JPH09189083A - Variable sound-isolating wall - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sound isolating wall whose height is adjustable according to the situation of the place where noises, etc., are emitted, can be accommodated when outof service, and does not impair the surrounding landscape, etc. SOLUTION: An accommodation recess 10 is furnished at the surface where sound isolating walls are installed upright in an outdoor event place, etc., and in this recess 10, supporting members 20 capable of expanding and contracting in the vertical direction, whose tops are accommodated in the recess, are installed separately at a certain spacing. The sound isolating walls 30 are of rectangular shape and joined together by a connecting means in the form of bellows in a pantograph structure capable of expanding and contracting in the vertical direction. The tops on the left and right ends of the joined sound isolating panel 30 are attached between the tops of the supporting members 20, and the joined panels 30 are elongated to form a sound isolating wall or folded up in the recess 10 in compliance with the vertical expansion and contraction of the supporting members 20.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound insulation wall provided at an event venue for holding a concert or the like as a soundproof measure against the surroundings.

[0002]

2. Description of the Related Art Conventionally, sound insulation walls have been permanently installed as a soundproof measure against the surroundings at outdoor event venues where concerts and the like are held. The sound insulation wall needs to have a certain height according to the amount of noise to be reduced. Therefore, the height of the sound insulation wall at such an event venue is determined based on the noise amount predicted in advance at the design stage and the like.

[0003]

However, as in the conventional case, the sound insulating wall whose height is set based on the expected noise amount can be permanently installed in a place where concerts and the like are held frequently to some extent. There is no problem if a sound insulation wall is permanently installed in a place where noise is constantly generated to some extent, but in a place where a large amount of sound or noise is generated for a so-called period or time, such as occasional concerts. , Even if a sound insulation wall is permanently installed, no noise is generated. Normally, it only blocks the surrounding scenery, and it is closed to the surroundings, which is not desirable in terms of scenery.
Also, the height of the conventional sound insulation wall cannot be changed basically.
Due to the construction cost, it is not possible to easily construct a high sound insulation wall with a margin, and it is surprisingly difficult to set an appropriate height for the sound insulation wall after predicting the future. Therefore,
The present invention has been proposed in view of the above problems, and provides a sound insulation wall that can be height-adjusted according to the situation of a place where noise or the like occurs, and can be stored when not in use so as not to spoil the surrounding landscape and the like. With the goal.

[0004]

In order to achieve the above object, the invention according to claim 1 of the present application provides a storage recess on a surface on which a sound insulation wall is erected, and the upper end side is stored when the storage recess is stored. A vertically expandable and contractible support member to be housed in the recess is provided at a predetermined interval, and upper and lower ends of the sound insulation panel connected vertically by bellows-like connecting means are attached between the upper ends of the support members. With the above structure, the sound insulation panels connected to each other can be expanded or contracted in the vertical direction or expanded or contracted in accordance with the vertical expansion or contraction of the support member. By adjusting the height and extending it, it is possible to form a sound insulation wall having an appropriate height according to the amount of noise. Further, since the support member is formed such that the upper end thereof is stored in the storage recess when it is stored, the sound insulation panel connected to the support member is also stored in the storage recess in a folded state.

Further, the invention according to claim 2 is the variable sound insulation wall according to the invention according to claim 1, wherein a plurality of bellows-like connecting means for connecting the sound insulation panels in the vertical direction are arranged in parallel in the longitudinal direction. A plurality of rectangular sound insulation panels were connected so that their long sides could be bent so that a pantograph structure could be formed in the vertical direction. According to a third aspect of the present invention, in the variable sound insulation wall according to the first aspect of the invention, the bellows-like connecting means for connecting the sound insulation panel in the vertical direction can be vertically expanded and contracted to the upper end side of each support member. An upper end side of the pantograph structural member is attached, and a sound insulation panel is provided so as to be connected between the links of the pantograph structural member so as to be connected. With such a configuration, the pantograph mechanism is incorporated in the bellows-like connecting structure of the sound insulation panel, and the sound insulation panel connected can be freely expanded and contracted in the vertical direction.

Further, the invention according to claim 4 is the invention according to claim 1, 2 or 3, wherein the sound insulation panel is removably connected. By making the sound insulation panels connectable in a detachable manner and replaceable, panels with various acoustic effects can be used for the sound insulation panels to obtain the sound insulation effect as a sound insulation wall, while at the same time various types of space in the space surrounded by the sound insulation wall can be obtained. Can be performed acoustically. For example, using a panel with sound absorbing material on the surface to eliminate reflected sound and create a large space,
Alternatively, you can use a panel with acoustic reflectors to create a live space where the sound is intricate. Furthermore, by incorporating the pantograph structure into the structure of the sound insulation wall, the wall surface of the sound insulation wall can be formed into a corrugated shape, and the bounce and absorption of the sound in the internal space surrounded by the sound insulation wall can be effectively performed by the flat wall surface. It

According to a fifth aspect of the present invention, the storage recess is formed as an underground storage recess on the ground where the sound insulation wall is erected in the first, second, third or fourth invention. By providing the storage recess in the ground, the sound insulation wall can be usually stored in the ground so that the surrounding landscape is not blocked by the permanent sound insulation wall. Only when a temporary outdoor concert is needed,
It is possible to set up a sound insulation wall having a height corresponding to the volume of sound insulation, etc., and it is not necessary to always install the sound insulation wall.

[0008]

Embodiments of the present invention will be described below with reference to the drawings. The variable sound insulation wall A of the present invention can be installed indoors or outdoors. For example, install it in an outdoor plaza so that temporary outdoor concerts can be held, or install it in a large indoor space that can be used for various events, etc. and use part of the venue as a temporary performance stage etc. You can also In this embodiment, the variable sound insulation wall A is placed outdoors.
The case where the equipment is installed will be described. As shown in FIG. 1, the storage recess 10 is formed as an underground storage recess on the ground GL where the sound insulation wall is erected. When the variable sound insulation wall A is installed indoors, the storage recess 10 may be formed under the floor.

The storage recess 10 is formed in a substantially rectangular box-shaped recess having a size that allows the variable sound insulation wall A to be folded and stored. Further, in the storage recess 10,
A separate lid (not shown) is provided, and after the variable sound insulation wall A is folded and stored, the opening 11 at the top of the storage recess 10 is provided.
However, it is designed to be blocked so as not to interfere with traffic. A support member 20 that is vertically expandable and contractible is provided at a bottom portion 12 inside the storage recess 10 so as to be separated by a predetermined distance. In the present embodiment, the support member 20 is formed in a single rod shape, and the lower end side of the support member 20 passes through the bottom portion 12 in the storage recess 10 and is inserted deeply into and into the ground. The height of the variable sound insulation wall A can be adjusted by pulling out the supporting member 20 from the inside of the ground to an appropriate length.

For example, below the bottom 12 of the storage recess 10,
A vertical expansion / contraction means (not shown) such as a power unit using a motor or a hydraulic unit is provided in advance to support the support member 2
It may be configured so that 0 can be raised or lowered. When a power unit using a motor is used, the rod-shaped portion of the support member 20 may be configured so that it can be vertically expanded and contracted by a meshing type that can be locked at an appropriate position. Alternatively, it may be configured such that the vertical movement can be finely adjusted by a hydraulic system. By pulling out the support member 20 upward by such means and locking it at a desired height, the height of the support member 20 can be fixed to the variable sound insulation wall A at a required height. When the variable sound insulation wall A has a large scale, the support member 2 is formed by using the power unit or the hydraulic unit as described above.
It is only necessary to secure the vertical expansion / contraction means of 0, and in the case of a small scale, it may be constructed so that it can be manually inserted / removed as follows.

In the above embodiment, the support member 20 is formed in the shape of a single rod. However, as shown in FIG. 2, a pipe having a large diameter and a small diameter can be inserted into a double cylindrical shape so as to be vertically expandable and contractible. I do not care. In FIG. 2, the sound insulation panel 30 is shown so that it can be easily seen.
Etc. are omitted. The lower end side of the large-diameter outer tube 21 passes through the bottom portion 12 of the storage recess 10 and is deeply buried in the ground in the vertical direction. The upper end side is exposed to a little lower than the surface of the opening 11 of the storage recess 10, and a bolt insertion hole is bored in the pipe wall in the diameter direction. Further, the inner pipe 22 is the outer pipe 2
1 is freely inserted and removed. The inner wall of the inner pipe 22 is provided with a plurality of bolt insertion holes in the diametrical direction at predetermined intervals along the length of the pipe. If the bolt insertion hole of the inner pipe 22 is appropriately selected, the bolt insertion hole of the outer pipe 21 is made to coincide, and the bolt is inserted into the outer pipe 21 and the inner pipe 22 and fixed with the nut, the desired drawing length is obtained. The position of the inner pipe 22 can be fixed.

On the other hand, the sound insulation panel 30 of this embodiment is formed of a sound insulation material into a rectangular flat plate shape. A sound absorbing material, a sound reflecting material, or the like may be attached to the flat surface of the sound insulation panel 30. The sound insulation panel 30, as shown in FIGS.
It is vertically connected by a bellows-like connecting means. In the present embodiment, a means for connecting the sound insulation panel 30 to a pantograph structure is used as the bellows-like connecting means, and the sound insulation panel 30 connected by such means is provided between the support members 20 separated by a predetermined distance. . Both long side portions 31 of the sound insulation panel 30 are rotatably supported by a hinge or the like via a rod-shaped beam member 40, and are connected to a pantograph structure in which substantially rhombic cross sections are vertically connected. .

Further, in this embodiment, when the sound insulation panel 30 is pivotally supported on the beam member 40, the sound insulation panels 30 are pivotally supported so that the intersection angle between the sound insulation panels 30 does not open more than a predetermined angle α. Therefore, even when the sound insulation panels 30 connected to each other are extended upward, the sound insulation wall surfaces are not flat but are formed in a corrugated shape. Basically, it does not matter even if the formed sound insulation wall surface is appropriately flattened without restricting the intersection angle. Moreover, in the present embodiment, the sound insulation panel 30.
Is rotatably supported on the beam member 40 so that the sound insulation panel 30 can be replaced.

Further, in the central portion of the pantograph structure portion (the portion where the sound insulation panel 30 intersects in a substantially X shape), 4
The surface sound insulation panel 30 is rotatably supported by one beam member 40a. The beam member 40a, on which the four sound insulation panels 30 are pivotally supported, has both support members 20 separated by a predetermined distance.
Has been passed between. The beam member 40a is provided so as to be vertically movable along the support member 20 and without being separated from the support member 20. The beam member 40a on the upper end side of the pantograph structure portion is passed between the upper end sides of the support members 20 having the above-mentioned configuration, and in accordance with the vertical expansion and contraction of the support member 20,
A pantograph structure portion formed by connecting the sound insulation panels 30 can be vertically expanded and contracted.

In this way, when a sound insulation wall is required, if the support member 20 is extended upward from the storage recess 10 by an appropriate length, the sound insulation panels 30 connected to each other are vertically moved as shown in FIG. 3 (a). A sound insulation wall can be erected by extending to. Also,
When the upper end of the support member 20 is lowered so as to be housed in the storage recess 10, as shown in FIG. 3B, the sound insulation panels 30 forming the sound insulation walls are folded and stored. Further, in the present embodiment, the sound insulation panel 30 includes the beam member 40,
Since it is detachably attached to 40a, the sound insulation panel 3
By appropriately replacing 0 with, for example, a sound absorbing material or a sound reflecting material attached on a flat plate surface, various sound effects in a space surrounded by a sound insulation wall can be achieved. Further, in the above-described embodiment, FIG.
As shown in FIG. 5, an auxiliary support member 20a having the same configuration as the support member 20 is provided so that the sound insulation panel 30 does not become loose or distorted in the middle in the longitudinal direction. The auxiliary support member 20a is not necessary if such distortion is not a concern.

In the above-described embodiment, the sound insulation panel 30 is connected in a pantograph structure, but the storage recess 10 is formed.
A configuration is also conceivable in which a pantograph structural member 50 is provided on each of the support members 20 provided inside, and the sound insulation panel 30 is provided between the pantograph structural members 50.
For example, as shown in FIG. 4, pantograph structural member 50
Is formed by assembling equal-length links 60 into a pantograph structure that can be expanded and contracted vertically by pin connection such as pin pivotal attachment. The upper end side of the pantograph structural member 50 is attached to the upper end side of the support member 20 having the above configuration. By expanding and contracting the support member 20 in the vertical direction, the pantograph structural member 50 can be appropriately stretched or folded.

Further, the link 6 of the pantograph structural member 50 attached to the support member 20 provided at a predetermined interval.
The outer ends of 0 are connected by a beam member 70. Each of the pantograph structural members 50 of the support member 20 that is provided separated by a predetermined distance can be similarly expanded and contracted in the vertical direction. Pantograph structural member 5 having such a configuration
The sound insulation panel 30 is provided so as to bridge over the links 60 of 0 (in the cross-sectional view of FIG. 4, the sound insulation panel 30 is hidden by the link 60 and cannot be seen). In the present embodiment, when the sound insulation panel 30 is handed over, the short piece side of the sound insulation panel 30 is detachably attached to the link 60 by bolt / nut connection or the like.

Further, the sound insulation panel 30 is attached to the pantograph structural member 50 by mounting it on both sides of the pantograph structural member 50 with the support member 20 interposed therebetween, and by interposing an air layer in the middle, the sound insulating effect is further enhanced. Has become. However, the sound insulation panel 30 may be attached only to one side (the side facing the noise generating side). Further, on one side of the support member 20, a wheel or a slide member that can move in the vertical direction on the support member 20 is provided, and each wheel or slide member is provided with a bellows-like connecting means such as a hinge to form a long side. The rectangular sound insulation panel in which the parts are connected may be connected to the corrugated cross section.

[0019]

The sound insulation wall of the present invention does not need to be erected at all times, and can be erected so that its height can be adjusted from the storage recess as needed. Therefore, if the present invention is applied to an outdoor event hall or the like where a large amount of noise such as noise is rarely generated, it can be stored in a storage recess such as in the ground when an event is not performed, so that the surrounding environment is not blocked. Can be kept good. Also, when the event is held,
The height can be adjusted appropriately according to the amount of noise generated at the event. Furthermore, since the sound insulation panel can be replaced, by using a sound absorbing surface material, the reflected sound is eliminated and a feeling as if in a wide field is produced, or by using an acoustic reflection material as the surface material. You can create a live space with reflected sound.

[Brief description of the drawings]

FIG. 1 is a partial perspective view of a variable sound insulation wall according to the present embodiment.

FIG. 2 is a cross-sectional view showing another configuration of the support member.

FIG. 3 is a sectional view (a) in a standing state of a variable sound insulation wall according to the present embodiment and a sectional view (b) showing a stored state.

FIG. 4 is a sectional view (a) showing a standing state of a variable sound insulation wall using a pantograph structural member, and a sectional view (b) showing a stored state.

[Explanation of symbols]

 10 Storage recess 20 Supporting member 30 Sound insulation panel 50 Pantograph structural member 60 Link A Variable sound insulation wall

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Masaaki Suga Fujita Co., Ltd. 4-6-15 Sendagaya, Shibuya-ku, Tokyo

Claims (5)

[Claims] 1. A storage recess is provided on a surface on which a sound insulation wall is erected,
A sound insulating panel is provided in which a vertically expandable support member whose upper end is housed in the storage recess when stored in the storage recess is separated by a predetermined distance, and is vertically connected by bellows-like connecting means between the upper ends of the support members. A variable sound insulation wall, which is equipped with the upper ends of the left and right ends of the. 2. The bellows-like connecting means for connecting the sound insulation panels in the vertical direction is composed of a plurality of rectangular sound insulation panels whose longitudinal directions are aligned in parallel with each other so that their long sides are bendable. The variable sound insulation wall according to claim 1, wherein the variable sound insulation wall is a unit that is connected so as to form a pantograph structure in the vertical direction. 3. The bellows-like connecting means for connecting the sound insulation panel in the vertical direction is to attach the upper end side of the vertically expandable and contractible pantograph structural member to the upper end side of each supporting member, and to connect the links of the pantograph structural member. The variable sound insulation wall according to claim 1, wherein the sound insulation panel is provided so as to extend over the sound insulation panel and is connected to the sound insulation panel. 4. The variable sound insulation wall according to claim 1, 2 or 3, wherein the sound insulation panels are detachably connected to each other. 5. The variable sound insulation wall according to claim 1, wherein the storage recess is formed as an underground storage recess on the ground on which the sound insulation wall is erected.