JPH1088778A - Sound shield floor panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sound shield panel which can be manufactured through a simple manufacturing process, and which can be prevented from being partly dented at the front surface thereof, which can hardly generate floor squeal and which is excellent in sound shield. SOLUTION: In a sound shield panel, a plurality of deep groove-like slits 8 are formed from the rear surface of a woody base board 6 having a decorative front surface 4, and a foamed plastic or foamed rubber 10 is filled in the deep groove-like slits 8. Further, a shock absorbing panel 12 composed of a plastic sheet, a foamed plastic sheet, a rubber sheet, a foamed rubber sheet and the like is fixed to the rear surface of the woody base board in which the foamed plastic or the foamed rubber 10 is filled in the slits 8.

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 panel used for flooring such as a Western-style room, a Japanese-style room, a corridor, a hall, and the like.

[0002]

2. Description of the Related Art As a sound-insulating floorboard used for flooring of a house or the like, there is, for example, a wooden vibration-insulating flooring material described in Japanese Utility Model Publication No. 4-52351. In this wooden vibration-isolating floor material, a finishing board provided with through or semi-through slits at predetermined intervals is closely attached to a buffer board laid on a floor base of a building, and on this finishing board A flexible thin plate made of a synthetic resin sheet or the like is stuck, and a wooden decorative board is disposed on the flexible thin plate. The above-mentioned actual fair 4-5235
The No. 1 wooden anti-vibration flooring material does not reduce the floor impact noise prevention performance even if a hard wooden floor decorative panel is used as the top layer. Since the applied solid vibration is extremely well prevented and the propagation of the solid vibration on the floor of the same floor is also blocked, the living environment under the floor and in the adjacent room can be significantly improved.

[0003]

However, the above-mentioned wooden anti-vibration flooring material of Japanese Utility Model Publication No. 4-52351 has the following drawbacks. Since the buffer plate, the finishing plate, the flexible thin plate and the wood decorative plate are laminated to form a four-layer structure, the manufacturing process becomes complicated. A penetrating or semi-through slit is provided in the finishing plate,
Since a space is formed between the finishing plate and the flexible thin plate at the slit, when a heavy object falls on the floor surface or a caster supporting a heavy object such as furniture passes through the floor surface. In some cases, a portion of the wooden veneer located above the space may be partially dented by the impact of a dropped heavy object or a caster. As described above, since a space is formed between the finish plate and the flexible thin plate at the slit portion of the finish plate, floor noise may occur after floor construction due to this space.

The present invention has been made in view of the above circumstances, and can be manufactured by a simple manufacturing process, and the floor is not partially dented when the floor is impacted. In addition, an object of the present invention is to provide a sound insulating floor panel which is less likely to produce floor noise and has excellent sound insulating properties.

[0005]

According to the present invention, in order to achieve the above object, a plurality of deep groove-shaped slits are formed from the back surface of a wooden substrate having a decorative surface, and a foamed plastic or A sound-insulating floor panel characterized by being filled with foamed rubber and having a buffer plate fixed to the back surface of the wooden substrate.

In this case, the shape of the plurality of deep groove slits is not particularly limited, but the plurality of deep groove slits formed along the length direction of the wooden substrate, and the plurality of deep groove slits formed along the width direction of the wooden substrate. It is preferable to use a plurality of deep groove-shaped slits or a plurality of deep groove-shaped slits crossing vertically and horizontally in order to enhance the sound insulation of the floorboard. Further, the deep groove slit may be a plurality of ring-shaped deep groove slits.

The sound-insulating floorboard of the present invention is manufactured by the steps of forming a deep groove-like slit in a wooden substrate, filling the deep groove slit with foamed plastic or foam rubber, and fixing a buffer plate to the wooden substrate. be able to. Therefore,
Complicated processes of forming slits in the finishing plate, laminating the buffer plate and the finishing plate, laminating the finishing plate and the flexible thin plate, and laminating the flexible thin plate and the wooden decorative board are required.
It can be manufactured in a simpler process compared to No. 2 wooden anti-vibration flooring. In addition, since the deep groove slits of the wooden substrate are filled with foamed plastic or foamed rubber, no space exists inside the floorboard. Therefore, the actual fairness 4-5235
Unlike the wooden anti-vibration flooring of No. 1, due to the internal space of the floorboard, the floor is not partially dented or floor-sounding when the floor is impacted. Further, since a plurality of parallel deep groove-shaped slits are formed in the wood-based substrate, sound propagation inside the wood-based substrate is suppressed well, and foam plastic or foam rubber filled in the deep groove-shaped slit is used. The sound propagating through the wood-based board and the sound generated from the wood-based board are effectively absorbed by the synergistic action with the buffer plate fixed to the back surface of the wood-based board,
Has excellent sound insulation.

[0008]

1 to 3 show one embodiment of a sound insulating floor panel according to the present invention. FIG. 1 is a plan view of the sound insulating floor panel, FIG. 2 is a bottom view of a wooden board, and FIG. 3 is III-I of FIG.
It is an expanded sectional view of a sound insulation floor board along the II line. In the sound insulating floor panel 2 of this example, a plurality of parallel deep groove-shaped slits 8 are formed on a wooden substrate 6 having a front surface 4 as a decorative surface.
The slit 8 is filled with foamed plastic or foamed rubber 10 and a buffer plate 12 is fixed to the back surface of the wooden substrate 6. Although not shown in FIG. 1 and FIG. 2, the wooden substrate 6 of the sound insulating floor panel 2 of the present example is subjected to chamfering on two sides and real processing on four sides (see FIG. 3).

In the present invention, the wooden substrate 6 includes
It is possible to use a plywood, a muku board, a laminated wood, a particle board, a hard board, a MDF, an insulation board, or another fiber board whose surface is subjected to cosmetic processing. Although the size of the wooden substrate 6 is not limited, for example,
About 30cm in width, about 180cm in length, 8 ~ 15m in thickness
m can be used.

A deep groove-shaped slit 8 provided in a wooden substrate 6
May be formed along the length direction of the wood-based substrate 6 as in the present embodiment. Alternatively, for example, a deep groove along the width direction of the wood-based substrate 6 as shown in FIG. The slit 8 may be a deep groove-shaped slit 8 crossing vertically and horizontally in a grid pattern as shown in FIG. 4B, or a circular ring-shaped deep groove-shaped slit 8 as shown in FIG. 4C. When the deep groove slits are crossed as shown in FIG. 4 (b), the deep groove slits formed obliquely with respect to the wooden substrate may be crossed, and as shown in FIG. When the slit is formed in a ring shape, the slit may be formed in an elliptical ring shape, a square ring shape such as a square shape, or the like. Furthermore, a large number of small linear or curved deep groove slits may be appropriately arranged. When the deep groove slit is formed along the length direction or width direction of the wooden substrate, the deep groove slit does not necessarily have to be continuous along the length direction or width direction. Are intermittently arranged and substantially 1
A deep groove-shaped slit of a book may be formed.

The deep groove-shaped slit 8 is usually formed in a substantially square groove shape, and its size is not limited. However, the slit depth a is about 50 to 80% of the thickness b of the wooden substrate 6, 8 has a slit width c of about 1 to 8 mm, particularly 2 to 5 m
m, interval d between adjacent slits 8 is 5 to 100 m
m, especially about 10 to 50 mm is appropriate in terms of sound insulation (see FIGS. 3 and 4). In addition, when the slit 8 is formed along the length direction of the wood-based substrate 6 and along the width direction, the length of the slit 8 is 70 to 70 times the length or width of the wood-based substrate 6. About 100% is appropriate in terms of sound insulation.

In the present invention, the deep groove slit 8 formed in the wooden substrate 6 is filled with foamed plastic or foamed rubber 10. The material of the foamed plastic or foamed rubber 10 is not particularly limited, and for example, any material selected from foamed polystyrene, foamed polyethylene, foamed polyurethane, foamed polyvinyl chloride, foamed natural rubber, foamed synthetic rubber, and the like can be used. In this case, the method of filling the slit 8 with the foamed plastic or the foamed rubber 10 is not limited, and the foamed plastic or the foamed rubber formed in a predetermined shape may be pushed into the slit 8.
The foam may be foamed in the slit 8, but the latter method is preferable in terms of improvement in productivity and the fact that the foamed plastic or foamed rubber can be filled in the slit 8 without gaps.

In the present invention, a buffer plate 12 is fixed to the back surface of a wooden substrate 6 in which a slit 8 is filled with foamed plastic or foamed rubber 10. The material of the buffer plate 12 is not limited, and any material may be used as long as it can absorb the sound propagating through the wooden substrate 6 and the sound generated from the wooden substrate 6, such as a plastic sheet, a foamed plastic sheet, and a rubber sheet. And a foamed rubber-based sheet can be suitably used. The length and width of the buffer plate 12 may be the same as the length and width of the wooden substrate 6. Further, it is appropriate that the thickness of the buffer plate 12 be about 2 to 6 mm in terms of sound insulation. The wood substrate 6 and the buffer plate 12 can be fixed using a known adhesive.

[0014]

The sound-insulating floorboard of the present invention can be manufactured by a simple manufacturing process, and when the floor is impacted, the floor is not partially dented and the floor is noisy. It is hardly generated and has excellent sound insulation.

[Brief description of the drawings]

FIG. 1 is a plan view showing a sound insulating floor panel according to an embodiment of the present invention.

FIG. 2 is a bottom view of a wooden substrate used for the sound insulating floor panel.

FIG. 3 is an enlarged cross-sectional view of the sound insulating floor panel taken along the line [III-III] of FIG.

FIGS. 4A to 4C are partial bottom views of a wood-based substrate, each showing an example of a deep groove slit.

[Explanation of symbols]

 Reference Signs List 2 sound insulation floor board 4 surface 6 wood substrate 8 deep groove slit 10 foamed plastic or foam 12 cushioning board

Claims (2)

[Claims] 1. A wooden substrate having a decorative surface formed with a plurality of deep groove-shaped slits from the back surface thereof, wherein the slits are filled with foamed plastic or foam rubber, and the back surface of the wooden substrate. A sound-insulating floor panel, wherein a shock-absorbing panel is fixed to the floor panel. 2. A plurality of deep groove slits formed along the length direction of the wooden substrate, a plurality of deep groove slits formed along the width direction of the wooden substrate, or a plurality of deep groove slits. 2. The sound insulating floor panel according to claim 1, wherein the floor panel comprises a plurality of deep groove-shaped slits crossing the floor.