JPS6237454A - Sound absorbing structure of large mountain shaped roof - 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 [Field of Industrial Application] The present invention relates to a sound absorbing structure for a large mountain-shaped roof that has a simple structure, can be easily constructed, and has excellent sound absorbing effects.

[Conventional technology and its problems, etc.]

Traditionally, soft cotton-like materials such as glass wool have been used as sound-absorbing materials, but when applying sound-absorbing treatment to a building using glass wool, the surface of the glass wool is covered with a special material to supplement its strength, and the appearance etc. It was necessary to arrange the

Moreover, by doing such a thing, the sound absorption properties of the glass wool may deteriorate, and there is a problem in that it is not possible to obtain the desired sound absorption effect even though it takes time and effort to manufacture.

[Means for solving problems]

Therefore, as a result of intensive research to solve the above-mentioned problems, the inventor has developed the present invention so that the cross-section of a large mountain-shaped roof material is relatively parallel to both inclined sides on the indoor side. By attaching a sound absorbing material made of high-density glass wool molded into a flat plate, and by arranging such large chevron roofing materials in parallel and connecting them to the sound absorbing structure of large chevron roofs, the sound absorbing properties of glass wool can be improved. It can be fully utilized and its sound absorbing treatment can be carried out extremely easily, which solves the surface marking problem.

〔Example〕

Embodiments of the present invention will be described below with reference to FIGS. 1 to 6.

A is a large chevron-shaped roofing material with a long span, and sloped sides 2.2 facing outward and downward are formed from both sides of the top side 1 of this large cross-sectional chevron, and from the lower end of this sloped side 2.2 ( On the other hand, the substantially flat bottom portions 3, 3 are formed with a relatively narrow width,
A sloped edge 4.4 of relatively low height facing outward and upward from the bottom portions 3, 3 is integrally molded (the first
(See Figures 3 to 3).

Reference numeral 5 denotes an internal frame, which has approximately the same cross-sectional shape as the large-sized chevron roofing material A. Specifically, the inclined members 5b, 5b from both sides of the apex ratio A53 are connected to the inclined side 2 of the large-sized chevron-shaped roofing material A. ,2
The bottom member 5c is provided at approximately the same inclination angle as the bottom member 5c from both lower ends of the inclination members 5b, 5b.

5C (see Fig. 3) 6 The bottom members 5c, 5c at both ends of the inner rib 5 are provided with L-shaped fittings 6.6 symmetrically.
is fixed (see Figures 2 and 3).

On the indoor side of the large chevron roofing material, the inner inclined side of 2゜2 is
A sound absorbing material 7 is attached (see FIGS. 1 to 3).

This sound absorbing material 7 has a weight of about 60 kg/m to about 120 kg/m.
The comparatively high-density glass wool of d is molded into a flat plate shape with a thickness of about 10 cm to about 10 cm.

This sound absorbing material 7 is placed on the inner inclined side 2°2 of the large chevron-shaped roofing material A as a parting material 8. It is fixed by an illumination reflector plate 9 (see FIGS. 1 to 3).

The end + A8 is one side of the flat main plate 8a: U at ζ
A gutter-shaped portion 8b is formed, and a retaining piece 8C is integrally formed on the other end of the main plate 8a (see FIGS. 2 and 3).

The main plate 8a of the parting material 8 is fixed to the lower side of the L-shaped metal fitting 6 provided on the bottom member 5c of the roof J+, 5 with bolts, etc., and the gutter-shaped part 8b of the parting material 8 are attached so that they face each other inwardly (Figs. 2 and 3).
(see figure).

In addition, the illumination reflector plate 9 has bottom sides 9b at both lower ends of the gate-shaped section 9a, and inclined edges 9c, 9c are integrally molded on the inside and above the outer ends of the 9b (see FIG. 2). (See Figure 4).

This illumination reflecting plate 9 includes the top members 5a of the inner bones 5.5,
5a... with bolts or the like.

The lower end of the sound absorbing material 7 is placed on the gutter-shaped part 8b of the parting member 8, and the upper end of the sound absorbing material 7 is abutted against the inclined edge 9C of the lighting reflector 9 and fixed to the large chevron-shaped roof material A. It is something.

The parting member 8 and the illumination reflecting plate 9 may be made long in the longitudinal direction, or may be of a predetermined length in a connected manner, and may be used by being connected and formed into an appropriate length.

Actually, when installing the sound absorbing material 7, first insert it by lifting the upper end of the sound absorbing material 7 between the sloped side 2 of the large chevron roofing material A and the sloped edge 9C of the lighting reflector 9. , and is attached so that its lower end is placed within the gutter-like portion 8b of the parting member 8.

In the figure, 10 is a joiner, which is used as a joint for connecting sound absorbing materials 7 and 7 of unit length.

As an embodiment of the joiner 10, a metal band plate is used which is bent in the width direction so that the open sides of the cross section are U-shaped and face outward from each other. Also, relatively small H-section steel may be used.

As shown in FIG. 4, the side ends of adjacent sound absorbing materials 7.7 are inserted into both U-shaped portions of the joiner 1O and connected.

Reference numeral 11 denotes a heat insulating material such as cotton-like low-density glass wool, which is provided between the inclined side 2 and the sound absorbing material 7 and between the top side 1 and the lighting reflector 9.
(See Figures 1 and 2), but the insulation material 11 may not be provided (see Figure 3).
(see figure).

12 is a pedestal, and 13 is a structural member such as a cross beam. The pedestal 12 is fixed onto a structural member 13 at predetermined intervals. The L fittings 6, 6 of the large-sized chevron-shaped roofing material A are mounted and fixed on the pedestal 12.12. 14 is a wall of the structure.

〔Effect of the invention〕

In the present invention, a sound absorbing material 7 made of relatively high-density glass wool molded into a flat plate is attached so as to be substantially parallel to the inner inclined sides 2, 2 on the indoor side of a large mountain-shaped roof material A having a mountain-shaped cross section. By arranging such large-sized chevron roofing materials A in parallel and creating a sound-absorbing structure of a large-sized chevron-shaped roof in which adjacent ones are connected, firstly, an extremely superior sound-absorbing effect can be obtained, and secondly, an excellent sound-absorbing effect can be obtained. The sound absorbing material 7 protects the indoor side of the large chevron roofing material.Thirdly, the sound absorbing material 7 can be expected to have a 4-minute insulation effect.Fourthly, the sound absorbing material 7 of the present invention is easy to process. It has the effect of improving the efficiency of on-site work.

To explain these effects in detail, firstly, in the present invention, relatively high density (approximately 5Qkg/+y? to approximately 12
The sound absorbing material 7 is made by molding glass wool (0 kgl rl) into a flat plate shape. This relatively high-density glass wool has outstanding sound absorption properties, and as is clear from Figure 6, it has an extremely short reverberation time compared to conventional sound absorption materials. ing.

In addition, since the sound absorbing materials 7, 7 are attached approximately parallel to both 2°2 sloped sides of the large mountain-shaped roof material on the indoor side, as shown in Fig. 5, the sound absorbing materials 7 on one side of the The reflected sound is
Sound is absorbed by the sound absorbing material 7 on the side opposite to the sound absorbing material 7, and the sound reflected there can be made extremely small. This kind of mountain shape is +! ! The interior of the large chevron roof (indoor)
It has the great effect of absorbing noise extremely well.

Furthermore, since the comparatively high-density glass wool of the present invention is used as the sound absorbing material 7 by molding it into a flat plate almost as it is without adding any other material, it is not used as a cotton-like material as in the past. There is also the problem that the surface of the glass wool is coated with a separate glass to reduce its sound absorption properties, and an excellent sound absorption effect can be obtained.

Secondly, in the present invention, the sound absorbing material 7 is made of relatively high-density glass wool molded into a flat plate, so it can be extremely strong. As a result, the ceiling board using the sound-absorbing material 7 can also provide strong protection for the indoor side of the large-sized chevron-shaped roof material A. That is, if the present invention is used in a gymnasium, it can be used during ball games. The sound absorbing material 7 can reduce the impact of the ball when it collides with the ceiling plate, and can protect the ceiling plate from destruction and damage.

Thirdly, in the present invention, since the sound absorbing material 7 is made of relatively high-density glass wool, an extremely good heat insulating effect can be obtained. As described above, the sound absorbing material 7 of the present invention has not only a sound absorbing effect but also a heat insulating effect, so that no new heat insulating treatment is required, and construction can be carried out quickly and economically.

Generally, glass wool is often used as a heat insulating material, and its heat insulating properties improve as its density increases.

Fourthly, the sound absorbing material 7 is made of glass wool molded into a flat plate shape, and since the glass wool has a relatively high density, the shape will not collapse even during processing such as cutting. Therefore, it can be cut to appropriate dimensions and attached to the large-sized chevron roofing material A at the site, and it can also be made into a size that is easy to carry, resulting in extremely high construction efficiency.

In addition, as shown in FIGS. 1 and 2, if cotton-like low-density glass wool is inserted as a heat insulating material 11 between the sound absorbing material 7 and the inclined side 2 of the large-sized chevron roofing material A, the sound absorbing material In addition, in sports facilities such as gymnasiums, when a ball collides with the ceiling during a ball game, it creates a buffering effect, resulting in sound absorption +47.
It is possible to alleviate the impact applied to the

[Brief explanation of drawings]

The drawings show embodiments of the present invention, in which FIG. 1 is a partially cutaway perspective view of the present invention, FIG. 2 is a sectional view of FIG. 1,
FIG. 3 is a sectional view showing a different embodiment from FIG. 2, FIG. 4 is a perspective view of the main part of FIG. 1, FIG. 5 is a sectional view showing the sound absorption state of the present invention, and FIG. It is a graph showing the characteristics of the invention. A...Large chevron roofing material, 2...Slope side, 7...Sound absorbing material.

Claims (1)

[Claims] (1) Sound-absorbing material made of relatively high-density glass wool molded into a flat plate is installed approximately parallel to both sloped sides on the indoor side of a large mountain-shaped roofing material with a mountain-shaped cross section. A sound-absorbing structure with a large chevron-shaped roof characterized by arranging them in parallel and connecting adjacent ones.