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JPS61175141A - Sound insulation structure for vehicle body panel - Google Patents

Sound insulation structure for vehicle body panel

Info

Publication number
JPS61175141A
JPS61175141A JP1609485A JP1609485A JPS61175141A JP S61175141 A JPS61175141 A JP S61175141A JP 1609485 A JP1609485 A JP 1609485A JP 1609485 A JP1609485 A JP 1609485A JP S61175141 A JPS61175141 A JP S61175141A
Authority
JP
Japan
Prior art keywords
vehicle body
panel
body panel
water
sheet
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
Application number
JP1609485A
Other languages
Japanese (ja)
Inventor
Kazutoshi Mizuno
和敏 水野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP1609485A priority Critical patent/JPS61175141A/en
Publication of JPS61175141A publication Critical patent/JPS61175141A/en
Pending legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60RVEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
    • B60R13/00Elements for body-finishing, identifying, or decorating; Arrangements or adaptations for advertising purposes
    • B60R13/08Insulating elements, e.g. for sound insulation
    • B60R13/0861Insulating elements, e.g. for sound insulation for covering undersurfaces of vehicles, e.g. wheel houses

Landscapes

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

Abstract

PURPOSE:To shut off splushing sound, by attaching a sheet-like pad made of water-absorption type resin materials, on the surface of a vehicle body panel which is splushed. CONSTITUTION:Sheet-like pads 6 made of water-absorption type resin materials are laid on the entire panel surface of a wheel house 1 on the outside of a vehicle, and the panel surface of a floor panel 4 in the area which is in the vicinity of a tire 5 so that it is liable to be splashed. This pad is carried by a mesh cover 7. During running under a rain weather condition, when the pad 6 absorbs water, it swells up by several times, and therefore, effects a damping effect to attenuate the sound of splash impingement.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は自動車の車体パネル、とりわけリヤホイールハ
ウスやフロアパネル等、タイヤから飛散するスプラッシ
ュを受ける車体下部構造パネルの遮音構造に関する。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a sound insulating structure for vehicle body panels, particularly for vehicle body underbody panels such as rear wheel houses and floor panels that receive splashes from tires.

従来の技術 車体パネルの中でも、特に前述のようにタイヤから飛散
するスプラッシュを受ける部分では、スプラッシュ音が
単室側に響(・て乗員に不快感を与えな〜・ように遮音
する必要がめる。そこで、従来では、例えば昭和58年
6月日産自動車株発行サービス周報第484号272頁
、276頁に示されているように、車体パネルの単室側
のパネル面にメルシートを接着し、このメルシートのダ
ンピング効果により音圧を下げてスプラッシュ音を遮ぎ
るようにしている。また、特にリヤホイールハウスでは
チッピングによる発錆が問題となることから、その単室
側のパネル面にメルシートを接着することと併せて、車
外側のパネル面に樹脂を主材とするアンダーコートを施
して防錆対策を得て(・る。
Among conventional vehicle body panels, it is necessary to insulate the parts that receive the splash from the tires, as mentioned above, so that the splash sound does not echo into the single cabin side and cause discomfort to the occupants. Therefore, in the past, as shown in Nissan Motor Stock Issuance Service Bulletin No. 484, pp. 272 and 276, June 1984, Melsheet was pasted on the single-chamber side panel surface of the vehicle body panel. The damping effect reduces the sound pressure and blocks the splash sound.In addition, since rust due to chipping is a problem especially in the rear wheel house, Melsheet is glued to the panel surface on the single room side. In addition, an undercoat mainly made of resin is applied to the outside panel surface of the vehicle to prevent rust.

発明が解決しようとする問題点 メルシートのダンピング効果は、該メルシートの重量に
よって左右され、そのため、メルシートの層厚を比較的
大きくして、例えば4龍程度位に確保する必要があるが
、実際には貼装バラツキを考慮して7〜8關程度の層厚
で施している。このように、メルシートの層厚を大きく
設定して車体パネルの単室側パネル面に接着することか
ら、厘席を始めとして谷植宛内機能部品の配設レイアウ
トに支障を来してしまうばかりでな(、室内層住空間を
狭めてしまう結果となる。更に、車外側パネル面にもア
ンダーコートを施すために、重量が太き(嵩んで要求さ
れて〜・る車体の軽量化に逆行してしまう不具合があっ
た。
Problems to be Solved by the Invention The damping effect of Melsheet depends on the weight of the Melsheet. Therefore, it is necessary to make the layer thickness of Melsheet relatively large, for example, about 4 dragons. The layer thickness is approximately 7 to 8 times, taking into account variations in the thickness of the adhesive. In this way, since the layer thickness of Melsheet is set to be large and it is adhered to the panel surface of the single compartment side of the vehicle body panel, it will not only interfere with the layout of the functional parts in the Tanie area, including the passenger seat. (This results in a narrowing of the interior living space.Furthermore, since an undercoat is applied to the outside panel surface of the car, the weight becomes thick (which goes against the weight reduction of the car body, which is required to be bulky.) There was a problem with it.

そこで、本発明は車室内機能部品の配役レイアウトに支
障を来したり、室内居住空間を狭めることがなく、しか
も、車体の軽量化を実現することができる車体パネルの
遮音構造を提供するものである。
SUMMARY OF THE INVENTION Therefore, the present invention provides a sound insulation structure for a vehicle body panel that does not interfere with the layout of functional parts in the vehicle interior or narrow the interior living space, and can also reduce the weight of the vehicle body. be.

問題点を解決するための手段 タイヤから飛散するスプラッシュを受ける車体パネルの
車外側パネル面に、吸水して膨潤する吸水性樹脂材から
なるシート状パッド材を配設しである。
Means for Solving the Problems A sheet-like pad material made of a water-absorbing resin material that absorbs water and swells is provided on the outside panel surface of the vehicle body panel that receives splash from tires.

作用 吸水性樹脂材からなるシート状パッド材は、晴天時には
乾燥して軽量で薄いシート状を呈しているが、雨天走行
時に吸水すると膨潤して重量を増し、かつ、層厚が増大
してダンピング効果を発揮する。
Sheet-like padding made of water-absorbing resin material dries in sunny weather and takes on a lightweight, thin sheet-like shape, but when it absorbs water when driving in the rain, it swells and increases in weight, and the layer thickness increases, resulting in damping. be effective.

実施例 以下、本発明の実施例をリヤホイールハウス周りの構造
を例に採って図面と共に詳述する。
Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings, taking the structure around the rear wheel house as an example.

第1,2図におし・て、1はホイールハウスインナ2と
、ホイールハウスアウタ3とからなるリヤホイールハウ
スを示し、これらホイールハウスインナ2およびホイー
ルハウスアウタ3の車外側のパネル面の全面、およびフ
ロアパネル4のタイヤ5近傍の車外側パネル面で、該タ
イヤから飛散するスプラッシュを受は易い領域には、吸
水して膨潤する吸水性樹脂材からなるシート状のパッド
材6を配設しである。本実施例ではこのパッド材6をメ
ツシュカバー7で担持しているが、クリップ止めあるい
は接着固定するようにしてもよい。
In Figures 1 and 2, reference numeral 1 indicates a rear wheel house consisting of an inner wheel house 2 and an outer wheel house 3. , and a sheet-like pad material 6 made of a water-absorbing resin material that absorbs water and swells on the outer panel surface of the floor panel 4 in the vicinity of the tires 5 in areas that are likely to receive splashes from the tires. It is. In this embodiment, the pad material 6 is supported by the mesh cover 7, but it may also be fixed with clips or adhesive.

以上の実施例構造によれば、雨天走行時にパッド材6が
吸水するとシート状態から数倍にも膨潤し、重量を増大
する。このため、タイヤ5からスプラッシュが飛散して
衝突した場合に、該パッド材6のダンピング効果により
スプラッシュ衝突音を減衰し、従来のメルシートを施し
たものと何等遜色のない遮音効果が得られる。一方、晴
天時にはパッド材6に吸収された水分が蒸発し、パッド
材6は元の薄く、軽いシート状に復元する。また、この
パッド材6は車体パネル、即ち、ホイールインナ2.ホ
イールアウタ3およびフロアパネル4の所要領域の各車
外側のパネル面に装着しであるため、チッピングプロテ
クタとしても機能し、チッピングによるパネル面の損傷
乃至発錆を防止すると共に、チッピング音を減衰するこ
ともできる。
According to the structure of the above embodiment, when the pad material 6 absorbs water during driving in the rain, it swells several times from its sheet state, increasing the weight. Therefore, in the event of a collision caused by splashes scattered from the tire 5, the splash collision sound is attenuated by the damping effect of the pad material 6, and a sound insulation effect comparable to that of a conventional Mel sheet can be obtained. On the other hand, when the weather is sunny, the moisture absorbed by the pad material 6 evaporates, and the pad material 6 is restored to its original thin and light sheet shape. Moreover, this pad material 6 is a vehicle body panel, that is, a wheel inner 2. Since it is attached to the panel surface on the outside of the vehicle in the required area of the wheel outer 3 and floor panel 4, it also functions as a chipping protector, preventing damage or rust to the panel surface due to chipping, and attenuating chipping noise. You can also do that.

発明の効果 以上のように本発明によれば、タイヤから飛散するスプ
ラッシュを受ける車体パネルの車外側パネル面に装着し
た吸水性樹脂材からなるシート状パッド材は、乾燥状態
ではパッド材そのものの質量が嵩むことがなく、雨天走
行時に吸水すると膨潤し、かつ、重量を増大するため良
好なダンピング効果を発揮してスプラッシュ音を遮断す
ることができる。従って、従来、車体パネルの単室側の
パネル面に層厚の大きなメルシートを貼装したもののよ
うに室内居住空間を狭めたり、室内機能部品の配設レイ
アウトに支障を来すのを回避することができる。しかも
、前記パッド材は車体パネル外面にあってチッピングプ
ロテクタとしても機能するため、特別にアンダーコート
を施す必要もなく、従って、車体の軽量化とコストダウ
ンに大きく寄与することができるという実用上多大な効
果を有する。
Effects of the Invention As described above, according to the present invention, the sheet-like pad material made of a water-absorbing resin material attached to the outside panel surface of the vehicle body panel that receives splash from the tires has a mass of the pad material itself in a dry state. It is not bulky and swells when it absorbs water when driving in the rain, and because it increases its weight, it exhibits a good damping effect and can block splash noise. Therefore, it is possible to avoid narrowing the interior living space or hindering the arrangement layout of interior functional parts, which is the case with conventional methods in which thick Melsheet is pasted on the panel surface of the single room side of the vehicle body panel. Can be done. Moreover, since the pad material is located on the outer surface of the car body panel and also functions as a chipping protector, there is no need to apply a special undercoat, and this can greatly contribute to reducing the weight and cost of the car body. It has a great effect.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明の一実施例を示す略示的断面図、第2図
は第1図の■−■線に沿う断面図である。 1.4・・・車体パネル、5・・・タイヤ、6・・・パ
ッド材。
FIG. 1 is a schematic cross-sectional view showing one embodiment of the present invention, and FIG. 2 is a cross-sectional view taken along the line ■-■ in FIG. 1. 1.4... Vehicle body panel, 5... Tire, 6... Pad material.

Claims (1)

【特許請求の範囲】[Claims] (1)タイヤから飛散するスプラッシュを受ける車体パ
ネルの車外側パネル面に、吸水して膨潤する吸水性樹脂
材からなるシート状パッド材を配設したことを特徴とす
る車体パネルの遮音構造。
(1) A sound insulation structure for a car body panel, characterized in that a sheet-like pad material made of a water-absorbing resin material that absorbs water and swells is provided on the outside panel surface of the car body panel that receives splash from tires.
JP1609485A 1985-01-30 1985-01-30 Sound insulation structure for vehicle body panel Pending JPS61175141A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1609485A JPS61175141A (en) 1985-01-30 1985-01-30 Sound insulation structure for vehicle body panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1609485A JPS61175141A (en) 1985-01-30 1985-01-30 Sound insulation structure for vehicle body panel

Publications (1)

Publication Number Publication Date
JPS61175141A true JPS61175141A (en) 1986-08-06

Family

ID=11906925

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1609485A Pending JPS61175141A (en) 1985-01-30 1985-01-30 Sound insulation structure for vehicle body panel

Country Status (1)

Country Link
JP (1) JPS61175141A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6410442U (en) * 1987-07-10 1989-01-19
JP2008162549A (en) * 2007-01-04 2008-07-17 Toyota Motor Corp Soundproof structure

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6410442U (en) * 1987-07-10 1989-01-19
JP2008162549A (en) * 2007-01-04 2008-07-17 Toyota Motor Corp Soundproof structure

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