Interlayer floor impact sound exhaustion gap secure

Abstract

This invention relates to a gap securing device for discharging impact sound between floors, and in particular, to a gap securing device for discharging impact sound between floors that prevents floor impact sound from being discharged to the outside and spreading to the lower floor through an impact sound discharge gap provided between a concrete slab and a side wall.

Description

Technology Field

[0001] This invention relates to a gap securing device for discharging impact sound between floors, and in particular, to a gap securing device for discharging impact sound between floors that prevents floor impact sound from being discharged to the outside and spreading to the lower floor through an impact sound discharge gap provided between a concrete slab and a side wall. 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 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.

[0005] Conventional technology, such as Registered Patent Publication No. 10-114219 (April 25, 2012), allows for the reduction of 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, but there was a problem in that impact sound from the floor was transmitted to the walls and windows.

[0006] Meanwhile, although it is possible to prevent impact sound from being transmitted to walls and windows by providing wall cushioning material at the bottom of the wall and installing floor cushioning material in close contact with the bottom of the wall cushioning material and the floor slab, there was a cumbersome issue at the construction site where the upper part of the wall cushioning material had to be cut manually after the floor construction was completed following the attachment of the wall cushioning material.

[0007] As prior art for such wall cushioning materials, a method for installing side insulation material for a multi-unit building wall was proposed in Public Patent Publication No. 10-2005-0048049 (May 24, 2005). However, there was a problem in that the side insulation material protruding above the plaster concrete layer was cut and then remained embedded, so the inter-floor noise could not escape to the outside and remained as it was. Prior art literature

[0009] Registered Patent Publication No. 10-114219 (April 25, 2012) Published Patent Publication No. 10-2005-0048049 (May 24, 2005) The problem to be solved

[0010] This invention allows for the easy provision of an impact sound exhaust gap between a concrete slab and a side wall, while ensuring that a foam sheet having a predetermined thickness remains on the inner side wall, thereby preventing the diffusion and transmission of impact sound or heat loss through the side wall. means of solving the problem

[0012] The present invention relates to an inter-floor floor impact sound discharge gap securing member (10) having a floor impact sound discharge gap section (S) provided between a concrete slab (SB) and a side wall surface (SW), wherein the discharge gap securing member (10) is provided with a securing retainer section (110) on one side and a securing remover section (120) on the other side, wherein the securing retainer section (110) is provided with a one-side release paper section (112) on one side of a one-side foam sheet (111) and a first other-side release paper section (113) on the other side of the one-side foam sheet (111), and the securing remover section (120) is provided with a second other-side release paper section (122) on the other side of a other-side foam sheet (121), wherein the second other-side release paper section (122) is a second other-side release paper (122a) on the second other side It is characterized by being attached to the other side of the other foam sheet (121) by means of an adhesive layer (122b), and having a sheet (123) on the other side of the second release paper portion (122).

[0013] Additionally, the one-sided release liner portion (112) of the above-mentioned retaining portion (110) is characterized in that the one-sided release liner (112a) is attached to one side of the one-sided foam sheet (111) by the one-sided adhesive layer (112b), wherein the one-sided release liner (112a) is provided with an upper one-sided retaining release liner (112a-1) and a lower one-sided remover release liner (112a-2), and the one-sided adhesive layer (112b) is provided with an upper one-sided retaining adhesive layer (112b-1) and a lower one-sided exposed adhesive layer (112b-2).

[0014] In addition, the one-sided remover release liner (112a-2) is separated, and the exposed one-sided adhesive layer (112b-2) is attached to the concrete side wall (SW).

[0015] Additionally, the first release liner portion (113) is characterized in that the first release liner (113a) is attached to the other side of the foamed sheet (111) by the first adhesive layer (113b), wherein the first adhesive layer (113b) is provided with an upper first exposed adhesive layer (113b-1) and a lower first retaining adhesive layer (113b-2), and the first release liner (113a) is provided to be attached to the first retaining adhesive layer (113b-2) so that the first exposed adhesive layer (113b-1) is exposed, and the upper side of the foamed sheet (121) of the retaining remover portion (120) is attached to the first exposed adhesive layer (113b-1).

[0016] In addition, the second release liner portion (122) of the above-mentioned securing remover portion (120) is characterized in that the second release liner (122a) is attached to the other side of the other foam sheet (121) by the second adhesive layer (122b).

[0017] Additionally, the second adhesive layer (122b) is provided with an upper second adhesive layer (122b-1) and a lower second adhesive layer (122b-2), and the second release liner (122a) is provided to be adhered to the second adhesive layer (122b-2) so that the second adhesive layer (122b-1) is exposed, and the upper portion of the sheet (123) is provided to be adhered to the second adhesive layer (122b-1).

[0018] Additionally, the sheet (123) is characterized by having a cut sheet (123-2) provided below the upper remover sheet (123-1), and a retain sheet (123-3) provided below the cut sheet (123-2).

[0019] Additionally, the remover sheet (123-1) and the cut sheet (123-2) are provided to be adhered to the second side exposed adhesive layer (122b-1) of the second side release paper portion (122).

[0020] In addition, the above-mentioned cut sheet (123-2) is characterized by having a tear line (123-2a) that is repeated in a dotted line shape along the length direction, with a constant upper and lower interval.

[0021] In addition, the tear line (123-2a) provided on the above-mentioned tear sheet (123-2) is characterized by having a line marking portion (123-2b) having a predetermined thickness in the middle.

[0022] Meanwhile, a floor impact sound discharge gap (S) provided between a concrete slab (SB) and a side wall (SW) is constructed using an inter-floor floor impact sound discharge gap securing hole, and an inter-floor floor impact sound blocking structure having such a floor impact sound discharge gap (S) is provided with a discharge gap securing hole (10) on the concrete side wall (SW), an elastic sheet (20) is provided on the upper part of the concrete slab (SB), an air mat (30) is provided on the upper part of the elastic sheet (20), a support panel (40) is provided on the upper part of the air mat (30), a cushioning material (50) is provided on the upper part of the support panel (40), a hot water pipe (70) is provided to be placed on a hot water panel (60) placed on the upper part of the cushioning material (50), and a finishing mortar (M) is poured and hardened on the upper part of the hot water panel (60) on which the hot water pipe (70) is placed to provide a finishing mortar layer (80).

[0023] The above air mat (30) is formed in the shape of a mat with a thickness of 30 to 40 mm, and the yarn (310) is irregularly twisted to form various types of air layers (320). An elastic support insertion hole (330) having a predetermined diameter is provided in the horizontal and vertical directions, and the lower part of the elastic support part (430) is inserted and penetrated so that the lower part of the elastic support part (430) rests on the upper surface of the elastic sheet (20). At this time, the above air mat (30) can be used as a bed mattress, and it is preferable that the elastic support insertion hole (330) be perforated by applying heat above a certain temperature to melt rather than by mechanical perforation, and the elastic support insertion hole (330) provided by thermal perforation is 1 m 2 It is desirable to maintain 16 to 20.

[0024] The support panel (40) is formed with a plurality of support legs (420) integrally formed on the bottom surface of a square base plate (410) with a height of 22 to 36 mm, and the support legs (420) are formed in a conical shape with a pointed bottom end so as to be inserted into and supported by the air mat (30). The support legs (420) of the support panel (40) are inserted into the air mat (30) with a thickness of 30 to 40 mm and supported by the concrete slab (SB) on the upper part of the air mat (30) in which the air layer (320) is formed, thereby sufficiently supporting the load of the cushioning material (50), hot water panel (60), hot water pipe (70), and finishing mortar layer (80) provided on the upper part of the support panel (40).

[0025] The square base plate (410) of the support panel (40) is provided with a plurality of horizontal support bars (412) and vertical support bars (413) in a grid pattern inside the edge support bars (411), and the support legs (420) are provided at positions where the horizontal support bars (412) and vertical support bars (413) of the square base plate (410) are orthogonal, and the square base plate (410) of the support panel (40) may be provided with reinforcing support bars (414) in a diagonal direction.

[0026] The support leg (420) of the support panel (40) is formed in a pointed conical shape at the bottom so as to be inserted into and supported by the air mat (30). A pointed closed support portion (421) having a closed shape is formed at the bottom of the support leg (420), a circular opening (422) with an open top is formed at the top, a conical space (423) is formed inside so as to be connected to the circular opening (422), and a plurality of vertically elongated grooves (424) are formed on the side so as to be connected to the conical space (422).

[0027] The height of the support panel (40) is provided to be smaller than the thickness of the air mat (30), so that the support legs (420) of the support panel (40) are inserted into the air mat (30) and are provided to be lifted about 4 to 8 mm from the upper surface of the concrete slab (SB) or the elastic sheet (20). Accordingly, the air mat (30) becomes elastic like a spring due to the support panel (40) and the air mat (30). When the height of the finishing mortar layer (80) is 40mm and the specific gravity of the mortar per 1㎡ is calculated as 25, the load of the finishing mortar layer (80) is approximately 100kg. When the support leg (420) of the support panel (40) is lifted about 4 to 8mm from the upper surface of the concrete slab (SB) or the elastic sheet (20), the air mat (30) acts as a spring, and as elastic force is applied by the elastic support part (430), the load of the finishing mortar layer (80) can be reduced by 30 to 50%.

[0028] The above support panel (40) is provided with a cylindrical insertion guide (431) protruding from a square base plate (410) located above the support leg (420) with an open bottom so that an elastic support member (430) can be fitted therein, and the upper part of the elastic support member (430) is provided so that the upper part of the coil spring leg (432) is fitted into the cylindrical insertion guide (431) by a press fit, and a support cap (433) can be fitted to the lower part of the coil spring leg (432). At this time, the support cap (433) is provided with a catch (433-3) larger than the diameter of the support cap body (433-1) at the lower part of the support cap body (433-1) which is provided with a plurality of axial elongated holes (433-2), and a plurality of movable holes (433-4) are provided on the inner side of the catch (433-3) so that the outer circumference of the support cap body (431-1) is coupled to the inside of the coil spring leg (432) by a press fit.

[0029] The above elastic support portion (430) may be provided so that the upper part of the synthetic resin cap (434) is fitted into the cylindrical insertion guide (431) by a press fit. At this time, the synthetic resin cap (434) is provided with an impact sound flow hole (434-3) on the outer circumference and lower corner portion of a cap body (434-1) that has a closed lower end and a stepped fitting portion (434-2).

[0030] The above cushioning material (50) is preferably made of any one of EPS (Expanded Polystyrene), EPP (Expanded Polypropylene), EVA (Ethylene Vinyl Acetate), nonwoven fabric, glass wool in the form of glass fiber, or sponge, with a thickness of 20 to 40 mm and a size of 900×1000 mm, 900×1800 mm, 1000×1000 mm, or 1000×2000 mm.

[0031] The above hot water panel (60) is provided with a hot water pipe seating groove (620) between a plurality of guide protrusions (610) arranged horizontally and vertically on the upper part, so that the hot water pipe (70) is easily seated without using a separate fixing pin or clip.

[0032] The thickness of the above finishing mortar layer (80) is provided to be 40 mm or more, and it is preferable to make it 60 mm or more. The finishing mortar (M) is generally made by mixing only cement and sand as a binder, and for flooring, the ratio of cement to sand is preferably about 1:3.

[0033] If a floor finishing material (90) is provided on the upper part of the above finishing mortar layer (80), and a CRC board (cement board) and finishing are provided on the upper part of the hot water panel (60) equipped with the above hot water pipe (70), construction can be carried out using a dry method without using a wet finishing mortar. Effects of the invention

[0035] This invention allows for easy installation by simply attaching a floor impact sound discharge gap securing device, which is composed of a securing retainer part having a foamed sheet on one side and a securing remover part having a foamed sheet on the other side, to the inner side of the side wall between the concrete slab and the side wall.

[0036] In addition, after the finishing mortar layer is provided, the part exposed above the finishing mortar layer can be easily separated and removed.

[0037] In addition, with the part exposed above the finishing mortar layer removed, the effect of being easily separated can be achieved simply by hooking and pulling the upper part of the foam sheet on the other side of the securing remover part using a hook or the like.

[0038] In addition, this allows for the easy construction of a floor impact sound exhaust gap with a spatial form on the side wall between the concrete slab and the side wall.

[0039] In addition, this allows some of the floor impact sound to escape to the outside, preventing it from spreading internally and effectively reducing impact sound.

[0040] In addition, by ensuring that the foam sheet remains on the outer wall of the floor impact sound discharge gap, the effect of further preventing the spread and transmission of impact sound through the side wall or heat loss can be obtained. Brief explanation of the drawing

[0042] FIG. 1 is a longitudinal cross-sectional view illustrating an inter-floor impact sound blocking structure equipped with an inter-floor impact sound discharge gap securing hole according to the present invention. FIG. 2 is a perspective view illustrating a gap securing device for discharging impact sound between floors according to the present invention. FIG. 3 is a perspective view showing the gap securing device for discharging impact sound between floors according to the present invention in a separated manner. FIG. 4 is a cross-sectional view showing the gap securing device for discharging floor impact sound between floors according to the present invention. FIG. 5 is a longitudinal section showing a gap securing device for discharging impact sound between floors according to the present invention. FIG. 6 is a longitudinal cross-sectional view illustrating the state in which the securing remover part is removed and the floor impact sound exhaust gap is constructed in the inter-floor impact sound exhaust gap securing hole according to the present invention. FIG. 7 is a longitudinal cross-sectional view illustrating the cut and separated state of the inter-floor impact sound discharge gap securing hole according to the present invention. FIG. 8 is a perspective view showing an air mat applied to an inter-floor impact sound blocking structure equipped with an inter-floor impact sound discharge gap securing hole according to the present invention. FIG. 9a is a perspective view showing an inter-floor impact sound blocking structure with an inter-floor impact sound discharge gap securing hole according to the present invention, FIG. 9b is a perspective view showing a support panel in an inter-floor impact sound blocking structure with an inter-floor impact sound discharge gap securing hole according to the present invention, and FIG. 9c is a longitudinal cross-sectional view showing a support panel in an inter-floor impact sound blocking structure with an inter-floor impact sound discharge gap securing hole according to the present invention. FIG. 10 is a perspective view showing a support panel in an inter-floor impact sound blocking structure equipped with an inter-floor impact sound discharge gap securing hole according to the present invention. Specific details for implementing the invention

[0043] An embodiment of the invention is described below with reference to the attached drawings.

[0044] FIG. 1 is a longitudinal cross-sectional view illustrating an inter-floor impact sound blocking structure equipped with an inter-floor impact sound discharge gap securing device according to the present invention; FIG. 2 is a perspective view illustrating an inter-floor impact sound discharge gap securing device according to the present invention; FIG. 3 is a perspective view illustrating an inter-floor impact sound discharge gap securing device according to the present invention separated; FIG. 4 is a longitudinal cross-sectional view illustrating an inter-floor impact sound discharge gap securing device according to the present invention separated; FIG. 5 is a longitudinal cross-sectional view illustrating an inter-floor impact sound discharge gap securing device according to the present invention; FIG. 6 is a longitudinal cross-sectional view illustrating a state in which the securing remover part is removed and the floor impact sound discharge gap part is constructed in the inter-floor impact sound discharge gap securing device according to the present invention; and FIG. 7 is a longitudinal cross-sectional view illustrating the cut and separated state of the inter-floor impact sound discharge gap securing device according to the present invention.

[0046] The floor impact sound discharge gap securing device (10) according to the present invention is configured such that a floor impact sound discharge gap section having a spatial shape is easily provided on the inner side of the side wall between the concrete slab and the side wall, and a portion of the floor impact sound is allowed to escape to the outside through the space of the floor impact sound discharge gap section, thereby preventing internal diffusion and reducing impact sound. As shown in FIGS. 1 to 7, the floor impact sound discharge gap section (S) is easily provided between the concrete slab (SB) and the side wall (SW).

[0047] The above discharge gap securing member (10) is provided with a securing retainer part (110) on one side that remains or stays in the internal space of the floor impact sound discharge gap part (S) and a securing remover part (120) on the other side that is separated and removed from the internal space of the floor impact sound discharge gap part (S).

[0048] The above-mentioned retaining portion (110) is provided with a one-sided release portion (112) on one side of a one-sided foamed sheet (111), and a first other-sided release portion (113) on the other side of the one-sided foamed sheet (111).

[0049] The above-mentioned one-sided release liner portion (112) is formed such that a one-sided release liner (112a) is attached to one side of a one-sided foamed sheet (111) by means of an one-sided adhesive layer (112b). The one-sided release liner (112a) is provided with an upper one-sided retainer release liner (112a-1) and a lower one-sided remover release liner (112a-2), and the one-sided adhesive layer (112b) is provided with an upper one-sided retainer adhesive layer (112b-1) and a lower one-sided exposed adhesive layer (112b-2).

[0050] Accordingly, the exposed adhesive layer (112b-2) that is separated from the one-sided remover release liner (112a-2) is attached to the concrete side wall (SW), and at the same time, the one-sided remaining adhesive layer (112b-1) is prevented from being exposed by the one-sided remaining release liner (112a-1), so that when it is separated later, it can be easily separated without interference with the side wall (SW).

[0051] The above first release liner (113) is maintained in a stable attached state until the finishing mortar (M) is poured and the finishing mortar layer (80) is formed, and can be easily separated after the finishing mortar layer (80) hardens.

[0052] To this end, the first release liner portion (113) is provided such that the first release liner (113a) is attached to the other side of the foamed sheet (111) by the first release liner (113b), and the first release liner adhesive layer (113b) is provided with an upper first release liner exposed adhesive layer (113b-1) and a lower first retaining adhesive layer (113b-2).

[0053] The first release liner (113a) is provided to be adhered to the first retaining adhesive layer (113b-2) so that the first exposed adhesive layer (113b-1) is exposed, and the upper side of the foam sheet (121) of the retaining remover part (120) is adhered to the first exposed adhesive layer (113b-1) exposed to the top, thereby allowing the stablely adhered state to be maintained.

[0054] The above securing remover part (120) is provided with a second release paper part (122) on the other side of the other side foam sheet (121), and a sheet (123) is provided on the other side of the second release paper part (122).

[0055] The above second release liner (122) prevents some of the mortar (M) and moisture from entering until the finishing mortar layer (80) is formed by the second release liner (122a) being attached to the other side of the foam sheet (121) by the second adhesive layer (122b), thereby preventing the floor impact sound discharge gap (S) from being filled.

[0056] The second adhesive layer (122b) is provided with an upper second adhesive layer (122b-1) and a lower second adhesive layer (122b-2), and the second release liner (122a) is provided to be adhered to the second adhesive layer (122b-2) so that the second adhesive layer (122b-1) is exposed, and the upper part of the sheet (123) is provided to be adhered to the second adhesive layer (122b-1), thereby allowing for easy separation without interference with the remaining sheet (123-3) of the sheet (123) described later during the cutting and separation process.

[0057] The above sheet (123) is provided with a cut sheet (123-2) below the upper remover sheet (123-1) and a retain sheet (123-3) below the cut sheet (123-2), and the remover sheet (123-1) and the cut sheet (123-2) are provided to be adhered to the second side exposed adhesive layer (122b-1) of the second side release paper portion (122), thereby preventing the position of the retain sheet (123-3) located at the bottom from shifting.

[0058] The above-mentioned cutting sheet (123-2) is provided so that, during the cutting and separation process, the worker can cut by pulling rather than cutting the part exposed above the finishing mortar layer (80) using a knife.

[0059] To this end, the above-mentioned cut sheet (123-2) is provided with a tear line (123-2a) that is repeated in a dotted line shape along the length direction, with a constant upper and lower interval.

[0060] These tear lines (123-2a) are continuous in the longitudinal direction so that the perforation line forms a stitched shape. Normally, the upper and lower parts are maintained in a connected state, with the remover sheet (123-1) and the retainer sheet (123-3) respectively. When the tearing sheet (123-2) is pulled, it tears and separates, exposing the second adhesive layer (122b). Consequently, the worker can use a knife to simultaneously cut and separate the second adhesive layer (122b), the other foamed sheet (121), the first adhesive layer (113b-1), the one foamed sheet (111), the one retainer adhesive layer (112b-1), and the one retainer release liner (112a-1).

[0061] The above-mentioned teal line (123-2a) is provided with a line marking section (123-2b) having a predetermined thickness, so that a worker can pour finishing mortar (M) while looking at it.

[0062] Meanwhile, in this invention, the one-sided retained adhesive layer (112b-1) and one-sided exposed adhesive layer (112b-2) of the one-sided adhesive layer (112b), the first-sided exposed adhesive layer (13b-1) and the first retained adhesive layer (113b-2) of the first-sided adhesive layer (113b), and the second-sided exposed adhesive layer (122b-1) and the second-sided retained adhesive layer (122b-2) of the second-sided adhesive layer (122b) are provided using double-sided tape, but in addition to this form, they can be used as point adhesive layers coated with an adhesive having a predetermined thickness. This is intended to further reduce costs and processes compared to when double-sided tape is used.

[0064] FIG. 8 is a perspective view illustrating an air mat applied to an inter-floor impact sound blocking structure equipped with an inter-floor impact sound discharge gap securing hole according to the present invention; FIG. 9a is a perspective view illustrating an inter-floor impact sound blocking structure equipped with an inter-floor impact sound discharge gap securing hole according to the present invention in a disassembled manner; FIG. 9b is a perspective view illustrating a support panel in an inter-floor impact sound blocking structure equipped with an inter-floor impact sound discharge gap securing hole according to the present invention; FIG. 9c is a longitudinal cross-sectional view illustrating a support panel in an inter-floor impact sound blocking structure equipped with an inter-floor impact sound discharge gap securing hole according to the present invention; and FIG. 10 is a perspective view illustrating a support panel in an inter-floor impact sound blocking structure equipped with an inter-floor impact sound discharge gap securing hole according to the present invention.

[0066] As shown in FIGS. 8 and 10, the inter-floor structure equipped with such inter-floor impact sound discharge gaps is provided on the upper part of the concrete slab (SB) of the building structure. After construction, it is provided to prevent some of the floor impact sound generated by an impact acting from above from being discharged to the outside, thereby preventing diffraction or resonance and reducing the sound, while preventing deformation caused by settlement due to local impact or load, thus extending the lifespan.

[0067] To this end, the above-described inter-floor impact sound blocking structure is provided to include an exhaust gap securing hole (10), an elastic sheet (20), an air mat (30), a support panel (40), a cushioning material (50), a hot water panel (60), a hot water pipe (70), and a finishing mortar layer (80).

[0068] 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).

[0069] The above elastic sheet (20) is provided on the upper surface to cover the concrete slab (SB), and has the effect of removing foreign substances from the bottom of the concrete slab (SB) and flattening the upper surface of the concrete slab (SB), as well as having an elastic effect and an effect of blocking floor impact noise between floors. The thickness of the above elastic sheet (20) is set to about 1 to 5 mm, and 2 mm is most preferable.

[0070] This means that if the thickness of the elastic sheet (20) is 1 mm or less, the elastic effect is minimal, 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.

[0071] The above air mat (30) is provided on the upper part of the elastic sheet (20) and is formed in the shape of a mat with a thickness of 30 to 40 mm, and the yarn (310) is irregularly twisted to form various shapes of air layers (320).

[0072] As shown in FIG. 8, the above air mat (30) is formed by irregularly twisting yarns (310) having a diameter of 0.5 to 1.5 mm formed from a synthetic resin composition to form various air layers (320), thereby providing a spring function with elasticity, and the synthetic resin composition in the form of yarns is preferably POP (Polyolefin Plastomer), TPR (synthetic rubber), PU (Polyurethane), and EVA (Ethylene-Vinyl Acetate copolymer).

[0073] A predetermined elastic force is provided by the twisted yarn (310) in the air mat (30), thereby supporting the support panel (40) described later, and thus sufficient elastic force or elastic support force can be provided to the finishing mortar layer (80) provided on the upper side. This prevents cracks or subsidence from occurring in the finishing mortar layer (80), thereby enabling the effect of extending its lifespan.

[0074] In addition to the yarn (310) twisted in the air mat (30), the inter-floor impact sound generated in the finishing mortar layer (80) moves laterally through the air layer (320) provided in the space between the yarns (310) and is discharged to the outside through the floor impact sound discharge gap (S) described later, thereby reducing the inter-floor impact sound.

[0075] The above air mat (30) is provided with elastic support insertion holes (330) having a predetermined diameter in the horizontal and vertical directions, so that the lower part of the elastic support part (430), which will be described later, is inserted and penetrated, and the lower part of the elastic support part (430) can be seated on the upper surface of the elastic sheet (20). At this time, it is preferable that the elastic support insertion holes (330) be formed by applying heat and melting rather than by using a punch, and 1m 2 It is desirable to have about 16 to 20 holes per. In addition to this form, this air mat (30) can be provided as a bed mattress.

[0076] The support panel (40) is provided to be placed on top of the air mat (30), and a plurality of support legs (420) are integrally formed on the bottom surface of a square base plate (410) with a height of 22 to 36 mm, and the support legs (420) are formed in a conical shape with a pointed bottom end so as to be inserted into and supported by the air mat (30).

[0077] It is preferable that the square base plate (410) of the above support panel (40) be 500×500mm or 1000×1000mm, and the support legs (420) of the support panel (40) are inserted into the air mat (30) on the upper part of the air mat (30) with a thickness of 30~40mm where the air layer (320) is formed and supported by the concrete slab (SB), thereby supporting the load of the cushioning material (50), hot water panel (60), hot water pipe (70), and finishing mortar layer (80) provided on the upper part of the support panel (40).

[0078] The square support plate (410) is provided with a plurality of horizontal support bars (412) and vertical support bars (413) arranged in a grid pattern inside the edge support bars (411), and the support legs (420) are provided at positions where the horizontal support bars (412) and vertical support bars (413) of the square support plate (410) are orthogonal to each other, and the square support plate (410) of the support panel (40) may be provided with reinforcing support bars (414) in a diagonal direction.

[0079] The support leg (420) is formed in a pointed conical shape at its lower end so as to be inserted into and supported by the air mat (30). A pointed closed support portion (421) having a closed shape is formed at the lower end of the support leg (420), a circular opening (422) with an open top is formed at the upper end, a conical space (423) is formed inside so as to be connected to the circular opening (422), and a plurality of vertically elongated grooves (424) are formed on the side so as to be connected to the conical space (422).

[0080] The height of the support panel (40) is provided to be smaller than the thickness of the air mat (30), so that the support legs (420) of the support panel (40) are inserted into the air mat (30) and are provided to be lifted about 4 to 8 mm from the upper surface of the concrete slab (SB) or the elastic sheet (20).

[0081] When the height of the finishing mortar layer (80) is 40mm, the specific gravity of the mortar per 1m² is calculated as 25, so the load of the finishing mortar layer (80) is about 100kg. When the supporting leg (420) of the supporting panel (40) is lifted about 4 to 8mm from the upper surface of the concrete slab (SB) or the elastic sheet (20), the air mat (30) acts as a spring, and as elastic force is applied by the elastic support part (430), the load of the finishing mortar layer (80) is reduced by 30 to 50%.

[0082] The above support panel (40) is provided with a cylindrical insertion guide (431) protruding from a square base plate (410) located above the support leg (420) with an open bottom so that an elastic support part (430) is fitted into it, thereby enabling it to have even more sufficient resistance or elasticity.

[0083] The elastic support member (430) is provided such that the upper part of the coil spring leg (432) is fitted into the cylindrical insertion guide (431) by a press fit, and the lower part of the coil spring leg (432) is fitted with a support cap (433).

[0084] The above support cap (433) is provided with a lower portion of a support cap body (433-1) having a plurality of axial elongated holes (433-2), and a locking projection (433-3) larger than the diameter of the support cap body (433-1) is provided, and a plurality of movable holes (433-4) are provided on the inner side of the locking projection (433-3), and it is preferable that the outer circumference of the support cap body (431-1) is coupled to the inside of the coil spring leg (432) by a press fit.

[0085] Although the above elastic support part (430) is provided with a coil spring leg (432), in addition to this form, the upper part of a synthetic resin cap (434) having a predetermined elastic force can be provided to be fitted into the cylindrical insertion guide (431) by a press fit. At this time, it is preferable that the synthetic resin cap (434) has an impact sound flow hole (434-3) provided on the outer circumference and lower corner portion of a cap body (434-1) with a closed bottom having a stepped fitting part (434-2).

[0086] The above cushioning material (50) is provided as any one of EPS (Expanded Polystyrene), EPP (Expanded Polypropylene), and EVA (Ethylene Vinyl Acetate), and the cushioning material is provided as any one of EPS (Expanded Polystyrene), EPP (Expanded Polypropylene), EVA (Ethylene Vinyl Acetate), nonwoven fabric, glass wool in the form of glass fiber, or sponge.

[0087] The above cushioning material (50) 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 (50) and to finish the joints with bonding tape, etc.

[0088] The above hot water panel (60) is provided with a hot water pipe seating groove (620) between a plurality of guide protrusions (610) arranged in the horizontal and vertical directions on the upper part, so that the hot water pipe (70) can be easily seated without using a separate fixing pin or clip.

[0089] The above finishing mortar layer (80) is formed by pouring and hardening the finishing mortar (M) on top of the hot water panel (60) on which the hot water pipe (70) is placed. It is preferable that the thickness be 40 mm or more, and more preferable that it be 60 mm or more. At this time, the finishing mortar (M) forming the above finishing mortar layer (80) is generally made by mixing only cement and sand as a binder, and for floor use, a cement-to-sand ratio of about 1:3 is preferable.

[0090] It is preferable to provide a floor finishing material (90) on the upper surface of the above finishing mortar layer (80), and such floor finishing material (80) refers to a material (expanded vinyl flooring, wooden flooring, etc.) that is finally finished on the upper surface of the finishing mortar layer (80). Explanation of the symbols

[0092] 10: Discharge gap securing port 110: Securing retaining part 111: One-sided foam sheet 112: One-sided release paper 112a: Single-sided release liner 112a-1: Single-sided remaining release liner 112a-2: One-sided remover release liner 112b: One-sided adhesive layer 112b-1: One-sided retained adhesive layer 112b-2: One-sided exposed adhesive layer 113: First release liner on the other side 113a: First release liner on the other side 113b: First adhesive layer on the other side 113b-1: First exposed adhesive layer on the other side 113b-2: First retaining adhesive layer 120: Secure remover part 121: Other side foam sheet 122: Second other side release liner 122a: Second release liner 122b: Second adhesive layer 122b-1: Second side exposed adhesive layer 122b-2: Second side retaining adhesive layer 123: Sheet 123-1: Remover Sheet 123-2: Tear-off Sheet 123-3: Remaining Sheet

Claims

Claim 1 In an inter-floor floor impact sound discharge gap securing device (10) having a floor impact sound discharge gap section (S) provided between a concrete slab (SB) and a side wall surface (SW), the discharge gap securing device (10) is provided with a securing retainer section (110) on one side and a securing remover section (120) on the other side, wherein the securing retainer section (110) is provided with a one-side release paper section (112) on one side of a one-side foam sheet (111) and a first other-side release paper section (113) on the other side of the one-side foam sheet (111), and the securing remover section (120) is provided with a second other-side release paper section (122) on the other side of a other-side foam sheet (121), wherein the second other-side release paper section (122) is formed by a second other-side release paper (122a) and a second other-side adhesive layer (122b). A gap securing device for discharging impact sound between floors, characterized in that it is attached to and provided on the other side of the other side foam sheet (121), and a sheet (123) is provided on the other side of the second release paper portion (122), wherein the sheet (123) has a cut sheet (123-2) provided below the upper remover sheet (123-1), and a retain sheet (123-3) provided below the cut sheet (123-2), wherein the cut sheet (123-2) has a tear line (123-2a) formed by a stitching-shaped cut line that repeats in a dotted line shape along the length direction, provided at regular intervals above and below, and a line marking portion (123-2b) having a predetermined thickness is provided in the middle of the tear line (123-2a) provided on the cut sheet (123-2). Claim 2 In claim 1, the one-sided release paper portion (112) of the securing retainer portion (110) is characterized in that the one-sided release paper (112a) is attached to one side of the one-sided foam sheet (111) by the one-sided adhesive layer (112b), wherein the one-sided release paper (112a) is provided with an upper one-sided retainer release paper (112a-1) and a lower one-sided remover release paper (112a-2), and the one-sided adhesive layer (112b) is provided with an upper one-sided retainer adhesive layer (112b-1) and a lower one-sided exposed adhesive layer (112b-2). Claim 3 In claim 1, the first release liner portion (113) is characterized in that the first release liner (113a) is attached to the other side of the foamed sheet (111) by the first release liner (113b), the first release liner (113a) is provided with an upper first release liner exposed adhesive layer (113b-1) and a lower first retain adhesive layer (113b-2), the first release liner (113a) is provided to be attached to the first retain adhesive layer (113b-2) so that the first release liner (113b-1) is exposed, and the upper side of the foamed sheet (121) of the securing remover portion (120) is attached to the first release liner exposed adhesive layer (113b-1). Claim 4 delete Claim 5 In claim 1, the second side adhesive layer (122b) is provided with an upper second side exposed adhesive layer (122b-1) and a lower second side retaining adhesive layer (122b-2), the second side release liner (122a) is provided to be adhered to the second side retaining adhesive layer (122b-2) so that the second side exposed adhesive layer (122b-1) is exposed, and the upper part of the sheet (123) is provided to be adhered to the second side exposed adhesive layer (122b-1), characterized by a gap securing device for discharging impact sound between floors. Claim 6 delete Claim 7 A gap securing device for discharging floor impact sound between layers, characterized in that, in claim 1, the remover sheet (123-1) and the cut sheet (123-2) are provided to be adhered to the second side exposed adhesive layer (122b-1) of the second side release paper portion (122).

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