JP3870710B2 - Soundproof panel mounting structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a soundproof panel mounting structure, and more particularly to a soundproof panel mounting structure capable of improving the sound insulation performance of a wall surface region.
[0002]
[Prior art]
As a soundproof panel used for a wall surface of a soundproof room or the like, for example, one having a structure disclosed in Japanese Patent Application Laid-Open No. 7-331863 is known. This soundproof panel is composed of a frame member having a substantially rectangular shape in plan view, a pair of plate members affixed to both front and back sides of the frame member, and a gypsum board attached to at least one inner surface side of each plate member. And a sound insulating plate made of a plurality of divided pieces. Each of the sound insulating plates is fixed to the plate material with an adhesive in a state where a slight gap is interposed between the respective end portions.
[0003]
[Problems to be solved by the invention]
However, in the soundproof panel, each sound insulation plate is fixed in a state of being in close contact with the plate material, and an air layer is hardly formed between each sound insulation plate and the plate material. Cannot be obtained, and sound leakage from a gap existing between adjacent sound insulation plates also occurs, so that sufficient sound insulation performance cannot be obtained. Moreover, since the sound insulation board is located in the interior space of the sound insulation panel, there is also a disadvantage that the sound absorption effect by the sound insulation board cannot be expected.
[0004]
OBJECT OF THE INVENTION
The present invention has been devised by paying attention to such inconveniences, and the object thereof is to provide soundproofing that can improve sound insulation performance while providing sound absorption performance to a wall surface area in a predetermined indoor space. It is to provide a panel mounting structure.
[0005]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is a structure in which a soundproof panel is attached to a main body wall forming a predetermined indoor space,
The soundproof panel is formed by bringing the end portions of a plurality of panel forming plates into close contact with each other in the abutting direction, and each panel forming plate forms a closed air layer with the main body wall. In this state, it is attached to the main body wall through the joining means so as to be able to vibrate independently ,
The joining means is composed of hook-and-loop fasteners provided at a plurality of points between the main body wall and the panel forming plate,
A sponge packing is interposed between each panel forming plate and the main body wall, and this sponge packing is arranged along the outer periphery of the back side of each panel forming plate . According to such a configuration, since the soundproof panel is composed of a plurality of panel forming plates that can vibrate independently from each other, the maximum value of bending due to bending vibration of the soundproof panel is more than that when the soundproof panel is a single plate. Since the end portions of the panel forming plates are in close contact with each other, sound leakage from the gaps between the panel forming plates can also be prevented. In addition, since a closed air layer is formed between each panel forming plate and the main body wall, a phase difference of vibration is generated between each panel forming plate and the main body wall, and vibration energy due to the phase difference is generated. Internal loss can also be generated. Therefore, these actions combined with each other can enhance the sound insulation effect on the wall surface region than before, especially when a sound absorbing material such as rock wool for imparting a sound absorbing effect is used as a soundproof panel. Even so, a predetermined sound insulation effect can be obtained. In this case, since the soundproof panel is not provided in the internal space of the main body wall, it is also possible to obtain a sound absorption effect by the soundproof panel.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The soundproof panel according to the present invention preferably has a configuration in which the Young's modulus is set within the range of 1.0 × 10 ⁵ (N / m ² ) to 1.0 × 10 ⁸ (N / m ² ). The With this configuration, a phase difference between each vibration-proof panel and main body wall is more likely to occur than a sound-proof panel made of gypsum board having a Young's modulus of about 1.0 × 10 ⁹ (N / m ² ). That is, it is possible to reduce the phenomenon (coincidence effect) that the sound insulation performance is lowered in the high frequency range of 2 kHz to 4 kHz.
[0007]
Moreover, the structure that the partial expansion part of the said air layer is formed in at least one attachment surface side among each attachment surface of the said main body wall and a soundproof panel is also employable. Thereby, since the closed space between each soundproof panel and the main body wall is partially expanded, the internal loss of vibration energy in the closed space can be increased, and the sound insulation effect of the wall surface region can be further enhanced.
[0008]
In addition, the “main body wall” in the present specification means a general wall body to which a soundproof panel can be attached, and is used as a concept including a frame wall in addition to various wall panels.
[0009]
【Example】
Embodiments of the present invention will be described below with reference to the drawings.
[0010]
FIG. 1 is a schematic front view of a part of a wall surface region of a soundproof room to which the present invention is applied as viewed from the soundproof room side. FIG. 2 is an enlarged cross-sectional view taken along line AA in FIG. The figure is shown. In these drawings, a wall surface region 10 is configured to include a wall panel 12 as a main body wall that forms an interior space of a soundproof room, and a soundproof panel 13 attached to an inner surface portion of the wall panel 12 on the room side. ing.
[0011]
The wall panel 12 is not particularly limited, but is provided so as to be able to form the indoor space by connecting a plurality of wall panels 12 in the horizontal direction in FIG. As shown in FIG. 2, the wall panel 12 in the present embodiment includes a frame member 15 having a substantially rectangular shape in plan view, and an indoor side plate member 17 and an outdoor side plate member 18 attached to the inside and outside of the frame member 15. And a sound absorbing material 19 such as glass wool provided in an internal space surrounded by the frame material 15, the indoor side plate material 17, and the outdoor side plate material 18.
[0012]
The soundproof panel 13 is, for example, a gypsum board having a predetermined sound insulation performance and a Young's modulus of about 1.0 × 10 ⁹ (N / m ² ), and a Young's modulus of 1.0 × 10 ⁵ (N / m ² ) to Formed by a single plate made of rock wool type sound absorbing plate having a flexibility of about 1.0 × 10 ⁸ (N / m ² ), preferably about Young's modulus of about 1.0 × 10 ⁷ (N / m ² ). Has been. The soundproof panel 13 is composed of a plurality of panel forming plates 21 having a substantially rectangular shape in plan view, and each panel forming plate 21 is in a state of being in close contact with each other in the butting direction, that is, in this embodiment. Then, they are attached to the wall panel 12 in a state where they are arranged in substantially the same vertical plane. At this time, the abutting end faces of the panel forming plates 21 are not bonded to each other, and the panel forming plates 21 can vibrate independently of each other. In the present embodiment, the soundproof panel 13 is attached to the substantially entire area of the indoor side plate member 17 of each wall panel 12, and three panel forming plates 21 are used for each wall panel 12. In addition, although it does not specifically limit, as for the planar dimension of each panel formation board 21, the short width is set to about 300 mm-500 mm, and the long width is set to about 1000 mm-1500 mm.
[0013]
Each panel forming plate 21 is attached by means of joining means 23 such as known hook-and-loop fasteners provided at a plurality of locations between the wall panel 12 and the panel forming plate 21. The forming plate 21 is detachable from the wall panel 12. The joining means 23 is fixed to the first engaging portion 23A fixed to the front surface side of the indoor side plate member 17 of the wall panel 12 and the rear surface side of the panel forming plate 21 and to the first engaging portion 23A. And a second engaging portion 23B that engages in a state in which it can be separated and approached. A sponge packing 26 made of a sealing material made of vinyl chloride, rubber, urethane or the like is interposed between the wall panel 12 and each panel forming plate 21. The packing 26 is disposed along the outer periphery on the back side of each panel forming plate 21 so as to surround the joining means 23. Therefore, when the panel forming plate 21 is attached, a closed air layer 29 is formed between the wall panel 12 and each panel forming plate 21.
[0014]
FIG. 3 shows the result of a sound transmission loss experiment for confirming the sound insulation effect of the present invention.
The experiment was conducted on the four types of wall surfaces of Examples 1 and 2 and Comparative Examples 1 and 2. Here, Example 1 in FIG. 5 employs the structure of the wall surface region 10 according to the above-described example, and a gypsum board having a Young's modulus of about 1.0 × 10 ⁹ (N / m ² ) as the soundproof panel 13. It is data when using. In addition, the size of the wall panel 12 in this case was set such that the width in the horizontal direction in FIG. 1 was 900 mm and the height in the vertical direction in FIG. Further, with respect to the panel forming plate 21, the size of the two vertically oriented panel forming plates 21 located on the upper side in FIG. 1 is set to a width of 440 mm and a height of 1200 mm, respectively, while the horizontal panel forming located on the lower side in FIG. The plate 21 was 880 mm wide and 700 mm high.
Example 2 is data when the material of the soundproof panel 13 is changed with respect to Example 1. That is, here, a rock wool type sound absorbing plate having a Young's modulus of about 3.0 × 10 ⁷ (N / m ² ) was used as the soundproof panel 13.
Comparative Example 1 is data when a single gypsum board having the same Young's modulus as that of Example 1 is attached to substantially the entire surface of the same wall panel 12 as in Example 1 by the joining means 23. Under the present circumstances, the air layer which those outer peripheral parts open | release was formed between the wall panel 12 and the gypsum board without interposing the sponge packing 26. FIG.
In Comparative Example 2, compared to Comparative Example 1, data when a closed air layer is formed between the wall panel 12 and the gypsum board by interposing a sponge packing 26 along the outer peripheral portion thereof. It is.
[0015]
According to the experimental results, the configuration of the present invention in Example 1 and Example 2 shows an increase in sound transmission loss in the mid-high frequency range of 1 kHz or more than the configuration of Comparative Example 1 and Comparative Example 2, It will be clearly understood that the sound insulation performance is improved.
As is clear from the comparison between Example 1 and Comparative Example 2, it is clear from the fact that the soundproof panel 13 is composed of a plurality of panel forming plates 21 and the comparison between Comparative Example 1 and Comparative Example 2. Moreover, in addition to the formation of a closed air layer between the wall panel 12 and the gypsum board, there is nothing but the result obtained in combination with the panel forming plates 21 being brought into close contact without bonding. Further, from the comparison between Example 1 and Example 2, when a rock wool type sound absorbing plate is applied to the soundproof panel 13, not only a higher sound insulation performance than when a gypsum board is applied is obtained, but also in a high frequency range. It was also demonstrated that the coincidence effect can be suppressed.
[0016]
In the above-described embodiment, three panel forming plates 21 are used for one wall panel 12, but the present invention is not limited to this, and a multi-divided configuration may be used.
[0017]
Further, the soundproof panel 13 does not have to be attached to the substantially entire surface area of the wall panel 12, but in the case of the embodiment, the sound insulation performance of the wall surface area 10 can be greatly improved.
[0018]
Furthermore, as shown in FIG. 4, it is possible to attach the panel forming plate 21 in a state of straddling between the adjacent wall panels 12, 12. In such a case, the wall panels 12, 12 are abutted together. It is possible to improve the sound insulation performance in the portion 12A.
[0019]
Further, a panel forming plate 21 having a high sound absorbing performance such as a rock wool type sound absorbing plate and a panel forming plate 21 having a high sound insulating performance such as a gypsum board can be appropriately combined and attached to the wall panel 12. The sound insulation performance can be further enhanced in a state where the sound absorption performance of the wall surface region 10 is ensured.
[0020]
Furthermore, as shown in FIG. 5, a perforated sound absorbing plate can be used as the soundproof panel 13. In other words, the soundproof panel 13 here has a plurality of concave outer holes 33 formed on the inner surface side located on the indoor side to enhance the sound absorption effect on the indoor side, and on the outer surface side serving as a mounting surface to the wall panel 12. In addition, a plurality of concave inner holes 34 are formed. The inner hole 34 is formed at a position where the axial position shifts in the vertical direction in FIG. 5 with respect to each outer hole 33, and constitutes a partially enlarged portion of the air layer 29, whereby the wall panel 12 and It is possible to increase the sound absorption effect and the sound insulation effect due to the internal loss of vibration energy between the soundproof panels 31. The partially enlarged portion of the air layer 29 can also be formed on the inner surface of the wall panel 12 that is the mounting surface side of the soundproof panel 13.
[0021]
Further , when the panel forming plate 21 is detachable from the wall panel 12 as in the above embodiment, an arbitrary sound field can be set by changing the panel forming plate 21 or the like.
[0022]
Furthermore, in the above-described embodiment, the case where the soundproof panels 13 and 31 are attached to the flash-structured wall panel 12 is illustrated and explained. However, other wall panels such as a wall panel made of a single-layer or multi-layer plate material, concrete or the like The mounting structure according to the present invention can also be applied to the housing wall.
[0023]
【The invention's effect】
As described above, according to the present invention, it is possible to increase the sound insulation performance of the wall surface region as compared with the conventional structure while providing the sound absorbing effect by the soundproof panel to the wall surface region.
[Brief description of the drawings]
FIG. 1 is a schematic front view of a part of a wall surface area according to an embodiment as viewed from the indoor side.
FIG. 2 is an enlarged cross-sectional view taken along line AA in FIG.
FIG. 3 is a graph showing the results of a sound transmission loss test performed to confirm the effect of the present invention.
FIG. 4 is a front view similar to FIG. 1, showing a modification of the embodiment.
FIG. 5 is a cross-sectional view similar to FIG. 2, showing another modification of the embodiment.
[Explanation of symbols]
12 ... Wall panel (main body wall), 13 ... Soundproof panel, 21 ... Panel forming plate, 29 ... Air layer, 34 ... Inner hole (partial enlarged portion)

Claims (3)

A soundproof panel is attached to the body wall forming a predetermined indoor space,
The soundproof panel is formed by bringing the end portions of a plurality of panel forming plates into close contact with each other in the abutting direction, and each panel forming plate forms a closed air layer with the main body wall. In this state, it is attached to the main body wall through the joining means so as to be able to vibrate independently ,
The joining means is composed of hook-and-loop fasteners provided at a plurality of points between the main body wall and the panel forming plate,
A soundproof panel mounting structure , wherein a sponge packing is interposed between each panel forming plate and the main body wall, and the sponge packing is disposed along the outer periphery of the back side of each panel forming plate. . 2. The soundproof panel has a Young's modulus set in a range of 1.0 × 10 ⁵ (N / m ² ) to 1.0 × 10 ⁸ (N / m ² ). Soundproof panel mounting structure. The soundproof panel mounting structure according to claim 1, wherein a partial enlarged portion of the air layer is formed on at least one of the mounting surfaces of the main body wall and the soundproof panel.

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