WO1993015932A1 - Molded sound insulation material for automobile dashboard - Google Patents

Molded sound insulation material for automobile dashboard Download PDF

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Publication number
WO1993015932A1
WO1993015932A1 PCT/JP1993/000147 JP9300147W WO9315932A1 WO 1993015932 A1 WO1993015932 A1 WO 1993015932A1 JP 9300147 W JP9300147 W JP 9300147W WO 9315932 A1 WO9315932 A1 WO 9315932A1
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WO
WIPO (PCT)
Prior art keywords
molded
soundproofing material
sound insulation
insulation material
sound
Prior art date
Application number
PCT/JP1993/000147
Other languages
French (fr)
Japanese (ja)
Inventor
Hiroyasu Matsushita
Hisashi Goto
Masahiro Nojima
Original Assignee
Nihon Tokushu Toryo 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 Nihon Tokushu Toryo Co., Ltd. filed Critical Nihon Tokushu Toryo Co., Ltd.
Publication of WO1993015932A1 publication Critical patent/WO1993015932A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
    • B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
    • B60R16/0207—Wire harnesses
    • B60R16/0215—Protecting, fastening and routing means therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0815—Acoustic or thermal insulation of passenger compartments
    • B60R13/083—Acoustic or thermal insulation of passenger compartments for fire walls or floors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00—Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08—Insulating elements, e.g. for sound insulation
    • B60R13/0846—Insulating elements, e.g. for sound insulation for duct, cable or rod passages, e.g. between engine and passenger compartments

Definitions

  • the present invention relates to a molded soundproofing material for a dash portion of an automobile, and more particularly, to a soundproofing material comprising a soundproofing material and a soundproofing material, while preventing noise in an engine room from entering a vehicle interior and being prevented by the soundproofing material.
  • a soundproofing material for automobile dash parts, it passes through the gap between the through hole of the soundproofing material, which is inevitably provided to penetrate wires and cables, and the wire harness, and enters the cabin.
  • the present invention relates to a molded soundproofing material also intended to prevent engine noise from entering.
  • felt made of animal and vegetable fibers and synthetic resin fibers or foam made of synthetic resin and vibration damping made of rubber, vinyl chloride, and asphalt Molded soundproofing materials made of composite materials are manufactured.
  • the structure of the vehicle uses wires or cables to connect the engine room and the cabin.
  • the dash panel was provided with the required number of holes, and the soundproofing material itself was also provided with through-holes. Noise in the engine room penetrated into the cabin through the gap between the through hole and the harness, and became a large noise source in the cabin.
  • An object of the present invention is to provide a through-hole provided in a dash panel and a wire harness. (Harness case) to prevent noise from entering the vehicle compartment from the engine room through the gap.
  • the present inventors have made intensive studies and as a result, have solved the above problem by embedding a harness case having terminals in a sound absorbing material of a molded sound insulating material to be attached to a dash panel. They have found that they can do so, and the gist of the present invention is as follows.
  • the harness case 3 having at least one terminal 4 on the engine room side and the vehicle interior side at the same time as the manufacturing of the soundproofing material is used.
  • Molded soundproofing material for automobile dash parts characterized by being buried inside.
  • the sound-absorbing material 1 is required to exhibit excellent sound-absorbing performance, and is excellent in formability and shape retention.
  • a bulky nonwoven fabric, a thin nonwoven fabric, a glass mat, a foam material, or the like may be used.
  • one or more of discontinuous fiber materials of animal, vegetable, and synthetic resin, and one of those mainly composed of binders such as thermosetting resins and thermoplastic resins Using the above, in the case of foam materials, it is preferable to use polystyrene, polypropylene, polyurethane or the like.
  • Sound insulation material 2 uses rubber, synthetic resin, and bituminous components as binders, and other vulcanizing agents, vulcanization accelerators, talc, clay, calcium carbonate, mica, defibrated paper, It can be obtained by using a filler such as a defibrated organic fiber, for example, by mixing a heated melted rubber or the like and the filler with a heating kneader, extruding, and rolling.
  • a filler such as a defibrated organic fiber, for example, by mixing a heated melted rubber or the like and the filler with a heating kneader, extruding, and rolling.
  • the harness case 3 embedded in the sound absorbing material 1 is a brake system between the engine room and the vehicle interior, and a cable for electric signals (wire-to-harness) It has a cylindrical shape through which a plurality of wire harnesses can be passed, and has at least one terminal 4 on each of the engine room side and the vehicle interior side.
  • the terminal 4 attached to the harness case 3 needs to be capable of attaching a plurality of wires and wires.
  • FIG. 1 is a perspective view of a molded soundproof material according to the present invention.
  • FIG. 2 is a sectional view taken along line AA of FIG.
  • Each code indicates 1: sound absorbing material, 2: sound insulating material, 3: harness case, 4: terminal.
  • a sound insulating material made of a 3.0 mm thick vinyl chloride sheet formed into a desired shape is placed on a lower mold for pressure molding, sucked, and hardened to a desired position on the sound insulating material.
  • a bulky nonwoven cloth consisting of 50 parts by weight of chemicals and 50 parts by weight of cotton was formed into a desired shape under a pressure of 15 kg / c, and laminated on the sound insulating material.
  • Example 2 The same sound insulating material as in Example 1 provided with a number of through holes for passing preformed wires and cables on the lower mold for pressure molding was placed and sucked, and the bulkiness was the same as in Example 2.
  • the nonwoven was layered.
  • the seed carcasses were integrated under a pressure condition of 10 kg / cm 2 to obtain a molded soundproofing material 3.
  • the molded soundproofing materials 1 to 3 are mounted on the dash part of the car, and the transmitted sound from the engine room at the driver's ear position in the cabin in the frequency range of 250 to 200 Hz is measured.
  • the noise reduction values of Molded Soundproofing Material 1 and Molded Soundproofing Material 2 compared to Molded Soundproofing Material 3 were as follows. Result) Frequency (Hz) Molded soundproofing material 2 5 0 5 0 0 1 0 0 0 2 0 0 0 0
  • the molded soundproofing material according to the present invention has a satisfactory soundproofing effect as compared with the conventional molded soundproofing material having a through hole.
  • the present invention relates to a molded soundproofing material mounted on a dash portion of an automobile, and in particular, an engine that enters a vehicle interior through a gap between a through hole provided in a soundproofing material including a sound insulating material and a sound absorbing material and a wire harness. It is a molded soundproofing material that prevents noise before it occurs.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
  • Body Structure For Vehicles (AREA)

Abstract

A molded sound insulation material for an automobile dashboard adapted to be mounted on a dashboard panel separating an engine compartment from a passenger compartment. This molded sound insulation material comprises a sound screening material (2) and a sound absorbing material (1), and a harness case (3) having one or more terminals (4) on the engine compartment side and passenger compartment side respectively is embedded in the sound absorbing material (1) at the same time when the sound insulation material is produced, whereby noises in the engine compartment are prevented from passing through a gap between a through hole formed in the dashboard panel and a wiring harness and from penetrating into the passenger compartment.

Description

明 細 書 自動車ダッシュ部用成形防音材 [技術分野〕  Description Molded soundproofing material for automotive dash section [Technical field]
. この発明は、 自動車ダッシュ部用成形防音材に関し、 詳細にはェンジ ンルーム内の騒音が車室内に侵入するのを吸、 遮音材によ リ防止すると 共に、 遮音材と吸音材からなる防音材を自動車ダッシュ部用の防音材と して取り付けた際、 ワイヤ一、 ケーブル類を貫通させるために必然的に 設けられる防音材の貫通孔部とヮィャ一ハーネスの隙間を通過して車室 内に侵入するエンジン騒音を未然に防止することをも目的と した成形防 音材に関する。  TECHNICAL FIELD The present invention relates to a molded soundproofing material for a dash portion of an automobile, and more particularly, to a soundproofing material comprising a soundproofing material and a soundproofing material, while preventing noise in an engine room from entering a vehicle interior and being prevented by the soundproofing material. When installed as a soundproofing material for automobile dash parts, it passes through the gap between the through hole of the soundproofing material, which is inevitably provided to penetrate wires and cables, and the wire harness, and enters the cabin. The present invention relates to a molded soundproofing material also intended to prevent engine noise from entering.
〔背景技術〕 (Background technology)
従来より、 例えば、 自動車用の吸、 遮音防音材と しては、 動植物性繊 維及び合成樹脂性繊維からなるフエルトも しく は合成樹脂製フォーム材 とゴム、 塩化ビニル、 アスファル ト製の制振材を複合してなる成形防音 材が製造されている。  Conventionally, for example, as a sound absorbing and sound insulating material for automobiles, felt made of animal and vegetable fibers and synthetic resin fibers or foam made of synthetic resin and vibration damping made of rubber, vinyl chloride, and asphalt Molded soundproofing materials made of composite materials are manufactured.
しかしながら、 かかる成形防音材をェンジンルームと車室内とを区画 するダッシュパネルに装着し、 防音の用に供せんとする場合、 自動車の 構造上ワイヤーやケーブルを用いてエンジンルームと車室内とを結ぶた めにダッシュパネルには必要数量の孔が設けられ、 それに対応して防音 材自体にも貫通孔部を設けていた。 かかる貫通孔とヮィャ一ハーネスの 隙間からェンジンルーム内の騒音が車室内に侵入し、 車室内の大きな騒 音源となっていた。  However, when such a molded soundproofing material is mounted on a dash panel that separates the engine room and the cabin and is not used for soundproofing, the structure of the vehicle uses wires or cables to connect the engine room and the cabin. For this purpose, the dash panel was provided with the required number of holes, and the soundproofing material itself was also provided with through-holes. Noise in the engine room penetrated into the cabin through the gap between the through hole and the harness, and became a large noise source in the cabin.
本発明の課題は、 ダッシュパネルに設ける貫通孔とワイャ一ハーネス (ハーネスケース） の隙間を通じてエンジンルームから車室内へ侵入す る騒音を防止する点にある。 An object of the present invention is to provide a through-hole provided in a dash panel and a wire harness. (Harness case) to prevent noise from entering the vehicle compartment from the engine room through the gap.
〔発明の開示〕 [Disclosure of the Invention]
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、 ダッシ ュパネルに装着する成形防音材の吸音材中に端子を有するハ一ネスケー スを埋設することによ リ上記課題を解決できることを知見したものであ り、 本発明の要旨は、 以下の通りである。  In order to solve this problem, the present inventors have made intensive studies and as a result, have solved the above problem by embedding a harness case having terminals in a sound absorbing material of a molded sound insulating material to be attached to a dash panel. They have found that they can do so, and the gist of the present invention is as follows.
遮音材 2と吸音材 1 からなる防音材において、 該防音材の製造と同時 にエンジンルーム側と車室内側に各々 1 つ以上の端子 4を有するハーネ スケ一ス 3を該防音材の吸音材中に埋設してなることを特徴とする自動 車ダッシュ部用成形防音材。  In the soundproofing material composed of the soundproofing material 2 and the soundproofing material 1, the harness case 3 having at least one terminal 4 on the engine room side and the vehicle interior side at the same time as the manufacturing of the soundproofing material is used. Molded soundproofing material for automobile dash parts, characterized by being buried inside.
吸音材 1 は、 優れた吸音性能を発揮するために必要とし、 成形性及び 形状保持性に優れるものを使用する。 例えば、 嵩高性不織布、 薄葉状不 織布、 ガラスマッ ト、 フォーム材等でよい。 嵩高性不織布の場合、 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、 熱可塑性樹脂等の結合剤を主体と してなるものの 1種以上 を使用し、 フォーム材の場合、 ポリスチレン、 ポリプロピレン、 ポリ ウ レタン等の使用が好ま しい。  The sound-absorbing material 1 is required to exhibit excellent sound-absorbing performance, and is excellent in formability and shape retention. For example, a bulky nonwoven fabric, a thin nonwoven fabric, a glass mat, a foam material, or the like may be used. In the case of bulky nonwoven fabrics, one or more of discontinuous fiber materials of animal, vegetable, and synthetic resin, and one of those mainly composed of binders such as thermosetting resins and thermoplastic resins Using the above, in the case of foam materials, it is preferable to use polystyrene, polypropylene, polyurethane or the like.
遮音材 2は、 ゴム成分、 合成樹脂成分、 歴青質成分等をパイ ンダ一と し、 その他加硫剤、 加硫促進剤、 タルク、 ク レー、 炭酸カルシウム、 マ イカ、 故紙解繊物、 有機繊維の解繊物等の充填材を使用し、 例えば、 加 熱溶融したゴム等と充填材を加温混練機にて混合し、 押し出した後、 圧 延することにより得ることができる。  Sound insulation material 2 uses rubber, synthetic resin, and bituminous components as binders, and other vulcanizing agents, vulcanization accelerators, talc, clay, calcium carbonate, mica, defibrated paper, It can be obtained by using a filler such as a defibrated organic fiber, for example, by mixing a heated melted rubber or the like and the filler with a heating kneader, extruding, and rolling.
吸音材 1 中に埋設してなるハーネスケース 3 とは、 エンジンルームと 車室内との間のブレーキ系統、 電気信号のケーブル （ワイヤ一ハーネス） を通す筒状のものであリ、 複数本のワイヤーハ.一ネスを通すことが可能 であり、 エンジンルーム側と車室内側に各々 1個以上の端子 4を有する ものである。 The harness case 3 embedded in the sound absorbing material 1 is a brake system between the engine room and the vehicle interior, and a cable for electric signals (wire-to-harness) It has a cylindrical shape through which a plurality of wire harnesses can be passed, and has at least one terminal 4 on each of the engine room side and the vehicle interior side.
ハーネスケース 3 に取り付けられる端子 4は、 複数のワイヤ一ハ一ネ スの取り付けが可能であることを必要とする。  The terminal 4 attached to the harness case 3 needs to be capable of attaching a plurality of wires and wires.
〔図面の簡単な説明〕 [Brief description of drawings]
第 1 図は、 本発明になる成形防音材の斜視図である。  FIG. 1 is a perspective view of a molded soundproof material according to the present invention.
第 2図は、 第 1 図の A— A断面図である。  FIG. 2 is a sectional view taken along line AA of FIG.
各符号は、 1 ： 吸音材、 2 ： 遮音材、 3 ： ハーネスケース、 4 ： 端子 を表わす。  Each code indicates 1: sound absorbing material, 2: sound insulating material, 3: harness case, 4: terminal.
〔発明を実施するための最良の形態〕 [Best mode for carrying out the invention]
(実施例）  (Example)
以下に実施例を挙げ本発明のよ リ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。  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 to only the following examples.
(実施例 1 )  (Example 1)
3 . O m m厚の合成ゴム系シー 卜からなる遮音材にハーネスケース用 の孔を設けた後、 ウレタンフォーム用下金型上に載置、 真空吸引し、 ハ —ネスケースを所望位置に設定後、 上金型を降ろし、 ポリエステル トリ オール 1 0 0重量部、 T D I 3 0重量部、 水 2重量部、 ァミ ン系触媒 0 . 3重量部、 ジェタノ一ルァミン 3重量部よ りなるウレタン樹脂発泡剤原 液成分を注入し、 発泡せしめ、 成形防音材 1 となした。  3. After making a hole for the harness case in the sound insulation material made of a synthetic rubber sheet with a thickness of O mm, place it on the lower mold for urethane foam, vacuum-suction, and set the harness case to the desired position. The upper mold is removed, and a urethane resin foam consisting of 100 parts by weight of polyester triol, 30 parts by weight of TDI, 2 parts by weight of water, 0.3 parts by weight of an amide catalyst, and 3 parts by weight of jetanoylamine The stock solution was injected and foamed to form molded soundproofing material 1.
' ' (実施例 2 ) '' (Example 2)
所望形状に成形した 3 . 0 m m厚の塩化ビニル系シートからなる遮音 材を加圧成形用下金型上に載置、 吸引 し、 該遮音材上の所望位置にハー ネスケースを設定後、 化緣 5 0重量部、 綿 5 0重量部からなる嵩高性不 織布を 1 5 k g / c の加圧条件で所望形状に成形し、 遮音材上に積 層した。 かかる積層物を 1 0 k g / c m 2 の圧力条件で一体化せしめて 成形防音材 2 を得た。 A sound insulating material made of a 3.0 mm thick vinyl chloride sheet formed into a desired shape is placed on a lower mold for pressure molding, sucked, and hardened to a desired position on the sound insulating material. After setting the nest case, a bulky nonwoven cloth consisting of 50 parts by weight of chemicals and 50 parts by weight of cotton was formed into a desired shape under a pressure of 15 kg / c, and laminated on the sound insulating material. Such laminate to obtain a molded soundproofing material 2 allowed integrated in 1 0 pressure conditions kg / cm 2.
(比較例）  (Comparative example)
加圧成形用下金型上に予め成形したワイヤー、 ケーブル類を通すため の多数の貫通孔を設けた実施例 1 と同様の遮音材を載置、 吸引 し、 実施 例 2と同様の嵩高性不織布を稷層した。 かかる種屠物を 1 0 k g / c m 2 の圧力条件で一体化せしめて成形防音材 3 を得た。 The same sound insulating material as in Example 1 provided with a number of through holes for passing preformed wires and cables on the lower mold for pressure molding was placed and sucked, and the bulkiness was the same as in Example 2. The nonwoven was layered. The seed carcasses were integrated under a pressure condition of 10 kg / cm 2 to obtain a molded soundproofing material 3.
(試験方法） (Test method)
成形防音材 1〜成形防音材 3 を自動車ダッシュ部に装着し、 2 5 0 〜 2 0 0 0 H zの周波数領域での車室内の運転者耳位置でのエンジンルー ムからの透過音を測定し、 成形防音材 3 と比較した場合の成形防音材 1 と成形防音材 2の騒音低減値は、 以下のとおリであつた。 結果） 周 波 数 （ H z ) 成形防音材 2 5 0 5 0 0 1 0 0 0 2 0 0 0  The molded soundproofing materials 1 to 3 are mounted on the dash part of the car, and the transmitted sound from the engine room at the driver's ear position in the cabin in the frequency range of 250 to 200 Hz is measured. However, the noise reduction values of Molded Soundproofing Material 1 and Molded Soundproofing Material 2 compared to Molded Soundproofing Material 3 were as follows. Result) Frequency (Hz) Molded soundproofing material 2 5 0 5 0 0 1 0 0 0 2 0 0 0
1 1 d B 3 d B 2 d B 2 d B 1 1 d B 3 d B 2 d B 2 d B
2 1 d B 2 d B 3 d B 2 d B (発明の効果） 2 1 d B 2 d B 3 d B 2 d B (The invention's effect)
本発明になる成形防音材は、 従来の貫通孔部を有する成形防音材と比 ベ、 満足な防音効果を有するものであった。  The molded soundproofing material according to the present invention has a satisfactory soundproofing effect as compared with the conventional molded soundproofing material having a through hole.
〔産業上の利用可能性〕 [Industrial applicability]
本発明は、 自動車ダッシュ部に装着する成形防音材であり、 特には、 遮音材と吸音材からなる防音材に設けられた貫通孔部とヮィヤーハーネ スの隙間を通過して車室内に侵入するエンジン騒音を未然に防止する成 形防音材である。  The present invention relates to a molded soundproofing material mounted on a dash portion of an automobile, and in particular, an engine that enters a vehicle interior through a gap between a through hole provided in a soundproofing material including a sound insulating material and a sound absorbing material and a wire harness. It is a molded soundproofing material that prevents noise before it occurs.

Claims

請 求 の 範 囲 The scope of the claims
1 . 遮音材 2 と吸音材 1 からなる防音材において、 該防音材の製造と同 時にエンジンルーム側と車室内側に各々 1 つ以上の端子 4を有するハー ネスケース 3 を該防音材の吸音材中に埋設してなることを特徴とする自 動車ダッシュ部用成形防音材。 1. At the same time as the production of the soundproofing material, the harness case 3 having at least one terminal 4 on the engine room side and the vehicle interior side is simultaneously attached to the soundproofing material including the soundproofing material 2 and the soundproofing material 1. A molded sound-insulating material for automobile dash parts, which is buried inside.
PCT/JP1993/000147 1992-02-05 1993-02-05 Molded sound insulation material for automobile dashboard WO1993015932A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4/47703 1992-02-05
JP4770392A JPH0692190A (en) 1992-02-05 1992-02-05 Formed sound insulating material for automobile dashboard part

Publications (1)

Publication Number Publication Date
WO1993015932A1 true WO1993015932A1 (en) 1993-08-19

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JP (1) JPH0692190A (en)
WO (1) WO1993015932A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2341353A (en) * 1998-09-11 2000-03-15 Rover Group Bulkhead assembly

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6116950U (en) * 1984-07-05 1986-01-31 河西工業株式会社 Automotive insulator dash
JPS61245410A (en) * 1985-04-24 1986-10-31 いすゞ自動車株式会社 Composite laminate body
JPS63166635A (en) * 1986-12-27 1988-07-09 Honda Motor Co Ltd Assembling structure of electrical parts of vehicle
JPS6425940U (en) * 1987-08-06 1989-02-14
JPS6463436A (en) * 1987-09-02 1989-03-09 Honda Motor Co Ltd Insulator construction
JPH0187943U (en) * 1987-12-03 1989-06-09

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6116950U (en) * 1984-07-05 1986-01-31 河西工業株式会社 Automotive insulator dash
JPS61245410A (en) * 1985-04-24 1986-10-31 いすゞ自動車株式会社 Composite laminate body
JPS63166635A (en) * 1986-12-27 1988-07-09 Honda Motor Co Ltd Assembling structure of electrical parts of vehicle
JPS6425940U (en) * 1987-08-06 1989-02-14
JPS6463436A (en) * 1987-09-02 1989-03-09 Honda Motor Co Ltd Insulator construction
JPH0187943U (en) * 1987-12-03 1989-06-09

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2341353A (en) * 1998-09-11 2000-03-15 Rover Group Bulkhead assembly

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Publication number Publication date
JPH0692190A (en) 1994-04-05

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