JPH06336144A - Integrally moldable soundproof material - Google Patents
Integrally moldable soundproof materialInfo
- Publication number
- JPH06336144A JPH06336144A JP5148263A JP14826393A JPH06336144A JP H06336144 A JPH06336144 A JP H06336144A JP 5148263 A JP5148263 A JP 5148263A JP 14826393 A JP14826393 A JP 14826393A JP H06336144 A JPH06336144 A JP H06336144A
- Authority
- JP
- Japan
- Prior art keywords
- cover
- sound absorbing
- absorbing layer
- soundproof
- felt
- 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.)
- Granted
Links
Landscapes
- Laminated Bodies (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は自動車エンジンルーム内
に使用するカバーと吸音層が一体となった防音材に関
し、該カバーと吸音層とを一体として成形可能となすこ
とにより、予めカバー材料と吸音層材料を別々に成形し
た後、改めて一体化するという煩雑な工程を削減した一
体成形可能な防音材に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a soundproof material which is used in an automobile engine room and in which a cover and a sound absorbing layer are integrated with each other. The present invention relates to a soundproof material that can be integrally molded by reducing the complicated process of molding the sound absorbing layer materials separately and then integrating them again.
【０００２】[0002]
【従来の技術】従来より、自動車エンジンルーム内に使
用するカバーと吸音層が一体となった防音材は、鋼板等
の金属板を成形加工してカバーとなしたものや、プラス
チックを成形して所望形状となしたものと、同じく成形
加工した吸音材を吸音材の端部等の位置で、クリップ、
ボルト等の留め具で物理的に一体化するという工程を経
て自動車エンジンルーム内に使用するカバーを有する防
音材となしていたが、部品点数の増加、工程の増加にな
り、作業性に劣るという不具合があった。2. Description of the Related Art Conventionally, a soundproof material which is used in an automobile engine room and which has a sound absorbing layer integrated with a cover is formed by molding a metal plate such as a steel plate to form a cover, or by molding a plastic. Clip the sound absorbing material that has the desired shape and the sound absorbing material that has been similarly molded at the position of the end of the sound absorbing material,
Although it was a soundproof material with a cover to be used in the automobile engine room through the process of physically integrating with fasteners such as bolts, it was said that the workability was poor due to the increase in the number of parts and the number of processes. There was a problem.
【０００３】即ち、カバーの成形形状に吸音材の形状を
合わせて成形し、留め具等で一体となしていたが、非常
に煩雑で製造作業性に劣ったものであった。That is, although the shape of the sound absorbing material was formed in conformity with the shape of the cover and integrated with a fastener or the like, it was very complicated and the workability was poor.
【０００４】[0004]
【発明が解決しようとする課題】そこで、本発明の課題
は、カバー自体の材質を従来の金属から吸音材と一体し
て成形可能な材質となし、併せて、吸音性能に優れる吸
音層材料とともに一体成形をなすことによりカバー材料
と吸音層材料とを別々に成形加工せしめるという煩雑な
工程を低減せしめ、満足な吸音性能をも発揮し、エンジ
ンルーム内の騒音を効果的に吸音するという、優れた防
音効果をも実現する点にあるものである。SUMMARY OF THE INVENTION Therefore, an object of the present invention is to make the material of the cover itself a material that can be integrally molded with a sound absorbing material from a conventional metal, and also to provide a sound absorbing layer material having excellent sound absorbing performance. By integrally molding, the complicated process of separately molding the cover material and the sound absorbing layer material is reduced, satisfactory sound absorption performance is also exhibited, and noise in the engine room is effectively absorbed. The soundproof effect is also realized.
【０００５】[0005]
【課題を解決するための手段】かかる課題を解決せんと
して、本発明者らは鋭意研究の結果、カバーと吸音材の
材質を検討し、一体して成形可能な防音材となすことを
知見したものであり、本発明の要旨は以下に存する。[Means for Solving the Problems] In order to solve the above problems, the inventors of the present invention have made earnest studies and, as a result, studied the materials of the cover and the sound absorbing material, and found that the sound absorbing material can be integrally formed. The gist of the present invention is as follows.
【０００６】自動車エンジンルーム内に使用するカバー
を有する防音材であって、発泡性熱硬化性樹脂を含浸又
は塗布した繊維製基材からなるカバー材料とフェルトか
らなる吸音層材料を加熱加圧一体成形と同時にカバー材
料中の発泡性熱硬化性樹脂を発泡せしめてなることを特
徴とする一体成形可能な防音材。A soundproof material having a cover for use in an automobile engine room, in which a cover material made of a fibrous base material impregnated with or coated with a foamable thermosetting resin and a sound absorbing layer material made of felt are integrated under heating and pressure. A soundproof material that can be integrally molded, characterized in that the foamable thermosetting resin in the cover material is foamed simultaneously with molding.
【０００７】自動車エンジンルーム内に使用するカバー
を有する防音材であって、ＦＲＰ又はＳＭＣからなるカ
バー材料とフェルトからなる吸音層材料を一体成形して
なることを特徴とする一体成形可能な防音材。A soundproof material having a cover for use in an automobile engine room, characterized in that a cover material made of FRP or SMC and a sound absorbing layer material made of felt are integrally molded, and the soundproof material is integrally moldable. .
【０００８】自動車エンジンルーム内に使用するカバー
を有する防音材であって、カバー材料と吸音層材料の間
に接着剤又はフィルムを介してなることを特徴とする一
体成形可能な防音材。A soundproof material having a cover for use in an automobile engine room, characterized in that an adhesive or a film is interposed between the cover material and the sound absorbing layer material, which is an integrally moldable soundproof material.
【０００９】本発明の必須の構成要件であるカバーと
は、遮音性能を付加しつつ、吸音層の吸音性能を低下す
る外因からの保護材である。材料自体は吸音層材料と一
体成形が可能であり、かつ所望の性能を有すれば特に限
定されることなく、発泡性熱硬化性樹脂を含浸又は塗布
したガラス繊維等の繊維材、ＦＲＰ、ＳＭＣ又はプラス
チック、歴青質物、ゴム、樹脂及び成形可能なフォーム
材等を成形加工してなすものである。The cover, which is an indispensable constituent feature of the present invention, is a protective material from the external cause that deteriorates the sound absorbing performance of the sound absorbing layer while adding the sound insulating performance. The material itself is not particularly limited as long as it can be integrally molded with the sound absorbing layer material and has a desired performance, and a fiber material such as glass fiber impregnated with or coated with a foamable thermosetting resin, FRP, SMC. Alternatively, it is formed by molding plastic, bituminous material, rubber, resin and moldable foam material.
【００１０】吸音層としては、動物性、植物性、合成樹
脂性の不連続繊維材料の一種もしくは二種以上と熱硬化
性樹脂等の結合剤を主体としてなる嵩高性不織布やポリ
スチレン、ポリプロピレン、ポリウレタン等のフォーム
材、またはフェルトやガラスウール、ガラス繊維等を成
形加工してなすものである。As the sound absorbing layer, a bulky non-woven fabric mainly composed of one or more discontinuous fiber materials of animal, vegetable or synthetic resin and a binder such as thermosetting resin, polystyrene, polypropylene or polyurethane. And the like, or felt, glass wool, glass fiber, etc. are molded and processed.
【００１１】かかるカバーと吸音層とを成形一体化した
防音材となさんとすれば、発泡性フェノール樹脂を含浸
した５〜１０ｍｍ程度の厚みのガラス繊維材料からなる
カバー材料と１０〜３０ｍｍ程度の厚みのフェルトから
なる吸音層材料を加熱加圧一体成形と同時にカバー材料
中の発泡性フェノール樹脂を発泡硬化せしめてなる方法
がある。As a soundproof material in which the cover and the sound absorbing layer are integrally molded, a cover material made of a glass fiber material having a thickness of about 5 to 10 mm impregnated with a foamable phenol resin and a material having a thickness of about 10 to 30 mm are used. There is a method in which a sound absorbing layer material made of a thick felt is integrally molded by heating and pressurization and at the same time, a foamable phenol resin in a cover material is foamed and cured.
【００１２】また、平物のＦＲＰ又はＳＭＣからなるカ
バー材料と１０〜３０ｍｍ程度の厚みのフェルトからな
る吸音層材料を加熱加圧成形、同時一体化してなる方法
がある。その際、発泡ＳＭＣを使用して、加熱加圧成形
時に発泡せしめることは好ましく推奨される。There is also a method in which a flat cover material made of FRP or SMC and a sound absorbing layer material made of felt having a thickness of about 10 to 30 mm are heat-pressed and simultaneously integrated. At this time, it is preferable to use foamed SMC to cause foaming during heat and pressure molding.
【００１３】更に、５〜２０ｍｍ程度の厚みのフェルト
からなるカバー材料、ポリエチレンフィルム及び１０〜
３０ｍｍ程度の厚みのフェルトからなる吸音層材料を順
次下金型上に積層後、上金型を加工し、加熱加圧成形し
つつ、下金型下部より真空吸引し、一体化してなる方法
も推奨できる。かかる方法によれば、全く同じフェルト
を使用してカバーとせしめ、また吸音層とせしめるべく
成形加工することが可能となる。この場合、成形後のカ
バーは吸音層と比べ、密度が大きく、剛性を付与せしめ
ることとなる。Further, a cover material made of felt having a thickness of about 5 to 20 mm, a polyethylene film, and 10 to 10
A method is also possible in which sound absorbing layer materials made of felt with a thickness of about 30 mm are sequentially laminated on the lower mold, and then the upper mold is processed and heated and pressed while vacuum suction is performed from the lower part of the lower mold. Can be recommended. According to such a method, it is possible to form the cover using exactly the same felt and to perform the molding process so as to form the sound absorbing layer. In this case, the molded cover has a higher density than the sound absorbing layer and provides rigidity.
【００１４】カバー材料として、フェルトを使用する場
合は、化学繊維、綿の使用量を繊維全体の２５重量％以
下となすことにより、一層の剛性を付与することが可能
となる。When felt is used as the cover material, further rigidity can be imparted by using chemical fibers and cotton in an amount of 25% by weight or less based on the total amount of the fibers.
【００１５】フォーム材は、カバー材料としても吸音層
材料としても使用が可能であるが、加熱加圧成形もしく
は、加圧成形が可能であるものを使用する必要がある。
かかるフォーム材の使用により、本発明の特徴であるカ
バーと吸音層を同時に一体成形なしうるのである。The foam material can be used both as a cover material and a sound absorbing layer material, but it is necessary to use a foam material that can be heat-pressed or pressure-molded.
By using such a foam material, the cover and the sound absorbing layer, which are the features of the present invention, can be integrally formed at the same time.
【００１６】カバー材料と吸音層材料の間は、特に予め
接着剤を塗布することなく加熱加圧成形するのみでも一
体化は可能であるが、点接着により部分的に接着するこ
とは膜振動による吸音性能の向上が見られるかぎり、接
着、一体化をより強固とするものでもあり好ましいこと
である。また、真空成形のためカバー材料と吸音層材料
の間に使用するフィルムも加熱加圧成形時に一部が溶融
して、接着剤としての効果を有する場合がある。The cover material and the sound absorbing layer material can be integrated with each other only by heating and pressure molding without applying an adhesive in advance, but partial adhesion by point adhesion is caused by membrane vibration. As long as the sound absorbing performance can be improved, it is preferable because it can strengthen the adhesion and integration. Further, the film used between the cover material and the sound absorbing layer material for vacuum forming may partially melt during the heat and pressure forming, and may have an effect as an adhesive.
【００１７】構成材料の面密度は、カバーは５０〜１５
００ｇ／ｍ2 、吸音層は２００〜１５００ｇ／ｍ2 程度
である。The areal density of the constituent materials is 50 to 15 for the cover.
00 g / m 2 , and the sound absorbing layer is about 200 to 1500 g / m 2 .
【００１８】[0018]
【実施例】以下に実施例を挙げ本発明のより詳細な理解
に供する。当然のことながら本発明は以下の実施例のみ
に限定されるものではない。EXAMPLES The following examples are provided for a more detailed understanding of the present invention. Naturally, the invention is not limited to the following examples.
【００１９】[0019]
【実施例１】発泡性フェノール樹脂を塗布したガラス繊
維からなるカバー材料と落綿、雑反毛を原材料とするフ
ェルトからなる吸音層材料を順次２００℃の下金型上に
載置し、１０kg/m2 の圧力で上金型を下降せしめ、１分
間加熱加圧成形をし、カバー材料中の発泡性フェノール
樹脂を発泡せしめると同時に、カバーと吸音層とを一体
成形せしめた。Example 1 A cover material made of glass fiber coated with a foamable phenolic resin, a cotton wool, and a sound absorbing layer material made of felt made of fluff as a raw material were successively placed on a lower mold at 200 ° C. and 10 kg. The upper mold was lowered with a pressure of / m 2 and heat and pressure molding was performed for 1 minute to foam the foamable phenol resin in the cover material, and at the same time, the cover and the sound absorbing layer were integrally molded.
【００２０】[0020]
【実施例２】平物のＦＲＰからなるカバー材料とウレタ
ンフォーム材からなる吸音層材料を順次１５０℃の下金
型上に載置し、１０kg/m2 の圧力で上金型を下降せし
め、１分間加熱加圧成形をし、カバーと吸音層とを一体
成形せしめた。Example 2 A flat cover material made of FRP and a sound absorbing layer material made of urethane foam material were sequentially placed on a lower mold at 150 ° C., and the upper mold was lowered at a pressure of 10 kg / m 2 . After heat and pressure molding for 1 minute, the cover and the sound absorbing layer were integrally molded.
【００２１】[0021]
【実施例３】ガラス繊維からなるカバー材料、ポリプロ
ピレンフィルム及び落綿、雑反毛を原材料とするフェル
トからなる吸音層材料を順次２００℃の下金型上に載置
し、１０kg/m2 の圧力で上金型を下降せしめ、１分間加
熱加圧成形をし、ポリプロピレンフィルムを介してカバ
ーと吸音層とを一体成形せしめた。[Example 3] A cover material made of glass fiber, a polypropylene film, a cotton wool, and a sound absorbing layer material made of felt, which is made of fluff, were placed on a lower mold at 200 ° C in sequence, and 10 kg / m 2 The upper mold was lowered by pressure, heat and pressure molding was performed for 1 minute, and the cover and the sound absorbing layer were integrally molded via a polypropylene film.
【００２２】[0022]
【発明の効果】本発明によれば、自動車エンジンルーム
内に使用するカバーを有する防音材はそのカバーと吸音
層とを同時に成形して一体となしうることが明らかとな
った。According to the present invention, it has been clarified that a soundproof material having a cover to be used in an automobile engine room can be integrally formed by simultaneously molding the cover and the sound absorbing layer.
Claims (3)
ーを有する防音材であって、発泡性熱硬化性樹脂を含浸
又は塗布した繊維製基材からなるカバー材料とフェルト
からなる吸音層材料を加熱加圧一体成形と同時にカバー
材料中の発泡性熱硬化性樹脂を発泡せしめてなることを
特徴とする一体成形可能な防音材。1. A soundproof material having a cover for use in an automobile engine room, wherein a cover material made of a fibrous base material impregnated or coated with a foamable thermosetting resin and a sound absorbing layer material made of felt are heated. An integrally moldable soundproofing material, characterized in that the foamable thermosetting resin in the cover material is foamed simultaneously with pressure integral molding.
ーを有する防音材であって、ＦＲＰ又はＳＭＣからなる
カバー材料とフェルトからなる吸音層材料を一体成形し
てなることを特徴とする一体成形可能な防音材。2. A soundproof material having a cover for use in an automobile engine room, characterized in that a cover material made of FRP or SMC and a sound absorbing layer material made of felt are integrally molded. Soundproof material.
ーを有する防音材であって、カバー材料と吸音層材料の
間に接着剤又はフィルムを介してなることを特徴とする
一体成形可能な防音材。3. A soundproof material having a cover for use in an automobile engine room, characterized in that an adhesive or a film is interposed between the cover material and the sound absorbing layer material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14826393A JP3188555B2 (en) | 1993-05-28 | 1993-05-28 | Soundproofing material that can be integrally molded |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14826393A JP3188555B2 (en) | 1993-05-28 | 1993-05-28 | Soundproofing material that can be integrally molded |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06336144A true JPH06336144A (en) | 1994-12-06 |
| JP3188555B2 JP3188555B2 (en) | 2001-07-16 |
Family
ID=15448866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14826393A Expired - Fee Related JP3188555B2 (en) | 1993-05-28 | 1993-05-28 | Soundproofing material that can be integrally molded |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3188555B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09174724A (en) * | 1995-12-26 | 1997-07-08 | Bridgestone Corp | Soundproof cover |
| JP2006071959A (en) * | 2004-09-02 | 2006-03-16 | Inoac Corp | Acoustic material and method for manufacturing same |
| JP2006078709A (en) * | 2004-09-09 | 2006-03-23 | Inoac Corp | Sound absorber |
| KR101375442B1 (en) * | 2013-11-26 | 2014-03-17 | 후성산업 주식회사 | Sound absorbing member for engine cover and making method thereof |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101664667B1 (en) | 2015-03-10 | 2016-10-12 | 현대자동차주식회사 | Output terminal with improved emc feature |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS583854A (en) * | 1981-07-01 | 1983-01-10 | 日本特殊塗料株式会社 | Light molding sound insulating material for car and its manufacture |
| JPH0550545A (en) * | 1991-08-22 | 1993-03-02 | Nippon Muki Co Ltd | Sound-absorbing heat insulator |
-
1993
- 1993-05-28 JP JP14826393A patent/JP3188555B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS583854A (en) * | 1981-07-01 | 1983-01-10 | 日本特殊塗料株式会社 | Light molding sound insulating material for car and its manufacture |
| JPH0550545A (en) * | 1991-08-22 | 1993-03-02 | Nippon Muki Co Ltd | Sound-absorbing heat insulator |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09174724A (en) * | 1995-12-26 | 1997-07-08 | Bridgestone Corp | Soundproof cover |
| JP2006071959A (en) * | 2004-09-02 | 2006-03-16 | Inoac Corp | Acoustic material and method for manufacturing same |
| JP4722436B2 (en) * | 2004-09-02 | 2011-07-13 | 株式会社イノアックコーポレーション | Sound absorbing material and manufacturing method thereof |
| JP2006078709A (en) * | 2004-09-09 | 2006-03-23 | Inoac Corp | Sound absorber |
| KR101375442B1 (en) * | 2013-11-26 | 2014-03-17 | 후성산업 주식회사 | Sound absorbing member for engine cover and making method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3188555B2 (en) | 2001-07-16 |
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