JP5409255B2 - Damping / soundproof flooring and floor structure using the flooring - Google Patents

Description

  The present invention relates to a vibration-damping and sound-insulating floor material used for preventing vibration and sound from propagating downstairs, particularly in a multi-story house, and a floor structure using the floor material.

  Various measures have been seen so far for vibration control and soundproofing for flooring. For example, a damping sheet is laminated on the surface of the base material plywood via an adhesive layer having viscoelasticity, a surface layer plywood is laminated on the vibration damping sheet via the adhesive layer, and a cushioning material is provided on the back surface of the base material plywood There is known a technique for adhering to (see Patent Document 1).

  According to the above technique, it is possible to prevent the adhesive impregnated in the vibration damping sheet from being solidified and impairing the effect of suppressing the floor impact energy of the vibration damping sheet.

  Moreover, as a soundproofing measure in a multi-story house, there is known a building composite board in which at least two building boards of the same kind or different kinds are bonded together with a vibration-damping adhesive (see Patent Document 2).

  It is assumed that the above-described technology can be expected to have a vibration-damping and sound-proofing effect while eliminating the complexity during construction and the uncomfortable feeling of walking in the technology using a conventional vibration-damping sheet.

Japanese Utility Model Publication No. 4-82247 JP-A-9-203153

  However, according to any of the above-mentioned prior art documents, a certain level of vibration and soundproofing effect can be expected as a single flooring material. In view of the construction, it is necessary to install a plurality of flooring materials vertically and horizontally. For example, it is inevitable that an impact generated on a specific floor material propagates to an adjacent floor material.

  In view of this point, the present invention is a floor material that has been devised to absorb vibration and sound caused by the generated impact and to improve the construction efficiency, and the impact generated in a specific floor material is vertically and horizontally adjacent to the floor. It is an object of the present invention to provide a vibration-damping and sound-insulating floor material that exhibits effective vibration damping and sound-proofing effects as a whole room by preventing transmission to the material, and a floor structure using the floor material.

In order to solve the above problems, the present invention is configured as follows. That is,
The vibration-damping and sound-insulating floor material according to claim 1 has an impact cushioning material and a sound-absorbing material alternately arranged on the back surface of the base material, and is attached to the surface of the base material via a vibration-damping viscoelastic layer. The high-specific-density sound-insulating material is bonded and laminated, and the high-density sound-insulating material having a shape substantially similar to that of the base material is configured to be longer on each side than the base material. It is characterized in that the material and the base material are attached and laminated while being shifted in parallel.

  In addition, the floor structure according to claim 2 is a floor structure using the vibration-damping and sound-insulating floor material according to claim 1, and when the sound-damping and vibration-damping materials are abutted against each other, the floor structure is constant. It is characterized by the fact that it is spread vertically and horizontally with a gap between them.

  According to the vibration-damping and sound-insulating floor material according to the present invention, the high-density gravity sound-insulating material suppresses transmitted sound and vibration and absorbs lightweight impact sound, and the shock-absorbing material absorbs impact force to the maximum extent, The effect of sound (heavy impact sound) is reduced, and the sound absorbing material absorbs reverberation sound and muffled sound, preventing the sound from spreading to the surroundings. Will play.

  Further, the floor structure according to the present invention is formed by laying the vibration-damping and sound-insulating floor material according to the present invention vertically and horizontally against the sound-insulating and vibration-damping material of the adjacent vibration- and sound-insulating floor material. A certain gap is secured between the flooring base materials. If it does so, the impact which a specific flooring produced will not propagate to the surrounding floorings, but it will remain in the minimum sound source, and the vibration damping sound insulation effect as the whole floor structure is very high.

FIG. 1 is a view showing the back surface of a vibration-proof and sound-proof floor material according to the present invention. FIG. 2 is a view showing the surface of the vibration-damping and sound-insulating floor material according to the present invention. FIG. 3 is a view showing a side surface of the vibration-damping and sound-insulating floor material according to the present invention. FIG. 4 is an enlarged cross-sectional view in which a part of the A-A cross section is omitted. FIG. 5 is a view showing a state in which the vibration-damping and sound-proofing floor materials according to the present invention are spread together. FIG. 6 is a view showing a state in which the vibration-damping and sound-insulating floor materials according to the present invention are laid together. FIG. 7 is a view showing a state in which a flooring material is laid on the floor of the vibration-damping and sound-insulating floor material according to the present invention.

  The best mode for carrying out the invention will be described in the following examples.

A first embodiment of the present invention will be described with reference to FIGS.
1 is a view showing the back surface of the vibration-damping and sound-insulating floor material according to the present invention, FIG. 2 is a view showing the surface of the vibration- and sound- and sound-proofing floor material according to the present invention, and FIG. FIG. 4 is an enlarged sectional view in which a part of the AA section is omitted.

  A present Example is the flooring which concerns on this invention, Comprising: It is related with the rectangular-shaped damping sound-proofing flooring used in a multi-story house etc.

  In the figure, 1 is a vibration-proof and sound-proof floor material body according to the present invention, 2 is an impact cushioning material, 3 is a sound-absorbing material, 4 is a vibration-damping adhesive, 11 is a base material, 12 is a sound-insulating vibration-damping material, and 13 is a flooring. It is.

  The vibration-damping and sound-insulating flooring material 1 in the present example was rectangular, and the overall thickness was 22 mm.

  The shock-absorbing material 2 was obtained by using a chip obtained by pulverizing a flexible urethane foam as a main material, mixing a urethane adhesive with the chip, and press-molding it. In the present embodiment, a rod-shaped shock absorbing material having a long side of 440 mm, a short side of 40 mm, and a thickness of 10 mm is used.

  The sound absorbing material 3 is made of a polyester nonwoven fabric. In this embodiment, a sound absorbing material having a long side of 440 mm, a short side of 240 mm, and a thickness of 10 mm is used.

  The vibration-damping adhesive 4 is a functional adhesive having characteristics other than the adhesion function, and specifically maintains a certain degree of viscosity even after adhesion. The vibration-damping adhesive 4 in this example has an acrylic emulsion adhesive as an essential component, and 300 parts by weight of a filler is blended with 100 parts by weight of the acrylic emulsion. The filler may be appropriately changed as long as it is 300 parts by weight or less. The coating film thickness was 20 μm to 100 μm, preferably 20 μm to 50 μm, and 30 μm in this example (FIGS. 3 and 4).

The base material 11 is a wooden board, and in this embodiment, a particle board obtained by mixing small pieces of crushed wood pieces with an adhesive and hot-pressing them is used. The long side is 910 mm, the short side is 450 mm, and the thickness is 9 mm.
In addition, other wooden boards, for example, soft fiber boards called insulation boards (wood fibers made by paper molding and dried at room temperature), medium density fiber boards called MDF (medium density fiberboard), which has a higher specific gravity than this ( In addition to fiberboard such as dried wood meter fiber and pressure-heat-molded), Lauan plywood, China plywood, coniferous plywood, composite plywood mixed with coniferous and hardwood, and these plywood with insecticides Considering the properties of each board, such as treated insecticide-treated plywood, flame-retardant treated plywood treated with flame retardant, and flame-retardant treated plywood treated with flame retardant chemicals, it is adopted as appropriate according to the room and application to be used Good.

  The sound insulation damping material 12 is a high specific gravity sound insulation damping material, and specifically obtained by containing a high specific gravity metal powder such as tungsten, lead, copper, iron in a thermoplastic elastomer or a thermoplastic resin in a predetermined ratio. A plate-like resin composition (rubber mat) having a specific gravity of 2.0 or more. In this embodiment, the specific gravity is 2.3. The size of the sound insulation damping material 12 in this example is 915 mm for the long side, 455 mm for the short side, and 3 mm for the thickness.

  The sizes of the base material 11 and the sound insulation damping material 12 described above may be changed according to the place of use, and the sizes of the shock absorbing material 2 and the sound absorbing material 3 may be appropriately changed according to these.

  Based on the drawings, the structure of the vibration-proof and sound-proof flooring 1 according to the present invention will be described.

  The back surface of the base material 11 is configured such that the shock absorbing material 2 and the sound absorbing material 3 are alternately arranged. That is, the shock-absorbing material 2 is adhered with a predetermined interval parallel to the short side of the base material 11, and the sound absorbing agent 3 is adhered between the shock-absorbing materials 2. (FIG. 1).

  On the surface of the base material 11, a sound insulation damping material 12 is adhered and laminated via a viscoelastic adhesive 4, and at this time, the sound insulation and vibration damping long at each side corresponding to the base material 11 and the base material 11. The material 12 is attached while being shifted in parallel. In this example, due to the difference in the length of each side of both materials, one end of the long side direction is 35 mm ("a1" in FIG. 2), and the other end is 30mm ("b1" in FIG. 2). In the short side direction, one end is 35 mm (“a2” in FIG. 2), and the other end is 30 mm (“b2” in FIG. 2).

With the configuration as described above, the vibration-proof and sound-proof flooring main body 1 is a single unit, the high-density sound-insulation and vibration-damping material suppresses transmitted sound and vibration, absorbs light impact sound, and the shock-absorbing material has impact force. To reduce the influence of sound (heavy impact sound) downstairs, and the sound absorbing material absorbs reverberation and cloudy sounds, preventing the sound from spreading to the surroundings. An excellent effect of vibration control and soundproofing is achieved.
And the construction efficiency is greatly improved so that the above effect can be enjoyed in the whole room from the structure where the base material and the sound insulation damping material that is long on each side corresponding to the base material are shifted in parallel and laminated. Will be.

  When a floor impact sound level was simply measured on a test piece in which a solid pine flooring (thickness 15 mm) was laid as a surface finishing material on the vibration-damping and sound-proofing floor material in this example, the sound insulation grade for light impact sound was LL- Excellent results, similar to 45, were obtained.

  A second embodiment of the present invention will be described. FIG. 5 is a diagram schematically showing from the side how the vibration-damping and sound-insulating floor materials according to the present invention are spread, FIG. 6 is a diagram illustrating how the vibration-damping and sound-proofing floor materials according to the present invention are spread, FIG. These are the figures which showed a mode that the flooring material was spread | laid after laying down the vibration-proof soundproof floor material which concerns on this invention.

  A present Example is related with the floor structure using the vibration-proof sound-proof flooring main body 1 which concerns on this invention.

  When laying the vibration-proof and sound-proof flooring main body 1 according to the present invention (FIG. 5), the sound-insulation and vibration-damping of the vibration-proof and sound-proof floor (Y) is applied to the end surface a of the sound-proof and vibration-proof material 12 of the vibration-proof and sound-proof floor (X) The end surface b of the material 12 is abutted, and the end portion of the sound insulation and vibration damping material 12 of the vibration control and sound insulation floor material (Y) and the base material 11 of the vibration control and sound insulation floor material (X) are fastened with a tucker nail (t). Fix (FIG. 6). The flooring material 13 is laid down on the vibration-proof and sound-proof floor material in which the vibration-proof and sound-proof floor material body 1 is laid in the vertical and horizontal directions in this way (FIG. 7).

  According to the floor structure in the present embodiment, as shown in FIG. 6, a certain gap (g) is secured between adjacent base materials, and as a result, an impact generated in a specific vibration-damping and sound-insulating floor material is obtained. Since it does not propagate to the surrounding vibration-proof and sound-proof flooring material and can be kept to a minimum sound source, it becomes possible to obtain a floor structure having a very high vibration-proof and sound-proof effect as a whole room.

  The vibration-damping and sound-insulating flooring material and floor structure according to the present invention can be applied not only to apartment houses and multi-story houses, but also to any facility that needs to prevent vibration and sound from propagating downstairs and adjacent areas. It is widely adopted and widely used as a highly usable invention.

DESCRIPTION OF SYMBOLS 1 Floor material body 2 Impact buffer material 3 Sound absorbing material 4 Damping adhesive 11 Base material
12 Sound insulation and damping material 13 Flooring

Claims (2)

Damping material in which shock-absorbing material and sound-absorbing material are alternately placed on the back side of the base material and bonded, and the surface of the base material is laminated with a high-density sound-insulating vibration-damping material via a vibration-damping viscoelastic layer. Soundproof flooring,
The high-specific gravity sound-insulating material that is substantially similar to the base material is longer on each side than the base material,
A vibration and sound insulation flooring material characterized in that the high specific gravity sound insulation damping material and the base material are attached and laminated while being shifted in parallel. A floor structure using the vibration-damping and sound-insulating floor material according to claim 1, wherein when the sound-insulating and vibration-damping materials are abutted against each other, a certain gap is secured between adjacent base materials and spread vertically and horizontally. A floor structure characterized by that.

Images