JPH05133082A - Sound insulating floor material - Google Patents

Abstract

PURPOSE:To prevent the creak in stepping by providing a floor material body and a sound insulating shock absorbing body having a number of recessed parts and protruding parts which is provided under the floor material body, and providing a sheet material for bonding the top ends of the protruding parts on the lower surface of the shock absorbing body. CONSTITUTION:A floor material body 1 is formed of a laminated plate consisting of plywood layers 7, 9 with a rubber sheet layer 10 and a surface decorative single plate 6. A nonwoven fabric 13 is interposed between the floor material body 1 and a sound insulating shock absorbing body 4 such as a synthetic rubber foamed body, and the three are mutually bonded with an adhesive. Otherwise, the floor material body and the sound insulating shock absorbing body having irregular parts on the lower surface are provided, and a sheet material is arranged on the lower surface of the shock absorbing body and bonded to each protruding part top end. In this case, a plurality of rectangular floor material bodies are arranged mutually adjacent in the lateral direction, a tongue is formed on one of the opposite surfaces and a groove on the other side in such a manner as to be mutually separable at the time of bending in reversed V-shaped. The separation of the tongue and the groove at being in reversed V-shape and the fitting at stretching are smoothly performed. Thus, each body is fixed by the flexible shock absorbing material, whereby workability is improved, and creak in stepping can be prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound insulating floor material.

[0002]

2. Description of the Related Art Conventionally, as a sound-insulating floor material, as shown in FIG. 7, a floor material main body (51) and a large number of recesses (52) provided below the floor material main body (51) are provided. There is known one provided with a sound insulating cushioning body (54) having a convex portion (53) (see Fig. 9 of Japanese Utility Model Publication No. 3-78832).

[0003]

As described above, the reason why a large number of irregularities are formed on the lower surface of the sound insulating cushioning body is that the sound insulating property is superior to that of the flat lower surface.

By the way, sound-insulating floor materials are usually directly applied to a concrete floor using an adhesive, but the concrete floor has unavoidable irregularities. When pasting the conventional sound insulation floor material to such a concrete floor,
Stomping occurs at the portion corresponding to the concave portion of concrete. The degree of stomping depends on the type of adhesive, the adhesive viscosity,
Although it varies depending on the adhesive manufacturer, in any case, in view of the fact that different adhesives are used depending on the site,
Regardless of what adhesive is used, it must be free of stomping.

Therefore, the inventors of the present invention have sought out the cause of the stepping noise, and have found that there are many irregularities on the lower surface of the sound insulation cushioning body.
Now, with reference to FIG. 5, the reason why the stepping noise occurs will be described.

When the sound insulation floor material is applied to the concrete floor, first, the adhesive is applied to the concrete floor surface. By the way, as shown in Fig. 7, the concrete floor (C) has a recess (C1).
If there is a convex part (C2), the sound insulation floor material is added to the concrete floor (C).
When simply placed on the floor, the sound insulating floor material floats in the air in the recess (C1). As a result, as shown in Fig. 5 (a),
Convex portion of the sound insulating cushioning body (54) at a position corresponding to the concave portion (C2)
(53) does not reach the adhesive layer (A) and is not bonded. Next, when pressure is applied from above to the sound insulating floor material during construction, the convex portion (53) reaches the adhesive layer (A) as shown in FIG. 5 (b). However, when the pressure is removed, the sound insulation floor material returns to its original state.
The convex part (53) in contact with (A) attracts not only the contacted part but also the adhesive around it to form the aggregate part (A1) of the adhesive as shown in Fig. 5 (c). Although it moves to, the adhesive splits up and down while pulling a thread between the convex part (53) side and the concrete floor (C) side as shown in Fig. 5 (d) while solidifying as it is. A small number of thick pillars (A2) remain. When stepping on the floor material in this state, a small number of thick columns of the adhesive (A2)
Solidified adhesive (A3) on the tip side of the convex part (53) where the root of the broken column remains, and solidified adhesive (A4) on the concrete floor (C) side where the root of the broken column remains. ) Collide with each other to generate a sound, which results in stagnation. This sound never disappears.

It is an object of the present invention to provide a sound insulating flooring material that does not generate squealing noise.

[0008]

A sound-insulating floor material according to the invention of claim 1 is a sound-insulating floor material, and a sound insulating material provided under the floor material body and having a large number of uneven portions on at least the lower surface of the upper and lower surfaces. In a sound-insulating flooring material including a sound-absorbing cushioning material, a flat sheet-like material is arranged on the lower surface of the sound-insulating cushioning material and is joined to the tips of almost all the projections on the lower surface.

A sound insulation flooring material according to a second aspect of the present invention is the sound insulation flooring material according to the first aspect, wherein the flooring material main body is rectangular and a plurality of flooring material main bodies are arranged adjacent to each other in the width direction. The male and female fruits on one side of the opposite side and the female and female fruits on the other side are separated from each other when they are bent into an inverted V shape by aligning two from the boundary of the flooring materials adjacent to each other. The sex buffer has flexibility and extends over a plurality of floor covering bodies.

As a material of the flooring material main body, a wood board made of plywood, parallel plywood, medium fiber board, particle board or a combination thereof is suitable. Further, in order to reduce the rigidity of the flooring material main body, a large number of grooves or holes may be provided on the back surface, or a plate having a large number of grooves may be interposed in the middle of the thickness. Further, in order to improve the sound insulation, a buffer intervening layer may be provided in the middle of the thickness. On the surface of the flooring material body, makeup is applied by pasting a decorative veneer, print paper, a decorative sheet, or the like, or by finishing the surface by painting.

Examples of the material of the sound insulation cushioning body include foamed synthetic resin, foamed synthetic rubber, viscoelastic substance, rubber-like substance, fibrous substance and three-dimensional net-like elastic body. Among them, foamed synthetic rubber and foamed synthetic resin are preferable. Examples of common synthetic resins include polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyurethane, and phenol. Further, specific examples of the fibrous substance include insulation board, glass fiber, asbestos, those obtained by impregnating these fibers with asphalt pitch, felt, carpet and the like.

As the material of the sheet-like material, a single plate, a non-woven fabric, a woven fabric, a resin-impregnated paper, a foam sheet of synthetic resin / rubber, a synthetic resin sheet of polyethylene, polypropylene, polyvinyl chloride, polystyrene or the like, or a rubber sheet. ,
Other flexible sheets that can be bent can be used, but a single sheet of 0.4 to 0.6 mm is particularly suitable.

In the case of the sound-insulating floor material according to the second aspect, the sheet-like material may extend over a plurality of floor materials like the sound-insulating cushioning material, or may exist separately for each floor material main body. Good. However, if a material that does not bend easily is adopted as the sheet-like material, it is necessary to separate it.

[0014]

A sound-insulating floor material according to the present invention comprises a floor-material main body and a sound-insulating cushioning body provided under the floor-material main body and having a large number of uneven portions on at least the lower surface of the upper and lower surfaces. In the sound-insulating flooring material, a flat sheet-like material is arranged on the lower surface of the sound-insulating cushioning body and is joined to the tips of almost all the convex portions on the lower surface, so that the stepping is prevented. The reason will be described with reference to FIG.

First, when the sound insulation floor material is placed on the uneven concrete floor (C) coated with the adhesive, the flat sheet-like material (5) at the position corresponding to the recess (C1) is shown in FIG. As shown in (a), it does not reach the adhesive layer (A) and remains unbonded. Next, when pressure is applied from above to the sound insulating floor material during construction, the flat sheet material (5) reaches the adhesive layer (A) as shown in Fig. 6 (b). However, when the pressure is removed, the sound insulating flooring material returns to the original state, but since there is no exposed convex portion like the conventional sound insulating flooring material at this time,
As shown in FIG. 6 (c), the adhesive moves upward while pulling innumerable thin threads (A5) between the flat sheet side and the concrete floor side as it rises. Finally, as shown in Fig. 6 (d), a myriad of thin threads of adhesive are used.
(A6) solidifies in the fractured state. If the floor material is stepped on in this state, the broken yarn of the adhesive will be crushed, so that the noise will be heard at first, but since the crushed broken yarn is originally thin, the noise will not be heard from the next time.

In the sound-insulating flooring material according to the second aspect of the present invention, the flooring material main body is rectangular and a plurality of flooring material main bodies are arranged adjacent to each other in the width direction, and a male seed is provided on one of the opposite side surfaces. On the other hand, female fruits are provided so as to be separable from each other when they are bent in an inverted V shape by combining two adjacent floor material main bodies, and the sound insulation cushioning body has flexibility. Since it spans over multiple floor coverings, the edges of the sound insulation flooring on the skirting board side are cut and removed so that the entire width matches the distance between the existing floor covering and the skirting board when the floor covering is installed. After that, the entire body can be bent into an inverted V shape from the boundary between two adjacent flooring body main bodies.
Conversely, if it is bent into a V shape, the male of one floor material main body can be disengaged from the female of the other floor material main body, so there is no limit to the bending angle and it can be easily folded between the existing floor material and the skirting board. Can be bent. If you bend it so that it can be easily fitted and then press down the top of the fold, the male and female will fit back to the original shape and the two floor materials will be in a straight line from the inverted V shape, and the existing floor material and skirting board. It fits in without any space between. Moreover,
As described above, even if the male and female fruits are separated by being bent into the inverted V shape, the floor material main bodies do not become separated due to the presence of the flexible sound insulating cushioning material.

[0017]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the invention of claim 1 will be described with reference to FIG.

The sound-insulating floor material shown in FIG. 1 is provided with a floor material main body (1) and a large number of concave and convex portions (2) and convex portions (3) provided on the bottom surface of the floor material main body (1) in a staggered manner. And a flat sheet-like object (5) is placed on the lower surface of the sound insulating buffer (4), and all the convex portions (3) on the lower surface of the sound insulating buffer (4) are arranged. It is joined to the tip.

The floor material body (1) is a decorative veneer with a thickness of 0.3 mm.
2.5mm thick upper plywood layer (7) with (6) pasted on the surface
And a lower plywood layer (9) with a thickness of 2.5 mm having a plurality of kerfs (8) and a 1.0 mm-thickness interposed between the upper plywood layer (7) and the lower plywood layer (9) It is a rectangular laminated plate consisting of a rubber sheet layer (10) and these are adhered to each other. A male seed (11) is provided on two sides of the rectangle intersecting with each other, and a female seed () is provided on the other two sides. 12) are provided respectively. Sound insulation buffer
(4) is a synthetic rubber foam having a foaming ratio of 30 times and a thickness of 8.0 mm, and a thickness of 0.2 mm is provided between the synthetic rubber foam and the floor material main body (1).
A non-woven fabric (13) of mm is interposed, and the three are joined by an adhesive. The sheet material (5) is a single plate having a thickness of 0.4 mm. In this embodiment, the sheet-like material (5) is bonded to the tips of all the convex portions (3) of the sound-insulating cushioning body (4), but it is not necessary to be all, and it is almost the whole. It is enough that they are joined together. Also male (11) and female
The joining is not limited to the joining by (12), and the phaseless joining or the like may be used.

2 and 3 show an embodiment of the invention of claim 2.

The sound-insulating floor material shown in the figure is directly bonded to the floor material main body (21) and the lower surface of the floor material main body (21) and has a large number of concave portions (22) and convex portions (23) only on the lower surface. A sound-absorbing cushioning body (24) having a flat sheet-like object on the lower surface of the sound-insulating cushioning body (24).
(25) is arranged and joined to the tips of almost all the protrusions (23) on the lower surface. The floor material main body (21) is rectangular, and the two floor material main bodies (21) are arranged adjacent to each other in the width direction, and the male seed (31) is provided on one of the opposite side surfaces and the male material (31) is provided on the other side surface. As shown in FIG. 3, the female seeds (32) are separated from each other when they are bent into an inverted V shape by combining two adjacent floor material main bodies (21) with each other so as to be sound-insulating. The cushioning body (24) is flexible and extends over the entire two flooring material main bodies (21).

The side surface with the male seed (31) is flush with the male seed (31) with respect to the upper and lower sides, but in the side surface with the female seed (32), the side surface below the female seed (32) is the same as above. It is slightly retracted from the side.
As a result, when the male (31) was fitted into the female (32),
There is a slight gap below the base of (31). And the male (3
The lower side of 1) and the female seed (32) is an arc drawn with a radius centered on the abutting upper ends of both floor material main bodies (21), and the upper side is the floor material main body (21) retracted. It is an arc drawn with a radius centered on the lower edge of the lower side surface. By doing so, separation of the male fruit (31) and the female fruit (32) at the time of bending in the inverted V shape,
The mating of the male seeds (31) and female seeds (32) during straight extension is extremely smooth. However, the shapes of male and female are not limited to such shapes.

The floor material main body (21) is a plywood with a thickness of 9.0 mm, the surface of which is decoratively coated, and the sound insulation cushioning body (24) is a synthetic rubber with a foaming ratio of 30 times and a thickness of 5.0 mm. It is an independent foam. The sheet-like material (25) is a single plate having a thickness of 0.6 mm, and is present in each of the two floor material main bodies (21), and a slight gap is provided between the two.

FIG. 4 shows a modification of the sound-insulating cushioning body. The cushioning body (44) shown in the figure has a flat upper surface, and a rectangular concave portion (42) and a convex portion (43) when viewed from the bottom surface on the lower surface. It is a staggered arrangement.

[0025]

According to the sound-insulating flooring material of the invention of claim 1,
Stomping is prevented.

Further, according to the sound insulating floor material of the invention of claim 2, the floor on the skirting board side is further arranged so that the entire width matches the distance between the existing floor material and the skirting board when the floor material is constructed. After cutting and removing the edge of the main body of wood, bend the entire body from the boundary of the two floor materials into an inverted V shape, remove the male seed of one floor material main body from the female seed of the other floor material main body, and remove the existing floor. If the bending angle is such that it can be easily fitted between the lumber and the skirting board, and then the folding top is pressed down, the male and female fruits will fit into the female and the two flooring bodies will be straight from the inverted V shape. Since it fits without gap between the existing flooring and the skirting board, it is effective for the front skirting method, and even if the male and female are separated by being bent into an inverted V shape, the flooring bodies will be separated from each other. Since it does not fall apart due to the presence of the flexible sound-insulating cushioning material on the lower surface, it has good workability and good workability.

[Brief description of drawings]

1 is a cross-sectional view showing an embodiment of the invention of claim 1;

FIG. 2 is a cross sectional view showing an embodiment of the invention of claim 2;

FIG. 3 is a transverse cross-sectional view showing a state where two floor material main bodies are bent into an inverted V shape in the embodiment of FIG.

FIG. 4 is a cross-sectional view showing a modified example of the sound insulating cushioning body.

[Fig. 5] The reason why the conventional sound-insulating floor material causes stagnation
It is a fragmentary sectional view explaining in order of (a)-(d).

FIG. 6 is a partial cross-sectional view illustrating the reason why the sound-insulating flooring material of the present invention does not cause squealing in the order of (a) to (d).

FIG. 7 is a cross-sectional view of a conventional example in a state of being installed on a concrete floor.

[Explanation of symbols]

 1,31 ： Floor material body 2,22 ： Concave part 3,23 ： Convex part 4,24 ： Sound insulation buffer

Claims (2)

[Claims] 1. A sound-insulating buffer having a floor material main body (1) and a large number of concave portions (2) and convex portions (3) provided at the bottom of the floor material main body (1) and at least on the lower and upper surfaces. In a sound-insulating flooring with a body (4), a flat sheet-like object (5) is placed on the lower surface of the sound-insulating cushioning body (4), and the tips of almost all the protrusions (3) on the lower surface. Sound insulation floor material that is joined to. 2. The flooring material main body (21) is rectangular and a plurality of flooring material main bodies (21) are arranged adjacent to each other in the width direction, and a male seed (31) is provided on one of the opposite side surfaces. On the other hand, a female seed (32) is provided so as to be separable when two of the floor material bodies (21) adjacent to each other are combined and bent into an inverted V shape, and the sound insulating cushioning body (24) is provided. The sound-insulating floor material according to claim 1, wherein the floor material is flexible and extends over a plurality of floor material main bodies (21).