JPH03119253A - Lightweight sound insulation floor - Google Patents

Abstract

PURPOSE:To obtain a floor having excellent sound insulation capacity by laying a deck plate between an upper layer consisting of mosaic, particle boards, etc., and a lower layer laminating elastic members on materials having a big transmission loss, and laying it under the lower layer. CONSTITUTION:Mosaic direct floors 22 are laminated on particle boards 21 to form an upper layer 15. After that, elastic members 24 such as glass wool, etc., are laminated on materials 23 having a big transmission loss such as foamable metal, etc., to form a lower layer 16. The deck plate 17 having a plate surface 19a and joist shaped projection 19b is laid between the upper layer 15 and lower layer 16 to form an air circulation layer 18. In addition, the plate surface 19a of the deck plate 17 is brought into contact with the surface of the lower layer 16, and another deck plate 25 is brought into contact with the bottom of the lower layer 16. According to the constitution, air- vibration with sound can be cut off.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a lightweight sound insulating floor that can absorb and insulate sound such as impact sound very efficiently.

<Prior art> Conventional sound insulating floors for insulating this type of weight impact noise or the sound of children jumping are a heavy weight rigid floor 1 with a thick slab as shown in Fig. 4, and a zigzag floor as shown in Fig. 5. A synthetic slab floor 4 constructed by pouring concrete 3 onto a folded deck plate steel plate 2, or the 6th floor! As shown in FIG. 4, a wet floating floor 8 is formed by laying glass wool 6 on a slab 5 and concrete 7 is poured on top of this glass wool 6, or as shown in FIG. A joist with a laminated floor standing up on vibration-proof rubber 11! 2
Vibration-proof mounting floors 13 and the like configured with support are known, and these techniques have been implemented as necessary.

<Problems to be Solved by the Invention> Among the above-mentioned technologies, both the 1-weight rigid floor 1 and the synthetic slab floor 4 must have a thickness of 120 to 200 mm, which increases the weight and .

As the thickness increases, there is a problem in that the height of the floor must be calculated and designed in advance.Furthermore, the latter wet floating floor 8 and vibration isolation floor 13 have a small sound insulation effect and are expensive as the work is complicated. There were problems such as getting high.

The present invention relates to a completely new technology developed in view of the above-mentioned conventional problems, and particularly aims to provide a light-weight sound-insulating floor with extremely excellent sound-insulating performance.

Means for Solving the Problems> The present invention is a technology that fundamentally improves the various conventional problems described above, and its gist is that the upper layer made of parquet, particle board, etc. In a floor consisting of a material with a high loss and a lower layer made by laminating an elastic material such as glass wool, a deck plate having a number of through holes at predetermined positions is placed between the upper layer and the lower layer so that its flat plate surface is the top surface of the lower layer. An air circulation layer is provided between the two layers so as to be in contact with the lower layer, and another deck plate is laminated on the lower surface of the lower layer so that its flat plate surface is in contact with the lower surface of the lower layer.

Effect> As described above, in the sound insulating floor according to the present invention, since the deck plate is interposed between the upper layer and the lower layer, the air is removed between both layers by the action of the protrusion provided on the flat plate surface and one side of the deck plate. The air circulation layer can be easily and automatically formed, and since such an air circulation layer is formed in the middle of the floor, the air vibrations accompanying the sound generated on the floor are released by this air circulation layer, and the sound energy is absorbed. can be attenuated.

In addition, since the flat plate surface of a deck plate with many through holes is laminated on the upper surface of the lower elastic layer, air vibrations caused by sound transmitted to the elastic layer are absorbed by the flat plate surface and protruding parts of the deck plate. Since the protruding part of the deck plate is also provided with a through hole, the vibrations of the air caused by the sound are passed through this protruding part and the air is attenuated. It can be released to the outside more efficiently than the distribution layer.

Furthermore, since a material with high transmission loss, such as foamed metal, is laminated on the lower surface of the lower layer, it is possible to absorb and efficiently attenuate sounds such as voices generated in the upper layer.

Furthermore, since a deck plate is laminated on the bottom surface of the lower layer, this allows the floor to be stably attached to structural materials such as beams, and also prevents sound transmitted to the lower layer from escaping downward. .

When the deck plate in the above embodiment is made of a vibration-damping steel plate, it is possible to more efficiently block and attenuate air vibrations caused by sound generation.

<Example> One example of the present invention will be specifically described with reference to the drawings.
The figure is a sectional view of the sound insulating floor according to the present invention, FIG. 2 is a perspective view showing an example of a deck plate used for this sound insulating floor, and FIG.
The figure is an explanatory cross-sectional view of the sound insulating floor shown in FIG. 1 installed in a building.

In FIG. 1, 14 is a sound insulating floor according to the present invention,
An air circulation layer 18 is formed between the upper layer 15 and the lower layer 1B by interposing a deck plate 17 particularly as shown in FIG.

The deck plate 17 is composed of a substantially planar flat plate surface 19a and a joist-like projection 19b protruding from one side of the flat plate surface 19a at a predetermined interval. When interposed between the lower layer te and the lower layer te, the air circulation layer 18 is automatically formed by the action of the joist-like protrusion 19b.

In addition, a large number of ventilation holes 20 are bored in each of the flat plate surface 113a and the joist-shaped protrusion 1eb in this deck plate 17,
Further, the flat plate surface 113a of the deck plate 17 is in contact with the upper surface of the lower R1B.

Therefore, vibrations within the lower layer 16 are transmitted through the ventilation holes 20 of the flat plate surface 19a.
The vibrations released into the air circulation layer 18 can be released into the air circulation layer 18 through the joist-like protrusion 19.
It is configured so that it can escape to the outside through the ventilation hole 20 of b.

The upper layer 15 is constructed by integrally laminating a parquet direct floor 22 on a verticle board 21. The lower layer 16 is constructed by laminating an elastic material 24 such as glass wool or plastic foam on a material 23 having a large transmission loss such as foamed metal or a solidified material such as LASTA (trade name). ing.

Next, reference numeral 25 denotes a deck plate attached to the beam 2e via screws 26a, and contrary to the deck plate 17, its flat plate surface 25a faces upward, and the joist-like protrusion 2
5b protrudes downward, so that the flat plate surface 25a is in contact with the lower surface of the material 23 having a large transmission loss.Furthermore, the deck plate 25 is not provided with the above-mentioned ventilation hole 20.

Furthermore, the above-mentioned deck play) 1? , 25 are both 2
It is composed of damping steel plates with a damping film (viscoelastic resin) sandwiched between them.

When installing the lightweight sound insulating floor according to the present invention in a building, as shown in FIG. A gap fi2 provided inside the outer peripheral wall 27
8 and the air circulation layer 1B of the sound insulating floor 14, the outer peripheral edge of the sound insulating floor H can be attached and fixed within the outer peripheral wall 27. In addition, when the partition wall 2B having the void layer 30 inside is erected on the sound insulation floor 14 of the present invention, the upper layer 15 of the sound insulation floor 14 to which the lower end of the partition wall 29 is joined
The partition wall 29 can be attached and fixed to the sound insulation floor 14 by cutting it out to a predetermined width and thereby communicating the air circulation layer 18 of the sound insulation floor 14 and the void layer 30 of the partition wall 28.

When the sound insulating floor 14 according to the present invention is installed in a building as described above, the air circulation layer 18 of the sound insulating floor 14 is communicated with the void layer 28 of the outer peripheral wall 27 of the building or the void layer 30 of the partition wall 28. Therefore, the air inside the sound insulating floor 14 can be released into the outer peripheral wall 27 and the partition wall 29, thereby releasing a part of the sound energy generated in the upper layer 15 of the sound insulating floor 14 to the outside and discharging it into the lower layer. The energy applied to 1B can be attenuated and made smaller.

Plane plate H1a of deck play) 17 in the above embodiment
The inner diameter and number of ventilation holes 20 formed in the joist-shaped protrusion 18b can be increased or decreased as necessary, depending on the overall strength and the like.

<Effects of the Invention> Since the lightweight sound insulating floor according to the present invention has the structure and function as described above, the entire floor can be constructed to be extremely light and relatively thin, thereby reducing the size of the unit and the foundation and reducing the overall size. Construction costs can be reduced.

In addition, an air circulation layer is provided in the middle of the floor, and ventilation holes are bored in the deck plate that is interposed in this air circulation layer, so that the air pressure associated with the sound generated on the floor can escape from this air circulation layer to the outside. It can be attenuated. Moreover, since a layer made of a material with a large transmission loss is provided in the lower layer, sounds such as voices can be efficiently absorbed by this layer. Furthermore, since the lower layer is placed on a deck plate, the floor can be easily attached to beams etc. in a stable state, and it also has features such as being able to prevent sound from leaking outside. It is.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a sound insulation floor according to the present invention, and FIG. 2 is a perspective view showing an example of a deck plate used for this sound insulation floor.
FIG. 3 is an explanatory cross-sectional view of the sound insulating floor shown in FIG. 1 built into a building, and FIGS. 4 to 7 are explanatory diagrams showing examples of conventional sound insulating floors, respectively. 1 is 11 rigid floor, 2 is steel plate, 3.7 is concrete, 4
is a synthetic slab, 5 is a slab, 6 is glass wool, 8 is a wet floating floor, 9 is waste board, 10 is plywood, 11 is anti-vibration rubber, 1
2 is the joist, 13 is the vibration-proof floor, 14 is the sound-insulating floor of the present application, 15 is the upper layer, 1B is the lower layer, 17.25 is the deck plate, 1
B is an air circulation layer, 18a is a flat plate surface, 19b is a joist-like protrusion, 20 is a ventilation hole, 21 is a particle board, 22 is a direct floor, 123 is a material with large permeation loss, 24
is a resilient material, 2B is a beam, 2fla is a screw, 27 is an outer peripheral wall,
28 and 30 are void layers, and 29 is a partition wall.

Claims (1)

[Claims] A deck plate with a large number of holes at predetermined positions, with a floor consisting of an upper layer made of parquet, verticle board, etc., and a lower layer made of an elastic material such as glass wool laminated on a material with high permeation loss such as foamed metal. is interposed between the upper layer and the lower layer so that its flat plate surface is in contact with the upper surface of the lower layer to provide an air circulation layer between the two layers, and further, another deck plate is placed on the lower surface of the lower layer so that its flat plate surface is in contact with the lower surface of the lower layer. A lightweight sound insulating floor characterized by being constructed by laminating them so that they touch each other.