Construction-type interfloor noise prevention mat using air tube

Abstract

Disclosed in an embodiment of the present invention is a construction-type interfloor noise prevention mat using an air tube, the mat being capable of minimizing the transmission of a heavy impact sound. The disclosed interfloor noise prevention mat comprises: a mat body having a mat structure of a predetermined unit standard, having a flat upper surface, having connection flanges and connection recesses formed on the side surfaces thereof in order to be coupled to an adjacent unit mat, and having an accommodation recess formed in the lower surface thereof; and an air tube of a hollow structure which is composed of a plurality of air cells so as to be coupled to the accommodation recess of the mat body, and which has air flow paths formed between the air cells. According to an embodiment of the present invention, the air tube having an excellent cushioning effect is inserted into the lower portion of the mat body such that, even if the mat body made of soft foam is compressed to become hard due to weighted impact, an air layer of the air tube efficiently absorbs vibration from the upper portion so as to prevent the vibration from being transmitted to the floor, and thus interfloor noise can be reduced.

Description

Interfloor noise prevention mat using air tubes

[0001] The present invention relates to a construction-type inter-floor noise prevention mat, and more particularly, to a construction-type inter-floor noise prevention mat using an air tube capable of minimizing the transmission of weight impact noise.

[0002] Typically, buildings with two or more stories share a common structural element called an interfloor slab, which allows various noises generated on upper floors to be transmitted to lower floors through the interfloor slab. This is particularly true in apartment complexes where floors are shared with neighbors. Noise and vibration from walking, children running, falling objects, and other moving furniture can be transmitted to neighbors, potentially causing unpleasant interactions among neighbors.

[0003] Inter-floor noise in apartment buildings like this can be divided into 'airborne noise' and 'impact noise', and impact noise on the floor in particular is divided into light impact noise mainly in the mid-frequency band caused by things like falling and chair dragging, and heavy impact noise mainly in the low-frequency band caused by things like walking or children running around. In general, heavy impact noise is a sound generated by heavy objects that lasts a long time and has a low frequency component, and light impact noise is a sound generated by light objects that has a high frequency component.

[0004] The Korean Intellectual Property Office has disclosed a patent publication number 10-2515950 entitled “Buffering mat for building floors to reduce inter-floor noise” (hereinafter referred to as “Patent Document 1”). The buffering mat of Patent Document 1 is configured such that a buffering support means formed of a packing cap and a buffering packing is assembled and installed in an assembly groove formed at the bottom of a mat body in a plate shape, and the inside of the buffering packing is formed as a hollow portion, and an upper cushioning portion is formed above the insertion portion inserted into the packing cap, and a lower cushioning support portion supported on the building floor is formed below, so that when constructing the floor surface of a building, not only the mat body but also the upper cushioning portion and the lower cushioning support portion of the buffering packing perform multi-stage buffering operations.

[0005] In addition, an 'interfloor noise reduction mat' (hereinafter referred to as 'patent document 2') is disclosed in the Korean Intellectual Property Office Patent Gazette under registration number 10-2623316. The mat of patent document 2 has an upper sheet layer constituting the mat body formed in the form of a sheet or film, a lower foam layer constituting the mat body formed by foaming, an assembly protrusion is formed on one end of the mat body, an assembly groove is formed on the other end of the mat body opposite the assembly protrusion so that they are mutually assembled, and a plurality of lattice-shaped air flow grooves are formed on the lower surface of the lower foam layer.

[0006] The existing commercially available construction-type inter-floor noise prevention mats made of thermoplastic polyurethane (TPU) film and polyurethane (PU) foam are somewhat effective against light impact sounds, but have the problem that they are less effective against heavy impact sounds. That is, the conventional construction-type inter-floor noise prevention mats are made with PU soft foam to absorb vibrations, but even though it is soft soft foam, it is installed in close contact with the floor surface, and when the weight of an adult or child's heel is applied, the soft foam is compressed and hardened, so the vibration is inevitably transmitted to the floor surface as it is.

[0007] The present invention has been proposed to solve the above problems, and the problem to be solved by the present invention is to provide a construction-type inter-floor noise prevention mat that can minimize the transmission of heavy impact noise by changing the shape of polyurethane (PU) foam in the construction-type inter-floor noise prevention mat and installing an air tube that is excellent in vibration absorption, thereby maximally reducing vibration transmitted to the floor surface.

[0008] An embodiment of the present invention discloses a construction-type inter-floor noise prevention mat using an air tube capable of minimizing the transmission of heavy impact noise.

[0009] The disclosed inter-floor noise prevention mat has a mat structure of a predetermined unit size, and includes a mat body having a flat upper surface, a connecting wing and a connecting groove formed on the side for joining with an adjacent unit mat, a receiving groove formed on the lower surface, and a hollow air tube formed with a plurality of air cells and joined to the receiving groove of the mat body, and an air circulation path formed between the air cells.

[0010] The above construction-type interlayer noise prevention mat may further include a TPU film layer attached to the upper surface of the mat body.

[0011] In addition, the above air tube is manufactured by cutting a fabric with an inner layer of TPU or PVC film and an outer layer of fabric or a fabric without a fabric but of TPU or PVC film into a predetermined shape, overlapping the fabric with an air layer in between, forming a plurality of air cells through ultrasonic welding, injecting air into the air cells, and then sealing them.

[0012] In addition, the air tube may be formed with an inflating button on one edge to replenish air to the air cells by stepping on it, an inflating cylinder to distribute the air injected through the inflating button to other air cells, and an automatic air pressure maintenance cylinder to automatically release air when air pressure greater than a reference value is generated in the air cell to maintain the pressure at a constant level may be formed on the other edge.

[0013] In addition, the air tube and the mat body may be combined into any one of an assembled type in which the air tube is assembled under a mat body made of PE, PVC, or PU foam, an integral type in which one side of the air tube is bonded to the mat body made of PE, PVC, or PU foam, a sealed type in which the air tube is positioned in the middle of a mat body made of PE, PVC, or PU foam so that the air tube is sealed, and a composite type in which the assembled type and the sealed type are mixed and have two air tubes.

[0014] According to an embodiment of the present invention, an air tube having an excellent cushioning effect is inserted into the lower part of the mat body, so that even when the soft foam mat body is compressed and hardened by weight impact, the air layer of the air tube efficiently absorbs upper vibrations, thereby preventing the vibrations from being transmitted to the floor surface, thereby reducing inter-floor noise.

[0015] In addition, in the past, it was necessary to add an air passage shape to the bottom surface of the mat to prevent moisture and mold, but according to the embodiment of the present invention, when the air tube is positioned on the bottom surface, an air passage is formed between small air cells by a high-frequency fusion part, so there is an advantage that the bottom surface can breathe without having to create a separate air passage.

[0016] In addition, according to an embodiment of the present invention, the mat body and the air tube can be manufactured in various forms, such as an assembled type, an integral type, a sealed type, a composite tube type, etc., to suit the construction site, and in the case of an assembled type, various rigid boards can be selectively positioned between the PU foam and the air tube to provide more stable characteristics.

[0017] In addition, according to an embodiment of the present invention, it is possible to supplement the insufficient air in the air cells by the inflating button and the inflating cylinder, thereby maintaining a uniform cushioning effect at all times, and when excessive air pressure is applied to the air cells, the automatic air pressure maintenance cylinder relieves the pressure, thereby preventing the air cells from being damaged, which has the advantage of being possible.

[0018] In addition, the inter-floor noise prevention mat according to an embodiment of the present invention can be directly applied to old apartments with thin inter-floor cement slabs, thereby improving the living environment of old apartments and reducing construction costs due to easy construction.

[0019] Figure 1 is an exploded perspective view of an inter-floor noise prevention mat according to the first embodiment of the present invention;

[0020] Figure 2 is a side view of an inter-floor noise prevention mat according to the first embodiment of the present invention.

[0021] Figure 3 is a plan view and a side view of an air tube according to the first embodiment of the present invention.

[0022] Figure 4 is a cross-sectional view of an air tube according to the first embodiment of the present invention;

[0023] Figure 5 is a flowchart illustrating an air tube manufacturing procedure according to the first embodiment of the present invention.

[0024] Figures 6 and 7 are schematic diagrams showing the air tube manufacturing process according to the first embodiment of the present invention.

[0025] Figure 8 is a plan view of an inter-floor noise prevention mat according to the second embodiment of the present invention.

[0026] Figure 9 is a bottom view of an inter-floor noise prevention mat according to a second embodiment of the present invention.

[0027] Figure 10 is a side view and a cross-sectional side view of an inter-floor noise prevention mat according to a second embodiment of the present invention.

[0028] Fig. 11 is a plan view of an air tube according to a second embodiment of the present invention;

[0029] Figure 12 is a bottom view and a side cross-sectional view of an air tube according to a second embodiment of the present invention.

[0030] Figure 13 is a schematic diagram of an automatic air pressure maintenance cylinder used in an embodiment of the present invention.

[0031] Figure 14 is a drawing showing various examples of combinations of the mat body and the air tube in the inter-floor noise prevention mat according to the present invention.

[0032] Figure 15 is a plan view of an inter-floor noise prevention mat according to a third embodiment of the present invention.

[0033] Fig. 16 is a bottom view of an inter-floor noise prevention mat according to a third embodiment of the present invention.

[0034] Figure 17 is a side cross-sectional view of an inter-floor noise prevention mat according to a third embodiment of the present invention.

[0035] Fig. 18 is a plan view of an air tube according to a third embodiment of the present invention.

[0036] Figure 19 is a bottom view and a side cross-sectional view of an air tube according to a third embodiment of the present invention.

[0037] Figure 20 is a performance comparison graph of an inter-floor noise prevention mat according to an embodiment of the present invention.

[0038] The advantages and features of the present invention and the method for achieving them will become clear with reference to the embodiments described in detail below together with the attached drawings.

[0039] However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and these embodiments are provided only to ensure that the disclosure of the present invention is complete and to fully inform a person having ordinary skill in the art to which the present invention pertains of the scope of the invention, and the present invention is defined only by the scope of the claims.

[0040] The specific details for implementing the present invention will be described in detail with reference to the attached drawings. Regardless of the drawings, the same reference numerals refer to the same components, and "and / or" includes each and every combination of one or more of the mentioned items.

[0041] Although the terms first, second, etc. are used to describe various components, these components are not limited by these terms. These terms are used only to distinguish one component from another.

[0042] Therefore, it goes without saying that the first component mentioned below may also be the second component within the technical concept of the present invention.

[0043] The terminology used herein is for the purpose of describing embodiments and is not intended to limit the present invention. In this specification, singular forms also include plural forms, unless specifically stated otherwise. As used herein, the terms "comprises" and / or "comprising" do not exclude the presence or addition of one or more other components in addition to the components mentioned.

[0044] Unless otherwise defined, all terms (including technical and scientific terms) used herein may be used in their common sense to those of ordinary skill in the art to which the present invention pertains. Furthermore, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless explicitly and specifically defined otherwise.

[0045] Spatially relative terms such as "below," "beneath," "lower," "above," and "upper" can be used to easily describe the relationship between one component and other components as depicted in the drawings. Spatially relative terms should be understood to include different orientations of the components during use or operation in addition to the orientations depicted in the drawings. For example, if a component depicted in the drawings were flipped over, a component described as "below" or "beneath" another component could end up "above" the other component. Thus, the exemplary term "below" can include both the above and below orientations. Components can also be oriented in other directions, and thus spatially relative terms can be interpreted based on their orientation.

[0046] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0047] First, the inter-floor noise prevention mat according to an embodiment of the present invention uses an air tube that has an excellent cushioning effect even against heavy impact noise, and such an air tube can be manufactured in various shapes. For the sake of convenience of understanding, the embodiments of the present invention will be described by dividing them into a first embodiment that uses an air tube in which the air cells are completely sealed, a second embodiment that uses an air tube in which the air cells are connected through an air passage so that air can be replenished through an inflating button and an automatic air pressure maintenance cylinder can prevent damage to the air cells due to excessive air pressure, and a third embodiment that uses an air tube from which some of the air cushion is removed in order to support a heavy object placed on the floor while being able to replenished through an inflating button and preventing damage to the air cells through an automatic air pressure maintenance cylinder. In the first to third embodiments, the structure of the mat body, excluding the air tube, can all be implemented in the same shape.

[0048] <Example 1>

[0049] FIG. 1 is an exploded perspective view of an inter-floor noise prevention mat according to a first embodiment of the present invention, FIG. 2 is a side view of an inter-floor noise prevention mat according to a first embodiment of the present invention, FIG. 3 is a plan view and a side view of an air tube according to a first embodiment of the present invention, and FIG. 4 is a cross-sectional view of an air tube according to a first embodiment of the present invention.

[0050] The inter-floor noise prevention mat (100) according to the first embodiment of the present invention, as shown in FIGS. 1 and 2, may be composed of a mat body (110) made of a predetermined foam material, which has a mat structure of a predetermined unit size, a flat upper surface, and a connecting wing (114) and a connecting groove (116) formed on the side for joining with an adjacent mat during construction, and a receiving groove (112) formed on the lower surface, an air tube (120) having a hollow structure that is divided into a plurality of air cells (126) by high-frequency fusion and joined to the receiving groove (112) of the mat body (110), and allows the floor surface to breathe by an air circulation path (127) formed between the air cells by high-frequency fusion, and a TPU film layer (130) attached to the upper surface of the mat body (110).

[0051] Referring to FIGS. 1 and 2, the mat body (110) can be manufactured by foaming PE, PVC, or PU foam into a mold, and has a flat upper surface and a receiving groove (112) formed on the lower surface for mounting an air tube (120). In addition, small, grid-shaped grooves (112a) for receiving air cells (126) can be formed inside the receiving groove (112), and connecting wings (114) and connecting grooves (116) for fastening to adjacent mats during construction can be formed on each of the four sides. The structure of the mat body (110) can be the same as the structure of the mat body (210) of the second embodiment, which will be described later.

[0052] Accordingly, the inter-floor noise prevention mat according to an embodiment of the present invention can be assembled into a single, stable sheet by constructing unit mats of a certain size in four directions by interlocking them with each other through connecting wings and connecting grooves. To this end, the connecting wings (114) and connecting grooves (116) of each mat are arranged in an alternating manner so that the connecting wings of one mat can be fastened to the connecting grooves of the other mat.

[0053] In addition, the air tube (120) according to the first embodiment of the present invention is manufactured by cutting a fabric having an inner layer of TPU or PVC film (121) and an outer layer of fabric (122) or a fabric without a fabric of TPU or PVC film (121) into a predetermined shape as shown in FIGS. 3 and 4, overlapping the fabrics with an air layer in between, forming a plurality of air cells (126) through ultrasonic welding, injecting air into the air cells (126) and sealing them, and an air flow path (127) can be formed in the ultrasonic welding portion (124) between the air cells. FIG. 3 (A) is a plan view of the air tube according to the first embodiment, and (B) is a side view of the air tube according to the first embodiment.

[0054] Also, (A) of FIG. 4 is a side cross-sectional view of an air tube according to the first embodiment, (B) is a schematic cross-sectional view enlarged and showing the air cell (k) illustrated in (A), showing an example in which the air cell (k) has four layers in total, two upper layers and two lower layers. (C) is a schematic cross-sectional view enlarged and showing the air cell (k) illustrated in (A), showing an example in which the air cell (k) has three layers in total, one upper layer and two lower layers, and (D) is a schematic cross-sectional view enlarged and showing the air cell (k) illustrated in (A), showing an example in which the air cell (k) has two layers in total, one upper layer and one lower layer.

[0055] Referring to FIG. 4, the air tube (120) used in the first embodiment of the present invention can be implemented in any one of the following forms: a four-layer structure in which the inner layer is made of a TPU or PVC film (121) and the outer layer is made of a fabric (122), with air filled between the upper and lower structures; a three-layer structure in which the upper layer is made of a TPU or PVC film (121) and the lower layer is made of a TPU or PVC film (121) and a fabric (122); or a two-layer structure in which both the upper and lower layers are made of a TPU or PVC film (121) without using a fabric. In this case, the fabric (122) can be made of an inexpensive fabric such as nylon to reduce costs, and since TPU or PE may generate noise or cause air cells to burst due to friction with the floor, the fabric is coated to prevent this.

[0056] The air tube (120) of the first embodiment can be manufactured in the following manner.

[0057] FIG. 5 is a flowchart illustrating an air tube manufacturing procedure according to a first embodiment of the present invention, and FIGS. 6 and 7 are schematic diagrams illustrating an air tube manufacturing process according to the first embodiment of the present invention.

[0058] Referring to FIGS. 5 to 7, a TPU-coated fabric sheet is cut into a square sheet having an air inlet (123) on one side as shown in FIG. 6 (A), and two sheets are overlapped (S1). In the embodiment of the present invention, the air tube (120) may be implemented in any one of two layers (2 Layer) to four layers (4 Layer) as described above.

[0059] Next, the overlapping TPU-coated fabric sheets are high-frequency fused as shown in (B) of Fig. 6, and the edge portion except for the air inlet (123) is sealed by the high-frequency fusion section (124) to form a plurality of air cells (126), and each air cell (126) is formed so that air can be injected through an air passage (125) (S2).

[0060] Next, air is injected through the air inlet (123) to fill the entire air cell (126) with air as shown in (C) of Fig. 6 (S3). At this time, each air cell (126) receives air from an air cell adjacent to the air inlet (123) through an air passage (125), thereby filling the entire air cell (126) with air.

[0061] When air injection into the air cells (126) is completed, only the air injection port (123) and the air passage (125) section are re-fused through secondary high-frequency welding as shown in (D) of Fig. 7 to completely seal the air cells (126) (S4).

[0062] And, as shown in (E) of Fig. 7, when the air inlet (123) is removed, an air tube (20) having air cells (126) and an air distribution path (127) is completed (S5).

[0063] <Example 2>

[0064] FIG. 8 is a plan view of an interfloor noise prevention mat according to a second embodiment of the present invention, FIG. 9 is a bottom view of an interfloor noise prevention mat according to a second embodiment of the present invention, FIG. 10 is a side view and a side cross-sectional view of an interfloor noise prevention mat according to a second embodiment of the present invention, FIG. 11 is a plan view of an air tube according to a second embodiment of the present invention, FIG. 12 is a bottom view and a side cross-sectional view of an air tube according to a second embodiment of the present invention, and FIG. 13 is a schematic diagram of an automatic air pressure maintenance cylinder used in an embodiment of the present invention.

[0065] The inter-floor noise prevention mat (200) according to the second embodiment of the present invention, as illustrated in FIGS. 8 to 13, may be composed of a mat body (210) made of a predetermined foam material, which has a flat upper surface and a predetermined unit size mat structure, has connecting wings (214) and connecting grooves (214) for joining with adjacent mats when expanded laterally, and has a receiving groove (212) formed on the lower surface, an air tube (220) having a hollow structure that is divided into a plurality of air cells (222) by high-frequency fusion and joined to the receiving grooves (212) of the mat body (210), and allows the floor surface to breathe by means of an air circulation path (228) between the air cells formed by high-frequency fusion, and a TPU film layer (230) attached to the upper surface of the mat body (210).

[0066] Referring to FIGS. 8 to 13, the mat body (210) can be manufactured by foaming PE, PVC, or PU foam into a mold, and has a flat upper surface and a receiving groove (212) formed on the lower surface for mounting an air tube (220). In addition, connecting wings (214) and connecting grooves (216) can be formed on each of the four sides of the mat body (210) for fastening to adjacent mats during construction. Therefore, the inter-floor noise prevention mat (200) according to the embodiment of the present invention can be constructed from four directions in a manner in which unit mats of a certain size are mutually fitted and connected by the connecting wings (214) and connecting grooves (216), and assembled into a single, stable sheet as a whole.

[0067] In addition, the air tube (220) according to the second embodiment of the present invention has a plurality of air cells (222) formed by ultrasonically fusing a fabric coated with a TPU film or a TPU or PVC film without a fabric, and an inflating button (224) for replenishing air to the air cells by stepping on it with a foot and an inflating cylinder (225) for distributing the air injected through the inflating button (224) to other air cells are formed at one edge, and an automatic air pressure maintenance cylinder (226) for automatically releasing air when an air pressure greater than a reference value is generated to maintain the pressure constant may be formed at the other edge, and an air flow path (228) may be formed at the ultrasonic fusing portion between the air cells.

[0068] The air tube (120) of the second embodiment can be manufactured in a manner that maintains an air passage for injecting air into each air cell by applying the manufacturing procedure of the air tube of the first embodiment described above. In addition, the inflating button (224) has an elastic sponge inserted therein and is connected to the inflating cylinder (225) by a one-way air passage so that air can flow from the inflating button (224) to the inflating cylinder (225), but air cannot flow in the reverse direction.

[0069] Therefore, when the inflating button (224) is stepped on to replenish air in the air cell (222), the inflating button (224) is compressed flat and the air in the inflating button (224) is injected into the inflating cylinder (225), and when the foot is removed, the air passage between the inflating cylinder (225) and the inflating button (224) is blocked and the inflating button (224) is restored to its original shape by the elasticity of the sponge to suck in outside air. To this end, the inflating button (224) is designed so that outside air can only flow in through the one-way air passage and cannot flow in the reverse direction.

[0070] In addition, in the air tube (220) according to the second embodiment of the present invention, when a high load due to a weight impact such as a heel of an adult or a child is transferred to the air cell (222), a strong air pressure is generated inside the air cell (222), which may cause the air cell (222) to burst or tear. Therefore, to prevent this, an automatic air pressure maintenance cylinder (226) is formed on one edge to automatically release air when an air pressure greater than a reference value is generated in the air cell (222) to maintain the pressure at a constant level.

[0071] This automatic air pressure maintenance cylinder (226) may be composed of a sponge (226-1), an elastic spring (226-3) that provides elasticity corresponding to a reference value, and a plate (226-2) that blocks an air outlet (226-4) by the elasticity of the elastic spring (226-3) and then opens the air outlet (226-4) to release air when air pressure greater than the reference value is generated, as illustrated in FIG. 13.

[0072] FIG. 14 is a drawing showing various examples of combinations of a mat body (110) and an air tube (120) in an inter-floor noise prevention mat according to the present invention, where (A) shows an assembled type, (B) shows an assembled type with sheet, (C) shows an integrated type, (D) shows a sealed type, and (E) shows a mixed type of a sealed type and an assembled type.

[0073] Referring to FIG. 14, the structure of the inter-floor noise reduction mat using an air tube according to an embodiment of the present invention is not limited to one, and can be made into various structures such as an assembled type, an integral type, a sealed type, and a composite tube type.

[0074] (A) of Fig. 14 is an example of an assembled air tube interlayer noise reduction mat, which has a structure in which an air tube (120) is assembled under a mat body (110) made of PE, PVC or PU foam, and a TPU film (130) is attached on top of the mat body.

[0075] (B) of Fig. 14 is a modified example of an assembled air tube interlayer noise reduction mat. Since the small air cells (126) inside the air tube (120) are filled with air, there is no great difficulty in keeping the center even when a person stands on the mat. However, a more stable structure is manufactured by positioning various rigid sheets (140) between the mat body (110) made of PU foam and the air tube (120).

[0076] (C) of Fig. 14 is an example of an integrated air tube interlayer noise reduction mat, which is structured such that when manufacturing a mat body (110) with PU foam, an air tube (120) is positioned within a mold so that one side of the air tube (120) is bonded to the mat body (110) made of PU foam.

[0077] Fig. 14(D) is an example of a sealed air tube interlayer noise reduction mat, in which the mat body (110) is manufactured using PU foam, and an air tube (120) is positioned in the middle of the PU foam, resulting in a completely sealed structure. In this case, it is desirable to form an air circulation path (127) on the bottom surface.

[0078] Figure 14 (E) is an example of a mixed-type air tube interlayer noise reduction mat, which is a structure that mixes an assembled type and a sealed type, and has two air tubes (120-1, 120-2).

[0079] In this way, according to an embodiment of the present invention, an inter-floor noise prevention mat can be prepared by combining an air tube (120) and a mat body (110) in various forms, and then an appropriate structure can be selected and constructed according to the situation at the construction site.

[0080] <Example 3>

[0081] FIG. 15 is a plan view of an interfloor noise prevention mat according to a third embodiment of the present invention, FIG. 16 is a bottom view of an interfloor noise prevention mat according to a third embodiment of the present invention, FIG. 17 is a side cross-sectional view of an interfloor noise prevention mat according to a third embodiment of the present invention, FIG. 18 is a plan view of an air tube according to a third embodiment of the present invention, and FIG. 19 is a bottom view and a side view of an air tube according to a third embodiment of the present invention.

[0082] A third embodiment of the present invention removes a part (320q) of the air tube from an inter-floor noise prevention mat (320) and fills the removed part (320q) with a mat body (310) made of PU foam material to enable support of heavy objects such as a desk or wardrobe.

[0083] The inter-floor noise prevention mat (300) according to the third embodiment of the present invention, as illustrated in FIGS. 15 to 19, may be composed of a mat body (310) made of a predetermined foam material, which has a flat upper surface and a predetermined unit size mat structure, has connecting wings (314) and connecting grooves (316) formed therein for joining with adjacent mats when expanded laterally, and has a receiving groove (312) formed therein on the lower surface, an air tube (320) having a hollow structure that is divided into a plurality of air cells (323) by high-frequency fusion and joined to the receiving grooves (312) of the mat body (310), and allows the floor surface to breathe by means of an air circulation path (328) formed between the air cells by high-frequency fusion, and a TPU film layer (330) attached to the upper surface of the mat body (310).

[0084] Referring to FIGS. 15 to 19, the mat body (310) can be manufactured by foaming PE, PVC, or PU foam into a mold, and has a flat upper surface and a receiving groove (312) formed on the lower surface for mounting an air tube (320). At this time, the shape of the receiving groove is such that when a square is divided into four equal parts, one side is removed so that only 3 / 4 of the part can be inserted. The 1 / 4 part (320q) without the air tube is filled with the mat body (310) which is harder than the air cushion so that it can support heavy objects such as a desk or wardrobe.

[0085] In addition, the four sides of the mat body (310) may be formed with connecting wings (314) and connecting grooves (316) for fastening to adjacent mats during construction. Therefore, the inter-floor noise prevention mat (300) according to the embodiment of the present invention can be constructed in four directions in a manner in which unit mats of a certain size are mutually fitted and connected by the connecting wings (314) and connecting grooves (316), thereby assembling it into a single, stable sheet as a whole.

[0086] In addition, the air tube (320) according to the third embodiment of the present invention has a plurality of air cells (322) formed by ultrasonically fusing a TPU film-coated fabric or a TPU or PVC film without a fabric, and an inflating button (324) for replenishing air to the air cells by stepping on it with a foot and an inflating cylinder (325) for distributing the air injected through the inflating button (324) to other air cells are formed at one edge, and an automatic air pressure maintenance cylinder (326) for automatically releasing air when air pressure greater than a reference value is generated to maintain the pressure constant may be formed at the other edge, and an air flow path (328) may be formed at the ultrasonic fusing portion between the air cells.

[0087] In addition, the air tube (320) according to the third embodiment of the present invention is formed in a form in which, like the insertion groove, when a square is divided into four equal parts, one side (320q) is removed so that only 3 / 4 of the square can be inserted.

[0088] The air tube (320) of the third embodiment can be manufactured using the same method as the manufacturing procedure of the air tube (220) of the second embodiment described above, but by changing the formation of the cut sheet when cutting the TPU coated fabric or TPU or TE film fabric. In addition, the inflating button (324) has an elastic sponge inserted therein and is connected to the inflating cylinder (325) by a one-way air passage so that air can flow from the inflating button (324) to the inflating cylinder (325), but air cannot flow in the reverse direction.

[0089] Therefore, when the inflating button (324) is stepped on to replenish air in the air cell, the inflating button (324) is compressed flat and the air in the inflating button (324) is injected into the inflating cylinder (325), and when the foot is removed, the air passage between the inflating cylinder (325) and the inflating button (324) is blocked and the inflating button (324) is restored to its original shape by the elasticity of the sponge, thereby sucking in outside air. To this end, the inflating button (324) is also designed so that outside air can only flow in through the one-way air passage and cannot flow in the reverse direction.

[0090] In addition, in the air tube (320) according to the third embodiment of the present invention, when a high load due to a weight impact such as a heel of an adult or a child is transmitted to the air cell (322), a strong air pressure is generated inside the air cell (322), which may cause the air cell (322) to burst or tear. Therefore, to prevent this, an automatic air pressure maintenance cylinder (326) is formed on one edge to automatically release air when an air pressure greater than a reference value is generated in the air cell (322) to maintain the pressure at a constant level.

[0091] The inter-floor noise prevention mat (300) of the third embodiment is identical to the second embodiment except that the shape of the air tube (320) and the insertion groove (312) into which the air tube (320) is inserted is such that when a square is divided into four equal parts, one-fourth side (320q) is removed and only three-fourths of the shape can be inserted, so further description thereof will be omitted.

[0092] Fig. 20 is a performance comparison graph of an inter-floor noise prevention mat according to an embodiment of the present invention, in which the vertical axis (Y-axis) represents the noise level (unit: dB(A)), and the horizontal axis (X-axis) represents the number of tests.

[0093] When comparing a prototype of an inter-floor noise prevention mat using an air tube according to an embodiment of the present invention with a product of a third party, it was confirmed that the inter-floor noise prevention mat according to an embodiment of the present invention was superior to the product of a third party in terms of inter-floor noise suppression characteristics, as shown in the graph of Fig. 20.

[0094] Referring to Fig. 20, the test method was prepared by installing mats of the same size, Company A mat, Company B mat, Company C mat, and the mat of the present invention, in an apartment with an interfloor cement thickness of 310 mm before the test, and then positioning a noise meter 125 cm apart from the living room floor of the lower floor to the microphone.

[0095] And before the test started, the background noise on the lower floor was measured for 30 seconds to check the average dB(A), and then the landing place of a child weighing 17.5 kg on the upper floor was set at the same position as the noise meter on the lower floor, and the noise on the lower floor was measured at the same time as the child stood on a 27 cm high chair on the upper floor, jumped about 20 cm up, and landed on the floor.

[0096] According to the test result graph, the noise was the loudest in the living room floor condition before the installation of the inter-floor noise prevention mat, and when the inter-floor noise prevention mat was installed, the noise was reduced overall, confirming the noise prevention effect. In particular, it was confirmed that the inter-floor noise prevention mat using the air tube according to the embodiment of the present invention had the greatest noise reduction effect.

[0097]

[0098] Although the embodiments of the present invention have been described above with reference to the accompanying drawings, those skilled in the art will appreciate that the present invention can be implemented in other specific forms without altering the technical concept or essential features thereof. Therefore, the embodiments described above should be understood to be illustrative in all respects and not restrictive.

Claims

1. A mat body having a mat structure of a predetermined unit size, with a flat upper surface, a connecting wing and a connecting groove formed on the side for joining with an adjacent unit mat, and a receiving groove formed on the lower surface; and It includes a hollow air tube composed of a plurality of air cells, which is connected to the receiving groove of the mat body, and an air circulation path is formed on the outside between the air cells. The above air tube It is manufactured by cutting a fabric with an inner layer of TPU or PVC film and an outer layer of fabric or a fabric without a fabric but of TPU or PVC film into a predetermined shape, overlapping the cut fabrics vertically and horizontally with an air layer in between, and ultrasonically fusing them to form a number of air cells in a vertically symmetrical shape, while connecting adjacent air cells with air passages from the inside, and then injecting air into each air cell and sealing it. One air cell located at one corner of the above multiple air cells is implemented as an inflating cylinder for distributing the injected air to other air cells, The inflating cylinder is connected to the inflating cylinder by a one-way air passage so that air can flow through it but cannot flow in the opposite direction, and an elastic sponge is inserted inside so that when stepped on with a foot, it is compressed and injects the air inside into the inflating cylinder, and when the foot is removed, the air passage with the inflating cylinder is blocked and the elasticity of the sponge restores it to its original shape, and external air is sucked in to replenish the air cells, characterized by having an inflating button. Inter-floor noise prevention mat using air tubes.

2. In the first paragraph, the construction-type inter-floor noise prevention mat It is characterized by further including a TPU film layer attached to the upper surface of the mat body. Inter-floor noise prevention mat using air tubes.

3. In the first paragraph, the air tube An automatic air pressure maintenance cylinder is formed on the other side corner to automatically release air when air pressure exceeds the standard value in the air cell to maintain a constant pressure. The above automatic air pressure maintenance cylinder It is characterized by comprising a sponge, an elastic spring that provides elasticity corresponding to a reference value, and a plate that blocks the air outlet by the elasticity of the elastic spring and opens the air outlet to release air when air pressure greater than the reference value is generated. Inter-floor noise prevention mat using air tubes.

4. In the first paragraph, the air tube and the mat body, An assembled type with an air tube assembled under a mat body made of PE, PVC, or PU foam. One side of the air tube is an integrated type that is bonded to the mat body made of PE, PVC or PU foam, or A sealed type with an air tube placed in the middle of a mat body made of PE, PVC or PU foam. It is characterized by combining the assembled type and the sealed type into one of the composite types with two air tubes. Inter-floor noise prevention mat using air tubes.

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