JP2002188238A - Soundproof floor structure and soundproof floor covering material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the displacement of a floor covering material and reduce a heavyweight impact sound. SOLUTION: A soundproof floor structure 1 is provided with a floor slab 2 and the floor covering material 3 on the floor slab 2, and plural soundproof floor covering materials 6 are disposed between the floor slab 2 and the material 3. The respective materials 6 are separated from each other in a view of the longitudinal section of the structure 1. A space 7 is provided between the respective materials 6, which are composed of only an impact-absorbing material 8. Top and under surfaces 8a and 8b of the material 8 are brought into direct contact with the material 3 and the floor slab 2, respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soundproof floor structure for reducing a heavy floor impact sound of a building, and more particularly, to a soundproof floor structure between a floor slab, which is a floor structure of a building, and a floor base material. The present invention relates to an invention for reducing a heavy floor impact sound by interposing a floor material.

[0002]

2. Description of the Related Art Conventionally, floors of buildings have been directly bonded to a floor slab by directly attaching soundproofing floors, floors provided with floor finishing materials using pick-up materials as base materials, and floor base materials provided by joists with floor base materials. Many floors, such as a double floor and a floor on which a floor is provided, and a floor base is provided by supporting legs, and a floor finishing material is provided thereon.

[0003] An unresolved problem with the sound of building floors is that the method of reducing heavy floor impact noise has not yet been put to practical use.

However, in rigid structures such as RC structures,
There was no solution outside, and there was a particularly strong demand,
A method of increasing the thickness of the floor slab has been adopted, and a thickness of 200 mm is now common.

[0005] This method of increasing the thickness of the floor slab is a high-rise apartment house and the like, so the floor weight of each floor becomes very heavy.
Columns and beams also need to be large, which inevitably increases costs.

Further, when the floor slab thickness is increased by 50 mm per floor from the conventional floor thickness, the eave height naturally increases, and there is a drawback that a situation arises where the floor number must be reduced from the original floor number due to height restrictions and the like. Was.

On the other hand, in a flexible structure such as a detached house or a low-rise apartment building, if an attempt is made to reduce the heavy floor impact sound by increasing the floor thickness, the cost is generally increased, including increasing the rigidity of columns and beams. It is not a situation that can be changed, and no good method is known at present.

[0008] In recent years, users have more rigorously checked the cost and the performance of the entire house, and even if it is possible to reduce the heavy floor impact sound, it is allowed for the improvement. The cost is very low.

[0009]

SUMMARY OF THE INVENTION It is an object of the present invention to provide a sound-insulating floor structure capable of preventing displacement of a floor material and reducing a heavy floor impact sound.

[0010]

According to the present invention, there is provided a soundproof floor structure comprising a floor slab and a floor material on the floor slab, wherein a plurality of slabs are provided between the floor slab and the floor material. Soundproof flooring is arranged, and when the soundproofing floor structure is viewed in a longitudinal section, the soundproofing flooring materials are separated from each other, and a space is provided between the soundproofing flooring materials. A soundproof floor structure according to the present invention, wherein the soundproof floor material is made of only the shock absorbing material, and the upper surface and the lower surface of the shock absorber are in direct contact with the floor material and the floor slab, respectively.

The present invention also provides a soundproof floor structure comprising a floor slab and a floor material on the floor slab, wherein a plurality of soundproof floor materials are provided between the floor slab and the floor material. Are arranged, when the sound-insulating floor structure is viewed in a longitudinal section, the sound-insulating floors are separated from each other, a space is provided between the sound-insulating floors, and the sound-insulating floors are It is provided with a shock absorbing material, only one of the upper surface and the lower surface of the shock absorbing material is directly in contact with the floor material or the floor slab, and the upper surface or the lower surface of the shock absorbing material and the floor material or the floor material A support member for supporting the shock absorbing member is provided between the floor slab and the support member, and the support member is at least one selected from the group consisting of a wood material, a paper material, an inorganic material, a plastic fiber, rubber, and a metal. The support material is made of a sheet, a sheet, a film, or a sheet with ribs. , Cross uneven, consisting of at least one shape selected from the group consisting of honeycomb and cardboard-like, said support member is fixed to the flooring or the deck, but according to the sound-insulating floor structure.

Further, the present invention is a soundproofing floor material disposed between a floor slab and a flooring material on the flooring slab, wherein the soundproofing flooring material has an impact absorbing material, Is a viscoelastic body formed of rubber or plastic, an internal space is provided in the shock absorbing material, a gas or liquid is sealed in the internal space, and the plurality of soundproof floor materials are A soundproof floor structure is formed between the floor slab and the floor material, and when the soundproof floor structure is viewed in a longitudinal section, the soundproof floor materials are separated from each other, and between the soundproof floor materials. The present invention relates to a soundproof flooring material in which a space is provided and at least one of an upper surface and a lower surface of the shock absorbing material directly contacts the floor material or the floor slab.

The inventor has studied a structure for absorbing and relaxing the exciting force of the floor impact source. At that time, the present inventor has focused on reducing the floor impact sound with a versatile and low-cost one, and within the current man-hours in construction. In particular, for heavy floor impact noise, in detached houses and low-rise apartments,
Able to clear the L H _-55, in the high-rise apartment, slab thickness is so different by the property, was committed to 2 rank improvement from the current deck alone.

[0014] Regardless of a detached house or a high-rise house, the light floor impact sound is to clear _LL- 50 without using soundproofing floor material.

As a result, the present inventor has proposed that a plurality of shock absorbing materials as soundproofing floor materials be horizontally dispersed and arranged between a floor material including a floor base material and a floor finishing material and a floor slab. Thus, the present inventors have found that the heavy floor impact noise is significantly reduced, and have reached the present invention.

According to the present invention, when the flooring material is directly subjected to impact deformation, the floor material is supported by a plurality of dispersed shock absorbing materials, whereby the displacement of the flooring material is suppressed, and at the same time, each of the shock absorbing materials is supported by the flooring material. During this time, each shock absorbing material absorbs the impact of the floor material, and the impact force transmitted to the floor slab is significantly reduced, and as a result, the sound volume emitted from the floor slab decreases.

The present invention is based on this finding, and has a very simple, low-cost and highly versatile structure, which can simultaneously suppress the displacement of the floor material and the heavy floor impact sound. It has a periodical soundproof floor structure.

Further, the present inventor has proposed that the material comprises at least one material selected from the group consisting of wood material, paper material, inorganic material, plastic fiber, rubber and metal, and has a plate shape, a sheet shape, a film shape and a rib shape. A sound-insulating flooring material is produced by providing a supporting material having at least one shape selected from the group consisting of a sheet shape, a cross section uneven shape, a honeycomb shape, and a cardboard shape on only one of the upper surface and the lower surface of the shock absorbing material. By directly contacting the shock absorbing material of this soundproof floor material with the floor material or floor slab and fixing the support material to the floor material or floor slab, a soundproof floor structure with excellent soundproofing performance and excellent workability is obtained. As a result, the present invention has been achieved.

In the present invention, among the shapes of the support material, the term "plate-like" refers to a material whose thickness is relatively smaller than its length and width, regardless of the material. The sheet shape refers to a material having a thickness smaller than that of the plate shape, regardless of the material, regardless of the length and width. The term “film-like” refers to a material having a thickness smaller than that of a sheet, compared to its length and width, regardless of its material. The term “rib-shaped sheet” refers to a shape in which the sheet-like object is bent, and the cross-sectional unevenness is partially present and the bending rigidity is partially increased. The cross-sectional unevenness means that the sheet-like object or the film-like object is bent,
It is a shape whose cross section is regularly repeated in an uneven shape and has directionality in bending rigidity. The honeycomb shape refers to a perforated plate shape having a large number of hollow portions such as hexagons on the same plane, regardless of the material. The corrugated cardboard shape refers to a shape having a hollow portion in the horizontal direction with the above-mentioned sheet-like material or film-like material and a plurality of them being corrugated in cross section and stuck together vertically.

Further, the present inventor has proposed that as a shock absorbing material,
A viscoelastic body made of rubber or plastic is provided with an internal space, and a plurality of gas or liquid sealed in the internal space are arranged separately from each other between the floor slab and the floor material. As a result, it has been found that the floor impact sound is remarkably improved despite the sinking of the flooring material being small, and the present invention has been completed.

According to the sound-insulating floor structure of the present invention, in the floor structure of a building, from a rigid structure represented by a high-rise apartment to a flexible structure represented by a traditional wooden detached house, Heavy floor impact noise can be reduced while suppressing floor displacement.

[0022]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the members constituting the present invention will be described, and the operation thereof will be described. The sound-insulating floor structure of the present invention is a structure in which a plurality of sound-insulating floor materials are arranged between a floor slab, which is a floor structure skeleton of a building, and a floor material formed from a floor finishing material or a floor base material.

(1) Floor Slab The floor slab is the floor structure frame itself, and RC floor slabs, void slabs, waffle slabs, and the like are mainly used in rigid structure buildings. On the other hand, in a detached house or a low-rise apartment house, as the floor slab, an ALC slab, a PC slab, a hollow extruded cement slab, a floor panel in which a joist and a plate material such as plywood or a particle board are combined is used.

In the present invention, the above examples are collectively referred to as floor slabs. These floor slabs are erected between the beams, and it is desirable that a viscoelastic body is interposed between the beams and the floor slab to provide vibration insulation of the floor slab.

(2) Floor Base Material Floor base material is a floor base material laid on a plurality of soundproof floor materials provided on a floor slab, and includes a particle board, a plywood,
Gypsum board, high specific gravity sheet or plate, mixture of paper and hydraulic material, compression-molded and dried plate, honeycomb, hollow extruded cement plate, ALC, etc. are used alone or in combination. Good. At this time, if you use these together,
It is preferable to fix nails or adhesives alone or in combination.
When the floor base material is made only of a wooden material, the weight of the floor base material becomes light. Therefore, when a sound insulation mat is laminated, an effect of improving a heavy floor impact sound is produced.

(3) Floor Finishing Materials The floor finishing materials may be flooring materials, PVC cushion floors, cork tiles, carpets, etc., which are generally used for floor finishing materials, and lightweight floor impact materials such as soundproof floors. You don't need to use a sound-improving product. That is, according to the present invention, not only the heavy floor impact sound but also the light floor impact sound is remarkably reduced.
This is because there is no merit to use.

(4) Floor material The floor material includes the floor base material and the floor finish material, and the bending strength of the portion on the soundproof floor material is determined by the method specified in JIS-A-5908. 0.196 to 98.1 MPa (200
１０００1000 kgf / cm ² , hereinafter 1 kgf / cm ² ≒
(Converted at 0.0981 MPa). This is naturally affected by the length between the ends of the soundproof flooring material. However, when the bending strength of the flooring material is less than 0.196 MPa, the displacement amount upon receiving an impact becomes too large, and the
Is more likely to occur, and the improvement effect becomes worse.
Further, the displacement amount due to the floor load also increases, which is not preferable as a floor material. Conversely, if the flexural strength of the flooring material exceeds 98.1 MPa, the amount of impact deflection of the flooring material on the soundproofing flooring material decreases, and the improvement of the heavy floor impact sound at both 63 Hz and 125 Hz decreases, which is not preferable. It is effective to use materials with low volatilization amounts of chemical substances such as formaldehyde, including floor base materials and floor finish materials.

(5) Shock Absorbing Material The shock absorbing material according to the present invention can be made of at least one material selected from the group consisting of elastic materials and viscoelastic materials. Specific examples of the elastic material include spring steel, hard steel wire, piano wire, oil-tempered wire, stainless steel wire for spring, brass wire, sheep white wire, phosphor bronze wire, beryllium copper wire, and the like. A coil spring, a conical spring, and the like can be given. In particular, when setting the height of the shock absorbing material to be low, it is preferable to use a conical spring that does not protrude from the bottom even if the height is set low.

These elastic elements mainly work as spring elements, and if a soundproof floor material is composed of only the elastic elements, the vibration damping performance is deteriorated. Can be used together with the damping effect. In addition, the following method may be used to deal with the disadvantage that a reaction force is easily generated. 1) Combine with other damping elements. 2) Set lower than the height of the viscoelastic body. 3) A pedestal is provided on the spring, and a viscoelastic body is interposed between the pedestal and the floor base material, floor slab, and support material.

Further, in the case of a conical spring, the problem can be solved by placing a foam or a fibrous material inside the conical spring so as not to receive the contact noise between the spring steels. Also, the tip of the cone spring and the floor slab,
Plastic or rubber may be interposed or a cap may be placed so as not to generate contact noise between the floor base material and the support material.

The viscoelastic material is at least one material selected from the group consisting of various rubbers and plastics including thermoplastic elastomers, cured liquid rubbers and the like. Specific examples of rubber include natural rubber, isoprene rubber, styrene butadiene rubber, butadiene rubber, chloroprene rubber, ethylene propylene rubber, acrylonitrile butadiene rubber, butyl rubber, chlorosulfonated polyethylene, chlorinated polyethylene, epichlorohydrin rubber, polynorbornene rubber, and nitrile. Isoprene rubber, acrylic rubber,
Rubber such as urethane rubber, polysulfide rubber, silicon rubber, fluorine rubber, and various kinds of recycled rubber, and a polystyrene-based thermoplastic elastomer (hereinafter abbreviated as TPE) in which the hard segment is polystyrene and the soft segment is polybutadiene, polyisoprene, or hydrogenated polybutadiene. , The hard segment is polyethylene or polypropylene,
Polyolefin-based TPE in which the soft segment is ethylene propylene copolymer rubber, polyvinyl chloride-based TPE in which both the hard segment and the soft segment are polyvinyl chloride, polyurethane resin in which the hard segment is a polyurethane resin, polyurethane-based TPE in which the soft segment is a polyether or polyester, hard Polyester T with polyester segment and polyether soft segment
PE, polyamide TPE in which the hard segment is polyamide, the soft segment is polyether or polyester, and the hard segment is syndiotactic-1,
2-butadiene, atactic soft segment
TPE made into 1,2-butadiene, as a room temperature reactive liquid rubber, polybutadiene, chloroprene, isoprene,
A rubber or the like obtained by a curing reaction of a polymer having two or more terminal reactive groups in a main chain skeleton such as styrene butadiene and acrylonitrile butadiene and a compound having a reactive group reactive with the terminal reactive group. In the present invention, these are broadly defined as rubber.

Plastics are roughly classified into thermoplastic resins, thermosetting resins, and engineering resins. Examples of thermoplastic resins include polyethylene, polypropylene, poly-4-methylpentene-1, ionomer, vinyl chloride, polyvinylidene chloride, polystyrene, and the like. Examples thereof include an acrylonitrile-styrene copolymer, a mixture of polybutadiene to an acrylonitrile-styrene copolymer (ABS resin), a methacrylic resin, polyvinyl alcohol, polyvinyl formal, polyvinyl butyral, an ethylene vinyl acetate copolymer, and cellulose acetate.

As the thermosetting resin, a phenol resin,
Examples include urea melamine resin, epoxy resin, polyurethane resin, unsaturated polyester resin, silicone resin, and the like.

As the engineering resin, polyamide resin, polyacetal resin, polycarbonate resin,
Polyphenylene ether, thermoplastic polyester resin,
Examples thereof include polytetrafluoroethylene, polysulfone, polyetherimide, polyethersulfone, polyetherketone, polyamideimide, and polyimide.

As described above, in the present invention, rubber and plastic are collectively referred to as a viscoelastic body, but such a viscoelastic body may be a solid, a foam, or a combination thereof.

The viscoelastic body is not only an elastic spring element,
Since it also has a vibration damping element derived from viscosity, it can be used in any combination of materials and shapes. These are height,
Optimum conditions can be set by various combinations of hardness, spring constant, coefficient of restitution, and the like.

When the shock absorbing material is composed of only a plurality of viscoelastic materials, it is basically better to increase the soft viscoelastic materials having a low coefficient of restitution and lower the hard viscoelastic materials having a large coefficient of restitution. There is. Further, a plurality of shock absorbers can be used in the direction of receiving an impact force, that is, in the up and down direction.

(6) Soundproofing flooring material The soundproofing flooring material according to the present invention comprises a shock-absorbing material as an essential component, and the shock-absorbing material is at least one selected from the group consisting of an elastic body and a viscoelastic body. Made of different materials.

Alternatively, the sound-insulating flooring material according to the present invention is a product in which a support material is fixed to only one of the upper surface and the lower surface of the shock absorbing material in consideration of workability and transportability at the time of arrangement. .

One soundproofing flooring material may be composed of one shock absorbing material, and one shock absorbing material may be formed in an uneven shape or a plurality of convex portions. The projecting portion may disperse the impact force, and may be a hollow body or a liquid enclosure.

The impact force of the floor material may be reduced by moving the gas or liquid inside the hollow body or the liquid enclosure with the adjacent hollow body or the liquid enclosure through a thin pipe. In the case of a hollow body, it may be communicated with external air.

It should be noted that when using the hollow body or the liquid enclosing body, the liquid enclosing part and the hollow part are displaced to a small extent because the horizontal shaking is likely to occur and the amount of displacement in the vertical direction is likely to be large. Is preferred.

In this case, the hollow portion or the liquid enclosing portion may be formed to have an internal shape for applying a brake so that the viscoelastic body in contact with the surrounding portion does not cause a large displacement, or another type of shock absorbing material may be provided around the portion. Is desirable. In addition, each sound absorbing floor material and each shock absorbing material in one sound insulating floor material are different in at least one of height, hardness and spring characteristics, and constitute a group of a plurality of shock absorbing materials separated from each other. You may.

By constituting the soundproofing flooring material with shock absorbing materials having different heights, when a shock is received, the shock absorbing process is discontinued, that is, the shock is sequentially absorbed from a higher portion. As a result, the impact force can be further reduced, and at the same time, the displacement can be further minimized.

By using a plurality of shock absorbing materials having different hardnesses, it is possible to reduce the reaction force against the impact force. Spring characteristics can be classified into at least one type of characteristics selected from the group consisting of linear springs, progressive springs, degressive springs, and constant load springs. Since the resistance can be applied, a large shock absorbing effect is generated for a small amount of deformation.

The impact absorbing materials used here are not grouped uniformly in a wide area between the floor slab and the floor slab, but as a group of a plurality of vibration absorbing materials separated from each other. The effect of reducing the heavy floor impact noise is higher when the flat floor is scattered at a constant pitch.

As a cause of this, there is a deformation due to the impact of the floor base material (substantially including the floor finishing material), and then the impact is applied to the shock absorbing material, so that the impact energy is further lost. Is considered to be possible.

The length between the ends of the soundproof flooring material is 5 to 70 cm.
It is desirable to set so that it is between. If it is less than 5 cm, the amount of the sound-insulating floor material is excessively large and the cost is increased. In addition, in terms of sound performance, the shock absorption due to the deflection of the floor on the sound-insulating floor material is insufficient, and both 63 Hz and 125 Hz are deteriorated.

Conversely, if it exceeds 70 cm, the amount of deflection of the floor on the soundproof flooring material becomes too large,
It is not preferable because resonance occurs at z and the amount of improvement of the heavy floor impact sound decreases. Also, the amount of deflection due to floor load increases,
Not preferred as a floor.

The length between the ends of the sound-insulating flooring material is such that the arrangement of the sound-insulating flooring materials over the entire floor at the periphery of the floor is densely balanced. The length of 5
You don't have to stick to 70cm.

(7) Support Material The support material is used by being fixed to only one of the upper surface and the lower surface of the shock absorbing material. In particular, when a plurality of shock absorbing materials are used per sound insulating floor material, the spacing between the shock absorbing materials can be set in advance, which is convenient for facilitating the mounting work.

However, in terms of cost, the cost is lowest when not used. Therefore, when soundproofing floor material is to be attached to the floor base material in advance, only the shock absorbing material is attached to the floor base material. May be.

When the supporting material is provided as described above,
Since the handling is easy even at the construction site, the shock-absorbing material with the support material is more convenient for the soundproof flooring material.

Since the support material has a function of integrating a plurality of shock absorbers as a group of shock absorbers, the material may be wood, paper, fiber, inorganic, plastic, rubber, or the like. Metals can be used alone or in combination in the form of a plate, sheet, film, sheet with ribs, uneven cross section, honeycomb, cardboard, etc.

In order to reduce the cost as a general-purpose type, it is desirable to use the product in a length and thickness as small as possible. In the case of insufficient strength, a rib can be provided at a key point or a film can be laminated to be used as a support material.

When supporting materials are provided above and below the shock absorbing material,
When a shock is applied to the upper part of the support, the upper and lower supports are similarly displaced. If a shock is received near the support, the shock absorber under the support near the place where the shock was received will be deformed in the compression direction, but the shock absorber far away will be pulled back by the support Displaced in the direction

In this case, the impact is large, the displacement speed is very fast, a strong peeling force acts on the adhesive interface, and a soundproof flooring material provided with a support material above and below the shock absorbing material causes a long-term poor adhesion.

When the adhesion failure occurs, the component that applies a brake to the impact reaction force does not work, and the heavy floor impact noise is remarkably deteriorated. For this reason, in the present invention, the support member is provided only on one of the upper surface and the lower surface of the shock absorbing material.

It is easier to disperse and absorb shocks if a plurality of shock absorbers are separated from each other in parallel at a predetermined location. However, if the shock absorbers are arranged alone, the work required for construction is extremely increased. It is preferable to provide a support member that serves to combine the shock absorbers into one of the upper and lower sides of the absorber.

When the supporting material is provided on the upper surface of the shock absorbing material, it is preferable that the supporting material on the upper surface be made of a material that is as easily deformable as possible, and the shock absorbing material comes into contact with the floor material or the floor slab by bonding or the like. The portion has a low adhesive strength such as a viscoelastic body, and it is better to consider the adhesive stability against repeated impact.

A commonly used support leg for a double floor is formed of a base plate, a support rod, and a rubber or plastic cushioning material. Such a double-floor support leg is formed by screwing a rubber or plastic cushioning material and a base plate with a support rod,
The height is adjusted.

Such double floor support legs are designed to have a wide arrangement interval and a high rubber hardness in order to reduce the amount of deformation. For this reason, since the rubber has a high elasticity ratio, it separates from the floor slab due to the reaction force received by the impact, and a phenomenon occurs in which the floor slab is hit twice, and the effect of improving the heavy floor impact sound cannot be obtained.

Further, in such a double floor supporting leg, if the rubber hardness is reduced and the viscosity ratio of the rubber is increased, the impact received by one rubber is too large, and the floor deformation becomes extremely large. Therefore, there is no example used as a double floor support leg.

Further, in such a double-floor support leg, the support rod has an extremely narrow diameter compared to the pressure receiving area of the base plate, so that a large force is applied to a small cross section, and the buffer effect of the buffer material is reduced. Does not work well.

This is because the double-floor support leg is originally designed to adjust the height under the floor for the purpose of installing the water supply / drainage pipe in the underfloor space, and is designed only to support the floor. .

According to the present invention, the displacement prevention of the floor material such as the floor base material and the heavy floor impact sound which cannot be performed by the combination of the cushioning material, the support rod, and the base plate, such as the normal double floor support legs, are performed. A plurality of impact absorbing materials or a combination of an impact absorbing material and a supporting material, which can be improved together, are arranged between the floor material and the floor slab with a space therebetween.

(7) Electromagnetic Wave Absorbing Layer The electromagnetic wave absorbing layer is used to protect the space surrounded by the floor slab, floor base material and soundproofing floor material from electromagnetic waves, and has an electromagnetic wave absorbing function. The electromagnetic wave absorbing layer can be formed of at least one kind of radio wave absorbing material selected from the group consisting of a conductive loss material, a radio wave absorbing material, a dielectric loss material and a magnetic loss material.

Such an electromagnetic wave absorbing layer can be provided on any of the upper surface of the floor slab, the lower surface of the floor base material, and the side surface of the soundproof floor material.

The conductive loss material is a material in which, when an electric field is applied to a medium having a finite conductivity, a conductive current flows to convert energy of electromagnetic waves into heat. Specific examples of the conductive loss material include a film, a sheet, a metal foil, and a metal sheet coated with a polymer conductive material such as an indium tin oxide vapor-deposited sheet, polypyrrole, polyacene, polythiophene, and polyaniline.

The dielectric loss material has a combined effect of absorption by dielectric dispersion generated by an applied electric field and absorption by a conductive current. Specific examples of the dielectric loss material include carbon, graphite, and the like.

The magnetic loss material absorbs radio waves by the applied magnetic field. Various ferrites can be exemplified as specific examples of the magnetic loss material.

These radio wave absorbing materials are a single layer type radio wave absorbing material,
It can be used as a two-layer radio wave absorber or a multilayer radio wave absorber, alone or in a laminated or mixed form.

The floor space generated by the present invention is provided with an electromagnetic wave absorbing function, thereby performing EMC measures for electric wiring and optical cable installation sections between the floor slab and the floor base, and preventing malfunctions of devices such as personal computers due to electromagnetic waves. I can do things.

The present invention will be described in further detail with reference to the drawings. FIG. 1 is a sectional view of a soundproof floor structure according to an example of the present invention. FIG. 2 is a plan view of a soundproof flooring according to an example of the present invention. FIG. 3 is an AA cross-sectional view of the soundproof flooring material of FIG. 2.
FIG. 4 is a sectional view taken along line BB of the soundproof flooring material of FIG. 2. FIG.
FIG. 3 is a cross-sectional view of the soundproofing floor material of FIG. 2 taken along the line CC.

FIG. 6 is a side view of another example of the soundproof flooring material of the present invention. FIG. 7 is a plan view of the soundproof flooring material of FIG. 6. FIG. 8 is a plan view showing an arrangement of soundproof floor materials in a soundproof floor structure according to another example of the present invention. FIG. 9 is a cross-sectional view of the soundproof floor structure of FIG. FIG. 10 is a cross-sectional view of an example of a soundproof flooring material according to the present invention. FIG. 11 is a plan view of the soundproof flooring material of FIG. 10.

FIG. 12 is a sectional view of a soundproof floor structure according to still another embodiment of the present invention. FIG. 13 is a side view of a soundproof floor material used in the soundproof floor structure of FIG. FIG. 14 is a rear view of the soundproof flooring material of FIG. 13 viewed from the floor slab.

FIG. 15 is a side view of still another example of the soundproof flooring material according to the present invention. FIG. 16 is a rear view of the soundproof flooring material of FIG. 15 as viewed from the floor slab.

As shown in FIG. 1, the sound-insulating floor structure 1 of the present invention
Is provided with a floor slab 2 and a floor material 3 on the floor slab 2. Flooring 3
Includes a floor base material 4 and a floor finish material 5.

A plurality of sound-insulating floor members 6 are arranged between the floor slab 2 and the floor member 3. When the sound-insulating floor structure 1 is viewed in a longitudinal section, the sound-insulating floor members 6 are separated from each other, and a space 7 is provided between the sound-insulating floor members 6.

Each sound-insulating floor member 6 comprises only the shock absorbing member 8, and the upper surface 8 a and the lower surface 8 b of the shock absorbing member 8 are in direct contact with the floor member 3 and the floor slab 2, respectively.

As shown in FIGS. 2 to 5, the sound-insulating floor member 16 of the present invention is composed of a single shock absorbing member 18,
8 is formed of a viscoelastic body, in which a liquid sealing portion 18 is provided.
a is provided.

In order to prevent the liquid sealing portion 18a from swaying, a viscoelastic body is protruded downward in a semicircular shape at the center of the shock absorbing material, and a lateral sway preventing / large deformation preventing portion 18b is provided.

As shown in FIGS. 6 and 7, a sound-insulating floor member 26 according to another embodiment of the present invention has a plurality of shock absorbing members 28 and 29 and a support member 30.

The shock absorbing member 28 is formed of a viscoelastic material, is disposed at the center of the support member 30, and has a rectangular parallelepiped liquid enclosing portion 28a. There are four liquid enclosing portions 28a, each of which is connected by a thin tube 28b.

The shock absorbing material 29 is formed of a viscoelastic material, and is provided at each of the four corners of the support member 30 as a truncated cone-shaped viscoelastic material.
Are arranged and fixed.

The height of the shock-absorbing material 28 filled with the liquid is set slightly higher than the height of the shock-absorbing material 29 at the four corners. The shock-absorbing material 29 absorbs the shock and simultaneously prevents the liquid-sealed shock-absorbing material 28 from rolling. And also prevents large deformation.

The sound-insulating floor structure 31 of the present invention shown in FIGS.
As shown in the plan view of FIG. 8, on the floor slab 32, a soundproof flooring material 36 is disposed. Space 3 between each soundproof flooring
7a are formed.

As shown in FIG. 9, the sound-insulating floor member 36 has a truncated cone-shaped shock absorber 38 at the center and four truncated cone-shaped shock absorbers 39 formed around the center. Is 5 in total
Individually, one group is formed, and the group is one soundproof floor member 36. A space 37 is provided between the shock absorbers 38 and 39.
b is formed.

Although it cannot be discriminated from FIG. 9, the shock absorbing material at the center of each soundproof floor material has a hardness of 40, and the four shock absorbing materials at the periphery have a hardness of 50.

As shown in FIG. 9, the sound-insulating floor member 36 has the shock-absorbing members 38 and 39 fixed on the floor slab 32 with an adhesive 40 to form the sound-insulating floor member 36. The floor base material 34 is erected.

The upper surface of each of the shock absorbing members 38 and 39 is coated with a double-sided tape 41 on the lowermost particle board 4 of the floor substrate 34.
2, the floor base material 34 including the particle board 42, the sound insulation plate 43, and the particle board 44 is fixed with screws, and the flooring material of the floor finish material 35 is fixed to the floor base material 34 with floor nails. Each shock absorber 38,3
The lower surface of 9 is fixed by an adhesive 45.

As shown in FIGS. 10 and 11, the sound-insulating floor member 56 according to the present invention has a plurality of shock absorbing members 58, 59 and a support member 60, and is provided between each of the shock absorbing members 58, 59. , A space 57 is provided.

The shock absorbing member 58 is provided at the center of the supporting member 60.
It is formed of a conical spring 62 fixed to the pedestal 61. Inside the conical spring 62, a foam body 63 for preventing spring contact noise is put.

[0094] The cone-shaped spring 62 applies the pedestal 61 to the adhesive 65.
The upper part of the conical spring 62 is provided with a plastic cap 66 to prevent the generation of contact noise with the floor material.

The shock absorbing material 59 is formed of a viscoelastic body in the shape of a truncated pyramid fixed to the four corners of the supporting material 60.

The support member 60 is provided on the lower surface of the shock absorbing members 58 and 59, and is made of an uneven molded sheet with ribs 67.

The lower surfaces of the shock absorbing members 58 and 59 are fixed to the support member 60 with an adhesive 65, and the support member 60 is provided with an adhesive 68a at a portion of the lower surface that contacts the floor slab. A double-sided tape 68b is provided on the upper surface of the material 59, and the adhesive 68a and the double-sided tape 68b are separated from the release paper 6 respectively.
It is protected by 9a and 69b.

In the sound-insulating floor member 56, the viscoelastic body at the four corners is set slightly higher than the central conical spring, and the spring characteristic is such that the conical spring exhibits a linear spring characteristic. Shows progressive spring characteristics.

As shown in FIG. 12, in a soundproof floor structure 71 of another example of the present invention, a soundproof floor member 76 is disposed on a floor slab 72. The soundproof floor member 76 includes shock absorbing members 78 and 79 made of a viscoelastic body and a support member 80.

As shown in FIG. 12, the soundproof flooring material 76 is fixed to the floor slab 72 with an adhesive 88a.
And a double-sided tape 88b.

The floor slab 72 is made of a particle board 72a and a joist 72b, and is a wooden floor panel slab.

On the sound-insulating floor material 76, a particle board 84, a sound insulation plate 83, and a particle board 84 are laminated and fixed in this order to form a floor base material 74, on which a flooring material 75 as a floor finishing material 75 is made of floor nails. It is fixed at.

As shown in FIGS. 13 and 14, the sound-insulating floor member 76 has a support member 80 arranged on the upper side, and has five shock absorbers 78 at the center thereof and four shock absorbers 7 at four corners thereof.
9.

The shock absorbing members 78 and 79 are made of a viscoelastic material. The shock absorber 78 has a concave portion 78a at the center of the lower surface, and the shock absorber 79 has an adhesive 88a on the lower surface.

The height of the shock absorbing material 79 is set higher than that of the shock absorbing material 78. A double-sided tape 88b is attached to the upper surface of the support member 80 so that it can be fixed to the floor base material 74.

As shown in FIGS. 15 and 16, the sound-insulating floor member 96 according to the present invention is one in which the shock absorbing members 98 and 99 and the support member 100 above them are integrally formed of a viscoelastic body. is there.

The shock absorbing member 98 at the center of the supporting member 100 is
Four shock absorbers 99 arranged at four corners of the support member 100
The height is set lower, and both are formed of a frustum-shaped viscoelastic body.

FIGS. 6 and 7 are side views and plan views of a sound-insulating floor material according to Embodiment 3 in which a 2 mm-thick butyl rubber sheet is used as a supporting material on the lower surface of the sound-insulating floor material. It is.

FIG. 10 is an example in which a sheet-like supporting member with ribs is used, and FIG. 11 is a cross-sectional view of the sound-insulating floor member of Example 5, and FIG. 11 is a plan view thereof. There is a ribbed sheet around the shock absorber, which has a ribbed finish, and retains its shape despite the thinness of the sheet, facilitating construction.

FIGS. 13 and 14 are examples using a plate-like support member, and are a side view of the soundproofing floor material of Examples 6 and 8 and a rear view of the soundproofing flooring material viewed from the floor slab side. The shock absorbing material is integrally formed with a rubber plate-like support material in which steel and rubber are laminated and integrated.

FIGS. 15 and 16 show an example in which a sheet-like supporting material is used, in which the shock absorbing material of the soundproof flooring material of Example 7 and a rubber sheet-like supporting material are integrally molded.

[0112]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below with reference to the drawings by way of examples and comparative examples. Example 1 Vibration insulating rubber was attached to both ends of a floor opening of an acoustic laboratory, and an ALC floor slab was erected thereon. Next, EPT / I
A shock absorber having a shape of 25 mm in height formed by integrally forming nine trapezoids with a lower surface of 100 mm square and an upper surface of 50 mm square in a 300 mm square formed from a hardness of 30 of the IR mixture was used as a soundproof flooring material. The core was fixed to the floor slab at a pitch of 45 cm by urethane caulking.

Next, urethane caulking was applied on the soundproof flooring material, a 20 mm-thick particle board was laid, a sound insulation plate having a specific gravity of 2.7 was laid thereon, and an 8 mm-thick sound insulation plate was laid thereon.
1 mm thick particle board is laid in the direction orthogonal to the lower particle board, and fixed with screws reaching the lower particle board to form a floor base material, and a 12 mm thick flooring material is fixed thereon with a floor nail, as shown in FIG. A soundproof floor structure was constructed.

The weight floor impact sound of the obtained soundproof floor structure was
The measurement was performed at five excitation points and five sound receiving points in accordance with IS-A-1418-1978. Table 1 shows the results.

Example 2 The same as Example 1, except that a shock-absorbing material alone (a butyl rubber having a hardness of 4) filled with a liquid as shown in FIGS.
0) was used to produce a soundproof floor structure. The weight floor impact sound was measured in the same manner as in Example 1, and the test results are shown in Table 1.

Example 3 In the same manner as in Example 1, on the ALC slab, the liquid-filled shock absorber shown in FIGS. 6 and 7, four truncated cone-shaped shock absorbers, and a single-sided support were used. Is placed on the floor slab with a core / core with the short side direction of the floor slab at 60 cm pitch and the long side direction at 60 cm pitch. Urethane caulking is applied on the top of the sound proofing floor material, a 20 mm thick particle board, sound insulation Board 8mm
A 15 mm thick particle board was laid and fixed in the same manner as in Example 1 to form a floor base material, and a 12 mm thick flooring material was fixed as a floor finishing material with a floor nail to form a soundproof floor structure. The weight floor impact sound was measured in the same manner as described above, and the test results are shown in Table 1.

Example 4 In the same manner as in Example 1, an ALC floor slab was erected, and a truncated cone-shaped shock-absorbing material having a hardness of 40 and a hardness of 40 was arranged thereon as shown in FIGS. In the center, around the hardness 5
A group of sound-insulating flooring materials was fixed with urethane caulking with four pieces of shock absorbers in the shape of a truncated cone of 0 and slightly smaller, and the release paper of the double-sided tape provided on the support material of the soundproofing flooring was removed. To
20mm thickness particle board, 8mm thickness sound insulation board, 15m
An m-thick particle board was laid and fixed in this order to form a floor base material, and a 12 mm-thick flooring material was fixed thereon with a floor nail to form a soundproof floor structure. The heavy floor impact sound was measured in the same manner as in Example 1, and the results are shown in Table 1.

Example 5 In the same manner as in Example 1, an ALC floor slab was erected, and a shock absorbing material was placed on the ALC floor slab as shown in FIG. 10 and FIG. The sound-insulating flooring made of a viscoelastic body and provided with a support for a ribbed sheet underneath them is attached to a floor slab after removing the release paper of 1 mm thick butyl rubber adhesive provided on the surface of the support. Then, the release paper of the double-sided tape of the upper support material is removed, and a 20 mm-thick particle board, an 8 mm-thick sound insulation plate, and a 15 mm-thick particle board are laid and fixed thereon in that order to form a floor base material.
The flooring material having a thickness of mm was fixed with a floor nail to form a soundproof floor structure. The weight floor impact sound was measured in the same manner as in Example 1, and the results are shown in Table 1. Further, after the measurement, the impact was continuously applied by the bang machine for 7 consecutive days at the floor center excitation point, and the heavy floor impact sound after the continuous impact at the floor center excitation point was obtained at the lower room 5 sound receiving points. The measurement was performed and the results are shown in Table 1.

Example 6 A joist (50 mm width × 1818 mm length × 130 mm height) and a particle board (20 mm thickness × 909 mm width ×
1818 mm in length), and a wooden floor panel as shown in FIG.

The soundproof floor structure shown in FIG. 12 was removed from the double-sided tape on the lower surface by using a shock absorbing material as shown in FIGS. After removing the release paper, a 15 mm-thick particle board, 8 mm-thick sound insulation plate, and 9 mm-thick particle board are respectively laid and fixed thereon, a floor base material is formed, and a 12 mm-thick flooring material is fixed with a floor nail, and a soundproof floor is formed. Structure formed. The weight floor impact sound was measured in the same manner as in Example 1, and the results are shown in Table 1.

Example 7 The same wooden floor panel slab as in Example 6 was used. FIG.
And a sound-insulating flooring as shown in FIGS. 16 and 17, wherein the shock absorbing material has a convex portion at one center and a total of four at four corners.
A 0 mm square support member was a laminate of rubber and a net-like material, a 1 mm thick adhesive layer was provided on the convex portions at the four corners, and the central convex portion was 3 mm thinner than the four corners.

A soundproof flooring material is adhered to a wooden floor panel slab at a pitch of 450 mm with a long side and a short side concentric / core, with the support side up, and a release paper of a double-sided tape on the support side. Remove,
A 15 mm-thick particle board was laid on the soundproof floor in a direction orthogonal to the wooden floor panel slab, an 8 mm-thick sound insulating plate and a 9 mm-thick particle board were laid, and screws were fixed to the 15 mm particle board to form a floor base material.

On the floor substrate, a 12 mm thick flooring was fixed with floor nails to form a soundproof floor structure. The weight floor impact sound was measured in the same manner as in Example 1, and the results are shown in Table 1.

Example 8 The same wooden floor panel slab as in Example 7 was used, and as an under-floor electric wiring route, 2 cm thick ferrite and acetylene carbon on aluminum foil with double-sided tape with a width of 20 cm between soundproof flooring materials and 20 cm width. A butyl rubber layer containing black was provided on the opposite side of the double-sided tape to form an electromagnetic wave absorbing layer.

Next, the electromagnetic wave absorbing layer is attached to the bottom surface of a 15 mm-thick particle boat so that the L-shaped electromagnetic wave absorbing layer is disposed on the L-shaped electromagnetic wave absorbing layer of the wooden floor panel slab. On the floor slab and on the underside of the floor substrate. Thereafter, a soundproof floor structure was formed in the same manner as in Example 6. The weight floor impact sound was measured in the same manner as in Example 1, and the results are shown in Table 1.

Comparative Example 1 A slab was used as an ALC (100 mm thick × 600 × 1800) slab, and a commercially available double floor support leg (formed of SBR rubber having a hardness of 70, a support rod, and a base plate) was used. Place a 20mm thick particle board on top of it,
900mm on 10cm square base plate with adhesive
A particle board having a width of 1800 mm, a length of 20 mm and a thickness of 900 mm was supported at a core / core. At this time, the particle board supported the particle board in a T-shape on the support legs.

On this, an 8 mm-thick sound insulating plate and a 15 mm-thick particle board were laid, fixed to a 20 mm-thick particle board with screws, a floor base material was formed, and a 12 mm-thick flooring material was fixed to the floor base material with a floor nail. Formed the floor. The weight floor impact sound was measured in the same manner as in Example 1, and the results are shown in Table 1.

Comparative Example 2 The same slab as the wooden floor panel slab used in Example 6 was erected between beams, an 8 mm thick sound insulating plate was laid on the wooden floor panel, and 12 m
A m-thick plywood was laid thereon and fixed to a wooden floor panel slab with screws.

Next, the cinder concrete was cast with a thickness of 35 mm, and after curing, a 2 mm thick butyl rubber sheet with a single-sided adhesive layer was stuck thereon, and a 12 mm thick flooring material was stuck thereon with an epoxy adhesive to form a floor. . Example 1
The weight floor impact sound was measured in the same manner as described above, and the results are shown in Table 1.

COMPARATIVE EXAMPLE 3 A 225 mm square plywood having a thickness of 12 mm and a 12 mm thick 3
Upper and lower plates made of 00 mm square plywood are provided, and a conical spring with washer 25 mm thick is fixed to the lower plate only with screws in the center, and a 20 mm square upper surface, a 40 mm square lower surface, and a 25 mm height rubber truncated square pyramid at the four corners. A 1 mm-thick butyl rubber sheet is adhered to the upper and lower plates in contact with the floor slab and the floor base material, and used as a soundproofing material. Fixed with particle board and screws, 8m
An m-thick sound insulating plate and a 15-mm-thick particle board were laid and fixed in this order to form a floor base, and a 12-mm-thick flooring material was fixed thereon with a floor nail to form a floor structure.
The weight floor impact sound was measured in the same manner as in Example 1, and the results are shown in Table 1. Further, similarly to Example 5, the floor center excitation point was impacted continuously for 7 days by a bang machine, and the floor floor excitation point was measured at the lower room 5 sound receiving points at the floor excitation point. It was shown to.

[0131]

[Table 1]

The results of Examples and Comparative Examples are shown in Table 1 based on Table 1.
explain. In the first embodiment, the soundproofing floor material is made of a single shock absorbing material.
In this example, the shock absorbing material absorbs the shock with nine convex portions.
You. The bending strength of the floor finishing material and floor base material combined is 610k
gf / cm²And the distance between the ends of the soundproof flooring is 15 cm
It is. As a result of Example 1, commercially available ALC slab of Comparative Example 1
Compared to the case where a double bed is formed, L_HL improved by 7
_H The value is as close as possible to 55 class. Obviously ratio
It turns out that it is superior to Comparative Example 1.

In the second embodiment, the sound-insulating floor member is made of a single shock absorbing material, the shock absorbing material is provided with a liquid enclosing portion in a viscoelastic material, and the viscoelastic material projects downward in a semicircular shape at the center. This is an example in which a lateral sway prevention and a large deformation prevention portion are provided. The combined bending strength of the floor finishing material and floor base material is 610 kgf / c.
m ^2, and sound-insulating floor members the ends distance is 30 cm.

[0134] Example 2 results, compared with the case of forming the commercially available double floor ALC floor plates of Comparative Example 1, is 8 improved L _H value, and clear the L H ₅₅ grades. Obviously, it is superior to Comparative Example 1.

In Example 3, the soundproofing material was a medium-sized rectangular parallelepiped liquid-encapsulated shock absorber and four frustoconical viscoelastic bodies arranged at four corners were fixed to a support material, and the central liquid was encapsulated. The shock absorbing material has liquid enclosing portions at four places, each of which is connected by a thin tube. The liquid-filled shock absorbing material is provided slightly higher than the four corner frustum-shaped frustum-shaped viscoelastic bodies. It also serves as prevention. The total bending strength of the floor finishing material and floor base material is 610 kgf / cm ² ,
The distance between the ends of the soundproofing floor material is 40 cm on both the long and short sides.

As a result of Example 3, the result of heavy floor impact sound was L
Improvement of _H 55 is grade very heavy floor impact sound is high it is seen.

In Example 4, a truncated cone-shaped shock absorber having a hardness of 40 was provided at the center and a truncated cone-shaped shock absorber having a hardness of 50 was used as a group to form a soundproof flooring material. It is provided so as to fit within a 15 cm square, and the installation pitch is a core / core, with the long side of the floor slab being 45 cm pitch and the short side being 60 cm pitch. The total bending strength of the floor finishing material and floor base material is 610 kgf / c
m ^2, and the sound-insulating floor members the ends distance between long sides 30 cm, shorter side 45
cm.

[0138] Results of Example 4, the measurement results of the weight floor impact sounds L _H 55 are grade very seen that high effect of reducing the heavy floor impact sounds.

In the fifth embodiment, the shock-absorbing material is composed of a central conical spring and a viscoelastic body in the shape of a truncated pyramid at four corners.
A soundproof flooring material provided with a support material for an uneven molded sheet with corner ribs is attached to a floor slab and a floor base material. The center conical spring is set 3 mm lower than the viscoelastic body in the shape of a truncated pyramid at the four corners. The soundproofing floor material was arranged at a pitch of 30 cm on both the long side and the short side of the core / core. The total bending strength of the floor finishing material and floor base material is 610
At kgf / cm ² , the distance between the ends of the soundproofing floor material is 15 cm on both the long and short sides.

[0140] Results of Example 5, the measurement results of the weight floor impact sound, L H ₅₅ are grade very seen that high effect of reducing the heavy floor impact sounds. In addition, it can be said that there is almost no change in the result after the continuous vibration for 7 days from that immediately after the construction, and there is no long-term deterioration. It can be seen that it was improved as compared with the deterioration of Comparative Example 3 after seven consecutive days of vibration.

The sixth embodiment is different from the sixth embodiment in that a central recess is provided on a wooden floor panel slab.
5 frustum-shaped shock absorbers and 4 frustum-shaped shock absorbers
Each of the shock absorbers in the shape of a truncated cone with a central recess
It is set 2 mm lower than the truncated cone-shaped shock absorber. Previous
Note: Each shock absorber is fixed on the upper side with support material to provide a soundproof flooring.
The sound-insulating flooring is 30cm square and the floor slab is long.
Wooden floor panel slab and under floor with 45cm pitch on both sides and short sides
It is fixed to the lower surface of the base material with double-sided tape. Floor finish and floor
The total bending strength of the base material is 460 kgf / cm ²so,
The distance between the ends of the soundproof flooring material was 15 cm for both the long and short sides.
Was.

[0142] Results of Example 6, heavy floor impact sounds are _L H 60
Grade, which is one rank better than the heavy equipment floor of Comparative Example 2.

In the seventh embodiment, the wooden floor panel slab is made of a single-sided shock absorbing material with a single-sided support and has one shock absorbing projection at the center and four at each of the four corners. The convex portion is an example in which a soundproof floor material having a central convex portion lowered by 3 mm is fixed to the floor slab and the floor base material at a pitch of 450 mm with the long side and the short side concentric / core of the wooden floor panel slab. The total bending strength of the floor finishing material and the floor base material is 460 kgf / cm ² , and the distance between the ends of the soundproofing floor material is 25 cm on both the long side and the short side.

[0144] Results of Example 7, the weight floor impact sounds _L H 60
A grade, have been improved to a level as close as possible to the L H _-55 grade.

Example 8 is an example in which the floor structure is exactly the same as that of Example 7, and the presence or absence of the effect of heavy floor impact noise when an electromagnetic wave absorbing function is provided under the floor of a personal computer room. The total bending strength of the floor finishing material and floor base material is 460k
gf / cm ² , the distance between the ends of the soundproof flooring material is 2 on both the long and short sides
5 cm.

As a result of Example 8, the heavy floor impact noise was
When exactly the same, a L H ₆₀ grade, measurement for each frequency is also exactly the same result, there was no effect of heavy floor impact sounds cm ² be provided with the electromagnetic wave absorption function.

In Comparative Example 3, although the heavy floor impact sound showed a good result immediately after the construction, the deterioration after seven consecutive days of vibration was L
_{The H} value is also 5, which is expected to deteriorate over a long period of time.

[0148]

According to the sound-insulating floor structure of the present invention, floor structures of buildings ranging from rigid structures represented by high-rise apartment buildings to flexible structures represented by conventional wooden detached houses. In this case, it is possible to reduce the heavy floor impact noise while suppressing the floor displacement.

[Brief description of the drawings]

FIG. 1 is a sectional view of a soundproof floor structure according to an example of the present invention.

FIG. 2 is a plan view of a soundproof flooring according to an example of the present invention.

FIG. 3 is a sectional view of the soundproof floor material taken along line AA of FIG. 2;

FIG. 4 is a sectional view of the soundproof flooring material of FIG. 2 taken along line BB.

FIG. 5 is a cross-sectional view of the soundproofing floor material of FIG. 2 taken along line CC.

FIG. 6 is a side view of another example of the soundproof flooring material of the present invention.

FIG. 7 is a plan view of the soundproof flooring of FIG. 6;

FIG. 8 is a plan view showing an arrangement of soundproof floor materials in a soundproof floor structure according to another example of the present invention.

9 is a sectional view of the soundproof floor structure of FIG.

FIG. 10 is a cross-sectional view of one example of a soundproof flooring material according to the present invention.

FIG. 11 is a plan view of the soundproof flooring material of FIG.

FIG. 12 is a sectional view of a soundproof floor structure according to still another example of the present invention.

FIG. 13 is a side view of a soundproof floor material used for the soundproof floor structure of FIG.

FIG. 14 is a rear view of the soundproof flooring material of FIG. 13 as viewed from a floor slab.

FIG. 15 is a side view of still another example of the soundproof flooring material according to the present invention.

FIG. 16 is a rear view of the soundproof flooring material of FIG. 15 as viewed from a floor slab.

[Explanation of symbols]

1,31,71 Soundproof floor structure 2,32,72 Floor slab 3 Floor material 4,34,74 Floor base material 5,35,75 Floor finish material 6,16,26,36,56,76,96 Soundproof floor material 7, 37a, 37b, 57 space 8, 18, 28, 29, 38, 39, 58, 59, 7
8, 79, 98, 99 Shock absorbing material 8a Upper surface 8b Lower surface 18a, 28a Liquid sealing portion 18b Horizontal sway prevention / large deformation prevention portion 28b Thin tube 30, 60, 80, 100 Supporting material 40 Adhesive 41, 68b, 88b Double-sided tape 42,44,72a, 84 Particle board 43 Sound insulation plate 45,65 Adhesive 61 Pedestal 62 Conical spring 63 Foam 66 Plastic cap 67 Rib 68a, 88a Adhesive 69a, 69b Release paper 72b Joist 78a Depression (plate, Sheets, films, ribbed sheets, uneven sections, honeycombs and corrugated boxes are added.

 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2E001 DF01 DF06 DH03 EA01 FA11 GA02 GA08 GA10 GA12 GA20 GA24 GA45 GA63 GA87 HA01 HA03 HA04 HC02 HC04 HD01 HD11 HE01 HF14 HF16 JD01 LA18

Claims (7)

[Claims] 1. A soundproof floor structure comprising a floor slab and a floor material on the floor slab, wherein a plurality of soundproof floor materials are arranged between the floor slab and the floor material. When the sound-insulating floor structure is viewed in a longitudinal section, the sound-insulating floor members are separated from each other, a space is provided between the sound-insulating floor members, and each of the sound insulating floor members is only a shock absorbing material. Wherein the upper surface and the lower surface of the shock absorbing material are in direct contact with the floor material and the floor slab, respectively, or via an adhesive. 2. A soundproof floor structure comprising a floor slab and a floor material on the floor slab, wherein a plurality of soundproof floor materials are arranged between the floor slab and the floor material. When the sound-insulating floor structure is viewed in a longitudinal section, the sound-insulating floor members are separated from each other, a space is provided between the sound-insulating floor members, and the sound-insulating floor members serve as shock absorbing materials. Only one of the upper surface and the lower surface of the shock absorbing material is in direct contact with the floor material or the floor slab or via an adhesive, and the upper surface or the lower surface of the shock absorbing material and the floor material Or, between the floor slab, there is provided a support for supporting the shock absorbing material, the support is selected from the group consisting of wood, paper, inorganic, plastic, fiber, rubber and metal Made of at least one kind of material, wherein the support material is plate-like, sheet-like, film-like, A sound-proof structure comprising at least one shape selected from the group consisting of a sheet shape, a cross section uneven shape, a honeycomb shape, and a cardboard shape, wherein the support material is fixed to the floor material or the floor slab. Floor structure. 3. The support member is provided with a plurality of the shock absorbing members, and each of the shock absorbing members is different from each other in at least one of height, hardness, and spring characteristics. The soundproof floor structure according to claim 2. 4. The distance between the ends of the soundproof flooring material is 5-7.
The soundproof floor structure according to any one of claims 1 to 3, wherein the soundproof floor structure is 0cm. 5. The floor material according to claim 1, wherein the floor material has a flexural strength of 0.196 to 98.1 MPa according to a method specified in JIS-A-5908. The soundproof floor structure described in the section. 6. The electromagnetic wave absorbing layer is provided on an upper surface of the floor slab, a lower surface of the floor material, and a side surface of the soundproof floor material. Soundproof floor structure. 7. A soundproofing flooring material disposed between a floor slab and a flooring material on the flooring slab, wherein the soundproofing flooring material includes a shock absorbing material, and the shock absorbing material is rubber or plastic. Is a viscoelastic body formed from, wherein an internal space is provided in the shock absorbing material, a gas or liquid is sealed in the internal space, and a plurality of the soundproofing floor materials are the floor slab and the floor slab. A sound-insulating floor structure is formed between the sound-insulating floor structures, and when the sound-insulating floor structure is viewed in a longitudinal section, the sound-insulating floor materials are separated from each other, and a space is provided between the sound-insulating floor materials. A soundproofing floor material, wherein at least one of the upper surface and the lower surface of the shock absorbing material is in direct contact with the floor material or the floor slab or with an adhesive.