JP2002220009A5 - - Google Patents
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- JP2002220009A5 JP2002220009A5 JP2001014434A JP2001014434A JP2002220009A5 JP 2002220009 A5 JP2002220009 A5 JP 2002220009A5 JP 2001014434 A JP2001014434 A JP 2001014434A JP 2001014434 A JP2001014434 A JP 2001014434A JP 2002220009 A5 JP2002220009 A5 JP 2002220009A5
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- layer
- sound
- sound absorption
- thickness
- sound absorbing
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Description
ここで、表皮層の材質は、フェルト、PET(ポリエステル)繊維、紙類(パルプ等)等を繊維状にした繊維集合体からなり、面密度0.005〜0.3kg/m2未満で、表皮層の厚みは15mm以下であり、表皮層は吸音層より高密度に設定されている。 Here, the material of the skin layer is a fiber assembly in which felts, PET (polyester) fibers, papers (pulp etc.) are formed into fibers, and the surface density is less than 0.005 to 0.3 kg / m 2 , The thickness of the skin layer is 15 mm or less , and the skin layer is set to have a higher density than the sound absorption layer.
ここで、凹凸部1個につき、表皮層と吸音層との接着部の面積は0.5〜100cm2で空気層の面積は1〜100cm2、空気層の高さは1〜10mmである。 Here, the concave-convex portion for every one, the area of the bonding portion between the skin layer and the sound absorption layer is the area of the air layer in 0.5~100cm 2 1~100cm 2, the air layer height is 1 to 10 mm.
尚、凹凸部1個につき、フィルム層と吸音層との接着部の面積は0.5〜100cm2、空気層の面積は1〜100cm2、空気層の高さは1〜10mmが適している。 In addition, the area of the bonding part between the film layer and the sound absorbing layer is 0.5 to 100 cm 2 , the area of the air layer is 1 to 100 cm 2 , and the height of the air layer is suitably 1 to 10 mm for one uneven portion . .
ここで、発泡樹脂シート材としては、オレフィン系発泡シート、EPDM等が使用でき、面密度0.005〜0.3kg/m2未満で、厚みは15mm以下が良い。 Here, as a foamed resin sheet material, an olefin based foamed sheet, EPDM or the like can be used, and the area density is preferably less than 0.005 to 0.3 kg / m 2 and the thickness is 15 mm or less.
すなわち、インシュレータダッシュ20は、繊維集合体からなる吸音層21単層構成とした。この吸音層21は、その材質として、フェルト、PET(ポリエステル)繊維、紙類(パルプ等)等を繊維状にした繊維集合体からなり、熱可塑性樹脂、あるいは熱硬化性樹脂をバインダとしてダッシュパネル10の面形状に沿って成形され、吸音層21の厚みは5〜150mmで、その面密度は3.0kg/m2 以下に設定され、吸音層21の周波数域630〜4000Hzの平均吸音率が厚み20mm時で30〜90%に調整された材料を使用する。 That is, insulator dash 20 was made into single layer composition of sound absorption layer 21 which consists of a textiles aggregate. The sound absorbing layer 21 is composed of a fiber assembly in which felt, PET (polyester) fibers, papers (pulp, etc.) are formed into fibers as its material, and a dash panel is made using a thermoplastic resin or a thermosetting resin as a binder. The sound absorbing layer 21 has a thickness of 5 to 150 mm, an area density of 3.0 kg / m 2 or less, and an average sound absorption coefficient in the frequency range of 630 to 4000 Hz of the sound absorbing layer 21. Use a material adjusted to 30 to 90% at a thickness of 20 mm.
上記インシュレータダッシュ20の防音特性を図3のグラフで示すように、吸音層21単層によるインシュレータダッシュ20の吸音・遮音性能(a)は、インストルメントパネル40の遮音性能(b)、吸音層21による吸音・遮音性能(c)、インストルメントパネル40内の吸音性能(d)の総和であり、特に、中音域、高音域における周波数域レベルの騒音を有効に減衰できることがグラフから明かである。 As shown in the graph of FIG. 3 for the sound insulation characteristic of the insulator dash 20, the sound absorption and sound insulation performance (a) of the insulator dash 20 by the single sound absorption layer 21 is the sound insulation performance (b) of the instrument panel 40, the sound absorption layer 21. by absorbing, sound insulation performance (c), is the sum of the sound absorbing performance in the instrument panel 40 (d), in particular, can be effectively damped midrange, the noise of the frequency band level in the high frequency range is evident from the graph.
そして、吸音層21と表皮層22とからなるインシュレータダッシュ20の平均吸音率は、15〜95%になるように材料設定を行ない、その際、垂直入射吸音率630〜4000Hz平均とする。また、表皮層22の厚みは、15mm以下で、かつインシュレータダッシュ20の厚みは5〜150mmの間に設定する。 Then, the material setting is performed so that the average sound absorption coefficient of the insulator dash 20 composed of the sound absorption layer 21 and the skin layer 22 is 15 to 95%, and the vertical incident sound absorption coefficient is 630 to 4000 Hz average. The thickness of the skin layer 22 is set to 15 mm or less , and the thickness of the insulator dash 20 is set between 5 and 150 mm.
更に、吸音層21と吸音層22の成形工法としては、カードリングによりコンベア状に繊維素を散布してマット状に集積して、吸音層21の原反マットを作製した後、表皮層22の接合面にホットメルトパウダーを付着させて加熱処理を行ない、ホットメルトを溶融した状態で予めマット状に形成された表皮層22を積層してコールドプレス成形により一体化すれば良い。 Furthermore, as a forming method of the sound absorbing layer 21 and the sound absorbing layer 22, fibrous elements are dispersed in a conveyer shape by a card ring to be accumulated in a mat shape, and a raw fabric mat of the sound absorbing layer 21 is manufactured The hot melt powder may be attached to the bonding surface and heat treatment may be performed, and in a state where the hot melt is melted, the skin layer 22 previously formed in a mat shape may be laminated and integrated by cold press molding.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001014434A JP3701010B2 (en) | 2001-01-23 | 2001-01-23 | Insulator dash for automobile |
US10/464,665 US7080712B2 (en) | 2001-01-23 | 2002-01-22 | Soundproof material for vehicle and method of manufacturing the material |
PCT/JP2002/000403 WO2002059870A1 (en) | 2001-01-23 | 2002-01-22 | Soundproof material for vehicle and method of manufacturing the material |
EP02715859A EP1365388A4 (en) | 2001-01-23 | 2002-01-22 | Soundproof material for vehicle and method of manufacturing the material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2001014434A JP3701010B2 (en) | 2001-01-23 | 2001-01-23 | Insulator dash for automobile |
Publications (3)
Publication Number | Publication Date |
---|---|
JP2002220009A JP2002220009A (en) | 2002-08-06 |
JP2002220009A5 true JP2002220009A5 (en) | 2005-04-07 |
JP3701010B2 JP3701010B2 (en) | 2005-09-28 |
Family
ID=18881132
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2001014434A Expired - Fee Related JP3701010B2 (en) | 2001-01-23 | 2001-01-23 | Insulator dash for automobile |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3701010B2 (en) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3498085B1 (en) * | 2003-03-26 | 2004-02-16 | 株式会社タケヒロ | Ultralight soundproof material |
US8158246B2 (en) | 2003-03-26 | 2012-04-17 | Takehiro Co., Ltd. | Ultralight soundproof material |
JP2005075012A (en) * | 2003-08-29 | 2005-03-24 | Kasai Kogyo Co Ltd | Sound insulating material for vehicle |
DE202004009726U1 (en) * | 2004-06-21 | 2005-11-10 | Carcoustics Tech Center Gmbh | Sound-absorbing, self-supporting end wall paneling for motor vehicles |
KR100562580B1 (en) | 2004-12-17 | 2006-03-22 | 현대모비스 주식회사 | Structure for absorbing noise of instrument |
DE102006018465A1 (en) * | 2006-04-19 | 2007-10-25 | Carcoustics Tech Center Gmbh | Sound-insulating component for motor vehicles and method for its production |
WO2010007834A1 (en) * | 2008-07-17 | 2010-01-21 | トヨタ自動車株式会社 | Impact and sound absorbing material and sound absorbing structure |
JP7052403B2 (en) * | 2018-02-21 | 2022-04-12 | トヨタ自動車株式会社 | vehicle |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51112018A (en) * | 1975-03-28 | 1976-10-04 | Asahi Chem Ind Co Ltd | Laminated interior material |
JPS6138250U (en) * | 1984-08-15 | 1986-03-10 | 河西工業株式会社 | Automotive insulator dash |
JP3632876B2 (en) * | 1997-01-27 | 2005-03-23 | 日産自動車株式会社 | Sound insulation structure |
JP3367637B2 (en) * | 1997-10-16 | 2003-01-14 | 日産自動車株式会社 | Sound insulation structure in the car interior |
JPH11202873A (en) * | 1998-01-19 | 1999-07-30 | Nissan Motor Co Ltd | Sound insulator |
-
2001
- 2001-01-23 JP JP2001014434A patent/JP3701010B2/en not_active Expired - Fee Related
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