KR200419673Y1 - Dual Floor Panel Support for Reducing Noise Transfer between Floors - Google Patents

Abstract

The present invention discloses a double floor support for reducing noise between floors by constructing a double floor.

The present invention is to divide the bottom layer into a hollow layer and the upper layer is installed to support the shock absorber and sound absorbing material in the hollow layer to reduce the noise between the layers. To this end, the present invention adheres an elastic body that absorbs vibration and absorbs shocks to the upper surface of the lower plate made of a plate, and a height adjusting part which is adjustable by fastening with bolts and nuts is attached to the upper surface thereof, and absorbs and shocks vibrations on the upper surface thereof. The present invention proposes a double bottom support for reducing noise between layers by adhering an elastic body that absorbs and adhering the upper support to the upper surface thereof.

In this way, the present invention minimizes the area where the floor impact sound generated at the top is transmitted to the lower layer generation, thereby reducing the noise between the floors and reducing vibration or impact with two elastic bodies bonded to the support. The sound absorbing material that obtains the insulation effect while preventing the resonance phenomenon is generated has a useful effect to improve the blocking performance of the floor impact sound.

Floor noise, lower support, upper support, height adjustment part

Description

Dual Floor Panel Support for Reducing Noise Transfer between Floors}

1 is a cross-sectional view showing a conventional wet double bottom structure.

Figure 2 is a cross-sectional view of the construction state of the double bottom support of the present invention.

Figure 3 is a plan view of a state in which the double bottom support of the present invention is constructed.

Figure 4 is an exploded perspective view showing a support according to a first embodiment of the present invention.

Figure 5 is a cross-sectional view showing a support of the first embodiment of the present invention.

Figure 6 is an exploded perspective view showing a support according to a second embodiment of the present invention.

Figure 7 is a sectional view showing a support of the second embodiment of the present invention.

Figure 8 is an exploded perspective view showing a support according to a third embodiment of the present invention.

9 is a sectional view showing a support of the third embodiment of the present invention.

* Description of the symbols for the main parts of the drawings *

10: lower support 11: groove

12: embossed portion 20: elastic body

21: groove 30: height adjustment unit

31: Bolt 32: Nut

40: upper support 41: sound absorbing material

42: screw 50: plywood

51: wall insulation material

The present invention relates to a double floor support for reducing the noise between floors, and more particularly, to reduce the impact noise transmitted from the double floor installed on the upper part of the slab in order to reduce the noise between floors such as apartment houses. It is about floor support.

As is well known, multi-unit houses such as apartments are mostly ondol type, unlike in Europe and the United States. Due to factors such as lower raw material costs and lower floor loads of construction companies, the floor structure is simpler and thinner. Floor cushions are installed to dampen noise and vibrations.

In order to prevent the interlayer noise caused by the impact sound, conventionally, a simple foaming agent such as glass wool, a sponge, styrofoam, or a suction plate and a vibration damping sheet based on rubber were used as the floor cushioning material.

However, the conventional floor cushioning material does not effectively exhibit the complex functions such as sound insulation, sound absorption, soundproofing, vibration suppression, dustproofing, and heat insulation required for a comfortable living environment, and thus does not effectively block interlayer noise through the floor after construction of the building.

1 illustrates a floor structure constructed in such a conventional apartment and apartment house.

As shown in the figure, in order to obtain noise blocking and insulation effect on the upper surface of the slab 100, construct a shock absorbing material 101 such as styrofoam, and install a waterproof film 102 so that moisture or moisture does not flow to the lower layer. The compaction layer 103 is constructed of a light weight foam on the upper surface to an appropriate thickness, and the heating pipe 104 connected to the boiler is fixed on the upper surface in a zigzag form.

In addition, the mortar is constructed to a suitable thickness so that the heating pipe 104 is embedded, and the finishing layer 105 is constructed, and a floor finishing material 106 such as a floor covering made of a synthetic resin material is installed on the upper surface thereof.

Such a floor structure contributes to the insulation and light weight of the building by the compaction layer 103 generated by generating a fine bubble, and can be somewhat reduced by the shock absorbing material 101, such as styrofoam, but recently reinforced The noise between floors of apartments, apartments, etc., is less than 58 kHz, which is equivalent to the sound of small objects falling down (sleeper sound), and 50 ㏈ or less, which is equivalent to the sound of children playing. There is a problem that does not sufficiently satisfy the regulation value for regulating such interlayer noise.

The object of the present invention devised to solve the above problems is to divide the bottom layer into a hollow layer and the upper layer, a support for absorbing the impact and a sound absorbing material is installed in the hollow layer to reduce the interlayer noise double floor support To provide.

In order to achieve the above object, the present invention has a plate-shaped lower support and an upper support, and a height adjustment portion is fixed so as to be able to adjust the height between these supports, the lower support and the height adjustment portion and height adjustment portion A double-bottom support for interlayer noise reduction is proposed, wherein an elastic body that absorbs shock and vibration is bonded between the upper and upper supports.

In this way, the present invention supports the finishing mortar by overlapping plywood to reduce the deflection and cracking of the mortar according to the load, and minimizes the area where the floor impact sound generated at the top is transmitted to the lower layer generation, as well as reducing the interlayer noise. Two elastic bodies bonded to the support to mitigate vibration or shock, and there is a useful effect of improving the shock-absorbing performance of the floor impact sound by installing a sound absorbing material to obtain a thermal insulation effect while preventing resonance phenomenon generated in the hollow layer provided with the support. .

Hereinafter, with reference to the accompanying drawings will be described a preferred embodiment of the present invention.

As shown, the present invention has a lower support 10 having a predetermined size so as to be stably installed on the upper surface of the slab, an elastic body 20 made of ethylene vinyl acetate (EVA) on the upper surface thereof, and an MC nylon on the upper surface thereof. (MC Nylon, Mono Cast Nylon) is made of a height adjustment unit 30 is coupled to the nut and the upper support 40, the same as the elastic body 20 and the lower support 10 on the upper surface thereof. Along with this, a plywood 50 having a predetermined size is fixed to the upper surface of the upper support 40.

4 and 5 show a first embodiment of the present invention.

As shown in the lower support 10 and the upper support 40 is a nylon monomer (caprolactam) by polymerization and molding under atmospheric pressure to excellent heat resistance, abrasion resistance, chemical resistance, mechanical strength and durability, the upper installed on the upper It has strength to sufficiently support the bottom layer and its heavy weight. The lower support 10 and the upper support 40 is molded into a disc having an appropriate thickness, preferably made of a height of 5 to 10 mm, a diameter of 80 to 120 mm.

In addition, the elastic body 20 is an ethylene vinyl acetate (EVA) material to sufficiently alleviate the impact applied from the top, preferably a circle having a size of about 15 to 20 mm in height and about 30 to 70 mm in diameter. It is made in plate shape.

In addition, the height adjuster 30 is a bolt 31 and the nut 32 formed of the same MC nylon material as the support (10, 40) to a smaller diameter than the lower support 10 and the upper support 40, 0 Fasten the bolt 31 and the nut 32 so that the height can be adjusted about 20 mm.

In addition, the plywood 50 has a width of 8.5 mm and a length of 910 mm x 1810 mm, and separates the finishing mortar layer and the wall from the top thereof to minimize the impact sound transmission. The insulating material 51 is provided.

The present invention made of such a configuration is formed by the MC nylon material, the lower support 10 and the upper support 40, and in the same way to form the bolt nylon and nut (32) made of MC nylon fastening the height adjustment The part 30 is manufactured and the elastic body 20 is shape | molded with ethylene vinyl acetate.

The elastic body 20 is firmly adhered to the upper surface of the lower support 10 with an adhesive such as a thermosetting resin and a thermoplastic resin, and the height adjusting part 30 to which the bolt 31 and the nut 32 are fastened to the upper surface of the elastic body 20. ) Is adhered with an adhesive, and the support 1 is provided to firmly adhere the elastic body 20 and the upper support 40 to the upper surface of the height adjusting part 30, that is, the nut 32.

In order to construct a double floor in a multi-family house, apartment, etc. by using the support 1, the support 1 is arranged on the upper surface of the slab 2 at regular intervals and fixed with an adhesive such as a sealant. Such sealant adhesion conditions are preferably within 30 minutes of drying time based on 50% relative humidity at a temperature of 23 ℃.

As shown in FIG. 3, the support 1 is arranged in a lattice shape of horizontal and vertical 450 mm × 360 mm, which is arranged at 450 mm in the short side direction of the plywood 50 and 360 mm in the long side direction. do. Along with this, the height of the upper support 40 is determined by checking the height of the support 1 arranged so that the upper layer to be installed on the horizontal is installed horizontally, thereby increasing the height of the upper support 40 by rotating the nut 32. , If the height of the support (1) is high, the nut 32 is rotated to lower the height of the upper support (40) to match the height of each support (1) all horizontally.

Subsequently, a sound absorbing material 41, such as glass wool, is filled in order to prevent insulation and resonance between the supports 1, but may be replaced with a material having a heat permeability equivalent to that of glass wool, and plywood on the top of the support 1 (50) is to be constructed, and the overlapping construction of the 8.5 mm thick plywood (50) so as to ensure the walking of the worker according to the subsequent work, as well as to have a structural stability according to the construction of the upper layer and then screw (42) By firmly fixing the plywood 50 and the upper support 40, it is possible to effectively distribute the vibration or shock to reduce the inter-layer noise in the support.

In addition, in order to prevent cracking of the mortar in the upper layer in which the plywood 50 is constructed, the adhesive tape is bonded to the joint part, more specifically, an OPP tape (Oriented Poly Propylene), and the tiles of the plywood 50 are arranged in a tiled manner. In order to minimize the impact sound transmitted to the periphery, that is, the side wall insulation material 51 made of polyethylene is bonded as shown in FIG. 2.

Subsequently, the heating pipe is installed together with the construction of the finishing mortar on the upper surface of the plywood 50, and then a floor finishing material made of a synthetic resin material is constructed.

In order to evaluate the floor impact sound blocking performance of the present invention, the test construction was performed, and then the reduction performance was evaluated. The comparison targets were the manslab state in which nothing was applied to the slab and the floor impact sound constructed in the double floor structure of the present invention. Measured. The floor impact sound was measured for each frequency band according to KSF 2863-1 and KSF 2863-2, and a single numerical evaluation index was calculated in order to compare and evaluate them.

Frequency Heavy impact sound Light impact Manslav structure Double floor structure Manslav structure Double floor structure 63 88.6 81.1 - - 125 61.9 61.4 71.2 60.5 250 58.2 51.7 73.9 54.0 500 52.0 36.1 76.9 52.3 1000 - - 78.7 51.6 2000 - - 78.4 48.8 Single Score Evaluation Index 58 51 76 50

As described above, the double bottom structure of the present invention, which is divided into a hollow layer and an upper layer, absorbs shock and vibration by two elastic bodies coupled between upper and lower supports, thereby reducing noise and vibration transmitted to the lower layer, as well as sound absorbing material (41). The noise is absorbed by) to reduce the noise between floors.

6 and 7 show a second embodiment of the present invention.

As shown therein, the groove 11 is formed in the center of the lower support 10 and the upper support 40, and the groove 21 is formed at an appropriate depth on one surface of the elastic body 20 to support and the elastic body 20. To facilitate the coupling, the height adjustment unit 30 is the same as the first embodiment, so the description of the structure will be omitted.

In the second embodiment, the lower support 10 and the elastic body 20 are adhered to each other by inserting the elastic body 20 having the recess 21 coated with an adhesive into the groove 11 of the lower support 10. The upper support 40 and the elastic body 20 are adhered to each other by inserting the elastic body 20 having the grooves 21 coated with the adhesive into the grooves 11 of the upper support 40.

In this way, by firmly bonding the elastic body 20, the groove 21 is formed so as not to be separated from the groove 11 of the lower support 10 and the upper support 40 to absorb the vibration and impact by the elasticity of the elastic body 20. Of course, a plurality of supports (1) formed with spaces due to the grooves (11, 21) in a lattice shape as in the first embodiment, and then the plywood 50 and the wall insulation material 51 is constructed and then finished mortar And heating piping.

In the second embodiment, when vibration or shock is transmitted from the top, the shock or vibration is reduced by the elastic body 20, and the shock or vibration is relieved by the space parts of the grooves 11 and 21. The noise between the floors can be further reduced.

In addition, a third embodiment of the present invention is shown in Figs.

As shown in the third embodiment of the present invention, the lower support 10 and the upper support 40 to form an embossed portion 12 protruding with the same diameter as the outer diameter of the elastic body 20, this groove 11 ) May be selectively formed, and the elastic body 20 may be selectively applied to the elastic body 20 in which the disc 21 of the first embodiment or the recess 21 of the second embodiment is formed.

The present invention as described above is attached to the embossed portion 12 by inserting an adhesive coated elastic body 20 is bonded in a rigid structure that does not deviate from the lower support 10 and the upper support 40 to install the support 1 It can be stabilized.

In this way, the present invention supports the finishing mortar by overlapping plywood to reduce the deflection and cracking of the mortar according to the load, and minimizes the area where the floor impact sound generated at the top is transmitted to the lower layer generation, as well as reducing the interlayer noise. Two elastic bodies bonded to the support to mitigate vibration or shock, and there is a useful effect of improving the shock-absorbing performance of the floor impact sound by installing a sound absorbing material to obtain a thermal insulation effect while preventing resonance phenomenon generated in the hollow layer provided with the support. .

In addition, it is possible to reduce the air shortening and construction costs, since the construction of the bubble concrete as in the prior art, it is possible to adjust the height there is a useful effect that is easily applied to the reconstruction site, poor foundation conditions.

Claims (4)

In the support made of a plate-shaped lower support 10 and the upper support 40, and the height adjustment portion 30 is fixed to enable height adjustment between the support (10, 40), Dual-layer noise reduction double, characterized in that the elastic support 20 is absorbed between the lower support 10 and the height adjustment unit 30 and the height adjustment unit 30 and the upper support 40 to absorb shock and vibration. Floor support. The method of claim 1, The support is a double bottom support for interlayer noise reduction, characterized in that the lower support 10 is formed with a groove 11 and the upper support 40 and the elastic body 20 formed with the groove 21 is adhered. The method of claim 1, Double bottom support for interlayer noise reduction, characterized in that the lower support 10 and the upper support 40 is formed with an embossed portion 12 protruding with the same diameter as the outer diameter of the elastic body 20. The method of claim 1, Double floor support for interlayer noise reduction, characterized in that the upper support 40 is superimposed on the top of the plywood (50) to be installed by fixing them with a screw (42).

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