JPH0754450Y2 - Sound and vibration isolation floor base equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a floor sound-proof and vibration-proof floor base device.

[Prior Art] Conventionally, in a floor sound-proof / vibration-proof base device, in order to improve sound-insulating performance against heavy floor impact sound, which is supposed to be splashed by children, etc. Although various proposals have been made regarding the material, even if a hard product falls,
No particular consideration was given to light weight floor impact sounds such as chair squeaking noises. FIG. 6 shows an example of a conventional floor laying apparatus, in which the floor laying panel 1 is placed on the base slab 4.
The support leg portion 2 for supporting the support is composed of a support portion 2b, an upper support portion 2a screwed on the support portion 2b, and a pedestal 2c disposed between the support portion 2b and the base slab 4. It is configured.
In such a conventional device, the lightweight floor impact sound is improved to some extent by using a carpet as a floor finishing material.

However, in recent years carpets have come to address hygiene problems such as the generation of stains and mites, and as floor finishing materials,
Wood-based flooring materials are often used. Along with this, there has been a demand for a floor lining device having an effect of improving a lightweight floor impact sound in a wood-based flooring finish, but a product satisfying this requirement has not yet been produced.

Therefore, there is a demand for a sound- and vibration-proof floor base apparatus having high sound insulation performance against both heavy floor impact sound and lightweight floor impact sound.

[Problems to be Solved by the Invention] The present invention is an underfloor device that is effective against the light-weight floor impact sound, which was insufficient with the conventional technology, and is also effective against the heavy floor impact sound. It is an object of the present invention to provide a sound-proof and vibration-isolating floor base device having higher performance than the above.

[Means for Solving the Problems] The present invention has been made to solve the above problems.
A sound and vibration-proof floor base apparatus having a floor base panel, a support leg portion supporting the floor base panel, and a pedestal for receiving the support leg portion, wherein the base has a hardness of 50 ° to 90 °. A rubber base having a pedestal base made of high modulus anti-vibration rubber and a receiving member placed on the pedestal base, and having a higher specific gravity than the pedestal base between the pedestal base and the receiving member. , A sound-proof and vibration-proof floor base equipment, characterized in that a vibration-damping material composed of at least one of asphalt-based or plastic-based is interposed, and at least a vibration-damping material is arranged under the floor base panel. It is provided.

Hereinafter, an embodiment of the present invention will be described.

1 and 2 are partial cross-sectional views of the basic structure of the present invention, FIG. 3 shows the entire floor base panel of one specific example, 1 is a floor base panel, and 2 is a support leg. ing. The floor base panel 1 is, for example, as shown in FIG. 1, a floor base plate for applying a floor surface finishing material such as wood flooring.
Suppresses vibration due to impact generated on the floor surface at 10 and below,
The floor base panel 1 shown in FIG. 3 is made up of the damping material 11 for significantly reducing the impact sound level.
A sound absorbing material 12 for further improving the sound absorbing property is provided on the lower side.

Further, the support leg portion 2 is composed of an upper support portion 20 and a pillar portion 21, and a pedestal 3 for enhancing vibration damping performance is provided below the pillar portion 21.
Is provided. Reference numeral 4 indicates a base slab such as concrete. Floor base plate 10 is a particle board or structural plywood, for example, plate thickness 12mm ~ 30mm, size 450m
An example is m × 600 mm to 1200 mm × 1000 mm, and, for example, supporting leg portions are fixed to four to eight places below the floor base plate. The vibration damping material 11 is preferably a material having viscoelasticity as a material, and specifically, a synthetic resin-based, rubber-based or asphalt-based material mixed with an inorganic filler in a composition having an internal damping ability is formed into a sheet shape. Those are particularly preferable.

In addition, the plate thickness is about 1 mm to 10 mm, and the size is the floor base plate 10
Almost the same as the above is preferably used. The supporting leg portion 2 is cut out into, for example, a circular shape or a polygonal shape, and is used by being adhered to the lower surface of the floor base plate 10 with an appropriate synthetic resin adhesive such as epoxy or vinyl acetate. The damping material 11 is preferably a sheet-shaped material having a bulk specific gravity capable of effectively suppressing the vibration caused by the impact generated on the floor surface, and being capable of significantly reducing the weight and the weight impact sound level.

The sound absorbing material 12 is preferably an inorganic fiber material such as glass wool and rock wool, which has a sound absorbing property and also has a heat insulating property. For example, in the case of glass wool, the bulk specific gravity is 5 to 5.
Those having a thickness of 500, particularly preferably 10 to 96, and a thickness of 5 to 50 mm, particularly preferably 12 to 150 mm are preferably used.
The size thereof is similar to that of the floor base plate 10 like the damping material 11, and its supporting legs are hollowed out and fixed to the damping material 11 with an adhesive material or a fixing pin.

The upper support portion 20 of the support leg portion 2 has a brim portion 22 for fixing the floor base plate 10 on an upper portion thereof, and a female screw 24 that is screwed with the support column portion 21 is provided inside the lower cylindrical portion 23. . Support part 21
Has a cylindrical shape, has an external thread 25 for screwing with the upper support portion 20 in the upper portion thereof, and has a concave portion 26 for mounting the pedestal 3 directly or indirectly in the lower portion thereof. The upper support portion 20 and the column portion 21 may be made of different materials, but are preferably made of the same material, and a metal such as iron or stainless steel or a synthetic resin such as nylon is used. The pedestal 3 is configured to enhance vibration damping performance, has a pedestal base portion 30 and a receiving member 31 placed on the pedestal base portion 30, and is made of a rubber-based material between the pedestal base portion 30 and the receiving member 31. Anti-vibration material composed of at least one of Alfalto and plastic 32
By interposing, the vibration and the sound transmitted through the supporting column 21 are less transmitted to the pedestal base 30, and the sound insulation is improved.

The pedestal base 30 is a rubber-based vibration damping material, and a rubber-based material such as natural rubber, styrene-butadiene rubber, or chloroprene rubber is used as the material thereof. And its hardness is 50 ° ~
Anti-vibration rubber of about 90 ° is especially desirable. As the material of the vibration isolator 32, one having a higher specific gravity than that of the material of the pedestal base 30 is used.

In particular, as the pedestal base 30 and the vibration isolator 32, a combination of the pedestal base 30 made of high modulus vibration proof rubber and the vibration isolator 32 made of a rubber member having a high specific gravity cuts the vibration transmitted through the support column 21. Is effective in. That is, by using a high modulus anti-vibration rubber as the pedestal base 30, it is possible to absorb the weight impact sound of low frequency mainly and greatly improve the sound absorption and the vibration proof, and the pedestal base 30 and the receiving member. A rubber-based, asphalt-based, or plastic-based vibration-proof material is used as the vibration-proof material 32 to be interposed between the board 31 and the floor-base panel composed of a plurality of board materials, if necessary, between the boards. By inserting the damping material into the, it is possible to obtain the effect that mainly the high-frequency lightweight impact sound can be absorbed and the impact sound propagation can be effectively absorbed. Moreover, since the vibration-damping material 32 has a higher specific gravity than the material of the pedestal base portion 30, the initial sound-proofing effect can be maintained for a long time.

Further, the contact surface of the pedestal base 30 with the vibration isolator 32, the contact surface of the vibration isolator 32 with the pedestal base 30 or the receiving member 31, or the contact surface of the receiving member 31 and the vibration isolator 32, or the support member 21. The contact area between the pedestal base 30 and the receiving member 31 can be reduced by subjecting at least one of the respective surfaces to the unevenness, or a rubber-based material between the pedestal base 30 and the receiving member 31. Alternatively, by interposing an asphalt-based or plastic-based vibration damping material, it is possible to further suppress the vibration and sound propagation from the floor panel to the base slab to enhance the sound and vibration damping effect. The receiving member 31 is a receiving member that has a support shaft portion 33 that fits into the recess 26 of the support leg portion 2 on the upper portion, and the material thereof is usually the same as that of the upper support portion 20 and the support portion 21.

[Operation] In the present invention, the pedestal base of the pedestal 3 below the support leg 2
Floor impact noise can be reduced by interposing a vibration isolator 32 made of a material having a higher specific gravity than the pedestal base portion 30 between the pedestal 30 and the receiving member 31. In particular, the floor impact sound can be further reduced by using a rubber type vibration damping material as the pedestal base 30 of the pedestal and a rubber, plastic or asphalt high density gravity vibration damping sheet as the vibration damping material 32 on the upper side thereof. You can In this structure, the pedestal base 30 is used for low frequencies such as heavy floor impact sound, and the base material 30 is made of rubber, plastic, or asphalt for high frequency components such as lightweight floor impact sound. Since the vibration isolator 32 effectively acts to prevent the vibration propagation from the support leg 2 to the skeleton slab, the sound insulation performance can be further improved in combination with the sound absorption effect of the floor base panel 1 itself.

Further, in the preferred embodiment of the present invention, the damping material 11 attached to the lower surface of the floor base plate 10 functions to prevent the floor base panel 1 from vibrating due to the heavy impact sound generated on the floor surface. Therefore, as the vibration of the floor becomes smaller, the sound itself generated as an impact sound from the floor becomes smaller, so that the floor impact sound level in the downstairs can be reduced. As for the lightweight floor impact sound, the vibration control material 11 suppresses floor vibration as in the case of the heavy floor impact sound, and the sound absorbing material 12 fixed to the lower surface of the vibration control material 11 reduces the weight of the floor impact sound. By effectively absorbing the high frequency part of 250 Hz or more, it is possible to further reduce the floor impact sound level in the downstairs. As described above, by using the soundproof and vibration-isolated floor base device according to the present invention, not only the heavy floor impact sound but also the light weight floor impact sound can be reduced.

On the other hand, in the support leg 2 according to the present invention, since the upper support 20 and the column 21 are screwed together, the column 21 is rotated and the height of the support leg is adjusted by adjusting the screwing length. Even if there is unevenness on the surface of the base slab 4, the floor base can easily create a horizontal surface by placing the floor base apparatus and adjusting the height of the supporting legs. Moreover, as shown in FIG. 2, a vibration isolator 32, which is a separate body from the pedestal base 30, is interposed between the pedestal base 30 and the receiving member 31 that rotatably supports the support column 21. Therefore, even if the column part 21 is rotated, the base 30 of the pedestal is the base slab 4
Since it does not rotate on the surface and the column 21 can be rotated easily, the height can be adjusted more easily.

[Embodiment] The floor impact sound insulation performance of the embodiment of the present invention and that of the prior art is measured in a reinforced concrete building based on JIS A 1418 "Measuring method of floor impact sound level at construction site". The results obtained will be described.

The size of the basic floor laying device is 910 mm × 910 mm in both the embodiment of the present invention and the conventional example, 12 units are laid out in a room of about 20 m ² and plywood thickness of 12 mm is nailed on it, as a sound source Measured the floor impact sound level in a room downstairs using a bang machine as a heavy floor impact source and a tapping machine as a lightweight floor impact source.

As for the structure of the embodiment at this time, the floor base plate 10 is a particle board (thickness 20 mm), the damping material 11 is a sheet of crushed slag hardened with modified asphalt and covered with a non-woven fabric ( It has a thickness of 4 mm) and is attached to the floor base plate 10 with a vinyl acetate adhesive. The sound absorbing material 12 has a glass wool density of 32 kg / m ³ and a thickness of 50 mm, and the damping material 11 is fixed thereto by using fixing pins. The upper support portion 20, the support portion 21, and the receiving member 31 are made of nylon, the pedestal base portion 30 is a high modulus vibration isolating rubber made of styrene butadiene rubber having a hardness of 70 °, and the vibration isolating material 32 has a density of 2.2 g / A high specific gravity anti-vibration sheet (thickness 5 mm) of cm ³ is used. On the other hand, in the conventional example, as shown in FIG. 6, the floor base panel 1 is only a particle board (thickness: 20 mm), and the upper support portion is
2a and the pillar portion 2b are made of nylon, and the pedestal 2c is made of styrene-butadiene rubber having a hardness of 70 °.

FIG. 4 shows the floor impact sound level of the bang machine for the example and the conventional example, and FIG. 5 shows the floor impact sound level of the tapping machine for the example and the conventional example. In FIGS. 4 and 5, the horizontal axis represents the octave band center frequency (Hz) and the vertical axis represents the floor impact sound level (dB). The alternate long and short dash line represents the measured value of the example and the broken line represents the measured value of the conventional example. . In Fig. 4, the low-frequency part, which is a problem for heavy floor impact sound, is improved by about 5 dB. On the other hand, in FIG. 5, it can be seen that the effect of the soundproof and vibration-isolating floor lining device according to the present invention is clear by the improvement of 5 to 10 dB at a frequency of 125 Hz or more, which is a problem for the lightweight floor impact sound.

[Advantage of the Invention] As described above, the present invention can effectively reduce the floor impact sound. In particular, the wooden flooring has a great effect on the lightweight floor impact sound. Therefore, without using a carpet, the floor flooring sound can be reduced by using a sanitary flooring finish to reduce the lightweight floor impact sound and create a comfortable living environment. Can be produced. In addition, since the sound of heavy floor impact is also improved compared to the conventional products, a quiet house that does not suffer from the sound of children in an apartment can be realized. In particular, the vibration-damping material is made of at least one of rubber-based, asphalt-based, or plastic-based, which has a higher specific gravity than the base of the pedestal. Can be maintained.

[Brief description of drawings]

FIGS. 1 and 2 are partial sectional views showing an embodiment of the present invention, FIG. 3 is a perspective view of a floor base apparatus, and FIGS. 4 and 5 are measurement results of heavy floor impact sound level and light weight floor impact sound level. FIG. 6 is a partial sectional view of the conventional example. In the figure, 1 is a floor base panel, 2 is a support leg part, 3 is a pedestal, 10 is a floor base plate, 11 is a damping material, 12 is a sound absorbing material, 20 is an upper support part, 21 is a support part, 30 is a base part of the base. , 31 is a receiving member, and 32 is a vibration damping material.

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Morishi Kitagawa 1-36-1 Yoyogi, Shibuya-ku, Tokyo Inside Fukubi Chemical Industry Co., Ltd. Tokyo branch (72) Inventor Akira Saito 1-36 Yoyogi, Shibuya-ku, Tokyo No. 1 Fukubi Chemical Industry Co., Ltd. Tokyo Branch (72) Creator Kazuhiko Kase 1-36 Yoyogi, Shibuya-ku, Tokyo Within Fukubi Chemical Industry Co., Ltd. Tokyo Branch (56) Reference JP-A-56-97056 (JP, A) Actual opening 63-91645 (JP, U) Actual opening Sho 57-153141 (JP, U) Actual opening Sho 64-29437 (JP, U) Actual opening Sho 62-121360 (JP, U) Actual Kai 63-184934 (JP, U) JP 61-60224 (JP, B2)

Claims (3)

[Scope of utility model registration request] 1. A sound and vibration-proof floor base apparatus comprising a floor base panel, support legs for supporting the floor base panel, and a pedestal for receiving the support legs, wherein the base has a hardness of 50 °. ~ 90
With a pedestal base made of high modulus anti-vibration rubber that is °,
At least one of rubber-based, asphalt-based, or plastic-based having a receiving member placed thereon and having a higher specific gravity than the pedestal base between the pedestal base and the receiving member. A sound- and vibration-proof floor base equipment, characterized in that at least a vibration control material is arranged below the floor base panel with a vibration control material consisting of 2. A sound absorbing material is further arranged on the vibration damping material below the floor base panel.
Sound-proof and vibration-proof floor base equipment. 3. A support leg portion has a support portion, an upper support portion having a brim portion for receiving a floor base panel and a female screw portion screwed with an upper portion of the support portion, and the support leg portion is provided at an upper portion of the support portion. 2. A male threaded portion that is screwed into the female threaded portion is formed, and a recessed portion that receives a pedestal receiving member is formed in a lower portion of the column portion. Sound and vibration isolation floor base equipment.