JPH0663285B2 - Soundproof and antivibration building materials and soundproof and antivibration rooms - Google Patents

Description

The present invention relates to a building material and a soundproofing / vibration chamber that are easy to construct and have excellent soundproofing / vibration damping properties.

2. Description of the Related Art Due to the need to prevent noise pollution and improve acoustic effects, there is an increasing need for soundproofing and vibration-proofing of building spaces.

In reinforced concrete construction, increasing the thickness of floors, walls, etc. increases the soundproofing effect, but causes problems such as an increase in construction costs and a reduction in effective space.

There is also a method of installing a soundproof sheet made of inorganic fiber such as glass fiber between the floor and the wall, but the soundproofing effect is not sufficient. It seems that this is because the sound is propagated through the part where the floor plate or the wall plate ends are in direct contact with the joists or columns.

As an anti-vibration measure for equipment that generates noise or vibration, a shape integrally molded so that a combination of cylindrical protrusions having different diameters and heights is continuously and repeatedly arranged on at least one surface of the plate-shaped body. Anti-vibration blocks made of elastic material are available on the market, but they are not applied to ordinary houses because it is uneconomical and time-consuming to install them all over a large building space.

Problems to be Solved by the Invention There are various types and sizes of noise and vibration, required soundproofing rate and antivibration rate, and effective soundproofing for various noise sources and vibration sources including economical efficiency. Vibration proof design requires specialized knowledge and experience, and the effect will be drastically reduced due to carelessness during construction and omission.

INDUSTRIAL APPLICABILITY The present invention has soundproofing / vibrationproofing performance sufficient for constructing a building space such as a studio that has extremely strict performance requirements regarding soundproofing / vibration prevention, and a worker without special knowledge and experience can easily and easily install it in a general house. It is an object of the present invention to provide a soundproofing / vibration-proofing building material having a simple construction that can be surely constructed, and a soundproofing / vibration-proofing room using the building material.

Structure of the Invention Means for Solving Problems The first invention relates to a soundproofing / vibration-proofing building material, in which a plate-shaped main body having a small diameter has a high height and a large diameter has a large height. A combination of cylindrical projections having different low diameters and heights is continuously and repeatedly arranged, and the position on the opposite surface corresponding to the position where the cylindrical projection having the maximum diameter is present on one surface is on that surface. Just as there is a cylindrical protrusion having the smallest diameter, and at the opposite surface position corresponding to the position where the cylindrical protrusion having the smallest diameter exists on one surface, there exists the cylindrical protrusion having the largest diameter on that surface. A soundproof / vibration block made of an elastic material having an integrally molded shape is fixed to one side of a wooden board at a distance, and a sheet-shaped inorganic fiber is fixed to the surface of the block. Except for those having a bonded structure on one surface.

This will be described in detail with reference to the accompanying drawings. FIG. 3 shows a soundproof / vibration block 1 which is an important component in the present invention.
FIG. 4 is a side view of the plate-shaped main body 11 made of an elastic material and has a high height for a small diameter and a high height for a large diameter. Cylindrical protrusions 12A, 12B, 12C, 1 having a diameter and a height
It has a shape integrally formed so that a combination of 2D (provisionally surrounded by a dotted line in FIG. 3) is continuously and repeatedly arranged.

The types of the cylindrical protrusions having different diameters and heights are such that the diameter increases from 12A, which has the largest diameter, to 12B, 12C, and 12D, and 12A has the lowest height.
The height increases in the order of B, 12C, and 12D. In the figure, the case where these four types are combined is shown, but there are more types, and for example, six types of combinations may be used.

It is preferable that the diameter of these columnar projections is changed within the range of 3 mm to 10 mm at the minimum and the height thereof is changed within the range of 1 mm to 5 mm at the minimum.

When providing a combination of cylindrical projections on both sides of the plate-shaped body, as can be understood from FIG. 4, the position of the opposite surface corresponding to the position where the cylindrical projection having the maximum diameter exists on one surface. Has a cylindrical projection having the smallest diameter, and a cylindrical projection having the largest diameter exists at the position on the opposite surface corresponding to the position where the cylindrical projection having the smallest diameter exists on one surface. As described above, the arranged one is used.

The number of combinations of columnar protrusions having different diameters and heights (those tentatively surrounded by a dotted line in FIG. 3) that are continuously and repeatedly arranged in one block is about 4 to 12 sets. It is appropriate to do. FIG. 3 shows the case of 6 sets.

Natural rubber or synthetic rubber is used as the type of elastic material constituting the soundproof / vibration-proof block.

A suitable thickness of the plate-shaped main body 11 is about 10 to 15 mm.

As shown in FIG. 1 as a plan view and in FIG. 2 as a side view thereof, the soundproofing / vibration-proofing building material according to the present invention has the soundproofing / vibration block 1 on one side (upper surface in the figure) of a wooden board 2. The sheet-like inorganic fiber 3 is fixed to the surface of the sheet at intervals, and the sheet-like inorganic fiber 3 is attached to one side of the surface except the portion where the block is fixed.

As the wood board 2, it is convenient to use a plywood, especially a standard length of 3 or 6 boards.

Soundproof and anti-vibration blocks to be fixed on the wooden board are required at least at the four corners of the wooden board, and the distance between them is usually about 90 cm to 3
0 cm (core-core). When the soundproofing / vibration-proofing building material of the present invention is used as a flooring material and a heavy object is to be installed thereon, this interval may be shortened according to the weight load.

As the sheet-like inorganic fiber 3, a glass wool sheet, a slag wool sheet or the like, which is generally commercially available as a soundproof material or a heat insulating material, can be used.

In order to stick the sheet-like inorganic fiber 3 on one surface except the part where the soundproof / vibration block 1 is fixed, cut out the part corresponding to the installation position of the soundproof / vibration block in advance, and Can be attached by covering it on one side of the wooden board 2 with a space therebetween and fixing the soundproof / vibration block.

Further, the soundproofing / vibrationproofing building material of the present invention may be provided with a coating layer made of sheet aluminum on the structure shown in FIGS. 1 and 2 for the purpose of further providing an electromagnetic wave shielding effect. As the sheet-shaped aluminum, an aluminum foil, an aluminum vapor-deposited plastic film, or the like can be used. Some glass wool sheets that are commercially available as heat insulating materials have a cover made of an aluminum vapor-deposited plastic film, so that when they are used, they will automatically have a coating layer made of sheet aluminum.

As a construction method of the soundproofing / vibration-proofing building material according to the present invention, the soundproofing / vibration-proofing block is not fixed, as shown in FIG. Install it in the upside down state.

FIG. 5 shows the soundproofing of the present invention on the concrete pouring floor surface 4.
FIG. 6 shows a case where the vibration-proof building material is installed, and FIG. 6 shows a case where the sound-proof / vibration-proof building material of the present invention is installed on the joist 5.

Normally, only one layer of this soundproofing / vibration-proof building material needs to be installed, but if noise or vibration is severe, or if a high degree of soundproofing / vibration-proofing is required, this soundproofing / vibration-proof building material It may be installed in a three-tiered stack.

This soundproofing / vibration-proofing building material is applied only on the floor surface, and common soundproofing material such as inorganic fiber sheet such as glass wool is applied on the wall surface and the ceiling. If you want to further improve the soundproofing / vibration-proofing efficiency, you can construct floors and walls with this soundproofing / vibration-proofing building material, and use ceiling beams from the beam material through the soundproofing / vibration block. By suspending and constructing the structure, it is possible to almost completely shield sound and vibration.

That is, the second aspect of the present invention is that a combination of cylindrical protrusions having different diameters and heights is continuously and repeatedly arranged on both sides of the plate-shaped main body with a small diameter having a high height and a large diameter having a low height. And at the position of the opposite surface corresponding to the position where the cylindrical protrusion having the maximum diameter exists on one surface, the cylindrical protrusion having the minimum diameter on that surface exists, and the minimum diameter on one surface. There is a soundproofing / vibration block made of an elastic material having a shape integrally molded so that there is a cylindrical projection having the maximum diameter on that surface at the position on the opposite surface corresponding to the position where the cylindrical projection having , A floor made of a soundproofing / vibration building material that has a structure in which it is fixed on one side of a wooden board with a space, and sheet-like inorganic fibers are attached to one surface of the wooden board except for the portion where the blocks are fixed. And the wall Form, and a noise and vibration damping chamber having a structure assembled hung from the beam member via said soundproofing and isolation block ceiling plate.

This will be described with reference to FIG. 7. The soundproofing of the present invention is applied to the floor and walls of the base structure made of joist 5, pillar 6 and beam 7.
A building material for vibration proofing is applied, and the ceiling plate 9 (in a state of being suspended from the hanging metal fitting 10) is pierced with the beam material 7 via the soundproofing / vibrating block 1 described above.
Hang from.

An example of the structure of the suspended portion is described in detail in FIG. 8. The soundproof / vibration block 1 is installed on the bottom of a hollow box 8 having a hole 81 at the bottom. The hook 82 is attached downward at the center of the block 1, and the hanging metal fitting 10 with the ceiling plate 9 suspended is attached to the lower end of the hook 82.

On the other hand, the box 8 itself is suspended from the beam member 7 by the upper hook 83. In this way, the ceiling plate can be hung from the beam through the soundproof / vibration-proof block.

An appropriate sound absorbing panel may be used as the ceiling plate.

In such a soundproof / vibration-proof room, even when there is a strong sound source inside the room to prevent it from leaking to the outside, on the contrary, when it is desired to completely shield the outside sound and vibration and keep the room quiet. Is also excellent.

Action Vibration is propagated mainly by contact between solids, and sound is propagated through air and solids.

When a floor, wall, or ceiling is constructed using the soundproofing / vibration-proofing building material of the present invention, the wooden board is in solid contact with the outer structural material via the soundproofing / vibration block fixed on one side with a space. You are doing it.

On both sides of this soundproofing / anti-vibration block, a combination of cylindrical projections having different diameters and heights is arranged continuously and repeatedly with a small diameter having a high height and a large diameter having a low height. In addition, a cylindrical projection having the smallest diameter on the surface is present at the position on the opposite surface corresponding to the position where the cylindrical projection having the largest diameter is present on one surface, and the smallest diameter is provided on the one surface. At the position of the opposite surface corresponding to the position where the columnar protrusion is present, the columnar protrusion having the maximum diameter on that face is arranged.

Microscopically, therefore, the wooden board is in solid contact with the outer structural material only through the cylindrical projections of the soundproof / vibration-proof block.

In the case where the soundproofing / vibration-proofing building material of the present invention is not loaded, for example, when it is used as a wall material, the propagation path of the sound and vibration by the solid contact portion is "the highest cylindrical protrusion on one side-the plate-shaped body-the opposite side". Since the solid contact portion is very small, the sound and vibration energy propagated by the solid contact is small, and both the cylindrical projection and the plate-shaped body are made of a disconnectable material.
Sound and vibration energy that is slightly propagated from the portion in contact with the solid is also absorbed during this period, and is attenuated until reaching the opposite side.

In particular, the soundproofing / vibration-proof block corresponds to the position where the cylindrical projection having the maximum diameter is present on one surface of the plate-shaped body, and the cylindrical projection having the minimum diameter is present on the opposite surface. Since the cylindrical projection having the maximum diameter is present at the position on the opposite surface corresponding to the position where the cylindrical projection having the minimum diameter is present on the surface of “the highest cylindrical projection on one side- Since the path of "plate-shaped body-highest cylindrical protrusion on the opposite side" becomes a long slant, the sound and vibration damping effect is further enhanced.

Further, since the sheet-shaped inorganic fibers are present in the portion where the vibration-proof block is not fixed, it is possible to prevent the sound from being propagated through the air.

When there is a sound source such as a piano in the room, the energy of the sound propagated to the outside through the floor is large, but the soundproofing / vibration building material of the present invention is used as a flooring material, and a heavy material such as a piano is used on it. When loaded, the plate is made of an elastic material because it receives the load in order from the highest columnar protrusion and is compressed, and the lower columnar protrusion receives no load or receives little load. The plate-like body is deformed under non-uniform pressure, and a complicated compressive stress distribution is generated inside the plate-like body, which effectively acts to absorb sound and vibration of different wavelengths and directions.

It is free to install any interior material on the floor surface and wall surface of the room where the soundproofing / vibration-proofing building material of the present invention has been applied.

As a method of ventilating a room in which the soundproofing / vibration-proofing building material of the present invention is installed, a ventilation fan with a silencer may be installed to inhale air.

Example 1 4 cm × 6 cm, 1.2 cm thick, made of elastic rubber having the shape shown in FIG.
Diameter 5 mm x Height 2.5 mm, Diameter 6 mm x Height 2 mm, Diameter 7
6 combinations of 4 types of cylindrical projections each having a size of mm x 1.5 mm, each having a minimum diameter at the position on the opposite surface corresponding to the position where the cylindrical projection having the maximum diameter exists on one surface. The protrusions are arranged in the reverse order so that the cylindrical protrusion having the maximum diameter is present at the position on the opposite surface corresponding to the position where the cylindrical protrusion having the minimum diameter is present on one surface. 22mm thick soundproof / anti-vibration block
Approximately 90 cm as shown in Fig. 1 on the 3-6 standard length plywood.
Six pieces were fixed at intervals, and a glass fiber sheet having a thickness of 22 mm was attached to one surface except the portion where the soundproof / vibration-proof block was fixed, to obtain a soundproof / vibration-proof building material.

Example of use 1 or 2 sheets of the building material for soundproofing / vibration damping of Example 1 is installed on the floor surface, and an upright type piano (weight 200Kg + chair and player weight 70Kg) is installed on it, and it is generated by the piano. Absorption rates of sounds at 20 Hz and 80 Hz (do-do) were measured under the floor.

The results are shown in Table 1.

As can be seen from Table 1, 80 Hz sound is
Even if only one building material for vibration isolation is installed, 99% or more of it is absorbed, and less than 1% is propagated to the outside. With respect to the low frequency sound of 20 Hz, 90% or more of the low frequency sound can be absorbed by installing two soundproofing / vibrationproofing building materials of the present invention.

EFFECTS OF THE INVENTION 1 Excellent soundproofing / vibrationproofing effect for flooring and wall materials.

2 A worker who does not have any special knowledge or experience can easily and surely perform the construction.

3 When shutting off noise and vibration sources in the room to the outside, and shutting off the room from outside noise and vibration sources, it is used for construction purposes such as studios, audio rooms, and piano playing rooms, as well as noise levels outside the room.・ It is effective to cut off from vibration sources such as aircraft noise countermeasures, Shinkansen noise / vibration countermeasures, and highway noise / vibration countermeasures.

4 The silent room according to the present invention is suitable as a hospital room, particularly as a psychosomatic treatment room.

[Brief description of drawings]

FIG. 1 is a plan view of a soundproofing / vibration-proofing building material according to the present invention.
Figure is its side view, and Figure 3 is one of the components
Fig. 4 is a plan view of the anti-vibration block, Fig. 4 is a side view of the anti-vibration block seen from the right side, Fig. 5 is a diagram showing the case where soundproofing and anti-vibration building materials are installed on the concrete pouring floor surface, and Fig. 6 is FIG. 7 is a view showing a case where a soundproofing / vibration-proofing building material is installed on the joist 5; FIG. 7 shows a floor and a wall made of the soundproofing / vibration-proofing building material of the present invention, and the ceiling board is the soundproofing / vibration-proofing mentioned above. FIG. 8 is a diagram for explaining a soundproofing / vibration chamber having a structure in which it is suspended from a beam through a block and assembled, and FIG. 8 is a detailed explanatory diagram of the suspended portion.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kiyoyuki Horii 5-8-15-501 Kamiguro, Meguro-ku, Tokyo (72) Inventor Takuma Murata 4-15-20 Ogikubo, Suginami-ku, Tokyo (72) Inventor Hisao Koga 5-15-21-1406, Narita Higashi, Suginami-ku, Tokyo (72) Inventor Takashi Yuasa 4-1-27-105 Takaido Higashi, Suginami-ku, Tokyo (56) Reference JP-A-58-91251 (JP, A) ) Actually open 60-86646 (JP, U) Actually open 57-38513 (JP, Y2)

Claims (3)

[Claims] 1. A combination of cylindrical protrusions having different diameters and heights is continuously and repeatedly arranged on both sides of a plate-shaped main body with a small diameter having a high height and a large diameter having a low height. In addition, a cylindrical projection having the smallest diameter on the surface is present at the position on the opposite surface corresponding to the position where the cylindrical projection having the largest diameter is present on one surface, and the smallest diameter is provided on the one surface. A soundproof / vibration block made of an elastic material that is integrally molded so that there is a cylindrical protrusion having the largest diameter on that surface at the position on the opposite surface corresponding to the position where the cylindrical protrusion exists. A soundproofing / vibration-proofing building material having a structure in which a sheet-like inorganic fiber is fixed to one surface of a plate at intervals, and a sheet-shaped inorganic fiber is adhered to one surface of the plate excluding the portion to which the block is fixed. 2. The soundproofing / vibration building material according to claim 1, which has a coating layer made of sheet-shaped aluminum. 3. A plate-shaped main body having a small diameter on both sides has a high height and a large diameter has a low height on which a combination of cylindrical projections having different diameters and heights is continuously and repeatedly arranged. In addition, a cylindrical projection having the smallest diameter on the surface is present at the position on the opposite surface corresponding to the position where the cylindrical projection having the largest diameter is present on one surface, and the smallest diameter is provided on the one surface. A soundproof / vibration block made of an elastic material that is integrally molded so that there is a cylindrical protrusion having the largest diameter on that surface at the position on the opposite surface corresponding to the position where the cylindrical protrusion exists. Floors and walls with soundproofing / vibration building materials that have a structure in which one side of the plate is fixed at intervals, and sheet-like inorganic fibers are attached to one side of the surface except the part where the block is fixed. Make up And soundproofing and anti oscillating chamber having a ceiling panel was assembled hung from the beam member via said soundproofing and isolation block structure.