JPH035563A - Floor structure - Google Patents

Abstract

PURPOSE:To improve sound insulating ability by a method wherein a floor bed panel, a laminate material, and a finish material are laid over a floor base through a support member, and a damping material or a sound insulating material is disposed in a sandwich state in the middle or on the one side of the laminate material. CONSTITUTION:A floor bed panel 3, a laminate material 4, and a finish material 5 are laid on a floor base 1, e.g. concrete slab, through support member 2. A damping material or a sound insulating materiel 6 formed by a visco-elastic material mixed with an inorganic filler is disposed in a sandwich state in the middle of the laminate material 3. Damping materials (sound insulating materials) 6, 7, and 8 can be disposed on the one side of the laminate material 3 or between 3 and 4 and 4 and 5. This constitution improves shut off performance for floor impact noise.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention supports a floor base panel on a floor base such as a concrete slab via a supporting member, provides a lining material on the floor base panel, and This relates to a floor structure in which a finishing material is provided on top of the upholstery.

[Conventional technology]

A floor structure constructed at a predetermined height from a floor base via so-called support members is called a dry double floor structure, and is often used in apartment complexes, sports facilities, and the like.

In such a dry double floor structure, a cushion rubber is provided at the lower end of the support member to buffer shocks applied to the floor.

[Problem to be solved]

Even if cushion rubber is attached to the lower end of the support member, if a wood-based finish is used as a finishing material, the impact of the floor will be more easily transmitted through the support member than a finishing material such as carpet, and the floor base such as a concrete slab will pass through the support member. Because it is transmitted as solid sound, it has the disadvantage of carrying a large amount of sound downstairs.

Therefore, it is an object of the present invention to provide a floor structure with improved floor impact sound insulation performance in addition to such a dry double floor structure.

[Means to solve the problem]

In order to achieve the above object, a damping material or a sound insulating material is provided in the middle of the upholstery material in a sandwich manner, or/and a damping material or a sound insulating material is provided on at least one side of the upholstery material.

[Effect]

In this invention, when an impact is applied to the floor, the vibration is damped at the damping material or the sound insulation material, and the sound is insulated, and solid sound is transmitted to the floor base such as a concrete slab through the support member. prevent it from being transmitted.

〔Example〕

Preferred embodiments of the present invention will be described below with reference to the drawings.

In the first embodiment shown in FIGS. 1 and 2, a floor base panel 3 is supported on a floor base 1 such as a concrete slab via a support member 2, and a sill material 4 is provided on the floor base panel 3. , a finishing material 5 is provided on the lining material 4. The support member 2 is the leg part 2
A cushion rubber 2B is provided at the lower end of A, and this cushion rubber 2B is in contact with the floor base 1. By rotating the leg portion 2A, the length thereof, that is, the height of the floor base panel 3 from the floor base 1 can be adjusted. A damping material or a sound insulating material 6 is provided inside the floor base panel 3 in a sandwich-like manner. Further, a damping material or a sound insulating material 7 is provided on the lower surface of the upholstery material 4. Furthermore, a damping material, a sound insulating material, or a buffering material 8 is provided on the lower surface of the finishing material 5. These damping materials or sound insulating materials 6 to 8 are made of plastic, rubber, or olefin viscoelastic materials mixed with inorganic fillers, or plastic or rubber viscoelastic materials mixed with asphalt. Use one with a diameter of about 1 to 4 mm. In addition, when laying the floor base panels 3 on the floor base 1, each floor base panel 3
Lay them out with gaps between them. A sound absorbing material 9 is provided in the gap between the underfloor panels 3 so as to divide the underfloor space. As the sound absorbing material 9, rock wool, glass wool, or urethane foam can be used, but urethane foam processed with a profile is preferable. Due to the presence of the sound absorbing material 9, which is provided in the gap between the floor subfloor panels 3 and dividing the underfloor space, when an impact is applied to the floor, the sound pressure in the underfloor space tends to increase. The sound absorbing material 9 can absorb sound and reduce the sound pressure under the floor, and can also prevent the air immediately below the point of impact from moving in the horizontal direction.

The embodiments shown in FIGS. 3 to 6 are modifications of the first embodiment, and show changes in the arrangement of the sound absorbing material 9.

The second embodiment shown in FIG. 7 shows an example in which the subfloor panels 3 laid side by side on the floor base all are laid side by side butt against each other, and the sound absorbing material 9 is provided directly below the butt points of the subfloor panels 3. FIG. 8 shows an example in which the upper surface of the sound absorbing material 9 is provided in contact with the lower surface of the floor subfloor panel 3.

The third embodiment shown in FIG. 9 shows an example in which a damping material or a sound insulating material 6 is provided on the lower surface of a floor subfloor panel 3, and a sound absorbing material 9 is provided so as to divide the underfloor space.

FIG. 10 shows a modification of the third embodiment, in which the sound absorbing material 9 is attached at a different position.

In the fourth embodiment shown in FIG. 11, a damping material or a sound insulating material 7 is provided inside a lining material 4 in a sandwich-like manner.

12 to 15 show an embodiment in which a damping material or a cushioning material 8 is provided between the upholstery materials 4 and on one side of the floor base panel 3.

16 and 17 show a fifth embodiment and a modification thereof, in which a cushioning material 10 is provided on the lower surface of the finishing material 5. FIG.

As the cushioning material 10 in FIG. 16, a resilient foam or fibrous material, or a rubber-like elastic material was used, and as the cushioning material in FIG. 17, a porous fiberboard was used.

FIG. 18 shows a sixth embodiment in which a damping material or sound insulating material 8 is provided between the finishing materials 5.

The seventh embodiment shown in FIG. 19 shows an example in which a cushioning material 10 is provided on the lower surface of the finishing material 5 in the sixth embodiment, and FIG. FIG. 21 shows a modification of the eighth embodiment.

FIGS. 22 to 42 show examples in which sound absorbing material 9 is also attached to the surroundings to achieve even greater effects.

The graph shown in FIG. 43 corresponds to the first embodiment (symbol I
, I [indicated by)] and a comparative example in which the allocation materials or sound insulating materials 6 to 8 in this first embodiment and the sound absorbing material 9 were not provided (indicated by symbols ■ and ■ in the graph). This shows the measurement results.

Symbols I and ■ indicate the measurement results using light impact sound, and symbols ■ and ■ indicate the measurement results using heavy impact sound. The results show that the performance improved by two ranks (13 dB) for light impact sounds and by one rank (6 dB) for heavy impact sounds.

Among the above-mentioned embodiments, in the so-called space construction method in which spaces are left between the flooring panels 3, the workability is improved by installing the sound absorbing material 9 in the spaces where the spaces are opened.

In addition, the sound insulation grades such as L-40 in FIG. 43 are as shown in the table below.

〔effect〕

As explained above, according to the present invention, a damping material or a sound insulating material is provided in the middle of the upholstery material in a sandwich shape, or/and a damping material or a sound insulating material is provided on at least one side of the upholstery material. Therefore, the presence of vibration damping or sound insulating materials prevents any impact force applied to the floor from being transmitted as solid sound to the floor base such as concrete slabs through the support members, and improves the floor impact sound isolation performance. Improvements can be made.

[Brief explanation of drawings]

FIG. 1 is a sectional view showing a first embodiment of the present invention, FIG. 2 is a plan view of the first embodiment of FIG. 1, and FIGS.
7 is a sectional view showing a modification of the embodiment, FIG. 7 is a sectional view showing a second embodiment, FIG. 8 is a sectional view showing a modification of the second embodiment, and FIG. 9 is a third embodiment. 10 is a sectional view showing a modification of the third embodiment, FIG. 11 is a sectional view showing a fourth embodiment, and FIGS. 12 to 15 are sectional views showing modifications of the fourth embodiment. 16 and 17 are sectional views showing the fifth embodiment and its modifications, FIG. 18 is a sectional view showing the sixth embodiment, and FIG. 19 is a sectional view showing the seventh embodiment. , FIG. 20 is a sectional view showing the eighth embodiment,
Fig. 21 is a sectional view showing a modification of the eighth embodiment, Figs. 22 to 42 are sectional views showing an embodiment in which sound-absorbing material is also attached to the surrounding area, and Fig. 43 is a measurement of floor impact sound isolation performance. It is a graph showing the results. DESCRIPTION OF SYMBOLS 1... Floor base, 2... Supporting member, 3... Floor base panel, 4... Threading material, 5... Finishing material,
6... Vibration damping material or sound insulation material.

Claims (1)

[Claims] 1. A floor in which a floor base panel is supported on a floor base such as a concrete slab via a supporting member, a lining material is provided on the floor base panel, and a finishing material is provided on the lining material. A floor structure characterized in that: A damping material or a sound insulating material is provided in the middle of the upholstery material in a sandwich manner, or/and a damping material or a sound insulating material is provided on at least one side of the upholstery material.