JP3023938U - Soundproof floor structure - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To provide a soundproof floor structure for absorbing a reflected sound such as a shoe sound of a flooring floor in a quiet building such as an art museum to form a quiet space. SOLUTION: A sound insulation layer 2 and a vibration isolation layer 1 are laminated on a concrete floor 6 of a floor base material with an adhesive 3 interposed therebetween, and a flooring board 4 of ordinary attachment or herringbone attachment is laid thereon.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a soundproof floor structure suitable for absorbing a reflected sound such as a shoe sound from a flooring floor of a building to form a quiet space.

[0002]

[Prior art]

 For example, when walking on a wooden flooring board with leather shoes, etc., high-pitched shoe sounds may be reflected. Especially, in a quiet atmosphere such as in a museum, shoe noise becomes noise. Therefore, soundproof flooring floors have been adopted for the floors of buildings where there is a greater need to reduce reflected noise. Japanese Utility Model Application Laid-Open No. 63-119740 shows an example of a known technique for a soundproof floor structure having a laminated structure. This soundproof floor structure discloses a soundproof base material having a sound insulating layer on the upper surface side of a flooring board and a vibration insulating layer on the lower surface side.

[0003]

[Problems to be solved by the device]

 When the above-mentioned known sound-insulating base material is used by being adhered onto a concrete floor, there is a problem that the sound-insulating layer is worn on the floor top surface and the sound-insulating layer is worn or deteriorates due to secular change. Further, when this soundproofing base material is used as a base for a wooden floor, there is a problem that it becomes a multi-layered floor structure and becomes expensive.

The present invention solves the above problems and has no wear or secular change, and therefore has almost no deterioration in sound insulation performance, and can absorb reflected sound such as shoe sound to form a quiet space. The purpose is to provide a soundproof floor structure.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention constitutes a soundproof floor structure in which a sound insulation layer and a vibration isolation layer are laminated on a floor base, and a flooring board is stacked on the sound insulation layer and the vibration isolation layer. Further, the flooring board is characterized in that it is a normal attachment including a checkered one or a herringbone attachment.

When walking on the flooring board with leather shoes or the like, the impact sound is attenuated from the back surface of the flooring board by the vibration isolation layer, and the attenuated sound wave is further absorbed by the sound insulation layer. Therefore, since almost no impact sound is transmitted to the floor surface, almost no reflected sound is generated. That is, the impact sound is almost completely absorbed.

[0007]

[Embodiment of device]

 Hereinafter, a soundproof floor structure according to the present invention will be described in detail with reference to the drawings. FIG. 1 shows a soundproof floor structure of the present invention when a normally attached flooring board 4 is adopted. As shown in the figure, the soundproof floor structure comprises a concrete floor 6 which is the lowest floor floor, a sound insulation layer 2, a vibration isolation layer 1 and a flooring board 4 which are sequentially stacked on the concrete floor 6. The sound insulation layer 2 is attached to the concrete floor 6 via the adhesive 3.

The sound insulation layer 2 absorbs impact sound such as footsteps. For example, it is made by composite processing by stacking urethane chips of about 3 [mm] on the back surface of plywood with a thickness of about 15 [mm]. Become. As the adhesive for attaching the sound insulation layer 2 to the concrete floor 6, for example, an epoxy adhesive and a concrete nail are used together.

The vibration-damping layer 1 has a function of suppressing the production of footsteps and the like on the flooring board. For example, a vibration-damping sheet having a heat resistance, which is made of a rubber-based material, has a wide loss coefficient by a special composition. Consists of. A non-woven fabric is attached to the floor surface. The thickness is, for example, about 1 [mm].

The flooring board 4 is made of, for example, a wood veneer having a thickness of about 20 mm or a surface on which a decorative vinyl chloride resin sheet is attached. As shown in FIG. 1 and FIG. 2, the flooring board 4 that is normally attached is constructed by laying rectangular or rectangular single plates 8 adjacent to each other on the vertical axis. Are connected to each other by being fitted into the fitting recesses 7, so that the surface side thereof is kept on the same plane and no gap is formed between the adjacent single plates.

FIG. 3 shows a flooring board 4a attached with a herring board. The flooring board 4a is a combination of strip-shaped single pieces 9 in a mountain shape as shown in the figure, and has a beautiful design.

Next, a procedure for constructing the soundproof floor structure having the above structure will be briefly described. The soundproof floor structure of the present invention is a direct attachment method in which the sound insulation layer 2, the vibration isolation layer 1 and the flooring board of the present invention are directly attached to the upper surface of the concrete floor 6, so that the concrete floor 6 is made to be uneven. . For this reason, the sticking surface of the concrete floor 6 is leveled to make it uneven for about 2 [mm] per 1 [m 2]. Next, after the adhesive 3 is applied to the pasting surface, the urethane cushion side of the sound insulation layer 2 is pasted to the concrete floor 6 side. In addition, the concrete floor 6 should be sufficiently dried to prevent slamming, floor squeaking, and peeling after construction. Further, the concrete nail of the adhesive 3 is not applied to the entire surface of the adhesive, but only the four corners are provided to prevent excessive solidification. Next, check the sound insulation layer 2 for rattling, and if there is rattling, fix the part with concrete nails. Next, the vibration damping layer 1 is applied on the sound insulation layer 2. The vibration-damping layer 1 is pressed against the sound-insulating layer 2 with the non-woven fabric side facing upward to be polymerized. Finally, the above-mentioned single plates 8 are arranged on the vibration-damping layer 1 to form the flooring board 4 which is normally attached or herringbone-attached.

When walking with leather shoes or the like on the flooring board 4 having the soundproof floor structure of the laminated structure as described above, an impact sound is generated due to the collision between the flooring board 4 and the leather shoes or the like. This sound wave is transmitted from the back surface of the flooring board 4 to the anti-vibration layer 1 and attenuated, and then enters the sound insulation layer 2 and is absorbed. Therefore, almost no waves are transmitted to the concrete floor 6 side. Therefore, the reflected sound from the concrete floor 6 is hardly generated. Therefore, the impact noise is eliminated, and annoying shoe noise is not generated.

The soundproof floor structure of the present invention comprises a two-layer structure in which the sound insulation layer 2 and the vibration isolation layer 1 are formed between the concrete floor 6 and the flooring board 4, and is not a multilayer structure, so the flooring board. 4 does not adversely affect the surface quality. Although there are various types of quality standards for the flooring board 4, surface bending, warpage, twisting, gaps, cracks, etc. are important quality standards. It has been confirmed that the soundproof floor structure of the present invention can realize the formation of the flooring board 4 which satisfies these quality standards.

In the above description, an example of the configuration content of the soundproof layer 1 and the sound insulation layer 2 is shown, but of course, the present invention is not limited to this. Moreover, the floor base is not limited to the concrete floor 6. Further, the flooring board 4 is not limited to the normal attachment or the herringbone attachment.

[0016]

[Effect of device]

 According to the present invention, the following remarkable effects are obtained. 1) The impact sound applied to the flooring board is absorbed by the sound insulation layer and the sound insulation layer, and the reflected sound from the floor surface hardly occurs, so that the flooring board hardly produces sound. 2) Since the sound insulation layer and anti-vibration layer are formed on the bottom surface of the concrete board, there is no wear or secular change, and almost no deterioration in sound absorption performance occurs. 3) The two-layer structure of the sound insulation layer and the vibration isolation layer does not adversely affect the surface quality of the flooring board. 4) The construction is simple and applicable to various buildings.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing the overall structure of a soundproof floor structure of the present invention having a flooring board that is normally attached.

FIG. 2 is a top view of FIG.

FIG. 3 is a top view showing a flooring board with herringbone attached.

[Explanation of symbols]

 1 Anti-Vibration Layer 2 Sound Insulation Layer 3 Adhesive 4 Flooring Board 4a Flooring Board 5 Projection Piece 6 Concrete Floor 7 Fitting Recessed Section 8 Single Plate 9 Single Piece

Claims (2)

[Scope of utility model registration request] 1. A soundproof floor structure comprising a sound insulating layer and a vibration insulating layer laminated on a floor material, and a flooring board stacked on the sound insulating layer and the vibration insulating layer. 2. The soundproof floor structure according to claim 1, wherein the flooring board is made of a normal attachment including a checkerboard or a herringbone attachment.