JPH08326279A - Soundproof floor material having buffer on rear side - Google Patents
Soundproof floor material having buffer on rear sideInfo
- Publication number
- JPH08326279A JPH08326279A JP13664695A JP13664695A JPH08326279A JP H08326279 A JPH08326279 A JP H08326279A JP 13664695 A JP13664695 A JP 13664695A JP 13664695 A JP13664695 A JP 13664695A JP H08326279 A JPH08326279 A JP H08326279A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- soundproof
- veneer
- sound insulation
- 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.)
- Pending
Links
Landscapes
- Floor Finish (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は防音床材に関し、特に、
遮音性能と歩行感の双方を満足させた防音床材に関す
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soundproof floor material, and in particular,
The present invention relates to a soundproof floor material that satisfies both sound insulation performance and walking feeling.
【０００２】[0002]
【従来の技術】コンクリートスラブ上に直接あるいはコ
ンクリートスラブに敷設した捨て張り合板に対して木質
系床材を敷設することはいわゆるフローリング施工とし
て従来から行われている。木質系床材の構造も遮音性あ
るいは歩行感の向上等の観点から多くのものが提案され
かつ使用されている。2. Description of the Related Art Laying a wooden floor material directly on a concrete slab or on a waste plywood laid on the concrete slab has been conventionally performed as so-called flooring construction. Many structures of wooden floor materials have been proposed and used from the viewpoint of sound insulation or improvement of walking feeling.
【０００３】例えば、図３に示すように、木質化粧板３
１と軟質シート３２と木質系基板３３を積層一体化させ
た木質板の裏面に緩衝材としてゴムシート３４を貼着し
て形成した木質床材であって、該木質系基板３３に切溝
３５を設けるようにしたもの（特開昭６３−２４１２６
４号公報参照）、図４に示すように、５プライ合板４０
の中心単板４１（すなわち、表面から３層目の単板）に
底部を位置させた多数の凹溝４２を刻設し、さらに裏面
には緩衝材としてポリエチレンに無機質を混入した発泡
プラスチックフォーム４３を貼着したもの（実開昭６２
−１７３４３９号公報）等が知られている。For example, as shown in FIG. 3, a wooden decorative board 3
1. A wooden flooring material formed by attaching a rubber sheet 34 as a cushioning material to the back surface of a wooden board in which 1 and a soft sheet 32 and a wooden board 33 are laminated and integrated. With the provision of Japanese Patent Laid-Open No. 63-24126
4 reference), as shown in FIG.
The center veneer 41 (that is, the veneer of the third layer from the surface) is provided with a large number of recessed grooves 42 whose bottom is located, and the back side is a foamed plastic foam 43 in which an inorganic substance is mixed with polyethylene as a cushioning material. Affixed with
No. 173439) is known.
【０００４】これらの床材は、切溝や凹溝の存在により
敷設面の凹凸に対して追従することが容易となり、敷設
面に対して裏面側を密着させた状態で敷設することがで
きることから、遮音性が低下することもなくまた歩行感
も一定する。さらに、切溝やこの凹溝は基材を伝播する
振動エネルギーを減衰させる作用もなすことから、遮音
性はさらに向上する利点もある。[0006] These floor materials can easily follow the irregularities of the laying surface due to the presence of the cut grooves and the concave grooves, and can be laid with the back surface in close contact with the laying surface. The sound insulation does not deteriorate and the walking feeling is constant. Further, since the cut groove and this groove also have a function of attenuating the vibration energy propagating through the base material, there is an advantage that the sound insulation is further improved.
【０００５】また、緩衝材を裏面に貼着していることか
ら、遮音性と共に歩行感も改善される。Further, since the cushioning material is attached to the back surface, the walking feeling is improved together with the sound insulation.
【０００６】[0006]
【発明が解決しようとする課題】上記の構成の各防音床
材において、特開昭６３−２４１２６４号公報に示され
るものは、軟質シートを中間に介在させていることから
構造的に複雑となり高い製造コストを必要とする。実開
昭６２−１７３４３９号公報に示されるものは、合板に
凹溝を刻設するものであり構造的に簡素化されているも
のの、本発明者らの実験によれば緩衝材としての発泡ポ
リエチレンシートはある程度の硬さを持ち歩行感を妨げ
ないが、防音、遮音性において不十分であった。木質系
基材の裏面に緩衝材として発泡ポリウレタンシートを貼
着したものも実用化されているが、同じ発泡倍率の発泡
ポリエチレンシートと比較して発泡ポリウレタンシート
は遮音性は良好であるものの柔らかすぎて歩行感に幾分
欠ける欠点がある。Among the soundproof flooring materials having the above construction, the one disclosed in Japanese Patent Laid-Open No. 63-241264 has a complicated structure due to the interposition of the soft sheet and is high. Manufacturing cost is required. The one disclosed in Japanese Utility Model Laid-Open No. 62-173439 has a concave groove formed in a plywood and is structurally simplified, but according to the experiments conducted by the present inventors, expanded polyethylene as a cushioning material. The seat had some hardness and did not interfere with the walking feeling, but was insufficient in soundproofing and sound insulation. Although a foamed polyurethane sheet attached to the back of a wood-based substrate as a cushioning material is also in practical use, the foamed polyurethane sheet has good sound insulation but is too soft compared to a foamed polyethylene sheet with the same expansion ratio. There is a drawback that the walking feeling is somewhat lacking.
【０００７】さらに、前記のような基材の裏面に凹溝を
多数形成した防音床材をコンクリート基盤等の上に敷設
した床面を歩行した際に、歩行の際に不規則な床鳴り音
が生じる場合がある。不規則な床鳴り音は歩行者に不快
感を与えるものであり、極力回避することが必要とされ
る。従って、本発明の目的は、防音床材において、簡単
な構成でもって緩衝性、遮音性と歩行感の双方を満足で
きる防音床材を得ることにある。また、本発明の目的
は、そのような防音床材において、さらに床鳴りの発生
をも回避した防音床材を得ることにある。Furthermore, when a person walks on a floor surface on which a soundproof floor material having a large number of recessed grooves formed on the back surface of the above-mentioned base material is laid on a concrete base or the like, an irregular floor ringing noise is generated during walking. May occur. Irregular floor noises make pedestrians uncomfortable and should be avoided as much as possible. Therefore, an object of the present invention is to provide a soundproof flooring material having a simple structure and satisfying both the cushioning property, the sound insulation property and the feeling of walking. Further, an object of the present invention is to obtain a soundproofing floor material in which the occurrence of floor noise is further avoided in such a soundproofing floor material.
【０００８】[0008]
【課題を解決するための手段】上記の課題を解決すべ
く、本発明者らは、木質系防音床材の裏面緩衝材として
用いられる発泡ポリエチレンシート及び発泡ポリウレタ
ンシートの遮音性及び歩行感について多くの実験を行
い、発泡ポリエチレンシートと発泡ポリウレタンシート
とを積層したものを緩衝材として用いることにより、遮
音性と歩行感の双方を満足する緩衝材が得られることを
知覚し、本発明をなすにいたった。In order to solve the above-mentioned problems, the inventors of the present invention have been concerned with the sound insulation and walking feeling of foamed polyethylene sheets and foamed polyurethane sheets used as back cushioning materials for wooden soundproof floor materials. It is perceived that a cushioning material satisfying both sound insulation and walking feeling can be obtained by using a laminate of a foamed polyethylene sheet and a foamed polyurethane sheet as a cushioning material, and the present invention is made. Only
【０００９】すなわち、本発明は、木質系単位板を多数
枚集合し、その裏面側に緩衝材を貼着した防音床材であ
って、該緩衝材は発泡ポリエチレンシートと発泡ポリウ
レタンシートを積層した構成であることを特徴とする防
音床材を開示する。木質系単位板の素材としては、合
板、パーチクルボード、ＭＤＦ等任意のものを用いるこ
とができるが、通常の合板を用いる場合であっても、後
記する構成の緩衝材を裏面に貼着することにより十分な
遮音性と歩行感を得ることができる。That is, the present invention is a soundproof flooring material in which a large number of wood-based unit boards are assembled, and a cushioning material is adhered to the back side thereof, and the cushioning material is formed by laminating a foamed polyethylene sheet and a foamed polyurethane sheet. Disclosed is a soundproof flooring having a structure. The material of the wood-based unit plate, plywood, particle board, can be used any MDF, etc., even when using a conventional plywood, by pasting a cushioning material structure to be described later on the back surface Sufficient sound insulation and walking feeling can be obtained.
【００１０】積層する緩衝材の厚さは３〜６ｍｍである
ことが遮音性と歩行感の双方の点から望ましい。発泡ポ
リエチレンシートの発泡倍率は１０〜３０倍程度、厚さ
は２〜４ｍｍ程度が好ましい。実験によれば、発泡倍率
が１０倍以下又は厚さが２ｍｍ以下では硬くなりすぎ、
歩行感が悪くなり、遮音性も良くなかった。また、発泡
倍率が３０倍以上又は厚さが４ｍｍ以上では柔らかくな
り遮音性は良くなるが、柔らかすぎて歩行感が悪くなっ
た。さらに、発泡倍率が３０倍以上になると発泡ポリエ
チレン自体の強度が低下して破損し易く、また床材の裏
面に貼着した場合に、長期の荷重に対してへたり易くな
った。The thickness of the cushioning material to be laminated is preferably 3 to 6 mm from the viewpoint of both sound insulation and walking feeling. The expanded polyethylene sheet preferably has an expansion ratio of about 10 to 30 times and a thickness of about 2 to 4 mm. According to the experiment, if the expansion ratio is 10 times or less or the thickness is 2 mm or less, it becomes too hard,
The walking feeling was poor and the sound insulation was poor. Also, when the expansion ratio is 30 times or more or the thickness is 4 mm or more, it becomes soft and the sound insulation is improved, but it is too soft and the walking feeling is deteriorated. Further, when the expansion ratio is 30 times or more, the strength of the foamed polyethylene itself is lowered and is easily damaged, and when the foamed polyethylene is attached to the back surface of the flooring material, it easily becomes tired against a long-term load.
【００１１】発泡ポリウレタンシートの密度は１０〜５
０ｋｇ／ｍ3 、厚さは２〜４ｍｍ程度が好ましい。実験
によれば、密度５０ｋｇ／ｍ3 以上又は厚さが２ｍｍ以
下ではある程度の硬さを持つために歩行感は良くなるが
遮音性能が悪くなった。また密度が１０ｋｇ／ｍ3 以下
又は厚みが４ｍｍ以上では、柔らかくなりすぎるため遮
音性能は良くなるが、歩行感が悪くなった。さらに、密
度１０ｋｇ／ｍ3 以下になると発泡ウレタン自体の強度
が低下して破損しやすく、また床材の裏面に貼着した場
合に、長期の荷重に対してへたり易くなった。The density of the polyurethane foam sheet is 10 to 5
It is preferably 0 kg / m 3 and the thickness is about 2 to 4 mm. According to the experiment, when the density is 50 kg / m 3 or more or the thickness is 2 mm or less, the walking feeling is improved because of having some hardness, but the sound insulation performance is deteriorated. Further, when the density is 10 kg / m 3 or less or the thickness is 4 mm or more, it becomes too soft and the sound insulation performance is improved, but the walking feeling is deteriorated. Further, when the density is 10 kg / m 3 or less, the strength of the urethane foam itself decreases and is easily damaged, and when the urethane foam is attached to the back surface of the flooring material, it easily becomes tired against a long-term load.
【００１２】発泡ポリエチレンは独立発泡であり、一
方、発泡ポリウレタンは連続発泡であるため、発泡倍率
が同等の場合には、発泡ポリエチレンに比べ発泡ポリウ
レタンは遮音性に優れ、柔らかいという性質がある。こ
のため、両シートを積層して厚みが一定の緩衝材を得る
場合に、発泡ポリエチレンシートを薄くし、発泡ポリウ
レタンシートを厚くすると、遮音性能は向上するが柔ら
かくなりすぎるために歩行感が悪化し、逆に、発泡ポリ
エチレンシートを厚くし発泡ポリウレタンシートを薄く
すると、ある程度の硬さが得られるために歩行感が良く
なるが反面遮音性が低下する。本発明者らの実験によれ
ば、同じ発泡倍率のものを用いる場合に、発泡ポリエチ
レンシートと発泡ポリウレタンシートとの厚みの割合は
ほぼ同じ程度が好ましかった。しかし、前記のように発
泡ポリウレタンシートの方が厚くなるほど遮音性は良く
なる傾向にあるので、目標とする遮音性能によって、そ
の割合は変更してもよい。Since foamed polyethylene is independent foaming, while foamed polyurethane is continuous foaming, foamed polyurethane is superior in sound insulation and softer than foamed polyethylene at the same expansion ratio. Therefore, when both sheets are laminated to obtain a cushioning material having a constant thickness, if the foamed polyethylene sheet is thinned and the foamed polyurethane sheet is thickened, the sound insulation performance is improved but it becomes too soft and the walking feeling deteriorates. On the contrary, when the foamed polyethylene sheet is made thicker and the foamed polyurethane sheet is made thinner, a certain degree of hardness is obtained and the walking feeling is improved, but the sound insulation is deteriorated. According to the experiments conducted by the present inventors, it is preferable that the thickness ratios of the foamed polyethylene sheet and the foamed polyurethane sheet are substantially the same when the foaming ratio is the same. However, as described above, the thicker the foamed polyurethane sheet is, the better the sound insulation tends to be. Therefore, the ratio may be changed depending on the target sound insulation performance.
【００１３】積層した緩衝材を木質基材と張り合わせる
方向は、発泡ポリウレタンシート側を木質系単位板側と
して貼着することが好ましい。これは、発泡ポリエチレ
ンは独立発泡であるため床スラブからの湿気を通さず、
また施工用の接着剤も通さないため、施工用接着剤で緩
衝材が硬くなり遮音性能が悪化するのを防止できること
による。As for the direction in which the laminated cushioning material is attached to the wooden base material, it is preferable to stick the foamed polyurethane sheet side with the wooden unit board side. This is because the polyethylene foam is an independent foam and does not pass moisture from the floor slab,
In addition, since the construction adhesive does not pass through, it is possible to prevent the cushioning material from being hardened by the construction adhesive and deteriorating the sound insulation performance.
【００１４】本発明者らは、さらに、裏面に凹溝を形成
した合板を基材として持つ単位板から構成される防音床
材についてその床鳴りの発生原因の分析を行ったとこ
ろ、床鳴りの生じた床材においては、凹溝の底部が位置
する合板の単板部分で木材繊維の多くに折れが発生して
いることを知った。そのときの折れ音が床鳴りの原因の
一つとなっているものと考えた。そして、さらに実験を
継続することにより、その折れが生じるときの音は、凹
溝の底部が木材の繊維の走る方向に直交して延びている
場合は大きく、平行して延びている場合には小さいこと
を確認した。The inventors of the present invention further analyzed the cause of the floor squeal for a soundproof flooring composed of a unit plate having a plywood substrate having a recessed groove as a base material. In the resulting flooring material, it was found that most of the wood fibers were broken at the veneer part of the plywood where the bottom of the groove was located. We thought that the bending sound at that time was one of the causes of the ringing noise. Then, by continuing the experiment further, the sound when the folds occur is large when the bottom of the groove extends perpendicularly to the running direction of the fibers of the wood, and when it extends in parallel. I confirmed that it was small.
【００１５】合板を基材として用いる防音床材におい
て、基材の裏面に形成する凹溝の方向は強度との関係で
表面層をなす単板の繊維方向に対して直交する方向とす
るのが普通である。また、多層合板において各層を構成
する単板はその繊維方向が互いに直交するように交互に
配置されるものであり、前記した実開昭６２−１７３４
３９号公報に示されるように、凹溝４２を５プライ合板
１の中心単板４１（表面から３層目の単板）に底部を位
置させて刻設したものにおいては、該凹溝の底部の方向
は表面層を構成する単板の繊維方向と同じ方向、すなわ
ち、木材の繊維方向に直交した状態のものとなり、その
ことが、床鳴り音を一層大きくしている原因であると考
えられる。In a soundproofing floor material using plywood as a base material, the direction of the groove formed on the back surface of the base material is set to be a direction orthogonal to the fiber direction of the veneer forming the surface layer in relation to the strength. It is normal. In the multilayer plywood, the single plates constituting each layer are alternately arranged so that their fiber directions are orthogonal to each other.
As disclosed in Japanese Unexamined Patent Publication No. 39-39, in the case where the groove 42 is formed by engraving the center veneer 41 of the 5-ply plywood 1 (third layer veneer from the surface) with the bottom positioned, the bottom of the groove is formed. The direction of is in the same direction as the fiber direction of the veneer that constitutes the surface layer, that is, in the state orthogonal to the fiber direction of the wood, which is considered to be the cause of making the floor ringing noise even louder. .
【００１６】本発明は上記の認識に立ち、前記した発泡
ポリエチレンシートと発泡ポリウレタンシートを積層し
た構成である緩衝材を貼着する木質系単位板の好ましい
態様として、裏面側に開口しかつ表面単板の繊維方向に
直交する方向に延びる凹溝を互いに平行に多数本形成し
ている５プライ合板であって、該凹溝は底部が上から第
２番目の単板に達する深さを有しているものを用いた木
質系単位板を用いた防音床材をも開示する。これによ
り、低いコストで得られる防音床材でありながら遮音性
はさらに改善され、床なりも生じさせない防音床材が得
られる。本発明者らの実験によれば、各凹溝のピッチは
ほぼ１０ｍｍ〜２０ｍｍであることは好ましい態様であ
った。On the basis of the above recognition, the present invention is a preferred embodiment of a wood-based unit board to which a cushioning material having a structure in which the above-mentioned foamed polyethylene sheet and foamed polyurethane sheet are laminated is attached, and the wood-based unit board has an opening on the back side and a single surface A five-ply plywood having a large number of recessed grooves extending in a direction orthogonal to the fiber direction of the plate in parallel to each other, the recessed grooves having a depth such that the bottom reaches the second veneer from the top. Also disclosed is a soundproof flooring material using a wood-based unit board using the same. As a result, it is possible to obtain a soundproof flooring material which is a soundproofing flooring material which can be obtained at a low cost, but whose sound insulation is further improved and which does not cause flooring. According to the experiments conducted by the present inventors, it was a preferable mode that the pitch of each groove is approximately 10 mm to 20 mm.
【００１７】なお、本発明において、前記木質系単位板
は５プライ合板は合板そのものであってもよく、表面層
に従来知られた突き板をさらに貼着したものであっても
よい。また、凹溝のピッチをほぼ１０ｍｍ〜２０ｍｍと
したのは、それよりも狭いピッチの場合には、単位板と
しての構造的強度が不足して単位板あるいは床材として
の強度保持が困難になることにより、また、それよりも
広いピッチの場合には、敷設面への基材の追従性が低下
して遮音性及び追従性において不十分となると共に、底
部分が大きく屈曲した凹溝が存在することとなり、該凹
溝の底面の陰影が表面側から認識されるようになって意
匠性の低下を引き起こすことによる。In the present invention, the wood-based unit board may be a 5-ply plywood itself, or may be a surface layer to which a conventionally known veneer is further attached. Further, the pitch of the recessed grooves is set to about 10 mm to 20 mm. When the pitch is narrower than that, the structural strength as the unit plate is insufficient and it becomes difficult to maintain the strength as the unit plate or floor material. Therefore, in the case of a pitch wider than that, the ability of the base material to follow the laying surface deteriorates and the sound insulation and the following performance become insufficient, and there is a concave groove whose bottom part is largely bent. This is because the shadow of the bottom surface of the groove is recognized from the front surface side, which causes deterioration in designability.
【００１８】[0018]
【実施例】以下、本発明による木質系単位板及び該単位
板を集合した防音床材を図面に示した実施例を参照して
詳細に説明する。図１は本発明により成形される防音床
材ａの一実施例を示す上面図であり、４周の側面部分に
実加工を施した長方形状の小幅な単位板１・・が多数枚
長手方向を相互に突き合わせて構成される。裏面には後
記する発泡ポリエチレンシート１１と発泡ポリウレタン
シート１２を積層した緩衝材１０が積層されている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A wood-based unit board and a soundproof floor material in which the unit boards are assembled according to the present invention will be described below in detail with reference to the embodiments shown in the drawings. FIG. 1 is a top view showing an embodiment of the soundproof flooring material a formed by the present invention. A large number of rectangular narrow unit plates 1, ... It is configured by matching each other. A cushioning material 10 formed by laminating a foamed polyethylene sheet 11 and a foamed polyurethane sheet 12 described later is laminated on the back surface.
【００１９】図２は前記防音床材の一部を示す拡大断面
図である。この実施例において、用いた単位板は７５ｍ
ｍ×９００ｍｍ、厚さ９ｍｍの５プライ合板であり、木
材の繊維方向が互いに直交するように５枚の単板１ａ〜
１ｅが交互に向きを変えて積層されている。そして、合
板の表面層を構成する単板１ａの繊維方向に直交する方
向に多数本の凹溝３・・が裏面側に形成されている。こ
の例において、凹溝３の幅は２ｍｍであり、１５ｍｍピ
ッチでほぼ等間隔にかつ互いに平行に形成される。そし
て、その底面５は上から第２番目の単板１ｂの厚み内に
位置している。なお、１ａ’は１層目の単板１ａの表面
に貼着された厚さ０．３ｍｍ〜０．６ｍｍ程度の突き板
である。 〔実施例１〕上記の単位板の４周に雄ザネと雌ザネを形
成し、それを４本縦方向にそれぞれ７０ｍｍ、１００ｍ
ｍ、３０ｍｍずらして、図１に示すように平面形状が階
段状になるように仕組んで、床材基材を構成した。この
基材に、発泡倍率１５倍、厚み２ｍｍの発泡ポリエチレ
ンシート１１と、密度４０ｋｇ／ｍ3 、厚み２ｍｍの発
泡ポリウレタンシート１２とを貼り合わせた裏面緩衝材
１０を、発泡ポリウレタンシート１２側を床材基材と接
するように貼り合わせた。 〔実施例２〕実施例１と他の仕様は同等で、裏面緩衝材
１０として、発泡倍率２５倍、厚み２ｍｍの発泡ポリエ
チレンシート１１と、密度１０ｋｇ／ｍ3 、厚み２ｍｍ
の発泡ポリウレタンシート１２とを貼り合わせた裏面緩
衝材１０を、発泡ポリウレタンシート１２側を床材基材
と接するように貼り合わせた。 〔実施例３〕実施例１と他の仕様は同等で、裏面緩衝材
１０として、発泡倍率２５倍、厚み３ｍｍの発泡ポリエ
チレンシート１１と、密度１０ｋｇ／ｍ3 、厚み３ｍｍ
の発泡ポリウレタンシート１２とを貼り合わせた裏面緩
衝材１０を、発泡ポリウレタンシート１２側を基材と接
するように貼り合わせた。 〔比較例１〕実施例１と他の仕様は同等で、裏面緩衝材
として、発泡倍率１５倍、厚み４ｍｍの発泡ポリエチレ
ンシートを貼り合わせた。 〔比較例２〕実施例１と他の仕様は同等で、裏面緩衝材
として、密度１０ｋｇ／ｍ3 、厚み４ｍｍの発泡ポリウ
レタンシートを貼り合わせた。FIG. 2 is an enlarged sectional view showing a part of the soundproof floor material. In this example, the unit plate used is 75 m
It is a five-ply plywood of m × 900 mm and a thickness of 9 mm, and five veneers 1a to 1a so that the fiber directions of wood are orthogonal to each other
1e is laminated by alternately changing the direction. A large number of concave grooves 3 ... Are formed on the back surface side in a direction orthogonal to the fiber direction of the veneer 1a that constitutes the surface layer of the plywood. In this example, the grooves 3 have a width of 2 mm and are formed at a pitch of 15 mm at substantially equal intervals and parallel to each other. The bottom surface 5 is located within the thickness of the second single plate 1b from the top. In addition, 1a 'is a veneer having a thickness of about 0.3 mm to 0.6 mm attached to the surface of the first layer veneer 1a. [Embodiment 1] A male strip and a female strip are formed on four circumferences of the above unit plate, and four of them are arranged in a longitudinal direction of 70 mm and 100 m, respectively.
The flooring base material was constructed by shifting m and 30 mm and arranging so that the planar shape was stepwise as shown in FIG. A back cushioning material 10 obtained by laminating a foamed polyethylene sheet 11 having a foaming ratio of 15 times and a thickness of 2 mm and a foamed polyurethane sheet 12 having a density of 40 kg / m 3 and a thickness of 2 mm to this base material, the foamed polyurethane sheet 12 side is the floor. It was attached so as to be in contact with the material base material. [Example 2] Other specifications are the same as those of Example 1, and the back cushioning material 10 includes a foamed polyethylene sheet 11 having a foaming ratio of 25 times and a thickness of 2 mm, a density of 10 kg / m 3 , and a thickness of 2 mm.
The back surface cushioning material 10 bonded to the foamed polyurethane sheet 12 was bonded so that the foamed polyurethane sheet 12 side was in contact with the floor material base material. [Embodiment 3] Other specifications are the same as those of Embodiment 1. As the back cushioning material 10, a foamed polyethylene sheet 11 having a foaming ratio of 25 times and a thickness of 3 mm, a density of 10 kg / m 3 , and a thickness of 3 mm.
The back surface cushioning material 10 bonded to the foamed polyurethane sheet 12 of was bonded so that the foamed polyurethane sheet 12 side was in contact with the base material. [Comparative Example 1] Other specifications were the same as those of Example 1, and a foamed polyethylene sheet having a foaming ratio of 15 times and a thickness of 4 mm was attached as a back cushioning material. [Comparative Example 2] Other specifications were the same as those of Example 1, and a foamed polyurethane sheet having a density of 10 kg / m 3 and a thickness of 4 mm was bonded as a back cushioning material.
【００２０】前記実施例１〜３及び比較例１、２の防音
床材について、１５０ｍｍ厚のコンクリートスラブに両
面テープで施工し、コンクリート床スラブ素面からのレ
ベル改善量（コンクリート床スラブ素面を直接たたいた
時の床衝撃レベルから、防音床材を施工してたたいた時
の床衝撃レベルを引いた値〔ｄＢ〕）を各周波数毎に算
出した。その結果を表１に示す。 〔実施例４〜６〕凹溝３・・を形成しない単位板を用い
て床材基材を構成した以外は、実施例１〜３と同じ仕様
の防音床材を製造した。 〔比較例３、４〕凹溝３・・を形成しない単位板を用い
て床材基材を構成した以外は、比較例１、２と同じ仕様
の防音床材を製造した。The soundproof flooring materials of Examples 1 to 3 and Comparative Examples 1 and 2 were applied to a 150 mm-thick concrete slab with double-sided tape, and the level improvement amount from the concrete floor slab raw surface (concrete floor slab raw surface was directly A value [dB] obtained by subtracting the floor impact level when the soundproof floor material was struck from the floor impact level when struck was calculated for each frequency. Table 1 shows the results. [Examples 4 to 6] Sound-proof flooring materials having the same specifications as those in Examples 1 to 3 were manufactured except that the flooring material base material was formed by using the unit plates in which the concave grooves 3 ... [Comparative Examples 3 and 4] Sound-proof flooring materials having the same specifications as those of Comparative Examples 1 and 2 were manufactured except that the flooring material base material was formed by using the unit plates in which the concave grooves 3 ...
【００２１】前記実施例４〜６及び比較例３、４の防音
床材について、１５０ｍｍ厚のコンクリートスラブに両
面テープで施工し、コンクリート床スラブ素面からのレ
ベル改善量を同様にして算出した。その結果を表２に示
す。The soundproof flooring materials of Examples 4 to 6 and Comparative Examples 3 and 4 were applied to a 150 mm thick concrete slab with double-sided tape, and the level improvement amount from the bare surface of the concrete floor slab was calculated in the same manner. The results are shown in Table 2.
【００２２】[0022]
【表１】 [Table 1]
【００２３】[0023]
【表２】 [Table 2]
【００２４】表１、２から判るように、裏面緩衝材が同
じ厚さのものであっても、実施例１〜６のものと比較し
て、比較例１、３（発泡ポリエチレンシート）の場合は
明らかに遮音性能が低下している。また、それぞれにつ
いて歩行感を調べたところ、実施例１〜６及び比較例
１、３のものは適度の硬さを有し歩行感は良かったが、
比較例２、４（発泡ポリウレタンシート）の場合は遮音
性能の低下はみられるものの柔らかすぎて沈み込みが大
きく歩行感は悪かった。As can be seen from Tables 1 and 2, in the case of Comparative Examples 1 and 3 (foamed polyethylene sheet), compared with those of Examples 1 to 6 even if the back cushioning material has the same thickness. Clearly has reduced sound insulation performance. In addition, when the walking feeling was examined for each of them, those of Examples 1 to 6 and Comparative Examples 1 and 3 had moderate hardness and had a good walking feeling,
In the case of Comparative Examples 2 and 4 (foamed polyurethane sheet), although the sound insulation performance was deteriorated, it was too soft and the depression was large and the walking feeling was poor.
【００２５】さらに、表１と２の比較から判るように、
床材基材として凹溝３・・を形成した単位板によって構
成したものを用いることにより、遮音性はさらに改善さ
れている。 〔実施例７〕実施例１〜６の防音床材をコンクリートス
ラブを構成するコンクリート表面上に直接接着剤を用い
て張り付け施工し、その上を歩いて床鳴りの程度を観察
したところ、床鳴り音は殆どなかった。Further, as can be seen from the comparison between Tables 1 and 2,
The sound insulation is further improved by using, as the flooring base material, a unit board formed with the concave grooves 3 ... [Example 7] The soundproof flooring materials of Examples 1 to 6 were applied to the concrete surface constituting the concrete slab by directly using an adhesive, and walking on the surface, the degree of floor squeaking was observed. There was almost no sound.
【００２６】[0026]
【発明の効果】本発明による緩衝材を裏面に貼着した木
質系床材は緩衝性、遮音性に優れかつ良好な歩行感が得
られる。特に、木質系基材として５プライ合板の上から
第２番目の単板に達する深さを有する凹溝を刻設した木
質系単位板を集合したものを用いることにより、さらに
床鳴りの発現もない直張りフローリング床を得ることが
できる。EFFECTS OF THE INVENTION The wooden flooring material having the cushioning material according to the present invention attached to the back surface is excellent in cushioning and sound insulating properties and provides a good walking feeling. In particular, by using a group of wood-based unit boards in which a concave groove having a depth reaching the second veneer from the top of a 5-ply plywood is enumerated as the wood-based base material, the occurrence of floor squeal can be further enhanced. You can get no upholstered flooring floors.
【図１】単位板を多数枚組付けた防音床材を示す上面
図。FIG. 1 is a top view showing a soundproof floor member in which a large number of unit plates are assembled.
【図２】防音床材の一部の拡大断面図。FIG. 2 is an enlarged cross-sectional view of a part of the soundproof floor material.
【図３】従来の防音床の一例を示す断面図。FIG. 3 is a sectional view showing an example of a conventional soundproof floor.
【図４】従来の防音床の他の例を示す断面図。FIG. 4 is a cross-sectional view showing another example of a conventional soundproof floor.
ａ…防音床材、１…木質系単位板、１ａ〜１ｅ…５プラ
イ合板を構成する各単板、３…凹溝、５…凹溝の底部。
１０…緩衝材、１１…発泡ポリエチレンシート、１２…
発泡ポリウレタンシートa ... Soundproof flooring material, 1 ... Wood-based unit plate, 1a to 1e ... Each veneer constituting 5 ply plywood, 3 ... Recessed groove, 5 ... Bottom of recessed groove.
10 ... Buffer material, 11 ... Foamed polyethylene sheet, 12 ...
Foamed polyurethane sheet
Claims (5)
側に緩衝材を貼着した防音床材であって、該緩衝材は発
泡ポリエチレンシートと発泡ポリウレタンシートを積層
した構成であることを特徴とする防音床材。1. A soundproofing floor material comprising a large number of wooden unit boards assembled together and a cushioning material attached to the back side thereof, wherein the cushioning material comprises a laminated polyethylene foam sheet and a polyurethane foam sheet. Sound-proof flooring characterized by.
質系単位板側として貼着されていることを特徴とする請
求項１記載の防音床材。2. The soundproof flooring material according to claim 1, wherein the cushioning material is attached such that the foamed polyurethane sheet side is the wood-based unit board side.
１０〜３０倍、厚さ約２〜４ｍｍであり、発泡ポリウレ
タンシートは密度約１０〜５０ｋｇ／ｍ3 、厚さ約２〜
４ｍｍである、請求溝１又は２記載の防音床材。3. The expanded polyethylene sheet has an expansion ratio of about 10 to 30 times and a thickness of about 2 to 4 mm, and the expanded polyurethane sheet has a density of about 10 to 50 kg / m 3 and a thickness of about 2 to 4.
The soundproof flooring material according to claim 1 or 2, which has a length of 4 mm.
つ表面単板の繊維方向に直交する方向に延びる凹溝を互
いに平行に多数本形成している５プライ合板であり、該
凹溝は底部が上から第２番目の単板に達する深さを有し
ていることを特徴とする請求項１ないし３いずれか記載
の防音床材。4. The wood-based unit board is a 5-ply plywood board having a large number of concave grooves that are open on the back surface side and extend in a direction orthogonal to the fiber direction of the front surface veneer plate. The soundproof flooring material according to any one of claims 1 to 3, wherein the groove has a depth such that the bottom reaches the second veneer from the top.
されていることを特徴とする請求項４記載の防音床材。5. The soundproof flooring material according to claim 4, wherein the wood-based unit board is subjected to actual processing on four circumferences.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13664695A JPH08326279A (en) | 1995-06-02 | 1995-06-02 | Soundproof floor material having buffer on rear side |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13664695A JPH08326279A (en) | 1995-06-02 | 1995-06-02 | Soundproof floor material having buffer on rear side |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08326279A true JPH08326279A (en) | 1996-12-10 |
Family
ID=15180193
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13664695A Pending JPH08326279A (en) | 1995-06-02 | 1995-06-02 | Soundproof floor material having buffer on rear side |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08326279A (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11247403A (en) * | 1998-02-26 | 1999-09-14 | Konishi Co Ltd | Direct-sticking method for flooring material |
| JP2001104144A (en) * | 1999-10-12 | 2001-04-17 | Achilles Corp | Soundproof carpet |
| KR20040018024A (en) * | 2002-08-24 | 2004-03-02 | 이광은 | Structure of Assembling floor panel for interior and its constructing method |
| JP2005009290A (en) * | 2003-05-26 | 2005-01-13 | Asahi Woodtec Corp | Flooring material and its manufacturing method |
| JP2006517269A (en) * | 2003-01-30 | 2006-07-20 | タック ファスト システムズ ソシエテ アノニム | Improved anchor sheet |
| JP2007198084A (en) * | 2006-01-30 | 2007-08-09 | Eidai Co Ltd | Soundproof floor material |
| JP2014234662A (en) * | 2013-06-04 | 2014-12-15 | 朝日ウッドテック株式会社 | Woody floor material and floor structure |
| JP2015017372A (en) * | 2013-07-09 | 2015-01-29 | 朝日ウッドテック株式会社 | Floor material |
| US10024056B2 (en) | 2011-04-15 | 2018-07-17 | Tac-Fast Georgia L.L.C. | Methods and systems for engagement of decorative covering |
-
1995
- 1995-06-02 JP JP13664695A patent/JPH08326279A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11247403A (en) * | 1998-02-26 | 1999-09-14 | Konishi Co Ltd | Direct-sticking method for flooring material |
| JP2001104144A (en) * | 1999-10-12 | 2001-04-17 | Achilles Corp | Soundproof carpet |
| KR20040018024A (en) * | 2002-08-24 | 2004-03-02 | 이광은 | Structure of Assembling floor panel for interior and its constructing method |
| JP2006517269A (en) * | 2003-01-30 | 2006-07-20 | タック ファスト システムズ ソシエテ アノニム | Improved anchor sheet |
| JP2005009290A (en) * | 2003-05-26 | 2005-01-13 | Asahi Woodtec Corp | Flooring material and its manufacturing method |
| JP2007198084A (en) * | 2006-01-30 | 2007-08-09 | Eidai Co Ltd | Soundproof floor material |
| US10024056B2 (en) | 2011-04-15 | 2018-07-17 | Tac-Fast Georgia L.L.C. | Methods and systems for engagement of decorative covering |
| JP2014234662A (en) * | 2013-06-04 | 2014-12-15 | 朝日ウッドテック株式会社 | Woody floor material and floor structure |
| JP2015017372A (en) * | 2013-07-09 | 2015-01-29 | 朝日ウッドテック株式会社 | Floor material |
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