JP2520462B2 - Automotive bumper mounting structure - Google Patents
Automotive bumper mounting structureInfo
- Publication number
- JP2520462B2 JP2520462B2 JP63332508A JP33250888A JP2520462B2 JP 2520462 B2 JP2520462 B2 JP 2520462B2 JP 63332508 A JP63332508 A JP 63332508A JP 33250888 A JP33250888 A JP 33250888A JP 2520462 B2 JP2520462 B2 JP 2520462B2
- Authority
- JP
- Japan
- Prior art keywords
- bracket
- bumper
- wall
- vertical wall
- vehicle body
- 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.)
- Expired - Fee Related
Links
Description
【発明の詳細な説明】 産業上の利用分野 この発明は、自動車用バンパの取付部構造に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vehicle bumper mounting structure.
従来の技術 自動車用バンパの取付部構造として例えば第4,5図に
示すものがある。2. Description of the Related Art For example, a structure of a mounting portion of a bumper for an automobile is shown in FIGS.
即ち、車体前後方向に配設されたリヤサイドメンバ１
がフロアパネル２に取付けられ、このリヤサイドメンバ
１内の縦壁3,3に板状のブラケット４が溶接固定され、
ブラケット４の下面にバンパステー５の上壁６がボルト
7,ナット８により取付けられている。That is, the rear side member 1 arranged in the front-rear direction of the vehicle body
Is attached to the floor panel 2, and the plate-like bracket 4 is welded and fixed to the vertical walls 3 and 3 in the rear side member 1,
The upper wall 6 of the bump paste 5 is bolted to the lower surface of the bracket 4.
7, Attached by nut 8.
上記バンパステー５はバンパレインフォース６に取付
けられ上壁が下側に傾斜して成形されているものであっ
て、下側に開いた断面略コ字状に形成されている（この
類似構造は、例えば実開昭62−122754号公報に示されて
いる）。The bumper stay 5 is attached to the bumper reinforcement 6 and has an upper wall that is inclined downward and is formed in a substantially U-shaped cross section that opens downward (this similar structure is For example, it is shown in Japanese Utility Model Laid-Open No. 62-122754).
発明が解決しようとする課題 例えば、車両衝突時等にバンパ、即ち、バンパレイン
フォース６に対して第４図に矢印で示すように荷重Ｆが
作用すると、この入力荷重Ｆによりバンパステー５が押
し込まれる方向に移動しようとするため、ブラケット４
には、このブラケット４を曲げ変形させる押し上げ力Ｐ
（第５図に矢印で示す）として作用しリヤサイドメンバ
１に対し十分に荷重を伝えることができないという問題
がある。Problems to be Solved by the Invention For example, when a load F acts on a bumper, that is, a bumper reinforcement 6 at the time of a vehicle collision as shown by an arrow in FIG. 4, the bump load stay 5 is pushed by the input load F. Bracket 4 to move in the direction
Is the pushing force P for bending and deforming the bracket 4.
There is a problem in that the load cannot be sufficiently transmitted to the rear side member 1 by acting as (indicated by an arrow in FIG. 5).
これに対して、上記ブラケット４の板厚を増加させる
ことによりブラケット４の曲げ変形を抑えることも考え
られるがこのようにすると、車体軽量化に逆行するとい
う問題が生ずる。On the other hand, it is conceivable to suppress the bending deformation of the bracket 4 by increasing the plate thickness of the bracket 4, but this causes a problem that it goes against the weight reduction of the vehicle body.
そこで、この発明は、車体骨格部材に対して十分に入
力荷重を伝えることができると共に車体軽量化を図るこ
とができる自動車用バンパの取付部構造を提供するもの
である。Therefore, the present invention provides a vehicle bumper mounting portion structure capable of sufficiently transmitting an input load to a vehicle body frame member and reducing the weight of the vehicle body.
課題を解決するための手段 車体前後方向に配置された断面逆ハット状の車体骨格
部材と、両側端を屈曲させて取付部を形成した断面略コ
字状のブラケットであって、上記取付部を車体骨格部材
に接合したブラケットと、断面が略コ字状に形成され、
かつその開口を下方へ向けて上記ブラケットの横壁下面
に横壁が取り付けられるバンパステーとからなる自動車
用バンパの取付部構造において、上記ブラケットの横壁
に、バンパステーの縦壁と略同一幅で、かつ略面一に連
なる縦壁が屈曲成形されるとともに、この縦壁と上記取
付部との間に上記横壁とは別の横壁が屈曲成形されてい
る。Means for Solving the Problems A vehicle body skeletal member having an inverted hat-shaped cross section arranged in a vehicle front-rear direction, and a bracket having a substantially U-shaped cross section in which both side ends are bent to form a mounting portion. A bracket joined to the body frame member and a cross section formed in a substantially U shape,
And, in a mounting portion structure of an automobile bumper, which comprises a bumper stay in which the lateral wall is attached to the lower surface of the lateral wall of the bracket with its opening facing downward, the lateral wall of the bracket has substantially the same width as the vertical wall of the bumper stay, and a substantially flat surface A vertical wall continuous with one is bent and formed, and a lateral wall different from the lateral wall is bent and formed between the vertical wall and the mounting portion.
作用 バンパ、即ちバンパステーに入力される荷重はバンパ
ステーの縦壁からブラケットの縦壁に速かに伝達され、
ブラケットが取付けられた車体骨格部材によって支持さ
れる。Action The load input to the bumper, or bumper stay, is quickly transmitted from the vertical wall of the bumper stay to the vertical wall of the bracket,
It is supported by a vehicle body frame member to which a bracket is attached.
実施例 以下、この発明の一実施例を図面と共に前記従来の構
成と同一部分に同一符号を付して詳述する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the drawings by attaching the same reference numerals to the same parts as those in the conventional structure.
第１〜３図において、車体前後方向に配設された車体
骨格部材としてのリヤサイドメンバ１はハット型断面形
状に形成されフロアパネル２の下面に溶接固定されてい
る。1 to 3, a rear side member 1 as a vehicle body skeletal member arranged in the vehicle front-rear direction is formed in a hat-shaped cross section and is fixed to a lower surface of a floor panel 2 by welding.
上記リヤサイドメンバ１の内部にはリヤサイドメンバ
１の縦壁3,3にまたがってブラケット４が溶接固定され
ている。Inside the rear side member 1, a bracket 4 is fixed by welding across the vertical walls 3, 3 of the rear side member 1.
上記ブラケット４は、後述するリヤバンパのバンパス
テー５を取付ける横壁９の両側に縦壁10が立ち上げ形成
された長尺の部材であって、この縦壁10の上縁には他の
横壁20が延設されている。さらに、この横壁20の外側縁
には、リヤサイドメンバ１の縦壁３に接合される取付部
11が延設されている。The bracket 4 is a long member in which vertical walls 10 are formed on both sides of a horizontal wall 9 to which a bumper stay 5 of a rear bumper, which will be described later, is formed, and another horizontal wall 20 extends on the upper edge of the vertical wall 10. It is set up. Further, an attachment portion joined to the vertical wall 3 of the rear side member 1 is attached to the outer edge of the lateral wall 20.
11 have been extended.
そして、上記ブラケット４の縦壁10はリヤサイドメン
バ１の奥側ほど立ち上げ幅が増加し、結果的に横壁９が
下側に傾斜するようになっており、上記横壁９には、バ
ンパステー５に対する位置決め孔12と取付孔13が形成さ
れている。尚、上記ブラケット４の縦壁10はプレス加工
の際の型抜きの関係で横壁９に対してやや開いた形状と
なっている。The vertical wall 10 of the bracket 4 has a rising width which increases toward the rear side of the rear side member 1, and as a result, the lateral wall 9 is inclined downward. The lateral wall 9 is positioned with respect to the bumper stay 5. A hole 12 and a mounting hole 13 are formed. The vertical wall 10 of the bracket 4 has a shape slightly opened with respect to the horizontal wall 9 due to the die cutting during press working.
そして、上記ブラケット４にはバンパレインフォース
６に取付けられたバンパステー５が取付けられている。A bump paste 5 attached to a bumper reinforcement 6 is attached to the bracket 4.
上記バンパステー５は断面略コ字状の部材であって、
横壁14と両側の縦壁15,15を有し、上記横壁14には前記
ブラケット４の位置決め孔12に差し込まれる爪16及び前
記ブラケット４の取付孔13に整合する取付孔17が形成さ
れ、バンパステー５の爪16をブラケット４の位置決め孔
12に差し込んだ状態で各取付孔13,17を整合させてボル
ト7,ナット８によりバンパステー５がブラケット４に締
め付け固定されている。The bumper stay 5 is a member having a substantially U-shaped cross section,
It has a horizontal wall 14 and vertical walls 15 and 15 on both sides. The horizontal wall 14 is provided with a pawl 16 to be inserted into the positioning hole 12 of the bracket 4 and a mounting hole 17 which is aligned with the mounting hole 13 of the bracket 4. 5 nail 16 to the positioning hole of bracket 4
The bumper stay 5 is fastened and fixed to the bracket 4 with the bolts 7 and the nuts 8 by aligning the mounting holes 13 and 17 with the mounting holes 13 and 17 inserted.
なお、バンパステー５は開口21を下方へ向けて取り付
けられている。The bump paste 5 is attached with the opening 21 facing downward.
ここで、上記ブラケット４の縦壁10,10面は、前記バ
ンパステー５の縦壁15,15面と同一平面を成すように形
成され、両者を取付けた状態において両縦壁10,15が上
下に連続するようになっている。尚、ここで上記バンパ
ステー５の縦壁15,15も前記ブラケット４の縦壁10,10と
同様に型抜きの関係でやや開いた形状となっている。Here, the vertical walls 10 and 10 of the bracket 4 are formed so as to be flush with the vertical walls 15 and 15 of the bumper stay 5, and when the both are attached, the vertical walls 10 and 15 are vertically arranged. It has become continuous. Here, the vertical walls 15, 15 of the bumper stay 5 are also slightly opened due to the die-cutting relationship like the vertical walls 10, 10 of the bracket 4.
上記実施例構造によれば、リヤバンパを取付ける場合
には、バンパステー５をリヤサイドメンバ１内に差し込
み、ブラケット４の横壁９の位置決め孔12にバンパステ
ー５の爪６を差し込んで、バンパステー５の横壁14をブ
ラケット４の横壁９に整合させればリヤバンパは正確に
位置決めされ、前記各取付孔13,17にボルト７を挿入し
ナット８で締め付ければ良い。According to the structure of the above embodiment, when mounting the rear bumper, the bumper stay 5 is inserted into the rear side member 1, the claws 6 of the bumper stay 5 are inserted into the positioning holes 12 of the lateral wall 9 of the bracket 4, and the lateral wall 14 of the bumper stay 5 is attached. The rear bumper can be accurately positioned by aligning it with the lateral wall 9 of the bracket 4, and the bolt 7 may be inserted into each of the mounting holes 13 and 17 and tightened with the nut 8.
そして、このように取付けられたリヤバンパに入力荷
重Ｆが作用すると、この入力荷重Ｆはバンパステー５を
押し込む力となるが、この押し込み力によって生ずる押
し上げ力Ｐはバンパステー５の縦壁15から速やかにブラ
ケット４の縦壁10へと伝達されブラケット４に対して強
度的に有利なせん断方向に作用するため、ブラケット４
は変形せず、そのままリヤサイドメンバ１に荷重分担さ
れる。When the input load F acts on the rear bumper thus mounted, the input load F acts as a force for pushing the bump paste 5, and the pushing force P generated by this pushing force is promptly applied from the vertical wall 15 of the bump past stay 5 to the bracket. 4 is transmitted to the vertical wall 10 and acts on the bracket 4 in a shearing direction which is advantageous in terms of strength.
Does not deform, and the load is shared by the rear side member 1 as it is.
したがって、入力荷重Ｆはバンパステー5,ブラケット
４を介してロスすることなくリヤサイドメンバ１に伝達
されるのである。Therefore, the input load F is transmitted to the rear side member 1 via the bump stay 5 and the bracket 4 without loss.
その結果、ブラケット４の板厚を増加させる必要もな
く、ブラケット４の変形を抑え、入力荷重をリヤサイド
メンバ１で受けることができる。As a result, it is not necessary to increase the plate thickness of the bracket 4, deformation of the bracket 4 can be suppressed, and the input load can be received by the rear side member 1.
尚、この発明は上記実施例に限られず、フロントバン
パに適用しても良い。The present invention is not limited to the above embodiment, but may be applied to the front bumper.
発明の効果 以上説明してきたようにこの発明によれば、ブラケッ
トにバンパステーの縦壁と略同一幅で、かつ略面一に連
なる縦壁を屈曲成形して、この縦壁と取付部との間に他
の横壁を形成することで、ブラケットの剛性を高めてい
るので、車両衝突時にブラケットからバンパステーに押
し上げ力が作用しても、ブラケットの変形が効果的に抑
制され、衝撃荷重が車体骨格部材に確実に伝えられる。
この結果、ブラケットの剛性を高めるため肉厚を増加さ
せる必要がなくなり、車体の軽量化を図ることができ
る。EFFECTS OF THE INVENTION As described above, according to the present invention, a vertical wall having substantially the same width as the vertical wall of the bumper stay and being substantially flush with the bracket is formed by bending, and a space between the vertical wall and the mounting portion is formed. Since the rigidity of the bracket is increased by forming another lateral wall on the bracket, the deformation of the bracket is effectively suppressed even if a pushing force is applied from the bracket to the bumper stay at the time of a vehicle collision, and the impact load is reduced. Is surely transmitted to.
As a result, it is not necessary to increase the wall thickness to increase the rigidity of the bracket, and the weight of the vehicle body can be reduced.
したがって、ブラケットの強度を高めるため板厚を増
加させる等の必要がなく車体軽量化を図ることができる
という効果がある。Therefore, it is possible to reduce the weight of the vehicle body without increasing the thickness of the bracket to increase the strength of the bracket.
第１図はこの発明の実施例の第２図のＩ−Ｉ線に沿う断
面図、第２図は第３図のII−II線に沿う断面図、第３図
はバンパステーの取り付け状態を示す斜視図、第４図は
従来技術の側面図、第５図は第４図のＶ−Ｖ線に沿う断
面図である。 １…リヤサイドメンバ（車体骨格部材）、４…ブラケッ
ト、５…バンパステー、10…縦壁、15…縦壁。1 is a sectional view taken along the line II of FIG. 2 of the embodiment of the present invention, FIG. 2 is a sectional view taken along the line II-II of FIG. 3, and FIG. FIG. 4 is a perspective view, FIG. 4 is a side view of the prior art, and FIG. 5 is a sectional view taken along the line VV of FIG. 1 ... Rear side member (body frame member), 4 ... Bracket, 5 ... Bum paste, 10 ... Vertical wall, 15 ... Vertical wall.
Claims (1)
の車体骨格部材と、両側端を屈曲させて取付部を形成し
た断面略コ字状のブラケットであって、上記取付部を車
体骨格部材に接合したブラケットと、断面が略コ字状に
形成され、かつその開口を下方へ向けて上記ブラケット
の横壁下面に横壁が取り付けられるバンパステーとから
なる自動車用バンパの取付部構造において、上記ブラケ
ットの横壁に、バンパステーの縦壁と略同一幅で、かつ
略面一に連なる縦壁が屈曲成形されるとともに、この縦
壁と上記取付部との間に上記横壁とは別の横壁が屈曲成
形されていることを特徴とする自動車用バンパの取付部
構造。1. A vehicle body skeleton member having an inverted hat-shaped cross section, which is arranged in a front-rear direction of a vehicle body, and a bracket having a substantially U-shaped cross-section in which both side ends are bent to form a mounting portion. A bracket part joined to a member, and a bumper stay structure for an automobile, comprising: a bracket having a substantially U-shaped cross section and having a lateral wall attached to a lower surface of the lateral wall of the bracket with its opening facing downward. A vertical wall that is approximately the same width as the bumper stay vertical wall and is substantially flush with the vertical wall is formed by bending, and a horizontal wall different from the horizontal wall is formed by bending between the vertical wall and the mounting portion. The structure of the mounting part of the automobile bumper, which is characterized in that
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63332508A JP2520462B2 (en) | 1988-12-28 | 1988-12-28 | Automotive bumper mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63332508A JP2520462B2 (en) | 1988-12-28 | 1988-12-28 | Automotive bumper mounting structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02175453A JPH02175453A (en) | 1990-07-06 |
| JP2520462B2 true JP2520462B2 (en) | 1996-07-31 |
Family
ID=18255715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63332508A Expired - Fee Related JP2520462B2 (en) | 1988-12-28 | 1988-12-28 | Automotive bumper mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2520462B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3206140B2 (en) * | 1992-10-13 | 2001-09-04 | スズキ株式会社 | Bumper mounting structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5972154U (en) * | 1982-11-06 | 1984-05-16 | トヨタ自動車株式会社 | Vehicle body structural components at bumper attachment area |
-
1988
- 1988-12-28 JP JP63332508A patent/JP2520462B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02175453A (en) | 1990-07-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |