JP3156042B2 - Noise barriers for urban roads - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a relatively short sound-insulating wall installed along a boundary between a road and a sidewalk in an urban area. Although it is a type, its pillars are completely blindfolded and are not designed to appear on the exterior, and are used for urban roads that can be installed using planting blocks that are often installed along sidewalks. Related to sound insulation walls.

[0002]

2. Description of the Related Art Conventionally, on a road in an urban area, a pedestrian is prevented from jumping onto a road at a position along a boundary between a road and a sidewalk.
Alternatively, a guardrail or a protective fence for preventing an erroneous operation accident in which a vehicle or the like plunges into a sidewalk is installed with a relatively short structure. Japanese Utility Model Laid-Open Publication No. 7-25013 discloses that the above-mentioned protective fence is evolved as a sound barrier, and in addition to the function and effect as the original protective fence, tire squeak noise generated on the roadway side, vehicle engine sound, or vehicle An improved sound insulation wall has been proposed that has an effect of reducing aerodynamic noise that cuts off the wind, and a good aesthetic that matches the scenery around the city. The interior of the sound insulation panel is filled with a sound absorbing material, and the surface plate is provided with a sound absorbing hole. However, the sound insulating wall is a sound insulating panel with a built-in support, in which the support is integrated into the sound insulating panel.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to further improve the structure of the sound insulation wall to further improve the aesthetics so as to be in harmony with the cityscape, and to facilitate the installation and construction. It is an object of the present invention to provide a sound insulation wall for an urban road which is improved so that it can be installed even if there is an existing or new planting block often installed on a sidewalk.

[0004]

Means for Solving the Problems As means for solving the above-mentioned problems, the invention according to claim 1 is a sound-insulating wall installed relatively short along a boundary between a roadway and a sidewalk in an urban area, It is composed of a plurality of pillars built at intervals substantially equal to the length of the sound insulation panel, and a sound insulation panel supported between adjacent pillars, and the sound insulation panel is formed of a thin plate on the front side of the roadway side and the sidewalk side. A sound absorbing material is filled in a cavity closed by a rear plate and an end plate connecting an upper end and a lower end of the front plate and the rear plate, and at least a sound absorbing hole is formed in the front plate, and one side surface of the sound insulating panel. A recess having a width and a depth capable of accommodating the support column is formed in the portion, and a receiving hole having a width dimension to be in contact with the outer surface of the recess is formed on the other side surface so as to be substantially flush with the front plate and the rear plate. Makeup splicing piece is approximately the entire length in the height direction Being protruded across, the sound insulation panels located on both sides of the column are stored so as to sandwich the column in the concave portion on one side, and the decorative connecting piece on the other side is brought into contact with the concave portion, It is characterized in that it is fixed by a fixing bolt or the like which penetrates both and is screwed into a support.

According to a second aspect of the present invention, there is provided a sound insulating wall which is installed relatively short along a boundary between a roadway and a sidewalk in an urban area, comprising a plurality of pillars built at intervals substantially equal to the length of the sound insulating panel. And a sound-insulating panel supported between adjacent poles, and the poles have a horizontal base plate at the lower end thereof and a bracket protruding from the lower rear side, each being planted along the sidewalk. And the sound insulation panel is a roadside-side front plate and a sidewalk-side rear plate made of thin plates, and an end plate that connects the upper and lower ends of the front and rear plates. A sound absorbing material is filled in the cavity part closed by, that at least a sound absorbing hole is formed in the front plate, and a concave part having a width and a depth capable of storing the support is formed on one side part of the sound insulating panel, other On the side surface of the front plate and the rear plate, a decorative connecting piece that forms a receiving hole of a width that is in contact with the outer surface of the concave portion substantially flush with the front plate and the rear plate is provided so as to protrude over substantially the entire length in the height direction. With respect to the decorative connecting piece on the rear side, the range in which the bracket of the column is allowed to protrude is cut off, and the sound insulation panels located on both sides of the column are stored so as to sandwich the column in the recess on one side. Another feature is a sound insulation wall juxtaposed with the planting block, in which a decorative connecting piece on the other side is brought into contact with the above-mentioned concave portion, and is fixed by a fixing bolt or the like which penetrates the both and is screwed into a support.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; The sound insulation wall according to the present invention is composed of a plurality of pillars 1 built using existing or new planting blocks 3 installed along the road at the boundary between the road 1 and the sidewalk 2 in the city (FIG. 2, FIG. 3) and a sound-insulating panel 2 (FIG. 1) supported between the adjacent columns 1, 1 so as to be installed relatively short. It is implemented as a sound insulation wall. Incidentally, the height of the sound insulation wall shown in FIG. 2 is about 80 cm.

The pillars 4 are installed at intervals substantially equal to the width of the sound insulating panel 5 (about 2000 mm in this embodiment). In the case of this embodiment, a thin steel tube having a thickness of about 75 × 75 mm is used for the column 4, and a base plate 6 horizontally attached to the lower end of the column 4 is a horizontal step of the planting block 3 installed along the sidewalk. It is fixed with a nut 8 to an anchor bolt 7 embedded in the portion (FIG. 3). Further, a vertical mounting plate 10 at the tip of a bracket 9 protruding from the rear side of the lower part of the support 4 is fixed by a hole-in anchor bolt 11 provided on a vertical surface of the planting block 3 (FIG. 3). (Fig. 4), it is built to be strong enough to be required as a road protection fence. The planting block 3 is also
It is firmly fixed to the road base. However, in a place where the planting block 3 is not provided, the column 4 can be directly embedded in a road base and fixed and built as in the conventional construction (the invention of claim 1).

Next, the sound insulation panel 5 has a thickness of 1.6 to 2.0 mm.
A sound absorbing material 12 is provided in a cavity closed by a roadside front plate 5a and a sidewalk side rear plate 5b formed by thin plates of about the same size, and end plates 5c and 5d connecting the upper and lower ends of the front plate 5a and the rear plate 5b. (See FIG. 6), and a sound absorbing hole 13 is formed in the front plate 5a and the rear plate 5b (FIG. 5). Therefore, the effect of absorbing and reducing the road noise can be expected. Therefore, it is sufficient if the sound absorbing holes 13 are provided at least in the front plate 5a facing the roadway 1. The end plate 5c at the upper end of the sound insulation panel 5 is formed in a semicircular shape for the purpose of design tenderness and elegance.

On one side of the sound insulation panel 5, a recess 14 having a width and depth capable of accommodating the support column 4 is formed. On the other side, the front plate 5a and the rear plate 5
A decorative connecting piece 15 forming a receiving hole 15a having a width that is in contact with the outer surface of the concave portion 14 is provided so as to be substantially flush with the b (see FIGS. 5, 7, and 8). . Both the concave portion 14 and the decorative connecting piece 15 serve as a means for attaching the sound insulation panel 5 to the column 4 while also blocking the column 4. As shown in FIG. 8, the two sound insulation panels 5, 5 located on both sides of the support 4 are housed so that the support 4 is sandwiched between the concave portions 14 on the side surfaces of one of the sound insulation panels 5. Then, the decorative connecting piece 15 on the side surface of the other sound insulation panel 5 is brought into contact with the outside of the concave portion 14,
Locking bolt 1 that penetrates both and is screwed into the support
6 is fixed. Thus, in the case of this sound insulating wall, the strut 4 is not visible at all from the front or the rear, and has an appearance design in which the sound insulating panel 5 simply continues in a series. It will renew the aesthetic feeling compared to the exposed and rugged design,
Offers eco-friendly and stylish scenery that blends into and harmonizes with cityscapes.

In the above configuration, the outer decorative connecting piece 15
As long as is complete, even if the inner concave portion 14 is not formed over the entire length of the sound insulating panel 5 in the height direction, there is no problem in terms of the blindfold effect. In an extreme case, even if the concave portion 14 is partially present only in the portion to be fastened by the above-mentioned fixing bolt 16, the use is sufficient. However, when the concave portion 14 and the decorative connecting piece 15 are formed over the entire length in the height direction of the sound insulating panel 5 as in the present embodiment, a range 20 in which the projection of the bracket 9 of the column is allowed to protrude on both rear sides. , 21 are cut as small as possible.

As described above, assuming that the panel mounting means is used, not only the columns 4 but also the recesses 1 of the sound insulation panel.
4. A bolt hole 4 is provided at a common position of each of the decorative connecting pieces 15.
a and 17 and 18 are provided. A nut 19 is fixed to the back side of the bolt hole 4a of the support column 4.
Further, the bolt hole 17 of the concave portion 14 is formed as a long hole to facilitate alignment.

With the above configuration, the sound insulating panel 5 is connected to the support 4
A method of attaching the sound insulation panels 5 arranged on both sides of the support column 4 is vertically lowered in such a manner that the sound insulation panels 5 are sandwiched by the concave portions 14 or the decorative connecting pieces 15, and the fixing bolts 1 are inserted into the corresponding bolt holes.
6 can be performed only by screwing. No extraordinarily difficult technology is required for the work, and installation can be performed easily and efficiently.

In the case where the sound insulation wall is installed as a side-by-side type with the planting block 3 as in the above-described embodiment, a person who crosses the sidewalk 2 can use the natural green of the plant 22 planted in the planting block 3. The atmosphere brought by can be expected to have a positive effect on the beauty of the sound insulation wall. Finally, FIG. 9 shows a structure in which the terminal portion of the sound insulation wall is accommodated. Again, the terminal cover plate 23 is used in order to cover the existence of the column 4 and enhance the design aesthetics. This terminal cover plate 23
The main body is formed by bending a thin plate similar to that forming the front and rear surfaces of the sound insulation panel 5 into a U-shape, and a U-shaped terminal recess 24 corresponding to the recess 14 is mounted inside the main body. I have. The support pillar 4 is accommodated so as to be sandwiched by the terminal concave portion 24, and the decorative connecting piece 15 of the sound insulation panel 5 on the opposite side is accommodated.
Is abutted and then fastened and fixed by the stop bolt 16 is the same as the above-described panel mounting configuration. Note that, depending on the installation convenience, it is necessary to project a decorative connecting piece on the terminal cover plate 23, but a specific illustration thereof is omitted.

[0014]

[Effects of the present invention] The sound insulation wall in an urban area according to the present invention has the effect of reducing noise such as tire squeak, vehicle engine noise, and aerodynamic noise generated on the roadway side, in addition to the effect of the original protective fence. In addition, it has good aesthetics in harmony with the surrounding scenery of the city area, and the ease of installation and construction is greatly improved, contributing greatly to the implementation in the city area. In addition, the structure can be installed alongside existing or new planting blocks, which are often installed along the sidewalks of the city, so that the application range can be greatly expanded.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a sound insulating wall according to the present invention.

FIG. 2 is a side sectional view showing an embodiment of the sound insulating wall.

FIG. 3 is an enlarged sectional view of a fixing structure at a lower portion of a support.

FIG. 4 is a horizontal sectional view showing a fixing structure of a lower portion of a support.

FIG. 5 is a front view of the sound insulation panel.

FIG. 6 is a vertical sectional view of the sound insulating panel.

FIG. 7 is a perspective view showing the relationship between the sound insulation panel and the support.

FIG. 8 is a horizontal cross-sectional view showing a mounting relationship between the sound insulation panel and the support.

FIG. 9 is a horizontal sectional view showing an end of the sound insulating wall.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Roadway 2 Sidewalk 4 Prop 5 Sound insulation panel 12 Sound absorbing material 13 Sound absorbing hole 14 Depression 15 Makeup connecting piece 15a Receptacle 16 Lock bolt 9 Bracket 20 Cutting area 21 Cutting area

Claims (2)

(57) [Claims] 1. A sound insulation wall installed relatively short along a boundary between a roadway and a sidewalk in an urban area, wherein a plurality of struts built at intervals substantially equal to the length of a sound insulation panel, and a space between adjacent struts The sound insulation panel is a cavity closed by a front plate on the roadway side and a rear plate on the sidewalk formed of a thin plate, and an end plate connecting the upper end and the lower end of the front plate and the rear plate. The sound absorbing material is filled in the portion, at least a sound absorbing hole is formed in the front plate, a concave portion having a width and depth capable of storing the support is formed on one side portion of the sound insulating panel, and the other side portion is formed. A decorative connecting piece forming a receiving hole having a width in contact with the outer surface of the concave portion substantially flush with the front plate and the rear plate is provided so as to protrude over substantially the entire length in the height direction. Sound insulation panel is one of the The same strut is housed in the recess of the surface so as to sandwich the same strut, the decorative connecting piece on the other side is brought into contact with the recess, and is fixed by a fixing bolt or the like which penetrates both and is screwed into the strut. A noise barrier for urban roads. 2. A sound insulation wall which is installed relatively short along a boundary between a roadway and a sidewalk in an urban area, wherein a plurality of pillars are installed at intervals substantially equal to the length of the sound insulation panel, and between adjacent pillars. The strut has a horizontal base plate at its lower end, and a bracket protruding from the lower back side, each anchored to a planting block installed along the sidewalk with anchor bolts. The sound insulation panel is installed in a cavity closed by a roadway-side front plate and a sidewalk-side rear plate formed of thin plates, and an end plate connecting the upper and lower ends of the front and rear plates. Is filled with a sound absorbing material, at least a sound absorbing hole is formed in the front plate, a concave portion having a width and a depth capable of storing the support is formed on one side surface portion of the sound insulating panel, and the other side surface portion is formed. Said A decorative connecting piece that forms a receiving hole having a width that is in contact with the outer surface of the concave portion substantially flush with the face plate and the rear plate is provided so as to protrude over substantially the entire length in the height direction, and at least with respect to the decorative connecting piece on the rear side. Means that the range of the support column that allows the bracket to protrude is cut off, and the sound insulation panels located on both sides of the support column are housed in the recesses on one side so as to sandwich the support column, and the other side is decoratively connected. A sound insulating wall for an urban road, wherein a piece is brought into contact with the concave portion, and is fixed by a fixing bolt or the like that penetrates the both and is screwed into a column.