JPH01114426A - Long-size resin material article having deformation preventive function - Google Patents
Long-size resin material article having deformation preventive functionInfo
- Publication number
- JPH01114426A JPH01114426A JP27399887A JP27399887A JPH01114426A JP H01114426 A JPH01114426 A JP H01114426A JP 27399887 A JP27399887 A JP 27399887A JP 27399887 A JP27399887 A JP 27399887A JP H01114426 A JPH01114426 A JP H01114426A
- Authority
- JP
- Japan
- Prior art keywords
- parts
- bumper
- connectors
- long
- elongation
- 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
- 229920005989 resin Polymers 0.000 title claims abstract description 9
- 239000011347 resin Substances 0.000 title claims abstract description 9
- 239000000463 material Substances 0.000 title claims abstract description 6
- 230000003449 preventive effect Effects 0.000 title 1
- 238000005452 bending Methods 0.000 claims abstract description 6
- 229920003002 synthetic resin Polymers 0.000 claims description 5
- 239000000057 synthetic resin Substances 0.000 claims description 5
- 230000002265 prevention Effects 0.000 claims 1
- 230000008602 contraction Effects 0.000 abstract description 6
- 238000010276 construction Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 241001449342 Chlorocrambe hastata Species 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は熱膨張による変形を防止することのできる合成
樹脂製の長尺物に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a long article made of synthetic resin that can prevent deformation due to thermal expansion.
（従来技術）
合成樹脂により成形された自動車のバンパーやりヤスボ
イラのような長尺物は気温の上昇下降により伸び縮みし
て大きく変形する。例えばポリプロピレンの線膨張係数
が］○Ｘ １０−５／’Ｃであるのに対し、鋼板の線膨
張係数はこれより１桁小さい１０×１０−８／℃である
ため、いま仮に気温２０℃のもとて自動車のボディに取
付けられたバンパーは、夏の暑い日炎天に曝されて５０
℃を超えたような場合、鋼板に対して長さが３ｍｍ以上
伸びることになる。このため、２ｍｍ乃至５ｍｍの隙間
を設けでボディに取付けられたバンパーはボディの側面
から飛出して建付けを悪くしたり、ボディの一部と接触
して塗膜を剥し錆を発生させたり、あるいはコンビライ
トとバンパーの隙間を狭くしたり、ざらにはボディへの
取付は部の間で熱膨張して逃げ場をなくしたバンパーが
弓状に変形してしまうといった問題を起こす。(Prior Art) Long objects made of synthetic resin, such as automobile bumpers and spearhead boilers, expand and contract as the temperature rises and falls, causing significant deformation. For example, the coefficient of linear expansion of polypropylene is ]○×10-5/'C, while the coefficient of linear expansion of steel plate is 10×10-8/'C, which is an order of magnitude smaller than this. Bumpers attached to the body of automobiles have been exposed to the scorching sun on hot summer days and have been exposed to heat for over 50 years.
If the temperature exceeds 0.degree. C., the length of the steel plate will increase by 3 mm or more. For this reason, bumpers that are attached to the body with a gap of 2 mm to 5 mm may protrude from the side of the body, making installation difficult, or come into contact with parts of the body, peeling off the paint film and causing rust. Alternatively, the gap between the combination light and the bumper may be narrowed, or when it is attached to the body, heat expands between the parts, causing problems such as the bumper deforming into an arched shape with no escape.
（目的）
本発明はこのような問題に鑑みてなされたもので、その
目的とするところは、熱による膨張収縮を逃がしで、変
形を未然に防止することのできる樹脂製長尺物を提供す
ることにある。(Objective) The present invention was made in view of the above-mentioned problems, and its object is to provide a long resin object that can prevent deformation by releasing expansion and contraction caused by heat. There is a particular thing.
（目的を達成するための手段）
すなわち本発明はかがる目的を達成するための樹脂製長
尺物として、合成樹脂材よりなる長尺物を長手方向に少
なくとも３つの部分に分割形成し、各部分をこれらの間
に屈曲形成した薄肉連結部により結合一体とするととも
に、これらの部分のうちその両側に位フする部分の連結
部近傍に他部材への取付は部を設けて、他部材に取付け
た長尺物の温度による伸びもしくは収縮をこの薄肉連結
部により吸収するようにしたものである。(Means for Achieving the Object) That is, the present invention is a resin elongate object for achieving the object of darning, in which a long object made of a synthetic resin material is divided into at least three parts in the longitudinal direction, Each part is connected integrally by a thin connecting part formed by bending between them, and a part is provided near the connecting part of the part located on both sides of the part to attach it to other parts. This thin connection part absorbs the expansion or contraction caused by the temperature of the long object attached to it.
（実施例）
そこで以下に本発明の詳細を図示した実施例に基づいて
説明する。(Example) The details of the present invention will be described below based on illustrated examples.
第１図は本発明が適用された樹脂製バンパーの要部を断
面で示したものであり、第２図はこのバンパーを装着し
た自動車の一例を示したものである。FIG. 1 shows a cross section of the main part of a resin bumper to which the present invention is applied, and FIG. 2 shows an example of an automobile equipped with this bumper.
図において符号］は合成樹脂材により成形した長尺のバ
ンパーで、このバンパー１を、バンパーとしての所要の
断面形状を持つ中央部分２と両側部分３．３により分割
形成するとともに、中央部分２と両側部分３．３との間
に、バンパー１の裏面へ向けて断面Ｕ字状に屈曲する薄
肉の連結部４．４を形成し、中央部分２と両側部分３．
３をこれら２個所の連結部４．４により結合一体とする
ことによって１つのバンパー１として構成されている。Reference numeral in the figure] is a long bumper molded from a synthetic resin material.This bumper 1 is divided into a central portion 2 having the required cross-sectional shape as a bumper and side portions 3.3, and the central portion 2 and A thin connecting portion 4.4 bent toward the back surface of the bumper 1 in a U-shaped cross section is formed between the central portion 2 and both side portions 3.3.
3 are integrally connected by these two connecting portions 4.4, thereby forming one bumper 1.
そしてこのように構成されたバンパー１は、中央部分２
の中央上方に設けた取付は部５（第２図）と、両側部分
３．３の連結部４．４寄り近傍に設けた上下の取付は部
６．６．７．７を介して自動車のボディ９にポルト８を
もっで取付けられる。The bumper 1 configured in this way has a central portion 2.
The upper and lower mountings provided near the connecting portion 4.4 of the both side portions 3.3 are connected to the vehicle through the mounting portion 5 (Fig. 2) located above the center of the vehicle. Porto 8 can be attached to body 9 with more.
したがって、このように構成されたバンパー１は、炎天
下に曝されて高温になった場合でも、断面Ｕ字状に屈曲
した薄肉連結部４．４が図中２点鎖線で示したように大
きく屈曲して、ボディ９に中央を固定した中央部分２の
伸びを吸収し、同時に両側部分３．３は、連結部４．４
近傍の取っ付１す部６．６．７．７を基点として外方へ
わずかな伸びを示すだけとなって、バンパー１は全体と
して他に影ＶＩを及ぼすような変形をきたさなくなる。Therefore, even when the bumper 1 configured in this manner is exposed to the scorching sun and becomes hot, the thin connecting portion 4.4, which is bent in a U-shaped cross section, will bend significantly as shown by the two-dot chain line in the figure. This absorbs the elongation of the central portion 2 whose center is fixed to the body 9, and at the same time the both side portions 3.3 are connected to the connecting portions 4.4.
Since the bumper 1 as a whole exhibits only a slight outward extension from the nearby mounting portion 6.6.7.7, the bumper 1 as a whole does not undergo any deformation that would affect other parts.
第３図はりセスボイラに適用した本発明の他の実施例を
示したもので、このリセスボイラ１０は、断面Ｕ字状を
なす薄肉連結部１４．１４を介して結合した中央部分１
２と両側部分１３．１３かうなる基板１］（第２図）と
、この基板１１の上に接合し一体となしたりヤスボイラ
としての断面形状をなす発泡体１８とによって構成され
、このリセスボイラ１０を、第２図に示したように基板
中央部分］２の中央と、両側部分の連結部１４．１４寄
り近傍にそれぞれ設けたポルト１５．１６．１６によっ
でボディ９の後部上方に固定するようにしたものであっ
て、この実施例の場合でも、２個所のＵ字状薄肉連結部
１４．１４の撓みにより基板１］に生じる伸びあるいは
縮みを吸収してリヤスポイラ１ｏの変形を抑える。FIG. 3 shows another embodiment of the present invention applied to a beam recessed boiler, in which central portions 1 are connected via thin-walled connecting portions 14 and 14 having a U-shaped cross section.
2 and both side portions 13.13 (Fig. 2), and a foam 18 which is integrally bonded to the substrate 11 and has a cross-sectional shape as a recessed boiler. As shown in FIG. 2, it is fixed to the rear upper part of the body 9 by ports 15, 16, and 16 provided at the center of the board 2 and near the connection parts 14 and 14 on both sides, respectively. Even in the case of this embodiment, the deformation of the rear spoiler 1o is suppressed by absorbing the expansion or contraction that occurs in the substrate 1 due to the deflection of the two U-shaped thin-walled connecting portions 14 and 14.
なお以上は自動車のバンパー１及びリヤスポイラ１０の
例によって本発明を説明したものであるか、本発明はこ
のような実施例に限定されることなく、熱膨張係数の小
さな部材に取付けられるその他の合成樹脂製長尺物に対
しても適用することができる。The present invention has been explained above using examples of the bumper 1 and rear spoiler 10 of an automobile, but the present invention is not limited to these examples, and may be applied to other composites that can be attached to members with a small coefficient of thermal expansion. It can also be applied to long objects made of resin.
また、樹脂製長尺物が十分な長さを有する場合には、こ
れを３個に限らずそれ以上の部分に分割形成し、これら
を各部分の間に屈曲形成した薄肉連結部により結合一体
となして、各薄肉連結部によりその伸び及び縮みを吸収
するように構成することもできる。In addition, if the long resin object has a sufficient length, it may be divided into three or more parts, and these parts may be joined together by a thin connecting part formed by bending between each part. Therefore, each thin-walled connecting portion may be configured to absorb the expansion and contraction thereof.
（効果）
以上述べたように本発明によれば、熱膨張係数の比較的
大きな樹脂製長尺物を少なくとも３つの部分に分割形成
して、これらを屈曲形成した薄肉連結部により結合一体
となしたので、この長尺物を熱膨張係数の小ざな部材に
固定した場合でも、薄肉連結部の撓みにより各部分に生
じた熱的膨張及び収縮を吸収して、その変形を確実に抑
えることができる。(Effects) As described above, according to the present invention, a long resin material having a relatively large coefficient of thermal expansion is divided into at least three parts, and these parts are joined together by a thin connecting part formed by bending. Therefore, even when this long object is fixed to a member with a small coefficient of thermal expansion, it is possible to absorb the thermal expansion and contraction that occurs in each part due to the deflection of the thin connection part, and to reliably suppress the deformation. can.
しかも、この屈曲した薄肉連結部を長尺物の長手方向少
なくとも２個所膜けたため、この部分によって長尺物に
アクセントをつけることができ、自動車のバンパー等に
適用した場合においでは、その外観をより向上させるこ
とができる。Moreover, since this bent thin-walled connecting part is coated in at least two places in the longitudinal direction of a long object, it is possible to accentuate the long object with this part, and when applied to a car bumper, etc., the appearance can be improved. It can be further improved.
第１図は自動車のバンパーに適用した本発明の一実施例
をなす長尺物の断面図、第２図は自動車への装着状態を
示す図、第３図（ａ）はりヤスボイラに通用した本発明
の他の実施例を示す断面図、同図（ト）は同図（ａ）の
Ａ−Ａ線断面図である。
１・・・・バンパー ２．１２・・・・中央部
分３．１３・・・・両側部分
４．１４・・・・Ｕ字状薄肉連結部Figure 1 is a cross-sectional view of a long object that constitutes one embodiment of the present invention applied to an automobile bumper, Figure 2 is a diagram showing how it is installed on an automobile, and Figure 3 (a) is a book commonly used for beam boilers. A sectional view showing another embodiment of the invention, FIG. 1...Bumper 2.12...Central part 3.13...Both side parts 4.14...U-shaped thin connection part
Claims (1)
の部分に分割形成し、該各部分をこれらの間に屈曲形成
した薄肉連結部により結合一体とするとともに、上記各
部分のうちその両側に位置する部分の連結部近傍に他部
材への取付け部を設けたことを特徴とする変形防止機能
を有する樹脂製長尺物。A long object made of a synthetic resin material is divided into at least three parts in the longitudinal direction, and each part is joined together by a thin connecting part formed by bending between the parts, and on both sides of each part. 1. A long resin article having a deformation prevention function, characterized in that a portion for attaching to another member is provided near a connecting portion of a positioning portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27399887A JPH01114426A (en) | 1987-10-28 | 1987-10-28 | Long-size resin material article having deformation preventive function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27399887A JPH01114426A (en) | 1987-10-28 | 1987-10-28 | Long-size resin material article having deformation preventive function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01114426A true JPH01114426A (en) | 1989-05-08 |
Family
ID=17535523
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27399887A Pending JPH01114426A (en) | 1987-10-28 | 1987-10-28 | Long-size resin material article having deformation preventive function |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01114426A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2707584A1 (en) * | 1993-07-01 | 1995-01-20 | Transformat Mat Plastiques | System for fastening a deflector to the bodywork of a motor vehicle |
| JP2016500604A (en) * | 2012-10-17 | 2016-01-14 | コンパニ・プラステイツク・オムニウム | Auto parts that resist thermal deformation |
-
1987
- 1987-10-28 JP JP27399887A patent/JPH01114426A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2707584A1 (en) * | 1993-07-01 | 1995-01-20 | Transformat Mat Plastiques | System for fastening a deflector to the bodywork of a motor vehicle |
| JP2016500604A (en) * | 2012-10-17 | 2016-01-14 | コンパニ・プラステイツク・オムニウム | Auto parts that resist thermal deformation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4563374A (en) | Blow molded decorative or protective strip with temperature compensation | |
| JP4033772B2 (en) | Clip for fixing body structure element to automobile structure | |
| EP2426365B1 (en) | Fastening structure of resin member | |
| US4235466A (en) | Body side protective molding | |
| GB2166578A (en) | Decorative arrangement | |
| JPH01114426A (en) | Long-size resin material article having deformation preventive function | |
| JPH0223378B2 (en) | ||
| JPS6125574B2 (en) | ||
| JPH027086Y2 (en) | ||
| JPS5843471Y2 (en) | Automotive bumper side mounting structure | |
| JPH0137339Y2 (en) | ||
| JPS6233104B2 (en) | ||
| CA2305343A1 (en) | Protective bar for vehicle door | |
| JPH0221327Y2 (en) | ||
| JPH0640035Y2 (en) | Bumper facia corner shape retention structure | |
| KR19980012303U (en) | Bumper Fixture of Car | |
| JPH04254266A (en) | Fixing structure for large resin part | |
| KR0133782Y1 (en) | Plastic fender of a car | |
| JPS59220431A (en) | Mounting structure of resin-formed parts | |
| JPS6318285Y2 (en) | ||
| JPH0221288Y2 (en) | ||
| KR0119213Y1 (en) | Bumper stay structure of a vehicle | |
| JPH06106977A (en) | Structure for attaching bumper facia | |
| JP2505725Y2 (en) | Superstructure of automobile bumper | |
| KR970005406Y1 (en) | Fastening structure of a front mirror of a car |