JP3659060B2 - Soundproof flooring with floor heating function - Google Patents

Soundproof flooring with floor heating function Download PDF

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Publication number
JP3659060B2
JP3659060B2 JP11570999A JP11570999A JP3659060B2 JP 3659060 B2 JP3659060 B2 JP 3659060B2 JP 11570999 A JP11570999 A JP 11570999A JP 11570999 A JP11570999 A JP 11570999A JP 3659060 B2 JP3659060 B2 JP 3659060B2
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Japan
Prior art keywords
floor heating
heating function
flooring
floor
soundproof
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JP11570999A
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JP2000303672A (en
Inventor
典利 亀山
宏明 碓氷
悟 小西
浩司 南
力 渡辺
有弘 足立
紀夫 能間
宗一郎 川田
政介 塚本
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Panasonic Electric Works Co Ltd
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Matsushita Electric Works Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は床スラブ等の上に直貼りできる床暖房機能付防音床材に関するものである。
【0002】
【従来の技術】
一般に直貼り防音床は、床材を建築物の床スラブ等の上に直接貼り付ける工法で施工されるものであり、主に軽量床衝撃音を低減することを目的としており、床表面に加わる衝撃力を緩和し、階下に伝わる衝撃音を低減するものである。
【0003】
従来、この種の直貼りの防音床の施工に用いる木質の防音床材は、板材部に溝を設けることにより曲げ剛性を低減させる、クッション材を積層させることにより床全体の総合的な単位面積当たりのバネ定数を低減させる、制振材を積層させることにより衝撃により発生した振動を減衰させる、などの方策により衝撃緩和作用をもたらし防音性能を向上させている。
【0004】
また、床暖房については表面材の裏面側に暖房手段を埋設した床暖房パネルは周知である。
【0005】
【発明が解決しようとする課題】
しかしながら、現行の木質の防音床材はバネ定数や曲げ剛性を低減させて防音性能を向上させているために歩行感が悪くなるという問題を生じやすく、また従来の床暖房パネルには防音性能が防音性能が考慮されていないため、コンクリートの床スラブなどの建築物上に直貼りすることができず、防音性能を得るためには床暖房機能を有するパネルの上に現行の直貼り防音床材を貼る必要があった。このため床としての総厚が周辺の床暖房機能を持たない床材と比較して厚くなるため、マンションなどの集合住宅などでは直貼り工法による床暖房が不可能であった。
【0006】
さらに主に合板を基材に使用しているために湿度による寸法変化を生じやすく、吸湿による突き上げや乾燥による目隙、表面化粧材のクラック発生などの問題を生じやすく、表面もあまり平滑でないためにV溝へのストッキング、靴下の引っ掛かりなどを生じやすいという問題がある。
【0007】
本発明は上記の点に鑑みてなされたものであり、防音性能を得ながら歩行感を改善し、コンクリートの床スラブにも直貼りが可能で、マンションなどの床暖房を可能にさせ、しかも表面硬度や平滑性を向上でき、温湿度に対する寸法安定性を向上できる床暖房機能付防音床材を提供するにある。
【0008】
【課題を解決するための手段】
上記課題を解決するための本発明の請求項1の床暖房機能付防音床材は、表層材1とクッション材2とを少なくとも備えた防音床材であって、繊維ボードからなるクッション材2は上層2aと下層2bからなると共に上層2aを下層2bに対して硬度を高くし、硬度の高い上層2aに温水パイプのような床暖房手段3を埋設したことを特徴とする。上記のようにクッション材3に暖房手段を収納したことにより、防音性能を得ながら歩行感を改善し、コンクリートの床スラブにも直貼り可能で、マンションなどの床暖房を可能にさせることができる。しかも表面硬度や平滑性を向上でき、温湿度に対する寸法安定性を向上できる。また上層2aの硬度を下層2bに対して高くすることで床材としての耐荷重性を満足させながら、下層2bのクッション性を上層2aに対して高くすることでクッション材2自体の総合的な単位面積当たりのバネ定数の低減が図れ、防音性能を向上させることができる。
【0009】
また本発明の請求項2の床暖房機能付防音床材は、請求項1において、床暖房手段は温水あるいは電気による熱源を利用したことを特徴とする。クッション材2に温水パイプやコードヒータ、感熱線ヒータのような線状ヒータ、フィルムヒータのような面状ヒータを収納することで、防音性能と暖房機能を有したクッション材2を得ることができる。これにより外部の温水源と電源とを接続することで、簡単に床暖房機能を備えた防音床材を得ることができる。
【0010】
また本発明の請求項3の床暖房機能付防音床材は、請求項1において、表層材1は少なくとも木粉樹脂複合材4と表面化粧単板5よりなることを特徴とする。表層材1が木粉樹脂複合材4を有するため、硬度が高く平滑な平面が得られる。また木粉樹脂複合材4は合板などと比較して温湿度に対する寸法安定性が高い材料であり、目隙、突き上げ、表面化粧単板5のクラック発生などが低減される。
【0011】
また本発明の請求項4の床暖房機能付防音床材は、請求項1において、表層材1はクッション材2と分離可能となっていることを特徴とする。この構成により、クッション材2のサイズを表層材1のサイズより大きくすることで、床暖房機能部分の接続箇所を低減することができ、クッション材2を施工した後に表層材1を接着あるいはその他の手段で貼り込んで行くことができる。また表層材1を粘着材などの再剥離可能な手段で止めることで、リフォーム時には表層材1のみをを貼り替えることができ、省施工化が図れる。
【0012】
また本発明の請求項5の床暖房機能付防音床材は、請求項1において、表層材1はクッション材2と一体となっていることを特徴とする。この構成により、床暖房機能付防音床材を現行の直貼り防音床材と同様の方法で施工することができる。
【0014】
【発明の実施の形態】
床暖房機能付防音床材Aは図1乃至図3に示すようにクッション材2の上に表層材1を積層し、クッション材2に床暖房手段3を収納して形成されている。床暖房手段3としては温水パイプ3aやコードヒータ、感熱線ヒータのような線状ヒータ、フィルムヒータのような面状ヒータ等があるが、本例の場合、温水パイプ3aをクッション材2に埋設してある。クッション材2の上に表層材1を積層するとき、アルミニウムのような均熱板6を介して積層してある。そしてこの床暖房機能付防音床材Aはコンクリートよりなる床スラブ7の上に直貼りして敷設されるようになっている。
【0015】
この床暖房機能付防音床材Aのクッション材2としては麻、綿、パーム、合成繊維、バインダー等からなる繊維ボードを使用する。これによりクッション材2の厚さ、比重の調整、表面への加工などに自由度が出るため、クッション材2自体の総合的な単位面積当たりのバネ定数の低減による防振効果と繊維系材料による制振効果が容易に得られ、防音性能を向上させることができると共に、歩行感、荷重に対する耐へこみ性を向上させることができる。
【0016】
またクッション材2としての繊維ボードは裏面にエンボスのような複数個の凸部8を有し、総厚が少なくとも9mm以上で(望ましくは総厚が9〜15mm)、比重が0.2〜0.3で、バネ定数が1.5×10〜1.5×10N/m/mで、損失係数が125〜500Hzで0.2以上が望ましい。繊維ボードの比重を0.2〜0.3としたのは、比重が上記数値より低くなると、歩行感が悪くなると共に耐荷重性が低下するためであり、比重が上記数値より高くなると防音性能が低下すると共に床暖房機能付防音床材Aを大サイズにすると重くなるという問題があるためである。また繊維ボードの総厚を9〜15mmとしたのは、9mm以下では防音性能が低下するためであり、厚さを厚くし過ぎると既存のフロアーとの納まりが悪いためである。繊維ボードの裏面にエンボスのような複数個の凸部8が有ると、エンボスのような凸部8に局所的に力が作用することでバネによる防振効果が高まり、図1や図2に示すような形状でL値が約3低下する。バネ定数を1.5×10〜1.5×10N/m/mとしたのは、バネ定数が1.5×10N/m/m以下であると、歩行感や耐荷重性が低下するためであり、バネ定数が1.5×10N/m/m以上とすると防音性能が出ないためである。損失係数(振動が内部で熱エネルギーに変換されて振動エネルギーが減衰する量)が125〜500Hzで0.2以上とするのは0.2以下になると防音性能の作用が小さいためである。損失係数が大きくなり過ぎると、軟らかくなると共に剥離の可能性が生じるためである。
【0017】
また図1や図2に示すように繊維ボードよりなるクッション材2を上層2aと下層2bとの2層構造としてある。このとき上層2aは下層2bに対して硬度が高く、下層2bは上層2aに対してクッション性が高い。このように上層2aの硬度を下層2bに対して高くすることで床材としての耐荷重性を満足させながら、下層2bのクッション性を上層2aに対して高くすることでクッション材2自体の総合的な単位面積当たりのバネ定数の低減が図れ、防音性能を向上させることができる。また下層2bは上層2aよりパーム量を減少させるとともに、そのぶん極短繊維を配合することも好ましい。上層2aのパーム量を下層2bに対して高くすることで床材として耐荷重性を満足させ、下層2bのパーム量を減少させた分、極短繊維を配合することで、繊維の絡みをよくしてクッション材2の層間剥離強度を高めながら、クッション性を高めてクッション材2自体の総合的な単位面積当たりのバネ定数の低減が図れ、防音性能を向上させることができる。
【0018】
またクッション材2として用いる繊維ボードは断熱性も優れているため、コンクリートの床スラブ7の上に直貼りしても効率よく表層材1を加熱し、床暖房の性能を出すことができる。
【0019】
また図1の例では表層材1は木粉樹脂複合材4の表面に表面化粧単板5を積層して形成されている。木粉樹脂複合材4の裏面には複数の切り溝10を穿設してある。表層材1が木粉樹脂複合材4を有するため、硬度が高く平滑な平面が得られる。また木粉樹脂複合材4は合板などと比較して温湿度に対する寸法安定性が高い材料であり、目隙、突き上げ、表面化粧単板5のクラック発生などが低減される。この木粉樹脂複合材4とは、木粉と熱可塑性樹脂が配合されたものである。ここで、木粉樹脂複合材4の全量に対する木粉の配合比は20〜70%(重量比)が望ましく、配合される熱可塑性樹脂としては、例えばポリプロピレン、ポリエチレン等のオレフィン系熱可塑性樹脂が使用される。さらに十分な表面硬度を得るためには木粉樹脂複合材4層の厚さは2mm以上が望ましい。また図2の例では表層材1は合板9の上に表面化粧単板5を積層して形成されている。合板9は裏面に複数の切り溝10を穿設してある。
【0020】
また床暖房機能付防音床材Aはクッション材2の上に表層材1を並べて接続されるのであるが、隣り合う表層材1は木粉樹脂複合材4や合板9の端面に設けた雌実11aと雄実11bとによりなる実部11を実結合して接続される。
【0021】
また床暖房機能付防音床材Aの表層材1はクッション材2と分離可能となっていることが望ましい。この場合、クッション材2のサイズを表層材1のサイズより大きくすることで、床暖房機能部分の接続箇所を低減することができ、クッション材2を施工した後に表層材1を接着あるいはその他の手段で貼り込んで行くことができる。また表層材1を粘着材などの再剥離可能な手段で止めることで、リフォーム時には表層材1のみをを貼り替えることができ、省施工化が図れる。また表層材1はクッション材2と一体となっていることも好ましい。この場合、床暖房機能付防音床材Aを現行の直貼り防音床材Bと同様の方法で施工することができる。床暖房機能付防音床材Aのクッション材2と表層材1とが一体の場合、図4に示すように床スラブ7の上に敷設でき、床暖房機能付防音床材Aのクッション材2と表層材1とが分離可能の場合、図5に示すようにクッション材2を敷設してから表層材1を敷設できる。
【0022】
また図3の例の場合、部屋の周辺はクッション材2に床暖房手段を有しない防音床材A′が敷設され、床暖房の必要な箇所にのみ床暖房機能付防音床材Aが敷設されている。
【0023】
なお、図6は現行のLL−45レベルの木質直貼り防音床材Bの市販品の構成図である。クッション材2′の表面側には合板9′を貼ってあり、合板9′の表面側には表面化粧材5を貼ってあり、合板9′の裏面側には切り溝10′を設けてある。この防音床材Bが床スラブ7の上に敷設されている。隣り合う防音床材Bは雌実11a′と雄実11b′よりなる実部11′の嵌合で接続される。
【0024】
以下、本発明を実施例により詳述する。
[実施例1]
厚さ11.5mmの繊維ボードの表面に厚さ300μmのアルミニウム箔、厚さ3mmの木粉樹脂複合材、紙間強度を向上させた厚さ70μmの強化紙、厚さ0.25mmの表面化粧単板を順次積層する。繊維ボードは上層が厚さ5.5mm、比重0.3で、重量比でパーム30%、極細麻20%、雑綿15%、オレフィン系バインダー35%の組成からなり、下層が厚さ6.0mm、比重0.2で、裏面に高さ1.5mm、10mmφの球面状エンボスが13mmのピッチで加工されており、重量比でパーム10%、極細麻20%、雑綿15%、極短繊維20%、オレフィン系バインダー35%の組成からなる。繊維ボードの内部には7.2mmφの架橋ポリエチレン製温水パイプが内蔵されている。アルミニウム箔は繊維ボードの表面に接着されている。木粉樹脂複合材は木粉とポリプロピレンを30:70(重量比)で配合したもので、裏面には深さ1mm、幅2mmで幅方向に切られた溝が長手方向に30mmのピッチで入っている。強化紙は目付50g/mで木粉樹脂複合材とは熱融着で貼り合わされている。表面化粧単板は強化紙に接着される。表面は現行床材と同様のウレタン塗装仕上げとする。木粉樹脂複合材とアルミニウム箔の界面は粘着材により固定する。粘着材としてはアクリル系両面テープ{日東電工(株)No.501K}を用いる。上記のようにして図1に示すような構造に構成した実施例1の床暖房機能付防音床材と、図6に示すような構造の現行のLL−45レベルの木質直貼り防音床材(市販品)との評価を以下に示す。
[実施例2]
厚さ11.5mmの繊維ボードの表面に厚さ300μmのアルミニウム箔、厚さ5mmの合板、厚さ0.25mmの表面化粧単板を順次積層する。繊維ボードは上層が厚さ5.5mm、比重0.3で、重量比でパーム30%、極細麻20%、雑綿15%、オレフィン系バインダー35%の組成からなり、下層が厚さ6.0mm、比重0.2で、裏面に高さ1.5mm、10mmφの球面状エンボスが13mmのピッチで加工されており、重量比でパーム10%、極細麻20%、雑綿15%、極短繊維20%、オレフィン系バインダー35%の組成からなる。繊維ボードの内部には7.2mmφの架橋ポリエチレン製温水パイプが内蔵されている。アルミニウム箔は繊維ボードの表面に接着されている。合板は厚さ2.5mmの3プライ合板2枚を互いに直交方向に積層したもので、裏面には深さ2mm、幅1mmで幅方向に切られた溝が長手方向に12mmのピッチで入っている。表面化粧単板は合板の最表面の繊維方向と直交する方向に接着される。表面は現行床材と同様のウレタン塗装仕上げとする。合板とアルミニウム箔の界面は粘着材により固定する。粘着材としてはアクリル系両面テープ{日東電工(株)No.501K}を用いる。上記のようにして図2に示すような構造に構成した実施例2の床暖房機能付防音床材と、図6に示すような構造の現行のLL−45レベルの木質直貼り防音床材(市販品)との評価を以下に示す。
【0025】
そして軽量床衝撃音レベル、圧縮試験、キャスター試験等の試験の結果を表1に示す。
【0026】
【表1】

Figure 0003659060
【0027】
この結果、本発明の実施例の構成により、床暖房機能を有し軽量床衝撃音レベルがL−45レベルでありながら、歩行感、キャスターなどによる凹みが改善されることがわかる。また表層材に木粉樹脂複合材を用いることで、寸法安定性、耐クラック性も改善することができることがわかる。
【0028】
また実施例1、2において、耐荷重性、表層材の実部の強度の評価結果を以下の表2に示す。
【0029】
【表2】
Figure 0003659060
【0030】
表層材が合板の場合は、厚さ2.5mmの3プライ合板2枚を直交方向に積層して6プライにすることにより、上から3〜5プライ部分に実を切ることで十分な実強度が得られ、また裏面に深さ2〜3mmの溝を切っても表面から3プライ残るため、十分な強度が得られる。表層材が木粉樹脂複合材の場合は、木粉樹脂複合材自体に十分な強度が得られ、合板を用いるよりも表層材を薄くできる。
【0031】
実施例1、2の繊維ボードについて、JISK−6385に従って測定した静的バネ定数、片持ち梁における加振力と振動加速度から得られる共振特性より算出した損失係数を表3に示す。
【0032】
【表3】
Figure 0003659060
【0033】
繊維ボードは、それ自体のバネ定数が小さい上に裏面のエンボス部に局部的に力が作用して防振効果を高めており、それと同時に床衝撃音において防音性能を決定する低周波数領域のうち、125Hz、250Hz付近での損失係数が大きいため、クッション材自体の総合的な単位面積当たりのバネ定数の低減による防振効果と繊維系材料による制振効果が容易に得られる。
【0034】
さらに2種類の組成の2層構成の繊維ボード、及び比重0.15、厚さ9mm、裏面に高さ1.5mm、10mmφの球面状のエンボスが13mmのピッチで加工された単層構成ボードについての剥離強度の結果を表4に示す。
【0035】
【表4】
Figure 0003659060
【0036】
(2)の組成が実施例1、2の繊維ボードであるが、下層のパーム量を減少させたぶん極短繊維を配合することで、(1)と比較して繊維間の絡みをよくしてクッション材の層間剥離強度を高めながら、クッション性を高めてクッション材自体の総合的な単位面積当たりのバネ定数の低減が図れ、防音性能を向上させることができる。
【0037】
さらに単層構成の繊維ボードを比重0.15にすると(3)のように剥離強度が十分でなく、比重を0.3にすると防音性能がL−55レベルとなるため、繊維ボードの比重としては0.2〜0.3が望ましい。
【0038】
また集合住宅などではドアなどの開口部との取り合いの関係から厚さ15mm以下の床材が望ましいが、実施例1の繊維ボードの総厚を6.0mmとすると防音性能がL−50レベルとなるため、繊維ボードの総厚は9〜15mmが望ましい。
【0039】
【発明の効果】
本発明の請求項1の発明は、表層材とクッション材とを少なくとも備えた防音床材であって、クッション材に床暖房手段を収納したので、防音性能を得ながら歩行感を改善し、コンクリートの床スラブにも直貼り可能で、マンションなどの床暖房を可能にさせることができるものであり、しかも表面硬度や平滑性を向上でき、温湿度に対する寸法安定性を向上できるものである。また上層の硬度を下層に対して高くすることで床材としての耐荷重性を満足させながら、下層のクッション性を上層に対して高くすることでクッション材自体の総合的な単位面積当たりのバネ定数の低減が図れ、防音性能を向上させることができるものである。
【0040】
また本発明の請求項2の発明は、請求項1において、床暖房手段は温水あるいは電気による熱源を利用したので、クッション材に温水パイプやコードヒータ、感熱線ヒータのような線状ヒータ、フィルムヒータのような面状ヒータを収納することで、防音性能と暖房機能を有したクッション材を得ることができるものであり、これにより外部の温水源と電源とを接続することで、簡単に床暖房機能を備えた防音床材を得ることができるものである。
【0041】
また本発明の請求項3の発明は、請求項1において、表層材は少なくとも木粉樹脂複合材と表面化粧単板よりなるものであって、表層材が木粉樹脂複合材を有するため、硬度が高く平滑な平面が得られるものであり、また木粉樹脂複合材は合板などと比較して温湿度に対する寸法安定性が高い材料であり、目隙、突き上げ、表面化粧単板のクラック発生などが低減されるものである。
【0042】
また本発明の請求項4の発明は、請求項1において、表層材はクッション材と分離可能となっているので、クッション材のサイズを表層材のサイズより大きくすることで、床暖房機能部分の接続箇所を低減することができ、クッション材を施工した後に表層材を接着あるいはその他の手段で貼り込んで行くことができるものであり、また表層材を粘着材などの再剥離可能な手段で止めることで、リフォーム時には表層材のみをを貼り替えることができ、省施工化が図れるものである。
【0043】
また本発明の請求項5の発明は、請求項1において、表層材はクッション材と一体となっているので、床暖房機能付防音床材を現行の直貼り防音床材と同様の方法で施工することができるものである。
【図面の簡単な説明】
【図1】本発明の一例の床暖房機能付防音床材を示す断面図である。
【図2】同上の他例の床暖房機能付防音床材を示す断面図である。
【図3】 同上の床暖房機能付防音床材を施工する状態を示す斜視図である。
【図4】 同上の表層材とクッション材が一体の床暖房機能付防音床材を敷設する状態を示す斜視図である。
【図5】 同上の表層材とクッション材とを分離した床暖房機能付防音床材を敷設する状態を示す斜視図である。
【図6】 現行の防音床材の構造を示す断面図である。
【符号の説明】
A 防音床材
1 表層材
2 クッション材
3 床暖房手段
4 木粉樹脂複合材
5 表面化粧単板[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a soundproof flooring with a floor heating function that can be directly pasted on a floor slab or the like.
[0002]
[Prior art]
In general, soundproofing floors that are directly attached are constructed by a method of attaching flooring materials directly onto building floor slabs, etc., and are mainly intended to reduce lightweight floor impact noise and are added to the floor surface. It reduces the impact force and reduces the impact sound transmitted downstairs.
[0003]
Conventionally, wooden soundproof flooring materials used for the construction of this kind of directly soundproofed flooring are designed to reduce bending rigidity by providing grooves in the plate material part, and by combining cushioning materials, the overall unit area of the entire floor The measures such as reducing the spring constant per hit and damping the vibration generated by the impact by laminating the damping material provide the impact mitigating action and improve the soundproof performance.
[0004]
For floor heating, a floor heating panel in which heating means is embedded on the back side of the surface material is well known.
[0005]
[Problems to be solved by the invention]
However, the current wooden soundproof flooring has improved the soundproofing performance by reducing the spring constant and bending rigidity, so it tends to cause a problem that the feeling of walking becomes worse, and the conventional floor heating panel has a soundproofing performance. Since soundproofing performance is not taken into consideration, it cannot be directly pasted on buildings such as concrete floor slabs. It was necessary to stick. For this reason, since the total thickness as a floor becomes thick compared with the surrounding floor material which does not have a floor heating function, the floor heating by the direct pasting method was impossible in apartment houses, such as an apartment.
[0006]
In addition, because plywood is mainly used as the base material, it tends to cause dimensional changes due to humidity, and problems such as push-up due to moisture absorption, gaps due to drying, and cracks in surface decorative materials are likely to occur, and the surface is not very smooth. In addition, there is a problem that stockings in the V-grooves and socks are easily caught.
[0007]
The present invention has been made in view of the above points, improves the feeling of walking while obtaining soundproof performance, can be directly attached to a concrete floor slab, enables floor heating of an apartment, etc. The object is to provide a soundproof flooring with a floor heating function capable of improving hardness and smoothness and improving dimensional stability against temperature and humidity.
[0008]
[Means for Solving the Problems]
The soundproof flooring with floor heating function according to claim 1 of the present invention for solving the above problems is a soundproofing flooring comprising at least a surface material 1 and a cushioning material 2, and the cushioning material 2 made of a fiber board comprises: The upper layer 2a is composed of an upper layer 2a and a lower layer 2b, and the upper layer 2a is harder than the lower layer 2b, and a floor heating means 3 such as a hot water pipe is embedded in the upper layer 2a having high hardness . By storing the heating means in the cushion material 3 as described above, the feeling of walking can be improved while obtaining soundproofing performance, and it can be directly pasted on a concrete floor slab, and floor heating of an apartment can be made possible. . In addition, surface hardness and smoothness can be improved, and dimensional stability against temperature and humidity can be improved. In addition, the hardness of the upper layer 2a is higher than that of the lower layer 2b, while the load resistance as a flooring material is satisfied. The spring constant per unit area can be reduced and the soundproofing performance can be improved.
[0009]
The soundproof flooring with floor heating function according to claim 2 of the present invention is characterized in that, in claim 1, the floor heating means uses a heat source by hot water or electricity. By storing a linear heater such as a hot water pipe, a cord heater, or a heat sensitive wire heater, or a planar heater such as a film heater in the cushion material 2, the cushion material 2 having soundproof performance and a heating function can be obtained. . Thereby, a soundproof flooring having a floor heating function can be easily obtained by connecting an external hot water source and a power source.
[0010]
The soundproof flooring with floor heating function according to claim 3 of the present invention is characterized in that, in claim 1, the surface layer material 1 comprises at least a wood powder resin composite material 4 and a surface decorative veneer 5. Since the surface layer material 1 has the wood powder resin composite material 4, a smooth flat surface is obtained with high hardness. Further, the wood powder resin composite material 4 is a material having high dimensional stability with respect to temperature and humidity as compared with a plywood or the like, and the occurrence of gaps, push-ups, cracks in the surface decorative veneer 5 and the like are reduced.
[0011]
The soundproof flooring with floor heating function according to claim 4 of the present invention is characterized in that, in claim 1, the surface layer material 1 is separable from the cushion material 2. With this configuration, the size of the cushion material 2 can be made larger than the size of the surface material 1 to reduce the number of connecting portions of the floor heating function part. You can paste by means. Moreover, by stopping the surface layer material 1 with a releasable means such as an adhesive material, only the surface layer material 1 can be replaced at the time of renovation, and the construction can be saved.
[0012]
The soundproof flooring with floor heating function according to claim 5 of the present invention is characterized in that, in claim 1, the surface material 1 is integrated with the cushion material 2. With this configuration, the soundproof flooring with floor heating function can be constructed in the same manner as the current direct-bonded soundproofing flooring.
[0014]
DETAILED DESCRIPTION OF THE INVENTION
As shown in FIGS. 1 to 3 , the soundproof floor material A with a floor heating function is formed by laminating a surface layer material 1 on a cushion material 2 and housing the floor heating means 3 on the cushion material 2. As the floor heating means 3, there are a hot water pipe 3a, a cord heater, a linear heater such as a heat sensitive wire heater, and a planar heater such as a film heater. In this example, the hot water pipe 3a is embedded in the cushion material 2. It is. When the surface material 1 is laminated on the cushion material 2, it is laminated via a soaking plate 6 such as aluminum. The soundproofing flooring A with a floor heating function is laid directly on a floor slab 7 made of concrete.
[0015]
As the cushioning material 2 of the soundproofing flooring A with floor heating function, a fiber board made of hemp, cotton, palm, synthetic fiber, binder or the like is used. As a result, the cushioning material 2 has a degree of freedom in adjusting the thickness, specific gravity, processing on the surface, etc. Therefore, the vibration damping effect by the reduction of the spring constant per unit area of the cushioning material 2 itself and the fiber material The vibration damping effect can be easily obtained, the soundproofing performance can be improved, and the walking feeling and the dent resistance against the load can be improved.
[0016]
The fiber board as the cushion material 2 has a plurality of convex portions 8 such as embosses on the back surface, has a total thickness of at least 9 mm (preferably a total thickness of 9 to 15 mm), and a specific gravity of 0.2 to 0. .3, a spring constant of 1.5 × 10 6 to 1.5 × 10 7 N / m / m 2 and a loss factor of 125 to 500 Hz are preferably 0.2 or more. The reason why the specific gravity of the fiber board is set to 0.2 to 0.3 is that when the specific gravity is lower than the above numerical value, the feeling of walking is deteriorated and the load resistance is lowered, and when the specific gravity is higher than the above numerical value, the soundproofing performance. This is because there is a problem that when the size of the soundproof flooring A with a floor heating function is increased, the sound becomes heavy. The total thickness of the fiber board is set to 9 to 15 mm because the soundproofing performance is lowered when the thickness is 9 mm or less, and when the thickness is excessively thick, the existing floor is not fit. When there are a plurality of convex portions 8 such as embossed on the back surface of the fiber board, the vibration-proofing effect by the spring is increased by locally acting on the convex portions 8 such as embossed, and FIG . 1 and FIG. The L value decreases by about 3 in the shape as shown. The reason why the spring constant is 1.5 × 10 6 to 1.5 × 10 7 N / m / m 2 is that when the spring constant is 1.5 × 10 6 N / m / m 2 or less, This is because the load resistance is lowered, and if the spring constant is 1.5 × 10 7 N / m / m 2 or more, the soundproof performance is not obtained. The loss coefficient (amount of vibration energy that is attenuated by vibration being converted into thermal energy internally) is 0.2 or more at 125 to 500 Hz because the effect of soundproofing performance is small when 0.2 or less. This is because if the loss factor is too large, the loss factor becomes soft and the possibility of peeling occurs.
[0017]
Moreover, as shown in FIG.1 and FIG.2, the cushioning material 2 which consists of a fiber board is made into the 2 layer structure of the upper layer 2a and the lower layer 2b. At this time, the upper layer 2a has a higher hardness than the lower layer 2b, and the lower layer 2b has a higher cushioning property than the upper layer 2a . In this way, by increasing the hardness of the upper layer 2a relative to the lower layer 2b, while satisfying the load resistance as a flooring material, the cushioning property of the lower layer 2b is increased relative to the upper layer 2a, so that the cushion material 2 itself is integrated. The spring constant per unit area can be reduced, and the soundproofing performance can be improved. In addition, the lower layer 2b is preferable to reduce the amount of palm as compared with the upper layer 2a and to mix the very short fibers. The amount of palm of the upper layer 2a is made higher than that of the lower layer 2b to satisfy load resistance as a flooring material, and the amount of palm of the lower layer 2b is reduced, so by blending extremely short fibers, the fiber entanglement is improved. Thus, while increasing the delamination strength of the cushioning material 2, the cushioning property can be improved, the spring constant per unit area of the cushioning material 2 itself can be reduced, and the soundproofing performance can be improved.
[0018]
Moreover, since the fiber board used as the cushion material 2 is also excellent in heat insulation, the surface layer material 1 can be efficiently heated and the performance of the floor heating can be obtained even if it is directly pasted on the concrete floor slab 7.
[0019]
In the example of FIG. 1 , the surface layer material 1 is formed by laminating a surface decorative veneer 5 on the surface of a wood powder resin composite material 4. A plurality of kerfs 10 are formed on the back surface of the wood powder resin composite material 4. Since the surface layer material 1 has the wood powder resin composite material 4, a smooth flat surface is obtained with high hardness. Further, the wood powder resin composite material 4 is a material having high dimensional stability with respect to temperature and humidity as compared with a plywood or the like, and the occurrence of gaps, push-ups, cracks in the surface decorative veneer 5 and the like are reduced. This wood powder resin composite material 4 is a mixture of wood powder and thermoplastic resin. Here, the blending ratio of the wood flour with respect to the total amount of the wood flour resin composite material 4 is desirably 20 to 70% (weight ratio), and examples of the thermoplastic resin to be blended include olefinic thermoplastic resins such as polypropylene and polyethylene. used. Further, in order to obtain a sufficient surface hardness, the thickness of the four layers of the wood powder resin composite material is desirably 2 mm or more. In the example of FIG. 2 , the surface layer material 1 is formed by laminating a surface decorative veneer 5 on a plywood 9. The plywood 9 has a plurality of kerfs 10 formed on the back surface.
[0020]
The soundproof flooring A with a floor heating function is formed by connecting the surface layer material 1 side by side on the cushion material 2, and the adjacent surface layer material 1 is a female fruit provided on the end surfaces of the wood powder resin composite material 4 and the plywood 9. The real part 11 consisting of 11a and the male fruit 11b is actually connected and connected.
[0021]
Further, it is desirable that the surface layer material 1 of the soundproof floor material A with a floor heating function be separable from the cushion material 2. In this case, by making the size of the cushioning material 2 larger than the size of the surface layer material 1, the connection location of the floor heating function part can be reduced, and after the cushioning material 2 is constructed, the surface layer material 1 is adhered or other means You can paste it in. Moreover, by stopping the surface layer material 1 with a releasable means such as an adhesive material, only the surface layer material 1 can be replaced at the time of renovation, and the construction can be saved. The surface material 1 is preferably integrated with the cushion material 2. In this case, the soundproofing flooring A with a floor heating function can be constructed in the same manner as the current direct-bonding soundproofing flooring B. When the cushioning material 2 of the soundproofing flooring material A with the floor heating function and the surface layer material 1 are integrated, the cushioning material 2 of the soundproofing flooring material A with the floor heating function can be laid on the floor slab 7 as shown in FIG. If the surface material 1 is separable, it laid surface layer material 1 after laying the cushion member 2 as shown in FIG.
[0022]
In the case of the example in FIG. 3, the soundproofing flooring A ′ having no floor heating means is laid on the cushioning material 2 around the room, and the soundproofing flooring A with a floor heating function is laid only at a place where floor heating is required. ing.
[0023]
In addition, FIG. 6 is a block diagram of the commercial item of the wood direct soundproofing flooring material B of the present LL-45 level. A plywood 9 'is pasted on the surface side of the cushion material 2', a surface decorative material 5 is pasted on the front side of the plywood 9 ', and a cut groove 10' is provided on the back side of the plywood 9 '. . This soundproof floor material B is laid on the floor slab 7. Adjacent sound-insulating floor materials B are connected by fitting a real part 11 'composed of a female fruit 11a' and a male fruit 11b '.
[0024]
Hereinafter, the present invention will be described in detail by way of examples.
[Example 1]
300 µm thick aluminum foil, 3 mm thick wood powder resin composite, 70 µm thick reinforced paper with improved paper-to-paper strength, 0.25 mm thick surface makeup Single plates are stacked one after another. The fiber board has a thickness of 5.5 mm in the upper layer and a specific gravity of 0.3, and is composed of 30% palm, 20% extra fine hemp, 15% cotton, and 35% olefin binder, and the lower layer has a thickness of 6. Spherical embossment with a height of 1.5 mm, 10 mmφ on the back surface is processed with a pitch of 13 mm, with a specific gravity of 0 mm, a specific gravity of 0.2, and 10% palm, 20% extra fine hemp, 15% extra cotton, extra short It consists of 20% fiber and 35% olefinic binder. A 7.2 mmφ cross-linked polyethylene hot water pipe is incorporated inside the fiber board. The aluminum foil is bonded to the surface of the fiber board. The wood powder resin composite material is a blend of wood powder and polypropylene at a weight ratio of 30:70. On the back, grooves cut in the width direction with a depth of 1 mm and a width of 2 mm are inserted at a pitch of 30 mm in the longitudinal direction. ing. The reinforced paper has a basis weight of 50 g / m 2 and is bonded to the wood powder resin composite material by heat fusion. The face veneer is glued to the reinforced paper. The surface will be the same urethane paint finish as the current flooring. The interface between the wood powder resin composite and the aluminum foil is fixed with an adhesive. As the adhesive, acrylic double-sided tape {Nitto Denko Corporation No. 501K}. The soundproof flooring with floor heating function of Example 1 configured in the structure as shown in FIG. 1 as described above, and the current LL-45 level wood soundproof flooring with the structure as shown in FIG. 6 ( Evaluation with a commercially available product is shown below.
[Example 2]
An aluminum foil having a thickness of 300 μm, a plywood having a thickness of 5 mm, and a veneer having a thickness of 0.25 mm are sequentially laminated on the surface of the fiber board having a thickness of 11.5 mm. The fiber board has a thickness of 5.5 mm in the upper layer and a specific gravity of 0.3, and is composed of 30% palm, 20% extra fine hemp, 15% cotton, and 35% olefin binder, and the lower layer has a thickness of 6. Spherical embossment with a height of 1.5 mm, 10 mmφ on the back surface is processed with a pitch of 13 mm, with a specific gravity of 0 mm, a specific gravity of 0.2, and 10% palm, 20% extra fine hemp, 15% extra cotton, extra short It consists of 20% fiber and 35% olefinic binder. A 7.2 mmφ cross-linked polyethylene hot water pipe is incorporated inside the fiber board. The aluminum foil is bonded to the surface of the fiber board. The plywood is made by laminating two 3-ply plywoods with a thickness of 2.5 mm in the direction perpendicular to each other. The back surface has grooves with a depth of 2 mm, a width of 1 mm and a width cut at a pitch of 12 mm in the longitudinal direction. Yes. The surface decorative veneer is bonded in a direction perpendicular to the fiber direction of the outermost surface of the plywood. The surface will be the same urethane paint finish as the current flooring. The interface between the plywood and the aluminum foil is fixed with an adhesive. As the adhesive, acrylic double-sided tape {Nitto Denko Corporation No. 501K}. The soundproof flooring with floor heating function of Example 2 configured as shown in FIG. 2 as described above, and the current LL-45 level wood soundproof flooring with a structure as shown in FIG. 6 ( Evaluation with a commercially available product is shown below.
[0025]
Table 1 shows the results of tests such as light floor impact sound level, compression test, caster test and the like.
[0026]
[Table 1]
Figure 0003659060
[0027]
As a result, it can be seen that the configuration of the embodiment of the present invention improves the feeling of walking, depression due to casters, etc. while having a floor heating function and the light floor impact sound level is L-45 level. Moreover, it turns out that dimensional stability and crack resistance can be improved by using a wood powder resin composite material for the surface layer material.
[0028]
In Examples 1 and 2 , the evaluation results of the load resistance and the strength of the real part of the surface material are shown in Table 2 below.
[0029]
[Table 2]
Figure 0003659060
[0030]
When the surface layer material is plywood, by stacking two 3-ply plywoods with a thickness of 2.5 mm in the orthogonal direction to make 6 plies, sufficient real strength can be obtained by cutting the fruit into 3-5 ply parts from the top Further, even if a groove with a depth of 2 to 3 mm is cut on the back surface, 3 plies remain from the front surface, so that sufficient strength can be obtained. When the surface layer material is a wood powder resin composite material, sufficient strength can be obtained in the wood powder resin composite material itself, and the surface layer material can be made thinner than using plywood.
[0031]
Table 3 shows the loss coefficient calculated from the resonance characteristics obtained from the static spring constant measured in accordance with JISK-6385, the excitation force in the cantilever and the vibration acceleration for the fiber boards of Examples 1 and 2 .
[0032]
[Table 3]
Figure 0003659060
[0033]
The fiber board has a small spring constant of itself, and a local force acts on the embossed part on the back surface to enhance the vibration isolation effect. At the same time, the fiber board is a low frequency region that determines the soundproof performance in the floor impact sound. Since the loss coefficient in the vicinity of 125 Hz and 250 Hz is large, it is possible to easily obtain the vibration isolation effect by the reduction of the spring constant per unit area of the cushion material itself and the vibration suppression effect by the fiber material.
[0034]
Further, a two-layer fiber board having two types of composition, and a single-layer board in which spherical embossments with a specific gravity of 0.15, a thickness of 9 mm, and a back surface of 1.5 mm and a height of 10 mmφ are processed at a pitch of 13 mm. The results of the peel strength are shown in Table 4.
[0035]
[Table 4]
Figure 0003659060
[0036]
Although the composition of (2) is the fiber board of Examples 1 and 2 , it is possible to improve the entanglement between the fibers compared to (1) by blending the very short fiber that has reduced the amount of palm in the lower layer. While increasing the delamination strength of the cushioning material, the cushioning property can be improved, the spring constant per unit area of the cushioning material itself can be reduced, and the soundproofing performance can be improved.
[0037]
Further, when the fiber board of the single layer structure to the specific gravity 0.15 (3) peel strength as is not sufficient, since the sound insulation performance for the specific gravity to 0.3 is L-55 level, as the specific gravity of the fiber board Is preferably 0.2 to 0.3.
[0038]
Moreover, in apartment houses, flooring materials with a thickness of 15 mm or less are desirable because of the relationship with openings such as doors. However, when the total thickness of the fiber board of Example 1 is 6.0 mm, the soundproofing performance is L-50 level. Therefore, the total thickness of the fiber board is desirably 9 to 15 mm.
[0039]
【The invention's effect】
The invention according to claim 1 of the present invention is a soundproof flooring material having at least a surface layer material and a cushioning material, and the floor heating means is housed in the cushioning material, so that the walking feeling is improved while obtaining the soundproofing performance, and the concrete It can be directly attached to the floor slab of the house, and can make floor heating of an apartment or the like possible. Further, the surface hardness and smoothness can be improved, and the dimensional stability against temperature and humidity can be improved. In addition, by increasing the hardness of the upper layer relative to the lower layer, while satisfying the load resistance as a flooring material, by increasing the cushioning property of the lower layer relative to the upper layer, the spring per unit area of the cushion material itself The constant can be reduced and the soundproofing performance can be improved.
[0040]
Further, the invention according to claim 2 of the present invention is that in claim 1, the floor heating means uses a heat source by hot water or electricity, so that the cushion material is a hot water pipe, a cord heater, a linear heater such as a heat sensitive wire heater, a film By storing a planar heater such as a heater, it is possible to obtain a cushioning material having soundproofing performance and heating function, and by connecting an external hot water source and a power source, it is possible to easily obtain a floor material. A soundproof flooring having a heating function can be obtained.
[0041]
Further, the invention of claim 3 of the present invention is that in claim 1, the surface layer material is composed of at least a wood powder resin composite material and a surface decorative veneer, and the surface layer material has a wood powder resin composite material. High and smooth flat surface is obtained, and wood powder resin composite is a material with high dimensional stability against temperature and humidity compared to plywood, etc. Is reduced.
[0042]
Moreover, since the surface layer material is separable from the cushion material in claim 1, the invention of claim 4 of the present invention can be separated from the cushion material. The number of connection points can be reduced, and after the cushioning material is applied, the surface layer material can be adhered or pasted by other means, and the surface layer material is stopped by a releasable means such as an adhesive material. Thus, only the surface layer material can be replaced at the time of renovation, and the construction can be saved.
[0043]
Moreover, since the surface layer material is integrated with the cushion material in claim 1, the invention according to claim 5 of the present invention is constructed by applying a soundproof floor material with a floor heating function in the same manner as the current directly attached soundproof floor material. Is something that can be done.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a soundproof flooring with a floor heating function according to an example of the present invention.
FIG. 2 is a cross-sectional view showing a soundproof floor material with a floor heating function of another example of the above.
FIG. 3 is a perspective view showing a state in which the above soundproofing flooring with floor heating function is constructed.
FIG. 4 is a perspective view showing a state where a soundproof floor material with a floor heating function in which the surface layer material and the cushion material are integrated is installed.
FIG. 5 is a perspective view showing a state in which a soundproof floor material with a floor heating function in which a surface layer material and a cushion material are separated is laid.
FIG. 6 is a cross-sectional view showing the structure of an existing soundproof flooring.
[Explanation of symbols]
A Soundproofing floor material 1 Surface layer material 2 Cushion material 3 Floor heating means 4 Wood powder resin composite material 5 Surface decorative veneer

Claims (5)

表層材とクッション材とを少なくとも備えた防音床材であって、繊維ボードからなるクッション材は上層と下層からなると共に上層を下層に対して硬度を高くし、硬度の高い上層に温水パイプのような床暖房手段を埋設したことを特徴とする床暖房機能付防音床材。It is a soundproof flooring material that has at least a surface material and a cushioning material, and the cushioning material made of fiberboard is composed of an upper layer and a lower layer, and the upper layer is harder than the lower layer, and the upper layer with high hardness is like a hot water pipe. A soundproof flooring with floor heating function, characterized in that a floor heating means is embedded . 床暖房手段は温水あるいは電気による熱源を利用したことを特徴とする請求項1記載の床暖房機能付防音床材。  The soundproof flooring with floor heating function according to claim 1, wherein the floor heating means uses a heat source by hot water or electricity. 表層材は少なくとも木粉樹脂複合材と表面化粧単板よりなることを特徴とする請求項1記載の床暖房機能付防音床材。  2. The soundproof flooring with floor heating function according to claim 1, wherein the surface layer material comprises at least a wood powder resin composite and a surface decorative veneer. 表層材はクッション材と分離可能となっていることを特徴とする請求項1記載の床暖房機能付防音床材。  The soundproof flooring with floor heating function according to claim 1, wherein the surface layer is separable from the cushioning material. 表層材はクッション材と一体となっていることを特徴とする請求項1記載の床暖房機能付防音床材。 The soundproof flooring with floor heating function according to claim 1, wherein the surface layer is integrated with the cushioning material.
JP11570999A 1999-04-23 1999-04-23 Soundproof flooring with floor heating function Expired - Fee Related JP3659060B2 (en)

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JP2014070329A (en) * 2012-09-27 2014-04-21 Asahi Woodtec Corp Overlaying floor material for reform

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