JP3634567B2 - Translucent sound insulation board - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a translucent sound insulation board installed along a road or a railway line for the purpose of sound insulation.
[0002]
[Prior art]
In order to insulate noise from vehicles, sound insulation boards are installed along roads and railway lines. Some of these sound insulation plates are made of non-transparent sound insulation plates such as PC concrete and metal, but those made of non-translucent sound insulation plates are excellent in sound insulation, but are installed on elevated roads. In some cases, the weight of the foundation becomes heavy in relation to the foundation, and the surrounding scenery is blocked by the opaqueness, so that there is a feeling of pressure and the scenery is poor. On the other hand, a sound insulation board made of FRP is also used to reduce the weight, but the problem that the light transmittance is low and the surrounding scenery is blocked is not solved.
[0003]
[Problems to be solved by the invention]
Therefore, in recent years, sound insulation plates made of a light-transmitting polycarbonate plate have been widely used so as to reduce the weight and prevent the surrounding scenery from being obstructed. However, polycarbonate is excellent in translucency and impact resistance, but has a problem that weather resistance is difficult, and since surface hardness is not high, contamination recovery is poor and it is easily damaged during cleaning. . For this reason, weather resistance film is applied to the surface of the polycarbonate plate to improve weather resistance, or silicone resin is coated to improve scratch resistance, but both increase costs and improve sound insulation. In order to achieve this, the thickness must be increased, and the cost is increased because the resin is expensive.
[0004]
On the other hand, if a relatively inexpensive acrylic resin plate is used, a sound insulation plate with excellent weather resistance, scratch resistance, contamination resistance, contamination recovery property, and translucency can be obtained. Because it is scarce, it is easy to break when it hits an accident vehicle or its load, etc. In addition, if it breaks, the fractured shape becomes sharp, and it may be scattered and dropped under the elevated road. There is a problem in use.
[0005]
Therefore, the present invention solves the above-mentioned problems, practically has no problem in weather resistance, scratch resistance, contamination resistance, and contamination recovery property, has sufficient sound insulation performance, and does not fall off. It is intended to provide a translucent sound insulation board.
[0006]
[Means for Solving the Problems]
In order to achieve the above object, the present invention is configured as follows.
That is, the translucent sound insulation board according to the present invention is a translucent sound insulation board installed along the roads and railways for the purpose of sound insulation, and has translucency with an acrylic resin board having translucency. The polycarbonate plate is placed facing each other with a space between them, a sealing material is attached to the periphery, and a reinforcing frame material is attached to the outer periphery, with the acrylic resin plate facing the roadway and the polycarbonate plate facing the other side of the roadway It is characterized by being installed .
[0007]
According to the present invention, the acrylic resin plate excellent in weather resistance, scratch resistance, stain resistance, and contamination recovery property and the polycarbonate plate excellent in impact resistance are disposed opposite to each other. When installing along the roadway, etc., the acrylic resin plate is placed on the roadway side and the polycarbonate plate is placed on the opposite side of the roadway. In addition, there is little damage due to cleaning, and even if the acrylic resin plate is damaged by hitting an accident vehicle or its load, it is protected by the polycarbonate plate, and the acrylic resin plate is not scattered and dropped on the opposite side of the road.
[0008]
In addition, the acrylic resin plate and the polycarbonate plate are placed facing each other with a space between them, and since a space is formed between the acrylic resin plate and the polycarbonate plate, the noise is attenuated in this space and the sound insulation performance is improved. To do.
[0009]
Furthermore, the sealing material attached to the periphery suppresses vibrations of the acrylic resin plate and polycarbonate plate caused by wind pressure when passing through the vehicle, and the shrinkage due to thermal expansion is absorbed, causing the acrylic resin plate and polycarbonate plate to warp due to the shrinkage. No cracking occurs, and rainwater, insects, dust and the like do not enter between the acrylic resin plate and the polycarbonate plate.
[0010]
Further, the acrylic resin plate and the polycarbonate plate are reinforced in strength by the reinforcing frame member attached to the outer periphery, and the self-supporting property as a translucent sound insulating plate at the time of transportation and installation is provided.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be specifically described below with reference to the drawings.
First, FIG. 1 is a perspective view showing an embodiment of the present invention, and FIG. 2 is a partial sectional view thereof.
[0012]
1-2, 1 is an acrylic resin plate having translucency, and 2 is a polycarbonate plate having translucency. The acrylic resin plate 1 and the polycarbonate plate 2 are arranged to face each other with a space therebetween so as to form a space portion 3 therebetween, and a sealing material 4 made of synthetic resin, rubber or the like is disposed on the peripheral edge portion of the acrylic resin plate 1. And the polycarbonate plate 2 are mounted. The sealing material 4 keeps the distance between the acrylic resin plate 1 and the polycarbonate plate 2 constant, and rainwater, insects, dust, and the like do not enter between the acrylic resin plate 1 and the polycarbonate plate 2. .
[0013]
Reference numeral 5 denotes a reinforcing frame member made of an aluminum alloy or the like attached along the outer periphery, and a die member having a substantially U-shaped cross section in which an insertion portion 51 into which the sealing material 4 can be inserted is formed is used. The sealing material 4 is attached to the outer periphery of the sealing material 4 by inserting the sealing material 4 into the insertion portion 51 of the reinforcing frame material 5. Although the transparency is somewhat hindered by attaching the reinforcing frame member 5, the acrylic resin plate 1 and the polycarbonate plate 2 are attached to the reinforcing frame member 5 via the sealing material 4 without being attached directly to the reinforcing frame member 5. Therefore, the external force from the reinforcing frame member 5 is not directly transmitted to the acrylic resin plate 1 and the polycarbonate plate 2, but is absorbed by the sealing material 4, so that it is reinforced in strength and at the time of transportation and installation. It is self-supporting as a translucent sound insulation board.
[0014]
The above-described translucent sound insulation board P according to the present invention can be installed along the longitudinal direction of a road on a side edge of an expressway or the like as shown in FIG. That is, in FIG. 3, 6 is a column made of H-shaped steel standing at a predetermined interval along the longitudinal direction of the road on the side edge of an expressway or the like. A sound insulating plate P is held. When installing the translucent sound insulation board P, the acrylic resin plate 1 having excellent weather resistance, scratch resistance, contamination resistance, and contamination recovery property is placed on the roadway side, and the polycarbonate plate having excellent impact resistance. Install 2 facing the other side of the roadway. By doing so, the roadway side where dirt is particularly attached is the acrylic resin plate 1 so that it is not easily contaminated, and there are few scratches due to cleaning, and the accident vehicle or its load hits the acrylic resin plate 1. Is protected by the polycarbonate plate 2, and the acrylic resin plate 1 is not scattered and dropped on the opposite side of the road.
[0015]
The translucent sound insulation board concerning this invention can also be made into the form as shown by the following FIGS.
[0016]
That is, in the embodiment shown in FIG. 4, separate sealing materials 4 are attached to the peripheral edge of the acrylic resin plate 1 and the peripheral edge of the polycarbonate plate 2, respectively, and each sealing material 4 is inserted into the reinforcing frame material 5. A mold member having a substantially E-shaped cross section in which two insertable portions 51 that can be attached are formed is used, and each sealing member 4 is inserted into each insert portion 51, whereby the reinforcing frame member 5. Is attached to the outer periphery.
[0017]
Further, in the form shown in FIG. 5, like the form of FIG. 2, one sealing material 4 is mounted so as to straddle the acrylic resin plate 1 and the polycarbonate plate 2, but the reinforcing frame material 5 has a cross section. L-shaped steel having an L-shape is used. Then, the reinforcing frame member 5 and the sealing member 4 are fixed by bolts 52, whereby the reinforcing frame member 5 is attached to the outer periphery.
[0018]
Further, in the form shown in FIG. 6, both sides of the acrylic resin plate 1 and the polycarbonate plate 2 of the above form are flat, but the inner surface side of the polycarbonate plate 2 is made uneven, and the prism surface 7 that polarizes sunlight. Is formed. For example, on an elevated road that passes through a residential area, sunlight is blocked by the elevated road, so that sunlight in surrounding houses is hindered. Therefore, in this embodiment, the prism surface 7 is formed on the polycarbonate plate 2, and sunlight is polarized by the prism surface 7 so that the range in which the sunlight is prevented is minimized. The prism surface 7 may be formed on the acrylic resin plate 1, or may be formed on both the acrylic resin plate 1 and the polycarbonate plate 2.
[0019]
However, both the acrylic resin plate 1 and the polycarbonate plate 2 are easily contaminated when the concave and convex prism surface 7 is formed on the outer surface side, and the adhered dirt is difficult to remove. Preferably, it is formed on the inner surface side that does not adhere, and the outer surface side is flat.
[0020]
【The invention's effect】
According to the present invention, when installing along roads or along railway lines, the acrylic resin plate is installed on the roadway side, and the polycarbonate plate is installed on the opposite side of the roadway, so that the roadway with particularly large amount of dirt is attached. Since the side is an acrylic resin plate, it is not easily contaminated, and there are few scratches due to cleaning, and even if the acrylic resin plate is damaged by an accident vehicle or its load, it is protected by a polycarbonate plate, and the acrylic resin plate is No splattering and falling on the other side.
[0021]
In addition, since a space is formed between the acrylic resin plate and the polycarbonate plate, the noise is attenuated in this space, the sound insulation performance is improved, and the acrylic is generated by the sealing material due to wind pressure when passing through the vehicle. The vibration of the resin plate and the polycarbonate plate is suppressed, the shrinkage due to thermal expansion is absorbed, the acrylic resin plate and the polycarbonate plate are not warped or cracked, and rainwater is placed between the acrylic resin plate and the polycarbonate plate. In addition, insects, dust, etc. do not invade, and the acrylic resin plate and polycarbonate plate are reinforced by the reinforcing frame material, and it is self-supporting as a translucent sound insulation plate during transportation and installation Is done.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of the present invention.
FIG. 2 is a partial cross-sectional view of FIG.
FIG. 3 is a perspective view showing an example of a construction state of the present invention.
FIG. 4 is a partial cross-sectional view showing another embodiment of the present invention.
FIG. 5 is a partial cross-sectional view showing another embodiment of the present invention.
FIG. 6 is a partial cross-sectional view showing another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Acrylic resin board 2 Polycarbonate board 3 Space part 4 Sealing material 5 Reinforcement frame material 51 Insertion part 52 Bolt 6 Strut 7 Prism surface P This invention translucent sound insulation board

Claims (2)

A light-transmitting sound insulating board installed along the roads and railroads for the purpose of sound insulation, and a transparent acrylic resin plate and a light-transmitting polycarbonate plate are arranged facing each other with a space therebetween And a sealing material on the periphery, a reinforcing frame material is attached to the outer periphery, an acrylic resin plate is installed on the roadway side, and a polycarbonate plate is installed on the opposite side of the roadway. Board. 2. The translucent sound insulating board according to claim 1, wherein a prism surface for polarizing sunlight is formed on an acrylic resin plate and / or a polycarbonate plate.

Images