JP2574448Y2 - Acoustic adjustment panel - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound-adjusting panel as a sound-absorbing interior material to be attached to a wall or a ceiling of a gymnasium or a music room.

[0002]

2. Description of the Related Art Walls and ceilings in gymnasiums, music rooms, etc., where acoustic design is important, have perforated boards with sound absorption and reflectivity according to the purpose of use in the room, and sound absorbing materials on these boards. The sound-absorbing interior material of the acoustic adjustment panel provided with is applied.

FIG. 6 shows the board (11) constituting a wall surface.
And the torso (8) of the wall base material to which it is attached is shown.
The board (11) is a rectangular plywood board or a non-combustible board commonly referred to as a soundproof board or the like, and a large number of acoustic adjustment sound absorption holes (12) having the same hole diameter are formed in a portion except a peripheral portion by drilling. The waist edge (8) is assembled in a lattice shape, and each of the rectangular spaces (9) surrounded by the waist edge (8) is filled with a soundproof material (13) such as glass wool or rock wool. FIG. 6 (c)
After the space (9) is filled with the soundproofing material (13), the periphery of the back surface of the board (11) is fixed to the front surface of the body edge (8) with nails or screws (not shown). If the torso (8) is made of wood, nails are used to fix the board (11) if it is made of metal (aluminum).

FIG. 7 shows an acoustic adjustment panel (15) in which a soundproof material (13) is fixed to a back surface of the board (11) by a back plate (16) and a frame plate (17). This acoustic adjustment panel (15)
Is a so-called sound-absorbing reflection panel or soundproofing panel. A frame plate (17) is fixed to the peripheral edge of the back surface of the board (11), and the peripheral edge of the rear plate (16) is attached to the frame plate (17). Fixed,
The soundproofing material (13) is packed between the board (11) and the back plate (16). The peripheral edge of the rear surface of the acoustic adjustment panel (15) is fixed to the front surface of the body edge (8) with nails or screws.

[0005]

[Problem to be Solved by the Invention] The installation of the soundproof interior material using the board shown in FIG. 6 requires a lot of man-hours and poor workability because the sound absorbing material is embedded between the body edges and then the board is fixed. There was a problem that maintenance and management of a separate board was troublesome. Also, after embedding the soundproofing material between the rims, when installing the soundproofing interior material at the work site where the board is installed, the sound absorption coefficient after construction will vary due to the thickness variation of the soundproofing material, etc. There was a problem that it was difficult to adjust the sound in the room.

[0006]

In the case of the acoustic adjustment panel shown in FIG. 7, since the acoustic adjustment panel is manufactured in a factory, the acoustic characteristics such as the sound absorption coefficient are stabilized, and the acoustic adjustment in the room is facilitated. However, the board and the frame plate, the back plate, the sound absorbing material and the number of constituent members are large, and the weight and cost are high.In addition, the work is so thick that the work of fixing it to the body edge with nails or screws is difficult. There was a problem with poor workability.

An object of the present invention is to provide an acoustic adjustment panel which can be easily reduced in weight and has excellent workability on walls and ceilings.

[0009]

SUMMARY OF THE INVENTION The present invention provides a board having a plurality of sound-adjusting sound absorbing holes formed in a predetermined perforated area except for a peripheral portion. In the acoustic adjustment panel to which the sound absorbing material surrounded by the surrounding material is fixed, the surrounding material is made of styrofoam, and the outer periphery of this is integrated with the extension protection part that can be cut and separated along the outer circumference with a cutting tool. The above object is achieved by the structure having the above. The present invention also provides a first perforated area having a plurality of sound-adjusting sound-absorbing holes having the same hole diameter, and a plurality of sound-adjusting sound-absorbing holes having a hole diameter different from that of the first perforated area. A sound absorbing material having a back surface and an end surface surrounded by an outer surrounding material on the back surface of each of the perforated area regions of the board, the surface of which is divided into a plurality of perforated area regions including the second perforated area region formed with Also in the acoustic adjustment panel to which is fixed, each of the surrounding materials is made of styrofoam, and each of the surrounding materials integrally has an extended protection portion connected to the outer periphery so as to be cut and separable along the outer periphery with a cutting tool. The structure achieves the above object.

[0010]

[0011]

[0012]

The sound absorbing property of each perforated area of the board is stabilized by fixing the sound absorbing material and the surrounding material of the styrofoam on the back surface of the perforated area of the board. Further, since the outer material of the styrofoam for fixing the sound absorbing material to the board is lightweight, the weight of the acoustic adjustment panel can be reduced, and the workability on the ceiling and the like is improved. The extended protection portion formed so as to be cut and separable on the outer periphery of the outer member of the styrofoam prevents the outer member from being damaged at the time of packing, and facilitates the packing and transportation of the acoustic adjustment panel.

[0013]

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment will be described with reference to FIGS. The acoustic adjustment panel (1) shown in the figure is configured by directly attaching a sound absorbing material (5) and an outer surrounding material (6) surrounding the rear surface of a rectangular board (2). The board (2) is a plywood board or a non-combustible board, and the sound absorbing material (5) is a rectangular plate-shaped glass wool such as rock wool. The surrounding material (6) is a rectangular plate-like box surrounding the sound absorbing material (5), and is made of foamed polystyrene. The extended protective portion (6) of the same styrofoam is provided on the outer periphery of the outer material (6) of the styrofoam.
a) is extended integrally and formed so as to be cut and separable by a blade. The surrounding material (6) and the extension protection portion (6a) of the styrofoam can be lightweight and inexpensive, and have excellent sound insulation properties, and the surrounding material (6) has the sound absorbing property of the sound absorbing material (5). Be stable. Further, the outer material (6) and the extended protection portion (6a) of the expanded polystyrene have excellent moldability and can be easily mass-produced even if they have a complicated structure. The extension protection portion (6a) of the outer enclosure (6) protects the peripheral edge of the outer enclosure (6) from external force and the like as described later, and the outer enclosure (6) as necessary.
Cut off from

The rectangular board (2) is divided into a plurality of perforated area areas (M), and a plurality of sound absorbing holes (3) are formed through each perforated area area (M). One board (2)
The hole diameter of the sound absorbing hole (3) is divided into a plurality of stages so as to effectively absorb at least two bands of low, medium, and high sounds. For example, as shown in FIG. 1A, a central portion (2) crossing the peripheral portion (2a) of the board (2) in a cross shape.
Except for b), the board (2) is divided into four first to fourth perforated area areas (M1) to (M4), and the first and third perforated areas on the board diagonal line. In the area areas (M1) and (M3), a large number of sound-absorbing holes (3 ') having the same hole diameter are formed in a grid pattern by drilling, and the other second and fourth perforated area areas (M2) are formed.
In (M4), a large number of sound-absorbing holes (3 '') having the same hole diameter are formed in a grid pattern by drilling. Here, the diameters of the sound absorbing holes (3 ') of the first and third perforated area regions (M1) and (M3) are the same as those of the second and fourth perforated area regions (M2) and (M4). 3 '') is set larger than the hole diameter.

The board (2) has a low sound, a medium sound, and a high sound, depending on the sound absorbing holes (3) having different hole diameters and the arrangement thereof.
It has effective sound absorption characteristics in at least two bands and exhibits various sound adjustment functions.

The sound absorbing material (5) and the surrounding material (6) are fixed only to the respective back surfaces of the perforated area regions (M) of the board (2). As shown in FIG. 2, the sound absorbing material (5) is attached to the back surface of the perforated area (M) via a sheet having excellent sound permeability, for example, a cold gauze (4). The cold gauze (4) is used for the purpose of hiding the sound absorbing material (5) from the outside of the sound absorbing hole (3) and improving the appearance of the board (2), and is not always necessary.

As shown in FIG. 3, the outer material (6) of the expanded polystyrene finally becomes four independent rectangular boxes each having the same size as each perforated area (M). The sound absorbing material (5) is stored and protected inside. These four surrounding materials (6)
Is fixed to the back surface of the board (2) with an adhesive. As shown in FIG. 2 (a), the initial shapes of the four outer enclosures (6) are integrally connected by extension protection portions (6a) integrally extended around the respective outer peripheries. One rectangular enclosure (6)
A rectangular frame-shaped extending protection portion (6a) is integrally formed over the entire circumference of the device. The extension protection portion (6a) is separated from the board (2) and is formed as a thin wall as shown in FIG. 2 (c), which is partially formed along the boundary with the surrounding material (6). Connection part (6b)
Just connected to the surrounding material (6). Thin connecting part (6b)
Is cut by a cutting tool (not shown), so that the extension protection portion (6a) is easily cut and separated from the surrounding material (6).

The surrounding material (6) of the styrofoam cuts off the sound from the sound absorbing material (5), so that the sound absorbing coefficient of the board (2) and the sound absorbing material (5), and furthermore, the entire sound adjusting panel (1) To stabilize the acoustic characteristics. Extension protection part (6a) of outer enclosure (6)
Is located on the back surface of the peripheral portion (2a) of the board (2), and protects the surrounding material (6) from external force from a rope or the like applied when packing or transporting the acoustic adjustment panel (1). With this protection function, packing and transportation of the acoustic adjustment panel (1) and construction work on walls and the like become easy.

FIG. 4 shows an example in which the acoustic adjustment panel (1) is installed on, for example, the rim (8) of a wall base material. At the site where the acoustic adjustment panel (1) is installed, as shown in FIG. 3, the extension protection portion (6a) of the outer envelope (6) on the back surface is cut and removed. This cutting is easily and quickly performed because the connecting portion (6b) of the extension protection portion (6a) is a thin styrofoam. By removing the extension protection part (6a), the peripheral part (2a) and the cross-shaped central part (2b) of the back surface of the board (2) are exposed,
The peripheral portion (2a) and the central portion (2b) of the back surface are fixed to the corresponding body edge (8) with nails or screws.

That is, as shown in FIGS. 4 (a) and 4 (b), the acoustic adjustment panel (1) in which the four surrounding members (6) are fixed to the back surface of the board (2) has a body edge (8). ), Enclosing the surrounding material (6) into each of the rectangular spaces (9), and fixing the peripheral part (2a) and the central part (2b) of the back surface of the board (2) to the body rim (8) It is constructed in. Since the sound absorbing material (5) of the acoustic adjustment panel (1) and the surrounding material (6) of the styrofoam are lightweight, the acoustic adjustment panel (1) is reduced in weight to about the weight of the board (2), Construction becomes easy.
In addition, since only the thin board (2) is directly nailed or screwed to the torso (8), it can be easily and quickly executed, and short and inexpensive nails and screws are used for fixing. it can.

As shown in FIG. 4 (a), the sound absorbing hole (3) of the acoustic adjustment panel (1) is formed by dividing the hole having the same diameter into a perforated area (M) having a smaller area. Therefore, the flicker phenomenon peculiar to the perforated plate is reduced.

The acoustic adjustment panel (1) of another embodiment shown in FIGS. 5 (a) and 5 (b) is provided with a perforated area (M) in four columns in a substantially square board (2). The sound absorbing material (5) and the surrounding material (6) are fixed to the back surface of each. A large-diameter sound-absorbing hole (3 ') is formed in the left two rows of FIG. 5A of the four rows of perforated area regions (M), and a small-diameter sound-absorbing hole (3'') is formed in the right two rows. You. The acoustic adjustment panel (1) is constructed by fixing the back surfaces of the four peripheral edges (2a) of the board (2) to a frame-like base material of a wall or a ceiling.

The present invention is not limited to the above embodiment, but may be appropriately modified according to the use of the acoustic adjustment panel. For example, only one perforated area is provided on one board, and a sound absorbing material is provided on the back surface. Even if the sound absorbing material and the surrounding material are fixed over the entire surface except for the peripheral portion of the back surface of the board, even if one board is divided into a plurality of perforated area areas, Good.

[0025]

According to the present invention, the surrounding material attached to the back surface of the perforated area of the board via the sound absorbing material is made of styrene foam, so that the acoustic adjustment is made up of the perforated boat, the sound absorbing material and the surrounding material. It is easy to reduce the weight and cost of the panel, and the weight reduction makes the acoustic adjustment panel more workable on walls and ceilings. In addition, since the extended protection portion of the expanded polystyrene that is easy to cut with a blade is integrally formed on the outer periphery of the outer material of the foamed polystyrene, the outer packaging material of the expanded polystyrene that is easily damaged during packing is protected by the extended protection portion, It is possible to prevent a decrease in the commercial value of the acoustic adjustment panel, and to simplify packing and transportation. In addition, the extended protection portion may be cut off and separated from the surrounding material with a knife or the like, and the thin board may be fixed directly to a wall or the like with nails or screws, so that short and inexpensive nails or screws can be used.

[0026]

[0027]

[0028]

[0029]

[Brief description of the drawings]

FIG. 1 (a) is a front view showing an embodiment of the present invention,
FIG. 2B is a bottom view including a partial cross section of the acoustic adjustment panel in FIG.

2A is a rear view of the acoustic adjustment panel of FIG. 1 including a partly omitted portion, FIG. 2B is an enlarged sectional view taken along line AA of FIG. 2A, and FIG. 2C is FIG. FIG. 3A is an enlarged cross-sectional view along the line BB.

3A is a rear view immediately before construction including a part of the acoustic adjustment panel of FIG. 1 which is partially omitted, and FIG. 3B is a bottom view including a partial cross section of the acoustic adjustment panel of FIG. 3A.

4 (a) is a front view of the acoustic adjustment panel of FIG. 1 at the time of construction, and FIG. 4 (b) is an enlarged cross-sectional view taken along line CC of FIG. 4 (a).

FIG. 5 (a) is a front view showing another embodiment of the present invention,
FIG. 5B is a rear view including a partly omitted portion of the acoustic adjustment panel in FIG.

6 (a) is a front view of a conventional acoustic adjustment panel at the time of construction, FIG. 6 (b) is a side view including a partial cross section of the acoustic adjustment panel of FIG. 6 (a), and FIG. 6 (c) is FIG. The side view before construction of the acoustic adjustment panel of FIG.

FIG. 7 is a side view including a partial cross section before and after construction of another conventional acoustic adjustment panel.

[Explanation of symbols]

 1 Sound adjustment panel 2 Board 3 Sound absorption hole 3 'Large diameter sound absorption hole 3' 'Small diameter sound absorption hole M Perforated area area M1 First perforated area area M2 Second perforated area area 5 Sound absorbing material 6 Surrounding Material 6a Extension protection part

Claims (2)

(57) [Scope of request for utility model registration] 1. A board in which a plurality of sound-adjusting sound-absorbing holes are formed in a predetermined perforated area except for a peripheral portion, on a back surface of the perforated area of the board, a back surface and an end surface are surrounded by an outer surrounding material. In the acoustic adjustment panel to which the material is fixed, the surrounding material is made of foamed styrene, and an outer peripheral portion of the outer peripheral member is integrally provided with an extending protection portion that is connected along the outer periphery so as to be cut and separated by a cutting tool. Sound adjustment panel. 2. A first perforated area in which a plurality of sound-adjusting sound-absorbing holes having the same hole diameter are formed, and a plurality of sound-adjusting sound-absorbing holes having a hole diameter different from the sound-absorbing holes in the first perforated area. On the back surface of each perforated area region of the board whose surface is divided into a plurality of perforated area regions including the formed second perforated area region, a sound absorbing material whose back surface and an end surface are surrounded by an outer surrounding material In the fixed sound adjustment panel, each of the surrounding materials is made of foamed styrene, and each of the surrounding materials integrally has an extended protection portion connected to the outer periphery so as to be cutable and separable along the outer periphery with a cutting tool. An acoustic adjustment panel characterized by the following.