JP3378300B2 - Architectural flooring - Google Patents
Architectural flooringInfo
- Publication number
- JP3378300B2 JP3378300B2 JP15160493A JP15160493A JP3378300B2 JP 3378300 B2 JP3378300 B2 JP 3378300B2 JP 15160493 A JP15160493 A JP 15160493A JP 15160493 A JP15160493 A JP 15160493A JP 3378300 B2 JP3378300 B2 JP 3378300B2
- Authority
- JP
- Japan
- Prior art keywords
- floor
- decorative board
- flooring
- base material
- specific gravity
- 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.)
- Expired - Lifetime
Links
Landscapes
- Floor Finish (AREA)
Description
【発明の詳細な説明】
【０００１】
【産業上の利用分野】本発明は合板やパーティクルボー
ドよりなる床下地、ＲＣ造りのコンクリート床下地、或
いはＯＡ床等のような平坦な床下地上に接着剤を用いる
ことなく直置きしながら施工するのに適した建築用床材
に関するものである。
【０００２】
【従来の技術】従来から、床下地上に床材を施工する場
合、長方形状のムク材や合板フローリング材の下面に不
陸の吸収や接着性、防音性の向上を図る目的で繊維状や
シート状のクッション材を貼着してなる床板を用い、こ
の床板を床下地上に接着剤によって貼着する方法が広く
採用されているが、接着剤の塗布作業等に煩雑さが生じ
るばかりでなく、床材を床下地上に一体に固着させると
張り替えが困難になるという問題点がある。
【０００３】このため、接着剤を用いることなく床下地
上に直貼りしても捲れや剥がれの生じない床材が提案さ
れている。このような床材としては、図３に示すよう
に、薄肉の弾性シートＣ上に、下面に長さ方向に複数の
切溝Ｂを設けて可撓性を付与された化粧板基材Ａを一体
に積層してなる構造のものが開発されている。
【０００４】
【発明が解決しようとする課題】しかしながら、例え
ば、緩やかな曲面を有する床下地上に施工する場合に
は、床材基板である化粧板基材Ａの下面に多数の切溝Ｂ
を設けて可撓性を持たせていても床材がその剛性によっ
て水平状態に載置されるだけで、該床材に外力を加える
ことにより始めて切溝Ｂを介して床下地面に沿うように
撓むものであり、その上、このように撓ませても化粧板
基材Ａが復元力により床下地から浮きあがって床仕上げ
面の美観が損なわれるばかりでなく、その上を歩行した
際に床鳴り現象が発生することになる。このような問題
点は、切溝の深さを大きくすることによってなくするこ
とができるが、そうすると、床材全体の強度が低下して
折損したり、下面に貼着した弾性シートが伸縮して破断
するという問題点がある。
【０００５】さらに、化粧板基材Ａ自体に捩れや歪みが
生じていると、その下面に貼着している弾性シートＣも
その捩れや歪みに応じて変形し、該弾性シートＣが不陸
を吸収するために設けられているにも拘わらず、その下
面を床下地面に全面的に密着させることが困難となって
床下地との間に部分的な隙間が発生し、上記のような床
鳴りが生じる虞れがあるばかりでなく隣接する床材同士
の接合端面間に段差や目隙が生じて精度のよい施工がで
きなくなるという問題点がある。本発明はこのような問
題点を全面的に解消し得る建築用床材の提供を目的とす
るものである。
【０００６】
【課題を解決するための手段】上記目的を達成するため
に本発明の建築用床材は、自重による馴染み性と曲げ弾
性を有する可撓性基材の上面に木質化粧板を積層一体化
してなる建築用床材であって、上記木質化粧板には、そ
の下面に小間隔毎に互いに平行な側端面間に亘って連通
する適宜深さの切溝が多数設けられて、これらの切溝を
介して可撓性を付与されていると共に、該可撓性基材の
比重と厚みとの積を木質化粧板の比重と厚みとの積より
も大きくして重心を可撓性基材内に位置させてあり、さ
らに、床材の長辺側の一側端部には、上記木質化粧板の
一側端部をその下層部を残してＬ字状に切欠く一方、可
撓性基材の一側端部をその上層部を残して逆Ｌ字状に切
欠くことによって上半部が上記切溝を露出させた木質化
粧板の薄片部からなり、下半部が上記可撓性基材の薄片
部からなる雄実部が形成されていると共に、床材の長辺
側の他側端部には、その他端面中央部を断面コ字状の条
溝形状に削成して、上方の突出壁が上記木質化粧板より
なり、下方の突出壁が可撓性基材よりなる雌実部を形成
した構造としている。
【０００７】
【作用】木質化粧板に反りや捩れが生じている場合、木
質化粧板自体の剛性によってその反りや捩れ状態は保持
されるが、その下面に積層一体化した可撓性基材の比重
と厚みとの積が木質化粧板のそれよりも大きくしている
ので、木質化粧板の剛性に可撓性基材の自重が打ち勝っ
て木質化粧板が可撓性基材の馴染み変形に追随すること
になる。即ち、床材全体が外力により強制的に床下地面
に沿うように形状補正を行うことなく、床板自体が床下
地面に応じた形状の自己補正機能を備えている。
【０００８】従って、この床材を床下地上に敷設した時
に、床材全体が床下地面の形状に応じて馴染み変形し、
床下地面の不陸を吸収すると共に床下地面からの浮き上
がり現象がなくなって床鳴りを生じさせることなく良好
な歩行が可能となり、また、雄実部の上半部が切溝を露
出させた木質化粧板の薄片部によって形成していると共
に下半部が可撓性基材の薄片部によって形成しているの
で、雄実部の上半部が木質化粧板の薄片部から形成され
ているにもかかわず、切溝によって可撓性が付与されて
あり、その上、この切溝を設けている木質化粧板の薄片
部は、可撓性の薄片部によって補強されて折損や破損を
防止することができると共に、床下地上に床材の雌雄実
部同士を嵌合させることによって施工する際に、雄実部
の下層部には上述したように可撓性基材からなる薄片部
が設けられている一方、雌実部の下側突出壁も可撓性基
材から形成されているので、床材に多少の変形歪み等が
生じていても、上記薄片部と突出壁とがその歪み形状に
応じて弾性変形しながら密接し、床材同士の端面が正確
に接合して目隙やずれ等が生じない精度のよい施工が可
能となるものである。
【０００９】
【実施例】本発明の実施例を図面について説明すると、
１は一定幅と長さを有する長方形状の木質化粧板で、３
〜７プライの合板、パーティクルボード、ＭＤＦ等の比
重が0.5 〜0.9 の木質板1aの上面に薄い突板やＷＰＣ
板、或いは樹脂化粧シートよりなる表面化粧層1bを一体
に設けてなるものであり、この木質化粧板１の下面に
は、鋸等の切削具によって長さ方向に10〜100mm 間隔毎
に幅方向に貫通する切溝２が刻設されている。切溝２の
深さは、木質化粧板１の下面から上面に向かって該木質
化粧板１の厚みの１／３以上となるように切削され、曲
げ剛性は残存する２／３の厚さの３乗、即ち、８／27以
下に低減され、これらの切溝２、２・・によって木質化
粧板１に可撓性を付与していると共に軽量化を図ってい
る。
【００１０】この木質化粧板１の大きさは特に限定され
ないが、一例を挙げると、短辺方向の長さが50〜300mm
、長辺方向の長さが600 〜1800mm、厚みが３〜９mmの
長方形板に形成されている。なお、上記切溝２の深さを
余り深くすると、その切溝２から木質化粧板１が折損す
る虞れが生じるので、木質化粧板１の厚みの３／４以下
にしておくことが好ましい。
【００１１】３は自重にて垂れ下がる適度の曲げ弾性を
有する可撓性基材で、その上面に接着剤４によって上記
木質化粧板１を一体に積層接着させて床材Ｆを形成して
いる。この接着剤４としては、ポリウレタン、ビニルウ
レタン、酢酸ビニル、エチレン酢ビ、アクリル樹脂など
のように、硬化後においても柔軟性を有する接着剤が使
用される。
【００１２】また、上記可撓性基材３の種類は特に限定
されないが塩化ビニル樹脂、ウレタン樹脂、クロロプレ
ンやブチルなどの合成ゴム系樹脂、ポリエステル樹脂、
或いは各種再利用プラスチック等を使用でき、これらの
樹脂に炭酸カルシウム、シリカ、アルミナ、カーボンブ
ラック、金属粉、或いは金属酸化物粉等の重量粉を適宜
混入して、可撓性基材３の比重を上記木質化粧板１より
も大きい1.0 以上、好ましくは木質化粧板１の比重の1.
5 倍以上の高比重基材に形成することにより、上記木質
化粧板１の曲げヤング係数がばらついても可撓性基材３
の自重で確実に曲げ弾性を付与できる。
【００１３】さらに、この可撓性基材３の厚みを３〜10
mmに設定すると共にこの厚みと上記比重との積を、上記
木質化粧板１の厚みと比重との積よりも大にして、重心
が可撓性基材３内に位置させた床材Ｆを構成しているも
のである。
【００１４】この床材Ｆの長辺側の両側端部には全長に
亘って雌雄実部５、６が形成されてある。雄実部５の構
造としては、木質化粧板１の一側端部をその下層部を残
してＬ字状に切欠く一方、可撓性基材３の一側端部をそ
の上層部を残して逆Ｌ字状に切欠くことによって上半部
には木質化粧板１の薄片部5aを有し、下半部には可撓性
基材３の薄片部5bを有する構造に形成され、上半薄片部
5aには上記切溝２が露出してなるものである。また、雌
実部６は、床材Ｆの他端面中央部を断面コ字状の条溝形
状に削成して、上方の突出壁6aが木質化粧板１により、
下方の突出壁6bが可撓性基材３により夫々形成された構
造となっている。そして、この雌実部６の上側突出壁6a
の下面にも上記切溝２が露出している。
【００１５】なお、床材Ｆの短片側の両端部にも上記と
同じ構造を有する雌雄実部が形成され、床下地Ｄ上に敷
設する際に、床材Ｆ、Ｆが雌雄実部５、６を嵌合させる
ことによって施工されるものである。この際、雄実部５
の下層部には可撓性基材３からなる薄片部5aが設けられ
ている一方、雌実部６の下側突出壁6bも可撓性基材３か
ら形成されているので、床材Ｆに多少の変形歪み等が生
じていても、薄片部5aと突出壁6bとがその歪み形状に応
じて弾性変形しながら密接し、目隙やずれ等が生じない
精度のよい施工が可能となるものである。
【００１６】また、上記のように、可撓性基材３の厚み
と比重との積を、木質化粧板１の厚みと比重との積より
も大にして、重心が可撓性基材３内に位置させているの
で、木質化粧板１の剛性に対して可撓性基材３の自重が
打ち勝ち、木質化粧板１に反りや捩れが生じていても、
図２に示すように、床下地Ｄ上に床材Ｆを敷設した場
合、可撓性基材３がその自重によって床下地Ｄの表面形
状に応じて馴染み変形しながら密着し、その馴染み変形
に追随して木質化粧板１が変形することになる。即ち、
木質化粧板１の剛性よりも可撓性基材３の馴染み力が大
きいために、木質化粧板自体はその反りや捩れを床下地
面の表面形状に応じて矯正されるものである。従って、
床材全体が、外力を加えることなく、床下地面の形状に
対応する自己順応機能を備えているものである。
【００１７】木質化粧板１の剛性は、曲げヤング係数と
比重との因子によって決定され、同様に可撓性基材３の
重量もその比重と厚さ因子との相関関係によって決定さ
れるが、通常、汎用の木質化粧板はその曲げヤング係数
が30〜200 ×103Kg/cm3=であって比重が0.5 〜0.9 とい
う物性を有しているため、木質化粧板の自重による等分
布荷重だけではその反りや捩れを矯正することができな
いが、その下面に重量の大なる可撓性基材３を一体に設
けることによって全体の重心を可撓性基材３内に位置さ
せ、床材に馴染み性、即ち、載置面に応じた自己順応機
能を備えさせることができるものである。
【００１８】さらに、木質化粧板１にはその下面から上
面に向かって適宜深さの切溝２を長さ方向に所望間隔毎
に設けているので、この切溝２を有する木質化粧板部分
の曲げ剛性が残存する厚さの３乗に低減されて極めて小
さくなる一方、該切溝下方部の可撓性基材３による自重
が相対的に増大して一層良好な自己順応機能を発揮する
ものである。なお、以上の実施例においては、長方形状
の床材について説明したが、短冊形状の複数枚の床材を
雁行状に並設、一体化してなる形状の建築用床材であっ
ても、本発明の上記構成を具備させることができる。
【００１９】次に、本発明の具体的な実施例と比較例に
ついて述べる。
〔実施例〕長さ910mm 、幅91mmで、表面に1.2mm のナラ
材化粧単板を積層した厚さ5.5mmの４プライ合板（比重
0.65) の木質化粧板の裏面に15mm間隔で深さ2.5mm の切
溝を設け、一液性ウレタン接着剤を用いて４mm厚さの炭
酸カルシウム混入再生塩ビ（比重1.8mm)を積層一体化
し、四辺を雌雄実加工した床材を得た。
〔実施例２〕木質化粧板として表面に1.2mm のナラ材化
粧単板を使用し、厚さ10mmの５プライ合板（比重0.7)を
用い、切溝深さを7.5mm とした他は実施例１と同様とし
た。
〔比較例１〕木質化粧板として表面に0.3mm のナラ材化
粧単板を使用し、表面材を含めて厚さ９mmの６プライ合
板（比重0.7)を用い、切溝深さを6.5mm とし、３mm厚で
比重1.6 の可撓性基材を用いた他は、実施例１と同様と
した。
【００２０】上記実施例１、２及び比較例１で得た床材
を、接着剤を用いずにコンクリートスラブ上に各40枚
（一坪）を載置したところ、実施例１、２の床材は浮き
上がりや床鳴りはなかったが、比較例の床材には浮き上
がりや床鳴りが生じた。なお、実施例１と比較例１の床
材についてスパン80cmで支持して自重での撓みを測定し
たところ、前者が41mm、後者が９mmでこの差が床なじみ
性の差である。
【００２１】
【発明の効果】以上のように本発明の建築用床材によれ
ば、平行な側端面間に亘って連通する適宜深さの切溝を
下面に小間隔毎に複数条設けることによりこれらの切溝
を介して可撓性を付与された木質化粧板と、上面にこの
木質化粧板を一体に積層した曲げ弾性を有する可撓性基
材とからなる建築用床材において、可撓性基材の比重と
厚みとの積を木質化粧板の比重の厚みとの積よりも大き
くして重心を可撓性基材内に位置させているものである
から、木質化粧板に反りや捩れが生じていても、可撓性
基材の自重によってその反りや捩れを矯正することがで
きるものである。
【００２２】従って、この床材を床下地上に敷設した場
合、床下地面に不陸や湾曲面等が生じていても、可撓性
基材がその床面形状に応じて馴染み変形すると共に木質
化粧板がその馴染み変形に順応して可撓性基材と一体的
に変形し、上方より外力を加えることなく床下地面の不
陸等を確実に吸収することができると共に、床下地面か
らの浮き上がり現象もなくなって床鳴り等を生じさせる
ことなく良好な歩行が可能となるものである。
【００２３】さらに、接着剤を用いることなく床下地面
に床材を直置きするだけで、上記のように床材全体を床
下地の床面形状に応じた馴染み変形を行わせることがで
きるので、その施工が簡単であって作業能率が著しく向
上するばかりでなく、床材の長辺側の一側端部に設けて
いる雄実部は、その上半部を切溝を露出させた木質化粧
板の薄片部によって形成していると共に下半部を可撓性
基材の薄片部によって形成しているので、雄実部の上半
部が木質化粧板の薄片部から形成されているにもかかわ
ず、切溝によって可撓性を付与することができ、その
上、この切溝を設けている木質化粧板の薄片部は、可撓
性の薄片部によって補強されて折損や破損を防止するこ
とができると共に、床下地上に床材の雌雄実部同士を嵌
合させることによって施工する際に、雄実部の下層部に
は上述したように可撓性基材からなる薄片部が設けられ
ている一方、雌実部の下側突出壁も可撓性基材から形成
されているので、床材に多少の変形歪み等が生じていて
も、上記薄片部と突出壁とがその歪み形状に応じて弾性
変形しながら密接し、床材同士の接合端面を正確に接合
させることができて目隙や段差等の生じない精度のよい
施工が可能となり、安定した美麗な床仕上面を形成する
ことができる。また、床材張り替え時においては、床下
地からの床材の取り外しが容易となって張り替え施工が
能率よく行えるものである。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an adhesive on a floor substrate made of plywood or particle board, a concrete floor substrate made of RC, or a flat floor substrate such as an OA floor. TECHNICAL FIELD The present invention relates to a flooring material for a building, which is suitable for construction while being directly placed without using a floor. 2. Description of the Related Art Conventionally, when a floor material is constructed on a floor substrate, a fiber is provided on the lower surface of a rectangular muk material or a plywood flooring material for the purpose of improving the absorption of irregularities, the adhesiveness, and the soundproofing. A method of using a floor plate on which a cushion member in the shape of a sheet or a sheet is adhered, and attaching the floor plate to a floor base with an adhesive has been widely adopted, but the work of applying the adhesive becomes complicated. In addition, there is a problem that if the floor material is integrally fixed on the floor substrate, it is difficult to replace the floor material. [0003] For this reason, floor materials have been proposed which do not roll up or peel off even when they are directly adhered to a floor base without using an adhesive. As such a flooring material, as shown in FIG. 3 , a decorative board substrate A provided with flexibility by providing a plurality of cut grooves B in a length direction on a thin elastic sheet C on a lower surface. A structure having a structure of being integrally laminated has been developed. [0004] However, for example, in the case of installation on a floor substrate having a gentle curved surface, a large number of cut grooves B are formed on the lower surface of the decorative board base material A as a floor material substrate.
Even if the floor material is provided with flexibility, only the floor material is placed in a horizontal state due to its rigidity. Only by applying an external force to the floor material, the floor material can be along the floor base surface through the cut groove B. In addition, even if such a bending is performed, the decorative board base material A rises from the floor base due to the restoring force, so that not only the aesthetic appearance of the floor finished surface is impaired, but also when the floor is walked on the floor. A ringing phenomenon will occur. Such problems can be eliminated by increasing the depth of the kerfs, but then the strength of the entire flooring material is reduced and the floor material is broken or the elastic sheet attached to the lower surface expands and contracts. There is a problem of breaking. Further, if the decorative sheet substrate A itself is twisted or distorted, the elastic sheet C adhered to its lower surface is also deformed in accordance with the twist or distortion, and the elastic sheet C becomes uneven. Despite being provided to absorb the floor, it is difficult to bring the lower surface into full contact with the floor base surface, and a partial gap is generated between the base and the floor base. In addition to the possibility of noise, there is a problem that a step or a gap is generated between the joint end surfaces of the adjacent floor members, and accurate construction cannot be performed. An object of the present invention is to provide a flooring material for buildings capable of completely solving such a problem. [0006] In order to achieve the above object, a building flooring material according to the present invention comprises a laminated wooden board on the upper surface of a flexible base material having conformability and bending elasticity by its own weight. An integrated flooring material, wherein the wooden decorative board is provided with a large number of kerfs on the lower surface thereof, each having an appropriate depth, communicating with the side end faces parallel to each other at small intervals. The flexibility is given through the notch, and the product of the specific gravity and the thickness of the flexible base material is made larger than the product of the specific gravity and the thickness of the wooden decorative board to make the center of gravity flexible. It is located in the base material, and further, on one end of the long side of the floor material,
One side end is cut out in an L-shape leaving its lower layer,
Cut one end of the flexible substrate into an inverted L-shape leaving the upper layer
Woody with the upper half exposing the kerf by chipping
It consists of a lamella of a decorative board, and the lower half is a lamella of the above-mentioned flexible substrate.
And the long side of the flooring
At the other end of the side, the center of the other end face is a U-shaped section.
It is cut into a groove shape, and the upper protruding wall is
The lower projecting wall forms a female part made of a flexible base material
The structure is made. When the wooden decorative board is warped or twisted, the warped or twisted state is maintained by the rigidity of the wooden decorative board itself. Since the product of specific gravity and thickness is larger than that of the wooden decorative board, the weight of the flexible base material overcomes the rigidity of the wooden decorative board, and the wooden decorative board follows the familiar deformation of the flexible base material Will do. That is, the floorboard itself has a self-correction function of a shape corresponding to the floor base surface without performing shape correction so that the entire flooring material is forced to follow the floor base surface by external force. Accordingly, when this floor material is laid on the floor substrate, the entire floor material is deformed according to the shape of the floor substrate surface,
Absorbing the unevenness of the ground floor, the phenomenon of lifting from the ground floor is eliminated, and good walking is possible without generating floor noise, and the upper half of the male part exposes a kerf.
And that it is formed by the thin sections of the wooden decorative board
The lower half is formed by the thin section of the flexible substrate
The upper half of the male part is formed from a thin wooden veneer
Notwithstanding, the kerfs provide flexibility
Yes, and on top of this, a lamella of wood veneer with this kerf
Section is reinforced by a flexible flake section to prevent breakage and breakage.
Can be prevented and the sex of flooring
When installing by fitting the parts, the male part
In the lower layer portion, a thin section made of a flexible base material as described above
Is provided, and the lower protruding wall of the female part is also flexible base.
Since it is made of wood, the floor material will have some deformation and distortion.
Even if it occurs, the thin section and the protruding wall may
Accordingly, they are closely contacted with each other while being elastically deformed, and the end faces of the flooring materials are accurately joined to each other, so that the construction can be performed with high accuracy without causing gaps, deviations, and the like . An embodiment of the present invention will be described with reference to the drawings.
1 is a rectangular wooden decorative board having a constant width and length.
7-ply plywood, particle board, thin wood veneer or WPC on the upper surface of wood board 1a with specific gravity of 0.5-0.9
A surface decorative layer 1b made of a veneer or a resin decorative sheet is integrally provided. On the lower surface of the wooden decorative board 1, a cutting tool such as a saw or the like is used in a width direction at intervals of 10 to 100 mm in a length direction. A cut groove 2 penetrating therethrough is formed. The depth of the kerf 2 is cut from the lower surface of the wooden veneer 1 to the upper surface so as to be 1/3 or more of the thickness of the wooden veneer 1, and the bending rigidity is 2/3 of the remaining thickness. The number of cuts is reduced to the third power, that is, 8/27 or less. These cut grooves 2, 2,... Impart flexibility to the wooden decorative board 1 and reduce the weight. The size of the wooden decorative board 1 is not particularly limited. For example, the length of the short side direction is 50 to 300 mm.
It is formed in a rectangular plate having a length in the long side direction of 600 to 1800 mm and a thickness of 3 to 9 mm. In addition, if the depth of the cut groove 2 is too large, there is a possibility that the wooden decorative board 1 may be broken from the cut groove 2. Therefore, it is preferable that the thickness of the wooden decorative board 1 is set to 3/4 or less. Reference numeral 3 denotes a flexible base material which has an appropriate bending elasticity which hangs down under its own weight, and the wooden decorative board 1 is integrally laminated and adhered to the upper surface thereof with an adhesive 4 to form a floor material F. As the adhesive 4, an adhesive having flexibility even after curing, such as polyurethane, vinyl urethane, vinyl acetate, ethylene vinyl acetate, and acrylic resin, is used. The type of the flexible substrate 3 is not particularly limited, but may be a vinyl chloride resin, a urethane resin, a synthetic rubber resin such as chloroprene or butyl, a polyester resin, or the like.
Alternatively, various kinds of recycled plastics and the like can be used, and a weight powder such as calcium carbonate, silica, alumina, carbon black, metal powder, or metal oxide powder is appropriately mixed into these resins, and the specific gravity of the flexible base material 3 is obtained. Is greater than the above-mentioned wooden decorative panel 1 by 1.0 or more, and preferably, the specific gravity of the wooden decorative panel 1 is 1.
By forming it on a high specific gravity base material of 5 times or more, even if the bending modulus of the wooden decorative board 1 varies, the flexible base material 3
With its own weight, bending elasticity can be reliably provided. Further, the thickness of the flexible substrate 3 is 3 to 10
mm, and the product of the thickness and the specific gravity is set to be larger than the product of the thickness and the specific gravity of the wooden decorative board 1 so that the floor material F whose center of gravity is located in the flexible base material 3 is What constitutes. Male and female parts 5 and 6 are formed over both ends of the long side of the floor material F over the entire length. As the structure of the male part 5, one end of the wooden decorative board 1 is cut out in an L-shape while leaving the lower part thereof, while one end of the flexible base material 3 is left in the upper part. The upper half has a thin section 5a of the wooden decorative board 1 and the lower half has a thin section 5b of the flexible base material 3 by being cut in an inverted L-shape. Semi-thin section
In FIG. 5a, the kerf 2 is exposed. In addition, the female part 6 is formed by cutting the center of the other end surface of the floor material F into a U-shaped cross-sectional groove shape, and the upper protruding wall 6a is formed by the wooden decorative board 1.
The lower projecting walls 6b have a structure formed by the flexible base material 3 respectively. And the upper protruding wall 6a of the female part 6
The above-mentioned kerf 2 is also exposed on the lower surface of the slab. Male and female real parts having the same structure as described above are also formed at both ends on the short side of the floor material F. When the floor materials F are laid on the floor base D, the male and female real parts 5, 6 is fitted. At this time, male part 5
In the lower layer portion, a thin portion 5a made of the flexible base material 3 is provided, while the lower protruding wall 6b of the female part 6 is also formed of the flexible base material 3, so that the floor material F Even if there is some deformation distortion, etc., the thin section 5a and the protruding wall 6b are in close contact with each other while being elastically deformed according to the distortion shape, and it is possible to perform accurate construction without causing gaps and deviations etc. Things. Further, as described above, the product of the thickness and the specific gravity of the flexible substrate 3 is made larger than the product of the thickness and the specific gravity of the decorative wooden board 1 so that the center of gravity is Since the self-weight of the flexible base material 3 overcomes the rigidity of the wooden decorative board 1, even if the wooden decorative board 1 is warped or twisted,
As shown in FIG. 2, when the floor material F is laid on the floor substrate D, the flexible base material 3 adheres to the floor substrate D while conforming and deforming according to the surface shape of the floor substrate D due to its own weight. Following this, the wooden decorative board 1 is deformed. That is,
Since the adaptability of the flexible base material 3 is greater than the rigidity of the wooden decorative panel 1, the wooden decorative panel itself corrects its warp and twist in accordance with the surface shape of the floor substrate. Therefore,
The entire flooring has a self-adaptation function corresponding to the shape of the floor base without applying external force. The rigidity of the decorative wooden board 1 is determined by the factors of the bending Young's modulus and the specific gravity. Similarly, the weight of the flexible substrate 3 is determined by the correlation between the specific gravity and the thickness factor. In general, general-purpose wooden decorative boards have physical properties such as a bending Young's modulus of 30 to 200 × 10 3 Kg / cm 3 = and a specific gravity of 0.5 to 0.9. Cannot correct the warp or twist by itself, but by providing the heavy flexible substrate 3 integrally on the lower surface thereof, the entire center of gravity is positioned within the flexible substrate 3 and the floor material is It is possible to provide a familiarity, that is, a self-adaptive function according to the mounting surface. Furthermore, since the wooden decorative board 1 is provided with grooves 2 having a suitable depth from the lower surface to the upper surface at desired intervals in the length direction, the wooden decorative board 1 having the cut grooves 2 While the flexural rigidity is reduced to the cube of the thickness remaining and becomes extremely small, the self-weight of the flexible base material 3 below the kerf is relatively increased to exhibit a better self-adaptation function. It is. In the above embodiment, a rectangular flooring material has been described. However, even if the building flooring material has a shape in which a plurality of strip-like flooring materials are juxtaposed and arranged in an echelon-like shape, the present invention can be applied to a building flooring material. The above structure of the invention can be provided. Next, specific examples and comparative examples of the present invention will be described. [Example] 4-ply plywood with a thickness of 5.5 mm and a thickness of 910 mm long, 91 mm wide and 1.2 mm thick oak veneer laminated on the surface (specific gravity)
0.65) On the back of the wooden decorative board, 2.5mm deep grooves are provided at 15mm intervals, and 4mm thick calcium carbonate mixed recycled PVC (specific gravity 1.8mm) is laminated and integrated using one-part urethane adhesive. A floor material with four sides processed to sexes was obtained. [Example 2] A wood decorative veneer was used except that a 1.2 mm thick veneer veneer was used on the surface, a 5-ply plywood (specific gravity: 0.7) having a thickness of 10 mm was used, and the groove depth was 7.5 mm. Same as 1. [Comparative Example 1] A wood decorative veneer was used as a wood decorative veneer, with a 0.3 mm thick oak veneer veneer on the surface, a 6-ply plywood (9 mm thick) including the surface material (specific gravity 0.7), and a kerf depth of 6.5 mm. Example 1 was the same as Example 1 except that a flexible base material having a thickness of 3 mm and a specific gravity of 1.6 was used. When the floor materials obtained in the above Examples 1 and 2 and Comparative Example 1 were placed on a concrete slab without using an adhesive, 40 sheets (1 tsubo) were obtained. The material did not lift or sound on the floor, but the floor material of the comparative example raised or sounded on the floor. The floor materials of Example 1 and Comparative Example 1 were supported at a span of 80 cm and the deflection under their own weight was measured. The difference was 41 mm for the former and 9 mm for the latter, and this difference was the difference in floor adaptability. As described above, according to the architectural flooring material of the present invention, a plurality of cut grooves having an appropriate depth are provided at small intervals on the lower surface, which communicate with each other between the parallel side end faces. In the case of an architectural flooring composed of a wood decorative board provided with flexibility by way of these cut grooves and a flexible base material having bending elasticity in which the wooden decorative board is integrally laminated on the upper surface, Since the product of the specific gravity and the thickness of the flexible base material is larger than the product of the specific gravity thickness of the wooden decorative board and the center of gravity is located in the flexible base material, the wooden decorative board is warped. Even if a twist or twist occurs, the warp or twist can be corrected by the weight of the flexible base material. Therefore, when this floor material is laid on the floor substrate, even if the floor substrate surface has unevenness or a curved surface, the flexible base material is adapted and deformed according to the floor surface shape, and the wood decorative material is used. The board is deformed integrally with the flexible base material according to its familiar deformation, and it can reliably absorb irregularities on the floor base without applying external force from above, and also lift up from the floor base This makes it possible to walk satisfactorily without causing floor noise or the like. Further, by simply placing the flooring material directly on the flooring surface without using an adhesive, the entire flooring material can be deformed according to the floor surface shape of the flooring base as described above. not only the construction work efficiency a simple is significantly improved, provided at one end of the long side of the floor material
The male part has a wood-based makeup with a kerf exposed in the upper half.
The lower half is flexible, formed by a thin section of the plate
The upper half of the male part is formed by the thin section of the base material
Part is formed from a thin section of a wooden decorative board.
Instead, flexibility can be imparted by kerfs,
Above, the thin section of the wooden decorative board provided with this cut groove is flexible.
To prevent breakage and breakage
And the male and female real parts of the floor material
When installing by combining
Is provided with a thin section made of a flexible base material as described above.
On the other hand, the lower protruding wall of the female part is also formed from a flexible base material.
The flooring is slightly deformed and deformed.
Also, the thin section and the protruding wall are elastic according to the distortion shape.
Close contact while deforming, it is possible to accurately join the joint end surfaces of the floor materials , and it is possible to perform accurate construction without generating gaps or steps, and it is possible to form a stable beautiful floor finish surface . Further, at the time of floor material replacement, it is easy to remove the floor material from the floor base, and the replacement work can be performed efficiently.
【図面の簡単な説明】 【図１】本発明床材の一部を断面した斜視図、 【図２】その施工状態を示す一部拡大断面図、 【図３】従来の床材の一部縦断面図。 【符号の説明】 １ 木質化粧板 ２ 切溝 ３ 可撓性基材 ４ 接着剤 ５ 雄実部 ６ 雌実部[Brief description of the drawings] FIG. 1 is a perspective view of a part of the flooring material of the present invention, FIG. 2 is a partially enlarged cross-sectional view showing the construction state; FIG. 3 is a partial longitudinal sectional view of a conventional floor material. [Explanation of symbols] 1 Wooden veneer 2 kerf 3 Flexible substrate 4 adhesive 5 Yumibu 6 Female part
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 平５−230985（ＪＰ，Ａ) 実開 平２−141048（ＪＰ，Ｕ) (58)調査した分野(Int.Cl.7，ＤＢ名) E04F 15/04 ──────────────────────────────────────────────────続 き Continuation of front page (56) References JP-A-5-230985 (JP, A) JP-A-2-141048 (JP, U) (58) Fields investigated (Int. Cl. 7 , DB name) E04F 15/04
Claims (1)
さの切溝を下面に小間隔毎に複数条設けることによりこ
れらの切溝を介して可撓性を付与された木質化粧板と、
上面にこの木質化粧板を一体に積層した曲げ弾性を有す
る可撓性基材とからなる建築用床材において、可撓性基
材の比重と厚みとの積を木質化粧板の比重と厚みとの積
よりも大きくして重心を可撓性基材内に位置させている
と共に、床材の長辺側の一側端部には、上記木質化粧板
の一側端部をその下層部を残してＬ字状に切欠く一方、
可撓性基材の一側端部をその上層部を残して逆Ｌ字状に
切欠くことによって上半部が上記切溝を露出させた木質
化粧板の薄片部からなり、下半部が上記可撓性基材の薄
片部からなる雄実部が形成されてあり、床材の長辺側の
他側端部には、その他端面中央部を断面コ字状の条溝形
状に削成して、上方の突出壁が上記木質化粧板よりな
り、下方の突出壁が可撓性基材よりなる雌実部を形成し
ていることを特徴とする建築用床材。(57) [Claims 1] A plurality of incisions of appropriate depth are provided at small intervals on the lower surface, which communicate with each other between the parallel side end faces. A wood decorative board with flexibility,
The wood veneer in the construction flooring comprising a flexible substrate having a flexural modulus which is integrally laminated on the upper surface, the product of the specific gravity and thickness of the flexible substrate and the specific gravity and thickness of the wood veneer And the center of gravity is positioned within the flexible substrate
At the same time, on one end of the long side of the flooring,
While one side end is cut out in an L-shape leaving its lower layer,
One end of the flexible substrate is formed into an inverted L-shape leaving its upper layer
Wooden material with the upper half exposing the kerf by notching
It consists of a lamella part of a decorative board, and the lower half is a lamella of the flexible base material.
A male part consisting of one part is formed, and the long side of the floor material
At the other end, the center of the other end face is a U-shaped groove
And the upper projecting wall is
The lower projecting wall forms a female part made of a flexible base material.
A flooring material for building, characterized in that:
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15160493A JP3378300B2 (en) | 1993-05-29 | 1993-05-29 | Architectural flooring |
| US08/198,264 US5540025A (en) | 1993-05-29 | 1994-02-18 | Flooring material for building |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15160493A JP3378300B2 (en) | 1993-05-29 | 1993-05-29 | Architectural flooring |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06336816A JPH06336816A (en) | 1994-12-06 |
| JP3378300B2 true JP3378300B2 (en) | 2003-02-17 |
Family
ID=15522168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15160493A Expired - Lifetime JP3378300B2 (en) | 1993-05-29 | 1993-05-29 | Architectural flooring |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3378300B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5972452A (en) * | 1993-12-07 | 1999-10-26 | Mitsubishi Gas Chemical Company, Inc. | Sheet shaped oxygen absorbing member and method for manufacture thereof |
| JP3741484B2 (en) * | 1996-06-11 | 2006-02-01 | 東ソー株式会社 | Flooring material, flooring material for flooring and method for manufacturing flooring material |
| DE69813069T2 (en) * | 1997-02-19 | 2004-01-29 | Mitsubishi Gas Chemical Co | Label-shaped oxygen absorbent |
-
1993
- 1993-05-29 JP JP15160493A patent/JP3378300B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06336816A (en) | 1994-12-06 |
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