JPH0386648A - Inner decoration structure for vehicle - Google Patents
Inner decoration structure for vehicleInfo
- Publication number
- JPH0386648A JPH0386648A JP22220089A JP22220089A JPH0386648A JP H0386648 A JPH0386648 A JP H0386648A JP 22220089 A JP22220089 A JP 22220089A JP 22220089 A JP22220089 A JP 22220089A JP H0386648 A JPH0386648 A JP H0386648A
- Authority
- JP
- Japan
- Prior art keywords
- sound
- noise
- insulating material
- sound insulating
- vibration
- 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
- 238000005034 decoration Methods 0.000 title abstract 2
- 230000002093 peripheral effect Effects 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims description 44
- 239000011810 insulating material Substances 0.000 claims description 39
- 238000009413 insulation Methods 0.000 abstract description 11
- 230000002238 attenuated effect Effects 0.000 abstract description 3
- 239000012774 insulation material Substances 0.000 description 15
- 239000011358 absorbing material Substances 0.000 description 12
- 238000013016 damping Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 6
- 239000000758 substrate Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Landscapes
- Vehicle Interior And Exterior Ornaments, Soundproofing, And Insulation (AREA)
Abstract
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は車両の内装材構造に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a vehicle interior material structure.
（従来の技術）
車体パネルに制振材を装着し、その上に、ウレタンフオ
ーム製吸音材、アスファルト−ウレタン一体発泡フオー
ム及び表面遮音材を積層してなる内装材を設けたものは
知られている（実開昭６３−１７１２５６号公報参照）
。この内装材の場合、車体パネルの振動は制振材で抑え
られ、また、車体パネルの振動音は吸音材等で吸収され
、さらにこの吸音材から車室への音の洩れが表面の遮音
材で遮られることになる。(Prior art) It is known that a damping material is attached to a vehicle body panel, and an interior material made of a laminate of a urethane foam sound absorbing material, an asphalt-urethane integral foam, and a surface sound insulating material is known. (Refer to Utility Model Application Publication No. 171256/1983)
. In the case of this interior material, the vibration of the car body panel is suppressed by the damping material, and the vibration sound of the car body panel is absorbed by the sound absorbing material, and furthermore, the sound leaking from the sound absorbing material into the passenger compartment is suppressed by the sound insulating material on the surface. It will be blocked by
（発明が解決しようとする課題）
車体パネルから車室へ入る音は、上述の吸音材や遮音材
等を厚くすることによって低減することができるが、そ
れでは内装材自体が重いものになり、車両のｆｆ１Ｅｉ
ｌ増を招くことになる。(Problem to be solved by the invention) Sound that enters the passenger compartment from the vehicle body panel can be reduced by thickening the sound absorbing material or sound insulating material described above, but this would make the interior material itself heavy and ff1Ei
This will result in an increase of 1.
すなわち、本発明の課題は、大きな重量増を招くことな
く内装材の吸音性ないしは遮音性の向上図ることにある
。That is, an object of the present invention is to improve the sound absorbing or sound insulating properties of interior materials without causing a large increase in weight.
（課題を解決するための手段）
本発明は、このような課題に対して、内装材の遮音材は
一般には音を遮る目的のものであるが、これにばね・質
量系を構成することにより、遮ぎ材を所謂ダイナミック
ダンパーとして用い、車室への音の洩れをより有効に防
止できるようにするものである。(Means for Solving the Problem) The present invention solves this problem by configuring a spring/mass system on the sound insulation material of interior materials, which is generally intended for the purpose of blocking sound. The shielding material is used as a so-called dynamic damper to more effectively prevent sound from leaking into the passenger compartment.
すなわち、そのための具体的な手段の一つは、請求項（
１）に記載の車両の内装材構造であって、遮音材を有し
車体パネルに装着される内装材において、上記遮音材に
車体パネル側を凹部にして表面側に突出した多数の凸部
が訛けられ、この凸部の周壁に凸部の基部に対して先端
部が振動することを許容するための脆弱部が形成されて
いることを特徴とするものである。That is, one of the specific means for that purpose is the claim (
In the vehicle interior material structure described in 1), the interior material includes a sound insulating material and is attached to a vehicle body panel, wherein the sound insulating material has a number of convex portions with concave portions on the vehicle body panel side and protruding toward the surface side. It is characterized in that a weakened portion is formed on the peripheral wall of the convex portion to allow the tip to vibrate relative to the base of the convex portion.
他の一つは、請求項（２）に記載の車両の内装材構造で
あって、遮音材を有し車体パネルに装着される内装材に
おいて、上記遮音材に車体パネル側を凹部にして表面側
に突出した多数の凸部が設けられ、この凸部の先端部に
錘が設けられていることを特徴とするものである。The other one is the vehicle interior material structure according to claim (2), in which the interior material has a sound insulating material and is attached to a vehicle body panel, the sound insulating material has a recess on the vehicle body panel side and the surface thereof is It is characterized in that it is provided with a large number of convex portions that protrude to the side, and that a weight is provided at the tip of the convex portions.
なお、本発明において、西装材というときは、遮音材単
独のものと、遮音材に吸音材、あるいはさらに制振材を
積層したものとの双方を含むものである。In the present invention, the term "west covering material" includes both a sound insulating material alone and a sound insulating material laminated with a sound absorbing material or a damping material.
（作用）
請求項（１）に記載の車両の内装材構造においては、遮
音材の凸部は、脆弱部の在住により、基部に対して先端
部が振動できるものである。つまり、上記脆弱部と凸部
内側の凹部に入るエアとがばねを構威し、脆弱部よりも
先側の部分が質量（マス）となり、このばね・ｇｔｌ系
によってダイナミックダンパーが構成されるものである
。よって、車体パネルから放たれる音は、上記遮音材に
よって遮られるだけでなく、この音の振動が遮音材の凸
部内側の凹部内面への振動波の衝突によって減衰され、
さらに、上記ダイナミックダンパーによって所定の周波
数成分の振動が減衰され、結局、遮音材より洩れ出る音
が小さくなる。(Function) In the vehicle interior material structure according to claim (1), the tip of the convex portion of the sound insulating material can vibrate with respect to the base due to the presence of the fragile portion. In other words, the fragile part and the air that enters the recess inside the convex part form a spring, and the part beyond the fragile part becomes mass, and this spring/GTL system constitutes a dynamic damper. It is. Therefore, the sound emitted from the vehicle body panel is not only blocked by the sound insulation material, but also the vibration of this sound is attenuated by the collision of vibration waves with the inner surface of the recess inside the projection of the sound insulation material.
Furthermore, the dynamic damper attenuates vibrations of a predetermined frequency component, and as a result, the sound leaking from the sound insulating material becomes smaller.
この場合、上記ばね・質量系においては、凸部の脆弱部
の脆弱度によってばね定数を調整し、また、脆弱部の位
置によって質量を調整することができ、これにより、所
望の周波数成分の音を低減することができる。また、遮
音材は、凸部の形成によって全体としてみれば厚くなる
が、凸部は遮音材を部分的に厚内にして形成したもので
なく、車体パネル側を凹部にて形成したものであるから
、遮音材自体の大きな重量増はない。In this case, in the above spring/mass system, the spring constant can be adjusted depending on the degree of weakness of the weak part of the convex part, and the mass can also be adjusted depending on the position of the weak part. can be reduced. Furthermore, although the sound insulation material becomes thicker overall due to the formation of the convex portions, the convex portions are not formed by making the sound insulation material partially thicker, but by forming concave portions on the vehicle body panel side. Therefore, there is no significant increase in the weight of the sound insulation material itself.
請求項（２）に記載の車両の内装材構造においては、遮
音材の凸部は、先端部に錘によって質量が付加されてい
るから、この錘を設けた部分かばね・質量系の質量を構
成し、錘の周辺部がばねを構成することになる。よって
、この内装材構造においても、請求項（１〉に記載のも
のと同様に、遮音材による遮音効果、並びに凹部及びば
ね・質量系による減衰効果が得られる。この場合、錘の
重量を調整することにより、所望の周波数成分の音を低
減できることになる。また、Ｗ部は、その周壁に脆弱部
を設ける必要がないから、遮音材の耐久性の点で有利で
あるとともに、凸部の内側には錘の振動を許容するスペ
ースを確保するだけでよく、つまり、凸部を大きく突出
せしめる必要がないから、遮音材は全厚が比較的薄くな
る。In the vehicle interior material structure according to claim (2), since the convex part of the sound insulating material has a mass added to the tip by a weight, the part provided with this weight constitutes the mass of the spring/mass system. However, the periphery of the weight constitutes a spring. Therefore, in this interior material structure as well, the sound insulation effect by the sound insulation material and the damping effect by the recess and the spring/mass system can be obtained, similar to the one described in claim (1). In this case, the weight of the weight can be adjusted. By doing so, it is possible to reduce the sound of a desired frequency component.Furthermore, since there is no need to provide a weak part on the peripheral wall of the W part, it is advantageous in terms of the durability of the sound insulating material, and it is also possible to reduce the sound of the convex part. It is only necessary to secure a space inside to allow the vibration of the weight, that is, there is no need for the convex portion to protrude greatly, so the total thickness of the sound insulating material is relatively thin.
（発明の効果）
従って、請求項（１）に記載の車両の内装材構造によれ
ば、遮音材に多数の凸部を設け、この凸部に脆弱部を設
けるようにしたから、この脆弱部の脆弱度及び位置の５
１ｇ１によって、所望の特性のばね・質量系を構成し、
内装材の大きな重量増を招くことなく、遮音ないしは吸
音性の向上を図ることができるようになる。(Effect of the invention) Therefore, according to the vehicle interior material structure according to claim (1), since the sound insulating material is provided with a large number of convex portions and the convex portions are provided with fragile portions, the fragile portions are Vulnerability level and location of 5
1g1 constitutes a spring/mass system with desired characteristics,
Sound insulation or sound absorption can be improved without causing a large increase in the weight of interior materials.
また、請求項（２）に記載の車両の西装材構造によれば
、遮音材に多数の凸部を設け、この凸部の先端部に鍾を
設けるようにしたから、この錘の質量の調整によって所
望の特性のばね・質量系を構成し、内装材の大きな重量
増及び肉厚増加を招くことなく、且つ遮音材の耐久性を
確保しながら、遮音ないしは吸音性の向上を図ることが
できるようになる。Further, according to the western covering structure for a vehicle according to claim (2), the sound insulating material is provided with a large number of convex portions, and the tip of the convex portion is provided with a peg, so that the mass of the weight can be adjusted. By configuring a spring/mass system with desired characteristics, it is possible to improve sound insulation or sound absorption while ensuring the durability of the sound insulation material without causing a large increase in weight or wall thickness of the interior material. It becomes like this.
（実施例） 以下、本発明の実施例を図面に基づいて説明する。(Example) Embodiments of the present invention will be described below based on the drawings.
この実施例は第１図に示す臼動車（車両）１の内装材に
関するものである。同図において、２はエンジンルーム
と単室とを仕切るダッシュパネル、３はフロアパネル、
４はフロントサイドパネル、５は車室とトランクルーム
とを仕切るリヤパネル、６はトランクルームのフロアパ
ン、７はトランクルームサイドのフロントパネルである
。This embodiment relates to an interior material of a milling wheel (vehicle) 1 shown in FIG. In the figure, 2 is a dash panel that separates the engine room and the single room, 3 is a floor panel,
4 is a front side panel, 5 is a rear panel that partitions the vehicle interior and a trunk room, 6 is a floor pan of the trunk room, and 7 is a front panel on the side of the trunk room.
一実施例１−
本例の内装材構造は第２図及び第３図に示されており、
上記ダッシュパネル２に適用するものである。Example 1 - The interior material structure of this example is shown in FIGS. 2 and 3,
This is applied to the dash panel 2 mentioned above.
この内装材１１は、アスファルト系の制振材１２の上に
設けられたフェルト製の吸音材１３と塩化ビニール製の
遮音材１４とにより構成されている。制振材１２はダッ
シュパネル２に直接装着され、吸音材１３は制振材１２
の上に重ねられ、遮音材１４は吸音材１３の上に重ねら
れて内装材１１の表面を構成している。This interior material 11 is composed of a felt sound absorbing material 13 and a vinyl chloride sound insulating material 14 provided on an asphalt-based vibration damping material 12. The damping material 12 is directly attached to the dash panel 2, and the sound absorbing material 13 is attached to the damping material 12.
The sound insulating material 14 is superimposed on the sound absorbing material 13 to form the surface of the interior material 11.
しかして、上記遮音材１４は、上記後ぎ材１３に接触す
る基板部１５と、上ド左右に所定間隔をおいて基板部１
５から表面に突出した多数の凸部１６とにより構成され
ている。すなわち、上記凸部１６は、ダッシュパネル２
側（吸音材１３側）を凹部にして突出したものである。Thus, the sound insulating material 14 is connected to the substrate portion 15 that contacts the rear material 13 and the substrate portion 15 at a predetermined interval on the left and right sides of the upper portion.
5 and a large number of convex portions 16 protruding from the surface. That is, the convex portion 16 is located on the dash panel 2.
The side (sound absorbing material 13 side) is made into a concave portion and protrudes.
本例の場合、Ｗ部１６の横断面形状は正方形であり、凸
部１６の内側、つまり凹部の開口端は一辺が１００ｍｍ
程度になっている。そして、上記凸部１６の周壁１６ａ
の内側には、周回溝１６ｂが形成されていて、この周回
溝１６ｂがそれよりも凸部１６の基部側に対して先端側
の振動を許容する脆弱部を構成している。In this example, the cross-sectional shape of the W portion 16 is square, and the inside of the convex portion 16, that is, the open end of the concave portion, has a side of 100 mm.
It has become a degree. Then, the peripheral wall 16a of the convex portion 16
A circumferential groove 16b is formed inside the convex portion 16, and this circumferential groove 16b constitutes a fragile portion that allows vibration on the distal end side of the convex portion 16 relative to the base side.
この遮音材１４は、例えば、その裏面形状に倣った形状
の成形面を有する下型と、遮音材１４の表面形状に倣っ
た形状の成形面を有する上型との間に、熱可塑性の塩化
ビニールシートを挾んで加熱・加圧することにより得る
ことができる。This sound insulating material 14 is made of thermoplastic chloride, for example, between a lower mold having a molding surface shaped like the back surface of the sound insulating material 14 and an upper mold having a molding surface shaped like the surface shape of the sound insulating material 14. It can be obtained by sandwiching vinyl sheets and heating and pressurizing them.
従って、上記内装祠構造においては、エンジンの運転に
伴うダッシュパネル２の振動は制振材１２で抑えられ、
また、ダッシュパネル２の振動音は吸音材１３で吸収さ
れ、さらにこの吸音材１３から車室への音の洩れが遮音
材１４で防１１：、されることになる。Therefore, in the above-mentioned interior shrine structure, the vibration of the dash panel 2 due to engine operation is suppressed by the damping material 12,
Further, the vibration noise of the dash panel 2 is absorbed by the sound absorbing material 13, and furthermore, the leakage of sound from the sound absorbing material 13 into the passenger compartment is prevented by the sound insulating material 14.
しかして、上記遮音材１４では、凸部１６の脆弱部と゛
しての周回溝１６ｂと凸部１６の内側の凹部に入るエア
とがばねを構成し、周回？Ｒ１６ｂよりも先側の部分が
質量（マス）となり、このばね・質量系によってダイナ
ミックダンパーが構成されている。よって、上記後き材
１３から洩れ出る片は、’ｌｔに、この遮音材１４によ
って遮られるだけでなく、振動が上記凹部によって減衰
され、さらに、上記ダイナミックダンパーによって減衰
されることになる。Therefore, in the sound insulating material 14, the circumferential groove 16b as a weak portion of the convex portion 16 and the air entering the concave portion inside the convex portion 16 constitute a spring, and the circumferential groove 16b as a weak portion of the convex portion 16 forms a spring. The portion ahead of R16b is a mass, and this spring/mass system constitutes a dynamic damper. Therefore, the pieces leaking from the rear material 13 are not only blocked by the sound insulating material 14, but also their vibrations are attenuated by the recess and further damped by the dynamic damper.
すなわち、凸部１６に周回？Ｍ １６ ｂを形成した本
実施例に係る遮音材１４と、従来の平坦な遮音材とにつ
いて、その透過損失を調べたところ、第６図に示すよう
に、実施例では特定周波数のきの透過が少なくなってい
ることが認められた。この場合、上記ばね・質量系にお
いては、周回溝１６ｂを浅くすれば、ばね定数が大きく
なって、より高い周波数の音を低減することができ、ま
た、周回溝１６ｂの位置を凸部１６の先端側にすれば、
質量が小さくなって同様に高い周波数の音を低減するこ
とができることになる。もちろん、上記周回溝１６ｂを
上記とは逆の態様にすれば、低い周波数の音を低減する
ことができるようになることは言うまでもない。In other words, does it go around the convex portion 16? When we investigated the transmission loss of the sound insulation material 14 according to this example in which M 16 b was formed and the conventional flat sound insulation material, we found that in the example, the transmission loss of a specific frequency was It was observed that there was a decrease in In this case, in the above spring/mass system, if the circumferential groove 16b is made shallower, the spring constant becomes larger and higher frequency sounds can be reduced. If you put it on the tip side,
The mass is reduced and high frequency sounds can be reduced as well. Of course, it goes without saying that if the circumferential groove 16b is formed in a manner opposite to that described above, low frequency sounds can be reduced.
また、上述の如く、遮音材１４は金型を用いて簡り１１
に形成することができ、また、多量の材料を用いる必要
もないから、遮音材１４の大きな重量増はなく、また、
製造コストが；１゛Ｓむこともない。In addition, as described above, the sound insulating material 14 is manufactured using a mold.
In addition, since there is no need to use a large amount of material, there is no large increase in the weight of the sound insulating material 14, and
The manufacturing cost does not increase by 1゛S.
なお、上記実施例では凸部１６に周回溝１６ｂによって
脆弱部を形成したが、周回溝は凸部１６の表面側に形成
してもよく、また、周壁１６ａに薄肉部を設けて脆弱部
としてもよい。In the above embodiment, the fragile portion was formed in the convex portion 16 by the circumferential groove 16b, but the circumferential groove may be formed on the surface side of the convex portion 16, or a thin portion may be provided in the circumferential wall 16a as a weak portion. Good too.
一実施例２−
本例は第４図に示されている。なお、この第４図では遮
音材２４のみを示しているが、他のｔＭ 戊は実施例１
と同じである。Example 2 - This example is shown in FIG. Note that although only the sound insulating material 24 is shown in FIG.
is the same as
すなわち、上記遮音材２４は、基板部２５と凸部２６と
からなり、この凸部２６の先端部（ｊＩｌｉ部）の中心
部に他部よりも厚内にして略球状の錘２６ａを形成した
ものである。このＡｇ材２４は丈施例１と同様に金型を
用いて筒中に製作することができる。That is, the sound insulating material 24 is composed of a substrate portion 25 and a convex portion 26, and a substantially spherical weight 26a is formed at the center of the tip portion (jIli portion) of the convex portion 26 to be less thick than other portions. It is something. This Ag material 24 can be manufactured into a cylinder using a mold as in Example 1.
本例の場合、遮音材２４のＷ部２６は、先端部に錘２６
ａによって質量が付加されているから、この錘２６ａの
部分かばね・質量系の質ユを構成し、錘２６ａのまわり
部分（凹部２６の頂面部）がばねを構成することになる
。よって、本例の内装材構造においても、実施例１のも
のと同様に、遮音材２４による遮音効果、並びに凸部２
６の内側の凹部及びばね′・質量系による減衰効果が得
られる。また、凸部２６は、その周壁に脆弱部を設ける
必要がないから、遮音材２４の耐久性の点で有利である
とともに、先端部の錘２６ａが振動できるスペースが凸
部２６の内側にあればよく、凸部２６を大きく突出せし
める必要がないから、遮音材２４は全厚が比較的薄くな
る。In the case of this example, the W portion 26 of the sound insulating material 24 has a weight 26 at the tip.
Since the mass is added by a, this part of the weight 26a constitutes the spring/mass system, and the part around the weight 26a (the top surface of the recess 26) constitutes the spring. Therefore, in the interior material structure of this example as well, the sound insulation effect by the sound insulation material 24 and the convex portion 2
A damping effect can be obtained by the inner recess of 6 and the spring'/mass system. Further, since the convex portion 26 does not require a fragile portion on its peripheral wall, it is advantageous in terms of the durability of the sound insulating material 24, and there is a space inside the convex portion 26 in which the weight 26a at the tip can vibrate. Since the convex portion 26 does not need to protrude greatly, the total thickness of the sound insulating material 24 becomes relatively thin.
一実施例３−
本例は第５図に示されている。なお、この第５図では遮
音材３４のみを示しているが、他の構成は実施例１と同
じである。Example 3 - This example is illustrated in FIG. Although only the sound insulating material 34 is shown in FIG. 5, the other configurations are the same as in the first embodiment.
すなわち、遮音材３４は、基板部３５と、凸部３６と、
この凸部３６の先端部の中心部に固定した金属製の錘（
リベット）３６ａとからなる。That is, the sound insulating material 34 includes a substrate portion 35, a convex portion 36,
A metal weight (
rivet) 36a.
本例の場合、遮音材３４の１１１部３６は、先端部の錘
３６ａかばね・質量系の質量を横或し、そのまわり部分
がばねを構成することになる。よって、本例の内装材構
造においても、実施例２のものと同様の減衰効果が得ら
れる。In the case of this example, the 111 portion 36 of the sound insulating material 34 horizontally carries the mass of the weight 36a and the spring/mass system at the tip, and the surrounding portion constitutes the spring. Therefore, also in the interior material structure of this example, the same damping effect as that of Example 2 can be obtained.
なお、上記各実施例は、ダッシュパネル用の内装材に関
するが、フロアパネル３など第１図に示す他の車体パネ
ルにおいても、上記実施例に倣って内装材を構成するこ
とができるものである。Although each of the above embodiments relates to an interior material for a dash panel, the interior material can also be configured for other vehicle body panels shown in FIG. 1, such as the floor panel 3, in accordance with the above embodiments. .
図面は本発明の実施例を示し、第１図はｒＪ動車の斜視
図、第２図は実施例１の内装材構造の断面図、第３図は
回倒の遮音材の断面図、第４図は実施例２の遮音材の断
面図、第５図は実施例３の遮音材の断面図、第６図は実
施例と従来例の遮音特性を比較したグラフ図である。
１・・・・・・自動車
２・・・・・・ダッシュパネル
１１・・・・・・内装材
１２・・・・・・制振材
１３・・・・・・吸音材
１４．２４．３４・・・・・・遮音材
１６．２６．３６・・・・・・凸部
１６ａ・・・・・・周壁
１６ｂ・・・・・・周回満（脆す５１部）２６ａ、３６
Ｂ・旧・・錬
第６図The drawings show embodiments of the present invention, and FIG. 1 is a perspective view of an RJ vehicle, FIG. 2 is a sectional view of the interior material structure of Embodiment 1, FIG. 3 is a sectional view of a rotating sound insulation material, and FIG. FIG. 5 is a cross-sectional view of the sound insulation material of Example 2, FIG. 5 is a cross-sectional view of the sound insulation material of Example 3, and FIG. 6 is a graph comparing the sound insulation characteristics of the example and the conventional example. 1... Car 2... Dash panel 11... Interior material 12... Damping material 13... Sound absorbing material 14.24.34 ......Sound insulation material 16.26.36...Protrusion 16a...Peripheral wall 16b...Full circumference (51 brittle parts) 26a, 36
B. Old... Ren Figure 6
Claims (2)
いて、上記遮音材に車体パネル側を凹部にして表面側に
突出した多数の凸部が設けられ、この凸部の周壁に凸部
の基部に対して先端部が振動することを許容するための
脆弱部が形成されていることを特徴とする車両の内装材
構造。(1) In an interior material that includes a sound insulating material and is attached to a vehicle body panel, the sound insulating material is provided with a number of convex portions that are concave on the vehicle body panel side and protrude toward the surface side, and a convex portion is formed on the peripheral wall of the convex portion. A vehicle interior material structure, characterized in that a fragile part is formed to allow a tip part to vibrate with respect to a base part.
いて、上記遮音材に車体パネル側を凹部にして表面側に
突出した多数の凸部が設けられ、この凸部の先端部に錘
が設けられていることを特徴とする車両の内装材構造。(2) In an interior material that includes a sound insulating material and is attached to a vehicle body panel, the sound insulating material is provided with a number of convex portions that are concave on the vehicle body panel side and protrude toward the surface side, and a weight is attached to the tip of the convex portion. A vehicle interior material structure characterized by being provided with.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22220089A JPH0386648A (en) | 1989-08-29 | 1989-08-29 | Inner decoration structure for vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22220089A JPH0386648A (en) | 1989-08-29 | 1989-08-29 | Inner decoration structure for vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0386648A true JPH0386648A (en) | 1991-04-11 |
Family
ID=16778708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22220089A Pending JPH0386648A (en) | 1989-08-29 | 1989-08-29 | Inner decoration structure for vehicle |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0386648A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09163671A (en) * | 1995-11-30 | 1997-06-20 | Samsung Electro Mech Co Ltd | Spindle motor provided with soundproofing means |
-
1989
- 1989-08-29 JP JP22220089A patent/JPH0386648A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09163671A (en) * | 1995-11-30 | 1997-06-20 | Samsung Electro Mech Co Ltd | Spindle motor provided with soundproofing means |
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