JP2003316362A - Soundproofing material and method of using this soundproofing material - Google Patents

Soundproofing material and method of using this soundproofing material

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Publication number
JP2003316362A
JP2003316362A JP2002117137A JP2002117137A JP2003316362A JP 2003316362 A JP2003316362 A JP 2003316362A JP 2002117137 A JP2002117137 A JP 2002117137A JP 2002117137 A JP2002117137 A JP 2002117137A JP 2003316362 A JP2003316362 A JP 2003316362A
Authority
JP
Japan
Prior art keywords
soundproofing
noise source
bubble sheet
soundproof
performance
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
Application number
JP2002117137A
Other languages
Japanese (ja)
Inventor
Kazuhiko Kozuka
和彦 小塚
Mamoru Nozawa
守 野澤
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Niterra Co Ltd
Original Assignee
NGK Spark Plug Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NGK Spark Plug Co Ltd filed Critical NGK Spark Plug Co Ltd
Priority to JP2002117137A priority Critical patent/JP2003316362A/en
Publication of JP2003316362A publication Critical patent/JP2003316362A/en
Pending legal-status Critical Current

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  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a soundproofing material which exhibits a high soundproofing effect in spite of a low cost while the conventional soundproofing material requires an enormous investment to create a comfortable working environment to make earplugs unnecessary for its high performance equal high cost and to provide a method of using such soundproofing material. <P>SOLUTION: The soundproofing material 1 which is a composite composed of a base material 2 having the soundproofing performance and a foamed sheet 3 obtained by forming a number of closed cells 3d hermetically sealed gas to a synthetic resin film 3c and is arranged with the foamed sheet 3 on a noise source side is provided. Although the base material 2 and the foamed sheet 3 respectively independently exhibit the soundproofing performance, both are superposed on each other and the foamed sheet 3 is directed toward the noise source side, by which the soundproofing performance more than the summation of both is exhibited. <P>COPYRIGHT: (C)2004,JPO

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【発明の属する技術分野】本発明は、騒音を軽減させる
防音材及びその防音材の使用方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soundproof material for reducing noise and a method of using the soundproof material.

【0002】[0002]

【従来の技術】工場内の機械騒音を低下させることは作
業環境を改善する上で重要な課題である。そのような目
的に使用する防音材は、例えば鉛繊維不織布を芯材とし
て塩化ビニールを一体化させたものなど、多種多様に存
在する。
2. Description of the Related Art Reducing machine noise in a factory is an important issue for improving the working environment. There are various types of soundproofing materials used for such a purpose, for example, those in which vinyl chloride is integrated with a lead fiber non-woven fabric as a core material.

【0003】[0003]

【発明が解決しようとする課題】しかしながら従来の防
音材は高性能=高コストであるため、耳栓不要の快適な
作業環境を作るには莫大な投資を必要とする。
However, since the conventional soundproofing material has high performance = high cost, enormous investment is required to create a comfortable working environment without earplugs.

【0004】本発明は上記に鑑みなされたもので、その
目的は低コストでありながら高い防音効果を発揮する防
音材を提供し、また、そのような防音材の使用方法を提
供することにある。
The present invention has been made in view of the above problems, and an object thereof is to provide a soundproof material which exhibits a high soundproofing effect at a low cost and a method of using such a soundproofing material. .

【0005】[0005]

【課題を解決するための手段】上記の目的を達成するた
め本発明は、防音性能を有する母材と、気体を密封した
独立気泡体を合成樹脂フィルムに多数形成してなる気泡
シートとの複合体であって、騒音源側に気泡シートを配
置するようにした防音材を提供する。
In order to achieve the above object, the present invention is a composite of a base material having a soundproofing property and a bubble sheet formed by forming a large number of gas-sealed closed cells on a synthetic resin film. Provided is a soundproof material which is a body and has an air bubble sheet arranged on the noise source side.

【0006】母材は単独で防音性能を発揮し、また、気
泡シートも単独で防音性能を発揮するが、両者を重ね合
わせて気泡シートを騒音源に向かわせるようにすること
で両者の総和以上の防音性能を発揮する。従って、例え
ば既存の防音シートを母材とし、それに気泡シートを組
み合わせるだけの少ないコストで、母材の持つ防音性能
を飛躍的に高めることができる。また、請求項2のよう
に気泡シートを複数枚重ねれば、さらに防音性能が向上
する。
The base material independently exhibits soundproofing performance, and the bubble sheet independently also exhibits soundproofing performance. However, by superimposing both of them and directing the bubble sheet toward the noise source, the total amount of the two or more is exceeded. Demonstrate the soundproofing performance of. Therefore, for example, the existing soundproofing sheet can be used as a base material, and the soundproofing performance of the base material can be dramatically improved at a low cost by only combining it with an air bubble sheet. Further, when a plurality of air bubble sheets are stacked as in claim 2, the soundproof performance is further improved.

【0007】そして請求項3のように粉砕機の騒音源で
ある粉砕容器に対しその外表面を、気泡シートを内側に
向けた状態でカバーするようにして本発明の防音材を使
用すれば、粉砕機の運転騒音が飛躍的に改善できる。ま
た、請求項4のように騒音源の周りに設置する柵に気泡
シートを騒音源側に向かわせるようにして本発明の防音
材を取り付けて使用しても工場内の騒音軽減対策として
有効である。また、請求項5のように騒音源を囲う防音
用ボックスの内面に気泡シートを騒音源側に向かわせる
ようにして本発明の防音材を取り付けた場合も工場内の
騒音軽減対策として有効である。さらにまた請求項6の
ように気泡シートを建物の内側及び/又は外側に向けて
本発明の防音材を建物の壁材に取り付けた場合は、建物
の防音対策として有効である。
When the soundproof material of the present invention is used by covering the outer surface of the crushing container which is the noise source of the crusher as described in claim 3 with the bubble sheet facing inward, The operation noise of the crusher can be dramatically improved. Further, even if the soundproof material of the present invention is attached to the fence installed around the noise source so that the bubble sheet faces the noise source side as in claim 4, it is effective as a noise reduction measure in the factory. is there. Also, when the soundproof material of the present invention is attached to the inner surface of the soundproof box surrounding the noise source so that the bubble sheet faces the noise source side as in claim 5, it is effective as a noise reduction measure in the factory. . Furthermore, when the soundproof material of the present invention is attached to the wall material of the building with the bubble sheet facing the inside and / or the outside of the building as in claim 6, it is effective as a soundproofing measure for the building.

【0008】[0008]

【発明の実施の形態】以下に本発明の実施の形態を図面
を参照しつつ説明する。なお、図1は防音材の分解斜視
図、図2は要部の拡大断面図、図3は他の形態を示す要
部の拡大断面図である。
BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. 1 is an exploded perspective view of the soundproof material, FIG. 2 is an enlarged cross-sectional view of a main part, and FIG. 3 is an enlarged cross-sectional view of the main part showing another embodiment.

【0009】本発明の防音材1は、図1に示したように
防音性能を有する母材2と、気泡シート3を組み合わせ
た複合体である。前記母材2は防音性能(遮音性能又は
吸音性能)を発揮するように仕向けられた素材であれば
よく、軟質、硬質の何れでもよい。一方、気泡シート3
は、多数のキャップ体3aを有するポリエチレン製のキ
ャップフィルム3bを平坦なポリエチレン製の合成樹脂
フィルム3c(バックフィルムともいう。)に貼り合わ
せて独立気泡体3dを形成した公知のものである。な
お、気泡シート3は図示しないがキャップフィルム3b
の上面にさらに平坦なポリエチレン製のライナーフィル
ムを貼り合わせたものでもよく、また、材質もポリエチ
レンに限定されない。さらにまた、気泡シート3は1枚
構造に限定されず、図3のように2枚又はそれ以上の複
数枚を重ね合わせるようにしてもよい。
The soundproof material 1 of the present invention is a composite body in which a base material 2 having a soundproof performance and a bubble sheet 3 are combined as shown in FIG. The base material 2 may be any material as long as it is a material intended to exhibit soundproof performance (sound insulation performance or sound absorption performance), and may be soft or hard. On the other hand, bubble sheet 3
Is a publicly known one in which a polyethylene cap film 3b having a large number of cap bodies 3a is attached to a flat polyethylene synthetic resin film 3c (also referred to as a back film) to form a closed cell body 3d. The bubble sheet 3 is not shown, but the cap film 3b.
A flat polyethylene liner film may be attached to the upper surface of the above, and the material is not limited to polyethylene. Furthermore, the bubble sheet 3 is not limited to the one-sheet structure, and two or more sheets may be stacked as shown in FIG.

【0010】前記母材2と気泡シート3は接着剤で貼り
合わせて一体にしてもよいし、単に重ね合わせるだけで
もよい。要は使用状態において母材2と気泡シート3同
士が重なり合っていればよいのである。
The base material 2 and the air bubble sheet 3 may be bonded to each other with an adhesive agent or may be simply laminated. The point is that the base material 2 and the bubble sheet 3 should overlap each other in the use state.

【0011】次に本発明の防音材1の第1の使用方法に
ついて図4に基づき説明する。なお、図4は粉砕機の代
表例であるボールミル4(図5参照)の粉砕容器4aを
示す斜視図である。周知のようにボールミル4は、ドラ
ム型の粉砕容器4aの中心軸4bを水平に保持し、その
粉砕容器4a内にアルミナ、ジルコニアなどの球石(粉
砕媒体ともいう。)と、被粉砕物と、水を入れて長時間
回転させ、粉砕容器4a内で球石等を繰り返し上昇・落
下させることにより被粉砕物を細かく粉砕するもので、
鉱石類やセメント原料,セメントクリンカーなどの大量
微粉砕をはじめ,窯業原料,化学工業原料などの微粉砕
〜極微粉砕に広く使われている。
Next, a first method of using the soundproof material 1 of the present invention will be described with reference to FIG. 4 is a perspective view showing a crushing container 4a of a ball mill 4 (see FIG. 5), which is a typical example of a crusher. As is well known, the ball mill 4 holds a central axis 4b of a drum-shaped crushing container 4a horizontally, and in the crushing container 4a, a spherical stone (also referred to as a crushing medium) such as alumina or zirconia and an object to be crushed. , Which is rotated by pouring water for a long time to repeatedly raise and drop balls or the like in the crushing container 4a to finely crush the object to be crushed,
It is widely used for large-scale pulverization of ores, cement raw materials, cement clinker, etc., as well as ceramic raw materials and chemical industrial raw materials.

【0012】上記ボールミル4の欠点は、球石等の上昇
・落下運動に起因する運転騒音の大きさにある。そこで
粉砕容器4aに対しその外表面を、図4に示したように
気泡シート3を内側に向けて本発明の防音材1でカバー
すれば、前記運転騒音を大幅に軽減させることができ
る。防音材1は粉砕容器4aの胴部4cと円板部4dの
全てをカバーするのが最良であるが、少なくとも胴部4
cをカバーするだけでもよい。防音材1は両面テープで
貼り付けることで固定できるが、バンドで縛る、面状フ
ァスナで止める、等の固定方法を採用してもよい。
The drawback of the ball mill 4 is that the operation noise is caused by the ascending / descending movement of a ball or the like. Therefore, by covering the outer surface of the crushing container 4a with the soundproof material 1 of the present invention with the bubble sheet 3 facing inward as shown in FIG. 4, the operation noise can be greatly reduced. It is best that the soundproof material 1 covers all of the body portion 4c and the disk portion 4d of the crushing container 4a, but at least the body portion 4
It is only necessary to cover c. The soundproofing material 1 can be fixed by attaching it with a double-sided tape, but a fixing method such as binding with a band or stopping with a sheet fastener may be adopted.

【0013】なお、いうまでもなくボールミル4は摩砕
式粉砕機の一例であって、他の摩砕式粉砕機であるロッ
ドミル、自生粉砕ミル、振動ミル、遊星ミル、撹拌ミル
等にも同様に適用できる。また、摩砕式粉砕機以外でも
圧縮力による粉砕機、剪断力による粉砕機、衝撃力によ
る粉砕機等、あらゆる粉砕機に対しても適用可能であ
る。
Needless to say, the ball mill 4 is an example of a grinding mill, and other grinding mills such as a rod mill, a self-grinding mill, a vibration mill, a planetary mill, and a stirring mill can also be used. Applicable to Further, other than the grinding type crusher, it can be applied to any crushers such as a crusher using a compression force, a crusher using a shearing force, and a crusher using an impact force.

【0014】[0014]

【実証試験1】母材2として東レ・モノフィラメント株
式会社製の商品名「東レ防音材−FC♯7000M」
(以下単に市販品という。)を使用し、これにポリエチ
レン製で独立気泡体3dの外径がφ10mmである気泡
シート3を重ねて本発明の防音材1を製造し、気泡シー
ト3を内側にまた母材2を外側に向けた状態にしてボー
ルミル4の粉砕容器4a(容量=200リットル)の全
外表面をカバーした。この粉砕容器4aの中にφ20m
mの球石150Kg、アルミナ粉末50Kg、水30K
gを入れ、35rpmで回転させて運転騒音を測定し
た。比較例として、防音対策なしで運転した場合の運転
騒音、前記市販品のみを防音材とした場合の運転騒音、
前記市販品に厚さ20mmのウレタンフォームを重ねて
防音材とした場合の運転騒音、前記市販品に厚さ25m
mのグラスウールを重ねて防音材とした場合の運転騒
音、独立気泡体3dの外径がφ10mmである気泡シー
トのみを防音材とした場合の運転騒音をそれぞれ測定し
た。なお、騒音の測定には株式会社カスタム製の騒音計
「SL−1350」を使用した。その結果を表1に示
す。
[Demonstration test 1] Toray Monofilament Co., Ltd. product name “Toray soundproofing material-FC # 7000M” as base material 2
(Hereinafter simply referred to as a commercial product) is used, and a bubble sheet 3 made of polyethylene and having an outer diameter of the closed cell 3d having a diameter of 10 mm is overlaid to produce a soundproof material 1 of the present invention. In addition, the base material 2 was directed to the outside to cover the entire outer surface of the crushing container 4a (volume = 200 liters) of the ball mill 4. Φ20m in this crushing container 4a
m stone 150Kg, alumina powder 50Kg, water 30K
The operation noise was measured by adding g and rotating at 35 rpm. As a comparative example, operation noise when operated without soundproofing measures, operation noise when only the commercially available product is used as a soundproof material,
Operating noise when a urethane foam having a thickness of 20 mm is overlaid on the commercially available product as a soundproof material, and the commercially available product has a thickness of 25 m.
The operation noise was measured when m of glass wool was overlaid as a soundproof material, and the operation noise was measured when only the air bubble sheet having the outer diameter of the closed cells 3d of φ10 mm was used as the soundproof material. A noise meter "SL-1350" manufactured by Custom Co., Ltd. was used for measuring the noise. The results are shown in Table 1.

【0015】[0015]

【表1】 [Table 1]

【0016】試験結果から明らかなように、母材2たる
市販品は単独で防音性能を発揮し、また、気泡シート3
も単独で防音性能を発揮するが、両者を重ね合わせて気
泡シート3を騒音源に向かわせるようにすることで両者
の総和以上の防音性能を発揮することが確認できた。ま
た、この組み合わせによる効果は、同じ市販品にウレタ
ンフォームやグラスウールを組み合わせた場合に比べて
顕著であることも確認され、本発明の効果の高さが証明
された。
As is apparent from the test results, the commercially available base material 2 alone exhibits soundproofing performance, and the foam sheet 3 is used.
It can be confirmed that the soundproofing performance is exhibited by itself, but by superposing the two to direct the bubble sheet 3 toward the noise source, the soundproofing performance exceeding the sum of the two is exhibited. It was also confirmed that the effect of this combination was more remarkable than the case of combining urethane foam and glass wool in the same commercial product, demonstrating the high effect of the present invention.

【0017】次に本発明の防音材1の第2の使用方法に
ついて図5に基づき説明する。図5に示したように工場
内に設置したボールミル4の近傍には安全対策用の柵5
が設けられている。この柵5のボールミル4(騒音源)
に対向する側の面(内面)に本発明の防音材1を、気泡
シート3をボールミル4に向かわせる向きにして貼り付
ける。こうすることによりボールミル4のような工場内
の装置類から発する騒音を大幅に軽減させることができ
る。なお、図5に示したボールミル4は壁際に設置され
ているために柵5を1つにしたが、状況によっては複数
の柵5を組み合わせてボールミル4(騒音源)の全周を
囲うようにしてもよい。
Next, a second method of using the soundproof material 1 of the present invention will be described with reference to FIG. As shown in Fig. 5, a fence 5 for safety measures is installed near the ball mill 4 installed in the factory.
Is provided. Ball mill 4 of this fence 5 (noise source)
The soundproofing material 1 of the present invention is attached to the surface (inner surface) on the side opposite to the so that the bubble sheet 3 faces the ball mill 4. By doing so, it is possible to significantly reduce the noise generated from the devices in the factory such as the ball mill 4. The ball mill 4 shown in FIG. 5 has one fence 5 because it is installed near the wall, but depending on the situation, a plurality of fences 5 may be combined to surround the entire circumference of the ball mill 4 (noise source). May be.

【0018】[0018]

【実証試験2】前記市販品を母材2とし、これにポリエ
チレン製で独立気泡体3dの外径がφ10mmである気
泡シート3を2枚重ねた本発明の防音材1と、同じくポ
リエチレン製で独立気泡体3dの外径がφ30mmであ
る気泡シート3を2枚重ねた本発明の防音材1をそれぞ
れ製造し、それらを前記柵5に貼り、ボールミル4を運
転させて柵5の外側の騒音を前記騒音計で測定した。な
お、比較例として、柵5に防音対策を施さないで運転し
た場合の騒音、独立気泡体3dの外径がφ10mmであ
る気泡シートを1枚だけ柵5に貼り付けた場合の騒音、
それと同じ気泡シートを2重にして柵5に貼り付けた場
合の騒音、独立気泡体3dの外径がφ30mmである気
泡シートを1枚だけ柵5に貼り付けた場合の騒音、それ
と同じ気泡シートを2重にして柵5に貼り付けた場合の
騒音、前記市販品のみを柵5に貼り付けた場合の騒音を
それぞれ柵越しに測定した。その結果を表2に示す。
[Demonstration test 2] The commercially available product is used as the base material 2, and the soundproof material 1 of the present invention in which two bubble sheets 3 made of polyethylene and having an outer diameter of the closed cell 3d having a diameter of 10 mm are stacked on the base material 2, and the soundproof material 1 made of polyethylene are also used. The soundproof material 1 of the present invention is manufactured by stacking two air bubble sheets 3 each having an outer diameter of the closed cell body 3d of φ30 mm, and these are attached to the fence 5, and the ball mill 4 is operated to make noise outside the fence 5. Was measured by the sound level meter. As a comparative example, noise when the fence 5 is operated without soundproofing, noise when only one bubble sheet having an outer diameter of the closed cell 3d of 10 mm is attached to the fence 5,
Noise when the same bubble sheet is duplicated and attached to the fence 5, noise when only one bubble sheet having an outer diameter of the closed cell body 3d of φ30 mm is attached to the fence 5, and the same bubble sheet The noise in the case where two sheets were stuck to the fence 5 and the noise in the case where only the commercial product was stuck to the fence 5 were measured over the fence. The results are shown in Table 2.

【0019】[0019]

【表2】 [Table 2]

【0020】試験結果から明らかなように、母材2たる
市販品は単独で防音性能を発揮し、また、気泡シート3
も単独で防音性能を発揮するが、両者を重ね合わせて気
泡シート3を騒音源に向かわせるようにすることで両者
の総和以上の防音性能を発揮することが確認できた。ま
た、今回の実証試験2で気泡シート3の独立気泡体3d
が大径であるほど防音性能が高いということが明らかに
なった。
As is clear from the test results, the commercially available base material 2 alone exhibits soundproofing performance, and the bubble sheet 3
It can be confirmed that the soundproofing performance is exhibited by itself, but by superposing the two to direct the bubble sheet 3 toward the noise source, the soundproofing performance exceeding the sum of the two is exhibited. Also, in this verification test 2, the closed cell 3d of the cell sheet 3
It was revealed that the larger the diameter, the higher the soundproof performance.

【0021】次に本発明の防音材1の第3の使用方法に
ついて説明する。従来よりモーターなどの騒音源を防音
用ボックスで囲う騒音対策は行われていた。そこでその
ような防音用ボックスの内面に気泡シート3を騒音源側
に向かわせて取り付けるようにすれば、防音用ボックス
の防音性能を飛躍的に高めることができる。なお、この
効果は前記実証試験2の結果から推認可能である。
Next, a third method of using the soundproof material 1 of the present invention will be described. Conventionally, noise countermeasures have been taken by surrounding noise sources such as motors with a soundproof box. Therefore, if the bubble sheet 3 is attached to the inner surface of such a soundproof box so as to face the noise source side, the soundproof performance of the soundproof box can be dramatically improved. This effect can be inferred from the result of the verification test 2.

【0022】次に本発明の防音材1の第4の使用方法に
ついて図6に基づき説明する。図6は枠組壁工法(通
称:ツーバイフォー工法)による建物の壁材6の断面図
であり、右から順に外壁材6a、外壁材6aを支持する
構造用合板6b、本発明の防音材1、断熱材6c、石膏
ボード6dである。本発明の防音材1は気泡シート3が
建物の外側に向かうように構造用合板6bの内面に密着
させてあり、従って室外から室内に侵入する騒音が防止
できる。また、図示しないが石膏ボード6dの内面に気
泡シート3を密着させて気泡シート3を建物の内側に向
かわせるようにすれば、室内から室外への音の漏れ出し
を防止することができる。さらにまた、構造用合板6b
と石膏ボード6dにそれぞれ防音材1を上記の態様で取
り付ければ、室内への騒音の侵入と室外への音の漏れ出
しを同時に防止することも可能である。なお、外壁材6
aが野外等環境の悪い雰囲気にさらされない場合には、
防音材1を外壁材6aの外側に密着させると防音効果が
さらに向上する。
Next, a fourth method of using the soundproof material 1 of the present invention will be described with reference to FIG. FIG. 6 is a cross-sectional view of a wall material 6 of a building by a framed wall construction method (commonly known as a two-by-four construction method). From the right, an outer wall material 6a, a structural plywood 6b supporting the outer wall material 6a, a soundproofing material 1 of the present invention, and heat insulation. The material 6c and the gypsum board 6d. In the soundproofing material 1 of the present invention, the air bubble sheet 3 is brought into close contact with the inner surface of the structural plywood 6b so that the air bubble sheet 3 faces the outside of the building, and therefore noise that enters the room from the outside can be prevented. Further, although not shown, if the bubble sheet 3 is brought into close contact with the inner surface of the gypsum board 6d so that the bubble sheet 3 faces the inside of the building, it is possible to prevent the sound from leaking from the room to the outside. Furthermore, structural plywood 6b
If the soundproofing material 1 is attached to the gypsum board 6d and the gypsum board 6d, respectively, it is possible to prevent the noise from entering the room and the sound from leaking out of the room at the same time. The outer wall material 6
If a is not exposed to a bad environment such as outdoors,
When the soundproof material 1 is brought into close contact with the outside of the outer wall material 6a, the soundproof effect is further improved.

【0023】以上本発明を実施の形態について説明した
が、もちろん本発明は上記実施形態に限定されるもので
はない。例えば本発明の防音材を防音カーテンに利用す
ることも可能である。
Although the present invention has been described with reference to the embodiments, the present invention is of course not limited to the above embodiments. For example, the soundproof material of the present invention can be used for a soundproof curtain.

【0024】[0024]

【発明の効果】母材は単独で防音性能を発揮し、また、
気泡シートも単独で防音性能を発揮するが、両者を重ね
合わせて気泡シートを騒音源に向かわせるようにするこ
とで両者の総和以上の防音性能を発揮する。従って、例
えば既存の防音シートを母材とし、それに気泡シートを
組み合わせるだけの少ないコストで、母材の持つ防音性
能を飛躍的に高めることができる。また、請求項2のよ
うに気泡シートを複数枚重ねれば、さらに防音性能が向
上する。
EFFECTS OF THE INVENTION The base material exhibits soundproofing performance by itself, and
The air bubble sheet also exerts soundproofing performance by itself, but by superposing both to direct the air bubble sheet toward the noise source, the soundproofing performance exceeding the sum of both is exhibited. Therefore, for example, the existing soundproofing sheet can be used as a base material, and the soundproofing performance of the base material can be dramatically improved at a low cost by only combining it with an air bubble sheet. Further, when a plurality of air bubble sheets are stacked as in claim 2, the soundproof performance is further improved.

【0025】そして請求項3のように粉砕機の騒音源で
ある粉砕容器に対しその外表面を、気泡シートを内側に
向けた状態でカバーするようにして本発明の防音材を使
用すれば、粉砕機の運転騒音が飛躍的に改善できる。ま
た、請求項4のように騒音源の周りに設置する柵に気泡
シートを騒音源側に向かわせるようにして本発明の防音
材を取り付けても工場内の騒音軽減対策として有効であ
る。また、請求項5のように騒音源を囲う防音用ボック
スの内面に気泡シートを騒音源側に向かわせて本発明の
防音材を取り付けた場合も工場内の騒音軽減対策として
有効である。さらにまた請求項6のように気泡シートを
建物の内側及び/又は外側に向けて本発明の防音材を建
物の壁材に取り付けるようにした場合は、建物の防音性
能向上に効果がある。
When the soundproof material of the present invention is used by covering the outer surface of the crushing container, which is the noise source of the crusher, with the bubble sheet facing inward, as described in claim 3. The operation noise of the crusher can be dramatically improved. Further, even if the soundproof material of the present invention is attached to the fence installed around the noise source so that the bubble sheet is directed to the noise source side as in claim 4, it is effective as a noise reduction measure in the factory. Further, when the soundproof material of the present invention is attached to the inner surface of the soundproof box surrounding the noise source with the bubble sheet facing the noise source side as in claim 5, it is also effective as a noise reduction measure in the factory. Furthermore, in the case where the soundproof material of the present invention is attached to the wall material of the building by directing the bubble sheet toward the inside and / or the outside of the building as in claim 6, it is effective in improving the soundproof performance of the building.

【図面の簡単な説明】[Brief description of drawings]

【図1】 防音材の分解斜視図である。FIG. 1 is an exploded perspective view of a soundproof material.

【図2】 要部の拡大断面図である。FIG. 2 is an enlarged cross-sectional view of a main part.

【図3】 他の形態を示す要部の拡大断面図である。FIG. 3 is an enlarged cross-sectional view of a main part showing another embodiment.

【図4】 ボールミルの粉砕容器を示す斜視図である。FIG. 4 is a perspective view showing a crushing container of a ball mill.

【図5】 ボールミルと柵を示す断面図である。FIG. 5 is a sectional view showing a ball mill and a fence.

【図6】 建物の壁材を示す要部の断面図である。FIG. 6 is a cross-sectional view of a main part showing a wall material of a building.

【符号の説明】[Explanation of symbols]

1 …防音材 2 …母材 3 …気泡シート 3c…合成樹脂フィルム 3d…独立気泡体 4 …粉砕機(ボールミル) 4a…粉砕容器 5 …柵 6 …壁材 1 ... Soundproof material 2 ... Base material 3 ... Bubble sheet 3c ... Synthetic resin film 3d ... closed-cell body 4 ... Crusher (ball mill) 4a ... Crushing container 5 ... fence 6… Wall material

Claims (6)

【特許請求の範囲】[Claims] 【請求項1】 防音性能を有する母材と、気体を密封し
た独立気泡体を合成樹脂フィルムに多数形成してなる気
泡シートとの複合体であって、騒音源側に気泡シートを
配置するようにしたことを特徴とする防音材。
1. A composite of a base material having soundproofing performance and an air bubble sheet formed by forming a large number of closed air bubbles sealed in a synthetic resin film, wherein the air bubble sheet is arranged on the noise source side. Soundproofing material characterized by
【請求項2】 前記気泡シートを複数枚重ねるようにし
たことを特徴とする請求項1記載の防音材。
2. The soundproof material according to claim 1, wherein a plurality of the air bubble sheets are stacked.
【請求項3】 粉砕機の騒音源である粉砕容器に対しそ
の外表面を、気泡シートを内側に向けた状態でカバーす
るようにしたことを特徴とする請求項1又は2に記載の
防音材の使用方法。
3. The soundproofing material according to claim 1, wherein the crushing container, which is a noise source of the crusher, is covered with the outer surface of the crushing container with the bubble sheet facing inward. How to use.
【請求項4】 騒音源の周りに設置する柵に気泡シート
を騒音源側に向かわせるようにして取り付けるようにし
たことを特徴とする請求項1又は2に記載の防音材の使
用方法。
4. The method of using the soundproofing material according to claim 1, wherein a bubble sheet is attached to a fence installed around the noise source so as to face the noise source side.
【請求項5】 騒音源を囲う防音用ボックスの内面に気
泡シートを騒音源側に向かわせて取り付けるようにした
ことを特徴とする請求項1又は2に記載の防音材の使用
方法。
5. The method of using the soundproofing material according to claim 1, wherein an air bubble sheet is attached to the inner surface of a soundproof box surrounding the noise source so as to face the noise source side.
【請求項6】 気泡シートを建物の内側及び/又は外側
に向けて建物の壁材に取り付けるようにしたことを特徴
とする請求項1又は2に記載の防音材の使用方法。
6. The method of using the soundproofing material according to claim 1, wherein the foam sheet is attached to the wall material of the building so as to face the inside and / or the outside of the building.
JP2002117137A 2002-04-19 2002-04-19 Soundproofing material and method of using this soundproofing material Pending JP2003316362A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002117137A JP2003316362A (en) 2002-04-19 2002-04-19 Soundproofing material and method of using this soundproofing material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2002117137A JP2003316362A (en) 2002-04-19 2002-04-19 Soundproofing material and method of using this soundproofing material

Publications (1)

Publication Number Publication Date
JP2003316362A true JP2003316362A (en) 2003-11-07

Family

ID=29534436

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2002117137A Pending JP2003316362A (en) 2002-04-19 2002-04-19 Soundproofing material and method of using this soundproofing material

Country Status (1)

Country Link
JP (1) JP2003316362A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005297858A (en) * 2004-04-14 2005-10-27 Sumitomo Rubber Ind Ltd Assembly of pneumatic tire and rim
JP2012521924A (en) * 2009-03-30 2012-09-20 エアバス オペレーションズ ゲーエムベーハー Aircraft having an insulation system for thermal insulation and sound insulation

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005297858A (en) * 2004-04-14 2005-10-27 Sumitomo Rubber Ind Ltd Assembly of pneumatic tire and rim
JP2012521924A (en) * 2009-03-30 2012-09-20 エアバス オペレーションズ ゲーエムベーハー Aircraft having an insulation system for thermal insulation and sound insulation

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