JP2004052450A - Flush door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flush door which reduces the occurrence of torsion etc. caused by warpage and distortion, and is made excellent in the hygiene of a human body by preventing the generation of toxic gas in case of fire while maintaining fire-resistant heat-insulating properties. <P>SOLUTION: In this flush door 1, a base plate 13 is formed on a core material 11 via a joining body 12. A moisture-proof layer 14, into which an adsorbent is mixed, is formed on the base plate 13; a decorative plate 15 is formed on the layer 14; and a hollow part 16 is formed in a part which is enclosed with the core material 11 and the base plate 13. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a flash door used as an interior material or an exterior material.
[0002]
[Prior art]
Conventionally, there are roughly the following two types of flash doors. One of them is a flash door 9 having a hollow portion 96 as shown in FIG. The flash door 9 has a hollow portion 96 in the center and a wood member made of a plywood, a laminated veneer (LVL) and a laminated wood is used as a core 91, and plywood and a medium fiberboard (MDF) are provided on both side surfaces thereof. ), And a decorative plate 95 made of a veneer or a vinyl chloride sheet or the like is attached to both surfaces of the substrate 93.
[0003]
The flash door 9 is generally installed between the inside and outside of an airtight house, at the boundary between two different environmental conditions such as a room and a room, and a room and a corridor.
[0004]
However, the flash door 9 has a problem that moisture is absorbed by the substrate 93, and contraction and expansion occur due to movement of heat or moisture, thereby causing warpage and twisting. Also, the sound insulation is not excellent.
[0005]
The other is a flash door 9 in which a hollow portion 96 is filled with a plastic foam 97 as shown in FIG. However, the flash door 9 degrades plastics at 700 to 800 ° C. or less when a fire occurs and generates toxic gas, which is not preferable for human health.
[0006]
[Problems to be solved by the invention]
Therefore, the present invention has been made in view of the above problems, and an object of the present invention is to reduce the occurrence of torsion or the like due to warpage or distortion, and to maintain fire-insulating properties while preventing fire. It is an object of the present invention to provide a flash door which is superior in human health by preventing the generation of toxic gas.
[0007]
[Means for Solving the Problems]
In order to solve the above problems, a means adopted by the present invention is to form a substrate on a core material via a joined body, form a moisture-proof layer containing an adsorbent on the substrate, A decorative plate is formed thereon, and a hollow portion is formed in a portion surrounded by the core material and the substrate.
[0008]
According to the first aspect of the present invention, the moisture-proof layer prevents moisture in the air from directly entering (passing) through the decorative board into the substrate or the core material, and the moisture in the substrate or the core material is prevented. Movement can be prevented. Accordingly, it is possible to prevent distortion and stress from occurring due to the movement of moisture in the substrate and the core material, and to prevent warpage and twisting of the entire flash door.
[0009]
According to a second aspect of the present invention, in the flash door according to the first aspect, the moisture-proof layer is a mixture of any one selected from activated carbon, activated clay, zeolite, and bentonite, or a mixture thereof. It is characterized by comprising an adhesive or a sticky sheet.
[0010]
According to the means of the second aspect, it is possible to more effectively adsorb moisture and release moisture for a long period of time.
[0011]
According to a third aspect of the present invention, in the flash door according to the first or second aspect, the hollow portion is filled with an inorganic lightweight foam through a filling port. Features.
[0012]
According to the third aspect of the present invention, by using the inorganic lightweight foam, fire and heat insulation can be maintained and generation of toxic gas can be prevented.
[0013]
According to a fourth aspect of the present invention, in the flash door according to the third aspect, the inorganic lightweight foam is made of any one of perlite, vermiculite, and shirasu balloon having closed cells, or a mixture thereof. It is characterized by:
[0014]
According to the means of the fourth aspect, a fire of 1000 ° C. or lower does not thermally decompose and can efficiently prevent the generation of toxic gas.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments of the present invention will be described based on examples with reference to the drawings. In the flash door 1 of the present invention, a substrate 13 is formed on a core material 11 via a bonded body 12, and a moisture-proof layer 14 containing an adsorbent is formed on the substrate 13. Further, a decorative plate 15 is formed on the moisture-proof layer 14, and a hollow portion 16 is formed in a portion surrounded by the core material 11 and the substrate 13.
[0016]
The core member 11 includes a vertical crosspiece and a horizontal crosspiece, and forms a frame of the flash door 1. The vertical bar and the horizontal bar are joined by concave-convex fitting and cut-fitting. As the core material 11, a conventional material can be used, and for example, a wood square material, a plastic molding material, a lightweight metal molding, or the like is used. Examples of the wooden lumber include rectangular lumbers such as cedar and cypress, and examples of the plastic moldings include urethane resin extruded moldings and lightweight metal moldings.
[0017]
The substrate 13 is used for providing the rigidity of the flash door 1 and may be a conventionally used one, for example, a plywood, a particle board, a plastic molded plate, a lightweight metal molded plate, or the like. . In the case of a wooden material, it is preferable that these substrates 13 be sufficiently dried and have a water content of 50% or less.
[0018]
The moisture-proof layer 14 uses, for example, an adhesive or a sticky sheet material in which any one selected from activated carbon, activated clay, zeolite, bentonite, or a mixture thereof is mixed. Moreover, you may use the papermaking paper which made these.
[0019]
As the decorative board 15, a conventional one can be used. For example, a veneer, a vinyl chloride resin printed sheet, a melamine decorative board, or the like is used.
[0020]
As the joined body 12, for example, an adhesive such as an adhesive or a screw nut is used. A phenol resin, a vinyl acetate resin, or the like is used as an adhesive between the wooden timber and the plywood. When a lightweight metal molded body is used as the core material 11 and a lightweight metal molded plate is used as the substrate 13, for example, an epoxy resin, a modified phenol resin, or the like is used as the adhesive.
[0021]
Further, it is preferable that the hollow portion 16 is filled with an inorganic lightweight foam 17 as described above. This is because sound insulation and fire-resistant heat insulation can be improved. In addition, the inorganic lightweight foam 17 is, for example, using a high-speed air carrier, while vacuum sucking the inorganic lightweight foam 17 placed in the container, using a carrier such as a hose and a filling auxiliary tool 112 to form a hollow portion. It is preferable that the inside of the nozzle 16 is continuously filled. This is because the productivity of the filling operation is significantly improved.
[0022]
As the inorganic lightweight foam 17, one having closed cells such as perlite, vermiculite, and shirasu balloon is used. This is suitable as a fire-resistant heat insulating material because it has closed cells to block the transfer of heat and has heat resistance that does not decompose below 1000 ° C. in a fire. In addition, if the hollow portion 16 is filled with the inorganic lightweight foam 17, the sound insulation will be excellent.
[0023]
It should be noted that the addition of ordinary means as a door, such as the provision of an aluminum sash frame or the like around the frame of the flash door 1 or the provision of a door handle, can be appropriately performed according to the convenience of those skilled in the art.
[0024]
Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.
(Example 1)
[0025]
First, in the present embodiment, as shown in FIGS. 1 and 2, a substrate 13 made of plywood was formed on the surface of a core material 11 made of a woody timber with a phenol resin as a joined body 12 interposed therebetween. Next, on this substrate 13, a moisture-proof layer 14 made of paper made from activated carbon as an adsorbent was formed. At this time, the moisture-proof layer 14 was stuck on both sides of the substrate 13 in a well-balanced configuration. Further, a decorative plate 15 made of a veneer was formed on the moisture-proof layer 14, and a hollow portion 16 was formed in a portion surrounded by the core material 11 and the substrate 13.
[0026]
As a result, the moisture content absorbed through the decorative plate 15 of the flash door 1 becomes uniform, and the moisture on both sides is balanced, so that the flash door 1 does not warp.
[0027]
That is, the adsorbent first absorbs the moisture in the air via the decorative board 15. As a result, moisture does not transfer to the substrate 13 on the inner side. Therefore, there is no movement of moisture in the substrate 13 and no warping occurs. The water absorbed in the adsorbent is gradually released into the air over a long period.
[0028]
(Example 2)
Next, another embodiment will be described. The second embodiment is different from the first embodiment only in that the materials of the substrate 13 and the moisture-proof layer 14 are changed.
[0029]
The flash door 1 of the second embodiment is a modification of the material of the substrate 13 and the moisture-proof layer 14 of the flash door 1 of the first embodiment.
[0030]
The substrate 13 was a strand board, and the moisture-proof layer 14 was a resin-impregnated paper mixed with an adsorbent of activated carbon and zeolite. As a forming method, a method of thermocompression bonding is adopted.
[0031]
Compared with the first embodiment, the use of a strand board for the substrate 13 results in excellent sound insulation, and the use of activated carbon and zeolite for the moisture-proof layer 14 results in excellent adsorption.
[0032]
(Example 3)
Next, still another embodiment will be described.
The flash door 1 according to the third embodiment is obtained by filling the hollow portion 16 of the flash door 1 according to the second embodiment with an inorganic lightweight foam 17.
[0033]
As shown in FIGS. 3 and 4, a filling port 111 is provided in the core material 11. Through the filling port 111, the hollow hollow part 16 is filled with the inorganic lightweight foam 17 using a filling auxiliary tool 112 or a high-speed air carrier.
[0034]
After the filling, the filling port 111 is covered with a stopper 113 made of a rubber stopper or the like having the same shape in order to cover the filling port 111.
[0035]
As described above, the present invention has been described based on the embodiments. However, the present invention is not limited to the above embodiments, and various improvements and modifications can be made without departing from the gist of the present invention.
[0036]
【The invention's effect】
According to the first aspect of the present invention, the movement of moisture and the movement of heat can be prevented, so that the warp and twist of the flash door can be prevented.
[0037]
By using the material according to the second aspect, the effect of the first aspect can be exhibited more efficiently.
[0038]
According to the third aspect of the present invention, it is possible to improve the fire and heat insulation and the sound insulation of the flash door. This is because sound insulation is considered to be able to reduce transmission of sound (sound waves) by filling the hollow portion with an inorganic lightweight foam rather than forming a void.
[0039]
According to the fourth aspect of the present invention, generation of toxic gas at 1000 ° C. or lower can be prevented.
[Brief description of the drawings]
FIG. 1 is a front view of a flash door according to Embodiments 1 and 2 of the present invention.
FIG. 2 is a cross-sectional view taken along line AA of FIG. 1 of the flash doors of the first and second embodiments.
FIG. 3 is a front view of a flash door according to a third embodiment.
FIG. 4 is a cross-sectional view of the flash door of the third embodiment, taken along line BB in FIG. 3;
FIG. 5 is a sectional view showing an example of a conventional flash door.
FIG. 6 is a cross-sectional view showing another example of a conventional flash door.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Flash door 11 Core material 12 Joint body 13 Substrate 14 Moisture-proof layer 15 Decorative board 16 Hollow part 17 Inorganic lightweight foam 111 Filling port

Claims (4)

A substrate is formed on the core material via the joined body, a moisture-proof layer containing an adsorbent is formed on the substrate, a decorative plate is formed on the moisture-proof layer, and the core material and the substrate are used. A flash door, wherein a hollow portion is formed in an enclosed portion. The flash door according to claim 1, wherein the moisture-proof layer is made of an adhesive or an adhesive sheet in which any one selected from activated carbon, activated clay, zeolite, and bentonite or a mixture thereof is mixed. . The flash door according to claim 1, wherein the hollow portion is filled with an inorganic lightweight foam through a filling port. The flash door according to claim 3, wherein the inorganic lightweight foam is made of any one of perlite, vermiculite, and shirasu balloon having closed cells, or a mixture thereof.

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