JPH04306354A - Soundproof support unit and double floor soundproof structure using the same - Google Patents

Abstract

PURPOSE:To raise soundproofing characteristics in noisy spaces as well as make wiring and piping operations easier by providing noise energy absorbers on the surface of square common connected sheets. CONSTITUTION:A square floor panel unit is made up of four particle boards 8 each of which is provided five rubber legs 9. Noise energy absorbers, such as uneven or projected surfaces capable of well absorbing energy and reflecting noise due to increased surface areas, are provided on the surface of a common connected sheet 10. The area between the support legs 9 is partitioned by a vertically connected wall sheet in such a way as to prevent the diffusion and propagation of noise from sources into double-floor space. Also, continuous linear or latticed floor exposures of given dimensions are formed at the time of setting for wiring and piping there.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound insulation support unit and a double floor sound insulation structure using the same.

0002

[Prior Art] Recently, the living areas of housing complexes such as condominiums and apartments have been changed to wooden flooring due to the fact that the carpet finish, which has been widely used in the past, causes the growth of dust mites, and the residents' desire for nature. is becoming mainstream.

[0003] In the case of this wooden flooring method, there is no cushioning material such as carpet, so the impact noise when walking or when something falls onto the floor is transmitted as noise to the living room downstairs through the flooring and the floor. It is attracting attention as a new environmental problem.

[0004] Conventionally, as a noise reduction measure for this wooden flooring, a cushion layer of rubber or plastic was provided between the floor surface and the flooring, such as a flooring, or a finished flooring, or a finishing material was applied on top of the cushioning layer. A method has been put into practical use in which a floor panel to be constructed is lifted off the floor using support legs, and a cushioning material such as rubber or plastic is added between the support legs and the floor to provide soundproofing and insulation.

However, these noise reduction measures for wooden flooring require many skilled workers such as carpenters for on-site work such as constructing the floor base and applying finishing materials, and the required man-hours are also large. The shortage of workers has led to problems such as longer construction periods and soaring costs.

On the other hand, in offices and the like, in order to cope with the increasing number and complexity of wiring for OA equipment, double floors and free access floors, in which wiring is processed in the space, have been put into practical use.

[0007] This free access floor for OA equipment wiring has wiring floor units of about 50 cm square laid one after another on the floor side, and the floor units can be removed and restored at any position.

[0008] Therefore, attention is being paid to the application of this raised floor system for wiring OA equipment to wooden flooring.

[0009] This wooden flooring applied to the free access floor system for OA equipment wiring has a composite plastic sheet with a woodgrain finish applied to the surface, and cushioning material such as rubber is added to the support legs, so it is suitable for apartment buildings etc. The number of on-site construction man-hours for floor units can be significantly reduced.

[0010] On the other hand, the size of the floor panel of the conventional double floor subfloor and floor panel support leg method is 90cm square or 90cm square.
A relatively large floor panel measuring 180 cm x 180 cm is supported by about 5 to 6 support legs.

Further, the support legs have a structure that allows fine adjustment of the height in order to absorb unevenness such as unevenness of the mortar finish on the floor surface.

However, in the conventional easy-to-install double floor type, the unevenness of the floor surface is not handled by height adjustment using support legs, but by dividing the 50 cm square floor panel into 9 parts, etc. A construction method that eliminates rattling has been put into practical use as an economical method.

[0013] For this purpose, 9 50cm square floor panels
The subdivision method is increasingly being adopted as a prefabricated construction method for apartment complexes, etc. due to ease of construction.

Now, in the double floor type, it is necessary to install rubber support legs with sound insulation properties such as rubber or plastic at the ends of the support legs on the floor surface for sound insulation, but the number of rubber support legs with sound insulation properties such as rubber or plastic is limited for example in a 50cm square unit. When divided into 4 parts, there will be at least 4 pieces in the split panel, and up to 16 pieces in the floor unit.
The effort and man-hours involved in installing it are enormous.

[0015] Therefore, the trouble of installing a large number of rubber support legs,
In order to simplify the man-hours and prevent the impact noise emitted by the floor panels from propagating through the double floor space and downstairs via the floor surface, the mounting positions of the numerous rubber feet are maintained and the floor surface is Rubber support leg units, etc., have been devised, in which the contact points are connected with a common sound-absorbing rubber sheet, etc.

By using this rubber support leg unit, a large number of rubber legs can be attached to the unit at the same time, and since the floor surface is covered with a rubber sheet, it is effective in reducing noise propagated in space.

FIG. 4 shows such a conventional double bed, with FIG. 4(a) being a plan view thereof and FIG. 4(b) being a plan view thereof.
is also a sectional view thereof.

In this case, one unit is 50 cm square, and the floor panel 3 is divided into four parts.

The double floor laid on floor 1 is constructed as follows.

[0020] On the back side of the 50 cm square surface finishing material 2 made of a plastic sheet with a woodgrain finish, etc. or thin and slightly flexible plywood, etc. A four-part floor panel 3 is glued together with an adhesive, a double-sided adhesive sheet 4, or the like.

These floor panels 3 have their material, structure,
The number of supporting legs 5 determined by the thickness and floor load capacity, e.g. 5
A book is provided, and a rubber leg 6 for sound insulation is attached to the tip of the book, and the five rubber legs 6 attached to the divided floor panel 1 unit are connected to a common rubber sheet in contact with the floor 1. It is a rubber support leg unit configured to be connected at 7.

Therefore, in the rubber support leg unit, as shown in FIG.
As is clear from the figure, almost the entire surface of the floor is covered with this common rubber sheet 7.

[0023]

[Problems to be Solved by the Invention] By the way, since the conventional double floor installation method is prefabricated as mentioned above, it has the advantage of greatly reducing the number of man-hours required for installation, and it also has the advantage of reducing the space created within the double floor by wiring and wiring. Another major feature is that it can be used as a space for piping.

However, when the aforementioned common rubber sheet 7 is used, almost the entire surface of the floor 1 is covered with this common rubber sheet 7, and although there is a space between the floor panel 3 and the common rubber sheet 7, It will be extremely difficult to run wires and piping through this part.

That is, since the rubber support leg unit is attached to the floor panel 3, when the floor panel is attached or detached for wiring and piping, it is attached and detached in one piece, so the double floor space can be used as a space for wiring and piping. In order to use it, it is necessary to lay it down and run wires and pipes at a low height and through the narrow gaps between the many support legs 5, which has the drawback of extremely poor workability and difficult maintenance. .

[0026] Furthermore, the common connecting sheet 7 has the drawback that its sound insulating properties are not sufficient, and if it is made thick, economical efficiency will be impaired.

An object of the present invention is to provide a sound insulating support unit and a sound insulating support unit using the same, which can eliminate the drawbacks of the prior art described above, simplify wiring and piping, and significantly improve the sound insulating characteristics of noise space propagation. Located in a double floor soundproof structure.

[0028]

[Means for Solving the Problems] The gist of the sound insulation support unit of the present invention and the double floor sound insulation structure using the same is the following two points.

(1) In a sound insulation support unit in which a plurality of elastic support legs are erected on the top surface of a square-shaped common connection sheet that can be laid to cover the floor surface, a plurality of noise energies are generated on the surface of the common connection sheet. A sound insulation support unit characterized by being provided with an absorber.

(2) A sound insulation support unit consisting of a plurality of elastic support legs erected on the top surface of a square common connecting sheet is laid on the floor surface, and a square floor panel is laid on the sound insulation support unit. A double floor sound insulating structure comprising a double floor sound insulating structure characterized in that the size of the common connecting sheet is smaller than the floor panel so that a grid-like wiring or piping space can be secured.

[0031]

[Function] The sound insulation support unit of the present invention and the double floor sound insulation structure using the same have the following two functions.

First, the sound insulation support unit of the present invention has a plurality of noise energy absorbers on the surface of a common connecting rubber sheet.
For example, noise is reflected due to unevenness, protrusions, increased surface area, etc.
By improving energy absorption and partitioning the space between the support legs with a three-dimensional vertically connected wall-like sheet, it is possible to effectively prevent noise from spreading and propagating in all directions in the double floor space from the point of generation. In addition, the double floor sound insulation structure of the present invention has a square common connecting sheet constituting the sound insulation support unit that is smaller in size than the square floor panel, so that the double floor sound insulation structure of the present invention can be installed with the specified dimensions at the time of installation. The purpose is to form a continuous linear or lattice-like exposed floor part, and to enable wiring and piping to be installed in the formed part.

[0033]

EXAMPLES Next, examples of the sound insulation support unit of the present invention and a double floor sound insulation structure using the same will be explained with reference to the drawings.

FIG. 1 shows the construction status of a double-floor sound insulation structure according to the first embodiment of the present invention, and FIG. 1(a)
1 is a plan view thereof, and FIG. 1(b) is a sectional view taken along line a-a'.

In this first embodiment, FIGS. 1(a) and 1
As can be seen from (b), one unit is 50 cm square, and the square floor panel is divided into four parts by particle board 8, and five rubber legs 9 are installed.
15 is the adjacent line of the floor panel. This figure 1 (a
), the square sound insulation support unit has five rubber legs 9 standing on a square common connection sheet 10, and the size of the common connection sheet 10 is 25 cm.
3cm smaller than the size of the corner four-part floor panel, and
If the size is 22 cm square, a portion that does not cover the entire floor will be formed in a grid shape with a width of about 3 cm as shown in the figure.

[0036] Therefore, both before and after the sound insulation support unit is installed, the wiring and piping necessary for this part (of course, it is limited to a size narrower than the exposed width of the space between the floor panel and the floor surface). By installing the floor panel, the desired purpose can be easily achieved regardless of whether the floor panel is attached or detached.

FIG. 2 shows a sound insulation support unit according to a second embodiment of the present invention, in which FIG. 2(a) is a plan view thereof, and FIG. 2(b) is a sectional view taken along line a-a'. It is.

In the sound insulation support unit of the second embodiment, the surface of the common connecting sheet 10 is not flat, but has a large number of serrated grooves 13 formed therein.
Since the surface area of 0 is increased, noise reduction is significantly improved, and a noise attenuation effect due to diffused reflection can also be expected.

FIG. 3 is a perspective view showing a sound insulation support unit according to a third embodiment of the present invention, which is characterized by the addition of a connecting wall-like sheet 14.

The sound insulation support unit of this third embodiment has 5
The rubber supporting legs 9 of the book are connected to each other by a vertically connecting wall sheet 14.

When this third embodiment is used as a box-shaped unit that is open from the top, the impact noise generated from the floor panel surface of the information combined with this unit is surrounded by the vertically connected wall sheet 14 in three dimensions. The damping effect can be significantly improved as a result.

In the present invention, the vertically connected wall sheet 14 can be made of a material with excellent sound absorption properties such as rubber or plastic.

[0043] Furthermore, since these sound insulation support units can be formed by molding, once they are processed at the time of mold production, even complex shapes that are highly effective in reducing noise can be easily manufactured.

In the first embodiment described above, the size of the common connecting sheet 10 is smaller than the particle board 8 of the divided floor panels, but it can be put to practical use if it is smaller than the floor finishing material. , and its dimensions are not particularly limited.

Furthermore, the surface shape of the common connecting sheet 10 is not limited to the serrated grooves shown in the example, but may also be protrusions with intersecting grooves, and the shape thereof may be not only straight lines but also curved lines.

Furthermore, the surface shape of the common connecting sheet 10 on the floor surface may include not only the surface of the sheet, but also the back surface portion in contact with the floor surface, if this is effective. Further, although not shown, a rubber or plastic foam may be combined on a common connecting sheet.

The vertically connected wall-like sheet 14 is not limited to the examples shown, but may also be one that encloses only the periphery, one whose height is in contact with the floor panel surface, one with an appropriate gap, etc. good.

Furthermore, although rubber legs and rubber sheets were used as materials in the examples, it is of course possible to use not only these but also plastics, and the combination thereof is not limited to the same material, but rubber and plastics. It may also be a blend of rubber or a laminate of rubber and plastic.

[0049]

Effects of the Invention The sound insulation support unit of the present invention and the double floor sound insulation structure using the same have the following excellent effects and are industrially useful.

(1) The double-floor sound insulation structure of the present invention covers most of the floor surface with the common connecting sheet, and only exposes a relatively small portion, so that wiring can be carried out without any deterioration of the excellent sound insulation performance. - Piping work efficiency can be significantly improved.

(2) The sound insulation support unit of the present invention provides excellent sound insulation because the surface of the common connecting sheet constituting the unit is provided with a noise energy absorber capable of exhibiting excellent sound absorption, reflection, and space propagation noise attenuation characteristics. can demonstrate its characteristics.

(3) The sound insulation support unit of the present invention significantly reduces noise propagating in four directions through the double space by adding a vertically connecting wall-like sheet to the surface of the common connecting sheet that constitutes the unit. can do.

(4) Even if the sound insulation support unit of the present invention is molded into a complicated shape for noise reduction characteristics,
Once processed at the time of mold production, it can be mass-produced by molding very easily thereafter, which is economical.

[Brief explanation of drawings]

[Fig. 1] Fig. 1 shows the construction status of a double-floor sound insulation structure according to the first embodiment of the present invention, in which Fig. 1(a) is a plan view thereof, and Fig. 1(b) is the same. It is a sectional view taken along the line aa'.

FIG. 2 shows a sound insulation support unit according to a second embodiment of the present invention, and FIG. 2(a) is a plan view thereof;
FIG. 2(b) is a sectional view taken along the line a-a'.

FIG. 3 is a perspective view showing a rubber support leg common connection unit according to a third embodiment of the present invention.

FIG. 4 shows the construction status of a conventional double floor, with FIG. 4(a) being a plan view thereof and FIG. 4(b) being a sectional view thereof.

[Explanation of symbols] 1. Floor 2　Surface finishing material 3. Floor panel 4 Adhesive sheet 5 Support legs 6 Rubber support legs 7 Common rubber sheet 8 Particle board 9 Rubber legs 10 Common connection sheet 11 Exposed floor part 12 Wiring/piping 13 Serrated groove 14 Vertical connection sheet 15 Adjacent line of floor panel

Claims (7)

[Claims] 1. A sound insulation support unit comprising a plurality of elastic support legs erected on the upper surface of a square-shaped common connection sheet that can be laid to cover a floor surface, wherein a plurality of noise energy absorbers are provided on the surface of the common connection sheet. A sound insulation support unit comprising a body. 2. The sound insulation support unit according to claim 1, wherein the noise energy absorber provided on the surface of the common connecting sheet is a serrated groove. 3. The sound insulation support unit according to claim 1, wherein the plurality of elastic support legs are partitioned by a vertically connecting wall-like sheet. 4. A sound insulating support unit comprising a plurality of elastic support legs erected on the upper surface of a square common connecting sheet is laid on the floor surface, and a square floor panel is laid on the sound insulating support unit. 1. A double floor sound insulating structure comprising a double floor sound insulating structure, characterized in that the size of the common connecting sheet is smaller than the floor panel so that a grid-like wiring or piping space can be secured. 5. The double floor sound insulating structure according to claim 4, characterized in that a sound insulating support unit comprising a plurality of noise energy absorbers provided on the surface of a common connecting sheet is used. 6. The double floor sound insulating structure according to claim 4, characterized in that a sound insulating support unit is used in which the surface of the common connecting sheet is partitioned by a vertically connecting wall-like sheet. 7. A sound insulation support unit comprising a plurality of elastic support legs erected on the upper surface of a square common connecting sheet is laid on a floor surface, and a square floor panel is laid on the sound insulation support unit. A double floor sound insulating structure comprising a double floor sound insulating structure, characterized in that the plurality of adjacent sound insulating support units are spaced apart by a predetermined distance to secure a grid-like wiring or piping space. .