JPH02208174A - Engine hood - Google Patents
Engine hoodInfo
- Publication number
- JPH02208174A JPH02208174A JP2767789A JP2767789A JPH02208174A JP H02208174 A JPH02208174 A JP H02208174A JP 2767789 A JP2767789 A JP 2767789A JP 2767789 A JP2767789 A JP 2767789A JP H02208174 A JPH02208174 A JP H02208174A
- Authority
- JP
- Japan
- Prior art keywords
- inner panel
- outer panel
- panel
- terminal part
- engine hood
- 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
- 239000000463 material Substances 0.000 claims abstract description 17
- 229920003002 synthetic resin Polymers 0.000 claims abstract description 15
- 239000000057 synthetic resin Substances 0.000 claims abstract description 15
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 8
- 230000001681 protective effect Effects 0.000 claims description 14
- 239000002184 metal Substances 0.000 claims description 11
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 238000009413 insulation Methods 0.000 claims description 3
- 238000003825 pressing Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 2
- 230000002093 peripheral effect Effects 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- 239000000835 fiber Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 2
- 229920000049 Carbon (fiber) Polymers 0.000 description 1
- 229920000271 Kevlar® Polymers 0.000 description 1
- 239000004917 carbon fiber Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000004761 kevlar Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 1
- 238000007591 painting process Methods 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000012783 reinforcing fiber Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 229920005992 thermoplastic resin Polymers 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Landscapes
- Superstructure Of Vehicle (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は、車両のエンジンルームを開閉するエンジンフ
ードの改良に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an improvement of an engine hood that opens and closes an engine compartment of a vehicle.
（従来の技術）
第１図に示すように、自動車の車体Ｓ前端部には、エン
ジンルームＡを開閉するためのエンジンフードＦが回動
自在に枢着される。(Prior Art) As shown in FIG. 1, an engine hood F for opening and closing an engine room A is rotatably attached to the front end of a vehicle body S of an automobile.
このエンジンフードＦは従来、第５図に示すようになっ
ている。すなわち、金属薄板であるアウタパネルａとイ
ンナパネルｂを組み合せて形成される。なお説明すれば
、上記アウタパネルａは上記車体Ｓの曲面に合せて形成
され、かつその端縁はインナパネルｂの端縁を挟持する
よう折返し折曲される。上記インナパネルｂは、アウタ
パネルａの裏面側に密着し、かつスポット溶接などの手
段で接合固着される接合部ｂｌと、アウタパネルａとは
離間しかつ平行な曲面となるよう形成される膨出部ｂ２
とからなる。すなわち、上記接合部ｂｌを有することに
よりアウタパネルａの補強をなし、膨出部ｂ２を有する
ことによりエンジンフードＦとしての剛性を保持する。This engine hood F has conventionally been designed as shown in FIG. That is, it is formed by combining an outer panel a and an inner panel b, which are thin metal plates. To explain, the outer panel a is formed to match the curved surface of the vehicle body S, and its edge is folded back so as to sandwich the edge of the inner panel b. The inner panel b has a joint part bl that is in close contact with the back side of the outer panel a and is fixed by spot welding or the like, and a bulge part that is spaced apart from the outer panel a and is formed to have a parallel curved surface. b2
It consists of That is, by having the joint portion bl, the outer panel a is reinforced, and by having the bulging portion b2, the rigidity of the engine hood F is maintained.
Ｃは吸音遮熱板である。この吸音遮熱板Ｃは、たとえば
合成樹脂材ボードからなり、上記インナパネルｂの膨出
部ｂ２に取付ねじｄ・・・により取着される。そして。C is a sound-absorbing heat shield plate. This sound-absorbing and heat-insulating plate C is made of, for example, a synthetic resin board, and is attached to the bulge b2 of the inner panel b with mounting screws d... and.
このようにして構成されるエンジンフードＦは。The engine hood F constructed in this manner is as follows.
衝突事故に遭ったなど、その取付位置が変わることな（
、その場で圧潰して衝撃を吸収するような強度設計およ
び取付けがなされている。Do not change the mounting position due to a collision, etc. (
The structure is designed and installed so that it can be crushed on the spot and absorb shock.
（発明が解決しようとする課題） ところで、上記エンジンフードＦにおいては。(Problem to be solved by the invention) By the way, regarding the engine hood F mentioned above.
特にその端末部に間近があった。すなわち、メンテナン
スの際などエンジンフードＦを開放して必要な作業をな
すが、このときに不注意で何等かのものをエンジンフー
ドＦの端末部にぶつけることがある。第６図に拡大して
示すように、エンジンフードＦの端末部は、アウタパネ
ルａを折返し折曲することによりインナパネルｂを挟持
一体化してなる。互いの板厚が比較的薄いところから、
アウタパネルａの折返し部分の曲率半径も僅かでしかな
い。また、アウタパネルａの表面は所定の塗装Ｈｅで覆
われ、かつ端末部も塗装処理がなされているが、ここに
ものが衝突すれば曲率半径が小さいこともあって上記塗
装膜ｅが剥落し易い。たとえ極く些細な面積の塗装膜ｅ
の剥落であっても。It was especially close to the terminal section. That is, when the engine hood F is opened to carry out necessary work such as maintenance, the end portion of the engine hood F may be hit by something inadvertently at this time. As shown in an enlarged view in FIG. 6, the end portion of the engine hood F is formed by folding back the outer panel a to sandwich and integrate the inner panel b. Since the thickness of each plate is relatively thin,
The radius of curvature of the folded portion of the outer panel a is also only small. In addition, the surface of the outer panel a is covered with a predetermined coating He, and the end portions are also painted, but if something collides with this, the coating film e is likely to peel off because the radius of curvature is small. . Even if the paint film has an extremely small area
Even if it's flaking.
経時変化にともなって剥落部分が拡大するとともに錆の
発生の恐れがある。As time passes, the peeled area will expand and there is a risk of rust.
従来、金属薄板からなる上記アウタパネルａ。Conventionally, the outer panel a is made of a thin metal plate.
インナパネルｂを、たとえば充分な剛性を有する合成樹
脂材に換えることにより、金属薄板に必要な塗装工程を
省略でき、かつ上記塗装膜ｅの剥落や錆の発生などの不
具合から解放される。しかしながら、エンジンフードＦ
を全て合成樹脂材から構成すると８金属薄板のものと比
較して外観が劣り商品価値が低下することは避けられな
い。By replacing the inner panel b with a synthetic resin material having sufficient rigidity, for example, the painting process necessary for thin metal plates can be omitted, and problems such as peeling off of the coating film e and generation of rust can be avoided. However, the engine hood F
If it is made entirely of synthetic resin material, it is inevitable that the appearance will be inferior to that of a thin metal plate and the commercial value will be lowered.
また、上記吸音遮熱板Ｃはアウタパネルａ・インナパネ
ルｂとは材質が異なり、全く別個に製作され、そしてイ
ンナパネルｂへの取付手間を必要とする。このことから
、コストに悪影響を与えている。Further, the sound-absorbing and heat-insulating plate C is made of a different material from the outer panel a and the inner panel b, is manufactured completely separately, and requires time and effort to be attached to the inner panel b. This has a negative impact on costs.
本発明は上記事情に着目してなされたものであり、その
表面の大部分を金属薄板にして外観の保持をなし、端末
部は合成樹脂材にして塗装膜をなくシ、ここにものがぶ
つかっても全く支障なく。The present invention was made in view of the above-mentioned circumstances, and most of the surface is made of a thin metal plate to maintain the appearance, and the end part is made of synthetic resin to eliminate the coating film, so that objects can collide with it. No problem at all.
しかも剛性および吸音遮熱特性は保持できるエンジンフ
ードを提供することを目的とする。Moreover, it is an object of the present invention to provide an engine hood that can maintain rigidity and sound-absorbing and heat-insulating properties.
（課題を解決するための手段）
本発明は、低密度で吸音・遮熱特性のよい合成樹脂材か
らなるインナパネルの表面を金属薄板からなるアウタパ
ネルで覆い、上記インナパネルに上記アウタパネル端縁
に沿っで延出する保護用端ｔａ１５を一体に設け、上記
インナパネルの保護用端末部および適宜位置を加圧して
薄肉高密度化することにより高い剛性を保持する補強条
部を具備したことを特徴とするエンジンフードである。(Means for Solving the Problems) The present invention covers the surface of an inner panel made of a synthetic resin material with low density and good sound absorption and heat insulation properties with an outer panel made of a thin metal plate, and the inner panel is attached to the edge of the outer panel. A protective end ta15 extending along the inner panel is integrally provided, and a reinforcing strip part is provided that maintains high rigidity by pressurizing the protective end part of the inner panel and appropriate positions to make the inner panel thinner and denser. This is an engine hood.
（作用）
エンジンフードの表面側のほとんど大部分はこれまでと
同様の金属薄板からなるアウタパネルであるので、塗装
処理ができ美観がよい。またアウタパネルの周縁に沿っ
て合成樹脂材からなるインナパネルの保護用端末部を延
設したから、端末部にものがぶつかっても塗装膜の剥落
など生じない。しかも、インナパネルの保護用端末部お
よび適宜位置に補強条部を設けたので必要な剛性を保持
でき、かつインナパネル自体、吸音遮熱特性を保持する
。(Function) Since most of the surface side of the engine hood is an outer panel made of the same thin metal plate as before, it can be painted and has a good appearance. Furthermore, since the protective end portion of the inner panel made of a synthetic resin material extends along the periphery of the outer panel, the paint film will not peel off even if something hits the end portion. Moreover, since reinforcing strips are provided at the protective end portions of the inner panel and at appropriate positions, the required rigidity can be maintained, and the inner panel itself maintains sound-absorbing and heat-insulating properties.
（実施例） 以下２本発明の一実施例を図面にもとづいて説明する。(Example) Hereinafter, two embodiments of the present invention will be described based on the drawings.
第２図および第３図に示すように、１は金属薄板からな
るアウタパネルである。このアウタパネル１は、これま
でのものよりも−廻り小さい寸法形状とし、その表面側
はこれまでと同様の塗装処理をなす。２はインナパネル
であって。As shown in FIGS. 2 and 3, 1 is an outer panel made of a thin metal plate. This outer panel 1 has a smaller size and shape than the previous ones, and its surface side is painted in the same way as before. 2 is the inner panel.
低密度で吸音・過熱特性のよい合成樹脂材を選択する。Select a synthetic resin material with low density and good sound absorption and heating properties.
このインナパネル２の表面側は上記アウタパネル１で覆
われる。ただし、このインナパネル２の表面積はアウタ
パネル１の表面積よりも−廻り大であり、これまでのア
ウタパネルの表面積と同一である。上記インナパネル２
の周縁はアウタパネル１の周縁に沿って突出することに
なり、この突出部分が保護用端末部３として形成される
。The front side of this inner panel 2 is covered with the outer panel 1. However, the surface area of this inner panel 2 is approximately larger than the surface area of the outer panel 1, and is the same as the surface area of the conventional outer panel. Above inner panel 2
The periphery of the outer panel 1 protrudes along the periphery of the outer panel 1, and this protruding portion is formed as the protective end portion 3.
換言すれば、インナパネル２の周縁に一体１： 保護用
端末部３を延設したことになる。そして後述する手段に
より、上記保護用端末部３およびインナパネル２の適宜
位置は加圧され薄肉になって高密変化する。すなわち、
この薄肉化した部分はインナパネル２の本来の特性であ
る吸音遮熱特性がな（なり２代って高い剛性を保持する
補強条部４が形成されることになる。In other words, the protective terminal portion 3 is integrally extended to the periphery of the inner panel 2. Then, by means to be described later, appropriate positions of the protective terminal portion 3 and the inner panel 2 are pressurized to become thinner and denser. That is,
This thinned portion lacks the sound-absorbing and heat-insulating properties, which are the original properties of the inner panel 2, so that reinforcing strips 4 that maintain high rigidity are formed.
しかして、このようにして構成されるエンジンフードＦ
ａを、先に第１図に示したように所定位置に枢着装備す
る。このエンジンフードＦａの表面側のほとんど大部分
は、これまでと同様の塗装処理された金属薄板からなる
アウタパネル１であるので、美観がよい。また、このア
ウタパネル１の周縁に沿って保護用端末部３が延設され
るが。However, the engine hood F configured in this way
A is pivotally mounted at a predetermined position as shown in FIG. Since most of the surface side of this engine hood Fa is the outer panel 1 made of a painted thin metal plate similar to the conventional one, it has a good appearance. Further, a protective terminal portion 3 is provided extending along the periphery of the outer panel 1.
これは合成樹脂材からなるインナパネル２と一体のもの
であり、上記アウタパネル１との材質的な相違がかえっ
てアクセントとなって美麗である。This is integrated with the inner panel 2 made of a synthetic resin material, and the difference in material from the outer panel 1 serves as an accent and makes it more beautiful.
また、エンジンルームＡ内に対向するインナパネル２は
吸音、遮熱特性の大なる合成樹脂材からなるので、エン
ジン駆動中にあってもこれまでと同様の作用効果を奏す
る。モして°さらに、エンジンフードＦａを開放した状
態で、この端末部である保護用端末部３にものがぶつか
っても、この部分は剛性の大なる合成樹脂材からなるか
ら、何等の支障もない。当然、上記アウタパネル１の塗
装膜の剥落など生じない。しかも、インナパネル２の保
護用端末部３および適宜位置に補強条部４を設けたので
、必要な剛性を保持でき、いわゆるびびり振動など生じ
ないとともに、衝突時に取付位置がずれることなくその
場で圧潰することは、従来のものと同７である。In addition, since the inner panel 2 facing inside the engine room A is made of a synthetic resin material with excellent sound absorption and heat insulation properties, the same effects as before can be achieved even when the engine is running. In addition, even if something hits the protective terminal section 3 with the engine hood Fa open, there will be no problem because this section is made of a highly rigid synthetic resin material. do not have. Naturally, the paint film on the outer panel 1 does not peel off. Moreover, since the reinforcing strips 4 are provided at the protective end portion 3 and appropriate positions of the inner panel 2, the necessary rigidity can be maintained, so-called chatter vibrations do not occur, and the mounting position does not shift in the event of a collision. The crushing is the same as the conventional one.
なお、上記インナパネル２は第４図に示すような手段で
成形される。すなわち、このインナノくネル２は、いわ
ゆるスタンパブルシートと呼ばれるものである。材料と
しては、熱可塑性樹脂（ｐｐ。Note that the inner panel 2 is formed by a method as shown in FIG. That is, this inner tunnel 2 is what is called a stampable sheet. The material is thermoplastic resin (pp.
ＰＢＴ、ＰＡなど）を８０〜５０重量％と１強化繊維Ｃ
ＧＦニガラスファイバー、ＣＦ’：カーボンファイバー
、ＫＦｓケブラファイバーなど）を２０〜５０重量％と
の混合材である。この混合材から原シートを構成し、こ
れを所定の寸法に切断してから、このシートを加熱する
。シートに内在した空気が、加熱作用にともなって膨張
し１面積が−廻り大になるとともに、その肉厚が２〜５
倍厚くなる。このような厚肉化したシートを金型の下型
にセットし、上型を加圧する。上型は２種あって、はじ
めインナパネルの概略形状を設定するための上型を用い
て加圧する。この上型の端末部および適宜位置は加圧部
分がなく空白となっている。その状態を保持したまま、
別の上型を用いて加圧する。この上型は先の上型の空白
部分に挿入され、かつこれよりも加圧圧力が大であると
ともに加圧深さを大にする。その結果、インナパネルは
部分的に薄肉高密度化する。これら加圧工程が終了した
ら、そのまま金型を放置冷却し、所定の型温に低下した
ら金型から外す。すなわち、保護用端末部３および補強
条部４を備え、製品化された上記インナパネル２が完成
する。80-50% by weight of PBT, PA, etc.) and 1 reinforcing fiber C
It is a mixed material containing 20 to 50% by weight of GF Niglass fiber, CF': carbon fiber, KFs Kevlar fiber, etc.). An original sheet is formed from this mixed material, cut into a predetermined size, and then heated. The air contained in the sheet expands due to the heating effect, and the area becomes larger, and its wall thickness increases from 2 to 5 mm.
It becomes twice as thick. This thickened sheet is set in the lower die of a mold, and the upper die is pressurized. There are two types of upper molds. First, the upper mold is used to set the general shape of the inner panel. Pressure is applied using the upper mold. The end portion and appropriate positions of this upper mold are blank as there is no pressurizing portion. While maintaining that state,
Pressure is applied using another upper mold. This upper mold is inserted into the blank space of the previous upper mold, and has a higher pressure and a greater pressing depth than the previous upper mold. As a result, the inner panel becomes partially thinner and denser. After these pressurization steps are completed, the mold is left to cool as it is, and when the mold temperature has dropped to a predetermined temperature, it is removed from the mold. That is, the inner panel 2 is completed as a product, including the protective terminal portion 3 and the reinforcing strip portion 4.
以上説明したように本発明によれば、エンジンフードの
表面側のほとんど大部分はこれまでと同様の金属薄板か
らなるアウタパネルであるので。As explained above, according to the present invention, most of the surface side of the engine hood is the outer panel made of the same thin metal plate as before.
塗装処理ができ美観がよい。またアウタパネルの周縁に
沿って合成樹脂材からなるインナパネルの保護用端末部
が延設されるから、アクセントとなって美観がよいとと
もに、この端末部にものがぶつかっても塗装膜の剥落が
なく、全く支障ない。It can be painted and has a good appearance. In addition, since the protective terminal part of the inner panel made of synthetic resin extends along the periphery of the outer panel, it becomes an accent and looks good, and the paint film will not peel off even if something hits this terminal part. , no problem at all.
しかも２インナパネルの保護用端末部および適宜位置に
補強条部を設けたので必要な剛性を保持でき、かつイン
ナパネル自体、吸音遮熱特性を保持する効果を奏する。Moreover, since the reinforcing strips are provided at the protective end portions of the two inner panels and at appropriate positions, the necessary rigidity can be maintained, and the inner panels themselves have the effect of maintaining sound-absorbing and heat-insulating properties.
第１図は車体要部の斜視図、第２図ないし第４図は本発
明の一実施例を示し、第２図はエンジンフードの縦断面
図、第３図はその一部省略した平面図、第４図はインナ
パネルの製造工程図、第５図および第６図は本発明の従
来例を示し、第５図はエンジンフードの縦断面図、第６
図はその一部を拡大した。縦断面図である。
２・・・インナパネル、１・・・アウタパネル。
３・・・保護用端末部、４・・・補強条部。
出願人代理人 弁理士 鈴江武彦
Ｆ（Ｆａ）
エシシ゛〉７−ド
第
図
第
図Fig. 1 is a perspective view of the main parts of the vehicle body, Figs. 2 to 4 show an embodiment of the present invention, Fig. 2 is a longitudinal sectional view of the engine hood, and Fig. 3 is a partially omitted plan view. , FIG. 4 is a manufacturing process diagram of the inner panel, FIGS. 5 and 6 show a conventional example of the present invention, FIG. 5 is a longitudinal sectional view of the engine hood, and FIG.
The figure is partially enlarged. FIG. 2... Inner panel, 1... Outer panel. 3...Protection terminal part, 4...Reinforcement strip part. Applicant's representative Patent attorney Takehiko Suzue F (Fa)
Claims (1)
ナパネルと、このインナパネルの表面を覆う金属薄板か
らなるアウタパネルと、上記インナパネルに一体に設け
られ上記アウタパネル端縁に沿って延出される保護用端
末部と、上記インナパネルの保護用端末部およびインナ
パネルの適宜位置に形成され加圧し薄肉高密度化するこ
とにより高い剛性を保持する補強条部とを具備したこと
を特徴とするエンジンフード。An inner panel made of a synthetic resin material with low density and good sound absorption and heat insulation properties, an outer panel made of a thin metal plate covering the surface of the inner panel, and an outer panel provided integrally with the inner panel and extending along the edge of the outer panel. and a reinforcing strip that is formed at an appropriate position on the protective terminal portion of the inner panel and the inner panel and maintains high rigidity by applying pressure and making the inner panel thinner and denser. engine hood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2767789A JPH02208174A (en) | 1989-02-08 | 1989-02-08 | Engine hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2767789A JPH02208174A (en) | 1989-02-08 | 1989-02-08 | Engine hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02208174A true JPH02208174A (en) | 1990-08-17 |
Family
ID=12227596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2767789A Pending JPH02208174A (en) | 1989-02-08 | 1989-02-08 | Engine hood |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02208174A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9310986U1 (en) * | 1993-07-22 | 1993-09-02 | Adam Opel AG, 65428 Rüsselsheim | Large-area body element of a motor vehicle, in particular engine or trunk hood |
| JP2009517283A (en) * | 2005-12-01 | 2009-04-30 | イノプラスト | Vehicle bonnet and method for manufacturing the same |
| US7635157B2 (en) * | 2007-09-11 | 2009-12-22 | GM Global Technology Operation, INC | Vehicle hood assembly with rippled cushion support |
| US7690720B2 (en) * | 2008-01-31 | 2010-04-06 | Gm Global Technology Operations, Inc. | Energy absorbing vehicle hood assembly with asymmetric sandwich inner structure |
| US7735908B2 (en) * | 2007-07-24 | 2010-06-15 | Gm Global Technology Operations, Inc. | Vehicle hood with sandwich inner structure |
-
1989
- 1989-02-08 JP JP2767789A patent/JPH02208174A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9310986U1 (en) * | 1993-07-22 | 1993-09-02 | Adam Opel AG, 65428 Rüsselsheim | Large-area body element of a motor vehicle, in particular engine or trunk hood |
| JP2009517283A (en) * | 2005-12-01 | 2009-04-30 | イノプラスト | Vehicle bonnet and method for manufacturing the same |
| US7735908B2 (en) * | 2007-07-24 | 2010-06-15 | Gm Global Technology Operations, Inc. | Vehicle hood with sandwich inner structure |
| US7635157B2 (en) * | 2007-09-11 | 2009-12-22 | GM Global Technology Operation, INC | Vehicle hood assembly with rippled cushion support |
| US7690720B2 (en) * | 2008-01-31 | 2010-04-06 | Gm Global Technology Operations, Inc. | Energy absorbing vehicle hood assembly with asymmetric sandwich inner structure |
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