JPH08128127A - Sound insulation panel - Google Patents

Abstract

PURPOSE: To improve sound insulation performance by a method wherein a plurality of frames are formed by framing a core material, an intermediate material is located between the plurality of the frames, and the surface and the reverse of the frame are covered with respective surface and reverse materials. CONSTITUTION: A sound insulation panel 1 is used as the wall material of a sound insulation room. When facing material 2 is mounted with the facing material opposing to the inside of a room, when a sound is generated at the interior of the sound insulation room, a part of a sound is insulated and absorbed by the facing material 2 and a remaining sound permeates the facing material 2. After a sound permeating the facing material 2 is remarkably damped by a first air layer 9 and absorbed by a sound absorbing material 7, it runs toward an intermediate face material 4. After a sound is insulated and absorbed by the intermediate face material 4, a sound permeating the intermediate face material 4 is further eminently damped by a second air layer 10 and absorbed by the sound absorbing material 7. Further, after the sound is insulated and absorbed by a reverse material 6, it flows to the back side of the reverse material 6.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soundproof panel used as a wall material in a room for soundproofing.

[0002]

2. Description of the Related Art As a conventional soundproof panel, face materials are attached to the front and back surfaces of a frame in which a core material is framed in a rectangle.
A so-called flash structure is known. In this soundproof panel, soundproofing is mainly performed by sound insulation and sound absorption by the front and back face materials and sound absorption by an air layer formed between the core material and the front and back face materials. In order to further improve the soundproof performance of such a soundproof panel, the thickness of the air layer is increased, a sound absorbing material, a gypsum board or a steel plate is inserted in the air layer, or the surface density of the face material is increased. Something that has been done is also known.

[0003]

However, among such conventional soundproofing panels, the one having a large air layer thickness causes the thickness of the soundproofing panel to increase accordingly.
A sound-insulating material obtained by simply inserting a sound absorbing material into the air layer has a limit. Further, a soundproof panel in which a gypsum board or a steel plate is inserted in the air layer or a surface material having a high surface density is difficult to handle during assembly because the materials themselves are heavy, and the weight of the soundproof panel as a whole is large. Since it becomes large, there is a drawback that it is difficult to perform construction.

The present invention has been made to solve the above problems, and an object thereof is to provide a soundproof panel capable of improving soundproof performance without increasing weight and thickness. There is.

[0005]

In order to achieve this object, a soundproof panel of the present invention is provided with a plurality of frameworks formed by framing a core material, and interposed between these frameworks. It is characterized in that it is provided with an intermediate surface material for partitioning between the frameworks, and a surface material and a back surface material respectively covering the front and back surfaces of the framework.

In this case, it is preferable that the frame is filled with a sound absorbing material.

In these cases, it is preferable that at least one of the front surface material and the back surface material is a perforated plate.

Further, in these cases, it is preferable that at least two of the surface material, the back surface material and the intermediate surface material are made of materials different from each other and / or areal density.

[0009]

In the soundproof panel according to claim 1, a plurality of frames are partitioned from each other by an intermediate surface material, and the front and back surfaces of the frame are covered with the front and back surface materials, respectively, so that the plurality of frames are separated from each other by the intermediate surface material. Air layers are formed within the framework. For this reason, for example, the sound generated outside the surface material is sound-insulated and absorbed by the surface material, is attenuated by the air layer on the surface material side, is sound-insulated and absorbed by the intermediate surface material, and is further absorbed by the back surface material. After being attenuated by the air layer and finally being insulated and sound-absorbed by the backing material, it goes to the outside of the backing material. In this way, the sound insulation by the intermediate surface material
By performing at least two stages of attenuation by the air layer through sound absorption, the soundproofing performance can be improved without increasing the weight or thickness. Moreover, since the intermediate surface material acts to suppress the sound bridge due to the solid propagation between the frames, the soundproofing performance is further enhanced.

In the soundproof panel according to the second aspect, the soundproof performance is further enhanced by the sound absorbing action of the sound absorbing material filled in the air layer.

In the soundproof panel according to the third aspect, at least one of the front surface material and the back surface material is formed of a perforated plate, so that the sound absorbing function further enhances the soundproof performance.

In the soundproof panel according to the fourth aspect, since the surface material, the back surface material, and the intermediate surface material are different in at least two materials and areal densities, the soundproof panel is less likely to resonate and the soundproof performance is further enhanced.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the drawings.

1 and 2 show a soundproof panel according to a first embodiment of the present invention. As shown in these figures, the soundproof panel 1 has a flash structure in which a surface material 2, a first frame 3, an intermediate surface material 4, a second frame 5, and a back surface material 6 are sequentially laminated. is there. Further, sound absorbing materials 7 and 7 are filled in the first and second frameworks 3 and 5, respectively.

The first and second frameworks 3 and 5 have the same size and thickness as each other, and the core material 8 made of square lumber such as muku lumber or plywood is framed in a rectangular shape, respectively. Formed (see FIG. 2). Sound absorbing material 7
Is made of porous material such as glass wool, rock wool and foam material.

The front surface material 2 and the back surface material 6 are respectively the first
The front surface (front surface) of the framework 3 and the rear surface (rear surface) of the second framework 5
It is adhered to these so as to cover them. The intermediate surface material 4 is interposed between the first and second frameworks 3 and 5,
They are adhered while being sandwiched between them. As a result, the first air layer 9 is formed in the space defined by the surface material 2, the first framework 3 and the intermediate surface material 4, and similarly, the first air layer 9 is defined by the intermediate surface material 4, the second framework 5 and the back surface material 6. Second in the created space
The air layer 10 is formed.

The surface material 2, the back surface material 6 and the intermediate surface material 4 are
Particle board, plywood, wood board such as hard board and MDF, gypsum board, metal board such as steel plate and aluminum board,
It can be composed of a resin plate such as vinyl chloride or acrylic, or a sound insulating sheet, and an appropriate material is selected from these materials depending on the cost and weight of the material and the soundproof performance to be obtained. .

For example, when cost and lightness are important, it is advantageous to select a wooden board, or when extremely high soundproof performance is desired, a metal plate or a sound insulating sheet is selected. Is advantageous. Also, the surface material 2,
As the back surface material 6 and the intermediate surface material 4, it is preferable to select materials having different materials and / or areal densities,
Thereby, the soundproof panel 1 can be made difficult to resonate.

In the soundproof panel 1, as shown in FIG. 2, a first frame 3, an intermediate surface material 4, a second frame 5, and a back surface material 6 are sequentially laminated on and bonded to a surface material 2. Manufactured by. Further, the sound absorbing material 7 is inserted into the first and second frameworks 3 and 5 at the time of stacking and bonding.

Next, the soundproofing operation of the soundproof panel 1 having the above structure will be described. Here, it is assumed that the soundproof panel 1 is used as a wall material of a soundproof room and the surface material 2 is attached to the inside of the room. In this state, when a sound is generated inside the soundproof room, a part of the sound is intercepted and absorbed by the surface material 2, and the rest is transmitted through the surface material 2. The sound transmitted through the surface material 2 is greatly attenuated by the first air layer 9 and is absorbed by the sound absorbing material 7, and then travels to the intermediate surface material 4. Then, after being intercepted and absorbed by the intermediate surface material 4, the sound transmitted through the intermediate surface material 4 is further attenuated by the second air layer 10 and also absorbed by the sound absorbing material 7. Lastly, after the back surface material 6 is sound-insulated and sound-absorbed, the back surface material 6 goes to the back side.

As described above, in the soundproof panel 1 of the present embodiment, since the first and second air layers 9 and 10 perform two-step attenuation, and the intermediate surface material 4 performs sound insulation / absorption during that period, It is possible to obtain higher soundproofing performance without increasing the weight and thickness of the soundproofing panel, as compared with the conventional case having a single air layer. In this case, if a relatively lightweight wooden board is used as the intermediate surface material 4, it becomes particularly advantageous in terms of weight. Further, the intermediate surface member 4 suppresses a sound bridge caused by solid-state propagation between the first and second frameworks 3 and 5, and contributes to improvement of soundproof performance.

The soundproof panel 1 further includes the first and second
The sound absorbing performance is further enhanced by the sound absorbing action of the sound absorbing materials 7 and 7 respectively filled in the air layers 9 and 10. In addition, as described above, if the materials having different surface densities and / or the surface densities are selected as the surface material 2, the intermediate surface material 4, and the back surface material 6, the soundproof panel 1 is less likely to resonate,
It is possible to further improve the soundproof performance.

FIG. 3 shows a soundproof panel according to a second embodiment of the present invention. The soundproof panel 21 has a large number of holes 23, 23, ... As compared with the soundproof panel 1 of the first embodiment.
With a perforated plate 22 formed with a predetermined pitch and size,
The only difference is the construction of the surface material. Therefore,
Also in this soundproof panel 21, the same effect as that of the first embodiment is obtained, and the sound absorbing performance can be further enhanced by the sound absorbing action of the perforated plate 22.

In the above-mentioned embodiment, the air layer has two layers, but it may have three or more layers. By doing so, the soundproofing performance can be further enhanced. The perforated plate of the second embodiment may be provided only on the back surface material or on both the front surface material and the back surface material. In addition, the detailed configuration can be changed as appropriate without departing from the spirit of the present invention.

[0025]

As described above in detail, the soundproof panel of the present invention has an effect that the soundproof performance can be improved without increasing the weight and the thickness.

[Brief description of drawings]

FIG. 1 is a side sectional view of a soundproof panel according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing a method of manufacturing the soundproof panel of FIG.

FIG. 3 is a side sectional view of a soundproof panel according to a second embodiment of the present invention.

[Explanation of symbols]

 1 Soundproof Panel 2 Surface Material 3 First Frame 4 Intermediate Surface Material 5 Second Framework 6 Backside Material 7 Sound Absorbing Material 8 Core Material 21 Soundproof Panel 22 Perforated Plate

Claims (4)

[Claims] 1. A plurality of frameworks formed by framing a core material, an intermediate surface material interposed between the plurality of frameworks and partitioning the frameworks, and front and back surfaces of the frameworks, respectively. A soundproof panel comprising a surface material and a back surface material. 2. The soundproof panel according to claim 1, wherein the frame is filled with a sound absorbing material. 3. The soundproof panel according to claim 1, wherein at least one of the front surface material and the rear surface material is a perforated plate. 4. The front surface material, the back surface material, and at least two of the intermediate surface materials are made of materials different from each other and / or areal density.
The soundproof panel according to any one of 1 to 3.