JPH076366U - Makeup sound absorbing board - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a sound-acoustic absorption board for cosmetics, in which the sound-absorbing effect of the sound-absorbing member is sufficiently exerted and the degree of freedom in design selection is high. [Structure] In a decorative acoustic sound-absorbing plate in which an interior finishing material is adhered to the surface of a base material having sound absorbing performance, the interior finishing material is a wallpaper with a backing paper, and the wallpaper has a large number of ventilation holes. It is characterized by being.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a makeup sound absorbing plate used for walls and ceilings of buildings, and more particularly to a makeup sound absorbing plate having an interior finishing material adhered to the surface of a base material having sound absorbing performance.

[0002]

[Prior art]

 In order to have clear conversations and enjoy music in the room, it is necessary to have a proper sound absorbing effect on the walls and ceiling. Therefore, in order to provide an appropriate sound absorbing effect to the walls and ceiling, conventionally, a decorative acoustic sound absorbing plate in which an interior finishing material is attached to the surface of the sound absorbing member has been used for the walls and ceiling.

[0003] This sound-acoustic sound absorption board is produced by coating a sound absorbing member such as a perforated plate, ribs or rock wool, or by winding a breathable fabric (jersey net, glass cloth) around the sound absorbing member. It is configured. There is also provided a makeup sound absorbing plate having a structure in which a makeup cloth without a backing paper is bonded to a sound absorbing member.

[0004]

[Problems to be solved by the device]

 By the way, wallpaper is generally used as an interior finishing material for walls and ceilings that is not intended to absorb sound. The reason for this is that many types of wallpaper are currently being provided as wallpaper, and you can select a wallpaper that suits your taste from among the various types of wallpaper, and make the wall or ceiling your favorite design. Because you can

However, it is necessary to install the aforesaid makeup sound absorbing plate on the wall or ceiling of a place where an annoying reverberant state is disliked, such as an audio room, a piano room, or a living room. Was occurring.

[0006] If the interior design of a room that requires a moderate sound absorption effect is to be unified, the surface of the room that does not aim to absorb sound (walls, a part of the ceiling) must be coated or breathable with a woven fabric. You need to use makeup cloth. In this case, the degree of freedom in design choice is significantly limited. On the other hand, if wallpaper is used for the surface of the room (walls, part of the ceiling) for sound absorption, the sound absorption effect of the sound absorbing member will be impaired because the wallpaper has no air permeability. On the other hand, if wallpaper is used on the surface of a room for sound absorption, it is impossible to unify the design in the same room.

The present invention has been made in order to solve the above problems, and an object thereof is to provide a cosmetic acoustic sound absorbing plate in which the sound absorbing effect of the sound absorbing member is sufficiently exerted and the design flexibility is high. I am trying.

[0008]

[Means for Solving the Problems]

 The decorative acoustic sound absorbing board of the present invention is a decorative acoustic sound absorbing board in which an interior finishing material is adhered to the surface of a base material having sound absorbing performance, and the interior finishing material is a wallpaper with a backing paper. A large number of ventilation holes are provided.

[0009]

[Action]

 According to the above-mentioned means, since the wallpaper is provided with a large number of ventilation holes, the ventilation property of the wallpaper is ensured, and the sound wave passes through the wallpaper and reaches the sound absorbing member, where a part of the energy of the sound wave is transmitted. Turns into heat energy, and the energy of sound waves is apparently lost. In other words, sound is effectively absorbed by the sound absorbing member, and the state of hyperreverberation can be improved. In addition, since wallpaper with a wide variety of designs is used as an interior finishing material, you can select a wallpaper that suits your taste from various wallpapers, and it is possible to unify the design with walls, ceilings, etc. that do not aim for sound absorption. Easy to take. Furthermore, the sound absorbing performance can be appropriately controlled by the number of ventilation holes formed in the wallpaper.

[0010]

【Example】

 Hereinafter, an embodiment of the cosmetic sound absorbing plate according to the present invention will be described.

FIG. 1 shows a makeup acoustic sound absorbing plate of an embodiment, and FIG. 2 shows an enlarged view of a cross section thereof. In these drawings, reference numeral 1 denotes a makeup sound absorbing plate, which is an interior finishing material that covers a plate-shaped base material 2 and the surface and side surfaces of the base material 2 so as to embrace them. The wallpaper 4 has a structure in which a large number of ventilation holes 3 are formed.

Here, the base material 2 is not particularly limited, but is made of a porous material such as rock wool board, glass wool board, foam material, or a perforated plate or rib. The wallpaper 4 is not particularly limited, but a woven cloth or vinyl cloth, which is rich in design, is used. The diameter of the ventilation holes 3 of the wallpaper 4 is, for example, about 0.1 to 10 mm, and the density is, for example, about ² to 300 pieces / cm ² .

In the makeup acoustic sound-absorbing plate 1 configured as above, since the wallpaper 4 is provided with a large number of ventilation holes 3, the air permeability of the wallpaper 4 is ensured, and the sound wave is transmitted through the wallpaper 4. It passes through and reaches the sound absorbing member, where a part of the energy of the sound wave is changed into heat energy, and the sound wave energy is visually lost. That is, the sound absorbing member effectively absorbs sound.

Therefore, the state of hyperreverberation can be improved. In addition, since the wallpaper4, which has a wide variety of designs, is used as an interior finishing material, you can select the wallpaper that suits your taste from various wallpapers, and you can design it on walls, ceilings, etc. that do not aim for sound absorption. It becomes easier to unify. Further, the sound absorbing performance can be controlled appropriately by the number of the ventilation holes 3 formed in the wallpaper 4.

Next, an experimental example will be described.

As a sample, a decorative acoustic sound-absorbing plate (hereinafter referred to as “Sample 1”) in which a rock wool board and a wallpaper with a backing paper having air holes are adhered, and a rock wool board with a wallpaper with a backing paper without a needle hole are bonded. The sample (hereinafter referred to as sample 2) and the rock wool board (hereinafter referred to as sample 3) were used. In this case, the area of the rock wool board was 600 mm × 2 400 mm, the hole diameter of the ventilation holes of Sample 1 was 0.3 mm, and the density was 30 pieces / cm ² .

Then, with respect to Samples 1 to 3, the average sound absorption coefficient when the octave band center frequency was changed was examined. The result is shown in FIG. Comparing sample 1 and sample 3, it can be seen that almost the same average sound absorption coefficient is obtained regardless of the change in the octave band center frequency. In other words, it is understood that the one of the example (Sample 1) has almost the same sound absorption coefficient as that of the pure rock wool (Sample 3). On the other hand, when comparing the sample 2 and the sample 3, it can be seen that the sample 2 has a considerably lower sound absorption coefficient.

Although the embodiment made by the present inventor has been described above, the present invention is not limited to the embodiment, and various modifications can be made without departing from the gist of the invention.

For example, in the cosmetic sound absorbing plate 1 of the above-described embodiment, the entire base material 2 is made of a sound absorbing member, but a part of the front surface side of the base material 2 may be a sound absorbing member. Further, the sound absorbing member may be formed of a single member or may be formed by stacking different members.

[0020]

[Effect of device]

 The decorative acoustic sound absorbing board of the present invention is a decorative acoustic sound absorbing board in which an interior finishing material is adhered to the surface of a base material having sound absorbing performance, and the interior finishing material is a wallpaper with a backing paper. Since a large number of ventilation holes are provided, sound is effectively absorbed by the sound absorbing member, and the state of excessive reverberation can be improved. In addition, since wallpaper with a wide variety of designs is used as an interior finishing material, you can choose a wall paper from your various wallpapers to suit your taste, and design it on walls or ceilings that do not aim for sound absorption. Unification becomes easy. Furthermore, the sound absorption performance can be controlled appropriately by the number of ventilation holes formed in the wallpaper.

[Brief description of drawings]

FIG. 1 is a perspective view of a makeup sound absorbing plate according to an embodiment.

FIG. 2 is an enlarged view of a cross section of the makeup sound absorbing plate of FIG.

FIG. 3 is a graph showing experimental results.

[Explanation of symbols]

 1 Sound absorption board for makeup 2 Base material 3 Vent hole 4 Wallpaper

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Internal reference number FI technical display location E04B 1/86 Q

Claims (1)

[Scope of utility model registration request] 1. A decorative acoustic sound-absorbing plate in which an interior finishing material is adhered to the surface of a base material having sound absorbing performance, wherein the interior finishing material is a wallpaper with a backing paper, and the wallpaper has a large number of ventilation holes. A cosmetic sound absorbing board characterized by being provided with.