JPH0782872A - Sound insulating floor material - Google Patents

Abstract

PURPOSE:To improve interruption of light and heavy impact sound, to improve the efficiency of construction and to prevent deterioration walking feeling. CONSTITUTION:A veneer 2 is stuck to both opening surfaces of a honeycomb material 1, and a part of the honeycomb material 1 is coated with asphalt to form a sound insulating panel B. Thus, if the opening surface of the honeycomb material 1 to which the veneer 2 is made adhere is not coated with asphalt, both members are made adhere to each other firmly to increase the rigidity, so that the effect of absorbing a heavy impact sound, that is, an impact sound in a low-frequency band can be increased. In the case of arranging the sound insulating panel B between floor joists on the floor beam, even if the thickness is increased, the weight is not increased, the rigidity can be heightened, and the effect of absorbing a heavy impact sound can be increased. The light impact sound, that is, the vibration sound in the medium high frequency band can be damped by the vibration control action of asphalt.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soundproof flooring material, and more particularly to a soundproofing flooring material which is excellent in blocking weight and light weight impact noise in a wooden framed house.

[0002]

2. Description of the Related Art In a wooden framed house, a light impact sound caused by dragging a chair or dropping a spoon on the upper floor is not a serious problem when a tatami mat or a carpet is laid. This is a problem with flooring (wooden floor materials), which is increasing because it is not healthy and is easy to clean. In other words, even in a detached house in which only the family lives, floor impact noise has become an issue that needs to be improved nowadays because the time to live is complicated and various audio equipments have become indispensable. . This floor impact sound is divided into a heavy impact sound that is generated when a child jumps and a light impact sound that is a sound that is generated when a hard object such as a spoon falls or when a chair is pulled. Therefore, it is necessary to improve the weight and the weight of the floor impact sound.

Conventionally, in a wooden frame house, a flooring is laid on a joist provided on a floor beam via a base material. Then, as a method for improving floor impact sound in such a floor structure, a method of laying a vibration-proof mat made of vulcanized rubber or an asphalt damping material between the flooring and the base material, or two sheets A sandwich structure having a vibration-damping sheet sandwiched between the base materials has been proposed. As a sandwich structure, there has been proposed a soundproof material using a honeycomb in which a viscoelastic material is coated on the entire surface of the honeycomb as a core material. Also, laying the anti-vibration mat,
It is also proposed to arrange glass wool in the space between joists. Further, there has been proposed a soundproof wood flooring material in which a cushioning material is provided on the back surface of the flooring, and a vibration damping material is further combined.

[0004]

However, the sound-proof floor material made of the above-mentioned vulcanized rubber or asphalt damping material, and the sound-proof floor material made of the sandwich structure of the damping sheets have the ability to block heavy and light impact noise. There is a problem that is insufficient.

That is, although the above-mentioned vibration-proof mat and sandwich structure have the effect of attenuating the lightweight impact sound in the middle and high frequency range due to the vibration transmission due to the vibration damping effect, if the material itself does not have a certain thickness, those effects are exerted. I can't show it enough. However, if the material is thickened, there is a problem that the thickness of the soundproofing floor material as a whole increases, resulting in a considerable weight and deterioration in workability. For this reason, at present, it is not possible to clear L-65 in a general wooden framed house as a lightweight impact sound blocking performance.

Further, in a sandwich structure using a honeycomb in which a viscoelastic material is coated on the entire surface of the honeycomb as a core material,
Since the viscoelastic material is on the entire surface, there is a problem in that the weight and cost of the soundproofing material increase. Also, in the case of soundproof flooring in which a vibration-proof mat is laid and glass wool is placed in the space between joists, the work of making the impact sound of a lightweight impact sound is improved by the vibration control effect of asphalt and the sound absorption effect of glass wool, but the work is complicated. There is a problem that the workability becomes poor. or,
Since the cushioning material is used in the soundproof wooden floor material, there is a problem that the walking feeling is deteriorated.

Further, although the above-mentioned materials have a light-weight impact sound blocking effect, it is difficult to improve the blocking performance of heavy-weight impact sound in the low frequency range. As a method for improving the insulation performance of this heavy impact sound, it has been known to have a structure having rigidity enough to withstand impact, but in consideration of problems such as narrowing the living space, In consideration of sex,
The base material cannot be unduly thick and heavy.
For this reason, at present, L-65 cannot be cleared as the performance of blocking heavy impact sound in a general wooden framed house.

Therefore, it is possible to arrange the above-mentioned soundproof floor materials between the joists to increase the rigidity of the floor material.
If the thickness of the floor material is the same as that of joists, the weight of the floor material becomes considerable and the workability is deteriorated. In a sandwich structure using a honeycomb in which a viscoelastic material is coated on the entire honeycomb surface as a core material, since the viscoelastic material is present at the bonding surface between the honeycomb and the face material, the rigidity of the sandwich structure is not sufficient. is there.

The present invention has been made in order to solve the above-mentioned problems, and its object is to improve the lightness and the ability to block heavy impact noise, and to improve the workability and the walking feeling. It is to provide a soundproof floor material that does not have.

[0010]

In order to solve the above problems, according to the present invention, a plate material is attached to at least one opening face side of a honeycomb material, and a viscoelastic material is applied to a part of the honeycomb material. .

In this case, the honeycomb material is preferably at least one material selected from paper and aluminum. Also, the honeycomb material may be composed of a plurality of layers. The plate material may be a wood material, or a laminated structure of a wood layer and an asphalt layer. Alternatively, the plate material may be attached to both opening surfaces of the honeycomb material. Further, the plate material may include a frame body surrounding the honeycomb material, or a part or all of the plate material may be an aluminum plate. The viscoelastic material may be asphalt.

[0012]

According to the structure of the present invention, the plate material is adhered to at least one opening surface side of the honeycomb material, and the viscoelastic material is applied to a part of the honeycomb material. In the case of arrangement, rigidity is obtained without increasing weight even if the thickness increases, and heavy impact sound, that is, vibration sound in the low frequency range is absorbed. In addition, the vibration-damping action of the viscoelastic material attenuates light-weight impact sound, that is, vibration sound in the middle and high frequency ranges.
The damping effect of the lightweight impact sound due to the vibration damping effect is enhanced by increasing the amount of the viscoelastic material deposited as the honeycomb material becomes thicker. In addition, the workability when arranging the soundproof floor material between the joists is improved.

Further, if the viscoelastic material is applied to a part of the honeycomb material so that the opening surface of the honeycomb material to which the plate material is adhered is not applied, the viscoelastic material is applied to the honeycomb material. The honeycomb material and the plate material are firmly bonded to each other as compared with the case where the honeycomb material and the plate material are adhered to the whole. By such adhesion, the honeycomb material and the plate material are integrated, and the rigidity of the soundproof flooring material as a whole is enhanced, and the effect of absorbing heavy impact sound is enhanced.

Further, the honeycomb material is composed of a plurality of layers, so that it is applied to a honeycomb material which is easily bent only in a certain direction on a plane without a plate material, and the honeycomb material is separated in different bending directions. By stacking a plurality of honeycomb materials in the same direction as the rigidity direction of the honeycomb material, the rigidity can be further increased.

Further, the plate material is adhered to both opening surfaces of the honeycomb material, the frame body covering the honeycomb material is provided, and the plate material is provided with an aluminum plate. Is further enhanced and absorption of the heavy impact sound is promoted. Further, since the plate material has the laminated structure of the wood layer and the asphalt layer, the damping effect of the lightweight impact sound can be enhanced by the same damping effect as the viscoelastic material.

In the present invention, it is preferable that the honeycomb material is at least one kind of material selected from paper or aluminum from the viewpoints of blocking performance against heavy impact sound, processability, cost and the like. In addition to the above, the material of the honeycomb material may be fibers other than paper or wood materials such as plywood. Furthermore, the thickness of the honeycomb material, the shape of the cells of the honeycomb material, and the size of the cells can be appropriately selected depending on the desired performance, but the thickness is 200 mm or less, preferably 50 mm to 1
00 mm is suitable. Examples of the structure of the honeycomb material include hexagonal honeycomb and corrugated honeycomb.

It is preferable that the plate material is a wood material such as a plywood plate in terms of workability and cost. In addition to the materials described above, a sheet material such as an aluminum plate, synthetic resin, or non-woven fabric may be used as the material of the plate material. The thickness of the plate is 3m in terms of soundproof performance.
It is preferably m to 20 mm. Further, part or all of the plate material may be an aluminum plate, or the plate material may have a laminated structure of a veneer plate and an asphalt layer. In this case, the thickness of the aluminum plate is about 1 mm, and the thickness of the veneer plate and the asphalt layer is 3 mm to 20 mm. Preferably there is.

Examples of viscoelastic materials include asphalt polymer materials, EVA polymer materials, polyurethane polymer materials and the like. Among them, it is particularly preferable to select an asphalt-based or EVA-based polymer material because it has excellent vibration damping properties and is inexpensive.

[0019]

【Example】

(Embodiment 1) Hereinafter, Embodiment 1 in which the present invention is embodied in a soundproof floor panel will be described with reference to the drawings.

FIG. 1 is a partially cutaway perspective view of a soundproof floor panel according to the first embodiment, and FIG. 2 is a partial sectional view of the soundproof floor panel. As shown in FIGS. 1 and 2, a soundproof floor panel B has veneer plates 2 as plate members attached to both opening surfaces of a honeycomb material 1 made of paper, and the honeycomb material 1 has asphalt (thickened for convenience in FIG. 2). ) 3 is applied. Then, the soundproof floor panel B is arranged between the joists 5 provided on the floor beams 4 constituting the wooden frame house (not shown), and the soundproof floor panel B
And a flooring (surface wood) 6 is laid on the joists 5.

The method for manufacturing the soundproof floor panel B will be briefly described. A honeycomb material 1 made of paper having hexagons each side of which is 12 mm and cells 1a having a height of 49 mm is formed, and the honeycomb material 1 is softened. Then, it is dipped in the asphalt that has become a viscous fluid for a predetermined time. Next, after the asphalt 3 adhered to the honeycomb material 1 is solidified, a 5.5 mm thick veneer plate 2 is adhered to both opening surfaces of the honeycomb material 1 with a vinyl acetate-based adhesive, respectively, and a 60 mm thick soundproofing is applied. Obtain floor panel B. At this time, the weight of the soundproof floor panel B has a panel size of width 410.
mm, length 1820 mm, and 9 kg / m ² .

The soundproof floor panel B manufactured as described above is provided on the floor beam 4 of the wooden framed house, and is arranged between the joists 5 having substantially the same thickness as the soundproof floor panel B. And a flooring 6 having a thickness of 12 mm was adhered to the joists 5 with an adhesive. In this state, the weight and the lightweight impact sound level were measured at 5 points on the flooring 6 by the method of JIS-A-1418. The measurement results are shown in Table 1. As shown in Table 1, both the weight and the lightweight impact sound were values that cleared L-65.

(Second Embodiment) Next, a second embodiment will be described. In this embodiment, as shown in FIGS. 3 and 4, the frame body 7 that surrounds the honeycomb material 1 is interposed between both veneer plates 2, which is different from the first embodiment. The frame body 7 corresponds to the joist 5 of the first embodiment. At this time, the soundproof floor panel B
Has a thickness of 60 mm, a weight of 910 mm, and a length of 182
It was 21 Kg / m ² at 0 mm.

Soundproof floor panel B constructed as described above
Is fixed with a wood screw (not shown) on the floor beam 4 of the wooden frame house where the joist 5 is not provided. In this state, the weight and the light impact sound level were measured at five points on the flooring 6 in the same manner as in Example 1. The measurement results are shown in Table 1. As shown in Table 1, both the weight and the lightweight impact sound were better than L-65.

(Third Embodiment) Next, a third embodiment will be described. In this embodiment, as shown in FIG.
Is the upper layer honeycomb material 1b each having a thickness of 28.5 mm
And the lower layer honeycomb material 1c have a two-layer structure, and the veneer plate 2 is attached only to one surface of the upper layer honeycomb material 1b. In the state where the veneer plate 2 is not adhered, the upper and lower honeycomb materials 1b and 1c are easily bent in one direction on the plane and have a maximum rigidity in the direction orthogonal to the bending direction. There is. The honeycomb material 1 is laminated with an adhesive in a state where the bending direction X of the lower layer honeycomb material 1c and the rigidity direction Y of the upper layer honeycomb material 1b are matched. Therefore, in the honeycomb material 1 configured as described above, the bending directions of the upper and lower honeycomb materials 1b and 1c are less likely to bend, and the overall rigidity can be further increased. At this time, the thickness of the soundproof floor panel B is 60 mm.
The weight is 7 kg / m ² with the same panel size as in Example 1.
Met.

The soundproof floor panel B using the above-mentioned honeycomb material 1 is arranged in the same manner as in Example 1 so that the lower-layer honeycomb material 1c is located on the floor beam, and the weight and weight are set at five points of the flooring. The impact sound level was measured. The measurement results are shown in Table 1. As shown in Table 1, both the weight and the lightweight impact sound were values that cleared L-65.

(Fourth Embodiment) Next, a fourth embodiment will be described. In this example, the honeycomb material 1 is made of aluminum, and as shown in FIG. 6, the asphalt 3 is applied in the thickness direction except the vicinity of both opening surfaces of the honeycomb material 1. Then, aluminum plates 8 having a thickness of 1 mm are attached to both opening surfaces of the honeycomb material 1. At this time, since the asphalt 3 is not adhered to the bonded portion of the honeycomb material 1 to each aluminum plate 8, both are firmly bonded. At this time, the thickness of the soundproof floor panel B is 60 mm.
The weight is 10 kg / m with the same panel size as in Example 1.
^{Was 2} .

Using the soundproof floor panel B constructed as described above, the weight and light impact sound level were measured in the same manner as above. The measurement results are shown in Table 1. As shown in Table 1, both the weight and the lightweight impact sound were better than L-65.

(Fifth Embodiment) Next, a fifth embodiment will be described. In this embodiment, as shown in FIG. 7, the plate materials attached to both opening surfaces of the honeycomb material 1 made of aluminum are different from those in the fourth embodiment. The veneer plate 2 is attached to one opening surface side of the honeycomb material 1, and the aluminum plate 8 is attached to the other opening surface side. Further, the veneer plate 2 is attached to the aluminum plate 8 and the plate material 9 is attached. Are configured. At this time, the soundproof floor panel B had a thickness of 60 mm, and the weight was 10 kg / m ² with the same panel size as in Example 1.

Using the soundproof floor panel B constructed as described above, the weight and light impact sound level were measured in the same manner as above. The measurement results are shown in Table 1. As shown in Table 1, both the weight and the lightweight impact sound were better than L-65.

(Sixth Embodiment) Next, a sixth embodiment will be described. In this embodiment, as shown in FIG. 8, the configuration of the plate material 9 attached to both opening surfaces of the honeycomb material 1 made of paper is different from that of the first embodiment. The plate member 9 has a sandwich structure having an asphalt layer 10 having a thickness of 2 mm between two veneer plates 2 having a thickness of 2.5 mm. At this time, the thickness of the soundproof floor panel B was 60 mm, and the weight was 14 kg / m ² with the same panel size as in Example 1.

Using the soundproof floor panel B constructed as described above, the weight and light impact sound level were measured in the same manner as above. The measurement results are shown in Table 1. As shown in Table 1, the lightweight impact sound improved with the damping effect of the asphalt layer 10.

(Seventh Embodiment) Next, a seventh embodiment will be described. In this embodiment, as shown in FIG. 9, the plate material 9 is different from the sixth embodiment in that it is composed of one veneer plate 2 having a thickness of 5.5 mm and an asphalt layer 10 having a thickness of 3 mm. Further, veneer plates 2 are attached to both opening surfaces of the honeycomb material 1, and the asphalt layer 10 is the outermost layer. At this time, the thickness of the soundproof floor panel B was 60 mm, and the weight was 15 kg / m ² with the same panel size as in Example 1.

Using the soundproof floor panel B constructed as described above, the weight and light impact sound level were measured in the same manner as above. The measurement results are shown in Table 1. As shown in Table 1, the lightweight impact sound was improved due to the vibration damping action of the asphalt layer 10 as described above.

(Embodiment 8) Next, an embodiment 8 will be described. In this embodiment, as shown in FIG. 10, the plate material 9 is attached only to one surface of the honeycomb material 1. The plate material 9 includes a veneer plate 2 having a thickness of 2.5 mm attached to one surface of the honeycomb material 1, an asphalt layer 10 having a thickness of 2 mm attached to the veneer plate 2, and a thickness of 1 m attached to the asphalt layer 10.
m aluminum plate 8. At this time, the soundproof floor panel B has a thickness of 45 mm and a weight of the first embodiment.
The panel size was the same as that of 10 kg / m ² .

Soundproof floor panel B constructed as described above
Is used by adhering the surface of the honeycomb material 1 on the side where the plate material 9 is not attached to the floor beam 4. In this state, the weight and the lightweight impact sound level were measured as described above. Table 1 shows the measurement results
Shown in. As shown in Table 1, both the weight and the lightweight impact sound were better than L-65.

[0037]

[Table 1] The present invention is not limited to the above-mentioned embodiments, and may be as follows without departing from the spirit of the present invention.

(1) The cells 1a of the honeycomb material 1 may be filled with glass wool, urethane foam or the like to obtain sound absorbing properties, heat insulating properties and the like. (2) A carpet may be attached instead of the flooring 6, or the soundproof panel B may be attached to a wall other than the floor and a wallpaper may be attached instead of the flooring 6 for use.

[0039]

As described above in detail, according to the present invention, the plate material is adhered to at least one opening face side of the honeycomb material, and the viscoelastic material is adhered to a part of the honeycomb material. When placed between the joists on the floor beam, even if the thickness increases, it does not become heavier, and the honeycomb material and the plate material are firmly bonded to each other to obtain rigidity, improving the insulation performance against heavy impact sound, The viscoelastic material's vibration-damping effect can improve the light-weight impact sound insulation, and also has an excellent effect that the workability when arranging the soundproof floor material between the joists is good and the walking feeling is not deteriorated. Play.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view showing a soundproof floor panel according to a first embodiment of the present invention.

FIG. 2 is likewise a partial cross-sectional view showing a usage state of the soundproof floor panel.

FIG. 3 is a partially cutaway plan view showing a soundproof floor panel according to a second embodiment.

FIG. 4 is also a partial cross-sectional view showing a usage state of the soundproof floor panel.

5 is a partially cutaway perspective view showing a soundproof floor panel of Example 3. FIG.

FIG. 6 is a partial cross-sectional view showing a usage state of a soundproof floor panel of Example 4.

FIG. 7 is a partial cross-sectional view showing a usage state of a soundproof floor panel of Example 5.

FIG. 8 is a partial cross-sectional view showing a usage state of the soundproof floor panel of the sixth embodiment.

FIG. 9 is a partial cross-sectional view showing a usage state of the soundproof floor panel of Example 7.

FIG. 10 is a partial cross-sectional view showing a usage state of the soundproof floor panel of Example 8.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Honeycomb material, 2 ... Veneer board as a board material, 3 ... Asphalt as a viscoelastic material, 7 ... Frame body, 8 ... Aluminum board which comprises a board material, 9 ... Board material, 10 ... Asphalt layer which comprises a board material, B ... Soundproof floor panel as soundproof floor material.

Claims (9)

[Claims] 1. A soundproof flooring material, characterized in that a plate material is attached to at least one opening surface side of a honeycomb material, and a viscoelastic material is attached to a part of the honeycomb material. 2. The soundproof flooring material according to claim 1, wherein the honeycomb material is at least one material selected from paper and aluminum. 3. The soundproof flooring material according to claim 1 or 2, wherein the honeycomb material has a plurality of layers. 4. The soundproof flooring material according to claim 1, wherein the plate material is a wood material. 5. The soundproof flooring material according to claim 1, wherein the board material has a laminated structure of a wood layer and an asphalt layer. 6. The soundproof flooring material according to claim 1, wherein the plate material is attached to both opening surfaces of the honeycomb material. 7. The soundproof flooring material according to claim 1, wherein the plate material includes a frame body surrounding the honeycomb material. 8. A part or the whole of the plate material is an aluminum plate.
The soundproof floor material described in the item. 9. The soundproofing flooring material according to claim 1, wherein the viscoelastic material is asphalt.