JPS6157738A - Interior panel for building - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION A. Field of Industrial Application The present invention relates to the improvement of interior panels installed on the ceilings and walls of buildings. This object provides an easy-to-handle interior panel that has appropriate sound absorption properties and is combined with a glass l1ff1 reinforced cement frame board that has excellent dimensional stability and formability.

Existing technology and its problems Architectural interior panels made of glass fiber reinforced cement have a strength of 1.
It has become widely used due to its excellent performance such as dimensional stability, durability, nonflammability, and moldability, but it itself has poor sound absorption properties, so in order to improve the acoustic effect in the room, it is necessary to coat the panel surface. Construction methods such as pasting sound-absorbing materials such as rock wool boards, and placing sound-absorbing materials between adjacent panels when installing panel interiors are being adopted. However, even with these methods, it was difficult to obtain sufficient acoustic effects.

On the other hand, the aluminum powder sintered porous plate has a light n1. Hard 9 Breathable and excellent sound absorbing material (Special Publication No. 56-18646)
Although it is suitable for absorbing sound in rooms where noise is generated, it cannot necessarily be said to be sufficient as an interior panel for music halls, conference rooms, etc. where appearance as well as acoustic effects are important.

Means for Solving Problem C8 The present invention utilizes a porous flat plate sintered with aluminum powder in order to improve the complexity of construction based on the low sound absorption properties of the above-mentioned interior panel made of reinforced cement made of glass. Focusing on this, they found that by combining the two together, the sound absorption performance was significantly improved and favorable acoustic effects could be obtained, and this was the result.

That is, the present invention is an architectural interior panel in which a frame board made of Gala 2431 reinforced cement is integrally bonded to the periphery of a porous flat plate sintered with aluminum powder.

Hereinafter, the embodiments shown in the drawings will be explained in detail.

Figure 1 is a perspective view of a flat interior panel, and Figure 2 is a partially enlarged sectional view taken along the ΔΔ line in Figure 1, where 1 is a porous flat plate sintered with aluminum powder, and 2 is a flat plate made of glass fiber reinforced cement. It is a shaped frame board.

The aluminum powder sintered porous plate 1 is a product of NDC based on the invention disclosed in the above-mentioned patent publication, and usually has a porosity of 3.
5-50%, specific gravity 1.7 or less, thickness 2.5-3.0mm
have.

Glass M H (reinforced cement frame plate 2 is made of cement containing approximately 5% glass fiber chopped strands).

It is a hardened mortar made of sand, and is usually molded to a thickness of 5 to 10 mm by a manufacturing method such as a casting method or a direct spraying method.

The aluminum powder sintered porous plate 1 is made of glass 11i.
The peripheral edge part 3 of the frame board 2 made of reinforced cement is adhesively fixed so as to be flush with the lower surface of the frame board 2.

The panel of this embodiment is suitable as a wall panel.

FIG. 3 is a perspective view of a three-dimensional interior panel, and FIG. 4 is a partially enlarged sectional view taken along line BB in FIG.
ff1 Reinforced cement frame plate 2' is inclined surrounding wall 4° inner peripheral edge 5
The panel is the same as the previous embodiment except that it has a convex three-dimensional shape, and the panel of this embodiment is suitable as a ceiling panel.

In both of the above embodiments, the aluminum powder sintered porous flat plate 1 is fixed to the glass fiber reinforced cement frame plate 2.2' at its peripheral edge 3, and the area of this fixed part is kept as small as possible. It is desirable to increase the effective sound-absorbing area of the powder-sintered porous flat plate 1, and for this purpose, it is desirable to reinforce the adhesion strength as described below.

FIG. 5 is a perspective view of an example for increasing the fixing strength, in which along the periphery of the aluminum powder sintered porous flat plate 1,
A thin metal template 6 with a reinforcing mold cross section is fixed by gluing or screwing so that its bottom plate 6' is located at the outer periphery, and as shown in the cross-sectional view of FIG. 6, glass fiber reinforced cement is attached. After forming the frame plate 2, the upper edge of the standing plate 6'' of the thin metal template 6 is folded back onto the frame plate 2 surface, so that the aluminum powder sintered porous flat plate 1 cannot be detached from the frame plate 2. Fixed and supported.

FIG. 7 is a perspective view of the thin metal template 6 described above.

In addition, as another means, in the thin metal template 6 having a 1-shaped cross section, a plurality of curved-head bins 7 are arranged at appropriate intervals on the bottom plate 6' as shown in the perspective view of FIG. The bottle 7 may be planted in a frame plate 2 made of glass fiber reinforced cement and embedded therein, or a template may be used to engage the upper surface of the frame plate 2, as shown in FIG. 8 may be provided on the periphery of the aluminum powder sintered porous plate 1.

2. Example aluminum powder sintered porous flat plate, porosity 35%, ratio m 1.7. Thickness 2.5mm, 495x495m
1000 x 1000 mm with a thickness of 10 mm, with a 25 mm wide adhesive surface around the periphery.
A frame plate made of glass fiber reinforced cement was fixed to form an interior panel similar to that shown in the first figure.

For comparison, we took a flat panel made only of Gala 2411 reinforced cement (panel ■) and a panel made only of porous flat plate sintered with aluminum powder (panel ■), each of which had a reverberation room method sound absorption coefficient of LJIS/l-1409. ) was measured and the following result was 14.

Frequency Panel I Panel■ Invention panel (Hz
) (10mm thickness) (2.5mm thickness) 250
0.10 0.73 0.51500
0.08 0.92 0.641000
0.08 0.79 0.552000
0.08 0.62 0.43 As is clear from the above results, the panel of the present invention in which approximately 25% of the area of the panel made of glass my reinforced cement was replaced with a porous plate sintered with aluminum powder had a remarkable -〇 - An improvement in sound absorption coefficient can be seen.

Therefore, the interior of the room equipped with the panels of the present invention has music.

Because it has appropriate sound absorption and reflection properties, there are no phenomena such as echoes in any location, and the room acoustics are uniform, creating a suitable indoor sound field.

Effects of the Invention The interior panel of the present invention is a porous flat plate sintered with aluminum powder held together by a frame plate made of glass fiber reinforced cement, so it is lightweight and strong, easy to construct and handle, and has sound absorption properties. is suitable for obtaining acoustic effects.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of an interior panel embodying the present invention, FIG. 2 is a partially enlarged sectional view taken along line AA in FIG. 1, FIG. 3 is a perspective view of an interior panel according to another embodiment, and FIG. Figure 3 is a partially enlarged sectional view taken along the line BB, Figure 5 is a perspective view showing a means for increasing fixed bullet holes on a porous flat plate sintered with aluminum powder, and Figure 6 is a partial sectional view showing the fixed state in the case shown in Figure 5. , FIG. 7 is a perspective view of a thin metal template, FIG. 8 is a perspective view of another thin metal template, and FIG. 9 is a partial sectional view of a state in which the thin metal template is fixed. 1... Aluminum powder sintered porous flat plate 2... Glass mm reinforced cement frame plate 3... Periphery 4... Slanted surrounding wall 5... Inner periphery 6... Thin metal template 7. ... Curve head bin 1 Figure-13 b, 3]

Claims (1)

[Claims] An architectural interior panel with a glass fiber-reinforced cement frame board integrated around the periphery of a porous flat plate sintered with aluminum powder.