panel includes a sound-absorbing space formed for sound absorption and light weight of the panel. The non-combustible panel includes first and second non-combustible panels attached to opposite surfaces of the inner and outer panels, respectively.
As a result, the conventional fire protection function of the fire door, as well as the weight is lighter, the sound absorption efficiency is improved.

Description

Fire door {A fire door}

The present invention relates to a fire door, and more particularly, to a fire door having a soundproof function by interposing a non-combustible panel interposed between inner and outer panels to form a sound absorbing space therein, and also expanding vermiculite (vermiculite) and expanded pearl rock. It is related with the fire door which also has a deodorization function using the nonflammable panel which uses (perlite) as a main material.

In general, fire doors (FIRE DOOR) is to prevent the fire from spreading to a larger space when the fire occurs inside the building, and to minimize the damage to life and property by the spread fire, such as the shutter, It is mainly used for entrance doors, front doors and visits.

In view of the structure of such a fire door, when the fire door is an entrance door or a front door, a honeycomb-filled filler made of paper is interposed between the outer panel and the inner panel of steel sheet.

In the case of the fire door made of steel plate, the installation position is limited because the weight is heavy and the appearance is not beautiful, so to solve this problem, the fire doors of various structures that can be installed at the entrance or the front door of the building as well as the inside visit are studied. It's happening.

For this purpose, recently, a structure in which expanded vermiculite is filled inside the fire door has been actively studied.

Here, to explain briefly about vermiculite and expanded vermiculite, vermiculite is endured well at high temperatures without burning, and has low electrical conductivity without melting in water or organic solvents. It is used for various purposes such as fire prevention materials.

When the vermiculite is crushed to a suitable size and heated to 800-1200 degrees Celsius and dropped to low pressure in a moment at high pressure, expanded vermiculite of 100 times or more of the previous size is produced, and the expanded vermiculite has insulation, insulation, anti-corrosion and specific gravity. It has a light property of about 0.4.

A conventional fire door manufactured using this expanded vermiculite will be described with reference to the drawings.

First, as an example, the fire door 10 of FIG. 1 includes an outer panel 11, an inner panel 12, and a plate-shaped non-combustible panel 13 made of expanded vermiculite on the inner and outer panels 11 and 12. It was done.

Although the fire door 10 is effective in preventing the spread of fire, the weight of the fire door 10, that is, the vermiculite is in an expanded state, but its weight is much heavier than that of ordinary wood, and the sound transmission is much better. Better than that, there is a problem that the non-fireproof function is less efficient than the conventional general door.

Meanwhile, as another example, the fire door 20 of FIG. 2 includes a lower frame 21, a non-combustible panel 23 made of expanded vermiculite in a state where a honeycomb of paper material is interposed in the lower frame 21, and the lower frame The upper plate 22 is coupled to the 21.

Since the amount of expanded vermiculite charged in the non-combustible panel 23 is reduced by honeycomb, the weight of the fire door 20 is also slightly reduced, but the weight of the fire door 20 is insignificant, and there is still a burden on the weight of the fire door 20. Of course, the problem of improving sound insulation also remains.

The present invention relates to a fire door that is devised to solve the above problems, and includes a non-combustible panel having a sound-absorbing space for sound insulation, soundproofing and weight reduction, an inner / outer panel to which the non-combustible panel is attached, the non-combustible panel, and an inner / outer panel. By including a closing member inserted and attached to the side in the assembled state of the panel, the object is to provide a fire door that is light weight and sound insulation and sound absorption efficiency is increased.

It is another object of the present invention to provide a fire door including a vent so that the deodorizing function of the non-combustible panel is utilized by using the flaw space.

Fire door according to the present invention for achieving the above object, the inner panel and the outer panel; Non-combustible panels interposed between these inner and outer panels; The non-combustible panel includes a sound absorbing space formed for sound absorption and light weight of the panel. The sound absorbing space is preferably communicated directly to the outside.

The non-combustible panel includes a first panel and a second non-combustible panel which are attached to one panel or to opposite surfaces of the inner and outer panels, respectively. Here, the sound absorbing space is formed by a plurality of protrusions on the surface abutting the first, second non-combustible panel, and formed by the concave portions adjacent to these protrusions, the protrusions are hemispheres, cones, polyhedrons, cones Frustum, polyhedral frustum shape, preferably pyramidal frustum shape. Integral panels can produce sound-absorbing space shapes of the same or similar shape when fabricated into a process or mold.

The fire door may further include a closing member for side finishing. The finishing member may be a finishing member used in the side portions of the commonly used door, but the following describes a more suitable finishing member than the fire door of the present invention. In the present invention, the closing member is interposed so that the end of the middle panel is protruded between the first, second non-combustible panel and the protruding end of the middle panel is inserted, and is pressed while attaching one side of the first, second non-combustible panel. Alternatively, the finishing member may be installed such that side surfaces of the first and second non-combustible panels are cut inwardly, and are inserted and attached to the inward cutting surfaces of the first and second non-combustible panels to insert and attach the protruding ends of the intermediate panels. In addition, veneer may be attached to an outer surface of the inner and outer panels. The veneer may be directly attached to the first and second non-combustible panels in the structure in which the inner and outer panels are removed.

The closing member may include a ventilation unit through which air can be communicated, and may further include a cover unit having a ventilation unit. Finishing member provided with the cover portion or the ventilation portion may be used on any one or more sides of the side of the fire door is preferably used on the upper and lower surfaces.

As described above, in the fire door according to the present invention, a sound absorbing space is formed in the non-combustible panel, which becomes lighter and further improves the sound absorbing function.

In addition, the fire door according to the present invention includes a non-combustible panel comprising a swelling pearlstone having a light weight and high sound absorption, an expanded vermiculite complementing the brittleness of the swelling pearl rock, and an inorganic binder. It is lighter than the panel, and the sound absorption function is improved.

In addition, the fire door of the present invention has the advantage to be able to exert the antibacterial and deodorizing function of the non-combustible panel through the ventilation portion through which air can be circulated in the upper and lower parts.

In addition, the combination of the fire door and the hinge is further strengthened by the finishing member mounted on the side of the fire door where the non-combustible panel and the wood panel are assembled.

In addition, since the non-combustible panel of the present invention is manufactured to have a hardness of 1 to 4, it is easy to cut and install to fit the door frame with a wood processing mechanism in the field, thereby improving the field workability.

1 and 2 are a cross-sectional view and an exploded view showing the inside of a conventional fire door,
3 is an exploded perspective view showing each layer of the fire door according to an embodiment of the present invention,
4 is a perspective view of a fire door according to the present invention,
5A is a cross-sectional view taken along line II as an embodiment of the fire door shown in FIG.
5B is a cross-sectional view of another embodiment of FIG. 4,
5C is a cross-sectional view of another embodiment of FIG. 4,
6A is a partially enlarged perspective view of the finishing member shown in FIG. 5A,
FIG. 6B is a partially enlarged perspective view of the finishing member shown in FIG. 5C;
7 is a state diagram in which the hinge is attached to the fire door of FIG.
8A, 8B, and 8C are plan views of embodiments of a cover part covering a side portion of a fire door according to the present invention.

DETAILED DESCRIPTION OF THE INVENTION

A fire door according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

3 is an exploded perspective view illustrating a layer structure of a fire door according to an exemplary embodiment of the present invention, FIG. 4 is a perspective view of a fire door according to the present invention, and FIG. 5 is a cross-sectional view taken along line II of the fire door shown in FIG. 4. 5A is one embodiment of FIG. 4, FIG. 5B is another embodiment of FIG. 4, FIG. 5C is another embodiment of FIG. 4, FIG. 6A is a partially enlarged perspective view of the finish member shown in FIG. 5A, and FIG. 6B is a partially enlarged perspective view of the finishing member shown in FIG. 5C, FIG. 7 is a state diagram in which a hinge is mounted on the fire door of FIG. 4, and FIG. 8 is a plan view of the cover part coupled to the side part of the fire door of FIG. 4.

First, as shown in Figure 3, the fire door 100 according to the present invention, the inner panel 101 and the outer panel 102 of the wood material for the external finishing, respectively, on the opposing surfaces of the inner and outer panels (101, 102) Attached first and second non-burnable panels 103 and 104, intermediate panel 105 interposed between the first and second non-burnable panels 103 and 104, and wood veneer attached to outer surfaces of the inner and outer panels 101 and 102 106 is included. The veneer 106 may be used depending on the material of the inner and outer panels 101 and 102, and is not necessarily used.

The inner and outer panels 101 and 102 and the middle panel 105 are veneer plywood, laminated wood, MDF (Medium Density Figerboard), particle board or plywood such as OSB (Oriented Stand Board), reinforcement wood, Copenhagen rib or the like, solid wood, special wood, etc. It is made of wood, and if necessary, the coating of fire prevention, flame retardant and the like can be carried out.

A plurality of protrusions are formed on one surface of the non-combustible panels 103 and 104 so as to be continuously arranged at regular intervals, and the formation of the protrusions adjacent to the protrusions reduces the overall weight of the non-combustible panels 103 and 104. While forming a sound absorbing space 107 to be described later. This protrusion may be formed by a mold in manufacturing the non-combustible panels 103 and 104, or may be an adjacent protruding portion of the concave portion that is intaglio-processed by a separate tool considering hardness in the finished non-combustible panels 103 and 104. have.

The projections can be produced in various shapes effective for sound absorption, including hemispheres, cones, polyhedrons, cone frustums, polyhedral frustums, and the like. The size and depth of the protrusions may be adjusted according to the thickness of the non-combustible panels 103 and 104. For example, in the case of the non-combustible panels 103 and 104 having a thickness of 20 mm, the maximum width is 20 mm long and 20 mm long, and is preferably about 10 mm thick. Here, the thickness may be the height of the protrusion protruding outward from the side thicknesses of the non-combustible panels 103 and 104, or may be the depth of the yaw portion that has entered inwardly.

The non-combustible panel is made of a mixture of expanded pearlstone and expanded vermiculite as a main component, and may be made by further mixing an inorganic binder, which is an auxiliary additive for attachment to the inner and outer panels 101 and 102, and may be cut by a wood processing tool. It is desirable to have a hardness of about 1 to 4 which is present. Therefore, in the present invention, the non-combustible panel is composed of pearlite as a main component, vermiculite as an auxiliary component, and an inorganic binder is blended. Specifically, the pearlite is 60 to 75%, vermiculite 5 to 20%, and inorganic binder 5 to 20%. It may be blended in a volume ratio and manufactured to have a hardness of 1-4. Such non-combustible panels have good workability and can be made by processing various defect spaces, and also have good non-combustibility.

The expanded pearl rock is produced by calcination after calcining the pearl stone at 1000 ℃ or more, the specific gravity is 0.04 ~ 0.2 and the porosity is a lightweight material of about 90%, has excellent fire resistance and sound absorption, disadvantages are brittle weak.

In addition, the expanded vermiculite is produced by plastic expansion of vermiculite at 1000 ℃ or more, this material is also lightweight, fire resistance and sound absorption, and good antibacterial and deodorant. The advantage is elasticity.

Here, although the non-combustible panels 103 and 104 may be manufactured as one component of the expanded pearl rock or expanded vermiculite, in the present invention, the expanded vermiculite is expanded to compensate for the brittleness of the expanded pearl rock while maximizing the light weight and sound absorption function of the expanded pearl rock. The non-flammable panels 103 and 104 having a hardness of 1 to 4 are manufactured to be blended.

Here, when hardness is less than 1, it is hard to be broken and it is difficult to process, and when hardness exceeds 4, workability worsens.

As illustrated, the inner panel 101 or the outer panel 102 is heated and pressed to one surface of each of the first and second non-flammable panels 103 and 104 manufactured as described above. It is suitably changed according to the material mix ratio of the 1, 2 non-combustible panels 103 and 104, and the thickness of the 1st and 2nd non-flammable panels 103 and 104. For example, when the thickness of the non-combustible panels 103 and 104 is about 5 to 30 mm, the inner and outer panels 101 and 102 of about 2 to 5 mm are heated and pressurized to a temperature of about 60 ° C., and the outer surfaces of the inner and outer panels 101 and 102 are A veneer of 0.2 to 2 mm thickness can be attached.

Here, when looking at the preferable manufacture example of the said non-combustible panel, it is mix | blended and produced with 70% of expanded pearl rock, 15% of expanded vermiculite, and 15% of an inorganic binder, and the hardness at this time is about 2.5-3.

On the other hand, the non-combustible panel is composed of 30-50% by volume pearlite, 50-70% by volume vermiculite or 50-70% by volume pearlite, 30-50% by volume vermiculite, depending on the particle size of the vermiculite and the pearlite It can also be configured. In other words, it can be adjusted in consideration of the main performance of this fire door such as deodorization, processability and non-combustibility. In addition, charcoal or other deodorizing and / or antibacterial components may be further added. In the present invention, the non-combustible panel is preferably an inorganic panel mainly composed of the above expanded pearlite or expanded vermiculite, but the present technology can be applied to a general non-combustible panel that can create a sound absorbing space.

The first non-flammable panels 103 and 104 to which the inner panel 101 is attached and the second non-flammable panels 103 and 104 to which the outer panel 102 are attached are attached to the intermediate panel 105 with their protrusions facing each other. After the adhesive is applied to both surfaces of the intermediate panel 105, the first and second non-combustible panels 103 and 104 may be adhered to each other.

Thus, as shown in FIG. 5A, the sound absorbing space 107 is formed by adjacent yaw portions of the projections of the intermediate panel 105 and the first and second non-combustible panels 103 and 104, and in this sound absorbing space 107 Sound waves transmitted through the first and second non-burnable panels 103 and 104 are dissipated.

The fire door 110 of the present invention is shown in Figure 4, the fire door 110, as shown in the examples shown in Figures 5A to 7, the inner panel 101 and the outer panel 102 made of wood First and second non-flammable panels 103 and 104 attached to opposing surfaces of the outer panels 101 and 102, an intermediate panel 105 interposed between and attached to the first and second non-flammable panels 103 and 104, and a finishing member installed on the side. 108 is made to include.

Here, since the description of the overlapping components including the inner and outer panels 101 and 102, the first and second non-combustible panels 103 and 104, the intermediate panel 105, and the like has been described above, other components will be described briefly below. Explain in detail.

5A, 6A, and 7, the finishing member 108, while finishing the side of the fire door 110, the hinge 121 is used when the fire door 110 is mounted to the door frame (not shown) is fastened or It is a member for fixing the connection member necessary for the installation and use of the door, such as a handle lock. When the first and second non-flammable panels 103 and 104 are cut inclined inwardly, the finishing member 108 is protruded inwardly so that the end portions of the intermediate panel 105 protrude. The end is inserted and attached.

The closure member 108 is substantially triangular in shape and has a groove 108a into which an end of the intermediate panel 105 can be inserted, and the closure member 108 is formed on all four sides or on selected sides. It may be attached but is preferably attached to the side to which the hinge 121 is coupled. Therefore, when the hinge 121 is installed on the side of the fire door 110 by the coupling member 121a, the coupling member 121a is firmly lodged in the finishing member 108.

The shape of the finishing member 108 may be changed to correspond to the cut shape of the first and second non-flammable panels 103 and 104. That is, when the cutting surfaces of the first and second non-combustible panels 103 and 104 have a shape in which adhesion force such as a curved shape, a step shape, and a saw tooth shape formed on a cutting line of an oblique line is improved, the first and second non-combustible panels 103 and 104 of the finishing member 108 may be used. It is also preferred that the part abutting with) is fitted into a matched shape.

Meanwhile, the intermediate panel 105 may be removed as shown in FIG. 5B. The intermediate panel 105 has an auxiliary function for preventing the non-flammable panels 103 and 104 from being twisted or bent due to an external force, but the first and second non-flammable panels 103 and 104 are in contact with each other in contact with each other. When the force of the back is generated in the fire door 110 to act as a force opposite to each other on the first and second non-combustible panel (103,104), thereby offsetting the intermediate panel 105 to reduce the thickness or weight of the fire door (110) This may be removed.

At this time, the finishing member 108 is also removed from the groove (108a), which is excluded from the attachment to the intermediate panel 105, which is fitted to the cutting surface of the first, second non-combustible panels (103, 104).

The cutting surfaces of the first and second non-burnable panels 103 and 104 are located on a part of the projection surface of the first and second non-burnable panels 103 and 104, that is, the intermediate panel 105 in FIG. 5A. 5B, the first and second non-flammable panels 103 and 104 are cut up to a part of the parts in contact with each other, and the finishing member 108 is inserted and attached to this part so that the finishing member 108 and the first non-combustible panel 103 and 104 are cut. The adhesion of the first and second non-combustible panels 103 and 104 is improved, and ultimately, the coupling force between the hinge 121 and the fire door 110 can be improved.

Here, the finishing member 108 may be attached to the cut portion of the first and second non-burning panels 103 and 104, but the finishing member 108 is pressed against the side of the first and second non-burning panels 103 and 104 by an external force. It may be embedded and attached. At this time, the inserted end portions of the finishing member 108 are in contact with the intermediate panel 105 in FIG. 5A or the first and second non-combustible panels 103 and 104 in FIG. 5B as described above. It is preferable to fit up to a part of the site.

On the other hand, the finishing member 108 ′ is provided in a substantially rectangular shape, as shown in FIG. 5C, and is inserted between the inner panel 101 and the outer panel 102 of the wood while finishing the side surface of the fire door 110. In addition, the first and second non-flammable panels 103 and 104 may be provided so as to be pressed to press both sides.

The finishing member 108 ′ is preferably formed to have a surface in contact with each inner surface of the inner and outer panels 101 and 102 in a flat surface, and to press the side surfaces of the first and second non-combustible panels 103 and 104. A groove 108'a is formed into which the end of the middle panel 105 can be inserted so that the protruding end of the intermediate panel 105 is inserted into the groove 108'a.

In this case, the length of the intermediate panel 105 is longer than the length of the first and second non-flammable panels 103 and 104, so that the end of the intermediate panel 105 protrudes.

In addition, the hinge 121 is coupled to the other side surface where the groove 108a 'is formed in the closing member 108', and the hinge 121 is connected to the side of the fire door 110 by the coupling member 121a. When installed, the coupling member 121a is firmly lodged in the finishing member 108 '.

In addition, when the intermediate panel 105 is removed to reduce the thickness or weight of the fire door 110, the finishing member 108 'will also remove the groove 108'a, which is excluded from attachment with the intermediate panel 105. Can be. Of course, even when the intermediate panel 105 and the first and second non-combustible panels 103 and 104 are formed to have the same length, the groove 108'a may be removed, and the finishing member 108 ' It may be attached by fitting, or the finishing member 108 ′ may be bonded using a general adhesive.

That is, when the finishing member 108 is formed in a triangular shape as described above, and the cutting surfaces are provided on the first and second non-fireproof panels 103 and 104, the areas of the first and second non-fireproof panels 103 and 104 are used. The fireproof performance of the fire door 110 is increased because it has the structure that is maximized, on the other hand, the first, second non-combustible panel in the rectangular shape of the finishing member 108 'as described above another embodiment In the case where the both sides of the 103 and 104 are fitted to press, the fire protection capacity of the fire door 110 is relatively low, but the manufacturing process of the finishing member 108 ′ and the first and second non-combustible panels 103 and 104 is simplified. As a result, manufacturing cost can be reduced and manufacturing time can be shortened.

Although the first and second non-combustible panels 103 and 104 are used in FIG. 5B, they may be used as one integrated non-combustible panel. If the sound absorbing space 107 is formed as a material of the non-combustible panel described above during processing or mold molding, it can be used as shown in FIG. 5B. When making a non-combustible panel integrally, what is necessary is just to make and use the shape of the flaw space 107 which is easy to mold molding or processing. In this case, an inner outer panel and a non-combustible panel therebetween are interposed, and the three-layer structure is also possible.

In addition, the first and second non-combustible panels 103 and 104 are disposed on both sides of the intermediate panel 105, that is, in which the inner and outer panels 101 and 102 are removed from the fire door 110. The veneer 106 is attached to the outer surfaces of the 103 and 104 to reduce the thickness and weight of the fire door 110 according to the installation place and environment.

In the present invention, the non-combustible panel is made to communicate with the sound absorbing space in the lateral direction as in the example of FIG. 3 so that the surface can be communicated with the outside air to implement a deodorizing function. Non-combustible panels may include expanded vermiculite and expanded pearls as described above to achieve deodorizing performance and / or antimicrobial activity. In particular, when the non-combustible panel including expanded vermiculite and expanded pearl is provided with the sound absorbing space of FIG. 3, the deodorizing function may be well exhibited, such as eliminating odors when communicating with external air. To this end, the uneven surface constituting the sound absorbing space of the non-combustible panel is preferable to be able to contact a lot of air. This requires a structure that allows air to communicate with the side of the fire door. Deodorization of fire doors can also help to remove smoke in a fire.

FIG. 8 shows a cover part which is arranged on the side of the fire door and has a ventilation part capable of air circulation. The cover part 109 can be made and used together with the finishing member 108, the biggest difference being the ventilation section (109a, 109b, 109c) that can be important air circulation. The ventilation units 109a, 109b, and 109c are designed to maximize the deodorization function of the non-combustible panel, and the outside air flows in and out through the ventilation units 109a, 109b, and 109c, and the curved surfaces of the non-combustible panel It is to be able to perform a deodorizing role by contact. Of course, such vents 109a, 109b, and 109c are equally applicable to the finishing member 108 described above. However, the closing member 108 is preferably disposed in consideration of the aesthetics without hindering the fixing member, the locking device, etc. necessary for the installation of the hinge or the fire door.

The ventilators 109a, 109b, and 109c are ventilated as shown in FIG. 8A according to the shape of FIG. 5A or 5C according to the shape of the sound absorbing space 107 as shown in the three cross-sectional examples of FIG. 5. 109a may be formed or the ventilation portion 109b may be formed as shown in FIG. 8B by being smaller than the cross section of the sound absorbing space 107. Alternatively, according to the shape of FIG. 5B, the vent 109c may be formed as shown in FIG. 8C. What is important is that the vents do not have to be penetrated as shown so that the air can be easily contacted and circulated along the curved surface of the non-combustible panel. That is, the air can be communicated for aesthetics while blocking the ventilation unit with a large pore material, or a ventilation unit can be made using a material of the same material.

The cover part may be formed by forming a ventilation part on a thin plate or a general finishing material, unlike the finishing member, on the upper and lower side parts of the fire door, or on a side part of the side where the force is not applied, such as a hinge, an external connection member, or a locking device. .

On the other hand, the fire doors of the present invention described above, preferably, 60 to 75% by volume of pearlite and 5 to 20% by volume of Vermiculite is pulverized after the expansion of the volume by heating and pressure change after 5 to 20% by volume of inorganic The non-combustible panels 103 and 104 are manufactured so that the binder is blended and then filled into a mold in which the shapes of hemispheres, cones, polyhedrons, cone frustums, and polyhedrons are formed to form protrusions on one surface thereof; An inner panel 101 or an outer panel 102 of the fire door is heated and pressed to the other surfaces of the non-combustible panels 103 and 104 and attached to the non-combustible panels 103 and 104; A pair of non-combustible panels (103, 104) are attached to the non-combustible panels (103, 104) so that the projections are opposed to each other so that a sound absorbing space (107) is formed by adjacent yaw portions of the projections; Can be manufactured. Here, the intermediate panel 105 is interposed between the pair of non-combustible panels 103 and 104 to further include a process of being attached to each other.

In addition, the sides of the non-combustible panels 103 and 104 are cut inwardly so that the end portions of the intermediate panel 105 protrude, and the end portions of the protruding intermediate panels 105 are inserted into and attached to the cutting surfaces of the non-combustible panels 103 and 104. Steps are further included.

Depending on the material of the inner and outer panels 101 and 102, the veneer 106 may be additionally attached to the outer surface.

Industrial availability

Door according to the present invention can be used as a door or a general door of a home or office.

Claims (5)

Inner and outer panels; And
Interposed between the inner and outer panels and attached to opposite surfaces,
It includes; non-combustible panel having a sound absorption space formed for the sound absorption and the light weight of the panel;
Fireproof door is characterized in that the sound absorbing space can be communicated to the outside. The method of claim 1,
The sound-absorbing space is formed of a plurality of protrusions in the direction in which the non-combustible panel is composed of the first and second non-combustible panels and abuts each other, and is formed by concave portions adjacent to these protrusions,
And an intermediate panel interposed between the first and second non-combustible panels, and
The fireproof door of the non-combustible panel is characterized in that the hemispherical, conical body, polyhedron, conical frustum, polyhedral frustum shape or pyramid frustum shape. The fire door according to claim 1 or 2, further comprising:
A closing member coupled to an outer side surface of the fire door so as to fix a hinge or a connection member necessary for installing the fire door; And
It is coupled to any one or more of the sides of the fire door, and a closing member or cover portion having a ventilating portion capable of air distribution; includes;
The non-combustible panel includes expanded pearls and expanded vermiculite, and the non-combustible panel exhibits a deodorizing function through the ventilation unit. The method of claim 3, wherein the closure member,
It is installed to be fitted to be attached to press the inner surface, the outer surface, or the inner and outer surface of the first, second non-flammable panel,
When the cutting surface of the first and second non-combustible panel is one of a diagonal shape, a step shape, a curved shape, and a saw tooth shape formed on the cutting surface of the diagonal line, the finishing member has a shape that matches the cutting surface and the finishing member The inserted end of the first or second non-combustible panel is inserted to reach a part of the projections, or
When the end portion of the middle panel is provided to protrude and used, the closing member is formed by inserting a groove into which the end of the middle panel is inserted,
Fire door characterized in that. The method according to any one of claims 2 to 4,
The inner and outer panels and the middle panel is wood including veneer plywood, laminated wood, MDF, particle board, plywood, solid wood,
In the non-combustible panel, pearlite is blended in a volume ratio of 60 to 75%, vermiculite 5 to 20%, and inorganic binder 5 to 20%, and the hardness is 1 to 4, or
The veneer is attached to the outer surface of the inner and outer panels,
Fire door characterized in that.

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