JPH0610491A - Soundproof floor equipped with buffer layer - Google Patents

Abstract

PURPOSE:To reduce the extent of a floor impact noise due to a light weight impact source in a long joist high floor type soundproof floor by installing a buffer layer in space between a bedding floorboard and a finishing floorboard. CONSTITUTION:A sleeper 4 consisting of wood, laminated wood, etc., and a framework being composed of a long joist 5 consisting of wood, laminated wood or the like are set up on a floor slab 1 via vibro-proofing rubber. Next, a bedding floorboard 3 consisting of a veneer board, a particle board or the like is stuck on the framework. In succession, a finishing floorboard 2 consisting of plywood, flooring or the like is stuck onto the bedding floorboard via a buffer layer 8 consisting of a rubber mat, a soft resin mat or the like. In addition, this buffer layer 8 absorbs any possible impact exciting force to be added to the finishing floorboard 2 in space between both upper and lower living rooms. With this constitution, a floor impact noise due to a light weight impact source is thus reducible.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a long floor joist high floor soundproof floor in which a floor impact sound between the upper and lower parts of a living room is reduced by providing a buffer layer between a base floor board and a finishing floor board.

[0002]

2. Description of the Related Art Conventionally, as a floor structure for a living room in a building,
As shown in FIG. 1, a floor slab 1 of a building frame is used to receive a base floor plate 3 and a finishing floor plate 2 by means of a shaft assembly consisting of a large pull 4 and a long joist 5 and the shaft assembly via a vibration-proof rubber 6. There is a long floor joist raised floor soundproof floor that is supported by vibration isolation to form a floating floor.
The anti-vibration rubber 6 of the soundproof floor is installed on the beam or near the wall, which has high rigidity and is easy to vibrate, while avoiding the vicinity of the central portion of the floor slab, which has low rigidity and is easily vibrated.

However, in such a soundproof floor, the floor impact sound is reduced only by the anti-vibration rubber 6 installed on the support portion of the floor plate, so that the floor impact sound caused by a light-weight impact source that is generated on a daily basis is particularly soundproofed. In many cases, the effect was not sufficient.

[0004]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an improved soundproof floor capable of effectively reducing the floor impact sound due to the light weight impact source in the long joist raised floor soundproof floor. To do.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a floor plate is received on a floor slab of a building frame by a shaft assembly consisting of Daihiki and long joists, and the shaft assembly is supported by a vibration-proof rubber for vibration-proof support. The present invention relates to a long floor joist high-floor sound-insulating floor having a floating floor, wherein a buffer layer is provided between a base floor plate and a finishing floor plate.

The present invention will be specifically described below with reference to FIGS. 2 and 3.

In FIG. 2, reference numerals 1 to 7 are the same members as in FIG. That is, on the floor slab 1, via a vibration-proof rubber 6, there is arranged a frame composed of a large pull 4 made of wood, a laminated material or the like and a long joist 5 made of wood, a laminated material or the like.
The shaft assembly is tightly connected with a fastener or the like. Base floorboard 3 consisting of plywood, particle board, etc. on the framework
Is attached, and a finishing floorboard 2 made of a decorative plywood, flooring, etc. is attached on the base floorboard 3, and an underfloor space 7 is formed below the base floorboard 3.

A feature of the present invention is that a buffer layer 8 is interposed between the finishing floor plate 2 and the base floor plate 3. Examples of the material forming the buffer layer 8 include rubber mats such as natural rubber and styrene-butadiene rubber, low density polyethylene, soft polyvinyl chloride resin, soft resin mats such as thermoplastic elastomer, low density polyethylene, soft polyvinyl chloride, and pol Soft foam mat such as urethane, non-woven fabric,
A material having a high vibration absorption effect and durability, such as a woven cloth or a fiber mat (organic or inorganic) such as a woven cloth, is used.
It is generally preferable to provide these buffer layers 8 so as to cover almost the entire floor area, but the material can be changed depending on the location. Further, the thickness of the buffer layer 8 is appropriately selected according to its material, shock absorbing property, impact strength to be considered, and the like.

The cushioning layer 8 of the present invention is inexpensive as a material and can be easily installed, and absorbs the impact excitation force applied to the finishing floor plate between the upper and lower parts of the living room,
Particularly, floor impact sound due to a lightweight impact source can be effectively reduced.

FIG. 3 shows the effect of the soundproof floor of the present invention due to the light-weight impact source in comparison with the conventional method. When ○ is shown, the floor impact sound level in the conventional soundproof floor is shown. The floor impact sound level of the present invention when an impact is generated is indicated by ●. As is clear from the figure, the sound insulation floor of the present invention exhibits a high sound insulation effect in a wide frequency range.

[0011]

The soundproof floor of the present invention is provided with a buffer layer made of an inexpensive and easy-to-handle material, and in particular, it can effectively reduce the floor impact sound due to a lightweight impact source. Can bring a comfortable living environment.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a conventional soundproof floor.

FIG. 2 is a sectional view showing a soundproof floor of the present invention.

FIG. 3 is a diagram showing a comparison of the soundproof effect between the soundproof floor of the present invention and the conventional soundproof floor.

[Explanation of symbols]

 1 Floor slab 2 Finished floor board 3 Base floor board 4 Daihiki 5 Long joist 6 Anti-vibration rubber 7 Underfloor space 8 Buffer layer

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshikazu Takei 2-19-1 Tobita-cho, Chofu-shi, Tokyo Inside Kashima Construction Co., Ltd. Technical Research Institute (72) Masanori Tano 2-1-1, Tobita, Chofu-shi, Tokyo No. Kashima Construction Co., Ltd. Technical Research Institute (72) Inventor Noriyoshi Maruyama No. 19-1 Tobita Supply, Chofu City, Tokyo Kashima Construction Co., Ltd. Technical Research Laboratory (72) Inventor Takao Yamamoto 4-8 Nishidai, Itabashi-ku, Tokyo 20-413 (72) Inventor Hiroaki Uesaka 5-6-2-301 Kamisuruma, Sagamihara City, Kanagawa Prefecture (72) Tatsuya Iwami 1-3-47-4 Uenodai, Kamifukuoka City, Saitama Prefecture (72) Inventor Shuji Hara 20-7 Otaniguchikitamachi, Itabashi-ku, Tokyo

Claims (1)

[Claims] 1. A long structure in which a floor plate is received on a floor slab of a building frame by a shaft assembly composed of large pulls and long joists, and the shaft assembly is vibration-supported via a vibration-proof rubber to form a floating floor. The joist raised floor type soundproof floor is characterized in that a buffer layer is provided between the base floorboard and the finished floorboard.