JPH0616056Y2 - Fire door structure - Google Patents

Description

[Detailed Description of the Invention] "Industrial application field" This invention relates to the structure of a fireproof door with improved fireproof performance. By providing a thermal foam material at the boundary between the vertical and horizontal members, the fire spread resistance of the door is increased. Regarding things

“Prior Art” Generally, it is required that a building does not easily cause a fire and that even if a fire occurs, it is difficult to spread the fire. When a fire occurs here, considering the safety against flames, the properties of the fire are: ignitability of building materials, flame spread, amount of combustibles, thermal conductivity, opening ratio of windows, doors, etc. Although it is affected by various conditions such as the combustion conditions of the fire source, it is especially important to prevent the spread of fire and the possibility of evacuation in the event of a fire. That is, it is possible to sufficiently prevent the propagation of smoke.

Therefore, in the passages and openings of the building, a door with improved fire protection performance is provided, but if the door is made of wood, the wood itself should be made of flame-retardant wood,
It is preferable to structurally obtain a sufficient flame spread prevention effect.

"Problems to be solved by the invention" By the way, doors installed in buildings have various structures due to decorative considerations, among which are vertical frames, upper frames, lower frames, etc. A door is known in which the periphery is hardened with a vertical bar or a horizontal bar arranged inside, and a mirror plate is fitted between each frame or bar, and the mirror plate is fixed by nailing or bonding.

However, in the case of a fire with a door of such a structure, through a gap between the joints of the frames, a gap between the crosspieces and the frame, a gap between the end plate and the frame or crosspiece, etc. There is a risk that smoke or flame may pass through, and it may not be possible to obtain a sufficient fire spread prevention effect.

The present invention has been made in view of the above circumstances, and provides a fireproof door that increases the fire resistance of a door composed of vertical material, horizontal material, plate material, etc., and does not become a passage for flames or smoke in the event of a fire. With the goal.

"Means for solving the problems" This invention was made to solve the above problems,
In a fire door constructed by joining at least one of a vertical member such as a vertical frame or a vertical bar, a horizontal member such as a horizontal frame or a horizontal bar, and a plate member such as a mirror plate at each end, Either one of a concave portion and a convex portion is formed at each end of the plate material, and a thermal foam material is interposed between the concave portion and the convex portion, and the convex portion is fitted into the concave portion.

"Operation" When the door is heated during a fire, the thermal foam material provided at the boundary between the vertical material, the horizontal material and the plate material expands and closes the gap between them. No flame or smoke passes through the part.

[Embodiment] FIG. 1 to FIG. 3 show an embodiment of the present invention. In a fireproof door D of this embodiment, as shown in FIG. (Vertical material) 10,11
The upper frame (horizontal member) 12 and the lower frame (horizontal member) 13 are assembled in a frame shape. Further, a middle frame (horizontal member) 14 is provided between the upper frame 12 and the lower frame 13, and a vertical bar (vertical member) 15 is connected to the central portion of the upper frame 12 and the central portion of the intermediate frame 14. A vertical bar (vertical member) 16 is provided so as to be connected to the central portion of the middle frame 14 and the central portion of the lower frame 13. The frame 10, 11, 12, 13,
14 and the vertical bars 15 and 16 are joined to each other with a dowel and an adhesive. Further, an end plate (plate material) 18 is attached to a portion surrounded by the frames 10, 11, 12, 13, 14 and the vertical bars 15, 16.

The cross-sectional structure of the portion where the end plate 18 is joined to the frames 10, 11, 12, 13, 14 and the vertical bars 15, 16 is the first.
As shown in the figure, the frame 10, 11, 12, 1
The cross-sectional structures of the portions where 3,14 and vertical bars 15,16 are joined to each other are as shown in FIG.

First, the cross-sectional structure shown in FIG. 1 will be described. A convex portion 19 is formed on the entire outer periphery of the end plate 18, and a concave portion 2 into which the convex portion 19 can be fitted on the end face of a frame or a vertical bar outside thereof.
0 is formed, and the thermal foam material 21 is provided on the bottom of the recess 20. The end plate 18 is provided by fitting the convex portion 19 on the outer periphery thereof into the concave portion 20. The end plate 18
Steps and irregularities are formed on the ends of each of the frames or vertical bars to be joined to each other and the outer peripheral portion of the end plate 18 for the purpose of adjusting the aesthetics of these joints.

The cross-sectional structure shown in FIG. 3 will be described. A convex portion 22 is formed at the end of one of the frames or the vertical bars, and a concave portion 23 is formed at the end of the other frame or the vertical bars. The thermal foam material 24 is provided in the. And each frame 10,11,1
2,13,14 and the vertical bars 15,16 are fitted with the projections 22 formed on one of the frames or the vertical bars into the recesses 23 formed on the other frame or the frames, and are bonded to the tenon. They are integrated by joining with a chemical.

By the way, the frames 10, 11, 12, 13, 14 and the vertical bars 15, 16 and the end plate 1
All of 8 are made of flame-retarded wood. This flame-retarded wood is obtained by impregnating wood such as Nanyo cedar with dicyandiamide, phosphoric acid, boric acid and a partial reaction product of water in a solid content of 100 kg or more per 1 m ³ of wood. It is possible to impregnate 100 kg or more (5 times as much as usual) with the combination of the wood and the chemicals, and by such an impregnation action, wood having sufficient performance as a semi-incombustible material can be obtained.

Further, the thermal foam material 21, 24 is a material that foams and expands in volume when heated to several hundreds of degrees Celsius, and a sheet shape or a mixture of hydrous sodium silicate, a small amount of organic matter and glass fiber or wire. A plate-shaped product, a putty-shaped product in which polysiloxane and a filler are mixed, or a putty-shaped product in which cement and glass fiber are mixed can be appropriately used. Further, as the thermal foam material 21, 24, specifically,
Use the product name "Palsol Fireboard" (made by BASF, West Germany), the product name "System M" (made by Nullifier UK), or the product name "AS Bond" (made by Asano Slate Co., Ltd.). However, the present invention is not limited to these.

In the door D constructed as described above, each frame 10, 11, 1
Since 2,13,14, vertical bars 15,16 and end plate 2 are made of flame-retardant wood, sufficient fireproof performance is exhibited. Moreover, the end plate 1
Since 8 is made of flame-retardant wood with a sufficient thickness that is the same as that of each frame and vertical bar, only the end plate 18 will not be burned before the frame and vertical bar when it is heated during a fire. . Furthermore, the frame
Thermal foaming materials 21 or 24 are provided between 10, 11, 12, 13, 14 and the vertical bars 15, 16 and the end plate 18, respectively, and these thermal foaming materials 21 and 24 expand and expand during a fire. Since the space between the members is filled to enhance the airtightness, flame and smoke do not leak from these joints. In addition, each of the joint portions has a recess
Since they are joined by fitting of the convex portion 19 and the convex portion 19 and by fitting the concave portion 23 and the convex portion 22, the passage path of the portion through which flame or smoke passes is sufficient compared to the case where the flat surfaces are joined. It's getting longer. Moreover, since the heat-foaming material 21, 24 has a sealing effect as described above, leakage of flame and smoke is completely prevented.

That is, since the door D of this example has a higher combustion resistance than the conventional door, it is less likely to burn during a fire and has excellent fire prevention performance.

By the way, in the above-mentioned embodiment, the frames or crosspieces provided when constructing the door may be the vertical crosspieces and the horizontal crosspieces, or the required number of vertical crosspieces and horizontal crosspieces.

Further, in the above-described embodiment, an example in which the present invention is applied to a door is described because it is composed of a frame, a crosspiece and a mirror plate
The structure of the present invention can be applied not only to a door having a structure in which a plate member is nailed or a structure including a vertical member and a bar member, but also to a door such as a flush door including a bar member, a frame and a plate member. Is.

[Effect of the Invention] As described above, the present invention provides the thermal foam material between the vertical material, the horizontal material, and the plate material that compose the door, and the thermal foam material expands in volume in the event of a fire, and the thermal expansion material Since the gap is filled, airtightness is enhanced, flames and smoke are prevented from passing through the joint portion of these members, and a sufficient fire spread prevention effect is exhibited. That is, the fire door of this invention is
Since it has a higher combustion resistance than conventional fire doors, it does not burn easily in a fire and has excellent fire protection performance.

[Brief description of drawings]

1 to 3 show an embodiment of the present invention. FIG. 1 is a sectional view taken along the line AA of the door shown in FIG. 2, FIG. 2 is a front view of the door, and FIG. It is a BB sectional view taken on the line of FIG. D: Door, 10,11 ... Vertical frame (vertical material), 12 ... Upper frame (horizontal material), 13 ... Lower frame (horizontal material), 14 ... Middle frame (horizontal material), 15, 16 …… Vertical bar (vertical material), 18 …… End plate (plate material), 19,22 …… Convex portion, 20,23 …… Recessed portion, 21,24 …… Thermal foam material.

Claims (1)

[Scope of utility model registration request] 1. A fireproof door constructed by joining at least one of a vertical member such as a vertical frame or vertical bar, a horizontal member such as a horizontal frame or horizontal bar, and a plate member such as a mirror plate at each end. Form either a recess or a protrusion at the end of each joint between the material, the horizontal member, and the plate, and insert a thermal foam material between the recess and the protrusion to fit the protrusion into the recess. The structure of the fire door is characterized by