JP3212782B2 - Sound insulation material and laminated sheet - Google Patents
Sound insulation material and laminated sheetInfo
- Publication number
- JP3212782B2 JP3212782B2 JP31980893A JP31980893A JP3212782B2 JP 3212782 B2 JP3212782 B2 JP 3212782B2 JP 31980893 A JP31980893 A JP 31980893A JP 31980893 A JP31980893 A JP 31980893A JP 3212782 B2 JP3212782 B2 JP 3212782B2
- Authority
- JP
- Japan
- Prior art keywords
- nonwoven fabric
- sound insulating
- insulating material
- gap
- laminated sheet
- 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 - Fee Related
Links
Landscapes
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Laminated Bodies (AREA)
Description
【０００１】[0001]
【産業上の利用分野】この発明は、床板等の下面に貼設
する遮音材、及び地下水排水用として使用する積層シー
トに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sound insulating material attached to a lower surface of a floor plate or the like, and a laminated sheet used for draining groundwater.
【０００２】[0002]
【従来の技術】従来、床板等の床材の下面に貼設するこ
とにより、床から階下へ伝わる騒音を遮断する床材用の
遮音材は、図５にて示すように、厚み２ミリ程度の発泡
ポリエチレン１０１の下面に不織布１０２を貼り付けて
構成されている。上記遮音材は床板の下面に貼着するこ
とにより使用され、床材の振動により発生する騒音を発
泡ポリエチレンと不織布の吸音機能を利用して吸収し、
床板の下側に伝達される騒音を低減している。2. Description of the Related Art Conventionally, a sound insulation material for a floor material, which is attached to a lower surface of a floor material such as a floor board to block noise transmitted from a floor to a lower floor, has a thickness of about 2 mm as shown in FIG. A nonwoven fabric 102 is attached to the lower surface of the expanded polyethylene 101. The sound insulating material is used by being attached to the lower surface of the floorboard, and absorbs noise generated by vibration of the floor material by using a sound absorbing function of foamed polyethylene and nonwoven fabric,
The noise transmitted to the underside of the floorboard has been reduced.
【０００３】[0003]
【発明が解決しようとする課題】上記した遮音材は分厚
い遮音層を構成するものと異なり、発泡ポリエチレンシ
ートと不織布とを数枚重ね合わせることにより構成され
る比較的薄いシートであるため、騒音の遮断効果も相応
のものであった。本発明の目的は、上記した如き比較的
薄いタイプの床材用遮音材において、騒音の遮断効果の
高い構造を提供することにあり、また、上記遮音材と同
構造にて地下水の排水用として能率的に的に使用できる
積層シートを提供することにある。The above-mentioned sound insulating material is a comparatively thin sheet formed by laminating several foamed polyethylene sheets and a nonwoven fabric, unlike the sound insulating material constituting a thick sound insulating layer. The blocking effect was also commensurate. An object of the present invention is to provide a sound insulation material for a floor material of a relatively thin type as described above, which provides a structure having a high noise blocking effect, and has the same structure as the sound insulation material for draining groundwater. An object of the present invention is to provide a laminated sheet that can be used efficiently.
【０００４】[0004]
【課題を解決するための手段】上記した目的を解決する
為に本発明の遮音材及び積層シートは、上不織布と下不
織布とを重ね合わせ、その合い面同士を直接的に対向さ
せ、これら合い面の間に軟質樹脂材を疎らに介在させ上
下両不織布の間に間隙を形成してなるものである。ま
た、上記したした下不織布は上不織布よりも厚くすると
より効果的である。さらに、上不織布と下不織布とを重
ね合わせ、その合い面に軟質樹脂材を疎らに介在させ上
下両不織布の間に間隙を形成することにより積層シート
として構成してもよい。In order to solve the above-mentioned object, a sound insulating material and a laminated sheet according to the present invention are obtained by laminating an upper nonwoven fabric and a lower nonwoven fabric and directly contacting their mating surfaces. A soft resin material is sparsely interposed between the surfaces to form a gap between the upper and lower nonwoven fabrics. It is more effective that the lower nonwoven fabric described above is thicker than the upper nonwoven fabric. Furthermore, the upper nonwoven fabric and the lower nonwoven fabric may be overlapped, a soft resin material may be sparsely interposed between the nonwoven fabrics, and a gap may be formed between the upper and lower nonwoven fabrics to form a laminated sheet.
【０００５】[0005]
【作用】以上の手段によれば、上不織布と下不織布との
間には軟質樹脂材が疎らに介在され、上下両不織布の間
における発泡ゴム以外の部分に間隙が形成される。上記
した遮音材を床材の下面に貼設した場合、遮音材により
床材の振動を低減することができると共に、床材の振動
により生じる騒音が上下両不織布の間を通過する間に吸
収されることになる。また、床材から発生する騒音は上
不織布を通過し、間隙を介して下不織布へ伝播される間
において効果的に減衰される。また、比較的厚みのある
下不織布を間隙の伝達下流側に設けることにより不織布
による騒音の吸収作用を向上することがでる。According to the above means, a soft resin material is sparsely interposed between the upper nonwoven fabric and the lower nonwoven fabric, and a gap is formed between the upper and lower nonwoven fabrics except for the foamed rubber. When the above-mentioned sound insulating material is attached to the lower surface of the floor material, the vibration of the floor material can be reduced by the sound insulating material, and the noise generated by the vibration of the floor material is absorbed while passing between the upper and lower nonwoven fabrics. Will be. Also, noise generated from the flooring material is effectively attenuated while passing through the upper nonwoven fabric and propagating to the lower nonwoven fabric through the gap. Further, by providing a relatively thick lower nonwoven fabric on the downstream side of the gap, the noise absorbing effect of the nonwoven fabric can be improved.
【０００６】また、上記遮音材と同構造の積層シートに
おいては、遮音材の表裏両面に滴下する水が上下両不織
布に浸透し、両不織布の間に形成される間隙を介して流
下して排水される。In the laminated sheet having the same structure as the above-mentioned sound insulating material, water dropped on both the front and back surfaces of the sound insulating material penetrates into the upper and lower nonwoven fabrics, flows down through a gap formed between the two nonwoven fabrics, and drains. Is done.
【０００７】[0007]
【発明の効果】本発明は以上説明したように、騒音吸収
効果がある上下不織布の合い面同士の間に軟質樹脂材を
介在させることにより間隙を形成したものであるから、
遮音材により床材の振動を低減することができると共
に、床材が振動することにより発生する騒音を上下両不
織布により吸収すると同時に、間隙により騒音の伝播を
効果的に減衰させることができ、比較的薄手の遮音材に
おける騒音遮断効果を向上することができる。また、下
不織布を上不織布よりも厚くしたものにおいては、上記
間隙により減衰した騒音をその伝達下流側に設けた厚い
下不織布により効果的に吸収することができるので、よ
り高い騒音遮断効果を得ることができる。As described above, in the present invention, a gap is formed by interposing a soft resin material between mating surfaces of upper and lower nonwoven fabrics having a noise absorbing effect.
The sound insulation material can reduce the vibration of the floor material, and the noise generated by the vibration of the floor material can be absorbed by the upper and lower nonwoven fabrics, and the noise can be effectively attenuated by the gap. It is possible to improve the noise blocking effect of a very thin sound insulating material. Further, in the case where the lower nonwoven fabric is made thicker than the upper nonwoven fabric, the noise attenuated by the gap can be effectively absorbed by the thick lower nonwoven fabric provided on the downstream side of the transmission, so that a higher noise shielding effect is obtained. be able to.
【０００８】上記遮音材と同構造にて構成した積層シー
トにおいては、シート上に滴下する地下水を上下両不織
布に浸透させると共に、両不織布の間に形成される間隙
内に沿って速やかに流下させ、シートの最下部から排水
させることができる。従って、例えばトンネル掘削作業
において上記積層シートを掘削穴の内周面に沿って配設
することにより掘削穴周面から滴下する地下水をシート
内に吸収し、シート内の間隙に沿って流下させながら掘
削穴の両側部から速やかに排水することができる。In the laminated sheet having the same structure as that of the above-mentioned sound insulating material, the groundwater dropped on the sheet is allowed to penetrate into the upper and lower nonwoven fabrics and to flow down quickly along the gap formed between the two nonwoven fabrics. , Can be drained from the bottom of the sheet. Therefore, for example, in the tunnel excavation work, by arranging the laminated sheet along the inner peripheral surface of the excavation hole, the groundwater dripping from the excavation hole peripheral surface is absorbed in the sheet, while flowing down along the gap in the sheet. The drainage can be quickly drained from both sides of the excavation hole.
【０００９】[0009]
【実施例】以下、本発明の一実施を図面に基づいて説明
する。図１及び図２にて示す遮音材ａ１は、床板の下面
に貼設して使用するものであり、上不織布１と下不織布
２との合面に発泡ゴムからなる軟質樹脂材３を多数本線
状に付着させ、該軟質樹脂材３を介して上下両不織布
１，２を接着することにより構成してある。上不織布１
と下不織布２は、床板が振動することにより発生する騒
音波を吸収するものであり、フェルト等の不織布からな
る。上記実施例の場合、上不織布１に７０ｇ／ｍ2 のも
のを、また下不織布２に１４０ｇ／ｍ2 のものを使用
し、下不織布２の厚さを上不織布１の略倍の厚さにして
ある。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. The sound insulating material a1 shown in FIGS. 1 and 2 is used by being attached to the lower surface of a floorboard, and a plurality of soft resin materials 3 made of foamed rubber are formed on the mating surface of the upper nonwoven fabric 1 and the lower nonwoven fabric 2. The upper and lower nonwoven fabrics 1 and 2 are adhered via the soft resin material 3. Upper non-woven fabric 1
The lower nonwoven fabric 2 absorbs noise waves generated by the vibration of the floorboard, and is made of a nonwoven fabric such as felt. In the case of the above embodiment, 70 g / m 2 of the upper non-woven fabric 1 and 140 g / m 2 of the lower non-woven fabric 2 were used, and the thickness of the lower non-woven fabric 2 was set to be approximately twice the thickness of the upper non-woven fabric 1. It is.
【００１０】上下両不織布１，２の合い面には発泡ゴム
からなる軟質樹脂材３を定間隔をおいて多数本線状に付
着させ、該軟質樹脂材３の付着力により上下両不織布
１，２を一体に付着させてある。上記軟質樹脂材３は
１．５ミリから３ミリ程度の厚みを持たせ、これにより
上下両不織布１，２の間における軟質樹脂材３以外の部
分に間隙４を形成してある。間隙４は、床板が振動する
ことにより発生する騒音波を減衰させる為の空間であ
る。尚、上記した軟質樹脂材３とは、ゴム、発泡ゴムの
他にＴＰＥ（熱可塑性エラストマー）や軟質ＰＶＣ、Ｅ
ＶＡ等を含み、これらを上記軟質樹脂材３に換えて使用
してもよい。On the mating surfaces of the upper and lower nonwoven fabrics 1 and 2, a large number of soft resin materials 3 made of foamed rubber are adhered in a regular line at regular intervals. Are attached together. The soft resin material 3 has a thickness of about 1.5 mm to 3 mm, so that a gap 4 is formed between the upper and lower nonwoven fabrics 1 and 2 except for the soft resin material 3. The gap 4 is a space for attenuating a noise wave generated when the floor plate vibrates. In addition, the above-mentioned soft resin material 3 includes TPE (thermoplastic elastomer), soft PVC, E in addition to rubber and foamed rubber.
VA and the like may be used instead of the soft resin material 3.
【００１１】即ち、上記軟質樹脂材３は上下両不織布
１，２を一体的に付着させると共に、両不織布１，２間
に間隙４を形成するためのものである。よって、軟質樹
脂材３の付着パターンも上記した直線平行線模様に限定
されるものではなく、例えば図３にて示す遮音材ａ２の
ように格子状に付着させても、または図４にて示す遮音
材ａ３のように縦横に定間隔をおいて点状や波型線状に
付着させてもよい。That is, the soft resin material 3 serves to integrally adhere the upper and lower nonwoven fabrics 1 and 2 and to form a gap 4 between the nonwoven fabrics 1 and 2. Therefore, the attachment pattern of the soft resin material 3 is not limited to the above-described straight-parallel line pattern. For example, the attachment pattern may be a lattice like the sound insulating material a2 shown in FIG. 3 or shown in FIG. As in the case of the sound insulating material a3, the sound insulating material may be attached at regular intervals in the vertical and horizontal directions in a dotted or wavy line shape.
【００１２】上記したように構成した遮音材ａ１は、床
面を構成する床板等の下面に対して全面的に貼着するこ
とにより使用する。床板上を人が歩く時や、物を引きず
った時等に生じる騒音は床板から階下に伝達されるが、
上記遮音材ａ１をを床板の下面に貼設した場合、床板の
振動により生じる騒音が上下両不織布１，２の間を通過
する間に吸収されると共に、上下両不織布１，２間の間
隙４の存在により騒音の伝達が妨げられて減衰する。ま
た、上記遮音材ａ１は厚みのある下不織布２を間隙４の
伝達下流側に設けてあるので、不織布による騒音の吸収
効率を向上させることができる。The sound insulating material a1 constructed as described above is used by being completely adhered to a lower surface of a floor plate or the like constituting a floor surface. Noise generated when a person walks on the floorboard or drags an object is transmitted from the floorboard downstairs.
When the sound insulating material a1 is attached to the lower surface of the floorboard, noise generated by vibration of the floorboard is absorbed while passing between the upper and lower nonwoven fabrics 1 and 2, and the gap 4 between the upper and lower nonwoven fabrics 1 and 2 is removed. The transmission of noise is hindered and attenuated due to the presence of the noise. Further, since the sound insulating material a1 has the thick lower nonwoven fabric 2 provided on the downstream side of the transmission of the gap 4, the noise absorption efficiency of the nonwoven fabric can be improved.
【００１３】[0013]
【表１】 [Table 1]
【００１４】表１は、本願の遮音材ａ１と従来の遮音
材、及び上下両不織布の間に全面的に発泡ゴムを介在さ
せたものと、本願の幾つかの実施例とを比較した試験結
果である。尚、上記した騒音試験は、各遮音材を貼設し
た床板の下側空間に騒音計を設置し、上記床板上の一定
高さから球体を落下させ、その時床板下側に伝わる騒音
を騒音計で測定する方法で行なっている。上記した試験
の結果によれば、図２にて示した本願の遮音材ａ１を使
用することにより床板下側に伝達される騒音を、従来の
遮音材１０６dbから１０２dbに減少させることができ
た。Table 1 shows test results comparing the sound insulating material a1 of the present application, the conventional sound insulating material, and a case where foam rubber is entirely interposed between the upper and lower nonwoven fabrics and some examples of the present invention. It is. In the noise test described above, a noise meter was installed in the space below the floorboard on which each sound insulation material was stuck, a sphere was dropped from a certain height on the floorboard, and the noise transmitted to the lower side of the floorboard at that time was measured by the noisemeter. It is performed by the method of measuring in. According to the results of the above-described test, the noise transmitted to the lower side of the floorboard can be reduced from the conventional sound insulating material 106db to 102db by using the sound insulating material a1 of the present application shown in FIG.
【００１５】発泡ゴム材を上下両遮音材の合い面に対し
て全面的に付着させたもの（遮音空間のないもの）にお
いての測定値は１０５dbにとどまり、本願の遮音材ａ１
の測定結果との差から空間の効果が裏付けされた。さら
に、図２で示した遮音材ａ１の上下を逆にした場合にお
いても測定値は１０４dbとなり、遮音空間の伝達下流側
に厚手の不織布を配置した場合の有効性を確認すること
ができた。図２にて示した遮音材の軟質樹脂材を非発泡
ゴムに換えたものの測定値１０４db。軟質樹脂材として
ＥＶＡを使用したものは１０３dbであった。The measured value of a foam rubber material entirely adhered to the mating surface of the upper and lower sound insulating materials (with no sound insulating space) is limited to 105 db, and the sound insulating material a1 of the present invention is used.
The effect of the space was supported by the difference from the measurement result. Further, even when the sound insulating material a1 shown in FIG. 2 was turned upside down, the measured value was 104 db, confirming the effectiveness when a thick nonwoven fabric was arranged on the downstream side of the transmission of the sound insulating space. A measured value of 104 db obtained by replacing the soft resin material of the sound insulating material shown in FIG. 2 with non-foamed rubber. The case where EVA was used as the soft resin material was 103 db.
【００１６】また、図２にて示す遮音材と全く同様な構
造にて積層シートｂ１を構成することによれば、該積層
シートｂ１は、地下水の排水用として効果的に使用する
ことができる。例えば、上記した積層シートｂ１をトン
ネル掘削作業を行なう際において、掘削穴の内周面を内
側から覆うように配設する。これによれば、掘削穴周面
から滴下する地下水をシートの不織布内１，２に吸収
し、さらにシート内の間隙４に沿って流下させながら掘
削穴の両側部に位置するシート最下部から速やかに排水
することができる。Further, according to the laminated sheet b1 having the same structure as that of the sound insulating material shown in FIG. 2, the laminated sheet b1 can be effectively used for draining groundwater. For example, when performing the tunnel excavation work, the above-described laminated sheet b1 is disposed so as to cover the inner peripheral surface of the excavation hole from the inside. According to this, the groundwater dripping from the peripheral surface of the excavation hole is absorbed into the nonwoven fabrics 1 and 2 of the sheet, and is quickly caused to flow down along the gap 4 in the sheet from the lowermost portion of the sheet located on both sides of the excavation hole. Can be drained.
【００１７】尚、積層シートを上記したように排水用と
して使用する場合においては、上下両不織布１，２間の
間隙４を送水路として機能させるため、間隙４が水の排
水方向に連通している必要がある。例えば図２、図４に
て示す構造のものは使用可能であるが、図３にて示した
もののように間隙４が排水の流れる方向に塞がれている
構造では排水用の積層シートとして使用することはでき
ない。When the laminated sheet is used for drainage as described above, the gap 4 between the upper and lower nonwoven fabrics 1 and 2 functions as a water channel, so that the gap 4 communicates with the drainage direction of water. Need to be. For example, the structure shown in FIG. 2 and FIG. 4 can be used, but in the structure in which the gap 4 is closed in the direction of drainage flow as shown in FIG. I can't.
【図１】 本発明を実施した遮音材の縦断面図。FIG. 1 is a longitudinal sectional view of a sound insulating material embodying the present invention.
【図２】 同遮音材を一部切欠して示す斜視図。FIG. 2 is a perspective view showing the sound insulating material with a part cut away.
【図３】 発泡ゴム材を格子状に付着させた遮音材を一
部切欠して示す斜視図。FIG. 3 is a perspective view showing a sound insulation material in which a foamed rubber material is adhered in a lattice shape, with a part cut away.
【図４】 発泡ゴム材を点状に付着させた遮音材を一部
切欠して示す斜視図。FIG. 4 is a perspective view showing a sound insulation material to which a foamed rubber material is adhered in a dot shape, with a part cut away.
【図５】 受来の遮音材を示す縦断面図。FIG. 5 is a longitudinal sectional view showing a received sound insulating material.
ａ１・・・遮音材 ｂ１・・・積層シート １・・・上不織布 ２・・・下不織布 ３・・・軟質樹脂材 ４・・・間隙 a1: sound insulation material b1: laminated sheet 1 ... upper nonwoven fabric 2 ... lower nonwoven fabric 3 ... soft resin material 4 ... gap
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) D06N 7/00 - 7/06 B32B 5/00 - 5/32 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. 7 , DB name) D06N 7 /00-7/06 B32B 5/00-5/32
Claims (3)
の合い面同士を直接的に対向させ、これら合い面の間に
軟質樹脂材を疎らに介在させ上下両不織布の間に間隙を
形成してなる遮音材。1. An upper nonwoven fabric and a lower nonwoven fabric are superimposed, their mating surfaces are directly opposed to each other, and a soft resin material is sparsely interposed between the mating surfaces to form a gap between the upper and lower nonwoven fabrics. Sound insulation material.
請求項１記載の遮音材。2. The sound insulating material according to claim 1, wherein the lower nonwoven fabric is thicker than the upper nonwoven fabric.
の合い面同士を直接的に対向させ、これら合い面の間に
軟質樹脂材を疎らに介在させ上下両不織布の間に間隙を
形成してなる積層シート。3. An upper nonwoven fabric and a lower nonwoven fabric are superimposed, their mating surfaces are directly opposed to each other, and a soft resin material is sparsely interposed between the mating surfaces to form a gap between the upper and lower nonwoven fabrics. Laminated sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31980893A JP3212782B2 (en) | 1993-12-20 | 1993-12-20 | Sound insulation material and laminated sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP31980893A JP3212782B2 (en) | 1993-12-20 | 1993-12-20 | Sound insulation material and laminated sheet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH07173777A JPH07173777A (en) | 1995-07-11 |
| JP3212782B2 true JP3212782B2 (en) | 2001-09-25 |
Family
ID=18114432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP31980893A Expired - Fee Related JP3212782B2 (en) | 1993-12-20 | 1993-12-20 | Sound insulation material and laminated sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3212782B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6385043B2 (en) * | 2013-10-15 | 2018-09-05 | 大和ハウス工業株式会社 | Sound insulation structure for sound transmitted through gaps inside buildings |
-
1993
- 1993-12-20 JP JP31980893A patent/JP3212782B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07173777A (en) | 1995-07-11 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |