JPH0657926A - Sound-insulating floor board - Google Patents

Abstract

(57) [Summary] (Corrected) [Structure] At least wooden board, sound insulation or vibration control sheet,
A sound insulation floor board in which a wood board, a cushioning foam sheet, a wood board, and a base material having a cushioning function are laminated in this order. [Effect] By providing the resin sheet layer 2 as a layer immediately below the wooden board 1 that forms the surface, sufficient sound insulation and surface smoothness are maintained for a long period of time without the strength of the floor board 10 decreasing. be able to.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound insulation floor board, and in particular,
The present invention relates to a sound insulation floor plate having improved sound insulation properties and strength in the shearing direction, thereby further improving surface characteristics.

[0002]

2. Description of the Related Art Laying a wooden floorboard directly on a concrete slab or on a waste plywood installed on the concrete slab has been conventionally performed as so-called flooring construction. Many wooden floor boards have been proposed and used from the viewpoint of sound insulation or improvement of walking feeling. As shown in FIG. 3, a typical sound insulation floor board is widely used today. , Wood board 51
A plurality of square unit plates 50 each having a male seed 52 and a female seed 53 formed on four circumferences are arranged in such a manner that their actual portions mesh with each other, and the lower portion of the actual engaging portion is joined by a hot melt resin 54. After that, a cushioning material 55 made of a material such as a polyolefin-based foam is adhered to almost the entire back surface, and further, as shown in FIG.
A sheet 62 having a certain elasticity made of a material such as foamed synthetic resin and a perforated wood plate 63 are sequentially attached to the back surface of the, and a square plate 60 having male seeds 64 and female seeds 65 on its four circumferences is formed, After arranging a plurality of the rectangular plates 60 with their real parts meshing with each other, a cushioning material 66 made of a material such as a polyolefin-based foam is attached to almost the entire back surface of the perforated wood plate 63. I can give you what I did. Note that FIG. 5 is a view showing a state in which a plurality of unit plates 50 are arranged as described above, and the cross-sectional views along the line AA are FIG.
Equivalent to.

[0003]

Among the sound insulation floorboards having the above-described structure, for example, the sound insulation floorboard having the structure shown in FIG. 3 has a simple structure and has sufficient strength, but is a polyolefin laminated on the back surface. Sound absorbing and soundproofing effects are to be obtained only by the action of the cushioning material 55 made of a material such as a foamed material, and the soundproofing and soundproofing effects are not always sufficient. In addition to the cushioning material 66, the foamed resin sheet 62 and the perforated wood board 63 having elasticity are shown in FIG.
The sound-insulating and sound-insulating effects are to be obtained by the action of, and the sound-insulating property and the like are sufficiently effective. The wooden board 61 on the surface had to be relatively thin. Therefore, when it is used for a long period of time, if the size of the hole or groove formed in the perforated wood board 63 is relatively large, the surface wood board portion corresponding to the hole or groove will have some lines. -Like steps or dents appear, and depending on the viewing direction, the steps or dents may be clearly caught on the floor surface.

An object of the present invention is to eliminate the above-mentioned inconveniences of the conventional sound insulation floorboard, and more specifically, the sound insulation effect is sufficiently obtained by laminating a plurality of layers having different physical properties. It is an object of the present invention to provide a sound insulation floor board that can achieve the smoothness of the surface wood board for a long period of time while being achievable.

[0005]

In order to solve the above problems and to achieve the object, the present invention provides at least a wood board, a sound insulation or vibration damping sheet, a wood board, a cushioning foam sheet,
Disclosed is a sound insulation floorboard in which a wood board and a base material having a cushioning function are laminated in this order. Except for the wooden board located at the top layer and the sound insulation or damping sheet below it,
It is a preferred embodiment of the present invention to form holes or grooves in other laminated materials individually or in communication.

[0006]

The present invention will be described in more detail based on the following examples. FIG. 1 is a sectional view showing an embodiment of a sound insulation floor board according to the present invention (however, only one end thereof is shown). The overall shape of the wooden floorboard 10 is the same as that conventionally used as a wooden floorboard, and a plurality of sheets may be joined to form a sound insulation floorboard having stepped ends as shown in FIG. It may be used as a sound insulation floor plate.

The sound insulation floor board 10 according to the present invention differs from the conventional one in its laminated structure. That is, the uppermost layer is the first wood board 1, which is a relatively hard board made of a laminated veneer board, particle board, hard board, MDF (medium fiber board) or the like. 0.5 on the back of the first wood board
A sound insulating or damping sheet 2 having a thickness of about 2.0 mm is attached. Examples of the sound insulation or vibration damping sheet include a powdered lead-containing vinyl chloride sheet, an inorganic powder-filled rubber sheet, and a vinyl chloride sheet.

On the back surface of the sound insulation or vibration control sheet 2, a relatively hard second wood board 3 made of plywood, particle board, hard board, MDF (medium fiber board), etc. is again stuck and laminated. 0.8 to 2.0 m on the back side of the second wood board 3.
A cushioning foam sheet 4 having a thickness of about m is attached and laminated. As the cushioning foam sheet, a foam sheet of natural rubber or synthetic rubber, a polyolefin foam sheet, or the like can be used.

On the back surface of the cushioning foam sheet 4, a relatively hard third wooden board 5 made of plywood, particle board, hard board, MDF (medium fiber board), etc. is further laminated. As a lowermost layer, a base material 6 having a cushioning function is stuck and laminated on the back surface of the third wood board 5. As the base material 6, it is possible to effectively use an appropriate foamed resin material, a non-woven fabric, a fiber mat simple substance, or a laminate thereof. In the illustrated embodiment, a nonwoven fabric laminated with a foam rubber uneven sheet having a thickness of 2 mm is used.

Further, in this embodiment, the groove 8 running in the width direction of the floor plate is provided mainly for the purpose of giving the following ability to the floor surface laid on the floor plate 10, the second wood board 3 and the cushioning foam sheet. 4 and a plurality of third wooden boards 5 are formed so as to penetrate the third wooden board 5 (only one of them is shown in the figure), and the third wooden board 5 mainly has the purpose of improving sound insulation. To a plurality of holes 9 (only one of which is shown in the figure). In addition, a large number of embosses 10 are formed on the back surface of the base material 6 having a cushioning function.

Since the sound insulation floor board 10 of the present invention has the above-mentioned multi-layer structure, it has not only the sufficient sound insulation effect and the same sound insulation effect as the conventional example shown in FIG. 6, but also the sound insulation function. The thickness of the cushioning foam sheet 4 is compared with that of the sound insulation floor board having the same thickness by dispersively carrying the sound insulation or vibration damping sheet 2 and the cushioning foam sheet 4 which are sandwiched between the wooden boards. Can be thin and
Moreover, by interposing the sound insulation or damping sheet layer 2 between the first wood board 1 which is the uppermost layer and the second wood board 3 which is the lower layer thereof, the direction of shearing with respect to the sound insulation floor board 10 is reduced. Great resistance is given to the load. As a result, not only the strength of the floorboard as a whole is improved, but also when the groove 8 or the hole 9 is formed to have a relatively large size, the influence of the shape on the first wood board 1 is significantly increased. It is alleviated, and even if it is used for a long period of time, it is possible to reliably prevent a step or a depression corresponding to the hole or groove from appearing on the surface of the first wood board 1. Thereby, the smoothness of the surface is maintained for a long time.

FIG. 2 shows another embodiment of the sound insulation floor board according to the present invention. This embodiment differs from that of FIG. 1 in that a large number of holes 91 are formed not only in the second wood board 5 but also in the second wood board 3. In this embodiment, the sound insulation effect is further increased by providing the second wooden board 3 with the holes 91, but the influence of the holes 91 is prevented from appearing on the surface of the first wooden board 1. To be done.

[0013]

EFFECTS OF THE INVENTION By providing a sound-insulating or vibration-damping sheet layer as a layer immediately below the wooden board forming the surface, sufficient sound insulation and smoothness of the surface can be maintained for a long period of time without lowering the strength of the floor board. Can be maintained.

[Brief description of drawings]

FIG. 1 is a partial sectional view of an embodiment of a sound insulation floor board according to the present invention.

FIG. 2 is a partial sectional view of another embodiment of the sound insulation floor board according to the present invention.

FIG. 3 is a cross-sectional view showing a conventional sound insulation floor board.

FIG. 4 is a cross-sectional view showing another conventional sound insulation floor board.

FIG. 5 is a top view showing the arrangement of sound insulation floor boards.

[Explanation of symbols]

1 ... 1st wood board, 2 ... sound insulation or damping sheet, 3 ... 2nd
Wood board, 4 ... cushioning foam sheet, 5 ... third wood board,
6 ... Buffer base material, 8 ... Groove, 9 ... Hole

Claims (1)

[Claims] 1. A laminate comprising at least a wood board, a sound insulation or vibration damping sheet, a wood board, a cushioning foam sheet, a wood board, and a base material having a cushioning function in this order.
Sound insulation floor board.