JPH09317145A - Soundproof construction of floor - Google Patents

Abstract

PROBLEM TO BE SOLVED: To increase the soundproof effect by making it possible to firmly mount a damping plate even if it is a different kind of material and, at the same time, to make it possible to obtain the soundproof effect more effectively by using construction to damp at sites of floor joists as floor holding materials. SOLUTION: Soundproof construction of a floor is so constructed that a floor face material 3 is fixed to a beam 1 and floor holding materials 2 of a floor structural body consisting of a plurality of floor holding materials 2 constructed on the beam 1. Then, notch sections 4 are provided to intermediate sites of the height in the floor holding materials 2, a dynamic damping plate 5 is fixed to the notch sections 4, and by the constitution, the dynamic damping plate 5 is mounted firmly to the floor holding materials 2 and, at the same time, the vibration of the floor holding materials 2 is resonated with the vibration caused by bending deformation of the dynamic damping plate 5 and is lowered.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a floor soundproofing structure, and is particularly suitable for use in reducing vibration of a floor structure having a floor support installed between beams to support a floor covering. It relates to the soundproof structure of the floor.

[0002]

2. Description of the Related Art Conventionally, as this type, the one disclosed in Japanese Patent Publication No. 7-49685 is known.

That is, in the above-mentioned publication, a rectangular outer beam and a plurality of beamlets erected on the beam are welded to each other to form a lattice, and the beam is attached to the floor surface. A floor joist serving as a floor receiving material for supporting the timber is fixed by nails, an adhesive or the like to form a floor structure.

Further, the damping plates are arranged between the floor joists of the floor structure in such a manner that both ends are placed on the beam, and both ends of the damping plate are arranged as described above. It is a soundproof structure that is fixed to the beam by nails or adhesive.

That is, the vibrations generated in the floor structure due to the heavy impact load are bent at both ends supported between the beams (in the embodiment, beamlets installed between the beams) arranged in parallel in the floor structure. It is adapted to be absorbed and damped by the bending vibration of the damping plate having viscosity and elasticity against deformation.

[0006]

However, in the above-mentioned prior art, since the damping plate is fixed to the beam via both ends of the beam with nails, an adhesive, etc., the beam made of iron and the particle board, Since it is a different material from the vibration damping plate such as hard wood chip cement board and gypsum board, it cannot be attached completely rigidly, and there is a problem that the vibration damping effect is reduced accordingly.

Further, since the vibration caused by the heavy impact load generated on the floor surface material is suppressed by the beam (or the small beam) transmitted through the floor joist as the floor receiving material. The vibration control structure had room for improvement.

The present invention has been made in view of the above-mentioned circumstances. Even if different materials are used, the damping plate can be firmly attached to enhance the soundproof effect, and at the portion of the floor joist as the floor receiving material. It is an object of the present invention to provide a floor soundproofing structure that can more effectively obtain a soundproofing effect as a vibration damping structure.

[0009]

In order to achieve the above object, the invention according to claim 1 provides the floor support of a floor structure comprising a beam and a plurality of floor supports installed on the beam, A soundproof structure for a floor, in which a floor material is fixed, wherein a notch or a mortise is provided at an intermediate portion in the height direction of the floor support, and a dynamic vibration plate is fixed to the notch or the mortise. Characterize.

The invention according to claim 2 is characterized in that a weight is provided on the dynamic vibration absorbing plate.

Further, the invention according to claim 3 is characterized in that the dynamic vibration absorbing plate is provided in two or more layers.

[0012]

According to the first aspect of the present invention, since the notch or mortise is provided at the middle portion in the height direction of the floor support, and the dynamic vibration proof plate is fixed to the notch or mortise, the dynamic vibration proof plate is solid. Since it is attached to the floor bearing member, the vibration of the floor bearing member is reduced by resonating with the vibration due to the bending deformation of the dynamic vibration absorbing plate.

Further, according to the second aspect of the invention, since the dynamic vibration absorbing plate is provided with the weight, the bending deformation of the dynamic vibration absorbing plate becomes large, and the vibration of the floor support is resonated with the vibration of the dynamic vibration absorbing plate. Further reduce.

Further, according to the third aspect of the present invention, since two or more layers of dynamic vibration absorbing plates are provided, in the vibration of the floor receiving material, the resonance action with the vibration due to the bending deformation of the dynamic vibration absorbing plate becomes more remarkable. It is further reduced.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the first embodiment. In FIG. 1, a plurality of floor joists 2 as floor receiving materials are installed between the lower beams 1 and the floor joists 2 are provided with floors. The face material 3 is placed and attached by nails, an adhesive or the like to form the floor structure A.

A notch 4 is formed at an intermediate portion of the floor joist 2 in the height direction. Both ends of the dynamic vibration absorbing plate 5 are engaged with the notch 4, and both ends thereof are notched by the adhesive 6. It is fixed to 4.

That is, the dynamic vibration absorbing plate 5 is firmly attached between the floor joists 2.

Here, the dynamic vibration absorbing plate 5 is a particle board, a hard wood chip cement plate, a gypsum board or an OSB.
(Oriented strand board: laminated wood) or the like is used, but a particle board having a thickness of about 15 mm and an OSB having a thickness of about 15 to 20 mm are suitable.
Incidentally, in FIG. 1, reference numeral 15 is a weight provided on the dynamic vibration-absorbing plate 5.

In the first embodiment as described above, since the notch 4 is provided at the middle portion in the height direction of the floor joist 2 as the floor receiving material, and the dynamic vibration absorbing plate 5 is fixed to the notch 4, the dynamic vibration absorption is performed. The plate 5 is firmly attached to the floor joist 2, and the vibration of the floor joist 2 is reduced by resonating with the vibration due to the bending deformation of the dynamic vibration absorbing board 5.

Since the dynamic vibration absorbing plate 5 is provided with the weight 15, the bending deformation of the dynamic vibration absorbing plate 5 becomes large, and the vibration of the floor joist 2 is resonated with the vibration of the dynamic vibration absorbing plate 5 to be further reduced. .

Here, the resonance frequency depends on the surface rigidity, span and weight (including weight) of the dynamic vibration absorbing plate 5, but the floor joist 2
If is in 500mm pitch, when it is desired to absorb vibration of 50～60H _Z is a particle board having a thickness of 20mm attached a weight 15 of about 4.5Kg dynamic vibration absorber 5 is effective.

As described above, in the first embodiment, since the vibration of the floor joist 2 is reduced by the dynamic vibration absorbing plate 5, a sufficient soundproof effect can be obtained, and the weight 15 makes the soundproof effect more remarkable. It can be anything.

FIG. 2 shows the second embodiment of the present invention.

In the second embodiment, the dynamic vibration absorbing plate 5 of the first embodiment is provided in two layers, and the other aspects are the same as those of the first embodiment.

That is, 2 of the middle part in the height direction of the floor joist 2
Notches 4 are formed in the respective places, and both ends of the two dynamic vibration absorbing plates 5 are engaged with the two notches 4 and both ends thereof are fixed to the notches 4 by the adhesive 6. .

Therefore, since the dynamic vibration absorbing plate 5 is provided in two layers, in the vibration of the floor joist 2, the resonance action with the vibration due to the bending deformation of the dynamic vibration absorbing plate 5 becomes more remarkable and further reduced.

In the second embodiment, two layers of dynamic vibration absorbing plates are provided, but in the present invention, three or more layers may be provided.

3 and 4 show a third embodiment of the present invention.

In the third embodiment, the same components as those in the first embodiment are designated by the same reference numerals and only the points different from the first embodiment will be described.

That is, a mortise 9 is formed at an intermediate portion in the height direction of the floor joist 8, and the dynamic vibration absorbing plate 1 is formed in the mortise 9.
0 is inserted and engaged, whereby the dynamic vibration-absorbing plate 10 is firmly fixed to the floor joist 8.

Also in the third embodiment as described above, since the mortise 9 is provided at an intermediate portion in the height direction of the floor joist 8 as the floor receiving material, and the dynamic vibration absorbing plate 10 is fixed to the mortise 9.
The dynamic vibration-damping plate 10 is firmly attached to the floor joist 8, and the vibration of the floor joist 8 is reduced by resonating with the vibration due to the bending deformation of the dynamic vibration-damping plate 10.

When the dynamic vibration absorbing plate is attached to the floor joist, FIG. 5 (example in which the dynamic vibration absorbing plate 12 is attached to the floor joist 11) and FIG. 6 (example in which the dynamic vibration absorbing plate 13 is attached to the floor joist 11) As shown, it is effective that the position of the dynamic vibration-damping plate damps the floor joists at a quarter of the entire length on the girder side (lateral direction in the figure).

Further, in the above-mentioned embodiment, the floor joist as the floor receiving material is directly mounted on the beam (not the small beam), and the dynamic vibration absorbing material is provided on the floor joist. A floor support that has been described in the prior art, in which a rectangular outer beam and a plurality of beamlets erected on this beam are welded and formed into a grid shape to receive a floor material on the beam. Of course, the present invention can be applied to a floor structure having a floor joist as a material fixed with nails, an adhesive, or the like.

[0035]

As described above, according to the invention of claim 1, a notch or a mortise is provided at an intermediate portion in the height direction of the floor support, and the dynamic vibration absorbing plate is fixed to the notch or the mortise. Therefore, the dynamic vibration absorbing plate is firmly attached to the floor receiving material, and the vibration of the floor receiving material is reduced by resonating with the vibration due to the bending deformation of the dynamic vibration absorbing plate. Thereby, a remarkable soundproof effect can be obtained.

Further, according to the second aspect of the present invention, since the dynamic vibration absorbing plate is provided with the weight, the bending deformation of the dynamic vibration absorbing plate becomes large, and the vibration of the floor support material resonates with the vibration of the dynamic vibration absorbing plate. Is further reduced. That is, a more remarkable soundproof effect can be obtained.

Further, according to the third aspect of the present invention, since two or more layers of the dynamic vibration absorbing plates are provided, in the vibration of the floor support, the resonance action with the vibration due to the bending deformation of the dynamic vibration absorbing plate becomes more remarkable. It is further reduced. That is, a further remarkable soundproofing effect can be obtained.

[Brief description of drawings]

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

FIG. 2 is a front view showing a second embodiment of the present invention.

FIG. 3 is a front view showing a third embodiment of the present invention.

FIG. 4 is a plan view showing a state in which a floor covering is taken out in a third embodiment.

FIG. 5 is a plan view of an arrangement example of the dynamic vibration absorbing material according to the present invention.

FIG. 6 is a plan view of another arrangement example of the dynamic vibration absorbing material.

[Explanation of symbols]

 1 Beam 2, 7, 8, 11 Floor joist (floor receiving material) 3 Floor material 4 Notch 5, 10, 12, 13 Dynamic vibration absorbing material 6 Adhesive 9 Mortise 15 Weight

Claims (3)

[Claims] 1. A soundproof structure for a floor, wherein a floor surface material is fixed to the floor support of a floor structure comprising a beam and a plurality of floor supports installed on the beam. A soundproof structure for a floor, characterized in that a notch or mortise is provided at an intermediate portion in the height direction of the material, and a dynamic vibration absorbing plate is fixed to the notch or mortise. 2. The soundproof structure for a floor according to claim 1, wherein a weight is provided on the dynamic vibration absorbing plate. 3. The floor soundproofing structure according to claim 1, wherein two or more layers of the dynamic vibration absorbing plate are provided.