JPS60236736A - Soundproof sheet - Google Patents
Soundproof sheetInfo
- Publication number
- JPS60236736A JPS60236736A JP59093283A JP9328384A JPS60236736A JP S60236736 A JPS60236736 A JP S60236736A JP 59093283 A JP59093283 A JP 59093283A JP 9328384 A JP9328384 A JP 9328384A JP S60236736 A JPS60236736 A JP S60236736A
- Authority
- JP
- Japan
- Prior art keywords
- sheet
- sound
- soundproof
- hollow
- absorbing
- 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
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
- Laminated Bodies (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
(イ)産業上の利用分野
本発明は空気調和機の内壁や圧縮機の外壁に添着する防
音シートに関する。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a soundproof sheet attached to the inner wall of an air conditioner or the outer wall of a compressor.
(ロ) 従来技術
一般に空気調和機の内壁に騒音が外方へ伝播しないよう
に吸音材を貼着している。この−例として実公昭57−
9628号公報のようにグラスファイバーからなる繊維
状断熱材層と、この繊維が吹きとばされないようにこの
断熱材層の両面に貼着した被徨層とから吸音材を構成し
て空気調和機の内壁に貼着している。しかしながら、斯
かる吸音材は中間の断熱材層で騒音を吸収して防音する
J−/7)−r−女1fJ?#茹÷dj−1−/7NR
i讐喜bhJLf”−(11hイ亀1プζ讐、θ)の、
低周波領域の音は断熱材層ではとんと吸収されずに外方
へ透過してしまい、低周波音が耳ざわりとなる欠点を有
していた。(b) Prior art In general, sound-absorbing materials are attached to the inner walls of air conditioners to prevent noise from propagating outward. As an example of this,
As disclosed in Japanese Patent No. 9628, an air conditioner is manufactured by constructing a sound absorbing material from a fibrous heat insulating layer made of glass fiber and a torrent layer attached to both sides of the heat insulating layer to prevent the fibers from being blown away. It is attached to the inner wall of. However, such sound-absorbing materials absorb noise and provide soundproofing with an intermediate insulation layer. #Boiled ÷ dj-1-/7NR
i hate bhJLf"-(11h igame1puζen, θ),
Sound in the low frequency range is not completely absorbed by the heat insulating material layer and is transmitted outward, which has the disadvantage that the low frequency sound is harsh on the ears.
(→ 発明の目的
本発明は高周波音のみならず低周波音も吸収して防音効
果を向上させる新規な防音シートを提供することにある
。(→ Purpose of the Invention The object of the present invention is to provide a novel soundproof sheet that absorbs not only high-frequency sound but also low-frequency sound and improves the soundproofing effect.
に)発明の構成
本発明の防音シートは独立した空気溜まり部を多数有す
る中空シートを吸音シートと遮音シートとで挾んで接着
して構成することにより、高周波音を吸音シートで吸収
すると共に低周波音を中空シートで減衰させて遮音シー
トで遮断するようにしたものである。B) Structure of the Invention The soundproof sheet of the present invention is constructed by sandwiching and adhering a hollow sheet having a large number of independent air pockets between a sound absorbing sheet and a sound insulating sheet. The sound of waves is attenuated by a hollow sheet and blocked by a sound insulating sheet.
(ホ)実施例
本発明の実施例を図面に基づいて説明すると、第1図は
防音シートの製造工程を示す略図、第2図は防音シート
の要部拡大断面図で、(1)は落綿、炭素繊維、合成繊
維等の断熱性のある吸音シート、(2)は再生ゴム、塩
化ビニール等からなる軟質の遮音シート、(3)はポリ
エチレン、塩化ビニール等からなる平形状のフィルム(
4)と凹凸形状のフィルム(5)とを接着もしくは熱溶
着等により一体に形成して独立した空気溜まり部(6)
を多数設けた軟質の中空シートである。(E) Example An example of the present invention will be explained based on the drawings. Figure 1 is a schematic diagram showing the manufacturing process of a soundproof sheet, Figure 2 is an enlarged cross-sectional view of the main part of the soundproof sheet, and (1) is a drop-down diagram. (2) is a soft sound-absorbing sheet made of recycled rubber, vinyl chloride, etc.; (3) is a flat film made of polyethylene, vinyl chloride, etc.
4) and the uneven film (5) are integrally formed by adhesive or heat welding to form an independent air pocket (6).
It is a soft hollow sheet with a large number of
而して、これらの各シート(t)(21(31は第1図
のように夫々ローラ(7)+8+(9)に巻きつけられ
ており、ローラ(9)から送り出される中空シート(3
)の両面001(l I)にスプレーカン(12)fl
21により再生ゴムやクロロプレンゴム等のゴム系接
着剤Q31(13)を塗布すると共にローラ(71(8
)から吸音シート(1)と遮音シート(2)とを夫々送
り出して加圧ローラ(11(14)間で圧着することに
より中空シート(3)を吸音シート(1)と遮音シート
(2)とで挾んだ一体の防音シート15)が成形されて
加圧ローラ(14)(+ 4i間から押し出され、ロー
ラθ6)に巻き取られる。Each of these sheets (t) (21 (31) is wound around rollers (7) + 8 + (9), respectively, as shown in Fig.
) Spray can (12) fl on both sides 001 (l I)
21, apply a rubber adhesive Q31 (13) such as recycled rubber or chloroprene rubber, and use a roller (71 (8)
) are sent out from the sound absorbing sheet (1) and the sound insulating sheet (2) respectively, and are pressed between the pressure rollers (11 (14)) to form the hollow sheet (3) into the sound absorbing sheet (1) and the sound insulating sheet (2). The integral soundproof sheet 15) sandwiched between the two is formed, extruded from between the pressure roller (14) (+4i), and wound around the roller θ6).
このようにして製造された防音シート(I51&′!、
第2図に示すように吸音シート(1)、独立した空気溜
まり部(6)を多数有する中漬シート(3)、遮音シー
ト(2)が順次積層された一体構造となって、且つ、軟
質性をもっており、圧縮機に巻きつける際は適当な大き
さに切って吸音ソート(1)側が圧縮機のケースと接す
るように巻いてバンドで締めつげるようにす牙1は、中
空シート(3)は吸音シート(1)で断熱さJlて圧縮
機から発せられろ熱の影響を受けることがないと共に圧
縮機から発生する騒音のうち高周波音は吸音ソート(1
)で吸収され、月つ低周波音は中空シート(3)の空気
溜まり部(6)で減衰されて最終的に遮音シート(2)
で遮断されるようになる。Soundproof sheets manufactured in this way (I51&'!,
As shown in Figure 2, the sound absorbing sheet (1), the pickled sheet (3) having a large number of independent air pockets (6), and the sound insulating sheet (2) are laminated in order to form an integrated structure. When wrapping it around the compressor, cut it to an appropriate size, wrap it so that the sound absorbing sort (1) side is in contact with the compressor case, and tighten it with a band.Fang 1 is a hollow sheet (3). is insulated with a sound-absorbing sheet (1) so that it is not affected by the heat emitted from the compressor, and high-frequency sounds of the noise generated from the compressor are removed by sound-absorbing sorting (1).
), and the low frequency sound is attenuated by the air pocket (6) of the hollow sheet (3) and finally passed through the sound insulation sheet (2).
It becomes blocked by .
因に、中空シート(3)による低周波音の減衰効果を確
認する為に、第1の実験例として吸音シート(1)と遮
音シート(2)とを直接、接着させて中空シート(3)
を設けない改良前の防音シートと、上述した本発明によ
る防音シートa5)とで騒音値95dBのブザーを囲み
、30cmgf#れた所で騒音の測定を行なった結果、
改良前の防音シートでは81.0 dBあったのに対し
、本発明による防音シー) (151では79.5dB
と騒音値が1.5dB下がることかわかった。Incidentally, in order to confirm the low-frequency sound attenuation effect of the hollow sheet (3), as a first experimental example, the sound-absorbing sheet (1) and the sound-insulating sheet (2) were directly adhered to form a hollow sheet (3).
A buzzer with a noise value of 95 dB was surrounded by a soundproof sheet before improvement without a soundproof sheet and a soundproof sheet a5) according to the present invention described above, and the noise was measured at a position of 30cmgf#.
While the soundproofing sheet before the improvement was 81.0 dB, the soundproofing sheet according to the present invention was 79.5dB.
It was found that the noise level decreased by 1.5 dB.
又、第2の実験例として吸音シート(1)のみからなる
従来の防音シートと、吸音シート(1)に中空シー1−
(3)のみを接着して遮音シート(2)のない改良前の
防音シートとで騒音値95 dBのブザーを囲み、30
cIrL離れた所で騒音の測定を行なった結果、中空シ
ート(3)がない前者では90.5dBあったのに対し
、中空シート(3)を有する後者では88.0dBと騒
音値が2.5dB下がることがわかった。In addition, as a second experimental example, we used a conventional soundproof sheet consisting of only the sound absorbing sheet (1) and a hollow sheet 1-
A buzzer with a noise value of 95 dB is surrounded by the sound insulation sheet (3) and the sound insulation sheet before improvement without the sound insulation sheet (2).
As a result of measuring the noise at a distance from cIrL, the former without the hollow sheet (3) had a noise value of 90.5 dB, while the latter with the hollow sheet (3) had a noise value of 88.0 dB, which was 2.5 dB. I found it to go down.
この第1、第2の実験例から中空シート(3)による騒
音の減衰効果が裏付けされると共に遮音シート(2)に
よる遮音効果が高いことも裏付けされた。The first and second experimental examples confirmed the noise damping effect of the hollow sheet (3) and also confirmed that the sound insulation sheet (2) had a high sound insulation effect.
尚、上述した製造工程時、中空シート(3)に加圧ロー
ラ(+4)Q4)Kより圧力がかかり過ぎて空気溜まり
部(6)内の空気圧か高くなると低周波音の減衰効果が
低下するようになる為、注意しなければならない。In addition, during the above-mentioned manufacturing process, if too much pressure is applied to the hollow sheet (3) by the pressure roller (+4) Q4)K and the air pressure in the air pocket (6) increases, the low-frequency sound damping effect will decrease. You must be careful because this will happen.
又、中空シート(3)の空気溜まり部(6)は圧縮機に
巻き付けた際、変形してフィルム(5)の四部Q7)と
遮音シート(2)とが、もしくはフィルム(5)の凸部
0榎と平形状のフィルム0υとが夫々極度に接近したり
接触すると低周波音の減衰効果が低下するようになる為
、接近もしくは接触し/、(い#度の大きさに小さく区
分するように配慮する必要がある。Also, when the air pocket (6) of the hollow sheet (3) is wrapped around a compressor, it deforms and the fourth part Q7) of the film (5) and the sound insulation sheet (2) or the convex part of the film (5) If the 0 and the flat film 0υ come extremely close to each other or come into contact with each other, the attenuation effect of low frequency sound will decrease. It is necessary to take into account.
又、中空シート(3)として凹凸形状のフィルム(5)
のみを用いても良いが、この場合、平形状のフィルム(
4)がない為に1個おきの空気溜まり部(6a)内に騒
音が通気性のある吸音シート(1)を透過して到達する
ので、この空気溜まり部(6a)では減衰されず、フィ
ルム(5)と通気性のない遮音シート(2)とで囲まれ
る1個おきの空気溜まり部(6b)で騒音を減衰させる
にとどまる為、両フィルム(41(5)を用いた上記実
施例と比較すると防音効果が低下することは避けられな
い。In addition, a film (5) with an uneven shape is used as a hollow sheet (3).
However, in this case, a flat film (
4), the noise passes through the breathable sound absorbing sheet (1) and reaches every other air pocket (6a), so it is not attenuated in this air pocket (6a) and the film (5) and the non-breathable sound insulation sheet (2) to attenuate the noise only at every other air pocket (6b). In comparison, it is inevitable that the soundproofing effect will be lower.
(へ)発明の効果
本発明は独立した空気溜まり部を多数有する中空シート
を吸音シートと遮音シートとで挾んで接着して防音シー
トを成形したので、高周波音を吸音シートで吸収できる
と共に低周波音を中空シートの空気溜まり部で減衰させ
て遮音シートで遮断させることができ、高い防音効果を
イ↓Iることができる。(f) Effects of the Invention The present invention forms a soundproof sheet by sandwiching and bonding a hollow sheet having a large number of independent air pockets between a sound absorbing sheet and a sound insulating sheet, so that high frequency sounds can be absorbed by the sound absorbing sheet and low frequency The sound of waves can be attenuated by the air pocket of the hollow sheet and blocked by the sound insulation sheet, resulting in a high sound insulation effect.
しかも吸音シートに断熱性と耐熱性のある繊維製のもの
を用いることにより、圧縮機に直接巻きつける防音シー
トとして最適であり、圧縮機に冷媒配管や冷凍機器部品
が振動時、に接触するほどに近接していても中をシート
の空気溜まり部がエアークツシリンとして働いて撮動の
伝達を和らげることができる。Furthermore, by using a sound-absorbing sheet made of fiber that has heat-insulating and heat-resistant properties, it is ideal as a sound-absorbing sheet that can be wrapped directly around the compressor. Even if the seat is close to the seat, the air pocket inside the seat acts as an air barrier to soften the transmission of the image.
図面は本発明の実施例を示すもので、第1図は防音シー
トの製造工程を示す略図、第2図は防音シートの要部拡
大断面図である。
<1)・・・吸音シート、 (2)・・・遮音シート、
(3)・・・中空シート、 (6) (6a ) (
6b )・・・空気溜まり部、Q5)・・・防音シート
。
出願人 三洋電機株式会社 外1名
代理人 弁理士 佐 野 靜 夫The drawings show an embodiment of the present invention, and FIG. 1 is a schematic diagram showing the manufacturing process of a soundproof sheet, and FIG. 2 is an enlarged sectional view of a main part of the soundproof sheet. <1)...Sound absorbing sheet, (2)...Sound insulating sheet,
(3)...Hollow sheet, (6) (6a) (
6b)...Air pocket, Q5)...Soundproof sheet. Applicant: Sanyo Electric Co., Ltd. and 1 other representative: Patent attorney: Shizuo Sano
Claims (1)
吸音シートと遮音シートとで挾んで接着してなる防音シ
ート。(1) A soundproof sheet made by sandwiching and bonding a hollow sheet with a number of independent air pockets between a sound absorbing sheet and a sound insulating sheet.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59093283A JPS60236736A (en) | 1984-05-09 | 1984-05-09 | Soundproof sheet |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59093283A JPS60236736A (en) | 1984-05-09 | 1984-05-09 | Soundproof sheet |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS60236736A true JPS60236736A (en) | 1985-11-25 |
Family
ID=14078094
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59093283A Pending JPS60236736A (en) | 1984-05-09 | 1984-05-09 | Soundproof sheet |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60236736A (en) |
-
1984
- 1984-05-09 JP JP59093283A patent/JPS60236736A/en active Pending
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