JPH0821019A - Soundproof panel body - Google Patents

Abstract

PURPOSE:To reduce the weight of a panel structure and to improve the sound proofness thereof by making surface and back materials for forming a panel unit in a honeycomb structure, and using glass fiber reinforced plastic material for the above honeycomb structures. CONSTITUTION:A panel unit 1 is so constructed that a space 9 is formed by a surface material 4 and a back material 5. The surface material 4 is formed by an inside plate 4a, an outside plate 4b, and a honeycomb core material 4c, and the back material 5 is formed by an inside plate 5a, an outside plate 5b, and a honeycomb core material 5e. All the raw materials for forming the above materials are made by glass fiber reinforced plastic, four-peripheral frames 11 are disposed on the upper and lower ends of the materials, and angle materials 12 are disposed on the upper and lower ends and the central part thereof to promote reinforcement. Further, the respective cells of the honeycomb core materials 4c, 5c are filled with a soundproof material 7 made by hard urethane, and the space part 9 is filled with a soundproof material 10 made by glass wool.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soundproof panel body which constitutes a shutter for a building, a door and a partition wall.

[0002]

BACKGROUND OF THE INVENTION Generally,
Some of these types of panel bodies are installed at the entrances and exits of theaters, broadcasting rooms, soundproof rooms, etc. In such a case, soundproof panel bodies are required. Conventionally, as such a soundproof panel body, the front and back plates are formed of steel plates, and the hollow part between these front and back plates is filled with a sound absorbing material (soundproofing material, sound insulating material) such as glass wool. There is. However, since the front and back plates of this product are made of steel plate material, the weight inevitably increases,
For example, when this panel body is used as a panel shutter, there is a risk that the panel body will bend due to the weight of the front and back plate surfaces, and in order to avoid this, a reinforcing material such as an angle is provided between the front plate and the back plate. It is necessary to hang a large number. However, in this way, the weight of the panel body becomes even heavier, which means that the switch has to be large and has a large capacity. There is a problem that these members must be strong. Therefore, it is proposed that the front and back plates be made of a light material such as plastic. Generally, if such a light material is used, the soundproofing property will decrease this time. Can not.

[0003]

SUMMARY OF THE INVENTION The present invention was devised with the object of providing a soundproof panel body capable of eliminating these drawbacks in view of the above circumstances. The front and back plates of the panel body are composed of an inner plate member, an outer plate member, and a honeycomb core member filled between the inner and outer plate members, and the inner and outer plate members and the honeycomb core member are formed by using glass fiber reinforced plastic. It is characterized by having done.

The present invention, by virtue of this construction, is capable of exhibiting sufficient soundproofing even if the weight of the panel body is reduced.

[0005]

Next, an embodiment of the present invention will be described with reference to the drawings. In the drawings, 1 is a shutter curtain for a panel shutter installed at the entrance of a building,
As for the panel body 2 constituting the shutter curtain 1, the left and right side edge portions are guided up and down by the guide rails 3 to open and close the entrance and exit, etc., as is conventional.

Reference numerals 4 and 5 denote a front plate and a back plate which form the panel body 2. These front and back plates 4 and 5 are inner plate members 4a and 5a, outer plate members 4b and 5b, and inner and outer plate members, respectively. The honeycomb core members 4c and 5c are filled in between, and these inner and outer plate members 4a, 5a, 4
b, 5b and the honeycomb core materials 4c, 5c are all made of glass fiber reinforced plastic. Furthermore, in Example II described later, the honeycomb core materials 4c, 5
Each cell of c is filled with hard urethane foam (polyurethane) having a high open cell rate as the first sound absorbing material 7,
Further, in Example III, the damping material 8 is attached to the inner side surface portions of the inner side plate members 4a and 5a.

On the other hand, a space 9 is formed between the front and back plates 4 and 5, and the space 9 is filled with glass wool as a second sound absorbing material 10. In the figure, 11 is a four-round frame material that forms a frame around the four circumferences of the panel body 2, and 12 is a reinforcing member for a total of three, which are erected in the upper and lower end portions between the front and back plates 4 and 5, and in the vertical center. Angle material.

[0008] A number of panel bodies 2 which were actually made to show how effective the embodiment of the present invention is
Was tested according to the sound transmission loss measurement method in the laboratory of Japanese Industrial Standard (JIS) A1416. First, the panel body 2 of Example I has a vertical dimension of 1980 mm, a horizontal dimension of 1980 mm, and a thickness of 90.0 mm.
5 is made of glass fiber reinforced plastic having a thickness of 15.5 mm, and a honeycomb core material 4 c, 5 c having a cell size of 23 mm is filled between the inner and outer plate members 4 a, 4 b, 5 a, 5 b, and a four-sided frame The material 11 is formed by using a zinc-plated steel sheet having a thickness of 2.3 mm which is formed by cold rolling and treated with a phosphate-based solvent, and the angle material 12 is formed by cold rolling. It is formed by using a zinc-plated steel sheet of 1.6 mm, and the space 9 has a density of 16 as the sound absorbing material 10.
A glass wool filled with kg / m ³ and a thickness of 75 mm was used. The front and back plates 4 of the panel body 2 of this Example I,
The areal density of No. 5 was 6.7 kg / m ² .

Further, the honeycomb core materials 4c and 5c of the panel body 2 of the embodiment I have a density of 39 kg as the sound absorbing material 7.
Example II is filled with urethane foam having a high open cell ratio of / m ³ . The areal densities of the front and back plates 4, 5 of the panel body 2 of Example II were 7.4 kg / m ² .

Further, a modified bituminous damping material 8 having a thickness of 1.5 mm is attached to the inner side surfaces of the inner side plate members 4a and 5a of the panel body 2 of the above-mentioned Example I, and this is designated as Example III.
In the panel body 2 of Example III, the surface densities of the front and back plates 4 and 5 were 9.1 kg / m ² with the damping material 8 attached.

Furthermore, the modified bituminous damping material 8 having a thickness of 1.5 mm is attached to the inner side surface of the inner plate material of the panel body 2 of Example I, and the honeycomb core materials 4c and 5c are
Example IV is a sound absorbing material 7 filled with urethane foam having a high open cell rate and a density of 39 kg / m ³ .
The surface densities of the front and back plates 4, 5 of the panel body 2 of this Example IV were 9.8 kg / m ² .

On the other hand, with the same dimensions as the panel body 2 of Example I,
The front and back plates 13 and 14 have a thickness of 1.
6 mm zinc plated steel plate is used, and the angle member 16 is
A conventional example was formed by using a 3.2 mm-thick zinc-plated steel sheet formed by cold rolling. Furthermore, in the panel body 2 of this conventional example, the space between the front and back plates 13 and 14 has a density of 16 kg / m ³ as the sound absorbing material 15 and a thickness of 1
It is filled with 00 mm of glass wool, and the modified bituminous damping material 8 having a thickness of 1.5 mm is attached to the inner side surfaces of the front and back plates 13 and 14. The surface density of the front and back plates 13 and 14 of this conventional panel body is 15.68 kg.
/ M ² .

When the sound transmission loss of each of these panel bodies 2 was measured according to the above-mentioned measuring method, the sound transmission loss of about 16 to 49 dB (decibels) was measured in Example I, and a considerable soundproof effect was obtained. Is recognized. Further, in the case of the example II, 0 compared to the case of the example I.
It was measured that the sound transmission loss increased by about 6 dB. Furthermore, the sound transmission loss of the example III is increased by about 0 to 18 dB as compared with that of the example I.
It was measured that the sound transmission loss increased by 10 dB or more in the high frequency region of 000 Hz or more. Still further, that of Example IV is 12% less than that of Example III.
It was measured that the sound transmission loss was increased by 2 to 6 dB in the frequency range of 50 to 3150 Hz. Then, it was found that the example IV had a soundproofing performance which was almost comparable to that of the conventional example, although the sound transmission loss was slightly reduced. Incidentally, Examples I, II, I
The measurement results of the sound transmission loss at each frequency of II, IV and the conventional example are shown in FIGS. 7 to 10 and 12.

In the embodiment of the present invention constructed as described above, since the front and back plates 4 and 5 of the panel body 2 are made of glass fiber reinforced plastic, the conventional front and back plates are made of steel plate material. Compared with this, the front and back plates 4, 5 themselves can be made lighter in weight, and it is not necessary to support a large number of reinforcing members between the front and back plates 4, 5, so that the panel body 2 can be significantly reduced in weight, and the switchgear This can largely contribute to making the respective members lighter and more compact, but in this case, the front and back plates 4, 5 are the inner plate members 4a, 5a,
It has a multilayer structure of the outer side plate members 4b, 5b and the honeycomb core members 4c, 5c filled between the inner and outer side plate members. Therefore, the soundproofing performance is almost impaired as compared with the conventional steel plate member. There is nothing. As a result, even the lightweight panel body 2 can exhibit sufficient soundproofing.

Further, the cells of the honeycomb core materials 4c and 5c are filled with the sound absorbing material 7, the damping material 8 is attached to the inner side surfaces of the front and back plates 4 and 5, and the sound absorbing material is provided between the front and back plates 4 and 5. By filling the material 10, the soundproofing effect can be further improved.

[0016]

In summary, since the present invention is constructed as described above, the front and back plates of the panel body are formed by using glass fiber reinforced plastic, thereby achieving a significant weight reduction of the panel body. And contributes to making the switch smaller and lighter and lighter and more compact,
The front and back plates have a multi-layer structure of an inner plate member, an outer plate member, and a honeycomb core member filled between the inner and outer plate members, so that they are superior in strength and compared with those formed of conventional steel plate members. It will be able to demonstrate high soundproofing performance that is almost comparable. Furthermore, by filling the cells of the honeycomb core material with a sound absorbing material, attaching a damping material to the inner surface of the front and back plates, and filling a sound absorbing material between the front and back plates, the soundproofing effect can be further improved. It will be.

[Brief description of drawings]

FIG. 1 is a schematic view of a panel shutter.

FIG. 2 is a vertical sectional view of a panel body of Example I.

FIG. 3 is a vertical sectional view of a panel body of Example II.

FIG. 4 is a vertical sectional view of a panel body of Example III.

FIG. 5 is a vertical sectional view of a panel body of Example IV.

FIG. 6 is a partially enlarged view of the honeycomb core material.

7 is a graph showing the measurement results of sound transmission loss in the panel body of Example I. FIG.

FIG. 8 is a graph showing the measurement result of sound transmission loss in the panel body of Example II.

FIG. 9 is a graph showing the measurement results of sound transmission loss in the panel body of Example III.

FIG. 10 is a graph showing the measurement results of sound transmission loss in the panel body of Example IV.

FIG. 11 is a vertical cross-sectional view of a conventional panel body.

FIG. 12 is a graph showing a measurement result of sound transmission loss in a conventional panel body.

[Explanation of symbols]

 2 panel body 4 surface board 4a inner board material 4b outer board material 4c honeycomb core material 5 back board 5a inner board material 5b outer board material 5c honeycomb core material 7 sound absorbing material 8 vibration damping material 10 sound absorbing material

Continuation of front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display area E06B 9/02 K

Claims (5)

[Claims] 1. The front and back plates of the panel body are composed of an inner plate member, an outer plate member, and a honeycomb core member filled between the inner and outer plate members, and the inner and outer plate members and the honeycomb core member are glass fiber reinforced. A soundproof panel body made of plastic. 2. The soundproof panel body according to claim 1, wherein the cells of the honeycomb core material are filled with a sound absorbing material. 3. The soundproof panel body according to claim 2, wherein hard foamed urethane having a high open cell rate is used as the sound absorbing material. 4. The soundproof panel body according to claim 1, wherein a damping material is fixed to the inner side of the inner plate member. 5. The soundproof panel body according to claim 1, wherein a sound absorbing material is filled between the front plate and the back plate.