JPH10306536A - Soundproof floor material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the soundproof and vibration control effect of a soundproof floor material and secure good walking feeling by forming a buffer material laminated on the back side of a wooden plate with a base plate made of an elastic material and protruded with many conical lugs on the back face. SOLUTION: A decorative wooden veneer is stuck on the upper face of a wooden plate 4 to form a decorative plate, and a buffer material 3 is stuck on the back face of the decorative plate 2 to form a soundproof material 1. The buffer material 3 made of an elastic material is constituted of a base plate 5 and many conical lugs 6 arranged at the prescribed uniform interval and integrally protruded to the height equal to the floor thickness from the back face. When the soundproof floor material 1 is installed with the lugs 6 of the buffer material 3 kept in contact with a floor board, the shock energy applied from the decorative plate 2 side is absorbed by the elasticity of the conical lugs 6 of the buffer material 3 and the air layer between the lugs 6, then it is transferred to the floor board side. Many lugs 6 of the buffer material 3 are wholly sunk while the conical shapes are invariably maintained, the shock energy is effectively absorbed, a sufficient soundproof and vibration control effect can be obtained, and good walking feeling can be secured.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soundproof floor material laid on a floor for soundproofing and vibration proofing in an apartment house or a detached house.

[0002]

2. Description of the Related Art As a conventional sound-insulating flooring of this type, for example, one disclosed in Japanese Patent Application Laid-Open No. 4-118458 is known. As shown in FIG.
Has a multilayer structure in which a wooden board 52 made of a plywood or the like on the front side, a nonwoven fabric 53 on the back side thereof, and a cushioning material 54 on the back side thereof are laminated and bonded. The cushioning member 54 is composed of a base plate 55 made of rubber or the like and a number of columnar projections 56 projecting from the back surface thereof.

[0003] A large number of such soundproof flooring materials 51 are laid on, for example, a floor slab F (see Fig. 3) with the wooden board 52 facing upward. When an impact is applied to the surface of the wooden board 52 as shown by the arrow, the impact energy is first absorbed by the nonwoven fabric 53, and the elasticity of the many projections 56 of the cushioning material 54, that is, It is absorbed by the cushioning material 54 by an air layer or the like formed therebetween.
As a result, the impact energy applied to the surface of the wooden board 52 is transmitted to the floor slab F after being absorbed by the nonwoven fabric 53 and the cushioning material 54, so that a soundproofing and vibrationproofing effect is obtained. In addition, the elasticity (cushioning property) of the projection 56 ensures an appropriate walking feeling.

[0004]

However, according to the conventional flooring material 51, when a large impact force or an oblique impact is applied to the wooden board 52, the impact is caused by the impact shown in FIG.
As shown in (1), the columnar projection 56 may be bent (buckled) from the middle. When this bending occurs, the projection 56 is less likely to be deformed, and the sinking is insufficient, so that impact energy cannot be sufficiently absorbed and walking feeling deteriorates.

On the other hand, in order to prevent such bending of the projection 56, it is conceivable to increase or decrease the diameter of the projection 56. However, in that case, the protrusion 56
Does not occur, but the rigidity of the projection 56 itself is increased, so that the projection 56 is still insufficiently submerged,
The impact energy cannot be sufficiently absorbed, and the walking feeling deteriorates. As described above, in the conventional soundproofing floor material 51, the deformation behavior of the columnar projection 56 due to the impact varies depending on the thickness and length thereof, the magnitude and direction of the impact, and the like. Accordingly, it is difficult to stably obtain a sufficient soundproof / vibration-proof effect and a good walking feeling.

SUMMARY OF THE INVENTION The present invention has been made to solve such problems, and provides a sufficient soundproofing / vibrationproofing effect and a good walking sensation regardless of the magnitude and direction of impact and the floor thickness. It is an object of the present invention to provide a soundproof flooring material that can be obtained by performing the above steps.

[0007]

In order to achieve this object, a sound-insulating flooring material according to the present invention comprises a wooden board on the front side and a cushioning material laminated on the back side, and the cushioning material is made of an elastic material. , And has a base plate and a number of conical protrusions protruding from the back surface thereof.

According to this soundproof flooring material, when an impact is applied to the surface of the wooden board, the impact energy is:
It is absorbed by the cushioning material due to the elasticity or sinking of the conical projections of the cushioning material and the air layer formed between the projections. In particular, in this soundproof flooring, the projection is formed in a conical shape, so that even when a large impact force or an oblique impact is applied to the wooden board, the projection does not bend (buckle). Compressive deformation and sinking while keeping the conical shape, that is, while maintaining elasticity. More specifically, when the impact force is small, the tip of the projection mainly sinks, and when the impact force is large, the entire projection sinks, thereby reducing the impact energy according to the magnitude. Absorbs it.

Further, even if the diameter and height of the bottom of the projection are changed,
Since the conical shape is stably maintained, even when the design floor thickness changes, it is possible to easily cope with it simply by simply changing the height of the projections and the like. As described above, according to the soundproof flooring material of the present invention, regardless of the magnitude and direction of the impact and the floor thickness, the large number of projections of the cushioning material maintain the conical shape at all times, and By absorbing the impact energy, it is possible to stably obtain a sufficient soundproofing / vibration-proofing effect and secure a good walking feeling.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, a soundproof flooring according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. FIG. 1 shows a soundproof flooring to which the present invention is applied.
This soundproofing flooring 1 includes a decorative panel 2 (wood board) on the front side,
It has a two-layer structure consisting of a cushioning material 3 bonded to the back surface.

The decorative board 2 is formed by bonding a decorative veneer, a vinyl chloride board, a urethane impregnated paper (not shown), or the like to the upper surface of a wooden board 4 made of wood plywood, particle board, solid board, or the like. , Finished.

The cushioning member 3 is made of an elastic material such as rubber or foamed resin (for example, urethane foam).
It is composed of a number of projections 6 projecting integrally from the back surface. These projections 6 are arranged at predetermined regular intervals on the base plate 5. Each projection 6 is formed in a conical shape with the base plate 5 side as a bottom, and has a predetermined height corresponding to the floor thickness. Have.

[0013] A large number of soundproof flooring materials 1 constructed as described above.
For example, on a floor slab (not shown) such as a slab of a building,
It is laid with the decorative board 2 side facing upward and the projections 6 of the cushioning material 3 in contact with the floor slab. In this laid state, when an impact is applied to the surface of the soundproof flooring material 1, that is, to the decorative panel 2, the impact energy is generated by the elasticity of the conical projections 6 of the cushioning material 3, that is, the sinking, After being absorbed by the cushioning material 3 by the air layer or the like formed in the slab, it is transmitted to the floor slab side. In particular, in this soundproof flooring 1,
Since the projection 6 is formed in a conical shape, even when a large impact force or an oblique impact is applied to the decorative plate 2, the projection 6 does not bend (buckle) and has a conical shape. It compresses and deforms and sinks while keeping it constantly, that is, while maintaining its elasticity. More specifically,
When the impact force is small, the tip of the projection 6 mainly sinks, and when the impact force is large, the entire projection 6 sinks, thereby efficiently absorbing the impact energy according to the magnitude. .

Further, even if the diameter and height of the bottom of the projection 6 are changed, the conical shape is stably maintained. Therefore, even when the design floor thickness changes, the height of the projection 6 is correspondingly changed. It is possible to easily cope with them simply by changing the size and the like, thereby increasing the degree of freedom in design. As described above, according to the soundproof flooring 1 of the present embodiment, regardless of the magnitude and direction of the impact and the floor thickness, the large number of projections 6 of the cushioning material 3 always keep their conical shape. By sinking as a whole, the impact energy can be efficiently absorbed, so that a sufficient soundproofing and vibration-proofing effect can be obtained stably, and a good walking feeling can be ensured.

The present invention is not limited to the above-described embodiment, but can be implemented in various modes. For example, in the above-described embodiment, the protrusion 6 of the cushioning member 3 has a conical shape, but may have a pyramid shape, for example, a hexagonal pyramid shape, whereby a similar effect can be obtained. . Further, the soundproof flooring material 1 of the embodiment has a two-layer structure of the decorative board 2 and the cushioning material 3, but another suitable board material is provided between the decorative board 2 and the cushioning material 3 and / or It may be added to the back side or the like. In addition, the configuration of the details can be appropriately changed within the scope of the present invention.

[0016]

As described above in detail, the soundproof flooring material of the present invention can obtain a sufficient soundproofing / vibrationproofing effect and a good walking feeling irrespective of the magnitude and direction of the impact and the floor thickness. It has effects such as being able to.

[Brief description of the drawings]

FIG. 1 is a partial perspective view of a sound-insulating flooring according to an embodiment of the present invention as viewed from the back side.

FIG. 2 is a partial perspective view similar to FIG. 1 of a conventional soundproof flooring material.

FIG. 3 is a side view schematically showing a behavior when an impact is applied to the conventional soundproof floor material of FIG. 2;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Soundproof floor material 2 Decorative board 3 Buffer material 5 Base board 6 Projection

Claims (1)

[Claims] 1. A wooden plate material on the front side and a cushioning material laminated on the back side, the cushioning material being made of an elastic material, a base plate, and a number of conical protrusions protruding from the back surface. And a sound-insulating flooring material.