JPS61249856A - Bumper support structure for automobile - Google Patents
Bumper support structure for automobileInfo
- Publication number
- JPS61249856A JPS61249856A JP9266985A JP9266985A JPS61249856A JP S61249856 A JPS61249856 A JP S61249856A JP 9266985 A JP9266985 A JP 9266985A JP 9266985 A JP9266985 A JP 9266985A JP S61249856 A JPS61249856 A JP S61249856A
- Authority
- JP
- Japan
- Prior art keywords
- stay
- bumper
- flanges
- plastic
- support structure
- 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.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R19/00—Wheel guards; Radiator guards, e.g. grilles; Obstruction removers; Fittings damping bouncing force in collisions
- B60R19/02—Bumpers, i.e. impact receiving or absorbing members for protecting vehicles or fending off blows from other vehicles or objects
- B60R19/24—Arrangements for mounting bumpers on vehicles
- B60R19/26—Arrangements for mounting bumpers on vehicles comprising yieldable mounting means
Abstract
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明は、自動車用バンバの支持構造に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a support structure for an automobile bumper.
（従来技術）
自動車用バンパは、車体前後方向に延びる取り付ステー
を介して車体に支持するのが普通であり、その−例は、
たとえば実開昭５９−１３２４５４号公報に示されてい
る。この公開実用新案公報にも述べられているように、
この取付ステーは鋼板により構成されている。(Prior Art) Automobile bumpers are normally supported on the vehicle body via mounting stays that extend in the longitudinal direction of the vehicle body.
For example, it is shown in Japanese Utility Model Application Publication No. 59-132454. As stated in this Public Utility Model Bulletin,
This mounting stay is made of a steel plate.
（発明が解決しようとする問題点）
自動車のバンパ構造においては、バンパに衝撃力が加わ
ったとき、ステーに変形を生じて衝撃エネルギーを吸収
するが、鋼板製ステーでは、衝撃力が大きくなると、ス
テーに生じる応力が弾性限界を越し、ステーに塑性変形
を生じて交換の必要を生ずる。また、工、ネルギー吸収
能力も従来の鋼板製ステーでは限界がある。(Problems to be Solved by the Invention) In the bumper structure of an automobile, when an impact force is applied to the bumper, the stay deforms and absorbs the impact energy, but with a steel plate stay, when the impact force increases, The stress generated in the stay exceeds its elastic limit, causing plastic deformation in the stay and requiring replacement. In addition, conventional steel plate stays have limits in terms of mechanical strength and energy absorption capacity.
（問題点を解決するための手段）
本発明に右いては、上記問題点を解°決するため、バン
パを自動車車体に取付けるためのステーをプラスチック
製のエネルギー吸収体により構成する。(Means for Solving the Problems) According to the present invention, in order to solve the above problems, the stays for attaching the bumper to the automobile body are constructed from plastic energy absorbers.
エネルギー吸収体としては、格子構造のプラスチック成
形体、あるいは発泡プラスチックの成形体を用いること
ができ、また格子構造と発泡プラスチックとを組合わせ
て用いてもよい。As the energy absorber, a plastic molded body with a lattice structure or a foamed plastic molded body may be used, or a lattice structure and a foamed plastic body may be used in combination.
（作用）
本発明の上述の構成においては、バンパに衝撃力が加わ
ったとき、ステーを形成するプラスチック製のエネルギ
ー吸収体に変形を生じ、エネルギーが吸収される。プラ
スチックは復元メモリー性をもつため、外部衝撃力によ
る変形が生じても、時間とともに元の形状に復帰し、塑
性変形を生じない。(Function) In the above-described configuration of the present invention, when an impact force is applied to the bumper, the plastic energy absorber forming the stay is deformed and energy is absorbed. Plastic has recovery memory properties, so even if it is deformed by an external impact force, it will return to its original shape over time and will not undergo plastic deformation.
（効果）
上述したように、本発明においては、バンバ取付用ステ
ーをプラスチック製のエネルギー吸収体にらり構成した
ので、重量にたいするエネルギー吸収能力が大きく、し
たがってエネルギー吸収効率の高いバンパ支持構造が得
られる。また、衝撃による変形を生じても、元の形状に
復元する性質を有するので、塑性変形を生じず、バンバ
交換の必要性が減少する。(Effects) As described above, in the present invention, since the bumper mounting stay is made of a plastic energy absorber, a bumper support structure with large energy absorption capacity relative to weight and high energy absorption efficiency can be obtained. It will be done. Furthermore, even if deformation occurs due to impact, it has the property of restoring to its original shape, so plastic deformation does not occur, reducing the need for bumper replacement.
（実施例） 第１図ないし第３図にバンパ取付ステーの一例を示す。(Example) An example of a bumper mounting stay is shown in FIGS. 1 to 3.
本例では、ステー１は、プラスチック材料の一体成形体
からなり、前方が開口する中空箱体１ａの内部に、適当
な間隔で垂直壁１ｂおよび水平壁ＩＣが形成されて、格
子構造をなしている。In this example, the stay 1 is made of an integrally molded plastic material, and has a lattice structure in which vertical walls 1b and horizontal walls IC are formed at appropriate intervals inside a hollow box body 1a that is open at the front. There is.
箱体１ａの上部両側には取付フランジ１ｄが形成され、
同様に下部両側にも取付フランジ１ｅが形成されている
。第４図は、このステー１を用いてバンパを取付けた状
態を示すもので、バンバ２は上部および下部に取付フラ
ンジ２ａ、２ｂを有し、これら取付フランジ２ａ１２ｂ
が、ボルト３により、ステー１の取付フランジｌｄ、ｌ
ｅに取付けられる。ステー１の箱体１ａの後部には、背
壁１ｆが形成されており、この背壁１ｆが、車体のフレ
ーム４にボルト５により取りつけられる。Mounting flanges 1d are formed on both sides of the upper part of the box body 1a,
Similarly, mounting flanges 1e are formed on both sides of the lower part. FIG. 4 shows a state in which a bumper is installed using this stay 1. The bumper 2 has mounting flanges 2a, 2b at the upper and lower parts, and these mounting flanges 2a12b
However, with the bolts 3, the mounting flanges ld and l of the stay 1 are fixed.
Attached to e. A back wall 1f is formed at the rear of the box body 1a of the stay 1, and this back wall 1f is attached to the frame 4 of the vehicle body with bolts 5.
第５図はステー１の衝撃エネルギー吸収能力を示すもの
である。外力が弾性限界内にあるときは、ステーの変形
は線ａに沿って生じ、外力がなくなると、元の形状にそ
のまま復帰する。この状態を矢印す、ｃで示す。外力が
弾性限界を越すと、ステー１は線ｄに沿って変形し、た
とえば変形が０点まで進んだときのエネルギー吸収量は
、影線で示すように曲線ａ、ｄで囲まれる面積で表わさ
れる大きさになる。外力がなくなると、ステーはそのと
きの変形状態に応じて、たとえば曲線ｆＳｇ、ｈで示す
ように形状を復元し、最終的には元の形状に戻る。この
ように、外力が破断荷重以内であれば、ステー１は元の
形状まで復元することができる。このように、エネルギ
ー吸収能力が大きく、かつ復元性のあるステーが構成さ
れる。尚、本発明は上記実施例に限定されず箱状のプラ
スチック体の中に発泡体（例えば発泡ウレタン）を介在
させ、これをバンパのステーとして構成する等積々の構
成をとるものである。FIG. 5 shows the impact energy absorption ability of the stay 1. When the external force is within the elastic limit, the stay deforms along line a, and when the external force is removed, it returns to its original shape. This state is shown by arrows c and c. When the external force exceeds the elastic limit, the stay 1 deforms along the line d. For example, when the deformation progresses to the 0 point, the amount of energy absorbed is expressed by the area surrounded by curves a and d, as shown by the shaded line. It will be large enough to hold. When the external force is removed, the stay restores its shape as shown by curves fSg and h, depending on the state of deformation at that time, and eventually returns to its original shape. In this way, if the external force is within the breaking load, the stay 1 can be restored to its original shape. In this way, a stay with high energy absorption capacity and resilience is constructed. It should be noted that the present invention is not limited to the above-mentioned embodiments, but may have a multilayer structure in which a foam (for example, foamed urethane) is interposed in a box-shaped plastic body and the foam is used as a bumper stay.
第１図は本発明の一実施例を示すバンバ取付ステーの斜
視図、第２図はその平面図、第３図は正面図、第４図は
バンパの取付状態を示す側面図、第５図は外力に対する
ステーの変形を示す図表である。
１・・・・・・ステー、１ｂ・・・・・・垂直壁、１ｃ
・・・・・・水平壁、ｌｄ、ｌｅ・・・・・・取付フラ
ンジ、２・・・・・・バンパ、４・・・・・・フレーム
。
第１図
第２図
第３図Fig. 1 is a perspective view of a bumper mounting stay showing an embodiment of the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a front view, Fig. 4 is a side view showing the bumper mounting state, and Fig. 5 is a chart showing the deformation of the stay in response to external force. 1... Stay, 1b... Vertical wall, 1c
...Horizontal wall, ld, le...Mounting flange, 2...Bumper, 4...Frame. Figure 1 Figure 2 Figure 3
Claims (3)
車用バンパの支持構造において、前記ステーはプラスチ
ック製のエネルギー吸収体からなることを特徴とする自
動車用バンパの支持構造。(1) An automobile bumper support structure in which a bumper is attached to an automobile body by a stay, wherein the stay is made of a plastic energy absorber.
いて、前記エネルギー吸収体は、プラスチックの格子構
造からなる支持構造。(2) In the support structure for an automobile bumper according to the above item (1), the energy absorber is made of a plastic lattice structure.
いて、前記エネルギー吸収体は、発泡プラスチックから
なる支持構造。(3) In the support structure for an automobile bumper according to item (1), the energy absorber is made of foamed plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9266985A JPS61249856A (en) | 1985-04-30 | 1985-04-30 | Bumper support structure for automobile |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9266985A JPS61249856A (en) | 1985-04-30 | 1985-04-30 | Bumper support structure for automobile |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61249856A true JPS61249856A (en) | 1986-11-07 |
| JPH0551494B2 JPH0551494B2 (en) | 1993-08-02 |
Family
ID=14060882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9266985A Granted JPS61249856A (en) | 1985-04-30 | 1985-04-30 | Bumper support structure for automobile |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61249856A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0257752U (en) * | 1988-10-20 | 1990-04-25 | ||
| WO1992007734A2 (en) * | 1990-11-06 | 1992-05-14 | Concept Analysis Corp. | Elastomeric energy absorbing mechanism for vehicle bumpers |
| DE19732064A1 (en) * | 1997-07-25 | 1999-02-11 | Audi Ag | Deformation element |
| JP2007529360A (en) * | 2004-03-16 | 2007-10-25 | コンパニ・プラステイツク・オムニウム | An assembly comprising at least two lower supports for a vehicle bumper and an assembly comprising two front blocks |
| JP2007533547A (en) * | 2004-04-23 | 2007-11-22 | ルノー・エス・アー・エス | Automotive front structure |
-
1985
- 1985-04-30 JP JP9266985A patent/JPS61249856A/en active Granted
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0257752U (en) * | 1988-10-20 | 1990-04-25 | ||
| JPH0547003Y2 (en) * | 1988-10-20 | 1993-12-09 | ||
| WO1992007734A2 (en) * | 1990-11-06 | 1992-05-14 | Concept Analysis Corp. | Elastomeric energy absorbing mechanism for vehicle bumpers |
| US5150935A (en) * | 1990-11-06 | 1992-09-29 | Concept Analysis Corp. | Elastomeric energy absorbing mechanism for vehicle bumpers |
| WO1992007734A3 (en) * | 1990-11-06 | 1992-12-23 | Concept Analysis Corp | Elastomeric energy absorbing mechanism for vehicle bumpers |
| DE19732064A1 (en) * | 1997-07-25 | 1999-02-11 | Audi Ag | Deformation element |
| DE19732064C2 (en) * | 1997-07-25 | 2001-03-08 | Audi Ag | Deformation element |
| JP2007529360A (en) * | 2004-03-16 | 2007-10-25 | コンパニ・プラステイツク・オムニウム | An assembly comprising at least two lower supports for a vehicle bumper and an assembly comprising two front blocks |
| JP2007533547A (en) * | 2004-04-23 | 2007-11-22 | ルノー・エス・アー・エス | Automotive front structure |
| JP4836937B2 (en) * | 2004-04-23 | 2011-12-14 | ルノー・エス・アー・エス | Automotive front structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0551494B2 (en) | 1993-08-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |