KR101076381B1 - A preventive material for the floor impact sound - Google Patents

Abstract

The present invention relates to an interlayer noise preventing material, by guiding the sound energy generated while sound waves such as the interlayer impact and noise of a building vibrate to a vortex-shaped partition wall to maximize the sound absorption effect by the membrane vibration phenomenon, interlayer impact, noise In addition to reducing the thickness and density of the sound absorbing material to reduce the construction cost, and relates to an interlayer noise prevention material that can further improve the construction workability.

The present invention is made of a rectangular synthetic resin plate material or rubber plate material is disposed on the lower surface of the moisture-proof waterproof coating treated soundproof plate, and gradually recessed toward the center from the edge to form an upper space spaced apart from the soundproof plate, the sound wave is said A sound absorbing opening part having a long hole shape is provided to allow the upper air space to flow into the lower air layer. The sound absorbing plate absorbs sound waves by causing a vortex phenomenon of sound waves in the flaw openings, and passes through the air layer to exhaust the sound absorbing plate. Mounted on the lower surface, extending radially from the center to the edge, spaced at equal angles, provided with a hollow frame with a rectangular edge, consisting of a guide frame protruding downward from both ends of the sound absorbing plate formed The upper surface of the guide frame in contact with the lower surface is formed in a step shape, the bottom surface is flat It includes a support provided.

 Interlayer, Shock, Vibration, Noise, Sound Absorbing Material

Description

A preventive material for the floor impact sound}

The present invention relates to an interlayer noise preventing material, by guiding the sound energy generated while sound waves such as the interlayer impact and noise of a building vibrate to a vortex-shaped partition wall to maximize the sound absorption effect by the membrane vibration phenomenon, interlayer impact, noise In addition to reducing the thickness and density of the sound absorbing material to reduce the construction cost, and relates to an interlayer noise prevention material that can further improve the construction workability.

In general, sound absorption means that an object absorbs sound, and is absorbed with porous porous sound absorbing material, or vibration of a plate made of metal plate or synthetic resin to consume sound energy. It is widely known that the sound absorption is carried out by using the 膜 振動.

Accordingly, the present applicant has invented Korean Patent Application No. 10-2004-0062641 "Interlayer Shock Vibration Sound Absorber and Manufacturing Method thereof", and the conventional invention is to absorb the impact vibration between layers using the synthetic resin plate or rubber sheet material.

In the present invention of the present applicant, as shown in FIG. 1, one or more spirals 11 are formed on a building material such as a synthetic resin sheet and a rubber sheet, and the central portion 12 of the formed spirals is formed at a constant depth or height. By recessing or protruding, the spiral 11 stepped vibration vibration plate 13 is formed, and an upper space portion 121 and a lower space portion 122 are provided.

The conventional invention configured as described above attempts to minimize the interlayer noise by amplifying the sound absorbing effect by using membrane vibration (vibration and spring) phenomenon and extinguishing the shock vibration noise energy, but the sound absorbing effect according to the heavy impact sound is not uniform, and the space part There is a problem that the thickness becomes thick depending on the formation.

Therefore, an object of the present invention, by improving the sound absorbing material to further amplify the sound absorbing effect, by dispersing and attenuating the impact energy applied to the floor surface of the multi-layered building to generate vibration and noise due to the impact applied to the floor surface Minimized, but to provide an interlayer noise prevention material that can obtain the sound-absorbing effect of the impact shock significantly higher than the conventional invention.

Another object of the present invention is to reduce the space portion of the conventional invention, by providing a sound absorbing opening portion provided on the sound absorbing plate itself to effectively remove the noise, lower the thickness, density of the sound absorbing material, and can minimize the construction cost of the interlayer noise prevention material In providing.

  The present invention for this purpose, in the interlayer noise prevention material 100 for preventing the inter-layer impact and vibration of the building, is located on the top floor, made of a square, moisture-proof and waterproof coating soundproof plate 110, and synthetic resin of the square The support member 111 is formed of a plate or rubber plate, located at the lower portion of the sound insulation plate 110 and protruding upward from the center portion 122 formed to be gradually recessed from the edge toward the center to be fixed to the sound insulation plate ( An upper space portion 121 spaced apart from the upper portion 110 is formed, and a sound absorption opening portion 123 having a long hole shape is provided to allow sound waves to flow into the lower air layer from the upper space portion 121. A sound absorbing plate 120 which absorbs sound waves by causing a vortex phenomenon of sound waves at 123, passes through the air layer and is exhausted, and is mounted on a lower surface of the sound absorbing plate 120 and radially from the center to the edges. It is extended to, and is spaced at an equal interval, and is formed in a hollow frame having a rectangular edge to form a plurality of space portion 131 consisting of a triangle between the center and the edge, and both ends protrude downward to provide an empty space Guide frame 132 is formed to form a groove to be formed, a plurality of diaphragm 133 to block the gap between the groove portion is formed, the guide which is in contact with the lower surface of the sound absorbing plate 120 formed to be gradually recessed toward the center from the edge The upper surface of the frame 132 is formed in a stepped staircase, the height of the edge is provided to be lowered toward the center, and the bottom surface is flat, so that the sound waves passing through the sound absorbing plate 120 can stay and erase the air layer. The support 130 to be formed, and made of the same material as the sound absorbing plate 120, is inserted into the corner of the support 130, "a" type or circle Comprising a protruding portion 140 is formed in the shape, the sound-absorbing opening portion 123 is located on a plurality of virtual radiation (a) is formed at an isometric angle with respect to the center point of the central portion 122 and A point spaced apart from the center point of the central portion 122 by the same distance as the starting point 124 to form a long hole that rotates from the starting point 124 toward the central portion 122, between the virtual radiation (a) One virtual inner radiation (b) is provided in the connection between the radiation (a) and the inner radiation (b) is made by the bending section, one sound-opening opening portion 123a formed by the bending section is connected It is configured to form a straight line as the length of the bending node gradually decreases toward the center portion 122 by the angle of the angle between the outermost bending node starting from the starting point 124 and the folding node as the obtuse angle. However, the starting point 124 is characterized in that the end point 125 is provided with the innermost bending end in the radiation (a) is located.

At this time, the sound insulation plate 110 is projected discretely in the lower portion, it characterized in that the protrusion 112 is increased toward the center.

At this time, the lower portion of the sound insulating plate 110 and the upper edge side of the support 130 is characterized in that the "b" shape corresponding to the edge of the sound absorbing plate 120 is formed to protrude the insertion grooves 113, 134. .

In this case, the sound absorbing plate 120 is made of a urethane panel or an EVA (Ethylene-Vinyl Acetate) foam panel.

At this time, the sound absorbing plate 120 is characterized in that a polyester (polyester) is inserted therein.

Accordingly, the present invention, the sound insulation plate, and the bottom space of the sound insulation plate is gradually recessed toward the center from the edge is formed in the upper space spaced apart from the sound insulation plate, the long hole to allow the sound waves to enter the lower air layer from the upper space portion A sound absorbing opening portion is provided, and a sound absorbing plate which absorbs sound waves by causing a vortex phenomenon of sound waves in the flaw opening portion and absorbs sound waves and passes through the air layer, and is provided on the lower surface of the sound absorbing plate and extends radially from the center to the edge. , Isometrically spaced, and provided with a hollow frame having a rectangular edge, consisting of a guide frame that is formed at both ends protruding downward, the upper surface of the guide frame in contact with the lower surface of the stepped sound absorbing plate formed in a step shape And a support having a flat bottom surface, and a support disposed between the support and the slab layer. Including a double space between the sound insulation plate and the sound absorbing plate, and between the sound absorbing plate and the slab layer is improved to further amplify the sound absorption effect, by dispersing and attenuating the impact energy applied to the floor surface of the multi-storey building as well as light impact sound It effectively blocks heavy impact sounds and prevents vibration and noise.

In addition, the present invention, but closely attached to the lower surface of the sound absorbing plate for guiding the noise, the space is formed on the radiation, both ends are formed in the groove formed in the empty space in the guide frame protruding downward to form a vertical perpendicular to the sound absorbing plate By providing an air layer capable of effectively removing noise without providing a spaced portion and an auxiliary plate for sound absorption, the thickness and density of the sound absorbing plate can be lowered and the construction cost thereof can be reduced.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention will be described to be easily carried out by those of ordinary skill in the art.

2 is an exploded perspective view of the interlayer noise preventing material 100 according to an embodiment of the present invention, FIG. 3 is a detailed view of the sound insulation panel 110 according to an embodiment of the present invention, and FIG. 4 is an embodiment of the present invention. 5 is a detailed view of the sound absorbing plate 120 according to the embodiment of the present invention, and FIG. 6 is a detailed view of the construction of the interlayer noise preventing material 100 according to the embodiment of the present invention. It is a cross-sectional view showing.

In general, the floor impact sound is a 'solid sound' that is transmitted through the vibration of the structure, and the characteristics of the sound vary depending on the source of the sound. It is divided into light impact sound that generates a lot of KHz) components, and heavy impact sound that generates a lot of low frequency (400 ~ 800Hz) sound by low and heavy impact sources such as walking. When wearing shoes indoors like the West, only the light impact sound becomes a problem.However, when living barefoot in Korea, the weight impact sound becomes a bigger problem, so the slab stiffness of the floor is thicker. It is most effective to increase the temperature, but the use of a heat insulating material to increase the thermal insulation performance of the floor is formed of a double structure divided into a structural slab and ondol plate, there was a lot of difficulty in suppressing the heavy shock sound due to the resonance caused by this.

Therefore, the interlayer noise prevention material 100 of the present invention was invented to minimize the construction cost by reducing the weight impact sound as well as light weight impact sound, and to reduce the thickness and density of the floor, a plurality of continuously on the slab layer which is the floor structure of the building It is disposed, and covered with a lightweight foam concrete layer thereon, is finished to be installed, to prevent the inter-layer noise of the building, located on the top floor, as shown in Figure 2, made of a square, moisture-proof and waterproof coating The sound insulating plate 110, a rectangular synthetic resin plate or a rubber plate made of, and positioned in the lower portion of the sound insulating plate 110, the support projecting upward in the center portion 122 formed to be gradually recessed toward the center from the edge The member 111 is attached and fixed to form an upper space portion 121 spaced apart from the sound insulation plate 110, and sound waves are formed in the upper space portion 121. A sound absorbing opening portion 123 having a long hole shape is formed to be introduced into the secondary air layer. The sound absorbing plate 120 absorbs sound waves by causing a vortex phenomenon of sound waves in the flaw opening portion 123 and passes through the air layer to exhaust the sound absorbing plate 120. And a plurality of spaces provided on the lower surface of the sound absorbing plate 120 and extending radially from the center to the edges, spaced at equal angles, and formed in a hollow frame having a rectangular edge. 131 is formed, and both ends protrude downward to form a guide frame 132 formed with a recess provided in an empty space, a plurality of diaphragm 133 is formed to block between the grooves and The upper surface of the guide frame 132, which is in contact with the lower surface of the sound absorbing plate 120 formed to be gradually recessed from the edge toward the center, is formed in a stepped step shape. The height of the ribs is higher and lowered toward the center, and the bottom surface is flat, so that the sound waves passing through the sound absorbing plate 120, the support 130 to form an air layer that can be eliminated and the edge of the support 130 It comprises a support portion 140 protruding in a "b" type or cylindrical (not shown).

At this time, the sound insulation plate 110 is formed to project discretely on the lower surface as shown in Figure 3, to form a projection 112 that increases toward the center to support the upper space portion 121 of the sound absorbing plate 120 It is provided to increase the supporting force against the impact, vibration, etc. generated from the upper end than the support member 111, the "a" shape corresponding to the corner of the sound absorbing plate 120 is formed at the lower edge side of the sound insulating plate 110 As the insertion groove 113 is provided, the sound absorbing plate 120 is inserted into and fixed to the insertion groove 113.

In the present invention, the sound absorbing plate 120 is preferably made of a urethane (urethane) panel or EVA (Ethylene-Vinyl Acetate) foam panel, etc., the EVA foam panel is excellent in heat resistance, heat insulation, thermal insulation and shock absorption, the thickness is various Processable, but has a high cost disadvantage that can be inserted between the polyester (polyester) between the sound absorbing plate 120 of the present invention, the polyester is a sound absorbing plate 120 of the present invention as a material with excellent sound absorption performance and thermal insulation It is inserted to maintain the thickness and density, but to minimize the construction cost. In addition, the sound absorbing plate 120 increases the noise reduction performance and the buffer performance by forming a spiral air layer.

As shown in FIG. 4, the sound absorbing plate 120 has an upper end spaced apart from the sound insulating plate 110 by being fixed to the support member 111 protruding upward from the center portion 122 formed to be gradually recessed from the edge toward the center. The space 121 is formed, and a sound absorption opening portion 123 having a long hole shape is provided to allow sound waves to flow into the air layer from the upper space portion 121. The sound absorption opening portion 123 is formed in the center portion 122. Rotation from the starting point 124 is located on a plurality of imaginary radiations (a) formed at an isometric angle with respect to the center point and spaced at the same distance from the center point of the central part 122 as the starting point 124. And form a long hole directed toward the central portion 122, wherein a virtual inner radiation b is provided between each of the virtual radiations a to bend between the radiation a and the inner radiation b. Made of connected nodes, said One sound-absorbing opening portion 123a formed by connecting a folding node has a angle of inclination between the outermost bending node starting at the starting point 124 and the folding node as an obtuse angle, and the length of the bending node is toward the central portion 122. It is configured to be formed in a straight line gradually decreasing, the end point 125 is provided with the end of the innermost bending node in the radiation (a) where the start point 124 is located. At this time, the sound absorbing portion 123 absorbs sound waves, but by lengthening the moving length of the sound waves, weakens the sound wave energy force and causes the sound waves to swirl in the air layer formed by the sound absorbing opening portion 123 And, it is provided to exhaust through the air layer, the start point 124 and the end point 125 is located in the virtual radiation (a), it is provided in a stable structure to prevent the rupture.

As shown in Figure 5, the support 130 of the present invention extends radially from the center to the edge, spaced at equal angles, and provided with a hollow frame having a rectangular edge (a plurality of spaces formed between the edge and the central portion ( 131 and a guide frame 132 having a '∩' shape to form an outer frame, and the upper surface of the guide frame 132 contacting the sound absorbing plate 120 formed by being gradually recessed from the edge toward the center is formed in a step shape. And the bottom surface is provided flat. The support 130 forms an air layer in which a sound wave absorbed by swirling through the sound absorbing plate 120 is removed by forming a space 131 provided in a triangle in a radial manner, and is in contact with the sound absorbing plate 120. By minimizing the space to secure a wide area of the sound absorbing opening 123 to form an air layer from which the sound waves are removed, as shown in the rear perspective view of the support 130 is a '∩' shape is formed inside the groove The guide frame 132 is provided with a diaphragm 133 at regular intervals in the recess formed in the elongated groove to distribute a space through which sound waves absorbed by the support 130 can flow, thereby forming an air layer in which noise is removed. do.

In addition, the upper edge side of the support 130, the "b" shape corresponding to the corner of the sound absorbing plate 120 is formed to protrude the insertion groove 134, the sound absorbing plate 120 in the insertion groove 134 It is provided to be inserted and fixed.

According to an embodiment of the present invention, as shown in Figure 6, the soundproof plate 110 for moisture-proof, waterproof is covered on the upper portion of the sound absorbing plate 120, the support member 111 is mounted in the center of the sound insulation plate The upper space 121 between the 110 and the sound absorbing plate 120 is supported, and the support 130 is mounted at the bottom, and the support 140 is inserted into the lower four corners of the support 130. The interlayer noise preventing material of the present invention is provided to stably support and is disposed on the top of the slab layer 200 made of reinforced concrete, and the foamed concrete layer 300 is covered and finished on top. At this time, the noise generated in the upper and lower floors of the building is exhausted in the air layer of the sound absorbing plate 120 while being guided by the sound absorbing plate 120 provided with a sound-absorbing opening portion 123 formed in a spiral through the sound insulating plate 110. It is provided to be completely erased in the space provided in the support 130 in close contact with the lower surface of the sound absorbing plate 120. At this time, the interlayer noise prevention material 100 of the present invention is preferably made of about 30 ~ 36mm thick.

The support portion 140 is provided in the same material as the sound absorbing plate 120, "A" type, or made of a cylindrical rubber packing (not shown), the support portion 130 in the lower portion of the support 130 is a slab layer Not only do not directly contact the 200 can be stably supported from the bottom, but also to form an air layer between the interlayer noise suppression material 100 and the slab layer 200 of the present invention to amplify the sound absorption effect.

In general, the sound absorbing material is known that the thicker the thickness of the material, the higher the sound absorption rate, the higher the sound absorption rate in proportion to the density, but the interlayer noise suppression material 100 of the present invention to reduce the thickness, so as to increase the sound absorption rate despite the lower density This can be seen through the following table (A, B, C), which was tested by KHIC.

end. Weight impact sound measurement result of the present invention

Frequency (Hz)
Impact sound level (dB) Sound source side Masturbation Level difference 63 66.7 35.8 30.9 125 69.1 34.6 34.5 250 71.8 32.9 38.9 500 85.4 34.1 51.3

I. Light impact sound measurement result of the present invention

Frequency (Hz)
Impact sound level (dB)
Sound source side Masturbation Level difference 250 96.0 36.5 59.5 500 87.9 36.0 51.9 1000 96.0 35.6 60.4 2000 77.6 35.5 42.1

All. Impact sound measurement result of the conventional invention

Frequency (Hz)
Impact sound level (dB)
Sound source side Masturbation Level difference 63 93.2 79.2 14.0 125 93.6 68.0 25.6 250 102.8 61.1 41.7 500 97.1 52.8 44.3

The table (A, B) is a state in which the interlayer noise prevention material 100 of the present invention is provided with a thickness of 36mm thinner than 40mm, which is an average thickness of the general noise suppression material, between the foam concrete layer having a thickness of 40mm and the slab layer having a thickness of 150mm. Method of measuring floor impact sound in KS F 2810 The results obtained by measuring the heavy and light impact sound by the heavy floor impact sound generator and the light floor impact sound generator according to KS F 2810 on the sound source and the sound receiving side which are the sources of noise with the noise analyzer to be.

As can be seen from the table (a, b), the interlayer noise suppression material 100 of the present invention has a lightly shocked sound and a heavy impact sound having a significantly lower value than the minimum performance reference value for the floor impact sound (lightweight impact sound 58 dB, heavy impact sound 50 dB). It was measured, and look at this in more detail, the level difference of the heavy impact sound of the present invention is 30 ~ 50dB, the level difference of the light impact sound is 40 ~ 60dB appeared by the interlayer noise suppression material 100 of the present invention while going from the sound source side to the sound receiving side It can be seen that the impact sound is greatly reduced.

In addition, as can be seen from the above table (C), which is the result of the present inventors' weight impact sound measurement, the sound absorption effect is uniform as the level difference between the sound source side and the sound absorption side is 14, 25, 41, 44 dB when the floor is constructed by the conventional invention. Although not measured, it can be seen that the sound absorbing effect is generally uniform and significantly improved when looking at the level difference when the floor is constructed with the present invention.

Therefore, the present invention is to minimize the noise and to reduce the thickness and density of the floor by lowering the sound energy generated by the sound waves such as the inter-layer impact, noise, etc. of the building vibration, in particular, not only light impact sound but also heavy impact sound By effectively blocking the soundproofing, moisture-proof, heat insulation effect can be improved while further improving the workability.

Although specific embodiments have been shown and described in order to illustrate the technical idea of the present invention, the present invention is not limited to the same configuration and operation as the specific embodiments as described above, and various modifications are not limited to the scope of the present invention. It can be carried out within. Therefore, such modifications should also be regarded as belonging to the scope of the present invention, and the scope of the present invention should be determined by the claims below.

1 is a perspective view of a conventional invention.

Figure 2 is an exploded perspective view of the interlayer noise protection material 100 according to an embodiment of the present invention.

3 is a detailed view of the sound insulation panel 110 according to an embodiment of the present invention.

4 is a detailed view of the sound absorbing plate 120 according to the embodiment of the present invention.

5 is a detailed view of the support 130 according to an embodiment of the present invention.

Figure 6 is a cross-sectional view showing a construction state of the interlayer noise preventing material 100 according to an embodiment of the present invention.

Description of the Related Art

100: interlayer noise prevention material

110: sound insulation plate 111: support member

112: protrusion 113: insertion groove

120: suction plate 121: upper space

122: center part 123: sound absorption opening part

124: starting point 125: end point

130: support 131: space

132: guide frame 133: diaphragm

134: insertion groove

140: support portion

Claims (5)

In the interlayer noise prevention material 100 for preventing the inter-layer impact and vibration of the building, Located in the top layer, made of a square, the moisture-proof waterproof soundproof plate 110 and; Comprising a rectangular synthetic resin plate material or rubber plate material, the support member 111 protruding upwards is fixed to the central portion 122 formed in the lower portion of the sound insulation panel 110 is gradually recessed from the edge toward the center. An upper space portion 121 spaced apart from the sound insulation plate 110 is formed, and a sound absorption opening portion 123 having a long hole shape is provided to allow sound waves to flow into the lower air layer from the upper space portion 121. A sound absorbing plate 120 for absorbing sound waves by causing a vortex phenomenon of sound waves in the sound absorbing opening unit 123 and passing them through the air layer; A plurality of spaces 131 mounted on a lower surface of the sound absorbing plate 120 and extending radially from the center to the edges, spaced at equal angles, and formed in a hollow frame having a rectangular edge. And, the '∩' shape and the inside is formed as a groove portion to form a guide frame 132 forming an outer frame, the groove portion is provided with a plate 133 is provided at regular intervals, gradually toward the center from the edge The upper surface of the guide frame 132 that is in contact with the lower surface of the sound absorbing plate 120 is recessed is formed in a stepped step shape, the height of the edge is provided to be lowered toward the center, the bottom surface is provided flat to the sound absorbing plate 120 A support 130 for forming an air layer through which sound waves passing through the air stay and can be erased; Comprising the same material as the sound absorbing plate 120, inserted into the edge of the support 130, the support portion 140 is formed to protrude in a "b" type or cylindrical; , ≪ / RTI > The sound absorbing opening portion 123 is located on a plurality of imaginary radiations (a) formed at an isometric angle with respect to the center point of the center portion 122 and is a starting point (spaced apart from the center point of the center portion 122 at the same distance). 124 to form a long hole that rotates from the starting point 124 to the central portion 122, a virtual inner radiation (b) is provided between each of the imaginary radiation (a) is the radiation (a) ) And the inner radiation (b) is made by connecting the bending node, one sound-opening opening portion 123a formed by connecting the bending node is the bending node from the outermost bending node started at the starting point 124 The angle of bending between the oblique angle is formed so that the length of the bending node gradually decreases toward the central portion 122 to form a straight line, the innermost bending in the radiation (a) where the starting point 124 is located Endpoint D is the end 125 prevents the interlayer material characterized in that the noise is provided. The method of claim 1, The sound insulation plate 110 is discretely protruding in the lower portion, interlayer noise prevention material, characterized in that the projection 112 is provided to increase toward the center. The method of claim 1, Interlayer noise, characterized in that the lower portion of the sound insulating plate 110 and the upper edge side of the support 130, the "b" shape corresponding to the edge of the sound absorbing plate 120 is formed to protrude insertion grooves 113, 134 are provided. Prevention material. The method of claim 1, The sound absorbing plate 120 is an interlayer noise prevention material, characterized in that made of urethane (urethane) panel or EVA (Ethylene-Vinyl Acetate) foam panel. 3. The method of claim 2, The sound absorbing plate 120 is an interlayer noise preventing material, characterized in that a polyester (polyester) is inserted therein.

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