JP2579558B2 - Automotive sound insulation - Google Patents
Automotive sound insulationInfo
- Publication number
- JP2579558B2 JP2579558B2 JP2299765A JP29976590A JP2579558B2 JP 2579558 B2 JP2579558 B2 JP 2579558B2 JP 2299765 A JP2299765 A JP 2299765A JP 29976590 A JP29976590 A JP 29976590A JP 2579558 B2 JP2579558 B2 JP 2579558B2
- Authority
- JP
- Japan
- Prior art keywords
- parts
- hole
- insulating material
- sound insulating
- soundproofing
- 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 - Lifetime
Links
- 238000009413 insulation Methods 0.000 title 1
- 239000000463 material Substances 0.000 claims description 27
- 239000011810 insulating material Substances 0.000 claims description 22
- 230000000149 penetrating effect Effects 0.000 claims description 14
- 239000011347 resin Substances 0.000 claims description 14
- 229920005989 resin Polymers 0.000 claims description 14
- 239000011358 absorbing material Substances 0.000 claims description 10
- 239000012774 insulation material Substances 0.000 description 7
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 239000010426 asphalt Substances 0.000 description 3
- 229920005549 butyl rubber Polymers 0.000 description 3
- 229910000019 calcium carbonate Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229920002635 polyurethane Polymers 0.000 description 3
- 239000004814 polyurethane Substances 0.000 description 3
- 239000000454 talc Substances 0.000 description 3
- 229910052623 talc Inorganic materials 0.000 description 3
- 229920000742 Cotton Polymers 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 239000006261 foam material Substances 0.000 description 2
- 230000009477 glass transition Effects 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 229920000636 poly(norbornene) polymer Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000011550 stock solution Substances 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 235000013311 vegetables Nutrition 0.000 description 1
Landscapes
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
- Insulating Bodies (AREA)
- Installation Of Indoor Wiring (AREA)
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、エンジンルームからの騒音を防止する自動
車用防音材に関し、特には、ワイヤー、ケーブル、ステ
アリングシャフト、ペダルシャフト等の防音材を貫通す
る部品のために必要不可欠として設ける防音材の孔部か
らエンジンルーム内の騒音が車室内に侵入する事を防止
する自動車用防音材に関する。Description: TECHNICAL FIELD The present invention relates to a soundproofing material for automobiles for preventing noise from an engine room, and more particularly, to a soundproofing material such as a wire, a cable, a steering shaft, and a pedal shaft. The present invention relates to a soundproofing material for automobiles that prevents noise in an engine room from entering a vehicle interior from a hole of a soundproofing material provided as an indispensable part for a vehicle.
（従来の技術） 従来よりエンジンルームで発生する騒音を防止するた
めにダッシュ部に遮音材と吸音材からなる防音材が装着
されていた。(Prior Art) Conventionally, in order to prevent noise generated in an engine room, a sound insulating material including a sound insulating material and a sound absorbing material has been mounted on a dash portion.
しかし、吸音性能、遮音性能の両方の性能を兼ね備え
る該防音材も、ステアリングシャフト、ペダルシャフト
等の防音材を貫通する棒状部品や、ワイヤー、ケーブル
及び配線等のために車両構造上やむを得ず設ける防音材
孔部から、車両走行時にエンジンルームで発生した騒音
が透過して車室内へ侵入し、防音性能を十分に発揮する
ことができないという欠点が存した。However, the soundproofing material having both the sound absorbing performance and the sound insulating performance is also inevitably provided in the vehicle structure for a rod-shaped part penetrating the soundproofing material such as a steering shaft, a pedal shaft, and the like, and a wire, a cable and a wiring. There is a disadvantage that noise generated in the engine room during traveling of the vehicle penetrates through the hole and penetrates into the vehicle interior, so that the soundproof performance cannot be sufficiently exhibited.
エンジンルームからの騒音侵入を防止するために、ワ
イヤー等の径より小さい遮音材孔部にスリットを入れ、
配線後、ワイヤー等に遮音材をフィットさせようとした
技術（実開昭59−98499号他）や、遮音材孔部をテーパ
形状とした技術（実開昭56−70482号他）等が提案され
ている。しかしながらこれらの防音材では、スリットか
らの騒音の侵入や、ワイヤー、ケーブル類と、孔部がフ
ィットしきれず、エンジンルームで発生する騒音の車室
内への侵入を満足に防止する効果は得られなかった。To prevent noise from entering the engine room, make a slit in the sound insulation material hole smaller than the diameter of the wire, etc.
After wiring, a technique to fit a sound insulating material to a wire, etc. (No. 59-98499, etc.) and a technique to taper the sound insulating material hole (No. 56-70482, etc.) are proposed. Have been. However, with these soundproofing materials, the effect of preventing intrusion of noise from the slits, wires and cables, and holes cannot be completely fitted, and noise generated in the engine room cannot be sufficiently prevented from entering the vehicle interior. Was.
（発明が解決しようとする課題） 即ち、従来の提案では、配線後、孔部の形状を変化さ
せることにより、ワイヤー、ケーブル等の配線にフィッ
トさせようとする試みは全くなされておらず、エンジン
ルーム内で発生する騒音の車室内への侵入を満足に防止
する防音材の出現が要望されている。(Problems to be Solved by the Invention) That is, in the conventional proposal, no attempt has been made to change the shape of the hole after the wiring so as to fit the wiring such as a wire or a cable. There is a demand for a soundproofing material that satisfactorily prevents the noise generated in the room from entering the vehicle interior.
（課題を解決するための手段） かかる現状に鑑み鋭意研究の結果、本発明者らは、遮
音材に形状記憶樹脂を配合し、温度変化により遮音材の
孔部位置が所望の形状に変化するように設計することに
より、従来種々試みられたが解決し得なかった孔部から
侵入するエンジンルーム内騒音を満足に防止する防音材
を自動車ダッシュ部に装着することにより初めて、車室
内への騒音侵入の防止を顕現し得ることを見いだし本発
明に至ったものであり、 而して、本発明の要旨は、 遮音材と吸音材（２）からなる防音材において、形状
記憶樹脂を配合した遮音材（１）の孔部を、防音材を貫
通するワイヤー（４）ケーブル等の部品等の径と、温度
変化後にほぼ同じ径の孔部を形成するような形状記憶状
態を設計してなることを特徴とする自動車用防音材。(Means for Solving the Problems) In view of the present situation, as a result of earnest study, the present inventors have blended a shape memory resin into the sound insulating material and changed the hole position of the sound insulating material to a desired shape due to a temperature change. For the first time, installing noise-proofing materials in the vehicle dash that satisfactorily prevents noise in the engine room from entering through holes that have been tried in various ways, but could not be The present invention has been found to prevent intrusion and has led to the present invention. Accordingly, the gist of the present invention is to provide a sound insulating material comprising a sound insulating material and a sound absorbing material (2), in which a shape memory resin is blended. The hole of the material (1) is designed to have such a shape memory state that a hole having substantially the same diameter as the diameter of a part such as a wire (4) cable penetrating through the soundproofing material is formed after a temperature change. Automotive soundproofing characterized by .
に存する。Exists.
防音材を構成する遮音材は、形状記憶樹脂を必須成分
とし、その他ゴム系、樹脂系、瀝青質系もしくはこれら
を混合した成分をバインダー成分とし、他の成分として
充填材を含有したものを混練し、シート状に圧延、成形
したものである。例えば加熱溶融したゴム等の１種以上
と充填材を加熱混練機にて混合し、押出した後圧延する
工程により製造される。The sound insulation material that constitutes the sound insulation material is a kneading material containing a shape memory resin as an essential component, a rubber-based, resin-based, bituminous-based or a mixture thereof as a binder component, and a filler-containing material as another component. And rolled and formed into a sheet. For example, it is manufactured by a process in which one or more kinds of rubber and the like melted by heating and a filler are mixed by a heating kneader, extruded, and then rolled.
必須成分である形状記憶樹脂は、ポリ塩化ビニル、ポ
リイソプレン、ポリスチレン−ブタジエン共重合体、ポ
リメタクリル酸メチル、ポリカーボネート、ポリノルボ
ルネン、ポリウレタン、AB樹脂等が推奨できる。As the shape memory resin which is an essential component, polyvinyl chloride, polyisoprene, polystyrene-butadiene copolymer, polymethyl methacrylate, polycarbonate, polynorbornene, polyurethane, AB resin and the like can be recommended.
圧延した遮音材は、ガラス転移温度（Tg点）を超える
温度でワイヤー等にフィットする孔部の形状に成形し、
その形状を記憶させ、その後ガラス転移温度未満の温度
においてワイヤー等が十分配線できる大きさの孔に変形
したものである。Rolled sound insulation material is molded into a hole shape that fits wires etc. at a temperature exceeding the glass transition temperature (Tg point),
The shape is memorized, and after that, at a temperature lower than the glass transition temperature, the wire or the like is deformed into a hole large enough to be laid.
また、吸音材は、動物性、植物性、鉱物性の不連続繊
維材料の１種または２種以上と結合剤とからなる嵩高性
不織布、レジンフェルト、グラスウール、又はニードル
フェルト等もしくは、ポリウレタン、ポリスチレン、ポ
リオレフィン系のフォーム材が挙げられる。The sound absorbing material is a bulky nonwoven fabric, resin felt, glass wool, needle felt, or the like made of one or more of animal, vegetable, or mineral discontinuous fiber materials and a binder, or polyurethane, polystyrene, or the like. And polyolefin foam materials.
防音材は、下金型上の遮音材に吸音材を載置し、その
まま上型を下ろし加熱加圧成形したり、予め加熱加圧成
形した遮音材上に吸音材として使用するフォーム材の原
液を金型に注入後、発泡せしめる方法を採用しても良
い。The soundproofing material is a stock solution of foam material that is placed on the soundproofing material on the lower mold, and then the upper mold is directly lowered and heated and pressed, or used as a sound absorbing material on the previously heated and pressed soundproofing material. After injection into a mold, a method of foaming may be adopted.
（実施例） 以下に実施例を挙げて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 to provide a more detailed understanding of the present invention. As a matter of course, the present invention is not limited only to the following examples.
実施例１ ブチルゴム20重量部、ストレート／ブロン混合アスフ
ァルト５重量部、ポリ塩化ビニルよりなり、Tg点が60℃
である形状記憶樹脂15重量部、炭酸カルシウム50重量部
及びタルク10重量部を混練し、1mm厚に押出し成形し、
遮音材となした。吸音材としては、反毛60重量部、落綿
10重量部、合成繊維５重量部、フェノール樹脂粉末25重
量部よりなるフリースを形成し、140℃で加熱炉に導入
し、厚さ15mm、綿密度600g/m2の嵩高性不織布を得た。Example 1 20 parts by weight of butyl rubber, 5 parts by weight of straight / bron mixed asphalt, made of polyvinyl chloride, and having a Tg point of 60 ° C.
15 parts by weight of shape memory resin, 50 parts by weight of calcium carbonate and 10 parts by weight of talc are kneaded and extruded to a thickness of 1 mm,
Made sound insulation material. 60% by weight of anti-hair, cotton wool
A fleece comprising 10 parts by weight, 5 parts by weight of synthetic fiber and 25 parts by weight of phenol resin powder was formed and introduced into a heating furnace at 140 ° C. to obtain a bulky nonwoven fabric having a thickness of 15 mm and a cotton density of 600 g / m 2 .
遮音材を、自動車ダッシュ部の貫通部品及びワイヤー
ハーネスにすきまなくフィットする形状に成形し、30℃
の状態で、上記貫通部品を通す作業をする上で効率を良
くするために充分な大きさに孔の径を広げた変形を行な
い吸音材と一体化後、冷金型に載置し、約１分間加圧成
形し、自動車ダッシュ部用防音材となした。The sound insulation material is molded into a shape that fits tightly into the through parts and wire harness of the car dash,
In the state of above, after performing the deformation by expanding the diameter of the hole to a size large enough to improve the efficiency in passing the above penetrating parts and integrating with the sound absorbing material, place it in the cold mold, It was pressed for 1 minute to obtain a soundproofing material for a car dash.
該自動車ダッシュ部用防音材を自動車組立ラインにて
自動車に取付けた後、各種の貫通部品を取付、自動車が
完成した後、エンジンを運転させた時に発生した熱によ
り、遮音材は60℃以上の温度となり、孔部の形状が復元
して貫通部品にフィットした。After installing the soundproofing material for the car dash part on the car on the car assembly line, mounting various penetrating parts, after the car is completed, the heat generated when the engine was operated, the soundproofing material was 60 ° C or more. The temperature reached, and the shape of the hole was restored to fit the penetrating part.
実施例２ ブチルゴム20重量部、ストレート／ブロン混合アスフ
ァルト５重量部、ポリノルボルネンよりなり、Tg点が55
℃である形状記憶樹脂15重量部、炭酸カルシウム50重量
部及びタルク10重量部を混練し、1mm厚に押出し成形
し、遮音材となした。かかる遮音材を自動車ダッシュ部
の貫通部品及びワイヤーハーネスにすきまなくフィット
する形状に成形し、30℃の状態で、上記貫通部品を通す
作業をする上で効率を良くするために充分な大きさに孔
の径を広げた変形を行ない、実施例１と同様の吸音材と
一体化し、冷金型に載置し、約１分間加圧成形し、自動
車ダッシュ部用防音材となした。Example 2 20 parts by weight of butyl rubber, 5 parts by weight of straight / bron mixed asphalt, made of polynorbornene, and having a Tg point of 55
C., 15 parts by weight of a shape memory resin, 50 parts by weight of calcium carbonate, and 10 parts by weight of talc were kneaded and extruded to a thickness of 1 mm to form a sound insulating material. Such a sound insulating material is molded into a shape that fits tightly into the penetrating parts and the wire harness of the automobile dash part, and at a temperature of 30 ° C., has a sufficient size to improve the efficiency of passing the penetrating parts. The hole was deformed to have a larger diameter, integrated with the same sound-absorbing material as in Example 1, placed on a cold mold, and pressed under pressure for about 1 minute to obtain a sound-insulating material for an automobile dash.
該自動車ダッシュ部用防音材を自動車組立ラインにて
自動車に取付けた後、各種の貫通部品を取付、自動車が
完成した後、エンジンを運転させた時に発生した熱によ
り、遮音材は55℃以上の温度となり、孔部の形状が復元
して貫通部品にフィットした。After installing the soundproofing material for the car dash part on the car at the car assembly line, mounting various penetration parts, after the car was completed, the heat generated when the engine was operated, the soundproofing material was 55 ° C or more The temperature reached, and the shape of the hole was restored to fit the penetrating part.
実施例３ ブチルゴム20重量部、ストレート／ブロン混合アスフ
ァルト５重量部、ポリウレタンよりなり、Tg点が60℃で
ある形状記憶樹脂15重量部、炭酸カルシウム50重量部及
びタルク10重量部を混練し、1mm厚に押出し成形し、遮
音材となした。かかる遮音材を自動車ダッシュ部の貫通
部品及びワイヤーハーネスにすきまなくフィットする形
状に成形し、30℃の状態で、上記貫通部品を通す作業を
する上で効率を良くするために充分な大きさに孔の径を
広げた変形を行ない、実施例１と同様の吸音材と一体化
後、冷金型に載置し、約１分間加圧成形し、自動車ダッ
シュ部用防音材となした。Example 3 20 parts by weight of butyl rubber, 5 parts by weight of straight / bron mixed asphalt, 15 parts by weight of a shape memory resin made of polyurethane and having a Tg point of 60 ° C., 50 parts by weight of calcium carbonate, and 10 parts by weight of talc were kneaded, and 1 mm It was extruded thick and made a sound insulation material. Such a sound insulating material is formed into a shape that fits tightly into the penetrating parts and the wire harness of the dash part of an automobile, and at a temperature of 30 ° C., has a sufficient size to improve the efficiency of passing the penetrating parts. The hole was deformed to have a larger diameter, integrated with the same sound absorbing material as in Example 1, placed on a cold mold, and pressed under pressure for about 1 minute to form a sound insulating material for a car dash.
該自動車ダッシュ部用防音材を自動車組立ラインにて
自動車に取付けた後、各種の貫通部品を取付、自動車が
完成した後、エンジンを運転させた時に発生した熱によ
り、遮音材は60℃以上の温度となり、孔部の形状が復元
して貫通部品にフィットした。After installing the soundproofing material for the car dash part on the car on the car assembly line, mounting various penetrating parts, after the car is completed, the heat generated when the engine was operated, the soundproofing material was 60 ° C or more. The temperature reached, and the shape of the hole was restored to fit the penetrating part.
比較例 実施例１と同様の遮音材と吸音材からなる自動車ダッ
シュ部用防音材を自動車組立ラインにて自動車に取付け
た後、各種の貫通部品を取付、自動車が完成した。Comparative Example After installing the same sound insulating material for a vehicle dash part comprising the same sound insulating material and sound absorbing material as in Example 1 on an automobile assembly line, various penetrating parts were attached to complete the automobile.
（発明の効果） 実施例１〜実施例３ともに、自動車がエンジンを回転
させてエンジンルームから車室内への騒音を発生させる
際に、騒音の伝達経路であるダッシュインシュレーター
の遮音材の孔部がすきまなく塞がれたため、本発明の遮
音材は極めて優れた防音効果を有することが判明した。(Effects of the Invention) In all of the first to third embodiments, when the automobile rotates the engine to generate noise from the engine room to the vehicle interior, the hole of the sound insulating material of the dash insulator, which is a noise transmission path, is formed. It was found that the sound insulating material of the present invention had an extremely excellent soundproofing effect because the space was closed without gaps.
第１図は本発明になる防音材の孔部にワイヤーを通した
部分斜視図、第２図は、形状記憶樹脂を配合した遮音材
が復元した状態の部分斜視図。 （１）形状記憶樹脂を配合した遮音材、（１′）復元し
た状態の形状記憶樹脂を配合した遮音材、（２）吸音
材、（３）ワイヤー。FIG. 1 is a partial perspective view in which a wire is passed through a hole of a soundproofing material according to the present invention, and FIG. 2 is a partial perspective view in a state where a soundproofing material containing a shape memory resin is restored. (1) a sound insulating material containing a shape memory resin, (1 ') a sound insulating material containing a restored shape memory resin, (2) a sound absorbing material, and (3) a wire.
Claims (1)
いて、形状記憶樹脂を配合した遮音材（１）の孔部を、
防音材を貫通するワイヤー（４）ケーブル等の部品等の
径と、温度変化後にほぼ同じ径の孔部を形成するように
形状記憶状態を設計してなることを特徴とする自動車用
防音材。1. A sound insulating material comprising a sound insulating material and a sound absorbing material (2), wherein a hole of the sound insulating material (1) containing a shape memory resin is formed by:
A soundproofing material for automobiles, wherein a shape memory state is designed so that a hole having a diameter substantially equal to a diameter of a component such as a wire (4) cable penetrating through the soundproofing material and a temperature change is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2299765A JP2579558B2 (en) | 1990-11-07 | 1990-11-07 | Automotive sound insulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2299765A JP2579558B2 (en) | 1990-11-07 | 1990-11-07 | Automotive sound insulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04173447A JPH04173447A (en) | 1992-06-22 |
| JP2579558B2 true JP2579558B2 (en) | 1997-02-05 |
Family
ID=17876701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2299765A Expired - Lifetime JP2579558B2 (en) | 1990-11-07 | 1990-11-07 | Automotive sound insulation |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2579558B2 (en) |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63114857U (en) * | 1987-01-22 | 1988-07-23 |
-
1990
- 1990-11-07 JP JP2299765A patent/JP2579558B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH04173447A (en) | 1992-06-22 |
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