sound-absorbing panels

Abstract

To provide a sound-absorbing panel having high designability and high sound-absorbing performance. [Solution] The sound-absorbing panel includes a back panel, a sound-absorbing mat inserted inside the back panel, a diffusion panel inserted inside the back panel and overlaying the sound-absorbing mat, and a lattice formed on the diffusion panel. Preferably, the edges of the lattice are angled so that they are not flat, thereby diffusing sound over a wide area and suppressing noise reverberation. Furthermore, by using a wooden diffusion panel with a wooden lattice, the wooden appearance can be harmonized with the desired design.

Description

[Technical Field]

[0001] The present invention relates to sound-absorbing panels. [Background technology]

[0002] For example, Patent Document 1 discloses a sound-absorbing panel in which a non-breathable sheet material is placed on at least one side of a plate-like lattice structure that is open on both sides, and the non-breathable sheet material is fixed to at least the outer periphery of the lattice structure, and at least a portion of the non-breathable sheet material that includes a square with sides of 10 cm is not fixed to the lattice structure in the inner part of the periphery of the lattice structure. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2010-277017 Summary of the Invention [Problem to be solved by the invention]

[0004] The object of this invention is to provide a sound-absorbing panel that has high designability and sound-absorbing performance. [Means for solving the problem]

[0005] The sound-absorbing panel of the present invention comprises a back panel, a sound-absorbing mat inserted inside the back panel, a diffusion panel inserted inside the back panel overlying the sound-absorbing mat, and a lattice formed on the diffusion panel. [Effects of the Invention]

[0006] According to the present invention, it is possible to provide a sound-absorbing panel that has high designability and sound-absorbing performance. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a diagram illustrating an example of the overall configuration of a sound-absorbing panel 1. FIG. [Figure 2] FIG. 2 is a diagram illustrating a diffusion panel configuration grid 40. [Figure 3] 1A to 1C are diagrams illustrating an example of a method for assembling the sound-absorbing panel 1. [Figure 4] 1 is a diagram showing an example of installation of a sound-absorbing panel 1. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0008] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a diagram illustrating the overall configuration of a sound-absorbing panel 1. As shown in FIG. As shown in FIG. 1, the sound-absorbing panel 1 has a structure in which a sound-absorbing mat 20 is placed inside a rear panel 10, and a diffusion panel 30 is placed inside the rear panel 10 so as to overlap the sound-absorbing mat 20. The sound-absorbing panel 1 is characterized by a wooden frame, a lattice, and a mat-like molded body made of glass fiber or biosoluble fiber. By placing a sound-transmitting cloth over the entire surface of the sound-absorbing molding, it is possible to prevent the fibers of the sound-absorbing molding from scattering. 1. By placing the panels on the walls, ceiling or floor of a room, sound absorption is possible while maintaining the wooden appearance. However, by separating the rear panel 10 and the front diffusion panel 30, sound absorption performance can be achieved in any location at any time after construction, regardless of whether the room is under construction or not. 2. Perforated panels have been known as sound-absorbing panels1 with a wooden appearance, but the surface area of the openings, which largely determines their sound-absorbing performance, only accounts for a few percent to 20 percent of the panel. 3. Conventional perforated panels have holes in the surface, which means that incident sound is reflected from the surface. However, the sound-absorbing panel 1 of the present invention has a lattice (diffusion panel constituent lattice 40 in Figures 1 and 2) and by making the tips of the lattice (diffusion panel constituent lattice 40 in Figures 1 and 2) angled so that they are not flat, sound can be diffused over a wide area, thereby suppressing noise reverberation. 4. By using wooden panels with a lattice (diffusion panel lattice 40 in FIGS. 1 and 2), the wood exterior character can be integrated into the desired design. 5. By using wood as a material, it is possible to emit the different wood scents of each species of tree. 6. Conventionally, non-combustible wooden sound-absorbing panels have mainly been perforated panels and have poor design options, but by arranging a lattice, the design options are dramatically improved, from a purely parallel lattice as shown in Figure 1 to an orthogonal lattice, etc. Furthermore, because they are made of wood, they can be easily painted and can be easily given a variety of colors. 7. All components can be made of non-flammable materials, so construction is possible even in cases where non-flammable performance is required.

[0009] (Example) A back panel 10 measuring 600x600mm square and 50mm deep was created, a 25mm thick glass mat was used as the sound absorbing mat 20, and the front diffusion panel 30 was made from cedar, cypress and Japanese cypress. 1) Twelve panels of the sound-absorbing panel 1 were installed on two walls of a room of approximately 30 square meters, and the sound attenuation was measured, and a significant change was observed. 2) The sound-absorbing panel 1 was installed on three sides of a machine tool, and the noise heard through the wall while the machine was running was measured. The noise level was reduced to 90dB or 85dB. 3) Sound-absorbing panel 1 made from cypress and Japanese cypress gave off a faint woody scent in a room of approximately 30 square meters.

[0010] The product size can be any size, such as 300x300 (length x width), 450x450, 600x600, or 300x600. All common tree species can be used as materials, and both solid wood and laminated wood can be used for manufacturing.

[0011] As described above, the sound-absorbing panel 1 of this embodiment can achieve high sound-absorbing performance while realizing high design quality. For example, as shown in FIG. 4, by arranging nine sound-absorbing panels 1 with the lattice orientations alternating, a sound-absorbing surface with a highly aesthetic design can be constructed. [Explanation of symbols]

[0012] 1...Sound-absorbing panel 10...Rear panel 20...Sound-absorbing mat 30...Diffusion panel 40...Diffusion panel configuration grid

Claims

[Claim 1] The rear panel and a sound-absorbing mat inserted inside the rear panel; a diffusion panel that is inserted inside the rear panel and overlaps the sound-absorbing mat; a grid formed on the diffusion panel; A sound-absorbing panel having:

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