KR102382920B1 - Floor tile for reducing floor noise - Google Patents

Abstract

The present invention relates to a flooring material for reducing noise between floors, wherein a high pressure resin impregnated sheet (HPL) or a low pressure resin impregnated sheet (LPL) is attached to the upper surface of a plywood of a predetermined thickness, and penetrating the plate surface A perforated cork layer formed so that a plurality of holes are distributed at a constant density is attached to the bottom surface of the plywood, so that the flooring material is attached to the flooring surface through an adhesive applied to the bottom surface of the perforated cork layer, The perforated cork layer is attached and fixed to the bottom surface through the bottom surface in which the hole is not formed, and the plywood is attached to and fixed to the bottom surface through the adhesive filled in the hole with the bottom surface exposed through the hole as a medium. The plywood is characterized in that a plurality of vertical grooves extending in the longitudinal direction are formed on the bottom surface at regular intervals in the horizontal direction. Accordingly, it is possible to prevent dimensional changes according to the temperature and humidity of the plywood while having a cork layer for reducing noise between floors, and in addition, noise transmitted by forming an air layer inside the plywood through the vertical groove formed on the bottom surface of the plywood You can get a sound insulation effect that breaks the

Description

Flooring for noise reduction between floors {FLOOR TILE FOR REDUCING FLOOR NOISE}

The present invention relates to a flooring material for reducing noise between floors, and an object of the present invention is to provide a flooring material for reducing noise between floors, which can prevent dimensional changes due to temperature and humidity of plywood constituting the flooring material.

In general, flooring made of plywood is widely used because it is eco-friendly, and by using an adhesive as a medium, it is directly attached to the floor and fixed by the construction method, so that it can be twisted according to changes in temperature or humidity or between neighboring flooring materials. It should be held to prevent deformation such as opening of gaps.

Recently, by improving such a flooring material, as shown in FIG. 1, a cork panel 60 is formed on the bottom surface of the plywood 30 and attached to the floor surface through this, a technique for reducing noise between floors has been introduced.

However, with this technology, the cork panel 60, which has a relatively low density, is adhered to the floor due to the characteristics of the Korean ondol culture, and the cork panel 60 does not properly hold the dimensions that the plywood 30 changes depending on temperature or humidity. Problems such as widening gaps between neighboring flooring surfaces or the occurrence of step differences caused frequent customer complaints and were the reason for not being able to settle in Korea until now.

[Prior art literature]

Patent Registration No. 1737404 (Registration Date: 2017.05.12.)

Patent Registration No. 1067442 (Registration Date: 2011.09.19.)

Accordingly, an object of the present invention is to provide a flooring material for reducing noise between floors that can prevent dimensional changes according to temperature and humidity of the plywood while having a cork layer on the bottom surface of the plywood, and improve the shape of the plywood to prevent noise between floors is to do

In order to achieve the above object, in the present invention, in a flooring material for reducing noise between floors, a high pressure resin impregnated sheet (HPL) or a low pressure resin impregnated sheet (LPL) is attached to an upper surface of a plywood having a predetermined thickness, and , a perforated cork layer formed so that a plurality of holes penetrating the plate surface are distributed at a constant density is attached to the bottom surface of the plywood, so that the flooring material is formed by using an adhesive applied to the bottom surface of the perforated cork layer as a medium. It is attached to the floor surface, and the perforated cork layer is attached and fixed to the floor surface through the bottom surface where the hole is not formed, and the plywood is the bottom surface exposed through the hole. to provide a flooring material for reducing interfloor noise, characterized in that the plywood is attached and fixed to the floor surface, and a plurality of vertical grooves extending in the longitudinal direction are formed on the bottom surface at regular intervals in the horizontal direction.

Here, in the plywood, a plurality of horizontal grooves orthogonal to the vertical grooves may be formed at regular intervals in the longitudinal direction.

In this case, the vertical groove has a width of 2 to 5 mm and a depth of 2-3 mm, and the horizontal groove has a width of 2 mm and a depth of 1 to 1.5 mm, and it is preferable that the width and depth of the vertical groove are larger than the horizontal groove.

And, it is preferable that the area occupied by the hole is 8 to 50% of the total area of the perforated cork layer.

In addition, the flooring material for reducing noise between floors may further include a non-perforated cork layer for absorbing primary impact that is interposed between the plywood and the high-pressure resin-impregnated sheet or low-pressure resin-impregnated sheet.

As described above, according to the flooring material for reducing interfloor noise according to the present invention, interlayer noise is reduced by attaching to the floor through the perforated cork layer attached to the bottom of the plywood, as well as through holes distributed in the perforated cork layer. Through this, the plywood of the upper layer can be adhered and fixed to the floor surface with an adhesive, so it is possible to prevent even the dimensional change of the plywood due to changes in temperature and humidity, so that the effect of the perforated cork layer playing a double role can be obtained. there is.

In addition, by forming an air layer inside the plywood through the vertical groove formed on the bottom surface of the plywood, it is possible to obtain a sound insulation effect of breaking the transmitted noise, as well as temperature and humidity control and warming effect through the formation of the air layer can be obtained

1 is a cross-sectional view of a flooring material for reducing noise between floors according to the prior art;
2 is an exploded cross-sectional view of a flooring material for reducing interfloor noise according to an embodiment of the present invention;
3 is a partial perspective view of the bottom of the state in which the perforated cork layer is removed from the combined state of the flooring material for reducing noise between floors of FIG. 2;
Figure 4 is a schematic diagram for explaining the function of the plywood in Figure 3;
5 is a partial perspective view of the combined state of the flooring material for reducing interfloor noise of FIG. 2;
6 is a partial perspective view of the bottom of the combined state of the flooring material for reducing interfloor noise of FIG. 2;
FIG. 7 is a cross-sectional view illustrating the combined cross-sectional view of the flooring material for reducing interfloor noise of FIG. 2 and is attached to the floor surface.

As shown in FIG. 2, the flooring material 100 for reducing noise between floors according to an embodiment of the present invention includes a high pressure resin impregnated sheet (High Pressure Laminate, HPL: 110), a non-perforated cork layer 120, and plywood 130. and a perforated cork layer 140 .

The high-pressure resin-impregnated sheet 110 is an overlay (111) obtained by impregnating paper with melamine resin and drying, patterned paper 112 obtained by drying paper by impregnating paper with melamine resin, and impregnating paper with phenol resin The kraft paper (kraft pater, 113) obtained by drying is sequentially laminated from the top, heated, and pressurized to be integrated. At this time, the upper surface of the overlay 111 may be heated and pressurized in a state in which a separate release paper (not shown) is laminated to form an anti-slip pattern composed of protrusions and grooves.

The non-perforated cork layer 120 is a cork material that is not perforated, and is interposed between the high-pressure resin-impregnated sheet 110 and the plywood 130 through an adhesive applied to the upper and lower surfaces. The non-perforated cork layer 120 is an additional component that primarily absorbs shock prior to the perforated cork layer 140 to be described later, and at the same time, a user's foot or body part that comes into contact with the surface of the flooring material 100 through this. may induce a soft touch. If necessary, the non-perforated cork layer 120 may be omitted.

The plywood 130 is a plate material made of a predetermined thickness by stacking and integrating thin wooden boards. A plurality of vertical grooves 131 are formed on the bottom surface of the plywood 130 as will be described later.

The perforated cork layer 140 is attached to the bottom surface of the plywood 130 through an adhesive as a main component for noise reduction, and a plurality of holes 141 penetrating the plate surface are uniformly distributed.

As shown in FIG. 3 , the plywood 130 has a plurality of vertical grooves 131 extending in the longitudinal direction, and a plurality of horizontal grooves 132 orthogonal thereto. These vertical grooves 131 and horizontal grooves 132 prevent warping in the horizontal direction and the vertical direction of the plywood 130 as shown in FIG. 4, thereby preventing the warping of the plywood 130 as a whole. there is.

In particular, by forming an air layer inside the bottom surface of the plywood 130 through the vertical groove 131 having a relatively larger size than the horizontal groove 132, it is transmitted downward from the space in which the flooring 100 is laid. By providing a space where the generated noise breaks down, a sound insulation effect can be exhibited. Furthermore, temperature and humidity control and a warming effect can be expected from the air layer formed by the vertical groove 131 .

Such a vertical groove 131 is preferably a width (W1) of 2 to 5 mm, a depth (H1) of 2 to 3 mm, and in the case of a standard size in which the overall width (V) of the flooring 100 is 95 mm, these vertical grooves 131 ) is preferably formed at regular intervals in 2-3 lines. If it is more than that, there is a risk that the plywood 130 may be broken. In addition, when there is only one vertical groove 131 or is smaller than the size, it is difficult to achieve the above-described effect.

In contrast, the horizontal groove 132 is preferably smaller than the vertical groove 131 in width (W2) 2mm, depth (H2) 1 ~ 1.5mm.

As shown in FIG. 5, the upper surface of the flooring material 100 for reducing inter-floor noise obtained by integrating with the above configuration is a high-pressure resin-impregnated sheet 110, and as shown in FIG. 6, the bottom surface is a perforated cork layer ( 140) is achieved. The holes 141 are formed to be maintained at the same size and at regular intervals along the plate surface of the perforated cork layer 140 so as to be distributed at a constant density.

A state in which the bottom surface of the flooring material 100 for reducing interlayer noise made of the perforated cork layer 140 is attached to the floor surface 1 through the applied adhesive may be expressed as shown in FIG. 7 . The perforated cork layer 140 is attached and fixed to the floor surface 1 through the adhesive 151 through the bottom surface 142 (refer to FIG. 6 ) on which the hole 141 is not formed. At the same time, the plywood 130 on the perforated cork layer 140 is also attached and fixed to the floor surface 1 through the adhesive 152 that is introduced into the hole 141 and filled.

Accordingly, the plywood 130 is attached and fixed to the floor surface 1 through the hole 141 even when the temperature of the floor surface 1, which is an ondol floor, changes due to a change in temperature or humidity in the room. Warping can be prevented.

For the surplus adhesive 152 that remains after filling the hole 141, the vertical groove 131 and the horizontal groove (132 in FIG. 3) formed on the bottom surface of the plywood 130 provide an extra space to penetrate.

In FIG. 6 , the total area occupied by the hole 141 is preferably 8 to 50% of the total area of the perforated cork layer 140 . When it exceeds 50%, the noise reduction effect by the perforated cork layer 140 is reduced, and when it is less than 8%, the effect of attaching and fixing the plywood 130 to the floor surface (1 in FIG. 5) through this falls. .

Meanwhile, in the above embodiment of the present invention, it has been described that the high-pressure resin-impregnated sheet (110 in FIG. 2) forms the uppermost layer of the flooring material 100 for reducing interfloor noise, but the present invention is not limited to this configuration. For example, instead of the high-pressure resin-impregnated sheet 110, a low-pressure resin-impregnated sheet (Low Pressure Laminate, LPL; not shown) may be configured to form the uppermost layer.

The low-pressure resin-impregnated sheet (LPL) is a configuration obtained by stacking an overlay (see 111 in FIG. 2 ) and a patterned paper 112 and heating and pressurizing them to be integrated, and even at this time, a separate release paper (not shown) on the upper surface of the overlay. By heating and pressing in a laminated state, it is also possible to form an anti-slip pattern composed of projections and grooves.

In addition, although it has been described that the hole ( 141 in FIG. 6 ) in the above embodiment has a circular shape, the present invention is not limited to this shape, and the hole may be formed in a square or other polygonal shape or a special pattern.

And, since the above-described flooring material 100 for reducing interfloor noise is merely an embodiment for helping understanding of the present invention, the scope of rights and technical scope of the present invention defined by the following claims and their equivalents is not limited to what has been described above.

100: flooring material for reducing noise between floors
110: high pressure resin impregnated sheet
111: overlay
112: pattern paper
113: kraft paper
120: non-perforated cork layer
130: plywood
131: vertical groove
132: horizontal groove
140: perforated cork layer
141: Hall
142: bottom surface where no holes are formed
151, 152: adhesive

Claims (5)

In the flooring material for noise reduction between floors,
A high pressure resin impregnated sheet (HPL) or low pressure resin impregnated sheet (LPL) is attached to the upper surface of the plywood of a predetermined thickness, and a plurality of holes passing through the plate are formed to be distributed at a constant density. By attaching the perforated cork layer to the bottom surface of the plywood,
The flooring is
It is attached to the floor surface through the adhesive applied to the bottom surface of the perforated cork layer as a medium, and the perforated cork layer is attached and fixed to the floor surface through the bottom surface in which the hole is not formed, and the plywood forms the hole The bottom surface exposed through the hole is attached and fixed to the bottom surface through the adhesive filled in the hole,
The plywood is
A plurality of vertical grooves extending in the longitudinal direction are formed on the bottom surface at regular intervals in the horizontal direction,
An area occupied by the hole is 8 to 50% of the total area of the perforated cork layer. According to claim 1,
The plywood is
A flooring material for reducing interfloor noise, characterized in that a plurality of horizontal grooves orthogonal to the vertical grooves are formed at regular intervals in the longitudinal direction. 3. The method of claim 2,
The vertical groove has a width of 2 to 5 mm and a depth of 2 to 3 mm,
The horizontal groove has a width of 2 mm and a depth of 1-1.5 mm,
The flooring for interfloor noise reduction, characterized in that the width and depth of the vertical groove are greater than that of the horizontal groove. delete According to claim 1,
The flooring material for reducing interfloor noise, characterized in that it further comprises a non-perforated cork layer for absorbing primary shock interposed between the plywood and the high-pressure resin-impregnated sheet or the low-pressure resin-impregnated sheet.

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