JP2001172921A - Opening/closing-type branch-type sound insulation wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an opening/closing-type branch-type sound insulation wall that simplifies construction of a sound insulation wall, reduces space in storage and transportation, and suppresses costs. SOLUTION: In the opening/closing-type branch-type sound insulation wall, a body wall for insulating sound is composed by providing a wall panel 100 between posts 1 where its lower end is buried underground at a specific interval, at the same time the upper side of the post 1 is tilted toward a sound source side, and a sound insulation unit 10 whose end face becomes a V shape when being opened to an inclination part 1A is installed. In the opening/closing-type branch-type sound insulation wall, the sound insulation unit 10 consists of a pair of inclination frames 11 that are tilted for the inclination of the inclination part 1A at the upper portion of the adjacent post 1 and adheres to the inclination part 1A, a lower frame 12 for connecting the inclination frames 11 at a lower end side, first and second branch walls 13 and 14 where each low end is connected to the lower frame 12 so that it can be opened and closed, and a connection member 15 for retaining both the branch walls 13 and 14 at a specific inclination angle when the first and second branch walls 13 and 14 are opened so that they are inclined to the sound source and anti-sound source sides, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an openable / branch type sound insulating wall provided as a measure for preventing noise generated from roads, railways, factories and the like.

[0002]

2. Description of the Related Art In order to enhance the noise reduction effect, it is necessary to increase the height of a sound insulation wall of a straight wall type. When the height of the wall is increased, construction costs are increased, and sunshine, landscape, view, and ventilation are reduced. It became worse, there was a feeling of oppression and radio interference, and there were also problems with strength such as wind resistance and earthquake resistance. Therefore, Japanese Patent Laid-Open No. 8-85 discloses a sound insulation wall in which the height of the wall is suppressed and the noise reduction effect is increased.
No. 921 has been developed. This is the first slope inclined toward the sound source at the upper end of the main body wall extending upward from the ground.
And a second branch wall inclined to the side opposite to the sound source side is provided, and the first and second branch walls are provided with a re-branch wall for re-branching in a direction different from these branch walls. This is called a reindeer type because the branch wall and the re-branch wall have a shape like a reindeer horn when viewed from the side. Those without a re-branch wall are called branch or Y-type sound insulation walls. If the Y-type sound insulation wall is the same height as a straight wall type or a curved type whose upper end is curved toward the sound source side, the sound insulation reduction effect is higher.

[0003]

The Y-type and reindeer-type branch sound insulation walls could improve the noise reduction effect without increasing the height, but the upper branch wall was located opposite to the sound source side. Construction was difficult because of the three-dimensional shape that was open to the side. Further, even when the branch wall portion is mounted on a straight wall later, a large amount of space is required for storage and transportation before the mounting, which is extremely inefficient and costly. Further, it was more difficult to attach the branch wall portion to a portion where the upper portion of the straight wall was inclined toward the sound source.

Accordingly, an object of the present invention is to provide an openable / branch-type sound insulating wall which can simplify the construction of such a sound insulating wall, and can save space and reduce cost during storage and transportation. .

[0005]

In order to achieve the above object, according to the present invention, a wall panel is provided between pillars whose lower ends are buried at a predetermined interval in the ground to form a main body wall for sound insulation. An opening / closing branch-type sound insulating wall in which the upper side of a support is inclined toward the sound source side and a soundproof unit whose end face shape is V-shaped when opened to the inclined portion is installed, and the soundproof unit is located above the adjacent support. A pair of inclined frames that are fixed to the inclined portion by being inclined according to the inclination of the inclined portion, and a lower frame that connects these inclined frames at the lower end side,
First and second branch walls each having a lower end openably and closably attached to the lower frame, and a predetermined inclination when the first and second branch walls are opened so as to incline to the sound source side and the opposite sound source side. And a connecting member for holding both branch walls at an angle.

[0006]

Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows a soundproof unit 10 fixed to an upper inclined portion 1A of a column 1 shown in FIG.
This example is for insulating automobile noise on a road. The soundproofing unit 10 has a pair of inclined frames 11 inclined in accordance with the inclinations of the inclined portions 1A of two adjacent columns 1, and each of these inclined frames 11 is a respective inclined portion of the two columns 1. 1A. The lower ends of a pair of inclined frames 11 are connected by a lower frame 12, and the lower ends of a first branch wall 13 and a second branch wall 14 are rotatably attached to the lower frame 12, , 14 close to the inclined frame 11 side and open away from the inclined frame 11. The first and second branch walls 13 and 14 are connected by a connecting member 15. The connecting member 15 is provided with a pin 16 so that the first portion 15A and the second portion 15B can be rotated.
And can be bent at the position of the pin 16.

A long hole 11A for sliding is formed in the longitudinal direction of the inclined frame 11, and a slider 17 is slidably mounted in the long hole 11A. The slider 17 is attached to the elongated hole 11A by a pin 18, and the pin 18 slides in the elongated hole 11A. The first portion 15A of the connecting member 15 and the slider 17 are
Reference numeral 9 indicates a rotatable connection. One end of the first portion 15A of the connecting member 15 is connected to the first branch wall 1 by a pin 20.
3 is rotatably mounted. Similarly, the connecting member 15
One end of the second portion 15B is rotatably attached to the second branch wall 14 by a pin 21. Further, first and second re-branching walls 22 and 23 are provided inside the first and second branch walls 13 and 14 so as to be substantially orthogonal to the branch walls 13 and 14. The base ends of the first and second re-branch walls 22 and 23 are connected to the first and second branch walls 13 and 14 by pins 22A and 23, respectively.
A rotatably attached by A. Also, the re-branch wall 2
The intermediate portions 2 and 23 are elongated holes 15 formed in the first portion 15A and the second portion 15B constituting the connecting member 15, respectively.
a and 15b are slidably mounted by pins 22B and 23B. In FIG. 1, a sound absorbing material 30 is attached to the first branch wall 13 on the road side, that is, on the sound source side, over the whole. Further, the first re-branch wall 22 and the first branch wall 1
A similar sound absorbing material 30 is also provided at the V-shaped zone formed by the upper end of 3. Second on the anti-sound source side, that is, on the house side
A similar sound absorbing material 30 is provided in the V-shaped zone formed by the branch wall 14 and the second re-branching wall 23, and the sound absorbing material 30 extends from the upper end to the base end of the second branch wall 14. Is not provided. When the upper ends of the first and second branch walls 13 and 14 are tilted toward the inclined frame 11 (when they are closed), the soundproofing unit 10 is connected to the connecting member 1.
5 is bent at a pin 16 connecting the first portion 15A and the second portion 15B, and the slider 17 is a long hole 11A.
And the two re-branching walls 22 and 23 also fall inward along the long holes 15a and 15b. FIG. 5 shows a completely folded state.

FIG. 2 is a side view showing a state in which the soundproofing unit 10 is attached to the inclined portion 1A of the column 1, and the lower end of the column 1 is embedded in the ground. FIG. 3 is a front view of the sound insulating wall as viewed from the left side in FIG. 2, that is, as viewed from the sound source side. A wall panel 100 is provided between pillars 1 buried underground at predetermined intervals to constitute a main body wall for sound insulation.
The horizontal length of the first and second branch walls 13, 14 is formed shorter than the distance between the columns 1, and the adjacent branch walls when the first and second branch walls 13, 14 are opened. 13,1
The joints 3 and the branch walls 14, 14 are connected to each other by a joint sound insulation plate 101 that extends and contracts in the horizontal direction so as to straddle the column 1.

FIGS. 4 and 5 show the soundproof unit 10 when it is opened and when it is closed. FIGS. 4 and 5 show the skeleton before the sound absorbing material 30 is attached.

The joint sound insulating plate 101 is formed of a rubber-made extensible material, and can respond to the difference in the interval between the branch walls 13 and 14. That is, the sound insulation wall is not a straight line but curves in the middle.
Since the interval between them is also apt, the joint sound insulating plate 101 is made to expand and contract in the horizontal direction.

The skeleton of the soundproofing unit 10 can be made of a synthetic resin material in order to reduce the weight. Further, as the sound absorbing material 30, rock wool, glass wool, ceramic, foam concrete, fiber molded article, and the like can be suitably used.

In FIG. 4, the opening and closing angle of the first branch wall 13 is 23 °, and the opening and closing angle of the second branch wall 14 is 67 °.
And The first and second branch walls 13 and 14 are configured to be inclined at the same angle with respect to a vertical line. Further, the length of the first and second branch walls 13 and 14, that is, the length in the vertical direction was about 1350 mm. The length in the horizontal direction was about 3400 mm. Further thickness is 50
mm.

FIG. 6 shows a structure in which the soundproofing unit 10 is attached to a column having an inclined portion 1A at the upper part of the column 1 (reference numeral A), and a case in which the soundproofing unit 10 is mounted to a column having an upper portion of the column 1 not inclined (reference numeral B). 6) is a graph comparing the silencing volume (dB) for each frequency with (). In both experiments, the height was 5 m, the sound source was provided at a position 5 m away from the sound insulation wall, and the microphone was installed at a distance of 10 m from the sound insulation wall on the opposite side of the sound source at a height of 1.2 m.

[0015]

As described above, according to the present invention, since the soundproofing unit provided on the top of the soundproof wall can be opened and closed, storage, transportation and construction are easy. In addition, since the sound insulating wall provided with the soundproofing unit on the top has the upper part of the support pillar inclined to the sound source side, the soundproofing unit further blocks sound propagation from the sound source side to the opposite sound source side. be able to. It is known that the sound insulation wall whose upper part is inclined toward the sound source side has a higher sound insulation effect than the straight wall,
This soundproof unit can be easily attached to such an inclined portion above the soundproof wall. In particular, a slider is slidably attached to an elongated slot for sliding formed in the longitudinal direction of the inclined frame, and one end of a connecting member whose one end is rotatably attached to the slider to the first branch wall.
An intermediate portion of the portion is rotatably mounted, the other end of the first portion is rotatably mounted on the other end of the second portion of the connecting member, and one end of the second portion is rotated on the second branch wall. In the case where the mounting is possible, the upper end sides of the first and second branch walls can be closed during storage and transportation, and when mounting on the inclined portion of the upper part of the column at the site, the inclined frame is used. The construction is simplified because it is fixed to the inclined portion of the support and the upper ends of the first and second branch walls are opened. Further, in a structure in which the soundproof units are connected by a joint soundproof plate, sound propagation from between the soundproof units can be prevented, and the appearance is improved.

[Brief description of the drawings]

FIG. 1 is a side sectional view of a soundproof unit used in the present invention.

FIG. 2 is a side view of the entire sound insulation wall.

FIG. 3 is a front view.

FIG. 4 is an explanatory diagram of an open / closed state of the soundproof unit.

FIG. 5 is a side view showing a state where the soundproof unit is closed.

FIG. 6 is a graph comparing the sound-extinguishing volume for each frequency of the case where the upper part of the main body wall is inclined and the case where the upper part is not inclined.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Prop 1A Inclined part 10 Soundproof unit 11 Inclined frame 12 Lower frame 13 First branch wall 14 Second branch wall 15 Joint member 101 Joint sound insulation plate

Claims (6)

[Claims] 1. A wall panel is provided between pillars whose lower ends are buried underground at predetermined intervals to constitute a main body wall for sound insulation, and the upper side of the pillar is inclined to the sound source side and opened to the inclined portion. An openable / branch-type sound insulation wall provided with a soundproof unit sometimes having a V-shaped end surface, wherein the soundproof unit is tilted in accordance with a slope of an upper slope of an adjacent column and fixed to the slope. A pair of inclined frames, a lower frame connecting these inclined frames at the lower end side, first and second branch walls each having a lower end openably and closably attached to the lower frame, and first and second branches. An openable / closable branch-type sound insulation wall, comprising: a connecting member that holds both branch walls at a predetermined inclination angle when the wall is opened so as to incline to a sound source side and a counter sound source side. 2. A connecting member, wherein a slider is slidably mounted in a sliding long hole formed in a longitudinal direction of the inclined frame, and one end of the connecting member is rotatably mounted on the first branch wall. An intermediate portion of one portion is rotatably mounted, the other end of the first portion is rotatably mounted on the other end of the second portion of the connecting member, and one end of the second portion is connected to the second portion.
The openable / closable sound insulating wall according to claim 1, wherein the sound insulating wall is rotatably attached to the branch wall. 3. A first and second re-branch wall which forms a V-shape with the upper part of the first and second branch walls is provided inside the first and second branch walls. Or the openable / branch-type sound insulating wall according to 2. 4. A base end of each of the first and second re-branching walls is rotatably attached to the first and second branch walls, and an intermediate portion of the re-branching wall is a first member forming a connecting member. The openable / closable branch-type sound insulating wall according to claim 3, wherein a pin that slides in the long hole is attached to the long hole formed in the portion and the second portion. 5. The first and second branch walls are formed such that the horizontal length is shorter than the distance between the columns, and the adjacent branch walls are opened when the first and second branch walls are opened. The openable / closable branch-type sound insulation wall according to any one of claims 1 to 4, wherein the joints are connected by a joint sound insulation plate that extends and contracts in the horizontal direction so as to straddle the support. 6. The apparatus according to claim 1, wherein the angles at which the first and second branch walls are opened are each inclined at the same angle with respect to a vertical line. Opening and closing type sound insulation wall.