JP2002047788A - Double floor structure - Google Patents
Double floor structureInfo
- Publication number
- JP2002047788A JP2002047788A JP2000233012A JP2000233012A JP2002047788A JP 2002047788 A JP2002047788 A JP 2002047788A JP 2000233012 A JP2000233012 A JP 2000233012A JP 2000233012 A JP2000233012 A JP 2000233012A JP 2002047788 A JP2002047788 A JP 2002047788A
- Authority
- JP
- Japan
- Prior art keywords
- floor
- floor structure
- double
- fixed
- double floor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、集合住宅やオフィ
スなどにおける従来の床基盤の上に所定間隔をおいて上
部床構造を配置するようにした、いわゆる二重床構造に
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called double floor structure in which an upper floor structure is arranged at a predetermined interval on a conventional floor base in an apartment house or an office.
【０００２】[0002]
【従来の技術】オフィスビルや集合住宅において、防音
性能を高めるためあるいは配線、配管スペースを確保す
るためなどの目的で、図３に示すように、従来の床基盤
１の上に支持脚２を立て、該支持脚２を介して上部床構
造３を配置するようにした二重床構造が用いられてお
り、前記上部床構造３は、支持脚２に固定した床下地材
４と該床下地材４の上に固定した床仕上げ材５とから構
成されるのが普通である（例えば、特開平９−２０９５
４８号公報など参照）。2. Description of the Related Art In an office building or an apartment house, as shown in FIG. 3, a support leg 2 is mounted on a conventional floor base 1 for the purpose of enhancing soundproofing performance or securing wiring and piping space. There is used a double floor structure in which an upper floor structure 3 is arranged via the support legs 2. The upper floor structure 3 includes a floor substrate 4 fixed to the support legs 2 and the floor substrate. And a floor finishing material 5 fixed on the material 4 (for example, see Japanese Patent Application Laid-Open No. 9-2095).
No. 48, etc.).
【０００３】支持脚２には金属製のものや合成樹脂製の
ものが用いられ、高さを調整できるようになっている場
合が多い。支持脚２に固定される床下地材４は、合板、
繊維板、パーティクルボード、木板、合成樹脂板などの
材料が用いられる。支持脚２を利用して床面全体に床下
地材４を敷設した後、その上に、直接あるいは捨て張り
合板を接着剤や釘などを用いて固定し、さらに、その上
に、木質床材のような所望の床仕上げ材５を釘などを用
いて固定することにより、上部床構造３が構築される。The support legs 2 are made of metal or synthetic resin, and are often adjustable in height. The floor base material 4 fixed to the support legs 2 includes plywood,
Materials such as fiber boards, particle boards, wood boards, and synthetic resin boards are used. After laying the floor base material 4 on the entire floor surface using the support legs 2, directly or discarded plywood is fixed thereon with an adhesive or nails, and further, the wooden floor material is further placed thereon. The upper floor structure 3 is constructed by fixing a desired floor finishing material 5 such as described above using nails or the like.
【０００４】[0004]
【発明が解決しようとする課題】二重床構造では、床基
盤１と上部床構造３との間に存在する空間により軽量床
衝撃音Ｓの伝播は低減傾向にある。しかし、実際の床施
工においては、二重床構造による防音性能をさらに向上
させるために、図４に示すように、床基盤１と上部床構
造３との間の空間Ｓに合成樹脂発泡体のような材料であ
る吸音材６を挿入することや、上部床構造３における前
記支持脚２に固定した床下地材４とその上に固定する床
仕上げ材５との間に、面密度の高い制振シート７を敷き
詰めることなどが行われている。しかし、吸音材６を床
施工時に一枚ずつ前記空間Ｓ内に挿入することは大きな
作業負担であり、また、面密度の高い制振シート７はそ
の重量が重いこともあり、施工性を悪化させているのが
実状である。また、床仕上げ材５を床下地材４に直接釘
などにより固定していく作業も、釘打ち部分を外から見
えないように打ち付け固定することが必要であり、容易
でない。In the double floor structure, the propagation of the light floor impact sound S tends to be reduced due to the space existing between the floor base 1 and the upper floor structure 3. However, in actual floor construction, in order to further improve the soundproofing performance of the double floor structure, as shown in FIG. 4, the space S between the floor base 1 and the upper floor structure 3 is made of synthetic resin foam. Inserting a sound absorbing material 6 made of such a material, or providing a high surface density control between the floor base material 4 fixed to the support legs 2 and the floor finish material 5 fixed thereon on the upper floor structure 3. Laying the vibration sheet 7 is performed. However, inserting the sound absorbing material 6 into the space S one by one at the time of floor construction is a heavy work load, and the vibration damping sheet 7 having a high surface density may be heavy, which deteriorates workability. The fact is that they are doing it. Further, the work of directly fixing the floor finishing material 5 to the floor base material 4 with a nail or the like also requires striking and fixing the nailed portion so that it cannot be seen from the outside, which is not easy.
【０００５】本発明は上記の事情に鑑みてなされたもの
であり、これまでのように吸音材６や面密度の高い制振
シート７を配置することなく、また、施工作業を容易か
つ簡素化しながら、高い防音性能を確保することのでき
る改良された二重床構造を提供することを目的とする。The present invention has been made in view of the above circumstances, and does not require the provision of the sound absorbing material 6 or the vibration damping sheet 7 having a high surface density as before, and also facilitates and simplifies the construction work. An object of the present invention is to provide an improved double floor structure that can ensure high soundproof performance.
【０００６】[0006]
【課題を解決するための手段】本発明は、床基盤上に支
持脚を立て、該支持脚を介して上部床構造を配置してな
り、該上部床構造は、前記支持脚に固定した床下地材
と、該床下地材の上に固定した床仕上げ材とから構成さ
れてなる二重床構造において、前記床仕上げ材は、表面
材と、その裏面に一体に積層した緩衝材と、その裏面に
一体に積層した補強材とから構成されていることを特徴
とする。好ましくは、前記緩衝材と補強材とは表面材に
対して少なくとも一側辺側が位置ズレを持つようにして
一体に積層されており、該位置ズレ部分を利用して前記
床仕上げ材が床下地材に釘打ちなどにより固定されてい
る。According to the present invention, a support leg is erected on a floor base, and an upper floor structure is arranged via the support leg, and the upper floor structure is fixed under the floor fixed to the support leg. In a double floor structure comprising a ground material and a floor finishing material fixed on the floor base material, the floor finishing material is a surface material, a cushioning material integrally laminated on the back surface thereof, And a reinforcing material integrally laminated on the back surface. Preferably, the cushioning material and the reinforcing material are integrally laminated so that at least one side of the surface material is displaced from the surface material, and the floor finishing material is laid on the floor substrate using the displaced portion. It is fixed to the material by nailing.
【０００７】本発明による二重床構造では、支持脚上に
固定した床下地材とそこに固定される表面材との間に緩
衝材が介在しており、床面に発生する軽量床衝撃音は該
緩衝材により吸収される。それにより、下方への伝播は
大きく低減し、これまでのように吸音材や面密度の高い
制振シートを別途配置しなくても、配置した場合と同程
度の高い防音性能を持つ二重床構造を構築することがで
きる。In the double floor structure according to the present invention, the cushioning material is interposed between the floor base material fixed on the support legs and the surface material fixed thereto, so that a light floor impact sound generated on the floor surface is generated. Is absorbed by the cushioning material. As a result, the downward propagation is greatly reduced, and a double floor with the same level of sound insulation performance as when placed without the need to separately arrange sound absorbing materials or vibration damping sheets with high areal density. The structure can be built.
【０００８】しかも、表面材と緩衝材と補強材とは、予
め工場において一体に積層されて床仕上げ材とされてお
り、施工現場において、該床仕上げ材を支持脚に固定し
た床下地材の上に固定する作業はきわめて容易である。
また、前記補強材に裏打ちされた緩衝材を前記表面材に
対して位置ズレを持つようにして一体に積層しておく場
合には、その位置ズレ部分を利用して床仕上げ材を床下
地材に容易かつ確実に釘打ちなどにより固定することが
でき、かつ、該釘打ち部分は、隣接して固定する床仕上
げ材により隠蔽されるので、打ち付け固定に格別の注意
を払わなくてもよく、二重床構造の施工作業は容易化す
る。Moreover, the surface material, the cushioning material, and the reinforcing material are previously laminated together in a factory to form a floor finishing material. At a construction site, the floor finishing material is fixed to the support legs. The work of fixing on top is very easy.
When the cushioning material lined with the reinforcing material is integrally laminated so as to have a position shift with respect to the surface material, the floor finishing material is used as a floor base material using the position shift portion. Can be easily and reliably fixed by nailing or the like, and since the nailed portion is concealed by the floor finishing material fixed adjacently, it is not necessary to pay special attention to the nailing and fixing, Construction work of the double floor structure is facilitated.
【０００９】本発明において、緩衝材は不織布、樹脂発
泡体、合成ゴムシートのようなものであってよく、厚み
は１ｍｍ〜５ｍｍ程度であれば十分である。それより薄
いと十分な防音及び制振作用が果たされず、５ｍｍ程度
よりも厚いと過剰な沈み込みが生じて歩行感の低下を招
く恐れがある。また、前記補強材は、合板、木質繊維
板、樹脂含浸材のようなものであってよく、それらを適
宜積層したものであってもよい。補強材は、床仕上げ材
を床下地材に釘打ちなどで固定するときに、基板として
機能を果たするものであり、床仕上げ材の定着を安定化
する。In the present invention, the cushioning material may be a nonwoven fabric, a resin foam, a synthetic rubber sheet, and the thickness of about 1 mm to 5 mm is sufficient. If it is thinner than this, sufficient soundproofing and vibration damping effects cannot be achieved, and if it is thicker than about 5 mm, excessive sinking may occur, leading to a reduction in walking feeling. Further, the reinforcing material may be a plywood, a wood fiber board, a resin impregnated material, or a laminate of them as appropriate. The reinforcing material functions as a substrate when the floor finishing material is fixed to the floor base material by nailing or the like, and stabilizes the fixing of the floor finishing material.
【００１０】[0010]
【発明の実施の形態】以下、本発明による二重床構造を
図面を参照しながら説明する。図１は第１の実施の形態
を示す図であり、床仕上げ材５０の構成を除き、他の構
成は、前記図３に基づき説明した従来公知の二重床構造
と同様であってよい。すなわち、床基盤１の上には防振
ゴム２１を介して、ネジが切られた支持脚２２が立てら
れており、該支持脚２２の上端側には、台座２３がネジ
込まれている。台座２３には支持板２４が取り付けてあ
り、該支持板２４に対して、床下地材４０が適宜の手段
により固定されている。前記したように、床下地材４０
には、合板、繊維板、パーティクルボード、木板、合成
樹脂板などの材料が用いられる。なお、上記の構成は一
つの例示であり、本発明による二重床構造はこれに限ら
れず、従来公知の構造を任意に用いることができる。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A double floor structure according to the present invention will be described below with reference to the drawings. FIG. 1 is a view showing a first embodiment. Except for the configuration of a floor finishing material 50, the other configuration may be the same as the conventionally known double floor structure described with reference to FIG. That is, a threaded support leg 22 is erected on the floor base 1 via an anti-vibration rubber 21, and a pedestal 23 is screwed into the upper end side of the support leg 22. A support plate 24 is attached to the pedestal 23, and a floor base material 40 is fixed to the support plate 24 by an appropriate means. As described above, the floor substrate 40
For example, materials such as plywood, fiberboard, particle board, wood board, and synthetic resin board are used. In addition, the said structure is an illustration, The double floor structure by this invention is not limited to this, A conventionally well-known structure can be used arbitrarily.
【００１１】本発明の二重床構造において、床下地材４
０に対して、本発明に固有の床仕上げ材５０が固定され
る。すなわち、床仕上げ材５０は、表面材５１と、その
裏面に一体に積層した緩衝材５２と、その裏面に一体に
積層した補強材５３とから構成されており、工場におい
て予め一体物として製造されたものが施工現場に持ち込
まれる。床仕上げ材５０の全体形状に特に制限はない
が、従来公知のフローリング材と同じようなものであっ
てよく、施工性を考慮すると、３００ｍｍ×９００ｍｍ
程度の矩形状のものが望ましい。In the double floor structure of the present invention, the floor base material 4
0, a floor finish 50 unique to the present invention is fixed. That is, the floor finishing material 50 is composed of a surface material 51, a cushioning material 52 integrally laminated on the back surface thereof, and a reinforcing material 53 integrally laminated on the back surface thereof, and is manufactured in advance in the factory as an integrated material. Is brought to the construction site. The overall shape of the floor finishing material 50 is not particularly limited, but may be the same as a conventionally known flooring material. In consideration of workability, 300 mm × 900 mm
It is desirable that the shape be rectangular.
【００１２】表面材５１は、基材としての合板や木質繊
維板（ＭＤＦなど）の表面に突き板のような表面化粧材
を貼り付けたものでもよく、また、表面化粧された無垢
材であってもよい。厚みは６〜１２ｍｍ程度であってよ
く、４周には図示のように実加工５４が施されていても
よい。The surface material 51 may be a plywood or wood fiber board (MDF or the like) as a base material and a surface decorative material such as a veneer attached to the surface thereof, or a surface-decorated solid material. You may. The thickness may be about 6 to 12 mm, and the actual processing 54 may be performed on four rounds as shown in the figure.
【００１３】緩衝材５２は、この例では、比較的低密度
であり緩衝性の高い材料である不織布を用いているが、
これに限らない。厚みはこの例では２〜３ｍｍ程度であ
る。図示のように、緩衝材５２の形状及び大きさは前記
表面材５１と同じであるが、わずかに横方向に位置ズレ
を持つようにして表面材５１の裏面に、適宜の手段によ
り、例えば接着剤により一体に積層されている。In this example, the non-woven fabric which is a material having a relatively low density and a high cushioning property is used as the cushioning material 52.
Not limited to this. The thickness is about 2 to 3 mm in this example. As shown in the figure, the shape and size of the cushioning material 52 are the same as those of the surface material 51, but are slightly shifted in the lateral direction and are adhered to the back surface of the surface material 51 by appropriate means, for example. It is laminated integrally with the agent.
【００１４】補強材５３は、この例では、樹脂を含浸し
て強化した木質繊維板であるが、これに限らない。厚み
は、２〜６ｍｍ程度であればよい。この補強材５３の形
状と大きさも前記表面材５１と同じであり、前記表面材
５１に対して前記緩衝材５２と同じ距離だけ横方向の位
置ズレを持って、前記緩衝材５２の裏面に例えば接着剤
により一体に積層されている。In this example, the reinforcing material 53 is a wood fiber board reinforced by impregnation with a resin, but is not limited to this. The thickness may be about 2 to 6 mm. The shape and size of the reinforcing member 53 are also the same as those of the front surface member 51, and are shifted from the surface member 51 in the lateral direction by the same distance as the cushioning member 52. They are integrally laminated by an adhesive.
【００１５】上記の床仕上げ材５０は、前記したよう
に、施工現場において、床下地材４０の上に、直接ある
いは捨て張り合板を介して、釘などの固定具５５を用い
て固定される。その際に、固定具５５は前記した位置ズ
レ部を利用して打ち込まれるが、施工後に前記位置ズレ
部は隣接する床仕上げ材５０により覆われて見えなくな
るので、打ち込み作業は比較的容易に行うことができ
る。As described above, the floor finishing material 50 is fixed on the floor base material 40 at the construction site using a fixing tool 55 such as a nail, directly or through a discarded plywood. At this time, the fixing tool 55 is driven by using the above-mentioned misaligned portion. However, since the misaligned portion is covered with the adjacent floor finishing material 50 and cannot be seen after construction, the driving operation is performed relatively easily. be able to.
【００１６】図２は第２の実施の形態を示す図であり、
床仕上げ材５０Ａの構成を除き、他の構成は、前記図１
に示したものと同じである。この床仕上げ材５０Ａにお
いて、表面材５１は図１に示したものと同じである。緩
衝材５２Ａは、厚さ１ｍｍ前後の不織布あるいは樹脂発
泡体であり、補強材５３Ａは、厚み６ｍｍ程度の合板又
はＭＤＦである。床下地材４０への固定は、図１に示し
たものと同様に位置ズレ部を利用して固定具５５打ち込
むことにより行われる。FIG. 2 is a diagram showing a second embodiment.
Except for the configuration of the floor finishing material 50A, other configurations are the same as those shown in FIG.
Is the same as that shown in FIG. In this floor finishing material 50A, the surface material 51 is the same as that shown in FIG. The buffer material 52A is a nonwoven fabric or a resin foam having a thickness of about 1 mm, and the reinforcing material 53A is a plywood or MDF having a thickness of about 6 mm. The fixing to the floor base material 40 is performed by driving in the fixing tool 55 using the misalignment portion in the same manner as shown in FIG.
【００１７】次に、本発明による二重床構造について行
った計量床衝撃音レベル測定結果について、比較例と共
に説明する。試験は、１８０ｍｍのコンクリートスラブ
に防振ゴムを介して支持脚を立て、その上に、床下地材
として厚さ２０ｍｍのパーティクルボードを敷き詰めた
二重床を用意し、その上に、本発明による床仕上げ材
（実施例品）（試験体１〜３）及び比較例として従来の
床仕上げ材（比例品）（試験体４）を固定し、床仕上げ
材の上から軽量床衝撃を与え、下の階で周波数ごとの軽
量床衝撃音レベル（デシベル）をＪＩＳ Ａ１４１８，
１４４０に準じて測定した。そして、各試験体における
各周波数ごとの床衝撃音レベル（デシベル）からスラブ
厚１５０ｍｍの推定値を求め、それをＪＩＳでいう遮音
等級線（Ｌ等級線）に当てはめて、各試験体におけるＬ
数及び遮音等級を求めた。表１に、遮音等級を決定する
基礎となったＬ数及び遮音等級を示す。Next, the measurement results of the weighed floor impact sound level performed on the double floor structure according to the present invention will be described together with comparative examples. In the test, a support leg was set up on a 180 mm concrete slab via a vibration isolating rubber, on which a double floor with a particle board of 20 mm thickness as a flooring material was prepared, and a double floor was prepared according to the present invention. The floor finishing material (Example product) (Specimens 1 to 3) and the conventional floor finishing material (proportional product) (Specimen 4) as a comparative example are fixed, and a lightweight floor impact is applied from above the floor finishing material. Floor impact sound level (dB) for each frequency on the floor of JIS A1418,
It was measured according to 1440. Then, an estimated value of the slab thickness 150 mm is obtained from the floor impact sound level (decibel) for each frequency in each specimen, and the estimated value is applied to the sound insulation grade line (L grade line) according to JIS, and the L value in each specimen is determined.
The number and sound insulation grade were determined. Table 1 shows the L numbers and the sound insulation grades on which the sound insulation grades were determined.
【００１８】[0018]
【表１】 [Table 1]
【００１９】なお、試験体１は、ＭＤＦ（６ｍｍ厚）／
不織布（２ｍｍ厚）／ＭＤＦ（６ｍｍ厚）の３層構成で
あり、試験体２は、ＭＤＦ（６ｍｍ厚）／不織布（１ｍ
ｍ厚）／樹脂発砲シート（１ｍｍ厚）／ＭＤＦ（６ｍｍ
厚）の４層構成であり、試験体３は、ＭＤＦ（６ｍｍ
厚）／樹脂含浸紙の積層体（２ｍｍ厚）／ＭＤＦ（６ｍ
ｍ厚）の３層構成であり、試験体４は、１２ｍｍ厚合板
の単層構成である。The test piece 1 has an MDF (6 mm thickness) /
Specimen 2 has a three-layer structure of non-woven fabric (2 mm thick) / MDF (6 mm thick) and MDF (6 mm thick) / non-woven fabric (1 m thick).
m thickness) / resin foam sheet (1 mm thickness) / MDF (6 mm
Specimen 3 has an MDF (6 mm).
Thickness) / Laminate of resin-impregnated paper (2 mm thick) / MDF (6 m
m)), and the specimen 4 is a single-layer structure of 12 mm thick plywood.
【００２０】表１に示すように、試験体１では、決定Ｌ
数及びＬ等級の双方で比較品よりもよい結果が得られて
おり、また、試験体２、３では、Ｌ等級は比較品と同じ
であるが、決定Ｌ数では比較品よりもよい結果が得られ
ている。いずれからも、本発明による二重床構造では、
これまでのように吸音材や面密度の高い制振シートを配
置しなくても、ほぼ同等に改善された防音・遮音性能が
得られることがわかる。As shown in Table 1, in the test sample 1, the determination L
Better results were obtained in both the number and the L class than in the comparative product, and in the specimens 2 and 3, the L class was the same as the comparative product, but the determined L number was better than the comparative product. Have been obtained. From both, in the double floor structure according to the present invention,
It can be seen that almost the same improved soundproofing and sound insulating performance can be obtained without arranging a sound absorbing material or a vibration damping sheet having a high surface density as in the past.
【００２１】[0021]
【発明の効果】上記のようであり、本発明による二重床
構造では、施工を容易かつ簡素化しながら、高い防音・
遮音性能を得ることができる。As described above, in the double floor structure according to the present invention, high soundproofing and soundproofing can be achieved while simplifying and simplifying construction.
Sound insulation performance can be obtained.
【図１】本発明による二重床構造の一実施の形態を説明
する図。FIG. 1 is a diagram illustrating an embodiment of a double floor structure according to the present invention.
【図２】本発明による二重床構造の他の実施の形態を説
明する図。FIG. 2 is a diagram illustrating another embodiment of the double floor structure according to the present invention.
【図３】従来の二重床構造の一例を説明する図。FIG. 3 is a diagram illustrating an example of a conventional double floor structure.
【図４】従来の二重床構造の他の例を説明する図。FIG. 4 is a diagram illustrating another example of a conventional double floor structure.
１…床基盤、２２…支持脚、２４…支持板、４０…床下
地材、５０、５０Ａ…床仕上げ材、５１…表面材、５
２、５２Ａ…緩衝材、５３、５３Ａ…補強材、５５…固
定用釘DESCRIPTION OF SYMBOLS 1 ... Floor base, 22 ... Support leg, 24 ... Support plate, 40 ... Floor base material, 50, 50A ... Floor finishing material, 51 ... Surface material, 5
2, 52A: cushioning material, 53, 53A: reinforcing material, 55: fixing nail
───────────────────────────────────────────────────── フロントページの続き (72)発明者 原田 和信 大阪府大阪市住之江区平林南２丁目10番60 号 永大産業株式会社内 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Kazunori Harada 2--10-60 Hirabayashiminami, Suminoe-ku, Osaka-shi, Osaka
Claims (4)
して上部床構造を配置してなり、該上部床構造は、前記
支持脚に固定した床下地材と、該床下地材の上に固定し
た床仕上げ材とから構成されてなる二重床構造におい
て、 前記床仕上げ材は、表面材と、その裏面に一体に積層し
た緩衝材と、その裏面に一体に積層した補強材とから構
成されることを特徴とする二重床構造。1. A support leg is erected on a floor base, and an upper floor structure is arranged via the support leg. The upper floor structure includes a floor base material fixed to the support leg, and a floor base material. The floor finishing material comprises a surface material, a cushioning material integrally laminated on the back surface, and a reinforcing material integrally laminated on the back surface. And a double floor structure.
なくとも一側辺側が位置ズレを持つようにして一体に積
層されており、該位置ズレ部分を利用して前記床仕上げ
材が床下地材に釘打ちなどにより固定されていることを
特徴とする請求項１記載の二重床構造。2. The cushioning material and the reinforcing material are integrally laminated so that at least one side of the cushioning material and the surface material are displaced from each other, and the floor finishing material is placed under the floor using the displaced portion. 2. The double floor structure according to claim 1, wherein the double floor structure is fixed to the base material by nailing or the like.
ゴムシートのいずれかである請求項１又は２記載の二重
床構造。3. The double floor structure according to claim 1, wherein the cushioning material is one of a nonwoven fabric, a resin foam, and a synthetic rubber sheet.
含浸材のいずれかである請求項１又は２記載の二重床構
造。4. The double floor structure according to claim 1, wherein the reinforcing material is any of a plywood, a wood fiber board, and a resin impregnated material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000233012A JP2002047788A (en) | 2000-08-01 | 2000-08-01 | Double floor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000233012A JP2002047788A (en) | 2000-08-01 | 2000-08-01 | Double floor structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002047788A true JP2002047788A (en) | 2002-02-15 |
Family
ID=18725605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000233012A Pending JP2002047788A (en) | 2000-08-01 | 2000-08-01 | Double floor structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002047788A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7767020B2 (en) | 2004-02-19 | 2010-08-03 | Sumco Techxiv Corporation | Method for manufacturing single crystal semiconductor |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63247466A (en) * | 1987-04-30 | 1988-10-14 | 朝日ウッドテック株式会社 | Execution of wooden decorative floor |
| JPS6453349U (en) * | 1987-09-26 | 1989-04-03 | ||
| JPH01154735U (en) * | 1988-04-02 | 1989-10-24 | ||
| JPH0329642U (en) * | 1989-07-31 | 1991-03-25 | ||
| JPH04120359A (en) * | 1990-09-11 | 1992-04-21 | Hayakawa Rubber Co Ltd | Floor material for stationary use |
| JPH0732083U (en) * | 1993-11-30 | 1995-06-16 | 松下電工株式会社 | Soundproof floor material and soundproof floor material mounting device |
| JPH07229273A (en) * | 1994-02-18 | 1995-08-29 | Dantani Plywood Co Ltd | Floor board simply enabling construction |
| JPH11182007A (en) * | 1997-12-18 | 1999-07-06 | Kawai Musical Instr Mfg Co Ltd | Woody floor member |
-
2000
- 2000-08-01 JP JP2000233012A patent/JP2002047788A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63247466A (en) * | 1987-04-30 | 1988-10-14 | 朝日ウッドテック株式会社 | Execution of wooden decorative floor |
| JPS6453349U (en) * | 1987-09-26 | 1989-04-03 | ||
| JPH01154735U (en) * | 1988-04-02 | 1989-10-24 | ||
| JPH0329642U (en) * | 1989-07-31 | 1991-03-25 | ||
| JPH04120359A (en) * | 1990-09-11 | 1992-04-21 | Hayakawa Rubber Co Ltd | Floor material for stationary use |
| JPH0732083U (en) * | 1993-11-30 | 1995-06-16 | 松下電工株式会社 | Soundproof floor material and soundproof floor material mounting device |
| JPH07229273A (en) * | 1994-02-18 | 1995-08-29 | Dantani Plywood Co Ltd | Floor board simply enabling construction |
| JPH11182007A (en) * | 1997-12-18 | 1999-07-06 | Kawai Musical Instr Mfg Co Ltd | Woody floor member |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7767020B2 (en) | 2004-02-19 | 2010-08-03 | Sumco Techxiv Corporation | Method for manufacturing single crystal semiconductor |
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