Floor impact sound cut off elastic panel

Abstract

This invention relates to an elastic panel for blocking floor impact sound and an inter-floor floor impact sound blocking structure for noise prevention using the same. It ensures sufficient support force by preventing separation between the elastic mat and the support panel through a press-fit method in which an air layer is provided between twisted yarns, thereby preventing cracks or deformation in the finishing mortar layer and stabilizing the slab structure to block floor impact sound.

Description

Technology Field

[0001] This invention relates to an elastic plate for blocking floor impact sound, wherein a plurality of support legs provided on a support panel are forcibly fitted onto an elastic mat in which an air layer is provided between twisted yarns, thereby preventing the separation of the elastic mat and the support panel and ensuring sufficient support so as to prevent cracks or deformation in the finishing mortar layer, and thereby stabilizing the slab structure so as to block floor impact sound. Background Technology

[0003] 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.

[0004] The floor impact sound insulation structure standard for preventing noise between floors refers to a floor structure that has been approved by verifying the performance of the floor impact sound insulation structure, and the performance of the floor impact sound insulation structure is a structure approved by verifying that the heavy impact sound (referring to floor impact sound caused by heavy and soft impact) is 49 dB or less and the light impact sound (referring to floor impact sound caused by relatively light and hard impact) is 49 dB or less.

[0005] Conventional technology, such as Registered Patent Publication No. 10-114219 (April 25, 2012), allows for reducing inter-floor noise by installing a cushioning material on a concrete slab, pouring lightweight foamed concrete on top of it, and then applying a finishing mortar layer and floor finishing material on top of it. However, there was a problem in that the construction was complex and time-consuming, leading to increased costs.

[0006] In contrast to other conventional technologies, Public Patent Publication No. 10-2007-0003729 (2007.01.05) was designed to allow for expansion through a fitting structure and to ensure a high degree of freedom for the piping line, thereby improving construction convenience. However, there was a problem in that a void was created in the lower part of the pipe block during the concrete pouring process, and due to this cause, vibration or impact force was amplified by a resonance phenomenon.

[0007] Another prior art, Registered Special Publication No. 10-2403744 (May 25, 2022), is a floor structure for reducing inter-floor noise comprising a floor slab, a buffer layer installed on the upper surface of the floor slab, and a finishing mortar layer installed on the upper surface of the buffer layer. The buffer layer includes a coil mat placed on the upper surface of the floor slab and a cushioning material placed on the upper surface of the coil mat to reduce inter-floor noise. However, after construction is completed, there was a problem in that cracks, deformation, and sinkholes occurred in the part located above the coil mat due to local impact or load acting from above, and there was a problem in that re-construction was required due to these problems. Prior art literature

[0009] Registered Patent Publication No. 10-114219 (2012.04.25) Published Patent Publication No. 10-2007-0003729 (2007.01.05) Registered Special Publication No. 10-2403744 (2022.05.25) The problem to be solved

[0010] This invention ensures that the support panel remains attached to the elastic mat, thereby preventing separation during manufacturing, storage, transportation, and construction processes, and prevents cracking or deformation of the finishing mortar layer after construction. By presenting an inter-floor impact sound insulation structure for preventing noise between furniture and households in accordance with relevant regulations such as the Building Act, it enables the prevention of personal injury and property damage caused by inter-floor noise disputes between neighbors and the creation of a pleasant living environment. means of solving the problem

[0012] The invention relates to a floor impact sound blocking elastic panel (A) provided on the upper surface of a concrete slab (SB), which is a floor structure of a building structure, wherein the floor impact sound blocking elastic panel (A) is provided by combining a support panel (20) on the upper surface of an elastic mat (10), wherein the elastic mat (10) is formed in the form of a mat with a thickness of 20 to 40 mm, and the support panel (20) is formed of a synthetic resin material and has a plurality of support legs (220) integrally formed on the lower surface of a rectangular base plate (210), and the support legs (220) are formed in a conical shape with a pointed lower end so as to be forcibly fitted into the elastic mat (10).

[0013] In addition, the elastic mat (10) is characterized by being formed with elasticity by having various types of air layers (102) formed by irregularly twisting yarns (101) having a diameter of 0.5 to 1.5 mm formed from a synthetic resin composition.

[0014] Additionally, the support panel (20) is characterized by having a plurality of support legs (220) integrally formed on the bottom surface of the base plate (210), wherein the base plate (210) is provided with a plurality of horizontal support members (212) and vertical support members (213) in a grid pattern inside the edge support members (211), and reinforcing support members (214) connected at positions orthogonal to the horizontal support members (212) and vertical support members (213) are provided diagonally.

[0015] Additionally, the support leg (220) of the support panel (20) is formed integrally with an upper cylindrical body (221) and a lower conical pointed part (222), wherein the upper cylindrical body (221) of the support leg (220) is provided with a certain length so that it is inserted into the elastic mat (10) to secure support, and the lower conical pointed part (222) of the support leg (220) is formed in a conical shape with a pointed lower end so that it is forcibly fitted into the elastic mat (10), and the outer surface of the conical pointed part (222) is provided with a plurality of vertically elongated holes (222-1).

[0016] Additionally, the support leg (220) of the support panel (20) is formed integrally with an upper cylindrical body (221) and a lower conical pointed part (222), wherein 2 to 4 vertical protrusions (221-1) are provided protruding from the outer surface of the cylindrical body (221), and a plurality of vertically elongated grooves (222-1) are provided on the outer surface of the conical pointed part (222), and a tapered part (221-1a) inclined downward is provided at the lower end of the vertical protrusions (221-1) provided on the outer surface of the cylindrical body (221), and the grooves (222-1) are provided to be connected to the space (S) of the support leg (220).

[0017] Additionally, some of the support legs (220) of the support panel (20) are provided with a spring support member (230) and are fixed by being forcibly fitted into the cylindrical body (221) of the support leg (220). The spring support member (230) has an upper fitting support member (231) and a lower support support member (232) connected by a coil spring (233). The fitting support member (231) is provided with a disc flange (231-2) having a plurality of verification holes (231-2a) that extend outwardly from the upper part of a fitting body (231-1) having a fitting hole (231-1a). A spring upper fitting member (231-3) having a downward-facing ring shape is provided at the edge of the disc flange (231-2). The support support member (232) is a disc-shaped support. The body (232-1) is provided with a spring lower fitting part (232-2) with an open top, wherein the spring lower fitting part (232-2) has a leakage discharge hole (232-2a) at its bottom that penetrates the support body (232-1), so that the upper part of the coil spring (233) is fitted and fixed into the inside of the spring upper fitting part (231-1) of the fitting support part (231), and the lower part of the coil spring (233) is fitted and fixed into the outside of the spring lower fitting part (232-2) of the support support part (232).

[0018] In addition, the height of the support panel (20) is provided to be smaller than the thickness of the elastic mat (10), so that when the floor impact sound blocking elastic panel (A), into which the support legs (220) of the support panel (20) are inserted into the elastic mat (10), is installed on the upper surface of the concrete slab (SB), the support legs (220) of the support panel (20) are provided to be lifted about 4 to 8 mm from the upper surface of the concrete slab (SB).

[0019] The invention relates to a floor impact sound blocking structure (B) for preventing noise between floors, wherein a floor impact sound blocking elastic panel (A) is provided on the upper part of a concrete slab (SB), which is a floor structure of a building structure, wherein the floor impact sound blocking elastic panel (A) is provided by combining a support panel (20) on the upper part of an elastic mat (10), a cushioning material (30) is provided on the upper part of the floor impact sound blocking elastic panel (A), a hot water pipe (50) is fixed on the upper part of the cushioning material (30) by a plurality of U-shaped pins (510), and a finishing mortar (M) is poured and hardened on the upper part of the cushioning material (30) to which the hot water pipe (50) is fixed, thereby providing a finishing mortar layer (60).

[0020] The invention relates to a floor impact sound blocking structure (B) for preventing noise between floors, wherein a floor impact sound blocking elastic panel (A) is provided on the upper part of a concrete slab (SB), which is a floor structure of a building structure, wherein the floor impact sound blocking elastic panel (A) is provided by combining a support panel (20) on the upper part of an elastic mat (10), a cushioning material (30) is provided on the upper part of the floor impact sound blocking elastic panel (A), a hot water panel (40) is provided on the upper part of the cushioning material (30), a hot water pipe (50) is provided on the upper part of the hot water panel (40), and a finishing mortar (M) is poured and hardened on the upper part of the hot water panel (40) on which the hot water pipe (50) is provided to form a finishing mortar layer (60).

[0021] An elastic sheet (ES) is provided on the upper part of the concrete slab (SB), and the elastic sheet (ES) is characterized by being made of a synthetic resin material having a thickness of 1 to 5 mm.

[0022] The above cushioning material (30) is characterized by being provided as any one of EPS (Expanded Polystyrene), EPP (Expanded Polypropylene), and EVA (Ethylene Vinyl Acetate).

[0023] The hot water pipe (50) provided on the upper part of the hot water panel (40) is characterized by being provided to be placed in the hot water pipe placement groove (420) between the plurality of guide protrusions (410) provided on the hot water panel (40).

[0024] The above elastic mat (10) is formed in the shape of a mat with a thickness of 20 to 40 mm, most preferably 33 mm, and the above elastic mat (10) is characterized by having various coil layers (102) formed by irregularly twisting yarn (101; Grey yarn) having a diameter of 0.5 to 1.5 mm formed from EVA (Ethylene-Vinyl Acetate copolymer), which is a synthetic resin composition.

[0025] The above buffer material (30) is provided with EPS (Expanded Polystyrene), and the above hot water pipe (50) is placed on top of the above buffer material (30) and fixed by a plurality of U-shaped pins (510). Effects of the invention

[0027] This invention provides an elastic mat with an air layer between twisted yarns, and by allowing a support panel to be fitted by a plurality of support legs provided on the support panel without using a separate adhesive, it is possible to obtain the effect of preventing the elastic mat and the support panel from separating during manufacturing, storage, transportation, and installation processes.

[0028] In addition, by enabling sufficient resistance to impacts and loads acting from above through the elastic mat and support panel, cracks and local deformations in the finishing mortar layer after construction can be prevented, thereby extending the lifespan.

[0029] In addition, by ensuring that a constant elastic force is always applied by the spring support of the support panel, the effect of being able to resist impacts and loads acting from above can be obtained.

[0030] Furthermore, through this, it is possible to prevent conflicts arising from disputes between neighbors regarding floor impact noise in multi-unit housing, thereby achieving the effect of adjusting a pleasant living environment. Brief explanation of the drawing

[0032] FIG. 1 is a perspective view showing a floor impact sound blocking elastic panel according to the present invention separated. FIG. 2 is a longitudinal cross-sectional view illustrating a floor impact sound blocking elastic panel according to the present invention. FIG. 3 is a longitudinal cross-sectional view illustrating an inter-floor impact sound blocking structure for noise prevention using an elastic panel for blocking floor impact sound according to the present invention. FIG. 4 is a perspective view showing the main parts separated in an inter-floor impact sound blocking structure for noise prevention using a floor impact sound blocking elastic panel according to the present invention. FIG. 5a is a longitudinal cross-sectional view illustrating another embodiment of an inter-floor impact sound blocking structure for noise prevention using an elastic panel for floor impact sound blocking according to the present invention, and FIG. 5b is a perspective view illustrating another embodiment of an inter-floor impact sound blocking structure for noise prevention using an elastic panel for floor impact sound blocking according to the present invention. FIG. 6 is a longitudinal cross-sectional view illustrating another embodiment of an inter-floor impact sound blocking structure for noise prevention using a floor impact sound blocking elastic panel according to the present invention. FIG. 7 is an exploded perspective view illustrating another embodiment of a support panel in another embodiment of an inter-floor impact sound blocking structure for noise prevention using a floor impact sound blocking elastic panel according to the present invention. FIG. 8 is a perspective view showing a spring support member coupled to a support panel separated from the bottom surface in another embodiment of an inter-floor impact sound blocking structure for noise prevention using a floor impact sound blocking elastic panel according to the present invention. Specific details for implementing the invention

[0033] An embodiment of the invention is described below with reference to the attached drawings.

[0034] FIG. 1 is a perspective view showing an elastic panel for blocking floor impact sound according to the present invention in an exploded manner, and FIG. 2 is a longitudinal cross-sectional view showing an elastic panel for blocking floor impact sound according to the present invention.

[0035] The floor impact sound blocking elastic panel (A) according to the invention is provided so that the lower part of the support panel (20) is placed on or butted against the upper or upper surface of the lower elastic mat (10) without using a separate adhesive, thereby preventing separation from each other during manufacturing, storage, transportation, and installation processes, and thus making storage, installation, or construction easier. It is provided so that sufficient support force is secured to prevent cracks and local deformation from occurring in the finishing mortar layer after construction, thereby extending the lifespan, and is provided on the upper part of the concrete slab (SB), which is the floor structure of the building structure, as shown in FIGS. 1 and 2.

[0036] The above floor impact sound blocking elastic panel (A) is provided such that a support panel (20) is coupled to the upper part of the elastic mat (10), and the elastic mat (10) is provided to have a mat shape with a thickness of 20 to 40 mm, and it is most preferable to have a thickness of 33 mm.

[0037] The above elastic mat (10) is formed by irregularly twisting a yarn (101; Grey yarn) having a diameter of 0.5 to 1.5 mm formed from a synthetic resin composition to provide various types of air layers (102), thereby providing a predetermined elastic force. At this time, the upper portion of the elastic mat (10) maintains a connected state in which the yarns (101) are compressed by a pressure roller (not shown) during the heating, pressing, and cooling process, thereby preventing the phenomenon of gaps opening even when a certain amount of tensile force is applied. That is, a tightening force or a restoring force can be applied between the yarns (101).

[0038] This prevents the support leg (220), which is provided to protrude from the lower part of the support panel (20) described later, from coming off in the reverse direction as the surface of the support leg (220) is tightened with a predetermined pressure while the support leg (220) is inserted.

[0039] It is preferable that the synthetic resin composition of the above elastic mat (10) be maintained as EVA (Ethylene-Vinyl Acetate copolymer), and TPR (synthetic rubber), PU (Polyurethane), POP (Polyolefin Plastomer), or EVA (Ethylene-Vinyl Acetate copolymer) is preferred.

[0040] A predetermined elastic force is provided by the twisted yarn (101) on the above elastic mat (10) to support the support panel (30) described later, thereby providing sufficient elastic force or elastic support force to the finishing mortar layer (60) provided on the upper side.

[0041] This prevents cracks or subsidence from occurring in the finishing mortar layer (60), thereby extending its lifespan.

[0042] The support panel (20) is formed of a synthetic resin material, and a plurality of support legs (220) are integrally formed on the bottom surface of a rectangular base plate (210). The support legs (220) are formed in a conical shape with a pointed bottom end so as to be fitted into the elastic mat (10) by force fitting. At this time, it is preferable that the size of the rectangular base plate (210) of the support panel (20) be 500×500mm, 500×1000mm, or 1000×1000mm.

[0043] A plurality of support legs (220) are integrally formed on the bottom surface of the base plate (210), and the base plate (210) is provided with a plurality of horizontal support legs (212) and vertical support legs (213) repeating in a grid pattern inside the rim support legs (211), and a reinforcing support leg (214) connected at a position orthogonal to the horizontal support legs (212) and vertical support legs (213) is provided diagonally so that sufficient strength can be provided while reducing the amount of material used.

[0044] The above support leg (220) is designed so that its lower part is forcibly fitted onto the elastic mat (10) to prevent separation from the elastic mat (10), and the upper cylindrical body (221) and the lower conical pointed part (222) are formed integrally.

[0045] The above cylindrical body (221) has a predetermined length so that it can be inserted into the elastic mat (10) and simultaneously secure a supporting force through the tightening force or restoring force acting or generated between the yarn (101) and the yarn (101). That is, when the yarn (101) and the yarn (101) are in contact with the cylindrical body (221), a tightening force is applied, causing them to be tightened like a rubber band, thereby preventing them from sliding and separating in the reverse direction.

[0046] Two to four vertical protrusions (221-1) are provided protruding from the outer surface of the cylindrical body (221), and a tapered portion (221-1a) inclined downward is provided at the lower end of the vertical protrusions (221-1). At this time, it is preferable that the vertical protrusion (221-1) has a thickness thinner than the diameter of the yarn (101). This is because, as shown in the enlarged view of the upper part of FIG. 2, a notch groove (NG) is formed on the surface of the vertical protrusion (221-1) to a predetermined depth by the tightening force acting on the yarn (101) during the process in which a tightening force is applied to the cylindrical outer surface inserted between the yarns (101). As the yarn (101) is inserted into the notch groove (NG) and held in place, it is possible to prevent the yarn (101) from sliding along the outer surface of the cylindrical body (221). In other words, it is possible to prevent the elastic mat (10) and the support panel (20) from being separated.

[0047] The tapered portion (221-1a) of the above-mentioned vertical protrusion (221-1) prevents the vertical protrusion (221-1), which is provided to protrude from the outer periphery of the cylindrical body (221), from interfering and getting caught during the process in which the support leg (220) of the base plate (210) is inserted into the elastic mat (10) and the pointed portion (222) is easily inserted according to its shape, and subsequently the cylindrical body (221) is inserted. That is, it provides the effect of allowing the yarn (101) to easily move to the vertical protrusion (221-1).

[0048] The above-mentioned conical pointed part (222) is formed in a conical shape with a pointed lower end so that it can be easily forcibly fitted into the elastic mat (10). When the lower part of the support panel (20) is placed on the upper part of the elastic mat (10) and pressure is applied using an unillustrated hydraulic press or caterpillar puller, the pointed part (222) is easily inserted from the upper part of the elastic mat (10) toward the lower part due to the pressure, and at the same time, the effect of being forcibly fitted is provided.

[0049] The outer surface of the above-mentioned conical pointed part (222) is provided with a plurality of vertically elongated holes (222-1) and formed to be connected to a space (S) provided inside the support leg (220), thereby preventing some of the floor impact sound from being transmitted downward through the elongated holes (222-1) and swirling inside, and allowing the strength to be reinforced while reducing the amount of material used.

[0050] The height of the support panel (20) is provided to be smaller than the thickness of the elastic mat (10), so that when the floor impact sound blocking elastic panel (A), which has a form in which the support legs (220) of the support panel (20) are inserted into the elastic mat (10), is installed on the upper surface of the concrete slab (SB), the support legs (220) of the support panel (20) are provided to be lifted about 4 to 8 mm from the upper surface of the concrete slab (SB).

[0051] This is first made elastic like a spring by the elastic mat (10). That is, as the square support plate (210) connected to the support leg (220) of the support panel (20) is supported by the elastic mat (10), the elastic mat (10) is given elastic force like a spring, and the square support plate (210) of the support panel (20) is also provided with the effect of receiving elasticity due to the elastic force of the elastic mat (10) located below the support panel (20).

[0053] FIG. 3 is a longitudinal cross-sectional view illustrating an inter-floor impact sound blocking structure for noise prevention using an elastic panel for floor impact sound blocking according to the present invention, and FIG. 4 is a perspective view illustrating a key part separated in the inter-floor impact sound blocking structure for noise prevention using an elastic panel for floor impact sound blocking according to the present invention.

[0055] As shown in FIGS. 3 and 4, the inter-floor impact sound blocking structure (B) for noise prevention using the floor impact sound blocking elastic panel according to the present invention is formed by providing a floor impact sound blocking elastic panel (A) on the upper part of a concrete slab (SB), which is the floor structure of a building structure.

[0056] The above floor impact sound blocking elastic panel (A) is provided with a support panel (20) combined on top of an elastic mat (10), and a cushioning material (30) is provided on top of the floor impact sound blocking elastic panel (A).

[0057] A hot water pipe (50) is fixed to the upper part of the above cushioning material (30) by a plurality of U-shaped pins (510), and a finishing mortar (M) is poured and hardened on the upper part of the cushioning material (30) to which the hot water pipe (50) is fixed, thereby providing a finishing mortar layer (60) to prevent inter-floor impact sound.

[0058] It is preferable that an elastic sheet (ES) be placed over the upper part of the concrete slab (SB) which is the lower part of the elastic mat (10), and it is even more preferable that the elastic sheet (ES) be made of a synthetic resin material having a thickness of 1 to 5 mm.

[0059] It is preferable that the above-mentioned cushioning material (30) be provided as one of EPS (Expanded Polystyrene), EPP (Expanded Polypropylene), or EVA (Ethylene Vinyl Acetate), thereby enabling a greater cushioning effect.

[0060] The above cushioning material (30) refers to a material installed on a floor structure to absorb impact sound, and it is preferable to install them in close contact so that no gaps occur between the cushioning materials (30) and to finish the joints with bonding tape, etc.

[0061] The thickness of the above cushioning material (30) must be 20 mm or more, and the above cushioning material (30) must comply with the insulation standards according to Article 2 of the energy saving design standards for buildings, the dynamic elastic modulus must be 40 MN / m or less, and the loss factor must be in the range from 01 to 03.

[0062] The above cushioning material (30) is provided as a cushioning material in 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 a non-woven fabric, glass wool in the form of glass fiber, or a sponge. It is preferable that the thickness of the above cushioning material (30) be 20×40mm and its size be 500×1000mm, 1000×1000mm, or 1000×2000mm.

[0063] The thickness of the above finishing mortar layer (60) is preferably 40 mm or more, but it is preferable to make it 60 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.

[0064] On the upper surface of the above finishing mortar layer (60), a floor finishing material (70) including a final finishing material (expanded vinyl flooring, wooden flooring, etc.) is provided.

[0066] FIG. 5a is a longitudinal cross-sectional view illustrating another embodiment of an inter-floor impact sound blocking structure for noise prevention using an elastic panel for floor impact sound blocking according to the present invention, and FIG. 5b is a perspective view illustrating another embodiment of an inter-floor impact sound blocking structure for noise prevention using an elastic panel for floor impact sound blocking according to the present invention in separate sections.

[0068] As illustrated in FIGS. 5a and 5b, the inter-floor impact sound blocking structure (B) for noise prevention using the floor impact sound blocking elastic panel according to the present invention is formed by providing a floor impact sound blocking elastic panel (A) on the upper part of a concrete slab (SB), which is the floor structure of a building structure.

[0069] The above floor impact sound blocking elastic panel (A) is provided with a support panel (20) combined on top of an elastic mat (10), and a cushioning material (30) is provided on top of the floor impact sound blocking elastic panel (A).

[0070] A hot water panel (40) is provided on the upper part of the above-mentioned buffer material (30), a hot water pipe (50) is provided on the upper part of the above-mentioned hot water panel (40), and a finishing mortar (M) is poured and hardened on the upper part of the hot water panel (40) provided with the hot water pipe (50) to form a finishing mortar layer (60), so that construction can be easily performed. At this time, the hot water pipe (50) provided on the upper part of the above-mentioned hot water panel (40) is provided to be placed in the hot water pipe placement groove (420) between the plurality of guide protrusions (410) provided on the above-mentioned hot water panel (40), thereby making it easy to install the hot water pipe (50).

[0072] FIG. 6 is a longitudinal cross-sectional view illustrating another embodiment of an inter-floor impact sound blocking structure for noise prevention using an elastic panel for floor impact sound blocking according to the present invention, FIG. 7 is an exploded perspective view illustrating another embodiment of a support panel in another embodiment of an inter-floor impact sound blocking structure for noise prevention using an elastic panel for floor impact sound blocking according to the present invention, FIG. 8 is a perspective view illustrating a spring support member coupled to a support panel separated from the bottom surface in another embodiment of an inter-floor impact sound blocking structure for noise prevention using an elastic panel for floor impact sound blocking according to the present invention.

[0074] As shown in FIGS. 6 and 8, the inter-floor impact sound blocking structure (B) for noise prevention using the floor impact sound blocking elastic panel according to the present invention is formed by providing a floor impact sound blocking elastic panel (A) on the upper part of a concrete slab (SB), which is the floor structure of a building structure.

[0075] The above floor impact sound blocking elastic panel (A) is provided with a support panel (20) combined on top of an elastic mat (10), and a cushioning material (30) is provided on top of the floor impact sound blocking elastic panel (A).

[0076] A hot water pipe (50) is fixed to the upper part of the above cushioning material (30) by a plurality of U-shaped pins (510), and a finishing mortar (M) is poured and hardened on the upper part of the cushioning material (30) to which the hot water pipe (50) is fixed, thereby providing a finishing mortar layer (60) to prevent inter-floor impact sound.

[0077] The above support panel (20) is provided with a spring support part (230) on some of the support legs (220) so that it is fixed by being forcibly fitted into the cylindrical body (221) of the support leg (220).

[0078] The above spring support member (230) is provided such that the upper fitting support member (231) and the lower support support member (232) are connected by a coil spring (233).

[0079] Here, the fitting support (231) is provided with a disc flange (231-2) having a plurality of verification holes (231-2a) that extend outwardly on the upper part of a fitting body (231-1) having a fitting hole (231-1a), and a spring upper fitting part (231-3) having a downwardly facing ring shape is provided on the edge of the disc flange (231-2).

[0080] The above support member (232) is provided with a spring lower fitting part (232-2) with an open top on a disc-shaped support body (232-1), and the spring lower fitting part (232-2) is provided with a leakage discharge hole (232-2a) that penetrates the support body (232-1) at the bottom, so that the upper part of the coil spring (233) is fitted and fixed to the inside of the spring upper fitting part (231-1) of the fitting support member (231), and the lower part of the coil spring (233) is fitted and fixed to the outside of the spring lower fitting part (232-2) of the support member (232).

[0081] It is desirable that the coil spring (233) of the spring support part (230) be further reinforced with the required strength or elasticity depending on the thickness or diameter, and at this time, assuming the load acting from the top is 100 kg, it is desirable that it be able to touch the floor when about 85 to 95 kg 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 25, so the load of the finishing mortar layer (60) is about 100kg. At this time, when the supporting leg (220) of the supporting panel (20) is lifted about 4 to 8mm from the upper surface of the concrete slab (SB) or the elastic sheet (ES), the elastic mat (10) acts as a spring, and as the elastic force is applied by the spring support part (230), the load of the finishing mortar layer (60) can be reduced by 80 to 90%. Explanation of the symbols

[0083] 10:Elastic mat 20:Support panel 30: Cushioning material 40: Hot water panel 50: Hot water pipe 60: Finishing mortar layer 101: Yarn 102: Air layer 210: Base plate 211: Edge support ribs 212: Horizontal support bar 213: Vertical support bar 214: Reinforcement support bar 220: Support leg 221: Cylindrical body 222: Pointed part 222-1: Janghol

Claims

Claim 1 In a floor impact sound blocking elastic panel (A) provided on the upper part of a concrete slab (SB), which is a floor structure of a building structure, the floor impact sound blocking elastic panel (A) is provided by combining a support panel (20) on the upper part of an elastic mat (10), wherein the elastic mat (10) is formed in the form of a mat with a thickness of 20 to 40 mm, and the support panel (20) is formed of a synthetic resin material and has a plurality of support legs (220) integrally formed on the lower surface of a rectangular base plate (210), and the base plate (210) of the support panel (20) has a plurality of horizontal support ribs (212) and vertical support ribs (213) provided in a grid shape inside the edge support ribs (211), and reinforcing support ribs (214) are provided diagonally connected at positions where the horizontal support ribs (212) and vertical support ribs (213) are orthogonal, and the support panel (20) A floor impact sound blocking elastic panel characterized in that the support leg (220) is formed in a conical shape with a pointed lower end so as to be forcibly fitted into the elastic mat (10), wherein the support leg (220) is integrally formed with an upper cylindrical body (221) and a lower conical pointed part (222), wherein the upper cylindrical body (221) is provided with a certain length so as to be inserted into the elastic mat (10) to secure support, and the conical pointed part (222) is formed in a conical shape with a pointed lower end so as to be forcibly fitted into the elastic mat (10), and a plurality of vertically elongated holes (222-1) are provided on the outer surface of the conical pointed part (222). Claim 2 In claim 1, the elastic mat (10) is characterized by being formed to have elasticity by irregularly twisting yarns (101) having a diameter of 0.5 to 1.5 mm formed from a synthetic resin composition to provide various shapes of air layers (102). Claim 3 delete Claim 4 delete Claim 5 delete Claim 6 delete Claim 7 delete

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