JP2565449Y2 - Floor panel - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a novel floor base panel capable of preventing transmission of vibration and noise generated on an upper floor to a lower floor in a multi-story building.

[0002]

2. Description of the Related Art Generally, noise transmitted from an upper floor through a floor is roughly classified into light impact noise and heavy impact noise as described in JIS-A1418. The method of preventing these impact sounds is basically different. That is, since the light impact sound generated by the hard impact body is in the high frequency range, the floor structure is required to absorb high frequency, and it is said that it is effective to use a soft finishing material such as a carpet or a tatami mat. I have. The heavy impact sound generated by the soft impact body is in a low frequency region, and the floor structure is required to have a low frequency absorption capacity. In general, a method of increasing the mass of the floor structure is regarded as an effective means. In recent years, with the spread of finishing materials having a low surface buffering effect, such as wood finishing materials (wood flooring) and stone board finishing materials, the problem of lightweight impact noise has been taken up. As one of the methods for solving the above-mentioned problem, a method of arranging a floor base panel having a vibration-proof property between a finishing material and a floor base is used.
As the floor base panel, a fibrous material such as glass wool or rock wool, or a material having a vibration-proof rubber or the like stuck on the lower surface of the plate material for imparting vibration damping properties is used. When the fibrous material is used as a floor base material, it can be greatly deformed by the load of heavy objects,
Further, there is a problem that the deformation is not restored even when the load is removed, and that the vibration-proof rubber or the like has a poor effect of reducing the light impact sound. For floor base panels using fibrous materials, a method of increasing the density of fibrous materials and increasing compressive strength, filling fibrous materials between bars using reinforcing bars at appropriate intervals In the former, the effect of reducing the impact noise is reduced, and in the case of the latter, the vibration is transmitted to the downstairs through the reinforcing bar, so the effect of the reduction is reduced. Has not arrived.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a light-weight floor panel which has an excellent effect of reducing floor impact noise and has a sufficient load resistance against heavy loads. As a result of repeated investigations on a flooring material panel having durability, a three-dimensional net-like structure in which natural or synthetic resin filaments are entangled three-dimensionally is used as a crosspiece to form a three-dimensional structure in which the fibers are entangled. , Showing good vibration energy blocking performance, and having characteristics that are difficult to set,
We have completed the present invention.

[0004]

That is, according to the present invention, an upper plate, a lower plate, and a crosspiece are provided , and the crosspiece is made of natural material.
Or, do not entangle synthetic fiber filaments in three dimensions.
Three-dimensional net-like structure, or a plate material on the three-dimensional net-like structure
Underfloor panel is provided, characterized in that is obtained by affixed.

Hereinafter, the present invention will be described with reference to the accompanying drawings. 1 to 6 are sectional views showing examples of the structure of the floor base panel according to the present invention. The floor base panel shown in FIG. 1 has a three-dimensional net-like structure as a cross between an upper plate 1 and a lower plate 2.
FIG. 2 is a cross-sectional view of a three-dimensional net-like structure, in which a bar is used on which a plate member 4 for level adjustment is attached above and below a three-dimensional net-like structure, and a buffer sheet for adjusting unevenness is provided on the lower surface of the lower layer plate member 2. 5
FIG. 3 shows a structure in which the fibrous material 6 is filled between the bars shown in FIG. FIG. 4 shows a structure in which the three-dimensional net-like structure 3 used as a crosspiece is used twice with a plate 4 interposed therebetween. FIG. 5 shows the structure of FIG.
6 shows a structure in which a three-dimensional net-like structure 3 is attached to the lower plate 2 in addition to the configuration shown in FIG. In addition, the floor base panel according to the present invention is not limited to these configuration examples, and the upper plate material,
Composed of lower plate and bar, said bar being natural or synthetic
A three-dimensional network structure in which fiber filaments are entangled three-dimensionally.
The laminate structure is not particularly limited as long as the laminate or the three-dimensional net-like structure is formed by attaching a plate material .

FIGS. 7, 8 and 9 show a configuration as a comparative example. FIG. 7 shows a fibrous material 6 stuck on the lower surface of the upper plate 1. FIG. 8 shows a state in which a fibrous material 6 is inserted between the upper plate 1 and the lower plate 2, and a buffer sheet 5 for adjusting unevenness is adhered to the lower surface of the lower plate 2, and FIG. A wooden bar 8 for reinforcement is inserted into the structure. FIG.
Shows a plan view of the floor base panel, and broken lines in the figure show the positions of the crosspieces. The width of the bar is usually about 30 to 300 mm, preferably 5 to 300 mm.
Those having a size of about 0 to 150 mm are used, but are not limited to these. The width and pitch of the crosspiece may be appropriately selected according to the rigidity of the plate material placed on the crosspiece. A sheet-like material such as a plastic sheet, a rubber sheet, or a nonwoven fabric may be attached to one or both surfaces of the three-dimensional net-like structure 3 so as to facilitate lamination. The three-dimensional network structure 3 is a non-resonant, three-dimensional network structure made of three-dimensionally entangled natural or synthetic resin filaments relatively rich in rigidity.
Using a non-forced vibration type dynamic stiffness tester,
A structure showing a value of 0 N / cm ² · cm or less is preferable, and the lower the value, the better. If this value exceeds 100 N / cm ² · cm, the effect of buffering the impact sound will not be sufficient.

Examples of the structure of the present invention showing 100 N / cm ² · cm or less include nylons such as 6 nylon and 66 nylon, polypropylene, and rigid and semi-rigid polyvinyl chloride, polyacetal, and polyester resin filaments. . Filaments such as low-density polyethylene / vinyl acetate copolymer, ABS resin, and rubber-modified polystyrene have insufficient "stiffness" and thus include a three-dimensional network structure composed of a partial range. Also, a certain range of rigidity among natural fibers such as palm can be used as a net-like structure falling within the numerical values of the present invention. However, when natural rigid fibers are used in apartment buildings, ventilation may be insufficient to promote the occurrence of ticks, etc., or the strength may be reduced due to strong alkaline moisture. It is preferable to take measures such as resin impregnation before use. In this sense, the three-dimensional network structure made of the synthetic resin filament is a more preferable material and forms the skeleton of the present invention. The diameters of the filaments of these three-dimensional network structures vary depending on the material. However, in order for the network structures to have physical properties of 100 N / cm ² · cm or less, those having a diameter of 0.2 mm to 3 mmφ are usually used. If the diameter is smaller than this, no matter how dense the mesh structure is, it will be deformed by a load or an impact, and the effect cannot be exhibited. In addition, a material having a diameter of 3 mm or more is too rich in rigidity and does not exhibit such a behavior as to reduce impact noise. In addition, the thickness of the three-dimensional net-like structure is 2 mm or more, and if it is less than 2 mm, the effect of reducing the impact sound is poor.

As shown in FIG. 4, a three-dimensional net-like structure used for a crosspiece can be used in multiple layers in order to enhance the effect of reducing the impact sound. As shown in FIG. May be attached, or the structure shown in FIG. 6 may be used. As the fibrous material 6 to be filled between the bars shown in FIG. 3, glass wool, rock wool, felt, non-woven fabric, or the like, or a combination thereof is used. These fibrous materials also have the heat insulating effect, and further have the effect of further reducing lightweight impact noise by combining with a crosspiece having a three-dimensional network structure as a constituent factor. As the upper board 1 and the lower board 2 constituting the floor base panel, plywood, particle board, hard board, natural wood such as cedar board, plastic board, ceramic board, and the like, or a combination thereof are used. Further, a flexible sheet having a cushioning and vibration damping effect may be added. The thickness of these plates depends on the type and specifications of the finished plate, etc.
Those having a size of about 50 mm, preferably about 4 to 30 mm are used. The arrangement of the panels may be such that the panels are closely adjacent to each other or have a spacing. A wooden floor is generally placed on the upper part of the floor base panel, but it may be a floor heating unit or a facility unit that generates vibration. Further, the panel according to the present invention can be used as a wall material.

[0009]

The present invention will be described in more detail with reference to the following examples. Example of floor base panel subjected to floor impact sound test,
Table 1 shows the configuration, thickness, and the like of the comparative example.

[0010]

[Table 1]

The three-dimensional net-like structure is made of nylon,
Wire diameter 0.8 mm, non-adjusting material is polyethylene, foam ratio 7.0 times, fibrous material is glass wool thickness 25 mm, density 32 kg / m ³ (Example 3, Comparative Example 2), glass wool thickness 25 mm, density 96 kg / m ³ (Comparative Example 1) was used for each.
In addition, the first to sixth embodiments correspond to FIGS.
Comparative Examples 1 and 2 have a structure corresponding to FIGS. 8 and 9, respectively.

[0012]

[Table 2]

[0013] In the table, walking sensation A: not too stiff and has moderate elasticity B: Too hard, risk of injury when falling. Are shown below.

The method of measuring the floor impact sound is as follows. A floor base panel having a length of 1800 mm and a width of 2700 mm is placed on the center of a 150 mm concrete slab of a room having a height of 3600 mm and a width of 2680 mm and a height of 1800 mm from the floor to the ceiling slab. And fixed to a concrete slab. The floor base panels are 900 mm x 900 mm in size, two rows vertically and three rows horizontally.
Columns. The floor base panel using the bars was arranged as shown in FIG. 10 and the width of the bars was 70 mm. A flooring with a thickness of 12 mm was placed on the floor base panel and fixed with nails. The impact sound from a floor tapping machine based on JIS A 1418 was measured with the microphone 10 installed at the center of the room at a height of 1200 mm above the floor. As shown in the examples, the floor base panel according to the present invention has an improved L class, excellent vibration suppression and soundproofing effects, and a good walking sensation. In addition, the propagation of vibration and noise was severe, and the walking feeling was poor.

[0015]

As described above, the floor base panel according to the present invention uses the crosspiece having a three-dimensional net-like structure having a moderate rigidity as a constituent factor as described above. And there is an excellent effect of reducing lightweight impact sound.

[0016]

[Brief description of the drawings]

FIG. 1 is a sectional view of an embodiment of a floor base panel.

FIG. 2 is a cross-sectional view of another floor base panel embodiment.

FIG. 3 is a sectional view of another floor base panel embodiment.

FIG. 4 is a cross-sectional view of another floor base panel embodiment.

FIG. 5 is a cross-sectional view of another floor base panel embodiment.

FIG. 6 is a cross-sectional view of another floor base panel embodiment.

FIG. 7 is a sectional view of a floor base panel comparative example.

FIG. 8 is a cross-sectional view of another comparative example of floor base panel.

FIG. 9 is a cross-sectional view of another floor base panel comparative example.

FIG. 10 is a plan view of a floor base panel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Upper layer board 2 Lower layer board 3 Three-dimensional net-like structure 5 Unadjustment material 6 Fibrous material

Claims (2)

(57) [Scope of request for utility model registration] 1. An underfloor panel installed on a floor base of a building structure, wherein the underfloor panel is composed of an upper plate, a lower plate, and a bar, and the bar is made of natural or synthetic fiber.
A three-dimensional network structure in which filaments are three-dimensionally entangled
A body, or a plate material attached to the three-dimensional network structure,
The floor base panel, wherein the three-dimensional network structure has a thickness of 2 mm or more and a dynamic rigidity test value of 100 N / cm ² · cm or less. 2. The floor base panel according to claim 1, wherein a fibrous material is filled between the crosspieces.