JP2000154604A - Temporary sound absorption and insulation panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the occurrence of a void easy to occur when sound absorption and insulation panels are arranged in parallel as much as possible without specially increasing dimensional accuracy. SOLUTION: A large number of sound absorption and insulation panels 10 are tightly arranged in a line in every direction, and sound absorbing plates 20 are arranged toward a construction site to construct a soundproof wall, A belt 26 is stuck on at least two outside surfaces adjacent to each other among outside surfaces 15, 15... of one frame 12, for example, the outside surface 15 and top side 16 or the outside surface 15 and bottom side 17. The belt 26 is formed of an elastic material such as hard rubber, felt or the like, so that the adjoining sound absorption and insulation panels 10 and 10 can be easily adhered to each other, Then, the adjoining sound absorption and insulation panels 10 and 10 are approached to each other, and when the belt 26 is held between the frames 12 and 12, the belt 26 is expanded and contracted to make it possible to fill up a void between the frames 12 and 12.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a temporary sound absorbing and insulating panel installed in parallel around a construction site as a soundproofing measure in various construction works and demolition works.

[0002]

2. Description of the Related Art Conventionally, a large number of temporary sound absorbing panels have been installed in parallel in order to prevent noise and dust generated at a construction site or the like from radiating to the surrounding environment. As a panel, lightweight, easy to transport and handle,
Known are those made of aluminum, those made of an aluminum honeycomb material, and those made mainly of a porous inorganic material.

[0003] The above-mentioned sound-absorbing panel is usually attached to a temporary scaffold laid on the outer periphery of a building or the like at a temporary enclosure of a construction site using a fastener using a clamp or the like, and assembled. The mounting and assembling work is complicated and requires a lot of work in consideration of accuracy. Further, when attaching the sound absorbing and insulating panels, it is required that adjacent sound absorbing and insulating panels be brought into close contact with each other as much as possible so that no gap is provided between the sound absorbing and insulating panels. However, in order to fix the panels closely together, it is necessary to increase the dimensional accuracy of the panels. In addition, the mounting structure is inevitably complicated, and the cost is increased.
The disassembly work becomes complicated.

[0004]

SUMMARY OF THE INVENTION According to the present invention, the generation of a gap which is likely to occur when sound absorbing and insulating panels are installed in parallel is reduced without increasing the dimensional accuracy of the panel, and the mounting structure of the panel is complicated. A temporary sound absorbing and insulating panel that can be prevented as much as possible without providing a temporary sound absorbing and insulating panel that can be easily assembled and disassembled when a sound insulating wall is constructed with the sound absorbing and insulating panel. It is intended to do so.

[0005]

SUMMARY OF THE INVENTION A temporary sound absorbing and insulating panel according to the present invention is a box type frame having a sound absorbing plate mainly made of an inorganic porous sound absorbing material provided with an air layer on its back surface and an open front surface. The elastic belt is stuck to two adjacent outer surfaces of the frame.

The temporary sound-absorbing and sound-insulating panel has an angle-shaped mounting bracket on the front upper part of the frame, and a horizontal portion of the mounting bracket is provided with a locking pin provided on a column to which the panel is to be mounted. It is preferable that a long hole that can be fitted is provided, and the position of the panel can be adjusted in the major axis direction of the long hole. In addition, the temporary sound absorbing and insulating panel has a connecting pin projecting from a top surface of the frame, and a connecting hole that can be engaged with a connecting pin projecting from a top surface of a panel disposed adjacently below. It is preferable to be formed on the bottom side surface of the frame.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of a temporary sound-absorbing and sound-insulating panel. The panel 10 has a box-shaped outer shape and a sound-absorbing plate 20 disposed on the front side in a steel frame 12 having an open front 13. It was done. Accordingly, as shown in FIG. 2 which is a partial horizontal cross-sectional view of the sound absorbing and insulating panel, the sound absorbing plate 20 is protected against external impact by the side surface 15 and the back surface 14 of the frame 12. As the material of the frame 12, a metal plate such as steel, aluminum, or stainless steel is used in order to impart mechanical strength and impact resistance necessary for transporting and mounting the sound absorbing and insulating panel 10 and to facilitate processing. be able to.

The sound absorbing plate 20 has a structure in which sound is easily absorbed by using an inorganic porous sound absorbing material in which voids are continuously formed inside. As such a sound absorbing material, it is preferable to use inorganic particulate matter as a main raw material. As the inorganic particles, expanded particles of natural stones such as obsidian, pearlite, antifossil, and shirasu, or expanded particles of glass or various ceramics are preferable, and these are used alone or in combination. The particle size of the inorganic particulate matter is preferably about 0.1 to 2 mm.

It is desirable to mix the filler into the sound absorbing material to reinforce the strength of the sound absorbing plate 20. As the filler, chopped strand, mat, or net-like fibrous materials are preferable, and glass fibers, rock wool, inorganic fibrous materials such as carbon fibers, and organic synthetic fibrous materials such as vinylon and polyester. Can be used. In addition, a prepreg formed by impregnating a fibrous material with a thermosetting resin such as a phenol resin, a polyester resin, an epoxy resin, or a melamine resin, and curing the fiber partially can also be used. The portion to be reinforced with the filler may be in any position near or inside the surface of the sound absorbing plate 20, or may have any structure of a single layer, two or more layers.

In the sound absorbing plate, it is preferable that the inorganic granular material and a fibrous filler added as necessary are molded and cured with a binder. As a binder,
Either organic or inorganic binders can be used, but in the case of producing a sound absorbing material by adhering the inorganic particles in a spotted manner, a heat curing temperature in the range of 80 to 200 ° C. It is preferable to use a binder of a conductive resin.

Examples of such a synthetic resin include a phenol resin, an epoxy resin, a melamine resin, a urea resin and a lignin resin, and a phenol resin is particularly preferred. In the case of a phenol resin, the mixing ratio with respect to the inorganic particulate matter is 1.5 to 25% by weight, particularly 5.0
-15% by weight is preferred. If the content is less than 1.5% by weight, the granular material cannot be firmly bonded to each other or the granular material and the filler, and the strength of the sound absorbing material decreases. On the other hand, if it exceeds 25% by weight, voids between the granular materials are filled, and a porous structure suitable for a sound absorbing material cannot be formed.

In order to manufacture the sound absorbing plate 20, inorganic particulate matter,
The filler and the binder may be simply mixed, or the surface of the inorganic particulate matter may be coated in advance with a binder, and then the filler and a binder to be added as necessary may be mixed. Next, the mixture or the granular material is put in a mold or the like, and if necessary, a lubricant is mixed, and the mixture is heated and pressed to be formed by a dry manufacturing method. Of course, it may be manufactured by a wet manufacturing method.

The porosity of the sound absorbing material thus obtained is 5 to 75%, preferably about 10 to 50%, and the porosity is determined by the types and blending ratios of the inorganic particulate matter, the filler and the binder, Alternatively, it can be adjusted by appropriately selecting a manufacturing method such as pressing pressure and temperature conditions.

In FIG. 2, reference numeral 22 denotes a spacer which also serves as a reinforcing member for the frame 12, and a square pipe made of steel is used. The spacers 22 are installed on the periphery of the frame 12 and are arranged vertically and horizontally at appropriate intervals in the frame 12. By providing the spacer 22,
An air layer 24 is formed on the back surface of the sound absorbing plate 20. Air space 2
By setting the thickness of the sound absorbing panel 4 to about 1.5 to 5 times the thickness of the sound absorbing plate 20, the sound absorbing performance of the sound absorbing and insulating panel 10 can be improved.

The rear surface 14 of the frame 12 constituting the sound absorbing and insulating panel 10 functions as a sound insulating plate. Further, in the present embodiment, the sound absorbing and insulating panel 10 having a single sound absorbing plate 20 has been described. However, when soundproofing is important, a plurality of sound absorbing plates 20 may be installed in the frame 12 as necessary.
An air layer 24 may be formed between the sound absorbing plates 20, 20 and on the back surface of the rearmost sound absorbing plate 20.

The outer surfaces 15, 15 of one frame 12
At least, the belt 26 is attached to at least two adjacent outer surfaces, for example, the outer surface 15 and the top surface 16 or the outer surface 15 and the bottom surface 17. The material of the belt 26 is an elastic material such as hard rubber or felt so that the adjacent sound absorbing and insulating panels 10 and 10 can easily adhere to each other. The width of the belt 26 is about 1 to 10 cm, and the thickness is about 0.3 to 1 cm, depending on the material of the belt 26 and the like. By bringing adjacent sound absorbing and insulating panels 10 and 10 closer together,
If the belt 26 is sandwiched between the frames 12, 12, the belt 26 can expand and contract to fill the gap between the frames 12, 12.

Next, the assembly of the soundproof wall using the temporary sound absorbing and insulating panel 10 of the present invention will be described. The soundproof wall is formed by arranging a number of sound absorbing and insulating panels 10 vertically and horizontally without gaps.
It is constructed by setting the sound source to the construction site that is the sound source. In this embodiment, a single pipe 3 as shown in FIG.
It is assumed that a plurality of zeros are installed around the construction site, and a case where the temporary sound absorbing and insulating panel 10 is attached along the single pipe 30 will be described.

At a predetermined height of the single pipe 30, a clamp 32 is fastened with a clamp screw 34, and the clamp 32 is provided with an L-shaped locking pin 36. On the other hand, an L-shaped mounting bracket 40 is fixed to the upper part of the front surface 13 of the frame 12 at two places, and a long hole 42 is formed in a horizontal portion 41 of the mounting bracket 40. By making the long diameter direction of the long hole 42 parallel to the sound absorbing and insulating panel 10, when the long hole 42 is hooked on the locking pin 36, the locking pin 36 can move in the long hole 42 in the long diameter direction. The position of the sound absorbing and insulating panel 10 can be adjusted in the left-right direction (in FIG. 1, the longitudinal direction of the sound absorbing and insulating panel 10).

Two connecting pins 44 project from the top side surface 16 of the frame 12 near both ends. In addition, a connection hole 46 is formed in the bottom side surface 17 of the frame 12 at a position corresponding to the connection pin 44, so that the connection pin 44 of the sound absorption and insulation panel 10 disposed below and adjacent to the connection hole 44 is provided. By fitting the ten connection holes 46, the sound absorbing and insulating panel 10 can be easily and quickly attached.

As described above, the vertical direction of the sound absorbing and insulating panel 10 is connected by the connecting pin 44 and the connecting hole 46,
As shown in FIG. 2, the right and left direction of the sound absorbing and insulating panel 10 can be connected via the dowel pins 28 so that the adjacent sound absorbing and insulating panel 10 does not shift.
The gap between them is reliably closed by the belt 26.

[0022]

According to the first aspect of the present invention, since the elastic belt is attached to the two outer side surfaces adjacent to the frame which is the outer shape of the sound absorbing and insulating panel, no special attaching and assembling work is required. In addition, the gap between the panels installed in parallel can be closed. For this reason, a soundproof wall excellent in measures against noise and dust can be constructed.

According to the second aspect of the present invention, the soundproof wall can be easily constructed from the temporary sound absorbing and insulating panel by hooking the angle-shaped mounting bracket fixed to the sound absorbing and insulating panel to the locking pin. The effect is excellent.
Also, the mounting structure of the panel is extremely simple. Claim 3
According to the invention described above, the sound absorbing and insulating panel can be mounted more easily and quickly by fitting the connecting pin and the connecting hole provided on the sound absorbing and insulating panel.

[Brief description of the drawings]

FIG. 1 is a perspective view of a temporary sound absorbing and insulating panel of the present invention.

FIG. 2 is a partial horizontal sectional view of the sound absorbing and insulating panel.

[Explanation of symbols]

 REFERENCE SIGNS LIST 10 Temporary sound absorbing and insulating panel 12 Frame made of steel plate 15 Side surface of frame 16 Top surface of frame 17 Bottom surface of frame 20 Sound absorbing plate 24 Air layer 26 Belt 30 Single pipe as support 36 Locking pin 40 Mounting bracket 42 Slot 44 Connecting pin 46 Connecting hole

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁷ Identification symbol FI Theme court ゛ (Reference) G10K 11/16 G10K 11/16 D (72) Inventor Masanao Owaki 2-1 Tsukudocho, Shinjuku-ku, Tokyo Stock (72) Inventor Seiichi Kondo 2-1 Tsukudocho, Shinjuku-ku, Tokyo, Japan Inventor Ryuichi Mori Ryuichi Mori 2-1 Tsukudocho, Shinjuku-ku, Tokyo Kumagaya, Inc. Gumi Tokyo Head Office (72) Inventor Yoshinori Sano 2-1 Tsukudo-cho, Shinjuku-ku, Tokyo Kumagaya Gumi Tokyo Head Office (72) Inventor Shigehide Sakurai 2-1 Tsukudo-cho, Shinjuku-ku, Tokyo Kumagaya Gumi Tokyo headquarters (72) Inventor Hiroshi Ito 2-1 Tsukudo-cho, Shinjuku-ku, Tokyo Kumagaya Gumi Tokyo headquarters (72) Inventor Toshiyuki Suzuki Kisarazu-shi, Chiba 15-1 Inside Nippon Steel Chemical Co., Ltd. (72) Inventor Yasunori Fukushima 151-1 Shinko, Kisarazu-shi, Chiba Inside Nippon Steel Chemical Co., Ltd. (72) Inventor Yoshiharu Ishikawa Nishibukuro, Yashio, Saitama 983-4 Nisshin Steel Co., Ltd. F-term (reference) 2E001 DF02 FA26 GA11 HB01 HB02 HB03 HB04 HF14 JA07 5D061 AA12 AA16 AA25 AA26 BB21 BB27 BB37 DD06

Claims (3)

[Claims] 1. A sound-absorbing plate made of an inorganic porous sound-absorbing material as a main raw material is provided in a box-shaped frame having an air layer provided on its back surface and an open front surface. Temporary sound absorbing and insulating panel characterized by attaching an elastic belt to the outer surface. 2. An angle-shaped mounting bracket is provided at an upper part of the front of the frame, and a horizontal hole of the mounting bracket is provided with an elongated hole in which a locking pin provided on a column to which the panel is to be mounted can be loosely fitted. 2. The temporary sound absorbing and insulating panel according to claim 1, wherein the panel is provided so that the position of the panel can be adjusted in the major axis direction of the long hole. 3. A connecting pin protruding from a top surface of the frame and a connecting hole protruding from a top surface of a panel disposed adjacently below and having a connecting hole protruding from a bottom surface of the frame. 3. The temporary sound absorbing and insulating panel according to claim 2, wherein the sound absorbing and insulating panel is provided.