JP4172892B2 - Floor structure - Google Patents

Floor structure Download PDF

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Publication number
JP4172892B2
JP4172892B2 JP37419499A JP37419499A JP4172892B2 JP 4172892 B2 JP4172892 B2 JP 4172892B2 JP 37419499 A JP37419499 A JP 37419499A JP 37419499 A JP37419499 A JP 37419499A JP 4172892 B2 JP4172892 B2 JP 4172892B2
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Prior art keywords
floor
floor base
base panel
thickness
cushion rubber
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JP2001182212A (en
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友久 長山
久実子 小原
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Bridgestone Corp
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Bridgestone Corp
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Description

【０００１】
【発明の属する技術分野】
この発明は、床下地パネルをコンクリートスラブなどの床基盤から所定の高さに支持脚で支持し、これら床下地パネル上に捨張板を貼り付け、捨張板上に仕上材を貼り付けた床構造に関する。
【０００２】
【従来の技術】
従来のこの種の床構造としては、図１２及び図１３に示すように、正方形状の床下地パネル１００の下面の四隅と中心に５本の支持脚１０１を取付け、この支持脚１０１は支持ボルト１０１Ａと下端のクッションゴム１０１Ｂとから成り、これら床下地パネル１００をコンクリートスラブなどの床基盤１０上に敷き並べ、床下地パネル１００上に捨張板１０２を貼り付け、この捨張板１０２の上に仕上材１０３を貼り付けていた。
【０００３】
また、他の従来例としては、図１４及び図１５に示すように、支持脚１０１を床下地パネル１００に直接取付けず、受板１０４を介して支持脚１０１で床下地パネル１００を支持するようにしたものである。
【０００４】
【発明が解決しようとする課題】
図１２及び図１３に示す従来例は、例えば床下地パネル１００の大きさを９１０×９１０（ｍｍ）とし、厚さ２０ｍｍのパーティクルボードを使用し、捨張板１０２としては厚さ１２ｍｍの合板を用い、仕上材１０３としては厚さ１２ｍｍの３０３×１８２０（ｍｍ）の木質仕上材を用いて構成される。そして、クッションゴム１０１Ｂのばね定数は１５０±５０Ｎ／ｍｍ程度としていた。また、図１４及び図１５に示す従来例では、床下地パネル１００として厚さ２０ｍｍで６００×１８２０（ｍｍ）の大きさのパーティクルボードを使用し、支持脚１０１は、床下地パネル１００の長手方向に約４５５ｍｍピッチで設けられ、クッションゴム１０１Ｂのばね定数は１５０Ｎ／ｍｍ程度のものを用い、仕上材１０３は先の従来例と同様のものを用いて構成される。このような従来の床構造では、クッションゴム１０１Ｂの存在により支持脚１０１からの振動伝播は低く抑えられ、２５０Ｈｚ以上の周波数帯域には高い遮音効果があった。特に軽量衝撃音（ＬＬ）の低減には有効であった。しかしながら、衝撃力が大きく、床の変位量が大きくなる重量衝撃音（ＬＨ）においては、クッションゴム１０１Ｂのばね定数が低く、床下地パネル１００の曲げ剛性も低いので、衝撃力を受けた際の床（仕上材、捨張板、床下地パネル）の振幅が大きくなり、空気伝播音の影響により６３Ｈｚ以下の周波数帯域においてコンクリートスラブ（床基盤）の遮音性能よりも低下する場合があった。また、ばね定数が低いことから床剛性が低下し、歩行時の感触が悪く（床が柔らかい）、人の歩行時にテーブル、家具などがゆれる等の不具合を招いていた。さらに、床先行工法で間仕切りよりも先に床を施工する場合には、間仕切りを設置する場所には（沈みによる床鳴り防止のため）高いばね定数を有する（剛性の高い）支持脚を設置しなければならなかった。この方法では、施工時に予め間仕切りの施工位置を確認し、決められた位置に補強を行う手間が発生していた。また、入居者が間取りの変更を行う場合、床を解体せずに間仕切り位置の変更を行うための有効な補強方法がなく、一部床の解体を行い補強を行う必要があった。
【０００５】
そこで、この発明は、軽量のみならず重量衝撃音遮断性能を高め、使用感の面でも家具の揺れなどを生じ難く、床先行工法において自由な間取り変更に容易に対応できるようにした床構造を提供することを目的とする。
【０００６】
【課題を解決するための手段】
上述の目的を達成するため、この発明は、所定の大きさの床下地パネルを複数のクッションゴム付支持脚で支持して床基盤上に敷き並べ、これら床下地パネル上に捨張板を貼り付け、捨張板上に仕上材を貼り付け、あるいは捨張板を用いずに床下地パネル上に直接仕上材を貼り付けた床構造において、床下地の剛性を最も弱いところで３５０Ｎ／ｍｍ／φ８０以上とし、捨張板又は床下地パネルと仕上材との間に周波数帯域１２５Ｈｚ以上において減衰効果の高い緩衝体を設け、支持脚のクッションゴムを床基盤に固着し、前記クッションゴムのバネ定数を２００〜５００Ｎ／ｍｍとし、前記クッションゴムを１０〜１１個／ｍ 2 使用したものである。
【０００７】
【発明の実施の形態】
以下に、この発明の好適な実施例を図面を参照にして説明する。
【０００８】
図１及び図２に示す実施例では、所定の大きさの床下地パネル１を複数のクッションゴム２Ｂ付の支持脚２で支持して床基盤１０上に敷き並べるようにしてある。床下地パネル１上には捨張板３を貼り付け、この捨張板３上に緩衝体４を設け、この緩衝体４上に仕上材５を貼り付けてある。ここで用いた床下地パネル１は、厚さ２０ｍｍで９１０×９１０（ｍｍ）の大きさのパーティクルボードを用いた。この床下地パネル１の下面に取付けた支持脚２は図２に示すように９本とした。支持脚２は支持ボルト２Ａとその下端に設けたクッションゴム２Ｂとから成るものであり、クッションゴム２Ｂのばね定数は、２００〜５００Ｎ／ｍｍのものを用いた。また、捨張板３は厚さ１２ｍｍの合板を用いた。緩衝体４としては、厚さ５ｍｍの低発泡ウレタンフォームを用いた。仕上材５としては、従来例で用いたと同様の木質仕上材を用いた。
【０００９】
この図１及び図２に示す実施例では、ばね定数の高いクッションゴム２Ｂを用いることと、１枚の床下地パネル１に設ける支持脚２の本数を増やすことにより、床全体の剛性が従来のものに比べて高くなる。この実施例において最も弱いところで床下地の剛性が３５０Ｎ／ｍｍ／φ８０以上となった。緩衝体３は、周波数帯域１２５Ｈｚ以上において減衰効果の高いものである。なお、支持脚２のクッションゴム２Ｂを床基盤１０に接着剤などにより固着しておくことにより、重量衝撃力を受けた際の床の振幅を抑え、空気伝播音の悪影響を防ぐことができる。この図１及び図２に示す実施例における床下地の剛性は、先にも述べたように最も弱い個所において３５０Ｎ／ｍｍ／φ８０以上であったが、図１２及び図１３に示す従来例では、２００〜３００Ｎ／ｍｍφ８０程度であった。
【００１０】
図３及び図４に示す他の実施例では、支持脚２の本数は従来と同様に５本とし、床下地パネル１の厚みや大きさも先の実施例と同様とした。しかしながら、この実施例では捨張板３の厚さを２５ｍｍとし、パーティクルボードを用いた。これにより、床下地パネル１と捨張板３とが構成する床下地の剛性を最も弱いところで３５０Ｎ／ｍｍ／φ８０以上とした。
【００１１】
図５に示すさらに別の実施例では、床下地パネル１の厚さを従前の２０ｍｍから２５ｍｍと厚くした。他の構成は先の実施例と同様である。この実施例でも、支持脚２は５本用いた。
【００１２】
図１ないし図５に示すいずれの実施例においても、床下地パネル１と捨張板３とにより構成される床下地の剛性を従来よりも高めるため、支持脚２の本数を増やす或いはクッションゴム２Ｂのばね定数を高くする。さらには床下地パネル１或いは捨張板３の厚さを増大させることなどにより実現できる。床下地の剛性は、床板（床下地パネル１と捨張板３）の曲げ剛性（Ｋ1）とクッションゴム２Ｂのばね定数（Ｋ2）の複合で決まる。Ｋ1を大きくするには、床下地パネル１の厚さを厚くし或いは捨張板３の厚さを厚くする。Ｋ2を大きくするには、１個当りのばね定数を大きく、すなわち硬くするか、クッションゴム２Ｂの単位面積当りの数量を多くすることにより行える。クッションゴム２Ｂの個数は、１０〜１１個／ｍ2の範囲が好ましい。このように板材の厚みやクッションゴム２Ｂの硬さや数などを組合せることにより、床下地の剛性を高める方法は多数存在する。どのような組合せを取るかに関わらず、床下地の剛性として、３５０Ｎ／ｍｍ／φ８０以上とするようにする。そして、床下地の剛性を高くした結果、１２５Ｈｚ以上の周波数帯域で遮音性能が悪化する場合があるため、緩衝体４を設ける。
【００１３】
図６及び図７に示すさらに別の実施例では、図１４及び図１５に示す従来例と同様の厚さ及びサイズを有する床下地パネル１を用いたが、支持脚２を床下地パネル１の長手方向中心線上に一列増設することにより床下地の剛性を高めたものである。クッションゴム２Ｂのばね定数は２００〜５００Ｎ／ｍｍのものが好適に使用できる。また、床下地パネル１の上には捨張板３を設けずに直接緩衝体４を設けてある。この緩衝体４としては厚さ１０ｍｍの発泡ゴムシートを用いた。
【００１４】
図８及び図９に示す別の実施例では、支持脚２の本数を増やさずに、床下地パネル１の厚さを厚くした。すなわち、この実施例における床下地パネル１の厚さは３０ｍｍとした。またクッションゴム２Ｂのばね定数は３００Ｎ／ｍｍとした。
【００１５】
なお、間仕切りは、通常図１に示す実施例では捨張板３上に設けられ、図６以下の実施例では床下地パネル１上に設けられる。そのため、この発明においては床下地の剛性が従来のものに比べて高く設計されているので、間仕切り設置場所に特別の補強をする必要もない。また、家具を壁際に設置した場合、人の歩行などにより加重が表面的かつ局部的な撓みとなるために（床下地剛性が高いため）、家具は揺れ難くなる。
【００１６】
上述した実施例において用いられる緩衝体４は、３〜１０ｍｍ程度の厚さの材料であって、発泡ゴムシート、発泡ウレタンフォーム、不織布、多数の突起又はリブを有する弾性シートが好適に使用できる。
【００１７】
図１０に示すグラフにおいて、図６及び図７に示す実施例の遮断性能の計測結果を符号Ａで示し、図６及び図７に示す実施例の支持脚２のクッションゴム２Ｂを床基盤１０に接着したものを符号Ｂで示し、図１４及び図１５に示す従来例を符号Ｃで示し、厚さ２００ｍｍのコンクリートスラブから成る床基盤自体の遮断性能を符号Ｄで示す。この図１０のグラフからも明らかなように、特に６３Ｈｚの周波数帯域において、この発明の実施例においてクッションゴム２Ｂを床基盤に接着したものが最も遮断性能が高い。
【００１８】
図１１に示すグラフは、軽量衝撃音遮断性能を比較した例を示し、符号ＡないしＤは図１０に示すと同様のものである。
【００１９】
なお、床下地パネル１の厚さや捨張板３の厚さを厚くすることで床剛性を高めることができるのみならず、使用する材料として同じ厚さでも高強度な材料を用いることにより床剛性を高めることもできる。
【００２０】
【発明の効果】
以上説明したように、この発明によれば、所定の大きさの床下地パネルを複数のクッションゴム付支持脚で支持して床基盤上に敷き並べ、これら床下地パネル上に捨張板を貼り付け、捨張板上に仕上材を貼り付け、あるいは捨張板を用いずに床下地パネル上に直接仕上材を貼り付けた床構造において、床下地の剛性を最も弱いところで３５０Ｎ／ｍｍ／φ８０以上とし、捨張板又は床下地パネルと仕上材との間に周波数帯域１２５Ｈｚ以上において減衰効果の高い緩衝体を設け、支持脚のクッションゴムを床基盤に固着し、前記クッションゴムのバネ定数を２００〜５００Ｎ／ｍｍとし、前記クッションゴムを１０〜１１個／ｍ 2 使用したので、重量衝撃音遮断性能ならびに軽量衝撃音遮断性能ともに向上させることができた。また、床下地の剛性が高いため人の歩行などにより家具の揺れなどを生ずることもなく、さらに自由な間取り変更に容易に対応することができる。また、支持脚のクッションゴムを床基盤に接着剤などにより固着しておくことにより、重量衝撃力を受けた際の床の振幅を抑え、空気伝播音の悪影響を防ぐことができる。
【図面の簡単な説明】
【図１】この発明の好適な実施例を示す正面断面図。
【図２】床下地パネルの裏面図。
【図３】他の実施例を示す正面断面図。
【図４】図３の床下地パネルの裏面図。
【図５】さらに他の実施例を示す正面断面図。
【図６】別の実施例を示す正面断面図。
【図７】図６における床下地パネルの裏面図。
【図８】さらに別の実施例を示す正面断面図。
【図９】図８における床下地パネルの裏面図。
【図１０】重量衝撃音遮断性能を比較したグラフ。
【図１１】軽量衝撃音遮断性能を比較したグラフ。
【図１２】従来例を示す正面断面図。
【図１３】図１２の床下地パネルの裏面図。
【図１４】他の従来例を示す正面断面図。
【図１５】図１４における床下地パネルの裏面図。
【符号の説明】
１ 床下地パネル
２ 支持脚
２Ｂ クッションゴム
３ 捨張板
４ 緩衝体
５ 仕上材
１０ 床基盤[0001]
BACKGROUND OF THE INVENTION
In the present invention, a floor base panel is supported by a support leg at a predetermined height from a floor base such as a concrete slab, and a flooring plate is pasted on the floor base panel, and a finishing material is pasted on the flooring panel. Concerning floor structure.
[0002]
[Prior art]
As a conventional floor structure of this type, as shown in FIGS. 12 and 13, five support legs 101 are attached to the four corners and the center of the lower surface of a square floor base panel 100, and these support legs 101 are support bolts. 101A and lower end cushion rubber 101B. These floor base panels 100 are laid on a floor base 10 such as a concrete slab, and a floor plate 102 is pasted on the floor base panel 100. The finishing material 103 was pasted on.
[0003]
As another conventional example, as shown in FIGS. 14 and 15, the support base 101 is not directly attached to the floor base panel 100, and the floor base panel 100 is supported by the support leg 101 via the receiving plate 104. It is a thing.
[0004]
[Problems to be solved by the invention]
In the conventional example shown in FIGS. 12 and 13, for example, the size of the floor base panel 100 is 910 × 910 (mm), a particle board having a thickness of 20 mm is used, and a plywood having a thickness of 12 mm is used as the stripping plate 102. The finishing material 103 used is composed of a wood finishing material of 303 × 1820 (mm) having a thickness of 12 mm. The spring constant of the cushion rubber 101B is about 150 ± 50 N / mm. 14 and 15, a particle board having a thickness of 20 mm and a size of 600 × 1820 (mm) is used as the floor foundation panel 100, and the support legs 101 are arranged in the longitudinal direction of the floor foundation panel 100. The cushion rubber 101B has a spring constant of about 150 N / mm, and the finishing material 103 is made of the same material as in the prior art. In such a conventional floor structure, the vibration propagation from the support leg 101 is suppressed low by the presence of the cushion rubber 101B, and a high sound insulation effect is obtained in a frequency band of 250 Hz or higher. In particular, it was effective in reducing lightweight impact sound (LL). However, in a heavy impact sound (LH) in which the impact force is large and the displacement amount of the floor is large, the spring constant of the cushion rubber 101B is low and the bending rigidity of the floor base panel 100 is also low. In some cases, the amplitude of the floor (finishing material, scraping board, floor base panel) is increased, and the sound insulation performance of the concrete slab (floor base) is lowered in the frequency band of 63 Hz or less due to the influence of air-borne sound. Further, since the spring constant is low, the floor rigidity is lowered, the feeling during walking is poor (the floor is soft), and the table, furniture and the like are swayed when walking. In addition, when the floor is constructed prior to the partition by the floor advance construction method, a support leg having a high spring constant (high rigidity) is installed at the place where the partition is installed (to prevent floor noise due to sinking). I had to. In this method, it has been necessary to confirm the construction position of the partition in advance at the time of construction, and to reinforce the determined position. Moreover, when a resident changes the floor plan, there is no effective reinforcing method for changing the partition position without dismantling the floor, and it is necessary to dismantle and reinforce part of the floor.
[0005]
Therefore, the present invention provides a floor structure that enhances not only light weight but also heavy impact sound blocking performance, is less likely to cause furniture swinging in terms of usability, and can easily cope with free floor plan change in the floor advanced construction method. The purpose is to provide.
[0006]
[Means for Solving the Problems]
In order to achieve the above-described object, the present invention supports a floor base panel of a predetermined size supported by a plurality of support legs with cushion rubber and lays it on the floor base, and pastes a strip on the floor base panel. In a floor structure in which a finishing material is pasted on a floor plate, or a finishing material is pasted directly on a floor base panel without using a ground plate, 350 N / mm / φ80 where the floor base has the weakest rigidity. As described above, a shock absorber having a high damping effect is provided between the finishing plate or the floor base panel and the finishing material, and the cushion rubber of the support leg is fixed to the floor base, and the spring constant of the cushion rubber is set. 200 to 500 N / mm and 10 to 11 cushion rubbers / m 2 are used .
[0007]
DETAILED DESCRIPTION OF THE INVENTION
Preferred embodiments of the present invention will be described below with reference to the drawings.
[0008]
In the embodiment shown in FIGS. 1 and 2, a floor base panel 1 having a predetermined size is supported by a plurality of support legs 2 with cushion rubbers 2 </ b> B and laid on the floor base 10. A floor plate 3 is attached on the floor base panel 1, a buffer body 4 is provided on the floor board 3, and a finishing material 5 is pasted on the buffer body 4. As the floor base panel 1 used here, a particle board having a thickness of 20 mm and a size of 910 × 910 (mm) was used. The number of supporting legs 2 attached to the lower surface of the floor base panel 1 is nine as shown in FIG. The support leg 2 is composed of a support bolt 2A and a cushion rubber 2B provided at the lower end thereof, and the spring constant of the cushion rubber 2B is 200 to 500 N / mm. Further, the stripping plate 3 was a 12 mm thick plywood. As the buffer body 4, a low foamed urethane foam having a thickness of 5 mm was used. As the finishing material 5, the same woody finishing material as used in the conventional example was used.
[0009]
In the embodiment shown in FIGS. 1 and 2, by using a cushion rubber 2B having a high spring constant and by increasing the number of support legs 2 provided on one floor base panel 1, the rigidity of the entire floor can be improved. Higher than the one. In this example, the floor base had a rigidity of 350 N / mm / φ80 or more at the weakest point. The buffer body 3 has a high damping effect in the frequency band of 125 Hz or higher. In addition, by fixing the cushion rubber 2B of the support leg 2 to the floor base 10 with an adhesive or the like, it is possible to suppress the amplitude of the floor when subjected to a weight impact force and to prevent the adverse effect of the air propagation sound. The rigidity of the floor base in the embodiment shown in FIGS. 1 and 2 is 350 N / mm / φ80 or more at the weakest portion as described above, but in the conventional example shown in FIGS. It was about 200 to 300 N / mmφ80.
[0010]
In the other examples shown in FIGS. 3 and 4, the number of support legs 2 is five as in the conventional case, and the thickness and size of the floor base panel 1 are the same as in the previous example. However, in this example, the thickness of the stripping plate 3 was set to 25 mm, and a particle board was used. As a result, the rigidity of the floor foundation constituted by the floor foundation panel 1 and the stripping plate 3 was set to 350 N / mm / φ80 or more at the weakest place.
[0011]
In still another embodiment shown in FIG. 5, the thickness of the floor foundation panel 1 is increased from 20 mm to 25 mm. Other configurations are the same as in the previous embodiment. Also in this example, five support legs 2 were used.
[0012]
In any of the embodiments shown in FIGS. 1 to 5, the number of support legs 2 is increased or cushion rubber 2B in order to increase the rigidity of the floor foundation constituted by the floor foundation panel 1 and the stripping plate 3 as compared with the prior art. Increase the spring constant. Further, it can be realized by increasing the thickness of the floor base panel 1 or the stripping plate 3. The rigidity of the floor foundation is determined by a combination of the bending rigidity (K 1 ) of the floor board (floor foundation panel 1 and the stripping board 3) and the spring constant (K 2 ) of the cushion rubber 2B. To increase the K 1 is thicker by increasing the thickness of the underfloor panel 1 or the thickness of the捨張plate 3. K 2 can be increased by increasing the spring constant per piece, that is, by increasing the hardness, or by increasing the quantity per unit area of the cushion rubber 2B. The number of cushion rubbers 2B is preferably in the range of 10-11 pieces / m 2 . There are many methods for increasing the rigidity of the floor base by combining the thickness of the plate material and the hardness and number of the cushion rubber 2B. Regardless of what combination is used, the floor base rigidity is set to 350 N / mm / φ80 or more. And since the sound insulation performance may deteriorate in a frequency band of 125 Hz or more as a result of increasing the rigidity of the floor base, the buffer body 4 is provided.
[0013]
In another embodiment shown in FIGS. 6 and 7, the floor foundation panel 1 having the same thickness and size as the conventional example shown in FIGS. 14 and 15 is used. The floor base rigidity has been increased by adding a line on the longitudinal center line. A cushion rubber 2B having a spring constant of 200 to 500 N / mm can be preferably used. Further, the buffer body 4 is provided directly on the floor base panel 1 without providing the stripping plate 3. A foam rubber sheet having a thickness of 10 mm was used as the buffer body 4.
[0014]
In another embodiment shown in FIGS. 8 and 9, the thickness of the floor base panel 1 is increased without increasing the number of the support legs 2. That is, the thickness of the floor foundation panel 1 in this example was 30 mm. The spring constant of the cushion rubber 2B was 300 N / mm.
[0015]
In the embodiment shown in FIG. 1, the partition is usually provided on the stripping plate 3, and in the embodiment shown in FIG. Therefore, in this invention, since the rigidity of the floor base is designed higher than the conventional one, it is not necessary to reinforce the partition installation place. In addition, when the furniture is installed near the wall, the load becomes superficial and local deflection due to walking of the person (because the floor base rigidity is high), and the furniture is difficult to shake.
[0016]
The buffer body 4 used in the above-described embodiments is a material having a thickness of about 3 to 10 mm, and a foamed rubber sheet, a foamed urethane foam, a nonwoven fabric, and an elastic sheet having a large number of protrusions or ribs can be suitably used.
[0017]
In the graph shown in FIG. 10, the measurement result of the blocking performance of the embodiment shown in FIGS. 6 and 7 is indicated by a symbol A, and the cushion rubber 2B of the support leg 2 of the embodiment shown in FIGS. The bonded material is indicated by reference symbol B, the conventional example shown in FIGS. 14 and 15 is indicated by reference symbol C, and the barrier performance of the floor base made of a concrete slab having a thickness of 200 mm is indicated by reference symbol D. As is apparent from the graph of FIG. 10, particularly in the frequency band of 63 Hz, the cushioning rubber 2B bonded to the floor base in the embodiment of the present invention has the highest blocking performance.
[0018]
The graph shown in FIG. 11 shows an example in which the lightweight impact sound blocking performance is compared, and the symbols A to D are the same as those shown in FIG.
[0019]
In addition, the floor rigidity can be increased not only by increasing the thickness of the floor base panel 1 and the thickness of the stripping plate 3, but also by using a high-strength material with the same thickness as the material used. Can also be increased.
[0020]
【The invention's effect】
As described above, according to the present invention, to support the subfloor panels of a predetermined size by a plurality of cushion gum with support legs arranged spread on the floor foundation, paste the捨張plate thereto subfloor panels In a floor structure in which a finishing material is pasted on a floor plate, or a finishing material is pasted directly on a floor base panel without using a ground plate , 350 N / mm / φ80 where the floor base has the weakest rigidity. As described above, a shock absorber having a high damping effect is provided between the finishing plate or the floor base panel and the finishing material, and the cushion rubber of the support leg is fixed to the floor base, and the spring constant of the cushion rubber is set. Since 200 to 500 N / mm and 10 to 11 cushion rubbers / m 2 were used, it was possible to improve both the weight impact sound blocking performance and the lightweight impact sound blocking performance. In addition, since the floor base has high rigidity, the furniture does not sway due to human walking or the like, and it is possible to easily deal with a free floor plan change. Further, by fixing the cushion rubber of the support leg to the floor base with an adhesive or the like, the amplitude of the floor when subjected to the weight impact force can be suppressed, and the adverse effect of the air propagation sound can be prevented.
[Brief description of the drawings]
FIG. 1 is a front sectional view showing a preferred embodiment of the present invention.
FIG. 2 is a rear view of the floor base panel.
FIG. 3 is a front sectional view showing another embodiment.
4 is a rear view of the floor base panel in FIG. 3;
FIG. 5 is a front sectional view showing still another embodiment.
FIG. 6 is a front sectional view showing another embodiment.
7 is a rear view of the floor foundation panel in FIG. 6. FIG.
FIG. 8 is a front sectional view showing still another embodiment.
9 is a rear view of the floor foundation panel in FIG. 8. FIG.
FIG. 10 is a graph comparing weight impact sound blocking performance.
FIG. 11 is a graph comparing lightweight impact sound blocking performance.
FIG. 12 is a front sectional view showing a conventional example.
13 is a rear view of the floor base panel of FIG. 12. FIG.
FIG. 14 is a front sectional view showing another conventional example.
15 is a rear view of the floor foundation panel in FIG. 14. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Floor base panel 2 Support leg 2B Cushion rubber 3 Scrape board 4 Buffer body 5 Finishing material 10 Floor base

Claims (5)

所定の大きさの床下地パネルを複数のクッションゴム付支持脚で支持して床基盤上に敷き並べ、これら床下地パネル上に捨張板を貼り付け、捨張板上に仕上材を貼り付け、あるいは捨張板を用いずに床下地パネル上に直接仕上材を貼り付けた床構造において、
床下地の剛性を最も弱いところで３５０Ｎ／ｍｍ／φ８０以上とし、
捨張板又は床下地パネルと仕上材との間に周波数帯域１２５Ｈｚ以上において減衰効果の高い緩衝体を設け、
支持脚のクッションゴムを床基盤に固着し、
前記クッションゴムのバネ定数を２００〜５００Ｎ／ｍｍとし、
前記クッションゴムを１０〜１１個／ｍ 2 使用したことを特徴とする床構造。A floor base panel of a predetermined size is supported by a plurality of support legs with cushion rubber and laid on the floor base. A flooring board is pasted on the floor base panel, and a finishing material is pasted on the floor board. Or, in the floor structure where the finishing material is pasted directly on the floor base panel without using a stripping plate,
The floor base has a weakest rigidity of 350 N / mm / φ80 or more,
A cushioning body having a high damping effect is provided in the frequency band of 125 Hz or more between the finishing plate or the floor base panel and the finishing material ,
Fix the cushion rubber of the support leg to the floor base,
The spring constant of the cushion rubber is 200 to 500 N / mm,
A floor structure using 10 to 11 cushion rubbers / m 2 . 前記緩衝体として発泡ウレタンフォーム、発泡ゴムシート、不織布のいずれか１つ又は２以上組合せたものを使用したことを特徴とする請求項１に記載の床構造。The floor structure according to claim 1, wherein one or a combination of two or more of foamed urethane foam, foamed rubber sheet, and nonwoven fabric is used as the buffer . 前記緩衝体の厚みを３〜１０ｍｍとしたことを特徴とする請求項２に記載の床構造。The floor structure according to claim 2, wherein a thickness of the buffer body is 3 to 10 mm . 前記床下地パネルとして厚さ２０ｍｍ又は２５ｍｍのものを使用したことを特徴とする請求項１ないし３のいずれか１項に記載の床構造。The floor structure according to any one of claims 1 to 3, wherein a floor base panel having a thickness of 20 mm or 25 mm is used . 前記捨張材として厚さ１２ｍｍ又は２５ｍｍのものを使用したことを特徴とする請求項１ないし４のいずれか１項に記載の床構造。The floor structure according to any one of claims 1 to 4, wherein a material having a thickness of 12 mm or 25 mm is used as the stripping material .
JP37419499A 1999-12-28 1999-12-28 Floor structure Expired - Fee Related JP4172892B2 (en)

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JP4904085B2 (en) * 2006-05-24 2012-03-28 フクビ化学工業株式会社 Floor structure
JP5613085B2 (en) * 2010-12-09 2014-10-22 株式会社ダイフクルネス Underfloor structure on floor slab
JP5594537B2 (en) * 2010-12-09 2014-09-24 株式会社ダイフクルネス Underfloor structure on floor slab

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