JP2004156341A - Sound insulating/heat insulating door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sound insulating/heat insulating door used as internal/external facing materials, superior in sound insulating/sound absorbing performance and fire resistant/heat insulating performance, and reducing warp. <P>SOLUTION: This sound insulating/heat insulating door 1 is characterized in that a pair of obverse/reverse first base boards 12 are formed on the obverse/reverse of a core material 11 with a joining material; an intermediate core material 13 having a through-hole 130 is formed on the surface of each first base board 12 with the joining material; a pair of obverse/reverse backing materials 16 are formed on surfaces of the intermediate core materials 13 with the joining materials; a pair of obverse/reverse second base boards 14 and 15 are formed on reverses of the backing materials 16 with the joining materials; a pair of obverse/reverse decorative sheets 17 are formed a surfaces of the second base boards 14 with the joining materials; and an inorganic lightweight foaming body 3 or an inorganic fiber material 4 is filled in an intermediate hollow part 103 surrounded by the core material 11 and the first base boards 12. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
TECHNICAL FIELD The present invention relates to a sound insulating and heat insulating door which is used as an interior / exterior material and has excellent sound insulating properties, sound absorbing properties and fire insulating properties.
[0002]
[Prior art]
As shown in FIG. 5, the present applicant has filed a patent application for the interior and exterior material flash door with Japanese Patent Application No. 2002-213871 (July 23, 2002).
[0003]
The outline of the above application is that "a substrate 92 is formed on a core material 91 via a bonding material, a moisture-proof layer 93 mixed with an adsorbent is formed on the substrate 92, and a decorative plate is formed on the moisture-proof layer 93. 94, and a hollow door 90 is formed in a portion surrounded by the core material 91 and the substrate 92.
[0004]
Since the flash door 9 has the moisture-proof layer 93 in which the adsorbent is mixed, moisture in the air is absorbed evenly from both sides of the flash door 9, and moisture is absorbed in a well-balanced manner. Therefore, the absorbed moisture is equalized on both sides, and the movement of moisture to the core 91 below the moisture can be prevented.
[0005]
For this reason, it is possible to prevent the core material 91 from absorbing moisture, and to prevent the core material 91 from contracting or expanding due to the movement of moisture or heat, and furthermore, to prevent the flash door 9 from warping or twisting. Things.
[0006]
[Problems to be solved by the invention]
However, since the flash door 9 proposed by the present applicant and the hollow portion 90 of the “flash door” proposed in Patent Document 1 are not filled with anything, the sound insulation and the sound absorption may not always be sufficient. , Later experiments revealed.
On the other hand, the "flash door" proposed in Patent Document 2 is filled with a synthetic resin foam to improve sound insulation and sound absorption. However, during a fire, the synthetic resin foam burns and emits harmful gas. Occurred and there was a problem on human health. Moreover, as in the present invention, it was also found that the hollow portion 90 of the flash door was not filled with an inorganic lightweight foam such as pearlite, vermiculite, and shirasu balloon, so that the fire insulation was not always sufficient.
[0007]
[Patent Document 1]
Japanese Patent Application Laid-Open No. 09-112147 [Patent Document 2]
JP-A-07-18953
Therefore, the present invention has been made in view of the above two problems, and the problem to be solved by the present invention is that sound insulation, sound absorption and fire insulation are excellent, and warping as in the earlier application is required. An object of the present invention is to provide a sound-insulating and heat-insulating door having a characteristic of less occurrence.
Hereinafter, the contents of the present invention will be specifically described with reference numerals in the drawings.
[0009]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, a means adopted by the present invention is to form three hollow portions, a first hollow portion 101, a second hollow portion 102, and an intermediate hollow portion 103, instead of the conventional hollow portion 90, The hollow portion 103 is filled with the inorganic lightweight foam 3 and the inorganic fiber material 4 in the heat-resistant bags 30 and 40 to improve the sound insulation and sound absorption and the fire resistance and the heat insulation, and the first hollow portion 101 and the second hollow portion. 102 is characterized by forming an air resonance layer to particularly improve sound insulation and sound absorption.
[0010]
The first aspect of the invention is to form a pair of front and back first substrates 12 on the front and back surfaces of a core material 11 via a bonding material (not shown). A pair of front and back intermediate cores 13 having through holes 130 are formed through a bonding material, and a pair of front and back backing materials 16 are formed on the surface of the intermediate core 13 through a bonding material. A pair of front and back second substrates 14 and 15 are formed on the front and back surfaces of the second substrate 14 and 15 via a bonding material, and a pair of front and back decorative plates 17 are formed on the surfaces of the second substrates 14 and 15 via a bonding material. The intermediate hollow portion 103 surrounded by the material 11 and the first substrate 12 is filled with the inorganic lightweight foam 3.
[0011]
Thereby, the sound insulation and heat insulation door 1 as a flash door excellent in sound insulation, sound absorption and fire resistance can be provided. Therefore, it is particularly useful as an entrance door or a partition door between an indoor room and an outside room that requires tranquility in which sound insulation is particularly important, such as a study room or a study room.
[0012]
Next, a means adopted by the invention according to claim 2 is that the first hollow portion 101 and the second hollow portion 102 surrounded by the first substrate 12, the intermediate core material 13, and the backing material 16 are air resonance layers. It is characterized by the following.
As a result, since the intermediate core 13 has the through-holes 130, the sound absorption characteristics and the resonance absorption effect are increased, and the remaining sound absorption characteristics are increased, so that the sound insulation of the door is improved.
[0013]
Means adopted by the invention according to claim 3 is that the inorganic lightweight foam 3 or the inorganic fiber material 4 is made of perlite, vermiculite, shirasu balloon or inorganic fiber material filled in the heat resistant bags 30 and 40. It is characterized by having.
Accordingly, in relation to the air resonance layer and the through-holes 130, a fiber film effect of an inorganic fiber material or the like filled in the intermediate hollow portion 103 and a sound absorption characteristic of the inorganic lightweight foam, particularly a residual sound absorption characteristic in a low / middle sound region. And the sound insulation of the door is improved, and the fireproof and heat insulating properties are also improved.
[0014]
The means adopted by the invention described in claim 4 is characterized in that the means contains an adsorbent. As a result, similarly to the previous application (Japanese Patent Application No. 2002-213871), it is possible to provide the sound insulating and heat-insulating door 1 with less occurrence of warpage, and the expansion and contraction of the wood fiber is caused by the effect of the moisture-proof layer containing the adsorbent. It decreases and the dimensional change rate decreases.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments of the present invention will be specifically described with reference to the drawings based on embodiments in the examples.
[0016]
Examples of the core material 11 or the first substrate 12 and the second substrates 14 and 15 used in the present invention include reinforced plywood, medium density fiberboard, strand board, formalized wood, acetylated wood, paraffin-injected wood, and resin-injected wood. In particular, there is a laminated wood effectively utilizing construction waste having anisotropic fiber direction.
[0017]
Examples of the heat-resistant bag include a bag made of aluminum foil, a bag made of glass fiber cloth, and a fire-resistant fireproof cloth bag.
The inorganic lightweight foam 3 includes, for example, perlite 31, vermiculite 32, shirasu balloon 33, and the like. On the other hand, examples of the inorganic fiber material 4 include glass fiber, rock wool (rock wool), and ceramic fiber.
[0018]
Examples of the bonding material include a phenol resin, a vinyl acetate resin, a urea resin, a melamine resin, and a modified or blended resin thereof. On the other hand, examples of the adsorbent include activated clay, activated carbon, zeolite, bentonite, and ion exchange resin.
[0019]
Examples of the decorative board 17 include a veneer, a melamine decorative board, and a vinyl chloride resin printed sheet.
Examples of the backing material 16 include a lauan thin plate, a thin plate of various kinds of wood such as softwood or hardwood, various synthetic resin sheets, a cloth cloth, and a glass fiber sheet. This absorbs moisture in the air and suppresses the movement of moisture and heat in the core material 11, the first substrate 12, the intermediate core material 13, the second substrates 14, 15, the backing material 16, the decorative board 17, and the like. In addition, it is possible to prevent the entire door from being warped or twisted.
[0020]
In the sound-insulating and heat-insulating door 1 of the present invention, an aluminum sash frame or the like is provided in the same manner as a normal flash door, or a door handle (knob) is provided. can do.
Hereinafter, preferred embodiments of the present invention will be specifically described with reference to the drawings.
[0021]
(Example 1)
As shown in FIG. 1, the present embodiment is different from the conventional flash door 9 in that it provides a sound-insulating and heat-insulating door 1 having a first hollow portion 101, a second hollow portion 102, and an intermediate hollow portion 103 at the center thereof. .
[0022]
A first substrate 12 is formed on a core material 11 via a bonding material (not shown), and an intermediate core material 13 having a through hole 130 is formed on the first substrate 12 via a bonding material. As the core material 11, a square material of medium specific gravity fiber material was used. As the first substrate 12, a laminated material having the above characteristics was used.
[0023]
As the laminated material, a random directional fiber material in which the direction of the wood fiber was multidirectional and random was used. As a result, as described below, an intermediate core material 13 having improved residual sound absorption characteristics in the low / medium sound region, excellent resonance absorption effect, and less occurrence of warpage of the door was obtained.
[0024]
As a joining material, a modified phenol resin adhesive was used. Mixed fine powder of bentonite and activated carbon was mixed as an adsorbent into this joining material. This forms an excellent moisture-proof layer that absorbs moisture in the air and does not transfer moisture to the core material 11 and the intermediate core material 13 that cause warpage of the door.
[0025]
A backing material 16 is formed on the intermediate core material 13 via the same bonding material as described above, and second substrates 14 and 15 are formed via the bonding material in the same manner as the backing material 16. The decorative board 17 was formed on the substrates 14 and 15 with the same bonding material interposed. As the second substrates 14 and 15, wood made of laminated wood was used. The decorative board 17 was a melamine decorative board. As a result, it was possible to obtain the sound-insulating and heat-insulating door 1 having excellent durability on the door surface.
[0026]
In the intermediate hollow portion 103 surrounded by the core material 11 and the first substrate 12, a heat-resistant bag 30 filled with the inorganic lightweight foam 3 is arranged in parallel in a specific direction.
As the inorganic lightweight foam 3, a substantially uniform mixture of perlite 31, vermiculite 32, and shirasu balloon 33 was used.
[0027]
Further, a glass fiber cloth bag was used as the heat resistant bag body 30. The heat-resistant bag 30 has a flat elliptical spherical shape, and is disposed so as to stand vertically. Thereby, a relatively large number of heat-resistant bags 30 could be filled. As a result, as described later, the sound insulating and heat-insulating door 1 having excellent sound absorbing properties was obtained.
[0028]
It should be noted here that, as shown in FIG. 2, the sound absorption coefficient (%) according to the reverberation chamber method is determined for each of the first hollow portion 101 and the second hollow portion 102 by the frequency (through-hole fiber membrane). When the measurement was performed while changing the ratio, the one having the through hole 130 in the intermediate core material 13 (a) and the one not having the through hole (b) were compared with those of the present invention. It turned out to show. This is because it is presumed that the through-holes 130 of the intermediate core 13 improve the residual sound absorption characteristics due to the resonance absorption effect and exhibit excellent sound absorption characteristics.
[0029]
Therefore, the first hollow portion 101 and the second hollow portion 102 formed by being surrounded by the intermediate core material 13 having the through hole 130 and the first substrate 12 are excellent in sound absorption characteristics and resonance absorption effect called an air resonance layer. It is assumed that sound insulation is formed.
[0030]
Next, as shown in FIG. 3, when the heat-resistant bags 30 in which the inorganic lightweight foam 3 is filled are arranged in the intermediate hollow portion 103, the heat-resistant bags 30 are particularly low in weight compared to the hollow one in which the heat-resistant bags are not arranged. The sound absorption characteristic of about 10 times was shown in the middle sound area. This is presumed to be due to the fact that excellent residual sound absorption properties are exhibited by the fiber film effect of the ceramic fiber bag 30 of the inorganic lightweight foam 3 and the sound absorption properties are improved.
[0031]
As described above, according to this example, the first hollow portion 101 and the second hollow portion 102 form an air resonance layer to exhibit a resonance absorption effect, and the inorganic lightweight foam 3 filled in the intermediate hollow portion 103 is formed. By improving the residual sound absorbing properties of the inorganic fiber material, the sound insulating and heat insulating door 1 having excellent sound insulating properties, sound absorbing properties and fire insulating properties could be obtained.
[0032]
(Example 2)
In this example, as shown in FIG. 4, an inorganic fiber material 4 was used in place of the inorganic lightweight foam 3 in Example 1. Further, a second substrate 15 made of a laminated material having the above characteristics is used instead of the second substrate 14 in the first embodiment.
[0033]
Since the second substrate 15 uses a laminated material made of wood fibers having an omnidirectional property, the dimensional change rate is about half that of the conventional laminated material. This is because the conventional laminated wood is mainly coniferous wood in which the wood fibers are arranged in the same direction, whereas the laminated wood used in this example is multidirectional and the wood fibers are randomly arranged. by.
[0034]
The dimensional change rate of the wood is considered to be easily influenced by the movement of moisture in the longitudinal direction of the wood fiber, that is, the movement of heat due to moisture absorption, drying and temperature change.
[0035]
In the present embodiment, a laminated wood obtained by layering and joining selected materials such as zelkova, oak, beech and the like of hardwood so that the wood fibers are random is used as effective recycling of construction waste materials.
[0036]
Therefore, according to the present example, it is possible to actively promote effective use of resources by using the second substrates 14 and 15, and to contribute to a recycling-based society.
[0037]
Further, by using the glass fiber cloth bag 40 and the glass fiber filled therein, the resonance absorption effect and the residual sound absorption characteristics of the fiber film could be improved as compared with Example 1.
[0038]
As described above, the present invention has been described on the basis of the above-described embodiments. However, since these are one embodiment of the present invention, the present invention is not limited to these embodiments, and various other improvements and modifications can be made without departing from the essence. Deformation is possible.
[0039]
【The invention's effect】
As described above, the present invention is constituted by the inventions set forth in claims 1 to 4, and exhibits various excellent effects as described below.
[0040]
According to the first aspect of the present invention, it is possible to provide the sound insulation and heat insulating door 1 as a flash door having excellent sound insulation and sound absorption and fire insulation. Therefore, it is possible to provide the sound-insulating and heat-insulating door 1 that is particularly suitable for doors that require particularly quiet and sound-insulating properties, such as entrance doors, study rooms, and study rooms.
[0041]
According to the second aspect of the present invention, since the intermediate core 13 has the through-holes 130, the sound absorption characteristics and the resonance absorption effect are increased, and the remaining sound absorption characteristics are increased, so that the sound insulation of the door is improved. Become.
[0042]
According to the invention described in claim 3, the fiber membrane effect of the inorganic fiber material 4 filled in the intermediate hollow portion 103 in relation to the air resonance layer and the through hole 130 and the sound absorbing property of the inorganic lightweight foam 3 are particularly low. -The residual sound absorption characteristics and the resonance absorption effect in the middle sound region are improved, the sound insulation of the door is improved, and the heat insulation and heat resistance are also improved.
[0043]
According to the fourth aspect of the present invention, as in the previous application (Japanese Patent Application No. 2002-213871), it is possible to obtain the sound-insulating and heat-insulating door 1 with less occurrence of warpage, and the effect of the moisture-proof layer containing the adsorbent. The effect reduces the expansion and contraction of the wood fiber and reduces the dimensional change rate.
[0044]
Therefore, it is possible to obtain the sound insulating and heat-insulating door 1 which is excellent in dimensional stability, high in accuracy and less likely to warp.
As described above, according to the present invention, it is possible to provide a sound-insulating and heat-insulating door 1 that is excellent in sound-insulating and sound-absorbing properties and fire-insulating properties, and that causes less warpage.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view of a sound insulating and heat insulating door according to Embodiment 1 of the present invention.
FIG. 2 is an explanatory diagram of a resonance absorbing effect of a first hollow portion and a second hollow portion in the sound insulating and heat insulating door.
FIG. 3 is an explanatory diagram of a residual sound absorbing characteristic of an intermediate hollow portion in the sound insulating and heat insulating door.
FIG. 4 is a cross-sectional view of a sound-insulating and heat-insulating door according to Embodiment 2 of the present invention.
FIG. 5 is a cross-sectional view of a conventional sound-insulating and heat-insulating door.
[Explanation of symbols]
REFERENCE SIGNS LIST 1 sound insulation and heat insulating door 11 core material 12 first substrate 13 intermediate core material 130 through hole 14, 15 second substrate 16 backing material 17 decorative board 3 inorganic lightweight foam 4 inorganic fiber material 30 ceramic fiber bag 40 glass fiber cloth bag

Claims (4)

Forming a pair of front and back first substrates on the front and back surfaces of the core via a bonding material, forming a pair of front and back intermediate cores having through holes on the front surface of the first substrate via the bonding material; A pair of front and back backing materials are formed on the intermediate core material via a bonding material, and a pair of front and back second substrates are formed on the back surface of the backing material via a bonding material, and on the surface of the second substrate Form a pair of front and back decorative boards via the bonding material,
An intermediate hollow portion surrounded by the core material and the first substrate is filled with an inorganic lightweight foam or an inorganic fiber material. The sound insulation and heat insulating door according to claim 1, wherein the first hollow portion and the second hollow portion surrounded by the first substrate, the intermediate core material, and the backing material are air resonance layers. The sound insulating door according to claim 1, wherein the inorganic lightweight foam or inorganic fiber material is perlite, vermiculite, shirasu balloon or inorganic fiber material filled in a heat-resistant bag. The sound-insulating and heat-insulating door according to claim 1, wherein the joining material contains an adsorbent.

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