JP3922168B2 - Wall sound absorption structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a sound absorbing structure for a wall surface, and more particularly to a sound absorbing structure for a wall surface in which a panel is attached to the wall surface at a predetermined interval so as to exhibit a sound absorbing effect by vibration of the panel itself.
[0002]
[Prior art]
Conventionally, as shown in FIG. 10, this type of wall soundproof structure has a panel 2 arranged parallel to the wall surface 1 at a predetermined interval with respect to the wall surface 1, and the panel 2 is attached to a support portion a fixed to the wall surface 1. It was fixed. When the sound hits the panel 2 having the air layer 3 behind, the panel 2 vibrates. At this time, the panel 2 hits the panel 2 in order to keep the vibration against the internal friction of the panel 2 and the loss at the support portion a. A part of the energy of the sound is consumed and exhibits a sound absorption effect (for example, see Non-Patent Document 1).
[0003]
[Non-Patent Document 1]
“Noise / Vibration Countermeasure Handbook” edited by Japan Acoustical Materials Association, published by Gakuhodo, May 20, 1982, P258-259
[0004]
[Problems to be solved by the invention]
However, in the above conventional example, since the panel 2 is rigidly supported by the support part a, the vibration of the panel 2 is regulated by the support part a by the support, and the panel itself is difficult to vibrate, and the sound absorption effect is low. There was a problem.
[0005]
The present invention has been made in view of the description, and an object of the present invention is to provide a wall-wall sound absorbing structure that can support the panel itself so as to easily vibrate and has a high sound absorbing effect.
[0006]
[Means for Solving the Problems]
In order to solve the above problems, the wall sound absorption structure of the present invention is arranged such that the panel 2 is disposed in parallel to the wall surface 1 with a predetermined distance from the wall surface 1, and the upper fixing bracket 4 is disposed on the upper end surface of the panel 2. The upper fixing bracket 4 is fixed to the wall surface 1 along with the lower fixing bracket 5 along the lower end surface of the panel 2, and the lower fixing bracket 5 is fixed to the wall surface 1. The upper fitting piece 4a of the upper fixing fitting 4 is loosely fitted in the hole 6, and the lower fitting piece 5a of the lower fixing fitting 5 is loosely fitted in the lower fitting hole 7 provided on the lower end surface of the panel 2, and the upper fitting is performed. A gap S is formed between the hole 6 and the upper fitting piece 4a and between the lower fitting hole 7 and the lower fitting piece 5a so that the panel 2 can move in the thickness direction of the panel 2 , In addition, the anti-rest fitting 8 is fixed to the wall surface 1 along the left and right side surfaces of the panel 2, and the side portions provided on the left and right side surfaces of the panel 2. The side fitting piece 8a of the steady fitting 8 is loosely fitted in the joint hole 9, so that the panel 2 can move in the thickness direction of the panel 2 between the side fitting hole 9 and the side fitting piece 8a. It is characterized in that a gap S is formed for the purpose .
[0007]
By attaching the panel 2 as described above, the panel 2 arranged at a distance from the wall surface 1 can be supported and attached by the upper fixing bracket 4 and the lower fixing bracket 5. Is supported by the upper fixing bracket 4 and the lower fixing bracket 5, the upper fitting piece 4 a and the upper fitting hole 6, and the lower fitting piece 5 a and the lower fitting hole 7 are loosely fitted through the gap S. Therefore, the panel 2 is attached so that the panel 2 can move in the thickness direction of the panel 2, and the panel 2 itself can be supported so as to easily vibrate, and the sound absorbing effect is enhanced.
[0008]
In addition, in addition to the fixing of the upper fixing bracket 4 and the lower fixing bracket 5 as described above, the panel 2 can be fixed so that the panel 2 does not move to the left and right by the steady rest fitting 8, and the panel 2 can be stably attached. Thus, even if the panel 2 is attached with the steady rest 8, the side fitting piece 8 a and the side fitting hole 9 are loosely fitted through the gap S, so that the panel 2 has the thickness of the panel 2. The panel 2 is attached so that it can move in the direction, and the panel 2 itself can be supported so as to easily vibrate, and the sound absorption effect is enhanced.
[0009]
Also, a buffer that cushions so that no sound is produced even if the upper fixing bracket 4, the lower fixing bracket 5, or the steady rest fitting 8 contacts the inner surface of the upper fitting hole 6, the lower fitting hole 7, or the side fitting hole 9. It is also preferable that the member 10 is mounted. When the panel 2 vibrates greatly, the upper fixing bracket 4, the lower fixing bracket 5, and the steady rest fitting 8 may hit the inner surfaces of the upper fitting hole 6, the lower fitting hole 7, and the side fitting hole 9. In addition, no sound is generated by being buffered by hitting the buffer member 10.
[0010]
It is also preferable that the panel 2 itself is provided with a sound absorbing material 11 so that the panel 2 itself has a sound absorbing function. In this case, the sound absorbing material 11 of the panel 2 itself absorbs sound, so that the sound is absorbed and the sound absorbing effect is further enhanced.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
In the present invention, the panel 2 is attached in parallel to the wall surface 1 with a space to be the air layer 3 with respect to the wall surface 1 to make a sound absorbing structure. As shown in FIG. 5, the decorative plate 12, the intermediate plate 13, the frame body 14, the sound absorbing material 11, and the like are formed and integrally assembled.
[0012]
The decorative board 12 is a rectangular board, and at least makeup is applied to the surface. The intermediate plate 13 is also a rectangular plate, and a back groove 16 that is long in the width direction perpendicular to the longitudinal direction of the intermediate plate 13 is formed on the back surface side of the intermediate plate 13 so as to extend in the width direction. The back grooves 16 are provided at equal intervals in the longitudinal direction at portions other than both ends in the longitudinal direction of the intermediate plate 13. The length in the longitudinal direction of the intermediate plate 13 is the same as the length in the longitudinal direction of the decorative plate 12, but the width of the intermediate plate 13 is smaller than the width of the decorative plate 12.
[0013]
The decorative plate 12 is attached to the front surface side of the intermediate plate 13, and at this time, for example, the decorative plate 12 is placed on the back surface side of the decorative plate 12 with the surface of the decorative plate 12 facing down. The intermediate plate 13 is mounted on the The intermediate plate auxiliary material 17 is the same as the length of the intermediate plate 13, and the thickness of the intermediate plate auxiliary material 17 is the same as the thickness of the intermediate plate 13. The intermediate plate auxiliary member 17 is disposed on both sides of the intermediate plate 13 and is attached to the decorative plate 12 and attached. With the intermediate plate 13 and the decorative plate 12 bonded together, the intermediate plate 13 is directed downward as shown in FIG. 6, and a pattern groove is formed from the surface of the decorative plate 12 with a tool such as a circular saw 18. 19 is drilled. The pattern groove 19 is formed in a direction intersecting the back groove 16 so as to be orthogonal to the back groove 16, and is formed along the longitudinal direction of the decorative board 12. When drilling the pattern groove 19, the pattern groove 19 is drilled to a depth reaching the back groove 16, and the pattern groove 19 and the back groove 16 are communicated.
[0014]
The frame body 14 is formed by forming a pair of horizontal frame members 14a and a pair of vertical frame members 14b in a rectangular shape, and a partition frame member 14c is provided between the vertical frame members 14b. The frame body 14 is disposed on the back side of the intermediate plate 13 and the intermediate plate auxiliary member 17 and is attached to the intermediate plate 13 and attached thereto. The sound absorbing material 11 is formed in a rectangular plate shape, and the sound absorbing material 11 is loaded into the frame body 14 and integrated. In the case of this example, the sound absorbing material 11 is formed of a soft fiber board (density less than 0.35 g / cm 3) called an insulation board. When the sound-absorbing material 11 is formed of such a soft fiberboard, there is a hygroscopic property in addition to the sound-absorbing property. As described above, the panel 2 having sound absorbing properties is formed by integrally assembling the decorative plate 12, the intermediate plate 13, the frame 14, the sound absorbing material 11, and the like as shown in FIG.
[0015]
The panel 2 is formed as described above, and the panel 2 is attached as shown in FIGS. 1 to 3 with the upper fixing bracket 4, the lower fixing bracket 5, and the steady rest fitting 8. The panel 2 is attached to the wall surface 1 at a predetermined interval, and an air layer 3 is formed between the wall surface 1 and the panel 2. The space between the air layers 3 is about 10 to 15 mm.
[0016]
The lower fixing bracket 5 is formed in a L-shaped cross section with a horizontal piece 5b and a vertical piece 5c. The vertical piece 5c has a round hole-shaped attachment hole 5d, and the top of the horizontal piece 5b has an upper portion. A lower fitting piece 5a is provided so as to stand up. The lower fixing bracket 5 is attached to the wall surface 1 by placing the vertical piece 5c along the wall surface 1 and driving a fixing tool 20 such as a screw through the mounting hole 5d. A lower fitting hole 7 longer than the length of the lower fitting piece 5a and wider than the thickness of the lower fitting piece 5a is drilled at the lower end of the panel 2, and the lower fitting hole 7 is made of an elastic material such as rubber. A buffer member 10 having a substantially U-shaped cross section formed of a material is fitted. And the lower fitting piece 5a is loosely fitted in the lower fitting hole 7, and the panel 2 can move in the thickness direction of the panel 2 in the gap S between the lower fitting hole 7 and the lower fitting piece 5a. It is like that.
[0017]
The upper fixing bracket 4 is formed of a horizontal piece 4b and a vertical piece 4c having an L-shaped cross section, and the vertical piece 4c has a mounting hole 4d formed of a long hole in the vertical direction, and the tip of the horizontal piece 4b. The upper fitting piece 4a is provided so as to project downward. The upper fixing bracket 4 is attached to the wall surface 1 by placing the horizontal piece 4b upward, the vertical piece 4c along the wall surface 1, and driving a fixing tool 20 such as a screw through the attachment hole 4d. An upper fitting hole 6 that is longer than the upper fitting piece 4a and wider than the thickness of the upper fitting piece 4a is perforated at the upper end of the panel 2, and an elastic material such as rubber is provided in the upper fitting hole 6. The shock-absorbing member 10 having a U-shaped cross section is formed. The upper fitting piece 4a is loosely fitted in the upper fitting hole 6, and the panel 2 can move in the thickness direction of the panel 2 in the gap S between the upper fitting hole 6 and the upper fitting piece 4a. It has become. When loosely fitting the upper fitting piece 4a into the upper fitting hole 6, the long attachment hole 4d is slid with respect to the fixing tool 20 from the state shown in FIG. The fitting piece 4 a is put into the upper fitting hole 6.
[0018]
The steady rest 8 is formed of a side piece 8b and a bottom piece 8c having an L-shaped cross section. The bottom piece 8c has a mounting hole 8d formed of a long elongated hole on the left and right, and the tip of the side piece 8b. A side fitting piece 8a is projected. In this steady rest 8, the bottom piece 8 c is placed along the wall surface 1 so that the side piece 8 b is located on the left and right sides, and a fixing tool 20 such as a screw is driven through the mounting hole 8 d, so that the wall surface 1. It is attached to the left and right of Side fitting holes 9 longer than the length of the side fitting piece 8a and wider than the thickness of the side fitting piece 8a are perforated on the left and right side surfaces of the panel 2. 9 is fitted with a square cylindrical buffer member 10 formed of an elastic material such as rubber. And the side part fitting piece 8a is loosely fitted in the side part fitting hole 9, and the panel 2 is the thickness of the panel 2 in the clearance gap S between the side part fitting hole 9 and the side part fitting piece 8a. It can move in the direction. When the side fitting piece 8a is loosely fitted into the side fitting hole 9, the side fitting piece 8a is slid into the side fitting hole by sliding the elongated mounting hole 8d in the same manner as the upper fitting piece 4a. Put in 9.
[0019]
As described above, the panel 2 is attached to the wall surface 1 via the air layer 3, and the sound in the room is absorbed by the vibration of the panel 2. At this time, even if the panel 2 is stably attached by the upper fixing bracket 4, the lower fixing bracket 5, and the left and right steadying brackets 8, the gap S between the upper fitting piece 4 a and the upper fitting hole 6, The panel 2 moves in the thickness direction of the panel 2 through the gap S between the lower fitting piece 5a and the lower fitting hole 7 and the gap S between the side fitting piece 8a and the side fitting hole 9. Therefore, the panel 2 is easy to vibrate, and the panel 2 vibrates smoothly, so that the sound can be effectively absorbed and absorbed. Further, when the panel 2 vibrates, the upper fitting hole 4, the lower fitting hole 7, the side fitting hole 9, the upper fitting piece 4 a of the upper fixing fitting 4, the lower fitting piece 5 a of the lower fixing fitting 5, Even if the side fitting piece 8a of the steady rest 8 is hit, it can be buffered by the buffer member 10 and no sound is generated.
[0020]
Further, the surface of the panel 2 is formed of a decorative plate 12, and a pattern groove 19 is formed in the decorative plate 12, so that the appearance can be improved even if the panel 2 is attached along the wall surface 1 in the room. The panel 2 has the sound absorbing material 11 loaded therein, and the panel 2 itself has a sound absorbing function. Therefore, the sound is absorbed by the sound absorbing material 11 from the pattern groove 19 through the back groove 16, Since the sound absorbing material 11 of the panel 2 can also absorb sound, the sound absorbing effect can be further improved.
[0021]
In the above example, the sound absorbing material 11 is loaded inside and the panel 2 itself has a sound absorbing performance. However, the panel 2 itself may be a simple board having no sound absorbing function, or a simple insulation board. A sound-absorbing plate may be used.
[0022]
Further, the panel 2 in which the sound absorbing material 11 is loaded inside as described above, the decorative plate 12 is pasted on the surface, and the pattern groove 19 is formed on the decorative plate 12 has its own sound absorbing property. there is a case to be Do construction also made it'll be the sound absorption in the only sound absorbing panel 2 itself to the construction side-by-side. In this case, as shown in FIG. 8, a female fruit 22 is provided on one side of the panel 2 and a male fruit 23 capable of fitting the female fruit 22 on the other side of the panel 2 is provided. The panels 2 adjacent to each other are connected to each other by fitting the female seeds 22 and the male seeds 23 together.
[0023]
As described above, the panel 2 having the female seeds 22 and the male seeds 23 is used as a single unit, and the panel 2 is separated from the wall surface 1 as described above. In the case of attaching at 8, a frame 24 having a substantially L-shaped cross section is attached along the periphery of the panel 2 as shown in FIG. 9. Pressing edge of the case frame 24 25 hired real 26 and mounted on the female real 22 and male fruit 23, to cover the cutout portion 27 of the upper and lower ends. When the panel 2 is used to be separated from the wall surface 1 and attached by the upper fixing bracket 4, the lower fixing bracket 5, or the steady rest 8, the upper fitting hole 6 is attached to the frame 24 attached as described above. The lower fitting hole 7 and the side fitting hole 9 are provided.
[0024]
【The invention's effect】
According to the first aspect of the present invention, the panel is disposed in parallel with the wall surface at a predetermined interval with respect to the wall surface, and the upper fixing bracket is fixed to the wall surface along the upper end surface of the panel. At the same time, the lower fixing bracket is fixed to the wall surface along the lower end surface of the panel, so the panel arranged at a distance from the wall surface is supported by the upper fixing bracket and the lower fixing bracket. of course it can have the fit under the lower fixing bracket under fitted Goana provided at the lower surface of the panel as well as loosely fitted fitting piece on the upper mounting brackets to fit well on provided on the upper end face of the panel A gap is provided between the upper fitting hole and the upper fitting piece and between the lower fitting hole and the lower fitting piece so that the panel can move in the thickness direction of the panel. Because it is formed, even if the top and bottom of the panel are supported by the upper and lower mounting brackets, the panel moves in the thickness direction of the panel. Panel is attached to so that, in which the sound absorbing effect is increased the panel itself is able to support for easy vibrations.
[0025]
In addition, the invention of claim 1 of the present invention, the bracing bracing brackets by each along the brackets on the left and right sides of the panel is fixed to the wall, on the side fitting hole provided in the left and right sides of the panel Since the side fitting piece of the steady rest fitting is loosely fitted, and a gap is formed between the side fitting hole and the side fitting piece so that the panel can move in the thickness direction of the panel. In addition to fixing the upper fixing bracket and the lower fixing bracket, the panel can be fixed so that it does not move from side to side with the steady rest bracket, and the panel can be attached stably. Even if the panel is attached, the side fitting piece and the side fitting hole are loosely fitted through a gap, so the panel is attached so that the panel can move in the thickness direction of the panel, and the panel itself vibrates. It can be supported so that the sound absorption effect is enhanced.
[0026]
Further, the invention according to claim 2 of the present invention is that in claim 1 , even if the upper fixing bracket, the lower fixing bracket or the steady rest fitting contacts the inner surface of the upper fitting hole, the lower fitting hole or the side fitting hole. Since a shock-absorbing member that cushions so as not to generate sound is attached, the panel vibrates greatly, and the upper fixing bracket, lower fixing bracket, or steady rest bracket on the inner surface of the upper fitting hole, lower fitting hole, or side fitting hole Even if such a thing occurs, it is buffered by hitting the buffer member and does not generate sound.
[0027]
In the invention of claim 3 of the present invention, since the sound absorbing material is provided on the panel itself and the panel itself has a sound absorbing function in claim 1 or claim 2 , the sound absorbing material of the panel itself can also absorb sound. Sound is absorbed and the sound absorption effect is further enhanced.
[Brief description of the drawings]
FIG. 1 is a partially cutaway side view showing an example of an embodiment of the present invention.
FIG. 2 is a partially cutaway plan view of the above.
FIG. 3 is an exploded perspective view of the above.
FIGS. 4A and 4B are cross-sectional views illustrating a state in which the upper fitting piece of the upper fixing bracket is inserted into the upper fitting hole.
FIG. 5 is an exploded perspective view of the above panel.
FIG. 6 is a perspective view showing a state in which a pattern groove of the panel is processed.
7A and 7B show the same panel, where FIG. 7A is a partially cutaway front view, and FIG. 7B is a cross-sectional view viewed from the bottom.
FIGS. 8A and 8B show a state in which a female fruit and a male fruit are provided on the panel. FIG. 8A is a partially cutaway front view, and FIG. 8B is a cross-sectional view viewed from the bottom.
9A is a cross-sectional view seen from a plane with a frame attached to the panel, and FIG. 9B is a cross-sectional view seen from a side. FIG. 10 is a schematic cross-sectional view showing a conventional example. .
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Wall surface 2 Panel 4 Upper fixing metal fitting 4a Upper fitting piece 5 Lower fixing metal fitting 5a Lower fitting piece 6 Upper fitting hole 7 Lower fitting hole 8 Stabilizing metal fitting 8a Side fitting piece 9 Side fitting hole 10 Buffer Member S Clearance

Claims (3)

A panel is arranged in parallel to the wall surface at a predetermined interval with respect to the wall surface, and the upper fixing bracket is fixed to the wall surface along the upper end surface of the panel and the lower fixing bracket is attached to the lower end surface of the panel. The lower fixing bracket is fixed to the wall, and the upper fitting piece of the upper fixing bracket is loosely fitted in the upper fitting hole provided on the upper end surface of the panel, and the lower fixing hole is provided below the lower fitting hole provided on the lower end surface of the panel. The lower fitting piece of the fixing bracket is loosely fitted so that the panel can move in the thickness direction of the panel between the upper fitting hole and the upper fitting piece and between the lower fitting hole and the lower fitting piece. The anti-rest brackets are fixed to the wall surfaces along the left and right side surfaces of the panel, and the anti-rest brackets are inserted into the side fitting holes provided on the left and right side surfaces of the panel. The side fitting piece is loosely fitted so that the panel can move in the panel thickness direction between the side fitting hole and the side fitting piece. Sound absorbing structure of the wall, characterized in that formed between. A shock-absorbing member is installed to cushion the inner surface of the upper, lower, and side fitting holes so that no sound is produced even when the upper, lower, or steady rests come into contact with the inner surface. The sound absorbing structure for a wall surface according to claim 1. The sound absorbing structure for a wall according to claim 1 or 2, wherein the panel itself is provided with a sound absorbing material so as to have a sound absorbing function .

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