KR102667833B1 - Floor buffering structure for reducing interlayer noise - Google Patents

Abstract

The present invention relates to a floor buffering structure for reducing inter-floor noise including a soundproofing device, which is configured by stacking a sound-absorbing board and a support board and can have a plurality of soundproofing devices inside receiving holes formed to pass through a sound-absorbing board, thereby minimizing backward slip or residual deformation to secure usability and effectively reduce floor impact noise. The floor buffering structure for reducing inter-floor noise including a soundproofing device of the present invention is installed on the upper side of a floor slab to reduce inter-floor noise and comprises: the sound-absorbing board having the receiving holes with opened upper and lower sides formed to pass therethrough at one or more positions; the soundproofing device formed of soundproofing rubber so as to support a floor load and inserted inside the receiving holes of the sound-absorbing board; and the support board stacked on the upper side of the sound-absorbing board and supported by the soundproofing device. The soundproofing device is formed in an inverted arch shape in which a hollow is formed to horizontally pass therethrough and each of upper and lower surfaces is a flat surface, and formed to have a narrower width downward to form a gap between the receiving holes and the soundproofing device.

Description

{Floor buffering structure for reducing interlayer noise}

The present invention is composed of a sound-absorbing board and a support board stacked, and a plurality of vibration isolation holes are provided inside the receiving hole formed through the sound-absorbing board, thereby ensuring usability by minimizing sagging or residual deformation and effectively reducing floor impact noise. This is about a floor buffering structure for reducing inter-floor noise that is equipped with an anti-vibration hole.

In multi-unit housing such as apartments, the generation of inter-floor noise is inevitable due to the structure in which each unit is stacked up, down, left, and right. As disputes between neighbors increase due to this, the issue of inter-floor noise is emerging as a serious social problem.

Interfloor noise is mainly caused by floor impact noise, which is classified into light impact noise due to light and hard impacts and heavy impact noise due to heavy and soft impacts.

Light impact sounds have no reverberation, so the discomfort is relatively low. On the other hand, heavy impact sounds tend to cause discomfort and mental pain because they leave a reverberation, which is a particular problem in apartment complexes.

Conventionally, in order to reduce floor impact noise, in Publication Patent No. 10-2018-0029335, etc., a buffer material, a mortar layer, and a finishing material were stacked in order on the upper part of the concrete slab. At this time, in order to improve floor impact sound blocking performance, a lot of cushioning materials with low density and low dynamic elastic modulus were used. However, soft cushioning materials have large deflection and residual deformation under load, reducing usability, and there is a risk of cracks occurring in the mortar.

Registration Patent No. 10-1712986 discloses a technology for preventing inter-floor noise by installing a spring in the center of a modular flooring material to exert a buffering effect. However, the above technology requires a bushing or fastening boss to install the spring, and a gap must be formed inside the flooring, so the configuration is complicated. In addition, not only does the strain rate differ depending on where the occupant steps, but each module moves individually, which reduces the feeling of walking.

In order to solve the above problems, the present invention seeks to provide a floor cushioning structure for reducing inter-floor noise that is equipped with a vibration isolation hole that can effectively reduce floor impact noise while ensuring usability by minimizing floor deflection or residual deformation.

The present invention according to a preferred embodiment is installed on the upper part of the floor slab to reduce inter-floor noise, and includes a sound-absorbing board having open receiving holes at the top and bottom penetrating at at least one position; An anti-vibration hole formed of anti-vibration rubber to support the floor load and inserted into the receiving hole of the sound-absorbing board; and a support board stacked on top of the sound-absorbing board and supported by the vibration isolator. The vibration isolator is formed with a hollow portion penetrating in the horizontal direction, and the upper and lower surfaces are formed in an inverted arch shape with flat surfaces, so that the width narrows toward the bottom, so that a gap is formed between the receiving hole and the vibration isolator. It provides a floor buffering structure equipped with a vibration isolation hole to reduce noise between floors.

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The present invention according to another preferred embodiment provides a floor cushioning structure for reducing inter-floor noise with a vibration isolator, characterized in that at least two support protrusions are formed protruding from the lower surface of the vibration isolator.

The present invention according to another preferred embodiment provides a floor cushioning structure for reducing inter-floor noise equipped with a vibration isolator, characterized in that a plurality of rows of horizontal first corrugated grooves are formed on both outer surfaces of the vibration isolator.

The present invention according to another preferred embodiment provides a floor cushioning structure for reducing inter-floor noise equipped with a vibration isolator, characterized in that a plurality of rows of horizontal second corrugated grooves are formed on both inner surfaces of the hollow portion of the vibration isolator. .

The present invention according to another preferred embodiment provides a floor cushioning structure for reducing inter-floor noise equipped with a vibration isolator, wherein the hollow portion of the vibration isolator is divided into upper and lower parts by at least one horizontal partition.

The present invention according to another preferred embodiment provides a floor cushioning structure for reducing inter-floor noise with a vibration isolator, wherein the vibration isolator is further provided with an attenuation pad on at least one of the upper and lower portions.

According to the present invention, it is installed on the upper part of a concrete floor slab to reduce inter-floor noise, and is composed of a sound-absorbing board and a support board sequentially stacked, and a plurality of vibration isolation holes are provided inside the receiving hole formed through the sound-absorbing board to reduce inter-floor noise. A floor cushioning structure can be provided.

Accordingly, since the vibration stop supports the floor load at multiple points, sagging or residual deformation can be minimized to ensure walking comfort and usability.

In addition, when the vibration isolator is deformed beyond a certain range, the sound-absorbing board contributes to the cushioning of floor impact sound and a complex attenuation is achieved, so the floor impact sound can be effectively reduced with a simple overall configuration.

In addition, if the support board is made of a hard material, the upper load can be distributed and supported by the surrounding vibration isolators, so the entire floor structure can move as one, increasing the buffering effect.

Figure 1 is a perspective view showing the coupling relationship of a floor cushioning structure for reducing inter-floor noise equipped with a vibration isolator of the present invention.
Figure 2 is a cross-sectional view showing the installation state of a floor buffering structure for reducing inter-floor noise equipped with a vibration isolation device of the present invention.
Figure 3 is a cross-sectional view showing an embodiment provided with an insulation board.
Figure 4 is a perspective view showing a vibration isolation hole in which a hollow portion is formed.
Figure 5 is a perspective view showing an inverted arch-shaped vibration stop.
Figure 6 is a perspective view showing a vibration stop provided with a support protrusion.
Figure 7 is a perspective view showing the vibration stop in which the first corrugated groove is formed.
Figure 8 is a perspective view showing a vibration stop in which a second corrugated groove is formed.
Figure 9 is a perspective view showing a vibration stop in which first and second corrugated grooves are formed.
Figure 10 is a perspective view showing a vibration isolation port provided with a horizontal partition.
Figure 11 is a perspective view showing a vibration isolation port provided with a horizontal partition and a vertical partition.
Figure 12 is a perspective view showing a vibration isolation device equipped with a damping pad.

Hereinafter, the present invention will be described in detail according to the accompanying drawings and preferred embodiments.

Figure 1 is a perspective view showing the coupling relationship of a floor buffering structure for reducing inter-floor noise equipped with a vibration isolator of the present invention, and Figure 2 is a cross-sectional view showing the installation state of a floor buffering structure for reducing inter-floor noise equipped with a vibration isolator of the present invention. , and Figure 3 is a cross-sectional view showing an embodiment provided with an insulation board.

As shown in Figures 1 and 2, the floor buffering structure for reducing inter-floor noise equipped with a vibration isolation device of the present invention is installed on the upper part of the floor slab (1) to reduce inter-floor noise, and has a receiving hole that is open at the top and bottom. (211) a sound-absorbing board (21) formed through at least one position; An anti-vibration hole (22) formed of anti-vibration rubber to support the floor load and inserted into the receiving hole (211) of the sound-absorbing board (21); And a support board (23) stacked on top of the sound-absorbing board (21) and supported by the vibration isolator (22); It is characterized by being composed of.

The purpose of the present invention is to provide a floor cushioning structure for reducing inter-floor noise that is provided with a vibration isolation hole that can effectively reduce floor impact noise while ensuring usability by minimizing floor deflection or residual deformation.

The floor buffering structure (2) of the present invention is installed on the upper part of the reinforced concrete floor slab (1) to reduce inter-floor noise.

Lightweight foam concrete (3), finishing mortar (4), and finishing material (5) may be sequentially stacked on the upper part of the floor cushioning structure (2).

The floor cushioning structure (2) is composed of a sound-absorbing board (21) and a support board (23) sequentially stacked.

The sound-absorbing board 21 may be made of a fiber sound-absorbing material with excellent sound insulation and sound absorption performance, such as glass wool.

The sound-absorbing board 21 is formed with at least one receiving hole 211 penetrating upward and downward through the sound-absorbing board 21.

The receiving hole 211 may be formed in a circular or polygonal shape in plan view.

The vibration isolation hole 22 is inserted into the receiving hole 211 of the sound-absorbing board 21.

For this purpose, the vibration isolation hole 22 can be configured to have a height equal to the thickness of the sound-absorbing board 21.

The vibration isolation hole 22 is in close contact with the lower surface of the support board 23 while accommodated inside the receiving hole 211.

The vibration isolation hole 22 has an upper surface formed in a shape corresponding to the receiving hole 211, so that the upper part of the receiving hole 211 can be closed.

Figure 1 shows an embodiment in which the upper surface of the vibration isolator 22 and the receiving hole 211 have a rectangular shape in plan.

It is preferable to use anti-vibration rubber as the anti-vibration tool 22.

In conventional coil springs, the natural vibration of the spring itself is induced in a high vibration area, resulting in a surging phenomenon that causes high-frequency elastic vibration. In contrast, anti-vibration rubber does not cause surging and is effective in reducing floor impact noise.

The sound-absorbing board 21 has very low rigidity, so significant residual deformation or sagging may occur when walking. However, since the vibration isolator 22 exhibits an appropriate level of rigidity, it is possible to secure a walking feeling by supporting the floor load at a plurality of points.

The support board 23 is stacked on top of the sound absorption board 21.

The support board 23 is preferably made of a hard synthetic resin board such as PP in order to ensure usability such as walking comfort.

The present invention relates to a floor shock absorbing structure (2) with a simple overall structure. In the initial stage when the floor structure is excited, the vibration isolator (22) supports and attenuates the load to reduce floor impact noise. And when a large-scale impact is applied and the vibration isolator 22 is compressed and deformed beyond a certain range, the sound-absorbing board 21 secondarily contributes to cushioning the floor impact sound, thereby achieving complex attenuation.

The support board 23 uses a hard synthetic resin material such as PP to transfer the upper load to the surrounding vibration isolation hole 22 to provide distributed support. Accordingly, the floor structure moves as a whole, thereby ensuring a sense of walking and increasing the cushioning effect.

As shown in FIG. 3, an insulation board 24 may be provided at the lower part of the sound-absorbing board 21 to ensure insulation performance.

The insulation board 24 may be made of EPS, which has excellent insulation performance and shock absorption performance. Accordingly, the insulation board 24 can also contribute to reducing floor impact noise together with the sound-absorbing board 21.

The insulation board 24 is made of a low-density material, so when a load is applied, significant deflection and residual deformation may occur. Therefore, when the insulation board 24 is provided at the lower part of the sound-absorbing board 21, a receiving hole is formed through the insulation board 24 at a position corresponding to the receiving hole 211 of the sound-absorbing board 21, and the The vibration isolation hole 22 can be configured to be accommodated through the receiving hole of the sound-absorbing board 21 and the insulation board 24.

In this case, the vibration isolation hole 22 can be configured to have a height equal to the combined thickness of the insulation board 24 and the sound absorption board 21.

Figure 4 is a perspective view showing a vibration isolation hole in which a hollow portion is formed.

As shown in FIG. 4, the vibration isolator 22 may have a hollow portion 221 formed therethrough in the horizontal direction.

In order to further increase the shock absorption effect of the vibration isolator 22, a hollow portion 221 may be formed in the vibration isolator 22.

At this time, when the hollow part 221 is closed, the air inside the hollow part 221 is trapped and cannot escape, so the shock absorbing effect for momentary shock may not be properly exerted.

Therefore, the hollow part 221 is formed to penetrate the vibration isolating hole 22 in the horizontal direction, so that both sides of the hollow part 221 are opened and the air inside the hollow part 221 is released into the receiving hole 211 when upper pressure or impact is applied. ) It can be made to absorb the shock by exiting to the side.

As shown in FIG. 4, the vibration isolation hole 22 may be formed to become narrower in width toward the bottom.

Since the upper surface of the vibration isolation hole 22 must support the load of the support board 23, the larger the area, the more advantageous. In contrast, when the lower surface of the vibration isolator 22 is in contact with the floor slab (1), the upper impact is better transmitted to the floor slab (1) through the vibration isolator (22).

Accordingly, the vibration isolating hole 22 may have the upper surface formed in the same shape as the receiving hole 211, but may be formed with a width narrowing toward the lower part.

In addition, the vibration isolator 22 is a member that receives a compressive force, and if the width direction deformation is restricted when the compressive force is applied, the strength and rigidity may increase significantly, and the effect of reducing floor impact noise may not be properly achieved.

Accordingly, if the width of the vibration isolator 22 is formed to become narrower toward the bottom, a gap is formed between the receiving hole 211 and the vibration isolator 22, so that the vibration isolator 22 is not restrained. Axial deformation is allowed, thereby reducing floor impact noise.

However, it is preferable that the upper and lower surfaces of the vibration isolator 22 are flat so that the load can be supported by the vibration isolator 22.

Figure 5 is a perspective view showing an inverted arch-shaped vibration stop.

As shown in FIG. 5, the vibration isolator 22 may be formed in an inverted arch shape where the upper and lower surfaces are flat surfaces.

The vibration isolation hole 22 can be formed in an inverted arch shape to stably support the load at the top.

Accordingly, the vibration isolation hole 22 forms an inverted arch shape with its upper end closed and connected, so that it can be quickly restored to its original state after the load or impact is removed, thereby preventing residual deformation of the floor structure.

Figure 6 is a perspective view showing a vibration stop provided with a support protrusion.

As shown in FIG. 6, at least two support protrusions 222 may be formed to protrude from the lower surface of the vibration isolator 22.

In another embodiment to minimize shock transmission by the vibration isolator 22 by reducing the contact area between the lower surface of the vibration isolator 22 and the floor slab 1, a support protrusion 222 is placed on the lower surface of the vibration isolator 22. ) can be extruded.

The support protrusion 222 may be directly supported on the upper surface of the floor slab (1).

The support protrusions 222 may be provided on both sides of the lower surface of the vibration isolator 22 to be spaced apart from each other (FIG. 6). In this case, since a predetermined space is formed between the supporting protrusions 222 spaced apart from each other, an additional shock absorption effect can be exerted by the air layer inside the space.

At this time, the inner surfaces of the support protrusions 222 on both sides can be formed in an arch shape to stably support the load.

Figure 7 is a perspective view showing the vibration stop in which the first corrugated groove is formed.

As shown in FIG. 7, horizontal first corrugated grooves 223 may be formed in a plurality of upper and lower rows on both outer surfaces of the vibration isolator 22.

A plurality of rows of first corrugated grooves 223 may be formed on both outer surfaces of the vibration isolator 22 to have a corrugated appearance.

As a result, it can achieve cushioning performance similar to that of a coil spring and minimize residual deformation.

That is, when an impact is applied to the upper surface of the floor, greater deformation occurs in the concave first corrugated groove 223, thereby increasing the cushioning effect.

In addition, since the space between the concave first corrugated grooves 223 is filled with air, when the vibration isolator 22 is compressed and deformed, the first convex portions 224 at the top and bottom of the first corrugated groove 223 pressurize the air between them. do. At this time, additional cushioning performance is achieved by the trapped air between the first convex portions 224, and the vibration isolator 22 is immediately restored to its original state, thereby reducing residual deformation.

FIG. 8 is a perspective view showing a vibration stop in which the second corrugated groove is formed, and FIG. 9 is a perspective view showing the vibration stop in which the first and second corrugated grooves are formed.

As shown in FIG. 8, second horizontal corrugated grooves 225 may be formed in a plurality of upper and lower rows on both inner surfaces of the hollow portion 221 of the vibration isolator 22.

When an impact occurs at the top, compressive force is applied to the air layer inside the hollow portion 221. At this time, by forming horizontal second corrugated grooves 225 on both inner surfaces of the hollow portion 221, the air inside the second corrugated groove 225 is pressurized to provide additional shock absorbing performance. .

In addition, as the second convex portion 226 between the upper and lower second corrugated grooves 225 is bent and deformed, additional impact energy can be consumed, thereby increasing the cushioning effect.

As shown in FIG. 9, if necessary, a first corrugated groove 223 may be formed on the outside of the vibration isolator 22, and a second corrugated groove 225 may be formed on the inner side.

FIG. 10 is a perspective view showing a vibration isolation port provided with a horizontal partition, and FIG. 11 is a perspective view showing a vibration isolation port provided with a horizontal partition and a vertical partition.

As shown in FIGS. 10 and 11, the hollow portion 221 of the vibration isolator 22 may be divided into upper and lower parts by at least one horizontal partition 227.

If the hollow part 221 is divided into upper and lower parts, when an upper shock occurs, the upper hollow part 221 can first absorb some of the shock. And the remainder is transferred to the lower hollow part 221 through the horizontal partition 227, so the shock can be absorbed secondarily in the lower hollow part 221, thereby increasing the dustproof effect.

At this time, a portion of the impact is dissipated due to bending deformation of the horizontal partition wall 227, thereby maximizing the anti-vibration effect.

Figure 10 shows an embodiment in which one horizontal partition 227 is provided and the hollow part 221 is divided into two upper and lower parts. However, depending on the size of the vibration isolation hole 22, etc., two or more horizontal partitions 227 may be provided so that the hollow portion 221 may be divided into three or more.

As shown in FIG. 11, in some cases, a vertical partition 228 may be formed to reinforce the rigidity of the vibration isolator 22.

The horizontal partition 227 and/or the vertical partition 228 may be formed together with the first and second corrugated grooves 223 and 225.

Figure 12 is a perspective view showing a vibration isolation device equipped with a damping pad.

As shown in FIG. 12, the vibration isolator 22 may be further provided with a damping pad 229 on at least one of the upper or lower portion.

The damping pad 229 may be provided at the top or bottom of the vibration isolator 22, or at the top and bottom, and may serve to dampen vibration. That is, the vibration isolator 22 functions as a spring, and the damping pad 229 functions as a damper, thereby reducing inter-floor noise through a combined effect.

In particular, since the attenuation pad 229 is made of a different material from the vibration isolator 22, frequency disturbance occurs when excited, which is effective in reducing inter-floor noise.

The damping pad 229 can be made of EVA material.

EVA (ethylene-vinyl acetate copolymer) is a polymer obtained by copolymerizing ethylene and vinyl acetate monomer and has high impact resistance and shock absorption.

1: Floor slab 2: Floor buffer structure
21: sound-absorbing board 211: receiving hole
22: Bangjin-gu 221: Holloway
222: Supporting protrusion 223: First wrinkle groove
224: first convex portion 225: second wrinkle groove
226: second convex portion 227: horizontal bulkhead
228: vertical bulkhead 229: damping pad
23: support board 24: insulation board
3: Lightweight foam concrete 4: Finishing mortar
5: Finishing material

Claims (9)

It is installed on the upper part of the floor slab (1) to reduce interfloor noise,
A sound-absorbing board (21) with a receiving hole (211) open at the top and bottom formed through the at least one position;
An anti-vibration hole (22) formed of anti-vibration rubber to support the floor load and inserted into the receiving hole (211) of the sound-absorbing board (21); and
A support board (23) laminated on the sound-absorbing board (21) and supported by the vibration isolator (22); It consists of,
The vibration isolator 22 is formed with a hollow portion 221 penetrating in the horizontal direction, and is formed in an inverted arch shape where the upper and lower surfaces are flat surfaces, so that the width narrows toward the bottom, thereby forming the receiving hole 211 and the vibration isolator 22. ) A floor buffer structure for reducing inter-floor noise with a vibration isolation hole, characterized in that a gap is formed between the floors.
delete delete delete In paragraph 1:
A floor cushioning structure for reducing inter-floor noise with a vibration isolator, characterized in that at least two support protrusions 222 are protruding from the lower surface of the vibration isolator 22.
In paragraph 1:
A floor cushioning structure for reducing inter-floor noise with a vibration isolator, characterized in that a plurality of rows of horizontal first corrugated grooves 223 are formed on both outer surfaces of the vibration isolator 22.
In paragraph 1:
A floor cushioning structure for reducing inter-floor noise with a vibration isolator, characterized in that a plurality of rows of horizontal second corrugated grooves 225 are formed on both inner surfaces of the hollow portion 221 of the vibration isolator 22.
In paragraph 1:
A floor cushioning structure for reducing inter-floor noise with a vibration isolator, characterized in that the hollow portion 221 of the vibration isolator 22 is divided into upper and lower parts by at least one horizontal partition 227.
In paragraph 1:
The floor cushioning structure for reducing inter-floor noise with a vibration isolator, characterized in that the vibration isolator 22 is further provided with an attenuation pad 229 on at least one of the upper or lower portion.

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