Floor Impact Sound Insulation Support Member and Inter-Floor Impact Soundproofing Structure for Noise Prevention Using the Same

Abstract

This invention relates to a floor impact sound blocking mat support member for blocking floor impact sound from being transmitted to a lower floor, and an inter-floor floor impact sound blocking structure for noise prevention using the same. In particular, it relates to a floor impact sound blocking mat support member formed as a mat support panel having a plurality of support legs integrally provided on the lower surface of a flat support plate, air being discharged through elongated holes formed in the support legs, and an elastic support cap and a steel spring being provided in the support legs so that impact is offset through elasticity and air discharge is easy, thereby blocking floor impact sound from being transmitted to a lower floor, and an inter-floor floor impact sound blocking structure for noise prevention using the same.

Description

Technology Field

[0001] This invention relates to a floor impact sound blocking mat support member for blocking floor impact sound from being transmitted to a lower floor, and an inter-floor floor impact sound blocking structure for noise prevention using the same. In particular, the mat support member is formed as a mat support panel having a plurality of support legs integrally provided on the lower surface of a flat support plate, and air is discharged through elongated holes formed in the support legs. By providing steel springs and elastic support caps to the support legs, the impact is offset through elasticity and air discharge is easy, thereby blocking floor impact sound from being transmitted to a lower floor. The invention relates to a floor impact sound blocking mat support member and an inter-floor floor impact sound blocking structure for noise prevention using the same. Background Technology

[0002] Generally, noise radiated into lower-floor units through concrete slabs when an impact, such as walking or falling objects, is applied to the upper floors of multi-unit dwellings like apartments is called floor impact sound.

[0003] The structural standards for inter-floor impact sound insulation for noise prevention refer to floor structures that have been approved after verifying the performance of the impact sound insulation structure. The performance of the impact sound insulation structure is a structure approved after verifying that heavyweight impact sound (referring to floor impact sound caused by heavy and soft impacts) is 49 dB or less and lightweight impact sound (referring to floor impact sound caused by relatively light and hard impacts) is 49 dB or less.

[0004] Conventional technology, such as Registered Patent Publication No. 10-1062268 (August 30, 2011), provides a rubber cushioning material between a concrete slab and a support panel to block such floor impact noise and reduce inter-floor noise. However, when the rubber cushioning material comes into direct contact with the upper surface of the concrete slab, pressure is constantly applied due to the self-weight of the upper structure of the concrete slab, which causes the rubber cushioning material to deform or the inter-floor noise attenuation effect to decrease due to aging.

[0005] In addition, after construction was completed, there were problems such as cracks, deformation, and subsidence occurring in the top finishing mortar layer of the slab due to localized impacts or loads acting from above, which necessitated re-construction.

[0006] In addition, when fitting the rubber cushioning material into the above-mentioned fitting protrusions, the number of rubber cushioning materials cannot be further increased because all of them are provided for each position of the above-mentioned fitting protrusions, which resulted in a problem of reduced construction flexibility.

[0007] In addition, while the current building code specifies a concrete slab thickness of 210mm, older apartments built in the past were constructed with a concrete slab thickness of 120mm according to the building code at the time, and there was a problem in that it was difficult to meet height restrictions when remodeling these older apartments using current materials.

[0008] Another prior art disclosed in Public Patent Publication No. 10-2025-0072490 (May 23, 2025) describes a frame equipped with a vibration-damping rubber block, wherein the frame is configured with vertical and horizontal grids to disperse impact in all directions and transmit impact to the vibration-damping rubber block through a downward connecting shaft to attenuate the impact. However, the connecting shaft protrudes at the grid intersection of the frame, and the connecting shaft at the end of the connecting shaft is formed with different inner diameters so as not to be continuous, resulting in a problem where the connecting part is vulnerable to shear stress.

[0009] In addition, although the dome-shaped curved groove formed on the lower surface of the above-mentioned anti-vibration rubber block was designed to cushion and disperse the impact generated from the upper layer, there was a problem in that the air inside the curved groove could not escape, and thus floor impact noise caused by the internal air still occurred. Prior art literature

[0010] Republic of Korea Registered Patent Publication No. 10-1062268 (Aug. 30, 2011) Republic of Korea Published Patent Publication No. 10-2025-0072490 (May 23, 2025) The problem to be solved

[0011] This invention is intended to provide a floor impact sound blocking mat support member that is resistant to vertical pressure and shear stress, and an inter-floor impact sound blocking structure for noise prevention using the same, which can discharge floor impact sound caused by impact without transmitting it to the lower floor and increase resistance to pressure generated by the weight of the concrete slab superstructure, thereby preventing cracks and local deformation in the finishing mortar layer after construction, increase the bonding strength between the elastic support cap provided below the support leg of the mat support member and said support leg, and improve construction flexibility by additionally providing a steel spring and an elastic rubber cap when it is determined that additional load distribution is necessary to place heavy furniture such as beds and refrigerators. means of solving the problem

[0012] The invention relates to a mat support member (A) provided on the upper part of a concrete slab (SB) of a building structure, wherein

[0013] The above mat support member (A) is formed as a mat support panel (30) in which a plurality of support legs (320) are integrally provided on the bottom surface of a square-shaped flat support plate (310), and circular holes (311) are provided at regular intervals on the flat support plate (310), and reinforcing rim support ribs (312) protruding downward are provided on the bottom edge of the flat support plate (310), and a plurality of horizontal reinforcing support ribs (313) and vertical reinforcing support ribs (314) are provided in a grid pattern inside the reinforcing rim support ribs (312), and circular holes (311) provided on the flat support plate (310) are formed at the points where the horizontal reinforcing support ribs (313) and vertical reinforcing support ribs (314) intersect, and the support legs (320) are formed as leg bodies (321) in the shape of a truncated cone that is wider at the top and narrower at the bottom, and the flat support plate (310) The lower portion of the reinforcing ring-shaped flange (315) provided on the lower edge of the circular ball (311) is provided, and the lower surface of the leg body (321) is provided with a first concave portion (322) that is concave upward and a protruding support portion (323) that protrudes downward at the edge of the first concave portion (322), and a space portion (324) is formed inside the leg body (321) and connected to the circular ball (311) of the flat support plate (310), and the outer surface of the leg body (321) is provided with four vertically elongated holes (325).

[0014] Additionally, four square through holes (316) are provided on the inner side of the reinforcing ring-shaped flange (315) provided on the flat support plate (310) of the mat support panel (30), and four locking tabs (326) are provided protruding outwardly on the outer surface of the leg body (321) of the support leg (320), wherein the four square through holes (316) provided on the flat support plate (310) and the four locking tabs (326) provided on the support leg (320) are provided to correspond to each other.

[0015] In addition, the mat support panel (30) may be made of synthetic resin material (plastic) such as PET or HDPE, with a size of 500×500mm, 500×1000mm, or 1000×1000mm, and a height of 40 to 50mm, but in the case of remodeling, it may be 15 to 20mm.

[0016] In addition, the thickness of the mat support panel (30) is 1 to 3 mm, the thickness of the reinforcing support ribs (312) (313) (314) provided on the bottom surface of the flat support plate (310) is 3 to 7 mm, and an anti-slip protrusion (301) is formed on the surface of the flat support plate (310).

[0017] Additionally, four catchers (326) provided on the leg body portion (321) of the support leg (320) are provided on the outer surface of the leg body portion (321) of the support leg (320) at the location where the circular hole (311) of the flat support plate (310) is provided, and in order to facilitate the elasticity of the catchers (326), cutting grooves (326-1) are provided for a certain length from both sides of the square through hole (316) of the flat support plate (310) to both sides of the catchers (326), and the upper surface of the catchers (326) is formed as a horizontal surface (326-2) inwardly so that the steel spring (330) can be easily caught.

[0018] Additionally, the horizontal surface (326-2) of the above-mentioned stopper (326) is characterized by being provided at the lower part of the square through hole (316) of the above-mentioned flat support plate (310).

[0019] In addition, a first concave portion (322) provided on the bottom surface of the leg body (321) of the support leg (320) is provided with a first through hole (322-1) that penetrates upward.

[0020] In addition, the leg body (321) of the support leg (320) is characterized by having a steel spring (330) forcibly fitted from the bottom and hooked onto four hooks (326) provided on the upper part of the leg body (321).

[0021] Additionally, an elastic support cap (340) is provided at the lower part of the support leg (320) equipped with the steel spring (330), wherein the elastic support cap (340) is formed as a cylindrical support cap body (341) having an open top and a support cap bottom part (343) having a support cap dome part (342) that is convex upward at the bottom, and a concave fitting part (344) is formed between the inner surface of the support cap body (341) and the support cap dome part (342) of the support cap bottom part (343).

[0022] In addition, the elastic support cap (340) is characterized by being made of any one of TPV (Thermoplastic Vulcanizate Polyurethane), TPEE (Thermoplastic Polyester Elastomer), TPU (Thermoplastic Polyurethane), and EPDM (Ethylene-Propylene Diene Monomer).

[0023] The above steel spring (330) is characterized by being provided to be caught on a catch (326) provided on the upper part of the leg body (321) of the support leg (320) at the lower part of the outer surface of the support cap body (341) of the elastic support cap (340).

[0024] In addition, a plurality of third through holes (343-1) are provided at the bottom edge corner portion of the bottom portion (343) of the elastic support cap (340) and connected to the fitting portion (344), so that slip prevention can be achieved through the third through holes (343-1).

[0025] A second through hole (342-1) penetrating upward is provided in the support cap dome portion (342) provided on the bottom surface of the support cap body (341) of the elastic support cap (340).

[0026] Additionally, a second concave portion (345) that is concave upward is provided in the center of the bottom surface of the bottom portion (343) of the support cap body (341), and a groove (344-1) is provided on the outer side of the bottom surface of the fitting portion (344) of the elastic support cap (340).

[0027] In addition, the protruding support part (323) provided on the bottom of the support leg (320) is easily fitted into the fitting part (344) of the support cap body (341) by receiving elasticity from the groove (344-1) provided in the fitting part (344) of the elastic support cap (340), and compressed air is discharged to the outside through the third through hole (343-1).

[0028] Accordingly, as the support cap dome (342) provided on the bottom surface of the elastic support cap (340) is fitted from bottom to top into the first concave portion (322) provided on the bottom surface of the leg body (321), the protruding support portion (323) provided on the bottom portion of the leg body (321) of the support leg (320) is easily fitted into the fitting portion (344) provided on the support cap body (341).

[0029] Additionally, a first through hole (322-1) penetrating upward is provided in the center of a first concave portion (322) provided on the bottom surface of the leg body of the support leg (320), and a second through hole (342-1) penetrating upward is provided in the center of a support cap dome portion (342) provided on the bottom surface of the support cap body (341) of the elastic support cap (340), wherein the first through hole (322-1) provided in the support leg (320) and the second through hole (342-1) provided in the elastic support cap (340) are preferably provided at the same vertical position.

[0030] In addition, regarding a floor impact sound blocking structure (B) for preventing noise provided on the upper surface of a concrete slab (SB) of a building structure, the floor impact sound blocking structure (B) is provided with a breathable mat (20) on the upper surface of the concrete slab (SB), and a plurality of mat support panels (30) are provided in abutting manner over the entire upper surface of the breathable mat (20), and a cushioning material (40) is provided over the entire upper surface where the plurality of mat support panels (30) are provided, and a heating pipe (50) is placed on the cushioning material (40) by means of a plurality of U-shaped fixing pins (510), and a finishing mortar (M) is poured and hardened on the cushioning material (40) where the heating pipe (50) is placed to form a finishing mortar layer (60), wherein the mat support panel (30) is formed as a mat support panel (30) in which a plurality of support legs (320) are integrally provided on the bottom surface of a square-shaped flat support plate (310). The flat support plate (310) is provided with circular holes (311) at regular intervals, and a reinforcing rim support member (312) protruding downward is provided on the bottom edge of the flat support plate (310). A plurality of horizontal reinforcing support members (313) and vertical reinforcing support members (314) are provided in a grid pattern inside the reinforcing rim support member (312), and a circular hole (311) provided in the flat support plate (310) is formed at the point where the horizontal reinforcing support members (313) and vertical reinforcing support members (314) intersect. The support leg (320) is formed as a leg body (321) in the shape of a truncated cone that is wider at the top and narrower at the bottom, and is provided at the bottom of a reinforcing ring-shaped flange (315) provided on the bottom edge of the circular hole (311) of the flat support plate (310). The bottom surface of the leg body (321) is a first concave shape toward the top. The concave portion (322) and the edge of the first concave portion (322) are provided with a protruding support portion (323) protruding downward, and a space portion (324) is formed inside the leg body (321) and connected to the circular hole (311) of the flat support plate (310).The outer surface of the above leg body (321) is characterized by having four vertically elongated slots (325).

[0031] Additionally, an elastic sheet (10) is provided between the upper part of the concrete slab (SB) and the breathable mat (20), and the breathable mat (20) is provided as a coil mat or a non-woven mat, and the breathable mat (20) is characterized by having a circular insertion hole (210) into which a support leg (320) of the mat support panel (30) is inserted. Effects of the invention

[0032] This invention provides a mat support member equipped with a plurality of reinforcing horizontal supports and reinforcing vertical supports, and a plurality of support legs provided on the bottom surface of the flat support plate, thereby sufficiently resisting the pressure generated by the weight of the concrete slab superstructure, preventing cracks and local deformation from occurring in the finishing mortar layer after construction, thereby extending the lifespan and achieving the effect of blocking floor impact noise.

[0033] In addition, since the forced spring is extended to the bottom of the elastic support cap, the pressure on the elastic support cap is reduced, thereby preventing deformation or the impact sound dampening effect caused by aging.

[0034] In addition, as the support cap dome portion provided on the bottom surface of the elastic support cap is fitted from bottom to top into the first concave portion provided on the bottom surface of the leg body, the protruding support portion provided on the bottom portion of the leg body of the support leg is fitted into and fixed to the fitting portion provided on the support cap body, thereby obtaining the effect of improving the bonding strength of both members.

[0035] In addition, by additionally fitting and connecting the elastic support cap or forced spring to the support leg, the effect of further increasing construction flexibility can be obtained.

[0036] In addition, the height of the support legs can be flexibly contracted even with a thin slab thickness of 120mm, which further increases the flexibility of the remodeling construction.

[0037] In addition, the upper part of the support leg is integrally provided with the circular hole of the mat support panel, making it resistant to vertical pressure, and the leg body is formed in the shape of a truncated cone that is wider at the top and narrower at the bottom, thereby providing strong resistance to shear stress.

[0038] In addition, by allowing the air inside the dome portion supporting the elastic support cap to be expelled, noise caused by the air being sealed is not generated, thereby achieving the effect of blocking floor impact noise. Brief explanation of the drawing

[0039] FIG. 1 is a perspective view illustrating the overall shape of a mat support member according to one embodiment of the present invention. FIG. 2 is a bottom perspective view illustrating the overall shape of a mat support member according to one embodiment of the present invention. FIG. 3 is a perspective view illustrating the overall shape of a mat support member according to another embodiment of the present invention. FIG. 4 is a cross-sectional view illustrating an inter-floor impact sound blocking structure according to one embodiment of the present invention. FIG. 5 is a cross-sectional view illustrating an inter-floor impact sound blocking structure according to another embodiment of the present invention. FIG. 6 is a cross-sectional view illustrating an inter-floor impact sound insulation structure according to another embodiment of the present invention. FIG. 7 is a perspective view illustrating an inter-floor impact sound blocking structure according to one embodiment of the present invention, FIG. 4 is a perspective view illustrating an inter-floor floor impact sound blocking structure according to one embodiment of the present invention. Specific details for implementing the invention

[0040] An embodiment of the invention is described below with reference to the attached drawings.

[0041] FIG. 1 is a perspective view showing the overall shape of a mat support member according to one embodiment of the present invention, FIG. 2 is a bottom perspective view showing the overall shape of a mat support member according to one embodiment of the present invention, and FIG. 3 is a perspective view showing the overall shape of a mat support member according to another embodiment of the present invention.

[0042] The floor impact sound blocking mat support member (A) according to the invention is formed as a mat support panel (30) having a plurality of support legs (320) integrally provided on the bottom surface of a flat support plate (310), wherein the flat support plate (310) of the mat support panel (30) is provided with a plurality of reinforcing horizontal support ribs (313) and reinforcing vertical support ribs (314) in a grid pattern inside the reinforcing edge support ribs (312) of the four sides, so as to provide sufficient strength while reducing the amount of material used.

[0043] A reinforcing ring-shaped flange (315) with a circular hole (311) formed at the point where the reinforcing horizontal support member (313) and reinforcing vertical support member (314) intersect is integrally provided to effectively distribute the weight of the finishing mortar (M) poured on top.

[0044] A plurality of support legs (320) on the bottom surface of the flat support plate (310) are provided to sufficiently resist pressure caused by the weight of the floor impact sound blocking structure (B) for preventing noise on the upper surface of the concrete slab (SB), thereby preventing cracks and local deformation in the finishing mortar layer (60) after construction, extending the lifespan and blocking floor impact sound.

[0045] The support leg (320) of the mat support panel (30) is formed as a leg body (321) in the shape of a truncated cone that is wider at the top and narrower at the bottom, and the leg body (321) is provided at the bottom of the circular hole (311) provided in the flat support plate (310). The bottom surface of the leg body (321) is provided with a first concave portion (322) that is concave upward and a protruding support portion (323) in which the edge of the first concave portion (322) protrudes downward. A space portion (324) is formed inside the leg body (321) and connected to the circular hole (311) of the flat support plate (310). Four vertically elongated holes (325) are provided on the outer surface of the leg body (321), thereby dispersing the load of the floor impact sound blocking structure (B) for preventing noise from the top, making it strong against vertical pressure and wider at the top and narrower at the bottom. It is formed with a leg body in the shape of a truncated cone, so it has strong resistance to shear stress, and can discharge air inside the second concave part (345) through the first through hole (322-1) and the second through hole (342-1) to be described later through the elongated hole (325), thereby having the effect of blocking floor impact sound.

[0046] The above mat support panel (30) is preferably made of synthetic resin (plastic), with a size of 500×500mm, 500×1000mm, or 1000×1000mm, and a height of 15 to 50mm.

[0047] The height of the support leg (320) can be adjusted by shortening the length of the leg body (321) according to the structural height limit of the concrete slab (SB), so that construction can be performed not only on 210mm but also on older apartments constructed with 120mm, thereby achieving the effect of improved construction flexibility.

[0048] Four square through holes (316) are provided on the inner side of the reinforcing ring-shaped flange (315) provided on the flat support plate (310), and four protruding hooks (326) are provided on the upper outer surface between the four elongated holes (325) provided on the outer surface of the leg body (321) of the support leg (320), and the four square through holes (316) provided on the flat support plate (310) and the four hooks (326) provided on the support leg (320) are provided to correspond to each other, and it is preferable that the height of the hooks (326) and the reinforcing ring-shaped flange (315) be within 2 to 5 mm so that a steel spring (330) can be provided.

[0049] The above-mentioned stopper (326) is provided on the outer surface of the leg body portion (321) of the support leg (320) at the location where the circular hole (311) of the flat support plate (310) is provided, and in order to provide elasticity to the stopper (326), cutting grooves (326-1) are provided on both sides of the stopper (326) with a certain length along the direction of the square through hole (316) of the flat support plate (310) so as to force-fit the steel spring (330), when force is applied upward along the lower slope of the stopper (326) to the steel spring (330), the cutting grooves (326-1) provide mobility separate from the outer surface of the support leg (320), causing the stopper (326) to move into the space portion (324) of the support leg (320), and then the steel spring (330) When the forced fit is completed, the support leg (320) is restored to its original state by the elasticity of its material, and the forced spring (330) is seated on the horizontal surface (326-2) of the catch (326) and firmly fixed.

[0050] The above steel spring (330) is preferably provided with a thickness of 2mm to 4mm so that the required strength or elasticity can be further reinforced according to the thickness of the concrete slab (SB), and at this time, assuming the load acting from above is 100kg, it is preferable that it be able to reach the floor when about 70 to 90kg is applied, and this state can be maintained in the best state to reduce floor impact noise. That is, when the height of the finishing mortar layer (60) is 40mm, the specific gravity of the mortar per 1m² is calculated as 2, so the load of the finishing mortar layer (40) is about 80kg. At this time, when the support leg (320) of the mat support panel (30) is lifted about 5 to 10mm from the upper surface of the concrete slab (SB) or elastic sheet (10), the elastic force is applied by the breathable mat (20) and the steel spring (330), so the load burden applied to the mat support panel (30) by the finishing mortar layer (60) can be further reduced.

[0051] An elastic support cap (340) is further provided on the lower part of the support leg (320) equipped with the above steel spring (330) to provide elasticity that can further support the mat support panel (30). The elastic support cap (340) is formed as a cylindrical support cap body (341) having an open top, and is provided with a support cap bottom part (343) having a support cap dome part (342) that is convex upward at the bottom. Since a fitting part (344) is provided between the inner surface of the support cap body (341) and the support cap dome part (342) of the support cap bottom part (343), by fitting the protruding support part (323) from top to bottom toward the fitting part (344), the first concave part (322) on the bottom surface of the support leg (320) and the support cap dome part (342) are accurately interlocked and seated, allowing for firm fixation.

[0052] The fitting part (344) of the elastic support cap (340) is provided with a groove (344-1) on the outer side of the bottom surface of the fitting part (344) of the elastic support cap (340) when the support leg (320) is fitted and coupled to the elastic support cap (340) from above to below, so that the support cap body (341) is momentarily expanded by elasticity toward the outer side of the support leg (320) and then restored to its original state, so that the protruding support part (323) provided on the bottom part of the support leg (320) is easily fitted into the fitting part (344) of the support cap body (341). Accordingly, as the support cap dome (342) provided on the bottom surface of the elastic support cap (340) is fitted from bottom to top into the first concave portion (322) provided on the bottom surface of the leg body (321), the protruding support portion (323) provided on the bottom portion of the leg body (321) of the support leg (320) is easily fitted into the fitting portion (344).

[0053] A second concave portion (345) that is concave upward is provided in the center of the bottom surface of the base cap bottom portion (343) of the base cap body (341), so that vibrations and loads caused by impacts occurring in the upper layer are dispersed around the second concave portion (345), thereby enabling it to withstand even stronger impacts and loads. At this time, if the second concave portion (345) is distorted by impacts and loads and vibrations are formed in the air located inside, a floor impact sound is generated from the corresponding vibrations. To resolve this, a second through hole (342-1) is provided that penetrates upward into the center of the support cap dome (342) of the elastic support cap (340). It is preferable that the second through hole be provided at the same position vertically as the first through hole (322-1) that penetrates upward into the center of the first concave part (322) of the support leg (320). When vibration is formed in the internal air due to impact transmitted from the upper part of the finishing mortar layer (60) and the load of the upper structure of the concrete sleeve (SB) causing deformation in the second concave part (345), the air is discharged through the second through hole (345-1) and the first through hole (322-1), and the discharged air is completely discharged to the outside through the elongated hole (325), thereby obtaining the effect of blocking floor impact sound.

[0054] By fitting an elastic support cap (340) downward from the support leg (320), it is possible to have even more sufficient resistance or elasticity. In addition, when the elasticity of the mat support panel (30) is enhanced through the steel spring (330), if the steel spring (330) is compressed by the pressure generated by the weight of the upper structure of the concrete sleeve (SB), the effect of preventing the protruding support portion (323) of the support leg (320) from coming into contact with the upper surface of the concrete slab (SB) or the elastic sheet (10) can be obtained.

[0055] A plurality of third through holes (343-1) are provided at the bottom edge corner portion of the bottom portion (343) of the elastic support cap (340) and connected to the fitting portion (344), thereby preventing slippage through the third through holes (343-1). Additionally, when the gap between the protruding support portion (323) of the support leg (320) and the bottom portion (343) of the elastic support cap (340) narrows due to the load of the upper structure of the concrete sleeve (SB), the third through holes (343-1) can expel the air layer between the protruding support portion (323) and the bottom portion (343) of the support cap to the outside, thereby providing the effect of blocking floor impact noise.

[0056] The above elastic support cap (340) can be made of any one of TPV (Thermoplastic Vulcanizate Polyurethane), TPEE (Thermoplastic Polyester Elastomer), TPU (Thermoplastic Polyurethane), or EPDM (Ethylene-Propylene Diene Monomer) to have sufficient elasticity, recovery power, and shock absorption power. The above material is rubber, or a synthetic rubber material that combines the elasticity of rubber with the processability of plastic, and is characterized by having high elasticity and recovery power, having a ductility of 30 to 50 based on the Shore A hardness scale, and having high shock absorption power.

[0057] The above steel spring (330) and elastic support cap (340) are additionally coupled to the support leg (320) provided on the mat support panel (30) included in the concrete slab (SB) structure for placing heavy bedding and heavy kitchen appliances, thereby providing additional elasticity and floor impact sound blocking power, which can further increase the floor impact sound blocking performance and construction flexibility.

[0058] For example, in order to block floor impact sound by having the steel spring (330) alone provide elasticity, 32 to 42 elastic support caps (340) must be provided among the 72 support legs (320). However, when the elastic support caps (340) are combined with the steel spring (330), an equivalent sound insulation effect can be obtained by combining them with only 8 to 16 support legs (320), thereby making it more economical and easier to install. The fewer the number of support legs, the less noise is produced.

[0059] By providing a combination of the steel spring (330) or steel spring (:330) and elastic support cap (340) on the support leg (320) provided on the mat support panel (30) below where heavy bedding or heavy kitchen appliances are placed, the floor impact sound blocking performance in the vicinity can be increased, and the effect of flexibly blocking floor impact sound can be obtained.

[0060] FIG. 4 is a cross-sectional view illustrating an inter-floor impact sound blocking structure according to one embodiment of the present invention, FIG. 5 is a cross-sectional view illustrating an inter-floor impact sound blocking structure according to a second embodiment of the present invention, FIG. 6 is a cross-sectional view illustrating an inter-floor impact sound blocking structure according to a third embodiment of the present invention, and FIG. 7 is a perspective view illustrating an inter-floor impact sound blocking structure according to one embodiment of the present invention. FIG. 4 is a perspective view illustrating an inter-floor impact sound blocking structure according to one embodiment of the present invention.

[0061] The floor impact sound blocking structure (B) for preventing noise according to the invention is provided on the upper part of a concrete slab (SB) of a building structure, and as shown in FIGS. 4 to 7, it is provided to prevent cracks and local deformation occurring in the finishing mortar layer (60) due to local impact or load after construction, thereby extending its lifespan.

[0062] To this end, the floor impact sound insulation structure (B) is provided to include a breathable mat (20), a floor impact sound insulation mat support member (A), a cushioning material (40), a heating pipe (50), and a finishing mortar layer (60). A breathable mat (20) is provided on the upper surface of the concrete slab (SB), and a plurality of mat support panels (30) are provided in abutting manner over the entire upper surface of the breathable mat (20), and a cushioning material (40) is provided over the entire upper surface where the plurality of mat support panels (30) are provided.

[0063] A heating pipe (50) is placed on the upper part of the above buffer material (40) by means of a plurality of U-shaped fixing pins (510), and a finishing mortar (M) is poured and hardened on the upper part of the buffer material (40) on which the heating pipe (50) is placed to form a finishing mortar layer (60).

[0064] Here, it is preferable that the thickness of the concrete slab (SB) be 210 mm or more (150 mm for frame structures and 180 mm for flat slab structures).

[0065] In addition, an elastic sheet (10) may be provided on the upper part of the concrete slab (SB), as shown in FIGS. 4 to 7.

[0066] This is installed to remove foreign substances from the bottom of the concrete slab (SB) and cover it, thereby having the effect of flattening the upper surface of the concrete slab (SB), and in addition to the elastic effect due to the elastic sheet (10), it is possible to obtain the effect of blocking floor impact noise between floors.

[0067] The above elastic sheet is composed of either an EPDM (Ethylene-Propylene Diene Monomer) foam sheet or an EVA (Ethylene Vinyl Acetate) foam sheet, and has excellent shock absorption, high flexibility, and elasticity, thereby having the effect of attenuating inter-floor impact noise.

[0068] The thickness of the above elastic sheet (10) is to be about 1 to 5 mm, and it is preferable to have a thickness of 5 mm. This is because if the thickness of the elastic sheet (10) is 1 mm or less, the elastic effect is negligible, and if it is 5 mm or more, the elastic effect is good, but the space utilization rate is reduced and the floor height is raised due to the increase in the thickness of the floor slab.

[0069] The above-mentioned breathable mat (20) may be provided as a coil mat. In this case, the coil mat is provided in the form of a mat with a thickness of 30 to 40 mm, and the yarn is irregularly twisted to form various types of air layers, thereby providing breathability. Additionally, a certain elastic force is provided by the twisted yarn, and as it supports the mat support panel (30), sufficient elastic force or elastic support force can be provided to the finishing mortar layer (60) provided on top. This prevents cracks or subsidence from occurring in the finishing mortar layer (60), thereby enabling the lifespan to be extended.

[0070] Alternatively, the above breathable mat (20) may be provided as a non-woven mat. In this case, the non-woven mat has a non-woven fabric with a weight of 40 to 60 k / m², a weight of 1,200 to 2,500 g / m², and a thickness of 25 to 40 mm, or 24 k / m², a weight of 600 to 800 g / m², and a thickness of 25 to 40 mm. It is preferable to form a mat with a thickness of 20 to 40 mm by applying pressure with a hydraulic press after perforation. Since it is provided as a non-woven fabric, a certain elastic force is provided, and high breathability can be obtained, such as in a coil shape.

[0071] In the above breathable mat (20), a circular insertion hole (210) is formed at a position corresponding to the support leg (320) formed in the mat support panel (30) to insert the support leg (320) and the steel spring (330), so that the bottom surface of the flat support plate (310) and the top surface of the breathable mat (20) are in contact, and the elastic force of the breathable mat (20) can be used to support the mat support panel (30).

[0072] The mat support panel (30) provided on the upper part of the above-mentioned breathable mat (20) is provided as one of the first, second, or third embodiments of the floor impact sound blocking mat support member (A). By providing the above-mentioned mat support panel (30), a steel spring (330) that further secures elasticity, and an elastic support cap (340), it is possible to sufficiently resist the pressure generated by the weight of the upper structure of the concrete slab (SB), thereby preventing cracks and local deformation from occurring in the finishing mortar layer (60) after construction, thereby extending the lifespan and blocking floor impact sound. Additionally, by shortening the height of the above-mentioned support leg (320), floor impact sound can be blocked even with a thin slab thickness of 120 mm, thereby further increasing the flexibility of remodeling construction.

[0073] The steel spring (330) according to the second embodiment, which is inserted into the mat support panel (30), is coupled to the support leg (320) by a press fit method. When force is applied upward along the lower slope of the stopper (326), the steel spring (330) has a separate movement from the outer surface of the support leg (320) due to the cutting groove (326-1), causing the stopper (326) to move into the space (324) of the support leg (320). When the press fit of the steel spring (330) is completed, it returns to its original position due to the elasticity of the material of the support leg (320), and the steel spring (330) is seated on the horizontal surface (326-2) of the stopper (326) and firmly fixed.

[0074] The elastic support cap (:340) according to the third embodiment, which is inserted into the mat support panel (30), is coupled to the support leg (320) by a fitting method, wherein a fitting part (344) is provided between the inner circumferential surface of the support cap body (341) and the support cap dome part (342) of the support cap bottom part (343), and by fitting the protruding support part (323) of the support leg (320) from top to bottom toward the fitting part (344), the first concave part (322) on the bottom surface of the support leg (320) and the support cap dome part (342) are accurately interlocked and seated, and a groove (344-1) is provided on the outer side of the bottom surface of the fitting part (344), so that the support cap body (341) is momentarily expanded by elasticity toward the outer edge of the support leg (320) and then restored to its original state, thereby supporting The protruding support portion (323) provided on the bottom of the leg (320) is easily fitted into the fitting portion (344) of the support cap body (341).

[0075] The above cushioning material (40) refers to a material installed on a floor structure to absorb impact sound, and the thickness of the above cushioning material (40) must be 20 mm or more, must comply with the insulation standards according to Article 2 of the Building Energy Saving Design Standards, the dynamic elastic modulus must be 40 MN / m or less, and the loss factor must be in the range from 01 to 03.

[0076] In addition, the cushioning material (40) is provided as a cushioning material made of any one of EPS (Expanded Polystyrene), EPP (Expanded Polypropylene), or EVA (Ethylene Vinyl Acetate), but in addition to these forms, it may be provided as any one of non-woven fabric, glass wool in the form of glass fiber, or sponge. Of the cushioning material (40)

[0077] It is preferable to have a thickness of 20×40mm and a size of 500×1000mm, 1000×1000mm, or 1000×1800mm, so that a buffering effect can be further obtained and a further effect of blocking moisture leaked from the heating pipe (50) provided on the top from the concrete slab (SB) can be obtained.

[0078] Additionally, the heating pipe (50) is placed in the cushioning material (40) by means of a plurality of U-shaped fixing pins (510), and both ends of the U-shaped fixing pins (510) are inserted into the interior of the cushioning material (40) to place the heating pipe (50) in the inner diameter of the U-shaped fixing pins (510).

[0079] The thickness of the above finishing mortar layer (60) is preferably 40 mm or more, but it is preferable to make it 70 mm or more. The finishing mortar (M) forming the above finishing mortar layer (60) is generally made by mixing only cement and sand as a binder, and for floor use, the ratio of cement to sand is preferably about 1:3.

[0080] In addition, the upper surface of the finishing mortar layer (60) may further be provided with a floor finishing material including a final finishing material (expanded vinyl flooring, wooden flooring, etc.). Explanation of the symbols

[0081] A: Mat support member B: Inter-floor impact sound insulation structure 10: Elastic sheet 20: Breathable mat 210 : Insertion hole 30 : Mat support panel 310 : Flat base plate 311 : Circular ball 312: Reinforcing edge support bar 313: Reinforcing horizontal support bar 314 : Reinforcing vertical support bar 315 : Reinforcing ring-shaped flange 316: Square through hole 320: Support leg 321: Leg body 323: Protruding support 326 : Stopper 330 : Steel spring 340: Elastic support cap 342: Support cap dome part 344 : Insert part 40 : Cushioning material 50 : Heating pipes 60 : Finishing mortar layer

Claims

Claim 1 In a functional mat support member (A) provided on the upper surface of a concrete slab (SB) of a building structure, the mat support member (A) is formed as a mat support panel (30) in which a plurality of support legs (320) are integrally provided on the bottom surface of a square-shaped flat support plate (310), wherein the flat support plate (310) is provided with circular holes (311) at regular intervals, and a reinforcing rim support member (312) protruding downward is provided on the bottom edge of the flat support plate (310), wherein a plurality of horizontal reinforcing support members (313) and vertical reinforcing support members (314) are provided in a grid pattern inside the reinforcing rim support member (312), and a circular hole (311) provided in the flat support plate (310) is formed at the point where the horizontal reinforcing support member (313) and the vertical reinforcing support member (314) intersect, and the support legs (320) are legs in the shape of a truncated cone that is wider at the top and narrower at the bottom. A floor impact sound blocking mat support member formed by a body (321) and provided at the bottom of a reinforcing ring-shaped flange (315) provided on the edge bottom surface of a circular hole (311) of a flat support plate (310), wherein the bottom surface of the leg body (321) is provided with a first concave portion (322) that is concave upward and a protruding support portion (323) in which the edge of the first concave portion (322) protrudes downward, wherein a space portion (324) is formed inside the leg body (321) and connected to the circular hole (311) of the flat support plate (310), and four vertically elongated slots (325) are provided on the outer surface of the leg body (321). Claim 2 A floor impact sound blocking mat support member according to claim 1, wherein four square through holes (316) are provided at the edges of the circular holes (311) provided in the flat support plate (310), and the square through holes (316) are connected to penetrate from the upper surface of the flat support plate (310) to a certain height on the upper surface of the outer circumference of the leg body (321) of the support leg (320), and four locking tabs (326) are provided protruding outwardly on the upper outer circumference of the leg body (321) corresponding to the square through holes (316). Claim 3 A floor impact sound blocking mat support member according to paragraph 2, characterized in that a steel spring (330) is forcibly fitted from the bottom into the leg body (321) of the support leg (320) and hooked onto four hooks (326) provided on the upper part of the leg body (321). Claim 4 In an inter-floor impact sound blocking structure (B) for noise prevention provided on the upper surface of a concrete slab (SB) of a building structure, the inter-floor impact sound blocking structure (B) comprises a breathable mat (20) provided on the upper surface of the concrete slab (SB), a plurality of mat support panels (30) provided in abutment to the entire upper surface of the breathable mat (20), a cushioning material (40) provided on the entire upper surface where the plurality of mat support panels (30) are provided, a heating pipe (50) placed on the cushioning material (40) by means of a plurality of U-shaped fixing pins (510), and a finishing mortar (M) poured and hardened on the cushioning material (40) where the heating pipe (50) is placed to form a finishing mortar layer (60), wherein the mat support panels (30) are formed as mat support panels (30) in which a plurality of support legs (320) are integrally provided on the bottom surface of a square-shaped flat support plate (310), and the flat plate A base plate (310) is provided with circular holes (311) at regular intervals, and a reinforcing rim support member (312) protruding downward is provided on the bottom edge of the flat base plate (310). A plurality of horizontal reinforcing support members (313) and vertical reinforcing support members (314) are provided in a grid pattern inside the reinforcing rim support member (312), and a circular hole (311) provided in the flat base plate (310) is formed at the point where the horizontal reinforcing support members (313) and vertical reinforcing support members (314) intersect. The support leg (320) is formed as a leg body (321) in the shape of a truncated cone that is wider at the top and narrower at the bottom, and is provided at the bottom of a reinforcing ring-shaped flange (315) provided on the bottom edge of the circular hole (311) of the flat base plate (310). The bottom surface of the leg body (321) is a first concave shape toward the top. The concave portion (322) and the edge of the first concave portion (322) are provided with a protruding support portion (323) protruding downward, and a space portion (324) is formed inside the leg body (321) and connected to the circular hole (311) of the flat support plate (310).A floor impact sound blocking structure for preventing noise, characterized in that the outer surface of the above-mentioned leg body (321) is provided with four vertically elongated slots (325). Claim 5 A floor impact sound blocking structure for preventing noise, characterized in that, in claim 4, an elastic sheet (10) is provided between the upper part of the concrete slab (SB) and the breathable mat (20), and the breathable mat (20) is provided as a coil mat or a non-woven mat, and the breathable mat (20) is provided with a circular insertion hole (210) so that the support leg (320) of the mat support panel (30) is inserted therein.

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