JPH0813641A - Vibrationproof floor panel - Google Patents

Abstract

PURPOSE:To improve vibrationproof performance and sound-insulating performance by disposing a plurality of fittings consisting of upper pieces formed at the upper ends of upstanding pieces and upper and lower holding pieces bearing a sound-insulating board through elastic bodies on a floor-panel base body. CONSTITUTION:A plurality of floor joist materials 5 are arranged in parallel at equal distances, and a floor backing board 6 is mounted on the top faces of the floor joist materials 5, thus forming a floor-panel base body 2. Sound- insulating boards 4 are inserted and built among the upper holding pieces 9 and lower holding pieces 10 of pairs of fittings 3 through elastic bodies 13, thus forming damper members 16. The upper pieces 11 of the fittings 3 of the damper members 16 are abutted against the underside of the floor backing board 6 as being inserted among the adjacent floor joist materials 5 of the floor-panel base body 2 while the undersides of lower pieces 12 are abutted against the top face of a corbel 14 constructed at right angles with the floor joist materials 5.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anti-vibration floor panel capable of forming an upper floor with excellent anti-vibration performance and sound insulation performance.

[0002]

2. Description of the Related Art Among solid noises generated in a detached house, a heavy floor impact sound from an upper floor (mainly the second floor) is a particular problem, and there is a high demand for countermeasures. Therefore, it is necessary to make the breaking performance L-70 grade specified by the industrialized house certified sound performance. Therefore, conventionally, a plurality of parallel joists a. As shown in FIG. 15, a floor panel p including a floor base plate b having a floor base plate b is formed by attaching two plaster boards c, c having a thickness of 12 mm between the floor base plate b and the joists a and a. As a result, the L-70 grade heavy floor impact sound insulation performance was obtained by increasing the weight.

[0003]

However, with the recent increasing demand for noise reduction, the weight floor impact sound insulation performance is improved by one rank from the conventional L-70 grade.
It becomes necessary to set the grade to -65, and therefore, it is strongly desired that the floor panel also has excellent vibration damping performance and sound insulation performance.

The present invention is based on the fact that a heavy sound insulation plate is supported by interposing an elastic body between the upper and lower holding pieces of the mounting fitting arranged on the floor panel base body, and in addition to the increase in weight, the elasticity is increased. It is an object of the present invention to provide a vibration-isolating floor panel that can utilize the vibration absorbing properties of the body, reduce vibrations and the fixed propagating sound generated therewith, and improve vibration-damping performance and sound insulation performance.

[0005]

In order to achieve the above-mentioned object, a vibration-isolating floor panel of the present invention comprises a floor panel base body comprising a plurality of parallel joists and a floor base plate attached to the upper surface thereof.
A vertical piece that extends vertically, an upper piece that is provided at the upper end and abuts the lower surface of the floor base plate, and a plate-shaped sound insulation plate that is heavy and is arranged between the joists, via an elastic body. And a plurality of mounting brackets having a sandwiching piece.

[0006]

Operation: A mounting bracket having, on the floor panel base body, an upper piece that abuts the lower surface of the floor base plate, and an upper and lower sandwiching piece that supports the sound insulation plate disposed between the heavy and joists through the elastic body. Distribute. Therefore, the sound insulation plate can function as a mass, the elastic body can absorb vibration, and can function as a vibration insulating material, and vibration and fixed propagating sound generated therewith can be reduced, and vibration isolation performance and sound insulation performance can be improved.

As the heavy and plate-like sound insulation plate, various plate materials such as a concrete plate and a metal plate can be used in addition to the gypsum board, and the elastic body is made of so-called anti-vibration rubber, metal or synthetic resin. A material having various vibration damping and vibration absorbing properties such as a coil spring and a leaf spring can be adopted, and various shapes such as a rectangular parallelepiped shape, a V shape and an X shape can be used.

According to the second aspect of the present invention, when the horizontal lower piece of the mounting member is supported by abutting against the receiving member spanning the bottom surface of the joist member, the mounting member is efficiently and efficiently floored, for example, in a factory. It can be fixed to the panel base and productivity can be improved, and the rigidity of the entire vibration-isolating floor panel can be improved by the receiving material, so that the vibration-proof performance and sound insulation performance can be further enhanced.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. 1 to 10, a vibration damping floor panel 1 of the present invention has a heavy and plate-shaped sound insulating plate 4 attached thereto by using a plurality of attachment fittings 3 arranged on a floor panel base 2.

As shown in FIGS. 1 to 6, the floor panel base 2 has, for example, four joists 5 ... Arranged in parallel with a rectangular cross section and equidistantly, and a flat surface attached to the upper surface thereof. The floor base plate 6 made of a rectangular particle board.

Further, as shown in FIGS. 7 to 10, the mounting member 3 is provided with a standing piece 7 which is slightly inclined and extends vertically in order to enhance the vibration absorption property, and the center of the upper end portion and the lower end portion thereof are cut and bent, respectively. By horizontally projecting, the upper and lower lower ends of the standing piece 7 project from the standing piece 7, and the lower sandwiching pieces 9, 10 are provided.
And a pair of upper pieces 11, 11 projecting from the upper end of the standing piece 7 and above both sides of the upper sandwiching piece 9, and horizontally projecting from the lower end of the standing piece 7 and below both sides of the lower sandwiching piece 10. And a base body composed of a pair of lower pieces 12, 12.

It should be noted that elastic bodies 13, 13 made of a rectangular parallelepiped vibration-proof rubber made of natural rubber or synthetic rubber are vertically opposed to each other on the respective facing surfaces of the upper and lower holding pieces 9, 10. It has a gap G and is fixed by an adhesive, for example.

Further, between the fittings 3 and 3, both sides are fitted and fitted in the gaps G and G, respectively, and are made of gypsum board having a size that can be arranged between the adjacent joists 5 and 5. As the quality of the sound insulation plate 4 is bridged, as shown in FIG.
The damper member 16 shown in FIG. 10 is formed. A plurality of the mounting brackets 3 are arranged facing each other on both sides of the sound insulating plate 4 at appropriate intervals. The resonance frequency of the damper member 16 is adjusted to 50 to 55 Hz which is the resonance frequency of the floor.

The damper member 16 is inserted between the adjacent joist members 5 and 5, as shown in FIGS.
1 is brought into contact with the lower surface of the floor base plate 6, and the lower surface of the lower piece 12 of the mounting bracket 3 has a rectangular cross section which is bridged at a right angle to the joist material 5 by using nails or the like on the lower surface. The damper member 16 is attached to the floor panel base body 2 by abutting on the upper surface of the wooden receiving member 14.

On both edges of the lower piece 12, the receiving members 14 are positioned so that the hanging portions 19 and 19 of a small height prevent them from being displaced.
Is erected.

As described above, since the damper member 16 including the sound insulation plate 4 and the elastic body 13 is attached to the floor panel base body 2, the vibration is higher than that of the conventional one in which the sound insulation plate is simply attached to the lower surface of the floor base plate. The solid propagating sound generated therewith can be reduced, and the vibration isolation performance and sound insulation performance thereof can be improved, and the mounting bracket 3 is provided between the upper piece 11 and the upper sandwiching piece 9 and the lower piece 12. Since the gap is provided between the lower holding piece 10 and the lower holding piece 10, the bending of the standing piece 7 can effectively absorb the vibration.

The anti-vibration floor panel 1 is supported by horizontal side rails 20, 20 bolted to the facing surfaces of the parallel lattice beams R, R on the floor, as shown in FIG. 11, for example. , Is attached to the side rails 20 and 20 by using an appropriate mounting bracket (not shown) to form a floor above the floor.

As the mounting member 3, as shown in FIGS. 12 and 13, it is also possible to use one in which the standing piece 7 is bent in a V shape at the intermediate position P in the height direction to further enhance the vibration absorption. .

Further, since the mounting bracket 3 abuts the upper piece 11 on the lower surface of the floor base plate 6 and supports and fixes the lower piece 12 by the receiving member 14, the variation in the height of the lower end of the joist 5 is absorbed. The mounting bracket 3 can be fixed with good stability.

The mounting bracket 3 is, as shown in FIG.
It is also possible to bring the upper piece 11 into contact with the lower surface of the floor base plate 6 without using the receiving material 14 and fix it to the joist 5 of the floor panel base body 2 by using a nail or an adhesive.

[0021]

[Specific example] Width W1 is 898 mm, height W2 is 3670 mm
A floor panel substrate 2 having a floor base plate 6 made of particle board having a thickness T of 15 mm (shown in FIG. 2) (shown in FIG. 14) and using a mounting bracket 3 shown in FIG.
Between the joists 5 and 5, the thickness t is 20 mm and the total weight is 45 kgf.
The sound insulation plate 4 made of gypsum board with a JIS A hardness of 57
As shown in FIG. 11, the vibration-isolated floor panel 1 sandwiched between the elastic bodies 13 made of natural rubber having a dynamic spring constant of 141 to 63 ° and a dynamic spring constant of 141 kg / cm is arranged on the upper floor of the lattice beam R. , R
A floor impact sound level (dB) at each A characteristic octave band center frequency (Hz) was measured based on the JIS A1417 standard (Example).

The measurement results are plotted in a graph (FIG. 16) in which the horizontal axis represents the octave band center frequency and the vertical axis represents the floor impact sound level, which is indicated by a solid line. In addition, in FIG. 16, the measurement result when the floor panel p shown in FIG. 15 is used as Comparative Example 1 is also shown by a broken line.

Referring to FIG. 16, the vibration-isolated floor panel 1 of the present invention.
The measurement result of Comparative Example 1 was obtained especially in the low frequency range.
It is found that the vibration-isolated floor panel 1 is closer to the L-65 grade curve than that of the above-mentioned one, and the vibration-proof floor panel 1 has a heavy floor impact sound insulation performance L-65.
It was confirmed that the grade was satisfied.

The vibration damping performance of a floor panel (Comparative Example 2) composed only of joists and a floor base plate, and FIG.
The vibration damping performance of the anti-vibration floor panel 1 shown in FIG. 4 was measured, and the results are shown in FIGS. 18 and 17, respectively. According to FIGS. 17 and 18, it was found that the vibration damping floor panel 1 of the present invention achieves vibration damping (vibration insulation) earlier than that of Comparative Example 2.

[0025]

As described above, the vibration-isolated floor panel of the present invention supports, on the floor panel base body, the upper piece that abuts the lower surface of the floor base plate and the heavy and plate-shaped sound insulating plate through the elastic body. Since the mounting bracket having the upper and lower clamping pieces is arranged, the vibration isolation performance and the sound insulation performance can be improved by the vibration insulation of the elastic body and the mass law of the heavy sound insulation plate.

Further, in the invention of claim 2, when the lower piece of the fitting is brought into contact with and supported by the receiving material laid on the bottom surface of the joist material, the mounting material provides a good quality and convenience for the mounting fitting. Not only can it be fixed, the productivity of the vibration-isolating floor panel can be improved, but the receiving material also helps strengthen the rigidity of the vibration-isolating floor panel as a whole, thus improving the sound performance.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a plan view thereof.

FIG. 3 is a sectional view taken along line XX of FIG.

FIG. 4 is a sectional view taken along line YY.

FIG. 5 is a partial cross-sectional view showing an enlarged main part of the present invention.

FIG. 6 is an exploded cross-sectional view of FIG.

FIG. 7 is a side view illustrating a mounting bracket.

FIG. 8 is a front view thereof.

FIG. 9 is a bottom view thereof.

FIG. 10 is a partially exploded perspective view showing a main part of the present invention.

FIG. 11 is a side view illustrating a mounting state of the anti-vibration floor panel of the present invention.

FIG. 12 is a sectional view showing another embodiment of the present invention.

FIG. 13 is a partial cross-sectional view showing an enlarged main part thereof.

FIG. 14 is a partial cross-sectional view showing another embodiment of the present invention.

FIG. 15 is a partial cross-sectional view for explaining a conventional technique.

FIG. 16 is a graph showing measurement results of floor impact sound level.

FIG. 17 is a diagram showing the vibration damping action of the vibration-isolating floor panel of the present invention.

FIG. 18 is a diagram showing the vibration damping action of the floor panel of the comparative example.

[Explanation of symbols]

 2 Floor panel base 3 Mounting bracket 4 Sound insulation plate 5 Joist 6 Floor base plate 7 Standing piece 9 Upper holding piece 10 Lower holding piece 11 Upper piece 12 Lower piece 13 Elastic body 14 Receiving material

Claims (2)

[Claims] 1. A floor panel base body comprising a plurality of parallel joists and a floor base plate attached to the upper surface of the floor panel base, a vertical piece extending vertically, and abutting against the lower surface of the floor base plate provided at the upper end thereof. An anti-vibration floor panel comprising a plurality of mounting brackets each having one piece, a heavy-duty plate-like sound insulating plate disposed between the joist members through an elastic body, and a lower sandwiching piece. 2. The mounting fitting has a horizontal lower piece at the lower end of the standing piece, and the lower piece is supported by abutting against a receiving material bridged over the bottom surface of the joist material. The anti-vibration floor panel according to claim 1.