JP2918907B2 - Floor structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to a method of supporting a floor base panel on a floor base such as a concrete slab via a support member, providing a piling material on the floor base panel, The present invention relates to a floor structure in which a finishing material is provided on an upholstery.

[Conventional technology]

A floor structure constructed at a predetermined height from the floor base via a so-called support member is called a dry double floor structure, and is often used in apartment houses, physical education 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 cushion the impact applied on the floor.

[Problem to be solved]

Even if the cushion rubber is attached to the lower end of the support member, when a wood-based finishing material is used as the finishing material, the impact of the floor is more easily transmitted than the finishing material such as a carpet, and the floor of a concrete slab or the like is passed through the supporting member. There was a drawback that the loud sound was carried downstairs because it was transmitted as solid sound to the base.

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

[Means for solving the problem]

In order to achieve the above-mentioned object, a floor base panel is supported on a floor base such as a concrete slab via a support member, a piling material is provided on the floor base panel, and a finishing material is provided on the piling material. In the structure, the pruning material is provided on the entire lower surface of the finishing material, and a vibration damping material or a sound insulation material is provided at least on both surfaces of the pruning material.

[Action]

In the present invention, when an impact is applied to the floor, the vibration is damped at the place of the damping material or the sound insulating material, and the sound is sound-insulated, and becomes a solid sound on the floor base such as a concrete slab through the support member. Prevent transmission.

〔Example〕

Hereinafter, preferred embodiments of the present invention will be described 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 piling material 4 is provided on the floor base panel 3. ,
A finishing material 5 is provided on the sacrificial material 4. Support member 2 is a leg
A cushion rubber 2B is provided at the lower end of 2A, and the cushion rubber 2B is configured to be in contact with the floor base 1. By rotating the leg 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 shape. Further, a damping material or a sound insulating material 7 is provided on the lower surface of the throw-out material 4. Further, a vibration damping material, a sound insulating material or a cushioning material 8 is also provided on the lower surface of the finishing material 5.
Is provided. These vibration damping materials or sound insulating materials 6 to 8 are made of a plastic, rubber or olefin viscoelastic body containing an inorganic filler, or a plastic or rubber viscoelastic body mixed with asphalt. 1-4m
Use something about m. When the floor base panels 3 are laid on the floor base 1, a gap is provided between the floor base panels 3 and the floor base panels 3 are laid. A sound absorbing material 9 is provided in the gap between the floor base panels 3 so as to divide the space under the floor. As the sound absorbing material 9, rock wool, glass wool or urethane foam can be used, but a material obtained by processing urethane foam is desirable. Due to the presence of the sound absorbing material 9 provided in the gap between the floor base panels 3 and separating the underfloor space, the sound pressure in the underfloor space tends to increase when an impact is applied to the floor. The sound absorbing material 9 can reduce the sound pressure under the floor by absorbing the sound, and the sound absorbing material 9 can also prevent the horizontal movement of the air immediately below the point of impact.

3 to 6 show modifications of the first embodiment, respectively, in which the arrangement of the sound absorbing material 9 is changed.

The second embodiment shown in FIG. 7 shows an example in which floor base panels 3 laid on a floor base 1 are laid side by side, and an example in which a sound absorbing material is provided immediately below a butt portion of the floor base panel 3 is shown. FIG. 8 shows an example in which the upper surface of the sound absorbing material 9 is provided so as to contact the lower surface of the floor base 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 the floor base panel 3, and the 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 mounting position of the sound absorbing material 9 is different.

In the fourth embodiment shown in FIG. 11, a vibration damping material or a sound insulating material 7 is provided in a sandwich shape inside a discarded material 4.
FIG. 12 to FIG. 15 show an embodiment in which a damping material or a cushioning material 8 is provided between the waste materials 4 and on one surface of the floor base panel 3.

FIGS. 16 and 17 show the fifth embodiment and its modifications, in which a cushioning material 10 is provided on the lower surface of the finishing material 5. FIG. No.
As the cushioning material 10 in FIG. 16, a foamed or fibrous body having elasticity or a rubber-like elastic material was used, and as the cushioning material in FIG. 17, a porous fiber plate was used.

FIG. 18 shows a sixth embodiment in which a damping material or a 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 an embodiment in which a cushioning material 10 is provided in the middle of the finishing material 5, and FIG. 21 shows a modification of the eighth embodiment.

FIG. 22 to FIG. 42 show an embodiment in which the sound absorbing material 9 is also attached to the surroundings to further enhance the effect.

The graph shown in FIG. 43 corresponds to the first embodiment (reference symbols I and
II) and a comparative example (shown by reference numerals III and IV in the graph) in which the damping material or the sound insulating material 6 to 8 is not provided and the sound absorbing material 9 is not provided in the first embodiment. It shows a measurement result. Symbols I and III show the measurement results by light impact noise, and symbols II and IV show the measurement results by heavy impact noise. From this result, it can be seen that the performance was improved by two ranks (13 dB) for light impact sound and one rank (6 dB) for heavy impact sound.

In each of the above-described embodiments, in the so-called space construction method in which the space between the floor base panels 3 is opened, the workability is improved by installing the sound absorbing material 9 at a location where the space is opened.

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

[Effects] As described above, according to the present invention, the cutout material is provided on the entire lower surface of the finishing material, and at least the damping material or the sound insulating material is provided on both surfaces of the cutout material. In such a case, it is possible to prevent a case in which a space is formed immediately below the finishing material by the stuffing material laid on the floor, and this has an effect of effectively preventing noise and vibration caused by the generation of the gap. In addition, due to the presence of vibration damping material or sound insulation material, even when an impact force is applied on the floor, it is prevented from being transmitted as a solid sound to the floor base such as concrete slab through the support member, improving the floor impact sound insulation performance Can be achieved.

[Brief description of the drawings]

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

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int.Cl. ⁶ , DB name) E04F 15/18 601 E04F 15/00 101 E04F 15/20 E04F 15/22

Claims (1)

(57) [Claims] An under floor panel (3) is supported on a floor base (1) such as a concrete slab via a support member (2),
In a floor structure in which a piling material (4) is provided on a floor base panel (3) and a finishing material (5) is provided on the piling material (4), the piling material (4) is a finishing material (5). A floor structure provided over the entire lower surface of the base material, and provided with a vibration damping material or a sound insulating material (6 to 8) on both surfaces of at least the throw-away material (4).